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波分复用 2

60 GHz；封装天线；共面波导馈电环形谐振器；玻璃集成无源器件；超表面天线；小型化天线 1

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用于超快电子器件的全通型波导 Article

Desong Wang, Ke Wu

《工程（英文）》 2023年第30卷第11期页码 49-54 doi: 10.1016/j.eng.2023.04.005

摘要：

Ultrashort pulse transmission has been recognized as a primary problem that fundamentally hinders the development of ultrafast electronics beyond the current nanosecond timescale. This requires a transmission line or waveguide that exhibits an all-pass frequency behavior for the transmitted ultrashort pulse signals. However, this type of waveguiding structure has not yet been practically developed; groundbreaking innovations and advances in signal transmission technology are urgently required to address this scenario. Herein, we present a synthesized all-pass waveguide that demonstrates record guided-wave controlling capabilities, including eigenmode reshaping, polarization rotation, loss reduction, and dispersion improvement. We experimentally developed two waveguides for use in ultrabroad frequency ranges (direct current (DC)-to-millimeter-wave and DC-to-terahertz). Our results suggest that the waveguides can efficiently transmit picosecond electrical pulses while maintaining signal integrity. This waveguide technology is an important breakthrough in the evolution of ultrafast electronics, providing a path towards frequency-engineered ultrashort pulses for low-loss and low-dispersion transmissions.

关键词： All-pass waveguide Ultrashort pulse Picosecond transmission Ultrafast electronics Terahertz technology Mode-selective transmission line

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Ag/PMMA hollow waveguide for solar energy transmission

He LAN, Jianjun HAN, Hongping CHEN, Xiujian ZHAO

《化学科学与工程前沿（英文）》 2011年第5卷第3期页码 303-307 doi: 10.1007/s11705-010-0565-y

摘要： This paper describes an elaborate study on obtaining Ag/PMMA (polymethyl methacrylate) leaky hollow waveguide which has a large aperture and low loss in transmitting solar energy. Through analyses and comparison, a quartz capillary with the inner diameter of 2 mm was chosen as hollow waveguide. We used the xenon light source, which has the similar spectrum as the sunlight to test and analyze the performance of the Ag/PMMA leakage hollow waveguide. The results are consistent with the transmitted theory of the dielectric/metal leaky type well. Meanwhile, the Ag/PMMA leaky-type hollow waveguide in this work had good qualities. Therefore, it will be a satisfactory medium for solar energy transmission.

关键词： hollow waveguide transmit the solar energy Ag/PMMA multiple film parabolic collector

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Engineering Management to Serve All Human Beings

Yong-fu Sun

《工程管理前沿（英文）》 2014年第1卷第3期页码 231-231 doi: 10.15302/J-FEM-2014032

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Agent的PASS-BDI模型

樊玮,陈增强,袁著祉

《中国工程科学》 2004年第6卷第6期页码 43-49

摘要：将Das等人提出的计划—注意—同时性加工—继时性加工认知过程模型引入Agent的理论研究中，建立了Agent的PASS-BDI模型，利用多价π-演算从心智状态，PASS-BDI模型加强了对Agent主动性认知过程的刻画，且易于编程实现。

关键词：主体 π-演算认知过程心智状态

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Enhanced charge extraction for all-inorganic perovskite solar cells by graphene oxide quantum dots modified

《化学科学与工程前沿（英文）》 2023年第17卷第5期页码 516-524 doi: 10.1007/s11705-022-2238-z

摘要： All-inorganic cesium lead bromide (CsPbBr₃) perovskite solar cells have been attracting growing interest due to superior performance stability and low cost. However, low light absorbance and large charge recombination at TiO₂/CsPbBr₃ interface or within CsPbBr₃ film still prevent further performance improvement. Herein, we report devices with high power conversion efficiency (9.16%) by introducing graphene oxide quantum dots (GOQDs) between TiO₂ and perovskite layers. The recombination of interfacial radiation can be effectively restrained due to enhanced charge transfer capability. GOQDs with C-rich active sites can involve in crystallization and fill within the CsPbBr₃ perovskite film as functional semiconductor additives. This work provides a promising strategy to optimize the crystallization process and boost charge extraction at the surface/interface optoelectronic properties of perovskites for high efficient and low-cost solar cells.

