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产品研制中标准化常见问题探讨与实践 被引量:1
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作者 翟新康 《中国标准化》 2019年第7期73-77,共5页
本文对飞机产品研制中标准化工作存在的实际问题进行了探讨和实践。通过梳理产品研制阶段划分及标准化主要任务,建立了产品研制典型流程,确定了各阶段标准化主要工作。针对产品型号命名不规范,特别是软件产品缺少命名标准的客观事实,提... 本文对飞机产品研制中标准化工作存在的实际问题进行了探讨和实践。通过梳理产品研制阶段划分及标准化主要任务,建立了产品研制典型流程,确定了各阶段标准化主要工作。针对产品型号命名不规范,特别是软件产品缺少命名标准的客观事实,提出了对其所属系统或硬件进行产品型号申请的方法。剖析了产品研制中“三化”落实不到位的原因,通过引入卡柯特定律,强调了“三化”的重要性,明确了“三化”的开展时机。重点探讨了产品定型与产品鉴定概念的区别,通过研究和对比分析GJB 1362A-2007和空装28号文中关于产品分级、产品定型及产品鉴定细则要求等内容,结合产品研制标准化实际运用,明确了设计定型、设计鉴定、技术鉴定三者的区别和联系。 展开更多
关键词 产品 标准 标准化 产品分级 产品命名 产品定型 产品鉴定
Generating Quantitative Product Profile Using Char-Word CNNs 预览
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作者 XU Hai-rui ZHANG Wei-cheng +1 位作者 LI Ming QIN Fei-wei 《高校应用数学学报:英文版(B辑)》 SCIE CSCD 2019年第3期356-378,共23页
The online customer reviews provide important information for product improvement and redesign.However,many reviews are redundant with only several short sentences,which may even conflict with each other on the same a... The online customer reviews provide important information for product improvement and redesign.However,many reviews are redundant with only several short sentences,which may even conflict with each other on the same aspect of a product.Thus it is usually a very challenging task to extract useful design information from the reviews and provide a clear description on the product’s various aspects amongst its competitors.In order to resolve this issue,we propose an approach to build hierarchical product profiles to describe a product’s kernel design aspects quantitatively.It is achieved via three main strategies:a double propagation strategy to achieve the associated features and customers’descriptions;a deep text processing network to build the aspect hierarchy;an aspect ranking approach to quantify each kernel design aspect.Experimental results validate the effectiveness of the proposed approach on online reviews. 展开更多
关键词 customer REVIEWS QUANTITATIVE PRODUCT PROFILE PRODUCT aspect ranking deep learning
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现代建筑的产品属性研究 预览
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作者 王健 《建筑实践》 2019年第2期42-43,共2页
论文主要研究在消费时代的背景下,现代建筑作为产品(层面),满足用户需求的主要途径和方式,以及该方式对现代建筑设计意识所产生的影响。随着生产型社会向消费型社会转变,以及现代建筑产品化趋势的逐步增强,建筑设计、生产与社会消费的... 论文主要研究在消费时代的背景下,现代建筑作为产品(层面),满足用户需求的主要途径和方式,以及该方式对现代建筑设计意识所产生的影响。随着生产型社会向消费型社会转变,以及现代建筑产品化趋势的逐步增强,建筑设计、生产与社会消费的关系开始发生转变,从生产为主导转向以消费为主导。现代建筑开始全面与工业产品的生产方式并轨。通常建筑师的关注重点停留在设计、生产层面,而建筑用户则更多关注消费层面自身利益的满足。关注重点的差异,使得建筑设计、生产和用户消费实现之间,供需双方缺乏必要的联接。今天,建筑领域对于这一重要环节,缺乏明晰、深入的研究。论文研究思路突破传统建筑学只研究建筑设计、生产问题,不研究建筑消费(使用)的弊端。从现代建筑消费视角的用户消费需求和目的出发,梳理现代建筑产品化发展的过程。同时,研究方法上,引入行为主义心理学中,对于人类活动目的性和认知性的"目的-手段”理论研究方法。根据个人价值影响个人行为的原则,建构起二元三重的“价值-行为”体系,把用户个人价值的实现作为最终目的,将建筑用户对于利益的认知方式作为达成目的的手段,通过“属性T需求/利益T个人价值”这个“目的-手段”链条,进行逆向推导,提出现代建筑产品属性的概念。并根据建筑用户对于利益认知的方式分类,划分现代建筑产品属性的分类,并在此基础上进行逐一论证。现代建筑产品属性的出现,引发了消费时代建筑设计意识的转变,即建筑设计中主体关系的重新定位以及再定位后的双向化发展,这将对建筑设计意识产生深刻的影响。由此,论文中针对现代建筑的产品属性探索,提出一种价值实现合理、用户需求满足且注重效益的建筑设计策略。论文结诒指出消费时代背景下,现代建筑产品属性的架 展开更多
关键词 现代建筑 产品 产品属性 消费 效率
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“以道融器”价值取向在现代家居产品设计中的应用 预览
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作者 薛明明 《设计》 2019年第13期100-102,共3页
研究和探讨中国传统设计的价值取向,找准道器相和的切入点,寻求现代产品设计方法的“成器之巧”。分析当前设计师设计的产品普遍西化、缺乏具有中国特色的设计的现状,对我国古代设计的价值取向以及隐含在设计背后深刻的古代造物文化进... 研究和探讨中国传统设计的价值取向,找准道器相和的切入点,寻求现代产品设计方法的“成器之巧”。分析当前设计师设计的产品普遍西化、缺乏具有中国特色的设计的现状,对我国古代设计的价值取向以及隐含在设计背后深刻的古代造物文化进行深入研究,将“以道融器”的设计理念应用于家居产品设计。在现代家居产品设计中融入“以道融器”的设计理念,使我国设计具有鲜明的文脉识别性,形成我国独有的民族特色设计。 展开更多
关键词 以道融器 以情寄物 家居产品 产品设计
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Explanatory Notes on Main Statistical Indicators
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《中国经济景气月报》 2019年第4期245-249,共5页
