Results 71 to 80 of about 42,237 (197)
Photoreversible Polyurea Actuators With Spatiotemporal Control and Adaptive Mechanics
A light–thermal responsive polyurea network incorporating reversibly dimerizable anthracene units enables spatiotemporal modulation of cross‐linking density and nearly 400‐fold stiffness tuning. Integrating programmable anisotropy, photopatterning, self‐healing, and photowelding within a single framework, this bioinspired “one network–multifunction ...
Zhiwen Song +7 more
wiley +1 more source
基于ENVISAT-1/GOMOS(Global Ozone Monitoring by Occultation of Stars)和TIMED/SABER (Sounding of the Atmosphere using Broadband Emission Radiometry)卫星的臭氧廓线数据结合模式HAMMONIA (Hamburg Model of the Neutral and Ionized Atmosphere)对热带低纬度地区(20°S-20°N)中间层(60~110 km高度 ...
柳 丹 +6 more
doaj +1 more source
Modeling and Output Optimization of Triboelectric Microphone for Acoustic Energy Harvesting
This work elucidates the fundamental multiphysics coupling mechanisms governing acoustic T‐phone, providing a critical theoretical foundation and a predictive design paradigm for the future engineering and deployment of next‐generation, self‐powered acoustic sensors.
Dan Liu +6 more
wiley +1 more source
Digital Rights Activism in Multilevel Governance
ABSTRACT Multilevel governance (MLG) without a clear hierarchical structure can create power imbalances among various actors, particularly in settings with overlapping jurisdictions and policy areas. This dynamic is especially pronounced in Internet governance, which faces a complex interplay of domestic laws, state interdependence, and heightened ...
Alison Harcourt
wiley +1 more source
未认知与不确定性是深空探测任务的基本特征. 本文基于战略导向的体系化基础研究, 建立了一种面向科学价值最大化的探测场景和以可靠性为核心技术基础的深空探测自主运行可信性技术体系. 分析研究了深空探测场景下的可靠性概念; 面向精确感知、最优计算、准确决策、快精准执行的目标要素, 提出了深空探测自主运行的可信性体系框架以及“需求-认知-工程”总体技术架构; 针对自主运行可信性的关键技术难点, 开展了可靠性导向的多物理场、强耦合白盒建模, 复杂网络故障传播机制分析, COTS元器件深空探测应用的高可靠保证 ...
党 炜 +10 more
doaj +1 more source
论文陈述 Paper Statement 本研究揭示了不同宏观煤岩类型的差异化控气机制:半亮煤是主要“储气核心,” 光亮煤为关键“渗流通道,” 暗淡煤则是“初期高产贡献者”。这为深层煤层气甜点优选与定制开发提供了关键理论依据。 This study reveals the differentiated gas‐controlling mechanisms of different macroscopic coal lithotypes: semibright coal acts as the primary “gas storage core,” bright coal serves as the critical “seepage channel,” and dull coal functions
Heng Li +6 more
wiley +1 more source
Trace Mo Doping in NaMnO2 Cathode Materials for High‐Capacity Sodium‐Ion Batteries
Mo‐doping demonstrates great potential in promoting energy intensity. NaMn0.99Mo0.01O2 shows an average working voltage of 3.0 V and an initial capacity of 183.7 mAh g−1 at 0.2 C. It has a remarkable specific capacity of 138.1 mAh g−1 and 84.7% capacity retention over 100 cycles even at 1 C.
Jijie Wang +4 more
wiley +1 more source
Abstract Although a local experiment, the promulgation of the Regulations of Shenzhen Special Economic Zone on Personal Bankruptcy (SPBR) in 2020 was hailed as a significant milestone in China's insolvency lawmaking which has thus far addressed only corporate insolvencies.
Jenny Fu, Jin Chun
wiley +1 more source
针对智能机器控制的复杂性问题,提出了平行机器的概念、框架和方法。平行机器是将基于 ACP 的方法扩展到智能机器领域的产物,形成虚实平行互动的管控模式,是一种针对复杂环境、复杂问题的管理与控制方法。平行机器包括实际的物理机器和软件定义的虚拟机器,通过二者间的虚实互动实现描述、预测和引导3个功能,最后介绍平行机器相关技术并对平行机器的潜在应用进行展望。
白天翔, 沈震, 刘雅婷, 董西松
doaj
Acupuncture for fibromyalgia: An evidence map 针灸治疗纤维肌痛:证据图
Objective: The body of research on acupuncture as a treatment strategy for fibromyalgia (FM) is steadily growing. This evidence map identifies, describes, and summarizes the current status of studies conducted to evaluate the efficacy of acupuncture for ...
Lan-jun SHI +7 more
doaj +1 more source

