by Lai Fern Ow  and Eugenie Chan

Received: 21 October 2021;  Published: 24 January 2022;  doi: 10.21926/aeer.2201003

This study investigated energy consumption and greenhouse gas (GHG) emission across various playing surfaces (e.g., greens, tees, fairways, and roughs) in an urban parkland golf course. The turfs of golf courses require frequent maintenance to ensure high aesthetic and play quality. Maintenance includes aeration, mowing, irrigation, and fertilization. The annual energy-based carbon footprint was found to be the highest for fairways, followed by greens, tees, and roughs. However, CO2 exchange in the grass was found [...]

by Luis A. Martínez  , Lizeth Rodríguez  , Carlos M. Flores  , Carlos A. Cisneros  , Mario W. Chávez  , Idis A. Lemus  and René I. Ariza

Received: 28 August 2022;  Published: 03 January 2023;  doi: 10.21926/aeer.2301001

Net zero energy building design methodologies include integrative approaches and numerical tools to provide optimal performance and cost-effective results. Team integration, characterized by knowledge transfer between disciplines, has yet to be quantified for the design processes of these buildings. This article proposes a specific methodology for designing net zero energy buildings, tested through a case study design process conducted in an academic setting at Universidad Centroamericana in El Salvador, with the p [...]

by Alpha Chukwumela Ajie  , Mohammed Moore Ojapah  and Endurance Ogheneruona Diemuodeke

Received: 07 February 2023;  Published: 20 June 2023;  doi: 10.21926/jept.2302020

With their higher sustainability index, biofuels, environmentally-friendly and renewable nature is a viable alternative energy source in the transportation sector. This study presents the effect of waste cooking oil (WCO) biodiesel on performance, combustion, and emission from a compression ignition engine. The biodiesel was blended with diesel in varying proportions of 5% biodiesel and 95% diesel (designated as B5), 10% biodiesel in diesel (B10), 15% biodiesel in diesel (B15), 20% biodiesel in diesel (B20), 50% bi [...]

by Misirkhan A. Talybov  , Lala A. Azizova  and Ilmutdin M. Abdulagatov

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

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 [...]

by Marcus A. Henning  , Xuan Joanna Feng  , Yan Chen  , Fiona Moir  , Christian U. Krägeloh  , Jennifer Hobson  and Craig S. Webster

Received: 17 May 2021;  Published: 09 October 2021;  doi: 10.21926/obm.icm.2104033

This review examines the quality of the research exploring mindfulness within tai chi chuan and the way this integrative practice benefits health and learning for higher education students. A narrative review based on a systematic search was conducted. Ten English and three Chinese databases were utilised to appraise the relevant literature. The initial search identified 874 potentially appropriate English articles and 265 Chinese articles. A final review of 52 Chinese and 8 English articles was conducted. We used [...]

by Allison Ast  , Margaret Meyer  , R. Elyse Heidelberg  , Jennifer M. Allen  , Amy Ly  and Holly Spraker-Perlman

Received: 02 December 2020;  Published: 08 February 2021;  doi: 10.21926/obm.icm.2101005

Children with cancer can experience intense suffering. Currently, despite our best efforts, symptoms associated with both cancer and its treatment result in physical, psychological, and emotional discomfort that can be difficult to manage with traditional Western medicine alone. Developing integrative services within a pediatric hematology-oncology program may help improve cancer-related symptoms by combining different modalities targeting overall health with traditional oncology care. This study details the initia [...]

by Han Zhang  and Joseph D. Smith

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

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 [...]

by Mieczysław Szyszkowicz

Received: 14 April 2021;  Published: 10 June 2021;  doi: 10.21926/aeer.2102014

Each country has its own characteristics of COVID-19 infection trajectory and epidemic waves. Differences in government-implemented restrictions and social regulations result in variability of the virus transmissions and spread dynamics. This in turn results in various shapes of the growth function used to represent and describe the propagation of infection. Statistical methods are applied to fit non-linear functions to represent daily time-series data of the cumulative numbers of COVID-19 cases. The aim of this wo [...]

by Katrien Steenmans  and Rosalind Malcolm

Received: 20 December 2022;  Published: 10 March 2023;  doi: 10.21926/aeer.2301024

Extended Producer Responsibility (EPR) places liability, physical, financial, and/or informative responsibility for a product throughout its life cycle on its producer. Implementing such schemes is expected to result in many environmental and social benefits. Yet, academic and practitioner discussions on the mechanisms focus on environmental impacts, whereas social dimensions of EPR are often side-lined. This short communication contributes to addressing this gap by establishing a research agenda for the justice di [...]

by Kikuko Hayamizu  , Tomoyuki Haishi  , Yasuhiko Terada  , Kunimitsu Kataoka  and Junji Akimoto

Received: 24 January 2023;  Published: 03 April 2023;  doi: 10.21926/rpm.2302014

Pulsed field-gradient (PFG) NMR spectroscopy was applied to thin disk samples (0.5, 1 and 2 mm thick, 4 mm diameter) of LLZO-Ta (Li6La3Zr1.5Ta0.5O12) single crystal. We have measured the diffusion of 7Li in thin pellets (0.5 to 3 mm thick) of NASICON-type LAGP powder and found that the Li+ diffuses preferentially in the thicker direction. In this study, we placed 1 mm thick, 4 mm diameter disk-shaped single crystals vertically, i.e., parallel to the PFG direction. We found that 7Li ions diffuse similarly as in rod- [...]