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High density collinear holographic data storage system

Frontiers of Optoelectronics 2014年第4期7卷 443-449页

作者： Xiaodi TAN Xiao lin An'an WU Jingliang zang School of Optoelectronics Beijing Institute of Technology Beijing 100081 China

Holographic data storage system （HDSS） has been a good candidate for a volumetric recording technology, due to their large storage capacities and high transfer rates, and have been researched for tens of years after the principle of holography was first proposed. However, these systems, called conventional 2-axis holography, still have essential issues for commercialization of products. Collinear HDSS, in which the information and reference beams are modulated co-axially by the same spatial light modulator （SLM）, as a new read/write method for HDSS are very promising. With this unique configuration, the optical pickup can be designed as small as DVDs, and can be placed on one side of the recording media （disc）. In the disc structure, the preformatted reflective layer is used for the focus/tracking servo and reading address information, and a dichroic mirror layer is used for detecting holographic recording information without interfering with the preformatted information. A 2-dimensional digital page data format is used and the shift-multiplexing method is employed to increase recording density. As servo technologies are being introduced to control the objective lens to be maintained precisely to the disc in the recording and reconstructing process, a vibration isolator is no longer necessary. Collinear holography can produce a small, practical HDSS more easily than conventional 2-axis holography. In this paper, we introduced the principle of the collinear holography and its media structure of disc. Some results of experimental and theoretical studies suggest that it is a very effective method. We also discussed some methods to increase the recording density and data transfer rates of collinear holography.

关键词： holographic data storage system (HDSS),holography optical memory volumetric recording optical disc high density recording

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Discovery of Alkaloid Quinazolone-Derived Imidazolenones with Novel Structural Scaffolds of Multitargeting Antibacterial Potential

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Chinese Journal of Chemistry 2023年第24期41卷 3645-3661页

作者： Jie Dai Narsaiah Battini Zhong-lin zang Yan Luo Cheng-He Zhou Institute of Bioorganic & Medicinal Chemistry Key Laboratory of Applied Chemistry of Chongqing MunicipalitySchool of Chemistry and Chemical EngineeringSouthwest UniversityChongqing400715 China College of Pharmacy National & Local Joint Engineering Research Center of Targeted and Innovative TherapeuticsChongqing Key Laboratory of Kinase Modulators as Innovative MedicineChongqing University of Arts and SciencesChongqing402160 China

Alkaloids are one of the prominent members in the development of new antimicrobial *** work discovered a class of alkaloid quinazolone-derived imidazolenones as novel structural type of antibacterial agents with large potential to treat severe bacterial infections in the agricultural and food *** bioactive assay displayed that some of the prepared compounds exhibited good inhibition against the tested strains,and cyclohexylimidazole-derived 7-fluoroquinazolone 22a(MIC=0.002 mmol/L)exhibited a 12.5-fold stronger inhibition than norfloxacin against Escherichia coli ATCC *** studies revealed that compound 22a not only possessed the ability of rapid bactericidal property and low propensity to develop resistance but also showed low cytotoxic effects toward red blood *** preliminary mechanism exploration indicated that compound 22a could cause membrane damage by disrupting bacterial membrane as well as depolarizing the cell ***,compound 22a could insert into DNA,which might hinder the replication of *** docking suggested that compound 22a could bind to gyrase and topoisomerase,which might be due to the suppressed expression of related ***,compound 22a could disorder the metabolism and stimulate the production of reactive oxygen species to affect bacterial *** series of investigations suggested the promise of alkaloid quinazolone-derived imidazolenones as novel multitargeting antibacterial candidates for treatment of bacterial infections.

