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Bose--Einstein Condensates with Two- and Three-Body Interactions in an Anharmonic Trap at Finite Temperature

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Chinese Physics Letters 2010年第3期27卷 25-28页

作者：李好财陈海军薛具奎 College of Physics and Electronics Engineering Northwest Normal University Lanzhou 730070

The transition temperature, the depletion of the condensate atoms and the collective excitations of a Bose-Einstein condensation （BEC） with two- and three-body interactions in an anharmonic trap at finite temperature are studied in detail. By using the Popov version of the Hartree-Fock-Bogoliubov （HFB） approximation, an extended self-consistent model describing BEC with both two- and three-body interactions in a distorted harmonic potential at finite temperature is obtained and solved numerically. The results show that the transition temperature, the condensed atom number and the collective excitations are modified dramatically by the atomic three-body interactions and the distortion of the harmonic trap.

关键词： Atomic and molecular physics Quantum gases liquids and solids Computational physics

An Over Modulation Strategy and Simulation Study for Matrix Converter

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微计算机信息 2008年第6期24卷 285-287,304页

作者： li ZHIYONG cai hao li XIAOYING CHEN HAIXIA (College of Electrical and Information Engineering,Changsha University of Science and Technology,Changsha 410076,Hunan Province)

The over modulation strategy of matrix converter(MC) is put forward on the basis of conventional AC/DC/AC MC control theory. Firstly,imaginary AC/DC converter is over modulated to get the greatest fictitious DC voltage,secondly,imaginary DC/AC converter is over modulated,which effectively improve the voltage transfer ratio. Two voltage transfer ratio is emphatically analyzed with Fourier transform. At last,different modulation method is simulated with MATLAB,the simulation results verified the theoretical analysis and validity of the over modulation strategy,which provide a theoretical basis for the further research.

关键词： MC over modulation voltage transfer ratio Fourier transform simulation

Effect of oxygen on regulation of properties of moderately boron-doped diamond films

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Chinese Physics B 2022年第12期31卷 591-597页

作者： Dong-Yang liu li-cai hao Wei-Kang Zhao Zi-Ang Chen Kun Tang Shun-Ming Zhu Jian-Dong Ye Rong Zhang You-Dou Zheng Shu-lin Gu School of Electronic Science and Engineering Nanjing UniversityNanjing 210093China The Shanghai Huahong Grace Semiconductor Manufacturing Corporation Shanghai 201203China Collaborative Innovation Center of Solid-State lighting and Energy-Saving Electronics Nanjing UniversityNanjing 210093China

Regulation of oxygen on properties of moderately boron-doped diamond films is fully *** show that,with adding a small amount of oxygen(oxygen-to-carbon ratio<5.0%),the crystal quality of diamond is improved,and a supp... 详细信息

Regulation of oxygen on properties of moderately boron-doped diamond films is fully *** show that,with adding a small amount of oxygen(oxygen-to-carbon ratiolity of diamond is improved,and a suppression effect of residual nitrogen is *** increasing ratio of O/C from 2.5%to 20.0%,the hole concentration is firstly increased then *** change of hole concentration is also ***,the results of Hall effect measurement with temperatures from 300 K to 825 K show that,with adding a small amount of oxygen,boron and oxygen complex structures(especially B_(3)O and B_(4)O)are formed and exhibit as shallow donor in diamond,which results in increase of donor *** further increase of ratio of O/C,the inhibitory behaviors of oxygen on boron leads to decrease of acceptor concentration(the optical emission spectroscopy has shown that it is decreased with ratio of O/C more than 10.0%).This work demonstrates that oxygen-doping induced increasement of the crystalline and surface quality could be restored by the co-doping with *** technique could achieve boron-doped diamond films with both high quality and acceptable hole concentration,which is applicable to electronic level of usage.

关键词： moderately boron doped diamond crystal quality suppression effect boron and oxygen complex structures

liposome-mediated IL-28 and IL-29 expression in A549 cells and antiviral effect of IL-28 and IL-29 on WISH cells

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Acta Pharmacologica Sinica 2006年第4期27卷 453-459页

作者： Ming-cai li hao-yang WANG Hai-yan WANG Tao li Shao-heng HE~2 Allergy and Inflammation Research Institute.Shantou University Medical College.Shantou 515041,China AllergyandInflammationResearchInstitute ShantouUniversityMedicalCollegeShantou515041China

