检索结果-南通市图书馆

Carbon liberated from CO-releasing molecules attenuates leukocyte infiltration in the small intestine of thermally injured mice

引用

World Journal of Gastroenterology 2007年第46期13卷 6183-6190页

作者： Bing-Wei Sun Qin Jin Yan Sun Zhi-Wei Sun Xi chen zhao-yong chen Gediminas Cepinskas Department of Bums and Plastic Surgery AffiliatedHospital Jiangsu University Zhenjiang 212001 Jiangsu ProvinceChina Centre for Critical Illness Research Lawson HealthResearcia Institute 800 Commissioners Rd. E.London Ontario N6A 4G4 Canada

AIM： To determine whether Carbon （CO） liberated from CO-releasing molecules attenuates leukocyte infiltration in the small intestine of thermally injured mice. METHODS： Thirty-six mice were assigned to four groups. Mice in the sham group （n = 9） were underwent to sham thermal injury; mice in the burn group （n = 9） received 15% total body surface area full-thickness thermal injury; mice in the burn ＋ CORM-2 group （n = 9） were underwent to the same thermal injury with immediate administration of tricarbonyldichlororut henium （11） dimer CORM-2 （8 mg/kg, i.v.）; and mice in the burn＋DMSO group （n = 9） were underwent to the same thermal injury with immediate administration of 160 IJL bolus injection of 0.5% DMSO/saline. Histological alterations and granulocyte infiltration of the small intestine were assessed. Polymorphonuclear neutrophil （PMN） accumulation （myeloperoxidase assay） was assessed in mice mid-ileum. Activation of nuclear factor （NF）-KB, expression levels of intercellular adhesion molecule-1 （ICAM-1） and inducible heme oxygenase in mid-ileum were assessed. RESULTS： Treatment of thermally injured mice with CORM-2 attenuated PMN accumulation and prevented activation of NF-kB in the small intestine. This was accompanied by a decrease in the expression of ICAM-1. In parallel, burn-induced granulocyte infiltration in mid- ileum was markedly decreased in the burn mice treated with CORM-2. CONCLUSION： CORM-released CO attenuates leukocyteinfiltration in the small intestine of thermally injured mice by interfering with NF-KB activation and protein expression of ICAM-1, and therefore suppressing the pro-adhesive phenotype of endothelial cells.

关键词： Leukocyte infiltration Carbon monoxide Thermal injury Small intestine

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

SIGMA-COORDINATE NUMERICAL MODEL FOR SIDE-DISCHARGE INTO NATURAL RIVERS

引用

Journal of Hydrodynamics 2009年第3期21卷 333-340页

作者： LIU zhao-wei chen yong-can LI Ling ZHENG Jing-yun State Key Laboratory of Hydroscience and Engineering Tsinghua University Beijing 100084 China Wenzhou Oujiangkou Development and Construction Headquarters Wenzhou 325027 China

Due to large topography slopes in natural rivers, pollutant concentration embodies a property of three-dimensional distribution when wastewater is discharged from effluents along the bank. With the sigma coordinate along the vertical dimension fitted to both the moving free surface and the bed topography, a three-dimensional numerical model was developed in the present work to address pollutant transport processes in the above-mentioned cases. To avoid the reduction in accuracy caused by spurious diffusion in the case of steep bottom slopes, a formula for horizontal diffusion in the sigma coordinate system was derived. A case study for the side discharge into a straight open-channel flow shows that numerical results are verified well by experimental data. Furthermore, the present model is also verified by the simulation of discharging wastewater from Fuling Phosphorus Factory effluent into the Three Gorges Reservoir and the agreement between the numerical simulation results and field observation data is satisfactory. The change of the mixing zone scope in the water surface versus the layers along the vertical dimension was also discussed in detail. The study shows that a more realistic calculation for pollutant discharge has been provided by the present model than by the depth-average model which predicts an unrealistically smaller mixing zone.

关键词： sigma-coordinate three-dimensional model side-discharge natural rivers

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A distributed spatial computing prototype system in grid environment

引用

Science China(Technological Sciences) 2010年第S1期53卷 25-32页

作者： WU Lun,YAN MengLong,GAO yong,YANG ZhenZhen,zhao yong & chen Bin Institute of Remote Sensing and Geographic Information System,Peking University,Beijing 100871,China Institute of Remote Sensing and Geographic Information System Peking University Beijing China

Digital Earth has been a hot topic and research trend since it was proposed,and Digital China has drawn much attention in *** a key technique to implement Digital China,grid is an excellent and promising concept to construct a dynamic,inter-domain and distributed computing *** is appropriate to process geographic information across dispersed computing resources in networks effectively and cooperatively.A distributed spatial computing prototype system is designed and implemented with the Globus *** important aspects are discussed in *** architecture is proposed according to the characteristics of grid firstly,and then the spatial resource query and access interfaces are designed for heterogeneous data *** open-up hierarchical architecture for resource discovery and management is represented to detect spatial and computing resources in grid.A standard spatial job management mechanism is implemented by grid service for convenient *** addition,the control mechanism of spatial datasets access is developed based on *** prototype system utilizes the Globus Toolkit to implement a common distributed spatial computing framework,and it reveals the spatial computing ability of grid to support Digital China.

