检索结果-南通市图书馆

Saudi Scientific Diabetes Society Position Statement: Management of Diabetes Mellitus in the Pandemic of COVID-19

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

International Journal of Clinical Medicine 2020年第5期11卷 199-206页

作者： Abdulrahman Alshaikh Saud Alsifri Amani Alhozali Hala Mosli tarif zawawi Seraj Mira Emad R. Issak Medicine Department King Abdulaziz University Jeddah KSA Endocrinology Department Alhada Armed Forces Hospital Taif KSA Independent Researcher Cairo Egypt

About 10% coronavirus (COVID-19) infected patients are with diabetes comorbidity. Also, diabetes promotes severe progression in COVID-19 patients. Diabetes comorbidity is associated with significant mortality in those people with COVID-19. In this position statement, the management of diabetes in cases of COVID-19, has been presented. The impact of diabetes on the morbidity and mortality of COVID-19, as well as both the target glucose level and the method of blood glucose control have been presented in details.

关键词： COVID-19 Diabetes Mellitus Glycemic Target Blood Glucose Control

Modeling,Parameter Measurement,and Control of PMSG-based Grid-connected Wind Energy Conversion System

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Modern Power Systems and Clean Energy 2021年第5期9卷 1054-1065页

作者： Mohammad Kamruzzaman Khan Prince Graduate Mohammad tarif Ameen Gargoom Aman MTOo Md Enamul Haque Renewable Energy&Electric Vehicle(REEV)Lab Centre for Smart Power&Energy Research(cSPER)School of EngineeringDeakin UniversityWaurn pondsAustralia

The design of reliable controllers for wind energy conversion systems(WECSs)requires a dynamic model and accurate parameters of the wind *** this paper,a dynamic model and the parameter measurement and control of a direct-drive variable-speed WECS with a permanent magnet synchronous generator(PMSG)are *** experimental method is developed for measuring the key parameters of the *** measured parameters are used in the design of the *** generator-side converter is controlled using a vector control scheme that maximizes the power extraction under varying wind speeds.A model predictive controller(MPC)is designed for the grid-side voltage source converter(VSC)to regulate the active and reactive power flows to the power grid by controlling the d-and q-axis currents in the synchronous reference *** MPC predicts the future values of the control variables and takes control actions based on the minimum value of the cost *** comply with the grid code requirement,a modified design approach for an LCL filter is presented and incorporated into the *** design process is simple and incorporates significant filter parameters while avoiding iterative *** comparative analysis of the designed filter with conventional L,LC,and iterative LCL filters demonstrates the effectiveness of the modified design *** proposed wind energy system with MPC and LCL filter is simulated in MATLAB/Simulink and experimentally implemented in the laboratory using the dSpace digital signal processor(DSP)*** simulation and experimental results validate the efficacy of the designed controllers using the measured parameters and show dynamic and steady-state performance under varying wind speeds.

关键词： Wind energy permanent magnet synchronous generator(PMSG) parameter measurement model predictive controller(MPC) LCL filter

Using of GIS Spatial Analyses to Study the Selected Location for Dam Reservoir on Wadi Al-Jirnaf, West of Shirqat Area, Iraq

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

Journal of Geographic Information System 2012年第2期4卷 117-127页

作者： Sabbar Abdulla Salih Abdul Salam Mehdi Al-tarif Natural Resources Research Center University of Tikrit Tikrit Iraq

The GIS data of digital elevation model, topographic maps of different scales, satellite images and GPS were used to analyze the geometrical relations, bathometric properties and shape form of selected depressions on Al-Jirnaf valley. GIS was used to analyze the hydromorphometry and geometry of the depressions, these analyses explain the role of main valley’s contribution to the hydrology of the valley, then, three locations for water storage were suggested. 2D and 3D models of the sites were given, the maximum level, volume, surface area, circumference, shape factor of three supposed reservoirs calculated for different hypothetical levels of water in the reservoir, and the optimal level were determined, the maximum suggested levels are 190, 185 and 180 m, the areas are 3.25, 7.97 and 20.47 km2, the volumes are 0.0096, 0.0334 and 0.1118 km3 for the three locations respectively. This experimental procedure can be repeated in other depressions for the same purpose.

