检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

安徽合肥滨湖新区租赁住房项目

建筑实践 2024年第3期 88-95页

作者： Anhui province Architectural Design and Research Institute Co., Ltd. 安徽省建筑设计研究总院股份有限公司

项目位于合肥市滨湖新区贵州路与遵义路交叉口,以自由寓、未来苑、天空城为设计主题,强调开放性、公共性,打造配套设施齐全、生活便利的生态住所;充分利用屋面空间,营造追寻自然、健康,及对美好生活向往的空中公园。为避免城市界面过于...

项目位于合肥市滨湖新区贵州路与遵义路交叉口,以自由寓、未来苑、天空城为设计主题,强调开放性、公共性,打造配套设施齐全、生活便利的生态住所;充分利用屋面空间,营造追寻自然、健康,及对美好生活向往的空中公园。为避免城市界面过于封闭呆板,采用两个体量相同、相互错动的居住组团,营造开放、活泼的城市界面;组团内住宅楼围合布置,形成安全、稳定的居住氛围;南北组团紧密联系,内外空间相互协调。配套设施位于两个组团底层,并顺应城市人流方向在西北角设置外街服务带,形成两环—带的布局模式,最大程度对外开放。利用北侧组团2层屋面打造空中跑道,满足健康生活的需求。

关键词：

Formation of complexes of Rubisco-Rubisco activase from La^3., Ce^3. treatment spinach

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Science china Chemistry 2005年第1期48卷 67-74页

作者： HONG Fashui1, LIU Chao1, ZHENG Lei1, WANG Xuefeng1, WU Kang1, SONG Weiping1, Lü Shipeng1, TAO Ye2 & ZHAO Guiwen3.1. College of Life Sciences, Suzhou Universty, Suzhou 215006, china 2. Synchrotron Radiation Laboratory, Institute of High Energy Physics, The Chinese Academy of Science, Beijing 10003., china 3. Chemical Department, University of Science and Technology of china, Hefei 23.026, china 1. College of Life Sciences Suzhou Universty 215006 Suzhou China 2. Synchrotron Radiation Laboratory Institute of High Energy Physics The Chinese Academy of Science 100039 Beijing China 3. Chemical Department University of Science and Technology of China 230026 Hefei China

The complex of Rubisco and Rubisco activase from LaCl3., CeCl3. treated spinach in vivo is induced. SDS-PAGE result shows that the purified proteins from LaCl3., CeCl3. treated spinach have not only large and small subunits (55 kD, 14.4 kD) of Rubisco, but also two large subunits of 45 kD and 41 kD near the large subunits of Rubisco. Native-PAGE shows that the purified proteins from LaCl3., CeCl3. treated spinach have not only a band of Rubisco (560 kD), but also a band of about 1100 kD, about twice distant from Rubisco, which might be a complex of Rubisco and Rubisco activase. The purified enzyme activities from LaCl3., CeCl3.treated spinach are 1.8 and 2.8 times that of the control,the intensities of absorption and fluorescence are sig- nificantly higher than that of the purified Rubisco from the control, and the total sulfhydryl groups and available sulfhydryl groups are 3.—3. –SH per mol enzyme, 14—25 –SH per mol enzyme more than those of the purified Rubisco from the control, respectively. The CD spectra show that the secondary structure of the purified enzyme from LaCl3., CeCl3.-treated spinach is very dif- ferent from the control. The enzyme activities from LaCl3., CeCl3. treated spinach in vivo are 1.5 and 1.9 times those of the control.

关键词： La3., Ce3., spinach, Rubisco, complex of Rubisco and Rubisco acitivase, spectral characteristics.

