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Open Access Review

A Review on the Application of the MPC Technology in Wind Power Control of Wind Farms

Received: 23 April 2021;  Published: 15 July 2021;  doi: 10.21926/jept.2103033

Abstract

Due to the uncertainty and volatility of wind speed, its natural output power also exhibits strong volatility. In order to avoid the negative effects of the excessive fluctuation of the output power of wind turbines in the wind farm and the power grid, it is very important to accurately predict and reasonably plan and control the output power of the wind farm. Model predictive control (MPC) is a type of advanced control method that can deal with a multi-input multi-output nonlinear system. Compared to the tradition [...]

2584 17632

Open Access Research Article

Synthetical Optimal Design for Passive-Damped LCL Filters in Islanded AC Microgrid

Received: 19 May 2021;  Published: 08 July 2021;  doi: 10.21926/jept.2103032

Abstract

In AC microgrid systems, technical issues resulting from the power control effect are the power control method efficiency and the filter resonance since voltage-frequency interference and filtering resonance may cause significant control input reduction and oscillation. A simple and robust solution is to regulate active power flow by adding an optimal passive damping resistor. The optimal LCL filter parameterization process in this paper provides an innovative approach to obtain the optimal quality factor and the o [...]

2493 17938

Open Access Original Research

Measurements of Overwater Gust Factor from Near Surface to Beyond Common Hub Height: A Case Study

Received: 13 December 2020;  Published: 06 July 2021;  doi: 10.21926/jept.2103031

Abstract

In September 2020 Hurricane Sally affected the north central Gulf of Mexico. Making use of the anemometers data available at 4 oil rigs over the affected region, it is found that, when the atmospheric stability was near-neutral, the gust factor (G) decreases linearly with height from approximately 1.28 at 35m above the sea surface to 1.18 at 160 m. In other words, G decreases linearly at the rate around 8% per 100 m from the typical hub height to beyond common hub height. Based on the linear equation found in this [...]

1805 8732

Open Access Original Research

Design and Implementation of a Laboratory Sucker Rod Pumping Unit Using Industry 4.0 Concepts

Received: 15 February 2021;  Published: 30 June 2021;  doi: 10.21926/jept.2102030

Abstract

The Industry 4.0 is here, and advanced technologies are widely available for domains such oil and gas which are traditionally slow in adopting extreme new technologies. This paper presents the design architecture and implementation of effective data acquisition (DAQ) and monitoring system applied to an experimental sucker rod pumping unit for both event occurrence and educational purpose using latest technological advancements and industry 4.0 principles. The designed framework allows control and monitoring of anal [...]

3126 16200

Open Access Review

Dynamic Behavior of Li in Solid-State Li-Ion Batteries Studied using MeV Ion Beam Analysis Techniques

Received: 26 March 2021;  Published: 24 June 2021;  doi: 10.21926/jept.2102029

Abstract

In this review, various studies on the Li depth profiles of metal/electrolyte/metal capacitors and batteries of Au/LCO/LATP/Pt, LCO/LiPON/Si, and LMO/LiPON/NbO with different metal electrodes at both sides (by bias; LCO =LiCoO2, LATP =Li3.1Al0.86Ti1.14Ge1.27P1.73O12, LMO =LiMn2O4, NbO = Nb2O5) using the in-situ reflection ERD (ERD) technique with 9MeV O+4 ion beam and transmission ERD (TERD) technique with 5MeV He+2 ion beam, respectively, are described. For capacitors, the transport fraction of Li-ion in the elect [...]

1974 10248

Open Access Original Research

Development of Wind IPMSG Based Bipolar DC Microgrids

Received: 25 February 2021;  Published: 22 June 2021;  doi: 10.21926/jept.2102028

Abstract

This paper presents the development of a wind Interior Permanent-Magnet Synchronous Generator (IPMSG) based bipolar DC microgrids along with various switch-mode rectifiers. Firstly, the wind IPMSG is established and adequately controlled to possess satisfactory generating characteristics during different driven speeds and loads. Later, the boost switch-mode rectifier (SMR) based bipolar DC bus is established. Further, three-phase single-switch (3P1SW) boost SMR, three-phase two-switch (3P2SW) three-level boost SMR, [...]

1931 10399

Open Access Original Research

Automated Probabilistic Analysis and Parametric Modelling of the Seasonal-Diurnal Wind Vector

Received: 14 April 2021;  Published: 25 June 2021;  doi: 10.21926/jept.2102027

Abstract

A refined and extended version of the Offset Elliptical Normal mixture model has been developed to parameterise the seasonal diurnal wind vector automatically. Automated using R scripts, the method eliminates any potential risk of confirmation bias posed by the manual supervision in the original method. Refinements to the method include the latest algorithms for clustering of Gaussian mixtures, with Bayesian regularisation to set the number of components and to limit the predisposition to overfit. A new extension u [...]

1840 9829

Open Access Research Article

Numerical Investigation of Pyrotechnical Initiators and Their Impact in Airbag Inflator Applications: Ballistic Modeling and Functional Analysis

Received: 02 April 2021;  Published: 28 June 2021;  doi: 10.21926/jept.2102026

Abstract

A numerical model describing the ballistic behavior of a commercially used initiator is presented in this article. This model was built on the principle of conservation of mass and energy in the multi-phase framework incorporated with multi-loaded conditions. After obtaining the information about the grain size distribution in each composite, a fixing factor was proposed based on the surface area ratio of the composites. Thus, the solid propellant burning process based on distributed grain size was described, and t [...]

3788 19394

Open Access Original Research

Estimating Met-Ocean Parameters during a Tropical Cyclone for Marine Science and Engineering

Received: 16 April 2021;  Published: 16 June 2021;  doi: 10.21926/jept.2102025

Abstract

During a tropical cyclone (TC) worldwide, the Regional and Mesoscale Meteorological Branch (RAMMB) of NOAA/NESDIS (http://rammb.cira.colostate.edu/) issues real-time TC surface wind analyses. The purpose of this article is to provide value-added estimations of several meteorological and oceanographic (met-ocean) parameters including overwater friction velocity and turbulence intensity, variation of the wind speed with height, significant wave height, peak or dominant wave period, wind-driven currents and wind-stres [...]

2253 12329

Open Access Original Research

Performance Investigation of a Nickel Cermet Anode Modified with Copper, Alkaline Earth Metal Oxide, Boron, and Perovskite for Direct Methane Fuel Cell

Received: 26 April 2021;  Published: 11 June 2021;  doi: 10.21926/jept.2102024

Abstract

The metallic copper, alkaline earth metal oxide, boron, and perovskite were incorporated on the surface of a Ni-cermet anode, and the performance of the modified Solid Oxide Fuel Cell (SOFC) anode was evaluated. The cell performance was analyzed by voltage-current characteristics (V-I curve) and H2-CH4 step reactions (P-t curve) in a potentiostatic mode. Besides, we also determined if a metallic phase or high electronic conductivity of the anode is important for a cell to perform well when H2 is used as a fuel, whe [...]

2435 13401

Open Access Research Article

Interconnected Operations of Electric Vehicle to Grid and Microgrid

Received: 19 December 2020;  Published: 31 May 2021;  doi: 10.21926/jept.2102023

Abstract

This paper presents the development of a high-performance electric vehicle (EV) synchronous reluctance motor (SynRM) drive and its vehicle-to-grid (V2G) and vehicle-to-microgrid (V2M) bidirectional operations. The EV motor drive boostable DC-link voltage is established by a battery through a bilateral interface boost-buck DC-DC converter for good driving performance over a wide speed range. The motor efficiency is 92.3% near the rated load. In idle conditions, the embedded interface converter and inverter of the mo [...]

2497 13129

Open Access Original Research

An Ab Initio Study of Li/Ni-doped NaxMeO2 Cathode Material for Na-Ion Batteries

Received: 02 November 2020;  Published: 10 June 2021;  doi: 10.21926/jept.2102022

Abstract

The current state-of-the-art quantum mechanics methodologies were applied to derive information on the bulk and surface properties of the P2-type layered oxide Na0.85Li0.17Ni0.21Mn0.64O2 (NLNMO), a cathode material. The special quasi-random structure (SQS) approach was employed to identify the arrangement of Li, Ni, and Mn ions in a supercell containing 115 atoms. Both the cell parameters and atomic positions were determined from DFT-PBE+U calculations to highlight specific distortions induced by the dopants (Ni an [...]

