Burton Brothers of New Zealand

Abstract

The New Zealand firm of Burton Brothers was engaged in a wide spectrum of enterprise, icluding portrait, topographic and commercial photography. It came into being withing 20 years of the founding of the Otago Settlement. The firm soon became widely known for its ethnoghraphic photographs of the South Pacific, and later for its output of photographic postcards under the name of Muir & Moodie. Thomas M. B. Muir, who joined the firm early on, was related both to James Weaver Allen, a noteworthy pioneer photographer in the colony, and to Fred Muir who carried his camera to the unexplored interior of the South Island of New Zealand and brougllt back views of the hitherto unknown lakes, waterfalls and natural wonders to fascinated townspeople. Not surprisuingly, therefore, Burton Brothers and Muir & Moodie are household names in New Zealand, and are also well known to librarians and ethnographers throughout the world.     

Modeling strategies for unsteady turbulent flows in the lower plenum of the VHTR

Validation simulations are presented for turbulent flow in a staggered tube bank, geometry similar to the lower plenum of a gas-cooled high temperature reactor. Steady 2D RANS results are compared to unsteady 2D RANS results and experiment. The unsteady calculations account for the fact that nonturbulent fluctuations (due to vortex-shedding) are present in the flow. The unsteady computations are shown to predict the mean variables and the total shear stress quite well. Previous workers’ results indicate that 3D simulations are needed to obtain reasonable agreement; present results indicate 2D is sufficient. Best practices are based on requirements for the ASME Journal of Fluids Engineering.     

规范CJJ94－2003中的质量控制环节探讨

工程规范的主要作用是通过施工过程控制来保证工程质量，从质量管理的角度分析，《城镇燃气室内工程施工及验收规范》（CJJ94－2003）存在缺陷。在对燃气相关规范及监理规定、工程质量管理条例分析的基础上，确立了质量控制思想，并以此出发，界定规范中与质量控制有关的定义和范畴。通过分析，得出CJJ94－2003中质量控制环节存在定义缺陷、试验与验收混同、吹扫环节被忽略、质量控制中控制单位考虑不足、竣工验收内容的片面性等五个方面的缺陷。在对规范的分析中创新性地引入质量控制思想，所得出的规范缺陷将对该规范的下次修订有所帮助。     

一种VLAN设备的设计与实现

由于具有较高的安全性、灵活性和可扩展性，VLAN技术得到了广泛的应用。针对当前VLAN设备市场存在的缺点，设计开发了型号为IDS-2003的VLAN设备。IDS-2003具有24个10BaseT／100BaseTx以太网接口、2个千兆以太网口，以及1个ATM口，支持基于端口和标签2种方式划分VLAN，最多达4096个。IDS-2003设计简单，CPU为MPC862，以太网交换机芯片选用Allayer的A1320，AL125和A11022；ATM接口利用了MPC862的ESAR功能。软件采用模块化设计。IDS-2003作为一种宽带业务接入器，具有丰富的业务接入能力，能同时接入数据、语音和图像业务，可满足各种不同速率的要求。     

Donald Winslow Fiske (1916-2003).

Reports the death of Donald Winslow Fiske (1916-2003). Fiske's contributions to methodology in the field of personality research, including the development of the multitrait-multimethod approach, are noted. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

高密存储介质磁性纳米颗粒薄膜与纳米超晶格结构研究进展(英文)

钴基合金和铁基合金磁性纳米颗粒薄膜和纳米超晶格结构,由于具有较高的矫顽力和各向异性能,较小的粒子尺寸分布和能形成“单域”结构等特性,从而成为颇有潜力的高密存储介质。最近几年,人们竞相研究其制备方法,其中主要包括真空淀积法、液相化学合成法和离子注入法等,采用各种措施来提高存储介质的热稳定性和其他磁学性能,并取得巨大进展。     

数控转塔冲床的新进展

介绍了第八届国际机床展览会上展出的数控转塔冲床的基本特点，分析了国内外厂商近年来取得的进步，指出国产冲床的发展方向。     

诺基亚手机电源电路的特点

诺基亚手机在市场上的使用极多，不过从维修的角度来看，虽然机型众多，但它们在电路上的差异却并不是很大，只有两种：     

全站仪用于钢岔管水压试验变形观测

介绍了全站仪极坐标测量系统在岔管水压试验变形观测中的成功运用实例,测量方案合理可行,测试结果准确,为同类工程的测量提供了借鉴的方法。