检索结果-南通市图书馆

Communications and Network 2013年第3期5卷 544-548页

作者： Ana P.G.Serra arthur F.A.Battaglia Moacyr Martucci Jr. Polytechnic School University of Sao Paulo-USP Sao PauloBrazil

The communications development requires interaction between converging heterogeneous technology environment, with quality and continuity of services to remain competitive. The full implementation of the Future Internet concept implies in the necessity to operate among heterogeneous technology platforms with continuity of QoS (Quality of Service), what leads to the necessity of an innovative business model to support it and new technical mechanisms of vertical handover to ensure the QoS continuity required and expected by final users but, mainly, perceived by them. An innovative business model that requires innovative QoS continuity mechanisms must consider technical and commercial interoperation among many telecommunication services providers, nationally and internationally based. This interaction demands clear rules to be followed by every player along the telecommunication services chain,i.e., it demands a set of regulation acts to guide them and allow their viability.

关键词： Technological Convergence Business Model QoS Regulatory Acts Continuity of Services Handover Future Internet

Production Optimization of Biodiesel from Frying Oil Waste to Reduce the environmental Impacts

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Chemistry and Chemical engineering 2014年第6期8卷 621-625页

作者： Silvério Catureba da Silva Filho Thadeu Alfredo Farias Silva arthur de Queiroz e Silva Amanda Carvalho Miranda Felipe Araájo Calarge José Carlos Curvelo Santana elias Basile Tambourgi Laboratory of Processes and Quality Control Nine July University Sao Paulo 05001-100 Brazil School of Chemical engineering State University of Campinas Campinas 13083-852 Brazil

The objective of this study was to reduce the environmental impacts of used frying oil waste through the production of biodiesel. A 22 factorial planning has been used to evaluate the influences of alcohol/oil and reaction time on the biodiesel production yield. The optimal condition to produce the biodiesel has been found by use of the response surface methodology and analysis of variance to obtain the fitting model. This study was conducted in Campinas city, Brazil, where were collected the waste oil. An analysis of ecological cost also has been developed. Cooking oils collected from Campinas homes were mixed with ethanol in planned proportions （1：9, 1：7 and 1：5） and were transesterified at 60 ℃ and planned reaction times （30, 60 or 90 min）, in order to obtain biodiesel, using 0.1% NaOH as a catalyst. The results of the physical-chemical analyses demonstrated that the biodiesels obtained possessed characteristics close to those required by Brazilian standards. This fuel could be used in fleets of buses, trucks and machines, or even sold to fuel distributors, which results in a solving between US$0.8 and US$4.5 millions. Thus, Campinas would gain environmental credits and become a sustainable city.

关键词： Biodiesel ecological cost accounting factorial planning frying oil waste.

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

生态现代化理论:回顾和展望

理论学刊 2011年第7期 59-62页

作者：金书秦 arthur P.J.Mol Bettina Bluemling 农业部农村经济研究中心北京100810 瓦赫宁根大学环境政策系

生态现代化已经成为环境治理研究的主流理论,横跨经济学、社会学和管理学等多个学科,受到越来越多的关注。生态现代化的核心目标就是实现经济发展与环境退化的脱钩,它的六大假设已经或正在不同地区、不同层次被检验。生态现代化最为基... 详细信息

生态现代化已经成为环境治理研究的主流理论,横跨经济学、社会学和管理学等多个学科,受到越来越多的关注。生态现代化的核心目标就是实现经济发展与环境退化的脱钩,它的六大假设已经或正在不同地区、不同层次被检验。生态现代化最为基本的要求就是解放生态,包括两大机制:通过技术创新实现经济生态化、通过制度创新实现生态经济化。生态现代化与可持续发展的不同主要体现在对代际公平的偏好程度,以及在对未来发展的乐观或悲观态度上。生态现代化理论对于指导中国社会发展的转型具有重大意义,展望其研究命题主要包括:国家生态现代化战略、环境治理模式改革、提升企业国际竞争力等。

关键词：生态现代化转型中国可持续发展

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

黄河流域寒潮天气与凌情关系分析

黄河流域寒潮天气与凌情关系分析

中国水文科技新发展——2012中国水文学术讨论会

作者：王春青 arthur e.Mynett 张勇张芳珠黄河水利委员会水文局联合国教科文组织国际水教育学院德尔夫特科技大学

利用1951—2008年冬季（11月至翌年3月）各月气温资料,统计分析了近50 a黄河流域的寒潮天气过程,阐述了寒潮时空分布规律、变化特点、强度和影响范围。分析了寒潮天气与黄河凌情的关系及对凌情的影响,得出黄河流域寒潮天气在时间和空间... 详细信息

