期刊文献+
共找到8,697篇文章
< 1 2 250 >
每页显示 20 50 100
AAK Theorem and a Design of Multidimensional BIBO Stable Filters
1
作者 Bossoto Bossoto Gabriel Bissanga 《Open Journal of Discrete Mathematics》 2024年第2期9-15,共7页
Rational approximation theory occupies a significant place in signal processing and systems theory. This research paper proposes an optimal design of BIBO stable multidimensional Infinite Impulse Response filters with... Rational approximation theory occupies a significant place in signal processing and systems theory. This research paper proposes an optimal design of BIBO stable multidimensional Infinite Impulse Response filters with a realizable (rational) transfer function thanks to the Adamjan, Arov and Krein (AAK) theorem. It is well known that the one dimensional AAK results give the best approximation of a polynomial as a rational function in the Hankel semi norm. We suppose that the Hankel matrix associated to the transfer function has a finite rank. 展开更多
关键词 Multidimensional Filter design BIBO Stability Optimal AAK Theorem Transfer function Hankel Matrix
下载PDF
Method for Functional Design of Axiomatic Design Based on Connections 被引量:3
2
作者 DENG Jianxin SHAO Ming 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2011年第3期364-371,共8页
Axiomatic design(AD) is a popular design method,and satisfying the independence axiom is the basis of AD.However,AD doesn't provide methods to decompose functions then keep them independent and to handle coupled de... Axiomatic design(AD) is a popular design method,and satisfying the independence axiom is the basis of AD.However,AD doesn't provide methods to decompose functions then keep them independent and to handle coupled design.A few of ways of handling coupled design are mainly passive resolutions when coupled design exists,but not efficient to each product design.Hence,this paper presents an innovative approach to design and decompose functions of complex products based on functional connections,aiming at actively avoiding functional coupling.By contrasting with component networks,four kinds of relations among functions are identified,including spatial,energy,material,and information connection.Then the definitions of these relations and the dominant connection are given.Based on the definitions,the principles of functional decomposition and design are developed,in which each non-leaf function is broken into sub functions centered on its dominant connection with avoidance of functional cross and coupling,and sequentially satisfies the independence axiom.Then the operational flow of the proposed approach is constructed.Determining the dominant connection of a function,decomposing the function into sub functions in terms of the dominant connection and reverse examination and optimization are planed as the core steps in each zigzagging.Input process output(IPO) analysis is introduced to obtain the dominant connection of a function,some rules for examining and optimizing the decomposition results reversely according to oriented object theory are presented as well.An illustrative example about the pouring function of squeeze casting equipments presented demonstrates how to use the proposed approach,and indicates its effectiveness.The proposed approach expands the principles of AD,constructs a guidance policy for independent functional design of complex products based on AD,and can help decrease or actively avoid coupled design and improve design efficiency. 展开更多
关键词 axiomatic design functional design complex product functional decomposition CONNECTIONS squeeze casting equipment
下载PDF
Optimum Weight Design of Functionally Graded Material Gears 被引量:7
3
