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Technology in Agronomy 2022年第1期2卷 18-24页

作者： Yuan Dong Zhiqian Feng Ting Li ali farhan Xiaokang Tian Yonghui Lao Yinxin Duan Leiyong Si Xinghua Zhang Jiquan Xue Shutu Xu Key Laboratory of Biology and Genetic Improvement of Maize in Arid Areas of the Northwest Region Ministry of Agriculture and Rural AffairsCollege of AgronomyNorthwest A&F UniversityYanglingShaanxi 712100China Maize Engineering Technology Research Centre of Shaanxi Province Northwest A&F UniversityYangling Shaanxi 712100China Cereal Crop Research Institute(CCRI) NowsheraKyber Pakhtunkhwa 25000Pakistan

Identifying desirable genotypes with the best performance in diverse environments is a perpetual aim of plant breeding,and the interaction between genotype and environment(G×E)always plays a key *** study was conducted to elucidate the genetic behaviour of different hybrid combinations at various densities in diverse *** to a line×tester design,32 hybrid combinations were obtained from 16 inbred individuals crossed with two testers and planted at three locations at three density levels(45,000,67,500 and 90,000 plants ha-1)during ***(G),environment(E)and the interaction of genotype and environment(G×E)significantly affected grain yield at different *** planting density enhanced grain yield and improved the efficiency of germplasm screening,where the effect of location on grain yield at different densities was larger than that of year and the GCA was larger than the ***,four inbred lines(KB102,KB081,KA105,and KB106)with a high GCA,environmental adaptability,and several combinations using them as parents have been approved in ShannXi Province and National of *** conclusion,the evaluation of combining ability at multiple densities and locations can effectively screen inbred lines and improve breeding efficiency.

关键词： breeding Northwest planted

Input-parallel output-parallel configuration of boost half bridge DC-DC converter with control strategy

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Journal of Beijing Institute of Technology 2014年第1期23卷 47-52页

作者： SOOMRO Amir Mahmood KHAHRO Shahnawaz farhan KHASKHELI Murad ali 廖晓钟 farhan Manzoor School of Automation Beijing Institute of Technology Mehran University of Engineering and Technology Institute of Physics University of Sindh

The concept of connecting two boost half bridge DC-DC converter modules in input-paral- lel output-parallel configuration is presented. The input-parallel-output-parallel （IPOP） converter consists of multiple boost half bridge （BHB） DC-DC converter modules which are connected in par- allel at the input and output side. This kind of converter is an attractive solution for high power ap- plications. The correlation between input current sharing （ICS） and output current sharing （OCS） of the IPOP converter basic modules is described. Two loop control strategies, consisting of input cur- rent loop and output voltage loop, have been developed to achieve equal ICS and OCS in this present work. The control strategy for the IPOP configuration of boost haft bridge DC-DC converter has been verified for different load conditions （half load and full load）, The IPOP system proposed here is comprising of two modules but it can be extended to three or more. The performance of the pro- posed system along with the control strategy is verified by simulation in MATLAB using Simpower tool. Finally the satisfactory simulation results are obtained.

关键词： boost half bridge ( BHB ) input current sharing ( ICS ) input-parallel output-parallel(IPOP) output current sharing (OCS)

Detection of Copy-Move Forgery in Digital Images Using Singular Value Decomposition

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Computers, Materials & Continua 2023年第2期74卷 4135-4147页

作者： Zaid Nidhal Khudhair farhan Mohamed Amjad Rehman Tanzila Saba Saeed ali bahaj Faculty of Engineering School of ComputingUniversity Technology of MalaysiaJohar BahruMalaysia UTM-IRDA MaGICX Institute of Human Centered EngineeringUniversiti Teknologi MalaysiaMalaysia Artificial Intelligence&Data Analytics Lab CCIS Prince Sultan University Riyadh Saudi Arabia Computer Techniques Engineering Department Faculty of Information TechnologyImam Ja’afar Al-Sadiq UniversityBaghdadIraq

This paper presents an improved approach for detecting copy-move forgery based on singular value decomposition(SVD).It is a block-based method where the image is scanned from left to right and top to down by a sliding window with a determined *** each step,the SVD is ***,the diagonal matrix’s maximum value(norm)is selected(representing the scaling factor for SVD and a fixed value for each set of matrix elements even when rotating thematrix or scaled).Then,the similar norms are grouped,and each leading group is separated into many subgroups(elements of each subgroup are neighbors)according to 8-adjacency(the subgroups for each leading group must be far from others by a specific distance).After that,a weight is assigned for each subgroup to classify the image as forgery or ***,the F1 score of the proposed system is measured,reaching 99.1%.This approach is robust against rotation,scaling,noisy images,and illumination *** is compared with other similarmethods and presents very promised results.

