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Asymmetric Synthesis and Antitumor Activity of Spiro- Oxadiazole Derivatives from 1,4：3,6-Dianhydro-D-fructose

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Chinese Journal of Chemistry 2017年第9期35卷 1437-1444页

作者： Wenke Xu Yongxun Ge Yu Hou Yingju Liu Yingchun Hua Weiwei Han Zhiyan Qin Fengwu liu School of Pharmaceutical Sciences Zhengzhou University Zhengzhou Henan 450001 China Collaborative Innovation Center of Henan New Drug Research and Safety Evaluation Zhengzhou Henan 450001 China Zhengzhou Central Hospital Affiliated to Zhengzhou University Zhengzhou Henan 450007 China Oepartment of Medicine Kaifeng University Kaifeng Henan 475000 China

一系列 spiro-oxadiazoles 经由立体声从 1,4:3,6-dianhydro-D-fructose 和一种肺结核特效药被综合 -- 选择二拍子的圆舞反应顺序。最新综合的混合物的结构被建立由光谱分析。复合 2a 的绝对配置被单个水晶 X 光检查分析进一步证实。所... 详细信息

一系列 spiro-oxadiazoles 经由立体声从 1,4:3,6-dianhydro-D-fructose 和一种肺结核特效药被综合 -- 选择二拍子的圆舞反应顺序。最新综合的混合物的结构被建立由光谱分析。复合 2a 的绝对配置被单个水晶 X 光检查分析进一步证实。所有综合混合物被屏蔽为他们的在里面 vitro antitumor 活动，证明这些混合物对 A549 举办差的禁止的活动， MGC-803 肿瘤房间。

关键词：体外抗肿瘤活性不对称合成螺环衍生物合成化合物 e唑光谱分析法 X射线分析

Heterogeneous reaction of NO_2 on the surface of montmorillonite particles

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Journal of Environmental Sciences 2012年第10期24卷 1753-1758页

作者： Zefeng Zhang Jing Shang Tong Zhu Hongjun Li Defeng Zhao Yingju Liu Chunxiang Ye College of Environmental Sciences and Engineering Peking UniversityBeijing 100871China CMA Key Laboratory for Atmospheric Physics and Environment Nanjing University of Information Science and TechnologyNanjing 210044China

The studies on heterogeneous reactions over montmorillonite, which is a typical 2：1 layered aluminosilicate, will benefit to the Understanding of heterogeneous reactions on clay minerals. Montmorillonite can be classified as sodium montmorillonite or calcium montmorillonite depending on the cation presented between the different layers. Using diffuse reflectance infrared Fourier transform spectroscopy （DRIFTS）, the heterogeneous reaction mechanism of NO2 on the surface of montmorillonite was firstly investigated. Results showed that the reaction of NO2 on the surface of sodium and calcium montmorillonite fit a first-order kinetics, and the reaction duration of calcium montmorillonite was longer than that of sodium montmorillonite under the dry condition. For either sodium or calcium montmorillonite, the uptake coefficient decreased as humidity increased.

关键词： heterogeneous reaction uptake coefficient DRIFTS montmorillonite NO2

Directly Regioselective Protection of Secondary Hydroxyl Group on Ribosides in Aqueous Solution

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Chinese Journal of Chemistry 2013年第6期31卷 855-860页

作者： Ruigang Xu Fei liu Yingju Liu Beiqing Chen Feng-Wu liu School of Pharmaceutical Sciences Zhengzhou University Zhengzhou Henan 45000l China

包括 N 核糖甙， O 核糖甙和 2-deoxy-N-riboside 的各种各样的核糖甙的糖一半上的第二等的氢氧根的选择 benzoylation 被在水的 CH3CN 使用 benzoyl 氯化物和 Na2CO3 调查。benzoylation 的选择上的 aglycone 和糖一半的影响也被讨论。... 详细信息

包括 N 核糖甙， O 核糖甙和 2-deoxy-N-riboside 的各种各样的核糖甙的糖一半上的第二等的氢氧根的选择 benzoylation 被在水的 CH3CN 使用 benzoyl 氯化物和 Na2CO3 调查。benzoylation 的选择上的 aglycone 和糖一半的影响也被讨论。为 2,3-O-dibenzoylnucleosides 的准备的一个很有效的方法被开发。

关键词：水溶液选择性保护核苷羟基苯甲酰化苯甲酰氯碳酸钠糖苷

Photoreduction of CO_2 to methanol over Bi_2S_3/CdS photocatalyst under visible light irradiation

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Journal of Natural Gas Chemistry 2011年第4期20卷 413-417页

