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| 1 | Comparison of Parallel Kinematic Machines with Three Translational Degrees of Freedom and Linear Actuation显示文摘The development of new robot structures, in particular of parallel kinematic machines(PKM), is widely systematized by different structure synthesis methods. Recent research increasingly focuses on PKM with less than six degrees of freedom(DOF). However, an overall comparison and evaluation of these structures is missing. In order to compare symmetrical PKM with three translational DOF, different evaluation criteria are used. Workspace, maximum actuation forces and velocities, power, actuator stiffness, accuracy and transmission behavior are taken into account to investigate strengths and weaknesses of the PKMs. A selection scheme based on possible configurations of translational PKM including different frame configurations is presented. Moreover, an optimization method based on a genetic algorithm is described to determine the geometric parameters of the selected PKM for an exemplary load case and a prescribed workspace. The values of the mentioned criteria are determined for all considered PKM with respect to certain boundary conditions. The distribution and spreading of these values within the prescribed workspace is presented by using box plots for each criterion. Thereby, the performance characteristics of the different structures can be compared directly. The results show that there is no 'best' PKM. Further inquiries such as dynamic or stiffness analysis are necessary to extend the comparison and to finally select a PKM. | PRAUSE Isabel CHARAF EDDINE Sami CORVES Burkhard | 2015 | Chinese Journal of Mechanical Engineering2015,28,4: | 7 |
| 2 | A Flocking-Based on Demand Routing Protocol for Unmanned Aerial Vehicles显示文摘研究人员的某社区显示出到自治雄蜂或 UAV (无人的天线车辆) 的兴趣与无线通讯网络的来临增加了。这些网络允许 UAV 以一种特定的方式更高效地合作以便在特定的环境完成特定的任务。到那么,当保持经由收音机连接在它的组与另外的节点连接了时,每只雄蜂独立地遨游。这个连接能故意被维持一会儿抑制雄蜂的活动性。这将对涉及在来源和一个目的地之间的给定的传播的一条给定的路径的雄蜂合适。这限制能在传播过程的结束被移开,每只担心的雄蜂的活动性从其它变得再独立。在这个工作,我们建议为 UAV 的一个基于成群的路由协议叫了 BR-AODV。协议为当数据正在被播送时,维持的连接和线路为雷纳兹机制的按需的线路计算,和 Boids 利用一个众所周知的特定的路由协议。而且,自动扎根的基础车站发现机制为为即时应用程序的上下文需要的一个积极雄蜂和地面网络协会被介绍了。BR-AODV 的表演被评估,与古典 AODV 路由的相比,协议和结果证明 BR-AODV 以延期,产量和包损失超过 AODV。 | Nour El Houda Bahloul Saadi Boudjit Marwen Abdennebi Djallel Eddine Boubiche | 2018 | Journal of Computer Science & Technology2018,33,2: | 3 |
| 3 | Evaluation of computer vision techniques for automated hardhat detection in indoor construction safety applications显示文摘Construction is considered among the most dangerous industries and is responsible for a large portion of total worker fatalities. A construction worker has a probability of 1-in-200 of dying on the job during a 45-year career, mainly due to fires, falls, and being struck by or caught between objects. Hence, employers must ensure their workers wear personal protective equipment(PPE), in particular hardhats, if they are at risk of falling, being struck by falling objects, hitting their heads on static objects, or coming in proximity to electrical hazards.However, monitoring the presence and proper use of hardhats becomes inefficient when safety officers must survey large areas and a considerable number of workers.Using images captured from indoor jobsites, this paper evaluates existing computer vision techniques, namely object detection and color-based segmentation tools, used to rapidly detect if workers are wearing hardhats.Experiments are conducted and the results highlight the potential of cascade classifiers, in particular, to accurately,precisely, and rapidly detect hardhats under different scenarios and for repetitive runs, and the potential of color-based segmentation to eliminate false detections. | Bahaa Eddine MNEYMNEH Mohamad ABBAS Hiam KHOURY | 2018 | Frontiers of Engineering Management2018,5,2: | 2 |
