Optimal design of left-lane line extensions considering non-yielding maneuvers at the beginning of the permitted phase

In order to restrict non-yielding maneuvers of left-turning vehicles,an optimal design of left-lane line extensions is proposed to solve the problem.A field observation was conducted to collect a data set of left-turning vehicles at the beginning of a green phase at two similar intersections(one with a permitted phase and the other with a protected phase).The comparative analysis shows no significant difference in the speed distribution using either a permitted phase or a protected phase,but it reveals that a permitted phase can lead to a larger acceleration when the left-turn vehicles pass through the conflict points.Those indicate the existence of non-yielding maneuvers of left-turn vehicles at signalized intersections with a permitted phase.Optimal designed left-lane line extensions contain two types of segments,circular curves and transition curves,and they are only related to four geometry parameters of an intersection.The proposed method is easy to use and it can offer reference for intersection channelization and traffic organization.

Analysis of Extension Categorical Data Mining Process for the Extension Interior Designing

On the basis of extension architectonics,this paper researches the process of extension categorical data mining for extension interior design. In accordance with the theory of extension data mining,the extension categorical data mining for the extension interior design can be divided into data preparation,the operation of mining and knowledge application. The paper expatiates the main content and cohesive relations of each link,and emphatically discusses extension acquisition,analysis extension,categorical mining extension,knowledge application extension and other several core nodes that are related with data. Through the knowledge fusion of extension architectonics and data mining,the paper discusses the process of knowledge requirements with multiple classification under different mining targets. The purpose of this paper is to explore a whole categorical data mining process of interior design from extension design data to the design of knowledge discovery and extension application.

MECHANICAL PRODUCT EXTENSIVE INTELLIGENT CONCEPTUAL DESIGN

Based on extenics, an extensive functional information model(function-behavioral action-structure-environmental constraint) of the mechanical productintelligent conceptual design is developed, and the mechanism of theoretic structure solutions isproduced, the mapping relations between function-behavior and behavior-structure are analyzed. Themodel is applied to the filling material system's conceptual design to verify validity.

A Model for the Design Process Gene Based on the Extensible Basic-element and the Mutation of the Design Process Gene

In this paper a method is developed to model the design process gene based on the extensible basic-element with the purpose of design process optimization and reuse. First, the principle of genetic engineering based design process optimization and reuse is put forward and analyzed. Second, the extensible basic-element model of the design process gene is established based on the models of the design process base and the base pair through analyzing the concept and structure of the design process gene and the extensible basic-element as well as its extensibility. Third, the features of divergence and scalability of the extensible basic-element model of the design process gene are discussed for carrying out the extension translation to the design process gene by way of inserting, deleting and updating design process bases. Finally, an example of building extensible basic-element models for the design process base, base pair and design process gene in mechanical product design and the mutation process of the design process gene in airplane design is presented which demonstrates the application of the method proposed in this paper.

Stagnate to Extensive： The Design of Capital City Development in Coastal Archipelago Raja Ampat

This discussion of Raja Ampat case, a subdivision of West Papua province, is related to the global warming issue where small islands will be narrowed as a result of sea level rise. Furthermore, it is related to autonomy regulations where each municipality and district has their own policy. The capital of Raja Ampat District in the east of Indonesia is developed from traditional place into central urban area. Raja Ampat, a naturally beautiful island, is located in a remote area famous for its diving spot for foreign tourists, amazing underwater life, bird watching, and to experience a traditional lifestyle with specific tropical fauna and flora. The problem is how to develop a city which needs to be in a stagnant extensive phase but： neither in vertical nor horizontal development to protect forest as conservation area due to limited land area. Identification and design methods used in this research is to develop settlement in Raja Ampat archipelago area which has around 610 large and small islands, atoll, and have 4.860 km shoreline with only 34 islands inhabited. The urban design for this archipelago of 1：6 ratios of land and ocean needs to be different, since it is dominated by water. With the limited land area resources, the development needs to be focused on the ocean area by optimizing land area.

