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journal of Central South University 2019年第5期26卷 1077-1088页

作者： Abdullah A.A.A AL-RASHeD walid HASSeN Lioua KOLSI Hakan F. OZTOP Ali j. CHAMKHA Nidal ABU-HAMDeH Department of Automotive and Marine engineering Technology College of Technological Studiesthe Public Authority for Applied Education and TrainingKuwait Unité de Métrologie et des Systèmes énergétiques école Nationale d’IngénieursMonastirUniversity of MonastirTunisia College of engineering Mechanical Engineering DepartmentHail UniversityHail CitySaudi Arabia Dept.Mech.engineering Technology FacultyFirat UniversityTR-23119ElazigTurkey Department of Mechanical engineering King Abdulaziz UniversityJeddahSaudi Arabia Mechanical engineering Department Prince Sultan Endowment for Energy and EnvironmentPrince Mohammad Bin Fahd UniversityAl-Khobar 31952Saudi Arabia RAK Research and Innovation Center American University of Ras Al KhaimahP.O.Box 10021Ras Al KhaimahUnited Arab Emirates

A numerical study based on the finite volume method has been performed to study the three-dimension natural convection in a parallelogrammic top side opened cavity filled nanofluid with partially heated square at the bottom *** are obtained for different governing parameters such as nanoparticle concentration (φ) from 0 to 0.05,inclination angle of the back and front walls (α) from 5° to 75°,Rayleigh number from 10^3 to 10^5,and length of heater changer from 0.1 to *** main finding from the obtained result showed that the inclination angle and nanoparticle volume fraction affect the flow structure and enhance the heat transfer.

关键词： 3D analysis open enclosure partial heating parallelogram nanofluids

Debye's temperature and heat capacity for Sr_(0.15)Ba_(0.85)Bi_(2)Nb_(2)O_(9) relaxor ferroelectric ceramic

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journal of Advanced Dielectrics 2016年第1期6卷 1-4页

作者： A.Pelaiz-Barranco Y.Gonzalez-Abreu P.Saint-Gregoire j.D.S.Guerra F.Calderón-Piñar Facultad de Fisica-IMRe Universidad de La Habana San Lazaro y LVedadoLaHabana 10400Cuba Department of Sciences and Arts University of Nîmes 30021 Nîmes Cedex 01France Grupo de Ferroeletricos e Materiais Multifuncionais Instituto de Fisica Universidade Federal de Uberlandia.38400-902Uberlandia-MGBrazil

A lead-free relaxor ferroelectric,Sr_(0.15)Ba_(0.85)Bi_(2)Nb_(2)O_(9),was synthesized via solid-state reaction and the temperature-dependence of the heat capacity was measured in a wide temperature *** dielectric permittivity was also measured between 500 Hz and 5 MHz in the same temperature *** anomaly has been detected in the heat capacity curve for the whole temperature range covered in the present experiments,while broad peaks have been observed in the dielectric permittivity with high frequency dispersion.A typical relaxor behavior has been observed from the dielectric *** Debye's temperature has showed a minimum value near the freezing *** results are discussed considering the spin-glass model and the high frequency dispersion,which has been observed for the studied relaxor system.

关键词： Relaxors ferroelectrics heat capacity ceramics

A Local Binary Pattern-Based Method for Color and Multicomponent Texture Analysis

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journal of Signal and Information Processing 2020年第3期11卷 58-73页

作者： Yao Taky Alvarez Kossonou Alain Clément Bouchta Sahraoui jérémie Zoueu Laboratoire d’Instrumentation Image et Spectroscopie (L2IS) Institut National Polytechnique-Felix Houphou&eumlt Boigny Yamoussoukro C&ocircte d’Ivoire Laboratoire Angevin de Recherche en Ingénierie des Systèmes (LARIS) Université d’Angers Institut Universitaire de Technologie 4 Bd Lavoisier Angers Cedex France Institut des Sciences et Technologies Moléculaires d’Angers (MOLTeCH ANjOU) UMR CNRS 6200 Université d’Angers 2 Bd Lavoisier Angers Cedex 2 France

Local Binary Patterns (LBPs) have been highly used in texture classification for their robustness, their ease of implementation and their low computational cost. Initially designed to deal with gray level images, several methods based on them in the literature have been proposed for images having more than one spectral band. To achieve it, whether assumption using color information or combining spectral band two by two was done. Those methods use micro structures as texture features. In this paper, our goal was to design texture features which are relevant to color and multicomponent texture analysis without any assumption. Based on methods designed for gray scale images, we find the combination of micro and macro structures efficient for multispectral texture analysis. The experimentations were carried out on color images from Outex databases and multicomponent images from red blood cells captured using a multispectral microscope equipped with 13 LEDs ranging from 375 nm to 940 nm. In all achieved experimentations, our proposal presents the best classification scores compared to common multicomponent LBP methods. 99.81%, 100.00%, 99.07% and 97.67% are maximum scores obtained with our strategy respective

关键词： Multispectral Images Local Binary Patterns (LBP) Texture Analysis Rotation Invariance Illumination Variation Blurring Invariance

Can the Iberian Floristic Diversity withstand Near-Future Climate Change?