| 4 | Spatiotemporal distribution and predictors of tuberculosis incidence in Morocco显示文摘Background:Tuberculosis(TB)is a major health problem in Morocco.This study aims at examining trends in TB in Morocco and identifying TB spatial clusters and TB-associated predictors.Method:Country-level surveillance data was exploited.Kendall’s correlation test was used to examine trends and an exploratory spatial data analysis was conducted to assess the global and local patterns of spatial autocorrelation in TB rates(Moran’s I and local indicator of spatial association[LISA])at the prefecture/province level.Covariates including living in a prefecture versus living in a province,annual rainfall,annual mean temperature,population density,and AIDS incidence were controlled.An ordinary least squares regression was thus performed and both spatial dependence and heteroscedasticity were assessed.Results:A decrease in TB incidence rate was seen between 1995 and 2014(Kendall’s tau b=−0.72;P<0.0001).However,while the period between 2005 and 2014(10 last years)was considered,TB rate remained stable and as high as 84 per 100000 population per year(95%CI:83.7-84.3).The highest incidence rates were seen in Tanger-Assilah,Fez,Tetouen-M’diq Fnidaq,Inezgane Ait Melleoul,and Casablanca.From 2005 to 2014,while TB incidence rate was stable in Fez(P=0.500),Tetouen-M’diq Fnidaq(P=0.300),Casablanca(P=0.500),Mohammadia(P=0.146),Al Hoceima(P=0.364),and Guelmim(P=0.242),an increase in TB incidence rate was seen in Tanger-Assilah(Kendall’s tau=0.49;P=0.023)and a decrease in Salé(Kendall’s tau b=−0,54;P=0.014)and Inezgane-Ait Melloul(Kendall’s tau b=−0,67;P=0.0023).TB is strongly clustered in space(P-values of Moran’s I<0.01).Two distinct spatial regimes that affect TB spatial clustering were identified(east and west).In the east,both annual rainfall(P=0.003)and AIDS(P=0.0002)exert a statistically significant effect on TB rate.In the west,only the living area(prefecture versus province)was associated with TB rate(P=0.048).Conclusions:New information on TB incidence and TB-related predictors was provided to decision-making and to further pertinent research.Association between annual rainfall and TB may be of interest to be explored elsewhere. | Mina Sadeq Jamal Eddine Bourkadi | 2018 | Infectious Diseases of Poverty2018,7,1: | 2 |
| 5 | Atmospheric photochemistry and secondary aerosol formation of urban air in Lyon,France显示文摘Photochemical aging of volatile organic compounds(VOCs)in the atmosphere is an important source of secondary organic aerosol(SOA).To evaluate the formation potential of SOA at an urban site in Lyon(France),an outdoor experiment using a Potential Aerosol Mass(PAM)oxidation flow reactor(OFR)was conducted throughout entire days during JanuaryFebruary 2017.Diurnal variation of SOA formations and their correlation with OH radical exposure(OHexp),ambient pollutants(VOCs and particulate matters,PM),Relative Humidity(RH),and temperature were explored in this study.Ambient urban air was exposed to high concentration of OH radicals with OHexp in range of(0.2-1.2)×10^12 molecule/(cm^3·sec),corresponding to several days to weeks of equivalent atmospheric photochemical aging.The results informed that urban air at Lyon has high potency to contribute to SOA,and these SOA productions were favored from OH radical photochemical oxidation rather than via ozonolysis.Maximum