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网络交互能力的量表开发与检验

管理学报 2015年第9期12卷 1369-1378页

作者：庄贵军李苗凌黎西安交通大学管理学院

根据此前网络交互能力的概念和维度,结合实地访谈的结果,以图书馆与读者在网络环境下的沟通与互动为研究情境,开发和检验网络交互能力的量表。该量表是一个由交互导向、IT技术能力、IT人员能力和网络交互技术运用能力等4个维度组合而成... 详细信息

根据此前网络交互能力的概念和维度,结合实地访谈的结果,以图书馆与读者在网络环境下的沟通与互动为研究情境,开发和检验网络交互能力的量表。该量表是一个由交互导向、IT技术能力、IT人员能力和网络交互技术运用能力等4个维度组合而成的构成性量表,但是每一维度又是一个多题项的反映性量表。通过对126份调查数据的统计分析,本文检验了这一量表。检验结果显示,这一量表具有良好的信度、表面效度、内容效度、收敛效度、判别效度和工具效度。这为今后探讨网络交互能力的前因、后果以及形成机制打下了良好的基础。

关键词：网络交互能力网络交互技术量表信度量表效度

The neonatal ketone body is important for primordial follicle pool formation and regulates ovarian ageing in mice

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life Metabolism 2022年第2期1卷 149-160页

作者： Xin-Ying Wang Xin-Ge Zhang Yong-Juan Sang Dan-Yang Chong Xiao-Qiang Sheng Hai-Quan Wang Chao-Fan Yang guijun Yan Hai-Xiang Sun Chao-Jun li State Key Laboratory of Reproductive Medicine and China International Joint Research Center on Environment and Human Health Center for Global HealthSchool of Public HealthNanjing Medical UniversityNanjingJiangsu 211166China Center for Reproductive Medicine Department of Obstetrics and GynecologyNanjing Drum Tower Hospitalthe Affiliated Hospital of Nanjing University Medical SchoolNanjing UniversityNanjingJiangsu 210093China Ministry of Education Key Laboratory of Model Animal for Disease Study Model Animal Research Center of Nanjing UniversityNanjingJiangsu 210093China

Adverse nutritional conditions during the perinatal stage are related to early menopause in adulthood;however,the underlying mechanism is still ***,we revealed that colostrum-activated ketone body elevation during the postnatal stage regulated primordial follicle reservoir size and then affected ovarian *** found that the expression of the ketogenesis rate-limiting enzyme 3-hydroxy-3-methylglutaryl-CoA synthase 2(Hmgcs2)was largely enhanced during primordial follicle pool formation after birth and might be activated in the ovaries by *** oxygen species(ROS)elevation in the ovaries leads to follicle apoptosis to deplete damaged follicles,while Hmgcs2 deficiency enhances follicle apoptosis and thus decreases the size of the primordial follicle pool and leads to premature ovarian ageing(POA),which might be related to the activation of cellular endogenous antioxidant *** these defects could be rescued by ketone body administration,which suppressed ROS-activated follicle *** results suggest that the internal metabolic homeostasis of newborn mice is critical for the primordial reservoir and that any intrauterine and perinatal undernutrition could result in POA.

关键词： ketone body primordial follicle pool Hmgcs2 ROS POA

前向正则模糊神经网络依K-积分模的泛逼近能力

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应用数学学报 2013年第1期36卷 141-152页

作者：王贵君李丹天津师范大学数学科学学院天津300387 东北财经大学津桥商学院基础部大连116622

针对前向正则模糊神经网络引进K-拟可加积分和K-积分模概念,应用积分转换定理研究了该网络在K-积分模意义下对模糊值简单函数类的泛逼近能力,进而在有限K-拟可加测度空间上,借助模糊值简单函数为桥梁获得了前向正则模糊神经网络依K-积... 详细信息

针对前向正则模糊神经网络引进K-拟可加积分和K-积分模概念,应用积分转换定理研究了该网络在K-积分模意义下对模糊值简单函数类的泛逼近能力,进而在有限K-拟可加测度空间上,借助模糊值简单函数为桥梁获得了前向正则模糊神经网络依K-积分模对(?)-可积有界模糊值函数类仍具有泛逼近性.该结果表明前向正则模糊神经网络对连续模糊系统的逼近能力可以推广为对一般可积系统的逼近能力.

