书讯

正《阀门手册——选型》——本书由化学工业出版社于2013年1月出版发行,张清双、尹玉杰、明赐东主编。全书针对阀门用户的实际需求,在介绍了各种阀门选型基本知识的基础上,重点介绍了各种阀门的结构、技术特点、应用场合及选用原则等内容,阀门种类包括闸阀、球阀、蝶阀、截止阀、止回阀、旋塞阀、柱塞阀、隔膜阀、电磁阀、节流阀、蒸汽疏水阀、减压阀、安全阀、调节阀、放料阀、塑料阀门、陶瓷阀门以及供水管网、水     

润华集团ERP系统的澎湃力

润华集团股份有限公司是一家跨地区、跨行业的综合性大型股份制企业集团,山东省政府确定的全省首批51家现代企业制度试点单位之一.经营领域涉及汽车销售、汽车修理、配件供应、旧机动车交易、客运出租、汽车租赁、机动车拍卖、房地产开发、制药、进出口贸易、物业管理、广告企划等众多行业,并参股金融业,基本确立了以汽车服务业、药业、房地产业为支柱产业,投资、贸易、实业协调并进的发展格局.     

《现代科学仪器》征稿启事

《现代科学仪器》是在国家有关领导人和著名科学家的指导和大力支持下诞生的。它是中国科技核心期刊,是国内最重要的以介绍和评论国内外仪器为主的综合性科技期刊。读者对象为各行各业实验室、试验室、研究室应用与维护仪器的科技人员及购置与管理仪器设备的人员;从事高技术及其产品研制生产的科技人员;各级有关管理决策人员;大专院校师生等。涉及物理、化学、生物、医疗卫生、制药、农业、地矿、机械、电子、石油、化工、冶金、能源、交通、环保、建筑、轻工、商检、     

2007年中国机床工具行业十大新闻

1.中央和地方省市主要领导频繁视察机床行业企业,国家为数控机床产业发展创造了空前良好的发展环境 胡锦涛、吴邦国、温家宝、贾庆林、李长春等党和国家领导人以及辽宁、黑龙江、山东、江苏、云南、湖北、广东、陕西、浙江、天津、重庆等省市主要领导相继视察了机床工具厂和数控系统厂.各级领导频繁视察,为数控机床产业的发展创造了空前良好的发展环境.     

TNG系列多功能提取浓缩回收机组

成都永泰制药化工机械厂是专业生产制药机械、化工机械、食品机械成套设备的厂家。其生产的TNG系列多功能提取浓缩回收机组适用于中药、生化、食品等行业的常压、水煎、温浸、强循环渗漉、芳香油提取和有机溶媒回收及提取液、中药、植物、动物、食品、化工液料的浓缩。     

“全国第一届近红外光谱学术会议”在北京成功召开

由中国分析测试协会和中国石油学会石油炼制分会共同主办的全国第一届近红外光谱学术会议于2006年10月28日至30日在北京西郊宾馆的会议中心举行。来自清华大学、浙江大学、天津大学、南开大学、吉林大学、上海交通大学、西安交通大学、哈尔滨工业大学、中国农业大学、中南大学、第二军医大学、后勤工程学院、第二炮兵工程学院、海军航空工程学院、暨南大学、广西大学、首都师范大学、山东轻工业学院、中国计量学院、中科院光机所、中科院上海技术物理研究所、     

陈光祖 超制造业正在兴起

正当前,世界汽车产业正步入经济危机的复苏年代,汽车产业正酝酿着,以信息化为标志的高新产业群广泛和深入的应用,不断渗透到传统汽车产业诸要素中,促进汽车产业结构的转型升级,形成新兴的生产力,诸如新能源、云计算、大数据、3D打印技术、超级计算机、量子计算技术、微电子技术、纳米、光电、超导、激光、化合生物、复合材料、高铁技术、4G、先进军工技术和智能技术等等,都正在不断融入汽车产业中,这已成为世界汽车产业共同遵循的,科学的规律,中国     

《现代科学仪器》征稿启事

《现代科学仪器》是在国家有关领导人和著名科学家的指导和大力支持下诞生的。它是中国科技核心期刊,是国内最重要的以介绍和评论国内外仪器为主的综合性科技期刊。读者对象为各行各业实验室、试验室、研究室应用与维护仪器的科技人员及购置与管理仪器设备的人员;从事高技术及其产品研制生产的科技人员;各级有关管理决策人员;大专院校师生等。涉及物理、化学、生物、医疗卫生、制药、农业、地矿、机械、电子、石油、化工、冶金、能源、交通、环保、建筑、轻工、商检、技术监督等各项科技领域。     

两只狼的交战

一位年迈的北美切罗基人教导孙子们人生真谛。他说：“在我内心深处,一直在进行着一场鏖战。交战是在两只狼中间展开的。一只狼是恶的——它代表恐惧、生气、悲伤、悔恨、贪婪、傲慢、自怜、怨恨、自卑、谎言、妄自尊大、高傲、自私和不忠;另外一只狼是善的——它代表喜悦、和平、爱、希望、承担责任、宁静、谦逊、仁慈、宽容、友谊、同情、慷慨、真理和忠贞。     