SOA formation(36μg/m^3)was obtained at OHexp of about 7.4×10^11 molecule/(cm^3·sec),equivalent to approximately 5 days of atmospheric oxidation.The correlation between SOA formation and ambient environment conditions(RH&temperature,VOCs and PM)was observed.It was the first time to estimate SOA formation potential from ambient air over a long period in urban environment of Lyon. | Salah Eddine Sbai Chunlin Li Antoinette Boreave Nicolas Charbonnel Sebastien Perrier Philippe Vernoux Farida Bentayeb Christian George Sonia Gil | 2021 | Journal of Environmental Sciences2021,33,1: | 2 |
| 6 | Ubiquitin: structures, functions, mechanisms显示文摘 | Cecile M. Pickart Michael J. Eddins | 2004 | BBA - Molecular Cell Research2004,,1: | 2 |
| 7 | Weighted product Hardy space associated with operators显示文摘Assuming that the operators L1,L2 are self-adjoint and e-tLi(i=1,2)satisfy the generalized Davies-Gaffney estimates,we shall prove that the weighted Hardy space H1L1,L2,w(Rn1×Rn2)associated to operatorsL1,L2 on product domain,which is defined in terms of area function,has an atomic decomposition for some weight w. | Qingquan DENG Djalal Eddine GUEDJIBA | 2020 | Frontiers of Mathematics in China2020,15,4: | 2 |
| 8 | Ondansetron is as effective as diphenhydramine for treatulent of mor- phine-indueed pruritus after cesarean deliv- ery显示文摘 | Siddik-Sayyid SM Yasbeck-Karam VG Zahr- eddine BW | 2010 | Acta Anaesthesiol Stand2010,54,6: | 1 |
| 9 | Generalized symmetric extension for size-limlted multi-rate filter banks显示文摘 | Bamberger R H Eddins S L Nuri V | 1994 | IEEE Transaction on IP1994,3,1: | 1 |
| 10 | Ubiquitin: structure, functions, mechanisms显示文摘 | Pickart CM Eddins MJ | 2004 | Biochim Biophys Acta2004,1695,13: | 1 |
| 11 | Impact resonance method for fatigue damage detection in reinforced concrete beams with carbon fibre reinforced polymer 显示文摘 | Gheorghiu Catalin Rhazi J Eddine Labossiere Pierre | 2005 | Canadian Journal of Civil Engineering2005,32,6: | 1 |
| 12 | Orexin receptor an- tagonists differ from standard sleep drugs by promoting sleep at doses that do not disrupt cognition显示文摘 | Uslaner JM Tye SJ Eddins DM | | Sci Transl Med 201 30,5,17: | 1 |
| 13 | Zebrafish provide a sensitive model of persisting neurobehavioral effects of developmental chlorpyrifos exposure: comparison with nicotine and pilocarpine effects and relationship to dopamine deficits 显示文摘 | Eddins D Cerutti D Williams P | 2010 | Neurotoxicol Teratol2010,32,1: | 1 |
| 14 | Ubiquitin:vstructures,func- tions, mechanisms显示文摘 | Pickarta C M Eddins M J | 2004 | Biochem Biophys Acta2004,1695,13: | 1 |
| 15 | Improved protection by recombinant BCG显示文摘 | Nasser Eddine A Kaufmann SH | | 0,,5: | 1 |
| 16 | AFM Study of Muhilayer Sol-gel Bax Sr1-xTiO3 thin films 显示文摘 | Ala'eddin A S Ramli N Poopalan P | 2010 | Physical Review Letters2010,3,1: | 1 |
| 17 | Ubiquitin:structure,functions, ,mechanisms 显示文摘 | Piekart CM Eddins MJ | 2011 | Biochim BiophysActa2011,1695,13: | 1 |
| 18 | Comparison between scaling-root-planing (SRP) and SRP/photodynamic therapy: six-month study 显示文摘 | Berakdar M Callaway A Eddin MF | 2012 | Head Face Meal2012,8,: | 1 |
| 19 | Electrical Properties of Metal-ferroelectric-insulator-semiconductor Structure Using BaxSr1-xTiO3 for Ferroelectric-gate Field Effect Transistor 显示文摘 | Ala'eddin A S Poopalan P | 2011 | Solid-state Electronics2011,62,1: | 1 |
| 20 | Thermal Degradation of a reactive flame retardant based on cyclotfiphazene and its blend with DGEBA epoxy resin 显示文摘 | Mustupha EI Gouri Abderrahim EI Bachiri Salah Eddine Hegazi | 2009 | Poly- mer Degradation and Stability2009,94,: | 1 |