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Journal of Integrative Agriculture 2020年第3期19卷 785-792页

作者： huang xiao-long JIANG Ting WU Zhen-ping ZHANG Wan-na xiao Hai-jun Institute of Entomology Jiangxi Agricultural University

The suppression of overwintering population is essential in integrated pest management,but little is known about the biological mortality factors that reduce the overwintering density of Chilo ***,we examine the parasitism of overwintering larvae,and assume that key parasitoids strengthen the over-wintering population *** natural parasitism incidence and related dominant parasitoids in overwintering larvae were investigated in two successive winters,in 2015-2016 and *** rates were also assessed in larvae collected from 15 different counties in *** results showed that the parasitism incidence and dominant parasitoids in overwintering *** larvae were significantly different for different sampling dates and *** larvae of *** were mainly parasitized by Cotesia chilonis,and less often by Eriborus sinicus and Microgaster *** analysis indicated that the natural incidence of parasites in overwintering *** larvae was positively correlated with the over-wintering larval *** current work provides support for overwintering pest management strategies by showing the effectiveness of parasitoid communities as a bio-mortality factor for suppressing overwintering density.

关键词： agroecosystem biological control over-wintering ecology population density parasitoid community

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中子反应同质异能态截面比的系统学

高能物理与核物理 2001年第3期25卷 229-236页

作者：黄小龙中国原子能科学研究院北京102413

提出了中子反应同质异能态截面比的半经验公式 .该公式含有一系统学参数 ,适应于产物核质量数 44≤A≤ 197、同质异能态自旋 0≤Jm≤ 12和基态自旋 0 5≤Jg≤ 8的中子反应 .在入射中子能量En<2 0MeV能区 ,对该系统学参数进行了系统学研... 详细信息

提出了中子反应同质异能态截面比的半经验公式 .该公式含有一系统学参数 ,适应于产物核质量数 44≤A≤ 197、同质异能态自旋 0≤Jm≤ 12和基态自旋 0 5≤Jg≤ 8的中子反应 .在入射中子能量En<2 0MeV能区 ,对该系统学参数进行了系统学研究 .通过获得的半经验公式和系统学参数 ,可以很好地再现已有实验数据。

关键词：中子反应同质异能态截面比系统学激发态

中能中子与^(60)Ni反应的理论计算和分析

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原子能科学技术 2008年第1期42卷 33-37页

作者：黄小龙中国原子能科学研究院核物理研究所北京102413

在中子与60Ni反应的总截面、去弹性散射截面和弹性散射角分布的实验数据基础上,获得了入射中子能量0.456~150 MeV范围内的一组普适的中子与60Ni反应的光学模型势参数。利用光学模型、宽度涨落修正的Hauser-Feshbach理论、预平衡反应的... 详细信息

在中子与60Ni反应的总截面、去弹性散射截面和弹性散射角分布的实验数据基础上,获得了入射中子能量0.456~150 MeV范围内的一组普适的中子与60Ni反应的光学模型势参数。利用光学模型、宽度涨落修正的Hauser-Feshbach理论、预平衡反应的激子模型和核内级联模型的中能核反应计算程序UNF和MEND,计算了中子与60Ni反应的所有截面、角分布和能谱,并将理论计算结果与实验数据和评价数据进行了分析比较。

关键词：光学模型中能核反应 UNF程序 MEND程序 ^60Ni

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中能中子与^(58)Ni反应的理论计算

高能物理与核物理 2006年第4期30卷 306-309页

作者：黄小龙中国原子能科学研究院北京102413

在中子与58Ni反应的总截面、去弹性散射截面和弹性散射角分布的实验数据基础上,获得了入射中子能量从0．825-150MeV的一组普适的中子与58Ni反应的光学模型势参数．利用光学模型、宽度涨落修正的Hauser-Feshbach理论、预平衡反应的激子... 详细信息

在中子与58Ni反应的总截面、去弹性散射截面和弹性散射角分布的实验数据基础上,获得了入射中子能量从0．825-150MeV的一组普适的中子与58Ni反应的光学模型势参数．利用光学模型、宽度涨落修正的Hauser-Feshbach理论、预平衡反应的激子模型和核内级联模型的中能核反应计算程序 MEND,计算了中子与58Ni反应的所有截面、角分布和能谱,并将理论计算结果与实验数据和评价数据进行了分析比较．

关键词：光学模型中能核反应 MEND ^58Ni

Preparative Resolution of Gatifloxacin Enantiomers with Pre-Column Esterification Strategy and Comparing Their Enantioselectivity to Bacteria and Antibody

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Biomedical and Environmental Sciences 2015年第2期28卷 157-160页

