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Cypripediquinone A, a new phenanthraquinone from Cypripedium macranthum (Orchidaceae)

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Chinese Chemical Letters 2000年第1期11卷 37-38页

作者： jian hua ju jun Shan YANG Jin LI Pei Gen XIAO (Institute of Medicinal Plant Development. Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100094) Chinese Acad Med Sci Inst Med Plant Dev Beijing 100094 Peoples R China Peking Union Med Coll Beijing 100094 Peoples R China

A new phenanthraquinone, cypripediquinone A, was isolated from the rhizome of Cypripedium macranthum ( Orchidaceae ) and its structure was established as 2,4,7-trimethoxy-9, 10- phenanthraquinone mainly by spectroscop... 详细信息

关键词： Cypripedium macranthum cypripediquinone A

Effect of Substrate Temperature on the Selective Deposition of Diamond Films

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Advances in Manufacturing 2000年第2期4卷 151-154页

作者： Wen-guang Zhang Yi-ben Xia jian-hua ju Lin-jun Wang School of Material Science and Engineering Shanghai University Shanghai China

Selective deposition of diamond film on patterned Si (100) substrates has been achieved by using microwave plasma chemical vapor deposition (MPCVD) method. The films have been characterized by scanning electron microscope (SEM) and Raman spectrum. The influence of substrate temperature on the nucleation behavior of diamond was discussed in detail and the optimized deposition condition has been obtained.

关键词： diamond films deposition chemical vapor deposition (CVD)

Maintaining moderate levels of hypochlorous acid promotes neural stem cell proliferation and differentiation in the recovery phase of stroke

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Neural Regeneration Research 2025年第3期20卷 845-857页

作者： Lin-Yan huang Yi-De Zhang Jie Chen Hai-Di Fan Wan Wang Bin Wang ju-Yun Ma Peng-Peng Li Hai-Wei Pu Xin-Yian Guo jian-Gang Shen Su-hua Qi School of Medical Technology Xuzhou Key Laboratory of Laboratory DiagnosticsXuzhou Medical UniversityXuzhouJiangsu ProvinceChina School of Pharmacy Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina Department of Laboratory Medicine Branch Hospital of Huai’an First People’s HospitalHuai’anJiangsu ProvinceChina Department of Laboratory Medicine the Affiliated Hospital of Xuzhou Medical UniversityXuzhouJiangsu ProvinceChina School of Chinese Medicine The University of Hong KongHong Kong Special Administrative RegionChina

It has been shown clinically that continuous removal of ischemia/reperfusion-induced reactive oxygen species is not conducive to the recovery of late ***,previous studies have shown that excessive increases in hypochlorous acid after stroke can cause severe damage to brain *** previous studies have found that a small amount of hypochlorous acid still exists in the later stage of stroke,but its specific role and mechanism are currently *** simulate stroke in vivo,a middle cerebral artery occlusion rat model was established,with an oxygen-glucose deprivation/reoxygenation model established in vitro to mimic *** found that in the early stage(within 24 hours)of ischemic stroke,neutrophils produced a large amount of hypochlorous acid,while in the recovery phase(10 days after stroke),microglia were activated and produced a small amount of hypochlorous ***,in acute stroke in rats,hypochlorous acid production was prevented using a hypochlorous acid scavenger,taurine,or myeloperoxidase inhibitor,4-aminobenzoic acid *** results showed that high levels of hypochlorous acid(200μM)induced neuronal apoptosis after oxygen/glucose deprivation/***,in the recovery phase of the middle cerebral artery occlusion model,a moderate level of hypochlorous acid promoted the proliferation and differentiation of neural stem cells into neurons and *** suggests that hypochlorous acid plays different roles at different phases of cerebral ischemia/reperfusion *** levels of hypochlorous acid(5 and 100μM)promoted nuclear translocation ofβ-*** transfection of single-site mutation plasmids,we found that hypochlorous acid induced chlorination of theβ-catenin tyrosine 30 residue,which promoted nuclear ***,our study indicates that maintaining low levels of hypochlorous acid plays a key role in the recovery of neurological function.