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Open journal of ecology 2014年第17期4卷 1089-1101页

作者： Marshall j. Heap Alastair Culham jonathan Lenoir Rosario G. Gavilán Centre for Plant Diversity and Systematics School of Biological Sciences University of Reading Berkshire UK Unité de Recherche “ecologie et Dynamique des Systèmes Anthropisés” (eDYSAN FRE3498 CNRS-UPJV) Jules Verne University of Picardie Amiens France Departamento de Biología Vegetal II F. Farmacia Universidad Complutense Madrid Spain

we assess how effectively the current network of protected areas (PAs) across the Iberian Peninsula will conserve plant diversity under near-future (2020) climate change. we computed 3267 MAXeNT environmental niche models (eNMs) at 1-km spatial resolution for known Iberian plant species under two climate scenarios (1950-2000 baseline & 2020). To predict near-future species distributions across the network of Iberian and Balearics PAs, we combined projections of species’ eNMs with simulations of propagule dispersal by using six scenarios of annual dispersal rates (no dispersal, 0.1 km, 0.5 km, 1 km, 2 km and unlimited). Mined PA grid cell values for each species were then analyzed. we forecast 3% overall floristic diversity richness loss by 2020. The habitat of regionally extant species will contract on average by 13.14%. Niche movement exceeds 1 km per annum for 30% of extant species. while the southerly range margin of northern plant species retracts northward at 8.9 km per decade, overall niche movement is more easterly and westerly than northerly. There is little expansion of the northern range margin of southern plant species even under unlimited dispersal. Regardless of propagule dispersal rate, altitudinal niche movement of +25 m per decade is strongest for northern species. Pyrenees flora is most vulnerable to near-future climate change with many northern plant species responding by shifting their range westerly and easterly rather than northerly. Northern humid habitats will be particularly vulnerable to near-future climate change. Andalusian National Parks will become important southern biodiversity refuges. with limited human intervention (particularly in the Pyrenees), we conclude that floristic diversity in Iberian PAs should withstand near-future climate change.

关键词： Biodiversity Climate Change MAXeNT Plants Portugal Spain Species Distribution Model

平坦沙地的空气动力学粗糙度变化及其物理意义

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自然科学进展 2006年第3期16卷 325-330页

作者：梅凡民 j.Rajot S.Alfaro 张小曳王涛中国科学院寒区旱区环境与工程研究所沙漠与沙漠化重点实验室中国气象科学研究院大气边界层物理和大气化学国家重点实验室北京100081 中国科学院地球环境研究所黄土与第四纪地质国家重点实验室西安710075 Laboratoire Interuniversitaire des Systèmes Atmosphèriques 西安工程科技学院环境工程与环境科学系西安710048

利用风温廓线法测定了不同大气稳定度下的空气动力学粗糙度,以跃移传感器(saltiphone)记录的瞬时最小跃移通量观测瞬时起动摩阻风速．观测数据表明:空气动力学粗糙度随着大气稳定度变化而呈现明显的变化,近中性层结下其平均值在(1．2-4... 详细信息

利用风温廓线法测定了不同大气稳定度下的空气动力学粗糙度,以跃移传感器(saltiphone)记录的瞬时最小跃移通量观测瞬时起动摩阻风速．观测数据表明:空气动力学粗糙度随着大气稳定度变化而呈现明显的变化,近中性层结下其平均值在(1．2-4．5)×10-5m之间,不稳定层结的平均值在 (0．5-1．1)×10-4m之间,稳定层结的平均值在3×10-5-2×10-5m之间,不稳定层结空气动力学粗糙度高,稳定层结的低,近中性层结介于两者之间;3种大气稳定度下跃移过程的平均空气动力学粗糙度高于无跃移过程,近中性层结无跃移过程的平均空气动力学粗糙度在1-3×10-5m之间;野外测定的每日平均起动摩阻风速在0．19-0．26 m·s-1之间变化．观测与模拟结果表明近中性层结-地表无跃移过程下测定的空气动力学粗糙度对起动摩阻风速是有效的,而非中性层结下测定的空气动力学粗糙度对起动摩阻风速对起动摩阻风速的作用不显著,这能够从物理机制上得到说明．大气稳定度虽然对起动摩阻风速影响不大,但是否影响到风蚀强度还需要进一步的研究．

关键词：沙地空气动力学粗糙度摩阻风速起动摩阻风速大气稳定度

毛乌素沙地的粉尘释放通量观测及DPM模型的野外验证

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科学通报 2006年第11期51卷 1326-1332页

作者：梅凡民 j．Rajot S．Alfaro L．Gomes 张小曳王涛中国科学院寒区旱区环境与工程研究所沙漠与沙漠化重点实验室 Laboratoire Interuniversitaire des Systèmes Atmosphèriques Universitè de Paris 12 Paris 94010France 中国气象局大气成分观测与服务中心中国气象局大气化学重点开放实验室