Aim:To construct the recombinant vectors carrying interleukin(IL)-28A,IL-28Band IL-29 cDNAs and express them in human A549 cells,and analyze their antivi-ral activity in vesicular stomatitis virus(VSV)-infected human immortalized am-nion epithelial cell line(WISH cells).Methods:Total cell RNA was extracted fromhuman peripheral blood mononuclear cells(PBMC)activated with poly I:*** encoding human IL-28A,IL-28B,and IL-29 were amplified by reverse-transcription polymerase chain reaction(RT-PCR)and inserted into pcDNA3.1/V5-His-TOPO *** recombinant vectors were transfected into humanA549 cells by a liposome-mediated gene transfer *** RT-PCR and Western blotting were used to detect the mRNA and protein expressionof IL-28A,IL-28B,and *** antiviral activity of IL-28A,IL-28B,and IL-29was determined by a cytopathic effect reduction assay on WISH cells using VSVas a challenge ***:The DNA sequences of the inserts were identical tothe published sequences encoding IL-28A,IL-28B,and IL-29 in *** wasdemonstrated that IL-28A,IL-28B,and IL-29 genes were markedly transcribed intransfected *** of all 3 interleukins in A549 cells was confirmed byWestern blot ***-28 and IL-29 expressed by A549 cells,like interferon(IFN)α-2b,were able to protect WISH cells against VSV ***:IL-28 and IL-29 cDNAs were successfully cloned and expressed in eukaryoticcells via transfection with pcDNA3.1/V5-His-TOPO-IL-28/*** withthis vector produced a specific antiviral activity similar to that of IFN-α,which willprovide a new tool for the functional study of these cytokines in humans.

关键词： human interleukin-28A protein human interleukin-28B protein human interleukin-29 protein gene expression liposomes antiyiral agents

Activation of adult endogenous neurogenesis by a hyaluronic acid collagen gel containing basic fibroblast growth factor promotes remodeling and functional recovery of the injured cerebral cortex

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Neural Regeneration Research 2025年第10期20卷 2923-2937页

作者： Yan li Peng hao Hongmei Duan Fei hao Wen Zhao Yudan Gao Zhaoyang Yang Kwok-Fai So Xiaoguang li Department of Neurobiology School of Basic Medical SciencesCapital Medical UniversityBeijingChina China Rehabilitation Science Institute China Rehabilitation Research CenterBeijing Key Laboratory of Neural Injury and RehabilitationBeijingChina Center of Neural Injury and Repair Beijing Institute for Brain DisordersBeijingChina Beijing Key Laboratory for Biomaterials and Neural Regeneration School of Engineering MedicineBeihang UniversityBeijingChina Guangdong-HongKong-Macao Institute of CNS Regeneration Ministry of Education CNS Regeneration Collaborative Joint LaboratoryJinan UniversityGuangzhouGuangdong ProvinceChina Bioland Laboratory(Guangzhou Regenerative Medicine and Health Guangdong Laboratory) GuangzhouGuangdong ProvinceChina Department of Ophthalmology and State Key Laboratory of Brain and Cognitive Sciences The University of Hong KongHong Kong Special Administration RegionChina Center for Brain Science and Brain-Inspired Intelligence Guangdong-HongKong-Macao Greater Bay AreaGuangzhouGuangdong ProvinceChina Co-innovation Center of Neuroregeneration Nantong UniversityNantongJiangsu ProvinceChina Department of Biomedical Engineering School of Biological Science and Medical EngineeringBeihang UniversityBeijingChina

The presence of endogenous neural stem/progenitor cells in the adult mammalian brain suggests that the central nervous system can be repaired and regenerated after ***,whether it is possible to stimulate neurogenesis and reconstruct cortical layers II to VI in non-neurogenic regions,such as the cortex,remains *** this study,we implanted a hyaluronic acid collagen gel loaded with basic fibroblast growth factor into the motor cortex immediately following traumatic *** findings reveal that this gel effectively stimulated the proliferation and migration of endogenous neural stem/progenitor cells,as well as their differentiation into mature and functionally integrated ***,these new neurons reconstructed the architecture of cortical layers II to VI,integrated into the existing neural circuitry,and ultimately led to improved brain *** findings offer novel insight into potential clinical treatments for traumatic cerebral cortex injuries.

关键词： adult endogenous neurogenesis basic fibroblast growth factor-hyaluronic acid collagen gel cortical remodeling functional recovery migration motor cortex injury neural circuits neural stem cells newborn neurons proliferation

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武汉近代城市规划管理机构的形成及其特点

武汉理工大学学报 2010年第2期32卷 43-46页

作者：郭建李彩李百浩武汉理工大学土木工程与建筑学院武汉430070

作为中国内陆特大城市,近代武汉的城市规划是比较有特点的。为了适应近代工业化、商业化与城市化的需求,武汉根据现实环境要求,在吸取殖民式与西方式城市规划管理经验的基础上,不断完善自身的城市规划管理功能,在旧城改造与新市区开发... 详细信息

