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Immersive Learning for Sustainable Building Design and Construction Practices

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Journal of Civil Engineering and Architecture 2017年第9期11卷 841-852页

作者： Tahar Messadi Winifred E. Newman andrew braham Darin Nutter 21st Century Chair of Sustainability University of Arkansas Fayetteville AR 72701 USA Department of Architecture University of Arkansas Fayetteville AR 72701 USA Department of Civil Engineering University of Arkansas Fayetteville AR 72701 USA Department of Mechanical Engineering University of Arkansas Fayetteville AR 72701 USA

Educational opportunities for students addressing issues in sustainable built environments are evolving with new learning approaches. Our study asked if technology mediated learning environments using AR （augmented reality） can enhance student learning in the architecture and engineering disciplines. There were multiple study sites, two of them University of Arkansas and Florida International University are discussed. At each site, three collaborative projects were assigned to student teams during fall 2016. Students analyzed an existing building and developed alternative solutions based on improving energy performance. Our paper presents：（1） the research challenge related to the integration of immersive head-mounted display technology providing visual simulations and interactive lessons for interdisciplinary collaboration; and （2） the progress of Phase 1 consisting of our control group results run without the use of AR technology.

关键词： STEM Education sustainability augmented reality cyberleaming immersive learning.

Soluble epoxide hydrolase:a next-generation drug target for Alzheimer's disease and related dementias

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Neural Regeneration Research 2025年第9期20卷 2585-2586页

作者： andrew Gregory Chengyun Tang Fan Fan Department of Physiology Medical College of GeorgiaAugusta UniversityAugustaGAUSA

Alzheimer's disease(AD)and Alzheimer's diseaserelated dementias(ADRD)represent a significant public health challenge,with projections indicating a substantial increase in affected individuals due to the aging global *** the World Health Organization,AD/ADRD has affected more than 55 million individuals worldwide,with an additional 10 million cases diagnosed each year.

关键词： Alzheimer population drug

Human endogenous retrovirus type-W and multiple sclerosis–related smoldering neuroinflammation

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Neural Regeneration Research 2025年第3期20卷 813-814页

作者： Joel Gruchot Laura Reiche andrew Chan Robert Hoepner Patrick Küry Department of Neurology Medical Faculty and University Hospital DüsseldorfHeinrich Heine University DüsseldorfDüsseldorfGermany Department of Neurology InselspitalBern University Hospital and University of BernBernSwitzerland

Introduction to human endogenous retrovirus type-W(HERV-W): Genomic inheritance from the past includes retroviral sequences that have been stably incorporated into our genomes and account for up to 8% of human DNA.

关键词： endogenous inflammation Human

Experimental Study for Effect of Multi-Site Spark Ignition on Dedicated Hybrid Engine Performance under High Dilution Condition

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Journal of Thermal Science 2025年第1期34卷 254-267页

作者： YAN Bowen WATERS Benjamin HAINES andrew MCGHEE Mike HU Tiegang DENG Wei PU Yongxian MA Tianyu Powertrain Engineering R&D Center Chongqing Changan Automobile Co.Ltd. Changan UK R&D Centre Limited

In this study,a triple spark ignition scheme was first designed on a three-cylinder 1.5-L dedicated hybrid engine（DHE）.On this basis,the effect of different ignition modes on engine combustion and emission characteristics was studied,especially under high dilution *** results tested at 2000 r/min and 0.8 MPa BMEP（brake mean effective pressure） show that with highly increased in-cylinder flow intensity,using only passive prechamber（PPC） has a lower lean limit than that with single central spark plug（CSP）,thereby leading to slightly higher minimum fuel consumption and nitrogen oxides（NOx） *** side spark plugs（SSP）based on PPC can result in improved capability of lean limit extension and engine performance than ***,the improvement level is lower than that with triple spark plugs（TSP）.As the excess air ratio λincreases,the advantage of PPC and PPC with SSP in improving the combustion phasing compared with CSP gradually ***,the increasing tendency of their ignition delay and combustion duration is more *** added SSP based on PPC can effectively shorten the ignition delay of leaner mixture,but the combustion duration can be only slightly *** a result,under extremely lean condition,the advantage of PPC and PPC with SSP in terms of combustion characteristics over CSP becomes much *** contrast,the TSP ignition can achieve much shorter ignition delay and combustion duration simultaneously under this *** to the highest available dilution level,the TSP ignition achieves the lowest raw ***,it can also reduce the raw carbon monoxide（CO） and hydrocarbons（HC） emissions compared to CSP due to a more thorough combustion of the end gas *** on the excellent performance of TSP,the highest engine brake thermal efficiency（BTE） was further *** results show that with normal RON 92 fuel,the engine finally achieved 43.69% and 45.02% BTE under stochiometric mode with exhaust