Meta-silencer with designable timbre

Timbre,as one of the essential elements of sound,plays an important role in determining sound properties,whereas its manipulation has been remaining challenging for passive mechanical systems due to the intrinsic dispersion nature of resonances.Here,we present a meta-silencer supporting intensive mode density as well as highly tunable intrinsic loss and offering a fresh pathway for designable timbre in broadband.Strong global coupling is induced by intensive mode density and delicately modulated with the guidance of the theoretical model,which efficiently suppresses the resonance dispersion and provides desirable frequency-selective wave-manipulation capacity for timbre tuning.As proof-of-concept demonstrations for our design concepts,we propose three meta-silencers with the designing targets of high-efficiency broadband sound attenuation,efficiency-controlled sound attenuation and designable timbre,respectively.The proposed meta-silencers all operate in a broadband frequency range from 500 to 3200 Hz and feature deep-subwavelength sizes around 50 mm.Our work opens up a fundamental avenue to manipulate the timbre with passive resonances-controlled acoustic metamaterials and may inspire the development of novel multifunctional devices in noise-control engineering,impedance engineering,and architectural acoustics.

基于TRIZ与可拓创新方法的机械产品概念设计方法研究

提出一种机械产品概念设计的创新方法,对概念设计阶段进行细分,将发明问题解决理论(TRIZ)与可拓创新方法的优势相结合,建立了基于两者的概念设计过程模型。通过建立用户需求基元模型与共轭分析法,确定产品的需求与功能之间的关联性,构建产品功能分解树,得到根源冲突;然后运用TRIZ工具集提取工程参数查询对应的原理解,通过可拓变换生成多种概念方案;最后利用优度评价法,实现对概念方案的量化评价与优选。以小型管道清淤机器人为例进行系统的创新设计,验证了该方法实用性和有效性。

深层、超深层定向钻井中若干基础研究进展与展望

深层、超深层定向钻井具有“垂深大与水平延伸远”的双重特征,受到复杂地层、高温高压、超长裸眼等多重因素约束,其安全高效作业面临着更大的全方位技术挑战。为此,着眼于深层、超深层定向钻井的提速提效问题,系统总结了定向钻井的发展概况与技术特点,选取了深层、超深层定向钻井中力学方面的几个重要基础问题,分析了国内外专家学者的相关研究进展和最新研究成果,最后展望了深层、超深层定向钻井基础理论研究发展趋势并提出相关建议。研究结果表明:①大小偏差融合控制算法兼顾了井眼轨迹的控制精度、光滑度等多目标约束,适应于深层、超深层条件下井眼轨迹实时控制要求;②合理优化振动减阻工具个数、安放位置及其激励力幅值,可显著降低井下管柱摩阻,并有效提高机械钻速;③基于误差补偿机制的机械钻速融合预测模型既保留了机理模型的可解释性,又具有较高的预测精度;④套管复合磨损预测模型突破了经典“单月牙”模式的局限性,实现了复合模式下套管磨损形状与深度的同步预测。结论认为,深层、超深层定向井和水平井是未来油气井工程的重要发展方向之一,需要加强多因素耦合机理、钻井延伸极限、机理与数据融合驱动等方面的基础研究,以推动复杂油气井工程基础理论的创新与发展,为深层、超深层钻井工程技术进步提供必要的基础理论支撑。

基于可拓语义的传统纹样在食品包装设计中的应用

为了满足消费者将传统文化意蕴与食品包装相结合的需求,提出一种可拓语义下的传统纹样特征提取设计研究方法。通过对唐代金银器纹样加以分析筛选,确立目标纹样基元,构建可拓语义模型;对纹样基元进行语义词汇可拓分析,得到最大设计价值区间。利用图解思维对特征语义进行可视化分析,加以形状文法进行推导演变。以某款月饼包装设计为例,采用该方法设计出数款应用方案,并对其进行模糊综合评价,获得了较高满意度。

