检索结果-南通市图书馆

Differentiation of Bone Marrow Mesenchymal Stem Cells into Retinal Ganglion-like Cells Induced by Math5

Chemical Research in Chinese Universities 2012年第6期28卷 1041-1046页

作者： WANG Hai-yan ke Bi-lian SU Guan-fang XU Xun Department of Ophthalmology Shanghai First People's Hospital Affiliate of Shanghai Jiaotong University Shanghai 200080 P. R. China Department of Ophthalmology The Second Hospital of Jilin University Changehun 130041 P. R. China

We explored the appropriate inducing conditions needed to facilitate the differentiation of bone marrow mesenchymal stem cells（BMSCs） into retinal ganglion cells（RGCs）.Math5,a pro-neural basic helixloop-helix（bHLH） gene,was constructed in an adenoviral vector and then infected into the 3rd passage *** inverted fluorescence microscope was used to observe the morphological changes of the infected *** expressions of Math5,the neuromarkers neuron-specific enolase（NSE）,neurofilament（NF）,Thy1.1,and the RGC-related genes GAP-43 and Brn3b were examined by Western blot and reverse transcription-polymerase chain reaction（RT-PCR）.The results show that cells infected with Math5 adenoviral vector were able to stably express Math5 and presented with a typical morphology of ***,these cells expressed NSE,NF,Thy1.1,and *** the synergistic induction conditions of retinal conditioned differentiation medium in combination with epidermal growth factor（EGF） and basic fibroblast growth factor（BFGF）,BMSCs infected with Math5 adenoviral vector had a more typical morphology of RGCs,with a greater number of longer axons that connected with each other and formed a *** addition,the number of NF positive cells was higher,the expression of Brn3b was detected,and the expressions of NSE,NF,and GAP-43 were significantly up-regulated compared to those of them in the *** results indicate that BMSCs infected with Math5 are able to differentiate into retinal ganglion-like ***,Math5 is a stronger activator of the downstream gene Brn3b than the cytokine,which suggests that it is possible to regulate the survival and axon path determination of these differentiated cells.

关键词： Bone marrow mesenchymal stem cells Math5 Brn3b Retinal ganglion cell

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

Hydrogen Pick-Up During Electroslag Remelting Process

引用

Journal of Iron and Steel Research International 2011年第4期18卷 19-23页

作者： JIANG Zhou-hua DONG Yan-wu lianG lian-ke LI Zheng-bang School of Materials and Metallurgy Northeastern University Shenyang 110004 Liaoning China Central Iron and Steel Research Institute Beijing 100081 China

The pick-up of hydrogen during electroslag remelting process for several slags consisting of CaF2-Al2O3-CaO-SiO2-MgO had been *** laboratory-scale remelting experiments had been carried out in open air and water-free argon atmosphere,and then the influencing factors were *** had been found that the hydrogen content in steel varied with different slag *** compositions and state of slag had significant effect on the hydrogen level in *** return slag and premelted slag could avoid the hydrogen pick-up especially in the early stages of the ***,premelted slag was the optimum state to control the hydrogen pick-up in *** results indicated that water-free argon atmosphere was very favorable to the control of hydrogen in steel in the normal remelting period.

关键词： electroslag remelting hydrogen calcium fluoride premelted slag protective atrriosphere

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

Health care data analysis and visualization using interactive data exploration for sportsperson

引用

Science China(Information Sciences) 2022年第6期65卷 85-97页

作者： Hao LIU Yang ZHANG ke lian Yifei ZHANG Oscar Sanjuán MARTíNEZ Rubén González CRESPO Department of Sport and Exercise Sciences Kunsan National University Department of Naval Architecture and Ocean Engineering Ludong University Computer Science Department School of Engineering and Technology Universidad Internacional de La Rioja

Sports have scored significant attention among the public in this multifaceted world. Diverse training strategies are followed by many athletics and even flexible to adapt comfortable and optimal techniques. This fact has led physicians and educators to encourage remote health surveillance as one of the core strategies in athletic training. The need for innovative data exploration methodologies capable of facing Big Data’s influence to make remote monitoring services viable has been raised by the growing ties of networks that deliver high quantities of real-time data. This paper presents an interactive healthcare data exploration and visualization(IHDEV) model to enhance multi-scaling data analysis and visualization in the athletic health vision platform. This paper aims to simplify optimization methods to measure sportsperson muscle tension. This model illustrates a three-layer architecture with a raw data acquisition layer, data analysis layer, and visualization layer. The first layer considers the acquisition of health-related data from the athletes for remote monitoring using IoT and stores it into the cloud. The data analysis layer adapts artificial intelligence(AI) in data mining. The final layer introduces an intelligent interactive data visualization model assisted by a reactive workflow mechanism, enabling analysis and visualization solutions to be composed in a personalized data flow appropriate to the athletic training. This experimental study extended with two healthcare datasets to show the feasibility of IHDEV in promoting healthcare based athletic monitoring and improves the accuracy ratio of 96.7%, prediction ratio of 96.2%, an efficiency ratio of 96.8%, Pearson correlation coefficient of 98.2%, and reduces the error rate of 18.7% compared to other conventional models.

