A dual flow-path inlet system is being tested to evaluate methodologies for a Turbine Based Combined Cycle (TBCC) propulsion system to perform a controlled inlet mode transition. Prior to experimental testing, simulation models are used to test, debug, and validate potential control algorithms. One simulation package being used for testing is the High Mach Transient Engine Cycle Code simulation, known as HiTECC. This paper discusses the closed loop control system, which utilizes a shock location sensor to improve inlet performance and operability. Even though the shock location feedback has a coarse resolution, the feedback allows for a reduction in steady state error and, in some cases, better performance than with previous proposed pressure ratio based methods. This paper demonstrates the design and benefit with the implementation of a proportional-integral controller, an H-Infinity based controller, and a disturbance observer based controller.

关键词：进气道流；控制器；反馈控制；计算机仿真；涡轮发动机

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The development of cobalt alloys for the development of HIP implants has been evolving overtime. Accordingly, in this work an overview of the main microstructural factors that impact the mechanical properties, as well as the effect of interstitials such as carbon and nitrogen. In addition the role alloy pre-straining and heat treating on the amount of ε-martensite and on the exhibited mechanical properties is described. In general, it is shown that as the amount of ε-martensite exceeds 60 vol. percent, the alloy ductility is drastically reduced as the HCP phase becomes dominant in the matrix.

关键词：生物医学钴合金；植入物；ε-马氏体；相变；力学性能

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Dimming mirrors were initially introduced in fighter aircraft to reduce brightness. Gentex was credited with the first electromechanical dimming rearview mirror in 1982. Auto dimming mirrors reduce annoying glare at night that can impair vision.

关键词：防眩目后视镜；战斗机；降低亮度；汽车自动调光镜

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β-type titanium alloys comprising low cost elements such as Fe, Mn, Cr, Sn, Al, O and N and having low Young's modulus are currently being developed. Examples of such alloys include Ti-10Cr-Al, Ti-Mn, Ti-Mn-Fe, Ti-Mn-Al, Ti-Cr-Al, Ti-Sn-Cr, Ti-Cr-Sn-Zr, Ti-(Cr, Mn)-Sn, and Ti-12Cr. Ti-5Fe-3Nb-3Zr belongs to that class of titanium alloys in which rare metals such as Nb, Ta, and Zr have been reduced using Fe. Ti-5Fe-3Nb-3Zr has a Young's modulus of around 76 GPa and has greater strength than that of Ti-6Al-4V ELI for biomedical applications. The characteristics of Ti-5Fe-3Nb-3Zr and other low-cost beta-type titanium alloys with low Young's moduli are discussed from the viewpoint of biomedical applications.

关键词：β型钛合金；低杨氏模量；;廉价的元素；普通金属；间隙元素

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介绍了鼓式碎浆机在不同流程中的特征、鼓式碎浆机与传统水力碎浆系统的不同及鼓式碎浆机的发展现状.

关键词：鼓式碎浆机；ONP；能耗；疏解

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在自制的数字化搅拌设备实验平台的基础上,以水和不同浓度的CMC溶液为介质,探索超声波场对搅拌功率特性和搅拌混合特性影响的试验研究.结果表明:在本试验所用介质中,超声波对搅拌功率影响不大；在低黏度介质中,超声波对混合特性影响不大,在中黏度介质中,超声波可以明显改善混合特性.

关键词：超声波；搅拌特性；超声介质；黏度；混合时间

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某碱回收锅炉Ⅲ级(高温)过热器发生严重腐蚀,通过对燃料、材质、腐蚀产物成分分析及金相分析,确定造成腐蚀的主要原因是设计缺陷和燃料问题.

关键词：碱回收锅炉；高温过热器；燃料；腐蚀

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介绍了云南云景林纸股份有限公司动力厂锅炉除尘脱硫系统基本情况和运行概况,对存在的问题进行分析并提出相应的改造建议.

关键词：锅炉；除尘脱硫系统；运行；存在问题；改造建议

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介绍了国产双辊挤浆机的结构、工作原理、技术参数、应用实例及运行情况,讨论了双辊挤浆机的应用范围及选用注意事项.

关键词：双辊挤浆机；洗涤；浓缩

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Twister除渣器是水力旋流除渣技术的一个新概念,即在1支除渣器壳体内,包含有合并为1个单元的3支正向除渣器,依靠注入中段稀释水的专利技术,形成上、下锥体的两段除渣.与传统除渣器进浆浓度1％时相比,在获得相同或更好的净化效率的前提下,Twister除渣器的进浆浓度可达2％,以此达到节能50％.同时,与传统除渣器相比,排渣率更低.

关键词：除渣器；中段稀释；节能

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