电子万能材料试验机

电子万能材料试验机主要适合于橡胶、轮胎、胶管、胶带、鞋底、塑料、薄膜、压克力、FRP、ABS、EVA、PU、铝塑管、复合材料、防水材料、纤维、纺织、电线电缆、纸张、金属箔、带、丝线、弹簧、木材、医药包装材料、胶带等进行拉伸、压缩、撕裂、剥离等力学性能的测试、分析。     

共融机器人重大研究计划研究进展

“共融机器人基础理论与关键技术研究”重大研究计划,聚焦“刚-柔-软机构的行为顺应与可控性”、“人-机-环境多模态感知与自然交互”以及“机器人群体智能与操作系统架构”三个科学问题,主要面向智能制造、医疗康复、国防安全和学科前沿四个重点方向,实施四年来取得了长足进展,构建机器人与人、机器人与环境、机器人与机器人交互的共融机器人研究体系,推动了工业机器人、服务机器人和特种机器人领域的理论和技术发展,相关科研成果为我国高端制造、康复医疗、国防安全等国家重大需求提供了坚实的理论和技术支撑。对在该重大研究计划支持下所取得的有关共融机器人的主要研究进展进行概述,内容涵盖“与环境共融的加工制造机器人”、“与人共融的康复辅助机器人”、“机器人间共融的群体智能与操作系统”以及“共融机器人前沿：新方法、新原理和新概念”,以此给出后续的重点研究方向和建议。     

Semiautomated methods for cancellous bone histomorphometry using a general-purpose video image analysis system

Semiautomated methods are used to measure elongated, curved and complex branching profiles and isolated perimeter segments in monochrome video images with a general-purpose analysis system. These methods are used to make the major primary measurements of bone histomorphometry. Accuracy and reproducibility of the image acquisition, processing and measurement system is documented by measuring a semicircular standard of known dimensions. Semiautomated applications of the Ar/Le method for measuring areas and perimeters, and calculating lengths and widths of osteoid seams, lengths of mineralization labels and mineral apposition rate, wall width, indirect measurements of eroded, osteoclastic and osteoblastic perimeters without tracing, and measurement of mineralized or total cancellous bone area and perimeter gave values comparable to measurements of the same parameters by tracing or grid counting techniques with equal or better reproducibility and much greater efficiency. Intraindividual variation in measuring multiple bone biopsies was comparable to that reported with current standard methods. Major sources of variability for semiautomated methods were image magnification and selection of profile edges by thresholding, and sources of variability for manual methods are image magnification, numbers of orthogonal intercepts, tracing speed and accuracy of the algorithm used to measure traced pixels. Semiautomated methods are accurate, reproducible and rapid methods suitable for bone histomorphometry.     

Ashless antioxidants,copper deactivators and corrosion inhibitors: Their use in lubricating oils

This paper reviews the use of copper deactivators and iron corrosion inhibitors in lubricating oils. The auto-oxidation process is described in terms of initiation and chain propagation, branching and termination, and the primary and secondary oxidation inhibitors are described. Copper deactivators and corrosion inhibitors nature and action are discussed, and the paper also examines the applications for these additives.     

MODELING METHOD FOR PRODUCT STRUCTURE MAPPING BASED ON REVERSE SOLVING OF LOCUS AND MOTION

Aiming at the problem of structure design in reverse-design of mechanism, a structure mapping method based on reverse solving of locus and motion (RSLM) is presented. The mechanism scheme meeting the requirements of geometric and structural features is obtained through RSLM. The element instance subsets related to component are established based on the element type mapping, pair structure type mapping and design knowledge mapping between components and elements layer by layer. The assembly position mapping of elements is established based on the topological structure information of mechanism scheme, and the product modeling of structure mapping is realized. The algorithm program and prototype system of product structure mapping based on RSLM are developed. Application samples show that the method implements the integration of scheme design, assembly design and structure design, and modeling for product structure mapping based on RSLM. The feasibility of assembly is analyzed in scheme design that contributes to reducing the design error, and raising the design efficiency and quality.     

NANOIMPRINT LITHOGRAPHY TECHNOLOGY WITH AUTOMATIC ALIGNMENT

Nanoimprint lithography (NIL) is recognized as one of the most promising candidates for the next generation lithography (NGL) to obtain sub-100 nm patterns because of its simplicity, high-throughput and low-cost. While substantial effort has been expending on NIL for producing smaller and smaller feature sizes, considerably less effort has been devoted to the equally important issue—alignment between template and substrate. A homemade prototype nanoimprint lithography tool with a high precision automatic alignment system based on Moiré signals is presented. Coarse and fine pitch gratings are adopted to produce Moiré signals to control macro and micro actuators and enable the substrate to move towards the desired position automatically. Linear motors with 300 mm travel range and 1 μm step resolution are used as macro actuators, and piezoelectric translators with 50 μm travel range and 1 nm step resolution are used as micro actuators. In addition, the prototype provides one translation (z displacement) and two tilting motion(α and β ) to automatically bring uniform intact contact between the template and substrate surfaces by using a flexure stage. As a result, 10 μm coarse alignment accuracy and 20 nm fine alignment accuracy can be achieved. Finally, some results of nanostructures and micro devices such as nanoscale trenches and holes, gratings and microlens array fabricated using the prototype tool are presented, and hot embossing lithography, one typical NIL technology, are depicted by taking nanoscale gratings fabrication as an example.     