Preparation and Characterization of Nanocomposite MgFe_2O_4/SiO_2

在线全文

学校读者我要写书评

暂无评论

Journal of Wuhan University of Technology(Materials Science) 2009年第3期24卷 354-358页

作者：徐莉 College of Science Nanjing Forestry University

Nanocomposites MgFe2O4/SiO2 were successfully synthesized by the sol-gel method in the presence of N, N-dimethylformamide （DMF）. The formation of pure MgFe2O4 was confirmed by powder X-ray diffraction （XRD） and electron diffraction. The structural evolution of MgFe2O4 nanocrystals was followed by powder X-ray diffraction and IR absorption spectroscopy. The formation of spinel structure of MgFe2O4 started at 800 ℃, and completed at 900 ℃, The transmission electron microscopy （TEM） measurements suggest that the particle sizes increase with the increasing annealing temperature, and the mean particle sizes of the spherical samples annealed at 800 ℃, 900 ℃ and 1 050 ℃ are ca. 3.nm, 8 nm and 11 nm, respectively. Magnetization measurements at room temperature and 78 K indicate supemaramagnetic nature of these MgFe2O4 nanocrvstals.

关键词： nanocomposite sol-gel magnesium ferrite magnetic property

Sintering technology for micro heat pipe with sintered wick

在线全文

学校读者我要写书评

暂无评论

Journal of Central South University 2010年第1期17卷 102-109页

作者：李西兵汤勇李勇周述璋曾志新 Department of Mechanical and Power Engineering Harbin University of Science and Technology School of Mechanical Engineering Qiqihar University School of Mechanical and Automotive Engineering South China University of Technology

In order to study reasonable sintering technological parameters and appropriate copper powder size range of micro heat pipe (MHP) with the sintered wick, the forming principle of copper powders in wicks and MHP's heat transfer capabilities were first analyzed, then copper powders with different cell sizes and dispersions were sintered in RXL-12-11 resistance furnace under the protection of the hydrogen at different sintering temperatures for different durations of sintering time, and finally the sintered wicks' scanning electron microscope (SEM) images and their heat transfer capabilities were analyzed. The results indicate that the wick sintered with copper powders of larger cell size or smaller size range has better sintering properties and larger heat transfer capabilities; and that the increase of either sintering temperatures or sintering time also helps to improve the wick's sintering properties and heat transfer capabilities, and the former affects more obviously than the latter. Considering both its manufacturing cost and performance requirements, it is recommended that copper powders with the size range of 140-170 μm are sintered at 900-950℃ for 3.-60 min in practical manufacturing. In addition, two approaches to improve wick's porosity are also proposed through theoretical analysis, which suggests that the larger the wick's porosity, the better the heat transfer capabilities of the MHP.

关键词： micro heat pipe copper powders wick forming principle

On power allocation for a cognitive radio network with hybrid spectrum sharing

在线全文

学校读者我要写书评

暂无评论

Science china(Information Sciences) 2011年第11期54卷 2425-2434页

作者： ZHANG Jing 1,2,3.& ZHU HongBo 1 1 Key Laboratory of Wireless Communications of Jiangsu province,Nanjing University of Posts & Telecommunications,Nanjing 210003.{3. 2 College of Electronic Science & Engineering,Nanjing University of Posts & Telecommunications,Nanjing 210003.{3. 3.State Key Laboratory of Millimeter Waves,Nanjing 210096,{3. 1. Key Laboratory of Wireless Communications of Jiangsu province Nanjing University of Posts & Telecommunications Nanjing 210003 China2. College of Electronic Science & Engineering Nanjing University of Posts & Telecommunications Nanjing 210003 China3. State Key Laboratory of Millimeter Waves Nanjing 210096 China

In this study we propose a hybrid spectrum sharing scheme based on power control by combining Overlay with Underlay schemes,to improve radio spectrum *** the scheme,the secondary users dynamically switch their operational states between Overlay and Underlay according to the spectrum *** the dynamics of the primary network is first modeled with a discrete-state Markov process to find the time fraction of secondary users in the Overlay state and that in the Underlay state,which leads to the capacity model of the hybrid spectrum sharing *** the criterion of maximizing capacity,the power allocation of the cognitive network is researched and the optimum power allocation for secondary users is *** a result,the maximum achievable capacity of the cognitive network is *** are given to prove the analysis *** and simulated results indicate that hybrid spectrum sharing based on power control provides a higher capacity than single Overlay and Underlay systems for the cognitive network,i.e.,hybrid spectrum sharing can further improve radio spectrum efficiency.

