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城市少数民族流动人口身份认同困境及治理

贵州民族研究 2017年第4期38卷 44-50页

作者：左岫仙青觉中央民族大学北京100081 黑龙江省民族研究所黑龙江哈尔滨150006

我国城市流动人口已经进入了各民族跨区域大流动活跃期,少数民族流动人口在城市工作、居住、生活中,由于生存境遇相对弱势性、先赋身份功能的特殊性、城市融入机制的排斥性、城市文化适应的艰难性等原因,使他们的身份认同呈现先赋身份... 详细信息

我国城市流动人口已经进入了各民族跨区域大流动活跃期,少数民族流动人口在城市工作、居住、生活中,由于生存境遇相对弱势性、先赋身份功能的特殊性、城市融入机制的排斥性、城市文化适应的艰难性等原因,使他们的身份认同呈现先赋身份认同的归属性较强、城市居民身份的归属性较弱、身份认同的利益性凸显等特征。这种身份认同困境,已经对民族关系、社会稳定、国家认同造成了实质性伤害。为此,必须重视少数民族流动人口身份认同的困境问题,通过科学认知先赋身份认同的嬗变规律,坚持"心新结合"的治理理念,构建全方位的城市身份认同形成机制等思路,合力有效推进治理。

关键词：城市少数民族流动人口身份认同困境社会治理

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新媒体时代民族团结教育创新研究

民族教育研究 2016年第6期27卷 5-11页

作者：青觉左岫仙中央民族大学北京100081 黑龙江省民族研究所哈尔滨150081

民族团结教育是我国维护民族团结的重要手段。依托于互联网技术的新媒体为推动民族团结教育创新提供了广阔平台,给民族团结教育带来了手段多样化、主体大众化、范围扩大化的机遇。与此同时,新媒体时代,我国民族团结教育面临着诸多挑战,... 详细信息

民族团结教育是我国维护民族团结的重要手段。依托于互联网技术的新媒体为推动民族团结教育创新提供了广阔平台,给民族团结教育带来了手段多样化、主体大众化、范围扩大化的机遇。与此同时,新媒体时代,我国民族团结教育面临着诸多挑战,表现为网络民族主义、网络恐怖主义的兴起,新媒体成为破坏民族团结政治动员的重要工具。我国利用新媒体开展民族团结教育基础薄弱、技术手段相对落后。为了更好地利用新媒体深入推进民族团结教育活动,必须将新媒体建设提升到维系国家最高利益的认识高度,通过打造优质资源、夯实基础等手段合力推进民族团结教育创新。

关键词：新媒体民族团结教育创新思路

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基于能量优先的WSN最优梯度路由协议

广西师范大学学报（自然科学版） 2013年第3期31卷 157-163页

作者：窦贤振徐晨左杨南通大学电子信息学院江苏南通226019

本文针对无线传感器网络最优梯度路由算法的局限性,提出一种能量优先的路由算法。改进的算法充分考虑了数据包多路径冗余传输和能量消耗不均衡等问题,使得网络中的信息包沿着能耗最优的路径向汇聚节点发送。仿真结果显示,与最优梯度路... 详细信息

本文针对无线传感器网络最优梯度路由算法的局限性,提出一种能量优先的路由算法。改进的算法充分考虑了数据包多路径冗余传输和能量消耗不均衡等问题,使得网络中的信息包沿着能耗最优的路径向汇聚节点发送。仿真结果显示,与最优梯度路由算法相比,改进的能量优先的路由算法节省了网络建立时间和通信开销,节约了网络节点平均能量,减缓了节点失效时间,同时延长了整个网络的生命周期。

关键词：无线传感器网络路由算法最优梯度值多路径能量优先

An Efficient Pulsed CH3OH Terahertz Laser Pumped by a TEA CO2 Laser

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Chinese Physics Letters 2010年第2期27卷 117-119页

作者：纠智先左都罗苗亮祁春超程祖海 Wuhan National Laboratory for Optoelectronics College of Optoelectronic Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074

An efficient pulsed CH3OH terahertz （THz） laser pumped by a TEA CO2 laser is investigated experimentally. To improve photon conversion efficiency and THz laser energy, two cavity configurations of the TEA CO2 laser, which is external and semi-external, are evaluated. The pump intensities are about 4.7 MW/cm2 and 1.2 MW/cm2, respectively. Higher pump intensity and more stable single lines are obtained in the external cavity. For the 3.8 J pump energy of the 9P（16） transition in the external cavity, the maximum terahertz output energy with 570.5 μm wavelength at 160 Pa is 431 μJ. With a 6 J energy pulse in terms of a semi-external cavity, a 353 μJ terahertz emission （570.5 μm） is produced. The corresponding photon conversion efficiencies are 1.36% and 0.705%, increasing by a factor of about 2.

