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A smooth co-ordination control for a hybrid autonomous power system (HAPS) with battery energy storage

C. K. ARAVIND,G. SARAVANA ILANGO,C. NAGAMANI

《能源前沿（英文）》 2015年第9卷第1期页码 31-42 doi: 10.1007/s11708-015-0347-9

摘要： The standalone hybrid power system constitutes a synchronous generator driven by a diesel engine, renewable energy source (wind) apart from a battery energy storage system. A coherent control strategy to regulate the voltage and frequency of the standalone grid is proposed in this paper. The system is simulated using Matlab/Simulink for preliminary validation and further tested on a laboratory prototype which involves a TMS320LF2407A DSP controller to digitally implement the control strategy. The dynamic behavior of the system is perused through the direct connection of an induction machine. The control strategy is verified for step changes in load and variation in wind power.

关键词： standalone hybrid power system battery energy storage system (BESS) power conversion

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我国航天测控系统的现状与发展

于志坚

《中国工程科学》 2006年第8卷第10期页码 42-46

摘要：

随着我国航天任务的日益复杂化、多样化，对测控的需求也向“高、精、尖”方向发展，航天测控系统再一次面临新的机遇与挑战。在综合分析国内外航天测控发展历程与现状的基础上，总结了航天测控的发展特点与发展趋势，提出了符合我国国情的“优化地基测控网、建设和发展天基测控网、构建深空探测网，循序渐进构建天地空一体化测控通信系统”的整体发展思路，并对我国地基、天基、深空探测测控通信系统发展及重点技术进行了分析探讨。

关键词：航天测控系统总体设计发展

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软硬件协同设计和系统级仿真探索

徐辉,王祖强,王照君

《中国工程科学》 2006年第8卷第4期页码 86-88

摘要：

简要介绍了系统级芯片设计的软硬件协同设计、协同仿真技术和SoC开发中系统级协同仿真的工具，并给出了一个在CCSS（CoCentric system studio）环境下完成软硬件协同仿真的实例。

关键词：片上系统软硬件协同仿真 System C CCSS （CoCentric system studio）

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A state-of-the-art review of solar passive building system for heating or cooling purpose

Arun Kumar NANDA,C K PANIGRAHI

《能源前沿（英文）》 2016年第10卷第3期页码 347-354 doi: 10.1007/s11708-016-0403-0

摘要： The major portion of energy in a building is consumed by heating, ventilating, and air-conditioning (HVAC). The traditional heating and cooling systems contribute greatly to the emission of greenhouse gases, especially carbon dioxide. Four different ways, i.e., Trombe wall, solar chimney, unglazed transpired solar façade, and solar roof, are adopted for solar heating. Similarly, two major ways, i.e., evaporative cooling and building integrated evaporative cooling are adopted for cooling of the building. Therefore, an attempt has been made in this paper to compile the developments of solar heating and cooling technologies in a building.

关键词： HVAC heating cooling solar heating carbon dioxide (CO₂) emissions

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Removal of virus aerosols by the combination of filtration and UV-C irradiation

《环境科学与工程前沿（英文）》 2023年第17卷第3期 doi: 10.1007/s11783-023-1627-y

摘要：

● The removal of virus aerosols by filtration and UV-C irradiation was proposed.

关键词： Filtration system UV-C irradiation Virus aerosol Public health COVID-19

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耗散陀螺系统的李雅普诺夫函数构造：剩余能量函数方法 Personal View

Cem CİVELEK, Özge CİHANBEĞENDİ

《信息与电子工程前沿（英文）》 2020年第21卷第4期页码 629-634 doi: 10.1631/FITEE.1900014

摘要：在自由度为4、张量有逆变（右上标）和协变（右下标）形式的耗散陀螺系统中，使用二阶线性微分方程建立拉格朗日耗散模型，即{L, D}模型。通过系统的{L, D}模型确定广义元素。满足勒让德变换先决条件时，可得哈密顿量。剩余能量函数（REF）由哈密顿量及损耗或耗散能量（为负）之和组成，将其作为李雅普诺夫函数，可通过李雅普诺夫第二方法作稳定性分析，并从数学上推导出稳定性条件。

