Table of Content

Open Access Original Research

A Combined Power and Ejector Refrigeration Cycle System for Thermal Energy Recovery from the Waste Heat of Internal Combustion Engine

Received: 31 December 2022;  Published: 06 February 2023;  doi: 10.21926/jept.2301006

Abstract

In this paper, due to the importance of energy recovery from internal combustion engines and the increasing human growing need for power and refrigeration, a two-cycle power and refrigeration system consisting of an organic Rankine cycle and an ejector refrigeration cycle is investigated analytically. The proposed system with the ability to use the ejector as an effective and economical system, can produce simultaneous power and refrigeration by drawing thermal energy from the exhaust gas and engine coolant in the [...]

1603 9825

Open Access Original Research

The Dynamics of the Oceanic Air-Sea Boundary Layer

Received: 13 November 2022;  Published: 05 February 2023;  doi: 10.21926/aeer.2301018

Abstract

This paper presents a model for the similarity structure of the velocity profiles in air and water in the wave boundary layer, which provides predictions in terms of two parameters, F and R, of all its important properties, including the Charnock parameter, the surface drift velocity and the condition for the cancellation of the surface Stokes velocity by the surface current. The parameter, F, arises from the fetch variability of the wave field, and the parameter, R, arises from the duration variability of the wave [...]

974 6042

Open Access Research Article

Membranome Similarity between Glioblastoma Multiforme Cell Lines and Primary Tumors

Received: 27 September 2022;  Published: 03 February 2023;  doi: 10.21926/obm.neurobiol.2301153

Abstract

Genes encoding for proteins associated with the plasma membrane, referred to as the membranome, have long been recognized to play an important role in the development and maintenance of glioblastoma multiforme (GBM). GBM cell lines are commonly used to mimic tumors for in vitro experiments, but the extent to which they resemble GBM tumors in relation to the membranome is unclear. The present study explores the resemblance of GBM cell lines to primary tumors regarding membranome expression. Gene expression data was [...]

1649 8084

Open Access Original Research

Co-development of Low-speed Electric Community Buses for Local Area Revitalization

Received: 10 October 2022;  Published: 02 February 2023;  doi: 10.21926/jept.2301005

Abstract

This paper describes the development of low-speed electric community buses (LSECBs) designed by the author's group and their spread situation in Japan. LSECBs are electric vehicles that can travel on public roads at speeds of less than 5.56 m/s (20 km/h). The university, local government, local businesses, and residents with a co-design approach developed the LSECBs. They have various advantages such as safety due to low speed and low energy consumption. In particular, the LSECBs have features not found in ordinary [...]

1498 8912

Open Access Original Research

Evaluating Peer-to-Peer Electricity Markets across the U.S. Using an Agent-Based Modeling Approach

Received: 14 June 2022;  Published: 02 February 2023;  doi: 10.21926/aeer.2301017

Abstract

The diffusion of distributed energy resources can overcome some challenges associated with the historical centralized model of electric power distribution. Decentralized generation by residential solar photovoltaic cells creates the potential for peer-to-peer (P2P) electricity trading, where households can act as consumers and prosumers to buy and sell renewable electricity. P2P energy markets are emerging at locations across the globe, and market performance is affected by various social, economic, and environment [...]

1582 10379

Open Access Review

A Review on Adsorption Process for the Treatment of Oily Wastewater

Received: 27 September 2022;  Published: 02 February 2023;  doi: 10.21926/aeer.2301016

Abstract

Oil-contaminated or oily wastewater (OW) is generated from various industrial and domestic premises. It consists of fats, oils, and greases and may contain petroleum fractions such as diesel oil, gasoline, and kerosene. It is regarded as one of the most hazardous wastewaters, causing serious environmental and health threats to ecosystems and human beings. The global increase in the discharge of OW coupled with stringent regulations for effluent discharge and incessant drive for the reuse of treated wastewater neces [...]

3019 22785

Open Access Original Research

On the Relationship Between Teacher Stress, Student Age, and Social-Emotional Competence

Received: 24 November 2022;  Published: 01 February 2023;  doi: 10.21926/obm.icm.2301011

Abstract

Stress in teaching leads to many teachers suffering from burnout or leaving the profession. Therefore, it is important to identify specific correlates of teacher stress. The role of student age and social-emotional competence in teacher stress emergence is still unclear To further clarify this relationship, 284 teachers were surveyed using a questionnaire that measured teacher stress, student year grade, and student social-emotional competence. Results show a strong negative relationship between grade level and tea [...]

1436 12125

Open Access Research Article

Intrinsic Lexical Intentionality and the Mathematics of Homomorphism

Received: 28 August 2022;  Published: 01 February 2023;  doi: 10.21926/obm.neurobiol.2301152

Abstract

Moisl [1, 2] proposed a model of how the brain implements intrinsic intentionality with respect to lexical and sentence meaning, where 'intrinsic' is understood as 'independent of interpretation by observers external to the cognitive agent'. The discussion in both was mainly philosophical and qualitative; the present paper gives a mathematical account of the distance structure preservation that underlies the proposed mechanism of intrinsic intentionality. The three-layer autoassociative multilayer perceptron (aMLP) [...]

1136 7944

Open Access Research Article

The Effects of Ge Substrate Surface States and Au Catalyst Layer Thickness on the Growth of Different GexOy Nanomaterials and Nanocrystals Configurations Using Vapor-Liquid-Solid Method with two Steps Temperature Mode

Received: 01 September 2022;  Published: 31 January 2023;  doi: 10.21926/cr.2301006

Abstract

Recently the GexOy nanomaterials have been studying intensively due to their interesting electronic materials, which have many particular properties and applications in nanotechnology and nano-devices fabrication. Much work has been done on many different synthesis methods and their properties of Ge and GexOy nanomaterials. However, the effects of the different Ge substrate surface states and Au catalyst layer thicknesses on the formation of different forms/morphologies of nanomaterials (nanowires, nanorods, nanopa [...]

1169 9383

Open Access Original Research

Estimating CO2 Emissions for Bus Rapid Transit (BRT) Using Life Cycle Assessment: A Case Study in Rio de Janeiro City

Received: 23 September 2022;  Published: 31 January 2023;  doi: 10.21926/aeer.2301015

Abstract

The amount of greenhouse gases has been growing dramatically in recent decades, producing global warming and causing climate change that affects the entire planet. To mitigate these emissions, several nations have committed to implementing measures to reduce emissions of these gases, with carbon dioxide being the main one. The transport sector is one of the leading carbon emitters. It needs to be the object of attention from government authorities and private companies so that sustainable solutions are planned and [...]

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