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现代化进程中民族文化的嬗变与和谐民族文化的构建

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黑龙江民族丛刊 2007年第4期 14-17页

作者：金炳镐田烨中央民族大学中国民族理论与民族政策研究院中央民族大学中国民族理论与民族政策研究院北京100081

在现代化进程中,民族传统文化遭受到前所未有的巨大冲击,发生了三种类型的嬗变,这是一个动态调整的过程,其结果是使民族文化适应现代化的发展方向,发生嬗变后的民族文化不同于和谐民族文化。现代化进程中民族文化的嬗变,可以说是一个被... 详细信息

在现代化进程中,民族传统文化遭受到前所未有的巨大冲击,发生了三种类型的嬗变,这是一个动态调整的过程,其结果是使民族文化适应现代化的发展方向,发生嬗变后的民族文化不同于和谐民族文化。现代化进程中民族文化的嬗变,可以说是一个被动的适应过程;构建和谐民族文化,可以说是一个主动的追求过程,它以发生嬗变的民族文化为基础,积极倡导民族和谐的价值取向,为构建和谐民族以及和谐社会提供智力支持。

关键词：民族文化嬗变和谐民族文化和谐社会

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带压力面小翼的压气机转子叶顶间隙效应研究

工程热物理学报 2014年第9期35卷 1739-1743页

作者：韩少冰钟兢军杨凌魏曼大连海事大学轮机工程学院大连116026

以低速轴流压气机转子为研究对象,数值研究了设计转速不同叶顶间隙条件下有/无压力面小翼的压气机转子气动特性。结果表明:随着叶顶间隙尺寸增加,压气机转子气动性能降低。在三种叶顶间隙情况下压力面小翼均使得转子最大静压升系数和效... 详细信息

以低速轴流压气机转子为研究对象,数值研究了设计转速不同叶顶间隙条件下有/无压力面小翼的压气机转子气动特性。结果表明:随着叶顶间隙尺寸增加,压气机转子气动性能降低。在三种叶顶间隙情况下压力面小翼均使得转子最大静压升系数和效率有所降低,失速裕度分别改善4.32%、8.20%和4.80%。通过与常规转子叶尖区域流场结构的详细对比,对压力面小翼影响转子叶尖端区流动的机理做出解释。

关键词：压力面小翼轴流压气机转子间隙效应数值研究

Dry sliding friction and wear behaviors of Mg_2B_2O_5 whisker reinforced 6061Al matrix composites

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Transactions of Nonferrous Metals Society of China 2014年第1期24卷 49-57页

作者：金培鹏陈庚韩丽王金辉青海大学机械工程学院西宁810016

The friction and wear properties of Mg2B2O5 whisker reinforced 6061Al matrix composite fabricated via power ultrasonic-stir casting process were investigated using a ball-on-disk wear-testing machine against a GCr45 steel counterface under dry sliding conditions. The reinforcements include as-received Mg2B2O5 whiskers and Mg2B2O5 whiskers coated with CuO and ZnO. The volume fraction of the composites is 2%. The relationship between the wear rate and the coefficient of friction was discussed. The results indicate that the wear rate of the Mg2B2O5 whiskers coated with ZnO reinforced aluminum matrix composites is the lowest among the materials. As the applied load and sliding speed steadily increase the coefficients of friction and wear rates of the as-received matrix alloy and the fabricated composites decrease. As the applied load and sliding speed increase, the wear mechanisms of the composites shift from a mild to a severe regime.

关键词： metal-matrix composite sliding wear wear testing wear mechanism

高斯厄米特粒子PHD被动测角多目标跟踪算法

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系统工程与电子技术 2013年第3期35卷 457-462页

作者：杨金龙姬红兵刘进忙西安电子科技大学电子工程学院陕西西安710071 江南大学物联网工程学院江苏无锡214122 空军工程大学导弹学院陕西三原713800

针对传统粒子概率假设密度(probability hypothesis density,PHD)滤波跟踪被动多目标时,估计精度不高,且存在粒子退化,容易导致滤波器发散的问题,提出一种新的被动多目标跟踪算法———高斯厄米特粒子PHD滤波算法。该算法采用一族高斯... 详细信息