Gross Domestic Product (GDP) refers to the final products at market prices produced by all resident units in a country (or a region) during a certain period of time. Gross domestic product is expressed in three differ... Gross Domestic Product (GDP) refers to the final products at market prices produced by all resident units in a country (or a region) during a certain period of time. Gross domestic product is expressed in three different forms, i.e. value, income, and products respectively. GDP in its value form refers to the total value of all goods and services produced by all resident units during a certain period of time, minus the total value of input of goods and services of the nature of non-fixed assets;in other term, it is the sum of the value-added of all resident units. GDP in the form of income includes the income created by all resident units and distributed to resident and non-resident units. 展开更多
关键词 GROSS DOMESTIC PRODUCT (GDP) the FINAL products DOMESTIC PRODUCT
Toward using Cloud Elasticity on the Internet of Things Landscape 预览
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作者 Rodrigo da Rosa Righi Márcio Miguel Gomes +2 位作者 Cristiano Andrá da Costa Helge Parzyjegla Hans-Ulrich Heiss 《大数据与云创新》 2019年第1期1-20,共20页
The digital universe is growing at significant rates in recent years. One of the main responsible for this sentence is the Internet of Things (IoT), or IoT, which requires a middleware that should be capable to handle... The digital universe is growing at significant rates in recent years. One of the main responsible for this sentence is the Internet of Things (IoT), or IoT, which requires a middleware that should be capable to handle this increase of data volume at real time. Particularly, data can arrive in the middleware in parallel as in terms of input data from radiofrequency identification readers as request-reply query operations from the user’s side. Solutions modeled at software, hardware, and/or architecture levels present limitations to handle such load, facing the problem of scalability in the IoT scope. In this context, this article presents a model denoted Eliot - elasticity-driven IoT - which combines both cloud and high-performance computing to address the IoT scalability problem in a novel electronic product code (EPC) global-compliant architecture. Particularly, we keep the same application programming interface but offer an elastic EPC information services (EPCISs) component in the cloud, which is designed as a collection of virtual machines (VMs) that are allocated and deallocated on the fly in accordance with the system load. Based on the Eliot model, we developed a prototype that could run over any black box EPCglobal-compliant middleware. We selected the Fosstrak for this role, which is currently one of the most used IoT middlewares. Thus, the prototype acts as an upper layer over the Fosstrak to offer a better throughput and latency performances in an effortless way. The results are encouraging, where Eliot outperforms the non-elastic approach both in terms of response time and request throughput. 展开更多
关键词 Internet of THINGS CLOUD ELASTICITY ELECTRONIC PRODUCT CODE global Performance Adaptivity ELECTRONIC PRODUCT CODE information services
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Focusing on Naia^TM to inspire new product development--2019 the 4th Member's Day of Fabrics China Pioneer Plants & Naia^TM Cellulose Acetate Fiber Product Development Forum held in Dalang 预览
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《中国纺织:英文版》 2019年第7期31-33,共3页
Today, with the rapid rise of sustainable consumption concept, the combination of fashion and green will be a new way of product development that meets consumer demand. On July 4th, as one of the important contents of... Today, with the rapid rise of sustainable consumption concept, the combination of fashion and green will be a new way of product development that meets consumer demand. On July 4th, as one of the important contents of the 2019 China Textile Innovation Conference & Design Forum,“the 4th Member’s Day of Fabrics China Pioneer Plants & Naia^TM Cellulose Acetate Fiber Product Development Forum” were successfully held in Dalang Fashion Town, Shenzhen. With the theme of “Naia^TM cellulose acetate fiber product development”, the forum discussed how to integrate sustainable development concept with fashion trends to enhance the product development level and market competitiveness of Naia? and even the whole eco-textiles in accordance with the consumer awareness and market demand of eco-textiles. 展开更多
