包装原理与实践——英国包装研究所包装训练课程(1996秋季—1997夏季)

一、包装材料与加工1、包装目的与作用2、机械/材料之间的选择3、包装功能管理一设计、开发、质量控制4包装材料性能一纸与纸板、玻璃、金属、塑料 容器、软包装、标贴、粘合剂、装饰工艺。5、仓储与分配一减低流通成本6、材料与加工的未来趋势二、包装质量管理1、质量控制概念-公司组织系统与经营管理、 职工的挑选与培训、质量控制与保证2、文件的功能与管理一产品规格专利说明书, 设计图纸、授权书,合同等的了解、接受、修改 程序与拒绝3、各种材料规格、品质的了解。三、包装销售人员的推销技术1、包装工业的回顾与评论2‘包装工业的变化与销售的关系3、销售经理形象与要求4、销售谈判与策略四、海运危险品包装1、海运危险品等级分类一爆炸品、放射品除外。2、危险品标记3、集装箱与车辆的装货4、国内与国际海运的管理法规五、空运危险品包装1、有关酸、显影剂、溶剂、粘合剂、油墨、漂白剂、 芳香剂和香水等的空运法规。     

《振动与冲击》征稿简则

《振动与冲击》是中国振动工程学会、上海交通大学、上海市振动工程学会联合主办的反映和交流我国力学、航空、航天、造船、车辆、机械、土木建筑、水利、电力、矿山、化工、冶金、仪器仪表、海洋工程、轻工、环境保护等领域的振动、冲击和噪声方面的成果及经验的综合性学术刊物.     

《振动与冲击》征稿简则

《振动与冲击》是中国振动工程学会、上海交通大学、上海市振动工程学会联合主办的反映和交流我国力学、航空、航天、造船、车辆、机械、土木建筑、水利、电力、矿山、化工、冶金、仪器仪表、海洋工程、轻工、环境保护等领域的振动、冲击和噪声方面的成果及经验的综合性学术刊物。     

《振动与冲击》征稿简则

《振动与冲击》是中国振动工程学会、上海交通大学、上海市振动工程学会联合主办的反映和交流我国力学、航空、航天、造船、车辆、机械、土木建筑、水利、电力、矿山、化工、冶金、仪器仪表、海洋工程、轻工、环境保护等领域的振动、冲击和噪声方面的成果及经验的综合性学术刊物。     

走马观花CES2006大展侧记

一年一度的国际消费电子器材大展(CES2006)于2006年元月5～8日,在美国赌城拉斯维加隆重举行了.来自世界各地的2 500余家参展商展示了他们在音响、数字影像、电子游戏、家庭娱乐、家用网络、移动电子产品、无线通信等领域最新的产品和服务,其中著名的品牌包括佳能、卡西欧、戴尔、柯达、爱普生、富士、Google、惠普、英特尔、LG、罗技、微软、松下、菲利浦、先锋、三星、夏普、索尼、德州仪器、汤普森、东芝、XM卫星、雅虎、丹那、超傲、马克莱文森、惠威、奇力、天龙、苹果等名牌公司.来自世界110个国家的约15万人参观了展览.展会举办了199场讲座和350场专家演示,来自微软、索尼、英特尔、Yahoo!、Google、戴尔、柯达公司的主席、设计师们进行了发言和演示,展会实际上是2006年消费电子业发展的一次预演和向导.     

CES2006大展侧记

一年一度的国际消费电子器材大展(CES2006)于2006年元月5~8日,在美国赌城拉斯维加隆重举行了。来自世界各地的2500余家参展商展示了他们在音响、数字影像、电子游戏、家庭娱乐、家用网络、移动电子产品、无线通信等领域最新的产品和服务,其中著名的品牌包括佳能、卡西欧、戴尔、柯达、爱普生、富士、Google、惠普、英特尔、LG、罗技、微软、松下、菲利浦、先锋、三星、夏普、索尼、德州仪器、汤普森、东芝、XM卫星、雅虎、丹那、超傲、马克莱文森、惠威、奇力、天龙、苹果等名牌公司。来自世界110个国家的约15万人参观了展览。展会举办…     