万泉河流域设计洪水分析

编制河流治理开发方案,需要合理可靠的设计洪水成果。以万泉河设计洪水计算为例,分析了历史洪水重现期,进行了水文站洪水系列一致性处理,建立了干流水文站之间的洪峰、洪量相关关系,插补延长了洪水系列,确定了水文站设计洪水成果。根据流域具有调蓄作用水库的兴建时间,计算不同分区的区间设计洪水。分析流域洪水遭遇情况,采用典型年法和同频率法分析设计洪水地区组成,采用分区时段洪量控制选取相对不利的典型年实测洪水过程为典型,推求防洪控制断面设计洪水过程线。

STEAM教育理念下数学拓展课教学设计研究

为了达成培育真实情境问题解决能力的目标,围绕以跨学科为核心特征的STEAM教育,寻求数学拓展课的优化路径.从确定以真实情境问题解决能力为目标、设计体现多维化特征的教学内容、实施彰显数学化脉络的教学活动、设定关注学习过程的评价侧重点4个维度切入,剖析STEAM教育理念对数学拓展课教学的指导价值,提炼教学基本理念,并构建了STEAM教育理念下的数学拓展课教学基本流程.最后归纳总结出教学设计与实施过程中应注意的关键点:防止过度数学生活化,妥善处理情境虚实;关注协作创新过程,培育工程设计思维;合理融入人文艺术,凸显数学学科本质.

传承与创新视角下的金农“漆书”字库字体及延展应用设计

目的 分析金农“漆书”的审美特征,并应用到当代汉字设计中,使所设计的字库产品既有金农书法的金石气韵,又符合当代的应用语境,以此促进金农“漆书”艺术的传承和字库风格多元化的发展。方法 从诸多博物馆调研金农“漆书”作品并分析整理,以南京博物院典藏金农“漆书”作品《盛仲交小传》为蓝本,其他作品为参考,从分析造型中的点、横、竖、撇、捺、折、钩等笔画元素入手,凝练与总结“漆书”视觉符号和文化内涵;除了遵循字库字体的基本原则外,还运用“完全复现法”“旧字新构法”“异字结合法”“形意合一法”的创新与传承性的原则与方法,对提取的元素进行重构、融合、创新,最后结合用户思维的研发策略进行设计应用。结论 结合金农“漆书”书法元素进行字库字体设计,可以提升字库产品的文化内涵与价值,让人们更多地了解金农的“漆书”艺术,有利于书法艺术传承与创新,有助于探讨解决书法艺术与当代字体设计之间的矛盾关系,为书法艺术在字库字体设计中的应用实践提供有益参考。

基于可拓语义和美度计算的苗族服饰纹样设计

针对目前苗族服饰中苗绣纹样设计只探讨其文化内涵而忽略自身的美学价值,且苗绣纹样的布局设计存在模糊性的问题,提出一种基于可拓语义和美度计算的苗族服饰纹样设计方法。通过提取苗族服饰中最具代表性的苗绣纹样的文化美学特征,构建可拓语义表征模型;并运用可拓变换获取纹样设计元素集;构建以平衡度、对称度、节奏度和整体度为主的美度指标体系,运用综合美度计算公式得到美度值最高的纹样布局样本,以此指导苗绣纹样设计元素的布局设计,最终得到新的纹样图案,以此研究黔东南苗族服饰纹样在现代服饰品设计中运用的可行性,为苗族服饰纹样的保护与传承以及创新设计提出新的发展方向。

基于用户多维感官需求的苗绣产品可拓设计方法

分析用户对于苗绣产品体验过程的感官需求,提出基于用户多维感官需求的苗绣产品可拓设计方法,重塑苗绣产品新体验。从用户的感官体验需求的角度出发,从视觉、触觉、嗅觉、心觉多个维度进行分析,剖析用户在多维度感官体验上对苗绣产品的需求意象,明确用户需求意象与设计因子匹配关系,运用可拓设计相关理论把苗绣产品设计因子进行重构。通过理论和实践为苗绣产品创新设计提供参考。用户多维感官需求分析优化了设计师进行设计时对用户需求分析的准确度,同时能够让用户在与苗绣的互动过程中获得全新的产品体验。

