Results 21 to 30 of about 15,012 (162)

High‐Throughput Development of Advanced Metallic Glasses via Compositionally Graded Thin‐Film Combinatorial Strategy

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Advanced metallic glasses, leveraging their ultrahigh strength, excellent corrosion resistance, superior soft magnetic properties and good biocompatibility, have gradually become indispensable strategic cornerstones in critical fields such as aerospace, electronic information and energy power. This unique combination of properties enables them
Yizhou Liu   +11 more
wiley   +1 more source

含可更换剪切型耗能梁段的钢框筒结构抗震性能研究

open access: yesJianzhu Gangjiegou Jinzhan, 2020
地震作用下,传统钢框筒结构难以实现强柱弱梁的设计理念,大震下柱端往往先于梁端出现塑性铰。针对这一问题提出了含可更换剪切型耗能梁段的钢框筒结构,即在裙梁中设置可更换的剪切型耗能梁段,大震作用下结构利用剪切型耗能梁段良好的弹塑性变形能力进行耗能,其余构件仍处于弹性状态或部分发展塑性。设计了一组算例结构,包括传统钢框筒结构和含可更换剪切型耗能梁段的钢框筒结构,采用SAP2000有限元分析软件对算例结构进行了弹性和弹塑性地震反应分析 ...
程倩倩, 连鸣, 苏明周, 张浩
doaj  

预应力钢绞线-滑移连接-耗能段组合体抗震性能研究

open access: yesJianzhu Gangjiegou Jinzhan, 2022
地震作用下,减小耗能段的残余变形和优化自复位结构的耗能机制,是提高建筑结构震后功能恢复能力与抗震性能的重要方式之一。基于预应力钢绞线、滑移连接和短剪切形耗能段的力学性能,提出一种抗震性能良好的组合体。为探究组合体的抗震性能,采用校正的有限元分析方法对5个有限元模型进行分析,得到了组合体分析模型的滞回性能、自复位性能、耗能能力和等效塑性应变等抗震指标。有限元分析结果表明:组合体具有良好的承载力、耗能能力和自复位性能;组合体分析模型的损伤集中在可更换的耗能段上 ...
熊墨强   +3 more
doaj  

In Situ Preparation of Ti2Ni/NiTi Dual‐Phase Alloy With High Wear Resistance and Damping Performance by Additive Manufacturing

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT Many metallic components are frequently subjected to coupled environments of friction and vibration, stemming from interfacial contact and relative motion between mating parts or external stimuli. Consequently, it is imperative for these components to exhibit a synergy of high wear resistance and superior damping properties.
Ze Pu   +12 more
wiley   +1 more source

焦炉化产品回收过程能耗控制与节能研究

open access: yes工程建设
在我国持续推进双碳战略与工业绿色低碳转型的宏观背景下,焦化行业作为传统的高能耗、高排放领域,其节能降耗工作不仅具有重要的环境效益,同时也具备显著的经济价值。文中围绕焦炉化产品回收这一关键工序,系统探讨了其能耗现状、主要影响因素以及可行的节能路径。通过对近年来特别是2022至2025年间行业相关能耗数据、技术进展与管理实践的系统梳理,指出该工序能耗主要集中于红焦显热、荒煤气物理热以及工艺蒸汽消耗等环节。
馨 刘   +7 more
semanticscholar   +1 more source

Self‐Powered Broad‐Spectrum UV Photodetectors Based on TiO2/Graphene/Acid‐Doped Polyaniline Heterojunction

open access: yesRare Metals, Volume 45, Issue 8, August 2026.
ABSTRACT The development of high‐performance, self‐powered ultraviolet photodetectors (UVPDs) is crucial for the practical application of low‐power‐consumption optoelectronic devices. However, achieving both broad‐spectrum detection and high sensitivity remains a challenge.
Ping‐Xian Feng   +6 more
wiley   +1 more source

能源互联网背景下智能制造车间的能耗优化与信息化管理研究

open access: yes计算机与自主智能研究进展
在“双碳”目标与能源互联网快速发展的背景下,智能制造车间作为制造业核心单元,能耗高、管理粗放的问题凸显。能源互联网融合信息技术与能源技术,为车间能耗优化和信息化管理提供新路径。本文聚焦此背景,分析车间能耗现状,探究能源互联网技术应用,提出优化策略与管理体系,旨在为制造业绿色高效发展提供参考。
常玺 徐
semanticscholar   +1 more source

Inferring alternative ecosystem states with field survey data

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 8, Page 2256-2276, August 2026.
Abstract Many ecosystems potentially exhibit alternative stable states, where distinct states can coexist under identical environmental conditions. While simulation models have generated key hypotheses in alternative stable states theory, they often rely on scale‐free parameters disconnected from real ecosystems.
Ning Chen   +10 more
wiley   +1 more source

带弯剪屈服耗能梁段的K形偏心支撑钢框架滞回性能研究

open access: yesJianzhu Gangjiegou Jinzhan, 2022
基于削弱耗能梁截面尺寸的原理,提出了一种新型带弯剪屈服耗能梁段的K形偏心支撑钢框架结构。为验证其抗震性能,完成了1个1∶2.6缩尺的单层、单榀、单跨模型的拟静力试验。结果表明,试验模型的塑性变形基本局限在耗能梁段上,且主要通过耗能梁端部上、下翼缘和中部的腹板耗散能量,试件表现出较好的耗能能力和延性。为进一步研究其抗震性能,在试验模型的基础上改变了中部剪切型耗能梁(简写为SL)的长度lm,采用ABAQUS有限元软件建立了8个数值模型并对之进行了滞回性能分析,分析了滞回曲线、承载力、刚度及耗能能力等随lm ...
陈世玺   +5 more
doaj  

暖通空调系统在建筑能耗管理中的智能化应用

open access: yes工程施工技术
在全球能源供应日益紧张以及建筑能耗持续攀升的形势下,暖通空调系统(HVAC)于建筑能耗管理方面所起到的作用变得愈发重要。文中着重围绕暖通空调系统的智能化应用展开分析,较为系统地剖析了其在建筑能耗优化环节当中的核心技术,像智能感知与数据采集技术、智能控制与算法优化技术、数据分析以及能耗预测模型,还有云平台与系统集成技术等。与此结合实际的应用来深入探讨智能能耗管理系统的具体设计与实现方式、动态运行优化的相关策略以及节能效果的评估情况。研究得出,智能化技术一方面能够切实提升暖通空调系统的运行效率以及能源利用率,
佳慧 徐
semanticscholar   +1 more source

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