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Modulational Instability of Dipolar Bose-Einstein Condensates in Optical Lattices with Three-Body Interactions

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Chinese Physics Letters 2018年第1期35卷 6-9页

作者： Wei Qi Zi-Hao Li zhao-xin liang Department of Applied Physics School of Arts and SciencesShaanxi University of Science and TechnologyXi'an 710021 Department of Physics Zhejiang Normal UniversityJinhua 321004

Motivated by the recent experiment[Nature 530(2016)194]in which a stable droplet in a dipolar quantum gas has been created by the interaction-induced instability,we focus on the modulation instability of an optically-trapped dipolar Bose-Einstein condensate with three-body *** the mean-field level,we analytically solve the discrete cubic-quintic Gross-Pitaevskii equation with dipole-dipole interaction loaded into a deep optical lattice and show how combined effects of the three-body interaction and dipole-dipole interaction on the condition of modulational *** results show that the interplay of the three-body interaction and dipole-dipole interaction can dramatically change the modulation instability condition compared with the ordinary Gross-Pitaevskii *** believe that the predicted results in this work can be useful for the future possible experiment of loading a Bose-Einstein condensate of^(164)Dy atoms with strong magnetic dipole-dipole interaction into an optical lattice.

关键词： Optical lattices

Variational Approach to Study PT-Symmetric Solitons in a Bose–Einstein Condensate with Non-locality of Interactions

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Chinese Physics Letters 2019年第4期36卷 10-14页

作者： Wei Qi Hai-Feng Li zhao-xin liang Department of Applied Physics School of Arts and Sciences Shaanxi University of Science and Technology School of Science Xi'an Technological University Department of Physics Zhejiang Normal University

Considering the non-locality of interactions in a Bose–Einstein condensate, the existence and stability of solitons subject to a PT-symmetric potential are discussed. In the framework of the variational approach, we investigate how the non-locality of interactions affects the self-localization and stability of a condensate with attractive two-body interactions. The results reveal that the non-locality of interactions dramatically influences the shape,width, and chemical potential of the condensate. Analytically variational computation also predicts that there exists a critical negative non-local interaction strength(p_c 0), there always exist stable bright solitons in some appropriate parameter regimes.

关键词： interactions stability influences

Arachnoid cell involvement in the mechanism of coagulation-initiated inflammation in the subarachnoid space after subarachnoid hemorrhage

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2010年第7期11卷 516-523页

作者： zhao-liang xin Xiao-kang WU Jian-rong XU Xi LI Department of Neurosurgery Zhejiang Medical College Hangzhou 310053 China Department of Neurosurgery Shanghai Tenth People's Hospital Shanghai 200072 China Department of Neurosurgery Yiwu Central Hospital Yiwu 322000 China

Objective： To assess if arachnoid cells have the capability to present antigen and activate T-lymphocytes after stimulation by bloody cerebrospinal fluid （CSF）, and to illuminate the mechanism of coagulation-initiated inflammation in the subarachnoid space after subarachnoid hemorrhage （SAH）. Methods： Arachnoid cells were cultured, characterized, and examined by immunofluorescence for the basal expression of human leukocyte antigen-DR （HLA-DR）, Expression of HLA-DR, after co-culturing arachnoid cells in vitro with bloody CSF, was investigated by immunofluorescence and flow cytometry （FCM）. The variation of arachnoid cells＇ ultrastructure was observed by transmission electron microscope （TEM）. Arachnoid cells were co-cultured with peripheral blood mononuclear cells （PBMCs）. The content of soluble interleukin-2 receptor （slL-2r） in culture medium was detected by enzyme-linked immunosorbent assay （ELISA）. Results：（1） Arachnoid cells were successfully cultured for many passages. The immunofluorescent staining was positive for HLA-DR in over 95% of the human arachnoid cells. The punctate HI_A-DR was distributed in cytoplasm and not in the karyon. （2） After co-culturing arachnoid cells in vitro with bloody CSF, numerous particles with strong fluorescence appeared in the cytoplasm on Day 6. On Day 8, the quantity of particles and fluorescent intensity were maximal. FCM showed that the percentage of HLA-DR expressing cells was （2.5＋_0.4）% at the first 5 d, increasing to （60.8＋_3.6）% on Day 7. （3） After co-culturing arachnoid cells in vitro with bloody CSF, many lysosome and secondary lysosome particles were present in the cytoplasm. Hyperplasia of rough endoplasmic re- ticulum and enlarged cysts were observed, with numerous phagocytizing vesicles also observed at the edge of the arachnoid cells. （4） Arachnoid cells stimulated by bloody CSF were co-cultured in vitro with PBMCs. The content of slL-2r in the culture medium, having been maintained at around 1.30 ng/ml during t

