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甲醇耦合的烷烃催化转化反应耦合效应评价方法及装置 [PDF]
, 2011 一种甲醇耦合的烷烃催化转化反应的耦合效应评价方法，用于测定甲醇及其脱水转化反应产物对烷烃催化转化的耦合效应；主要过程是：通过质量流量计来控制不同流速载气流过含有烷烃或甲醇饱和发生器而携带出原料蒸汽，将蒸汽以脉冲方式进入反应器，获得不同接触时间条件下甲醇耦合烷烃催化转化的反应转化率和烷烃单独催化转化的反应转化率，并根据甲醇耦合烷烃催化转化的反应转化率和烷烃单独催化转化的反应转化率分别计算出上述两种催化转化的反应速率 ...
刘中民, 许磊, 魏迎旭, 常福祥
core
, 2001 针对808nm大功率GaAs/GaAlAs半导体量子阱激光器的远场光场分布特点，提出了与多模光纤耦合时对耦合光学系统的特殊要求，并根据低成本、实用化的要求设计制作了专用的耦合光学系统，对耦合光学系统的实际性能进行了测试，给出了耦合效率统计分布图、耦合偏差曲线和高低温可靠性实验结果。用设计制作出的实用化耦合光学系统完成了输出功率15-30W，光纤束数值孔径为0.11-0.22的半导体激光光纤模合模块，模块的使用结果表明耦合光学系统稳定、高效 ...
陈少武, 胡传贤, 韩勤, 金才政
core
Coupled Structural Characteristics Boost Brazing Performance of Ti2AlNb Alloy
Rare Metals, Volume 45, Issue 8, August 2026.ABSTRACT Brazing of Ti2AlNb alloy is a pivotal technique for new generation aero‐engine lightweight structures, yet developing novel filler metal and achieving the extraordinary performance of titanium alloy brazed joints remains challenging. Here, this study designed an innovative filler metal (Ti70‐xZrxCu15Ni15) and developed inspired coupled ...
Yinchen Wang +13 more
wiley +1 more source
Rare 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
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Organ‐specific ozone and nitrogen legacies strengthen substrate control over litter decomposition
Functional Ecology, Volume 40, Issue 8, Page 2548-2559, August 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Elevated tropospheric ozone (O3) and nitrogen (N) deposition are concurrent atmospheric changes that strongly influence terrestrial carbon cycling, yet their combined effects on below‐ground decomposition remain poorly understood.
Xiaofan Hou +8 more
wiley +1 more source
, 1987 该呼吸耦合器是作为日本光电公司生产的RM-6000型多导生理记录仪的配件而设计制作的。由于我国引进该公司的该类仪器已有二十余年历史,该仪器在国内外医学界、生理学界和心理学界甚多,而且该呼吸耦合器是与热敏电阻传感器配合使用的,凡使用该类传感器完成呼吸换能工作的其他厂家生产的其它有关仪器,如生物反馈仪等,均可采用。
郑连兴
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Corporate Quasi‐Sovereignty: Big Tech and the Politics of Sovereign Authority in the Digital Age
Policy Studies Journal, Volume 54, Issue 3, August 2026.ABSTRACT As private technology firms expand their control over critical infrastructures, questions of sovereignty and governance are increasingly displaced from states to corporate actors. Existing scholarship on sovereignty assumes that authority is either monopolized by states or shared through institutionalized public–private arrangements.
Chee Hae Chung, Bryce J. Dietrich
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四川大学学报. 自然科学版, 2010 本文采用数值模拟的方法研究了参数不均匀性,耦合和噪音的协作效应对单向耦合布鲁塞尔体系相干共振的影响作用,其中噪音仅加于无耦合的控制体系.研究结果发现:具有相同控制参数的耦合体系,在耦合和噪音协作效应的影响下,存在最佳的耦合强度使控制体系的相干共振在受控制体系中得到增强.对于不同控制参数的耦合体系,参数不均匀性,耦合和噪音的协作效应对控制体系相干共振的增强或维持起决定性的作用.另外,当耦合强度和噪音达到临界值时,参数不均匀性的作用消失,此时控制体系和受控制体系之间出现了动力学行为的同步现象 ...
施建成
doaj
Visible‐Light‐Excited Optical Thermometry in Ca3Sc2Si3O12: Er3+ via an Efficient Eu2+ Bridge
Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Er3+ ions are promising for optical thermometry due to their thermally coupled levels. However, their parity‐forbidden transitions result in weak and narrowband absorption, which restricts excitation to infrared lasers (e.g., 808, 980, or 1550 nm). Moreover, the single emission center inherently limits temperature sensitivity. In this work, we
Yi Liu +6 more
wiley +1 more source