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应用微卫星标记分析23个中国地方马种的遗传多样性

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生物多样性 2009年第3期17卷 240-247页

作者：凌英会成月娇王艳萍关伟军韩建林傅宝玲赵倩君何晓红浦亚斌马月辉中国农业科学院北京畜牧兽医研究所北京100193 农业部畜禽遗传资源与利用重点实验室北京100193 山西农业大学动物科技学院太谷030801

为了调查中国马种的群体遗传分化与遗传结构状况,本研究应用FAO和ISAG推荐的25对微卫星引物,结合荧光标记PCR分析技术,对中国23个马群体和1个英纯血马群体进行了分子遗传学研究。结果表明:中国地方马群体的遗传多样性比较丰富,23个中国... 详细信息

为了调查中国马种的群体遗传分化与遗传结构状况,本研究应用FAO和ISAG推荐的25对微卫星引物,结合荧光标记PCR分析技术,对中国23个马群体和1个英纯血马群体进行了分子遗传学研究。结果表明:中国地方马群体的遗传多样性比较丰富,23个中国马群体的等位基因数、多态信息含量和遗传杂合度等都高于英国纯血马。根据群体遗传距离构建的系统进化树,能够清晰地将英纯血马从中国马中独立出来,同时可将中国马群体分成不同的支,基本上与其地理分布格局相符。我们用MVSP软件进行群体遗传分化分析可见,前三个主成分的三维散点图可以明显地把英纯血马从所有群体中独立出来,并把中国的马群体分成几个相对独立的支。进一步分析第一、二主成分的二维散点图,可将中国的马群体分化成南方支系、藏马支系、新疆和青海支系、内蒙古支系及东北支系等5个部分。根据Structure软件分析,推测中国马群体含有5个潜在的支系,基本上代表了我国现在主要家马来源的基础遗传支系。这些信息可以为我国现有马种类型的划分与马种资源遗传多样性的保护提供科学依据。

关键词：马遗传变异遗传分化群体结构

High-Q resonances governed by the quasi-bound states in the continuum in all-dielectric metasurfaces

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Opto-Electronic Advances 2021年第6期4卷 1-10页

作者： Cizhe Fang Qiyu Yang Qingchen Yuan Xuetao Gan jianlin Zhao Yao Shao Yan Liu Genquan han Yue Hao State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology Shaanxi Joint Key Laboratory of GrapheneSchool of MicroelectronicsXidian UniversityXi’an 710071China MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information TechnologySchool of Physical Science and TechnologyNorthwestern Polytechnical UniversityXi’an 710129China Shanghai Energy Internet Research Institute of State Grid 251 Libing RoadPudong New AreaShanghai 201210China

The realization of high-Q resonances in a silicon metasurface with various broken-symmetry blocks is reported. Theoretical analysis reveals that the sharp resonances in the metasurfaces originate from symmetry-protected bound in the continuum(BIC) and the magnetic dipole dominates these peculiar states. A smaller size of the defect in the broken-symmetry block gives rise to the resonance with a larger Q factor. Importantly, this relationship can be tuned by changing the structural parameter, resulting from the modulation of the topological configuration of BICs. Consequently, a Q factor of more than 3,000 can be easily achieved by optimizing dimensions of the nanostructure. At this sharp resonance, the intensity of the third harmonic generation signal in the patterned structure can be 368 times larger than that of the flat silicon film. The proposed strategy and underlying theory can open up new avenues to realize ultrasharp resonances, which may promote the development of the potential meta-devices for nonlinearity, lasing action, and sensing.

关键词： all-dielectric metasurface bound states in the continuum optical nonlinearity topological configuration

Modulation of orbital angular momentum on the propagation dynamics of light fields

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Frontiers of Optoelectronics 2019年第1期12卷 69-87页

作者： Peng LI Sheng LIU Yi ZhanG Lei han Dongjing WU Huachao CHENG Shuxia QI Xuyue GUO jianlin ZHAO MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions and Shaanxi Key Laboratory of Optical Information TechnologySchool of ScienceNorthwestern Polytechnical UniversityXi’an 710072China

Optical vortices carrying orbital angular momentum(OAM)have attracted extensive attention in recent decades because of their interesting applications in optical trapping,optical machining,optical communication,quantum information,and optical *** effects induced by OAMs,such as angular momentum conversion,spin Hall effect of light(SHEL),and spin– orbital interaction,have also gained increasing *** this article,we provide an overview of the modulations of OAMs on the propagation dynamics of scalar and vector fields in free ***,we introduce the evolution of canonical and noncanonical optical vortices and analyze the modulations by means of local spatial ***,we review the Pancharatnam–Berry(PB)phases arising from spin–orbital interaction and reveal the control of beam evolution referring to novel behavior such as spindependent splitting and polarization singularity ***,we discuss the propagation and focusing properties of azimuthally broken vector vortex beams.