作者 JING Shikai ZHANG He +1 位作者 ZHOU Jingtao SONG Guohua 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2015年第6期1186-1193,共8页
Traditional gear weight optimization methods consider gear tooth number, module, face width or other dimension parameters of gear as design variables. However, due to the complicated form and geometric features peculi... Traditional gear weight optimization methods consider gear tooth number, module, face width or other dimension parameters of gear as design variables. However, due to the complicated form and geometric features peculiar to the gear, there will be large amounts of design parameters in gear design, and the influences of gear parameters changing on gear trains, transmission system and the whole equipment have to be taken into account, which increases the complexity of optimization problem. This paper puts forward to apply functionally graded materials(FGMs) to gears and then conduct the optimization. According to the force situation of gears, the material distribution form of FGM gears is determined. Then based on the performance parameters analysis of FGMs and the practical working demands for gears, a multi-objective optimization model is formed. Finally by using the goal driven optimization(GDO) method, the optimal material distribution is achieved, which makes gear weight and the maximum deformation be minimum and the maximum bending stress do not exceed the allowable stress. As an example, the applying of FGM to automotive transmission gear is conducted to illustrate the optimization design process and the result shows that under the condition of keeping the normal working performance of gear, the method achieves in greatly reducing the gear weight. This research proposes a FGM gears design method that is able to largely reduce the weight of gears by optimizing the microscopic material parameters instead of changing the macroscopic dimension parameters of gears, which reduces the complexity of gear weight optimization problem. 展开更多
关键词 GEARS optimum weight design functionally graded materials material distribution additive manufacturing
下载PDF
Functional design of wind turbine airfoils based on roughness sensitivity characteristics 被引量:4
4
作者 王旭东 Xia Hongjun 《High Technology Letters》 EI CAS 2014年第4期442-445,共4页
To improve aerodynamic performance of wind turbine airfoils,the shape profile characteristic of the airfoil is investigated.Application of conformal transformation,one functional and integrated expression of wind turb... To improve aerodynamic performance of wind turbine airfoils,the shape profile characteristic of the airfoil is investigated.Application of conformal transformation,one functional and integrated expression of wind turbine airfoils is presented.Using the boundary layer theory,the aerodynamic model with roughness of wind turbine airfoils is introduced by studying flow separation around the airfoil.Based on the shape expression and aerodynamic performance of airfoils,the function design of wind turbine airfoils is carried out that the maximum lift-drag ratio and low roughness sensitivity are designed objects.Three wind turbines airfoils with different thickness are gained which are used at tip part of blades.As an example,the aerodynamic performance of one designed airfoil with relative thickness of 15%is simulated in different conditions of clean surface,rough surface,laminar flow and turbulent flow.The comparison of aerodynamic performance between the designed airfoil and one popular NACA airfoil is completed which can verify the better performance of the designed airfoil and reliability of the designed method. 展开更多
关键词 wind turbine airfoils integrated expression lift-drag ratio roughness sensitivity function design
下载PDF