关键词： dedicated hybrid engine high dilution condition NOx emissions passive prechamber thermal efficiency triple spark plug scheme

CO2-mediated bicarbonate conversion to concentrated formate in a CEM-based electrolyzer

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Journal of Energy Chemistry 2025年第1期100卷 605-611页

作者： Haocheng Xiong Donghuan Wu Haonan Li andrew Li Qikun Hu Siyao Song Bingjun Xu Qi Lu State Key Laboratory of Chemical Engineering Department of Chemical Engineering Tsinghua University College of Chemistry and Molecular Engineering Peking University Ordos Laboratory

Renewable energy-driven bicarbonate conversion to valuable chemicals presents an attractive strategy for mitigating CO2emissions,as bicarbonate can be efficiently generated from the capture of atmospheric CO2using alkaline solutions with reactive *** this work,we present a CO2-mediated bicarbonate conversion to pure formate using a cation exchange membrane-based electrolyzer with a 25 cm2electrode *** electrolysis achieved selectivities exceeding 75%for formate at a total current of 2.5 A,achieving formate concentrations up to 1.2 M and yields as high as 95%over extended *** techno-economic assessment confirmed the economic viability of the process,highlighting the potential for bicarbonate electrolysis as a sustainable method for producing valuable chemicals.

关键词： Electrocatalysis Techno-economic assessments Electrochemistry Flow electrolyzer

Static/dynamic friction and wear of some selected polymeric materials for conformal tribo-pairs under boundary lubrication conditions

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Friction 2013年第3期1卷 232-241页

作者： Daniel NILSSON braham PRAKASH Bosch Rexroth Mellansel AB MellanselSweden Division of Machine Elements Department of Engineering Sciences and MathematicsLuleåUniversity of TechnologyLuleåSweden

This work is aimed at investigating the friction and wear performance of different polymeric materials having potential for hydraulic system components under lubricated sliding conditions against a steel counter face.A pin-on-disc test configuration was used for the experimental *** different polymeric materials selected for these studies were commercial polyimides(PI),polyether ether ketone(PEEK),and *** of these materials were bulk materials whereas others were used as coatings applied on to the cast iron *** tribological characteristics of the polymers were compared with a reference grey cast *** frictional characteristics were evaluated in both static and dynamic *** results have shown that by using polymeric materials it is possible to reduce breakaway friction by an order of magnitude compared to grey cast ***,the breakaway friction increased significantly after the wear *** polymeric materials having lowest breakaway friction have shown the highest wear with the exception of the PEEK-PTFE coating which showed low *** with graphite fillers also showed low wear but it resulted in relatively high *** carbon fibre reinforced materials resulted in unstable friction as well as higher wear compared to the PI materials with graphite fillers.

关键词： polymer tribology static friction dynamic friction and lubricated wear

Influence of lubrication,tool steel composition,and topography on the high temperature tribological behaviour of aluminium

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Friction 2021年第1期9卷 155-168页

作者： Justine DECROZANT-TRIQUENAUX Leonardo PELCASTRE braham PRAKASH Jens HARDELL Machine Elements Lulea University of TechnologyLulea SE-97187Sweden Department of Mechanical Engineering Tsinghua UniversityBeijing 100084China

The use of high strength aluminium alloys,such as 6 XXX and 7 XXX series,is continuously increasing for automotive applications in view of their good strength-to-weight *** formability at room temperature is limited and they are thus often formed at high temperatures to enable production of complex *** challenges during hot forming of aluminium are the occurrence of severe adhesion and material transfer onto the forming *** negatively affects the tool life and the quality of the produced *** general,the main mechanisms involved in the occurrence of material transfer of aluminium alloys at high temperature are still not clearly ***,this study is focussed on understanding of the friction and wear behaviour during interaction of Al6016 alloy and three different tool steels in as-received and polished *** tribotests were carried out under dry and lubricated conditions,with two distinct lubricants,using a reciprocating friction and wear *** worn surfaces were analysed using scanning electron microscopy(SEM)and energy dispersive X-ray spectroscopy(EDS).The results showed a high dependence of friction and wear behaviour on the tool steel roughness as well as on the stability of the lubricant *** were found to develop in the contact zone and their capacity to improve the tribological behaviour is seen to be drastically impacted by the surface roughness of the tool *** the tribolayers failed,severe adhesion took place and led to high and unstable friction as well as material transfer to the tool steel.

