Table of Content

Open Access Original Research

Mesoscale Modeling of Extrusion and Solidification During Material Extrusion Additive Manufacturing

Received: 22 August 2023;  Published: 25 October 2023;  doi: 10.21926/rpm.2304033

Abstract

In this work, we apply a multiphysics approach to fused deposition modeling to simulate extrusion and solidification. Restricting the work to a single line scan, we focus on the application of polylactic acid. In addition to heat, momentum and mass transfer, the solid/liquid/vapor interface is simulated using a front-tracking, level-set method. The results focus on the evolving temperature, viscosity, and volume fraction and are cast within a set of parametric studies, to include the printing and extrusion speed, a [...]

1537 7993

Open Access Review

Quantum Semiconductors Based on Carbon Materials for Nanophotonics and Photonics Applications by Electron Shuttle and Near Field Phenomena

Received: 16 September 2023;  Published: 26 December 2023;  doi: 10.21926/rpm.2304037

Abstract

This review intended to resume key Research reports and publications that open many themes and topics related to Carbon-based semiconductors and Quantum emitters. The Design and synthesis of highly pure materials such as Graphene, Carbon Nanotubes, fullerenes, and other Carbon-based allotropes were shown. They presented their most important and promising properties concerning new studies and developments in photonics. Carbon-based Quantum dots, semiconductors, and higher sized Nanoplatforms allowed us to discuss fu [...]

1105 7986

Open Access Original Research

The Effect of Rake Angle and Cutting Edge Radius on the Orthogonal Cutting Process of Ti6Al4V Alloy

Received: 23 February 2024;  Published: 18 June 2024;  doi: 10.21926/rpm.2402013

Abstract

This paper investigates the effect of rake angle, α, cutting edge radius, r, and feed rate, f, on the cutting force and cutting zone temperature during orthogonal dry cutting of Ti6Al4V. A numerical model representative of the 2D orthogonal cutting process is developed using ABAQUS/Explicit software. Johnson-Cook, (JC) constitutive material model is used to describe material plasticity. JC damage model and energy-based fracture criterion are used to describe damage initiation and evolution. Using Minitab-19 softwar [...]

1389 7908

Open Access Review

Nanomedicine: Pioneering a New Frontier in Neuro-Ophthalmology

Received: 23 April 2024;  Published: 29 August 2024;  doi: 10.21926/rpm.2403022

Abstract

Nanotechnology is one of the most promising fields of study, and it represents a pioneering leap in science and technology by the precise control over materials at the atomic and molecular level. This transformation affects numerous aspects of modern human life, including medicine, healthcare, electronics, computing, and energy storage. Nanotechnology has shown significant advancements in managing various health problems through different nano-formulations. These engineered nano-systems can be used as drug delivery [...]

1656 7855

Open Access Review

Nanomaterials with Plant or Animal Origin for Greener Biodelivery and Biosensor Applications: A Review

Received: 26 October 2022;  Published: 12 June 2023;  doi: 10.21926/rpm.2302023

Abstract

Nanomaterials are now used in almost every field of science; as conductors and electrodes in electronics, as nanodelivery systems in health screenings and drug delivery, as nanofibrils in filtering and textile industry, as nanoparticles in biosensor fabrication for toxin and pathogen detection, and in packaging materials in the food industry. Synthetic materials and plastics accumulate in the environment causing increasing health concerns for their use in food and pharmaceutical products. Therefore, researchers now [...]

1476 7817

Open Access Original Research

Pyrethrin Type Compounds from the Municipal Solid Waste Ghazipur Landfill Inert Soil as Brain and Cancer 5-HT Receptor Binding Agents

Received: 17 June 2023;  Published: 01 September 2023;  doi: 10.21926/rpm.2303032

Abstract

The Inert soil obtained from the Ghazipur Municipal Solid Waste landfill located in East Delhi, India has been used as the starting material for the work described in this paper. This mountain-like monster is often in the news for its bad smell, pollution of the groundwater in the area from its leachates, and the occasional fires in it endangering the lives of the people living nearby. Landfills produce many greenhouse gases (CO2, CH4, CO, HCHO, H2S, and NH3) which are poisonous and cause environmental pollution in [...]