关键词 new PRODUCT development Fiber PRODUCT Dalang
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On New Subclass of Multivalent Functions Involving a Generalized Al-Oboudi Differential Operator 预览
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作者 Bitrus Sambo Oladejo Semiu Oladipupo Ayuba Sanda 《数学和系统科学:英文版》 2019年第2期57-63,共7页
The main aim of this paper is to introduce and investigate a new subclass of multivalent functions in the open unit disc U which is defined by a generalized Al-Oboudi differential operator. Coefficient inequalities, e... The main aim of this paper is to introduce and investigate a new subclass of multivalent functions in the open unit disc U which is defined by a generalized Al-Oboudi differential operator. Coefficient inequalities, extreme points, Hadamard product and integral mean inequalities for fractional derivative of functions in this class are given. 展开更多
关键词 MULTIVALENT functions extreme points HADAMARD product FRACTIONAL DERIVATIVE normalize
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Prediction of the cross-sections of isotopes produced in deuteron-induced spallation of long-lived fission products
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作者 杨冠铭 徐苏扬 +1 位作者 金梦婷 苏军 《中国物理C:英文版》 SCIE CAS CSCD 2019年第10期61-68,共8页
The spallation cross-section data for the long-lived fission products (LLFPs) are scarce but required for the design of accelerator driven systems. In this paper, the isospin dependent quantum molecular dynamics model... The spallation cross-section data for the long-lived fission products (LLFPs) are scarce but required for the design of accelerator driven systems. In this paper, the isospin dependent quantum molecular dynamics model and the statistical code GEMINI are applied to simulate deuteron-induced spallation in the energy region of GeV/nucleon. By comparing the calculations with the experimental data, the applicability of the model is verified. The model is then applied to simulate the spallation of 90Sr, 93Zr, 107Pd, and 137Cs induced by deuterons at 200, 500 and 1000 MeV/nucleon. The cross-sections of isotopes, the cross-sections of long-lived nuclei, and the reaction energy are presented. Using the above observables, the feasibility of LLFP transmutation by spallation is discussed. 展开更多
关键词 deuteron-induced SPALLATION transmutation long-lived fission product
A novel matrix approach for the stability and stabilization analysis of colored Petri nets
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作者 Jiantao ZHAO Zengqiang CHEN Zhongxin LIU 《中国科学:信息科学(英文版)》 SCIE EI CSCD 2019年第9期102-115,共14页
In this study, the stability and stabilization problem of a colored Petri net based on the semitensor product of matrices is investigated. First, the marking evolution equation of the colored Petri net in a Boolean al... In this study, the stability and stabilization problem of a colored Petri net based on the semitensor product of matrices is investigated. First, the marking evolution equation of the colored Petri net in a Boolean algebra framework is established, and the necessary and sufficient condition for the stability of the equilibrium point of the colored Petri net is given. Then, the concept of the pre-k steps reachability set is defined and is used to study the problem of marking feedback stabilization. Some properties of the pre-k steps reachability set are developed. The condition of the stabilization of the colored Petri net is given. The algorithm of the optimal marking feedback controller is designed. The proposed method in this paper could judge the stability and stabilization of the colored Petri net by matrix approach. The obtained results are simple and easy to implement by computer. An example is provided to illustrate the effectiveness of the proposed method. 展开更多
关键词 discrete event system COLORED PETRI net semi-tensor product of MATRICES stability EQUILIBRIUM point stabilization
Key Technologies of Traditional Chinese Medicine Traceability Based on Internet of Things 预览
