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Preparation of Dendritic Carbosilane-supported Palladium Catalyst and Its Catalytic Activity in Hydrogenation of Organic Compounds

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Chinese Chemical Letters 2005年第10期16卷 1389-1392页

作者： chun fang li Dong Xiang li Zhi Jie ZHANG Sheng Yu FENG School of Chemistry and Chemical Engineering Shandong University Jinan 250100 School of Chemistry Chemical Engineering and Materials Shandong Normal University Jinan 250014 Institute of Chemistry Chinese Academy of Sciences Beijing 100080

The preparation of palladium complex from PdCl2·2H2O and carbosilane dendrimers with pelripheral aminopropyl groups was described. The compound obtained was characterized by IR, H NMR, X-ray photoelectron spectroscopy （XPS） and inductively coupled plasma atomic emission spectrometric （ICP-AES） spectroscopy respectively. The metal complex was employed as catalyst in hydrogenation of organic compounds. The high activity of the complex was probably due to the formation of the coordinatively unsaturated palladium.

关键词： Dendrimer complex catalysis.

Laser cladding of Ni-based alloy on stainless steel

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中国有色金属学会会刊：英文版 2004年第z1期14卷 296-300页

作者： XUE chun-fang TIAN Xin-li TAN Yong-sheng WU Zhi-yuan Department of Mechanical Engineering Academy of Armored Force Engineering Beijing 100072 China Department of Mechanical Engineering Academy of Armored Force Engineering Beijing 100072 China Key Laboratory for High Energy Density Beam Processing TechnologyGeneral Company of Aeronautics Industry Beijing 100024 China Department of Mechanical Engineering Academy of Armored Force Engineering Beijing 100072 China

The coatings on a stainless steel substrate were conducted by laser cladding of Ni-based alloy, using a 5 kW continuous wave CO2 flow transverse laser. SEM, EDX and X-ray diffraction were used to analyze the microstructure and constituent phases of the obtained coatings by laser cladding with direct injection of the powder into the melt pool. Solidification planar, cellular and dendrite structures were observed in Ni-based alloy coating. There exists an optimum metallurgical bond between Ni-based laser cladding layer and the base material. The high hardness of the Ni-based alloy coating is attributed to the presence of M7C3-type carbides (essentially chromium-riched carbide) dispersed in the γ(Ni,Fe) phase matrix.

关键词： laser cladding Ni-based alloy microstructure

From Zn-Al layered double hydroxide to ZnO nanostructure:Gradually etching by sodium hydroxide

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Chinese Chemical Letters 2012年第12期23卷 1415-1418页

作者： Gang Qiang Wan Dong Xiang li chun fang li Jie Xu Wan Guo Hou State Key Laboratory Base of Eco-chemical Engineering Lab of Colloids and Functional NanostructuresCollege of Chemistry and Molecular EngineeringQingdao University of Science and Technology Key Laboratory of Colloid and Interface Chemistry of Ministry of Education Shandong University

Zn-Al layered double hydroxide （LDH） was used as precursor to produce ZnO nanostructures through dissolution of aluminum hydroxide in caustic soda. The Zn-Al LDH could transform into different nanostructures of ZnO on LDH nanosheets and even pure ZnO nanorods under various NaOH concentration. The formed ZnO nanorods vertically aligned on both LDH sides. UV-vis diverse reflectance spectra show that the obtained ZnO nanorods have a band gap of approximately 3.05 eV. Such ZnO/LDH nanostructures might be used as photocatalyst in the organic pollutant decomposition.

