检索结果-南通市图书馆

Therapeutic Effect of Zygophyllum cornutum on Metabolic Disturbances, Oxidative Stress in Heart Tissue and Histological Changes in Myocardium of Streptozotocin-induced Diabetic Rats

引用

Journal of Life Sciences 2016年第4期10卷 192-197页

作者： Awatif Boumaza Samira Ferdi Houda Sbayou Fatima Khelifi Touhami mohamed habib belmahi Cherifa Benlatreche Laboratory of Biology Water and Environment University of 8 Mai 1945 Guelma 24000 Algeria Department of Animal Biology University of Mentouri-Constantine 1 Constantine 25000 Algeria Faculty of Medicine University of Mentouri Constantine 25000 Algeria University of Hassan l er Faculty of Sciences and Technology Department of Biology Settat Morocco

The present study depicts the therapeutic effect of Zygophyllum cornutum methanolic extract （ZCME） on metabolic disturbances, oxidative stress in heart and myocardium histological changes in streptozotocin （STZ）-induced diabetic rats. Three days after diabetes induction, ZCME was administered orally for six weeks （700 mg/kg bw/day）. Serum glucose and lipid profile were evaluated. Reduced glutathione （GSH）, catalase （CAT） and thiobarbituric acid reactive substances （TBARS） were measured in heart tissue. The results showed increased levels of blood glucose, total cholesterol （TC）, LDL cholesterol （LDL-C） and triglyceride （TG） in the diabetic rats. On the other hand, the level of HDL cholesterol （HDL-C） decreased. Compared to the control normal rats, the level of TBARS in heart tissue was markedly increased while GSH and CAT were significantly modified in the diabetic rats. Oral administration of ZCME has normalized serum glucose and lipid profile. TBARS were significantly reduced in heart while CAT and GSH were markedly normalized. Myocardium sections showed the absence of histological changes observed in the diabetic rats. The study suggests that Zygophyllum cornutum may provide a useful therapeutic option in the reversal of metabolic disturbances and oxidative stress-induced cardiac dysfunction in diabetes mellitus.

关键词： Diabetes mellitus myocardium oxidative stress Zygophyllum cornutum coss.

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

SCALAR CURVATURE TYPE PROBLEM ON THE THREE DIMENSIONAL BOUNDED DOMAIN

引用

Acta Mathematica Scientia 2017年第1期37卷 139-173页

作者： mohamed BEN AYED habib FOURTI Faculte des Sciences Universite de SfaxRoute SoukraSfaxTunisie Institut Preparatoire Aux Etudes d'Ingenieurs Universite de SfaxSfaxTunisie

In this paper we prove an existence result for the nonlinear elliptic problem：-△u = Ku5,u 〉 0 in Ω,u = 0 on Ω,where Ω is a smooth bounded domain of R3 and K is a positive function in Ω.Our method relies on stud... 详细信息

关键词： scalar-curvature critical point limiting Sobolev exponent variational prob-lems with lack of compactness blow up analysis

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

An Advanced FMRL Controller for FACTS Devices to Enhance Dynamic Performance of Power Systems

引用

International Journal of Automation and computing 2011年第3期8卷 309-316页

作者： Abdellatif Naceri habib Hamdaoui mohamed Abid IRECOM Laboratory Department of Electrical Engineering Djillali Liabes University of Sidi Bel-Abbes ICEPS Laboratory Department of Electrical Engineering Djillali Liabes University of Sidi Bel-Abbes

The parameters of power system slowly change with time due to environmental effects or may change rapidly due to faults. It is preferable that the control technique in this system possesses robustness for various fault conditions and disturbances. The used flexible alternating current transmission system （FACTS） in this paper is an advanced super-conducting magnetic energy storage （ASMES）. Many control techniques that use ASMES to improve power system stability have been proposed. While fuzzy controller has proven its value in some applications, the researches applying fuzzy controller with ASMES have been actively reported. However, it is sometimes very difficult to specify the rule base for some plants, when the parameters change. To solve this problem, a fuzzy model reference learning controller （FMRLC） is proposed in this paper, which investigates multi-input multi-output FMRLC for time-variant nonlinear system. This control method provides the motivation for adaptive fuzzy control, where the focus is on the automatic online synthesis and tuning of fuzzy controller parameters （i.e., using online data to continually learn the fuzzy controller that will ensure that the performance objectives are met）. Simulation results show that the proposed robust controller is able to work with nonlinear and nonstationary power system （i.e., single machine-infinite bus （SMIB） system）, under various fault conditions and disturbances.

