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3D point cloud data to quantitatively characterize size and shape of shrub crops

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Horticulture Research 2019年第1期6卷 1189-1205页

作者： Yu Jiang Changying Li Fumiomi Takeda Elizabeth A.Kramer Hamid ashrafi Jamal Hunter School of Electrical and Computer Engineering College of EngineeringThe University of GeorgiaAthensGA 30602USA Appalachian Fruit Research Station United States Department of Agriculture-Agricultural Research ServiceKearneysvilleWV 25430USA Department of Agricultural and Applied Economics College of Agricultural and Environmental SciencesThe University of GeorgiaAthensGA 30602USA Department of Horticultural Science North Carolina State UniversityRaleighNC 27695USA Department of Entomology College of Agricultural and Environmental SciencesThe University of GeorgiaAthensGA 30602USA

Size and shape are important properties of shrub crops such as blueberries,and they can be particularly useful for evaluating bush architecture suited to mechanical *** overall goal of this study was to develop a 3D imaging approach to measure size-related traits and bush shape that are relevant to mechanical harvesting.3D point clouds were acquired for 367 bushes from five genotype *** cloud data were preprocessed to obtain clean bush points for characterizing bush architecture,including bush morphology(height,width,and volume),crown size,and shape descriptors(path curveλand five shape indices).One-dimensional traits(height,width,and crown size)had high correlations(R^(2)=0.88–0.95)between proposed method and manual measurements,whereas bush volume showed relatively lower correlations(R^(2)=0.78–0.85).These correlations suggested that the present approach was accurate in measuring one-dimensional size traits and acceptable in estimating three-dimensional bush *** results demonstrated that the five genotype groups were statistically different in crown size and bush *** differences matched with human evaluation regarding optimal bush architecture for mechanical *** particular,a visualization tool could be generated using crown size and path curveλ,which showed great potential of determining bush architecture suitable for mechanical harvesting ***,the processing pipeline of 3D point cloud data presented in this study is an effective tool for blueberry breeding programs(in particular for mechanical harvesting)and farm management.

关键词： harvesting size crown

High Impedance Fault Detection of Distribution Network by Phasor Measurement Units

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Smart Grid and Renewable Energy 2013年第3期4卷 297-305页

作者： Mohsen Ghalei Monfared Zanjani Hossein Kazemi Karegar Hasan ashrafi Niaki Mina Ghalei Monfared Zanjani Department of Electrical and Computer Engineering Shahid Beheshti University (SBU) Tehran Iran.

This paper proposes a new algorithm for High Impedance Fault (HIF) detection using Phasor Measurement Unit (PMU). This type of faults is difficult to detect by over current protection relays because of low fault current. In this paper, an index based on phasors change is proposed for HIF detection. The phasors are measured by PMU to obtain the square summation of errors. Two types of data are used for error calculation. The first one is sampled data and the second one is estimated data. But this index is not enough to declare presence of a HIF. Therefore another index introduces in order to distinguish the load switching from HIF. Second index utilizes 3rd harmonic current angle because this number of harmonic has a special behaviour during HIF. The verification of the proposed method is done by different simulation cases in EMTP/MATLAB.

关键词： Fault Detection High Impedance Fault Phasor Measurement Units

Adamantinoma of the pelvic bone, a difficult diagnosis with fatal outcome

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The Chinese-German Journal of Clinical Oncology 2012年第7期11卷 425-428页

作者： Binesh F Abrisham J Sobhan M Navabii H Vahidfar M R ashrafi K Department of Pathology Yazd Shahid Sadoghi UniversityYazdIran Department of Orthopedy Yazd Shahid Sadoghi UniversityYazdIran Department of Radiology Yazd Shahid Sadoghi UniversityYazdIran Yazd Shahid Sadoghi University YazdIran Department of Hematology Yazd Shahid Sadoghi UniversityYazdIran

Adamantinoma is a primary low grade malignant bone tumor that is predominantly located in the mid-portion of the tibia. The tumor is of interest for two reasons： first, there still exists considerable dispute as to the origin of the lesion and recent reports reveal that the condition is more malignant than had previously been supposed. Although cases of adamanti- noma located to the axial skeleton have been reported, this is the first case of adamantinoma located to pelvic bone in Iran. Here we present the clinical, radiological ＆ histopathological features of a 19 year-old male with painful lesion located to the right pelvic bone which was morphologically and immunohistochemically diagnosed as adamantinoma. In general, metastasis is seen in 15%-20% of patients. The spread can occur to regional nodes, lung and infrequently to skeleton, liver and brain . Several weeks after surgery, our patient＇s condition gradually worsened. A CT-scan of abdomen revealed widespread liver metastasis and the patient died due to acute liver failure. This case demonstrates that the mortality rate from adamantinoma is not always low.

