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Densification Mechanism of Warm Compaction and Powder Mixture Designing Rules 被引量:10
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作者 CAO Shun hua,HUANG Bai yun,QU Xuan hui,YI Jian hong(State Key Laboratory for Powder Metallurgy, Central South University of Technology, Changsha 410083, China) 《Journal of Central South University》 SCIE EI CAS 2000年第1期4-6,共3页
By phenomenological analysis of warm compaction, it is found that, compared with the contribution of particle plastical deformation to densification of powder compact,the particle rearrangement is a dominant densifica... By phenomenological analysis of warm compaction, it is found that, compared with the contribution of particle plastical deformation to densification of powder compact,the particle rearrangement is a dominant densification mechanism for powder warm compaction, and the plastical deformation of particles plays an important role in offering accommodating deformation for particle rearrangement and densifying powder compact at the final stage of pressing.In order to attain density gain as high as possible during warm compaction, six rules for designing warm compacting powder mixtures were proposed in detail. 展开更多
关键词 warm compaction densification mechanism powder mixture designing rule
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A Simulation Study for Typical Design Rule Patterns in 5 nm Logic Process with EUV Photolithographic Process 被引量:1
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作者 Yanli Li Qiang Wu Shoumian Chen 《Journal of Microelectronic Manufacturing》 2019年第4期33-39,共7页
5 nm logic technology node is believed to be the first node that will adopt Extremely Ultra-Violet(EUV)lithography on a large scale.We have done a simulation study for typical 5 nm logic design rule patterns.In a 5 nm... 5 nm logic technology node is believed to be the first node that will adopt Extremely Ultra-Violet(EUV)lithography on a large scale.We have done a simulation study for typical 5 nm logic design rule patterns.In a 5 nm logic photo process,the most appropriate layers for the EUV lithography are the cut layers,metal layers,and via layers.Generally speaking,critical structures in a lithography process are semi-dense patterns,also known as the“forbidden pitch”patterns,the array edge structures,tip-to-tip structures,tip-to-line structures(under 2D design rules),the minimum area structures,the bi-lines,tri-lines,…,etc.Compared to that from the 193 nm immersion process,the behaviors for the above structures are different.For example,in the 193 nm immersion process,the minimum area is about 2~3 times that of minimum pixel squared,while in EUV photolithographic process,the minimum achievable area is found to be significantly larger.In the simulation,we have kept aware of the stochastics impact due to drastically reduced number of photons absorbed compared to the DUV process,the criteria used for various structures of image contrast are tightened.For example,in 193 nm immersion lithography,we have usually set the minimum Exposure Latitude(EL)for the poly layer,the metal layer,and tip-to-tip pattern,respectively,at 18%,13%,and 10%.However,in EUV lithography,reasonable targets for the minima are,respectively,>18%,18%,and 13%.We have also studied the aberration and shadowing impact to the above design rule structures.We will present the results of our work and our explanations. 展开更多
关键词 5nm design rule minimum area minimum exposure latitude ABERRATION shadowing effect
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Open Rule-setting System Applied to Conceptual Design of Engines
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作者 李超 廖日东 左正兴 《Defence Technology(防务技术)》 SCIE EI CAS 2006年第3期165-168,共4页
关键词 发动机 开放性规则制定系统 概念设计 结构设计
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Robust Design Rule with Definite Purpose Character Based on Fuzzy Probability and Study of its Characteristics
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作者 ZHANG Long-ting, HE Zhe-ming, GUO Hui-xin Department of Mechanical Engineering, Changde Teachers University, Hunan 415003, P.R.China 《International Journal of Plant Engineering and Management》 2003年第2期94-102,共9页
The design target with definite purpose character of product quality wasdescribed in a real fuzzy number ( named fuzzy target for short in this paper), and its membershipjunctions in common use were given. According t... The design target with definite purpose character of product quality wasdescribed in a real fuzzy number ( named fuzzy target for short in this paper), and its membershipjunctions in common use were given. According to the fuzzy probability theory and the robust designprinciple, the robust design rule based on fuzzy probability (named fuzzy robust design rule forshort) was put forward and its validity and practicability were analyzed and tested with a designexample. The theoretical analysis and the design examples make clear that, while the fuzzy robustdesign rule was used, the fine design effect can be obtained and the fuzzy robust design rule can bevery suitable for the choice of the membership function of the fuzzy target; so it has a particularadvantage. 展开更多
关键词 definite purpose character fuzzy number robust design fuzzy probability fuzzy robust design rule
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JBoss Rules规则引擎应用程序设计 被引量:1