关键词：泛逼近性诱导算子 K-积分模 u-可积有界模糊神经网络

自适应调制的正交频分复用多模光纤通信系统性能分析

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中国激光 2008年第4期35卷 582-586页

作者：李兆玺胡贵军孔令杰吉林大学通信工程学院光通信系吉林长春130012

随着短距离通信网的不断发展,多模光纤(MMF)已经成为实现高速大容量信息传输的理想介质,但多模光纤严重的模式色散限制了其传输能力.为了提高多模光纤的传输能力,设计了基于自适应调制(AM)的正交频分复用(OFDM)多模光纤通信系统.提出了... 详细信息

随着短距离通信网的不断发展,多模光纤(MMF)已经成为实现高速大容量信息传输的理想介质,但多模光纤严重的模式色散限制了其传输能力.为了提高多模光纤的传输能力,设计了基于自适应调制(AM)的正交频分复用(OFDM)多模光纤通信系统.提出了适用于该系统的自适应比特分配算法,并通过仿真证明了该算法的有效性.在此基础上重点分析了自适应调制对系统性能的影响,对比了自适应前后不同传输速率、不同信道情况下的误码特性.结果表明,自适应调制能较好地克服深衰落点对系统性能的影响,有效降低了系统误码率(BER).

关键词：光通信自适应调制正交频分复用多模光纤

基于Taguchi方法的碳纤维复合材料拉挤工艺优化

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工业建筑 2013年第6期43卷 9-13,26页

作者：洪斌咸贵军李惠哈尔滨工业大学土木工程学院哈尔滨150090

利用Taguchi方法,研究多个拉挤工艺参数(如模具温度、拉挤速率等)、树脂种类及纤维含量等对制备的碳纤维增强树脂基复合材料(CFRP)板材力学性能的影响,并利用优化的拉挤工艺参数,制备高力学性能的CFRP板材。结果表明:纤维含量、环氧树... 详细信息

利用Taguchi方法,研究多个拉挤工艺参数(如模具温度、拉挤速率等)、树脂种类及纤维含量等对制备的碳纤维增强树脂基复合材料(CFRP)板材力学性能的影响,并利用优化的拉挤工艺参数,制备高力学性能的CFRP板材。结果表明:纤维含量、环氧树脂种类、牵引速率和模具温度是影响CFRP拉挤板材力学性能的主要因素,而后固化温度、纤维张力的影响较小,胶槽温度的影响可以忽略不计。

关键词： CFRP板材力学性能优化工艺参数

基于引导滤波与双树复小波变换的红外与可见光图像融合

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激光与光电子学进展 2023年第10期60卷 100-110页

作者：姜迈沙贵君李宁中国刑事警察学院侦查与反恐怖学院辽宁沈阳110854 中国科学院沈阳自动化研究所海洋信息技术装备中心辽宁沈阳110169

针对传统图像融合算法目标不突出、边缘及纹理细节不清晰或缺失、对比度降低等问题,提出一种基于引导滤波(GF)和双树复小波变换(DTCWT)的红外与可见光图像融合算法。首先,根据红外与可见光图像的特点,在DTCWT分解前对可见光图像进行GF增... 详细信息

