论日用陶瓷的细节设计

历史发展到今天,日用陶瓷以它独有的表现丰富着我们的生活,随着现代人们生活水平的提高和科学技术的发展,人们对生活品质有了更高的要求。日用陶瓷的细节设计是陶瓷产品中一个重要的方面,一个好的产品往往部是靠细节取胜的。本文从我国日用陶瓷设计的现状,日用陶瓷细节设计的重要性以及如何对日用陶瓷细节设计等方面阐述了日用陶瓷细节设计的观点。     

论日用陶瓷的细节设计

历史发展到今天,日用陶瓷以它独有的表现丰富着我们的生活,随着现代人们生活水平的提高和科学技术的发展,人们对生活品质有了更高的要求。日用陶瓷的细节设计是陶瓷产品中一个重要的方面,一个好的产品往往都是靠细节取胜的。本文从我国日用陶瓷设计的现状,日用陶瓷细节设计的重要性以及如何对日用陶瓷细节设计等方面阐述了日用陶瓷细节设计的观点。     

芬兰日用陶瓷的设计风格

日用陶瓷的发展是现代陶瓷艺术发展的重要内容之一,而日用陶瓷的设计已成为日用瓷发展的重要内容,因此把设计作为主线,对芬兰日用陶瓷的设计现状进行研究,从芬兰日用陶瓷设计现状形成背景,形成原因的研究中探寻芬兰日用陶瓷设计中之所长,为中国日用陶瓷的发展予以有益的借鉴.     

论景德镇日用陶瓷产品形态开发

从景德镇日用陶瓷产品的现状出发,针对日用陶瓷形态开发中的相关问题进行研究探讨,提出了日用陶瓷形态开发的具体方法,从材料、技术和设计三个方面,对日用陶瓷形态开发提出了一些见解,为未来景德镇日用陶瓷创新发展提供一条新路。     

芬兰日用陶瓷的设计风格

日用陶瓷的发展是现代陶瓷艺术发展的重要内容之一，而日用陶瓷的设计已成为日用瓷发展的重要内容，因此把设计作为主线，对芬兰日用陶瓷的设计现状进行研究，从芬兰日用陶瓷设计现状形成背景、形成原因的研究中探寻芬兰日用陶瓷设计中之所长，为中国日用陶瓷的发展予以有益的借鉴。     

浅析现代日用陶瓷产品造型的情感化设计

造型是日用陶瓷产品存在的基本形式,决定着功能效用、材料技术、形式美感等各方面的问题。本文通过简要研究日用陶瓷产品造型的情感化设计,提出了情感化设计是日用陶瓷产品设计的主流思维趋势,对于陶瓷产品的优化设计具有重要的意义,也提出了设计师面对这样的潮流应该如何进行日用陶瓷产品造型的情感化设计。     

日用陶瓷人性化设计进程与解析

人性化设计是日用陶瓷设计中的极重要方面,是适应人的生理与心理需求所作的设计。自古以来日用陶瓷都存在着大量的人性化设计因素,当代日用陶瓷要尽量做到人性化设计,体现人文关怀。     

浅谈当下日用陶瓷设计与创新

当下的陶瓷艺术设计这一领域,主要包括现代陶艺创作和日用陶瓷设计两个方面,两者的本质特点、发展水平和发展方向有很大的不同,因此本文就日用陶瓷设计行业的发展现状以及日用陶瓷的设计创新进行了研究。     

生活、科技与陶瓷产品设计

从生活和科学技术两个方面,阐述了日用陶瓷设计的发展规律。人类始终围绕着自身的生活习俗,不断改进使用的日用陶瓷器具;与此同时随着现代科学的发展,现代科学技术对陶瓷设计产生了积极作用。在现代日用陶瓷设计的过程中,必须确立以生活为日用陶瓷设计源泉的设计思想,树立以现代科学技术为日用陶瓷设计原则的设计观念。     

现代日用陶瓷的自主创新——日用陶瓷的人性化设计

在全球经济一体化的进程中,如何增强我国日用陶瓷企业产品的市场竞争力,找到一条适合企业自主创新,又能发挥陶瓷产业的传统优势的途径,是我们面临十分迫切的任务。本文从日用陶瓷基本造型设计到日用陶瓷表面质感处理等方面对产品人性化设计要素进行了较详细的论述。并结合设计优秀的日用陶瓷进行评价,力求将人性化的理念贯彻到日用陶瓷产品设计备程序中。使日用陶瓷具有一种可让人能感知到的亲和力。     

Effect of molecular weight on two smectic polyesters

The liquid crystalline transitions of two kinds of smectic polyesters with different molecular weights were investigated by DSC, polarized microscopy and X-ray diffraction. The molecular weight affects the transitions significantly for these two kinds of polyesters. With a high enough molecular weight, both poly (pentamethylenep,p-bibenzoate) and poly(hexamethylenep,p-bibenzoate) exhibit an enantiotropic smectic phase, but the two endothermic transition peaks of the DSC heating curve seem to overlap. The polyesters tend to exhibit a monotropic smectic phase as the molecular weight decreases. From the DSC cooling curve, the isotropic-smectic transition can be seen more clearly. As the molecular weight decreases, the smectic order decrease significantly. The molecular weight affects the transitions in a different way for these two different kinds of polyesters.     

