检索结果-南通市图书馆

Surface Finish Evaluation of AISI P100 Steel after Grinding with MQL Technique with Different Flow Rates

Journal of Mechanics Engineering and Automation 2020年第2期10卷 60-65页

作者： Bruno Souza Abrão Mayara Fernanda Pereira Cleudes Guimarães Lurian Souza Vieira da Silva Rodrigo deSouza Ruzzi Rosemar Batista da Silva Eduardo carlos Bianchi Alisson Rocha Machado School of Mechanical Federal University of UberlandiaUberlandia/MGCEP 38.408-208Brazil School of Engineering São Paulo State UniversityBauru/SPCEP 17.033-360Brazil Mechanical Engineering Graduate Program Pontifícia Universidade Católica do Paraná(PUC-PR)R.Imaculada Conceição1155Bairro Prado VelhoCEP 80215-901Curitiba/PRBrazil

Grinding operation is a finishing process often employed when high precision and narrow geometric tolerances are *** requirements can be achieved only if cutting conditions are properly selected,especially the cooling-lubrication *** general,grinding is performed in presence of cutting fluid,however,due to the environmental impacts and costs of the conventional coolant delivery technique(flow rates from 4 L/min to 300 L/min),alternative cooling-lubrication techniques have been developed on restriction of the coolants *** the several techniques,MQL(minimum quantity of lubricant)technique has received special attention from machining users because of its advantages in terms of surface quality of workpiece and drastic reduction in use of *** this context,this paper evaluated the performance of the MQL technique as compared to the flood coolant in peripheral surface grinding of AISI P100(VP100)steel with conventional aluminum oxide grinding wheel in relation to the surface roughness(Ra and Rz).Input parameters tested were equivalent chip thickness(0.09μm,0.18μm and 0.27μm)and flow rate of the cutting fluid(60 mL/h,150 mL/h and 240 mL/h)of the MQL *** showed that the grinding with MQL technique provided lower surface roughness values compared to conventional flood cooling,especially when machining under the intermediary cutting ***,with exception of heq of 0.09 m,the MQL technique resulted in lower values of Rz parameter as compared to the conventional coolant technique,regardless of the flow rate tested.

关键词： Grinding AISI P100 steel MQL technique equivalent chip thickness surface roughness

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Diagnostic Value between 1984 and 2018 of Transrectal Biopsy Guided by Ultrasonography after Radical Prostatectomy

引用

Journal of Pharmacy and Pharmacology 2019年第8期7卷 459-472页

作者： Luiz carlos de Araújo Souza Vinícius Carvalhêdo Cunha Hugo Oliveira de Figueiredo Cavalcanti Joao Ricardo Alves Grimar de Oliveira Paula Sandra Lúcia Branco Mendes Coutinho Undergraduates of Medicine in the University Center of Brasilia (UniCEUB) Physician Anatomopathologist by Hospital Base of the Federal District (HBDF) Physician Urologist of the Clinical Body of the Hospital Base of the District Federal and Urocentro (HBDF) Physician Urologist by Hospital Base of the Federal District (HBDF) Physician Anatomopathologist and Head of the Department of Cytopathology and Anatomical Pathology of the Hospital Base of the Federal District (NUCAP-HBDF)

Objectives—to determine correlation between GSs(Gleason scores)on needle biopsy and RP(radical prostatectomy),evaluating diagnostic tests on biopsy and RP within the last years,between 1984 and ***—analysis of 100 patients,diagnosed with PCa(prostate cancer)needle biopsy using 18-gauge needle,who underwent RP with lymphadenectomy and for which preoperative and postoperative GSs were *** group analysis used three categorization schemes for differentiation:mild,moderate and poor for the whole group and we determined SE(sensitivity),SP(specificity),PVPR(positive predictive value),negative predictive value and ***—we found that 42%of the patients had no changes between GS on biopsy and prostatectomy,while 20%were overgraded and 38%undergraded by needle *** of+1 point in GS(32%)or-1 point(17%)was the most *** patients were classified as moderately differentiated by biopsies(78 and 35%in scheme 1 and 2 or 3,respectively),while 43%of patients received an intermediate differentiation *** accuracy varied from 44 to 76%for the analysis of all three ***—there are differences in correlation between GS on biopsy and on surgical specimen,and Gleason’s graduation also depends on the experience of the *** have shown that sextant biopsies using 18-gauge and a same group of pathologists showed acceptable concordance values(42%)between the GS on biopsy and prostatectomy.