2495 12818

Open Access Original Research

Damage Mechanics of Carbon Nanotubes

Received: 27 October 2020;  Published: 10 May 2021;  doi: 10.21926/jept.2102021

Abstract

A robust mathematical method for the characterization of damage in carbon nanotubes is presented the presentation here is limited to elasticity. In this regard, the second and third order elastic stiffnesses are employed. All this is based on damage mechanics. The hypotheses of elastic strain equivalence and elastic energy equivalence are utilized. A new damage variable is proposed that is defined in terms of the surface area. This is in contrast to the classical damage variable which is defined in terms of the cro [...]

1654 8668

Open Access Review

Hybrid Materials and Nanoparticles for Hybrid Silicon Solar Cells and Li-Ion Batteries

Received: 09 November 2020;  Published: 08 May 2021;  doi: 10.21926/jept.2102020

Abstract

Hybrid composites based on inorganic nanomaterials embedded into a polymer matrix have were synthesized and characterized. Oxide semiconductor nanoparticles (SnO, SnO2, TiO2, Ga2O3, and NiO) and Si nanoparticles were employed as inorganic counterparts in the hybrid composite, while a conductive polymer (PEDOT:PSS) with diverse additives was used as the organic matrix. The composites were spin-coated on Si or glass substrates. The potential use of these materials in photovoltaic devices to improve Si surface passiva [...]

2487 12414

Open Access Review

Lithium Metal Anode for High-Power and High-Capacity Rechargeable Batteries

Received: 21 February 2021;  Published: 08 May 2021;  doi: 10.21926/jept.2102019

Abstract

Because lithium metal exhibits high specific capacity and low potential, it is the best candidate for fabricating anodes for batteries. Rechargeable batteries fabricated using lithium anode exhibit high capacity and high potential cathode; these can be potentially used to fabricate high energy density batteries (>500 Wh kg-1) that can be used for the development of next-generation electric vehicles. However, the formation and growth of lithium dendrites and the low coulombic efficiency recorded during lithiu [...]

3031 19517

Open Access Research Article

A Wind Turbine Emulator Using Field-Oriented Induction Motor

Received: 18 December 2020;  Published: 28 April 2021;  doi: 10.21926/jept.2102018

Abstract

This paper proposes a Wind Turbine Emulator (WTE) using an Indirect Field Oriented (IFO) Induction Motor (IM). The IM drive can be controlled as a conventional prime mover in speed mode, or a wind turbine in torque-speed mode via robust observed torque control. This paper presents key issues for establishing a high-performance IFO IM drive. Further, this study develops a wind turbine load Interior Permanent-Magnet Synchronous Generator (IPMSG) followed by a three-phase Vienna Switch-Mode Rectifier (SMR). It receive [...]

2218 11546

Open Access Research Article

Hot Water Preparation along with Combined Solar Thermochemical Energy Storage System: Experimental Validation and Performance Simulation

Received: 18 December 2020;  Published: 14 April 2021;  doi: 10.21926/jept.2102017

Abstract

Hybrid solar thermal systems are considered to be a promising solution for delivering clean thermal energy for the building sector, especially while combining them with other renewable energy sources. Usually, solar energy production does not match the thermal energy demand, and hence the energy storage must be integrated. Thermochemical energy storage is adapted particularly to be used along with solar thermal applications. In this article, the design of the combined solar thermochemical energy storage system is p [...]

1763 9785

Open Access Research Article

A Switched-Reluctance Motor Drive Powered by Switch-Mode Rectifier with Battery Energy Storage Buffer

Received: 23 December 2020;  Published: 07 April 2021;  doi: 10.21926/jept.2102016

Abstract

This paper presents a three-phase full-bridge boost switch-mode rectifier (SMR) fed switched-reluctance motor (SRM) drive with energy storage buffer. First, the power circuits and control schemes of the two power stages are properly designed. Except for having good line drawn power quality, the boostable DC-link voltage of the SRM drive can enhance the SRM driving performance in wide speed range. And the recovered regenerative braking energy can be sent back to the grid successfully. Then, a battery storage system [...]

1914 9973

Open Access Original Research

Zinc Silicate Thin Film Composites Obtained by a Sputtering Based Approach: Structural, Dielectric and Photovoltaic Properties

Received: 19 January 2021;  Published: 02 April 2021;  doi: 10.21926/jept.2102015

Abstract

This study deals with the production of zinc silicate thin films employing a solid-state reaction at temperatures ranging from 300 °C to 560 °C, to develop new inorganic, n-type materials with seemingly incompatible properties as low work function, high mobility, and high visible transmittance. Depending on a careful reaction control, zinc silicates can preserve reagents (silicon and/or ZnO) as nanoaggregate guests, exhibiting tunable light absorption and emission properties that make them useful for differ [...]

2537 12768

Open Access Original Research

Nowcasting Wind, Wave, Current and Turbulence Intensity for Offshore Wind Power Operation and Maintenance

Received: 21 December 2020;  Published: 24 March 2021;  doi: 10.21926/jept.2101014

Abstract

In order to improve offshore wind power operation and maintenance (O&M), particularly during tropical and non-tropical cyclones, short-term forecasts or nowcasts up to 6 hours of meteorological and oceanographic (met-ocean) parameters including wind, waves, currents and turbulence intensity are needed. On the basis of numerous air-sea and wind-wave interaction experiments, datasets are analyzed including those from simultaneous measurements of wind and waves during Hurricane Wilma. Formulas are presented for nowcas [...]

5804 37018

Open Access Original Research

Crustal Reservoir Flow Simulation for Long-Range Spatially-Correlated Random Poroperm Media

Received: 30 November 2020;  Published: 19 March 2021;  doi: 10.21926/jept.2101013

Abstract

In interest of accurately modelling wellbore production in convective geothermal systems, we draw attention to two approaches to numerical simulation of crustal fluid flow. The historical "strong" approach simulates the fluid mass conservation condition on a localised finite difference mesh approximation to poroelastic continua. The more flexible "weak" approach globally enforces fluid mass conservation by in effect integrating over all numerical mesh cells. Strong formulation crustal flow simulation emerged from n [...]

2034 9788

Open Access Original Research

Multi-Disciplinary and Multi-Scale Assessment of Marine Renewable Energy Structure in a Tidal System

Received: 08 October 2020;  Published: 17 March 2021;  doi: 10.21926/jept.2101012

Abstract

The French coast of the Atlantic and English Channel (EC) is promising for the development of Marine Renewable Energy (MRE), including wind, wave, and tidal stream, due to the high velocity of currents in some parts of the area. This paper, focusing on wind and tidal energy, discusses how the implementation of MRE converters influences biodiversity, and vice versa, through biofouling and reef effects. The understanding of these interactions requires the knowledge of the hydro-sedimentary conditions and the macrofau [...]

2046 10538

Open Access Review

Accelerated Controller Tuning for Wind Turbines Under Multiple Hazards

Received: 26 December 2020;  Published: 04 March 2021;  doi: 10.21926/jept.2101011

Abstract

During their lifecycle, wind turbines can be subjected to multiple hazard loads, such as high-intensity wind, earthquake, wave, and mechanical unbalance. Excessive vibrations, due to these loads, can have detrimental effects on energy production, structural lifecycle, and the initial cost of wind turbines. Vibration control by various means, such as passive, active, and semi-active control systems provide crucial solutions to these issues. We developed a novel control theory that enables semi-active controller tuni [...]

2361 11709

Open Access Original Research

High Energy Density Rechargeable Aqueous Lithium Batteries with an Aqueous Hydroquinone Sulfonic Acid and Benzoquinone Sulfonic Acid Redox Couple Cathode

Received: 12 January 2021;  Published: 24 February 2021;  doi: 10.21926/jept.2101010

Abstract

The demand for high energy density rechargeable batteries beyond lithium-ion batteries has increased for electric vehicles. In the present study, a novel high energy density rechargeable aqueous lithium battery was proposed. The battery was composed of a lithium metal anode, a lithium-stable non-aqueous electrolyte, a water-stable lithium-ion conducting solid electrolyte of Li1.4Al0.4Ge0.2Ti1.4(PO4)3-epoxy-TiO2 separator, and a hydroquinone sulfonic acid (HQS)/benzoquinone sulfonic acid (BQS) redox couple in an aqu [...]

2756 14278

Open Access Original Research

Melting/Solidification Processes of PEG 1500 in Vertical and Horizontal Annular Enclosure

Received: 01 December 2020;  Published: 31 January 2021;  doi: 10.21926/jept.2101009

Abstract

In this paper, the primary aim is to look at the fundamental melting/solidification processes of polyethylene glycol 1500 (PEG 1500) for energy storage - insulation to prolong the cooling time of pipelines in unexpected shut-down conditions, prevent/minimize the wax deposition, and hydrate formation. Polyethylene glycol 1500 was selected because its melting temperature is >317 K making it a suitable candidate as lagging material to prevent wax deposition and hydrate formation in subsea oil pipelines. Experim [...]