关键词： adamantinoma pelvic bone diagnosis

维普期刊数据库

Smart Building Design to Improve the Energy Consumption at an Office Room

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Smart Grid and Renewable Energy 2022年第9期13卷 209-221页

作者： Saleh Babaa Abdul Aziz Al Rawahi Angala Subramanian Abdullah Humaid Alshibli Shahid Khan Martin Khzouz Muneer Ahmed Ibrahim ashrafi Systems Engineering Department Military Technological College (Affiliated with University of Portsmouth UK) Muscat Oman

Buildings are becoming smarter as a result of a variety of advanced technologies that enable energy management, optimal space utilization, and smart surveillance for safety, among other things. Energy-efficient smart building ideas and execution are of great interest and top priority due to the building’s occupants’ misused and high-power consumption. This paper addresses the design and execution of an energy management system that includes a solar power system for generating power for the building’s needs and a PIR-based automation system for efficient power use. This project was carried out at the Military Technological College (MTC) in Muscat, in the system engineering department’s offices. This project seeks to generate power for the building’s energy needs using solar photovoltaic panels and reduce energy consumption within the office using a PIR-based automation system. The results demonstrate that after the breakeven point (the time it takes to recoup the initial investment), it can provide power to the building for another 17 years. The calculations and practical results presented in this study approve that the system is extremely helpful.

关键词： Smart Building Design Energy Consumption Solar Power Passive Infra Red Sensor

用缓发裂变中子计数技术评价铀和铀-钍混合物的分析结果

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国外铀金地质 1994年第4期11卷 369-372页

作者： R.ashrafi 刘怀梅核工业北京地质研究院伊朗 100029

本文叙述了基于原子核研究中心(NRC)研究反应堆中子通量短时间照射后的缓发裂变中子计数技术,同时测定铀扣混合铀-钍的方法。在过去几年中,在一个5MW游泳池NRC研究反应堆中安装了一个自动装置。新的分析器提供了分析测量铀和钍浓度的可... 详细信息

本文叙述了基于原子核研究中心(NRC)研究反应堆中子通量短时间照射后的缓发裂变中子计数技术,同时测定铀扣混合铀-钍的方法。在过去几年中,在一个5MW游泳池NRC研究反应堆中安装了一个自动装置。新的分析器提供了分析测量铀和钍浓度的可能性。为了同IAEA给出的保证值相比较,研究了国际原子能机构(IAEA)的几个矿石标准样品结果。在这些测量标定曲线中制备了10-2 000mg重量范围的U和Th样品。然后将一组上述样品用镉和无镉封装在功率为1MW,通量为0.8×10^(13)(中子/cm^2)/s条件下照射。

关键词：缓发中子活化分析铀铀-钍混合物

维普期刊数据库

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复合谐振器的寄生谐振及模型

宇航计测技术 1985年第S1期 144-147页

作者： K.B.Yoo H.Uberall D.ashrafi S.ashrafi 付敬欣

已经研究出几种可用于说明复合谐振器特性的三维模型。由这些模型推算出的谐振频谱(包括寄生谐振频率)与实验数据符合得很好。发现谐振器的几何形状和尺寸是引起寄生谐振的直接原因,并且与主谐振有重要的关系。已经发现谐振频率和材料... 详细信息

已经研究出几种可用于说明复合谐振器特性的三维模型。由这些模型推算出的谐振频谱(包括寄生谐振频率)与实验数据符合得很好。发现谐振器的几何形状和尺寸是引起寄生谐振的直接原因,并且与主谐振有重要的关系。已经发现谐振频率和材料性能密切相关,并对其实质进行了讨论。

关键词：谐振器共振器寄生谐振

Non-alcoholic fatty liver disease is not independent risk factor for cardiovascular disease event:A cohort study

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World Journal of Hepatology 2020年第6期12卷 323-331页

作者： Nima Motamed Hossein Ajdarkosh Maral Ahmadi Dhayaneethie Perumal G Hossein ashrafi Mehdi Nikkhah Amir Hossein Faraji Mansooreh Maadi Mahmoodreza Khoonsari Nader Rezaie Behzad Farahani Fahimeh Safarnezhad Tameshkel Mitra Ameli Mahshid Panahi Mohammad Hadi Karbalaie Niya Farhad Zamani Department of Social Medicine Zanjan University of Medical SciencesZanjan ***Iran Gastrointestinal and Liver Diseases Research Center Iran University of Medical SciencesTehran ***Iran Faculty of Science Engineering and ComputingKingston UniversityKingstonLondon KT12EEUnited Kingdom Cancer Theme SEC Faculty Penrhyn Road Kingston UniversityLondon KT12EEUnited Kingdom Department of Pulmonology Firouzgar HospitalIran University of Medical SciencesTehran ***Iran Department of Cardiology Iran University of Medical SciencesTehran ***Iran