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作者 吴勇军 张艳 +1 位作者 靳光明 王友坚 《软件导刊》 2008年第12期24-25,共2页
论述了Java规则引擎的原理,提出了基于规则引擎的系统结构,研究了使用JBoss Rules进行应用程序设计的技术。
关键词 规则引擎 JBOSS ruleS JAVA程序设计
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Basic rules for rheologic forging process of semisolid alloy 被引量:1
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作者 ShumingXing LizhongZhang JianboTan ChuanlinZheng HanwuLiu PengZhang YunhuiDu 《Journal of University of Science and Technology Beijing》 CSCD 2004年第6期566-571,共6页
Semisolid mold forging is a major type of semisolid processing, which isdifferent from neither traditional mold forging nor traditional permanent casting. However,processing defects are often seen in work pieces becau... Semisolid mold forging is a major type of semisolid processing, which isdifferent from neither traditional mold forging nor traditional permanent casting. However,processing defects are often seen in work pieces because of lacking available rules for the processdesign and control. Some basic rules for the process design and control, simply named the shortestflowing length, pressure filling and the minimum uplifting mold pressure, are advanced in the paperbased on amount of researches and experiments. The equations to determine the major processparameters are given out such as the filling pressure, forming pressure and locking mold pressurefor the process design and control. The rules and equations are experimentally proved available andapplicable by several actual work pieces produced by the semisolid forging process. 展开更多
关键词 semisolid alloy rheologic forming mold-forge process design rule
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Automatic Virtual Entity Simulation of Conceptual Design Results—Part Ⅰ:Symbolic Scheme Generation and Identification 被引量:1
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作者 WANG Yu-xin LI Yutong 《Computer Aided Drafting,Design and Manufacturing》 2014年第1期46-54,共9页
The development of new products of high quality, low unit cost, and short lead time to market are the key elements required for any enterprise to obtain a competitive advantage. For shorting the lead time to market an... The development of new products of high quality, low unit cost, and short lead time to market are the key elements required for any enterprise to obtain a competitive advantage. For shorting the lead time to market and improving the creativity and performances of the product, a rule-based conceptual design approach and a methodology to simulate the conceptual design results generated in conceptual design process in automatical virtual entity form are presented in this paper. This part of paper presents a rule-based conceptual design method for generating creative conceptual design schemes of mechanisms based on Yan's kinematic chain regeneration creative design method. The design rules are adopted to describe the design requirements of the functional characteristics, the connection relationships and topological characteristics among mechanisms. Through the graphs-based reasoning process, the conceptual design space is expanded extremely, and the potential creative conceptual design results are then dug out. By refining the design rules, the solution exploration problem is avioded, and the tendentious conceptual design schemes are generated. Since mechanical, electrical and hydraulic subsystems can be transformed into general mechansims, the conceptual design method presented in this paper can also be applied in the conceptual design problem of complex mechatronic systems. And then the method to identify conceptual design schemes is given. 展开更多
关键词 design automation conceptual design rule-based reasoning mechanical systems
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Zero-Energy-Buildings in Different Climates: Design Strategies, Simulation and Prognosis METHOD for Energy Demand
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作者 Udo Dietrich Franz Kiehl Liana Stoica 《Journal of Energy and Power Engineering》 2014年第7期1192-1202,共11页
The European Directive 2010/31 claims that by 2020 only (nearly-) ZEB (zero-energy-buildings) may be built. To reach this goal, it is pertinent for buildings to be energetically optimized first. The remaining ener... The European Directive 2010/31 claims that by 2020 only (nearly-) ZEB (zero-energy-buildings) may be built. To reach this goal, it is pertinent for buildings to be energetically optimized first. The remaining energy demand must then be covered by on-site renewable energies (PV, geothermal, etc.). With the area of use (energy demand) and the size of the building envelope/estate (renewable energy supply) in competition with each other, the maximum number of building stories will be most likely limited. For 15 different climatic locations worldwide, the energy demand of optimised office rooms has been simulated and compared with the possible renewable energy production on site. For every location, a good correlation has been found between the simulated energy demand and data like heating and cooling degree hours. Correspondent linear equations are given here. As another result, the maximum numbers of possible stories for ZEBS have been derived, being between 3 and 10 depending on the location. 展开更多
关键词 Zero-energy-building adaptive comfort model thermal building simulation different climates office building building design rules.
