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Chemical Research in Chinese Universities 2019年第3期35卷 427-433页

作者： ZHOU Tong XU Guangyu SUN Luyao YU Zhenxiang wang guixia Department of Endocrinology and Metabolism the First Hospital of Jilin UniversityChangchun 130021P.R.China College of Pharmacy Beihua UniversityJilin 132013P.R.China Department of Infectious Diseases the First Hospital ofJilin UniversityChangchun 130021P.R.China Department cf Respiration the First Hospital of Jilin University y Changchun 130021P.R.China

Herein, we described the physicochemical properties of deproteinized extract of calf blood(DECB) and established a hypoxia model treated with or without DECB to detect the sugar, lactic acid, protein, and ATP contents of mice and then identified and analyzed the differentially expressed genes between two groups using mRNA expression chip. According to the results of the airtight hypoxia experiment, mice in the model+DECB group had a signifi? cantly prolonged time of hypoxia tolerance compared with the model group. The biochemical test indicated that DECB could significantly increase the level of sugar, ATP and proteins and reduce the amount of lactic acid in mice. It also revealed that Hmgcs2, Cptla, Angptl4, Cyp8b], and Ehhadh genes were involved in mice energy metabolism, and were closely associated witli metabolic signaling pathway. These results suggest that DECB might be a potential drug to treat metabolic diseases. Among the genes with differential expression under hypoxia, Angptl4, Cyp8bl, and Ehhadh were critical factors for sugar metabolism. Hmgcs2 provided energy directly, and Cptla regulated cellular inflammatory responses, promoting energy metabolism.

关键词： Deproteinized extract of calf blood Energy metabolism mRNA chip

On the Generation and Evolution of Internal Solitary Waves in the Andaman Sea

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Journal of Ocean University of China 2023年第2期22卷 335-348页

作者： YU Yujun XU Tao wang Jinhu wang Shuya LI Qun MENG Jing CHEN Xu LU Kexiao wang guixia Key Laboratory of Physical Oceanography Ocean University of China and Qingdao National Laboratory for Marine Science and TechnologyQingdao 266100China Polar Research Institute of China(PRIC)Shanghai 200000 China College of Mathematical Science Inner Mongolia Normal UniversityHohhot 010022China

Internal solitary waves(ISWs)are ubiquitous in the Andaman Sea,as revealed by synthetic aperture radar images;however,their generation mechanisms and corresponding influencing factors remain *** on a nonhydrostatic two-dimensional model,the generation of ISW packets along the transect of a channel lying between Batti Malv Island and Car Nicobar Island is ***,the influences of topographic characteristics,seasonal stratifications,and tidal forcings are analyzed through a series of sensitivity *** simulation results indicate that bidirectional rank-ordered ISW packets are generated by the nonlinear steepening of internal *** east-west ISW asymmetry is observed,which is attributed to distinct topographic *** surrounding sills can also generate internal wave beams,which modulate the intensity of ***,the topographic structure of the west flank of the ridge mainly contributes to the suppression of westward ISWs,which decreases the modulating effect of internal wave *** the spring tide,the generation of ISWs is *** the neap tide,ISWs are weak,and the east-west ISW asymmetry is less ***,seasonal stratification only has a minor effect on the generation and evolution of ISWs.

关键词： internal solitary wave numerical simulation Andaman Sea

Oxygen-containing-defect-induced synergistic nonlinear optical enhancement of graphene/CdS nanohybrids under single pulse laser irradiation

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Photonics Research 2018年第12期6卷 1158-1169页

作者： BAOHUA ZHU FANGFANG wang guixia wang YUZONG GU Institute of Micro/Nano Photonic Materials and Applications School of Physics and Electronics Henan University Key Laboratory of Infrared Imaging Materials and Detectors Shanghai Institute of Technical Physics Chinese Academy of Sciences

Oxygen-containing defects are very important for altering the nonlinear optical (NLO) properties of graphene. To investigate the correlation between oxygen-containing defects and the synergistic NLO response in graphenebased nanocomposites, we attached CdS nanocrystals on the surface of graphene (G) and prepared G/CdS nanohybrids (NHs) consisting of various oxygen-containing functional groups via a chemical method. The NLO absorption and refraction of G/CdS NHs under single pulse laser irradiation are enhanced by 10.8 times with the concentration decrease of surface oxygen-containing groups, which might be attributed to the local field effects and synergetic effects stemming from charge transfer between the two components. However, the optical nonlinearity is decreased with further concentration decrease, which might arise from sp^2 fragment interconnection and surface defects in the NHs. The NLO absorption transformation from two-photon absorption to saturable absorption with oxygen decrease is observed, and intensity-related NLO absorption and refraction in NHs are also discussed. Meanwhile, the G/CdS NHs exhibit superior NLO properties, implying potential applications of NH material in NLO devices.