关键词： Transient power system stability and robustness single machine-infinite bus (SMIB) system flexible alternating currenttransmission system (FACTS) advanced super-conducting magnetic energy storage (ASMES) fuzzy model reference learning controller(FMRLC) adaptive control learning controller.

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

Cooperative Answering of Fuzzy Queries

引用

Journal of Computer Science & Technology 2009年第4期24卷 675-686页

作者： Narjes Hachani mohamed Ali Ben Hassine Hanene Chettaoui habib Ounelli Department of Computer Sciences Faculty of Sciences of Tunis University Campus Tunis 1060 Tunisia

The majority of existing information systems deals with crisp data through crisp database systems. Traditional Database Management Systems （DBMS） have not taken into account imprecision so one can say there is some sort of lack of flexibility. The reason is that queries retrieve only elements which precisely match to the given Boolean query. That is, an element belongs to the result if the query is true for this element; otherwise, no answers are returned to the user. The aim of this paper is to present a cooperative approach to handling empty answers of fuzzy conjunctive queries by referring to the Formal Concept Analysis （FCA） theory and fuzzy logic. We present an architecture which combines FCA and databases. The processing of fuzzy queries allows detecting the minimal reasons of empty answers. We also use concept lattice in order to provide the user with the nearest answers in the case of a query failure.

关键词： cooperative system database empty answer formal concept analysis fuzzy query

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

Improving Association Rules Accuracy in Noisy Domains Using Instance Reduction Techniques

引用

Computers, Materials & Continua 2022年第8期72卷 3719-3749页

作者： Mousa Al-Akhras Zainab Darwish Samer Atawneh mohamed habib College of Computing and Informatics Saudi Electronic UniversityRiyadh11673Saudi Arabia King Abdullah II School for Information Technology The University of JordanAmman11942Jordan Faculty of Engineering Port Said UniversityPort Said42523Egypt

Association rules’learning is a machine learning method used in finding underlying associations in large *** intentionally or unintentionally present,noise in training instances causes overfitting while building the classifier and negatively impacts classification *** paper uses instance reduction techniques for the datasets before mining the association rules and building the *** reduction techniques were originally developed to reduce memory requirements in instance-based *** paper utilizes them to remove noise from the dataset before training the association rules *** experiments were conducted to assess the accuracy of association rules with different instance reduction techniques,namely:DecrementalReduction Optimization Procedure(DROP)3,DROP5,ALL K-Nearest Neighbors(ALLKNN),Edited Nearest Neighbor(ENN),and Repeated Edited Nearest Neighbor(RENN)in different noise *** show that instance reduction techniques substantially improved the average classification accuracy on three different noise levels:0%,5%,and 10%.The RENN algorithm achieved the highest levels of accuracy with a significant improvement on seven out of eight used datasets from the University of California Irvine(UCI)machine learning *** improvements were more apparent in the 5%and the 10%noise *** RENN was applied,the average classification accuracy for the eight datasets in the zero-noise test enhanced from 70.47%to 76.65%compared to the original *** average accuracy was improved from 66.08%to 77.47%for the 5%-noise case and from 59.89%to 77.59%in the 10%-noise *** confidence was also reported in building the association rules when RENN was *** above results indicate that RENN is a good solution in removing noise and avoiding overfitting during the construction of the association rules classifier,especially in noisy domains.

关键词： Association rules classification instance reduction techniques classification overfitting noise data cleansing

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

Design and Manufacture of Air Intake System for Formula SAE Racing Car

Design and Manufacture of Air Intake System for Formula SAE ...

引用

作者： mohamed habib Osman mohamed 厦门理工学院

学位级别：硕士

本课题是关于FSAE赛车进气系统的设计与制造过程。多年来,该系统的大部分设计都是通过反复试验和错误的过程进行的,因此本研究试图确定与该系统设计相关的科学和工程原则。进气系统分为不同的部分,并讨论相关的原理。根据FSAE规则的要求... 详细信息

本课题是关于FSAE赛车进气系统的设计与制造过程。多年来,该系统的大部分设计都是通过反复试验和错误的过程进行的,因此本研究试图确定与该系统设计相关的科学和工程原则。进气系统分为不同的部分,并讨论相关的原理。根据FSAE规则的要求,每个大学团队赛车必须在他们的进气系统上安装一个直径必须小于20mm的节流器。发动机采用亚翔LD450。这是一台中国制造的单缸汽油发动机。并利用AVL Boost软件对仿真结果进行预测。根据分析结果,利用ANSYS FLUENT模块对发动机进气腔内流场进行了分析,为提高发动机进气性能提供了依据。通过减少进气系统的压力损失,改善性能。采用熔融沉积模型建立进气系统,然后通过真空袋将其覆盖在碳纤维复合材料层中。由于这种方法,几何形状的进气系统已重新设计,以减少重量,增加功率和扭矩通过RPM。本案例研究通过FDM与复合材料叠层相结合的方法,提出了一种低成本的功能部件制造方法。