利用1951—2008年冬季（11月至翌年3月）各月气温资料,统计分析了近50 a黄河流域的寒潮天气过程,阐述了寒潮时空分布规律、变化特点、强度和影响范围。分析了寒潮天气与黄河凌情的关系及对凌情的影响,得出黄河流域寒潮天气在时间和空间上的分布是不均匀的,位于高纬度地区的宁蒙河段寒潮发生频率高于黄河下游,寒潮的强度也强于黄河下游,寒潮覆盖的范围也大于黄河下游;黄河流域以一般性寒潮天气最多,历史上强寒潮发生的次数非常少,除了磴口站发生过3次外,流域其他站均未发生过;20世纪80年代中期以后寒潮的活动呈现出逐步减少的趋势,冬季寒潮发生趋于平静;黄河流域50%的封河是寒潮天气造成的;冬季寒潮天气多封河天数也多;冬季寒潮过程次数多、降温幅度大、持续时间长、最低气温低时,黄河下游封河长度将较常年明显偏长。

关键词：寒潮凌情宁蒙河段黄河下游

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

开拓创新强化器官捐献的重要性

美国医学会杂志（中文版） 2006年第5期25卷 313-314页

作者： arthur J. Matas David e. R. Sutherland 李涛（译）祝学光（校） Department of Surgery University of Minnesota Minneapolis. 不详

在美国，治疗终末期肾病患者有两种选择，即透析或者肾移植。而选择行肾移植的患者又有两种供体可供选择，即活体供肾或者尸体供肾。

关键词：器官捐献活体供肾肾病患者肾移植终末期

Investigation of confocal microscopy for differentiation of renal cell carcinoma versus benign *** an optical biopsy be performed?

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Journal of Urology 2020年第4期7卷 363-368页

作者： Michael C.Phung Andrew R.Rouse Jayce Pangilinan Robert C.Bell erika R.Bracamonte Sharfuddeen Mashi arthur F.Gmitro Benjamin R.Lee Department of Urology University of Arizona College of MedicineArizonaUSA Department of Medical Imaging University of Arizona College of MedicineArizonaUSA Department of Pathology University of Arizona College of MedicineArizonaUSA Ringgold Standard Institution Aminu Kano Teaching HospitalKanoNigeria Biomedical engineering University of Arizona College of MedicineArizonaUSA

Objective:Novel optical imaging modalities are under development with the goal of obtaining an“optical biopsy”to efficiently provide pathologic *** such modality is confocal microscopy which allows in situ visualization of cells within a layer of tissue and imaging of cellular-level *** goal of this study is to validate the ability of confocal microscopy to quickly and accurately differentiate between normal renal tissue and ***:Specimens were obtained from patients who underwent robotic partial nephrectomy for renal *** of suspected normal and tumor tissue were extracted from the excised portion of the kidney and stained with acridine *** stained samples were imaged on a Nikon e600 C1 Confocal *** samples were then submitted for hematoxylin and eosin processing and read by an expert pathologist to provide a gold-standard diagnosis that can later be compared to the confocal ***:This study included 11 patients,17 tissue samples,and 118 confocal *** the 17 tissue samples,10 had a gold-standard diagnosis of cancer and seven were *** 118 confocal images,66 had a gold-standard diagnosis of cancer and 52 were *** confocal images were used as a training set to train eight *** observers were asked to rate the test images on a six point scale and the results were analyzed using a web based receiver operating characteristic curve *** average accuracy,sensitivity,specificity,and area under the empirical receiver operating characteristic curve for this study were 91%,98%,81%,and 0.94 ***:This preliminary study suggest that confocal microscopy can be used to distinguish cancer from normal tissue with high sensitivity and *** observers in this study were trained quickly and on only six *** expect even higher performance as observers become more familiar with the confocal images.

关键词： Renal cell carcinoma Confocal microscopy Optical biopsy

evaluation at the Level of Health Facilities, of the Protective efficacy of LLINs in Children under 5 Years Old from Localities of Low and High Resistance of Vectors to Pyrethroid Insecticides in Benin in West Africa

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Infectious Diseases 2022年第1期12卷 57-73页

作者： Tokponnon Tatchémè Filémon Ossè Razaki arthur Sovi Wakpo Abel Hounto Ogouyémi Aurore Sissinto Yolande Adechoubou Alioun Houansou Télesphore Oke Mariam Kinde-Gazard Dorothée Massougbodji Achille Akogbeto Martin Centre de Recherche entomologique de Cotonou (CReC) Cotonou Benin Ministry of Health Cotonou Benin Centre Béninois de le Recherche Scientifique et de l’Innovation Cotonou Benin ecole Polytechnique d’Abomey-Calavi Université d’Abomey-Calavi Abomey-Calavi Bénin ecole de Gestion et d’exploitation des systèmes d’élevage Université Nationale d’Agriculture Kétou Benin Faculté des Sciences de la Santé de l’Université d’Abomey Calavi Cotonou Benin National Malaria Control Programme Cotonou Benin World Health Organization Cotonou Benin