关键词： all inorganic perovskite solar cells graphene oxide quantum dots high performance stability

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Renin--angiotensin system inhibitor is associated with the reduced risk of all-cause mortality in COVID

《医学前沿（英文）》 2022年第16卷第1期页码 102-110 doi: 10.1007/s11684-021-0850-9

摘要： Consecutively hospitalized patients with confirmed coronavirus disease 2019 (COVID-19) in Wuhan, China were retrospectively enrolled from January 2020 to March 2020 to investigate the association between the use of renin–angiotensin system inhibitor (RAS-I) and the outcome of this disease. Associations between the use of RAS-I (angiotensin-converting enzyme inhibitor (ACEI) or angiotensin receptor blocker (ARB)), ACEI, and ARB and in-hospital mortality were analyzed using multivariate Cox proportional hazards regression models in overall and subgroup of hypertension status. A total of 2771 patients with COVID-19 were included, with moderate and severe cases accounting for 45.0% and 36.5%, respectively. A total of 195 (7.0%) patients died. RAS-I (hazard ratio (HR)=0.499, 95% confidence interval (CI) 0.325–0.767) and ARB (HR=0.410, 95% CI 0.240–0.700) use was associated with a reduced risk of all-cause mortality among patients with COVID-19. For patients with hypertension, RAS-I and ARB applications were also associated with a reduced risk of mortality with HR of 0.352 (95% CI 0.162–0.764) and 0.279 (95% CI 0.115–0.677), respectively. RAS-I exhibited protective effects on the survival outcome of COVID-19. ARB use was associated with a reduced risk of all-cause mortality among patients with COVID-19.

关键词： COVID-19 RAS inhibitor hypertension all-cause mortality

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“ALL FREE” — a novel design concept of applying partial oxidation process to vehicle

Ling LIN, Wenshuang LIN, Qingbiao LI, Yao ZHOU,

《化学科学与工程前沿（英文）》 2010年第4卷第2期页码 207-212 doi: 10.1007/s11705-009-0240-3

摘要： With the rapid expansion of the global motor vehicle population, the transportation sector has taken up a growing proportion among all the carbon dioxide emission-related sectors. To contribute to solutions of the carbon dioxide-oriented problem in transportation, this paper proposes the “ALL FREE” concept that applies partial oxidation process instead of the conventional complete oxidation to vehicle engines. In such an engine, the fuels are partially oxidized into corresponding chemical products, which, as a result, enable the process to be theoretically free of CO, while the heat output of the partial oxidation could drive the vehicle. On the other hand, the resulting products are of great value, which could decrease or even counteract the cost of fuels in transportation. In this paper, the thermodynamic and kinetic data (e.g., the heat output and heat release rate) of five selected partial oxidation reactions were calculated at length to demonstrate and exemplify the theoretical feasibility of the “ALL FREE” concept. It turned out that the partial oxidation of -butane to maleic anhydride has the most potential to meet the basic requirements of this concept. To sum up, this design concept is of significant application potential for the reduction of CO emissions in the transportation industry, although there remain many technical challenges.

关键词： oxidation process CO complete oxidation ALL FREE -butane

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Primary health care for all by 2020: The systematic reform of the medical and health system in China

《医学前沿（英文）》 2010年第4卷第1期页码 3-7 doi: 10.1007/s11684-010-0024-7

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Fertilizer drawn forward osmosis as an alternative to 2nd pass seawater reverse osmosis: Estimation of

《环境科学与工程前沿（英文）》 2021年第15卷第6期 doi: 10.1007/s11783-021-1428-0

摘要：

• The boron concentration in diluted DS can satisfy the irrigation water standard.

