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Influence of SiC Contents in Al_2O_3-SiO_2 Castables on Resistance to PbO-rich Slag

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China's Refractories 2009年第3期18卷 6-10页

作者： YU Renhong ao ping ZHOU Ningsheng WEI Ruili henan University of Science ＆ Technology Luoyang 471003 China

Low cement Al2O3 - SiO2 castables was prepared using super grade bauxite （ w（ Al2O3 ）〉85% ） as aggregate, brown fused corundum, silicon carbide, Secar 71 CA cement, α-Al2O3 micropowder and microsilica as fine powders. The influence of SiC （0, 5 wt%, 10 wt%, and 15 wt% ）on resistance to PbO- rich slag was investigated by static crucible slag test （1 300℃ for 5 h, in air）. The slag corrosion mechanism of the castables was analyzed by means of SEM, EDS and XRD. The results show that the resistance of Al2O3 -SiO2 castables to PbO-rich slag is improved obviously by the addition of SiC. The corrosion mechanism of the PbO-rich slag can be discribed as that PbO in the slag reacts with SiO2 and Cao in Al2O3 - SiO2 castables, forming low-melting compounds （such as PbO · SiO2 and 2PbO · SiO2 ）.

关键词： Silicon carbide, Alumina silicacastables Slag resistance, Corrosion mechanism

Reverse Genetic Analysis of Transcription Factor Os Hox9, a Member of Homeobox Family, in Rice

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Rice science 2014年第6期21卷 312-317页

作者： AI Li-ping SheN ao Gao Zhi-chao LI Zheng-long SUN Qiong-lin LI Ying-ying LUAN Wei-jiang College of Life Science Tianjin Normal University / Tianjin Key Laboratory of Animal and Plant Resistance

Homeobox transcription factors participate in the growth and development of plants by regulating cell differentiation, morphogenesis and environmental signal response. To reveal the functions of these transcription factors in rice, we constructed the RNAi vectors of OsHox9, a member of homeobox family, and analyzed the function of OsHox9 using reverse genetics. The plant height and tillering number of RNAi transgenic plants decreased compared with those of wild-type plants. Reverse transcdption-polymerase chain reaction analysis showed that OsHox9 expression reduced in the transgenic plants with phenotypic variance, whereas that in the transgenic plants without phenotypic variance was similar to that in the wild-type plants. This result suggests that the phenotypes of the transgenic plants were caused by RNAi effects. The tissue-specificity of OsHox9 expression indicated that it was expressed in different organs, with high expression in stem apical medstem and young panicles. Subcellular location of OsHox9 demonstrated that it was localized on the cell membrane.

关键词： expression analysis homeobox transcription factor subcellular location reverse genetics rice RNA interference

NONAQUEOUS SERS:IMIDAZOLE IN METHANOL SOLUTION AT A SILVER ELECTRODE

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Chinese Chemical Letters 1991年第1期2卷 45-46页

作者： Ren ao Gu Ya ping Zong Xiao Kun Hu Department of Chemistry,Suzhou University,Suzhou,Jiangsu 215006

This paper emphasizes the observation of SERS spectra of imidazole /LiCl in methanol solution at a silver electrode and a qualitative explaina- tion of the relationship between heRS spectra and molecular vibrational m... 详细信息

关键词： SERS ORC In NONAQUEOUS SERS AT

Anterior cruciate ligament reconstruction using the bone-posterior cruciate ligament-bone allograft

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Chinese Medical Journal 2013年第4期126卷 674-678页

作者： JIao Chen ao Ying-fang LIU ping XIE Xing LIU Chen MA Yong Institute of Sports Medicine Peking University Third HospitalBeijing 100191 China

Background Allografts were widely used in anterior cruciate ligament （ACL） reconstruction for patients with ACL rupture of the knee. This study was to approve the feasibility of bone-posterior cruciate ligament-bone （BPCLB） allograft transplantation in ACL reconstruction. Methods Eight patients underwent ACL reconstructions with BPCLFI allografts and were followed up for an average period of 32 months after operation. Results Subjective parameters including Intemational Knee Documentation Committee （IKDC）, modified Larson knee ligament, Lysholm, and Tegner rating scales were much improved and side to side KT-2000 arthrometer difference was much less postoperatively. Pivot shift test was negative in all patients. The reconstructed ACL had satisfactory shape and tension. Conclusions BPCLB allograft is an optional choice for ACL reconstruction.

