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734篇 您的检索式:作者名="Islam K"
    题名 作者 年代 出处 被引量
1双齿轮式排肥器设计与试验显示文摘为了提高颗粒肥料的施肥均匀性,设计了双齿轮式排肥器。利用离散元软件对排肥过程进行仿真分析,以排肥轮压力角、排肥轮间隙为试验因素,以排肥均匀度变异系数为排肥效果评价指标,分析因素对指标的影响。单因素试验结果表明,排肥轮压力角在15°~25°,排肥轮间隙在4~6 mm,排肥效果较好;通过二次通用旋转组合试验,建立了两个因素与评价指标的回归方程,试验结果表明,随排肥轮压力角、排肥轮间隙的增大,排肥均匀度变异系数均呈现先增大、后减小的趋势,当排肥轮压力角为19.52°、排肥轮间隙为4.7 mm时,排肥器具有最优的排肥效果,此时理论计算和仿真试验的排肥均匀度变异系数分别为15.30%和14.58%,两者偏差为0.72个百分点,说明回归模型准确。最优结构参数组合下双齿轮式排肥器的台架试验结果表明,排肥量可通过排肥轮转速线性调节,排肥均匀度变异系数为15.42%,与仿真值及理论值基本一致;同等条件下外槽轮排肥器的排肥均匀度变异系数为20.29%,试验排肥器排肥均匀度变异系数提高了31.58%,排肥均匀性得到明显改善。顿国强 于春玲 郭艳玲 纪文义 ISLAM K R 杜佳兴 2020农业机械学报2020,51,3:17
2Development of an Arabic version of the National Eye Institute Visual Function Questionnaire as a tool to study eye diseases patients in Egypt显示文摘AIM:To develop and test an Arabic version of the National Eye Institute Visual Function Questionnaire-25(NEI-VFQ-25).METHODS:NEI-VFQ-25 was translated into Arabic according to WHO translation guidelines. We enrolled adult consenting patients with bilateral chronic eye diseases who presented to 14 hospitals across Egypt from October to December 2012, and documented their clinical findings. Psychometric properties were then tested using STATA.RESULTS:We recruited 379 patients, whose mean age was(54.5±15)y. Of 46.2% were males, 227 had cataract,31 had glaucoma, 23 had retinal detachment, 37 had diabetic retinopathy, and 61 had miscellaneous visual defects. Non-response rate and the floor and ceiling numbers of the Arabic version(ARB-VFQ-25) were calculated. Internal consistency was high in all subscales(except general health), with Cronbach-α ranging from0.702-0.911. Test-retest reliability was high(intraclass correlation coefficient 0.79).CONCLUSION:RB-VFQ-25 isareliableandvalidtool for assessing visual functions of Arabic speaking patients. However, some questions had high non-response rates and should be substituted by available alternatives. Our results support the importance of including self-reported visual functions as part of routine ophthalmologic examination.Nizar Saleh Abdelfattah Mohamed Amgad Ahmed A Salama Marina E Israel Ghada A Elhawary Ahmed E Radwan Mohamed M Elgayar Tamer M EL Nakhal Islam T Elkhateb Heba A Hashem Doha K Embaby Amira A Elabd Reem K Elwy Magdi S Yacoub Hamdy Salem Mohamed Abdel-Baqy Ahmad Kassem 2014International Journal of Ophthalmology(English edition)2014,7,5:8
3高非线性光子晶体光纤与单模光纤之间的熔接及其损耗分析显示文摘采用商用的光纤熔接机实现了高非线性光子晶体光纤和单模光纤之间的熔接,给出了熔接的过程并指出了熔接过程中要注意的问题。分析了影响熔接损耗的主要因素,理论分析结果和实验结果是一致的。桑新柱 余重秀 Islam M K 2005半导体光电2005,26,6:2
4简易转速测量系统设计显示文摘介绍了一种基于定时器的转速测量系统的设计与开发。使用直流电动机的转轴来测量其转速,定时器IC 555用于不稳定模式。使用数字存储示波器(DSO)测量的定时器输出波形的频率几乎与转轴的转速成线性比例,而这个转速又与外部输入电压水平的变化成线性关系,由此得到了定时器输出波形频率与转速之间的线性关系。该系统的主要优点是线性输入-输出,体积小,便于携带且成本低。Akash Kumar Anindya Debnath Antar Banik Kabirul Islam Mondal Partha Pratim Biswas Rik Bhattacharyya T K Maiti 2020Journal of Measurement Science and Instrumentation2020,11,2:2