关键词： artificial intelligence health monitoring data visualization data analysis athletics

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

Energy Levels of Valence Subbands in Si/Si_(1-x)Ge_(x )Quantum Well byAdmittance Spectroscopy

引用

Chinese Physics Letters 2000年第4期17卷 288-290页

作者： LIN Feng GONG Da-Wei ke lian ZHANG Sheng-kun SHENG Chi Surface Physics Laboratory Fudan UniversityShanghai 200433

Using the admittance spectroscopy technique,energy levels of subbands in SiGe/Si quantum well are *** value of activation energy increases with increasing well width,in accordance with the quantum confinement *** conductance peaks due to hole emission from heavy hole ground state and light hole ground state were *** was found that the value of activation energy increased with annealing time at the temperature of 800℃,while the activation energy decreases with the annealing time at 900℃.

关键词： effect. activation quantum

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

Accuracy of left ventricular function from electrocardiographygated myocardial perfusion SPECT by MyoMetrix in Chinese

引用

Nuclear Science and Techniques 2017年第1期28卷 36-41页

作者： Yang-Chun Chen Ruo-Zhu Dai ke-lian Zhang Yong-Da Dong Hui-Lin Zhuo Qing-Mu Wang Department of Nuclear Medicine Quanzhou No.1 Hospital Affiliated to Fujian Medical University Quanzhou 362000China Department of Cardiology Quanzhou No.1 Hospital Affiliated to Fujian Medical University Quanzhou 362000China Department of Ultrasound Quanzhou No.1 Hospital Affiliated to Fujian Medical University Quanzhou 362000China

This work was to determine threshold values for accurate measurements of left ventricular end-diastolic volume(EDV),end-systolic volume(ESV),and ejection fraction(EF) from electrocardiography-gated myocardial perfusion imaging(MPI) in Chinese,and these data were compared with those of echocardiography.A total of 110 patients with definite or suspected coronary artery disease were referred for both gated MPI and echocardiography within 1 *** EDV,ESV,and EF automatically measured by MyoMetrix and echocardiography were analyzed using Bland-Altman plot correlation and paired t *** results showed that these parameters quantified by MyoMetrix software were correlated,moderately to highly,with those on echocardiography(ρ,r ≥0.75,P<0.01).However,the EF was not significantly correlated,with post-exercise MPI ESV of <15 mL or resting MPI ESV of <20 *** or above this ESV value,EF was underestimated by MyoMetrix(t≥ 4.60,P<0.01).In a word,a small ESV was underestimated by MyoMetrix,which could lead to EF *** the contrary,a normal or large ESV was overestimated by MyoMetrix,which led to EF underestimation.

关键词： Myocardial perfusion imaging Left ventricular function Software

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

Hierarchical Switching Control of Multiple Models Based on Robust Control Theory

引用

自动化学报 2006年第3期32卷 411-416页

作者： GAO FENG LI ke-Qiang lian Xiao-Min State key Laboratory of Automotive Safety and Energy Tsinghua University Beijing 100084

A new hierarchical switching control system of multiple models based on robust control theory is designed for some plant with large uncertainties. The model set and controller set are designed by robust control theory and the characteristics of robust control system are taken into account. A new kind of switching index function by estimating uncertainty is designed. Furthermore, stability of the closed system is analyzed by the small gain theorem in the sense of exponentially weighted L2 norm. And simulation is done on a plant with both parameter uncertainty and un-modeled dynamics. Both theoretical analysis and simulation results show that this new hierarchical switching control system can control the plant with large uncertainties effectively and has good performance of tracking and stability.

关键词：多模式控制开关控制自动化系统鲁棒控制

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

Stable High-Energy Density Super-Atom Clusters of Aluminum Hydride

引用

Chinese Journal of Chemical Physics 2012年第2期25卷 147-152,I0003页

作者： ke-yan lian Yuan-fei Jiang De-hou Fei Wei Feng Ming-xing Jin Da-jun Ding Yi Luo Institute of Atomic and Molecular Physics Jilin UniversityChangchun 130012China Department of Theoretical Chemistry Royal Institute of TechnologyAlbaNovaS-106-91 StockholmSweden Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Tech-nology of ChinaHefei 230025China

With the concept of super-atom, first principles calculations propose a new type of super stable cage clusters AlnH3n that are much more energetic stable than the well established clusters, AlnHn＋2. In the new clusters, the aluminum core-frame acts as a super-atom with n vertexes and 2n A1-A1 edges, which allow to adsorb n hydrogen atoms at the top-site and 2n at the bridge-site. Using Al12H36 as the basic unit, stable chain structures, （Al12H36）m, have been constructed following the same connection mechanism as for （A1H3）n linear polymeric structures. Apart from high hydrogen percentage per molecule, calculations have shown that these new clusters possess large heat of formation values and their combustion heat is about 4.8 times of the methane, making them a promising high energy density material.