Structural analysis and design of frost resistance function for subgrade of high-speed railway ballasted track in cold regions 被引量:1
5
作者 Qiang Luo WenQiang Lv +1 位作者 QingZhi Ye RuiGuo Zhang 《Research in Cold and Arid Regions》 CSCD 2015年第5期594-604,共11页
According to the technical characteristics of short fixed wheelbase of a high-speed carriage, a subgrade-track integrated space mechanical response analysis model is proposed for trains under the action ofbiaxial load... According to the technical characteristics of short fixed wheelbase of a high-speed carriage, a subgrade-track integrated space mechanical response analysis model is proposed for trains under the action ofbiaxial load after the comparison of the stress distribution characteristics of the ballast track subgrade bed structures for high-speed railway under the action of uniaxial load and biaxial load. The loading threshold value (high-cycle long-term dynamic strength) under the circum- stance where the cumulative deformation of subgrade structure gradually develops and finally reaches the convergent state, and its relationship with the foundation coefficient K30 were deduced, based on the characteristics of cumulative defor- mation evolution obtained from the unit structure filling model test under the action of cyclic loading. In view of structure stability and frost resistance requirements of the railway subgrade in cold regions, technical conditions to maintain good service performance of subgrade structure of high-speed railway ballasted track are discussed and analyzed. Study results show that the additive effect manifests itself obviously for railway train bogies under the action of biaxial load than uni- axial load, which has a significant dynamic effect on the subgrade bed bottom and a slight effect on the surface layer. Thus, the adoption of a biaxial load model in the design of a high-speed railway subgrade accurately reflects the vehicle load. Pursuant to the structure design principle, the design method of the subgrade structure of high-speed railway ballasted track is proposed to meet the technical requirements such as structural strength, bearing stiffness and high-cyclic and long-term stability. Technical indicators are obtained for the variation of thickness of the surface layer of reinforced sub- grade bed in the double-layer subgrade mode along with the change of K30 at the subgrade bed bottom. The double-layer structure mode of "closure on the upper layer and drainage on the lower layer" was proposed in order to meet the water- proofing and drainage requirements of the upper layer of the subgrade bed in cold regions. A dense-framework graded gravel filler with weak water permeability at a coefficient of 10 4 cm/s is used on the upper layer and the void-framework graded gravel filler at the water permeability coefficient of 10 2 cm/s is adopted on the lower layer. 展开更多
关键词 high-speed railway in cold regions subgrade structure biaxial load mode structural analysis design of frostresistance function
下载PDF
Design of Co-sedimentation Experiments Used to Fabricate Functionally Graded Materials with a Continuous Change of Composition 被引量:1
6
作者 杨中民 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2004年第2期11-13,共3页
In the process of particle settling in a dilute,a density graded distribution of the liquid below the suspension needs to be designed according to the gravity of the suspension prior to sedimentation.In the present pa... In the process of particle settling in a dilute,a density graded distribution of the liquid below the suspension needs to be designed according to the gravity of the suspension prior to sedimentation.In the present paper a compositionally graded W-Mo composite was formed via the settling of the W and Mo particles,with a density gradient distributed in the initial clear liquid along the settling direction. 展开更多