关键词： Quinazolone Imidazole Antibacterial Enone DNA

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Estimation and Long-term Trend Analysis of Surface Solar Radiation in Antarctica: A Case Study of Zhongshan Station

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Advances in Atmospheric Sciences 2021年第9期38卷 1497-1509页

作者： Zhaoliang ZENG Zemin WANG Minghu DING Xiangdong ZHENG Xiaoyu SUN Wei ZHU Kongju ZHU Jiachun AN lin zang Jianping GUO Baojun ZHANG Chinese Antarctic Center of Surveying and Mapping Wuhan UniversityWuhan 430079China State Key Laboratory of Severe Weather Chinese Academy of Meteorological SciencesBeijing 100081China National Marine Environmental Forecasting Center Beijing 100081China Wuhan Economic&Technological Development Zone(Hannan)Meteorological Services Wuhan 430079China

Long-term,ground-based daily global solar radiation (DGSR) at Zhongshan Station in Antarctica can quantitatively reveal the basic characteristics of Earth’s surface radiation balance and validate satellite data for the Antarctic *** fixed station was established in 1989,and conventional radiation observations started much later in *** this study,a random forest (RF) model for estimating DGSR is developed using ground meteorological observation data,and a highprecision,long-term DGSR dataset is ***,the trend of DGSR from 1990 to 2019 at Zhongshan Station,Antarctica is *** RF model,which performs better than other models,shows a desirable performance of DGSR hindcast estimation with an R^2 of 0.984,root-mean-square error of 1.377 MJ m^(-2),and mean absolute error of 0.828 MJ m^(-2).The trend of DGSR annual anomalies increases during 1990–2004 and then begins to decrease after *** that the maximum value of annual anomalies occurs during approximately 2004/05 and is mainly related to the days with precipitation (especially those related to good weather during the polar day period) at this *** addition to clouds and water vapor,bad weather conditions (such as snowfall,which can result in low visibility and then decreased sunshine duration and solar radiation) are the other major factors affecting solar radiation at this *** high-precision,longterm estimated DGSR dataset enables further study and understanding of the role of Antarctica in global climate change and the interactions between snow,ice,and atmosphere.

关键词： meteorological variables RF model estimated historical DGSR long-term trend analysis

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Reaction behavior of MgO refractory with high-Mn and high-Al steel

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Journal of Iron and Steel Research International 2024年第6期31卷 1389-1398页

作者： ling-zhong Kong lin Zu Jie Yang Xi-min zang Xin Yang Ming Kang School of Materials and Metallurgy University of Science and Technology LiaoningAnshan 114051LiaoningChina

To understand the mechanism of the interfacial reaction between high-Mn and high-Al steel and MgO refractory,a series of laboratory experiments as well as thermodynamic calculations were *** effects of Mn and Al contents in the steel and the reaction time on the interfacial reaction were *** was observed that the erosion of the MgO refractory is caused by the reaction of Al and Mn in the steel with MgO in the refractory,which would lead to the formation of(Mn,Mg)O·Al_(2)O_(3) spinel and(Mn,Mg)O solid *** formation mechanism of the spinel and solid solution is as *** Al in the steel firstly reacts with MgO in the refractory to generate MgO·Al_(2)O_(3) spinel,and then,the spinel reacts with Mn in the steel to form(Mn,Mg)O·Al_(2)O_(3) ***,the MnO in the spinel reacts with the MgO in the inner refractory to form(Mn,Mg)O solid *** addition,only(Mn,Mg)O·Al_(2)O_(3) spinel is present in the interfacial reaction layer of the refractory when the Al content in the steel is sufficient.

关键词： High-Mn high-Al steel MgO refractory Reaction behavior Spinel

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Uncertainty quantification of inverse analysis for geomaterials using probabilistic programming

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Journal of Rock Mechanics and Geotechnical Engineering 2024年第3期16卷 895-908页

作者： Hongbo Zhao Shaojun Li Xiaoyu zang Xinyi Liu lin Zhang Jiaolong Ren School of Civil Engineering and Geomatics Shandong University of TechnologyZibo255000China State Key Laboratory of Geomechanics and Geotechnical Engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhan430071China