关键词：李雅普诺夫函数；剩余能量函数；耗散陀螺系统稳定性

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基于半实物的S频段卫星测控仿真系统平台设计

杨永安,韩忠民,冯祖仁,李光明,张宏伟

《中国工程科学》 2004年第6卷第12期页码 85-90

摘要：

该仿真系统是为了满足Ｓ频段卫星测控演练的需要而提出的。根据航天测控系统和S频段测控设备的特点，明确了仿真系统的组成及功能，并对主要部分进行了详细的描述；确定了仿真系统运行工作模式、主要技术指标、接口之间关系；结合实际应用情况，通过与真星进行比对，证明通过建立半物理仿真数学模型，达到了在数据层上与真星具有等价性，并展望了未来发展方向。

关键词：系统仿真航天测控系统 S频段卫星

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嵌入式Internet控制系统的设计与分析

宗群,李然,王波

《中国工程科学》 2005年第7卷第5期页码 53-56

摘要：

对嵌入式Internet控制系统设计的相关问题进行了研究，包括系统需求、系统结构、设计与实现方法等，在此基础上建立了具有嵌入式Internet节点的控制系统，实现了其在电梯远程监控系统（REMS）中的应用，通过测试证明可以很好的满足实际需要。

关键词：嵌入式Internet控制系统 REMS DS80C400 JAVA TINI

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新型统一测控系统

史长捷

《中国工程科学》 1999年第1卷第1期页码 63-66

摘要：

新研制成功的遥测、遥控、外测三合一的统一测控系统，在有镜面反射条件下，对于超低空飞行目标，能克服多径效应衰落的影响，稳定地进行捕获跟踪测量，并且具有很高的可靠性。它也可在其他使用场合推广。文章介绍了工作原理、技术特点以及如何克服低仰角多径效应衰落和达到高可靠性所采取的措施。采统可灵活配套使用，以适应多种使用条件。在空用应答机上，解决了强弱信号共用信道的问题，减小了体积，降低了频率综合器相位噪音。

关键词：遥测遥控外测

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Valveless pumping using a two-stage impedance pump

C.-C. LEE, Y. A. ABAKR, K.-C. WOO

《机械工程前沿（英文）》 2013年第8卷第3期页码 311-318 doi: 10.1007/s11465-013-0270-x

摘要：

Impedance pump is defined as a type of valveless pumping mechanism, where an elastic tube is joined with a tube of different impedance, a periodic asymmetrical compression on part of the elastic tube will produce a unidirectional flow. Numerical and experimental studies had been conducted in the past, but little experimental work was found to exploit the principle of multi-stage impedance pumping for fluid transportation. This paper concentrates on the fluid behavior for an open-loop two-stage system experimentally. The aim of this work is to have an insight on the deliverable head and pumping rate of an open-loop two-stage impedance pumping system. This paper generally investigates the effect of different parameters towards the generation of unidirectional flows and composite flow of two opposite directions. Results obtained are of significant values.

关键词： valveless pumping open-loop two-stage unidirectional composite

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基于S3C2410的GPRS数据终端的设计

孙学用

《中国工程科学》 2007年第9卷第12期页码 94-96

摘要：提出了以S3C2410处理器为核心，以SIM100-E为GPRS通信模块,构建了一套嵌入式Internet数据终端的方案，对其硬件构成及工作流程进行了讨论，描述了其软件层次结构，并详细讲解了基于该平台的

关键词： GPRS；嵌入式Internet；S3C2410；SIM100-E

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Bioinspired C/TiO

Jian LI, Likun GAO, Wentao GAN

《农业科学与工程前沿（英文）》 2017年第4卷第4期页码 459-464 doi: 10.15302/J-FASE-2017178

摘要： butterfly wings were replicated by a sol-gel method and a calcination process, which could take advantage of the spatial features of the wing to enhance their photocatalytic properties. Hierarchical structures of -carbon-TiO (PP-C-TiO ) were confirmed by SEM observations. By applying the Brunauer-Emmett-Teller method, it was concluded that in the presence of wings the product shows higher surface area with respect to the pure TiO made in the absence of the wings. The higher specific surface area is also beneficial for the improvement of photocatalytic property. Furthermore, the conduction and valence bands of the PP-C-TiO are more negative than the corresponding bands of pure TiO , allowing the electrons to migrate from the valence band to the conduction band upon absorbing visible light. That is, the presence of C originating from wings in the PP-C-TiO could extend the photoresponsiveness to visible light. This strategy provides a simple method to fabricate a high-performance photocatalyst, which enables the simultaneous control of the morphology and carbon element doping.