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作者 Lei Yu Fangliang Huang +3 位作者 Yong Yang Qunshan Tao Tongping Shen Luyao Zhang 《国际计算机前沿大会会议论文集》 2019年第2期554-555,共2页
Compared with western medicine, there are many complicated factors affecting the intrinsic quality of traditional Chinese medicine, because its production needs to be planted, harvested, processed, transported, stored... Compared with western medicine, there are many complicated factors affecting the intrinsic quality of traditional Chinese medicine, because its production needs to be planted, harvested, processed, transported, stored, and sold, etc. Therefore, the internet of things is integrated into the traceability of traditional Chinese medicine, and its key technologies are studied. An XMLbased traceability information exchange model was constructed for traditional Chinese medicine and modeled the traceability process by the finite state machine (FSM). Furthermore, the specific electronic product code (EPC) coding scheme of traditional Chinese medicine was proposed based on the EPC coding structure model. Finally, the effectiveness of the above models and schemes is verified by an example of a traditional Chinese medicine traceability prototype system. 展开更多
关键词 TRADITIONAL Chinese MEDICINE Internet of THINGS TRACEABILITY Finite state machine Electronic product code
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Preparation of Ultralow Molecular Weight Poly(vinyl chloride) with Submicrometer Particles via Precipitation Polymerization
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作者 Peng Cui Chang-Tong Song +3 位作者 Xian-Hong Zhang Dong Chen Yu-Hong Ma Wan-Tai Yang 《高分子科学:英文版》 SCIE CAS CSCD 2019年第7期646-653,共8页
Poly(vinyl chloride), with ultralow molecular weight, produced by free radical polymerization either at high temperature or in the presence of chain transfer agents, is widely used as special resins and polymer proces... Poly(vinyl chloride), with ultralow molecular weight, produced by free radical polymerization either at high temperature or in the presence of chain transfer agents, is widely used as special resins and polymer process additives. This paper reports a new process, called self-stabilized precipitation polymerization, in which the polymerization of vinyl chloride monomer (VCM) is conducted in hydrocarbon diluents without addition of any suspending agent or emulsifier. The merits of this novel strategy include:(1) PVC resins with ultra-low number-average molecular weight (Mn) from 4000 to 15000, which is much lower than Mn of those prepared by conventional suspension and emulsion polymerizations,(2) sub-micrometer PVC particles with near spherical morphology, and (3) the very simple post-polymerization separation process. Under mild stirring, polymerization proceeds stably and smoothly. The influences of main process factors, such as solvents, initiator and monomer concentrations, polymerization time, and temperature on both particle morphology and Mn of the polymer products are investigated systematically. The molar ratio of-CH2-CHCl-/-CH=CH-CH2CHCl, a good indicator of structural defects, is about 1000/0.1 which means the low molecular weights do not result from chain transfer to the monomers. Then the mechanism of this polymerization is proposed. In summary, this novel polymerization technology provides a straightforward method for preparing PVC particulate products with low Mn. 展开更多
关键词 Precipitation POLYMERIZATION VINYL CHLORIDE ULTRALOW molecular WEIGHT PURE product
全球非织造布市场的发展现状及趋势展望 预览
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作者 张哲 常丽 明津法 《纺织导报》 CAS 2019年第6期96-99,共4页
文章综述了全球非织造布行业的发展概况,分析了我国非织造行业发展过程中存在的问题及行业努力的方向,并对未来的发展趋势进行了展望。
关键词 非织造 消费量 产品
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新能源电动汽车企业标准化管理与分析--以中车时代电动汽车股份有限公司为例
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作者 言艳毛 《中国标准化》 2019年第19期114-117,共4页
本文对研制标准化工作在新能源电动汽车企业管理中的重要性进行了探讨,通过引入卡柯特定律,强调了"三化"的重要性,明确了"三化"的开展时机,剖析了标准化管理中存在的实际问题,并提出标准化管理的提升举措,并根据自... 本文对研制标准化工作在新能源电动汽车企业管理中的重要性进行了探讨,通过引入卡柯特定律,强调了"三化"的重要性,明确了"三化"的开展时机,剖析了标准化管理中存在的实际问题,并提出标准化管理的提升举措,并根据自身的工作经验,说明了标准分析的重要性,并提出了标准分析的方法。 展开更多
关键词 产品 标准化 三化 标准体系 标准分析