异类多维复合元间的传导规则及其在可拓创新设计中的应用

在可拓创新设计研究中,很多创新设计要素都可以用多维复合元进行形式化表达,且很多都属于异类多维复合元(Heterogeneous Multi-dimensional Compound-elements,HMdCes),它们之间存在着各种复杂的关系,目前还缺乏对这些HMdCes间的传导规则的研究。本文基于基元变换的传导规则,建立了内部不含基元运算的HMdCes间的传导规则和内部含多个基元或基元运算的HMdCes间的传导规则,可以为可拓创新设计创意的生成提供更多推理依据。以ZDY系列一级减速器的功能与结构设计为例,利用文中所建立的HMdCes间的传导规则,验证了规则的普适性和有效性。

基于可拓符号学的茶山瑶族服饰图案创新设计

作为金秀瑶族五大支系之一的茶山瑶,茶山瑶族的服饰纹样以及服饰色彩搭配给人以强烈的视觉冲击感和民族认同感。现代茶山瑶族服饰文化衍生产品设计要最大限度发挥茶山瑶族服饰文化的独特优势。基于可拓符号学理论,提取茶山瑶服饰图案元素,并构建相应的可拓基元模型,结合具体设计实践,验证该方法的可行性,以此传承和弘扬茶山瑶族服饰文化,探索对茶山瑶族传统服饰文化加以保护和寻求创新发展的新途径。

东兴市农旅融合产业发展研究

农旅融合发展能够有效整合自然资源和人文资源,促使旅游业与农业良性互动与深度融合,激活农村经济,实现乡村振兴。通过系统研究东兴市农旅融合发展滞后的原因,并提出相应策略。强化农村旅游发展规划,加强配套基础设施建设,打造农旅融合全产业链等举措,增强农旅融合发展动力,实现东兴市农旅深度融合发展,有效解决“三农”问题。

软件系统设计方案的多属性可拓评估模型研究

软件系统设计方案涉及多方面的影响因素,设计方案选型更是一项复杂的决策分析过程。针对选型过程中的决策问题,文章提出了一种多属性可拓评估模型。首先通过给出软件系统设计方案评价指标的选取原则,建立软件系统设计方案评价指标体系,并对不同类型的评价指标进行规范化处理,然后建立相应的可拓关联度的计算模型,最后基于可拓关联度的大小获得最优设计方案。

可拓语义和FKANO下阳新布贴现代家具设计

针对文创产品文化内涵性和功能实用性难以平衡的现象,提出可拓语义和模糊KANO模型(FKANO)结合的方法,以实现文化内涵性与实用性相兼顾的设计初衷。以阳新布贴为对象,首先,根据可拓语义分析,通过文化层次理论系统地提炼词汇语义,再运用图解思维转化词汇语义,对图解语义进行评估,以计算可拓区间并构建可拓图解编码库;其次,以躺椅设计为例,通过FKANO模型分析躺椅的用户需求,明确设计要素和文化要素后,依据可拓图解编码库进行详细设计;最后,通过层次分析法(AHP)和逼近理想解排序法(TOPSIS),对产生的3个设计方案进行遴选,并设计系列家具。将可拓语义分析和FKANO模型相结合,从用户需求方向出发科学开展文创家具设计,更好地满足人们对于文化共鸣和实用性的期望,也为文化的提取和应用提供理论借鉴。

基于可拓创新方法的民族图案再设计--以壮族织锦图案为例

在新时代弘扬文化自信自强的背景下,为保护民族图案,使传统民族图案在新时代焕发活力,提高民族图案再设计效率,将可拓创新方法应用于民族图案的再设计中。提出一种民族图案可拓设计方法,其通过基元理论和可拓分析方法将图案基元的形态特征等显性信息和语义描述等隐性信息进行表征,并建立图案基元库进行图案信息的储存,运用可拓变换方法在设计实践阶段一次性生成足量的创意图案设计方案。最后本文以壮族织锦图案为例,实现了具有民族特色和美好寓意的创意图案在现代服饰上的应用,验证了该方法可以为民族图案的保护和传承提供一种思路,助力于推进传统文化现代创意设计实践的发展。