1260 7677

Open Access Research Article

Plane Waves Scattered by a Spherical Inclusion in a Half Space of Poroelastic Material

Received: 09 December 2020;  Published: 02 June 2021;  doi: 10.21926/rpm.2102021

Abstract

This paper concerns a poroelastic half-space in which plane compressional waves are scattered by a spherical inclusion. Addition theorems for the spherical wave functions are utilized to meet the boundary conditions on the plane, and the satisfaction of the given conditions on the boundary of the sphere leads to three infinite series equations, whose solution can be acquired by successive approximations. Further, its existence and uniqueness are discussed.

1716 7651

Open Access Original Research

Physiological Response of a Natural Central Incisor Tooth to Various Loading Conditions: A 3D Finite Element Study

Received: 05 May 2022;  Published: 24 April 2023;  doi: 10.21926/rpm.2302017

Abstract

This study evaluates the influence of different loading angles and the area of loading on the ensuing stress distribution and the physical response of a natural central incisor tooth, using a 3D finite element analysis. The CAD model of the incisor tooth assembly (including enamel, dentin, periodontal ligament, pulp, gingiva and jaw bone) was subject to an external (chewing) load of 100 N, over four different areas and at four different angles along the vertical. It was observed that the tooth experiences high von- [...]

875 7628

Open Access Editorial

Acknowledgment to Reviewers of Recent Progress in Materials in 2021

Received: 05 January 2022;  Published: 06 January 2022;  doi: 10.21926/rpm.2201001

Abstract

The editors of Recent Progress in Materials would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2021. 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 certificate of re [...]

956 7406

Open Access Review

Insights Focused on Hybrid Graphene Modifications within the Nanoscale for Opto-Electronics Perspectives

Received: 26 May 2023;  Published: 04 August 2023;  doi: 10.21926/rpm.2303030

Abstract

This brief letter presents this Special Issue nominated as “Hybrid Graphene-based Materials: Synthesis, Characterization, Properties, and Applications”. This intends to show and discuss the main properties of Graphene and its derivatives; and how it could be synthesized, modified and tuned for Optics, Electro-Optics, Electronics, and Quantum characteristics. In this context, the synthesis and chemical modifications were highlighted for the design of Hybrid composites, platforms. In this context, it was afforded to [...]

1201 7351

Open Access Research Article

Non Solved Contemporary Scientific Problems of Non-Conventional Bio-Surfaces Lubrication

Received: 19 December 2022;  Published: 27 March 2023;  doi: 10.21926/rpm.2301013

Abstract

This paper presents new non solved, scientific research directions and their applications in contemporary non-conventional lubrication problems of the bio-surfaces domain. Here are described new research scientific trends and research problem solutions of hydrodynamic lubrication for living tissue, human skin and human cartilage joints surfaces. At first in introduction is described the state of the art, a new purpose of anticipate research and the bio-tribology connections with other scientific domains are documen [...]

965 7246

Open Access Research Article

Biocompatibility and Surface Integrity of Zirconia Ceramics Treated by Laser-plasma Driven Shock-waves

Received: 10 April 2022;  Published: 22 November 2022;  doi: 10.21926/rpm.2204025

Abstract

This is a multi-disciplinary paper focused on the preliminary results of deploying laser shock treatment (LST) to ZrO2 ceramics. This work has significance in several industrial sectors for components that will benefit from strengthening. These components are, namely: dental implants; cutting and drawing tools; valves, bearings, pressure vessels, heat exchangers and high-performance scissors and knives, where modification of hard, brittle materials properties such as that of a ZrO2, can yield a performance boost. T [...]