Studies on 3-Amino-4-(1H-tetrazol-5-yl)-furazan:Crystal Structure, Thermal Behavior and Energetic Performance
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作者 MA Xiao WANG Xiaohong +3 位作者 SHANG Fan DING Zimei HANG Xiaojing HUANG Jie 《高等学校化学研究:英文版》 SCIE CAS CSCD 2019年第5期848-853,共6页
The structure of 4-amino-3-(5-tetrazolate)-fiirazan(HAFT) was characterized by single crystal X-ray diffraction. The thermal decomposition process of HAFT was investigated by MS-FTIR-DSC-TG coupling technique. The res... The structure of 4-amino-3-(5-tetrazolate)-fiirazan(HAFT) was characterized by single crystal X-ray diffraction. The thermal decomposition process of HAFT was investigated by MS-FTIR-DSC-TG coupling technique. The result shows that the exothermic process occurs from 278.7-350℃, with a peak temperature of 324.7℃. The thennal decomposition gaseous products of HAFT are NO2, CO2, HCN, CO, NH3 and H2O. The detonation velocity and detonation pressure of HAFT were calculated by the nitrogen equivalent equation. The detonation velocity of HAFT is 7727.46 m/s, which is higher than that of TNT(7178 m/s). The detonation pressure of HAFT(25.27 GPa) is satisfactory. The sensitivity tests reveal HAFT possesses excellent insensitivities to impact and friction. 展开更多
关键词 3-Amino-4-(1H-tetrazol-5-yl)-furazan Crystal structure Thermal behavior Gas product ENERGETIC PERFORMANCE
Effects of Cr content on corrosion behaviour and corrosion products of spring steels
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作者 Mao-fang Zuo Yin-li Chen +2 位作者 Zhen-li Mi Yi-de Wang Hai-tao Jiang 《钢铁研究学报:英文版》 SCIE EI CAS CSCD 2019年第9期1000-1010,共11页
Neutral salt spray corrosion experiments of spring steels with different Cr contents were carried out for different corrosion periods. The optical microscope was used to observe the macroscopic corrosion morphology of... Neutral salt spray corrosion experiments of spring steels with different Cr contents were carried out for different corrosion periods. The optical microscope was used to observe the macroscopic corrosion morphology of the steel surface. The corrosion pit morphology of steel surface was observed by laser scanning confocal microscopy and scanning electron microscopy, and three-dimensional simulation was carried out. At the same time, the corrosion products (rust layer) were qualitatively and quantitatively analysed by X-ray diffraction. As the results show, Cr is beneficial to improving corrosion resistance of the experimental steel matrix, and the higher the content of Cr, the stronger the corrosion resistance will be. With increase in Cr content in steel, the development of corrosion process will be more effectively suppressed. With the increase in Cr content, the denser the corrosion products, the stronger the bond with the metal matrix is. The corrosion products have obvious stratification;the outer layer is mainly composed of c-FeOOH, which is relatively loose and not firmly integrated with the matrix, while the inner layer contains a-FeOOH and Fe3O4, which are relatively dense and closely integrated with the matrix. The types of corrosion are constantly changing during different phases of corrosion. 展开更多
关键词 SPRING steel Cr content CORROSION BEHAVIOUR CORROSION product RUST LAYER
Symmetry-based decomposition of finite games
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作者 Changxi LI Fenghua HE +1 位作者 Ting LIU Daizhan CHENG 《中国科学:信息科学(英文版)》 SCIE EI CSCD 2019年第1期164-172,共9页
The symmetry-based decompositions of finite games are investigated.First,the vector space of finite games is decomposed into a symmetric subspace and an orthogonal complement of the symmetric subspace.The bases of the... The symmetry-based decompositions of finite games are investigated.First,the vector space of finite games is decomposed into a symmetric subspace and an orthogonal complement of the symmetric subspace.The bases of the symmetric subspace and those of its orthogonal complement are presented.Second,the potential-based orthogonal decompositions of two-player symmetric/antisymmetric games are presented.The bases and dimensions of all dual decomposed subspaces are revealed.Finally,some properties of these decomposed subspaces are obtained. 展开更多