针对传统图像融合算法目标不突出、边缘及纹理细节不清晰或缺失、对比度降低等问题,提出一种基于引导滤波(GF)和双树复小波变换(DTCWT)的红外与可见光图像融合算法。首先,根据红外与可见光图像的特点,在DTCWT分解前对可见光图像进行GF增强,同时对经DTCWT分解后的红外高频分量进行GF增强;然后,根据不同频带系数特点,提出一种基于显著性的自适应加权规则对红外与可见光低频子带分量进行融合,采用一种基于拉普拉斯能量和(SML)与梯度值向量的规则对不同尺度、方向下高频子带进行融合;最后,对融合后的高、低频系数进行DTCWT逆变换以得到最终重构图像。将所提算法与6种高效融合算法进行对比评价,实验结果表明,所提融合算法在不同场景下具有显著的目标特征,同时背景纹理和边缘细节清晰,整体对比度适宜,并且在4类客观评价指标上也取得了较好的效果。

关键词：图像处理红外与可见光引导滤波双树复小波变换显著性自适应加权拉普拉斯能量和与梯度值向量

Biphasic insulin aspart 30 improved glycemic control in Chinese patients with type 2 diabetes poorly controlled on oral glucose-lowering drugs： a subgroup analysis of the A1chieve study

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Chinese Medical Journal 2014年第2期127卷 208-212页

作者： Chen liming Xing Xiaoyan Lei Minxiang liu Jie Shi Yongquan li Pengqiu Qin guijun li Chengjiang li Yukun Wang Qing Gao Tianshu Hu ling Wang Yangwei Yang Wenying Key Laboratory of Hormones and Development (Ministry of Health) Metabolic Diseases Hospital & Tianjin Institute of Endocrinology Tianjin Medical University Tianjin 300070 China Department of Endocrinology China-Japan Friendship Hospital Beijing 100029 China Department of Endocrinology Xiangya Hospital of Central South University Changsha Hunan 410008 China Department of Endocrinology Shanxi Provincial People's Hospital Taiyuan Shanxi 030012 China Department of Endocrinology Shanghai Changzheng Hospital Shanghai 200032 China Sichuan Provincial People's Hospital Chengdu Sichuan 610072 China Department Of Endocrinology First Affiliated Hospital of Zhengzhou University Zhengzhou Henan 450052China Department of l~ndocrinology First Affiliated Hospital Zhejiang University School of Medicine Hangzhou Zhejiang 310003 China Department of Endocrinology Third Hospital of Hebei Medical University Shiiiazhuang Hebei 050051 China Department of Endocrinology China-Japan Union Hospital Changchun Jilin 130033 China University of Traditional Chinese Medicine Shenyang Liaoning 110032 China Department of Endocrinology Third Affiliated Hospital of Nanchang University Nanchang Jiangxi 330008 China Department of Endocrinology Shaanxi Provincial People's Hospital Xi'an Shaanxi 710068 China

Background The effectiveness and safety of initiating biphasic insulin aspart 30 in patients who were poorly controlled on oral glucose-lowering drugs were studied in randomized controlled trials,while results from clinical practice remain *** subgroup analysis was to provide such findings from a large-scale non-interventional *** A1chieve was a multinational,prospective,open-label,non-interventional,24-week study in patients with type 2 diabetes initiating insulin analogues in 28 countries across Asia,Africa,Europe,and Latin *** physician had taken the decision to use this insulin,any patient with type 2 diabetes who was not treated with or who had started the study insulin within 4 weeks before inclusion was *** were treated with study insulin alone or in combination with oral glucose-lowering *** on adverse drug reactions,hypoglycemia and glycemic control were collected at baseline,week 12 and *** is a report of a Chinese subgroup analysis from the A1chieve *** Totally,4 100 patients constituted this *** serious adverse drug reactions were *** of total,major,nocturnal hypoglycemic events （events/patient per year） were 1.47,0.10,0.31 at baseline and 1.35,0.00,0.22 at week 24,*** control was improved as measured by hemoglobin A1c （mean 9.3％ to 7.0％,reduction -2.3％）,fasting plasma glucose （mean 10.2 to 6.8 mmol/L,reduction-3.5 mmol/L） and postprandial plasma glucose （mean 14.4 to 8.8 mmol/L,reduction-5.6 mmol/L）,all P ＜*** in mean body weight was ＋0.3 kg （P ＜0.001）.Conclusion In this subgroup analysis of the A1chieve study,biphasic insulin aspart 30 improved glycemic control with low risk of hypoglycemia.

