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非正规金融利率决定机制——一个信息基本对称的NASH议价解析

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上海经济研究 2006年第5期18卷 37-45页

作者：程昆华南农业大学经济管理学院 510642

本文研究非正规金融信贷利率决定机制。基于非正规金融市场具有信贷信息基本对称的特征,本文构造了一个信息基本对称的纳什议价模型,把非正规金融利率的主要决定因素(项目自然风险、项目收益率、贷款期限、贷款规模、贷款紧急程度、借... 详细信息

本文研究非正规金融信贷利率决定机制。基于非正规金融市场具有信贷信息基本对称的特征,本文构造了一个信息基本对称的纳什议价模型,把非正规金融利率的主要决定因素(项目自然风险、项目收益率、贷款期限、贷款规模、贷款紧急程度、借款者的经营能力、信贷市场的竞争程度以及制度风险)作为变量纳入模型中,分析了这些因素如何影响非正规金融利率水平。

关键词：非正规金融利率决定机制纳什议价解

Regulating Effect of Allicin(Diallyldisulfid-S-Oxide) on Respiration Function of Mitochondria from Beef Heart

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Chemical Research in Chinese Universities 2010年第5期26卷 785-791页

作者： SU Yan-bin TONG Li-fang LIU Pai LU Ming cheng Ying-kun ZHANG Feng-rong SU Yan-wen DONG Jia-ning LI Zheng-qiang Key Laboratory for Molecular Enzymology ＆ Engineering Ministry of Education Jilin University Changchun 130021 P R. China School of Chemical and Pharmaceutical Engineering Jilin Institute of Chemical Technology Jilin 132022 P R. China Department of Infective Disease Therapeutics of China-Japan Union Hospital Jilin University Changchun 130033 P. R. China Jilin Provincial Institute for Drug and Food Control Changchun 130033 P. R. China

To probe into regulating functions of allicin, diallyldisulfid-S-oxide, on electron transport in the inner membrane of mitochondria isolated from beef heart, under the anaerobic, hypoxia, and oxygenating conditions in the presence of rotenone（complex I inhibitor） at 37 ℃, we optimized the isolation method for isolating mitochondria from beef heart and used the technique for measuring dissolved oxygen content at the right moment so as to investigate the effects of allicin on the respiratory control of mitochondria in state 4 and state 3, P/O ratio, and respiratory control ratio（RCR）. The results show that the optimized isolated requirements were that all the operations were always kept at 0-4 ℃, the ratio between sample and isolation medium was 1：4, the filter was a four-layer gauze, two centrifugations in different sections. First section： 2500g, 10 min; second section 7000g, 20 min. The results indicate that the capacity of dissolved oxygen in state 3 was increased and that of dissolved oxygen in state 4 was almost stabilized in mitochondria from beef heart.

关键词： Allicin Respiration Mitochondrial Beef heart

基于边缘保持滤波的高光谱影像光谱-空间联合分类

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自动化学报 2018年第2期44卷 280-288页

作者：张成坤韩敏大连理工大学电子信息与电气工程学部大连116023

针对高光谱遥感影像分类过程中,高维数据引起的"维数灾难"以及空间邻域一致性信息没有得到充分利用的问题,提出一种基于边缘保持滤波(Edge-preserving filtering,EPF)的高光谱影像光谱–空间联合分类算法.该算法首先进行波段子集划分和... 详细信息

针对高光谱遥感影像分类过程中,高维数据引起的"维数灾难"以及空间邻域一致性信息没有得到充分利用的问题,提出一种基于边缘保持滤波(Edge-preserving filtering,EPF)的高光谱影像光谱–空间联合分类算法.该算法首先进行波段子集划分和主成分提取,构造新的低维特征集,在保存影像结构信息的前提下降低数据维度;其次利用支持向量机(Support vector machine,SVM)获得低维特征集的初始分类概率图;然后利用原始影像主成分对初始分类概率图进行边缘保持滤波,融合光谱信息和空间信息;最后根据滤波后分类概率图对应像素点值的大小确定每个像素的类别.在Indian Pines和Pavia University两组高光谱数据上进行仿真实验,相同实验条件下,本文算法都获得最高分类精度和最少的时间消耗.仿真结果表明本文算法在高光谱遥感影像分类任务中具有明显的优势.