关键词： distributed geographic information processing grid computing Digital China GIS

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Electrochemical Properties of Spinel LiMn_2O_(4-δ)F_δ for Cathode Materials of Secondary Lithium-ion Battery

引用

Chinese Chemical Letters 2000年第5期11卷 455-458页

作者： zhao yong chen Xing Quan LIU Zuo Long YU (chengdu Institute of Organic Chemistry, The Chinese Academy of Sciences, chendy 610041) chengdu Inst. of Organic Chemistry Chinese Academy of Sciences Chendu 610041 China

The spinel LiMn_2O_(4-δ)Fδ cathode materials were synthesized by solid-state reaction, With calculated amounts of LiOH·H_2O, MnO_2(EMD). LiF. The results of electrochemical test demonstrated that these new materials exhibited excellent electrochemical *** initial capacity reached -115 mAb·g^(-1) and reversible efficiency is about 100%. After 60 cycles. its capacity was still around 110 mAh· g^(-1), with nearly 100% reversible efficiency,

关键词： Spinel LiMn_2O_(4-δ)Fδ cathode materials.

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Efficient Task Scheduling for Many Task Computing with Resource Attribute Selection

引用

China Communications 2014年第12期11卷 125-140页

作者： zhao yong chen Liang LI Youfu TIAN Wenhong University of Electronic Science and Technology of China Chengdu 611731 Sichuan Province P. R. China

Many Task Computing(MTC)is a new class of computing paradigm in which the aggregate number of tasks,quantity of computing,and volumes of data may be extremely *** the advent of Cloud computing and big data era,scheduling and executing large-scale computing tasks efficiently and allocating resources to tasks reasonably are becoming a quite challenging *** improve both task execution and resource utilization efficiency,we present a task scheduling algorithm with resource attribute selection,which can select the optimal node to execute a task according to its resource requirements and the fitness between the resource node and the *** results show that there is significant improvement in execution throughput and resource utilization compared with the other three algorithms and four scheduling *** the scheduling algorithm comparison,the throughput is 77%higher than Min-Min algorithm and the resource utilization can reach 91%.In the scheduling framework comparison,the throughput(with work-stealing)is at least 30%higher than the other frameworks and the resource utilization reaches 94%.The scheduling algorithm can make a good model for practical MTC applications.

关键词： task scheduling resource attribute selection many task computing resource utilization work-stealing

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Effect of tetramethylpyrazine on the spatial learning and memory function of rats after focal cerebral ischemia

引用

Neural Regeneration Research 2006年第2期1卷 161-165页

作者： Jianjun zhao yong Liu Xinlin chen Jianxin Liu Yingfang Tian Pengbo Zhang Qianyan Kang Fen Qiu Department of Human Anatomyand Histological Embryology School of Medicine Xi＇an Jiaotong University Xi＇an 710061Shaanxi Province. China

BACKGROUND： Tetramethylpyrazine （TMP） presents the effect of anti-platelet aggregation, reduces arteria resistance, increases cerebral blood flow, and improves microcirculation. OBJECTIVE： To observe the effects of TMP on the learning and memory abilities and the number of neurons in cortex and hippocampus after focal cerebral ischemia in rats DESIGN： A randomized controlled tria SETTING： Department of Human Anatomy and Histological Embryology, School of Medicine, Xi＇an Jiaotong University. MATERIALS： Fifty adult male Sprague-Dawley rats, weighing 250-300 g were supplied by the Experimental Animal Center, School of Medicine, Xi＇an Jiaotong University. TMP was purchased from Wuxi Seventh Pharmaceutical *** （Lot Number： 2004051106, Specification： 2 mL/piece）. METHODS ： The experiments were carried out in School of Medicine of Xi＇an Jiaotong University from June 2004 to May 2005. The 50 rats were randomly divided into five groups according to the random number table method： sham-operated group, cerebral ischemia control group, low-dose TMP group, middle-dose TMP group and high-dose TMP group, 10 rats in each group. Rats in the TMP groups were immediately treated with intraperitoneal injection of TMP of 40, 80 and 120 mg/kg respectively, and those in the sham-operated group and cerebral ischemia control group were injected intraperitoneally by isovolume saline, once a day for 14 days successively. On the 15^th day, the spatial learning and memory abilities of the rats were assessed with the Morris water maze test, and then the changes of neuron numbers in cortex and hippocampus were observed by Nissl staining of brain sections. MAIN OUTCOME MEASURES ： The results of Morris water maze test and the changes of neuron numbers in cortex and hippocampus by Nissl staining of brain sections were observed. RESULTS： Finally 39 rats were involved in the analysis of results, and the other 11 died of excessive anesthesia or failure in model establishment. ① The rats