BACKGROUND There are no consistent results between previous studies for an independent association between non-alcoholic fatty liver disease(NAFLD)and cardiovascular disease(CVD)*** To determine if there is an independent association between NAFLD and CVD *** In the present study,valid outcome data of 4808 subjects were available for phase 2 of our cohort *** subjects had been followed up for seven years from phase 1,beginning in 2009-2010 to phase 2 during *** and multiple Cox proportional models were used to determine the association between NAFLD in the primary phase of the cohort and subsequent fatal and non-fatal CVD events during *** The incidence of non-fatal CVD events in males with NAFLD was significantly higher(P=0.004)than in males without NAFLD.A positive association was demonstrated between NAFLD and non-fatal CVD events in males(Hazard ratio=1.606;95%CI:1.166-2.212;P=0.004)by the simple Cox proportional hazard model,but no independent association was detected between these in the multiple Cox *** No independent association was detected between NAFLD and *** is likely that diabetes mellitus and age may be the principle mediators in this regard.

关键词： Non-alcoholic fatty liver disease Cardiovascular disease Cohort Type 2 diabetes mellitus Risk factor Follow up

Study of the Sarough Dam Fusegates

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Journal of Civil Engineering and Architecture 2022年第9期16卷 469-477页

作者： Komeil Samet Mohammad ashrafi Department of Water Engineering and Hydraulic Structures Faculty of Civil EngineeringSemnan UniversitySemnanIran PhD.Candidate Department of Water engineeringFaculty of AgricultureUrmia UniversityUrmiaIran West Azerbaijan Regional Water Authority Iran

Dam construction industry has concerned specific attention to engineering economy,over the past years;so in this direction the topic of emergency fusegates has considered as a new technology since 1989,in all over the *** is a simple,safe,and robust structure in increasing live storage or spillway capacity and a mechanical equivalent of a fuse *** the installation of gates with different types and heights might practically be difficult,but its lower annual cost,flexibility in operation and smaller wasted water resulting from gates tipping justifies their selection as a more desirable *** this paper,the fusegates of Sarough storage dam(Googerdchi)in West-Azerbaijan province is studied an *** fusegates are installed for the first time in Iran,on Sarough dam spillway instead of radial *** installing these gates,the storage capacity of the reservoir increased up to gates overhead level for about 10 *** hydrograph in six different return periods(from 2 to 1000 years)of the dam,shows that dam capacity has increased by equipping with *** addition,a comparison discharge-time-reservoir level chart between 1st to 6th individual fusegate overthrow periods is done.

关键词： Fusegates Sarough Dam spillway capacity flood

High-density linkage map construction and identification of loci regulating fruit quality traits in blueberry

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Horticulture Research 2021年第1期8卷 2391-2403页

作者： Molla F.Mengist Hamed Bostan Elisheba Young Kristine L.Kay Nicholas Gillitt James Ballington Colin D.Kay Mario G.Ferruzzi Hamid ashrafi Mary Ann Lila Massimo Iorizzo Plants for Human Health Institute North Carolina State UniversityKannapolisNCUSA Department of Horticultural Science North Carolina State UniversityRaleighNCUSA David H.Murdock Research Institute KannapolisNCUSA Department of Food Bioprocessing and Nutrition Sciences North Carolina State UniversityRaleighNCUSA

Fruit quality traits play a significant role in consumer preferences and consumption in blueberry(Vaccinium corymbosum L).The objectives of this study were to construct a high-density linkage map and to identify the underlying genetic basis of fruit quality traits in blueberry.A total of 287 F_(1) individuals derived from a cross between two southern highbush blueberry cultivars,‘Reveille’and‘Arlen’,were phenotyped over three years(2016–2018)for fruit quality-related traits,including titratable acidity,pH,total soluble solids,and fruit weight.A high-density linkage map was constructed using 17k single nucleotide polymorphisms *** linkage map spanned a total of 1397 cM with an average inter-loci distance of 0.08 *** quantitative trait loci interval mapping based on the hidden Markov model identified 18 loci for fruit quality traits,including seven loci for fruit weight,three loci for titratable acidity,five loci for pH,and three loci for total soluble *** of these loci were detected in more than one *** loci explained phenotypic variance ranging from 7 to 28% for titratable acidity and total soluble solid,and 8-13% for ***,the loci identified for fruit weight did not explain more than 10%of the phenotypic *** also reported the association between fruit quality traits and metabolites detected by Proton nuclear magnetic resonance analysis directly responsible for these fruit quality *** acids,citric acid,and quinic acid were significantly(P<0.05)and positively correlated with titratable *** molecules showed a strong and positive correlation with total soluble ***,the study dissected the genetic basis of fruit quality traits and established an association between these fruit quality traits and metabolites.

关键词： cultivar linkage traits