关键词： Layered double hydroxide (LDH) ZnO Nanostructure

Synthesis and Biological Evaluation of Novel Tricyclic Oximino Derivatives as Antitumor Agents

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Chemical Research in Chinese Universities 2008年第1期24卷 47-53页

作者： GUO Shu-chun ZHAO Yan-fang li Rong-dong XIE li-jun YANG You-bin GONG Ping School of Pharmaceutical Engineering Shenyang Pharmaceutical University Shenyang 110016 P. R. China

A series of novel alkylthio/sulfinyl-8H-thieno[2,3-b]pyrrolizin-8-oximino derivatives Ⅴ1--Ⅷ15 were designed and synthesized as antitumor agents. Their structures were confirmed using IR, ^1H NMR, elemental analysis, and MS. The antitumor activities of all the target compounds were tested by the MTT method in vitro against Bel-7402, HT-1080, SGC-7901, and A549 Cell lines. Among them, compound Ⅵ9 displayed a promising antitumor activity superior to that of Cisplatin.

关键词： Thieno[2,3-b] pyrrolizine Synthesis Antitumor activity

Development and Application of lightning Protection Technologies in Power Grids of China

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高电压技术 2013年第10期39卷 2329-2343页

作者： GU Shanqiang CHEN Jiahong FENG Wanxing ZHAO chun fang Yuhe li Tao State Grid Electric Power Research Institute Wuhan 430074 China

In recent years,along with the rapid expansion of power grids,the increasing complication of grid structures,and the development of smart grids and energy technologies,the lightning protection of power grids becomes increasingly *** grids of China have acquired significant achievements on lightning protection technologies,which are reviewed in this paper.A technical route of lightning protection is introduced in detail; it allows us to find problems through detection and measurement of lightning,to analyze problems through evaluation and simulation of lightning,to solve problems through lightning protection measures,and to prevent problems through hazard risk warning of *** the route,the technical breakthroughs of these four aspects in China are presented,including the chinese lightning detection network(CLDN),natural lightning observations,lightning faults detection at transmission lines,lightning current measurements,progresses in lightning distribution maps,lightning fault replays,lightning hazard risk evaluations,and lightning simulated experiments,as well as novel lightning protection *** practical devices and systems corresponding to the technologies mentioned above are also introduced and *** to the progress of lightning protection technologies in recent years,despite the rapidly growing length of transmission lines in China,the lightning accident rate is controlled at a certain level.

关键词：防雷技术电网结构中国灾害风险评估电模拟实验应用技术路线防雷措施

Endovascular treatment of pseudo-aneurysm occurring after embolization of traumatic carotid cavernous fistula with detachable balloons

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Chinese Medical Journal 2008年第15期121卷 1487-1491页

作者： fang chun li Ming-hua TAN Hua-qiao ZHANG Pei-lei ZHOU Bin Department of Radiology Sixth People's Hospital Shanghai Jiao Tong University Shanghai 200233 China

Traumatic carotid-cavemous fistula （CCF） is an abnormal passageway between the intracavemous carotid artery and the cavernous sinus after a head injury. Most CCFs have direct high flow. Clinical presentations primarily depend on the pressure inside the cavernous sinus and on the direction of the venous drainage. The ideal goal for the treatment of direct CCF is the obliteration of the fistula while preserving the internal carotid artery （ICA）. Transarterial embolization of direct CCF with detachable balloons has been proven to be the best option for an initial treatment, although transarterial embolization by detachable balloons is frequently associated with pseudo-aneurysm formation. Many treatment options such as coiling, stent-assisted coiling, and covered stent have been proposed to treat pseudo-aneurysm. However, the best management for a pseudo-aneurysm occurring after an embolization of a CCF with detachable balloons remains unknown. In this article, we will report our successful attempt in treating the said pseudo-aneurysm. We initially dealt with a pseudo-aneurysm occurring after an embolization of a CCF with stent-assisted coiling; then, the pseudoaneurysm recanalized, and eventually a covered stent was placed for the recanalized pseudoaneurysm.