关键词： orbital angular momentum polarization spin angular momentum Pancharatnam-Berry (PB) phase angular diffraction

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γ-氨基丁酸对奶牛抗热应激效果的研究

现代畜牧科技 2021年第12期40卷 1-3页

作者：王源李伟刘春海韩建林苗畅齐董秀君王善兴王生辽宁菲迪饲料科技有限责任公司辽宁兴城125100

受全球气温逐渐上升的影响,热应激对奶牛的生产以及繁殖带来的危害日渐严重。热应激可导致采食量降低,机体代谢机能紊乱,生产性能降低,生理状态发生改变,严重时可导致中暑,甚至死亡,随着全球气温持续升高,热应激奶牛在未来可能会成为一... 详细信息

受全球气温逐渐上升的影响,热应激对奶牛的生产以及繁殖带来的危害日渐严重。热应激可导致采食量降低,机体代谢机能紊乱,生产性能降低,生理状态发生改变,严重时可导致中暑,甚至死亡,随着全球气温持续升高,热应激奶牛在未来可能会成为一个更普遍的问题。因此,找到缓解奶牛热应激、保证奶牛高产稳产的方法已成为从业者亟需解决的研究方向。γ-氨基丁酸是一种新型功能性因子,作为中枢的抑制性神经递质,具有镇静、降血压、抗惊厥等生理作用,在非神经组织中还能发挥激素或营养因子的功能,对动物机体正常的生理功能起着重要的调节作用。γ-氨基丁酸作为天然非蛋白质氨基酸的一员,不仅符合国家食品安全,也达到动物饲料安全的标准,还满足动物生产和饲料添加剂使用的需要,已展示出广阔的应用前景。

关键词： γ-氨基丁酸热应激添加剂生产性能

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Application of Novel Design Bone Grafting for Treatment of Segmental Acetabular Rim Defects During Revision Total Hip Arthroplasty

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Journal of Bionic Engineering 2021年第6期18卷 1369-1377页

作者： Xin Zhao Haowen Xue Yang Sun Aobo Zhang Yang Liu Hao Chen Qian Wan Jiangbo Zhang jianlin Xiao Chenyu Wang Qing han Jincheng Wang Orthopaedic Medical Center The 2nd Hospital of Jilin UniversityChangchun130041China Department of Orthopaedics China-Japan Union Hospital of Jilin UniversityChangchun130033China Department of Plastic and Reconstructive Surgery First Bethune Hospital of Jilin UniversityChangchun130021China

The study aimed to develop efficient techniques with different novel graft structures to enhance the treatment of acetabular bone *** inhomogeneous material properties Finite Element Analysis(FEA)model was reconstructed according to computed tomography images based on a healthy patient without any peri-acetabular bony defect according to the American Academy of Orthopedic Surgeons(AAOS).The FEA model of acetabular bone deficiency was performed to simulate and evaluate the mechanical performances of the grafts in different geometric structures,with the use of fixation implants(screws),along with the stress distribution and the relative micromotion of graft *** stress distribution mainly concentrated on the region of contact of the screws and superolateral *** the different structures,the mortise-tenone structure provided better relative micromotion,with suitable biomechanical property even without the use of *** novel grafting structures could provide sufficient biomechanical stability and bone remodeling,and the mortise-tenone structure is the optimal treatment option for acetabulum reconstruction.

关键词： Segmental defects of the acetabular rim Bone grafting Finite element analysis method Structure optimization Revision total hip arthroplasty

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植物精油在反刍动物生产中的应用

畜牧兽医科学（电子版） 2021年第4期 5-7,12页

作者：李伟刘春海韩建林陶春卫于光远苗畅齐董秀君李金戈杜新辽宁菲迪饲料科技有限责任公司葫芦岛125100

植物精油是从植物中萃取的混合物,主要成分为单萜、倍半萜、酚类、醇、醚、醛和酮等,已被证明是很好的饲料替抗添加剂,能提高动物生产性能、肠道菌群和动物福利,但在反刍动物生产中的应用报道较少。该文主要从精油对反刍动物乳房炎的防... 详细信息

植物精油是从植物中萃取的混合物,主要成分为单萜、倍半萜、酚类、醇、醚、醛和酮等,已被证明是很好的饲料替抗添加剂,能提高动物生产性能、肠道菌群和动物福利,但在反刍动物生产中的应用报道较少。该文主要从精油对反刍动物乳房炎的防治、体内外寄生虫作用效果和生产性能等方面进行阐述,讨论植物精油可能的作用机制,并提出未来的研究方向。

关键词：植物精油抗生素生长促进剂反刍动物生产

过瘤胃组合物对辽宁绒山羊母羊生产性能的影响

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现代畜牧科技 2022年第3期41卷 1-3页

作者：刘春海李伟孙亚波韩建林杜丹刘喜君李强田继东刘鑫苏皓瑀崔鹤曦辽宁菲迪饲料科技有限责任公司辽宁兴城125100 黑龙江省农业科学院畜牧兽医分院黑龙江齐齐哈尔161005 辽宁农业职业技术学院辽宁盘锦115009

本试验选取年龄、体重、胎次、预产期相近的妊娠后期母羊(距产羔60天)50只,随机分为5组,每组10只。第1、2、3组为过瘤胃葡萄糖试验组,基础日粮中分别添加15、25、50g/(头·天)的过瘤胃葡萄糖;第4组为过瘤胃组合物试验组;第5组为空白对照... 详细信息

