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Chinese Journal of Structural Chemistry 2006年第9期25卷 1031-1034页

作者： CAI wen-xuan wen Yi-Hang SU Hong FENG Yun-Long Institute of Physical Chemistry Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces Zhejiang Normal University Jinhua 321004 China

The title complex Zn（HL）（NCS）2 （C14H18N4OS2Zn, Mr = 387.81, HL = N-（3-dimethyl-aminopropyl）-salicylaldimine） has been synthesized by the reaction of ZnSO4·7H2O with the Schiff base N-（3-dimethylaminopropyl）-salicylaldimine derived from the condensation reaction of 3-dimethylamino- 1-propylamine with salicyladehyde. It crystallizes in the monoclinic system, space group P21/n with a = 9.8360（8）, b = 14.930（1）, c = 12.277（1） A, β= 101.455（2）°, V= 1767.0（3） A 3, Z = 4, F（000） = 800, Dc= 1.458 g/cm^3 and ,μ（MoKα） = 1.631 mm^-1. The structure was refined to R = 0.0463 and wR = 0.1065 for 2681 observed reflections （1 〉 2σ（I））. Crystal analyses revealed that the Zn（Ⅱ） atom is coordinated by two nitrogen atoms of two NCS^-, and an oxygen atom as well as a nitrogen atom of amine from the neutral Schiff base ligand of N-（3-dimethyl-aminopropyl）-salicylaldimine to give a distorted tetrahedral geometry.

关键词： 3-dimethylamino-1-propylamine salieylaldehyde Sehiff base,

A NEW UNSTEADY THREE DIMENSIONAL MODEL FOR MACROMOLECULAR TRANSPORT AND WATER FILTRATION ACROSS THE ARTERIAL WALL

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Applied Mathematics and Mechanics(English Edition) 2001年第10期22卷 1155-1172页

作者： HUANG Hao(黄浩) wen gong-bi(温功碧) Department of Mechanics and Engineering Science State Key Laboratory for Turbulence and Complicated System Research Peking University Beijing 100871 P R China Department of Mechanics and Engineering Science State Key Laboratory for Turbulence and Complicated System Research Peking University Beijing 100871 P R China

A new unsteady three-dimensional convective-diffusive mathematical model for the transportation of macromolecules and water across the arterial wall was proposed . After the formation of leaky junctions due to the mitosis of endothelial cell of the arterial wall, the macromolecular transport happens surrounding the leaky cells. The arterial wall was divided into four layers: the endothelial layer, the subendothelial intima, the internal elastic lamina and the media for the convenience of research. The time-dependent concentration growth,the effect of the shape of endothelial cell and the effect of physiological parameters were analyzed. The analytical solution of velocity field and pressure field of water flow across the arterial wall were obtained; and concentration distribution of three macromolecules ; LDL,HRP and Albumin, were calculated with numerical simulation method. The new theory predicts, the maximum and distribution areas of time dependent concentration with round shape endothelial cell are both larger than that with ellipse-shape endothelial cell. The model also predicts the concentration growth is much alike that of a two-dimensional model and it shows that the concentration reaches its peak at the leaky junction where atherosclerotic formation frequently occurs and falls down rapidly in a limited area beginning from its earlier time growth to the state when macromolecular transfer approaches steadily. These predictions of the new model are in agreement with the experimental observation for the growth and concentration distribution of LDL and Albumin.