关键词： Optics quantum optics and lasers

First light for the sodium laser guide star adaptive optics system on the Lijiang 1.8 m telescope

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Research in Astronomy and Astrophysics 2016年第12期16卷 41-45页

作者： Kai Wei Min Li Shan-Qiu Chen Yong Bo Feng Chen Jun-Wei zuo Qi Bian Ji Yao Lu-Chun Zhou Lin Wei Dong-Hong Chen yang Gao KaiJin Xiao-Lin Dai Han-Chu Fu Chang Xu Zhi-Chao Wang xiang-Hui Xue Xue-Wu Chen xian-Mei Qian Yu Zhou Hao xian Qin-Jun Peng Chang-Hui Rao Zu-Yan Xu Yu-Dong Zhang Key Laboratory on Adaptive Optics Chinese Academy of SciencesChengdu 610209China Institute of Optics and Electronics Chinese Academy of SciencesChengdu 610209China Research Center for Laser Physics and Technique Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China University of-Science and Technology of China Hefei 230036China Wuhan Institute of Physics and Mathematics Chinese Academy of SciencesWuhan 430071China Anhui Institute of Optics and Fine Mechanics Chinese Academy of SciencesHefei 230031China Yunnan Observatories Chinese Academy of SciencesKunming 650200China University of Chinese Academy of Sciences Beijing 100049China

A first generation sodium Laser Guide Star Adaptive Optics System （LGS-AOS） was developed and integrated into the Lijiang 1.8 m telescope in 2013. The LGS-AOS has three sub-systems：（1） a 20W long pulsed sodium laser, （2） a 300-millimeter-diameter laser launch telescope, and （3） a 37-element com- pact adaptive optics system. On 2014 January 25, we obtained high resolution images of an my 8.18 star, HIP 43963, during the first light of the LGS-AOS. In this paper, the sodium laser, the laser launch telescope, the compact adaptive optics system and the first light results will be presented.

关键词： instrumentation: adaptive optics -- turbulence -- atmospheric effects

Comparison on Seed Production of Various Orchardgrass

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Animal Husbandry and Feed Science 2011年第4期3卷 34-38页

作者： WANG Guo-ze zuo Fu-yuan ZENG Bing TANG xian-fang Department of Animal Science Rongchang Campus of Southwest University Chongqing 402460 China

[ Objective] To find orchardgrass cultivars which have high seed production and can be planted in western Chongqing region. [ Method] Seed production and phenophase were compared between several common orehardgrass cultivam （domestic or foreign） in western Chongqing region. A high-yield high-quality orchardgrass line suitable for seed production in western Chongqing region was found, [ Result] The orohardgra^s in western Chongqing region had excellent seed production performance. Among these cultivars, orGhardgrass 01076 had the highest seed produc. tion, up to 512 kg/hm^2. Its germinability, germination rate and germination index were also highest, 49%, 84% and 11, respectively. [Condusion] The orchardgrass 01076 is worth planting in large scale in westem Chongqing region for seed production.

关键词： Orchardgrass Cultivars Seeds Production performance

The mode of yearly biological cycle of malignant growth of hepatocellular carcinoma on computed tomography

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Hepatobiliary & Pancreatic Diseases International 2003年第1期2卷 77-80页

作者： Wan-xian Yu Min-Jing zuo Mao-Xin Sheng Hui-Min Huang the CT Department, Second Affiliated Hospital, Jiangxi Medical College, Nanchang 330006, China The CT Department Second Affiliated Hospital Jiangxi Medical College Nanchang 330006 China. Yuwx0917@***

OBJECTIVE: To detect the mode of yearly biological cycle of malignant biological behavior of hepatocellular carcinoma (HCC). METHODS: Twenty-one kinds of CT signs reflecting various degrees of malignant biological behavior were determined. A total of 360 patients were collected by random sampling of 30 patients each month. CT signs of each patient were fitted in corresponding group of yearly cyclic data respectively by cosine curves and analysed in terms of sequence characteristics (cosinor). RESULTS: With a 95% confidence, 10 CT signs showed biological rhythm (P<0.05). The acrophase of CT features for highly-invasive growth concentrated between -60° and -120° from March to April. For low-invasive growth, however, the CT features were relatively low and concentrated between -180° and -270° from July to September. No acrophase was shown between -120° and -180° from May to June, and between -270° and -330° from October to November. CONCLUSION: Between CT signs of the highly-invasive and those of low-invasive growth of HCC, a sequential difference in biological cycles can be observed.