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Hybrid approach for fuzzy system design
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作者 李映 赵荣椿 +1 位作者 张艳宁 焦李成 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 2004年第3期299-303,共5页
A hybrid approach for fuzzy system design based on clustering and a kind of neurofuzzy networks is proposed. An unsupervised clustering technique is firstly used to determine the number of if-then fuzzy rules and gene... A hybrid approach for fuzzy system design based on clustering and a kind of neurofuzzy networks is proposed. An unsupervised clustering technique is firstly used to determine the number of if-then fuzzy rules and generate an initial fuzzy rule base from the given input-output data. Then, a class of neurofuzzy networks is constructed and its weights are tuned so that the obtained fuzzy rule base has a high accuracy. Finally, two examples of function approximation problems are given to illustrate the effectiveness of the proposed approach. 展开更多
关键词 Fuzzy systems design fuzzy rule base CLUSTERING neurofuzzy networks.
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基于行为设计的儿童洗护品包装设计策略研究
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作者 周祺 申浩敏 刘畅 《日用化学工业(中英文)》 CAS 北大核心 2024年第9期1125-1132,共8页
为提升儿童在日常洗护过程中的体验感,从而培养儿童良好的日常卫生清洁习惯,同时提高儿童洗护品牌的服务质量与核心竞争力,从行为设计的角度为儿童洗护品包装提出相关设计策略。首先,通过线上与线下调研的方式了解当前市面上儿童洗护品... 为提升儿童在日常洗护过程中的体验感,从而培养儿童良好的日常卫生清洁习惯,同时提高儿童洗护品牌的服务质量与核心竞争力,从行为设计的角度为儿童洗护品包装提出相关设计策略。首先,通过线上与线下调研的方式了解当前市面上儿童洗护品包装设计现状,并归纳整理设计特点;然后,基于儿童洗护品包装设计现状与儿童对洗护行为的态度,明确在儿童洗护品包装设计中介入行为设计的合理性与必要性;最后,基于行为设计在儿童洗护品包装中的设计要点,结合福格行为模型与峰终定律,从提升用户动机、降低使用难度、增强包装行为提示效果、把握用户体验过程中的“峰值”与“终点”4个方面提出相关设计策略,并运用案例分析法诠释相关设计策略的具体实施方法,侧面印证了设计策略的可用性与可靠性,期望能为儿童洗护品包装设计提供新的设计思路。 展开更多
关键词 洗护品包装设计 行为设计 福格行为模型 峰终定律 设计策略
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从规律认知到类型建构——城市设计的入门探索 被引量:1
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作者 蔡永洁 黄林琳 沙永杰 《建筑师》 CSSCI 2024年第1期68-74,共7页
城市空间具有明确的建构规律,它通过建设单元地块划分与类型建筑的组织,展现出“建筑—街坊—街区”的空间逻辑。为帮助首次接受城市设计训练的高年级学生快速认知这一逻辑,本文通过国际现代城市成熟案例的分析,完成空间建构规律总结,... 城市空间具有明确的建构规律,它通过建设单元地块划分与类型建筑的组织,展现出“建筑—街坊—街区”的空间逻辑。为帮助首次接受城市设计训练的高年级学生快速认知这一逻辑,本文通过国际现代城市成熟案例的分析,完成空间建构规律总结,将其作为操作工具并完成一个当代城市街区的城市设计。具体操作分两步走:首先通过建筑的组合建构城市街坊;然后通过街坊的组合构成城市街区。不同寻常的是,要求学生在上海城市语境下完成一个抽象基地的设计工作,从而避开复杂现实条件的干扰,专注空间规律,以此揭示这种简单逻辑的深刻性及其跨越文化的属性,从而验证其对城市设计的普适意义。 展开更多
关键词 城市设计 入门训练 空间规律 建筑类型
