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Chinese Journal of Structural Chemistry 2019年第7期38卷 1188-1193页

作者： GUO Feng tian guang-Hui Chongqing Key Laboratory of Inorganic Special Functional Materials School of Chemistry and Chemical Engineering Yangtze Normal University Fuling Chongqing 408100 China School of Finance and Economics Yangtze Normal University Chongqing 408100 China

A novel coordination polymer [Mn(bcp)(bib)0.5]n(1, H2 bcp = 1,3-bis(4-carboxyphenoxy)propane and bib = 1,4-bis(imidazol-1-yl)benzene) was synthesized under hydrothermal conditions, and was characterized by single-crystal X-ray diffraction analyses and further characterized by elemental analyses, IR spectroscopy and powder X-ray diffraction(PXRD).Complex [Mn(bcp)(bib)0.5]n(1) is of triclinic system, space group P1 with a = 7.320(5), b =11.871(5), c = 13.932(5)?,α= 111.125(5)°,β= 99.658(5)°,γ= 101.104(5)°, Z = 2, V= 1070.3(9)?3 Mr = 474.34, Dc = 1.472 g/cm^3, F(000)= 488,μ= 0.660 mm^-1, the final R = 0.0353 and wR =0.0.984 for 4373 observed reflections with I > 2σ(I). Structure analysis reveals that complex 1 displays a rare 2 D + 2 D → 2 D polyrataxane topology. Moreover, the luminescent property for 1 was investigated at room temperature.

关键词： Mn(Ⅱ) crystal structure luminescence

Atomic Pt anchored on hierarchically porous monolithic carbon nanowires as high-performance catalyst for liquid hydrogenation

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Nano Research 2023年第4期16卷 5880-5886页

作者： Zhengbin tian Xiaohui Deng Ping He guang-Hui Wang Key Laboratory of Biofuels Qingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of SciencesQingdao 266101China University of Chinese Academy of Sciences 100049 BeijingChina

Monolithic catalysts play a crucial role in various catalytic applications,e.g.,chemical synthesis,energy conversion,and environmental treatment,but their catalytic efficiency is often limited by the restricted mass transfer and insufficient exposure of active ***,we present a dual-templating strategy to fabricate atomic Pt dispersed on monolithic N-doped mesoporous carbon nanowires(Pt_(1)/NMCW)with abundant super-/macropores,which,as monolithic catalyst,exhibits high catalytic performance in hydrogenation of 4-nitrophenol(4-NP).During synthesis,triblock copolymer(Pluronic F127)is employed as a primary soft template to generate the mesoporous structured carbon nanowires to improve the accessibility of Pt single sites;KCl crystallite is used as a secondary hard template to create the super-/macropores,which are beneficial for enhancing the mass transfer *** to the dual-templating strategy that creates the monolithic carbon nanowires with hierarchically porous structure,the obtained Pt_(1)/NMCW shows highly enhanced catalytic activity in 4-NP hydrogenation,outperforming its analogue synthesized without using KCl as template and being comparable to the nano-powder catalyst(i.e.,atomic Pt loaded on the Ndoped carbon nanospheres,Pt_(1)/NCS).

关键词： dual-templating strategy monolithic catalysts porous carbon nanowires Pt single atoms hydrogenation

Recovery of zinc from Zn-Al-Fe alloys by gas pressure filtration

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Journal of Iron and Steel Research International 2020年第11期27卷 1322-1330页

作者： tian-yang Li Zhe Wang Lei Guo zhan-cheng Guo State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

The recovery of zinc from galvanizing dross and the removal of iron contained dross particles by gas pressure filtration were investigated using the model of Zn-Fe-Al *** majority of molten zinc was separated after filtration,and the residue intercepted by the filter consisting mostly of dross *** effects of the pressure differential(p),separation temperature(T)and alloy composition on the zinc recovery and iron removal were *** p=0.30 MPa and T=723 K,86.2 wt.%zinc was recovered from the Zn-4Al-2Fe alloy,and up to 99.9 wt.%of the iron was concentrated in the *** a higher pressure differential led to the improved filtration efficiency,and the desired separation temperature was about 723 *** aluminum content in the Zn-Al-Fe alloy had little effect on separation efficiency,whereas increasing the iron content led to a decrease in the separation *** findings demonstrate the potential of the gas pressure filtration method for the recovery of zinc from galvanizing dross.