关键词： cognitive radio network hybrid spectrum sharing primary network dynamics power allocation achievable capacity

关于完善灵活就业人员基本医疗保险待遇有关政策的通知(鲁医保发〔2024〕9号)

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

山东省人民政府公报 2024年第9期 42-43页

作者： 1.山东省医疗保障局 2.山东省财政厅 3.山东省人力资源和社会保障厅山东省医疗保障局山东省财政厅山东省人力资源和社会保障厅

SDPR-2024-043.002各市医疗保障局、财政局、人力资源和社会保障局:为进一步规范新就业形态劳动者和灵活就业人员(以下简称灵活就业人员)医疗保障工作,增强职工基本医疗保险(以下简称职工医保)制度公平性和可及性,根据《山东省人民政府... 详细信息

SDPR-2024-043.002各市医疗保障局、财政局、人力资源和社会保障局:为进一步规范新就业形态劳动者和灵活就业人员(以下简称灵活就业人员)医疗保障工作,增强职工基本医疗保险(以下简称职工医保)制度公平性和可及性,根据《山东省人民政府关于印发山东省职工基本医疗保险省级统筹实施意见的通知》(鲁政字〔2023.184号).

关键词：灵活就业人员省级统筹医疗保险待遇职工医保职工基本医疗保险山东省人民政府人力资源和社会保障局可及性

Simulation study of phase retrieval for hard X-ray in-line phase contrast imaging

在线全文

学校读者我要写书评

暂无评论

Science china(Physics,Mechanics & Astronomy) 2005年第4期48卷 450-458页

作者： YU Bin1,2, PENG Xiang1,2, TIAN Jindong1, NIU Hanben1, DIAO Luhong3.& LI Hua3.1. Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education, Institute of Optoelec- tronics, Shenzhen University, Shenzhen 518060, china 2. State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 3.0072,china 3. Key Laboratory of Intelligent Information Processing, Institute of Computing Technology, Chinese Academy of Sciences, Beijing 100080,china 1. Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education Institute of Optoelectronics Shenzhen University 518060 Shenzhen China 2. State Key Laboratory of Precision Measuring Technology and Instruments Tianjin University 300072 Tianjin China 3. Key Laboratory of Intelligent Information Processing Institute of Computing Technology Chinese Academy of Sciences 100080 Beijing China

Two algorithms for the phase retrieval of hard X-ray in-line phase contrast imaging are presented. One is referred to as Iterative Angular Spectrum Algorithm (IASA) and the other is a hybrid algorithm that combines IASA with TIE (transport of intensity equation). The calculations of the algorithms are based on free space propagation of the angular spectrum. The new approaches are demonstrated with numerical simulations. Comparisons with other phase retrieval algorithms are also performed. It is shown that the phase retrieval method combining the IASA and TIE is a promising technique for the application of hard X-ray phase contrast imaging.

关键词： X-ray optics, phase contrast imaging, phase retrieval, angular spectrum, hard X-ray.

Forecast Method of Multimode System for Debris Flow Risk Assessment in Qingping Town,Sichuan province,china

在线全文

学校读者我要写书评

暂无评论

Journal of Mountain Science 2011年第4期8卷 592-602页

作者： KONG Jiming Key Laboratory of Mountain Hazards and Earth Surface Processes Chinese Academy of Sciences Institute of Mountain Hazards and Environment Chinese Academy of Sciences