2293 12233

Open Access Original Research

Modeling of Ceria Reduction in a Solar Thermochemical Reactor via DEM Method

Received: 09 November 2020;  Published: 30 January 2021;  doi: 10.21926/jept.2101008

Abstract

Solar thermochemical reactor provides an attractive approach that utilizes the most common solar radiation as the thermal driving force to motivate the reaction between CO2 and metal oxides, which is also called metal oxide redox pair-based thermochemical cycles. The CeO2/CeO2-δ is widely used in the two-step redox process due to its advantages including fast-redox kinetics, high crystallographic stability of a wide range of reacting oxygen non-stoichiometry, and relatively high oxygen solid-state conductivit [...]

2427 13954

Open Access Review

Ni-Silica-based Catalysts for CH4 Reforming by CO2 with Enhanced Stability: Recent Designs and the Impacts of Ni Confinement, Promoters, and Core-Shell Structures

Received: 01 September 2020;  Published: 26 January 2021;  doi: 10.21926/jept.2101007

Abstract

CO2 reforming of CH4, also referred to as the Dry Reforming of Methane (DRM), is considered an excellent method to produce H2 and CO (syngas), which are known to be used for the production of higher alkanes and oxygenates. Despite nickel’s moderate toxicity, Ni-based heterogeneous catalysts are considered excellent candidates for use in DRM due to their reasonable performances and economic advantages. However, these materials also present severe drawbacks, such as sintering of the active phase and coke (carbo [...]

3703 17783

Open Access Original Research

Quaternary Hydrides Pd1-y-zAgyCuzHx Embedded Atom Method Potentials for Hydrogen Energy Applications

Received: 10 November 2020;  Published: 25 January 2021;  doi: 10.21926/jept.2101006

Abstract

The Pd-H system has attracted extensive attention. Pd can absorb considerable amount of H at room temperature, this ability is reversible, so it is suitable for multiple energy applications. Pd-Ag alloys possess higher H permeability, solubility and narrower miscibility gap with better mechanical properties than pure Pd, but sulfur poisoning remains an issue. Pd-Cu alloys have excellent resistance to sulfur and carbon monoxide poisoning and hydrogen embrittlement, good mechanical properties, and broader temperature [...]

2328 13515

Open Access Technical Note

Spatio-Temporal Metocean Measurements for Offshore Wind Power

Received: 24 November 2020;  Published: 22 January 2021;  doi: 10.21926/jept.2101005

Abstract

This paper presents the case for the use of HF radar to provide wave, current and wind measurements and maps during the surveying, resource and impact assessment, construction, maintenance and performance assessment phases of an offshore fixed or floating wind farm or other marine renewable project. The data presented are from the Celtic Sea which is currently the focus of a lot of offshore wind interest. The data are from a dual radar system deployed at the Wave Hub site off the Cornwall coast since 2011, a single [...]

2531 14987

Open Access Project Report

SOFC Stack and System Modeling, Fault Diagnosis and Control

Received: 31 July 2020;  Published: 18 January 2021;  doi: 10.21926/jept.2101004

Abstract

This report is an account of research and development activities undertaken by the Centre for Process Systems Computations, Department of Chemical Engineering at Curtin University, Western Australia in the area of solid oxide fuel cells. The focus of work of the group included 1)effect of cell macrostructure and microstructure on electrochemical performance with a view to optimise both macro- and micro-structure 2) electrochemistry modeling for simulating electrochemical performance 3) internal reforming aspects im [...]

3532 19049

Open Access Original Research

Online State of Charge Prediction in Next Generation Vehicle Batteries Using Deep Recurrent Neural Networks and Continuous Model Size Control

Received: 31 July 2020;  Published: 12 January 2021;  doi: 10.21926/jept.2101003

Abstract

This investigation presents a data-driven Long-short Term Memory battery model for predicting State of Charge for lithium-ion batteries LiFePO4 for next-generation vehicle operations. Our modified algorithm builds and updates a model using multivariate inputs that include physical properties, voltage, current, and ambient temperature during operations. The primary research goal is to improve prediction performance on future values from multiple training examples using an online learning scheme. Initial results demo [...]

2295 11970

Open Access Editorial

Acknowlegement to Reviewers of Journal of Energy and Power Technology in 2020

Received: 07 January 2021;  Published: 07 January 2021;  doi: 10.21926/jept.2101002

Abstract

The editors of Journal of Energy and Power Technology would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2020. We greatly appreciate the contribution of expert reviewers, which is crucial to the journal's editorial process. We aim to recognize reviewer contributions through several mechanisms, of which the annual publication of reviewer names is one. Reviewers receive a voucher entitling them to a discount on their next LIDSEN publication and can download a cer [...]

1286 5851

Open Access Original Research

Assessment of Cu(In, Ga)Se2 Solar Cells Degradation due to Water Ingress Effect on The CdS Buffer Layer

Received: 28 October 2020;  Published: 06 January 2021;  doi: 10.21926/jept.2101001

Abstract

The effect of water ingress on the surface of the buffer layer of a Cu(In, Ga)Se2 (CIGS) solar cell was studied. Such degradation can occur either during the fabrication process, if it involves a chemical bath as is often the case for CdS, or while the modules are in the field and encapsulants degrade. To simulate the impact of this moisture ingress, devices with a structure sodalime glass/Mo/CIGS/CdS were immersed in deionized water. The thin films were then analyzed both pre and post water soaking. Dynamic second [...]

2475 1635197

Open Access Review

Solar Thermal Energy Stills for Desalination: A Review of Designs, Operational Parameters and Material Advances

Received: 28 September 2020;  Published: 29 December 2020;  doi: 10.21926/jept.2004018

Abstract

The demand for high-quality freshwater is increasing due to global population growth, intensifying agricultural practices and expanding industrial development. Additionally, many global regions have low levels of rainfall which makes them arid and incapable of supporting large human populations or agriculture. Currently, large quantities of fossil fuels are used to generate the power needed to drive energy intensive desalination processes that deliver high-quality freshwater to many of these regions. However, the u [...]

2813 32207

Open Access Research Article

Further Understanding of Uncertainties in the Impedance Spectrum of the Polymer Electrolyte Fuel Cell due to Inductive Effects and Oxygen Diffusion Time Constant

Received: 31 July 2020;  Published: 24 November 2020;  doi: 10.21926/jept.2004017

Abstract

In this study, uncertainties during the assessment of the electrochemical impedance spectrum of the polymer electrolyte fuel cell (PEFC) attributed to inductive artefacts at high frequencies and inductive loops at low frequencies as well as oxygen diffusion time constant are discussed. A validated impedance model represented as an equivalent electrical circuit of a PEFC allowed the simulation of the effect of inductive artefacts, inductive loops and oxygen diffusion time constant on electrochemical impedance spectr [...]

3198 13841

Open Access Review

Research Requirements to Move the Bar forward Using Aqueous Formate Salts as H2 Carriers for Energy Storage Applications

Received: 01 September 2020;  Published: 23 November 2020;  doi: 10.21926/jept.2004016

Abstract

In this perspective on hydrogen carriers, we focus on the needs for the development of robust active catalysts for the release of H2 from aqueous formate solutions, which are non-flammable, non-toxic, thermally stable, and readily available at large scales at reasonable cost. Formate salts can be stockpiled in the solid state or dissolved in water for long term storage and transport using existing infrastructure. Furthermore, formate salts are readily regenerated at moderate pressures using the same catalyst as for [...]

2464 13297

Open Access Research Article

Testing the Correlation between Prior Knowledge of - and Visualisation Guided WTPs for Reducing the Visual Impacts Visual from Offshore Wind Farms

Received: 28 April 2020;  Published: 12 August 2020;  doi: 10.21926/jept.2003015

Abstract

Visual external costs are significant elements in the cost-benefit analysis of wind farm locations. This has been demonstrated well in the literature. However, in the assessment of the visual costs, a large share of the earlier studies used no or only simplistic visualizations of the visual impacts at stake. The cost estimates thus rely on the respondents’ ability to imagine the visual impacts associated with wind turbines of different sizes and at different locations. This has been argued to potentially reduce the [...]

