Results 21 to 30 of about 678 (227)

Engineering assessment of refrigerant recovery and emission control in automotive air-conditioning maintenance and end-of-life vehicle management [PDF]

E3S Web of Conferences
Refrigerant emissions from passenger car mobile air-conditioning (MAC) servicing are an important but poorly quantified source of high-GWP greenhouse gases. This study collaborated with H Company’s Guangzhou workshop to develop a standardized refrigerant
Wang Jia, Meng Qingyao, Manuel Prieto G., Wang Yin, Ren Yingli, Zhu Yueyan   +5 more
doaj   +1 more source

EphB1‐Mediated Transient Blood‐Brain Barrier Opening Facilitates a Ferritin‐Based Nanotherapeutic for Alzheimer's Disease

Advanced Science, EarlyView.
We constructed a brain‐targeted AFn‐DPZ nanodrug delivery system and identified EphB1 as its receptor on the blood‐brain barrier (BBB). This system facilitates drug transport across the BBB and thereby ameliorates cognitive impairment in Alzheimer's disease.
Shilin Wen, Jingjing Gao, Zhixian Wang, Qiumin Ma, Xiao‐Ling Xu, Jianer Chen   +5 more
wiley   +1 more source

Novel Radiation-Adjustable Heating Terminal Based on Flat Heat Pipe Combined with Air Source Heat Pump

Engineering, 2023
The electrification of building heating is an effective way to meet the global carbon target. As a clean and sustainable electrified heating technology, air-source heat pumps (ASHPs) are widely used in areas lacking central heating.
Yifan Wu, Hongli Sun, Mengfan Duan, Borong Lin, Hengxin Zhao, Chaohung Liu   +5 more
doaj   +1 more source

Design and operating principle of a mechanical device for signaling refrigerating leakage from the compressor system of a working household refrigerator

Refrigeration Technology, 2023
The root cause of refrigerant leaking from a household refrigerator’s compressor system can be traced to micro- and macro-damage within the sealed system. To determine and prevent further leakage, it is necessary to equip the refrigerator with an alarm device featuring a thermal balloon on the exterior of the freezer evaporator.
Mikhail V. Demin, Ruslan V. Bryushkov, Victoria E. Levkina   +2 more
openaire   +1 more source

Efficient Adsorption‐Based Direct Air Capture Via Triply Periodic Minimal Surface Architectures

Advanced Science, EarlyView.
Architected triply periodic minimal surface (TPMS) contactors reshape direct air capture by replacing straight‐channel diffusion limits with convection‐enhanced CO2 transport. Chaotic advection thins boundary layers and exposes fast adsorption sites, enabling 70%–75% more fast sites, 114% higher productivity, and 51.8% lower energy consumption than ...
Qingyang Shao, Zhuozhen Gan, Chengcheng Long, Man Zhang, Yihe Miao, Yuehui Li, Xuancan Zhu   +6 more
wiley   +1 more source

Differential Tissue‐Coupled Powering for Battery‐Free Injectable Electroceuticals

Advanced Science, EarlyView.
A thread‐like injectable neural stimulator is powered through differential tissue‐coupled powering (DTCP), which harvests RF‐frequency tissue potentials with an elongated receiver while preserving a injectable cross‐section. The system integrates an ASIC, stimulation electrodes, and a portable transmitter, enabling wireless peripheral nerve stimulation,
Han Wu, Sultan Mahmud, Mali Halac, Asif Iftekhar Omi, Domenica Sofia Baez Rodas, Jeremiasz Dados, Chaojun Cheng, Anyu Jiang, Cameron Wallace, Anvi Singh, Erin Patrick, Baibhab Chatterjee, Shriya Srinivasan, Adam Khalifa   +13 more
wiley   +1 more source

Survey and Review of Refrigerant Leakage Sources and Solutions in Malaysian Refrigeration and Air Conditioning (RAC) Systems

Evergreen
Leakage of refrigerants is one of the most common faults in refrigeration, air conditioning, and Heat Pump (RACHP) systems. Knowledge of leakage sources is critical for minimizing the leakage of high global warming potential refrigerants and the safe application of flammable refrigerants.
Muradi, Salman, Shazwin Mat Taib, Saman, Norasikin, Nurfarhain Mohamed Rusli, Nurul Nazleatul Najiha Mohd Nazif   +4 more
openaire   +3 more sources

Estimation of greenhouse gas mitigation potential from refrigerant switching and energy efficiency improvement in Thai air conditioners

Energy Reports, 2023
Thailand is an important manufacturing and export center of Refrigeration and Air Conditioning (RAC), especially wall-typed air conditioners (ACs). Environmentally friendly refrigerant such as Hydrofluorocarbons (HFCs) have become the future substitute ...
Waranya Thepsaskul, Wongkot Wongsapai, Rongphet Bunchuaidee, Neeracha Tridech, Pattaraporn Juprasert, Chaichan Ritkrerkkrai, Sopit Daroon, Phitsinee Muangjai, Varoon Raksakulkarn   +8 more
doaj   +1 more source

Blood Cell‐Camouflaged Liquid Metal Nanoconjugates Orchestrate Treg Depletion and STING‐Amplified Photothermal Immunity for Metastatic Triple‐Negative Breast Cancer Therapy

Advanced Science, EarlyView.
Whole‐blood biomimetic engineering transforms liquid metal nanoparticles into a tripartite immunotherapeutic platform that orchestrates regulatory T‐cell depletion, photothermal‐induced immunogenic cell death, and activation of the stimulator of interferon genes pathway.
Nina Sang, Eijiro Miyako
wiley   +1 more source

Research on Carbon Emission of Household Air Conditioners Based on DLCA

Zhileng xuebao, 2023
In this study, we utilize the life cycle assessment method to examine the relationship between the change in the energy efficiency ratio of air conditioners and the energy structure over the course of its operational years.
Cui Zhiheng, Yang Changzhi
doaj