涂又光高等教育思想述评

涂又光是中国著名的哲学家、教育家。他为高等教育思想领域贡献了很多精辟见解,他的一些思想对当前高等教育实践仍然具有参考和指导作用。他认为,大学的真谛是学术自由、追求真理;科学文明应该实行全球化,而人文文明应该实行本土化;人文包括人文知识和人文精神,人文的本质在于人文精神。     

Die Entwicklung der Verfahrenstechnik an der TU Kaiserslautern

In 1970 the twin university of Kaiserslautern-Trier was founded, from which the two independent universities of Trier and Kaiserslautern emerged in 1975. In 2003, in order to emphasize the focus of the University of Kaiserslautern in engineering, it was renamed to äTechnical University of Kaiserslauternä. In the 50 years of its existence, the development and further development of process engineering was one of the focal points of the mechanical and process engineering department. The article illuminates this path of development and presents the then and current research areas of the four process engineering chairs of the TU Kaiserslautern.     

HEVC标准中整数变换的FPGA实现

新一代视频编码标准(High Efficiency Video Coding,HEVC)中整数DCT编码支持大小从4×4到32×32的TU块,运算量巨大。通过优化MCM单元来减少运算量,通过硬件电路复用来减少硬件资源消耗,同时使用转置模块来加速流水线,并且能适应各种不同大小的TU块。实验代码通过Verilog HDL编写,并在Altera Arria GX EP1AGX90EF1152C FPGA上综合。结果表明,该结构等待时延最多为32个时钟周期,每个时钟周期能处理32个采样点,在184 MHz的时钟频率下,能实时处理60 f/s(帧/秒)的UHD(Ultra-High-Definition 7 680×4 320)视频信号。     

DTMB接收终端射频性能测试问题解析

针对目前DTMB接收终端测试中射频解调和信道解码性能部分的相关测试技术进行阐述,结合测试经验和仪器使用知识,对实际测试过程中经常遇到的关键问题和难点进行分析解释,并提出相应的解决方法,为DTMB接收终端的接收解调模块的研发和测试提供参考.     

堵港蓄淡水库水体淡化预测研究

本文采用Delft3D三维分层模型研究堵港蓄淡水库水体淡化过程。用浙江省漩门二期堵港蓄淡水库长历时观测资料对模型进行验证和参数率定,水位、盐度及其分层的计算结果和观测资料基本吻合;在此基础上,该模型用于预测2004～2006年漩门二期堵港蓄淡水库在设计水文条件下运行时库内水体淡化过程及其效果。计算结果表明水库表层水体受径流影响较大,盐度下降很快,致使盐度分层明显,枯水年局部表层水体会出现返咸现象;深潭底部水体淡化很慢,应采取排盐措施。     

多元·介入 ——荷兰代尔夫特理工大学的建筑教育

代尔夫特理工大学建筑学院成立于1904年,是欧洲规模最大的建筑学院之一,开设有建筑学、建筑技术、土地与项目管理、城市规划等专业,并在＂技术与精神、自然与人工＂等辩证哲学思想的指导下开展工作。创新与多元是代尔夫特理工大学建筑学院教学的重要特色。在科学技术,特别是信息化、数字化技术飞速发展的背景下,建筑学院基于＂网络学院（NetworkFaculty）＂理念,借助信息化技术,将校内校外、国内国外的多家研究教学机构整合起来,强调国际化氛围与视野。在对该建筑学院介绍分析之后,进一步探讨了荷兰建筑师的特征及其值得学习之处。     

Deep learning for part identification based on inherent features

The identification of parts is essential for the efficient automation of logistic processes such as part supply in assembly and disassembly. This paper describes a new method for the optical identification of parts without explicit codes but based on inherent geometrical features with Deep Learning. The paper focusses on the improvement of training of Deep Learning systems taking into account conflicting factors such as limited training data and high variety of parts. Based on a case study in turbine industry the effects of steadily growing training data on the robustness of part classification are evaluated.     

汾河中游液压坝群对洪水演进的影响

在中小河流核心区修建液压坝群是实现生态修复的重要措施,由此带来的河道行洪及液压坝群的经济、合理运行问题值得深入研究。基于Delft3d开源软件,建立了汾河核心区(二坝—义堂)水流运动二维数值模型,分别模拟了2(选取了两场洪水)、5、10年三种不同频率洪水,分析了不同运行工况下15座液压坝对洪水演进的影响,重点分析了对流场特性、水位变化的影响。结果表明,该模型可精确模拟液压坝群对洪水演进的影响;边滩坝对水位影响较小;对10、5年一遇洪水,应将15座坝的主槽坝全部塌坝行洪;对于2年一遇洪水,奇数断面的坝应竖起,偶数断面的主槽坝塌坝为比较经济、安全的运行方案。     

Capabilities of TRANSURANUS code in simulating power ramp tests from the IFPE database

Investigations of fuel behavior are carried out in close connection with experimental research, operation feedback and computational analyses. OECD NEA sets up the “International Fuel Performance Experiments (IFPE) database”, a public domain database on nuclear fuel performance experiments with the purpose of model development and code validation. The objective of the activity (performed in the framework of the IAEA CRP FUMEX-III project) is to investigate the pellet-clad interaction mechanism and the capability of TRANSURANUS code in simulating the phenomena, processes occurring in the fuel rod during the power ramps, with focus on the parameters influencing the cladding failures. The experimental database adopted is the Studsvik PWR Super-Ramp subprogram, part of the IFPE database, which consists of 28 pressurized water reactor fuel rods power ramped at burnup from 28 to 45 MWd/kgU. Relevant results by TRANSURANUS are presented in connection with the experimental evidences. Focus is given on the PCI/SCC failure, demonstrating that the failure threshold, available in TRANSURANUS, results conservative both in case of KWU and W rods.     

基于Delft3D的苏州市渭塘镇河道水动力水质模拟

为探究苏州市渭塘镇平原河道水质提升的可行方案,基于Delft3D构建了该镇区河道的水动力水质耦合模型,采用Delft3D-FLOW模块对镇区河道2021年10月的水动力时空特征进行模拟,确定了镇区活水泵站与活水推流器的流量;采用Delft3D-WAQ模块,以CODMn、NH₃-N、TP为主要评价指标,论证了旁路净化设施规模的合理性。结果表明:模型水动力模拟结果较为理想,活水效果好;确定老镇片1号活水泵站流量为1.0 m³/s,确定珍珠湖片每组活水推流器感应流量为0.4 m³/s;水质模拟结果较为理想,镇区河道水体通过规模为2万m³/d的旁路净化设施处理后,水质能达到GB 3838—2002《地表水环境质量标准》的Ⅳ类水标准,水质提升效果明显。