2146 9744

Open Access Research Article

Grid Integration of a Residential PV-based Hybrid Renewable Energy System Using High-Frequency Multi-winding Transformer

Received: 13 June 2020;  Published: 05 August 2020;  doi: 10.21926/jept.2003014

Abstract

In this paper, a topology of a residential hybrid renewable energy system based on a high-frequency multi-winding transformer is introduced and analyzed. The system includes a PV and a wind-turbine as renewable energy sources, a battery as energy storage and their energies are integrated through a high-frequency transformer. In fact, the transformer integrates the energies in a magnetic form and also isolates the system inputs and outputs. The integrated output from renewables and battery is a DC high-voltage and i [...]

2208 11579

Open Access Research Article

Sustainability Implications of Using Hydrogen as an Automotive Fuel in Western Australia

Received: 29 June 2020;  Published: 31 July 2020;  doi: 10.21926/jept.2003013

Abstract

Hydrogen is regarded as a potential solution to address future energy demands and environmental protection challenges. This study assesses the triple bottom line (TBL) sustainability performance of hydrogen as an automotive fuel for Western Australia (WA) using a life cycle approach. Hydrogen is considered to be produced through water electrolysis. Two scenarios, current grid electricity and future renewable-based hydrogen, were compared with gasoline as a base case. The results show that locally produced grid elec [...]

2303 12335

Open Access Research Article

Seismic Imaging of Convective Geothermal Flow Systems to Increase Well Productivity

Received: 03 December 2019;  Published: 29 July 2020;  doi: 10.21926/jept.2003012

Abstract

A core feature of convective geothermal resource production is wellbore energy flow Q ~ ρC x T x V. E.g., for wellbore fluid of volume heat capacity ρC ~ 4.3MJ/m3.oC, temperature T ~ 230oC, and volumetric flow V ~ 50L/s, wellbore heat energy production is Q~ 50MWth ~ 5MWe. Wellbore fluid flow V =2πr0ϕv0ℓ for open wellbore length ℓ is given in turn by the spatially variable product crustal porosity times crustal fluid velocity v ≡ ϕv0 at the wellbore rad [...]

2328 14310

Open Access Original Research

A Simplified Optimization Model for Sizing Proton-Exchange Membrane Fuel Cells

Received: 03 June 2020;  Published: 24 July 2020;  doi: 10.21926/jept.2003011

Abstract

The fluctuations in the cost of energy coupled with the gradual decrease in natural resources (i.e., oil, natural gas, coal) and the environmental issues caused by the extensive use of fossil fuels, demand the urgent need for the development of advanced and clean energy systems. The European Union has requested new measures to target climate and energy deterioration by developing renewable energy sources by 2030. The stochastic character of the energy sources and the fluctuation in demand for the energy systems pos [...]

2279 12175

Open Access Original Research

Computational Micromechanics for the Optimization of Compression Strength of Unidirectional Carbon Fiber Composites for Use in Wind Turbine Blades

Received: 15 April 2020;  Published: 09 June 2020;  doi: 10.21926/jept.2002010

Abstract

As wind turbine blades grow longer, new design parameters gain additional importance such as blade weight, tip deflection and material cost. These parameters require designers to relook at carbon fiber as a potential design solution. However, the composite materials in wind turbine blades are subjected to significant compressive loading, and the compressive strength of carbon fiber reinforced polymer (CFRP) composites is much lower than its tensile strength. This reduction in compression strength is due to a change [...]

1983 10664

Open Access Review

Using Additives to Control the Decomposition Temperature of Sodium Borohydride

Received: 20 April 2020;  Published: 19 May 2020;  doi: 10.21926/jept.2002009

Abstract

Hydrogen (H2) shows great promise as zero-carbon emission fuel, but there are several challenges to overcome in regards to storage and transportation to make it a more universal energy solution. Gaseous hydrogen requires high pressures and large volume tanks while storage of liquid hydrogen requires cryogenic temperatures; neither option is ideal due to cost and the hazards involved. Storage in the solid state presents an attractive alternative, and can meet the U.S. Department of Energy (DOE) constraints to find m [...]

5103 21868

Open Access Original Research

The Impact of Operating Conditions on the Performance of a CH4 Dry Reforming Membrane Reactor for H2 Production

Received: 25 March 2020;  Published: 14 May 2020;  doi: 10.21926/jept.2002008

Abstract

Biogas is a promising resource for the production of H2 since it liberates energy by recycling waste, along with the reduction of CO2. In this paper, the biogas dry reforming membrane reactor is proposed to produce H2 for use in fuel cells. Pd/Cu alloy membrane is used to enhance the performance of the biogas dry reforming reactor. This study aims at understanding the effect of operating parameters such as feed ratio of sweep gas, pressure in the reactor, and reaction temperature on the performance of the biogas dr [...]

2106 12030

Open Access Original Research

Hierarchically-Structured Ti/TiO2 Electrode for Hydrogen Evolution Synthesized via 3D Printing and Anodization

Received: 09 April 2020;  Published: 09 May 2020;  doi: 10.21926/jept.2002007

Abstract

Hierarchically-structured, electro-catalysts consisting of a titanium core with controlled macro-porosity and a thin titania surface-layer with controlled nano-porosity were synthesized via combination of additive manufacturing and in-situ anodization. The electrodes were tested for hydrogen evolution reaction and depicted competitive electro-catalytic activities, with Tafel slopes between 40 and 56 mV dec-1. The electrodes also depicted competitive onset and over potentials when compared with other electrode alter [...]

2119 13725

Open Access Original Research

Assessment of Stability-Based Characterizations of North Carolina’s Offshore Wind Resource Using a Nested Boundary Layer Method

Received: 10 April 2020;  Published: 30 April 2020;  doi: 10.21926/jept.2002006

Abstract

SODAR wind profiler measurements from a land-based site within 1000 m of the coastal ocean are compared with predicted wind profiles based on upwind conditions and a stability-based model. The thermally dynamic influence of the Gulf Stream near the site of measurement, Cape Hatteras, has been found to complicate wind speed estimation at height through its impacts on atmospheric stability and the resulting changes to wind shear. The COARE 3.0 algorithm was used to calculate a Monin-Obukhov Similarity Theory (MOST) s [...]

2005 11006

Open Access Original Research

Storable Energy Production from Wind over Water

Received: 28 January 2020;  Published: 29 April 2020;  doi: 10.21926/jept.2002005

Abstract

The current status of a project is described which aims to demonstrate the technical and economic feasibility of converting the vast wind energy available over the globe’s oceans and lakes into storable energy. To this end, autonomous high-performance sailing ships are equipped with hydrokinetic turbines whose output is stored either in electric batteries or is fed into electrolysers to produce hydrogen which then is compressed and stored in tanks. In the present paper, the previous analytical studies which showed [...]

2200 11487

Open Access Original Research

Autonomous Hydrogen Production for Proton Exchange Membrane Fuel Cells PEMFC

Received: 04 March 2020;  Published: 28 April 2020;  doi: 10.21926/jept.2002004

Abstract

This paper focuses on hydrogen production for green mobility applications (other applications are currently under investigation). Firstly, a brief state of the art of hydrogen generation by hydrolysis with magnesium is shown. The hydrolysis performance of Magnesium powder ball–milled along with different additives (graphite and transition metals TM = Ni, Fe, and Al) is taken for comparison. The best performance was observed with Mg–10 wt.% g mixtures (95% of theoretical hydrogen generation yield in about 3 min). An [...]

2869 17792

Open Access Original Research

Water Photo-Oxidation Reaction on Clean and Doped Two-Dimensional Graphitic C2N

Received: 16 February 2020;  Published: 20 April 2020;  doi: 10.21926/jept.2002003

Abstract

In the search for new efficient photo-catalysts for hydrogen production through water splitting, the main attention has been paid to tuning the band gap width and its position with respect to vacuum level. However, actual electro-catalytic activity for the water oxidation reaction on a catalyst surface is no less important than those quantities. In this work we evaluate from first principles the thermodynamics of the reaction on relatively new candidates for water splitting: two-dimensional C2N and that doped with [...]

2101 10408

Open Access Original Research

Zero-Emission Geothermal Power Generation: Experimental Study on Carbonate Mineralization through CO2-Andesitic Pyroclastic Rock Interaction at Oku-Aizu Geothermal Plant

Received: 27 November 2019;  Published: 12 February 2020;  doi: 10.21926/jept.2001002

Abstract

In order to achieve advancement in zero-emission geothermal power generation for fixing the CO2 in the geothermal fluids to the carbonate minerals after binary power generation and reinjection of the fluid into the reservoir, batch-type experiments and geochemical simulations of CO2-andesitic pyroclastic rock interaction (tuff from Oku-Aizu geothermal area) were performed at 150 °C with and without CO2 gas for 15 days. Despite the low Ca content (0.9% wt.%) in the rock, the Ca2+ concentrations in the solutions [...]