关键词： anterior cruciate ligament reconstruction bone-posterior cruciate ligament-bone allograft

A Generic Kinematic Model for Three Main Types of Five-axis Machine Tools

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International Journal of Plant Engineering and Management 2009年第4期14卷 243-249页

作者： YU Yang WEI Sheng-min LIU ping ao Zhi-qiang Key Laboratory of Ministry of Education for Contemporary Design and Integrated Manufacturing Technology Northwestern Polytechnical University Xi'an P. R. 710072 P.R. China Aeronautic and Mechanical Engineering College Nanchang Hangkong University Nanchang 330063 P.R. China

Material removal is one of the most used processes in manufacturing. Five-axis CNC machines are believed to be the best tools in sculptured surface machining. In this study, a generic and unified kinematic model was developed as a viable alternative to the particular solutions that are only applicable to individual machine configurations. This versatile model is then used to verify the feasibility of the two rotational joints within the kinematic chain of three main types of a five-axis machine-tool. This versatile model is very useful applied to the design of five-axis machine tools.

关键词： CNC machining of sculptured surfaces five-axis machine tool configuration kinematic model transformation matrix

Incidence of infectious complications is associated with a high mortality in patients with hepatitis B virus-related acute-on-chronic liver failure

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World Journal of Clinical Cases 2019年第16期7卷 2204-2216页

作者： Chen Wang De-Qiang Ma Sen Luo Chuan-Min Wang De-ping Ding You-You Tian Kang-Jian ao Yin-Hua Zhang Yue Chen Zhong-Ji Meng Department of Infectious Diseases Taihe HospitalHubei University of MedicineShiyan 442000Hubei ProvinceChina Institute of Biomedical Research Taihe HospitalHubei University of MedicineShiyan 442000Hubei ProvinceChina

BACKGROUND In China,hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF) is the most common liver failure characterized by serious clinical syndromes of liver decompensation with a very high *** and/or fungal infections are the most common complications that are associated with high short-term *** translocation from the intestine,impaired hepatic clearance,and immune paralysis of circulating immune cells are thought to contribute to infectious complications in liver *** control of bacterial and fungal infections is the key to improving HBV-ACLF *** prevention,early diagnosis,and timely treatment of bacterial and fungal infections are essential for treating *** To investigate the frequency and role of bacterial and fungal infections in patients with *** Patients with HBV-ACLF hospitalized at Taihe Hospital,Hubei University of Medicine from January 2014 to December 2017 were retrospectively ***-related information was retrieved from the hospital case database,including general information,blood biochemistry,complications,*** to the occurrence of secondary infection or not,the patients were divided into an infection group and a non-infection *** sites,types,and incidences of bacterial and fungal infections and the influence of infections on the prognosis of HBV-ACLF were statistically *** risk factors for infections were assessed by unconditional logistic *** There were 174 cases of HBV-ACLF that met the enrollment criteria,of which 114 (65.52%) were diagnosed with infectious *** occurred in the abdominal cavity (87 cases),respiratory tract (51 cases),urinary tract (18 cases),and biliary tract (10 cases).Patients with infectious complications had a significantly higher 28-d mortality (70.18%,80/114) than those without (40.00%,24/60)(70.18% vs 40.00%,P < 0.05).And patients with infectious complications had a m

关键词： hepatitis B Acute-on-chronic liver failure Bacterial infection Fungal infection Prognosis

掺混比例对生物质和煤流化床共气化特性影响的试验研究

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动力工程 2009年第10期29卷 977-983页

作者：鲁许鳌阎维平华北电力大学能源与动力工程学院电站设备状态监测与控制教育部重点实验室保定071003

采用新型床料在鼓泡流化床中进行了2种典型的木本和草本生物质与烟煤的空气-水蒸气气化试验,研究了生物质掺混比例对燃气组分和热值、气化效率及碳转化率等参数的影响规律.结果表明:当松木屑的掺混比例从0%增大到100%时,H2和CO的体积含... 详细信息

采用新型床料在鼓泡流化床中进行了2种典型的木本和草本生物质与烟煤的空气-水蒸气气化试验,研究了生物质掺混比例对燃气组分和热值、气化效率及碳转化率等参数的影响规律.结果表明:当松木屑的掺混比例从0%增大到100%时,H2和CO的体积含量分别增加了4.6%和4.4%,CO2的体积含量减少了3%,CH4和CnHm的含量也有所增加;当稻秸的掺混比例从0%增大到100%时,CO的体积含量先从25.8%上升至27.5%,再下降至25.3%,其他燃气组分的变化趋势与松木屑和煤气化的相类似;随着生物质掺混比例的增加,2种生物质和煤共气化的气化效率和碳转化率均有所提高,且在共气化过程中存在协同效应.

