摘要：随着我国城市化建设进程的加快,建筑领域信息化建设的进程也在逐渐加快,当代建筑领域对建筑信息模型(BIM)的价值利用提出了更高的要求,实现BIM技术在建筑工程全生命周期协同管理中的价值最大化是当前建筑业的迫切需求。为了解决现代建筑工程涉及多方利益相关者,且施工工序复杂,BIM技术在建筑工程领域的实际应用中还存在着施工信息海量多样、数据信息异构、信息交互性差等问题。本研究设计了基于知识图谱的建筑信息模型构建方法。首先梳理了建筑构件编码体系,并结合IFC标准体系,有效集成了形式多样的建筑知识信息。通过构建BIM共享本体与领域本体,分析建筑的知识框架,构建了建筑知识图谱,最后在装配式建筑的模型视图交付这一应用场景中展现其优势。结果表明,基于知识图谱的建筑信息模型构建方法为模型视图交付提供了新思路,可见其有助于解决BIM模型数据异构问题,有效提高建筑信息的交互性与重用性。

摘要：Objective： To provide essential information for peptide inhibitor design, the interactions of Eps15 homology domain of Eps15 homology domain-containing protein 1 （EHD1 EH domain） with three peptides containing NPF （asparagine-proline-phenylalanine）, DPF （aspartic acid-proline-phenylalanine）, and GPF （glycine-proline-phenylalanine） motifs were deciphered at the atomic level. The binding affinities and the underlying structure basis were investigated. Methods： Molecular dynamics （MD） simulations were performed on EHD1 EH domain/peptide complexes for 60 ns using the GROMACS package. The binding free energies were calculated and decomposed by molecular mechanics/ generalized Born surface area （MM/GBSA） method using the AMBER package. The alanine scanning was performed to evaluate the binding hot spot residues using FoldX software. Results： The different binding affinities for the three peptides were affected dominantly by van der Waals interactions. Intermolecular hydrogen bonds provide the struc- tural basis of contributions of van der Waals interactions of the flanking residues to the binding. Conclusions： van der Waals interactions should be the main consideration when we design peptide inhibitors of EHD1 EH domain with high affinities. The ability to form intermolecular hydrogen bonds with protein residues can be used as the factor for choosing the flanking residues.

摘要：中子辐射俘获反应在反应堆运行、核装置设计及核天体物理研究中起重要的作用.4πBaF_(2)探测装置有着高时间分辨能力、低中子灵敏度、高探测效率等优点,适合开展中子辐射俘获反应截面数据的测量.中国原子能科学研究院核数据重点实验室建立了伽马全吸收装置(Gamma total absorption facility,GTAF),该装置用28块六棱BaF_(2)晶体和12块五棱BaF_(2)晶体构成了外径25 cm,内径10 cm的球壳,覆盖了95.2%的立体角.利用GTAF在中国散裂中子源Back-n束线上,测量了197Au(n,γ)的反应截面数据.测量数据通过能量筛选、PSD方法、晶体多重性筛选进行了初步本底扣除,随后结合对^(nat)C及空样品的测量数据对本底进行了分析及扣除,获得了197Au俘获反应的产额,利用SAMMY程序拟合得到了^(197)Au在1—100 e V的共振能量、中子共振宽度和伽马共振宽度参数.实验测量结果与ENDF/B-VIII.0数据库符合良好,其共振参数存在一定差异,分析原因可能与GTAF能量分辨率、Back-n的中子能谱测量精度、以及实验本底扣除方法相关,这也是下一步工作的重点.

摘要：Tin monosulfide(Sn S), which is composed of earth-abundant elements, holds promise as useful high-performance solar absorber and thermoelectric material. In addition to the ground-state Pnma phase, a series of metastable phases in different crystalline structures have been reported experimentally or theoretically, yet the phase stability diagrams remain elusive. In this article, we provide a comprehensive materials design study of new phases of Sn S using first-principles global optimization structure search calculations. We find that the two-dimensional layered phases are generally more energetically favored than the three-dimensional connected phases. In addition, we discover several new phases with comparable energetics. Four lower-energy phases show clear phonon stabilities evidenced by an absence of imaginary modes. The electronic band structures, carrier transport properties, and absorption spectra of the newly discovered phases are investigated and discussed toward potential applications for solar cells and thermoelectric devices.

摘要：本文提出了一种基于机器学习的高效率集成电路可测性设计技术.该技术以自动收集的数据作为训练集,以决定系数为评价指标,为每类目标参数选择出最佳预测模型,并预测出基于不同配置参数的可测性设计结构所对应的目标参数,最后使用最优配置推断技术,以目标参数差值的加权和作为衡量指标,输出最优的可测性设计配置参数.实验数据表明,针对可测性设计技术中最重要的测试覆盖率参数,平均预测误差仅为0.0756%;根据目标参数差值的加权和的最小值情况,实现高效推断芯片可测性设计的最优配置参数.该技术的预测效果具有高可靠性,能够在保证高测试覆盖率的前提下,有效减少测试成本和面积开销等.

