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云南昭通地区越冬的黑颈鹤

野生动物 1998年第6期19卷 21-21页

作者：孙德辉云南昭通地区防疫站 657000

云南昭通地区是黑颈鹤越冬的王要栖息地之一。1995／96年冬季共发现有1000只左右个体在10个地点越冬栖息．越冬集群有家族、同种和异种三种类型。成功比为8：1。目前辽些分布点的沼泽湿地都已受到不同程度的人为破坏。云南省政府正筹划... 详细信息

云南昭通地区是黑颈鹤越冬的王要栖息地之一。1995／96年冬季共发现有1000只左右个体在10个地点越冬栖息．越冬集群有家族、同种和异种三种类型。成功比为8：1。目前辽些分布点的沼泽湿地都已受到不同程度的人为破坏。云南省政府正筹划在该地区建立自然保护区。

关键词：黑颈鹤越冬集群类型云南昭通地区

基于MATLAB RTW和软PLC的先进控制算法实现

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计算机测量与控制 2015年第11期23卷 3631-3634页

作者：雷振伍吴秀冰孙德辉史运涛李志军北方工业大学电气与控制工程学院北京100144

先进控制算法在实际应用过程中,往往伴随着算法难以实现、调试繁琐等问题;为将先进控制算法高效地部署到DCS上,提出了一种方便快捷的实现方法;首先,在MATLAB自身集成的先进控制算法与实际工业对象之间建立OPC通讯,反复调试后得到与被控... 详细信息

先进控制算法在实际应用过程中,往往伴随着算法难以实现、调试繁琐等问题;为将先进控制算法高效地部署到DCS上,提出了一种方便快捷的实现方法;首先,在MATLAB自身集成的先进控制算法与实际工业对象之间建立OPC通讯,反复调试后得到与被控对象特性相匹配的控制算法;其次,通过MATLAB RTW将该MATLAB/Simulink先进控制算法生成C++代码;最后,使用软PLC高级语言编程技术,将算法的C++代码无缝集成到DCS当中;实践中设计了一种基于双容水箱液位控制的模糊控制算法;实验结果表明,以该方式设计的控制算法具有良好的控制特性和较高的实际应用价值;该方式缩短了以往控制算法的部署周期,为先进控制算法在DCS中的实际应用提供了强有力的解决方案。

关键词：自动控制技术先进控制 MATLAB RTW 软PLC 模糊控制

基于.NET的OPC DA客户端开发与应用

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北方工业大学学报 2009年第3期21卷 9-12,18页

作者：孙德辉陈亚伟史运涛李志军刘大千北方工业大学北京市现场总线技术与自动化重点实验室北京100144

运用.NET和OPC技术,实现了监控组态软件的OPC DA客户端的开发,很好地解决了与不同厂商设备的通信问题,快速高效地实现了系统集成.通过此OPC DA客户端,实现了监控组态软件和西门子PLC的通信.

关键词： OPC .NET WinCC PLC

Thermal Analysis of a Novel Oil Cooled Piston Using a Fluid-Solid Interaction Method

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Fluid Dynamics & Materials Processing 2021年第4期17卷 773-787页

作者： dehui Tong Shunshun Qin Jingguo Lin Jingyang sun Yuping Hu State Key Laboratory of Engine Reliability Weifang261061China Weichai Power Co. Ltd.Weifang261061China School of Energy and Power Engineering Shandong UniversityJinan250061China

Thermal load has a vital influence on the normal operation and service life of diesel *** this study,the thermal load and oil-cooling effect on diesel engine pistons were investigated by means of computational fluid *** particular,the flow and heat transfer characteristics of the cooling gallery were determined during the oscillation of the ***,the temperature field distribution of the piston with and without the cooling gallery were *** results revealed that the cooling gallery has a prominent effect on reducing the thermal load on the piston crown and piston *** fully understand the oscillating heat transfer effect related to the cooling gallery and verify the accuracy of the calculation,the numerical results were also compared with temperature values experimentally measured at key positions of the *** measurements were found to be consistent with the calculation results within an acceptable error range,which proves the rationality and accuracy of the mathematical and numerical models used.

关键词： Diesel engine piston thermal load cooling gallery CFD oscillating cooling

新城疫病毒Roakin株HN基因的克隆及真核表达载体的构建

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西北农业学报 2009年第2期18卷 19-23,37页

作者：张继乐陈豪泰丁耀忠孙德惠马丽娜张杰金雷高云英刘永生西北农林科技大学动物医学院陕西杨凌712100 中国农业科学院兰州兽医研究所家畜疫病病原生物学国家重点实验室农业部畜禽病毒学重点开放实验室甘肃兰州730046

克隆新城疫病毒(Newcastle disease virus,NDV)Roakin株HN基因,并构建真核表达载体。应用RT-PCR扩增出NDV Roakin株HN基因,将其克隆入pMD18-T载体,并进行了测序鉴定和HN基因的序列分析。然后分别将NDV的HN基因和选择标记基因—二氢叶酸... 详细信息

克隆新城疫病毒(Newcastle disease virus,NDV)Roakin株HN基因,并构建真核表达载体。应用RT-PCR扩增出NDV Roakin株HN基因,将其克隆入pMD18-T载体,并进行了测序鉴定和HN基因的序列分析。然后分别将NDV的HN基因和选择标记基因—二氢叶酸还原酶(dhfr)基因插入到真核表达载体pCI-neo中,通过PCR扩增、酶切分析和测序分析等鉴定所构建的重组真核表达载体。RT-PCR扩增的NDVRoakin株HN序列与GenBank中标准毒株(登录号AY289000)HN序列同源性为99.8%,构建了HN基因的真核表达质粒pCI-HN-D。成功构建了含有NDV Roakin株HN基因和dhfr基因的真核表达载体。

