Results 81 to 90 of about 1,323,706 (291)

VHF adaptive antenna using a rear defogger [PDF]

open access: yes, 2012
This thesis presented the design of an adaptive bearnforming antenna using a rear defogger. The main purpose of this project is to develop the vehicular adaptive antenna for VHF band, which does not require the installation space, does not spoil the
Abdullah, Noorsaliza
core  

Explaining the Origin of Negative Poisson's Ratio in Amorphous Networks With Machine Learning

open access: yesAdvanced Intelligent Discovery, EarlyView.
This review summarizes how machine learning (ML) breaks the “vicious cycle” in designing auxetic amorphous networks. By transitioning from traditional “black‐box” optimization to an interpretable “AI‐Physics” closed‐loop paradigm, ML is shown to not only discover highly optimized structures—such as all‐convex polygon networks—but also unveil hidden ...
Shengyu Lu, Xiangying Shen
wiley   +1 more source

THE WAYS OF INCREASE OF EFFICIENCY OF FOAM CONCRETE

open access: yesВестник Дагестанского государственного технического университета: Технические науки, 2016
Aim. The analysis of the using common wall materials for a given heat resistance is presented in the article.Methods. In the result of thermal calculation of multilayer walls is shown that to ensure the required resistance of heat transfer is more ...
Sh. G. Jalalov, K. A. Otsokov
doaj   +1 more source

Emerging research directions in nanoparticle‐based foam control for bioprocessing: a bibliometric approach

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract Overfoaming remains a critical challenge in industrial bioprocesses, compromising mass transfer, operational stability, and downstream efficiency in bioreactors and wastewater treatment systems. This study provides a bibliometric and scientometric assessment of nanoparticle‐enabled foam control to map technological trends and identify research
Antonio Átila Menezes Ferreira   +6 more
wiley   +1 more source

Engineering Biochar‐Derived Functional Materials for High‐Performance Supercapacitors: Design Principles, Mechanisms, and Scalable Strategies

open access: yesCarbon Energy, EarlyView.
ABSTRACT Biochar has emerged as a useful and adaptable source of carbon for supercapacitor electrodes. Its value comes from the way biomass chemistry, thermal conversion, and activation conditions shape the resulting pore network, surface groups, and degree of carbon ordering.
Soumen Mandal   +6 more
wiley   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang   +6 more
wiley   +1 more source

Study on Quasi Static and Dynamic Mechanical Properties of Chemical Foaming Concrete

open access: yesChemical Engineering Transactions, 2017
Chemical foaming concrete is a kind of new building material. In this paper, the quasi-static conditions of foam concrete and dynamic mechanical properties under impact dynamic conditions are studied.
Changchun Shi   +2 more
doaj   +1 more source

PENGARUH VARIASI TINGGI BALOK PADA PROFIL KANAL (C) FERRO FOAM CONCRETE DENGAN PENAMBAHAN BONGKAHAN CANGKANG SAWIT AKIBAT BEBAN LENTUR [PDF]

open access: yes, 2015
Pada umumnya konstruksi gelagar jembatan terbuat dari kayu, baja, dan beton bertulang konvensional, namun dalam penggunaannya material tersebut memiliki keterbatasan.
Muhammad Azwar
core  

Carbon Dots: An Emerging Frontier for Green and Sustainable Civil Engineering Materials

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Traditional civil engineering materials (CE materials) are usually involved with high‐energy consumption during manufacturing, significant maintenance costs, and substantial environmental impacts throughout their life cycles. The progress of nanotechnology is catalyzing a green and sustainable transformation within the field.
Weiwen Hao   +5 more
wiley   +1 more source

Dynamic properties of CO2-cured foam concrete at different loading rates: Effect of the foam admixtures and addition of polypropylene fiber

open access: yesFrontiers in Materials
This paper investigated the dynamic mechanical properties of CO2-cured foam concrete under varying conditions, focusing on the effects of foam admixture and fiber reinforcement.
Yunlin Liu   +5 more
doaj   +1 more source

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