关键词： High-energy density Super-atom First principles Cluster of aluminum hydride

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

α-Fe_(2)O_(3)/Cu_(2)O composites as catalysts for photoelectrocatalytic degradation of benzotriazoles

引用

Water Science and Engineering 2022年第3期15卷 200-209页

作者： Jian-hong Han Wen-hui Jia Yi Liu Wei-da Wang lian-ke Zhang Yu-mei Li Peng Sun Jian Fan Shu-ting Hu College of Energy and Environment Inner Mongolia University of Science and TechnologyBaotou 014000China Tianjin key Laboratory of Green Chemical Engineering Process Engineering Tiangong UniversityTianjin 300000China Zhonghao Kaizer Project Management Co.Ltd. Baotou 014000China

Given the difficulties of degrading benzotriazole(BTA),this study used a one-pot hydrothermal method to prepareα-Fe_(2)O_(3)/Cu_(2)O(FC)composites for photoelectrocatalytic(PEC)degradation of *** characterization of FC structure showed that Cu_(2)O in cubic crystals was loaded with circular sheets of Fe_(2)O_(3).Owing to this structure,FC showed efficient PEC degradation of BTA when exposed to ultraviolet *** experimental results demonstrated that FC efficiently degraded *** the PEC degradation continued for 60 min,100%degradation of BTA was achieved because FC enhanced the photoelectron-hole separation and the separation and transfer of articulated *** per-formance liquid chromatography-mass spectrometry showed that intermediates formed during the PEC degradation of ***,various pathways for degradation of BTA were *** FC-based PEC system provides a harmless and effective method for degradation of BTA.

关键词： Photoelectrocatalytic degradation Fe_(2)O_(3) Cu_(2)O Catalyst Benzotriazole

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

粉末法合成人造金刚石技术的研究与应用

引用

人工晶体学报 2008年第1期37卷 109-113页

作者：周连科中材高新材料股份有限公司北京100018

目前,工业人造金刚石的合成是在高温高压条件下通过触媒作用将碳元素的排序由石墨结构转变成金刚石结构。传统的片状合成技术成本高,转化率低,已逐步被先进的粉末合成技术取代。粉末合成技术解决了原材料的研制、粉末柱的制备、合成结... 详细信息

目前,工业人造金刚石的合成是在高温高压条件下通过触媒作用将碳元素的排序由石墨结构转变成金刚石结构。传统的片状合成技术成本高,转化率低,已逐步被先进的粉末合成技术取代。粉末合成技术解决了原材料的研制、粉末柱的制备、合成结构及合成工艺的确定等关键技术问题。随着粉末合成技术的推广应用,我国人造金刚石得到快速发展,生产成本大幅降低,金刚石产量及质量大幅提高。

关键词：人造金刚石触媒合金粉石墨粉粉末柱真空处理

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

Postoperative adverse cardiac events in acute myocardial infarction with high thrombus load and best time for stent implantation

引用

World Journal of Clinical Cases 2022年第7期10卷 2106-2114页

作者： Ming-Feng Zhuo ke-lian Zhang Xue-Bin Shen Wen-Can Lin Bin Hu Hua-Peng Cai Gang Huang Department of Emergency Shishi General HospitalShishi 362700Fujian ProvinceChina Department of Cardiovascular Quanzhou First HospitalQuanzhou 362000Fujian ProvinceChina Department of Cardiology Affiliated Nanping First HospitalFujian Medical UniversityNanping 353000Fujian ProvinceChina

BACKGROUND Myocardial infarction is one of the most common types of coronary heart *** is mainly caused by the rupture of coronary atherosclerotic plaque,which leads to platelet agglutination and *** occlusion of coronary arteries and vessels leads to insufficient myocardial blood supply,subsequently causing cardiac interstitial fibrosis,gradual enlargement of ventricles,and heart failure,which affects the quality of life and safety of *** To investigate the effects of emergency percutaneous interventional therapy(PCI)and delayed stenting in acute myocardial infarction with high thrombotic load and identify factors related to major adverse cardiovascular events(MACE).METHODS A total of 164 patients with acute myocardial infarction and high thrombotic load who received PCI were *** them,92 patients were treated with delayed stent implantation(delayed group)and 72 patients received emergency PCI(immediate group).Myocardial perfusion after stent implantation was compared between the two *** were followed up for 12 mo,and the occurrence of MACE was used as the *** and multivariate models were used to analyze the factors affecting MACE *** After stent implantation,66(71.74%)patients in the delayed group and 40(55.56%)patients in the immediate group had thrombolysis in myocardial infarction(TIMI)flow grade 3(P0.05).MACE occurred in 29 *** were statistically significant differences between the MACE and non-MACE groups in diabetes rate,TIMI grading,stent implantation timing,intraoperative use of tirofiban,and the levels of white blood cells(WBC),neutrophils,red blood cell distribution width(RDW),and uric acid,and high-sensitivity C-reactive protein(hs-CRP)at admission(P<0.05).Logistic regression analysis showed that TIMI grade 3 and intraoperativ

关键词： Coronary thrombosis Myocardial infarction Emergency Percutaneous coronary intervention Treatment delay Adverse cardiovascular events

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：