《振动与冲击》征稿简则

正《振动与冲击》是中国振动工程学会、上海交通大学、上海市振动工程学会联合主办的反映和交流我国力学、航空、航天、造船、车辆、机械、土木建筑、水利、电力、矿山、化工、冶金、仪器仪表、海洋工程、轻工、环境保护等领域的振动、冲击和噪声方面的     

《振动与冲击》征稿简则

正《振动与冲击》是中国振动工程学会、上海交通大学、上海市振动工程学会联合主办的反映和交流我国力学、航空、航天、造船、车辆、机械、土木建筑、水利、电力、矿山、化工、冶金、仪器仪表、海洋工程、轻工、环境保护等领域的振动、冲击和噪声方面的     

不同贮藏温度对草莓呼吸强度及品质的影响

本文研究了不同贮藏温度(0℃、5℃、10℃、15℃、20℃、25℃、30℃)对草莓呼吸强度、感官评价、失重率、硬度、相对电导率、糖酸比、维生素C和色差的影响。研究表明:贮藏温度越高,草莓呼吸越旺盛,货架寿命越短,草莓30℃条件下的呼吸强度是0℃条件下的13.97倍;草莓在0℃、5℃、10℃、15℃、20℃、25℃、30℃条件下贮藏的商品寿命分别为9 d、7 d、6 d、5 d、3d、2 d、8 h。随着贮藏温度的升高,草莓的失重率、相对电导率和呼吸强度迅速升高,而草莓的感官评价、硬度、糖酸比、维生素C含量、L*、hue值逐渐降低;贮藏在0℃的草莓品质保持最好,贮藏9 d后的感官评价、失重率、硬度、相对电导率、糖酸比、Vc含量、L*和hue值分别为5.4、3.18%、11.13 N、39.05%、12.48、22.01 mg/100 g、37.84、32.81。     

计量学科名词解释 几何量测量

几何量测量是指几何尺寸、几何形状和位置的测量技术。具体的测量参数有 :长度 (包括点、线、面间的距离、轴径、孔径等 )、角度 (包括平面角、立体角、锥角等 )、几何形状 (包括直线度、平面度、圆度、圆柱度、轮廓度等 )、几何位置 (包括平行度、垂直度、倾斜度、同轴度、对称度、位置度、圆跳动等 )和表面粗糙度等。它广泛应用于国民经济各个领域 ,诸如机械、仪表、冶金、电子、石油、化工、交通、纺织、航空航天、船舶、兵器、土木建筑、水利等各个行业。几何量测量是社会生产发展的需要。最早可追溯到古埃及金字塔的建造、我国周朝井田…     

Insertion of triangulated surfaces into a meccano tetrahedral discretization by means of mesh refinement and optimization procedures

In this paper, we present a new method for inserting several triangulated surfaces into an existing tetrahedral mesh generated by the meccano method. The result is a conformal mesh where each inserted surface is approximated by a set of faces of the final tetrahedral mesh. First, the tetrahedral mesh is refined around the inserted surfaces to capture their geometric features. Second, each immersed surface is approximated by a set of faces from the tetrahedral mesh. Third, following a novel approach, the nodes of the approximated surfaces are mapped to the corresponding immersed surface. Fourth, we untangle and smooth the mesh by optimizing a regularized shape distortion measure for tetrahedral elements in which we move all the nodes of the mesh, restricting the movement of the edge and surface nodes along the corresponding entity they belong to. The refining process allows approximating the immersed surface for any initial meccano tetrahedral mesh. Moreover, the proposed projection method avoids computational expensive geometric projections. Finally, the applied simultaneous untangling and smoothing process delivers a high‐quality mesh and ensures that the immersed surfaces are interpolated. Several examples are presented to assess the properties of the proposed method.     

Certification Institutions Expected to Update and Transfer Information on Present Standards

Standards are the basis for production enterprises to organize production, ex-factory inspection, trade (delivery) and technical exchanges, product certification, quality arbitration and supervision.……     

Flow calorimeter for enthalpy increment measurements on condensed gases

A flow calorimeter for enthalpy increment measurements on condensed gases is presented. A better knowledge of the properties of the liquefied natural gas is needed, and therefore a liquid loop has been designed for our flow calorimeter. The fluid loop in the calorimeter is designed in order to avoid the two-phase region, since two phases would give compositional disturbances in the measurements. The avoidance of the two-phase region is made possible by increasing the pressure of the test fluid after the measurement section, then heating the fluid at super-critical pressure past the critical point. Finally, the fluid is throttled to the low-pressure gas state at the inlet condition of the compressor that circulates the fluid. To perform the pressure increase, a new cryogenic pump has been designed. To evaluate the new equipment, measurements were taken on liquid ethane over the temperature range 146–256 K at pressure between 0.9 and 5.1 MPa.     