5219 17019

Open Access Opinion

Electricity without Fuel

Received: 30 September 2019;  Published: 06 January 2020;  doi: 10.21926/jept.2001001

Abstract

Most power plants produce electricity by converting a mechanical motion into alternating current (AC). Photovoltaic solar panels convert an electromagnetic flux of light into direct current (DC). In general, electric energy can be harvested from a flux in the environment or from a change of the environment itself. One can produce electricity from mechanical, chemical, thermal, electromagnetic (light), or another physical flux, or from a change of temperature, chemical composition, or a physical field: gravitationa [...]

2694 32488

Open Access Original Research

Experimental Vapor-Pressures and Derived Thermodynamic Properties of Geothermal Fluids from Baden-Baden Geothermal Field (Southeastern Germany)

Received: 24 September 2019;  Published: 24 December 2019;  doi: 10.21926/jept.1904006

Abstract

Background: In the present study, vapor-pressures of three geothermal fluids from Baden-Baden geothermal field (Kirchenstollen, Friedrichstollen, and Murquelle, southeastern region of Germany) were measured over the temperature range of 274-413 K. The combined expanded uncertainty of the temperature and vapor-pressure measurements at 95% confidence level with a coverage factor of k = 2 were estimated to be 0.01 K and 1-3 Pa at low and 10-30 Pa at high temperatures, respectively. The measured values of vapor-pressur [...]

2475 13462

Open Access Research Article

Public Familiarity with Geothermal Energy on the North American West Coast

Received: 18 November 2019;  Published: 24 December 2019;  doi: 10.21926/jept.1904005

Abstract

The 2013 Pacific Coast Action Plan on Climate and Energy signed by the Governors of Oregon, California, and Washington and the Premier of British Columbia, launched a broadly announced public commitment to reduce greenhouse gas emissions through multiple strategies. Those strategies include the development and increased use of renewable energy sources. The initiative recognized that citizens are both a central component to abating greenhouse gas emissions with regard to their energy use behaviors, and are important [...]

2076 1699025

Open Access Review

Scientometric Analysis of Scheduling in Renewable Energy: A Keyword and Citation Analysis

Received: 21 May 2019;  Published: 15 November 2019;  doi: 10.21926/jept.1904004

Abstract

The aim of this paper is the scientometric analysis of articles on “scheduling in renewable energy” that have been published between 2000 and 2017. For this purpose, the terms “scheduling in renewable energy” and “unit commitment in renewable energy” have been searched. We have found 1009 articles in the Scopus database which include the terms mentioned above. VOSviewer and CiteSpace, as two well-known the scientometric analysis tools, have been used. Keywords analysis and citation analysis are two analysis methods [...]

2082 12354

Open Access Original Research

The Viterbo Hydrothermal System and Its Sustainable Exploitation, Central Italy

Received: 14 May 2019;  Published: 05 September 2019;  doi: 10.21926/jept.1903003

Abstract

Background: The Regione Lazio-Direzione Regionale dello Sviluppo Economico e delle Attività Produttive (RL–DRSEAP), carrying out its public functions to govern the use of mineral resources (including thermal water), planned the exploitation of the Viterbo hydrothermal system on the basis of a conceptual hydrogeological model (CHM). The CHMs of the Viterbo area and that of the neighboring Tuscany region, characterized by the same geological and hydrogeological setting, are discussed, suggesting the unreliability of [...]

2486 23468

Open Access Original Research

Sustainability Assessment of Power Generation from an Abandoned Oil and Gas Well in Alberta, Canada

Received: 30 May 2019;  Published: 07 August 2019;  doi: 10.21926/jept.1903002

Abstract

The main objective of this paper is to study the sustainability of power generation from an abandoned oil and gas well in the province of Alberta, Canada. Economic and environmental indicators were used for the sustainability assessment. A conceptual design for a pilot plant was developed, and the main parameters were determined. An abandoned oil and gas well represents the thermal power source through circulating water into an organic Rankine cycle (ORC) unit to generate electricity. The thermal power is extracted [...]

2357 14595

Open Access Original Research

A Techno-Economic Feasibility Analysis for the Production of Solar Photovoltaic Modules in Sudan

Received: 23 May 2019;  Published: 23 July 2019;  doi: 10.21926/jept.1903001

Abstract

This paper is intended to evaluate the economic viability of producing solar photovoltaic modules in Sudan. The simple payback period and the net present value were used as economic indicators to study comparatively different annual production capacities. Initial and operating costs were developed and analyzed for the product lifecycle. The number of working shifts in the base case is doubled to achieve a production rate of 20 MW/year and double shift with double quantity of machines is executed to reach a producti [...]

2309 15809

Open Access Review

Biomarkers in Biofield Therapies: Analysis of Measurable Effects

Received: 02 April 2026;  Published: 24 June 2026;  doi: 10.21926/obm.icm.2602022

Abstract

Biofield Therapies (BTs), such as Reiki and Healing Touch, are used in integrative and complementary medicine, but their biological mechanisms remain poorly understood. This review aimed to explore the physiological biomarkers modulated by BTs in a selected sample of studies to identify common patterns and elucidate potential mechanisms of action. A focused narrative synthesis of 14 intentionally selected studies was performed, encompassing various BT modalities, study designs (including randomized clinical trials, [...]

179 838

Open Access Review

Efficacy of Biofield Therapies in Alleviating Pain and Reducing Symptoms Associated with Mental Disorders: A Systematic Review and Meta-Analysis

Received: 23 March 2026;  Published: 02 June 2026;  doi: 10.21926/obm.icm.2602021

Abstract

Biofield therapies (BTs) including Reiki, Therapeutic Touch (TT), Healing Touch (HT), and External Qigong Treatment (EQT) are non-pharmacological interventions proposed to modulate putative energy fields surrounding the human body. Despite growing clinical interest, the evidence base remains methodologically heterogeneous. This study aimed to provide a rigorous synthesis of randomized controlled trial (RCT) evidence on the efficacy of BTs for pain reduction and for the alleviation of symptoms associated with mental [...]

447 2465

Open Access Research Article

A Compassionate Mind: A Qualitative Evaluation of Compassion Focused Group Therapy for Complex Interpersonal Trauma

Received: 11 October 2025;  Published: 28 May 2026;  doi: 10.21926/obm.icm.2602020

Abstract

A significant percentage of the population attending local adult psychology services have experienced variable forms of maltreatment from a young age and by a close attachment figure. For those who do not present with post-traumatic stress disorder symptoms, they may be misunderstood and offered a phase-based approach to their care. Although a stepped care approach to complex trauma is in keeping with current guidelines this often includes lengthy periods of group-based psychoeducation and skills development that o [...]

367 1242

Open Access Original Research

Safety and Genoprotective Effects of an 8-Herb Tea–ESSIAC Versus Mate Cocido, An Ilex paraguariensis Infusion

Received: 17 December 2025;  Published: 21 May 2026;  doi: 10.21926/obm.icm.2602019

Abstract

ESSIAC tea is a traditional multi-herb infusion or decoction widely used by cancer patients as a complementary therapy. Originally employed in traditional Ojibwa medicine, it was later reformulated by a Canadian nurse. The classic ESSIAC infusion contains four main botanicals: burdock root (Arctium lappa), Turkish rhubarb root (Rheum palmatum), sheep sorrel (Rumex acetosella), and slippery elm bark (Ulmus rubra). Commercial variations (e.g., FlorEssence® and Genuine ESSIAC™) expand this list to include blessed this [...]

593 1972

Open Access Research Article

Positive Mental Health and Its Promotion: A Bicultural Perspective and Narrative Synthesis from Aotearoa New Zealand

Received: 20 November 2025;  Published: 18 May 2026;  doi: 10.21926/obm.icm.2602018

Abstract

Positive mental health frameworks in Aotearoa New Zealand have largely been shaped by Western individualist assumptions and have given limited attention to Indigenous and bicultural understandings of wellbeing. This article examines positive mental health and its promotion in Aotearoa New Zealand, through a bicultural lens grounded in Te Tiriti o Waitangi. It reports on two cross-cultural mental health searches and discusses several models of health from te Ao Māori (the Māori world). Based on the view that positiv [...]

