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Journal of Environmental Sciences 2004年第2期16卷 316-320页

作者： HAOZheng-ping HUChun jiangzheng G.Q.LU ResearchCenterforEeo-EnvironmentalSciences ChineseAcademyofSciencesBeijing100085China. DepartmentofChemicalEngineering UniversityofQueenslandSt.LuciaQLD4072Australia

ZrO 2-Al 2O 3 composite oxides and supported Ni catalysts were prepared, and characterized by N 2 adsorption /desorption, X-ray diffraction(XRD) an d X-ray photoelectron spectroscopy(XPS) techniques. The catalytic performance and carbon deposition was also investigated. This mesoporous composite oxide is shown to be a promising catalyst support. An increase in the catalytic activity and stability of methane and carbon dioxide reforming reaction was resulted from the zirconia addition, especially at 5wt% ZrO 2 content. The Ni catalyst supported ZrO 2-Al 2O 3 has a strong resistance to sintering and the carbon deposition in a relatively long-term reaction.

关键词： oxides catalytic properties methane reforming carbon deposition

Lipopolysaccharide Could Be Internalized into Human Peripheral Blood Mononuclear Cells and Elicits TNF-α Release,but not via the Pathway of Toll-Like Receptor 4 on the Cell Surface

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Cellular & Molecular Immunology 2004年第5期1卷 373-377页

作者： HongZhou GuofuDing WeiLiu LiangxiWang YonglingLu HongweiCao jiangzheng DepartmentofPharmacology CollegeofMedicineThirdMilitaryMedicalUniversityChongqing400038China. MedicalResearchCenter SouthwesternHospitalThirdMilitaryMedicalUniversityChongqing400038China.

Lipopolysaccharide(LPS),the principal component of the outer membrane of Gram-negative bacteria,stimulates various cell types to release numerous proinflammatory mediators such as TNF-α,IL-6 and IL-12,which may damage cells and lead to organ injury,even sepsis and septic ***-like receptor 4(TLR4) has been identified as the receptor involved in the recognition of LPS,but the role of LPS uptake in activating signal transduction remains *** the present study,TNF-α was used as a marker of macrophages/ monocytes activated by LPS,and CQ was used as an inhibitor of endosome mature in order to definitude what stage of the signal transduction elicited by LPS was *** found that there indeed existed internalization of LPS and internalization partially participated in LPS signaling since CQ inhibited cytokine release,and decreased accumulation of FITC-LPS in *** contrast,anti-hTLR4 antibody could decrease cytokine release,but had no inhibition on accumulation of *** result revealed that inhibition of cytokine release was related to reduction of FITC-LPS accumulation in the *** TLR4 on the cell surface couldn't participate in internalization of ***,LPS signaling and internalization couldn't be viewed as mutually independent *** & Molecular Immunology.2004;1(5):373-377.

关键词： LPS TNF-α TLR4 internalization CQ

Prognostic tumor microenvironment gene and the relationship with immune infiltration characteristics in metastatic breast cancer

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BIOCELL 2022年第5期46卷 1215-1243页

作者： LU YANG YUN LIU BOKE ZHANG MENGSI YU FEN HUANG YANG WEN jiangzheng ZENG YANDA LU CHANGCHENG YANG Department of Medical Oncology The First Affiliated Hospital of Hainan Medical UniversityHaikou570102China Clinical Laboratory Center The First Affiliated Hospital of Anhui University of Chinese MedicineHefei230031China Department of Clinical Laboratory The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi830054China

The aim of this study was to reveal genes associated with breast cancer metastasis,to investigate their intrinsic relationship with immune cell infiltration in the tumor microenvironment,and to screen for prognostic *** expression data of breast cancer patients and their metastases were downloaded from the GEO,TCGA database.R language package was used to screen for differentially expressed genes,enrichment analysis of genes,PPI network construction,and also to elucidate key genes for diagnostic and prognostic ***’s r correlation was used to analyze the correlation between key genes and infiltrating immune *** screened 25 hub genes,FN1,CLEC5A,ATP8B4,TLR7,LY86,PTGER3 and other genes were differentially expressed in cancer and paraneoplastic ***,patients with higher expression of CD1C,IL-18 breast cancer had a better prognosis in the 10 years survival period,while patients with high expression of FN1,EIF4EBP1 tumors had a worse *** addition,TP53 and HIF1 genes are closely related to the signaling pathway of breast cancer *** this study,gene expression of ATP8B4 and CD1C were correlated with cancer tissue infiltration of CD8^(+)T lymphocytes,while GSE43816,GSE62327 and TCGA databases showed that CD8^(+)T lymphocytes were closely associated with breast cancer *** enrichment analysis of genes based on expression differences yielded key genes of prognostic value in the breast cancer microenvironment.