关键词： Forgery image forensic image processing region duplication SVD transformation technological development

Numerical Investigations of Flow Pattern and Anti-Vortex Measures of the Pumping Station Forebay

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Numerical Investigations of Flow Pattern and Anti-Vortex Mea...

作者： Ahmed Nasr Elsayed ali Nasr farhan 扬州大学

学位级别：硕士

泵站前池是外河和进水池（进水流道）的连接段,其作用是为了保证水流在从外河流向进水池（进水流道）的过程中能够平顺地扩散,为进水池（进水流道）提供良好的流态。依据水流方向,前池可分为正向进水前池和侧向进水前池两种基本类型,侧... 详细信息

泵站前池是外河和进水池（进水流道）的连接段,其作用是为了保证水流在从外河流向进水池（进水流道）的过程中能够平顺地扩散,为进水池（进水流道）提供良好的流态。依据水流方向,前池可分为正向进水前池和侧向进水前池两种基本类型,侧向进水前池拥有占的地方少、投资省等各种特点,在中国的农业灌溉、火电厂循环供水及城战给水排水泵站中较为常见,若泵站兴建所处地形条件狭窄、正向进水不容易布置的情况下常采用侧向进水前池,此时侧向进水前池的水流与进水池（进水流道）水流方向正交或斜交,因流向的改变,前池内易形成回流或旋涡,流速分布变得不均匀,流态紊乱,造成进水池（进水流道）入口处流速分布不均匀,将会导致泵装置水力效率从而降低,影响泵装置中安全稳定的运行,并缩短水泵的使用寿命。本论文以江苏省徐州市翟山大沟泵站为本次的研究对象,该泵站的前池为典型的侧向进水结构且前池具有较大纵向底坡,为明确该泵站侧向进水前池的流场分布特征并且能够确保机组安全稳定的运行,本文将使用数值模拟技术的方法对该泵站的侧向进水前池内流场进行数值模拟,通过定性和定量相结合的分析方法揭示前池的流场特征并对前池流态调控措施的流场调控效果进行对比和分析,优选整流措施,为实际工程提供技术支撑,也为同类型泵站的前池流态调控提供参考。目前,国内外一些学者针对泵站前池的流场及流态调控措施的研究展开了不少的研究工作,研究方法主要集中于数值模拟和物理模型试验。随着实际泵站工程规模越来越大且复杂,物理模型试验的研究方式越来越不经济,且具有耗时长、人力受限和所需场地大等诸多困难而在前池流场及流态调控研究中应用的较少,随着CFD（Computational Fluid Dynamic）技术的不断发展和成熟。通过中国知网以及其他等数据库的文献查询,采用数值模拟技术研究前池流场的论文占比89.33%,CFD数值模拟技术具有省时、省工及研究成本低的优点在前池流场及流态调控中的应用也变得越来越多,很多学者采用CFD数值模拟技术模拟实际泵站工程的运行以得出问题并分析解决,通过数值模拟结果提出了流态调控措施解决实际泵站前池中的流态问题,对实际工程的前池流场做出改善,同时和物理模型试验相比,CFD数值模拟技术可模拟更大范围的泵站建筑物并更快捷、更经济地获得结论,本文对泵站前池流场及流态调控措施的研究采用数值模拟技术。翟山大沟泵站主要承担暴雨季排除多余的降水,在旱季为了能够保证农作物的正常需水,属于农业灌排泵站。泵站有四个进水池,每个进水池都装有潜水轴流泵装置单机设计流量为4.25 m3/s,泵站总设计流量为17 m3/s,每台泵之间的间距为4.4 m,进水池的长度为9.8m。引河的研究尺寸为:长83.3m,宽11.2m。该泵站受限于实际地形条件布置,前池通过两个斜坡与进水池相连接,第一级斜坡高差为1.1 m,第二级斜坡高差为4.9 m。（一）研究内容及技术路线（1）采用数值模拟技术分析翟山大沟泵站的侧向进水前池的流场分布特征;（2）针对该侧向进水前池的流态特征,提出不同的整流措施并开展数值计算;（3）采用定量和定性相结合的方法对比分析各整流措施方案与初设方案的前池流场的差异性,选优合适的整流方案。本文采用Solidworks三维建模软件对翟山大沟泵站引河、前池、进水池和潜水泵进行流体域的整体三维建模,通过网格数量无关性和网格收敛性确定数值计算网格数量从而确保数值计算的有效性,在分析初设方案前池流场特征的基础上提出若干侧向进水前池的整流措施,并通过定量和定性相结合的方法对比分析各整流措施方案,最终优选合适的整流措施,本文所研究的技术路线如图1所示:图1技术路线图（二）数值计算方法基于对三维不可压缩流体的雷诺时均N-S方程和RNG k-ε湍流模型,RNG k-ε湍流模型计算式如式（1）所示,壁面函数采用可伸缩壁面函数处理近壁区流动,采用ANSYSCFX软件对翟山大沟泵站的引河、前池、进水池和潜水泵的流场进行整体数值求解。非结构化网格拥有着很强的自适应几何形体的优点,则引河、前池、进水池和潜水泵均使用非结构化网格剖分,针对流场分析的重点关注区域进行了局部网格加密处理。计算模型的进口边界条件设置为流量,出口边界条件设置为压力,固体壁面采用无滑移壁面处理,引河的平均粗糙度设置为2.5 mm,前池和进水池的壁面粗糙度设置为2 mm。引河、前池和进水池的表面为自由液面,忽略空气对水面产生的切应力和热交换采用对称平面条件,各相连过流建筑物的交界面均采用静静交界面。泵站前池数值计算各物理量的残差收敛精度设置为1×10-6。RANS可以如下进行:（1）k方程可以表示为:（2）ε方程可以定义为:（3）ε方程可以从RANS方程得到。涡流粘度为:μt=ρCμk2/ε（4）常数σκ,σε,C1,C2,＆Cμ是根据软件ANSYS-CFX中基于实验数据在5%