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基于HDL Designer的FPGA静态测试技术研究
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作者 刘静静 黄显果 +1 位作者 王振 常卫 《工业控制计算机》 2021年第12期68-69,72,共3页
为保障电力行业软件产品FPGA测试质量,结合电力系统相关FPGA软件产品研究,利用Mentor HDL Designer工具进行静态测试,为有效精简测试结果条目,提高静态测试效率和质量,提出了一种基于测试项目的最小规则库优化方案,并给出了搭建测试环... 为保障电力行业软件产品FPGA测试质量,结合电力系统相关FPGA软件产品研究,利用Mentor HDL Designer工具进行静态测试,为有效精简测试结果条目,提高静态测试效率和质量,提出了一种基于测试项目的最小规则库优化方案,并给出了搭建测试环境遇到的典型问题解决办法。最后对最小规则库进行验证,测试结果表明,该方案能有效保障FPGA软件产品测试质量。 展开更多
关键词 静态测试 HDL designer 最小规则库 FPGA
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Computer-Aided Rapid Variant Design System for Hydraulic Support
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作者 赵继云 李炳文 +1 位作者 苗运江 顾力强 《International Journal of Mining Science and Technology》 SCIE EI 1998年第2期153-156,共4页
The paper gives a detail analysis on the necessity of rapid hydraulic support design, and presents a computer-aided rapid variant design system for hydraulic support. The system integrates the type selection and embod... The paper gives a detail analysis on the necessity of rapid hydraulic support design, and presents a computer-aided rapid variant design system for hydraulic support. The system integrates the type selection and embodiment design of hydraulic support. Case-based reasoning and rule-based reasoning are the main reasoning methods. Several crucial problems are discussed. 展开更多
关键词 HYDRAULIC support CAD VARIANT design case-based REASONING rule-BASED REASONING
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ViP设计法则指导下的洗鼻器设计研究
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作者 周瑄 何佳新 《创意设计源》 2024年第2期28-33,共6页
以ViP设计法则为指导,以洗鼻器设计为切入点,依据ViP设计法则中的理论模型,解构洗鼻器设计的产品层、交互层与情境层,预设未来变应性鼻炎患者的鼻腔护理情境,并提出构建未来变应性鼻炎患者洗鼻器护理产品的设计策略框架,展开健康干预设... 以ViP设计法则为指导,以洗鼻器设计为切入点,依据ViP设计法则中的理论模型,解构洗鼻器设计的产品层、交互层与情境层,预设未来变应性鼻炎患者的鼻腔护理情境,并提出构建未来变应性鼻炎患者洗鼻器护理产品的设计策略框架,展开健康干预设计,完成洗鼻器设计实践。该设计能够为未来医疗健康产品的研究提供新的设计思路。 展开更多
关键词 ViP设计法则 洗鼻器设计 变应性鼻炎
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Design of New Thiadiazole Derivatives with Improved Antidiabetic Activity
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作者 Chiépi Nadège Dominique Dou Georges Stéphane Dembele +5 位作者 Mamadou Guy-Richard Kone Nanou Tiéba Tuo Fandia Konate Adama Niare Panaghiotis Karamanis Nahossé Ziao 《Computational Chemistry》 2023年第3期67-80,共14页