关键词 potential GAME symmetric GAME DECOMPOSITION NASH equilibrium semi-tensor product of MATRICES
基于文化融合视域下博物馆文创产品的设计与转化 预览
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作者 赵丽颖 《西南林业大学学报:社会科学版》 CAS 2019年第3期34-39,共6页
以“Things East Weast”模型为切入点,通过对故宫淘宝文创产品的实例研究,分析了文化融合模型在文创产品转化中的优势。将文化融合理念与文创产品设计相结合,从理论上形成博物馆创意开发设计策略,建立文创产品创意创新的可操作模型,以... 以“Things East Weast”模型为切入点,通过对故宫淘宝文创产品的实例研究,分析了文化融合模型在文创产品转化中的优势。将文化融合理念与文创产品设计相结合,从理论上形成博物馆创意开发设计策略,建立文创产品创意创新的可操作模型,以期对文创产品创意设计的具体实施提供参考依据。 展开更多
关键词 文化产业 文创设计 产品 文化融合 博物馆
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Matrix expression of Shapley values and its application to distributed resource allocation
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作者 Yuanhua WANG Daizhan CHENG Xiyu LIU 《中国科学:信息科学(英文版)》 SCIE EI CSCD 2019年第2期42-52,共11页
The symmetric and weighted Shapley values for cooperative n-person games are studied.Using the semi-tensor product of matrices,it is first shown that a characteristic function can be expressed as a pseudo-Boolean func... The symmetric and weighted Shapley values for cooperative n-person games are studied.Using the semi-tensor product of matrices,it is first shown that a characteristic function can be expressed as a pseudo-Boolean function.Then,two simple matrix formulas are obtained for calculating the symmetric and weighted Shapley values.Finally,using these new formulas,a design technique for the agents’payoff functions in distributed resource allocation problems is proposed.It is possible to design payoff functions with the weighted Shapley value by the nonsymmetric weights defined on the players,thus ensuring that the optimal allocation is a pure Nash equilibrium.Practical examples are presented to illustrate the theoretical results. 展开更多
关键词 semi-tensor product of MATRICES Shapley value MATRIX FORMULA distributed RESOURCE ALLOCATION
Export Performance of China: A Constant Market Share Analysis
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作者 Nidhi Bagaria Saba Ismail 《中国经济学前沿:英文版》 2019年第1期110-130,共21页
In the light of the fact that there has been substantial growth in China's exports in last three decades, particularly after China joined the WTO in 2001, this article investigates the major sources of China's... In the light of the fact that there has been substantial growth in China's exports in last three decades, particularly after China joined the WTO in 2001, this article investigates the major sources of China's export performance during 2002-2014 by using the constant market share (CMS) model. In this study, exports are further decomposed in three categories based on their technological intensity using Lail (2000) classification on 3 digit SITC Revision-3 data provided by UN Comtrade via WITS database. The categories are high technology, medium technology and low technology. It is found that growth of China's exports has, moreover, remained above world exports growth in all three categories during the period of study. The analysis reveals that export performance is mainly attributed to 让s competitive strength in the global market, though decreasing trend has been observed in the competitiveness of all three categories. Increasing cost of labor and appreciating RMB could be the causes behind decreasing competitiveness of Chinese exports. Product structure effect, on an average, has turned out to be negative in all the categories which is the most disturbing aspect of China's export performance. On the other hand, geographical structure effect has positive impact on export performance of high-technology based exports whereas it has negative impact on export performance of low-technology and medium-technology based exports. China being the world's largest exporter, decreasing competitiveness and wrong product structure effect could adversely influence its export performance in particular and its growth in general. 展开更多
关键词 CONSTANT MARKET SHARE (CMS) China's SHARE in world exports export performance MARKET SHARE EFFECT product STRUCTURE EFFECT geographical STRUCTURE EFFECT competitiveness HI-TECH
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