Results 101 to 110 of about 3,426,584 (292)

Experimental study on the effect of spray evaporative condensation on air conditioning performance

Xi'an Gongcheng Daxue xuebao
In order to reduce the energy consumption of air conditioning units in high-temperature working conditions and improve the energy efficiency ratio of the units, this study proposes to apply the spray evaporative condensation technology to air ...
HUANG Xiang, HU Jian, SU Lin, CHU Junjie, YAN Libo, YANG Liu, WANG Xin   +6 more
doaj   +1 more source

Investigation of intake air temperature effect on co-combustion characteristics of NH₃/gasoline in naturally aspirated high compression ratio engine with sub-chamber. [PDF]

Sci Rep, 2023
Yilmaz E, Ichiyanagi M, Zheng Q, Guo B, Aratake N, Kodaka M, Shiraishi H, Okada T, Suzuki T.   +8 more
europepmc   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

ADVANTAGES AND DRAWBACKS OF TWO-STEP APPROACH TO PROVIDING DESIRED PARAMETERS IN LOSSY IMAGE COMPRESSION

Сучасні інформаційні системи
The object of the study is the process of lossy image compression. The subject of the study is the two-step approach to providing desired parameters (quality and compression ratio) for different coders. The goals of the study are to review advantages of
Fangfang Li , Sergey Abramov , Ihor Dohtiev , Vladimir Lukin   +3 more
doaj   +1 more source

High Compression Ratio Active Pre-chamber Single-Cylinder Gasoline Engine with 50% Gross Indicated Thermal Efficiency. [PDF]

ACS Omega, 2023
Zhan W, Chen H, Du J, Wang B, Xie F, Xie F, Li Y.   +6 more
europepmc   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

Advanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares, Nadège Bouchonneau, Christian Jochum, Donald Radford   +3 more
wiley   +1 more source

Prediction of Diesel Engine Performance and Emissions Under Variations in Backpressure, Load, and Compression Ratio Using an Artificial Neural Network

Applied Sciences
Excessive exhaust backpressure (EBP) in modern diesel engines disrupts gas exchange, increases residual gas fraction (RGF), and reduces combustion efficiency.
Nhlanhla Khanyi, Freddie Inambao, Riaan Stopforth   +2 more
doaj   +1 more source

Investigation in PO blending and compression ratio on engine performance and gas emissions including environmental health risk assessment and economic analysis. [PDF]

Environ Sci Pollut Res Int, 2023
Alawa B, Chakma S.
europepmc   +1 more source

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

Advanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch, Maximilian Holland, Klaus Drechsler, Johannes Schilp   +3 more
wiley   +1 more source

Effect of using spirulina algae methyl ester on the performance of a diesel engine with changing compression ratio: an experimental investigation. [PDF]

Sci Rep, 2022
Al-Dawody MF, Maki DF, Al-Farhany K, Flayyih MA, Jamshed W, Tag El Din ESM, Raizah Z.   +6 more
europepmc   +1 more source