关键词：方程式赛车进气系统 AVL boost CFD 设计

来源：

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Modeling CO_(2)Emission in Residential Sector of Three Countries in Southeast of Asia by Applying Intelligent Techniques

引用

Computers, Materials & Continua 2023年第3期74卷 5679-5690页

作者： Mohsen Sharifpur mohamed Salem Yonis M Buswig habib Forootan Fard Jaroon Rungamornrat Clean Energy Research Group Department of Mechanical and Aeronautical EngineeringEngineering IIIUniversity of PretoriaPretoriaSouth Africa Department of Medical Research China Medical University HospitalChina Medical UniversityTaichungTaiwanChina School of Electrical and Electronic Engineering Universiti Sains Malaysia(USM)Nibong Tebal14300PenangMalaysia Institute of Sustainable and Renewable Energy ISuRE Faculty of EngineeringUniversityMalaysia Sarawak Department of Renewable Energies Faculty of New Sciences and TechnologiesUniversity of TehranTehranIran Center of Excellence in Applied Mechanics and Structures Department of Civil EngineeringFaculty of EngineeringChulalongkorn UniversityBangkok10330Thailand

Residential sector is one of the energy-consuming districts of countries that causes CO_(2)emission in large *** this regard,this sector must be considered in energy policy making related to the reduction of emission of CO_(2)and other greenhouse *** the present work,CO_(2)emission related to the residential sector of three countries,including Indonesia,Thailand,and Vietnam in Southeast Asia,are discussed and modeled by employing Group Method of Data Handling(GMDH)and Multilayer Perceptron(MLP)neural networks as powerful intelligent *** to modeling,data related to the energy consumption of these countries are represented,discussed,and ***,to propose a model,electricity,natural gas,coal,and oil products consumptions are applied as inputs,and CO_(2)emission is considered as the model’s *** obtained R^(2) values for the generated models based on MLP and GMDH are 0.9987 and 0.9985,***,values of the Average Absolute Relative Deviation(AARD)of the regressions using the mentioned techniques are around 4.56%and 5.53%,*** values reveal significant exactness of the models proposed in this article;however,making use of MLP with the optimal architecture would lead to higher accuracy.

关键词： CO_(2)emission GMDH MLP intelligent techniques energy consumption

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

Effect of reaction and post-treatment conditions on physico-chemical properties of magnetic iron oxide nano-particles Author links open overlay panel

引用

Particuology 2024年第8期91卷 155-167页

作者： Masome Moeni mohamed Edokali Matthew Rogers Oscar Cespedes Louey Tliba Tamseela habib Robert Menzel Ali Hassanpour School of Chemical and Process Engineering Faculty of Engineering and Physical ScienceUniversity of LeedsLeedsLS29JTUK School of Physics and Astronomy Faculty of Engineering and Physical ScienceUniversity of LeedsLeedsLS29JTUK Mechanical Engineering Department University of Engineering&TechnologyLahorePakistan School of Chemistry Faculty of Engineering and Physical ScienceUniversity of LeedsLeedsLS29JTUK

Poor stability and dispersibility,as well as aggregation are considered as major challenges in clinical application of iron oxide nanoparticles(IONPs).Several studies have shown that the synthesis parameters and post-synthesis treatments e.g.,drying methods,have the capability to improve the particles'***,we investigate the combined effect of synthesis and post-treatment parameters on the particle size,stability and magnetism of ***(Fe_(3)O_(4))NPs were prepared via co-precipitation and post-treated using different methods,i.e.(i)freeze dried at-53℃,0.133 mbar for 48 h(liquid nitrogen frozen(LFD)and freezer frozen(FFD)),(ii)vacuum oven dried(VOD)at 60℃for 24 h,and(iii)kept wet colloidal(WET),dispersed in deionized *** Fe_(3)O_(4)NPs’chemical functional groups,size,shape,crystallinity,stability,aggregation,porosity,and magnetic properties were further analysed using different characterisation *** results showed that,while the WET sample had the best stability and significantly less aggregation at different temperatures,amongst post-treated Fe_(3)O_(4)NPs,LFD sample exhibited the best stability(up to 37℃),dispersion and smallest polydispersity ***,all dried NPs had superparamagnetic characteristics,while,LFD Fe_(3)O_(4)NPs had better magnetic properties and stability than other drying methods.