Context: The resistance to pyrethroids in malaria vectors continues to grow in Africa and could therefore compromise or reduce substantially the effectiveness of LLINs in preventing malaria. It is therefore of paramount importance to evaluate the protective efficacy of LLINs in children sleeping in areas of vector resistance to insecticides in order to draw lessons for future interventions. This study assesses the effect of the use of LLINs on malaria morbidity in clusters of low and high resistance of vectors to pyrethroids. Methods: This is a cross-sectional case-control study with one control for one case that was conducted in the communes of Kétou, Ifangni, Kétou, and Pobè in the Plateau department of southern Benin. The use of LLINs and malaria morbidity was measured and compared in children from clusters of low and high vector resistance to insecticides. In each commune, 30 cases and 30 controls were recruited for a total of 240 children under 5 years of age from villages with low and high insecticide resistance. Results: According to the localities of origin of the children, of all parents of children surveyed, 169 (70.4%) asserted the children slept under an LLIN the day before they arrived at the health center. This rate represents 70.8% (85 children) among the cases and 70.0% (84 children) among the controls without significant difference (p = 0.8). The use of LLINs the day before the survey, the frequency of their use during the two weeks preceding the day of the survey, their availability at the household level, the use of other tools for protection against mosquito bites are the same in the two groups of children (cases and controls) (p > 0.05) as well in low and high resistance villages. On the other hand, the parasite prevalence, the splenomegaly and the geometric means of the parasite densities, are significantly higher in the cases than in the controls (p Conclusion: The evaluation of epidemiological indicators in children under five years old at th

关键词： Case-Controls LLINs Malaria Morbidity Pyrethroids Resistance Benin

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

叔本华文集生命与意志

Transcriptome analysis of the <i>Tityus serrulatus</i>scorpion venom gland

1997年

作者：（德）叔本华（arthur Schopenhauer）任立潘宇编译

其他题名：生命与意志

ISBN: (纸本)7800828190

其他题名：生命与意志

关键词：叔本华,A. 1788~1860 哲学文集

来源：汇雅图书（南通市图书馆... 评论

在线全文

汇雅图书（南通市图书馆）

学校读者我要写书评

暂无评论

Open Journal of Genetics 2012年第4期2卷 210-220页

作者： erika R. Alvarenga Thaís M. Mendes Bárbara F. Magalhaes Flávia F. Siqueira arthur e. Dantas Tatiana M. Barroca Carolina C. Horta evanguedes Kalapothakis Departamento de Biologia Geral Instituto de Ciências Biológicas Universidade Federal de Minas Gerais Belo Horizonte Brazil

The Tityus serrulatus scorpion is considered the most dangerous scorpion in Brazil and is responsible for several cases of human envenomation annually. In this study, we performed transcriptome profiling of the T. serrulatus venom gland. In addition to transcripts with housekeeping functions, such as those related to protein synthesis, energy supply and structural processes, transcripts from thirty-five families of venom peptides or proteins were identified. These transcripts included three new complete sequences of toxins and more than a dozen putative venom gland proteins/peptides. The venom gland transcriptome profile was verified by comparison with the previously determined proteomic profile. In conclusion, this transcriptome data provides novel insights into the putative mechanisms underlying the venomous character of T. serrulatus. The collected data of scorpion transcripts and proteins/peptides described herein may be an important resource for identifying candidate targets of molecular therapies and preventative measures.

关键词： Scorpions Antimicrobial Peptides Neutoxins Venom Glands Brazilian Yellow Scorpion

Time elapsed from AML Diagnosis to Induction Chemotherapy Affects Overall Survival

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Cancer Therapy 2013年第5期4卷 957-960页

作者： Luis arthur Flores Pelloso Sandra Serson Rohr Mihoko Yamamoto Maria de Lourdes LFerrari Chauffaille Section of Hematology and Blood Transfusion Department of Clinical and Experimental OncologyFederal University of Sao Paulo(UNIFESP-EPM)Sao PauloBrazil Pharmacovigilance Pharmaceutical Product DevelopmentInc.Sao PauloBrazil.

We aimed to study the effect of elapsed time from AML diagnosis to treatment (TDT) on OS in a group of patients from public Hospital in Brazil. 41 AML (23 M, 18 F, 41 yrs, 18 - 84 yrs, from 2001 to 2004). There were 38 de novo AML and 3 secondary, median TDT was 6 days (range 1 - 82 d);the young ones?were treated earlier than old ones (TDT 4 days vs 11, p = 0.07). Longer TDT (>10 d) was associated with worse CR rates (p = 0.02) and OS (p = 0.04). When patients were categorized into TDT from 1 - 4 d (I) vs >5 (II), those from I presented better OS than II (p = 0.004). When TDT was longer than 7 days OS decreased even more. Hb was higher in patients with TDT I vs II (8.3 vs 7.5 g/dL, p = 0.03) but WBC (p = 0.34) and platelet count (p = 0.75) were not different. Patients with TDT of 10 d were younger than TDT > 10 d (median age 41 vs 70 yrs, p = 0.001). The OS was 15.1% in 2 yrs and 8.6% in 7 yrs. Our data suggest longer TDT, when analyzed continuously, predicted for lower CR rates and OS rates.

关键词： Acute Myeloid Leukemia Karyotype Time to Induction elderly AML Prognostic Factors