关键词： Galvanizing dross Gas pressure filtration Zinc recovery Iron removal Separation

HBV DNA vaccine with adjuvant cytokines induced specific immune responses against HBV infection

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World Journal of Gastroenterology 2003年第1期9卷 108-111页

作者： De-WeiDu zhan-Shengjia guang-YuLi Yong-YingZhou DepartmentofInfectiousDiseases TangduHospitalFourthMilitaryMedicalUniversity'Xi'an710038ShaanxiProvinceChina DepartmentofInfectiousDiseases TangduHospitalFourthMilitaryMedicalUniversity'Xi'an710038ShaanxiProvinceChina

AIM:To seek for an effective method to improve the immune responses induced by DNA vaccine expressing HBV surface antigen(pCR3.1-S)in Balb/c mice(H-2~d). METHODS:The pCR3.1-S plasmid and the eukaryotic expression vectors expressing murine IL-2(pDOR-IL-2)or IL-12(pWRG3169)were injected into mice subcutaneously. The immune responses to pCR3.1-S and the adjuvant effect of the cytokines plasmid were *** the effect of pCR3.1-S on anti-translated subcutaneous tumor of P815 mastocytoma cells stably expressing HBsAg(P815-HBV-S) was also ***-HBs in serum was detected by enzyme- linked immunoadsordent assay(ELISA)and HBsAg specific cytotoxic T lymphocytes(CTLs)activity was measured by ^(51)Cr release *** three weeks of DNA immunization,the cells of P815-HBV-S were inoculated into mice subcutaneously and the tumor growth was measured every five *** survival rate and living periods of mice were also calculated. RESULTS:After 8 wk DNA immunization,the A 450 nm values of sera in mice immunized with pCR3.1,pCR3.1-S and pCR3.1-S codeliveried with IL-2 or IL-12 plasmids were 0.03+0.01,1.24±0.10,1.98±0.17 and 1.67±0.12 *** in mice codeliveried pCR3.1-S with IL-2 or IL-12 plasmids were significantly higher than that of mice injected pCR3.1 or pCR3.1-S *** HBsAg specific CTL activities in mice coinjected with pCR3.1-S and IL-2 or IL- l2 eukaryotic expression vectors were(61.9±7.1)% and (73.3±8.8)%,which were significantly higher than that of mice injected with pCR3.1(10.1±2.1)% or pCR3.1-S(50.5 ±6.4)%.The HBsAg specific CTL activities in mice injected with pCR3.1,pCR3.1-S,pCR3.1-S combined with IL-2 or IL- l2 eukaryotic expression vectors decreased significantly to (3.2±0.8)%,(10.6±1.4)%,(13.6±1.3)% and(16.9±2.3) % respectively after the spleen cells were treated by anti- CD8^+ monoclonal antibody,but presented no significant change to anti-CD4^+ monoclonal antibody or unrelated to monoclonal *** HBV-S DNA vaccine(pCR3.1-S

关键词：乙型肝炎 HBV-DNA疫苗免疫反应细胞因子酶联免疫法

Effect of anti-tuberculosis therapy on liver function of pulmonary tuberculosis patients infected with hepatitis B virus

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World Journal of Gastroenterology 2005年第16期11卷 2518-2521页

作者： LeiPan zhan-ShengJia LinChen En-QingFu guang-YuLi CenterofInfectiousDiseases TangduHospitalFourthMilitaryMedicalUniversityXi'an710038ShaanxiProvinceChina RespiratoryDepartment TangduHospitalFourthMilitaryMedicalUniversityXi'an710038ShaanxiProvinceChina