关键词：泵站前池流态数值模拟整流侧向进水

Input series out putparallel based multi-modular boost half bridge DC-DC converter with a dynamic control scheme

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Journal of Beijing Institute of Technology 2014年第4期23卷 519-526页

作者： SOOMRO Amir Mahmood SYED Amjad ali KHIZER Arbab Nighat 廖晓钟 MANZOOR Muhammad farhan School of Automation Beijing Institute of Technology Mehran University of Engineering and Technology JamshoroSindhPakistan School of Mechatronics Beijing Institute of Technology

Multi-modular system plays an important role in power system architecture because low voltage and low power converters can be connected in any combination parallel or series at input/ output side in order to obtained any given power system specifications. Multi-modular boost haft bridge DC-DC converter in the configuration of input series output parallel has been investigated in this paper. The boost half bridge DC-DC converters are connected in input series output parallel con- figuration in order to achieve equal input voltage sharing and output current sharing between the con- verters. This can be achieved with the help of dynamic control scheme which consists of two loops, a voltage loop and a current loop, for each module. Dynamic behavior of multi-modular converter configuration has been observe by varying the load condition. Moreover, the results obtained through multi-modular converter describe that the system has good dynamic and steady state response. Al- though two converter modules are focused in this paper but it can be modified to any number of modules.

关键词： boost haft bridge ( BHB ) input series output parallel ( ISOP ) input voltage sharing(IVS) multi-modular output current sharing (OCS)

Geochemistry and in-situ U-Th/Pb Geochronology of the Jambil Meta-Carbonatites, Northern Pakistan: Implications on Petrogenesis and Tectonic Evolution

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Journal of Earth Science 2023年第1期34卷 70-85页

作者： Asad Khan Shah Faisal Kyle P.Larson Delores M.Robinson Huan Li Zaheen Ullah Mark Button Javed Nawab Muhammad farhan Liaqat ali Muhammad ali Department of Geology FATA UniversityFR Kohat26100Pakistan National Center of Excellence in Geology University of PeshawarPeshawar25130Pakistan Department of Earth Environmental and Geographic SciencesUniversity of British ColumbiaOkanaganKelownaBCVIV 1V7Canada Department of Geological Sciences the University of AlabamaBevill BuildingTuscaloosaAlabama35487USA Key Laboratory of Metallogenic Prediction of Nonferrous Metals and Geological Environment Monitoring Ministry of EducationSchool of Geosciences and Info-PhysicsCentral South UniversityChangsha410083China Department of Environmental Sciences Abdul Wali Khan UniversityMardan23200Pakistan Marine Science Department Zhejiang UniversityZhoushan316021China

