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Systematic review on application effect of M-health for PCI postoperative coronary heart disease patients

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中国循环杂志 2018年第S1期33卷 173-173页

作者： huimin zhang Yi zhang Fen Dai Xinqiao Hospital Army Medical UniversityChongqingChina

Objective To systematically evaluate the application effect of M-healthfor PCI postoperative coronary heart disease *** on patients withM-healthwere screened from these databases (EMBASE, PUMBED, Cochrane Library, CNK... 详细信息

关键词： M-health PCI EMBASE

Relationship between Cr-Al Interaction and the Performance of Cr-Al<sub>2</sub>O<sub>3 </sub>Catalysts for Isobutane Dehydrogenation

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Modern Research in Catalysis 2015年第2期4卷 50-58页

作者： Deren Fang Jinbo Zhao Shang Liu Limei zhang Wanzhong Ren huimin zhang Engineering Center of Petrochemical Light Hydrocarbon Comprehensive Utilization of Shandong Province Yantai University Yantai China

A series of catalysts were prepared using the kneading molding method and the impregnation method as well as the dry mix method by using different raw materials. By using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and temperature-programmed reduction (TPR) techniques, we studied the relationship between the catalyst performance and the Cr-Al interaction in the catalytic dehydrogenation of isobutane. The results demonstrated that the Cr-Al interaction in the catalyst had a direct influence on the catalytic activity and the selectivity of isobutene. The catalysts prepared using the kneading molding method had higher catalytic activity and isobutene selectivity than those prepared using the dry mix method. By comparison, XRD, XPS, and TPR results showed that the greater the Cr-Al interaction in the catalyst was, the higher the catalytic activity was. Here, we propose a mechanism of isobutane dehydrogenation.

关键词： Isobutane Dehydrogenation Cr/Al2O3 Cr-Al Interaction Catalyst Mechanism

CH3NH3I post-treatment improves the performance of perovskite solar cells via eliminating the impure phases

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CH3NH3I post-treatment improves the performance of perovskit...

第五届新型太阳能电池学术研讨会

作者： Chunjun Liang huimin zhang Xuejian Wan Key Laboratory of Luminescence and Optical Information Ministry of EducationSchool of Science Beijing Jiaotong University

Organic-inorganic halide perovskite as one of the hottest materials for its exceptional properties are currently generating extensive interest in solar cells. The perovskite morphology and composition play a significant role on solar cells. Impure phases are always present inevitably. We find that depositing MAI again on the previous perovskite eliminate the impurity phase, leading to further improvement in power conversion efficiency. In this study, we demonstrate that the incorporation of Cl in perovskite is helpful for improving the performance of the device via ameliorating the morphology of the perovskite. However, it introduces the impurity phases of MAPbCl. The post MAI treatment is an effective approach to remove the residual impurity phase of PbI and MAPbCl. The post deposited MAI participates into the reconstruction of the perovskite, leading to the enlarged grain size and the improved absorption. These changes benefit to improve the performance of the perovskite solar cells.

关键词： Organic-inorganic halide perovskite

Dynamic interface charge governing the current–voltage hysteresis in perovskite solar cells

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Dynamic interface charge governing the current–voltage hyst...

第二届新型太阳能电池学术研讨会

作者： huimin zhang Chunjun Liang Zhiqun He Key Laboratory of Luminescence and Optical Information Ministry of EducationInstitute of Optoelectronics Beijing Jiaotong University

Despite the rapid progress of perovskite solar cells(PSCs) based on the organic–inorganic halide perovskites, the fundamental problem, i.e. the origin of current-voltage hysteresis, is still a challenge in the field. Recent works indicated that large amount of mobile ions exist in the perovskite layer. The accumulation of the mobile ions at the interfaces between the perovskite and the other layers results in large quantity of interface charge, which significantly changes the band bending of the semiconductor near the interface. In this work, we investigated the correlation between the dynamic change of the interface charge and the photocurrent in PSCs. The results indicate that the existence of the interface charge significantly affects the carrier collection efficiency of PSCs. Consequently under fast changing bias the dynamics of the interface charge governs the current-voltage hysteresis. Finally we show that the degree of the hysteresis is closely related to the magnitude of the interface charge. Very low interface charge density leads to hysteresis-free devices. [1]

关键词：钙钛矿太阳能电池界面电荷

Bioinformatics analysis for the role of CALR in human cancers

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Bioinformatics analysis for the role of CALR in human cancer...

2021年中国肿瘤标志物学术大会暨第十五届肿瘤标志物青年科学家论坛

作者： Yijun Li Jianjun He huimin zhang Departments of Breast Surgery First Affiliate Hospital of Xi’an Jiaotong University

Background: Cancer is one of the most important public health problems in the world. The curative effect of traditional surgery, radiotherapy and chemotherapy is limited and has inevitable side effects. As a potential target for tumor therapy, few studies have comprehensively analyzed the role of CALR in ***: By using GeneCards, UALCAN, GEPIA, Kaplan-Meier Plotter, COSMIC, Regulome Explorer,String, GeneMANIA and TIMER databases, we collected and analyzed relevant data to conduct indepth bioinformatics research on the CALR expression in Pan-cancer to assess the possibility of CALR as a potential therapeutic target and survival ***: We studied the CALR expression in normal human tissues, various tumors and tumor stages, and found that different expressions of CALR led to different prognosis. Mutations of CALR were widely present in tumors. CALR interacted with different genes and co-expressed with various proteins. In tumors, a variety of immune cells are closely related to ***: CALR can be used as a biomarker for predicting prognosis and a potential target for tumor molecular and immunotherapy.