AIM: To observe the effect of anti-tuberculosis therapy on liver function of pulmonary tuberculosis patients with hepatitis B virus (HBV) infection, and to compare the differences of liver function by two treatments of ***: Forty-seven TB patients with HBV infection and 170 TB patients without HBV infection were divided into HPBE(S) and HLAMKO treatment groups. Liver function tests before and after the treatments were performed once in 2 wk or monthly, and their clinical manifestations were ***: The rate of hepatotoxicity occurred in 26 (59%)TB patients with HBV during anti-TB treatment, higher than that in 40 (24%) TB patients without HBV. Hepatotoxicity occurred in 66 out of 217 patients, and the incidence of liver dysfunction was 46.1% in HPBE(S) group, significantly higher than that in HLAMKO group (12.7%) (P＜0.01).CONCLUSION: TB patients with HBV should choose HLAMKO treatment because of fewer hepatotoxicity.

关键词： Anti-tuberculosis HBV

基于原位交联增容策略的增强PLA/NR共混物界面相容性和发泡性能研究

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陕西科技大学学报 2025年第1期43卷 73-80,100页

作者：王广静邵亮苏晨阳马春燕姬占有陕西科技大学化学与化工学院中国轻工业轻化工助剂重点实验室陕西西安710021

聚乳酸(PLA)是目前最具发展潜力的生物材料之一,但其韧性差,极大的限制了在塑料领域的发展与应用.已有研究发现天然橡胶(NR)的引入可以改善其韧性差的缺陷,但二者为不相容体系,发泡性能差.因此,本文基于原位交联增容原理,采用1,4-双(叔... 详细信息

聚乳酸(PLA)是目前最具发展潜力的生物材料之一,但其韧性差,极大的限制了在塑料领域的发展与应用.已有研究发现天然橡胶(NR)的引入可以改善其韧性差的缺陷,但二者为不相容体系,发泡性能差.因此,本文基于原位交联增容原理,采用1,4-双(叔丁基过氧异丙基)苯(BIPB)增强PLA和NR的界面相容性,并以超临界二氧化碳(scCO_(2))发泡技术制备了PLA/NR复合发泡材料.探究了不同BIPB含量对复合材料界面相容性、韧性及复合材料发泡行为的影响.结果表明,BIPB的引入显著增强了PLA/NR复合材料的相容性、韧性及发泡性能.当BIPB含量为0.25 phr时,PLA/NR复合材料的断裂伸长率从原来的25.75%增加到35.24%,提升了1.37倍;表观密度从初始的0.565 g·cm^(-3)下降至0.373 g·cm^(-3);平均泡孔尺寸从7.5μm下降至5.0μm.

关键词：聚乳酸天然橡胶 1,4-双(叔丁基过氧异丙基)苯超临界发泡相容性

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Domain Decomposition Method for a System of Quasivariational Inequalities

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Acta Mathematicae Applicatae Sinica 2009年第1期25卷 75-82页

作者： Shu-zi Zhou zhan-yong Zou guang-hua Chen Department of Applied Mathematics Hunan University Changsha 410082 China School of Mathematics & Computational Science Guangdong University of Business Studies Guangzhou510320 China

We propose a domain decomposition method for a system of quasivariational inequalities related to the HJB equation. The monotone convergence of the algorithm is also established.