作者： ZHANG Chi Jian LEI Hong Tao huang xiao long LIU Ying Ju CAI Kai XU Zhen Lin SUN Yuan Ming Key Risk Assessment Laboratory of Agricultural Product Preservation Ministry of Agriculture/Guangdong Provincial Key Laboratory of Food Quality and Safety South China Agricultural University College of Sciences South China Agricultural University College of Life Science Shaanxi Normal University

Gatifloxacin （GFX） is a kind of chiral fluoroquinolones compound due to the methyl group at the C-3 position of the piperazine ring[1]. Although the enantiomers of GFX show similar levels of antimicrobial activity and pharmacokinetics[2], the other biological activities （i.e., toxicity or enantioselective recognition to various receptors in vivo） of GFX enantiomers have not yet been studied. With this in mind, we developed a rapid and cost-effective high performance liquid chromatographic （HPLC） separation procedure for GFX enantiomers with a pre-column esterification strategy.

关键词： Preparative Resolution of Gatifloxacin Enantiomers with Pre-Column Esterification Strategy and Comparing Their Enantioselectivity to Bacteria and Antibody DEA than

Impact of Blood Clot in Oocyte-Corona-Cumulus Complex during in vitro Fertilization and Embryo Transfer

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Journal of Reproduction and Contraception 2012年第1期23卷 57-63页

作者： Yu-ling huang xiao-ling long Yong FAN Wen-hong ZHANG Hong-zi DU Assisted Reproductive Center the Third Affiliated Hospital of Guangzhou Medical CollegeKey Laboratory for the Major Obstetric Disease in Guangdong ProvinceGuangzhou 510150China

Objective To study the impact of blood clots in the oocyte-corona-cumulus complexes （OCCC） during in vitro fertilization and embryo transfer （IVF-ET）.Methods The OCCCs were harvested from the patients undergoing long protocol ovarian hyperstimulation. The OCCCs with blood clots removed or not, were randomly grouped into A or B. The OCCCs without blood clots were group C （the control）.Results The patient＇s age, infertility duration, the average GN consumption, the average days of superovulation and an average number of harvested oocytes showed no significant difference in the 3 groups. The fertilization rate and 2PN rate in group A were the highest, which were 85.4% and 71.1%, respectively, followed by group C, which were 77.5% and 64.9%, respectively. The lowest fertilization rate and 2PN rate were in group B, 75.8% and 62.2%, respectively. Those in group A were significantly higher than those in groups B and C （P〈0.01）, while there was no significant difference between group B and group C. The implantation rates and pregnancy rates showed no significant difference in the 3 groups after transplantation, even if group A got the highest rate among the 3 groups. Conclusion Removing the blood clots in OCCC can improve the outcome of IVF-ET without increasing the cost and complexity of the operation.

关键词： in vitro fertilization and embryo transfer (IVF-ET) blood clot fertilization rate pregnancy

Effect of Incubation Temperature and Warming Solutions on the Viability and Maturation of Vitrified-thawed Human Immature Oocytes

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Journal of Reproduction and Contraception 2011年第2期22卷 65-74页

作者： Yu-ling huang xiao-lin long xiao-fang SUN Yong FAN Hong-zi DU Wen-hong ZHANG Yu SHI Li LI Han-yan LIU Reproductive Center of the Third Affiliated Hospital of Guangzhou Medical College Guangzhou 510150 China

Objective To investigate the viability and maturation of frozen-thawed human immature oocytes exposed to different temperature of vitrification and warming solutions. Methods The immature oocytes in germinal vesicle （GV） and matephase I （MI ） stages were collected from our ICSI patients and exposed to different temperature of vitrification and warming solutions before frozen in the freezing/thawing procedures. The different temperature groups were as follows： Group A, equilibration solution at 37℃, vitrification solution at room temperature, warming solution at 37℃; Group B, both vitrification and warming solution at room temperature; Group C, both vitrification and warming solutions at 37℃; Group D, the frozen-thawed oocytes and the fresh oocytes were cultured for in vitro maturation. The survival rate and maturation rate were compared among groups. The oocytes were examined using immunofluorescent stainingand confocal microscopy to check the spindle configuration and chromosome arrangement. Results The survival rates and MII rates of GV stage oocytes in groups A, B, C were 100%（15/15）, 81.3%（13/16）, 68.8%（11/16） and 33.3%（2/6）, 83.3%（10/12）,72.7%（8/11）, respectively. The survival rate of group C was significantly lower than that of the control （P〈0.05）. The normal spindle and chromosome configuration were only observed in group B, with the rates of 20% （2/20） and 10% （1/10）, respectively. The survival rates of MI stage in groups A, B, C were 71.4%（10/14）, 100% （12/12） and 83.3%（10/12）, no significantly difference from that of the contro1（100%, 14/14）. The MII rates of MI stage in groups A, B and C were 0%（0/14）, 66.7%（8/12） and 80% （8/10）, respectively. The MⅡ rate in group A was significantly lower than that in other groups （P〈0.01）. Only one oocyte in group C was found with normal spindle and chromosome configurations. Conclusion The appropriate operation temperature of vitrification and warming solutions can improve the outcomes of the vitrified-thawed human im

关键词： vitrification human immature oocytes spindle chromosome temperature

Evaluation of Excitation Functions for 96Zr(n,2n)95Zr and 176Hf(n,2n)175Hf Reaction

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Evaluation of Excitation Functions for 96Zr(n,2n)95Zr and 17...