514 1280

Open Access Original Research

Implementation of General Consent in Swiss Traditional Chinese Medicine Practices: A Cross-sectional Study

Received: 24 November 2025;  Published: 18 May 2026;  doi: 10.21926/obm.icm.2602017

Abstract

Traditional Chinese Medicine (TCM) is often applied in isolated TCM practices, making rigorous research and standardized real-world data collection challenging. The purpose of this study was to implement the general consent (GC) in TCM practices, investigate the issue and the acceptance rate of the GC, and the influencing demographic factors. GC forms were distributed to patients before appointments and collected during their first visits. Logistic regression analyses were performed to investigate demographic facto [...]

274 884

Open Access Original Research

“Cultivating the Conditions for Safeness”: An Exploration of Patient’s Experiences of a Compassion Focused Group Psychotherapy Program for People with a Diagnosis of Personality Disorder

Received: 11 October 2025;  Published: 12 May 2026;  doi: 10.21926/obm.icm.2602016

Abstract

Individuals who have early attachment trauma can be fearful and resistant to caring behaviour from others and for themselves. This is partly because stimulation of the caring motivational system ignites trauma attachment memory. As a consequence, these individuals are unable to access care-attachment systems, supported by neurobiological processes involving the vagus nerve, oxytocin, and the frontal cortex, for modulating threats and regulating interpersonal distress. This paper outlines a Compassion Focused Group [...]

712 2184

Open Access Concept Paper

Addressing Perinatal Mental Health and Suicide: Developing an Intervention to Disseminate Tools and Resources to Low Resource Populations

Received: 01 October 2025;  Published: 05 May 2026;  doi: 10.21926/obm.icm.2602015

Abstract

Perinatal mental health challenges are the number one complication of pregnancy and childbearing. Despite the growing need, substantial barriers to addressing perinatal mental health exist, including lack of infrastructure, policies, and workforce. Baby Talk, a free prenatal education program, sought to address this growing need through a brief intervention for those with a positive screening. Baby Talk partnered with a local suicide prevention program to develop a tool to enhance access to care and to support emot [...]

369 1114

Open Access Editorial

Athens 2026 – International Exchange of Professionals in Medicine: A Global Gala Technology Platform for Medical Sciences, Innovation, and Interdisciplinary Collaboration

Received: 19 April 2026;  Published: 20 April 2026;  doi: 10.21926/obm.icm.2602014

Abstract

The International Exchange of Professionals – Thematic Event in Medicine 2026, held in Athens, was a high-level interdisciplinary forum for clinical medicine, biomedical research, and translational innovation. Conducted at the Radisson Blu Park Hotel, the congress brought together more than 300 international experts from over 40 countries. It was organized under the auspices of the World High Technology Society in cooperation with BIT Group Global and the Shenzhen International Talent Exchange Center. The program i [...]

375 1552

Open Access Research Article

A Qualitative Exploration: Black Women Living with Depression

Received: 14 September 2025;  Published: 07 April 2026;  doi: 10.21926/obm.icm.2602013

Abstract

Studies show Black women exhibit distinct depression symptoms and treatment experiences compared to other groups, often facing underdiagnosis and inadequate care. Unfortunately, knowledge about Black women with depression has been underexplored. Therefore, the purpose of this study is to gain a better understanding of Black women’s experiences living with clinical depression. To address this objective, we conducted a survey among 28 Black women aged 18 years and older (mean age = 35) residing in the United States, [...]

568 1889

Open Access Original Research

Beyond the Feed: Academic, Emotional, and Social Consequences of Social Media Use Among College Students

Received: 22 October 2025;  Published: 30 March 2026;  doi: 10.21926/obm.icm.2601012

Abstract

In 2025, college students are reportedly more anxious and strained than any previous generation of young people, while they are also the first to have grown up entirely immersed in social media. This research explores social media use patterns and their relationship with academic, emotional, health-related and social well-being among college students. A total of 111 college students from an East Coast university self-selected to complete a one-time assessment anonymously through Qualtrics. A mixed-methods, explorat [...]

528 2206

Open Access Research Article

“Make Sure That Our Culture and Color is Known:” Maternal Perceptions of Using Media in the Ethnic-Racial Socialization of Young Black Children

Received: 10 October 2025;  Published: 13 March 2026;  doi: 10.21926/obm.icm.2601011

Abstract

Although methods of ethnic-racial socialization have been studied in the past, welcoming in a new digital age has affected how parents engage with their children on topics such as race and culture. While media can be an engaging way to expose young children to race and culture, the underrepresentation of Black youth in media in the United States has posed a dilemma for Black parents about the best way of using media to socialize their young children. To understand how Black mothers expose their children to ideas ab [...]

561 1998

Open Access Research Article

Embodied Rituals and Healing Practices in Turkish Health Culture: Implications for Contemporary Healthcare Environments

Received: 14 October 2025;  Published: 02 March 2026;  doi: 10.21926/obm.icm.2601010

Abstract

Throughout human history, movement has functioned not only as a physical activity but also as a ritual, considered a healing practice linked to meaning-making and social balance. Bodily performances and ritual-based practices—such as folk dances and mystical rituals—have historically supported the physical and emotional integrity of individuals. This paper examines the historical continuity of movement-based performative practices in Turkish health culture through religious and mystical rituals, folk dances, and mu [...]

659 2406

Open Access Original Research

Compassionate Mind Training for All: An Evaluation of a One-Day Compassionate Mind Training Workshop for Mental Health NHS Staff as Part of Compassion Focused Staff Support

Received: 13 October 2025;  Published: 13 February 2026;  doi: 10.21926/obm.icm.2601009

Abstract

It has become increasingly evident that individuals who work in the NHS can be heavily impacted by the nature of their work; for instance, PTSD, work related burnout, vicarious trauma, moral injury, anxiety, and depression. In turn, individuals who experience said psychological difficulties often require work-related mental health leave from work. This paper examines the experience of a One-day Compassionate Mind Training workshop (CMT), available for all NHS staff. This day has an emphasis on developing multidirec [...]

967 2921

Open Access Original Research

Chemical Composition, Antioxidant Properties, and Nutritional Value of Diospyros kaki L. as a Potential Functional Food

Received: 10 November 2025;  Published: 12 February 2026;  doi: 10.21926/obm.icm.2601008

Abstract

Persimmon (Diospyros kaki L.) is increasingly recognized as a nutrient-dense fruit rich in health-promoting compounds. This study aimed to comprehensively evaluate the nutritional composition, phenolic profile, antioxidant potential, and elemental content of D. kaki fruit and its contribution to dietary mineral intake. Proximate analysis revealed a high moisture content, low fat, and appreciable fiber and carbohydrate levels, supporting its classification as a low-calorie, fiber-rich food. Methanolic extracts exhib [...]

968 2675

Open Access Research Article

Transformational Spaces: An Interpretative Phenomenological Inquiry into the Lived Experience of Young People Visiting Kanha Shanti Vanam Meditation Center, Telangana, India

Received: 29 October 2025;  Published: 04 February 2026;  doi: 10.21926/obm.icm.2601007

Abstract

The innate desire to belong and to connect is profoundly human, yet in a world of instant communication, millions of young people increasingly feel untethered and adrift. Loneliness is the 21st century's primary health care concern across all age groups. Young people not only feel lonely and emotionally isolated, but they also describe a lack of meaningful connections and purpose. Young people lack safe spaces where they can connect with their peers, without fear of judgment, prejudice, and pressure to succeed. In [...]

791 2364

Open Access Concept Paper

Movement-informed Breathwork (MiB): Integrating Muscular Contractions with Slow Conscious Connected Breathing for Therapeutic Application

Received: 28 July 2025;  Published: 22 January 2026;  doi: 10.21926/obm.icm.2601006

Abstract

This paper introduces Movement-informed Breathwork (MiB), a personalised breath-body approach with biofeedback that integrates a form of conscious connected breathwork (breathing without pauses) with targeted neuromuscular contraction and relaxation cycles. Drawing from neuromuscular torque chain dynamics, fascial research and sensorimotor trauma therapy principles, MiB aims to enhance autonomic regulation, interoceptive awareness and somatic-emotional integration by bridging traditional breathwork (deep, slow-pace [...]

2512 6570

Open Access Original Research

An Exploration of the Experiences of Group Compassion Focused Therapy for Hospital Outpatients with Long-Term Mental Health Difficulties

Received: 07 April 2025;  Published: 12 January 2026;  doi: 10.21926/obm.icm.2601005

Abstract

There is now good evidence for the efficacy of Compassion Focused Therapy (CFT) for a variety of mental health difficulties. To deepen understanding of the processes underpinning CFT’s effectiveness, this service evaluation explored the experiences and reflections of individuals with long-term mental health difficulties who had previously received therapy and attended an 11-week CFT group. Ten clients were invited to the group; one withdrew before the group started because of work and personal commitments and anoth [...]