关键词： Effect of tetramethylpyrazine on the spatial learning and memory function of rats after focal cerebral ischemia TM high show

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Dative B–N bonds weaven toward two-dimensional purely organic materials for single crystals

引用

Science China Chemistry 2025年第1期68卷 12-14页

作者： Wei-Lei Zhou Siwei Wang yong chen College of Chemistry and Materials Science Inner Mongolia Key Laboratory of Chemistry for Nature Products and Synthesis for Functional Molecules Innovation Team of Optical Functional Molecular Devices Inner Mongolia Minzu University College of Chemistry Nankai University

Molecular topology is one of the important topics to study and understand the relationship between molecular structure and properties [1]. Particularly, two-dimensional (2D) materials with extremely high surface area and ultra-thin morphology have attracted considerable attention due to their unexpected properties in materials and chemistry [2,3].

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

EFFECTS OF VASCULAR ZERO STRESS STATE ON PULSATILE BLOOD FOLW

引用

Journal of Hydrodynamics 2001年第2期13卷 40-49页

作者： Liu zhao rong,chen yong,Yan Yu bing,Xu Gang Biomechanics Laboratory,Fudan University,Shanghai 200433,China

In this paper,blood flow in artery was treated as the flow under equilibrium state (the steady flow under mean pressure) combined with the periodically small sulsatile *** on vascular zero stress state ,the pulsatile strains according to the radial and axial displacements of blood vessel were *** the use of Hooke's law,the pulsatile strains and the corresponding Cauchy stresses were connected,so the corresponding wall motion equations could be established *** solving the linearized Navier Stokes equations,the analytic expressions of the blood flow velocities and the vascular displacements could be obtained,and the in fluence of the circumferential and axial stretch ratio on pulsatile blood flow and vascular motion was discussed in details.

关键词： pulse wave pulsatile blood flow,vessel wall,zero stress state

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Review on Thermal Characteristics of Compound Outdoor Wall of Wood Framed Construction

引用

Chinese Forestry Science and Technology 2006年第3期5卷 1-5页

作者： FEI Benhua zhao yong REN Haiqing chen Enling Research Institute of Wood Industry Chinese Academy of Forestry Beijing 100091 P.R. China

As one of the most important components of a construction, the outdoor wall plays a significant role in heat insulation, heat preservation and energy saving. Improving the heat insulation of the outdoor wall is the focus of researchers. This paper reviews the development of the compound outdoor wall and introduces the structure of the compound outdoor wall of wood framed construction. Methods for measuring the thermal characteristics of the compound outdoor wall including the steady and unsteady state thermal characteristics, tests in laboratory and field, and researches on the thermal characteristics of the compound outdoor wall are elaborately reviewed. Researches on the thermal characteristics of the compound outdoor wall will promote the further development of wood framed construction in China.

关键词： thermal characteristics compound outdoor wall wood framed construction

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Therapeutic effect of Zijin capsule in liver fibrosis in rats

引用

World Journal of Gastroenterology 1998年第3期4卷 80-83页

作者： CAI Da yong, zhao Gang, chen Jia Chun, YE Gan Mei, BING Fei Hong and FAN Bu Wu

AIM To confirm the therapeutic effect of Zijin capsule on liver fibrosis in rat model. METHODS Model group: bovine serum albumin (BSA) Freund′s incomplete adjuvant 0 5ml was injected subdermally at d 1, d 15 , d 22 , d 29 and d 36 for primary sensitization. Seven days after the fifth injection, BSA antibody in the serum was detected by double agar diffusion method. Normal saline of 0 4ml was injected through cauda vein to BSA antibody positive rat twice a week for fifteen times. Traditional Chinese medicine (TCM) decoction group and Zijin capsule group: In the attack injection period, Chinese medicinal decoction or Zijin capsule was given ig, the others were the same as in the model group. NS was used in the control group. The collagen content of rat liver was determined by Bergman′s method and expressed as ±s . The liver pathological changes were divided into four grades and expressed as the avarage of the total rank sum. RESULTS The collagen content (mg/g) of the liver in the control group (7 2±1 9) was significantly lower than that in the other groups; it was higher in the model group (31 7±16 6) than that in the two therapeutic groups; and lower in Zijin capsule group (9 7±2 8) than that in the TCM decoction group (11 5±5 3). The pathological changes were more aggravated in the model group (37 4) than those in the two therapeutic groups; and more severe in the TCM decoction group (30.2) than in the Zijin capsule group (22.9) CONCLUSION The therapeutic effect of Zijin capsule on the model was confirmed.

关键词： liver cirrhosis/therapy Zijin capsule integrated TCM WM diseases models, animal rats

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：