作为中国内陆特大城市,近代武汉的城市规划是比较有特点的。为了适应近代工业化、商业化与城市化的需求,武汉根据现实环境要求,在吸取殖民式与西方式城市规划管理经验的基础上,不断完善自身的城市规划管理功能,在旧城改造与新市区开发中发挥了重要作用。简要地梳理了武汉近代城市规划与建设发展历程,论述了近代武汉城市规划管理机构的演变过程及其特征,揭示了近代城市规划管理形态的影响因素与发展规律。

关键词：中国近代史武汉近代城市规划史城市规划管理

Laser-Induced Highly Stable Conductive Hydrogels for Robust Bioelectronics

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NANO-MICRO LETTERS 2025年第1期17卷 1-4页

作者： li, Yibo Zhou, hao Yang, Huayong Xu, Kaichen Zhejiang Univ Sch Mech Engn State Key Lab Fluid Power & Mechatron Syst Hangzhou 310058 Peoples R China

Despite the promising progress in conductive hydrogels made with pure conducting polymer, great challenges remain in the interface adhesion and robustness in long-term monitoring. To address these challenges, Prof. Seung Hwan Ko and Taek-Soo Kim's team introduced a laser-induced phase separation and adhesion method for fabricating conductive hydrogels consisting of pure poly(3,4-ethylenedioxythiophene):polystyrene sulfonate on polymer substrates. The laser-induced phase separation and adhesion treated conducting polymers can be selectively transformed into conductive hydrogels that exhibit wet conductivities of 101.4 S cm-1 with a spatial resolution down to 5 mu m. Moreover, they maintain impedance and charge-storage capacity even after 1 h of sonication. The micropatterned electrode arrays demonstrate their potential in long-term in vivo signal recordings, highlighting their promising role in the field of bioelectronics.

关键词： Laser processing Conductive hydrogels Stable interface Bio-interfacing electrodes Bioelectronic application

Ultra‑High Sensitivity Anisotropic Piezoelectric Sensors for Structural Health Monitoring and Robotic Perception

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Nano-Micro Letters 2025年第2期17卷 432-446页

作者： hao Yin Yanting li Zhiying Tian Qichao li Chenhui Jiang Enfu liang Yiping Guo State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China Beijing Vacuum Electronics Research Institute Beijing 100015People’s Republic of China Fundamental Science On Vibration Shock and Noise LaboratoryState Key Laboratory of Mechanical System and VibrationSchool of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Monitoring minuscule mechanical signals,both in magnitude and direction,is imperative in many application scenarios,e.g.,structural health monitoring and robotic sensing ***,the piezoelectric sensor struggles to satisfy the requirements for directional recognition due to the limited piezoelectric coefficient matrix,and achieving sensitivity for detecting micrometer-scale deformations is also ***,we develop a vector sensor composed of lead zirconate titanate-electronic grade glass fiber composite filaments with oriented arrangement,capable of detecting minute anisotropic *** as-prepared vector sensor can identify the deformation directions even when subjected to an unprecedented nominal strain of 0.06%,thereby enabling its utility in accurately discerning the 5μm-height wrinkles in thin films and in monitoring human pulse *** ultra-high sensitivity is attributed to the formation of porous ferroelectret and the efficient load transfer efficiency of continuous lead zirconate titanate ***,when integrated with machine learning techniques,the sensor’s capability to recognize multi-signals enables it to differentiate between 10 types of fine textures with 100%*** structural design in piezoelectric devices enables a more comprehensive perception of mechanical stimuli,offering a novel perspective for enhancing recognition accuracy.

关键词： Flexible piezoelectric filaments Anisotropic Ultra-high sensitivity Structural health detection Texture recognition

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煤电油气运远程监测及集中调度模式研究

电力信息与通信技术 2013年第8期11卷 39-42页

作者：李号彩大唐先一科技有限公司湖南长沙410007

为了解决煤电油气运等战略资源日益突出的供需矛盾,转变政府职能,提高服务水平,分析了湖南省煤电油气运等战略资源的现状与突出问题,采用信息建模、计算引擎、远程通信及视频监视等技术,研究了一种包含煤炭、电力、成品油、天然气、交... 详细信息

为了解决煤电油气运等战略资源日益突出的供需矛盾,转变政府职能,提高服务水平,分析了湖南省煤电油气运等战略资源的现状与突出问题,采用信息建模、计算引擎、远程通信及视频监视等技术,研究了一种包含煤炭、电力、成品油、天然气、交通运输等战略资源的信息采集、视频监视、远程监测、辅助决策与集中调度等功能于一体的新模式,在涉及战略资源的40多家重点企业得到成功应用后,全省战略资源供需矛盾得到了有效缓解。

关键词：煤电油气运远程监测集中调度