Refrigerators Enter a New Era of Health Preservation Frestech initiates the establishment of China's first standard for household sterilization refrigerators

On November 30, 2007, the China Association for Standardization (CAS) held a press conference at Beijing Diaoyutai State Guest House. Leaders from the China Household Electric Appliance Research Institute, the China Household Electric Appliance Association, and the China Consumers' Association attended and made speeches.……     

Optimum-Simulation von Ernteprozessen

Zusammenfassung Bei der Gestaltung von Ernteprozessen — beispielsweise des Prozesses Mähdrusch, Körnertransport und -abnahme — als transportverbundene Fließarbeitsverfahren mit mindestens zwei verschiedenen Arbeitsmitteln gibt es einen großen Optimierungsspielraum. Solche Prozesse sind mehrstufige Bedienungsprozesse mit gemischter Anordnung der Bedienungseinrichtungen. Außerdem besitzen sie stark ausgeprägte räumliche Aspekte. Es wird vor allem gezeigt, welche Merkmale solcher Prozesse in Simulationsmodellen abgebildet sein müssen, welche Zielgrößen in Abhängigkeit von welchen Einflußgrößen unter Berücksichtigung welcher Prozeßbedingungen ermittelt werden sollten und wie der Bewertungsprozeß zur Ermittlung der gewünschten Informationen gestaltet werden muß.     

A study of centrifugal cast high boron high speed steel

In the present study a high‐boron high speed steel (HSS) roll material was designed. Many expensive alloy elements have been substituted by cheap boron alloy, and high‐boron high speed steel roll has been manufactured by centrifugal casting method. The microstructures, mechanical properties and wear resistance of centrifugal casting high‐boron high speed steel roll have been investigated by optical microscopy (OM), scanning electron microscopy (SEM), and X‐ray diffraction (XRD) analysis, hardness test, impact test and wear test. The results indicated that the solidification microstructures of high‐boron high speed steel roll consisted of M₂(B,C), (W,Mo)₂(B,C), M₃(B,C), M₂₃(B,C)₆ type borocarbides and martensite, a small amount of retained austenite. Borocarbides were continuously distributed over the grain boundary. After quenching from 1050 °C, local broken network appeared in partial borocarbides, and fine secondary borocarbide precipitated from the matrix. After tempering from 525 °C, the amount of precipitated borocarbide increased significantly. After heat treatment, the hardness of high‐boron high speed steel roll excelled 60 HRC, and its impact toughness excelled 8.0 J/cm². The single groove steel rolling amount of high‐boron high speed steel rolls increases by 500% than that of bainite cast iron roll, when the rolls are used in K₁ mill housing of bar mill.     

Thixotropy of Systems with Shear Thinning and Plastic Flow Behavior

The definition of the thixotropy is a decrease in viscosity with time in shear and a subsequent recovery of viscosity after the shear deformation is removed.We ...     

Brainstorming for ISO Strategy 2016-2020

正Responding to ISO’s appeal for survey for the to-be-developed ISO Strategy Plan for 2016-2020,SAC hosted a special workshop over the needs and comments of various fi elds on June 8 in Beijing.The workshop was attended by ISO President-elect and Ansteel General Manager Zhang Xiaogang,SAC Vice-Administrator Yu Xinli,and 30 experts from     

CNAS Passes APLAC's PTP Review

正The review group of Asia Pacific Laboratory Accreditation Cooperation(APLAC)carried out a 4-day peer review of the proficiency testing provider(PTP)for China National Accreditation Service for Conformity Assessment(CNAS)from July 28 to 31,2014.CNAS passed the PTP review with excellent performance.Two senior peer reviewers of APLAC made a comprehensive,rigorous and detailed review of CNAS’s PTP accreditation activities,and made the on-spot inspection of the review groups in Shanghai and Shenzhen respectively.