关键词： unsteady three-dimensional model flow across the arterial wall macromolecular transportation atherosclerosis concentration distribution

Influence of salinity on the early development and biochemical dynamics of a marine fish, Inimicusjaponicus

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Journal of Oceanology and Limnology 2018年第2期36卷 427-437页

作者： gong Xu HUANG Xuxiong wen wen Key Laboratory of Freshwater Fishery Germplasm Resources Ministry of Agriculture Shanghai 201306 China Shanghai Engineering Research Center of Aquaculture Shanghai 201306 China Shanghai University Knowledge Service Platform Shanghai Ocean University Aquatic Animal Breeding Center (ZF1206) Shanghai 201306 China National Demonstration Center for Experimental Fisheries Science Education (Shanghai Ocean University) Shanghai 201306 China

Fertilised eggs of the devil stringer （Inimicusjaponicus） were incubated at different salinity levels （21, 25, 29, 33, and 37）, and then the hatching performances, morphological parameters, and biochemical composition （protein, lipid and carbohydrate） of the larvae were assayed to determine the influence of salinity on the early development ***. The tested salinity levels did not affect the times of hatching or mouth opening for yolk-sac larvae. However, the salinity significantly influenced the hatching and survival rates of open-mouthed larvae, as well as the morphology of yolk-sac larvae. The data indicated that 30.5 to 37.3 and 24.4 to 29.8 were suitable salinity ranges for the survival of embryos and larvae ***, respectively. Larvae incubated at a salinity level of 29 had the greatest full lengths, and decreasing yolk volume was positively correlated with the environmental salinity. With increasing salinity, the individual dry weights of newly hatched larvae or open-mouthed larvae decreased significantly. Newly hatched larvae incubated at a salinity level of 29 had the greatest metabolic substrate contents and gross energy levels, while the open- mouthed larvae＇s greatest values occurred at a salinity level of 25. Larvae incubated in the salinity range of 33 to 37 had the lowest nutritional reserves and energy values. Thus, the *** yolk-sac larvae acclimated more readily to the lower salinity level than the embryos, and higher salinity levels negatively influenced larval growth and development. In conclusion, the environmental salinity level should be maintained at 29-33 during embryogenesis and at 25-29 during early larval development for this species. Our results can be used to provide optimum aquaculture conditions for the early larval development of ***.

关键词： biochemical dynamics development embryo Inimicus japonicus salinity yolk-saclarva

Schemes for synthesizing high-resolution range profile with extended OFDM-MIMO

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Journal of Systems Engineering and Electronics 2017年第3期28卷 424-434页

作者： Xinhai Wang gong Zhang Fangqing wen De Ben Key Laboratory of Radar Imaging and Microwave Photonics Nanjing University of Aeronautics and AstronauticsNanjing 211106China College of Electronic and Information Engineering Nanjing University of Aeronautics and AstronauticsNanjing 211106China Electronic and Information School Yangtze UniversityJingzhou 434023China

Two novel schemes are proposed to synthesize high resolution range profile (HRRP) based on co-located multiple-input multiple-output (MIMO) system in the context of the joint radar and communication system. The difference between two schemes is the pattern of selecting pulses, which depends on the demand for the velocity information. The system, a type of frequency diverse array (FDA), takes full advantage of the phase-coded orthogonal frequency division multiplexing (OFDM) signal. Furthermore, the complete discrete form of the phase-coded OFDM echoes is utilized to derive the HRRP processing. The velocity estimation in the second scheme aims to eliminate velocity ambiguity, and high velocity can be retrieved exactly. Meanwhile, the imaging method is investigated with random frequency coding applied to an array. The desired performance of resolving velocity ambiguity and suppressing noise is shown by means of comparisons with previous work. The advantages in the radar imaging and the significance of the work are concluded in the end.

关键词： high-resolution range profile (HRRP) multiple-input multiple-output system (MIMO) orthogonal frequency division multiplexing (OFDM) joint radar-communication system

Recent progress on the magnetorheological plastomers

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International Journal of Smart and Nano Materials 2015年第2期6卷 135-148页

作者： Shouhu xuan Yangguang Xu Taixiang Liu Xinglong gong CAS Key Laboratory of Mechanical Behavior and Design of Materials Department of Modern MechanicsUniversity of Science and Technology of ChinaHefei 230026P.R.China

Different from the traditional magnetorheological(MR)fluids and elastomers,the magnetic particles in the plastic MR materials are not‘deadly’trapped in the polymer matrix;thus,the MR plastomers exhibit higher MR effects and lower *** plastic MR materials have attracted increasing attention,and the relevant fundamental mechanisms and practical applications have been intensively studied due to their unique physical and mechanical *** this highlight,we have mainly reviewed the preparation and the rheological properties of the MR *** formation mechanism of the MR plastomers has also been briefly summarized.