关键词： biphasic insulin aspart 30 Chinese type 2 diabetes oral glucose-lowering drugs

Neurosurgical publications in China: an analysis of the web of science database

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Chinese Neurosurgical Journal 2016年第1期2卷 -页

作者： Weiming liu Deling li Ming Ni Wang Jia Weiqing Wan Jie Tang guijun Jia Department of Neurosurgery Beijing Tiantan Hospital Capital Medical University Tiantan Xili 6 Donqcheng District Beijing 100050 China

Background:Neurosurgery in China has made great *** aim of this study was to analyze neurosurgical publications by Chinese authors using the Web of Science database as a way to illustrate the current state of neurosurgery in ***:We searched the Web of Science core database for articles containing 'neurosurg*' with or without an author address in 'China' to obtain the set of neurosurgical publications in China and *** then extracted data from the search results to obtain information such as document type,countries/territories,organizations,publication year,title and research ***,we analyzed the search results of articles (document type) to generate a citation *** identified publications by Chinese neurosurgeons that were cited more than 100 ***:A total of 165,365 neurosurgical publications were *** them,10,770 were published by Chinese *** neurosurgical publications have increased year by year,accounting for 2 ％ of neurosurgical publications before 2010 and rising to 13 ％ from 2010 to the *** most frequent journals for Chinese neurosurgeons differ from the most frequent journals *** identified 34 Chinese organizations that published more than 100 *** also identified 19 studies written by Chinese neurosurgeons that were cited more than 100 *** research represents a large proportion of Chinese publications in this area,while clinical research remains a weak *** studies were overrepresented among Chinese ***:While China's publication output in the area of neurosurgery has made great progress,significant room for improvement *** next step is to strengthen Chinese neurosurgical clinical studies and improve the publishing environment for Chinese neurosurgeons.

关键词： Neurosurgery Publications China Web of science

Application of a quantitative ^1H NMR method for rapid extraction and determination of the content of paeonol in Cynanchum paniculatum

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Journal of Chinese Pharmaceutical Sciences 2020年第6期29卷 422-430页

作者： Xuejiao li Jianwei Dong Xiu Gao guijun li Junyou Shi Yanqing Zhang College of Chemistry and Environmental Science Qujing Normal UniversityQujing 655011China College of Biological Resources and Food Engineering Qujing Normal UniversityQujing 655011China

Cynanchum paniculatum(Bunge) Kitagawa is usually used as an herbal medicine for treating many diseases. Paeonol is the main active component, and its content is the key indicator for quality control of C. paniculatum. In the present study, we developed a rapid, accurate and precise method for quantitation of paeonol in C. paniculatum using 1 H NMR spectra. The deuterated solvent of methanol-d4 enabled satisfactory separation of the signals to be integrated in 1 H NMR spectrum. H-6(δ 7.78) of 1 H NMR spectrum of C. paniculatum was selected as the feature signal for quantitation, and trimesic acid(TMA) was selected as an internal standard. Validation of the quantitative method was performed in terms of linearity, specificity, repeatability and stability. This is the first time to report quantitative 1 H NMR(qHNMR) applied to determine the content of paeonol in C. paniculatum and showed a wider linearity range than the reported quantitation of paeonol in others. The simple extraction of paeonol from C. paniculatum was rapid and will prompt the application of the developed method. This work implied that qHNMR represented a feasible alternative to HPLC-based methods for quantitation of paeonol in C. paniculatum, and it was suitable for the quality control of C. paniculatum.

关键词： Cynanchum paniculatum Quantitative ^1H NMR Paeonol Quantitative determination