关键词 co-sedimentation design functionally graded material
下载PDF
Reliable Space Pursuing for Reliability-based Design Optimization with Black-box Performance Functions 被引量:2
7
作者 SHAN Songqing WANG G Gary 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2009年第1期27-35,共9页
Reliability-based design optimization (RBDO) is intrinsically a double-loop procedure since it involves an overall optimization and an iterative reliability assessment at each search point. Due to the double-loop pr... Reliability-based design optimization (RBDO) is intrinsically a double-loop procedure since it involves an overall optimization and an iterative reliability assessment at each search point. Due to the double-loop procedure, the computational expense of RBDO is normally very high. Current RBDO research focuses on problems with explicitly expressed performance functions and readily available gradients. This paper addresses a more challenging type of RBDO problem in which the performance functions are computation intensive. These computation intensive functions are often considered as a "black-box" and their gradients are not available or not reliable. On the basis of the reliable design space (RDS) concept proposed earlier by the authors, this paper proposes a Reliable Space Pursuing (RSP) approach, in which RDS is first identified and then gradually refined while optimization is performed. It fundamentally avoids the nested optimization and probabilistic assessment loop. Three well known RBDO problems from the literature are used for testing and demonstrating the effectiveness of the proposed RSP method. 展开更多
关键词 Reliability based design optimization black-box function reliable design space
下载PDF
TOPOLOGY DESCRIPTION FUNCTION BASED METHOD FOR MATERIAL DESIGN 被引量:1
8
作者 Cao Xianfan Liu Shutian 《Acta Mechanica Solida Sinica》 SCIE EI 2006年第2期95-102,共8页
The purpose of this paper is to investigate the application of topology description function (TDF) in material design. Using TDF to describe the topology of the microstructure, the formulation and the solving techni... The purpose of this paper is to investigate the application of topology description function (TDF) in material design. Using TDF to describe the topology of the microstructure, the formulation and the solving technique of the design problem of materials with prescribed mechanical properties are presented. By presenting the TDF as the sum of a series of basis functions determined by parameters, the topology optimization of material microstructure is formulated as a size optimization problem whose design variables are parameters of TDF basis functions and independent of the mesh of the design domain. By this method, high quality topologies for describing the distribution of constituent material in design domain can be obtained and checkerboard problem often met in the variable density method is avoided. Compared with the conventional level set method, the optimization problem can be solved simply by existing optimization techniques without the process to solve the 'Hamilton-Jacobi-type' equation by the difference method. The method proposed is illustrated with two 2D examples. One gives the unit cell with positive Poisson's ratio, the other with negative Poisson's ratio. The examples show the method based on TDF is effective for material design. 展开更多
关键词 topology optimization topology description function material design
下载PDF
DESIGN AND PROPERTIES OF A FUNCTIONALLY GRADIENT CERAMIC TOOL MATERIAL 被引量:14
9