基于Tikhonov正则化参数矩阵的激光吸收光谱燃烧场二维重建光路设计方法

作者： LIU Li-le huang xiao-long Department of Nuclear Physics

The measured experimental data forZr(n,2n)Zr andHf(n,2n)Hf are not much enough to fit corresponding excitation functions,and large discrepancy exists in some energy *** work collected much enough experimental data for these two reactions,including ones measured in recent years,and made some correction and *** a result,the more reasonable excitation functions are

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物理学报 2020年第22期69卷 368-378页

作者：李宁 Tu Xin 黄孝龙翁春生南京理工大学瞬态物理国家重点实验室南京210094 Department of Electrical Engineering and Electronics University of LiverpoolLiverpool L693GJUK

有限投影条件下激光吸收光谱二维测量光路优化对燃烧场重建结果具有重要影响.针对基于Tikhonov正则化的病态投影方程组求解问题,提出了基于正则化参数矩阵的光路设计与二维重建方法.建立了基于Tikhonov正则化参数矩阵的光路设计目标函数... 详细信息

有限投影条件下激光吸收光谱二维测量光路优化对燃烧场重建结果具有重要影响.针对基于Tikhonov正则化的病态投影方程组求解问题,提出了基于正则化参数矩阵的光路设计与二维重建方法.建立了基于Tikhonov正则化参数矩阵的光路设计目标函数,利用遗传算法获得最佳光路布置方式,通过匹配光路与正则化参数分布对测量区域内正则化权重进行调整以减小重建误差.采用7185.6 cm^–1波段H2O特征谱线并结合20条投影光路对10×10离散化测量区域内双峰高斯分布模型进行了重建,对5种光路布置方式重建结果进行了对比分析,结果表明基于Tikhonov正则化参数矩阵的光路布置方式重建结果最佳.光路数量越少, Tikhonov正则化参数矩阵作用效果越明显.开展了针对气液两相脉冲爆轰发动机外流场的模拟测量研究,验证了本文光路布置方式在复杂多变流场环境下重建效果.在实验室内针对小型燃气炉进行了实验测试,重建燃烧场峰值位置和幅值与实际情况吻合.研究结果对于推动激光吸收光谱二维重建技术在发动机诊断及燃烧效率提升方面的应用具有重要意义.

关键词：激光吸收光谱二维重建 Tikhonov正则化奇异值分解

烧结温度与混粉比例对双尺度钛合金组织与性能的影响

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粉末冶金材料科学与工程 2014年第5期19卷 736-742页

作者：王韬龙雁黄小龙王芬华南理工大学国家金属材料近净成形工程技术研究中心广州510641

采用高能球磨-放电等离子烧结技术制备具有双尺度显微组织的Ti-6Al-4V合金，并研究烧结温度和加入未球磨粉末的比例对烧结试样显微组织及力学性能的影响。实验结果表明：当球磨时间为6h时，由于球磨粉末内部的应变量不均匀，球磨粉末烧... 详细信息

采用高能球磨-放电等离子烧结技术制备具有双尺度显微组织的Ti-6Al-4V合金，并研究烧结温度和加入未球磨粉末的比例对烧结试样显微组织及力学性能的影响。实验结果表明：当球磨时间为6h时，由于球磨粉末内部的应变量不均匀，球磨粉末烧结试样的显微组织均由粗晶网篮组织和细晶等轴组织组成。随烧结温度升高，烧结试样的密度逐渐提高，细晶区的晶粒尺寸逐渐增大，材料强度呈先上升后下降的趋势。在球磨粉末中加入一定比例的未球磨粉末可显著提高烧结材料的塑性，并且保持较高的强度。当球磨粉末与未球磨粉末按质量比4：1混合、SPS烧结温度为850℃、保温时间为4 min时，烧结材料相对密度达到99.0%，细晶区晶粒尺寸为1~2μm，烧结试样获得最佳强度-塑性组合，其拉伸屈服强度为1012 MPa，断裂强度为1056 MPa，伸长率为10%。

关键词：高能球磨放电等离子烧结钛合金力学性能