关键词： carotid-cavernousfistula pseudo-aneurysm covered stent endovascular treatment

Negative Phase Time Effectin Potential-Well Passing

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Advances in Manufacturing 2000年第3期4卷 210-213页

作者： chun-fang li Qi Wang College of Sciences Shanghai University Shanghai China

The properties of phase time taken for particles to pass through a quantum potential well are investigated. It is found in a 1 dimensional quantum mechanical problem that the phase time is negative when the incident energy and the thickness of potential well satisfy certain conditions. Similar results are also found in a 2 dimensional fully relativistic optical analog. It is shown that the expression of the la teral shift of transmitted optical waves is similar to that of the phase time in the 1 dimensional quantum mechanical problem. The phase time in the 2 dimensional optical problem is also shown to be negative under certain conditions.

关键词： negative phase time negative lateral shift potential well quantum like dependence of phase on potential well thickness

Cutaneous lesions and visceral involvement of tuberous sclerosis

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中华医学杂志(英文版) 2005年第3期000卷 40-44页

作者： SUN Xin-fen, YAN chun-lin, fang li, SHEN Fu-min and liAO Kang-huangDepartment of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, ChinaDepartment of Epidemiology, School of Public Health, Fudan University, Shanghai 200032, China Department of Dermatology Huashan Hospital Fudan University Shanghai 200040 China Department of Epidemiology School of Public Health Fudan University Shanghai 200032 China

Background Tuberous sclerosis (TS) is an autosomal dominant disorder with a significant range of clinical expressions. The involvement of vital organs, such as the brain, kidney, heart and lung is the main cause of death in patients with TS. The aim of this study is to summarize the charateristic cutaneous features and common extracutaneous involvement of TS, which are helpful to the early detection of visceral involvement.

关键词： tuberous sclerosis · signs and symptoms ﹒ skin manifestations

Interfacial Zn2+-solvation regulator towards reversible and stable Zn anode

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Journal of Energy Chemistry 2025年第1期100卷 684-692页

作者： Miao Zhou Xiongbin Luo Hang li Shan Guo Zhuang Tong Xiaotao Zhou Xu li Zhaohui Hou Shuquan liang Guozhao fang College of Mechanical Engineering Key Laboratory of Hunan Province for Advanced Carbon-based Functional Materials Hunan Institute of Science and Technology School of Materials Science and Engineering Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province Central South University College of Materials and Metallurgy Guizhou University National Energy Metal Resources and New Materials Key Laboratory Central South University

Aqueous zinc-ion batteries （AZIBs） are fundamentally challenged by the instability of the electrode/electrolyte interface,predominantly due to irreversible zinc （Zn） deposition and hydrogen ***,the intricate mechanisms behind the electrochemical discrepancies induced by interfacial Zn2+-solvation and deposition behavior demand comprehensive *** molecules endowed with special functional groups （such as hydroxyl,carboxyl,etc.） have the potential to significantly optimize the solvation structure of Zn2+and regulate the interfacial electric double layer （EDL）.By increasing nucleation overpotential and decreasing interfacial free energy,these functional groups facilitate a lower critical nucleation radius,thereby forming an asymptotic nucleation model to promote uniform Zn ***,this study presents a pioneering approach by introducing trace amounts of n-butanol as solvation regulators to engineer the homogenized Zn （H-Zn） anode with a uniform and dense *** interfacial reaction and structure evolution are explored by in/ex-situ experimental techniques,indicating that the H-Zn anode exhibits dendrite-free growth,no by-products,and weak hydrogen evolution,in sharp contrast to the bare ***,the H-Zn anode achieves a remarkable Zn utilization rate of approximately 20% and simultaneously sustains a prolonged cycle life exceeding 500 ***,the H-Zn//NH4V4O10（NVO） full battery showcases exceptional cycle stability,retaining 95.04%capacity retention after 400 cycles at a large current density of 5 A *** study enlightens solvation-regulated additives to develop Zn anode with superior utilization efficiency and extended operational lifespan.

关键词： Aqueous zinc-ion batteries Interfacial reaction Asymptotic nucleation model Reversible and stable Zn anode