关键词： cell differentiation cerebral ischemia/reperfusion injury chlorination hypochlorous acid microglia neural stem cell neurogenesis nuclear translocation stroke β-catenin

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听力障碍群体的保持性注意发展

内蒙古师范大学学报（自然科学汉文版） 2012年第1期41卷 46-50页

作者：程黎施建农蹇菊华张兴利北京师范大学教育学部北京100875 中国科学院心理研究所北京100101 四川省广元市苍溪陵江小学四川苍溪628400

为了研究听力障碍儿童到成人的保持性注意发展的变化,采用瑞文标准推理测验筛选出207名智力正常的听力障碍儿童和听力正常儿童及成人作为被试,以划消测验作为实验材料,记录被试的加工速度、击中率和虚报率.结果显示:听力障碍和听力正常... 详细信息

为了研究听力障碍儿童到成人的保持性注意发展的变化,采用瑞文标准推理测验筛选出207名智力正常的听力障碍儿童和听力正常儿童及成人作为被试,以划消测验作为实验材料,记录被试的加工速度、击中率和虚报率.结果显示:听力障碍和听力正常被试的加工速度都随年龄的增长而加快;7～9岁组的听力障碍被试的击中率显著低于听力正常组,其他年龄组的听力障碍被试和正常被试的击中率没有显著差异;7～14岁的听力障碍被试的虚报率显著高于听力正常被试.听力障碍被试和听力正常被试在所有指标上的发展趋势都相似,前者只有在青少年期的专注程度不如听力正常被试,对非目标的抑制能力比较弱.同时也必须看到,听力障碍被试在注意保持的时间分布上更好,他们能更为持久地维持注意.

关键词：听力障碍群体保持性注意认知发展划消测验

Clinicopathological differences between patients with schistosomal appendicitis and non schistosomal appendicitis:A retrospectively study of past ten years

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World Journal of Clinical Cases 2025年第2期13卷 24-32页

作者： Xiao-Yi Wang Yao Hao Zi-jian Wang Xiu-Liang Xu jiang-hua Yang Department of Infectious Diseases The First Affiliated of Wannan Medical CollegeWuhu 241001Anhui ProvinceChina

BACKGROUND Chronic schistosomiasis causes multiple organ and multiple system diseases,especially the digestive *** eggs are mainly deposited in the stomach,liver and colorectal,but a few eggs are deposited in the appendix and cause *** present,there are few studies on schistosomal *** To explore the differences in epidemiological,clinical and pathological characteristics between schistosomal appendicitis and non-schistosomal appendicitis over the past decade in order to assess the impact of schistosomiasis on *** The differences of general data,clinical data and laboratory examination data of patients with appendicitis from October 2013 to October 2023 were retrospectively *** patients were divided into two groups for *** were 136 patients in schistosomal appendicitis group and 5418 patients in non-schistosomal appendicitis *** Schistosomal appendicitis accounted for 2.45%of all patients with appendicitis,and the annual proportion in the past decade was 2.2%,2.9%,1.8%,1.9%,3.4%,3.1%,1.9%,1.6%,3%,2.6%,*** prevalence of schistosomal appendicitis was middle-aged and elderly males,with an average age of 61.73±15.335 *** main population of non-schistosomal appendicitis was middle-aged men,with an average age of 35.8±24.013 years(P<0.001).The distribution of pathological types of appendicitis was different between the two groups(P<0.001).The incidence of acute suppurative appendicitis in non-schistosomal appendicitis was higher than that in schistosomal appendicitis[odds ratio(OR)=0.504;95%confidence interval(CI):0.349-0.728;P<0.001].The proportion of acute attack of chronic appendicitis in schistosomal appendicitis was higher than that in non-schistosomal appendicitis(OR=2.614;95%CI:1.815-3.763;P<0.001).The proportion of schistosomal appendicitis patients complicated with colorectal cancer was higher than that of nonschistosomal appendicitis patients(OR=5.087;95%CI:1.427-