关键词： magnetorheological plastomers MR effects

Automatic data archiving and visualization at HLS-Ⅱ

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Nuclear Science and Techniques 2018年第9期29卷 179-184页

作者： Yi-Fan Song Chuan Li Ke xuan gong-Fa Liu National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefei 230029China

The control system of Hefei Light Source II(HLS-Ⅱ) is a distributed system based on the experimental physics and industrial control system(EPICS). It is necessary to maintain the central configuration files for the existing archiving system. When the process variables in the control system are added, removed, or updated, the configuration files must be manually modified to maintain consistency with the control system. This paper presents a new method for data archiving, which realizes the automatic configuration of the archiving parameters. The system uses microservice architecture to integrate the EPICS Archiver Appliance and Rec Sync. In this way, the system can collect all the archived meta-configuration from the distributed input/output controllers and enter them into the EPICS Archiver Appliance automatically. Furthermore, we also developed a web-based GUI to provide automatic visualization of real-time and historical data. At present,this system is under commissioning at HLS-Ⅱ. The results indicate that the new archiving system is reliable and convenient to operate. The operation mode without maintenance is valuable for large-scale scientific facilities.

关键词： Automatic archiving Data visualization Microservice architecture EPICS Archiver Appliance

Effect of cobalt on the activity of nickel-based/magnesium-substituted hydroxyapatite catalysts for dry reforming of methane

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CHINESE JOURNAL OF CHEMICAL ENGINEERING 2024年第12期76卷 281-291页

作者： Su, Tongming gong, Bo Xie, Xinling Luo, xuan Qin, Zuzeng Ji, Hongbing Guangxi Univ Sch Chem & Chem Engn Nanning 530004 Peoples R China Zhejiang Univ Technol Zhejiang Green Petrochem & Light Hydrocarbon Trans Hangzhou 310014 Peoples R China

The dry reforming of methane (DRM) reaction can directly convert methane (CH4) and carbon dioxide (CO2) into syngas (H2+CO), which is a promising method for achieving carbon neutralization. In this study, a series of 3Ni-xCo/Mg1HAP alloy catalysts with different ratio were synthesized by the coprecipitation method, and the optimum Ni-Co ratio for the DRM reaction was studied. A series of characterization methods revealed that after Co was added, the formation of Ni-Co alloys increased the interactions between metals. However, an excess of Co inhibits the entry of Ni into the lattice of Mg1HAP, resulting in metal accumulation on the surface of the support. In addition, the introduction of Co improves the dispersion of Ni metal, which endows the catalyst with better catalytic activity and stability. Raman spectroscopy of the catalyst after the stability test showed that the addition of Co reduced the proportion of graphitic carbon, which was also the main reason for its improved stability. (c) 2024 The Chemical Industry and Engineering Society of China, and Chemical Industry Press Co., Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.

关键词： Methane Carbon dioxide Hydroxyapatite Nickel Cobalt

Bandit neural architecture search based on performance evaluation for operation selection

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Science China(Technological Sciences) 2023年第2期66卷 481-488页

作者： ZHANG Jian gong xuan LIU YuXiao WANG Wei WANG Lei ZHANG BaoChang School of Automation Science and Electrical Engineering Beihang UniversityBeijing 100191China School of Computing University at BuffaloNew York 14260USA

Neural architecture search(NAS)plays an important role in many computer vision ***,the high computational cost of forward and backward propagations during the search,process restricts its practical *** this paper,we present the search process as a multi-armed bandit problem,where we take into account the uncertainty caused by the contradiction between the huge search space and limited number of *** NAS optimizes the trade-off between exploitation and exploration for a highly efficient ***,we sampled from a set of operations in one trial,where each operation was weighted by its trial performance and a bias to allow operations with less training to be *** further reduced the search space by abandoning the operation with the lowest potential,significantly reducing the search *** results on the CIFAR-10 dataset show that the resulting architecture achieves the most advanced precision with a search speed approximately two times faster than that of partially connected differentialble architecture *** ImageNet,we attained the most advanced top-1 accuracy of 75.3%with a search time of 1.8 GPU days.