作者： Xin Li Juntao Chen Huiling Li Jingtian Li Yitao Xu Yingju Liu Jiarong Zhou The Guangdong Provincial Laboratory of Green Chemical Technology School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510641 Guangdong China Institute of Biomaterial College of ScienceSouth China Agricultural University Guangzhou 510642 Guangdong China

The Bi 2 S 3 , CdS and Bi 2 S 3 /CdS photocatalysts were prepared by direct reactions between their corresponding salt and thiourea in a hydrothermal autoclave. The photocatalytic activities of these photocatalysts for reducing CO 2 to CH 3 OH under visible light irradiation have been investigated. The results show that the photocatalytic activity and visible light response of Bi 2 S 3 are higher than those of CdS. The Bi 2 S 3 modification can enhance the photocatalytic activity and visible light response of CdS. The photocatalytic activity of Bi 2 S 3 /CdS hetero-junction photocatalyst was the highest and the highest yields of methanol was 613 μmol/g when the weight proportion of Bi 2 S 3 to CdS was 15%, which was about three times as large as that of CdS or two times of that of Bi 2 S 3 .

关键词： photocatalytic reduction carbon dioxide heterogeneous catalysts CdS Bi2S3 CO2 reduction

针对性心理护理对减轻耳鼻喉部手术患者术后疼痛程度的效果分析

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中国医学文摘（耳鼻咽喉科学） 2023年第6期38卷 208-210页

作者：刘英菊吉林省一汽总医院吉林长春130011

目的针对性心理护理对减轻耳鼻喉部手术患者术后疼痛程度的效果。方法选取我院收治的耳鼻喉部手术患者90例,随机分为观察组、参照组,各45例。参照组实施常规护理,观察组在参照组的基础上应用针对性心理护理。对比护理效果。结果观察组SA... 详细信息

目的针对性心理护理对减轻耳鼻喉部手术患者术后疼痛程度的效果。方法选取我院收治的耳鼻喉部手术患者90例,随机分为观察组、参照组,各45例。参照组实施常规护理,观察组在参照组的基础上应用针对性心理护理。对比护理效果。结果观察组SAS评分(49.65±5.42)分,优于参照组(53.67±6.11)分,差异明显(P<0.05);观察组VAS评分(2.94±1.64)分,优于参照组(4.05±1.31)分,差异明显(P<0.05);观察组PSQI评分(9.42±1.77)分,优于参照组(15.67±2.52)分,差异明显(P<0.05);观察组满意度95.56%,高于参照组80.00%,差异明显(P<0.05)。结论针对性心理护理可以在患者护理中发挥重要作用。

关键词：针对性心理护理耳鼻喉部手术疼痛程度心理状态

Extraordinary high-temperature mechanical properties in binder-free nanopolycrystalline WC ceramic

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Journal of Materials Science & Technology 2022年第2期97卷 169-175页

作者： Hongfeng Dong Baozhong Li BoBo liu Yang Zhang Lei Sun Kun Luo yingju Wu Mengdong Ma Bing liu Wentao Hu Julong He Dongli Yu Bo Xu Zhisheng Zhao Yongjun Tian Center for High Pressure Science(CHiPS) State Key Laboratory of Metastable Materials Science and TechnologyYanshan UniversityQinhuangdao 066004China School of Materials Science and Engineering Shaanxi University of TechnologyHanzhong 723001China

From the perspective of high-temperature applications,materials with excellent high-temperature mechanical properties are always desirable.The present work demonstrates that the binder-free nanopolycrystalline WC ceramic with an average grain size of 103 nm obtained by high-pressure and hightemperature sintering exhibits excellent mechanical properties at both room temperature and high temperature up to 1000℃.Specifically,the binder-free nanopolycrystalline WC ceramic still maintains a considerably high Vicker hardness H_(V)of 23.4 GPa at 1000℃,which is only 22%lower than the room temperature H_(V).This outstanding thermo-mechanical stability is superior to that of typical technical ceramics,e.g.SiC,Si_(3)N_(4),Al_(2)O_(3),etc.Nanocrystalline grains with many dislocations,numerous low-energy,highly stableΣ2 grain boundaries,and a relatively low thermal expansion coefficient,are responsible for the observed outstanding high-temperature mechanical properties.

关键词： Binder-free nanopolycrystalline WC High-pressure and high-temperature synthesis High-temperature mechanical properties Dislocation Σ2 Grain boundary

Reaction Scheme of Low-Temperature CO2 Methanation over Rh/TiO2 Catalyst

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Reaction Scheme of Low-Temperature CO2 Methanation over Rh/T...