关键词： PCa transrectal biopsy guided by ultrasonography RP PSA(prostate specific antigen)

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

固体废弃物处置

引用

城市垃圾处理技术 2010年第1期 26-30页

作者： Riitta Pipatd[芬兰] Chhemendra Sharma[印度] Masato Yamada[日本] Joao Wagner Silva Alves[巴西] Qingxian Gao[中国] GH．SabinGuendhou[贝宁] Matthias Koch[德国] carlos Lopez Cabrera[古巴] Katarina Marec kova[斯洛伐克] Hans Oonk[荷兰] Elizabeth Scheehle[美国] Alison Smith[英国] Per Svardal[挪威] Somia Maria Manso Vieira[巴西]

《2006年IPCC国家温室气体清单指南》（第5卷废弃物第三章）

关键词：废弃物处置固体温室气体 IPCC

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Performance Evaluation of a Markovian Policy for Macro/Femto User Allocation Considering Aspects of QoS, QoE and Energy Efficiency

引用

通讯和计算机（中英文版） 2014年第5期11卷 460-468页

作者： Igor da Penha Natal Jorge Amaro de Sarges Cardoso Marcelino Silva da Silva Jose Jailton Henrique FerreiraJunior Adamo Lima de Santana Diego Lisboa Cardoso carlos Renato Lisboa Frances Laboratory of High Performance Networks Planning-LPRAD Federal University of Para-UFPA Belem PA 66075-110 Brazil

The advancement of wireless networks offers mobile users a diversity connectivity options, but the choice of the best connection should consider classics QoS aspects and, with increasing multimedia applications, should also consider QoE metrics. Another important parameter to choose the best connection is the energy efficiency by reducing the battery consumption of the devices and reducing CO2 emissions (green network). This paper validates a Markovian policy for distribution of user load balancing in femtocell/macrocell networks considering QoS/QoE and energy consumption providing quality for multimedia applications. The results obtained by simulation proved the benefits.

关键词：服务质量用户分配马尔可夫绩效评估二氧化碳排放量多媒体应用飞秒微距

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Descriptive Study:Congenital Malformations in Pediatric Patients of a Public Maternity Hospital of the City of Manaus,Amazonas

引用

Journal of Pharmacy and Pharmacology 2019年第4期7卷 198-206页

作者： Cleiton Fantin Denise Corrêa Benzaquem Marcelo Lasmar Santos carlos Augusto da Silva Araújo Júnior Lilian Barroso Carvalho Natanael Martins Gomes Larissa Nascimento Souza Gabriela Bentes Sousa Laboratory of Cytogenetics State University of Amazonas Manaus Amazonas Brazil

The Pan American Health Organization(PAHO)defines congenital malformation as any functional or structural anomaly in the development of the fetus,due to factors originating before birth,whether genetic,environmental or *** aim of the present study was to identify the frequency of malformations,the type of congenital malformations and to correlate this with risk factors in live-born infants,using SLB *** data were collected through consultation of the medical records of live-born infants of the Balbina Mestrinho Maternity Hospital,15,621 live births were reported,of which 248(1.58%)presented congenital *** was a higher prevalence of malformations among live-born males(49.7%),with Apgar≥7 at the first and fifth minute,gestational age ranging from 37-41 weeks,with 46%being born with appropriate weight between 3,000-4,000 *** association of two or more defects was observed in 38.7%of the total cases and isolated anomalies in 67.3%,with predominance of alterations of the digestive system(26.3%),followed by malformations of the musculoskeletal system(21.2%),nervous system(20.2%)and cleft lip/cleft palate(9.1%).The results presented here may guide strategic actions to improve care for families of people with congenital malformations.