关键词： Arachnoid cells Cell culture Human leukocyte antigen-DR (HLA-DR) Soluble intedeukin-2 receptor (slL-2r)

Screening and Analysis of Proteins Interacting with TaPDK from Physiological Male Sterility Induced by CHA in Wheat

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Journal of Integrative Agriculture 2013年第6期12卷 941-950页

作者： ZHANG Long-yu ZHANG Gai-sheng zhao xin-liang YANG Shu-ling College of Agronomy Northwest A&F University/Wheat Breeding Engineering Research Center Ministry of Education/Key Laboratory of Crop Heterosis of Shaanxi Province

To further research the regulatory network of pyruvate dehydrogenase kinase （designated as TaPDK） in physiological male-sterility （PHYMS） of wheat induced by chemical hybridizing agent （CHA） SQ-1, an anther cDNA library was constructed, and the proteins interacting with TaPDK were screened via yeast two-hybrid technique. Subsequently, a few candidate proteins in nucleotide expression levels were detected by real-time quantitative PCR. Yeast-two hybrid screening was performed by mating yeast strain Y2HGold containing BD-TaPDK bait plasmid with yeast strain Y187 including anther cDNA library plasmid. Diploid yeast cells were plated on synthetic dropout nutrient medium （SD/-Ade/-His/-Leu/-Trp）（QDO）, and further were incubated on QDO medium containing AbA and X-α-Gal. The interactions between TaPDK and the proteins obtained from positive colonies were further confirmed by co-transformation validation. After plasmids DNA were extracted from blue colonies and sequenced, the sequences results were analyzed by bioinformatic methods. Finally, 24 colonies were obtained, including eight genes, namely non-specific lipid-transfer protein precursor （TanLTP）, polyubiquitin （TaPUbi）, glyceraldehyde-3-phosphate dehydrogenase, proliferating cell nuclear antigen （TaPCNA）, CBS domain containing protein （TaCBS）, actin, guanine nucleotide-binding protein beta subunit, chalcone synthase, and three new genes with unknown function. The results of quantitative RT-PCR showed that the expression levels of TanLTP, TaPUbi, and TaPCNA were obviously up-regulated in PHYMS anther, and TaCBS expression was only increased at the tricellular stage in PHYMS anther compared with in fertile lines. Whereas, the expression of TaPDK was obviously down-regulated in PHYMS lines. Collectively, these datas indicated that the majority of candidate proteins might be related to pollen abortion in PHYMS lines, which further suggested that TaPDK plays multiple roles in pollen development, besides participating in r

关键词： wheat (Triticum aestivum L.) chemical hybridizing agent pyruvate dehydrogenase kinase yeast two-hybrid pollen abortion

Synthesis and Characterization of Fluorine-containing Poly(ether ether ketone)s

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Chemical Research in Chinese Universities 2010年第4期26卷 672-674页

作者： ZHANG Pei zhao Yun TANG xin-liang ZHOU Ming-ji JIAO Qing-ze School of Chemical Engineering and Environment Beijing Institute of Technology Beijing 100081 P. R. China

Poly（ether ether ketone）s（PEEK） are a class of high performance engineering thermoplastics known for their excellent thermal, mechanical, and electrical properties. This class of advanced materials has currently received considerable attention for potential application in aerospace, electronics, automobile and other high technology fields. However, it is difficult for PEEK to be processed because of their high melting temperature and poor solubility.

关键词： Fluorine-containing polymer Solubility Dielectric constant

基于产业技术特征的企业创新策略分析框架——以辽宁装备制造业为例

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东北大学学报（自然科学版） 2009年第6期30卷 897-900页

作者：赵建华赵新良东北大学工商管理学院辽宁沈阳110004

将产业发展的技术环境分为外部环境和内部环境,其中外部环境主要包括产业技术变化率和技术能力异质性;内部环境主要指产业技术能力.在对产业技术变化率、技术能力异质性和技术能力分别进行阐述的基础上,构建以这三个因素为基本维度的产... 详细信息

将产业发展的技术环境分为外部环境和内部环境,其中外部环境主要包括产业技术变化率和技术能力异质性;内部环境主要指产业技术能力.在对产业技术变化率、技术能力异质性和技术能力分别进行阐述的基础上,构建以这三个因素为基本维度的产业技术特征评价方法.运用该方法评价产业技术特征并根据产业技术特征进行产业聚类,给出基于产业技术特征的企业技术创新策略分析框架,为企业进行技术预见、技术环境分析、技术创新策略选择等提供理论依据和分析方法.对辽宁省装备制造业12个产业进行应用实例分析.