BODY PRESSURE DISTRIBUTION OF AUTOMOBILE DRIVING HUMAN MACHINE CONTACT INTERFACE

Aiming at the fatigue and comfort issues of human-machine contact interface in automo- bile driving and based on physiological and anatomical principle,the physiological and biochemical process of muscles and nerves in the formation and development of fatigue is analyzed systematically. The fatigue-causing physiological characteristic indexes are mapped to biomechanical indexes like muscle stress-strain,the compression deformation of blood vessels and nerves etc.from the perspec- tive of formation mechanism.The geometrical model of skeleton and parenchyma is established by applying CT-scanned body data and MRI images.The general rule of comfort body pressm'e distribu- tion is acquired through the analysis of anatomical structure of buttocks and femoral region.The comprehensive test platform for sitting comfort of 3D adjustable contact interface is constructed.The test of body pressure distribution of human-machine contact interface and its comparison with subjec- tire evaluation indicates that the biomechanical indexes of automobile driving human-machine con- tact interface and body pressure distribution rule studied can effectively evaluate the fatigue and comfort issues of human-machine contact interface and provide theoretical basis for the optimal de- sign of human-machine contact interface.     

机电一体化技术的现状和发展趋势

机电一体化是随着生产和技术的发展,在以机械、电子技术为主的多门技术学科相互渗透、相互结合过程中逐渐形成和发展起来的一门新兴边缘技术学科。微电子高新技术和计算机技术的迅猛发展,使工业自动化的程度大幅度提高。新的机电设备和产品将机械、电子、计算机和自动控制技术有机地结合在一起,将大幅度地提高产品的性能、质量和可靠性;提高制造技术水平,实现生产方式向柔性方向发展。目前机电一体化技术正日益得到普遍重视和广泛应用,已成为现代技术和经济发展中不可缺少的一种高新技术。由于机电一体化技术的应用而生产出来的机电一体化产品,已经渗透到了国民经济和日常生活的各个领域。主要简述机电一体化的发展背景,综合国内外现状,分析机电一体化技术的发展趋势。     

高密度封装电子设备先进热管理技术发展现状

随着基础器件材料、加工工艺以及系统集成的巨大进步,军用电子系统尺寸越来越小,功率越来越大,导致热密度不断攀升,对冷却技术的要求越来越高.为提高军事电子系统的性能和可靠性,减小其体积、重量和功耗,美国国防预先研究计划局(DARPA)积极将微电子、纳米、微流体等先进技术应用在军事电子装备的热控中,试图打破制约装备发展的热瓶颈.文中分芯片、模块和设备3个层级概述了热管理技术途径,阐述了DARPA热管理计划及其包含的具体项目,根据最新开展的芯片内/芯片间增强冷却(ICECool)项目,指出了热控技术的发展方向.     

Ion mobility mass spectrometry in the omics era: Challenges and opportunities for metabolomics and lipidomics

Researchers worldwide are taking advantage of novel, commercially available, technologies, such as ion mobility mass spectrometry (IM-MS), for metabolomics and lipidomics applications in a variety of fields including life, biomedical, and food sciences. IM-MS provides three main technical advantages over traditional LC-MS workflows. Firstly, in addition to mass, IM-MS allows collision cross-section values to be measured for metabolites and lipids, a physicochemical identifier related to the chemical shape of an analyte that increases the confidence of identification. Second, IM-MS increases peak capacity and the signal-to-noise, improving fingerprinting as well as quantification, and better defining the spatial localization of metabolites and lipids in biological and food samples. Third, IM-MS can be coupled with various fragmentation modes, adding new tools to improve structural characterization and molecular annotation. Here, we review the state-of-the-art in IM-MS technologies and approaches utilized to support metabolomics and lipidomics applications and we assess the challenges and opportunities in this growing field.     

结构特异N-糖蛋白质组学研究进展

N-连接糖基化修饰是蛋白质上常见的翻译后修饰,发生在特征氨基酸序列N-X-T/S/C(X≠P)中的天冬酰胺上.N-连接糖具有五糖核心结构,包括高甘露糖型、杂合型和复杂型等3种主要类型.N-糖基化在修饰位点上具有微观和宏观不均一性,其功能与修饰位点和N-连接糖结构对应.对蛋白质N-糖基化位点和结构特异性的精准鉴定和定量,...