针对传统粒子概率假设密度(probability hypothesis density,PHD)滤波跟踪被动多目标时,估计精度不高,且存在粒子退化,容易导致滤波器发散的问题,提出一种新的被动多目标跟踪算法———高斯厄米特粒子PHD滤波算法。该算法采用一族高斯厄米特滤波产生的高斯分布拟合更优的重要性密度函数,充分考虑了当前时刻的最新量测,并将该方法融入高斯混合粒子PHD(Gaussian mixture particle PHD,GMP-PHD)滤波框架中,在解决观测非线性的同时,有效提高了被动多目标的跟踪精度。实验结果表明,该算法较传统的GMP-PHD滤波算法具有更高的状态估计精度,且有效降低了目标的失跟率。

关键词：随机有限集目标跟踪概率假设密度高斯厄米特滤波

基于CuO/ZnO异质结纳米花的薄膜型丙酮传感器研究

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分析化学 2019年第3期47卷 363-370页

作者：胡明江晋兵营河南城建学院能源与建筑环境工程学院郑州铁路职业技术学院机电工程学院

采用低温水热法制备了CuO/ZnO异质结纳米花,将此纳米材料均匀涂覆于刻有叉指铂金电极的铝板基底表面形成敏感薄膜,制备了一种薄膜型丙酮传感器。采用扫描电子显微镜（SEM）、高分辨透射电子显微镜（HR-TEM）和X-射线光电子能谱（XPS）仪... 详细信息

采用低温水热法制备了CuO/ZnO异质结纳米花,将此纳米材料均匀涂覆于刻有叉指铂金电极的铝板基底表面形成敏感薄膜,制备了一种薄膜型丙酮传感器。采用扫描电子显微镜（SEM）、高分辨透射电子显微镜（HR-TEM）和X-射线光电子能谱（XPS）仪,表征了CuO/ZnO的相组成和微观形貌,分析了CuO/ZnO纳米材料敏感机理和电化学特性,测试了丙酮传感器灵敏特性、温度特性、动态响应和选择稳定性。结果表明,丙酮浓度在10～300 mg/m;范围内,传感器灵敏度与丙酮浓度呈良好线性关系。当温度为200℃,丙酮浓度为100 mg/m;时,传感器响应为24.2,动态响应和恢复时间分别为1.8和10. 7 s。对NO、CO、甲醛、甲醇和1,3-丁二烯等气体无明显响应,在汽车上连续使用50天,响应稳定标准差为0.107。

关键词：氧化锌纳米花传感器丙酮异质结构

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VegaGIS可视化系统的设计和实现

计算机工程 2008年第23期34卷 237-238,246页

作者：郎兵方金云韩承德中国科学院计算技术研究所空间信息处理技术实验室北京100190 中国科学院研究生院北京100049

针对跨平台多层体系结构的GIS系统要求,设计一种GIS可视化系统架构。该构架实现了GIS可视化系统常规功能和跨操作系统平台,具有动态使用多种绘制引擎、动态组装绘制算法、带有自适应输出设备等特性,能适应需求变更和图形技术的发展。在V... 详细信息

针对跨平台多层体系结构的GIS系统要求,设计一种GIS可视化系统架构。该构架实现了GIS可视化系统常规功能和跨操作系统平台,具有动态使用多种绘制引擎、动态组装绘制算法、带有自适应输出设备等特性,能适应需求变更和图形技术的发展。在VegaGIS平台上得到实现,已被成功应用于多个领域。

关键词：可视化系统 VegaGIS平台地理信息系统

Hemoporfin photodynamic therapy for a case of unilateral nevoid telangiectasia

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Chinese Medical Journal 2021年第10期134卷 1245-1247页

作者： Jie Kang han-jin Xie Yan-Yan Lin Li-hang Lin Xue-Min Xiao Department of Dermatology Union HospitalFujian Medical UniversityFuzhouFujian 350001China Department of Dermatology People’s HospitalFujian University of Traditional Chinese MedicineFuzhouFujian 350003China

To the Editor:Unilateral nevoid telangiectasia(UNT)is an uncommon cutaneous vascular disorder characterized by superficial telangiectasia distributed in a unilateral,linear *** can be either congenital or *** pathogenesis of UNT is unclear and most scholars thought that hyperestrogenic states play an important role in ***-dye laser(PDL)therapy is a mainstream treatment ***,we present a case of PDL-resistant UNT successfully treated with hemoporfin-mediated photodynamic therapy(HMME-PDT).