关键词： Congenital abnormalities epidemiological inquiry prevalence newborn

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Edible Seeds and Nuts Grown in Brazil as Sources of Protein for Human Nutrition

引用

Food and Nutrition Sciences（食品与营养科学） 2012年第6期

作者： Jullyana B. Freitas Daniela C. Fernandes Ludmila P. Czeder Jean carlos R. Lima Amanda G. O. Sousa Maria Margareth V. Naves

来源：评论

学校读者我要写书评

暂无评论

初创公司的另一面：价值破坏者

引用

中欧商业评论 2015年第10期 48-51页

作者：安东尼奥·达维拉(Antonio Davila) 乔治·福斯特(George Foster) 何晓斌卡洛斯·清水(carlos Shimizu) 王玉洁西班牙IESE商学院斯坦福大学商学院复旦大学管理学院

初创公司创造大量收益和工作岗位，但破坏性也在同步发生。

关键词：公司破坏者价值工作岗位破坏性

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

古琦总部意大利米兰

引用

世界建筑导报 2018年第5期33卷 88-91页

作者： alessandra bertoli silvia calzetti erica cazzaniga davide fascione niccolò genesio gianluca iannotta luca lazzerotti alessandro leanti mauro mandelli alessandro marchesetti gianni mollo carlos noriega enrico pellegrini paola sarcoli salvatore seggio federico simonetti jenny spagnolatti santiago trujillo beatrice valle yun xiao anna zauli andrea martiradonna(摄) piuarch

新古琦总部以20世纪20年代的Caproni工厂改造而成。主经过翻新和重建工程，这座老旧工厂变身为著名时装品牌古琦在米兰的新办公大楼。涵盖办事区域、展厅、时装秀区、制图工作区、食翻新。设计为规则形状，采用模块化结构开间。废弃旧... 详细信息

新古琦总部以20世纪20年代的Caproni工厂改造而成。主经过翻新和重建工程，这座老旧工厂变身为著名时装品牌古琦在米兰的新办公大楼。涵盖办事区域、展厅、时装秀区、制图工作区、食翻新。设计为规则形状，采用模块化结构开间。废弃旧厂房中裸露的砖块棚顶，借助新的空间布局，实现了内外无缝互动。

关键词：米兰意大利工厂改造模块化结构重建工程办公大楼时装品牌空间布局

来源：

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

Oral Manifestations of Chloroquine and Hydroxychloroquine: Differential Diagnoses

引用

Open Journal of Stomatology（口腔学期刊） 2020年第11期

作者： Samuel Rocha França Renan Ribeiro Benevides carlos Aragão Martins Ariana Vasconcelos Aragão Filipe Nobre Chaves Denise Hélen Imaculada Pereira de Oliveira Marcelo Bonifácio da Silva Sampieri

来源：评论

学校读者我要写书评

暂无评论

Humidity Diffusion on Jute/Polyester Laminated Composites and Its Effects on Mechanical Properties

引用

材料科学与工程（中英文B版） 2021年第4期11卷 138-143页

作者： Rafael Pacheco Evangelista Victor Antunes Silva Barbosa Larissa Rocha Reis Peter Menezes dos Reis Jr. carlos Alberto França Jr. Mirtânia Antunes Leão Sandro Fábio César Academic Department of Mechanical Technology Federal Institute of EducationScience and Technology of BahiaSalvador 40301-015Brazil Polytechnic School Federal University of BahiaSalvador 40210-630Brazil

Jute is a natural fiber widely used as reinforcement in composites due to its high tensile strength and stiffness,but they can easily absorb water and have their physical properties *** water absorption properties of jute/polyester composites are evaluated according to ASTM D 570 and the effect of humidity in the composite mechanical behavior is also *** composite showed a pseudo-Fickian behavior and gained 13.37%in weight after the *** also lost tensile strength and elasticity modulus,and increased its specific *** electron microscope images showed that wet specimens were more subject to cracks,voids and fiber pullout than dry *** produced by water diffusion in composite and polymer plasticization,added to breakdown in the fibers’cellulosic structures,justify the change in mechanical properties due to water absorption.

关键词： Natural fiber reinforced composites(NFRCs) jute fiber water absorption polyester composites diffusion in composites.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：