关键词：新城疫病毒 HN基因 dhfr基因真核表达载体

A proof-based method of hybrid systems development using differential invariants

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Frontiers of Computer Science 2018年第5期12卷 1026-1028页

作者： Jie LIU Jing LIU Miaomiao ZHANG Haiying sun Xiaohong CHEN dehui DU Mingsong CHEN Shanghai Key Laboratory of Trustworthy Computing East China Normal University Shanghai 200062 China School of Computer Science and Technology University of South China HengYang 421001 China School of Software Engineering Tongji University Shanghai 201804 China

1 Introduction Event-B is a widely applied and proof-based language for incremental development via refinement [1]. Hybrid systems exhibit hybrid characteristics of discrete control and real-time continuous behaviors. However, Event-B is a discrete modeling language. It does not support the development of hybrid systems. So, the researchers are currently trying to make the extension of Event-B for the refinement development of hybrid systems [2, 3].

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Self-Healing Hydrophilic Porous Photothermal Membranes for Durable and Highly Efficient Solar-Driven Interfacial Water Evaporation

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CCS Chemistry 2022年第7期4卷 2396-2408页

作者： Fuchang Xu dehui Weng Xiang Li Yang Li Junqi sun State Key Laboratory of Supramolecular Structure and Materials College of ChemistryJilin UniversityChang chun 130012

It is highly desirable to develop a solar-driven interfacial water evaporatorwith a self-healing ability and high-efficiency water evaporation performance for water distillation and desalination;however,this process is considerably ***,by exploiting the advantages of a self-healing hydrophilic polymer,a self-healing hydrophilic porous photothermal(SHPP)membrane was fabricated by curing a mixture of the polymer,carbon black,and NaCl,followed by removal of the NaCl from *** the SHPP membrane could serve as a photothermal layer and water transportation channel simultaneously,a solar-driven interfacial evaporator could be fabricated readily by assembling the SHPP membrane with polyethylene *** have shown that the SHPP membrane-based evaporator exhibited a water evaporation rate of 1.68 kg m^(−2) h^(−1) and an energy efficiency of 97.3%.These values are superior to those obtained using solar-driven interfacial evaporators with self-healing ***,by hydrogen bonds reformation between the fracture surfaces,the SHPP membrane could regain its structural integrity after breaking,making the SHPPmembrane-based evaporator the first to heal entirely and repeatedly from physical damage to sustain itswater evaporation ***,the potential of using SHPP membranes to develop stable,long-last ing,andhigh-efficiency solar-driven interfacial water evaporators is highlighted.

关键词： porous membranes photothermal conversion interfacial water evaporation self-healing hydrophilic polymers

Salvinia-like slippery surface with stable and mobile water/air contact line

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National Science Review 2021年第5期8卷 119-129页

作者： Xiaomei Li Jinlong Yang Kaixuan Lv Periklis Papadopoulos Jing sun dehui Wang Yanhua Zhao Longquan Chen Dapeng Wang Zuankai Wang Xu Deng Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of China State Key Laboratory of Polymer Physics and Chemistry Institute of Applied ChemistryChinese Academy of Sciences Physics Department University of Ioannina University Research Center of Ioannina (URCI) Institute of Materials Science and Computing Department of Mechanical Engineering City University of Hong Kong School of Physics University of Electronic Science and Technology of China

Superhydrophobic surfaces are widely used in many industrial settings, and mainly consist of rough solid protrusions that entrap air to minimize the liquid/solid area. The stability of the superhydrophobic state favors relatively small spacing between protrusions. However, this in turn increases the lateral adhesion force that retards the mobility of drops. Here we propose a novel approach that optimizes both properties simultaneously. Inspired by the hydrophobic leaves of Salvinia molesta and the slippery Nepenthes pitcher plants, we designed a Salvinia-like slippery surface(SSS) consisting of protrusions with slippery heads. We demonstrate that compared to a control surface, the SSS exhibits increased stability against pressure and impact, and enhanced lateral mobility of water drops as well as reduced hydrodynamic drag. We also systematically investigate the wetting dynamics on the SSS. With its easy fabrication and enhanced performance, we envision that SSS will be useful in a variety of fields in industry.

关键词： slippery Cassie state Salvinia molesta stability low adhesion drag reduction

The program structure designing and optimizing tests of GRAPES physics

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Chinese Science Bulletin 2008年第22期53卷 3470-3476页

作者： XU GuoQiang CHEN dehui XUE JiShan sun Jian SHEN XueShun SHEN YuanFang HUANG LiPing WU XiangJun ZHANG HongLiang WANG ShiYu State Key Laboratory of Severe Weather Chinese Academy of Meteorological Sciences Beijing 100081 China National Meteorological Centre Beijing 100081

According to the modularization and standardization of program structure in Global/Regional Assimilation and Prediction System (GRAPES), the plug-compatible and transplantable regional meso-scale and global middle-range physics software package is established. The package's component integrality is comparative with the other advanced models physics. A three-level structure of connecting GRAPES physics and dynamic frame has been constructed. The friendly interface is designed for users to plug in their own physics packages. Phenomenon of grid-point storm rainfall in numerical prediction is analyzed with the numerical tests. The scheme of air vertical velocity calculation is improved. Optimizing tests of physics schemes are performed with the correlative parameters adjusting. The results show that the false grid-point storm rainfall is removed by precipitation scheme improving. Then the score of precipitation forecast is enhanced.

关键词：数值天气预报天气预测气象分析暴雨