关键词： bioinspired butterfly wings C/TiO₂ photocatalyst visible light

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System-level Pareto frontiers for on-chip thermoelectric coolers

YURUKER, Michael C. FISH, Zhi YANG, Nicholas BALDASARO, Philip BARLETTA, Avram BAR-COHEN, Bao YANG

《能源前沿（英文）》 2018年第12卷第1期页码 109-120 doi: 10.1007/s11708-018-0540-8

摘要： The continuous rise in heat dissipation of integrated circuits necessitates advanced thermal solutions to ensure system reliability and efficiency. Thermoelectric coolers are among the most promising techniques for dealing with localized on-chip hot spots. This study focuses on establishing a holistic optimization methodology for such thermoelectric coolers, in which a thermoelectric element’s thickness and the electrical current are optimized to minimize source temperature with respect to ambient, when the thermal and electrical parasitic effects are considered. It is found that when element thickness and electrical current are optimized for a given system architecture, a “heat flux vs. temperature difference” Pareto frontier curve is obtained, indicating that there is an optimum thickness and a corresponding optimum current that maximize the achievable temperature reduction while removing a particular heat flux. This methodology also provides the possible system level Δ ’s that can be achieved for a range of heat fluxes, defining the upper limits of thermoelectric cooling for that architecture. In this study, use was made of an extensive analytical model, which was verified using commercially available finite element analysis software. Through the optimization process, 3 pairs of master curves were generated, which were then used to compose the Pareto frontier for any given system architecture. Finally, a case study was performed to provide an in-depth demonstration of the optimization procedure for an example application.

关键词： thermoelectric cooling thermal management optimization high flux electronics

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Antithrombin deficiency and decreased protein C activity in a young man with venous thromboembolism:

null

《医学前沿（英文）》 2018年第12卷第3期页码 319-323 doi: 10.1007/s11684-017-0553-4

摘要：

Antithrombin and protein C are two crucial members in the anticoagulant system and play important roles in hemostasis. Mutations in and lead to deficiency or dysfunction of the two proteins, which could result in venous thromboembolism (VTE). Here, we report a Chinese 22-year-old young man who developed recurrent and serious VTE in cerebral veins, visceral veins, and deep veins of the lower extremity. Laboratory tests and direct sequencing of and were conducted for the patient and his family members. Coagulation tests revealed that the patient presented type I antithrombin deficiency combined with decreased protein C activity resulting from a small insertion mutation c.848_849insGATGT in and a short deletion variant c.572_574delAGA in . This combination of the two mutations was absent in 400 healthy subjects each from southern and northern China. Then, we summarized all the mutations of the and gene reported in the Chinese Han population. This study demonstrates that the combination of antithrombin deficiency and decreased protein C activity can result in severe VTE and that the coexistence of different genetic factors may increase the risk of VTE.

关键词： antithrombin deficiency protein C activity mutation variant venous thromboembolism anticoagulants

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Atomistic simulations of plasma catalytic processes

Erik C. Neyts

《化学科学与工程前沿（英文）》 2018年第12卷第1期页码 145-154 doi: 10.1007/s11705-017-1674-7

摘要： There is currently a growing interest in the realisation and optimization of hybrid plasma/catalyst systems for a multitude of applications, ranging from nanotechnology to environmental chemistry. In spite of this interest, there is, however, a lack in fundamental understanding of the underlying processes in such systems. While a lot of experimental research is already being carried out to gain this understanding, only recently the first simulations have appeared in the literature. In this contribution, an overview is presented on atomic scale simulations of plasma catalytic processes as carried out in our group. In particular, this contribution focusses on plasma-assisted catalyzed carbon nanostructure growth, and plasma catalysis for greenhouse gas conversion. Attention is paid to what can routinely be done, and where challenges persist.

关键词： atomic scale simulation plasma-catalyst

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标题作者时间类型操作

A smooth co-ordination control for a hybrid autonomous power system (HAPS) with battery energy storage

C. K. ARAVIND,G. SARAVANA ILANGO,C. NAGAMANI

期刊论文

我国航天测控系统的现状与发展

于志坚

期刊论文

软硬件协同设计和系统级仿真探索

徐辉,王祖强,王照君

期刊论文