摘要：The effects of various structure factors on the properties(superelasticity mainly) of Cu-based shape memory alloys(SMAs) were systematically evaluated in this review article through literatures combining with our work. It is concluded that besides the decisive role of grain orientation, the grain boundary(GB) characteristics also play important roles in the superelasticity, which include GB area, GB type, GB morphology and GB direction in descending order of the effect significance. According to the above results, the prior principles of structure design are proposed for high-performance Cu-based SMAs from most to least important:(1) obtaining grain orientation with high phase transformation strain;(2) increasing grain size or reducing GB area;(3) obtaining straight low-energy GBs, especially low-angle GBs;(4) trying to make GB direction parallel to external stress. Consistent with the main or all principles, the bamboo-like-grained and columnar-grained(CG) Cu-based SMAs show excellent comprehensive properties.

摘要：本文结合董家村渡槽施工期工程项目,利用ANSYS有限元软件建立了渡槽施工期仿真计算模型,对埋设在大体积混凝土中的冷却水管的温度场进行计算,并分析水管的布置方式、直径、通水流量、水流速度及冷却水温等因素对温度场的影响。结果显示,在渡槽施工期选择合理的冷却水管布置方案,可以有效降低混凝土中的温度,从而达到防止混凝土产生裂缝的目的。

摘要：Inhibition of VEGFR-2 signaling pathway has already become one of the most promising approaches for the treatment of *** this study,we describe the design,synthesis,and biological evaluation of a series of O-linked indoles as potent inhibitors of *** these compounds,18 showed significant anti-angiogenesis activities via VEGFR-2 in enzymatic proliferation assays,with IC50 value of3.8 nmol/L Kinase selectivity profiling revealed that 18 was a multitargeted inhibitor,and it also exhibited good potency against VEGFR-1,PDCFR-α and β.

摘要：五四前后留学归来的一批学者,如滕固、宗白华、马采、邓以蛰等,对中国艺术史研究的最大贡献之一就是推动中国艺术史研究由传统模式向现代转型,即在艺术史观、研究方法、写作体式等方面明显区别于传统的艺术史研究,这种转型是基于中西文化交融格局中形成新的文化力量和学者的创造性活动共同作用的结果。

摘要：Inhibition of VEGFR-2 signaling pathway is one of the most promising approaches for the treatment of cancer. In this paper, we reported the design, synthesis, and biological evaluation of a series of biphenylurea derivatives as VEGFR-2 inhibitors. Among these compounds, 39 exhibited potent inhibitory activity against VEGFR-2 both in vitro and in vivo. The antiangiogenesis activity of 39 was further confirmed by both tube formation assay and chick chorioallantoic membrane assay.

摘要：冶金工程设计对促进冶金工业的可持续发展具有特殊的重要作用。中国已经具备了现代大型钢铁厂的流程设计、工艺设计、设备设计以及系统集成能力,创建并应用动态-精准设计体系,建立了现代冶金厂工程设计理念、理论和设计方法,设计建设了具有国际先进水平的新一代可循环钢铁厂,在流程高效化、生产集约化、装备大型化等方面取得显著成效。与此同时,冶金关键单元技术和工程化集成技术得到重点突破,在关键、共性、重大技术领域取得一系列科技成果,对冶金工程设计的理论与实践提供了有效支撑。未来中国冶金工程设计应以冶金流程工程学和动态-精准设计理论与方法为核心,构建冶金工程设计创新理念、理论及设计方法的完整体系。

摘要：Landfill leaks pose a serious threat to environmental health,risking the contamination of both groundwater and soil *** investigation of these sites is essential for implementing effective prevention and control *** self-potential(SP)stands out for its sensitivity to contamination plumes,offering a solution for monitoring and detecting the movement and seepage of subsurface ***,traditional SP inversion techniques heavily rely on precise subsurface resistivity *** this study,we propose the Attention U-Net deep learning network for rapid SP *** incorporating an attention mechanism,this algorithm effectively learns the relationship between array-style SP data and the location and extent of subsurface contaminated *** designed a synthetic landfill model with a heterogeneous resistivity structure to assess the performance of Attention U-Net deep learning ***,we conducted further validation using a laboratory model to assess its practical *** results demonstrate that the algorithm is not solely dependent on resistivity information,enabling effective locating of the source distribution,even in models with intricate subsurface *** work provides a promising tool for SP data processing,enhancing the applicability of this method in the field of near-subsurface environmental monitoring.

摘要：钢铁是经济社会发展不可或缺的重要基础材料,钢铁产业是国民经济的重要基础产业。分析研究了钢铁制造流程的物理本质和主要特征,以冶金流程工程学的观点阐述了现代钢铁制造流程功能拓展的重大意义。阐述了钢铁冶金工程知识体系及其发展演化进程,论述了基础科学、技术科学和工程科学知识体系的形成与发展历程,指出冶金流程工程学是宏观冶金学,是面向钢铁冶金全流程和产业层次的工程科学。研究分析了在冶金流程工程学指导下现代钢铁冶金工程设计体系和方法的创新,阐释了概念设计、顶层设计和动态精准设计的理念、内涵和方法;介绍了首钢京唐钢铁厂的工程设计创新及其应用实绩。

摘要：Materials informatics has emerged as a promisingly new paradigm for accelerating materials discovery and *** exploits the intelligent power of machine learning methods in massive materials data from experiments or simulations to seek new materials,functionality,and principles,*** specialized facilities to generate,collect,manage,learn,and mine large-scale materials data is crucial to materials *** herein developed an artificial-intelligence-aided data-driven infrastructure named Jilin Artificial-intelligence aided Materials-design Integrated Package(JAMIP),which is an open-source Python framework to meet the research requirements of computational materials *** is integrated by materials production factory,high-throughput first-principles calculations engine,automatic tasks submission and monitoring progress,data extraction,management and storage system,and artificial intelligence machine learning based data mining *** have integrated specific features such as an inorganic crystal structure prototype database to facilitate high-throughput calculations and essential modules associated with machine learning studies of functional *** demonstrated how our developed code is useful in exploring materials informatics of optoelectronic semiconductors by taking halide perovskites as typical *** obeying the principles of automation,extensibility,reliability,and intelligence,the JAMIP code is a promisingly powerful tool contributing to the fast-growing field of computational materials informatics.

摘要：Controlled laboratory experiments are proved to be a valuable tool for investigating changes in underground physical properties and the related response of surface geophysical *** self-potential(SP)method is widely used in mineral resource exploration due to its direct correlation with underground electrochemical *** paper presented the design and construction of an experimental platform based on a multi-channel SP monitoring *** proposed platform was used to monitor the anodizing corrosion process of different metal blocks from a laboratory perspective,record the real-time SP signal generated by the redox reaction,as well as investigate the geobattery mechanism associated with the natural polarization process of metal mineral *** experimental results demonstrate that the constructed SP monitoring platform effectively captures time-series SP signals and provides direct laboratory evidence for the geobattery *** measured SP data were quantitatively interpreted using the simulated annealing algorithm,and the inversion results closely match the real *** finding highlights the potential of the SP method as a promising tool for determining the location and spatial distribution of underground *** study holds reference value for the exploration and exploitation of mineral resources in both terrestrial and marine environments.