作者 J. Zhao,X. Ai, J.H. Zhang, J.X. Deng and C.Z. Huang Department of Mechanical Engineering, Shandong University of Technology, Jinan 250061,China 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1999年第5期1054-1058,共5页
Based on the analyses of the severity of cutting process as well as the failure mechanisms of ceramic tools, a model for designing functionally gradient ceramic tool materials with symmetrical distribution is presente... Based on the analyses of the severity of cutting process as well as the failure mechanisms of ceramic tools, a model for designing functionally gradient ceramic tool materials with symmetrical distribution is presented, by which a Al 2O 3/(W,Ti)C ceramic tool material FG 2 was developed. Multi objective optimization method was employed in designing the compositional distribution of this ceramic tool material. The results of both continuous and intermittent cutting tests are indicative of the much better cutting behavior of the functionally gradient ceramic tool FG 2 than that of the common ceramic tool SG 4. 展开更多
关键词 functionally gradient materials materials design compositional distribution ceramic tool
下载PDF
Path Analysis of Agricultural Project Design Based on Function Expansion: A Case Study of Naya Mountain Villa 被引量:2
10
作者 Yuehong SUN Yongsheng WU +1 位作者 Rui CHEN Xue YANG 《Asian Agricultural Research》 2018年第2期22-31,共10页
The expansion of agricultural function is one of the important means for modern agricultural projects to promote agricultural economic benefits. Successful modern agricultural projects require good creative ideas and ... The expansion of agricultural function is one of the important means for modern agricultural projects to promote agricultural economic benefits. Successful modern agricultural projects require good creative ideas and design programs. While developing high-efficient modern agricultural production activities,we should fully explore the intangible value of agricultural production activities,combine agriculture with agricultural products,natural conditions,cultural conception and other effective resources,to expand agricultural functions,and promote comprehensive benefits. In order to build a sustainable modern agricultural project operation system,Naya Mountain Villa project planning is taken as an example for analysis. Naya Mountain Villa began construction in 2011; the creative planning based on the agricultural expansion function was carried out in 2013; it had successful access to the capital market in 2015. The project realizes the effective integration of agricultural production system and agricultural function expansion,constructs a set of long-term stable profiting models,and lays an important foundation for entering the capital market. The project is a representative example of the function-expanding modern agricultural project. Through the analysis of the design ideas of the project,this paper discusses the function expansion elements of basic resources,public welfare and agricultural function expansion methods,the formation of general ideas,source and construction logic of creative thinking,and summarizes and abstracts some inspiring design methods of agricultural function expansion. Through the analysis of the key points in the design of the specific technical aspects of the project,this paper provides a reference for solving common difficult problems in the practical design. The summary and refinement of the thinking logic,thinking construction and specific design method of the project is inspiring and repeatable to some extent,which can provide reference for the relevant researchers. 展开更多
关键词 Modern agriculture design of Naya Mountain Villa function expansion
下载PDF