Diabetes is a serious, long-term (or chronic) disease that occurs when a person’s blood sugar levels are high because their body cannot produce enough insulin, or does not produce enough insulin or that it cannot eff... Diabetes is a serious, long-term (or chronic) disease that occurs when a person’s blood sugar levels are high because their body cannot produce enough insulin, or does not produce enough insulin or that it cannot effectively use the insulin it produces. According to the literature, this disease has several causes, but certain types of diabetes such as type 2 diabetes are most closely linked to a metabolic disorder due to abdominal obesity. Thus, the number of individuals with type 2 diabetes is increasing. It is with this in mind that we work to improve human health. The aim of this study is to design new derivatives of 1,3,4-thiadiazole with improved antidiabetic activity by the mathematical model of multiple linear regression (MLR) established previously. The analysis of the effect on the substituents influencing the antidiabetic activity, fourteen (14) new molecules coded CDTH were generated and presenting values of the potential of inhibitory concentration higher than that of the base compound (pIC50 = 2.526). But thirteen (13) of these new compounds belong to the domain of applicability of the MLR model established previously. In addition, the thermodynamic quantities of formation formed at 298K have been calculated. Lipinski’s rule and pharmacokinetic properties proved that five (5) (TH4, TH9, TH10, TH13 and TH14) new molecules can be used as diabetes medicine. 展开更多
关键词 design Antidiabetic Activity 1 3 4-Thiadiazole Lipinski’s rule
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基于粗糙集理论和正交设计的冠心苏合滴丸制药生产工艺参数优选的方法研究
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作者 崔红新 郭颖 +4 位作者 陈晓莹 朱芳静 韩景仁 赵迪 黄琼 《中南药学》 CAS 2024年第9期2410-2414,共5页
目的利用粗糙集理论和正交设计研究制药生产工艺参数之间的规律,探求优选生产工艺参数优选的数学方法。方法采用粗糙集理论方法,以冠心苏合滴丸生产工艺参数优选为案例,利用正交设计试验预处理数据,建立决策表,通过粗糙集规则模型动态... 目的利用粗糙集理论和正交设计研究制药生产工艺参数之间的规律,探求优选生产工艺参数优选的数学方法。方法采用粗糙集理论方法,以冠心苏合滴丸生产工艺参数优选为案例,利用正交设计试验预处理数据,建立决策表,通过粗糙集规则模型动态分析工艺参数对结果的影响,优选最佳工艺参数。结果当冠心苏合滴丸生产工艺的参数药物与基质的配比分别与药液温度和冷却剂温度的水平逐渐增高时,溶散时限的平均水平呈现低-高-低的动态变化趋势;但当药液温度和冷却剂温度水平逐渐增高时,溶散时限的平均水平呈现动态的递减变化趋势。药物与基质的配比为1∶2,药液温度为70℃,冷却剂温度为12~14℃时,为冠心苏合滴丸生产工艺的参数的最佳组合。结论粗糙集理论能够动态、全面地分析制药生产工艺参数与试验指标之间的内在关系,提供了一种研究提高制药生产工艺质量的数学方法。 展开更多
关键词 粗糙集理论 正交设计 决策规则模型 冠心苏合滴丸
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面向智能辅助决策的飞行器安控系统构建研究