关键词： liver neoplasms computed tomography chronobiology

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基于分形理论的翼面复杂冰形表面粗糙度分析

Transactions of Nanjing University of Aeronautics and Astronautics 2023年第2期40卷 169-178页

作者：农历冼军胡站伟左承林易贤中山大学系统科学与工程学院广州510000 中山大学数学学院广州510000 中国空气动力研究与发展中心结冰与防除冰重点实验室绵阳621000

模型表面的结冰外形是结冰风洞试验关注的核心信息,现有研究一般采用冰角高度、冰角角度、驻点冰厚等几何参数对二维冰形进行表征,忽略了冰形表面粗糙程度这一重要特征。针对此问题,提出将分形理论应用于结冰冰形的粗糙度表征,建立了基... 详细信息

模型表面的结冰外形是结冰风洞试验关注的核心信息,现有研究一般采用冰角高度、冰角角度、驻点冰厚等几何参数对二维冰形进行表征,忽略了冰形表面粗糙程度这一重要特征。针对此问题,提出将分形理论应用于结冰冰形的粗糙度表征,建立了基于分形理论的结冰表面粗糙度表征方法。首先在大型结冰风洞开展翼型结冰试验,采用激光线扫描在线测量系统对结冰生长过程中不同时刻翼面结冰的表面轮廓进行测量,获得翼面结冰的三维数值外形;然后结合分形理论对冰形进行分析,提取翼面不同位置冰的截面轮廓曲线,计算截面曲线的分形维数和粗糙度表征参数,以此归纳出分形维数的线性回归公式,并从截面曲线中提取数据点进行分形插值模拟实测冰形。研究结果表明,翼面结冰冰形粗糙表面具有分形特征;分形维数与粗糙度表征参数呈正相关,可作为冰形表面粗糙度的评定参数;分形插值模拟冰形曲线,逼近程度优异;冰形粗糙度的分形表达法为科学量化三维冰形特征提供了新思路。

关键词：粗糙度分形理论计盒维数多元回归分析特征表征

SENP1 regulates IFN-γ-STAT1 signaling throug STAT3-SOCS3 negative feedback loop

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Journal of Molecular Cell Biology 2017年第2期9卷 144-153页

作者： Tingting Yu Yong zuo Rong Cai xian Huang Shuai Wu Chenxi Zhang Y. Eugene Chin Dongdong Li Zhenning Zhang Nansong Xia Qi Wang Hao Shen Xuebiao Yao Zhong-Yin Zhang Song Xue Lei Shen Jinke Cheng Department of Biochemistry and Molecular Cell Biology Shanghai Key Laboratory for Tumor Microenvironment and Inflammation Shanghai Jiao Tong University School of Medicine Shanghai 200025 China Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of Education Shanghai Jiao Tong University School of Medicine Shanghai 200025 China Department of Developmental Genetics School of Basic Medical Sciences Nanjing Medical University Nanjing 211166 China Shanghai Institute of Immunology Shanghai Jiao Tong University School of Medicine Shanghai 200025 China Institute of Health Sciences Chinese Academy of Sciences Shanghai Jiao Tong University School of Medicine Shanghai 200025 China Department of Microbiology University of Pennsylvania Perelman School of Medicine Philadelphia PA 19104 USA Anhui Key Laboratory of Cellular Dynamics Hefei National Laboratory for Physical Sciences at Nanoscale University of Science and Technology of ChinaHefei 230026 China Department of Biochemistry and Molecular Biology Indiana University School of Medicine Indianapolis IN 46202 USA Shanghai Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine Shanghai 200127 China

Interferon-γ （IFN-γ） triggers macrophage for inflammation response by activating the intracellular JAK-STAT1 signaling. Suppressor of cytokine signaling 1 （SOCS1） and protein tyrosine phosphatases can negatively modulate IFN-γ signaling. Here, we identify a novel negative feedback loop mediated by STAT3-SOCS3, which is tightly controlled by SENP1 via de-SUMOylation of protein tyrosine phosphatase 1B （PTPIB）, in IFN-y signaling. SENP1-deficient macrophages show defects in IFN-γ signaling and M1 macrophage activation. PTP1B in SENP1-deficient macrophages is highly SUMOylated, which reduces PTP1B-induced de-phosphorylation of STAT3. Activated STAT3 then suppresses STAT1 activation via SOCS3 induction in SENP1-deficient macro- phages. Accordingly, SENP1-deficient macrophages show reduced ability to resist Listerio rnonocytogenes infection. These results reveal a crucial role of SENP1-controlled STAT1 and STAT3 balance in rnacrophage polarization.

关键词： IFN-γ macrophage SENP1 SUMOylation