2657 5083

Open Access Original Research

iRest™ Meditation Webinar Series Addresses Depression Symptoms in Older Adults

Received: 09 August 2025;  Published: 07 January 2026;  doi: 10.21926/obm.icm.2601004

Abstract

Older adults in the U.S. have higher rates of depression, stress, and chronic diseases. There is an urgent need for effective interventions to reduce depressive symptoms and enhance overall health and well-being. Meditation presents an appealing therapeutic option due to its cost-effectiveness, minimal risks, ease of use, and active patient involvement, with growing evidence indicating its effectiveness in reducing depressive symptoms. Online platforms may provide more accessible options for meditation intervention [...]

945 3111

Open Access Editorial

Acupuncture’s Effects on Intracranial Pressure: From Early Observations to Modern Insights

Received: 04 January 2026;  Published: 06 January 2026;  doi: 10.21926/obm.icm.2601003

Abstract

Understanding whether acupuncture can influence intracranial pressure (ICP) and cerebral hemodynamics remains a relevant and insufficiently explored question in contemporary neurovascular research. This editorial synthesizes early experimental observations with recent clinical and technological advances to reassess the cerebral effects of acupuncture from a modern perspective. Evidence from clinical studies indicates that acupuncture can alter cerebral blood flow velocity and regional perfusion, suggesting an inter [...]

732 2264

Open Access Editorial

Acknowledgment to Reviewers of OBM Integrative and Complementary Medicine in 2025

Received: 04 January 2026;  Published: 04 January 2026;  doi: 10.21926/obm.icm.2601002

Abstract

The editors of OBM Integrative and Complementary Medicine would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2025. We greatly appreciate the contribution of expert reviewers, which is crucial to the journal's editorial process. We aim to recognize reviewer contributions through several mechanisms, of which the annual publication of reviewer names is one. Reviewers can download a certificate of recognition directly from our submission system. Additionally, reviewers [...]

649 1566

Open Access Original Research

A Frequency Analysis of the Professional Quality of Life of NeuroAffective Relational Model (NARM) Therapists after NARM Training

Received: 25 July 2025;  Published: 04 January 2026;  doi: 10.21926/obm.icm.2601001

Abstract

Research shows that trauma therapists often experience secondary trauma, which can lead to secondary traumatic stress, compassion fatigue, and burnout. Trauma-informed care training has shown promise in enhancing practitioners' professional quality of life, particularly for those regularly exposed to trauma. To our knowledge, no prior studies have examined the training outcomes of NeuroAffective Relational Model (NARM) therapists on professional quality-of-life indicators. This cross-sectional observational study a [...]

890 3295

Open Access Original Research

Use of Complementary and Integrative Medicine Among Cancer Survivors in Exercise Rehabilitation: A Cross-sectional Analysis

Received: 18 September 2025;  Published: 12 December 2025;  doi: 10.21926/obm.icm.2504054

Abstract

Complementary and integrative medicine (CIM) is commonly used by cancer survivors; however, patterns of use among individuals engaged in structured exercise rehabilitation remain understudied. This cross-sectional survey examined CIM use among 157 cancer survivors enrolled in a structured exercise-based rehabilitation program. CIM modality use (dependent variable) was grouped into herbal supplements, mind-body practices, and manipulative and body-based categories and analyzed with demographic and clinical character [...]

833 2386

Open Access Editorial

Acupuncture in Gynecology and Assisted Reproduction – A Short Evidence-Based Review

Received: 08 December 2025;  Published: 09 December 2025;  doi: 10.21926/obm.icm.2504053

Abstract

Acupuncture has become an increasingly relevant complementary modality in modern gynecology and assisted reproduction. Its uses include the management of menstrual disorders, menopausal symptoms, infertility, polycystic ovary syndrome (PCOS), endometriosis, and others. Scientific progress in neurophysiology, laser acupuncture, and biomedical imaging has enabled a deeper understanding of the central and peripheral mechanisms underlying acupuncture’s effects. This editorial summarizes current evidence regarding physi [...]

1872 6283

Open Access Original Research

The Value of Camellia sinensis in the Management of Toxicity Induced by Cancer Treatments

Received: 17 June 2025;  Published: 02 December 2025;  doi: 10.21926/obm.icm.2504052

Abstract

While radiotherapy is one of the main treatments for head and neck cancer, adverse effects limit its effectiveness and affect patients' quality of life. Although various radioprotective substances have been proposed, comprehensive strategies are needed to modulate radiotoxicity. In this regard, compounds from green tea (Camellia sinensis), with antioxidant, anti-inflammatory, and antiproliferative properties, could be suitable for optimizing the radiotherapy relationship. A descriptive, prospective study was conduc [...]

647 2293

Open Access Original Research

Effects of Trauma, Shame, and Self-Criticism on Hoarding: Comparative Data and Treatment Implications

Received: 31 January 2025;  Published: 01 December 2025;  doi: 10.21926/obm.icm.2504051

Abstract

Severe trauma has a significant impact on self-attitudes and emotions, such as self-criticism and shame, and psychological symptoms. This topic has been more well studied among populations with Trauma and Stress-Related Disorders, but examined to a lesser extent in other clinical populations where adverse life events and potentially traumatic events are highly prevalent, such as Hoarding Disorder. The current study examined trauma exposure, and the relationships between trauma, self-criticism, shame, and symptom se [...]

1157 3641

Open Access Perspective

From Vision to Strategy: Expanding Metaversal Integrative Healthcare with DAOs and Blockchain Ecosystems

Received: 26 May 2025;  Published: 26 November 2025;  doi: 10.21926/obm.icm.2504050

Abstract

Legacy, profit-driven organizational structures often lack the adaptability, equity, and innovation required for the evolving complexities of contemporary patient-centered care. They can limit access, constrain options, impose financial burdens, and hinder optimized delivery. Here, we propose a new architecture for metaversal integrative healthcare using decentralized autonomous organizations (DAOs). Blockchain technology and smart contracts underpin equitable, transparent, and resilient health ecosystems beyond in [...]

776 3631

Open Access Editorial

And the ICMART Science Award 2025, Presented at the World Congress on Medical Acupuncture, Goes to…

Received: 10 November 2025;  Published: 10 November 2025;  doi: 10.21926/obm.icm.2504049

Abstract

During this year’s World Congress on Medical Acupuncture, the ICMART (International Council of Medical Acupuncture and Related Techniques) Science Award 2025 was presented in recognition of excellence in research and innovation within the field of medical acupuncture. The award honored pioneering work on acupuncture and moxibustion in chronic fatigue syndrome (CFS), conducted in collaboration with the team at Hubei University of Chinese Medicine, Wuhan. The study, a randomized controlled trial (RCT), showed that ac [...]

989 4731

Open Access Research Article

The Nociceptive Glio-Neural Complex as a Histoanatomical Substrate of Acupuncture Meridians?

Received: 11 November 2024;  Published: 09 November 2025;  doi: 10.21926/obm.icm.2504048

Abstract

Morphological evidence of peripheral glial cell involvement is lacking. Therefore, we investigated the presence of Schwann cells in acupuncture meridians. Eight legs of four unembalmed cadavers were used. Along the stomach meridian and a control meridian, quadrangular samples were taken from skin to the deep subcutaneous fascia and embedded in paraffin. 5 µm sections were stained for H&E and processed for immunolabeling using antibodies against S100 and NFP, respectively. In the stomach meridian, a large assembly o [...]

747 2604

Open Access Review

Healthy Ageing and its Communal Nemesis Social Frailty

Received: 11 June 2025;  Published: 29 October 2025;  doi: 10.21926/obm.icm.2504047

Abstract

Across the globe, countries are facing an ageing boom, with the proportion of the older adult population growing compared to younger age groups because of increased life expectancy and declining birth rates. Along with the ageing boom, there is increased interest in the wellbeing of older adults. Healthy ageing and social frailty are two constructs that have emerged in studying older adults and their quality of life. In this paper, we critically review salient literature defining and describing healthy ageing and s [...]

983 3862

Open Access Original Research

Investigating Associations between Maternal Mindfulness, Mental Health, Interoception and Mother-Infant Relationship during Pregnancy and Post-Partum in a Non-Clinical Community Sample

Received: 21 May 2025;  Published: 26 October 2025;  doi: 10.21926/obm.icm.2504046

Abstract

Pregnancy and the postpartum period are times of significant transition for women, with changes in maternal physical and mental health. The relationship between a mother and her infant has been recognised as laying the foundation for later child development. There is considerable evidence that this early relationship is influenced by a woman’s wellbeing during pregnancy and in the early post-partum period. Mindfulness has been found to have positive health outcomes, primarily in reducing maternal stress, anxiety, a [...]