5Addition of individual barley chromosomes to wheat显示文摘Islam A K M R 1975Barley Genet1975,111,:1
6Aerodynam- ic models for Darrieus-type straight- bladed vertical axis wind turbines 显示文摘Mazharul Islamic David S K Ting Amir Fartaj 2008Renewable and Sustainable Energy Re- views2008,,12:1
7Pa- tient dose from kilo - voltage cone beam computed tomography imaging in radiation therapy 显示文摘Islam M K Purdie T G Non'linger B D 2006Med Phys2006,33,6:1
8Biosolid impact on heavy metal accumulation and lability in Soiln under altemateyear no-till com-soybean rotation显示文摘ISLAM K R AHSAN S BARIK K 2013Water air and soil pollution2013,224,2:1
9Concentration and temperature transients in heterogeneous porous media part Ⅰ:Linear transport显示文摘Ocabas K Islam M R 2000Journal of Petroleum Science and Engineering2000,26,2:1
10Fall fertilization of Pinusresinosa seedlings:nutrient uptake,cold hardiness,and morphological de-velopment显示文摘ISLAM M A APOSTOL K G JACOBS D F 2009Annals of Forest Science2009,66,7:1
11IS8301:the Second Insertion Sequence Element from Deinococcus radiodurans显示文摘NARUMI I ISLAM S CHERDCHU K GenBank Accession Number0,,:1
12Swertiarnarin ameliorates inflammation and osteoclastogenesis intermediates in IL-113 induced rat fibroblast-like synoviocytes 显示文摘Saravanan S Islam VI Thirugnanasambantham K 2014Inflamm Res2014,63,6:1
13Fabrication, synthesis and mechanical characterization of nanoparticles infused polyurethane foams显示文摘Hassan Mahfuz Vijaya K Rangari Mohammed S Islam 2004Composites: Part A2004,35,:1
14Development of flood hazard maps of Bangladesh using NOAA-AVHRR images with GIS显示文摘M M Islam K Sado 2000Hyd rological Sciences Journal2000,45,3:1
15Brain-derived neurotrophic factor (BDNF) has proliferative effects on neural stem cells through the truncated TRK-B receptor,MAP kinase,AKT,and STAT-3 signaling pathways显示文摘Islam O Loo TX Heese K 2009Curr Neurovasc Res2009,6,1:1
16Experimental Study on Heat Transfer Augmentation for High Heat Flux Re-moval in Rib-Roughened Narrow Channels显示文摘Islam M S Hino R Haga K et ai 1998Nuclear Science and Technology1998,35,9:1
17Environmental tobacco smoke and absenteeism related to respiratory illness in schoolchildren显示文摘Gilliland FD Berhane K Islam T 2003Am J Epidemiol2003,157,10:1
18Dynamic interfacial tension in surfactant enhanced alkaline flooding显示文摘Taylor K C Hawkins B F Rafiq Islam M 1990J Canada Petrol Technol1990,29,1:1
19Aerodynamic models for darrieus-type straight-bladed vertical axis wind turbines 显示文摘ISLAM M TING D S K FARTAJ A 2008Renewable and Sustainable Energy Reviews2008,12,4:1
20Land use effects on soil quality in a tropical forest ecosystem of Bangladesh显示文摘Islam K R Weil R R 2000Agriculture Ecosystems and Environment2000,79,1:1
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