Function and Design Idea of UHVDC Test Base
11
作者 Yu Yongqing, Li Guangfan, Sun Lin, Su Zhiyi and Lu Jiayu China Electric Power Research Institute Zhao Fang 《Electricity》 2009年第1期38-43,共6页
The function of the UHVDC test base of the State Grid Corporation of China (SGCC) is oriented to serve UHVDC power transmission and substation projects, especially power transmission from West China to East China, and... The function of the UHVDC test base of the State Grid Corporation of China (SGCC) is oriented to serve UHVDC power transmission and substation projects, especially power transmission from West China to East China, and to promote localization of UHVDC transmission and substation equipment. In essentials, this test base consists of UHVDC test transmission line, corona cage, outdoor test site, UHV test hall, pollution and environment laboratory, electromagnetic environment simulation test site, insulator laboratory, arrester laboratory and live equipment test field. This paper introduces the function and design idea of the test base, presents the main performance parameters of the above-mentioned test facilities, and summarizes the matters of concern when siting and planning. 展开更多
关键词 UHVDC TEST function and design Idea of UHVDC Test Base design TEST
下载PDF
QUALITY FUNCTION DEPLOYMENT IN BOTTOM-UP PROCESS FOR DESIGN REUSE 被引量:4
12
作者 Tan Runhua, Duan Guolin, Liang Yanhong, Yuan Caiyun (School of Mechanical Engineering,Hebei University of Technology) 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2001年第4期381-384,共4页
To deal with a bottom up process model for design reuses a specific extended house of quality(EHOQ)is proposed Two kinds of supported functions,basic supported functions and new supported functions,are defined.Two ... To deal with a bottom up process model for design reuses a specific extended house of quality(EHOQ)is proposed Two kinds of supported functions,basic supported functions and new supported functions,are defined.Two processes to determine two kinds of functions are presented A kind of EHOQ matrix for a company is given and its management steps are studied. 展开更多
关键词 Quality function deployment BOTTOM up process design reuse
下载PDF
Product design on the basis of fuzzy quality function deployment 被引量:2
13
作者 Li Zhaoling Gao Qisheng Zhang Dongling 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2008年第6期1165-1170,共6页
In the implementation of quality function deployment (QFD), the determination of the target values of engineering characteristics is a complex decision process with multiple variables and multiple objectives that sh... In the implementation of quality function deployment (QFD), the determination of the target values of engineering characteristics is a complex decision process with multiple variables and multiple objectives that should trade off, and optimize all kinds of conflicts and constraints. A fuzzy linear programming model (FLP) is proposed. On the basis of the inherent fuzziness of QFD system, triangular fuzzy numbers are used to represent all the relationships and correlations, and then, the functional relationships between the customer needs and engineering characteristics and the functional correlations among the engineering characteristics are determined with the information in the house of quality (HoQ) fully used. The fuzzy linear programming (FLP) model aims to find the optimal target values of the engineering characteristics to maximize the customer satisfaction. Finally, the proposed method is illustrated by a numerical example. 展开更多
关键词 quality function deployment house of quality product design fuzzy optimization customer satisfaction
下载PDF
气动翼型涡流发生器与风力机翼型同步优化设计 被引量:2
14