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作者 孙贵新 聂凯 《舰船电子工程》 2024年第7期117-122,共6页
新一代人工智能技术能够提高飞行器试验安控系统的辅助决策能力,满足地面安控目标数量增多、故判规则量增大、故判时效性高等新需求,具有广阔的应用前景。在对飞行器试验地面安控需求分析的基础上,设计面向智能辅助决策的地面安控系统... 新一代人工智能技术能够提高飞行器试验安控系统的辅助决策能力,满足地面安控目标数量增多、故判规则量增大、故判时效性高等新需求,具有广阔的应用前景。在对飞行器试验地面安控需求分析的基础上,设计面向智能辅助决策的地面安控系统总体框架,增加了数据与模型管理模块;接着构建了辅助决策知识库,主要包括故障弹判据、速度判据、位置判据和预示落点判据等规则库;在此基础上提出数据和规则协同驱动的故障预测方法。该系统既利用历史积累试验数据对深度神经网络模型进行训练,又利用规则库提高专家经验对模型预测精度的贡献,能够提高故障智能预测能力,满足飞行器安控智能辅助决策需求。 展开更多
关键词 飞行器试验 安全控制系统 智能辅助决策 架构设计 规则库 故障预测
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基于粗糙集理论的均匀设计阿魏酸合成工艺因素规律的方法研究
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作者 崔红新 王子翰 +3 位作者 张泞杰 杨帅朋 赵迪 黄琼 《中南药学》 CAS 2024年第9期2405-2409,共5页
目的利用粗糙集理论研究药物合成生产过程中生产因素之间的内在规律,探求最优合成工艺方案的方法。方法采用粗糙集理论方法,以阿魏酸合成工艺为案例,利用均匀设计试验预处理,形成基于粗糙集的决策表,建立粗糙集规则模型。通过决策规则... 目的利用粗糙集理论研究药物合成生产过程中生产因素之间的内在规律,探求最优合成工艺方案的方法。方法采用粗糙集理论方法,以阿魏酸合成工艺为案例,利用均匀设计试验预处理,形成基于粗糙集的决策表,建立粗糙集规则模型。通过决策规则分析工艺因素对试验指标的影响,优选最佳合成工艺。结果阿魏酸合成工艺的反应时间水平与阿魏酸收率水平呈线性增加的趋势(P<0.01),原料配比、吡啶量因素水平与阿魏酸收率水平并没有线性增加的趋势(P>0.05)。当试验三因素都取7水平时,试验结果最好,为最佳组合。结论粗糙集理论方法能够全面地分析药物合成工艺因素与试验结果之间的内在动态规律,为提高药物合成工艺质量,提出了一种独特的优选方法和思路以供参考。 展开更多
关键词 粗糙集 均匀设计 因素 决策规则模型 阿魏酸
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基于关联规则的发射系统敏捷响应要素辨识
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作者 岳玉娜 吴艳 +1 位作者 张博宇 齐志会 《现代防御技术》 北大核心 2024年第4期137-145,共9页
当今高性能发射系统追求的大负载、轻量化、低成本、敏捷响应等设计要求通常是相互矛盾的,必须考虑多种约束条件下,多参数匹配的综合优化,才能突破系统各性能指标相互制约的瓶颈。针对以上问题,采用关联规则挖掘方法研究了发射系统设计... 当今高性能发射系统追求的大负载、轻量化、低成本、敏捷响应等设计要求通常是相互矛盾的,必须考虑多种约束条件下,多参数匹配的综合优化,才能突破系统各性能指标相互制约的瓶颈。针对以上问题,采用关联规则挖掘方法研究了发射系统设计因素的影响,建立了发射系统设计因素关联规则挖掘模型。在“支持度-置信度”模式的基础上,引入附加评估度量Kulc和IR,提高挖掘结果的准确性。通过工程算例,研究了设计参数对发射系统敏捷响应能力的影响。算例结果表明,提出的方法能够识别对敏捷响应能力起关键作用的设计变量,实现精炼设计空间、简化优化问题,以及提高设计优化效率的目的。 展开更多
关键词 关联规则 数据挖掘 发射系统 敏捷响应 设计要素 设计优化
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绿色设计在包装设计中的实践——以无印良品个护产品包装为例 被引量:2
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作者 王涵 朱珺 《设计》 2024年第8期55-57,共3页
通过设计为资源与环境问题提出某种解决方式。采用调查研究、文献研究及个案研究等,首先,梳理绿色设计的发展历程;其次,以无印良品为例,从品牌创建理念聚焦到个人护理产品的经典包装设计,尝试探讨了绿色设计的设计法则和具体应用;最后,... 通过设计为资源与环境问题提出某种解决方式。采用调查研究、文献研究及个案研究等,首先,梳理绿色设计的发展历程;其次,以无印良品为例,从品牌创建理念聚焦到个人护理产品的经典包装设计,尝试探讨了绿色设计的设计法则和具体应用;最后,探讨无印良品作为绿色设计代表所创造的价值贡献,以及对当代中国包装的借鉴意义。无印良品作为绿色设计代表具有借鉴价值。绿色设计在我国包装设计中具备实践可能性。 展开更多
关键词 绿色设计 3R原则 包装设计 无印良品 个护产品
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