1156 7186

Open Access Original Research

Mechanical Characterization of a Tunable 3-D Collagen-Hyaluronic Acid Hydrogel for Use in Cell Culture

Received: 28 June 2024;  Published: 17 December 2024;  doi: 10.21926/rpm.2404028

Abstract

Many cells demonstrate variances in behavior due to their cell culture environment. To provide a mechanically-tunable, tissue-like environment, a 3D hydrogel for cell culture was formulated using collagen (Col) and hyaluronic acid (HA) to help provide a system for studying these dynamic cellular responses in a soft-tissue environment. A design of experiments was organized to study the effects of collagen concentration, HA fragment size, and Col: HA mass ratio on the hydrogel mechanical properties. Mechanical charac [...]

1243 7181

Open Access Research Article

Spin Entanglement – A Unifying Principle for Superconductors and Molecular Bonding

Received: 20 December 2023;  Published: 03 June 2024;  doi: 10.21926/rpm.2402012

Abstract

The spin-statistics theorem is generalized to include quantum entanglement. Specifically, within the context of spin entanglement, we prove that isotropically spin-correlated (ISC) states must occur in pairs. This pairing process can be composed of parallel or anti-parallel states. Consequently, the article proposes using ISC states as a unifying principle to explain better Bose-Einstein condensates, the theory of superconductivity, and molecular and atomic orbitals, all of which involve a pairing process. The theo [...]

927 7131

Open Access Research Article

Accounting for the Influence of Heat-Moisture Treatment Mode When Designing Concrete Composition

Received: 12 January 2023;  Published: 24 February 2023;  doi: 10.21926/rpm.2301009

Abstract

The article proposes a method that considers the parameters of heat and moisture treatment of concrete when designing its composition. Based on the analysis of experimental data, formulas are proposed that allow taking into account the type and characteristics of cement, the characteristics of aggregates, the effect of temperature and duration of steaming, and the water-cement ratio. Graphs and nomograms have been obtained, which makes it possible to simplify the calculation procedure according to the proposed meth [...]

1200 6911

Open Access Original Research

Application of the Extrapolation Method in Battery Diagnostics for Electric Vehicles

Received: 17 August 2022;  Published: 14 November 2022;  doi: 10.21926/rpm.2204023

Abstract

In a lithium-ion battery, the crossing of its charging–discharging curves represents an unambiguous current capacity. The reproduction of a complete charging–discharging cycle defines the maximum possible charge for a current battery state. When obtaining of the curves experimentally, one should consider the duration of polarization or depolarization. It is reported that the battery capacity depends considerably on the value of the battery’s internal resistance as this value defines the location of the actual charg [...]

1034 6641

Open Access Original Research

Pentachlorophenol Effect on Auxin Production by Pseudomonas fluorescens GU059580 and Its Application in Wastewater Bioremediation

Received: 29 July 2022;  Published: 18 November 2022;  doi: 10.21926/rpm.2204024

Abstract

Bioaugmentation by Pseudomonas strains is widely used for the removal of pollutants in wastewater. In this study, we aimed to determine the removal of pentachlorophenol (PCP, 800 mg·L–1) in secondary wastewater by the bioaugmentation process. We determined the effects of using three surfactants, namely sodium dodecyl sulfate (SDS), cetyl-tri-methyl-ammonium bromide (CTAB), and Tween 80 for PCP removal. We determined the effect of the role of PCP surfactant for the biofilm and auxin production of the se [...]

1058 6621

Open Access Editorial

Acknowlegement to Reviewers of Recent Progress in Materials in 2020

Received: 07 January 2021;  Published: 07 January 2021;  doi: 10.21926/rpm.2101001

Abstract

The editors of Recent Progress in Materials 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 certificate o [...]

1094 6589

Open Access Research Article

Development of Parametric Voronoi-Based Scaffolds for Trabecular Bone Tissue Replacement Using Additive Manufacturing

Received: 07 February 2025;  Published: 28 May 2025;  doi: 10.21926/rpm.2502010

Abstract

Tissue engineering is a technique for regenerating living tissue using portions of the patient's tissue, which are dissociated into cells and cultured on biological or synthetic supports before being transferred to the patient. In this context, the present study seeks to develop implant models (scaffolds) for replacing trabecular bone tissue, with requirements such as porosity and interconnected pores. All design development was aimed at the manufacturing of scaffolds using the material extrusion additive manufactu [...]

