Results 91 to 100 of about 489,650 (137)
ABSTRACT Public consultations are a cornerstone of democratic policymaking, yet the sheer volume and heterogeneity of submissions often overwhelm traditional analysis. Emerging large language models (LLMs) offer new opportunities for making sense of such data, but their performance in contexts with high linguistic and technical diversity remains ...
Edgar Mathevet, Lauriane Cailleux
wiley +1 more source
本发明提供材料表面局部光谱测量装置及测量方法,属于半导体测试技术领域。装置包括反应腔、光源和光谱仪,光源和光谱仪均与反应腔相连,反应腔又包括第一真空腔、第二真空腔、真空阀门、真空传递装置、聚焦离子束刻蚀装置和光路耦合装置;其方法步骤为:将待测样品置于样品台上;关闭真空阀;将探针插入至第一针尖台;去除探针的污染物和氧化物;对探针刻蚀,形成天线结构;打开真空阀;将探针从第一针尖台传递并插入至第二针尖台;关闭真空阀;测量待测样品的表面光谱。本发明解决了针尖在刻蚀加工和使用之间的传递过程中的表面的污染和氧化 ...
钟海舰 +8 more
core
The Problem With Problem Load: Reconceptualizing Load in the Multiple Streams Framework
ABSTRACT What happens when policymaking systems buckle under pressure, disrupting consensus and stalling decision‐making? Drawing on the Multiple Streams Framework, we show that the existing concept capturing this stress, Problem Load, has been both misinterpreted and overstretched.
Dana A. Dolan, Nikolaos Zahariadis
wiley +1 more source
星载转动部件的角动量输出测量是卫星姿态控制系统设计的必 要环节,该文介绍了一种利用单轴气浮平台测量转动部件角动量输出的系统和方法。通过对系统转动惯量和角速度的测量,得到转动部件输出角动量的大小及变化, 最后以实例形式给出测试步骤、数据处理方法、测试结果及精度分析。与直接测量法相比,该方法测试设备简单,测量精度高,测量误差小于5%,尤其对具有多转 动单元、多自由度转动部件的耦合测量优势明显,具有较高的工程应用价值。
薛勋 +5 more
core
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
wiley +1 more source
为了克服用共面探针测量光探测器芯片的高频特性对电极结构的限制,提出了一种精确测量光探测器芯片的阻抗和频率响应的新方法.对于任意电极结构的探测器芯片,首先把芯片与测试夹具连接,通过一系列的校准和测量,可以得到夹具的S参数,进而利用微波理论扣除整个测试夹具的影响,得到探测器芯片的S参数,计算出光探测器的阻抗和频率响应特性.用该方法对P极和N极共面的光探测器芯片的阻抗和频率响应特性进行了测量,并与直接用微波探针测量的结果相比较,验证了该方法在50 MHz~16 ...
刘宇, 张胜利, 祝宁华, 孙建伟
core
ABSTRACT Aqueous Zn‐ion batteries (AZIBs) are expected to become one of the most promising candidates for large‐scale energy storage, but are impeded by uncontrollable dendrite growth and parasitic reactions. In this study, we propose a simple mechanical shot‐peening (SP) approach for restructuring commercial Zn foils into highly exposed (002)‐textured
Xu Ma +7 more
wiley +1 more source
Ultrasonic Vibration Assisted Laser Processing: A Hybrid Paradigm for Extreme Surface Enhancement
ABSTRACT Traditional laser processing techniques offer many advantages, but they often encounter limitations such as heat‐affected zones, recast layers, residual tensile stresses, and poor surface finish. The integration of ultrasonic vibration (UV) presents a promising hybrid approach to overcome these challenges by introducing beneficial effects like
Aziz Ul Hassan Mohsan +6 more
wiley +1 more source
ABSTRACT Zinc‐based biodegradable metals are promising implant materials, and additive manufacturing offers a powerful route for their patient‐specific fabrication. However, process‐induced surface defects can accelerate degradation and compromise biocompatibility, rendering post‐processing essential.
Yixuan Shi +13 more
wiley +1 more source
对涡轮流量传感器进行了理论分析,给出了涡轮流量计仪表常数的计算方法,讨论了获得较大固有仪表常数K_0时涡轮传感器结构参数(如叶片数、涡轮半径、口径等)的优化组合问题,通过多相流动实验,总结出K_0与流动密度之间的实验关系,由此给出用涡轮流量计测量多相流的半理论半经验公式,并在油井多相流量测量中得到了实际应用,符合较好。对涡轮流量传感器进行了理论分析,给出了涡轮流量计仪表常数的计算方法,讨论了获得较大固有仪表常数K_0时涡轮传感器结构参数(如叶片数、涡轮半径、口径等)的优化组合问题,通过多相流动实验 ...
田树祥 +4 more
core +1 more source