关键词： Single pulse laser graphene CdS nanocomposites

Study on Soil Moisture Distributing Characteristics of Artificial Forest in Mountainous Region

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Chinese Forestry Science and Technology 2005年第4期4卷 68-76页

作者： XIA Jiangbao ZHANG Guangcan ZHANG Shuyong wang guixia HAN Wei Forestry College of Shandong Agricultural University. Tai＇an 271018 P. R. China Water Conservancy Bureau of Binzhou Binzhou 256612. P. R. China

Physical characteristics of soil structure and soil moisture of five kinds of artificia! forests were researched in Shengquan Temple Forestry Farm, in the southern mountainous area of Jinan City, in order to offer scientific management and nurture of forest vegetation in mountainous area of North China. Results indicated that：（1） In these artificial forests researched, some indexes expressing soil pedonydrological physical character, such as soil density, porosity, infiltration rate, were much better than those in bare land, and these indexes Showed this order： mixed forest 〉 pure forest, Kalopanax pictus 〉 Koelreuteria paniculata 〉 Pistacia chinensis. （2） In dry and rainy seasons, with the increasing of soil depth, soil water content decreased in most parts of forest, and their extent of change was less than those in bare land. （3） With the increasing of soil depth, soil saturated water content decreased in all kinds of forests. Water storing capacity of surface soil layer was the best in the mixed forest, while differences were little in other forest. Water storing and adjusting capacity was good in the mixed forest, while water offering capacity had little discrepancy in all forests. Conclusions show that judging from water conservation and water use efficiency, mixed forest is better than pure forest, and in pure forest K. pictus is better than K. paniculata. Therefore, it is proposed that in the future, mixed forest should be fostered and managed firstly, the species being made up of K. pictus and P. chinensis. In the pure forest, K. pictus is much better than others. Nowadays K. paniculata, and P, chinensis, especially their soil surface vegetation and litter, should be protected. As to poor forest, closing hill for afforestation should be adopted. Poor forest have better be reconstructed to be mixed forest in available conditions.

关键词： mountainous region artificial forest soil moisture soil infiltration soil porosity

求解一类不连续的Sturm-Liouville问题

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系统科学与数学 2009年第6期29卷 839-848页

作者：王桂霞孙炯内蒙古师范大学数学科学学院呼和浩特010022 内蒙古大学数学科学学院呼和浩特010021

研究一类边界条件中有谱参数的不连续的Sturm-Liouville问题.首先在Hilbert空间中定义了一个自共轭的线性算子A,使得该类Sturm-Liouville问题的特征值与算子A的特征值相一致.进一步证明了算子A是自共轭的,且这类Sturm-Liouville问题特... 详细信息

研究一类边界条件中有谱参数的不连续的Sturm-Liouville问题.首先在Hilbert空间中定义了一个自共轭的线性算子A,使得该类Sturm-Liouville问题的特征值与算子A的特征值相一致.进一步证明了算子A是自共轭的,且这类Sturm-Liouville问题特征值是解析单的.最后展示了一个具体问题的特征值以及特征函数的逼近解.

关键词：不连续的Sturm-Liouville问题谱参数依赖特征值解析单逼近解.

带转移条件的Strum-Liouville问题特征函数的振动性

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应用数学学报 2010年第3期33卷 395-411页

作者：王桂霞孙炯内蒙古师范大学数学科学学院呼和浩特010022 内蒙古大学数学科学学院呼和浩特010021

研究了一类带转移条件的Sturm-Liouville问题在区间(a,c)∪(c,b)上特征函数的振动性,构建了一个与该问题相关的新的Hilbert空间,证明了具有分离边界条件的这类问题的第n个特征值λ_n(n=1,2,…)所对应的特征函数在区间(a,c)∪(c,b)上有n-... 详细信息

研究了一类带转移条件的Sturm-Liouville问题在区间(a,c)∪(c,b)上特征函数的振动性,构建了一个与该问题相关的新的Hilbert空间,证明了具有分离边界条件的这类问题的第n个特征值λ_n(n=1,2,…)所对应的特征函数在区间(a,c)∪(c,b)上有n-1个或n个零点,除此之外,还有一个特征值λ_0所对应的特征函数在区间(a,c)∪(c,b)上没有零点.

关键词：转移条件特征值特征函数振动性

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风险导向的保险保障基金费率模式研究

保险研究 2019年第6期 51-65页

作者：汪桂霞粟芳上海财经大学金融学院上海财经大学金融学院保险系

保险保障基金的费率模式是构建保险保障基金制度的核心问题之一,模式的不同选择对保险公司的经营管理有着不同的导向作用。中国现有的单一费率模式未考虑风险,具有明显不足。在分析了其他各国和地区所采用的与风险相关联的保险保障基金... 详细信息