The Wenchuan Earthquake of May 12,2008 triggered large numbers of *** heavy rain on 13.August 2010 triggered debris flows with total volume of more than 6 million cubic meters and the debris flows destroyed 500 houses and infrastructure built after the Wenchuan *** study area Qingping Town was located in the northwestern part of the Sichuan Basin of china,which needs the second reconstructions and the critical evaluation of debris *** study takes basin as the study unit and defines collapse,landslide and debris flow hazard as a geo-hazard system.A multimode system composed of principal series system and secondary parallel system were established to evaluate the hazard grade of debris flow in 13. drainage basins of Qingping *** evaluation result shows that 3..43. of study basins(42 basins) and 24.58% of study area,are in extremely high or high hazard grades,and both percentage of basin quantity and percentage of area in different hazard grades decrease with the increase of hazard *** to the geo-hazard data from the interpretation of unmanned plane image with a 0.5-m resolution and field investigation after the Wenchuan Earthquake and 8.13.Big Debris Flow,the ratio of landslides and collapses increased after the Wenchuan Earthquake and the ratios of extremely high or high hazard grades were more than moderate or low hazard grades obviously.23.geo-hazards after8.13.Big Debris Flow in Qingping town region all occurred in basins with extremely high or high hazard grades,and 9 debris flows were in basins with extremely high hazard *** model of multimode system for critical evaluation could forecast not only the collapse and landslide but also the debris flow precisely when the basin was taken as the study unit.

关键词： Multimode System Risk assessment Debris flow Landslide Wenchuan Earthquake Qingping Town

Effects of melatonin on learning abilities, cholinergic fibers and nitric oxide synthase expression in rat cerebral cortex

在线全文

学校读者我要写书评

暂无评论

Neural Regeneration Research 2006年第8期1卷 677-680页

作者： Bin Xu1, Junpao Chen2, Hailing Zhao3.1Department of Neurology, the 187 Hospital of Chinese PLA, Haikou 571159, Hainan province, china 2Department of Neurology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, Guangdong province, china 3.utpatient Department, Haikou Hospital of Traditional Chinese Medicine, Haikou 570003. Hainan province, china Department of Neurology The 187 Hospital of Chinese PLA Haikou 571159 Hainan Province China Department of Neurology Zhujiang Hospital Southern Medical University Guangzhou 510282 Guandong Province China Outpatient Department Haikou Hospital of Tradiational Chinese Medicine Haikou 570003 Hainan Province China

BACKGROUND: Melatonin is a kind of hormones derived from pineal gland. Recent researches demonstrate that melatonin is characterized by anti-oxidation, anti-senility and destroying free radicals. While, effect and pathogenesis of pineal gland on learning ability should be further studied. OBJECTIVE: To investigate the effects of pinealectomy on learning abiliy, distribution of cholinesterase and expression of neuronal nitric oxide synthase (nNOS) in cerebral cortex of rats and probe into the effect of melatonin on learning ability, central cholinergic system and nNOS expression. DESIGN: Randomized grouping design and animal study. SETTING: Department of Neurology, the 187 Hospital of Chinese PLA. MATERIALS: A total of 12 male SD rats, of normal learning ability testing with Y-tape maze, of clean grade, weighing 190-210 g, aged 6 weeks, were selected in this study. METHODS: The experiment was carried out in the Department of Neurology, Zhujiang Hospital from July 1997 to June 2000. All SD rats were divided into experimental group (n =6, pinealectomy) and control group (n =6, sham operation). Seven days later, rats in both two groups were continuously fed for 3. days. ① Learning ability test: The learning ability of rats was tested by trisection Y-type maze and figured as attempting times. ② Expression of acetylcholinesterase (AchE) was detected by enzyme histochemistry and nNOS was measured by SABC method. ③ Quantitative analysis of AchE fibers: AchE fibers density in unit area (surface density) was surveyed with Leica Diaplan microscope and Leica Quantimet 500+ image analytic apparatus and quantitative parameter was set up for AchE fibers covering density (μm2) per 3.4 693.656 μm2, moreover, the AchE fibers density was measured in Ⅱ-Ⅳ layers of motor and somatosensory cortex (showing three layers per field of vision at one time), in radiative, lacunaria and molecular layers of CA1, CA2 and CA3.areas, and in lamina multiforms of dentate gyrus. Three tissue slices wer

关键词： Effects of melatonin on learning abilities cholinergic fibers and nitric oxide synthase expression in rat cerebral cortex nNOS