1152 6463

Open Access Review

Modified Organized Systems by Incorporation of Carbon Allotropes and Derivatives for Electron Shuttle, ET, FRET, MEF, and Quantum Biology Coupling

Received: 14 October 2023;  Published: 31 January 2024;  doi: 10.21926/rpm.2401003

Abstract

This communication was brief to show how high conjugated carbon-based structures and carbon allotropes could participate as electron shuttles, semiconductors, quantum emitters, and Optoelectronic processors within confined nanostructured organized systems. In particular, it was focused on nanoassemblies such as vesicles, micelles, and lipidic nanoparticles and incorporated insights from other types of nanomaterials that could afford to develop new organized systems. In these cases, the term organized system was use [...]

1049 6446

Open Access Original Research

Strength Properties of Cellulosic Fibrous Mats Impregnated with Water Repellents Based on Reclaimed Polystyrene

Received: 23 August 2022;  Published: 28 October 2022;  doi: 10.21926/rpm.2204022

Abstract

Cellulosic fibrous mats were impregnated with various water-repellent formulations based on reclaimed polystyrene (5, 10, 15, and 20%), alkyd resin (5%), gum rosin (5%), and paraffin wax (0.5%). The mats were tested for their bursting strength and resistance to bending. They were also subjected to the ring crush test and short-span compression test. By increasing the concentration of total solid ingredients (5, 10, 15, 20, and 25.5%), the retention and grammage of the mats were increased, and all strength propertie [...]

1370 6370

Open Access Interview

An Interview with Prof. José Ignacio Álvarez Galindo

Received: 29 August 2022;  Published: 30 August 2022;  doi: 10.21926/rpm.2203016

Abstract

Interview An Interview with Prof. José Ignacio Álvarez GalindoRecent Progress in Materials Editorial OfficeLIDSEN Publishing Inc., 2000 Auburn Drive, One Chagrin Highlands, Suite 200, Beachwood, OH, USA; E-Mail: rpm@lidsen.comRecent Progress in Materials2022, volume 4, issue 3doi:10.21926/rpm.2203016Received: August 29, 2022Accepted: August 29, 2022Published: August 30, 2022

1026 6288

Open Access Original Research

Influence of Thermal Environment Conditions on Mechanical Properties of MEX Printed 17-4 PH Stainless Steel

Received: 18 February 2024;  Published: 22 August 2024;  doi: 10.21926/rpm.2403020

Abstract

This study investigates the influence of thermal environmental conditions during printing and their effects on the mechanical properties of material extrusion (MEX) 3D-printed 17-4 PH stainless steel. Various ambient temperatures and cooling behaviors were used during the printing process of the tensile specimens. Following DIN EN ISO 50125 and DIN EN ISO 6892, the study analyzes tensile strength, elongation and yield strength. The results demonstrate that the thermal environmental conditions affect both tensile an [...]

899 6146

Open Access Research Article

Spark Plasma Sintering of Cu-Ti-Ni Ternary Alloy: Microstructural, Thermal and Electrical Properties

Received: 28 December 2023;  Published: 01 July 2024;  doi: 10.21926/rpm.2403016

Abstract

High strength and good conductivity are both critical parameters for copper-based alloys for electrical and other technological applications. This study is aimed to produce copper alloys and metal matrix composites (MMCs) with enhanced physical properties. Cu-Ti-Ni ternary alloys and MMCs samples were sintered at 600 to 700°C using spark plasma sintering (SPS), with a heating rate of 100°C/minutes, uniaxial pressure of 50 MPa, and a holding time of 10 minutes. Scanning electron microscopy (FE-SEM) was used to exami [...]

1057 6116

Open Access Interview

An Interview with Prof. Vincenzo M. Sglavo

Received: 11 April 2022;  Published: 14 April 2022;  doi: 10.21926/rpm.2202007

Abstract

An Interview with Prof. Vincenzo M. Sglavo.

