Results 281 to 290 of about 20,687,688 (394)

Performance Investigation of Eco‐Friendly Refrigerant Mixtures as an Alternative to R134a in Vapour‐Compression Refrigeration System

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT The growing impacts of climate change and energy scarcity demand environmentally sustainable refrigeration solutions. This study investigates eco‐friendly refrigerants (R152a, R290 and R600a) and their optimized ternary mixture as alternatives to R134a. Four blend compositions were analysed using experimental testing and REFPROP 10.0 modelling
M. Periyasamy, P. Senthilkumar
wiley   +1 more source

Stakeholder perception of quality management of investigator-initiated clinical trials. [PDF]

open access: yesBMC Med Ethics
Li W   +7 more
europepmc   +1 more source

The Status and Emerging Developments in Laboratory Animal Science in Asia since 9th AFLAS Congress (2023) until 10th AFLAS Congress (2025)

open access: yes
Animal Models and Experimental Medicine, EarlyView.
Asian Federation of Laboratory Animal Science Associations (AFLAS)
wiley   +1 more source

Mechanism of Hydrogen Sulfide Generation and Prevention Strategies in Oil and Gas Fields: A Case Study of the Sickle Bay Operation Area

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT To address the persistent exceedance of hydrogen sulfide (H2S) concentrations and the limited effectiveness of existing treatments in the Sickle Bay oil production area, this study deeply analyzes the mechanism of H2S generation in the Sickle Bay oil production area and proposes targeted prevention and control strategies. The results show that
Bo Lei   +7 more
wiley   +1 more source

Incorporation of MoO3 Nanoparticles Into Polypropylene Fibers via Melt Spinning: Investigation of Mechanical, Thermal, and Chromic Properties

open access: yesJournal of Applied Polymer Science, EarlyView.
Pure PP and PP/MoO3 filaments produced by melt spinning. ABSTRACT Polypropylene (PP) composite fibers containing 0.10, 0.20, and 0.50 wt% molybdenum oxide (MoO3) nanoparticles were produced via melt spinning. In the present study, the effect of this addition on the mechanical, thermal, and chromic properties of the fibers was investigated.
Raphael Borges Magalhães Bergamini   +5 more
wiley   +1 more source

Tobacco cessation strategies in military personnel: A meta-analysis of randomized trials. [PDF]

open access: yesPrev Med Rep
Heshmati J   +5 more
europepmc   +1 more source

Influence of Acrylonitrile Content on Processing, Morphology, Thermal Behavior, and Mechanical Properties of PA/NBR Thermoplastic Vulcanizates

open access: yesJournal of Applied Polymer Science, EarlyView.
Influence of acrylonitrile (ACN) content on the processing behavior and morphological development of PA/NBR thermoplastic vulcanizates. Torque‐time profiles, SEM, and SEM/AFM images show that an intermediate ACN level (38%) promotes improved phase dispersion and morphological uniformity, especially with increased processing time, resulting in the most ...
André Luís dos Santos da Silva   +4 more
wiley   +1 more source

Prehospital emergency services: expectations of patients and companions. [PDF]

open access: yesInt J Emerg Med
Khani J   +4 more
europepmc   +1 more source

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