关键词： bandit NAS DARTS upper confidence bounds

非层状二维γ-In_(2)Se_(3)的各向异性生长及其光学特性

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原子与分子物理学报 2025年第6期42卷 58-65页

作者：雷子煊张文婷夏晓凤王红艳西南交通大学物理科学与技术学院材料先进技术重点实验室成都610031

非层状二维(2D)γ-In_(2)Se_(3)具有优异的光学和电学性能,在超薄柔性器件和光电探测领域具有广泛的应用前景.然而,相较于层状的类石墨烯材料,非层状材料固有的各向同性化学键,使得其二维各向异性生长面临较大的挑战.本研究构建了一种... 详细信息

非层状二维(2D)γ-In_(2)Se_(3)具有优异的光学和电学性能,在超薄柔性器件和光电探测领域具有广泛的应用前景.然而,相较于层状的类石墨烯材料,非层状材料固有的各向同性化学键,使得其二维各向异性生长面临较大的挑战.本研究构建了一种新的化学气相沉积(CVD)生长策略,成功制备了高质量的2Dγ-In_(2)Se_(3).首次选用低熔点的铟粉为前驱体,有效降低了生长温度.此外,生长过程去除了CVD法合成二维硒化物时不可避免的危险气体H_(2),这不仅能有效抑制InSe副产物的形成,还降低了实验危险性.通过探究原料用量、生长温度及时间等参数对样品形貌和厚度的影响,获得了最佳生长窗口.详细表征了2Dγ-In_(2)Se_(3)的微观形貌、化学组分、晶体结构和光学特性等.结果表明,样品具有强烈的光致发光(PL)效应,与γ-In_(2)Se_(3)的直接带隙属性相吻合.随着厚度的减小,PL峰会发生蓝移,说明光学带隙随之增大.Raman光谱显示,不同厚度的样品其特征峰也会发生移动,说明厚度会影响2Dγ-In_(2)Se_(3)的分子振动行为.由此可见,通过生长参数调控2Dγ-In_(2)Se_(3)的厚度,可实现对其光学带隙和分子振动行为的调控,这将为相关的理论研究和光电器件应用提供基本的材料平台.

关键词：非层状材料二维γ-In_(2)Se_(3) 化学气相沉积各向异性生长带隙

Development of a control system for the fourth-harmonic cavity of the HLS storage ring

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Nuclear Science and Techniques 2018年第11期29卷 159-165页

作者： wen-Bo Wu Ke xuan Wei Xu Ji-Gang Wang Chuan Li gong-Fa Liu Cong-Feng Wu Jing-Yi Li National Synchrotron Radiation Laboratory University of Science and Technology of China Institute of High Energy Physics CAS

Harmonic RF cavities are commonly used in storage rings to lengthen the bunches and thus suppress the beam's instabilities and increase its Touschek lifetime. The voltage and phase of the electromagnetic fields in the harmonic cavity are of great importance for stretching the bunch. In the Hefei Light Source storage ring, a passive fourth-harmonic cavity is installed, and the cavity is monitored and controlled by an analog control module provided by its manufacturer. To vary and maintain the voltage of the harmonic cavity in a more effective way, a digital proportional, integral, and derivative feedback system based on the Experimental Physics and Industrial Control System is developed on top of the analog control module. This paper reports the details of the development of this voltage control system. Some test and operational results are also presented.

关键词： Bunch length High-harmonic cavity EPICS PID feedback