关键词： Schistosomal appendicitis Schistosomiasis Appendix Colorectal cancer Clinicopathological characteristics

用OpenGL和MFC实现NURBS曲面的绘制及裁剪

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上海大学学报（自然科学版） 2004年第4期10卷 367-370,375页

作者：郭建华鞠鲁粤上海大学机电工程与自动化学院上海200436

NURBS方法因其表示法的同一性、形状控制灵活性,在曲面造型和重构中具有重要作用.该文通过分析,完成了在MFC中用OpenGL实现NURBS曲面的绘制及裁剪,为在逆向工程中实现基于型值点的曲面拟合和裁剪奠定了基础.

关键词： OpenGL MFC NURBS曲面

Asymmetric Synthesis and Crystal Structure of a Bioactive Morpholine Derivative

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Chinese Journal of Structural Chemistry 2007年第5期26卷 515-518页

作者： WANG jian-Ping FU Yong-ju WANG jian-Ge QIN jian-hua CHEN Qing-hua Department of Chemistry Luoyang Normal University Luoyang 471022China Chemical Engineering ＆ Pharmaceutics College Henan Universityof Science and Technology Luoyang 471003 China

A novel morpholine derivative was synthesized by Michael addition/internal nucleophilic substitution of 4-（L）-menthyloxy（1R,2S,5R）-butenolide with phenyl-glyalcohol under mild condition, and its structure was determined by X-ray diffraction. The target compound belongs to orthorhombic, space group P212121 with a = 5.7729（7）, b = 11.5032（14）, c = 25.161（3）A, Mr = 319.35, Z = 4, V = 1670.8（4）A^3, Dc = 1.270 g/cm3, μ（MoKα） = 0.094 mm^-1, F（000） = 680, Flack = 0.01（2）, R = 0.0398 and wR = 0.0914.

关键词： morpholine derivative α-phenyl-glyalcohol,4-(L)-menthyloxy-butenolide asymmetric synthesis

一种由最大允差确定的散乱数据点云采样网格大小的算法

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上海大学学报（自然科学版） 2003年第1期9卷 35-37页

作者：严建华刘鑫鞠鲁粤上海大学机械电子工程与自动化学院上海200072

在逆向工程中,散乱数据点云获取后如何预处理(滤波、压缩和网格大小的划分)是关键,它的处理得当与否直接关系到后续的曲面重构工作.鉴于此,该文提出了一种基于最大允许误差而确定的散乱数据点云采样网格大小的算法,在实践中已取得良好... 详细信息

在逆向工程中,散乱数据点云获取后如何预处理(滤波、压缩和网格大小的划分)是关键,它的处理得当与否直接关系到后续的曲面重构工作.鉴于此,该文提出了一种基于最大允许误差而确定的散乱数据点云采样网格大小的算法,在实践中已取得良好的效果.

关键词：逆向工程曲面重构散乱数据点云采样网格最大允差曲面造型 NURBS曲面模型

Characterization of silicon microstrip sensors for space astronomy

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Nuclear Science and Techniques 2020年第10期31卷 13-22页

作者： Jia-ju Wei jian-hua Guo Yi-Ming Hu Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China Key Laboratory of Dark Matter and Space Astronomy Chinese Academy of SciencesNanjing 210023China

Silicon microstrip detectors are widely used in experiments for space *** the detector is assembled,extensive characterization of the silicon microstrip sensors is indispensable and *** work electrically evaluates a series of sensor parameters,including the depletion voltage,bias resistance,metal strip resistance,total leakage current,strip leakage current,coupling capacitance,and interstrip *** methods are used to accurately measure the strip leakage current,and the test results match each other *** measuring the coupling capacitance,we extract the correct value based on a SPICE model and two-port network *** addition,the expression of the measured bias resistance is deduced based on the SPICE model.

关键词： Silicon microstrip sensor Space astronomy Characterization SPICE model