哈萨克斯坦畜牧业产能潜力及中哈畜牧产能合作机遇

中国化学会·第一届全国二氧化碳资源化利用学术会议

作者： yingju Yang Jing liu Feng liu Jinchuan Zhang State Key Laboratory of Coal Combustion School of Energy and Power Engineering Huazhong University of Science and Technology

Rh/TiO has been regarded as a very promising catalyst for the low-temperature CO methanation. However, the atomic-level reaction mechanism that dictates the reactivity and selectivity of CO reduction over Rh/TiO catalyst remains elusive. The reaction mechanism governed by a delicate interplay of surface reaction chemistry and thermodynamics was systematically investigated using density functional theory. Theoretical results indicate that significant charges accumulate at the perimeter of the interface between support TiO and Rh nanoparticle. Metal-support interface is identified as the most active site for CO adsorption and activation over Rh/TiO catalyst. Compared with the direct C-O bond cleavage pathway and formate pathway, reverse water-gas shift(RWGS) reaction followed by CO hydrogenation is much more thermodynamically and kinetically favorable for CO methanation over Rh/TiO catalyst. The RWGS+CO hydrogenation pathway via HCOH dissociation dominates CO methanation due to the relatively lower energy barrier. H-mediated HOCO dissociation is identified as the rate-limiting step of CO methanation over Rh/TiO catalyst. These mechanistic insights can guide the rational design of catalyst active centers to boost the activity and selectivity of CO reduction.

关键词： CO2 methanation Rh/TiO2 catalyst Rate-limiting step Density functional theory

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中国饲料 2022年第17期 138-146页

作者：张颖举刘赛敏河南农业大学文法学院河南郑州450046 波兰格但斯克大学管理学院波兰格但斯克80-309

分析哈萨克斯坦2016—2020年主要畜禽生产指标表明,其畜牧业产能增长明显;但对比1990年独立前水平可以看出,其畜牧业产能仍处于恢复期。基于可用牧场承载力测算,哈萨克斯坦畜牧业至少具有25%的产能提升潜力。辽阔的牧场、丰富的粮食、... 详细信息

分析哈萨克斯坦2016—2020年主要畜禽生产指标表明,其畜牧业产能增长明显;但对比1990年独立前水平可以看出,其畜牧业产能仍处于恢复期。基于可用牧场承载力测算,哈萨克斯坦畜牧业至少具有25%的产能提升潜力。辽阔的牧场、丰富的粮食、强劲的市场需求、较高的行业利润率将有利于哈萨克斯坦畜牧业的产能扩张;但牧场退化、饲料不足、畜牧生产技术和服务落后、小规模分散养殖又制约着其产能潜力的实现。分析表明,中哈畜牧业具有互补性和开展产能合作的共同意愿,中企在哈萨克斯坦牧场恢复、饲料加工、动保产品、设施养殖设备与技术等方面具有比较优势和投资贸易机遇。

关键词：哈萨克斯坦中国畜牧业畜牧产能产能合作

Age hardening responses of as-extruded Mg-2.5Sn-1.5Ca alloys with a wide range of Al concentration

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Journal of Materials Science & Technology 2020年第3期38卷 39-46页

作者： Qiuyan Huang Yang liu Aiyue Zhang Haoxin Jiang Hucheng Pan Xiaohui Feng Changlin Yang Tianjiao Luo yingju Li Yuansheng Yang Institute of Metal Research Chinese Academy of SciencesShenyang110016China Key Laboratory for Anisotropy and Texture of Materials(MOE) School of Materials Science and EngineeringNortheastern UniversityShenyang110819China Research Center for Metallic Wires Northeastern UniversityShenyang110819China State Key Laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an710072China

This article aims to explore the age hardening responses of both as-extruded and as-aged Mg-2.5 Sn-1.5 Ca-x Al alloys(x=2.0,4.0 and 9.0 wt%,termed TXA322,TXA324 and TXA329,respectively)through microstructural and mechanical characterization.Results indicate that grain size of as-extruded TXA322,TXA324 and TXA329 alloys were^16μm,~10μm and^12μm,respectively.A number ofanddislocations were observed in all the as-extruded samples.Guinier–Preston(GP)zones were evidently identified in TXA322 alloy,while only a small number of Mg17 Al12 phases existed in both TXA324 and TXA329 alloys.An aging treatment facilitated the precipitation of a high number density of GP zones within the matrix of TXA322 alloy.In contrast,no obvious nano-precipitates were in as-aged TXA324 alloy.Numerous nano-Mg17 Al12 phases were formed through a following aging treatment in TXA329 alloy.In terms of mechanical properties,it is apparent that an increment in ultimate tensile strength of^46 MPa and^40 MPa was yielded in peak-aged TXA322 and TXA329 alloys,while no obvious variations in UTS were present in peak-aged TXA324 alloy,in comparison with the as-extruded counterparts.

关键词： Magnesium alloys Age hardening Precipitations Dislocations Mechanical properties