混凝土搅拌站将以绿色为主题

近日,不难发现各地的混凝土搅拌站正在逐步减少,目的是为了大力推广创建绿色环保混凝土搅拌站,淘汰一批老式的污染情况严重的混凝土搅拌站。新的搅拌站是一种能有效降噪、除粉和利用雨水与回收水进行预拌混凝土的绿色混凝土搅拌站。     

技术形态与艺术形态在产品造型设计中的应用

目的随着国际经济全球化的发展趋势,产品设计已经成为世界各国提升产品竞争力的重要手段,通过对产品造型设计的研究,解决我国目前在产品设计上存在的发展瓶颈,进而提高产品的品牌价值和技术水平与文化内涵。方法对产品的技术形态与艺术形态的造型设计进行分析探讨,从产品的技术形态与艺术形态、实用功用与时尚审美的关系、技术与艺术意识的设计应用等层面进行分析、比较,寻求产品造型设计中两者的平衡关系,进而满足现代人的需求。结论产品设计的技术形态与艺术形态,应根据产品的功用目的与产品定位进行全方位地设计思考,在实用需求与审美需求、个性表现与风格表现等方面达到设计的平衡,进而满足消费者对产品的技术内涵与时尚审美的多元化需求,以促进我国工业产品设计的全面提升与发展。     

产品设计中夸张表现手法的应用

介绍了产品设计过程中产品概念夸张、形态夸张、功能夸张以及意象夸张等表现手法,并运用实例分析夸张表现手法的应用。指出夸张表现手法的合理运用有助于设计师能力的提升,能创造出符合消费者个性及审美需求的产品。     

包装设计作品选登

该包装旨在方便消费者携带产品。以拉杆箱为创意来源,通过拉杆箱的设计方法深入理解消费者的生活形态,得出其在户外携带产品时对包装的体面需求,同时还可减少对包装袋的需求,促进环保。因此该包装创造了新的携带方式和新的价值意义,更促进了产品包装与人群之间直接互动的机会。     

包装设计作品选登

正该包装旨在方便消费者携带产品。以拉杆箱为创意来源,通过拉杆箱的设计方法深入理解消费者的生活形态,得出其在户外携带产品时对包装的体面需求,同时还可减少对包装袋的需求,促进环保。因此该包装创造了新的携带方式和新的价值意义,更促进了产品包装与人群之间直接互动的机会。     

六大趋势 聚焦新消费

正如今,消费升级之风席卷中国,国内消费者正处于从温饱型消费需求转变为改善型需求、物质型消费需求向服务型消费需求的转变过程中。伴随着经济结构的调整、中产阶级的崛起、传播方式的变化与环保意识的不断提升,快消市场进入新常态,新的消费形态正悄然而生。面对琳琅满目的大数据,如何解读并预判消费趋势,如何依据分析结果进行相应的品类调整,如何使自身产品更具市场效应,已经成为不少企业中流击水     

北京预拌混凝土搅拌站治理整合已初见成效

砂石料进“屋”，配料仓有了“吸尘器”，传送带穿起“外衣”……混凝土搅拌站可以不再是噪声扬尘污染地。日前，北京市首批22个绿色混凝土搅拌站达标站点亮相。经过3年治理，达标站点的环保水平已经领先全国，并达到发达国家水平。     

预拌混凝土绿色搅拌站的建设与管理探讨

随着社会经济的不断发展,各个地区都得到改造和建设,我国政府在建筑行业中投入了大量资金,促使混凝土行业快速发展。基于此,本文首先从花园式厂区、降噪除尘系统、废水废料回收系统等方面论述了预拌混凝土绿色搅拌站的建设;其次,从生产管理方法、标准化管理方法、信息化管理方法等方面论述了预拌混凝土绿色搅拌站的管理方法。     

家具包装的视觉传达设计

家具包装视觉传达设计是提升家具产品形象和企业形象、促进产品销售的重要手段。家具包装设计的视觉要素主要包括商标、造型、色彩、图形、文字等,家具包装设计者应综合利用这5个视觉要素,设计出符合消费者视觉审美需求和视觉消费需求的包装产品。某公司橱柜项目组"厨房板式家具包装设计"即在充分挖掘产品"环保"这一核心价值定位的基础上,以商标要素为核心,并结合图形要素、色彩要素、文字要素,突出产品"零甲醛排放"的环保特性,设计了一组家具包装方案。     

