Silicon ribbons and foils—state of the art

Research and development on crystal growth technologies for production of crystalline silicon ribbon have been under way now for three decades. I review here their progress toward establishment of manufacturing capabilities for silicon wafers for photovoltaic applications. I examine technology improvements which are currently being explored for a future generation of low cost solar products based on ribbon wafers, and discuss potential limits of the technology.     

Evaluating the mixing performance of a ribbon blender

This paper investigates the effects of processing and equipment parameters of a ribbon blender (i.e. loading method of lubricant, fill level, blade speed and blade design) on magnesium stearate homogeneity. A core sampling technique is used to obtain at least one hundred samples per sampling event, which are extracted throughout the blender and yield a thorough characterization of the entire bed. The results presented here can be used as a guideline to develop appropriate blending processes and characterization protocols for ribbon blenders.     

螺带式搅拌器在假塑液中的混合及放大的研究

本文综合研究了螺带式搅拌器在假塑性液体中的混合特性及动力特性，测定了双螺带，内外螺带及螺带螺旋３种类型搅拌器的功率常数Ｋｐ和Ｍｅｔａｎｅｒ常数Ｋｓ，并得出混匀操作和传质工艺过程的放大准则。     

Cubic polynomial patches through geodesics

We consider patches that contain any given 3D polynomial curve as a pregeodesic (i.e. geodesic up to reparametrization). A curve is a pregeodesic if and only if its rectifying plane coincides with the tangent plane to the surface, we use this fact to construct ruled cubic patches through pregeodesics and bicubic patches through pairs of pregeodesics. We also discuss the G¹ connection of (1,k) patches with abutting pregeodesics.     

U.S. regulatory perspectives on the back end of the fuel cycle: EUROSAFE 2013 proceeding

For the United States Nuclear Regulatory Commission and the reactor licensees it regulates, there are a number of contemporary issues associated with the back end of the fuel cycle including, the agency's revision to its “Waste Confidence” decision and the path-forward for high-level waste disposal. Additionally, the 2012 Blue Ribbon Commission on America's Nuclear Future recommendations, the future of reprocessing, consolidated interim spent fuel storage, and maintaining technical competence within the NRC in challenging budgetary conditions are addressed. I conclude that there is confidence in the feasibility of safe storage of spent nuclear fuel following the licensed operational life of a reactor and any change in high-level waste policy will require Congressional action to amend the Nuclear Waste Policy Act.     

扁平绕带爆炸容器的力学研究进展评述

评述了扁平绕带爆炸容器力学行为的理论和实验研究成果 ,对今后的研究方向和内容等做了展望并提出了一些建议     

换热器汽包封头泄漏原因分析

在检修雏护换热器汽包时发现汽包封头泄漏，在汽包封头的阀盖角焊缝处出现裂纹，裂纹平行于焊缝。采用宏观形貌分析、化学成分分析、金相检验、显微硬度测定、能谱分析以及应力分析等方法对泄漏处进行了分析。结果表明，汽包中水质含有较高浓度的碱性元素和氧、硫、氧等强腐蚀性元素，又在焊接残余应力的作用下发生应力腐蚀开裂，最后导致汽包封头产生泄漏。     

基于TOD模式的高铁站区规划设计初探

在我国快速城市化进程同时,高速铁路与站区的建设大力展开,城市与站区各方面的发展需求显得日益迫切。TOD模式作为协调城市交通与土地利用的有效途径,是一种较为理想的高铁站区发展模式。通过典型高铁站区的实地调研与问卷访谈,分析总结经验,结合TOD理念,并针对传统TOD局限,批判性提出高铁站区TOD规划策略,前瞻性探究高铁站区TOD典型规划模式与设计方法,阐述相关设计内容,对现阶段我国高铁站区规划建设具有良好的启发意义。     

浅析冷轧辊坯中的带状碳化物

从理论上分析了冷轧辊坯各生产工序与带状碳化物的关系 ,并指出与实际生产中存在的差异。以此为依据提出了在辊坯成型前预留锻比加一次高温扩散的控制方案     

AS-i--最简单的网络解决方案

本文重点介绍了AS-i总线技术的主要组成部分及特点。