关键词： Iron oxide nanoparticles Co-precipitation Stability Aggregation Magnetic properties

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

Urdu Ligature Recognition System:An Evolutionary Approach

引用

Computers, Materials & Continua 2021年第2期66卷 1347-1367页

作者： Naila habib Khan Awais Adnan AbdulWaheed Mahdi Zareei Abdallah Aldosary Ehab Mahmoud mohamed Department of Computer Science Institute of Management SciencesPeshawar25000Pakistan Department of Information Technology Hazara UniversityMansehra21120Pakistan School of Electrical and Computer Engineering Seoul National UniversitySeoul08826South Korea Tecnologico de Monterrey School of Engineering and SciencesZapopan45201Mexico Department of Computer Science Prince Sattam Bin Abdulaziz UniversityAs Sulayyil11991Saudi Arabia Electrical Engineering Department College of EngineeringPrince Sattam Bin Abdulaziz UniversityWadi Addwasir11991Saudi Arabia Electrical Engineering Department Faculty of EngineeringAswan UniversityAswan81542Egypt

Cursive text recognition of Arabic script-based languages like Urdu is extremely complicated due to its diverse and complex *** approaches like genetic algorithms have been used in the past for various optimization as well as pattern recognition tasks,reporting exceptional *** proposed Urdu ligature recognition system uses a genetic algorithm for optimization and *** the proposed recognition system observes the processes of pre-processing,segmentation,feature extraction,hierarchical clustering,classification rules and genetic algorithm optimization and *** pre-processing stage removes noise from the sentence images,whereas,in segmentation,the sentences are segmented into ligature *** features are extracted from each of the segmented ligature ***-feature hierarchical clustering is observed that results in clustered ***,classification rules are used for the representation of the clustered *** genetic algorithm performs an optimization mechanism using multi-level sorting of the clustered data for improving the classification rules used for recognition of Urdu *** conducted on the benchmark UPTI dataset for the proposed Urdu ligature recognition system yields promising results,achieving a recognition rate of 96.72%.

关键词： Classification rules genetic algorithm intra-feature hierarchical clustering ligature recognition Urdu script

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

Effects of the hydro-ethanolic extract of Marrubium vulgare in female rats

引用

Asian Pacific Journal of Tropical Medicine 2017年第2期10卷 154-158页

作者： Rim Aouni Mossadok Ben Attia mohamed habib Jaafoura Amina Bibi-Derbel Mustapha Haouari Faculty of Sciences of Bizerte Department of life Sciences7021 JarzounaUniversity of Carthage INNTA SURVEN Research Laboratory(Monitoring and nutritional epidemiology in Tunisia) Laboratoire Biomonitoring of the Environment Faculty of Sciences of Bizerte.7021 JarzounaUniversity of Carthage Orthopedic Institutemohamed Kassab Laboratory of Cyto-Morphology and Anatomy Pathologic National Institute of Nutrition and Food technology Clinical laboratory of biochemistry Ecole Superior of Science and Technology of Health of Tunis University of Tunis El Manar

Objective:To evaluate the effects of ethanol–water(80:20) extract of Marrubium vulgare(***) on the hematological parameters,macroscopic and histological aspects of the uterus and fetus in non-pregnant and pregnant ***:Female rats were divided into 4 equal groups(n = 9),group N(normal rats) and group G(pregnant rats) considered as control groups,group NE(normal rats treated with the ethanol–water(80:20,v/v) extract of ***) and group GE(pregnant rats treated with the extract).The ethanol–water(80:20) plant extract was administered in a single daily dose 1 g/kg at the morning,during 19 *** the 19 day of the experiment,animals were sacrificed,the uterus and fetuses were removed for the morphological and histological studies and the blood was collected in EDTA tubes for the measurement of hematological parameters with the use of an automate ‘HORIBA ABX Micros 60 Hematology Analyzer'.Results:Our results showed,in group NE and GE,a significant decrease on hematological parameters:red blood cells(NE:18.6%;GE:38.4%),hematocrit(NE:13.8%;GE:20.4%),hemoglobin(NE:12.1%;GE:8.3%) and mean corpuscular volume(NE:6.4%;GE:2%) with P more less a ***,the extract of *** caused a significant decrease on the mean implantations of fetuses(82.5%,P<0.001) and their size(47.2%,P< 0.01).As for the macroscopic and histological appearance of uterus,our data showed no change in normal treated *** contrast,the treated pregnant rats showed a severe histological change characterized by the existence of location of stopped ***,it was also found in the uterus of these rat lyses placental and embryo ***:All these results support the hypothesis of an abortifacient effect of ***.

关键词： Vegetal extract Abortificiant effect Hematological parameters Fetuses Uterus Histology

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：