摘要：为减少主观因素干扰,满足用户多样化感性需求,提出基于BP神经网络优化遗传算法的智能座舱感性意象设计方法。从用户角度出发,获取用户感性意象并划分强度,应用因子分析法降维得到目标意象,获取新能源汽车座舱样本,应用聚类分析法筛选得到优势样本,并结合形态分析法提取智能座舱中控造型特征因子。基于BP神经网络构建特定目标意象与造型特征因子的映射模型,得到两者函数关系后将其作为适应度函数展开遗传算法分析,优选特定意象下造型因子的最优组合,完成评估方法与优选方法的结合。根据优势因子组合进行设计实践以验证方法实用性,结果表明该方法能有效满足用户多维感性需求,为智能座舱造型设计多样化提供新的思路和参考。

摘要：Researchers have been attempting to characterize heterogeneous catalysts in situ in addition to correlating their structures with their activity and selectivity in spite of many ***,we review recent experimental and theoretical advances regarding alkyne selective hydrogenation by Pd‐based catalysts,which are an important petrochemical *** catalytic selectivity for the reaction of alkynes to alkenes is influenced by the composition and structure of the *** progress achieved through experimental studies and atomic simulations has provided useful insights into the origins of the *** important role of the subsurface species(H and C)was revealed by monitoring the catalyst surface and the related catalytic *** atomic structures of the Pd catalytic centers and their relationship with selectivity were established through atomic *** combined knowledge gained from experimental and theoretical studies provides a fundamental understanding of catalytic mechanisms and reveals a path toward improved catalyst design.

摘要：随着社会不断的发展、全球化不断的推进,现代平面商业广告设计中出现了大量形象符号化的现象。从符号学的角度出发,通过对这一现象的分析,探求平面广告设计中视觉语言发展趋势的思考。

摘要：包装是消费者眼中产品形象最直观的体现。为增强农业及其产品的竞争力,要重视农产品的包装设计,从包装中体现产品价值,提升产品附加值,增强产品的市场竞争力,以此助力创意农业的发展。农产品包装是农业商业化的必要一环,是农产品市场化的重中之重。本文将从农产品包装方面论述艺术赋能创意农业的重要性。

摘要：通过对创意经济经典文献的分类综述,文章对创意经济的主要特征进行了分析。在此基础上提出创意经济的发展受到教育水平、经营环境以及媒体平台三大支点的影响和制约。通过采集跨国横截面数据进行结构方程建模,进一步检验了三者对消费性创意经济和生产性创意经济的支撑原理。实证说明,三大支点对于创意经济的发展具有不同程度的正向影响。最终依据实证结论,给出了我国城市发展创意经济的政策建议。

摘要：为了兼顾翼型在各个飞行状态下的气动效率,基于Isight优化设计平台对自适应翼型前缘进行了气动优化设计研究.首先对Hicks-Henne型函数进行了改进,实现了翼型前缘的参数化描述;然后采用拉丁超立方实验设计方法生成样本点,并运用CFD软件进行翼型流场的气动计算,进而利用该样本数据完成对RBF神经网络的训练;最后对神经网络近似模型应用多岛遗传算法进行优化.以NACA 0006翼型为例,采用上述组合优化策略以升阻比为目标函数进行优化设计.仿真结果表明:改进后的Hicks-Henne型函数较好地描述了翼型前缘;组合优化方法显著提高了翼型气动优化效率.

摘要：A new 3D layout algorithm to lay rectangular tiles on the 3D hull surface model is proposed to improve the algorithm performance in accelerating layout process and enhancing design accuracy. Three times optimizations are carried out upon the original basic algorithm, namely optimization of calculating range, separation of surface flattening computation from laying computation, and optimization of interior point distribution. By testing, the generated surface layout drawing by the refined system is fairly applicable to guide the actual tiles＇ coating process.

摘要：在文献 [1]计算吹风装置收缩段流场方法的基础上 ,提出了轴对称的设计方法 ,用该方法研究了几种收缩曲线对收缩段内流场的影响 ,并从中选择一条能满足吹风装置设计要求的曲线作为型面曲线。计算结果表明

摘要：Faraday pseudocapacitors take both advantages of secondary battery with high energy density and supercapacitors with high power density,and electrode material is the key to determine the performance of Faraday *** metal oxides and nitrides,as the two main kinds of pseudocapacitor electrode materials,can enhance energy density while maintaining high power *** advances in designing nanostructured architectures and preparing composites with high specific surface areas based on transition metal oxides and nitrides,including ruthenium oxides,nickel oxides,manganese oxides,vanadium oxides,cobalt oxides,iridium oxides,titanium nitrides,vanadium nitrides,molybdenum nitrides and niobium nitrides,are addressed,which would provide important significances for deep researches on pseudocapacitor electrode materials.

摘要：Deformation prediction and the analysis of underground goaf are important to the safe and efficient recovery of residual ore when shifting from open-pit mining to underground *** address the comprehensive problem of stability in the double mined-out area of the Tong-Lv-Shan(TLS)mine,which employed the dry stacked gangue technology,this paper applies the function fitting theory and a regression analysis method to screen the sensitive interval of four influencing factors based on single-factor experiments and the numerical simulation software *** influencing factors of the TLS mine consist of the column thickness(d),gob area span(D),boundary pillar thickness(h)and height of tailing gangue(H).The fitting degree between the four factors and the displacement of the gob roof(W)is reasonable because the correlation coefficient(R2)is greater *** establishing29groups that satisfy the principles of Box-Behnken design(BBD),the dry gangue tailings process was re-simulated for the selected sensitive *** a combination of an analysis of variance(ANOVA),regression equations and a significance analysis,the prediction results of the response surface methodology(RSM)show that the significant degree for the stability of the mined-out area for the factors satisfies the relationship of h>D>d>*** importance of the four factors cannot be disregarded in a comparison of the prediction results of the engineering test stope in the TLS *** comparing the data of monitoring points and function prediction,the proposed method has shown promising results,and the prediction accuracy of RSM model is *** relative errors of the two test stopes are1.67%and3.85%,respectively,which yield satisfactory reliability and reference values for the mines.