Uncertainty is an essentially challenging for safe construction and long-term stability of geotechnical *** inverse analysis is commonly utilized to determine the physico-mechanical ***,conventional inverse analysis cannot deal with uncertainty in geotechnical and geological *** this study,a framework was developed to evaluate and quantify uncertainty in inverse analysis based on the reduced-order model(ROM)and probabilistic *** ROM was utilized to capture the mechanical and deformation properties of surrounding rock mass in geomechanical *** programming was employed to evaluate uncertainty during construction in geotechnical engineering.A circular tunnel was then used to illustrate the proposed framework using analytical and numerical *** results show that the geomechanical parameters and associated uncertainty can be properly obtained and the proposed framework can capture the mechanical behaviors under ***,a slope case was employed to demonstrate the performance of the developed *** results prove that the proposed framework provides a scientific,feasible,and effective tool to characterize the properties and physical mechanism of geomaterials under uncertainty in geotechnical engineering problems.

关键词： Geological engineering Geotechnical engineering Inverse analysis Uncertainty quantification Probabilistic programming

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全球电动汽车能量管理专利情报与我国发展路线研究

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中国发明与专利 2024年第6期21卷 56-65页

作者：臧琳刘佳鑫翟诺沈悦王春蕾李彦奇中国第一汽车股份有限公司研发总院长春130013 东北师范大学信息科学与技术学院长春130117 东北师范大学国家知识产权信息服务中心长春130024 一汽奔腾汽车股份有限公司长春130012

本文采用专利大数据分析方法,深入探讨了全球电动汽车智能能量管理策略的研究现状,对比了国内外在该领域的研究差异,并分析了专利申请趋势、地域分布、技术主题等多维度信息。研究揭示了智能能量管理策略的技术热点和发展趋势,旨在为国... 详细信息

本文采用专利大数据分析方法,深入探讨了全球电动汽车智能能量管理策略的研究现状,对比了国内外在该领域的研究差异,并分析了专利申请趋势、地域分布、技术主题等多维度信息。研究揭示了智能能量管理策略的技术热点和发展趋势,旨在为国内智能能量管理技术的研发和企业提供有益的参考和指导。

关键词：电动汽车能量管理策略专利分析

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中性粒子分析仪的研究现状

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原子能科学技术 2024年第S02期58卷 501-511页

作者：林炜平马龙汪彦熹屈玉凡罗圆谢德豪王硕曲国峰任培培罗小兵刘星泉韩纪锋 Roy WADA 臧临阁朱敬军四川大学原子核科学技术研究所辐射物理及技术教育部重点实验室四川成都610064 核工业西南物理研究院四川成都610218 Texas A&M University Texas USA 77843

中性粒子分析仪(NPA)作为托卡马克(Tokamak)装置的重要诊断工具,在等离子体物理研究中具有重要科学意义和广泛应用前景。NPA通过精确测量从等离子体中逃逸的中性粒子,可获取等离子体内部的关键信息,包括离子温度、快离子能谱分布和氢同... 详细信息

中性粒子分析仪(NPA)作为托卡马克(Tokamak)装置的重要诊断工具,在等离子体物理研究中具有重要科学意义和广泛应用前景。NPA通过精确测量从等离子体中逃逸的中性粒子,可获取等离子体内部的关键信息,包括离子温度、快离子能谱分布和氢同位素比例等。自20世纪60年代首台NPA问世以来,经过60余年的技术发展,其诊断能力已经实现了质的飞跃,并且发展出了多种类型的NPA。针对中国环流3号(HL-3)装置的快离子物理研究,四川大学与核工业西南物理研究院联合研制了基于LYSO+SiPM探测器的串联式平行电磁场结构的NPA(E//B NPA)。该E//B NPA已安装到HL-3装置,并在等离子体放电实验中成功测量到高能量氘(D)中性粒子能谱,为今后HL-3装置中性粒子诊断及快离子研究奠定了坚实的技术基础。

关键词：中性粒子分析仪能量和质量分辨托卡马克快离子物理

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A simulation study of a windowless gas-stripping room in an E//B neutral particle analyzer