关键词： Domain decomposition method system of quasivariational inequalities HJB equation monotoneconvergence

UAV maneuvering decision-making algorithm based on deep reinforcement learning under the guidance of expert experience

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Journal of Systems Engineering and Electronics 2024年第3期35卷 644-665页

作者： zhan guang zhanG Kun LI Ke PIAO Haiyin School of Electronics and Information Northwestern Polytechnical UniversityXi’an 710072China Science and Technology on Electro-Optic Control Laboratory Luoyang 471009China

Autonomous umanned aerial vehicle(UAV) manipulation is necessary for the defense department to execute tactical missions given by commanders in the future unmanned battlefield. A large amount of research has been devoted to improving the autonomous decision-making ability of UAV in an interactive environment, where finding the optimal maneuvering decisionmaking policy became one of the key issues for enabling the intelligence of UAV. In this paper, we propose a maneuvering decision-making algorithm for autonomous air-delivery based on deep reinforcement learning under the guidance of expert experience. Specifically, we refine the guidance towards area and guidance towards specific point tasks for the air-delivery process based on the traditional air-to-surface fire control ***, we construct the UAV maneuvering decision-making model based on Markov decision processes(MDPs). Specifically, we present a reward shaping method for the guidance towards area and guidance towards specific point tasks using potential-based function and expert-guided advice. The proposed algorithm could accelerate the convergence of the maneuvering decision-making policy and increase the stability of the policy in terms of the output during the later stage of training process. The effectiveness of the proposed maneuvering decision-making policy is illustrated by the curves of training parameters and extensive experimental results for testing the trained policy.

关键词： unmanned aerial vehicle(UAV) maneuvering decision-making autonomous air-delivery deep reinforcement learning reward shaping expert experience

NO_x reduction in the sintering process

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International Journal of Minerals,Metallurgy and Materials 2009年第2期16卷 143-148页

作者： Yan-guang Chen zhan-cheng Guo Zhi Wang Gen-sheng Feng State Key Laboratory of Multiphase Complex System Institute of Process Engineering Chinese Academy Sciences Beijing 100190 China Graduate University of Chinese Academy of Sciences Beijing 100049 China Key Laboratory of the Ministry of Education of China for Recycling ＆ Ecologic Metallurgy University of Science and Technology Beijing Beijing 100083China

A new process, NOx reduction with recycling flue gas and modifying coke breeze, was proposed. The effects of modified coke breeze and recycled flue gas on NOx reduction were investigated by sinter pot tests. The results show that the NOx reduction rate is over 10wt% in the sintering of modified coke breeze, the effects of the additives on NOx reduction are： CeO2〉CaO〉K2CO3. The NOx reduction rate increases with the amount of recycled flue gas, and is 22.35wt% in the sintering with recycling 30vol% of the flue gas. When 30vol% of the flue gas is recycled into the sintering of CeO2, CaO, and K2CO3 modified coke breeze, the NOx reduction rates are 36.10wt%, 32.56wt%, and 32.17wt%, respectively.

关键词： nitrogen oxide flue gas coke breeze cerium oxide sintering

Farmers using insurance and cooperatives to manage agricultural risks: A case study of the swine industry in China

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Journal of Integrative Agriculture 2019年第12期18卷 2910-2918页

作者： zhanG Yan-yuan JU guang-wei zhan Jin-tao College of Economics and Management Nanjing Forestry UniversityNanjing 210037P.R.China Chinese Academy of Agricultural Sciences Beijing 100081P.R.China College of Economics and Management Nanjing Agricultural UniversityNanjing 210095P.R.China

Purchasing agricultural insurance and joining agricultural cooperatives are two prevalent instruments used by farmers in China for dealing with agricultural risks. Data from 443 swine farmers in Jiangsu and Henan provinces of China were collected. Factors affecting the farmers’ decision to purchase agricultural insurance and join agricultural cooperatives were assessed. The possibility of simultaneous use of both instruments and the potential correlation between these two decisions was considered as well. Results showed that the farmers’ decision to use agricultural insurance and cooperatives was positively correlated, indicating that farmers who purchased agricultural insurance which mainly used to mitigate production risks were more likely to join agricultural cooperatives which more used to share market risks, and vice versa. Farmers’ knowledge of swine insurance and trust in the local government positively impacted the purchase of agricultural insurance, while education, years involved in swine production and scale of swine production positively impacted farmers joining agricultural cooperatives.

关键词： agricultural insurance agricultural cooperatives simultaneous decisions Bivariate Probit China