1138 4335

Open Access Original Research

Cultural Distance, Host Acculturation Orientation, and Psychological Adaptation among African International Students at Portuguese Universities

Received: 10 July 2025;  Published: 24 October 2025;  doi: 10.21926/obm.icm.2504045

Abstract

International students represent a significant sojourner group. Increasing international student numbers makes it ever more relevant to understand the determinants of their psychological adaptation. This research investigates the question of how perceived cultural distance (PCD) impacts acculturation variables (social contact with host nationals and host national identity) and outcomes such as saudade and life satisfaction among African international students. The sample comprised 422 college students (195 from Ang [...]

719 3200

Open Access Editorial

Life Sciences Worldwide – Global Perspectives and Networking for International Professionals1

Received: 15 October 2025;  Published: 16 October 2025;  doi: 10.21926/obm.icm.2504044

Abstract

The International Exchange of Professionals – Thematic Event in Life Science, held on October 15-17, 2025, in Nice, France, inaugurated a global congress series focused on frontier topics in biomedical sciences. This editorial summarizes the first day of the event, including the opening ceremony, keynote forum, and welcome banquet. With more than 150 participants from over 35 countries, the event created a platform for cross-disciplinary exchange and collaboration. Key themes included translational medicine, neurom [...]

991 3254

Open Access Editorial

Transcutaneous Auricular Vagus Nerve Stimulation (taVNS): Precise Integration Between Neuroscience and Integrative Medicine

Received: 10 September 2025;  Published: 10 October 2025;  doi: 10.21926/obm.icm.2504043

Abstract

Transcutaneous auricular vagal nerve stimulation (taVNS) is a non-invasive method that regulates the autonomic nervous system via electrical stimulation of the auricular branch of the vagus nerve. Recent literature demonstrates that taVNS can decrease systemic inflammation, attenuate emotional disorders, modulate autonomic functions, and facilitate neural plasticity. This review examines the neurophysiological mechanisms of taVNS, including stimulation paradigms (short- and intensive, prolonged), and clinical findi [...]

2955 13247

Open Access Original Research

Mindful Attention and Awareness Prospectively Predicts Stress in Daily Life: A Multilevel Modeling Approach

Received: 17 June 2025;  Published: 09 October 2025;  doi: 10.21926/obm.icm.2504042

Abstract

Chronic stress increases a person’s vulnerability for physical and mental health conditions that take root in the “common soil” of inflammation. Dispositional, or trait, mindfulness has been identified as a protective factor against perceived stress. However, the theory that trait mindfulness can prospectively predict lower perceived stress in natural settings has yet to be thoroughly tested. The current study used a daily diary prospective design to observe perceived stress in response to difficult events. Partici [...]

666 2856

Open Access Original Research

Evaluation of the Transitional Pain Service Specialized Iyengar-Informed Yoga Program for Chronic Post-Surgical Pain: A Pilot Randomized Controlled Trial

Received: 29 April 2025;  Published: 30 September 2025;  doi: 10.21926/obm.icm.2503041

Abstract

The objective of this randomized controlled trial (RCT) was to evaluate the feasibility and efficacy of a specialized Iyengar-informed yoga intervention for individuals who experience chronic post-surgical pain (CPSP). This prospective, multi-wave pilot RCT was pre-registered at clinicaltrials.gov (NCT03460028) and designed in accordance with the 2010 CONSORT statement. Participants (N = 21) with CPSP were out-patients or community members affiliated with a Toronto hospital. Participants were randomized to an 8-wee [...]

1019 3868

Open Access Editorial

World Federation of Acupuncture-Moxibustion Societies (WFAS)/Acupuncture Science Association Sweden (ASAS) 2025 International Congress – Personal Report1

Received: 24 September 2025;  Published: 25 September 2025;  doi: 10.21926/obm.icm.2503040

Abstract

This personal report summarizes the key experiences and insights gained from attending the 2025 International Symposium organized by the World Federation of Acupuncture-Moxibustion Societies (WFAS) and the Acupuncture Science Association of Sweden (ASAS), held in Stockholm. The event brought together international experts to explore recent advances in acupuncture research, clinical applications, education, and global integration. Despite notable challenges—including issues with AI-assisted real-time translation and [...]

1431 6420

Open Access Research Article

A Randomized Control Trial of the Effects of a Hatha Yoga Program on Psychological Well-Being

Received: 11 March 2025;  Published: 23 September 2025;  doi: 10.21926/obm.icm.2503039

Abstract

Hatha yoga is a common style of yoga used for physical, emotional, mental, and spiritual benefits, enhancing quality of life and well-being. The current study used a randomized control trial (RCT) to investigate whether completing an eight-week posture-based Hatha yoga program would lead to greater psychological benefits than taking part in an eight-week lecture series about the history and philosophy of yoga. Fifty-five participants (42 female, age range 18-32) completed five self-report measures both before and a [...]

1173 7926

Open Access Concept Paper

Toward a Unifying Transcultural Perspective on Illness, Health and Wellbeing: A Theoretical Proposition

Received: 04 March 2025;  Published: 11 September 2025;  doi: 10.21926/obm.icm.2503038

Abstract

This paper presents a unifying transcultural perspective on human illness, health and wellbeing by integrating insights from cognitive psychology, existential psychotherapy, Zen philosophy, Traditional Chinese Medicine (TCM), and quantum consciousness theory. Kahneman and Tversky’s work on heuristics and biases highlights cognitive constraints shaping decision-making, while Yalom’s existential therapy explores fundamental struggles with death, freedom, and meaning. Watts’ Zen philosophy critiques the illusion of eg [...]

1033 4203

Open Access Perspective

Atimiaphobia: A Phenomenological Account of the Fear of Losing Honor or Being Labeled Shameless due to the Sexual Values Assigned to Femininity

Received: 30 May 2025;  Published: 10 September 2025;  doi: 10.21926/obm.icm.2503037

Abstract

Honor and shame function as moral currencies in many collectivistic cultures, shaping individual behavior, gender roles, and psychosocial well-being. This paper introduces Atimiaphobia—a newly proposed specific phobia defined as the intense and persistent fear of losing honor (particularly for men) or being labeled as shameless (particularly for women). Rooted in patriarchal, collectivist, and honor-based cultures, atimiaphobia manifests through intrusive thoughts, hypervigilance, emotional turmoil, and compu [...]

1204 5759

Open Access Review

A Review on the Ethnomedicinal Plants Used in Zimbabwe for the Treatment and Management of Skin Conditions: Perspectives on Pharmacological and Toxicological Evaluation

Received: 05 March 2025;  Published: 19 August 2025;  doi: 10.21926/obm.icm.2503036

Abstract

Medicinal plants remain central to healthcare in Africa, where up to 80% of the population relies on traditional remedies to manage a range of health conditions, including skin ailments. In Zimbabwe, the country's rich biodiversity and favourable agroecological zones support a diverse range of ethnomedicinal plants. However, much of the knowledge surrounding these plants remains dispersed and scientifically under-evaluated. This review consolidates evidence from ethnobotanical surveys, peer-reviewed research, and g [...]

2481 16194

Open Access Original Research

Treatment Choices and Healthcare Services Utilization Amongst Lumbosacral Radiculopathy Patients: Results from a Randomized Controlled Trial

Received: 06 January 2025;  Published: 07 August 2025;  doi: 10.21926/obm.icm.2503035

Abstract

Lumbosacral radicular pain (LRP) is a common sequelae of low back pain, the world’s leading cause of years lived with disability. LRP typically causes numbness, weakness, and tingling into the lower extremity and is associated with high rates of pain and impaired function. Despite its prevalence, there is significant heterogeneity among clinical practice guidelines for the treatment of LRP, which may contribute to poor patient outcomes. The aim of the present study was to identify treatments that participants [...]

2410 6212

Open Access Review

Exercise Training and Cardioprotection in Cardiovascular Disease: A Review of Mechanisms

Received: 27 November 2024;  Published: 05 August 2025;  doi: 10.21926/obm.icm.2503034

Abstract

Cardiovascular disease remains the leading cause of death worldwide, prompting extensive research into effective methods for treatment and prevention. Among these, exercise training and physical activity are widely recognized as the safest and most effective strategies for improving health. Specifically, exercise training has been explored for its role in cardioprotection, particularly in reducing damage caused by ischemia-reperfusion (I/R) injury and myocardial infarction (MI). Both high-intensity interval trainin [...]

1009 5562

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