Results 11 to 20 of about 388,017 (131)
, 2011 本文首次用实验手段研究高温燃气自由喷流（热喷流）、燃气喷流/主流干扰流对气动热环境的影响。实验主流由脉冲风洞提供，燃气喷流用氢氧燃烧驱动路德维希管（Ludwieg-tube）的方式产生。利用脉冲风洞驱动段压力信号自动控制热气源的产生以保证风洞主流与燃气喷流同步，利用氢气、氮气和氧气的不同比例实现燃气喷流的热力学相似。实验技术上完成了高温燃气喷流系统的参数采集与系统状态标定；实验内容上开展了压缩拐角平板模型的气动热实验研究，通过实验比较了只有主流流场、只有热喷流流场和既有主流流场又有热喷流流场（即干扰流场）
王发民, 唐贵明, 陈雪冬
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, 2001 流态是描述气液两相流动体系的基本要素之一。正确判断流态对于气液两相流的研究和工程应用都有重要意义，因而它一直是两相流研究领域的重要方面。本文在对国内外研究现状进行总结的基础上，进行了以下两方面的研究：（1）基于管道压力和管段压力降动态信号处理的气液两相管流流态在线识别的方法研究；（2）非牛顿流体气液两相管流的流态特性。主要的工作以及结果如下：1）对气液两相流流态的定义、转换准则、在线识别方法进行了比较详尽的综述和评议。2）研究了利用管段压降动态信号的功率谱密度分布（PSD）提取流态特征的方法 ...
劳力云
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, 1987 地处丘陵山区的湖南省某电厂,由于受到复杂的山区气流场和气象条件的控制,电厂烟囱排出的烟气,受过山气流大涡旋运动流场的影啊,严重的污染大片农田及危害人体健康。本文通过利用分层流盐水槽所进行该电厂地形条件的模拟实验。详细的介绍了实验方法以及在中性与稳定层结条件下的流场特性和由于不同流场条件所造成烟气的运动规律。对不同的排烟高度所得到的不同烟气下沉距离进行了比较。从而提出了减少排烟污染的合理烟囱高度和位置。经与现场实测的结果对比 ...
呼和敖德 +5 more
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Intact coastal nursery rearing amid climate‐driven phenological shifts in threatened salmon
Conservation Biology, EarlyView.Abstract Literature linking phenology to climate has proliferated in recent decades and shows that climate change has reorganized seasonal opportunities worldwide. However, this literature often quantifies changes in point measures of timing (e.g., beginnings and peaks) without context about duration (e.g., rearing season length) or performance (e.g ...
Stuart H. Munsch +8 more
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Wearable sweat sensors face persistent trade‐offs between multiplexed detection, signal stability, and wearing comfort. Here, we present a Janus electronic skin (e‐skin) with dual‐mode functionality, offering both thermal and moisture comfort.
Zhi‐Mei Mu +12 more
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Inverse Thermal Softening Behavior in a High‐Entropy Alloy Under Various Strain Rates
Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Although face‐centered cubic high‐entropy alloys (HEAs) have received extensive attention and in‐depth research, most existing studies focus on single temperature or strain rate conditions, lacking systematic investigations into deformation mechanisms under extreme thermomechanical coupling environments.
Zhi Wang +6 more
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, 2014 本发明公开一种旋流气浮油水分离装置及气浮发生器，其中，所述旋流气浮油水分离装置，包括：一根或多根柱型旋流管以及与所述柱型旋流管相连的立式筒型气浮装置，其中：所述柱型旋流管包括旋流腔体、水平切向进液管、溢流出口管和底流出口管；所述立式筒型气浮装置包括气浮筒体、水平侧面进液管、清水出口管、气体出口管、油出口管、液体螺旋导流片和气浮发生器。本发明综合利用了高速旋流原理和气泡吸附作用，整个流程处于流动中进行。本发明适合于陆上和海上采油平台使用 ...
李锋 +7 more
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Rare Metals, Volume 45, Issue 10, October 2026.ABSTRACT Photocatalytic hydrogen peroxide (H2O2) production from water and oxygen driven by solar energy represents a highly promising green and sustainable strategy. Herein, lignin‐derived carbon quantum dots (LCDs) were strategically introduced at the heterojunction between a Bi‐based metal organic framework (Bi‐MOF) and ZnIn2S4 (ZIS).
Wanpeng Sun +8 more
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Green Hydrogen in Brazilian Media: Dominant Narratives and Missing Dimensions of the Energy Trilemma
Politics &Policy, Volume 54, Issue 5, October 2026.ABSTRACT Media discourses help shape the visibility and legitimacy of energy transition pathways in the public sphere. This study examines how Brazilian mainstream newspapers framed green hydrogen and assesses the alignment of these narratives with the energy trilemma: energy security, environmental sustainability, and social accessibility. We analyzed
Flávia Mendes de Almeida Collaço +3 more
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