关键词：高光谱边缘保持滤波支持向量机光谱–空间联合分类

基于I-BGLAM纹理和光谱融合的高光谱显微成像木材树种分类

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光谱学与光谱分析 2021年第2期41卷 599-605页

作者：赵鹏韩金城王承琨东北林业大学信息与计算机工程学院黑龙江省哈尔滨市150040 广西科技大学计算机科学与通信工程学院广西柳州545006

为了提高木材树种分类的正确率,提出了一种基于I-BGLAM纹理特征和光谱特征融合的高光谱图像的木材树种分类方法。实验数据是利用SOC710VP高光谱成像仪获取的可见光/近红外(372.53~1038.57 nm)范围内的高光谱图像。首先,利用基于OIF的特... 详细信息

为了提高木材树种分类的正确率,提出了一种基于I-BGLAM纹理特征和光谱特征融合的高光谱图像的木材树种分类方法。实验数据是利用SOC710VP高光谱成像仪获取的可见光/近红外(372.53~1038.57 nm)范围内的高光谱图像。首先,利用基于OIF的特征波段选择方法降低高光谱图像的维数,选择出含有信息量大的波段。其次,对选择出的波段图像使用NSCT及NSCT逆变换得到融合图像,对得到的融合图像使用I-BGLAM提取其纹理特征。与此同时,对高光谱图像的全波段求取平均光谱并进行S-G(Savitzky-Golay)平滑得到光谱特征。最后,将得到的纹理特征和光谱特征融合后送进极限学习机(ELM)中进行分类。此外,还和基于灰度共生矩阵(GLCM)的木材识别的传统方法以及近几年木材树种识别领域内被提出的主流方法进行了比较。该研究主要创新点有两个:一是将强纹理提取器I-BGLAM用于高光谱图像中提取其纹理特征;二是提出一种新的特征融合的模型用于高光谱图像的分类。针对8个树种的实验结果表明,单独使用I-BGLAM提取的纹理特征来进行分类的正确率最高可到达88.54%,而使用GLCM提取纹理特征的传统方法正确率最高只有76.04%,该结果可以得出本文使用I-BGLAM在纹理特征提取方面要优于GLCM,这为后面建立的融合模型打下很好的基础,单独使用平均光谱特征来分类的正确率最高可以达到92.71%,使用所提出的特征融合方法所得到的分类正确率最高可达到100%,这说明使用所提出的融合模型来分类要比以前单独使用某一种特征的分类模型要好。此外,使用所提出的方法得到的分类正确率要高于本领域内其他两种主流的识别方法。因此,所提出的基于I-BGLAM纹理特征和光谱特征融合的方法能够提高木材树种分类的正确率,该方法在木材树种分类方面有着一定的利用价值。

关键词：高光谱图像 I-BGLAM 纹理特征光谱特征特征融合木材树种分类

Assessment of the right and left ventricular function in patients with cor pulmonale using high-definition CT

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Chinese Medical Journal 2013年第19期126卷 3639-3644页

作者： GAO Yan QIN Jian DU Xiang-ying YANG Jing LI kun-cheng Department of Radiology Xuanwu Hospital of Capital MedicalUniversity Beijing 100053 China

Background Cor pulmonale is often associated with changes of structure and function of the right ventricle （RV） and thus further affects functional changes of the left *** study aimed to assess the left ventricular （LV） and RV function in patients with cor pulmonale using high-definition CT （HDCT）.Methods We prospectively studied 18 cor pulmonale patients determined by the pulmonary function test,clinical examination,chest radiograph,electrocardiogram,and *** subject group was compared to a control group consisting of 18 *** RV and LV functions and RV myocardial mass （MM） were obtained by HDCT in the two *** results were compared between the two groups using the independent sample t *** examination for cardiac function analysis was performed on the same *** The RV end-diastolic volume （EDV）,RV end-systolic volume （ESV） and RV myocardial mass were significantly larger in the 18 cor pulmonale patients than in the control group （P〈0.05）.The right ventricular ejection fraction （RVEF） was significantly lower in the 18 cor pulmonale patients than in controls （P〈0.01）.The left ventricular EDV （LVEDV） and LVEF were significantly lower in cor pulmonale patients than in controls （P〈0.01）.There were strong correlations between MDCT and echocardiography,rRVEF=0.839 and rLVEF=0.916,*** HDCT can accurately quantify RV and LV *** right ventricular function is impaired in patients with cor pulmonale,while at the same time the left ventricular function is also impaired.