衣架式挤出模的流动模型分析及其简化设计的容许条件

从理论上分析了衣架式挤出模的两个流动模型,即熔体在扇形区内等压线平行于模唇(PIPDO)模型和任一流动路径上熔体的压力损失均相等(PLFPE)模型,并证明了这两个流动模型的等效关系。考虑到"蛤壳现象"对挤出模流动均匀性的影响,提出了挤出模简化设计的容许条件。     

Searching sequence space: two different approaches to dihydrofolate reductase catalysis

There are numerous examples of proteins that catalyze the same reaction while possessing different structures. This review focuses on two dihydrofolate reductases (DHFRs) that have disparate structures and discusses how the catalytic strategies of these two DHFRs are driven by their respective scaffolds. The two proteins are E. coli chromosomal DHFR (Ec DHFR) and a type II R-plasmid-encoded DHFR, typified by R67 DHFR. The former has been described as a very well evolved enzyme with an efficiency of 0.15, while the latter has been suggested to be a model for a "primitive" enzyme that has not yet been optimized by evolution. This comparison underlines what is important to catalysis in these two enzymes and concurrently highlights fundamental issues in enzyme catalysis.     

Identification of cantharidin in false blister beetles (Coleoptera,Oedemeridae) from florida

Cantharidin, a potent vesicant and antifeedant, is identified for the first time in two oedemerid beetles from the western hemisphere. Amounts of the substance per beetle were found to range from 2 to 7 g inHeliocis repanda and from 15 to 35 g inOxycopis thoracica. Females had two to three times more cantharidin than males of the same species. Cantharidin loads of these beetles are sufficient to irritate human skin.     

Hardening of St. 3 Steel by Shock‐Wave Action

A method for studying the strength characteristics of multiphase media based on construction of microhardness histograms is developed. It is shown that for St. 3 steel, the microhardness histograms are divided into two groups based on the type of high explosive used: histograms with one maximum and those with two maxima. Using the method proposed, we determined the contribution of zones consisting mainly of ferrite and pearlite grains and zones of multiple distortions to hardening of St. 3 steel. The behavior of these zones under annealing, various pulse actions, and longterm storage is studied. It is shown that under shockwave action, zones with predominant pearlite and ferrite grains are hardened synchronously.     

Contact-Damage Behavior of Textured and Random Alumina Ceramics under Hertzian Indentation

Two alumina ceramics with different microstructures were prepared by tailoring the processing conditions. In one of them, elongated alumina grains were aligned parallel to each other ("textured" material), whereas in the other, the elongated grains were uniformly distributed ("random" material). Hertzian indentation was performed on these two materials. The results showed that, although both materials exhibited a diffuse damage zone rather than typical cone cracks, the extent of damage in the textured material is significantly less than that in the random material. The difference in damage behavior between these two materials was interpreted with the aid of the contact-stress field. A new microstructural design method for improving contact-damage resistance is suggested, based on the present results.     

Methane oxidation over PdO x : on the mechanism for the hysteresis in activity and oxygen content

A conceptual picture is developed to explain the peculiar kinetic features of methane oxidation over supported Pd catalysts (observed by several investigators), notably the hysteresis in activity accompanying temperature cycles. Experiments were performed with supported Pdcatalysts to illustrate these features. The activity hysteresis is closely coupled with a hysteresis in oxygen content. The latter is in turn attributed to the properties of the PCT-diagram of the involved three-phase system; gas phase O₂ and the two solid phases, Pd and PdO_x. The two main ingredients in the mechanism are: (i) the so-called absorption and decomposition plateau pressures for the O₂-Pd-PdO _x system are different, i.e., show a hysteresis, (ii) these pressures are not independent ofx, but increase with increasing oxygen content. Both features are deviations from the ideal three-phase system and are frequently observed for H₂-metalmetal hydride systems.     

Zirconium and Ebonex® as cathodes for sulphite ion oxidation in sulphuric acid

The electrochemical behaviour of zirconium metal and Ebonex^® cathodes during the electrolysis of sulphite ions in sulphuric acid, at temperatures from 20 to 90 C, is reported. The inactivity of these materials for the reduction of sulphite ions to sulphur is demonstrated, making the undivided cell oxidation of sulphite ions to sulphuric acid, at concentrations greater than 3.0 mol dm^–3, a viable process. The use of these two cathodes materials in conjunction with lead dioxide-coated and palladium oxide-coated anodes for sulphite ion oxidation is described. Linear sweep voltammograms, chronopotentiometry and batch electrolysis data are presented for sulphite ion oxidation and demonstrate the concept of an undivided electrolysis for the oxidation of sulphur dioxide in sulphuric acid.     

欧盟压力管道标准EN13480与我国对应规范的比较

通过将《压力管道规范工业管道》与EN13480在设计、材料、制作和安装以及检验等方面内容进行对比,指出了两个标准内容上的异同点,对两个标准在这些方面所规定的要求和使用方法进行了说明,特别指出了两个标准所规定的不同要求和采用的不同方法对管道安全性的影响。     

K R -Curve Behavior of Duplex Ceramics

The fracture toughness behavior during crack growth ( K ^R -curve behavior) of duplex ceramics is investigated. Different types of K ^R -curves can be distinguished depending on the microstructural designs of these materials which are characterized by the volume fraction and size of the dispersed pressure zones, and by their effective volume expansion. According to their K ^R -curve behavior, duplex ceramics can be subdivided into two groups consisting of "short-range" and "long-range" toughened materials. The experimental results are discussed regarding the appearance of different toughening mechanisms which are documented by crack path micrographs. An unusual toughening effect, a "crackbranching chain reaction," is documented by in situ observations. The critical stress to nucleate the observed process zone development is calculated and compared with the internal stress intensity factor K _i which has been previously proposed for these materials and with the material strength.