关键词： friction wear high temperature tribology aluminium lubrication tribolayer

A review of recent advances in tribology

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Friction 2020年第2期8卷 221-300页

作者： Yonggang MENG Jun XU Zhongmin JIN braham PRAKASH Yuanzhong HU State Key Laboratory of Tribology Tsinghua UniversityBeijing 100084China School of Mechanical Engineering Southwest Jiaotong UniversityChengdu 610031China School of Mechanical Engineering University of LeedsLeeds LS29JTUK

The reach of tribology has expanded in diverse fields and tribology related research activities have seen immense growth during the last *** review takes stock of the recent advances in research pertaining to different aspects of tribology within the last 2 to 3 *** aspects of tribology that have been reviewed including lubrication,wear and surface engineering,biotribology,high tem perature tribology,and computational *** review attempts to highlight recent research and also presents future outlook pertaining to these *** may however be noted that there are limitations of this *** of the most important of these is that tribology being a highly multidisciplinary field,the research results are widely spread across various disciplines and there can be omissions because of ***,the topics dealt with in the field of tribology include only some of the salient topics(such as lubrication,wear,surface engineering,biotribology,high tem perature tribology,and computational tribology)but there are many more aspects of tribology that have not been covered in this *** these limitations it is hoped that such a review will bring the most recent salient research in focus and will be beneficial for the growing community of tribology researchers.

关键词： tribology biotribology lubrication superlubricity friction wear,surface engineering

Predicting Standardized Precipitation Evapotranspiration Index for Fada N’Gourma by 2050 Using CMPI-6 Outputs under SSPs Scenarios

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Journal of Environmental Science and Engineering(A) 2025年第1期14卷 31-42页

作者： Tog-Noma Patricia Emma Bontogho andrew Ireson Dominic Boateng-Gyambiby Abdullahi Dini High Institute of Sustainable Development University Yembila Abdoulaye ToguyéniBP 54 Fada N’GourmaBurkina Faso Global Institute for Water Security School of Environment and SustainabilityUniversity of SaskatchewanSaskatoonCanada Department of Agricultural and Resource Economics University of Energy and Natural Resourcescity P.O.Box 214SunyaniGhana

Extreme weather events,such as floods and droughts,are expected to rise significantly worldwide as a result of climate *** future drought patterns is therefore a key approach for elaborating anticipatory water resources management responses to climate *** this paper,future meteorological drought conditions are investigated based on the SPEI(Standardised Precipitation Evapotranspiration Index).This study makes use of observed and projected *** simulated data were retrieved from the CMIP6(Coupled Model Intercomparison Project Phase 6)over the period 2025-2050,and the Delta change method was adopted to remove the bias in the *** SPEI at various scales has been estimated under four future scenarios(SSP1-2.6,SSP2-4.5,SSP3-7.0 and SSP5-8.5).The trend analysis of the projected SPEI was performed at p<0.05 using the MMK(Modified Mann-Kendall)test in order to detect the statistically significant trend of the drought against the null hypothesis of no *** show large variability in the magnitude of drought in the past and *** on SPEI at 24 months accumulation,the result shows that under SSP1-2.6,the basin will experience a wet period during the first decade(SPEI=0.60),the second decade will be dry(SPEI24=-0.43).The remaining years will be also dry(SPEI=-0.34).Under SSP2-4.5,SSP3-7.0 and SSP5-8.5 scenarios,the district will experience a wet period during the first two decades with SPEI ranging from 0.38 to *** wet period will be followed by a dry period under these scenarios ranging from-0.14 ***,under SSPs scenarios,two main periods characterized by a rainfall recovery spanning from followed by a moderately prolonged drought are identified within the study *** findings of this study may provide valuable information for developing proactive measures to reduce water insecurity in Fada N’Gourma through effective drought mitigation.

关键词： Climate change drought index CMPI-6 Fada N’Gourma SSP-scenarios.