972 6058

Open Access Perspective

Whisker Bond: From Findings to Concept in Refractories

Received: 12 January 2024;  Published: 12 April 2024;  doi: 10.21926/rpm.2402010

Abstract

Ceramic bonds are conventionally formed during the burning of refractory bricks and by using pre-fabricated blocks or monolithic lining, which is characterized as the coalescence of the particles by liquid sintering. However, the whisker bond was discovered with the outstanding performance of unburnt periclase–spinel–Al bricks while substituting magnesia–chrome bricks in the chromium-free campaign of refractory lining of RH degassers. Thanks to the prominent effect of the whisker bond, such a refr [...]

1158 5833

Open Access Editorial

Potential Applications of Nanomedicine

Received: 03 December 2023;  Published: 05 December 2023;  doi: 10.21926/rpm.2304036

Abstract

EditorialPotential Applications of NanomedicineHossein Hosseinkhani *Innovation Center for Advanced Technology, Matrix HT, Inc., New York, NY 10019, USA; E-Mail: hh@matrix-inc.com* Correspondence: Hossein Hosseinkhani; E-Mail: hh@matrix-inc.comRecent Progress in Materials2023, volume 5, issue 4doi:10.21926/rpm.2304036Received: December 03, 2023Accepted: December 04, 2023Published: December 05, 2023

1152 5614

Open Access Original Research

Elementary Collective Effects in Systems Containing Small Fermion-Numbers

Received: 14 October 2023;  Published: 06 February 2024;  doi: 10.21926/rpm.2401004

Abstract

Collective effects are a typical nuclear feature that refers to the behavior of a group of N fermions (protons and neutrons) within the atomic nucleus. Our interest lies in light nuclei only. Thus, we consider here, using the Lipkin model, a small-N fermion system at low-temperature T and discover -collective phenomena. Our fermion-model simplicity allows one to gain insight into collective fermion behavior. We focus attention, for N<20, on several quantifiers. These include standard ones related to thermal [...]

1217 5369

Open Access Correction

Correction: Non Solved Contemporary Scientific Problems of Non-Conventional Bio-Surfaces Lubrication. Recent Progress in Materials 2023; 5(1): 013

Received: 26 April 2023;  Published: 27 April 2023;  doi: 10.21926/rpm.2302018

Abstract

CorrectionCorrection: Non Solved Contemporary Scientific Problems of Non-Conventional Bio-Surfaces Lubrication. Recent Progress in Materials 2023; 5(1): 013Krzysztof Wierzcholski *, Jacek GospodarczykWSG Bydgoszcz University Garbary 2, Bydgoszcz, Poland; E-Mails: Krzysztof.wierzcholski@wp.pl; jacek.gospodarczyk@byd.pl* Correspondence: Krzysztof Wierzcholski; E-Mail: Krzysztof.wierzcholski@wp.plAcademic Editor: Hossein HosseinkhaniSpecial Issue: Non-Conventional Hydrodynamic Lubrication for Biological and Mechanic [...]

900 5264

Open Access Original Research

Construction and Evaluation of a Modular Anthropomorphic Phantom of the Skull with an Exchangeable Specimen Jar to Optimize the Radiological Examination of Temporal Bone Pathology

Received: 26 March 2024;  Published: 25 July 2024;  doi: 10.21926/rpm.2403018

Abstract

To develop a modular anthropomorphic phantom to evaluate the performance of radiological techniques for detecting pathologies in the temporal bone region. A phantom was constructed using a human skull, temporal bone specimen, and 3D-printed contour of a human skull. The human skull was embedded in tissue-equivalent plastic, with a cavity to hold the plastic jars containing the exchangeable freshly frozen human temporal bones. Subsequently, stepwise introduction and examination of different clinicopathological scena [...]

1045 5205

Open Access Research Article

Capillary Suction Properties of Mortar Made with Recycled Plastic Aggregates Elaborated from Waste Electrical and Electronic Equipment

Received: 18 October 2023;  Published: 15 March 2024;  doi: 10.21926/rpm.2401007

Abstract

It is possible to revalue the plastic fraction from WEEE using it as a recycled aggregate (RA) in cement mortars. However, this feasibility depends on elaborating a granular material via a core-shell strategy to stabilize the potential contaminants. The core is a plastic particle, and the shell is a cement, fillers, and activated carbon mixture. Due to the hydrophilic characteristics of the shell and the presence of interstitial sites generated by the use of the RA, it is necessary to study the wetting properties o [...]