浅谈模块式混凝土搅拌站设计

混凝土的生产离不开搅拌站,混凝土的质量高低与搅拌站的性能设计密切相关。传统的混凝土搅拌站,不仅占地面积大,而且运维管理工作量大,不利于搅拌站长远发展。而模块式混凝土搅拌站,是在搅拌站的设计中融合模块化理念,既能减小占地面积,又能方便拆装作业,有利于后续运维管理,满足国家节能降耗的发展要求。该文以模块式混凝土搅拌站为核心,首先分析了原理和优点,然后指出模块式混凝土搅拌站的设计流程,最后指出设计技术要点,以供参考。     

Estimation of Parameters of Universal Distribution of Moments of Failure of Products

A method is proposed for estimating the parameters of a mixture of exponential and Weibull distributions for which the accuracy of preliminary estimates obtained by graphical analysis is refined in accordance with the criterion of maximum likelihood. The efficiency of the proposed method is supported by the results of statistical modeling.     

Evaluation of optical properties of highly scattering media by moments of distributions of times of flight of photons

A novel method for the determination of the optical properties of tissue from time-domain measurements is presented. The data analysis is based on the evaluation of the first moment and the second centralized moment, i.e., the mean time of flight and the variance of the measured distribution of times of flight (DTOF) of photons injected by short (picosecond) laser pulses. Analytical expressions are derived for calculation of absorption and of reduced scattering coefficients from these moments by application of diffusion theory for infinite and semi-infinite homogeneous media. The proposed method was tested on experimental data obtained with phantoms, and results for absorption and reduced scattering coefficients obtained by the proposed method are compared with those obtained by fitting of the same data with analytical solutions of the diffusion equation. Furthermore, the accuracy of the moment analysis was investigated for a range of integration limits of the DTOF. The moment analysis may serve as a comparatively fast method for evaluating optical properties with sufficient accuracy and can be used, e.g., for on-line monitoring of optical properties of biological tissue.     

Estimation of potentialities of methods of summation of direct measurement errors

Conventional methods for summation of direct measurement errors are considered. Conditions under which these methods provide consistent results are stated. It is proposed to utilize for characteristic of the total error, its interval estimator or the half-sum of the value obtained by adding up its arithmetic and geometric random errors.Translated from Izmeritel'naya Tekhnika, No. 4, pp. 10–12, April, 1995.     

空压机轴承箱蜗壳温度探头油封改造

由于空压机进气侧轴承箱蜗壳温度探头密封效果不好,使空压机及其后续管道受到油污染。后将温度探头的O形圈密封改为骨架油封,杜绝了轴承箱漏油问题。文章简介空压机的结构和技术参数,详细介绍了骨架油封的制作和优点。     

Characteristics of mechanical properties of materials in studies of conditions of attainment of marginal states

It is shown that conditions of attainment of marginal states in the material of structural components are formulated on the basis of analysis of force and deformation criteria of formation and development of destruction. The parameters of these criteria are data on types of structural materials, standard and special characteristics of their mechanical properties, structural forms of considered elements of the equipment, and their operating stress loading. In this case, the construction of a system of state equations for describing interrelation of current damage, external actions, and responses to them is based on the concept of calculating variations in properties of materials at all stages of the design life cycle.     

Determination of parameters of microstructural inhomogeneity of deformation of metals by the method of modeling

The article suggests a method of evaluating the microstructural inhomogeneity of deformation of metals by modeling. The method includes the measurement of deformations of metal according to meshes of a dividing grid with small base and the calculation of the distribution parameters of microdeformations in model representation. It is shown that the modeling method makes it possible objectively to evaluate the microinhomogeneity of deformation of metals independently of the chosen mesh size of the dividing grid. New structural characteristics are introduced: the base and wave of variation expressing the degree of crumbling or amalgamation of metal grains by inhomogeneity of deformation.Translated from Problemy Prochnosti, No. 7, pp. 40–44, July, 1991.     

Analysis of the rate of propagation of the wave of change of boiling modes

An approximate analytical expression is derived for the velocity of the front of the wave of change of boiling modes on a rod and on a plate. The impact of the Thomson effect and of the heater orientation in the gravity field is included. Adequate agreement is demonstrated between the derived relations and experimental data.     

水三相点复现的不确定度评定

水三相点是开尔文热力学温度的唯一基准点，也是ITS-90国际温标重要的定义固定点。因此，水三相点不确定度分析对整个温标的建立、温度量值传递起着至关重要的作用。近3年来，中国计量科学研究院研制出一系列高质量的水三相点容器，加强了水三相点的研究，为不确定度的分析提供了更为可靠的实验依据。同时，不确定度的分析也是客观评价新研制容器性能的一个重要指标。因此，根据实验结果对新研制容器所复现的水三相点进行了不确定度评定。评定结果表明，其扩展不确定度为0．16mK(k=2．69，P=0．99)。