The putative Jambil meta-carbonatites of Swat,northern Pakistan,occur as discrete intrusions into the Proterozoic Manglaur Formation,which are difficult to be distinguished from nearby calc-silicate marble because both rock types experienced regional metamorphism during Himalayan orogenesis that resulted in similar mosaic textures and mineral *** are often significant repositories of economic mineral resources and,therefore,are important to be distinguished from calc-silicate *** present new geochemical and geochronology data to distinguish between the two rock types and interpret the petrogenesis and tectonic evolution of the Jambil *** rock chemical data from the Jambil meta-carbonatites show characteristically high rare earth element(REE),Sr contents and lack of negative Eu anomaly,consistent with average calcio-carbonatite values worldwide and an igneous *** than 0.5 wt.% SrO in the metacarbonatites and SrO> 0.15 wt.% in constituent rock forming calcite are discriminating signatures of the Jambil ***,the Jambil meta-carbonatites are relatively depleted in Rb,Nb,Ta,Ti,Zr and Hf,relatively enriched in Ba,Th,Sr,and have a high LREE/HREE ratio when normalized to primitive *** carbon and oxygen isotope compositions vary from-3.5‰ to-4.3‰and from 9.7‰ to 12.3‰,*** geochemical characteristics indicate generation of the carbonatites through small degree of partial melting from a carbonated eclogitic ***-situ,U/Pb analysis of titanite indicates that the Jambil meta-carbonatites were emplacement at 438 ±3 *** combined with regional geological observations,we interpret the emplacement of the Jambil metacarbonatites to have taken place during the Silurian back arc extension within greater Gondwana and mark a transition from a compressional tectonic regime,brought about by collision of microcontinental blocks along the northern margin of Gondwana,to post-orogenic

关键词： Swat N Pakistan meta-carbonatites geochemistry LA-ICP-MS titanite&monazite UTh/Pb geochronology C and O isotopes Gondwana margin

Three Tier Fog Networks: Enabling IoT/5G for Latency Sensitive Applications

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China Communications 2019年第3期16卷 1-11页

作者： Romana Shahzadi Ambreen Niaz Mudassar ali Muhammad Naeem Joel J.P.C.Rodrigues farhan Qamar Syed Muhammad Anwar University Engineering and Technology COMSATS University Islamabad Wah campus National Institute of Telecommunications (Inatel) Instituto de Telecomunicac??es University ITMO University of Fortaleza (Unifor)

Following the progression in Internet of Things(IoT) and 5G communication networks, the traditional cloud computing model have shifted to fog computing. Fog computing provides mobile computing, network control and storage to the network edges to assist latency critical and computation-intensive applications. Moreover, security features are improved in fog paradigm by processing critical data on edge devices instead of data centres outside the control plane of users. However, fog network deployment imposes many challenges including resource allocation, privacy of users, non-availability of programming model and testing software and support for the heterogenous networks. This article highlights these challenges and their potential solutions in detail. This article also discusses threetier fog network architecture, its standardization and benefits in detail. The proposed resource allocation mechanism for three tier fog networks based on swap matching is described. Results show that by practicing the proposed resource allocation mechanism, maximum throughput with reduced latency is achieved.

关键词： cloud computing fog networks matching games internet of things

Intelligent Cloud Based Heart Disease Prediction System Empowered with Supervised Machine Learning

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Computers, Materials & Continua 2020年第10期65卷 139-151页

作者： Muhammad Adnan Khan Sagheer Abbas Ayesha Atta Allah Ditta Hani Alquhayz Muhammad farhan Khan Atta-ur-Rahman Rizwan ali Naqvi Department of Computer Science Lahore Garrison UniversityLahore54000Pakistan Department of Computer Science National College of Business Administration&EconomicsLahore54000Pakistan Department of Computer Science Government College UniversityLahore54000Pakistan Department of Information Sciences Division of Science&TechnologyUniversity of EducationLahore54000Pakistan Department of Computer Science College of ScienceMajmaah UniversityMajmmah11952Saudi Arabia Department of Forensic Sciences University of Health SciencesLahore54000Pakistan Department of Computer Science College of Computer Science and Information TechnologyImam Abdulrahman Bin Faisal UniversityDammam31441Saudi Arabia Department of Unmanned Vehicle Engineering Sejong UniversitySeoul05006Korea

The innovation in technologies related to health facilities today is increasingly helping to manage patients with different *** most fatal of these is the issue of heart disease that cannot be detected from a naked eye,and attacks as soon as the human exceeds the allowed range of vital signs like pulse rate,body temperature,and blood *** real challenge is to diagnose patients with more diagnostic accuracy and in a timely manner,followed by prescribing appropriate treatments and keeping prescription errors to a *** developing countries,the domain of healthcare is progressing day by day using different Smart healthcare:emerging technologies like cloud computing,fog computing,and mobile *** health records(EHRs)are used to manage the huge volume of data using cloud *** reduces the storage,processing,and retrieval cost as well as ensuring the availability of *** learning procedures are used to extract hidden patterns and data *** this research,a combination of cloud computing and machine learning algorithm Support vector machine(SVM)is used to predict heart *** results have shown that the proposed intelligent cloud-based heart disease prediction system empowered with a Support vector machine(SVM)-based system model gives 93.33%accuracy,which is better than previously published approaches.