关键词： GIS Spatial Analysis Geometry Dam Reservoir Iraq

Morphometric, Hydrogeologic and Hydrochemical Analyses of Solar Saltwork Pond Region, in Meha Area, Northwest Sharqat City, Iraq

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Geographic Information System 2012年第2期4卷 86-95页

作者： Sabbar Abdulla Salih Jabir Hameed Ulaiwi AbdulSalam Mehdi Al-tarif Ali Ismail Al-Juboury Department of Applied Geology College of Science University of Tikrit Iraq Natural Resources Research Center University of Tikrit Tikrit Iraq Research Center for Dams & Water Resources Mosul University Mosul Iraq

The study determines the shape, area, and discharge properties and other factors of morphometric analysis and drainage pattern to characterize the optimum location for salt harvesting in the salt ponds in Meha area, northwest Sharqat city, Iraq. The morphometric analysis confirms the idea of the upward leakage of salt rich water from the deep ground water along the surface of deep fault. The hydrogeological data of groundwater leakage encourage the method of harvesting salt by evaporation ponds. Also, the relationship between hydrochemical parameters, their variation with the period of evaporation, increasing of Na+ and Cl– percentages, and decreasing of other component support the salt production in the area.

关键词： Morphometry Hydrogeology Hydrogeochemistry Salt Pond Iraq

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

板卷开卷箱应用的新发展

本钢技术 1996年第1期 57-63页

作者： tarif Korabi Hugh B Johnson 林红天加拿大钢铁技术公司

使用卷取箱主要用来减少带钢热轧机中驱动的电、能的消耗及降低轧制力。轧制力小可使带卷在较少的精轧机架上,在均匀温度和速度下完成轧制,并改进厚度和温度的控制。随着无卷筒传送机的侧面热挡板的研制,改善了坯料温度的一致性。同时... 详细信息

使用卷取箱主要用来减少带钢热轧机中驱动的电、能的消耗及降低轧制力。轧制力小可使带卷在较少的精轧机架上,在均匀温度和速度下完成轧制,并改进厚度和温度的控制。随着无卷筒传送机的侧面热挡板的研制,改善了坯料温度的一致性。同时使用了板卷蓄热炉,提高了开卷箱带钢

关键词：带钢热轧机机架精轧开卷箱机座板卷轧机轧制带卷地下卷取机初轧板坯坯料卷取温度连续铸钢机板坯连铸机恒速轧制

Does Playing Games Contribute to Develop Better Attitudes？

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

Psychology Research 2014年第4期4卷 301-309页

作者： Maria Thereza Costa Coelho de Souza Ana Lucia Petty Camila tarif Ferreira Folquitto Mariana Ines Garbarino Tamires Alves Monteiro University of Sao Paulo S~o Paulo Brazil

This research was held at the Laboratory of Studies about Development and Learning (Institute of Psychology, University of Sao Paulo) for the period of three semesters in which children with learning disabilities aged 7-11 years were observed in a game context mediated by professionals. It investigated in which categories playing games interfered in the construction of favorable attitudes towards the learning and development processes. To collect data researchers used a questionnaire, answered in the beginning and at the end of each semester, and where attitudes were registered considering four categories: time, space, objects and interaction. A total of 88 questionnaires were analyzed. Results show that: (1) All categories increased scores; (2) There was no decrease in any category; (3) At space and objects there were more visible changes, comparing high scores between the first and third semesters, increasing 25% and 36% respectively; (4) At time and interaction, changes showed 20% high score increase in both, also comparing first with third semester; and (5) It was identified a decrease in low scores at time and there were not visible changes at interaction. Taking Piaget"s theory as reference and the practice in seeing children with learning disabilities at the laboratory, playing games in an intervention context contributes to help them build up better attitudes towards reasoning and social development.

关键词：游戏背景学习障碍开发专业人士研究人员相互作用社会发展实验室

Considerations About Psychological Development of Children With ADHD （Attention Deficit Hyperactivity Disorder）

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Psychology Research 2014年第3期4卷 168-177页

作者： Camila tarif F. Folquitto Camila L. Rodrigues Enio R. Andrade Cristiana C. C. Rocca Maria Thereza C. C. Souza University of Sao Paulo Sao Paulo Brazil