摘要：辑里湖丝手工制作技艺是我国国家级非物质文化遗产,但当前它的文化传播形式仅停留在丝织品上。在现代多元化发展的大环境下,如何进行传承和推广就成了一个难题。由于时代开放的多元化视野的出现,非遗跨界这种创造性的保护形式,给传统非遗手工艺的保护与发展提供了新的途径。非遗在传承与创新之间拉动了一个万亿级的服务市场后,出现了非遗“1+1”模式,带来了良好的社会效应,非遗跨界应用的融创精神也逐渐成为一种文化潮流。本课题在非遗“1+1”理念下进行创新探索,将传统非遗辑里湖丝手工艺与现代创意IP设计跨界融合,实现非遗传统手工艺的活态传承和创意式保护,彰显非遗手工艺最精彩的一面。

摘要：Integrating the topology design and printing method offers a promising methodology to realize large stretchability for ***,eco-friendly and waterbased Ag nanowires(NWs)inks were formulated and used for screen-printing highly stretchable and flexible interconnects on a large area(more than 335 mm x 175 mm).The stretchability of the interconnects was realized by introducing kirigami topology *** topology designed models were established to simulate the influence of kirigami patterns on wire compliance and to estimate the maximum stretchability via finite element analysis(FEA).The mechanic mechanism results demonstrate that an increase of the wave numbers results in larger stretchability,and the rectangular type of wave shows better stretchability than the zigzag and sine ***,the electrical and mechanical properties of the interconnects were measured and analyzed,and the experimental results were consistent with *** electric conductivity of the interconnects is stable at^10,427 S cm-1 even after 1000 cycles of 15.83 mm radius bending,280%stretching and 200%twisting-stretching deformation,demonstrating outstanding mechanical reliability of the *** topology designed interconnects have been applied in stretchable flexible light-emitting diode,indicating their broad application prospects in next-generation stretchable electronics.

摘要：随着新兴技术的迅速发展,领域软件对开发效率提出了新的要求.Datalog语言作为一门具有简洁语法和良好语义的声明式编程语言,能帮助开发人员快速开发和解决问题,近年来越来越受到重视与欢迎.但解决真实场景问题时,现有的单机Datalog引擎计算规模往往受限于内存容量大小,不具有可扩展性.为解决上述问题,设计并实现基于核外计算的Datalog引擎.方法首先设计一系列计算Datalog程序所需的支持核外计算的操作算子,然后将Datalog程序转换合成带核外计算算子的C++程序,接着方法设计基于Hash的分区策略和基于搜索树剪枝的最少置换调度策略,将相应的分区文件调度执行计算并得到最终结果.基于该方法,实现原型工具DDL(disk-based Datalog engine),并选取广泛应用的真实Datalog程序,在合成数据集以及真实数据集上进行实验,实验结果体现了DDL良好性能以及高可扩展性.

摘要：深圳国际艺术博览交易总部是一座造型独特,蕴含文化元素的超限高层建筑。建筑中下部平面外轮廓内缩,结构设计采用斜柱方式解决立面变化,在四个立面均有框架柱倾斜,特别是北侧和东侧的斜柱数量多、斜率大。结构体系采用带3道加强层的框架-核心筒结构。分析了竖向荷载下的结构水平变形,对由斜柱引起楼盖轴力作用的框架梁及楼板进行了分析和设计验算,对多柱倾斜转折的相交节点进行了有限元分析和构造设计,确保整体结构及构件、节点设计安全。

摘要：目的苏州御窑金砖制作技艺虽然被首批列入国家级非物质文化遗产名录,但知名度却不及同期其他国家级非物质文化遗产高。为了使御窑金砖制作技艺活化传承和保护工作获得社会公众更多的关注和支持,对其文创产品设计路径进行研究。方法分析苏州御窑金砖的造物思想、造型审美、工艺特点以及现有的文创产品情况,归纳和总结其设计的瓶颈和问题,针对问题结合文创产品特点探讨其设计路径,并通过设计实践进行论证。结果得出御窑金砖文创产品的造物思想,以及重塑审美情感、刻画工匠精神的设计路径。结论将古人凝结于非物质文化遗产中的无形财富提炼并物质化、产品化,是御窑金砖文创设计的重要思路,可以使更多人通过产品了解和认识其文化的精髓,唤醒大众的文化自觉。