关键词： CALR cancer immunotherapy biomarker

CuO/CaMoO_(4)复合抗菌剂的制备、表征及其在黄瓜贮藏中的应用

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现代食品科技 2024年第5期40卷 142-149页

作者：张慧敏威海海洋职业学院食品与药品系山东威海264300

该文以钼酸铵、鸡蛋壳、十六烷基三甲基溴化铵为原材料,通过改变煅烧温度制备了性能更为优良的CaMoO_(4),并以钼酸钙、硫酸铜、硼氢化钠为原料,制备了CuO/CaMoO_(4)复合抗菌剂,同时研究了CuO/CaMoO_(4)复合抗菌剂的用量、培养时间、铜... 详细信息

该文以钼酸铵、鸡蛋壳、十六烷基三甲基溴化铵为原材料,通过改变煅烧温度制备了性能更为优良的CaMoO_(4),并以钼酸钙、硫酸铜、硼氢化钠为原料,制备了CuO/CaMoO_(4)复合抗菌剂,同时研究了CuO/CaMoO_(4)复合抗菌剂的用量、培养时间、铜含量对抗菌活性的影响,以及CuO/CaMoO_(4)复合抗菌剂在光反应和暗反应条件下对大肠杆菌(Escherichia coli,***)的抑菌效果。实验结果表明,在650℃煅烧下得到的CuO/CaMoO_(4)复合抗菌剂的抗菌性能最好,铜含量为1.20%时,光照条件下和黑暗条件下的抑菌率均能达到100%。含有CuO/CaMoO_(4)复合抗菌剂的保鲜膜抑菌试验表明,CuO/CaMoO_(4)复合抗菌剂可以有效抑制食品表面的大肠杆菌,食品经贮藏4 d后,抑菌率仍为100%。CuO/CaMoO_(4)复合抗菌剂生物相容性好。CuO/CaMoO_(4)复合抗菌剂能快速高效抑制大肠杆菌,保障食品安全,为食品贮存行业提供了新的思路。

关键词： CuO/CaMoO_(4) 食品贮藏抗菌性能

Solution to Some Graph Problems in which Edges Have Two Weights

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The Journal of China Universities of Posts and Telecommunications 1997年第2期4卷 35-38页

作者： Su Sixi and zhang huimin (Information Engineering Department, Beijing University of Posts and Telecommunications, Beijing 100876, P.R.China) ***

In this paper, two weights problems are put forward and discussed. A uniformly method is introduced to solve minimum spanning tree problem, the shortest path problem and minimum cost flow *** method is called T *** method is a kind of approximation technique, but quite *** computational complexity of T method is nearly polynomial.

关键词： network graph weight T method

Organic-inorganic perovskite light-emitting electrochemical cells with a large capacitance

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Organic-inorganic perovskite light-emitting electrochemical ...

第四届新型太阳能电池学术研讨会

作者： huimin zhang Chunjun Liang Zhiqun He Key Laboratory of Luminescence and Optical Information Ministry of EducationInstitute of Optoelectronics Beijing Jiaotong University

While perovskite light-emitting diodes typically made from high work function anode and low work function cathode have recently gained intense interests, we demonstrate perovskite light-emitting devices from two high work function electrodes with interesting ***, electroluminescence can be easily obtained from both forward and reverse ***, the results of impedance spectroscopy indicate that the ionic conductivity in the iodide perovskite(CHNHPbI) is large with a value of ***, the shift of the emission spectrum in the mixed halide perovskite(CHNHPbIBr) lightemitting devices indicates that I-ions are mobile in the ***, our work shows that the accumulated ions at the interfaces results in a large capacitance(00 μFcm).The above results conclusively prove that the organic–inorganic halide perovskites are solid electrolytes with mixed ionic and electronic conductivity and the light-emitting device is a light-emitting electrochemical *** work also suggests that the organic-inorganic halide perovskites are potential energy-storage materials, which may be applicable in the field of solid-state super capacitors and batteries.[1] [2]

关键词：钙钛矿发光电化学池界面电荷

Electrocatalytic dechlorination of 2,4,5-trichlorobiphenyl using an aligned carbon nanotubes electrode deposited with palladium nanoparticles

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Chinese Science Bulletin 2010年第4期55卷 358-364页

作者： CHEN Shuo QIN ZhenLin QUAN Xie zhang YaoBin ZHAO huimin Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education China) School of Environmental and Biological Science and Technology Dalian University of Technology Dalian 116024 China

Palladium loaded carbon nanotubes cathode with well-aligned nanotubes array was successfully fabricated on a titanium foil (Pd/CNTs/Ti) using a chemical vapor deposition technique and subsequent electrochemical deposition method. Pd particles were well dispersed on CNTs wall surfaces with average sizes no more than 20 nm, in most cases around 10 nm. Experiments for dechlorination of 2,4,5-trichlorobiphenyl (PCB 29) in methanol/water solution were carried out for the first time using Pd/CNTs/Ti cathode for investigation of its performance in electrocatalytic dechlorination of PCBs. Results show that Pd/CNTs/Ti presented better dechlorination efficiency (up to 90% in 6 h) than Pd/Ti and Pd/graphite cathodes owing to unique properties owned by CNTs, which benefited enhanced dechlorination of PCB 29. Complete dechlorination for PCB 29 was observed and biphenyl was identified to be final dechlorination product. The amount of Pd loading, cathode potential, and electrolytes were found to be key factors influencing dechlorination performance.

关键词：碳纳米管阵列脱氯性能钯阴极电极沉积三氯化学气相沉积技术印刷电路板多氯联苯