关键词： Tumor microenvironment Immune infiltration Prognostic biomarker Metastatic breast cancer

Fully Docking Beijing and Tianjin to Build Advantages of Langfang

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Fully Docking Beijing and Tianjin to Build Advantages of Lan...

Viewing the Development of Langfang City From the Perspective of Regional Economics

对接京津——产业经济行业发展

作者： Xu jiangzheng Wuhan University of Technologythe Third Affiliated Primary School of Pipeline Bureau Middle School

This paper analyzes the path problem of building Langfang as unique information industry gathering area and comprehensive informatization advanced district that jointing Beijing and *** paper studies the "Bohai Rim Leisure Business Center",which refers to the problems that constructing Langfang into a preferred place to leisure living,leisure office and leisure tourism for the large company,large organizations and successful people between Beijing and Tianjin.

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Viewing the Development of Langfang City From the Perspectiv...

Polynomial Analysis of DH Secrete Key and Bit Security

对接京津——产业经济行业发展

作者： Xu jiangzheng Wuhan University of Technologythe Third Affiliated Primary School of Pipeline Bureau Middle School

Langfang,the city at the edge of two metropolitan areas of Beijing and Tianjin,wants a new development,and it must grasp the positioning,build development platform and function docking *** paper puts forward idea of L...

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Wuhan University Journal of Natural Sciences 2005年第1期10卷 239-242页

作者： jiangzheng-tao XUWen-li WANGYu-min NationalKeyLaboratoryofIntegratedServiceNetworksXidianUniversity Xi＇an710071ShaanxiChina

In this paper, we lower the upper bound of the number of solutions of oracletransformation polynomial F(x) over GF(q) So one can also recover all the secrete keys with fewercalls We use our generalized ' even-and-odd test' method to recover the least significant p-adic'bits' of representations of the Lucas Cryptosystem secret keys x Finally, we analyze the EfficientCompact Subgroup Trace Representation (XTR) Diffic-Hellmen secrete keys and point out that if theorder of XIR-subgroup has a specialform then all the bits of the secrete key of XIR ean be recoveredform any bit of the exponent x.

关键词： public-key cryptosystem security analysis polynomial transformation bitsecurity Diffie-Hellman oracle

基于灵敏度分析法的风力发电系统电压稳定性研究

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基于灵敏度分析法的风力发电系统电压稳定性研究

作者：蒋拯兰州理工大学

学位级别：硕士

风力发电作为目前技术最为成熟的一种可再生能源的利用形式,近些年来得到迅猛发展。但由于风力的随机性、间隙性和不稳定性,风电场输出功率是动态变化的,这对风电并网运行造成了一定局限,成为阻碍风电场大规模投入的重要因素。同时,风... 详细信息

风力发电作为目前技术最为成熟的一种可再生能源的利用形式,近些年来得到迅猛发展。但由于风力的随机性、间隙性和不稳定性,风电场输出功率是动态变化的,这对风电并网运行造成了一定局限,成为阻碍风电场大规模投入的重要因素。同时,风电场在向系统输送有功功率的同时还会吸收大量的无功,而电压稳定性与无功功率关系密切,因此大型风电场的接入会对系统的电压稳定性产生一定的影响。本文主要研究了基于灵敏度分析法的风力发电系统的电压稳定性,主要工作内容如下：基于连续潮流算法(CPF)进行裕度灵敏度分析,提出利用系统临界点附近的正切向量,并结合右特征向量与右奇异向量推导出电压稳定指标,此指标可用于描述影响系统稳定性的关键因素。通过对传输裕度预估计算,得出负荷裕度关于励磁系统参数、网络参数以负荷参数灵敏度的计算,并将其应用到判断系统敏感节点、选取最合适无功补偿位置以及负荷增长对电压稳定性影响的研究之中。分析了集成双馈异步风电机组通过不同输电线路接入不同母线时对电力系统的影响,并利用IEEE-39节点测试系统将结果和以前的工作进行比较。比较结果表明,风力发电机组通过输电线路接入不同母线会导致现有同步发电机的动态响应速度发生延迟,而这些延迟又会反过来影响母线电压幅值。研究结果同时说明利用不同的接入电压接入风机时对于基本情况下的系统并没有显著的影响。对具有随机性与间歇性的风力发电机进行建模,并将其用于与系统负荷裕度相关的电压稳定裕度的测量。为了模拟负荷增长时风能注入随机性与间歇性的不断变化特性,提出利用风速的Weibull分布来模拟随机风速的特性。引入异步风力发电机的转差作为一个新的状态变量,从而可以表述出包含此状态变量的新的功率平衡方程式。利用平均机电能量转换与风机机械功率之间的平衡来体现风能随机性与间歇性的不确定性。在非线性控制领域,研究平衡点的随机性与风力发电不确定性之间的关系,并利用新的功率方程表达式的雅克比矩阵推导出基于风机终端母线电压的灵敏度指标和考虑风速随机性与间歇性的电压稳定灵敏度指标,此指标通过转差作用考虑了风速的随机性和间歇性。此外,对于不同风速分布下关于负荷的概率稳定裕度也利用提出的CPF和Monte Carlo方法进行了研究。