目前关于中国粉尘源区的释放通量观测数据很少,被经常使用的DPM粉尘释放模型在中国源区的可靠性还没有得到验证．2002年春季在毛乌素沙地开展了野外观测实验,分别观测了跃移通量、<10μm的粉尘释放通量、温度和风速梯度．观测期间平均... 详细信息

目前关于中国粉尘源区的释放通量观测数据很少,被经常使用的DPM粉尘释放模型在中国源区的可靠性还没有得到验证．2002年春季在毛乌素沙地开展了野外观测实验,分别观测了跃移通量、<10μm的粉尘释放通量、温度和风速梯度．观测期间平均摩阻风速在0．26-0．35 m．s-1之间,实测的跃移通量约在0．07～8．00 g·m-1·s-1之间,实测和模拟的跃移通量较为一致,跃移通量方程经验系数取2．61比较合适;在3次局地的粉尘释放过程中,实测的粉尘释放通量约在1～3μg·m-2·s-1之间,模拟的粉尘释放通量偏高,说明该模型在低风速条件下还需要校正．通过与前人数据的比较,发现松散的砂质土的跃移通量大于具有物理结皮的砂质土和存在大土壤团块的壤质土,说明在相同摩阻风速条件下,松散的砂质土的粉尘释放通量最大,预示中国北方粉尘的主要源地在沙漠和沙漠化的土地．

关键词：毛乌素沙地粉尘释放通量观测模型验证

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利用过程分析揭示成本管理

现代制造 2010年第25期 46-47页

作者： jüRGeN KLettI

当今,客户寻求的是优质、低价和更短的供货时间。为了完成这些"相互冲突"的指标,就有必要让生产过程更加透明。所以,对生产数据进行实时处理的制造执行系统(mes)在此大有可为。

关键词：制造执行系统反应能力企业管理者制造过程计算装置生产制造成本管理处理时间质量保障运营过程

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适用于中小型企业的开放式生产控制系统

现代制造 2010年第6期 32-34页

作者： jrg Rehage

金属加工领域中的企业于2005年做出决定,开始对业内使用的生产加工控制和生产计划管理系统进行优化改进。他们决定采用一套开放源代码的mes生产制造管理系统,因为许多标准的生产加工管理系统的控制范围大大超出了中小企业的范围,价格昂... 详细信息

金属加工领域中的企业于2005年做出决定,开始对业内使用的生产加工控制和生产计划管理系统进行优化改进。他们决定采用一套开放源代码的mes生产制造管理系统,因为许多标准的生产加工管理系统的控制范围大大超出了中小企业的范围,价格昂贵。本文从一个批量生产中小企业者的角度对这一项目的进展情况进行了报道。

关键词：制造管理系统生产控制系统生产加工开放式解决方案开放源代码集团公司生产计划管理系统数据采集系统企业资源管理系统

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mes:eRP与生产加工之间的连接

现代制造 2003年第11期 42-43页

作者： jürgen Kletti MPDV

在eRP生产管理系统与企业生产的实际管理过程中,存在着一些不尽人意之处。mes制造执行系统弥补了在各个系统之间数据传递和功能方面的不足。恰当的评判功能和技术参数支持生产加工企业进行生产过程的优化。

关键词： mes eRP 生产加工生产管理系统制造执行系统制造业

直肠应用蒿甲醚与静脉注射奎宁治疗乌干达儿童脑疟疾的随机临床研究

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世界核心医学期刊文摘（神经病学分册） 2005年第7期1卷 1-2页

作者： Aceng j.R. Byarugaba j.S. Tumwine j.K. 黄卫东 Dept. of Paediatr. and Child Health Makerere Medical School PO Box 7072 Kampala Uganda

Objective: To compare the efficacy and safety of rectal artemether with intrav enous quinine in the treatment of cerebral malaria in children. Design: Randomis ed, single blind, clinical trial. Setting: Acute care unit at Mulago Hospital, U ganda’s national referral and teaching hospital in Kampala. Participants: 103 ch ildren aged 6 months to 5 years with cerebral malaria. Intervention: Patients we re randomised to either intravenous quinine or rectal artemether for seven days. Main outcome measures: Time to clearance of parasites and fever; time to regain ing consciousness, starting oral intake, and sitting unaided; and adverse effects. Results: The difference in parasitological and clinical outco mes between rectal artemether and intravenous quinine did not reach significance (parasite clearance time 54.2 (SD 33.6) hours v 55.0 (SD 24.3) hours, P = 0.90; fever clearance time 33.2 (SD 21.9) hours v 24.1(SD 18.9 hours, P = 0.08; time to regaining consciousness 30.1 (SD 24.1) hours v 22.67 (SD 18.5) hours, P = 0.1 0; time to starting oral intake 37.9 (SD 27.0) hours v 30.3 (SD 21.1) hours, P = 0.14). Mortality was higher in the quinine group than in the artemether group ( 10/52 v 6/51; relative risk 1.29, 95%confidence interval 0.84 to 2.01). No seri ous immediate adverse effects occurred. Conclusion: Rectal artemether is effecti ve and well tolerated and could be used as treatment for cerebral malaria.

关键词：随机临床研究蒿甲醚意识恢复时间退热时间 rectal clearance intravenous 经口寄生虫学坎帕拉