893 5047

Open Access Interview

An Interview with Assoc. Prof. Carlo Santulli

Received: 26 February 2023;  Published: 27 February 2023;  doi: 10.21926/rpm.2301010

Abstract

InterviewAn Interview with Assoc. Prof. Carlo SantulliRecent Progress in Materials Editorial OfficeLIDSEN Publishing Inc., 2000 Auburn Drive, One Chagrin Highlands, Suite 200, Beachwood, OH, USA; E-Mail: rpm@lidsen.com Recent Progress in Materials2023, volume 5, issue 1doi:10.21926/rpm.2301010Received: February 26, 2023Accepted: February 26, 2023Published: February 27, 2023

820 5020

Open Access Original Research

Valorization of Agroindustrial Waste as Biosorbent of Lead (II) in Solution and its Reuse in the Manufacture of Building Bricks

Received: 24 October 2024;  Published: 10 January 2025;  doi: 10.21926/rpm.2501002

Abstract

Lead is a non-biodegradable toxic heavy metal. Biosorption is a simple, cost-effective and eco-friendly method for remediating lead-contaminated environments. Additionally, rice husk is a highly available residual biomass that can be used as a biosorbent. This study aimed to analyze the biosorption of Pb2+ using both natural and chemically treated rice husk and to evaluate the incorporation of the resulting biomass-contaminant residue into ceramic matrices to immobilize the removed Pb2+. Natural and alkaline-activa [...]

1027 5003

Open Access Retraction

Retraction: Roy S. Performance of Grouted Coupler Embedded in Reinforced Concrete ABC Bridge Pier at Vehicle Impact. Recent Progress in Materials 2023; 5(1): 001

Received: 28 February 2023;  Published: 28 February 2023;  doi: 10.21926/rpm.2301011

Abstract

RetractionRetraction: Roy S. Performance of Grouted Coupler Embedded in Reinforced Concrete ABC Bridge Pier at Vehicle Impact. Recent Progress in Materials 2023; 5(1): 001Recent Progress in Materials Editorial OfficeLIDSEN Publishing Inc., 2000 Auburn Drive, One Chagrin Highlands, Suite 200, Beachwood, OH, USA; E-Mail: rpm@lidsen.com Recent Progress in Materials2023, volume 5, issue 1doi:10.21926/rpm.2301011Received: February 28, 2023Accepted: February 28, 2023Published: February 28, 2023

830 4999

Open Access Original Research

Quantitative Evaluations on Harmonic and Anharmonic Lattice Thermal Capacity of Polymers

Received: 28 December 2024;  Published: 22 May 2025;  doi: 10.21926/rpm.2502008

Abstract

So-called ‘Generalized Skettrup Model(s)’ (GSMs) of different (1D, 2D, 3D) spatial dimensionalities are used at simulations on temperature-dependent harmonic and anharmonic fractions of lattice thermal capacity of polyethylene and polypropylene with crystalline and/or amorphous atomic structures of limited spatial extents. Basic equations of the GSM slot in explicitly quantization effects of the single-particle and many-particle energy levels of spatially confined phonons. The harmonic lattice thermal c [...]

843 4805

Open Access Editorial

Acknowledgment to Reviewers of Recent Progress in Materials in 2022

Received: 04 January 2023;  Published: 04 January 2023;  doi: 10.21926/rpm.2301002

Abstract

The editors of Recent Progress in Materials would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2022. 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 certificate of re [...]

770 4554

Open Access Original Research

Effect of EVA on the Unnotched Impact Toughness of PP/HDPE/EVA Blends

Received: 29 May 2025;  Published: 24 September 2025;  doi: 10.21926/rpm.2503015

Abstract

Beverage bottle caps are usually made from two primary materials: PP and HDPE. In this study, the evaluation criteria were the unnotched impact toughness and the microstructure of PP/HDPE/EVA samples produced by injection molding. The samples were tested according to ASTM D256. PP/HDPE/EVA blends were prepared with various ratios: 47.5/47.5/5, 45/45/10, 42.5/42.5/15, 40/40/20, and 37.5/37.5/25. The results showed that adding EVA to the PP/HDPE blend significantly increased the unnotched impact toughness: from 84.03 [...]