关键词：技术特征变化率技术能力异质性创新策略

Intracerebral xenotransplantation of semipermeable membrane- encapsuled pancreatic islets

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World Journal of Gastroenterology 2005年第36期11卷 5714-5717页

作者： zhao-liang xin Song-Lin Ge Xiao-Kang Wu Yan-Jie Jia Han-Tao Hu Neurosurgery Department of Yiwu Central Hospital 3rd Faculty of Medical College Zhejiang University Yiwu 322000 Zhejiang Province China 3rd Faculty of Medical College Zhejiang University Hangzhou 310016 Zhejiang Province China Department of Neurosurgery Affiliated Hospital of Railway University Shanghai China Department of Anatomy Medical College Xi'an Jiaotong University Xi'an 710007 Shaanxi Province China

AIM： To identify the decreasing effect of xenotransplantion in combination with privileged sites on rejection and death of biological semipermeable membrane-（BSM） encapsulated implanted islets. METHODS： After the BSM experiment in vitro, BSM- encapsulated SD rat＇s islet-like cell clusters （ICCs） were xenotransplanted into normal dog＇s brain. Morphological changes were observed under light and transmission electron microscope. The islets and apoptosis of implanted B cells were identified by insulin-TONEL double staining. RESULTS： The BSM used in our study had a favorable permeability, some degree of rigidity, lighter foreign body reaction and toxicity. The grafts consisted of epithelioid cells and loose connective tissue. Severe infiltration of inflammatory cells was not observed. The implanted ICCs were identified 2 mo later and showed typical apoptosis. CONCLUSION： BSM xenotransplantation in combination with the privileged site can inhibit the rejection of implanted heterogeneous ICCs, and death of implanted heterogeneous B cells is associated with apoptosis. 2005 The WJG Press and Elsevier Inc. All rights reserved.

关键词： Islets of Langerhans Xenotransplantation Brain Semipermeable membrane

维普期刊数据库评论

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维普期刊数据库

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基于因子分析的企业家选拔评价创新研究

东北大学学报（自然科学版） 2009年第3期30卷 449-452页

作者：毛惠媛赵新良东北大学工商管理学院辽宁沈阳110004

企业家的选拔是每一个企业最艰难、也是最关键的环节.为了确保企业能够招聘到真正的企业家,采用文献分析的方法,归纳性地总结并提出了企业家能力资本的构成要素作为企业家选拔评价的理论框架;基于268份有效问卷通过探索性及验证性因子分... 详细信息

企业家的选拔是每一个企业最艰难、也是最关键的环节.为了确保企业能够招聘到真正的企业家,采用文献分析的方法,归纳性地总结并提出了企业家能力资本的构成要素作为企业家选拔评价的理论框架;基于268份有效问卷通过探索性及验证性因子分析,构建了一个四要素组成的企业家能力资本内容,采用结构方程建模的方法对模型进行拟合,结果证明企业家能力资本选拔评价的要素由知识、智力、素质和健康4个要素32项条目构成.

关键词：企业家选拔评价创新能力资本

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气氮调温器Y型喷嘴实验及数值研究

航空动力学报 2016年第12期31卷 2904-2912页

作者：王泽邢玉明刘鑫赵亮北京航空航天大学航空科学与工程学院北京100191

基于FLUENT软件离散相模型及气体助力雾化模型,采用欧拉-拉格朗日方法研究通过Y型喷嘴雾化液氮的雾化特性.由于液氮液滴的蒸发相变,与水相比喷雾锥角更清晰且明显减小,约为10°,喷雾距离缩短.分析喷嘴气液工作压力对液氮雾化索太尔平均... 详细信息

基于FLUENT软件离散相模型及气体助力雾化模型,采用欧拉-拉格朗日方法研究通过Y型喷嘴雾化液氮的雾化特性.由于液氮液滴的蒸发相变,与水相比喷雾锥角更清晰且明显减小,约为10°,喷雾距离缩短.分析喷嘴气液工作压力对液氮雾化索太尔平均直径(SMD)、液滴体积分数和数量分数的影响.结果表明:SMD沿喷射方向变化幅度极小;SMD主要受气相速度及气液比影响,气压低时气相速度影响较大,气压高时气液比影响较大;由于相变作用,液氮雾化粒径分布更为集中.数值研究Y型喷嘴用于不同流量需求的气氮调温器的调温效果,出口温度低于98K,进出口温差达到12K,且整个出口温差在±1K以内,能够实现精确控温要求.

关键词： Y型喷嘴雾化液氮低温环境模拟气氮调温器