摘要：Electronic structures in two kinds of boron structures are investigated by the first-principle density func- tional theory （DFT） calculations. One structure is from theoretical prediction, and the other is from experimental in- vestigation. Binding energy calculations suggest that the boron structure designed from theory is more stable than that made by experiment. Elastic constants calculations show that both structures are mechanically stable. The electronic structure results show that the theoretical designed structure exhibits semi-metal behavior, while the other structure exhibits metMlic character. No magnetic phenomenal is discovered from them. All the calculations are carried out by the first principles calculation through the MatC1oud platform, which is developed by our research group.

摘要：利用最小二乘法模拟计算汽车动力性指标,满足汽车车型设计直观、快速定性分析。配合制造厂整车动力参数经验修正,可满足定量分析。

摘要：The Accelerator Driven Sub-critical(ADS)system is a strategic plan to solve the nuclear waste problem for nuclear power plants in ***-energy particle accelerators and colliders contain long strings of superconducting devices,superconducting radio frequency cavities,and magnets,which may require cooling by 2 K superfluid helium(HeliumⅡ).2 K superfluid helium cryogenic system has become a research hot spot in the field of superconducting *** this study,the ADS Injector-I 2 K cryogenic system is examined in *** cryogenic system scheme design,key equipment,and technology design,such as the 2 K Joule–Thomson(J–T)heat exchanger and cryomodules CM1+CM2 design,are examined,in addition to the commissioning and operation of the cryogenic *** ADS Injector-I 2 K cryogenic system is the first 100 W superfluid helium system designed and built independently in *** ADS proton beam reached 10 Me V at 10 m A in July 2016 and 10 Me V at 2 m A in continuous mode in January 2017 and has been operated reliably for over 15,000 h,proving that the design of ADS Injector-I 2 K cryogenic system,the key equipment,and technology research are reasonable,reliable,and meet the *** research into key technologies provides valuable engineering experience that can be helpful for future projects such as CI-ADS(China Initiative Accelerator-Driven System),SHINE(Shanghai High Repetition Rate XFEL and Extreme Light Facility),PAPS(Platform of Advanced Photon Source Technology),and CEPC(Circular Electron-Positron Collider),thereby developing national expertise in the field of superfluid helium cryogenic systems.

摘要：针对纺织企业生产信息化和网络化发展的需要,设计了一种利用企业内部局域网,将企业的所有生产车间与各厂级的计算机进行联网,由主机监控、客户机分工序进行产量和质量控制、网络化在线监测的C/S模式的织机监测系统。分析了设计过程中遇到的实际问题并提出了解决方案。该系统能满足纺织企业实际生产的需要,提高了工作效率。设计方案实现了从制定计划到生产过程控制和生产数据统计的网络化管理。

摘要：从政治、社会、民众三方面分析了"中国风"在欧洲兴起的原因,对"中国风"在各国传播的重要传教士进行了介绍,并对"中国风"在欧洲园林中的实践及其消退过程进行了论述,以使人们进一步了解"中国风"对英法造园艺术的影响。

摘要：被列为广西壮族自治区非遗保护名录的三江侗族农民画是三江侗族民间艺术的直观体现,也是三江侗族民俗文化的重要载体。本文对三江侗族农民画艺术的探析与解读,有助于大众认识三江侗族人民的日常生产生活与社会习俗文化。将三江侗族农民画艺术的视觉语言应用到三江侗族文创品牌的包装设计中,不仅能够传播和发展三江侗族传统民俗文化,还可以加强三江侗族文化自信建设,为三江侗族乡村振兴提供具体可行的实践路径。

摘要：着重揭示光色的内在规律,以及来自于自然的色彩内在结构,传递着形成色彩关系的基本规律和调和规律,为人们提供色彩设计的语素,启示着色彩设计构思的灵感,是设计师进行色彩设计的有力工具,因而成为我们自觉地认识色彩和创造色彩的有效手段。

摘要：针对基于深度学习的三维模型分类方法应用于细粒度三维模型分类时效果较差的问题,提出一种端到端的细粒度三维模型分类框架,并构建基于深度集成及细节感知的细粒度三维模型分类网络.通过由深度集成学习构成的主干网络提取三维模型多视图下的整体形状特征;采用基于上下文细节感知模块的辅助网络捕捉各个视图下的局部细节特征;两者相互融合,实现端到端的弱监督细粒度三维模型分类.选用公开数据集FG3D中不同难度的子数据集Airplane,Chair和Car进行实验,获得了当前最好的细分类精度,分别达到了96.31%,85.44%和79.62%的分类准确率,表明该网络具有良好的细分类性能和普适性.

摘要：目的得益于显示技术和智能材料的发展,信息传播的载体越来越丰富。用户界面的形态从静止的平面转向可折叠、可变形等多样形态。用户获取信息的媒介也从二维空间转向多维空间。上述变化对设计表达和用户体验研究提出了新的问题与要求。方法通过文献调研、案例研究、比较分析和设计实践,归纳了柔性显示技术驱动下用户界面的形态特征,分析了柔性显示界面设计中所面临的问题。结论从信息维度、界面呈现和交互行为3个方面,通过设计实例论述了设计建议与策略。从信息与物理空间的融合、生态智能反馈等角度讨论了未来柔性用户界面的应用场景和设计可能性。

摘要：无人驾驶的一个重要组成部分是汽车行驶环境感知,使人们对可在低功耗移动设备上实时运行的高精度语义分割方法产生了强烈的需求.然而,在分析影响语义分割网络精度和速度的因素时可以发现,空间信息和上下文特征很难兼顾,而使用2路网络分别获取空间信息和上下文信息的方法,又会增加计算量及存储量.因此,提出从残差结构网络中划分出空间信息路径和上下文信息路径的想法,并基于此设计一个双路语义分割网络.该网络还含有用于融合2路多尺度特征的特征融合模块,以及用于优化上下文语义路径输出结果的注意力精炼模块.该网络基于PyTorch框架实现,使用NVIDIA1080Ti显卡进行实验,在道路场景数据集Cityscapes上,mIoU达到78.8%,运行速度达到27.5帧/s.