971 4552

Open Access Editorial

Acknowledgment to Reviewers of Recent Progress in Materials in 2023

Received: 04 January 2024;  Published: 05 January 2024;  doi: 10.21926/rpm.2401001

Abstract

The editors of Recent Progress in Materials would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2023. 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 can sign up t [...]

831 4311

Open Access Original Research

Bioremediation of Organic Compounds and Trace Metals from Landfill Leachate Using Lactobacillus kefiri Strains: A Sustainable Approach Based on Facultative Treatment

Received: 09 November 2023;  Published: 16 September 2025;  doi: 10.21926/rpm.2503014

Abstract

The sustainable management of water resources is increasingly recognized as a critical component of environmental conservation and socio-economic development. Among the most challenging aspects of wastewater treatment is the effective remediation of landfill leachate, a complex and highly polluted effluent characterized by high levels of organic matter, ammonia, turbidity, and heavy metals. This study investigates an integrated treatment approach that combines chemical coagulation using aluminum sulfate with a subs [...]

689 3460

Open Access Editorial

Acknowledgment to Reviewers of Recent Progress in Materials in 2024

Received: 02 January 2025;  Published: 02 January 2025;  doi: 10.21926/rpm.2501001

Abstract

The editors of Recent Progress in Materials would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2024. 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 can sign up t [...]

710 3377

Open Access Original Research

Deep Learning Approaches for Predicting Strain Energy in Heterogeneous Materials

Received: 15 July 2025;  Published: 24 October 2025;  doi: 10.21926/rpm.2504016

Abstract

This paper investigates data-driven strain energy prediction for heterogeneous elastic materials using the Mechanical MNIST benchmark dataset (60,000 28 × 28 stiffness maps by precomputed finite-element results). The results by classical regression models (linear regression, random forest, and gradient boosting) using hand-crafted features were compared with the results by the deep learning models (Convolutional neural network (CNN) and residual network (ResNet)) trained end-to-end on images. In held-out tests, CNN [...]

775 2819

Open Access Original Research

Rapid Green Synthesis of Silver Nanoparticles and Alginate-Silver Nanocomposite Beads Using Mashmoom (Ocimum basilicum), a Bahraini Household Medicinal Herb

Received: 16 June 2025;  Published: 17 November 2025;  doi: 10.21926/rpm.2504017

Abstract

The study focuses on the rapid green synthesis of silver nanoparticles (AgNPs) and alginate-silver nanocomposite (Alg-AgNc) beads using sweet basil or Mashmoom (Ocimum basilicum), a common household medicinal herb in Bahrain. The aqueous extract of mashmoom was used as a reducing and stabilizing agent in the reduction of the precursor salt, silver nitrate, and formation of stable AgNPs. The Alg-AgNc beads were prepared by ionotropic gelation of sodium alginate-AgNPs solution in calcium chloride. A strong surface pl [...]

594 2069

Open Access Editorial

Acknowledgment to Reviewers of Recent Progress in Materials in 2025

Received: 04 January 2026;  Published: 04 January 2026;  doi: 10.21926/rpm.2601001

Abstract

The editors of Recent Progress in Materials 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 can sign up t [...]

373 899

Open Access Original Research

A New Model for the Shear of Atomic Planes

Received: 21 December 2025;  Published: 18 March 2026;  doi: 10.21926/rpm.2601002

Abstract

The article presents a model that describes the shear of atomic planes in crystalline solids by accounting for their electronic structure. Previous studies have shown that an isotropic distribution of valence electrons leads to a spherically symmetric interatomic potential, which affects the stability of the crystal lattice against small shear deformations. Under these conditions, lattice stability is largely determined by the crystal's surface layer. As a consequence, the resistance to atomic-plane shear exhibits [...]

143 435

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