关键词： superficial ectasia por

Induction of Effective Antitumor Immune Response by Combined Administration of hIL-18 and NDV HN

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Chemical Research in Chinese Universities 2011年第5期27卷 836-840页

作者： HUANG Hai-yan MENG Xiang-wei LI Xiao SUN Li-li KAN Shi-fu LIU Lei PIAO bing-guo YANG Guo-hua WANG Zhuo-yue WANG Yu-hang QI Yan-xin jin Ning-yi Department of Gastroenterology the First Hospital of Jilin University Changchun 130021 P. R. China Laboratory of Genetic Engineering of PLA Military Veterinary Institute Academy of Military Medical Sciences Changchun 130062 P. R. China Key Laboratory of Jilin Province for Zoonosis Prevention and Control Military Veterinary Institute Academy of Military Medical Sciences Changchun 130062 P. R. China Department of Head and Neck Surgery Tumor Hospital of Jilin Province Changchun 130012 P. R. China Digestive lnternal Medicine Xuzhou Center Hospital Xuzhou 221009 P. R. China

To analyze the antitumor potential and mechanism of action of simultaneous Newcastle disease virus （NDV） hemagglutinin-neuraminidase（HN） and human interleukin 18（hIL-18） gene transfer in C57BL/6 mice with H22 hepatoma,the mouse model with H22 hepatoma was established in C57BL/6 mice, and the antitumor effects of the combined application of NDV HN and hIL-18 were evaluated in vivo. The results show that the growth of established tumors in mice immunized with adenovirus（Ad）-HN in conjunction with Ad-hIL-18 was significantly inhibited compared with that in mice immunized with Ad-HN, Ad-hIL-18 alone, or the empty vector（Ad-mock）. Furthermore, the immunization of mice with Ad-HN in conjunction with Ad-hIL-18 elicited strong natural killer activity and H22 tumor-specific cytotoxic T lymphocyte（CTL） responses in vivo. In addition, T cells from the lymph nodes of mice immunized with Ad-hIL-18 or Ad-HN＋Ad-hIL-18 secreted high levels of the Th1 cytokine IL-2 and interferon-γ （IFN-γ）, indicating that the regression of tumor cells is related to a Th1-type dominant immune response. These results demonstrate that vaccination with NDV HN together with hIL-18 may be a novel and powerful strategy for cancer immunotherapy.

关键词： Newcastle disease virus Human interleukin 18(hlL-18) Hemagglutinin-neuraminidase(HN) Hepatoma Antitumor immunity

Picture perception in Chinese dyslexic children： an eye-movement study

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Chinese Medical Journal 2009年第3期122卷 267-271页

作者： LI Xiu-hong jinG jin ZOU Xiao-bing HUANG Xu jin Yu WANG Qing-xiong CHEN Xue-bin YANG Bin-rang YANG Si-yuan Faculty of Maternal and Child Health Preventive MedicineInstitute Department of Public Health Sun Yat-sen UniversityGuangzhou Guangdong 510080 China Children Development and Behavior Center Third AffiliatedHospital of Sun Yat-sen University Guangzhou Guangdong510630 China

Background Currently, whether or not there is visuospatial impairments in Chinese dyslexic children is still a matter of discussion. The relatively recent application of an eye-tracking paradigm may offer an opportunity to address this issue. In China, in comparison with reading studies, there have not been nearly as many eye movement studies dealing with nonreading tasks such as picture identification and whether Chinese children with dyslexia have a picture processing deficit is not clear. The purposes of the present study were to determine whether or not there is visuospatial impairments in Chinese dyslexic children. Moreover, we attempted to discuss whether or not the abnormal eye movement pattern that dyslexic subjects show during reading of text appropriate for their age is a consequence of their linguistic difficulties. Methods An eye-link II High-Speed Eye Tracker was used to track the series of eye-movement of 19 Chinese dyslexic children and 19 Chinese normal children. All of the subjects were presented with three pictures for this eye-tracking task and 6 relative eye-movement parameters, first fixation duration, average fixation duration, average saccade amplitude, mean saccade distance, fixation frequency and saccade frequency were recorded for analysis. Results Analyzing the relative parameter among three pictures, except for the fixation frequency and the saccade frequency, other eye-movement parameters were significantly different among the three pictures （P 〈0.05）. Among the three pictures, the first fixation duration was longer, and the average fixation duration, the average saccade amplitude and the mean saccade distance were shorter from picture 2 to picture 3. Comparing all eye-movement parameter between the two groups, the scores of average saccade amplitude （P=-0.017） and the mean saccade distance （P=0.02） were less in the dyslexia group than in the normal group （P 〈0.05）, other parameters were the same in the two different groups （P 〉0.05）. Co

关键词： children dyslexia eye movement picture