基于C51的氨含量监测系统软件设计

本文提出了使用C51高级语言将浮点数转换为BCD码的算法和实现过程。提出对具有指数特性的电化学传感器的快速校正算法。详细论述了存储、查询和打印函数的设计思想。     

连接架复合模设计

根据连接架的结构特点,分析了零件的工艺性,结合公司降成本要求,对模具传统工艺进行合并,开发了落料成形冲孔复合模.详细介绍了模具的整体结构和各个部件之间的运动关系.生产试验表明模具设计合理,结构可靠,能保证零件的成形质量,满足批量生产的要求.     

底敞口充气浮箱研究和试验

提出底敞口充气浮箱的结构和概念。经模型模拟试验研究分析，经典浮力定律可用于这种浮箱的浮力计算；其动充气状况还具有一定的允许伤损面积。它的研究将为水陆两用车辆增大浮力，缩小外形，提高水上自下而上能力和潜驶潜伏提供具有诱惑力的工程应用前景。     

改良氧化沟工艺的活性污泥异常问题及对策

针对采用改良氧化沟工艺的城市污水处理厂运行一年多来发生的化学泡沫、腐化浮泥、反硝化浮泥和老化漂泥等问题,分析了其各自产生的原因,并给出了解决方法。认为反硝化浮泥和老化漂泥是该厂易出现的污泥异常问题,可通过控制排泥量、污泥负荷和曝气量等运行参数加以预防控制。     

变速成图技术在库车坳陷亚肯北地区的应用

库车坳陷亚肯北地区地表起伏大,深层特殊岩性地质体分布不均,制约了该区的圈闭落实。常规的圈闭研究均在固定基准面地震数据下开展,而复杂地区基于固定基准面的地震预测深度与实钻深度误差较大,为此,在研究区开展了基于浮动基准面的变速成图技术研究,其结果表明,相对于固定基准面而言,该方法大大地提高了地震预测精度,为复杂地区圈闭研究提供了有力的手段。     

Mathew & Ghosh Architects

The work of Mathew & Ghosh Architects (Nisha Mathew-Ghosh and Soumitro Ghosh) boldly extends an abstract Modernist language and at the same time draws from the vitality of places. While the firm's early works were small in scale, mostly residential in nature and based on a reappraisal of the early Corbusian idiom, recent projects include large-scale urban and landscape interventions with diverse conceptual and metaphorical imperatives. They have moved from a more reticent stance to the urban exuberance of their more recent projects (for example, their own office building), something akin to a ‘savage architecture’ as posited by Kazuo Shinohara in the context of the unsynchronised nature of the modern city. The architects' object of contemplation is the urban ‘box’, whether a private residence, office or part of a church. The box is first fractured and reconstructed as a bricolage of tectonic fragments, memories and events, all tenuously related as if unity in a contemporary culture is for ever denied. Like the Japanese notion of ‘ma’, the moment between fragments - a slit or an emptiness between two hovering planes - is telling. Mathew & Ghosh participate in the continuity of a historical narrative yet mark out the fissures and disjunctions; sometimes negotiations with the continuity emerge from unintended interstices. While these configurations of the contemporary urban ‘box’ are both contextual and abstract, they are also phenomenologically rich. There is a sustained dialect to the architecture of Mathew & Ghosh that includes consummate materiality and fine crafting, light as a medium, and always, as Nisha Mathew-Ghosh states, ‘good spatial possibilities’. Copyright © 2007 John Wiley & Sons, Ltd.     

去除景观湖泊中膜状浮泥的试验

城市景观湖泊中漂在水面上的浮泥不仅影响水体景观,而且还阻碍空气中的氧向水中传输,影响水质。采用化学混凝法对其进行处理,结果表明：浮泥层主要由微小泥粒和少量的其它碎小杂物组成;浮泥Ⅰ采用硫酸铝、浮泥Ⅱ采用聚铝为混凝剂时,可有效降低水中的浊度、色度和高锰酸钾指数;但对浮泥Ⅱ的去除效果不如浮泥Ⅰ,原因是其中的藻类较多,影响了微小泥粒的絮凝。并对具体操作上的问题进行了讨论。     

液塑限联合测定法中液塑限值的计算

1989年3月1日起施行的GBJ123－88土工试验方法标准中,在土的界限含水量测定方法中规定了液、塑限联合测定法、通过总结多年的实践工作经验,介绍了该方法在实际工作中存在的主要问题。以200多组试验数据为依据,对含水量与圆锥下沉深度之间的线性相关关系进行了分析研究,找出了相关系数与规范规定的差值之间的关系,在作图法的基础上提出了计算法,并的符合规范要求及实际工作的控制指标。     

A combined analytical‐experimental investigation of friction in cylinder liner inserts under mixed and boundary regimes of lubrication

It is necessary to develop an analytical solution in order to combine predictions with measured tribological parameters and fundamentally understand the mechanism of lubrication in a typical region of engine cycle, using tribometric studies. This paper deals with the development of such a representative approach. An analytical, rather than a numerical approach is expounded, as it is shown to suffice for the purpose of precise time‐efficient predictions, which conform well to the measurements. The effect of surface topography, material and operating conditions are ascertained for the representative case of top compression ring—cylinder liner contact at the top dead centre reversal in transition from the compression to power stroke. Stainless steel uncoated surface used as press fit cylinder liners for niche original equipment manufacturer applications are compared with those furnished with a Nickel‐Silicon Carbide wear‐resistant coating of choice in high performance motorsport. © 2017 The Authors Lubrication Science Published by John Wiley & Sons Ltd.     

螺旋槽气膜浮环密封结构参数设计分析

介绍了螺旋槽气膜浮环密封的结构特点,利用CFD-FLUENT软件分析比较了普通浮环、无坝区螺旋槽浮环和有坝区螺旋槽浮环3种结构的密封性能,建立了螺旋槽几何结构参数变化对浮升力、泄漏量等影响的规律曲线。计算结果表明:有坝区螺旋槽浮环结构密封性能最好;螺旋槽结构参数对密封特性影响较大,综合考虑较小的泄漏量和较大的浮升力,取较小的螺旋角,槽数26~30,槽长7~9mm,槽深25μm左右,槽宽比0.5较适宜。