关键词： cor pulmonale ventricular function high-definition CT myocardial mass

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新时代中国基层社会矛盾化解机制探究

河南社会科学 2018年第6期26卷 24-28页

作者：程昆商丘师范学院马克思主义学院河南商丘476000

随着中国特色社会主义进入新时代,我国社会也处在急剧变化的转型期,改革的深化和社会的发展使中国社会出现了利益格局"失衡"、社会治理"失范"、社会心理"失约"等问题,大量的基层社会矛盾不断涌现,构建高效、多元的基层社会矛盾化解机制... 详细信息

随着中国特色社会主义进入新时代,我国社会也处在急剧变化的转型期,改革的深化和社会的发展使中国社会出现了利益格局"失衡"、社会治理"失范"、社会心理"失约"等问题,大量的基层社会矛盾不断涌现,构建高效、多元的基层社会矛盾化解机制,对于促进社会和谐与稳定具有重要的现实意义。当代中国基层社会矛盾的有效化解,一要依靠基层民主,二要完善法律机制,三要健全信访机制,四要创新调解制度。

关键词：新时代转型时期基层社会矛盾化解机制

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海洋条件下反应堆热工水力特性研究进展

哈尔滨工程大学学报 2019年第4期40卷 655-662页

作者：程坤谭思超哈尔滨工程大学核安全与仿真技术国防重点学科实验室黑龙江哈尔滨150001

浮动核电站受海面风浪影响会产生多种运动形式,造成堆芯热工水力特性改变,威胁反应堆运行安全。针对我国浮动核电站的研发设计需求,对海洋条件下反应堆热工水力特性的国内外研究进展进行综述,重点关注了海洋条件下流动换热、汽泡行为、... 详细信息

浮动核电站受海面风浪影响会产生多种运动形式,造成堆芯热工水力特性改变,威胁反应堆运行安全。针对我国浮动核电站的研发设计需求,对海洋条件下反应堆热工水力特性的国内外研究进展进行综述,重点关注了海洋条件下流动换热、汽泡行为、流动不稳定性与临界热流密度等方面的研究进展,并提出了未来研究中需重点关注的内容。

关键词：流动波动汽泡行为临界热流密度自然循环海洋条件热工水力浮动反应堆船用核动力

Effects of sphincter of Oddi motility on the formation of cholesterol gallstones

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World Journal of Gastroenterology 2016年第24期22卷 5540-5547页

作者： Zhong-Hou Rong Hong-Yuan Chen Xin-Xing Wang Zhi-Yi Wang Guo-Zhe Xian Bang-Zhen Ma cheng-kun Qin Zhen-Hai Zhang Department of Hepatobiliary Surgery Provincial Hospital Affiliated to Shangdong University

AIM: To investigate the mechanisms and effects of sphincter of Oddi(SO) motility on cholesterol gallbladder stone formation in guinea ***: Thirty-four adult male Hartley guinea pigs were divided randomly into two groups, the control group(n = 10) and the cholesterol gallstone group(n = 24), which was sequentially divided into four subgroups with six guinea pigs each according to time of sacrifice. The guinea pigs in the cholesterol gallstone group were fed a cholesterol lithogenic diet and sacrificed after 3, 6, 9, and 12 wk. SO manometry and recording of myoelectric activity were obtained by a multifunctional physiograph at each stage. Cholecystokinin-A receptor(CCKAR) expression levels in SO smooth muscle were detected by quantitative real-time PCR(q RT-PCR) and serum vasoactive intestinal peptide(VIP), gastrin, and cholecystokinin octapeptide(CCK-8) were detected by enzyme-linked immunosorbent assay at each stage in the process of cholesterol gallstone ***: The gallstone formation rate was 0%, 0%, 16.7%, and 83.3% in the 3, 6, 9, and 12 wk groups, respectively. The frequency of myoelectric activity in the 9 wk group, the amplitude of myoelectric activity in the 9 and 12 wk groups, and the amplitude and the frequency of SO in the 9 wk group were all significantly decreased compared to the control group. The SO basal pressure and common bile duct pressure increased markedly in the 12 wk group, and the CCKAR expression levels increased in the 6 and 12 wk groups compared to the control group. Serum VIP was elevated significantly in the 9 and 12 wk groups and gastrin decreased significantly in the 3 and 9 wk groups. There was no difference in serum CCK-8 between the ***: A cholesterol gallstone-causing diet can induce SO dysfunction. The increasing tension of the SO along with its decreasing activity may play an important role in cholesterol gallstone formation. Expression changes of CCKAR in SO smooth muscle and serum VIP and CCK-

关键词： Cholesterol gallstone Sphincter of Oddi Manometry Myoelectric activity Cholecystokinin-A receptor

A case of symptomatic epidural gas accumulation due to peptostreptococcus micros infection

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镜湖医学 2012年第1期12卷 57-58页

作者： cheng kun Leong Chan Seng Lam In Fong 澳門鏡湖醫院呼吸内科中国

Epidural gas accumulation caused by anaerobic organisms has been reported *** we describe a case of symptomatic epidural gas associated with anaerobic cellulitis due to Peptostreptococcus micros infection.

关键词： epidural infection symptomatic