《高分子化学实验》课程的教学改革与学生实践能力培养

《高分子化学实验》课程是培养高分子专业人才的重要实践环节。本文就如何激发学生的学习兴趣和创造欲望、开设综合性实验项目、实验教学与科研相结合和改进实验考核方式等方面的措施,对《高分子化学实验》的教学内容和教学方法进行改革。旨在培养和提高学生的实践能力和创新能力,强化学生的综合素质和应用能力。     

理化实验室的设计与建设

以某新建理化实验室为例,阐述了实验室的建设过程,指出了建设理化实验室的设计思想和遵循原则：介绍了普通理化实验室设计与建设过程中必备的功能区域及基本要求;从电力系统、通风系统、供排水和供排气系统几方面探讨了筹建理化实验室的设计思想,强调了合理规划设计对实验室长期可靠运行的重要性。     

Applications of Terahertz Spectroscopy in the Field of Construction and Building Materials

Abstract: In last two decades, rapid development in the field of terahertz (THz) technology has opened new possibilities for creating innovative imaging and sensing systems. Although the applications of THz technology in different sectors constantly increase, the construction industry lags behind them. The aim of this article is to review the current applications of THz spectroscopy in research and industry related to construction and building materials, along with the key drawbacks of technology and recommendations for future use. The review concludes that THz spectroscopy and imaging have promising potential and provide many opportunities for applications in construction and building materials characterization.     

建筑企业社会网络关系及对市场竞争力的影响:基于项目合作视角

建筑市场是一个由复杂社会网络关系构成的系统,企业的竞争力和其在网络结构中的位置和把握网络机会的能力相关.论文从项目合作视角出发,通过建立建筑业企业社会网络模型,并利用区域性案例进行实证.结果发现建筑业不同类型的企业在网络中的位置具有显著不同,服从幂律分布,但本地国有企业占有明显优势,存在市场开放度和竞争不足问题;进一步的,论文通过实证得出了企业市场竞争力受中心度和结构洞中的限制度指标的双重影响,且两个因素之间存在幂律关系.论文的实证结论证明,在不完全竞争条件下,企业要提高自身在建筑市场的竞争力,必须尽可能利用地缘社会关系和政府资源关系,创造和利用网络结构洞,巩固自身在网络中的位置,尽力提高网络个体中心度.     

Lie Tori of Type BC 2 and Structurable Quasitori

Structurable quasitori are introduced and shown to give all Lie tori of type BC ₂ via the Kantor construction. Structurable quasitori, including Jordan quasitori, are classified. The methods include a use of generalized quadrangles of order (2,t).     

Presentations of Grothendieck Constructions

We will give quiver presentations of the Grothendieck constructions of functors from a small category to the 2-category of 𝕜-categories for a commutative ring 𝕜.     

The row–column multiplication of high dimensional rhotrices

This paper presents the row–column multiplication of rhotrices that are of high dimension. This is an extension of the same multiplication carried out on rhotrices of dimension three, considered to be the base rhotrices.     

Cross coursing in mathematics: physical modelling in differential equations crossing to discrete dynamical systems

We give an example of cross coursing in which a subject or approach in one course in undergraduate mathematics is used in a completely different course. This situation crosses falling body modelling in an upper level differential equations course into a modest discrete dynamical systems unit of a first-year mathematics course.     

利用级联方法构造的布尔函数

级联构造作为布尔函数的主要构造方法之一,具有结构简单、实现快速灵活等优点,被广泛用于构造实用的布尔函数。文中给出了一种通过迭代来构造密码学性质好的布尔函数的级联方法,详细测试了这类函数主要的密码学性质及代数正规型项数,并从理论上分析了构造的这类函数能够具有平衡性、最优的代数次数、高非线性度、高的代数免疫阶等多种好的密码性质。文中的结果表明,提出的级联构造方法能够用于构造密码学性质良好的布尔函数。