Results 41 to 50 of about 93,173 (332)

Numerical study on subcooled water jet impingement cooling on superheated surfaces

open access: yesCase Studies in Thermal Engineering, 2022
The present study aims to numerically investigate the rapid cooling heat transfer characteristics of the superheated solid surfaces when the subcooled water jet impinges.
Joo Hyun Moon   +3 more
doaj   +1 more source

Effect of stagnation temperature on supersonic flow parameters application for air in nozzles [PDF]

open access: yesThe Aeronautical Journal, 2007
AbstractWhen the stagnation temperature of a perfect gas increases, the specific heats and their ratio do not remain constant and start to vary with the temperature. The gas remains perfect; its state
T. Zebbiche, Z. Youbi
openaire   +1 more source

Ultrafast Adhesion/Friction Bidirectionally Switchable Control by Vibration

open access: yesAdvanced Functional Materials, EarlyView.
Bioinspired gradient smooth architectures enable vibration‐switchable adhesion/friction with 62.02 kPa adhesion strength, 131.57 kPa shear strength, tilt angles ≥ 3°, roughness ≥ Ra 0.8 µm, 400 Hz antivibration robustness, and dual‐mode control. The synergy of geometry optimization and vibration modulation tuning bridges multidomain adaptability and ...
Jian Chen   +10 more
wiley   +1 more source

Magnetohydrodynamic axisymmetric flow of Casson fluid with variable thermal conductivity and free stream

open access: yesAlexandria Engineering Journal, 2018
This article examines Joule heating and viscous dissipation effects in axisymmetric stagnation point flow of Casson fluid with temperature dependent thermal conductivity.
M. Nawaz, Rahila Naz, M. Awais
doaj   +1 more source

Computer program determines gas flow rates in piping systems [PDF]

open access: yes, 1966
Computer program calculates the steady state flow characteristics of an ideal compressible gas in a complex piping system. The program calculates the stagnation and total temperature, static and total pressure, loss factor, and forces on each element in ...
Franke, R.
core   +1 more source

Toward Scalable Solutions for Silver‐Based Gas Diffusion Electrode Fabrication for the Electrochemical Conversion of CO2 – A Perspective

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the preparation techniques for silver‐based gas diffusion electrodes used for the electrochemical reduction of carbon dioxide (eCO2R) are systematically reviewed and compared with respect to their scalability. In addition, physics‐based and data‐driven modeling approaches are discussed, and a perspective is given on how modeling can aid ...
Simon Emken   +6 more
wiley   +1 more source

Influence of heterogeneous-homogeneous reactions in thermally stratified stagnation point flow of an Oldroyd-B fluid

open access: yesResults in Physics, 2016
This communication explores the effects of homogeneous-heterogeneous reactions in thermally stratified mixed convection flow of an Oldroyd-B fluid. Flow situation is addressed when the diffusion coefficients of the reactant and auto catalyst are equal ...
T. Hayat, Zakir Hussain, A. Alsaedi
doaj   +1 more source

Cell Calcification Models and Their Implications for Medicine and Biomaterial Research

open access: yesAdvanced Healthcare Materials, EarlyView.
Calcification, is the process by which the tissues containing minerals are formed, occurring during normal physiological processes, or in pathological conditions. Here, it is aimed to give a comprehensive overview of the range of cell models available, and the approaches taken by these models, highlighting when and how methodological divergences arise,
Luke Hunter   +5 more
wiley   +1 more source

Beyond Conventional Cooling: Advanced Micro/Nanostructures for Managing Extreme Heat Flux

open access: yesAdvanced Materials, EarlyView.
This review examines the design, application, and manufacturing of biomimetic or engineered micro/nanostructures for managing high heat‐flux in multi‐level electronics by enhancing conductive, convective, phase‐changing, and radiative heat transfer mechanisms, highlighting their potential for efficient, targeted thermal management, and future prospects.
Yuankun Zhang   +7 more
wiley   +1 more source

Transistor‐Level Activation Functions via Two‐Gate Designs: From Analog Sigmoid and Gaussian Control to Real‐Time Hardware Demonstrations

open access: yesAdvanced Materials, EarlyView.
Screen gate‐based transistors are presented, enabling tunable analog sigmoid and Gaussian activations. The SA‐transistor improves MRI classification accuracy, while the GA‐transistor supports precise Gaussian kernel tuning for forecasting. Both functions are implemented in a single device, offering compact, energy‐efficient analog AI processing ...
Junhyung Cho   +9 more
wiley   +1 more source

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