关键词： Cloud computing machine learning healthcare

Chemical composition and antioxidant activity of a Lebanese plant Euphorbia macroclada schyzoceras

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Asian Pacific Journal of Tropical Biomedicine 2013年第7期3卷 542-548页

作者： Hussein farhan Hassan Rammal Akram Hijazi Ahmad Daher Mohamad Reda Hussein Annan ali Chokr ali Bassal Bassam Badran Doctoral School of Science and Technology Research Platform for Environmental Science Lebanese UniversityLebanon Faculty of Agricultural and Veterinary Sciences Lebanese UniversityLebanon Faculty of Sciences-1- Lebanese UniversityLebanon

Objective:To determine the chemical composition,total phenolic and total flavonoid contents ofthe crude extracts from leaves and stems of a Lebanese plantEuphorbia macroclada schyzoceras(***),and to evaluate their antioxidant potential using DPPH,H2O2,and chelating offerrous ions ***:Quantification of the total phenolic and total flavonoid contents ofthe crude extracts from leaves and stems and the antioxidant activities were evaluated usingspectrophotometric *** chemical composition has been estimated using differenttechniques such as IR,LC/MS and ***:Ethanolic extract from leaves *** was better than aqueous extract and showed higher content in total phenolic and total flavonoidthan found in the *** the other hand,using DPPH and H2O2tests,this extract from leavesshowed higher antioxidant capacity than aqueous ***,using the chelating of ferrousions test,the antioxidant activity of the aqueous extract of both stems and leaves was strongerthan that of ethanolic *** chemical composition of the whole plant showed the presence ofsome aromatic compounds and fatty ***:Both ethanolic and water extracts fromboth parts of this plant are effective and have good antioxidant ***,this plant can be usedin the prevention of a number of diseases related to oxidative stress.

关键词： Euphorbia macroclada schyzoceras Total phenolic Total flavonoid Antioxidant potential Chemical composition

Morphometric Analysis and Flash Floods Assessment for Drainage Basins of the Ras En Naqb Area, South Jordan Using GIS

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Journal of Geoscience and Environment Protection 2016年第6期4卷 9-33页

作者： Yahya farhan Omar Anaba ali Salim Department of Geography University of Jordan Amman Jordan

Morphometric analysis and flash floods assessment were conducted for the watersheds of Ras En Naqb escarpment, south Jordan. The study area comprises of twelve small watersheds occupying the faulted-erosional slopes, and the dip slopes. The drainage network shows that dendritic and sub-dendritic patterns dominated the dip slopes, whereas trellis pattern characterized the faulted-erosional slopes. Stream orders range from fourth to sixth order. The mean bifurcation ratios vary between 4.2 and 5.38 for the dip slope basins, and between 3.5 and 5.0 for the faulted-erosional slope watersheds, indicating a noticeable influence of structural disturbances (i.e., faulting and uplifting), and rejuvenation of drainage networks. All watersheds have short basin lengths, ranging from 23.8 km to 42.2 km for the dip slope basins, and between 15.3 km and 45.4 km for the faulted-erosional slope catchments. This is indicative of high flooding susceptibility associated with heavy rainstorms of short duration. The circularity ratios range from 0.177 to 0.704 which denote that the catchments are moderately circular on the faulted-erosional slopes, and to some extent elongated on the dip slopes. The length of overland flow values ranges from 0.854 to 0.924 for the dip slope catchments, whereas LO values for the faulted-erosional slopes vary from 0.793 to 0.945 denoting steep slopes and shorter paths on both dip slope and faulted-erosional slope watersheds. Values of stream frequency range from 1.509 to 1.692 for the dip slope, and from 1.688 to 2.0 for the faulted-erosional slope catchments. FS values are also indicative of slope steepness, low infiltration rate, and high flooding potential. The watersheds of the dip slopes show lower values of form factor varying from 0.079 to 0.364, indicating elongated shape and suggesting a relatively flat hydrograph peak for longer duration. Similarly, values of Dd are high for catchments on the dip slope basins (1.7

关键词： Ras En Naqb Escarpment Flash Flood Assessment Dip Slopes Faulted-Erosional Slopes Hypsometric Integral Jordan