本试验选取年龄、体重、胎次、预产期相近的妊娠后期母羊(距产羔60天)50只,随机分为5组,每组10只。第1、2、3组为过瘤胃葡萄糖试验组,基础日粮中分别添加15、25、50g/(头·天)的过瘤胃葡萄糖;第4组为过瘤胃组合物试验组;第5组为空白对照组,饲喂基础日粮。试验期150天。试验结果表明:产后1~3组比较,第2组对母羊失重的缓解效果最好,在产后第7天、14天、21天平均失重率分别为1.843%、2.035%、2.763%。但整体来看,第4组产后21天时,母羊已经恢复产后正常体重,且还增重0.876%。第4组对缓解母羊产后失重的效果最好。结论:对母羊添加单一过瘤胃葡萄糖的情况下,添加25g/(头·天)时对缓解母羊产后失重效果最好;但整体来看,过瘤胃组合物可以避免母羊产后失重的问题。

关键词：过瘤胃葡萄糖过瘤胃组合物绒山羊生产指标

Interference-assisted kaleidoscopic meta-plexer for arbitrary spin-wavefront manipulation

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Light(Science & Applications) 2019年第1期8卷 1141-1150页

作者： He-Xiu Xu Guangwei Hu Ying Li Lei han jianlin Zhao Yunming Sun Fang Yuan Guang-Ming Wang Zhi Hao Jiang Xiaohui Ling Tie Jun Cui Cheng-Wei Qiu Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore Air and Missile Defense College Air force Engineering University710051 Xi’anChina Hunan Provincial Key Laboratory of Intelligent Information Processing and Applications College of Physics and Electronics EngineeringHengyang Normal University421008 HengyangChina School of Natural and Applied Sciences Northwestern Polytechnical University710072 Xi’anChina Advanced Technique Department Key Lab of Aeronautics Computing Technique710075 Xi’anChina State Key Laboratory of Millimeter Waves Southeast University210096 NanjingChina

Achieving simultaneous polarization and wavefront control,especially circular polarization with the auxiliary degree of freedom of light and spin angular momentum,is of fundamental importance in many optical *** are typically undesirable in highly integrated photonic circuits and ***,we propose an interference-assisted metasurface-multiplexer(meta-plexer)that counterintuitively exploits constructive and destructive interferences between hybrid meta-atoms and realizes independent spin-selective wavefront *** kaleidoscopic meta-plexers are experimentally demonstrated via two types of single-layer spinwavefront multiplexers that are composed of spatially rotated anisotropic *** type generates a spinselective Bessel-beam wavefront for spin-down light and a low scattering cross-section for stealth for spin-up *** other type demonstrates versatile control of the vortex wavefront,which is also characterized by the orbital angular momentum of light,with frequency-switchable numbers of beams under linearly polarized wave *** findings offer a distinct interference-assisted concept for realizing advanced multifunctional photonics with arbitrary and independent spin-wavefront features.A variety of applications can be readily anticipated in optical diodes,isolators,and spin-Hall meta-devices without cascading bulky optical elements.

关键词： arbitrary momentum versatile

过瘤胃组合物对辽宁绒山羊母羊血液指标的影响

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现代畜牧科技 2022年第2期41卷 8-12,18页

作者：刘春海李伟孙亚波韩建林李夏云杜丹刘鑫刘喜君李强田继东苏皓瑀崔鹤曦辽宁菲迪饲料科技有限责任公司辽宁兴城125100 黑龙江省农业科学院畜牧兽医分院黑龙江齐齐哈尔161005 辽宁农业职业技术学院辽宁盘锦115009

本试验选取50只胎次、预产期、体重相近的健康妊娠后期母羊,随机分成5组。第一、二、三组在基础日粮中依次添加15g/(头·天)、25g/(头·天)、50g/(头·天)的过瘤胃葡萄糖;第四组在基础日粮中分别添加过瘤胃葡萄糖25g/(头·天)、过瘤胃胆... 详细信息

本试验选取50只胎次、预产期、体重相近的健康妊娠后期母羊,随机分成5组。第一、二、三组在基础日粮中依次添加15g/(头·天)、25g/(头·天)、50g/(头·天)的过瘤胃葡萄糖;第四组在基础日粮中分别添加过瘤胃葡萄糖25g/(头·天)、过瘤胃胆碱3g/(头·天)、过瘤胃赖氨酸15g/(头·天)、过瘤胃蛋氨酸5g/(头·天);第五组为饲喂基础日粮的对照组。试验期150天。试验结果表明:产前2周:第二组和第四组,母羊血清葡萄糖(GLU)浓度显著高于对照组(P0.05)。结论:过瘤胃葡萄糖和过瘤胃组合物均有很好的改善母羊妊娠期血液指标的作用。建议将过瘤胃葡萄糖添加量设在25~50g/天·头之间,其效果较好。

关键词：过瘤胃组合物绒山羊血液指标过瘤胃葡萄糖