保险保障基金的费率模式是构建保险保障基金制度的核心问题之一,模式的不同选择对保险公司的经营管理有着不同的导向作用。中国现有的单一费率模式未考虑风险,具有明显不足。在分析了其他各国和地区所采用的与风险相关联的保险保障基金费率模式后,本文提出应基于我国“偿二代”监管体系构建出动态转移式费率模式在设计出与风险分级挂钩的动态转移式费率模式的规则之后,基于实际数据并遵循政策的延续性原则测算了初始费率,设计了动态转移式费率模式的费率转移规则并进行了测算。研究表明,动态转移式费率模式基本保持了原有保险保障基金的规模,且能给保险公司注重偿付能力风险管理和注重保险产品保障能力提供有力的正向指引。

关键词：保险保障基金风险分级动态转移式费率模式

一类不连续Strum-Liouville问题特征函数的振动性

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应用数学学报 2008年第3期31卷 500-513页

作者：王桂霞孙炯内蒙古大学数学科学学院

研究了一类不连续的Sturm-Liouville问题在开区间(a,c)∪(c,b)上特征函数的振动性,构建了一个与其相关的新的Hilbert空间,证明了具有分离边界条件的这类问题的第n个特征值λ_n(n=1,2,…)所对应的特征函数在区间(a,c)∪(c,b)上恰有n-1个... 详细信息

研究了一类不连续的Sturm-Liouville问题在开区间(a,c)∪(c,b)上特征函数的振动性,构建了一个与其相关的新的Hilbert空间,证明了具有分离边界条件的这类问题的第n个特征值λ_n(n=1,2,…)所对应的特征函数在区间(a,c)∪(c,b)上恰有n-1个零点.

关键词：转移条件特征值特征函数振动性

社会资本、技术认知对黑土区农户保护性耕作技术采纳行为的影响

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中国生态农业学报（中英文） 2022年第10期30卷 1675-1686页

作者：李文欢王桂霞太原学院太原030032 吉林农业大学经济管理学院长春130118

黑土地是极其珍贵的自然资源,在保证粮食安全、促进农业绿色发展和乡村振兴方面具有重要作用。但在过度利用的情况下,黑土地质量正在不断退化,如何提高农户保护性耕作技术的采纳率,促使黑土地由“瘦”变“肥”是当前亟须解决的问题。本... 详细信息

黑土地是极其珍贵的自然资源,在保证粮食安全、促进农业绿色发展和乡村振兴方面具有重要作用。但在过度利用的情况下,黑土地质量正在不断退化,如何提高农户保护性耕作技术的采纳率,促使黑土地由“瘦”变“肥”是当前亟须解决的问题。本文基于嵌入性社会结构理论,以典型黑土区625户种植户的调研数据为基础,运用结构方程模型(SEM)探析了社会资本、技术认知对农户保护性耕作技术采纳行为影响的传导路径及其群组差异。研究表明:1)社会资本对农户保护性耕作技术采纳行为具有正向促进作用。2)技术认知对农户保护性耕作技术采纳行为具有正向促进作用,同时技术认知在社会资本对农户保护性耕作技术采纳行为的影响中起中介作用。但技术有用性认知的间接影响大于技术易用性的影响。3)多群组SEM结果显示:种植规模、年龄在社会资本和技术认知对农户保护性耕作技术采纳行为的影响存在差异。其中,大规模种植户技术采纳行为更容易受社会网络的影响,而中小规模种植户受社会信任影响较大。中青年种植户的技术采纳行为更容易受到社会网络的影响,而老年种植户更容易受到技术易用性的影响。鉴于此,东北黑土区保护性耕作技术的推广除依靠政府外,还应在考虑农民异质性的前提下充分发挥社会资本的作用。

关键词：社会资本技术认知保护性耕作黑土地保护粮食安全

社会规范对农民环境治理行为的影响研究——以畜禽粪污资源化利用为例

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干旱区资源与环境 2019年第7期33卷 10-15页

作者：李文欢王桂霞吉林农业大学经济管理学院长春130118 吉林农业大学粮食研究中心长春130118

农村环境污染具有分散性和隐蔽性的特点,政府现行的环境监管效果往往不尽如人意。构建农民之间的约束机制使外部监管内部化,才是解决农村环境问题的长远之计。社会规范作为一种非正式机制,在引导农民自觉治理环境方面具有非常重要的作... 详细信息

农村环境污染具有分散性和隐蔽性的特点,政府现行的环境监管效果往往不尽如人意。构建农民之间的约束机制使外部监管内部化,才是解决农村环境问题的长远之计。社会规范作为一种非正式机制,在引导农民自觉治理环境方面具有非常重要的作用。文中从微观农户视角出发,以畜禽粪污资源化利用为例,通过构建结构方程探讨社会规范对农户环境治理行为的作用机理。研究结果表明:1)社会规范只有被激活才会最终影响农户的环境治理行为;2)社会规范通过个人规范、感知行为能力和信任间接正向影响农户环境治理行为,其间接路径系数分别是0.403、0.492、0.151。

关键词：社会规范环境治理畜禽粪污资源化利用结构方程