关键词：共气化流化床松木屑稻秸烟煤空气-水蒸气掺混比

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热噪声环境下偶极场驱动的量子比特动力学

物理学报 2023年第17期72卷 158-165页

作者：熊凡陈永聪敖平上海大学物理系定量生命科学国际研究中心上海200444 四川大学生物医学工程学院成都610065

量子计算相比于经典计算在处理某些复杂性问题时具有与生俱来的独特优势,从而受到广泛关注.要想实现大规模的量子计算,最关键的在于不断提高量子比特的保真度.由于量子比特的脆弱性,环境热噪声对其保真度具有极大影响.本文基于偶极场驱... 详细信息

量子计算相比于经典计算在处理某些复杂性问题时具有与生俱来的独特优势,从而受到广泛关注.要想实现大规模的量子计算,最关键的在于不断提高量子比特的保真度.由于量子比特的脆弱性,环境热噪声对其保真度具有极大影响.本文基于偶极场驱动量子比特的方式,采取随机动力学结构分解方法,并应用久保-爱因斯坦涨落耗散定理研究热噪声环境下的量子比特控制问题.偶极场具有3个方向的分量,而不仅仅只限于一个平面,这种控制方式可以更加灵活地控制量子态.在不考虑噪声的情况下,量子态能够100%的到达目标态.而在噪声环境中,热噪声会使得实际终态和目标终态存在由热涨落造成的偏差,成为影响量子保真度的主要因素.为此本文利用蒙特卡罗优化算法对驱动场进行优化,以此来进一步提高量子比特保真度.该方法的可行性在数值计算中得到了验证,可以为实验提供新的解决方案,用以进一步指导和评估实验.

关键词：量子比特偶极场热噪声保真度

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定量分析调控人类免疫缺陷病毒潜伏与激活的动力学机制

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生物化学与生物物理进展 2023年第2期50卷 385-396页

作者：熊瑞琪苏洋敖平上海大学物理系定量生命科学国际研究中心上海200444

目的治疗艾滋病最大的障碍在于无法根除人类免疫缺陷病毒(HIV)潜伏于人体细胞所形成的病毒存储库。构建描述病毒存储库建立分子机制的动力学模型需考虑生物体内的噪声环境和多重影响因素,本文通过一种全新的动力学结构分解方法将随机... 详细信息

目的治疗艾滋病最大的障碍在于无法根除人类免疫缺陷病毒(HIV)潜伏于人体细胞所形成的病毒存储库。构建描述病毒存储库建立分子机制的动力学模型需考虑生物体内的噪声环境和多重影响因素,本文通过一种全新的动力学结构分解方法将随机微分方程的确定性部分与随机性噪声分开,从而在仅需分析常微分方程不动点的情况下即可判断不同药物靶点的作用效果。方法使用连续的随机微分方程构建了HIV转录过程的动力学模型,简化了描述系统所需方程的维度,增大了模型的可探索空间,在此基础上,通过计算得到的势能函数和概率分布函数直观表示病毒潜伏与激活的不同表达状态以及它们之间的关系。结果定量分析了不同动力学参数对系统稳态和势函数的影响程度,分别得到了系统处于双稳态和单稳态时的参数范围,并将不同因素对动力系统分岔的影响程度与生物学实验结果对比,验证了本工作的理论基础。结论本文突破了以往离散、随机的方法,可以通过常微分方程定量分析HIV转录调控的动力学机制,有利于推广到处理高维情况,进一步研究艾滋病在生物体内的发生发展,从而指导设计实验寻找临床上的治疗方案。

关键词：人类免疫缺陷病毒常微分方程动力学结构分解双稳态分子开关势函数