关键词： Fertilizer drawn forward osmosis (FDFO) Boron removal Specific energy consumption (SEC) Seawater reverse osmosis (SWRO) Irrigation water production

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统一集论与人工智能

张江,林华,贺仲雄

《中国工程科学》 2002年第4卷第3期页码 40-47

摘要：

通过综合经典集合、模糊集合、可拓集合、Vague集合、粗糙集合、集对分析、FHW（模糊灰色物元空间）、FEEC（模糊可拓经济控制）等多种理论，提出了统一集概念，并详细讨论统一集的各种运算以及相关性质。从分析集合理论和人类思维形式之间的关系人手，把统一集理论初步应用到模式识别、聚类分析、逻辑推理、机器学习、智能决策等多种人工智能领域，指出了集合论及其运算系统与逻辑推理系统的等价关系。统一集能对现有的理论进行总结、统一，还为开辟崭新的集合论、逻辑推理方法提供很好的理论基础。

关键词：统一集人工智能集合运算逻辑推理

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Thanks to all medical workers fighting against COVID-19

Xiao-ping Chen

《医学前沿（英文）》 2020年第14卷第2期页码 249-250 doi: 10.1007/s11684-020-0789-2

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基于片上波导的超灵敏探测与超分辨成像 Review Articles

庞陈雷,刘旭,陈伟,杨青

《信息与电子工程前沿（英文）》 2020年第21卷第8期页码 1134-1149 doi: 10.1631/FITEE.1900211

摘要：本综述介绍基于芯片的波导生物传感和成像技术的最新研究进展，这些技术可显著降低系统复杂度。这些技术利用波导表面的近场倏逝场与周围样品产生相互作用，实现对被检测生物分子的高灵敏探测和微纳样品的高信噪比超分辨成像。相关检测与成像波导芯片的制作过程简单，且同传统半导体加工工艺兼容，具有大规模生产应用前景。通过与近年来快速发展的片上集成光源结合，这些技术为实现片上系统集成的生物分子检测和超分辨成像提供了可能。

关键词：导探测；波导成像；倏逝场照明；移频与频谱拼接

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Yellow fever and Hajj: with all eyes on Zika, a familiar flavivirus remains a threat

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《医学前沿（英文）》 2016年第10卷第4期页码 527-530 doi: 10.1007/s11684-016-0487-2

摘要：

Hajj is among the world’s largest mass gatherings, drawing between 2 and 3.5 million Muslims from 183 nations annually to perform pilgrimage in Mecca, Saudi Arabia. Infectious disease outbreaks can be imported both into the Hajj population and exported internationally by returning pilgrims. The domestic Saudi population can also be at risk of outbreaks traveling amid this mass migration. With yellow fever reported for the first time in China following the infection of expatriate Chinese workers in Angola and a full blown outbreak underway in wider West Africa, the prospect of yellow fever outbreaks in Asia threatens to impact Saudi Arabia, both during and beyond the Hajj season. With global focus trained on Zika, the rising threat of yellow fever cannot be overlooked. Strategies to mitigate risk to Saudi Arabia and the global population are thereby suggested.

关键词： yellow fever mass gathering Saudi Arabia Hajj Zika virus

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全气候新能源汽车关键技术及展望

王文伟,孙逢春

《中国工程科学》 2019年第21卷第3期页码 47-55 doi: 10.15302/J-SSCAE-2019.03.020

摘要：

全气候新能源汽车是指能够适应包括高温、高湿和极寒等各种气候环境的新能源汽车，相对于目前高温高湿环境下较为成熟的隔热散热与防护技术，新能源汽车在超过–30 ℃的极寒环境下存在无法启动、续驶里程锐减、充电困难等问题，是国际社会公认的制约新能源汽车全气候应用的难题。本文分析研究了动力电池自加热技术、高效冷暖一体化热泵空调技术、新型整车隔热保温技术等全气候新能源汽车技术体系，并进行了整车集成开发及极寒环境试验，最后分析了全气候新能源汽车的技术发展趋势。本文所述的研究成果将通过在2022 年北京冬季奥林匹克运动会上率先进行示范应用，从而推动我国乃至国际新能源汽车的全气候应用。

关键词：全气候新能源汽车电池自加热热泵空调隔热保温