作者 汪泉 杨书益 +1 位作者 胡梦杰 王环均 《机械设计与制造》 北大核心 2024年第1期95-99,106,共6页
针对目前风力机叶片翼型与涡流发生器相互独立的串行设计方法,导致不能最大限度的设计出气动性能最佳的风力机新叶片加装新型涡流发生器。这里提出带气动翼型的涡流发生器与风力机叶片翼型同步设计方法,利用B样条函数分别表达叶片翼型... 针对目前风力机叶片翼型与涡流发生器相互独立的串行设计方法,导致不能最大限度的设计出气动性能最佳的风力机新叶片加装新型涡流发生器。这里提出带气动翼型的涡流发生器与风力机叶片翼型同步设计方法,利用B样条函数分别表达叶片翼型与涡流发生器气动形状,以最大升阻比及失速前最大升力系数为多目标函数建立优化数学模型,结合CFD技术与粒子群算法对原始叶片翼型DU97-W-300与CLARKY翼型涡流发生器进行同步优化,优化结果表明:相比原始叶片翼段加装CLARKY翼型涡流发生器,优化后的升力系数为2.378,提高了9.3%,升阻比为63.335,提高了7.5%;且对优化前后的流线图及涡量云图进行了对比分析,说明优化后叶片加装涡流发生器翼型可产生更大的诱导涡,能够有效抑制叶片表面流体分离。这里研究对于叶片与涡流发生器的设计及应用具有很好的参考与借鉴意义。 展开更多
关键词 风力机叶片 涡流发生器 一体化设计 B样条函数 CFD技术
下载PDF
无参数自适应罚函数的高效代理模型优化设计方法
15
作者 张伟 高正红 +1 位作者 王超 夏露 《北京航空航天大学学报》 EI CAS CSCD 北大核心 2024年第4期1262-1272,共11页
在飞行器气动外形优化设计中,复杂约束条件导致设计空间可行域呈现不连续的特征,且理想解大多靠近约束边界,传统高效代理模型方法难以适用。研究了参考点对优化设计的影响,提出了一种考虑约束的参考点选择机制;对于最优解靠近边界的问题... 在飞行器气动外形优化设计中,复杂约束条件导致设计空间可行域呈现不连续的特征,且理想解大多靠近约束边界,传统高效代理模型方法难以适用。研究了参考点对优化设计的影响,提出了一种考虑约束的参考点选择机制;对于最优解靠近边界的问题,罚函数法更加有效,但惩罚因子的设置对于罚函数方法影响很大,不合适的惩罚因子反而会损害优化效率,分析了优化过程中罚函数方法对惩罚因子的要求,提出了一种无参数自适应罚函数的代理模优化设计方法,引入基于样本分析的惩罚项,结合归一化目标值和约束值,在优化过程中动态调整惩罚因子,使优化能够尽可能地聚焦于可行域内,迅速收敛到最优解,实现样本的高效配置。通过带约束的函数算例和翼型优化算例证实,所提方法可以大幅提高飞行器气动外形优化设计效率。 展开更多
关键词 优化设计 代理模型 参考点 气动设计 自适应罚函数
原文传递
秋冬季青少年自行车骑行服结构设计研究
16
作者 靳杜娟 白金绒 曹蓓 《天津纺织科技》 2024年第5期21-24,共4页
文章对自行车骑行服的特点、功能性要求及结构特征进行分析,并以爱好骑行、积极响应绿色出行的广大学生群体为研究对象,对其秋冬季日常骑行服的款式、细节、面料、功能等需求进行调研。研究发现,大多数人对秋冬季户外骑行服装的舒适性... 文章对自行车骑行服的特点、功能性要求及结构特征进行分析,并以爱好骑行、积极响应绿色出行的广大学生群体为研究对象,对其秋冬季日常骑行服的款式、细节、面料、功能等需求进行调研。研究发现,大多数人对秋冬季户外骑行服装的舒适性、穿脱方便性等较为看重。基于消费者的实际需求,对秋冬季青少年自行车骑行服进行结构设计,从廓型、领型、袖型、分割线结构、内胆可拆卸设计、内胆连接方式、防滑、反光条等方面进行设计和制作工艺研究,以满足人们对骑行服功能性、穿着便捷性、时尚性和舒适性的要求,为国内的自行车骑行服研发提供参考。 展开更多
关键词 自行车骑行服 结构设计 青少年 可拆卸设计 功能性
原文传递
专利数据辅助的新产品概念设计方案生成方法
17
作者 杨雯丹 曹国忠 《计算机集成制造系统》 EI CSCD 北大核心 2024年第3期992-1010,共19页
在生成新产品概念设计方案的过程中,企业常缺乏辅助新产品功能描述、分解及创新的设计知识,且存在功能实现技术检索结果可用性不高、难以有效转化为概念设计方案技术特征的问题。为此,提出一种专利数据辅助的新产品概念设计方案生成方... 在生成新产品概念设计方案的过程中,企业常缺乏辅助新产品功能描述、分解及创新的设计知识,且存在功能实现技术检索结果可用性不高、难以有效转化为概念设计方案技术特征的问题。为此,提出一种专利数据辅助的新产品概念设计方案生成方法。首先,使用文本相似度算法,检索国际专利分类表中与设计任务相关的分类号文本,辅助描述新产品的主功能。其次,引入C-K理论将下级分类号释义视为K空间中的元素,新产品子功能视为C空间中的元素,通过元素间转化辅助完成主功能分解。再次,结合专利技术成熟度分析和功能创新策略,确定新产品的功能创新方向,并依据共现分类号释义预测新产品的集成功能,辅助实现新产品的功能创新。接着,应用专利文献跨域特征分析模型,引入技术领域融合度的概念,量化专利技术的知识广度和流动性,辅助优选功能实现技术,并利用语义解析技术自动提取专利独立权利要求中的技术特征,辅助生成新产品概念设计方案。最后,将该方法应用于重型汽车底盘预装设备领域的新产品开发,证明了方法的有效性。 展开更多
关键词 概念设计 专利数据 功能设计 专利技术优选 语义解析
下载PDF
基于主题爬虫的网络舆情系统设计与实现
18
作者 江官星 黄卫 《无线互联科技》 2024年第14期33-35,50,共4页
网络舆情具有快速、广泛传播的特征,发酵扩散时间极短,若未及时发现并妥善处置,可能会引发网络舆情危机,造成严重的危害与影响。为净化网络环境,减少网络舆情爆发所产生的损失,文章以网络爬虫技术为基础,设计了基于主题爬虫的网络舆情... 网络舆情具有快速、广泛传播的特征,发酵扩散时间极短,若未及时发现并妥善处置,可能会引发网络舆情危机,造成严重的危害与影响。为净化网络环境,减少网络舆情爆发所产生的损失,文章以网络爬虫技术为基础,设计了基于主题爬虫的网络舆情监测管理系统。首先,文章阐述了此系统设计思路,分别介绍了系统架构设计、系统功能设计、系统安全设计3个方面内容。最后,文章依次给出了舆情采集、舆情监测、舆情分析、舆情预警、舆情处置5个主要功能的实现方法,旨在为相关部门科学监控与处置网络舆情提供可靠的软件系统。 展开更多
关键词 主题爬虫 网络舆情 系统设计 功能实现
下载PDF
冬季运动服装装备的功能性设计实践研究
19
作者 马瑜 李翠翠 +1 位作者 马菡婧 任畅 《包装工程》 CAS 北大核心 2024年第8期328-336,共9页
目的为了深入探讨冬季运动服装装备的功能性设计实践研究的发展态势,对我国冬季运动服装装备的功能性设计实践及其发展趋势进行系统化的梳理和分析,明确我国冬季运动服装装备未来的发展趋势及其应用的可行性。方法首先对冬季运动服装装... 目的为了深入探讨冬季运动服装装备的功能性设计实践研究的发展态势,对我国冬季运动服装装备的功能性设计实践及其发展趋势进行系统化的梳理和分析,明确我国冬季运动服装装备未来的发展趋势及其应用的可行性。方法首先对冬季运动服装装备进行概述,其次利用文献分析法总结冬季运动服装装备的发展历程和现状,最后对冬季运动服装装备的发展趋势进行预测。结果以冬季运动服装装备设计为例,提出了一种新的冬季运动服装装备设计思路,设计制作强调了功能性和用户体验的平衡。结论通过研究冬季运动服装装备的功能性设计实践及在中国冰雪大势的机遇下,提供了一种新的视角来看待冬季运动服装装备的设计,为未来的产品开发和创新提供有价值的参考。 展开更多
关键词 冬季运动服装装备 功能性 设计实践
下载PDF
现代皮革家具产品设计和未来趋势
20
作者 李一清 《中国皮革》 CAS 2024年第11期111-115,共5页
以现代皮革家具产品设计理念为出发点,探讨了现代皮革家具产品设计的内涵特征和现代皮革家具产品设计的多维互动。并在此基础上,分析了现代皮革家具产品设计的构建路径及案例,探讨了数字技术框架下的现代皮革家具产品设计的发展趋势,从... 以现代皮革家具产品设计理念为出发点,探讨了现代皮革家具产品设计的内涵特征和现代皮革家具产品设计的多维互动。并在此基础上,分析了现代皮革家具产品设计的构建路径及案例,探讨了数字技术框架下的现代皮革家具产品设计的发展趋势,从而得出现代皮革家具产品设计对于市场发展、技术进步和经济增长都具有重要意义的结论。因此,未来需要进一步加强研究和探索,提出更加创新和实用的设计方案,为行业发展做出积极贡献。 展开更多
关键词 现代皮革家具 产品设计 多重功能 智能化 数字化
原文传递
上一页 1 2 250 下一页 到第
使用帮助 返回顶部