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Nuclear Science and Techniques 2021年第7期32卷 22-30页

作者： Yuan Luo Wei-Ping lin Pei-Pei Ren Guo-Feng Qu Jing-Jun Zhu Xing-Quan Liu Xiao-Bing Luo Zhu An Roy Wada lin-Ge zang Yu-Fan Qu Zhong-Bing Shi Key Laboratory of Radiation Physics and Technology of the Ministry of Education Institute of Nuclear Science and TechnologySichuan UniversityChengdu 610064China Cyclotron Institute Texas A&M UniversityCollege StationTX 77843USA School of Physics Henan Normal UniversityXinxiang 453007China Southwestern Institute of Physics Chengdu 610064China

The neutral particle analyzer(NPA)is one of the crucial diagnostic devices in a Tokamak *** stripping unit is one of the main parts of the NPA.A windowless gas-stripping room with two differential pipes has been constructed in a parallel electric and magnetic fields(E//B)*** pressure distributions in the stripping chamber are simulated by ANSYS Fluent together with MolFlow+.Based on the pressure distributions obtained from the simulation,the stripping efficiency of the E//B NPA is studied using *** reaction physics is modified to track the charge state of each particle in a cross-section-based method in *** transmission rates(R)and stripping efficiencies f_(+1)are examined for particle energies ranging from 20 to 200 keV with the input pressure(P_(0)),ranging from 20 to 400 *** to the combined global efficiency,R×f_(+1),P_(0)=240 Pa is obtained as the optimum pressure for the maximum global efficiency in the incident energy range investigated.

关键词： Neutral particle analyzer Windowless gas-stripping chamber Stripping efficiency Ansys Fluent MolFlow+ GEANT4

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Bifurcation of Equilibria in a Class of Planar Piecewise Smooth Systems with 3 Parameters

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Communications in Mathematical Research 2009年第3期25卷 204-212页

作者： zang lin CHEN XU-MEI GONG CHENG-CHUN Zou YONG-KUI Institute of Mathematics Jilin University Changchun 130012

The goal of this paper is to investigate the bifurcation properties of stationary points of a class of planar piecewise smooth systems with 3 parameters using the theory of differential inclusions. We especially study the existence of the stationary points on the line of discontinuity of this kind of planar piecewise smooth system.

关键词： piecewise smooth system line of discontinuity equilibria bifurcation

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The inhibitory effect of dihydroartemisinin on the growth of neuroblastoma cells

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Asian Pacific Journal of Tropical Biomedicine 2016年第4期6卷 279-282页

作者： ling Qi Yang Yang Yu-Cui Liu Tian-Xin Zhu Song Jin lin zang Yu-Ying Zhang Kuang Ren Department of Pathology Jilin Medical University Department of Pharmacology Jilin Medical University

Objective:To evaluate the inhibitory effect of dihydroartemisinin on neuroblastoma cell line SH-SY5 Y,explore the possible mechanism of dihydroartemisinin against neuroblastoma ***:The cell viability of dihydroartemisinin treated SH-SY5 Y cells was examined by MTT assay and morphology of cells was observed by using inverted *** cycle was examined with flowcytometry assay,then cyclin D1 and caspase-3 proteins expression was detected by ELISA and western blotting ***:MTT analysis results showed that cell viability significantly decreased after exposure to 0.05,0.50,5.00 and 50.00 mmol/L dihydroartemisinin in a dose-dependent manner,and the lower density of cells was observed in treated *** number of cells in sub-G1 phase was increased after treatment with different doses of dihydroartemisinin compared with the control *** expression of cyclin D1 protein was decreased,while the expression of caspase-3 protein was increased in treated ***:Dihydroartemisinin could inhibit the proliferation through stopping the cell cycle and inducing the apoptosis in neuroblastoma SH-SY5 Y cells.

关键词： Dihydroartemisinin Neuroblastoma cells Cyclin D1 Caspase-3

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