关键词：电压稳定性灵敏度分析裕度灵敏度传输裕度估计 Weibull分布连续潮流

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应用反短/窄沟效应优化亚阈值SRAM单元

哈尔滨工业大学学报 2017年第4期49卷 61-65页

作者：蔡江铮袁甲陈黎明黑勇中国科学院微电子研究所智能感知中心北京100029

为缓解传统存储器单元尺寸设计方法在亚阈值区引入的面积和外围电路开销问题,采用晶体管的反短沟效应和反窄沟效应改进传统方法,不仅解决了亚阈值电压下单元面积和外围辅助电路开销过大的问题,还进一步提升了单元的噪声容限和读写速度.... 详细信息

为缓解传统存储器单元尺寸设计方法在亚阈值区引入的面积和外围电路开销问题,采用晶体管的反短沟效应和反窄沟效应改进传统方法,不仅解决了亚阈值电压下单元面积和外围辅助电路开销过大的问题,还进一步提升了单元的噪声容限和读写速度.以10管静态随机存储器单元为研究对象,基于中芯国际130 nm工艺进行物理实现,测试结果表明,相比于传统方法,所提出的尺寸设计方法节省单元面积开销76%,提升静态噪声容限30.5%,使静态随机存储器能稳定地在0.32 V的电压下工作.

关键词：亚阈值静态随机存储器尺寸设计反窄沟效应反短沟效应

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近阈值非预充静态随机存储器

西安电子科技大学学报 2018年第1期45卷 106-111页

作者：蔡江铮黑勇袁甲陈黎明中国科学院微电子研究所智能感知中心北京100029 中国科学院大学微电子学院北京100029

为了降低静态随机存储器在处理声音和视频数据时的功耗,提出一款新型的非预充单元.相比常规6管和8管单元,其读操作消除了预充机制,抑制了无效的翻转,因此功耗得到显著优化.本单元通过多阈值技术,在保证低电压区域读噪声容限的同时也加... 详细信息

为了降低静态随机存储器在处理声音和视频数据时的功耗,提出一款新型的非预充单元.相比常规6管和8管单元,其读操作消除了预充机制,抑制了无效的翻转,因此功耗得到显著优化.本单元通过多阈值技术,在保证低电压区域读噪声容限的同时也加强了数据读出的能力.而且通过引入切断反馈环的机制,有效地提升了单元写能力.此外,在存储阵列中应用半斯密特反相器,大幅地提升了静态随机存储器读操作的性能.基于SMIC 130nm工艺,分别实现容量为6kbit的非预充和常规8管静态随机存储器测试芯片.测试和仿真数据表明,这种新型存储器相比常规8管存储器在功耗的抑制上具有显著优势,可以作为低功耗应用的良好选择.

关键词：静态随机存储器非预充声音和视频低功耗

嵌入金属填充物的复合结构声学覆盖层吸声特性研究

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噪声与振动控制 2024年第5期44卷 56-61,119页

作者：应童杨将政陶猛贵州大学机械工程学院贵阳550025

设计一种在声波入射端为半无限大水域工况下使用的,内含圆柱空腔、钨板以及铝制框架的复合结构声学覆盖层。利用仿真软件建立其有限元模型,对比该复合结构覆盖层与仅含空腔结构覆盖层的声学特性,同时通过两种覆盖层的位移云图对两者的... 详细信息

设计一种在声波入射端为半无限大水域工况下使用的,内含圆柱空腔、钨板以及铝制框架的复合结构声学覆盖层。利用仿真软件建立其有限元模型,对比该复合结构覆盖层与仅含空腔结构覆盖层的声学特性,同时通过两种覆盖层的位移云图对两者的位移变化特点及相应吸声机理进行分析,随后探究覆盖层的几何参数对其吸声性能的影响。研究表明,若以吸声系数0.95作为标准,该复合结构声学覆盖层具有8568 Hz的吸收范围,具有宽带、高吸声的特点。

关键词：声学声学覆盖层声学特性复合结构空腔金属填充物