26Cr2Ni4MoV转子钢的奥氏体再结晶及其消除组织遗传

以大型发电机及汽轮机转子用钢为对象,研究了奥氏体再结晶及消除组织遗传的原因,以及不同加热制度对奥氏体再结晶消除组织遗传的影响规律。     

论楚国丝绸中的蟠龙飞凤纹与商周兽面纹的传承关系

蟠龙飞凤纹出自战国时期马山1号楚墓,构图精巧,装饰华丽,是先秦时期风格独特的纹样类型。通过分析图像中的各个构成元素,分别从题材、构图等角度比较蟠龙飞凤纹和商代、西周青铜器中流行的系列兽面纹,可知楚国丝绸中的蟠龙飞凤纹由兽面纹演变而来,其中延续了商代、西周的文化基因,表现了以北极星为中心、龙凤为辅的星象系统,在题材种类、造型方式、色彩等方面融入了楚人的审美喜好,主要体现了楚人的天体崇拜理念,最终也证明商、西周、楚国的纹样之间存在清晰的传承关系。     

傣族织锦的艺术特征与传承

文章阐述了傣族织锦的艺术特征及传承发展现状,对其纹样、内涵及应用进行了分析,提出了傣锦传承和发展的措施与方法,为傣锦的保护和传承提供参考。     

养心一涧水,习静四围山--浙江俞源古村落的聚落形态分析

从总体布局、建筑组合、细部特征三个方面对浙江俞源古村落的聚落形态进行分析。这三者之间并非相互孤立的,而是相互影响和紧密关联着的,并作为个整体,体现了该聚落的同质性、独特性与生长性。     

Construction of robust class hierarchies

This article discusses the problem of constructing robust class libraries. Further design criteria include the flexibility of class libraries, the efficiency of the implementations, and their safe extensibility. We show that it is possible to design robust libraries to satisfy any two of the requirements at the same time. Although the solution may require an exponential growth in the number of classes compared to the original design, this apparent class explosion can be controlled by generating only the necessary additional classes automatically. As an application demonstrating both the theoretical problems and the power of our generator approach, the design of a library modelling data structures and algorithms for graphs is considered. Both the discussion and the results in this article generalize to other domains. Copyright © 2000 John Wiley & Sons, Ltd.     

光纤拉曼放大器的优化设计

文章介绍了一种设计多波长泵浦光纤拉曼放大器（FRA）的方法以及怎样用此方法实现需要的增益曲线。利用这种方法仿真实现了增益接近20dB、平坦度小于0.2dB的拉曼放大器，它与现有的拉曼放大器相比具有更平坦的增益曲线。     

面向对象的测井仪器动态库设计

测井仪器有不同的种类,使用的测量原理、刻度方法和测量手段也各不相同.在不改动系统软件的前提下,要求测井地面系统能方便快捷地配接各种测井仪器.动态链接库技术是按照一定规范和接口约定,编写一种新的测井仪器操作库,动态安装到测井系统中,增强了可复用性、可维护性,达到动态添加新仪器的目的.     

Intergenerational dynamics of digital transformation in family firms

The integration of digital technologies and processes presents a multifaceted and complex challenge for family firms, as they must navigate new technologies while maintaining their unique familial attribute. Moreover, the issue of intergenerational inheritance adds an additional layer of complexity, as succession must be effectively executed to ensure the continued success and survival of the family firm in the digital age. Together, these challenges pose a significant threat to the sustainability and competitiveness of family firms. To gain a deeper understanding of how these challenges can be effectively addressed, the study utilizes data from the 2016 Chinese Private Enterprises Survey to identify the factors influencing family firms' digital transformation and the role of entrepreneurs' characteristics in this process. From the perspective of intergenerational inheritance, the study finds that both the willingness of entrepreneurs to hand over power and the willingness of their children to take over firm power have a moderating effect on the relationships between entrepreneurs' characteristics and firms’ digital transformations. This study also verifies the heterogeneous effects from the type of business digitalization, location of the firm, and educational level of the children.     

嵌入式操作系统SolCS中优先级反转问题研究

研发一个嵌入式实时操作系统时需要解决很多任务与共享资源之间的关系问题.介绍了优先级反转问题的理论模型,详细分析和比较了解决优先级反转问题的常规方案--优先级继承协议和优先级天花板协议.重点针对一个自主研发的嵌入式实时操作系统SolCS,提出了一种新的优先级反转问题解决方案并应用于其中,获得一个强实时能力的嵌入式操作系统.     

综合考虑投资成本和经济收益的快速切回机组布点方案

随着大型火电机组快速切回(FCB)技术的成熟,将FCB机组作为大停电后黑启动电源的设想成为可能。规划FCB机组的布点位置,应兼顾工程实际。文中首先采用图论方法推导了最优布点方案的性质,证明已知活跃顶点个数的最优布点方案具有继承性。继而提出采用递推法对FCB机组布点方案进行寻优。然后,建立了FCB机组布点方案的经济效益指标,基于递推法计算结果,依据该指标筛选出同时满足安全性和经济性要求的FCB机组最优布点方案。算例分析结果表明,递推法较常规方法计算效率高、鲁棒性强。并且,结合经济性指标,得到的结果方案可作为实际系统黑启动电源规划的决策依据。