NK-EH500调质钢爆炸硬化的冲击动力学研究

通过试验并运用爆炸冲击动力学理论NK－EH500调质钢爆炸硬化进行了深入的研究，结果表明，金属材料存在硬化极限，调整炸药组成改变爆炸硬化可以满足不同金属材料的硬化要求，隔离式爆炸硬化有利于保护硬化工件外观的完整性，本研究对拓展爆炸硬化在实践中的应用领域具有重要的理论指导意义。     

Ionic transport in amorphous anodic titania stabilised by incorporation of silicon species

Incorporation of silicon species from an alloy substrate into anodic titania is shown to stabilise the structure of the film, facilitating investigation of the ionic transport processes in amorphous titania grown at high efficiency. Thus, an amorphous anodic film developed on a sputtering-deposited Ti-6 at.%Si alloy formed to 100 V in phosphoric acid electrolyte in contrast to a partially crystalline film developed on relatively pure titanium at <20 V. Silicon species, which are immobile and act as marker species in the growing film, are present in the inner 58% of the film thickness. Evidently, the film material forms simultaneously at the film/electrolyte and alloy/film interfaces by co-operative transport of cations and anions, as is usual in amorphous anodic oxides. The phosphate anions incorporated from the electrolyte migrate inward at 0.34 times the rate of O²⁻ ions and hence are present in the outer 62% of the film thickness.     

类胡萝卜素的生物利用率

本文论述了作为维生素A前体的类胡萝卜素在体内的吸收代谢过程、类胡萝卜素生物利用率的定义、影响生物利用率的因素以及测定新方法。     

基于单片机的空气干燥器控制仪

本文介绍了空气干燥器控制仪的基本组成和工作原理，并简要说明了软件设计方法。     

Windows下的数据采集和A/D转换

主要论述了使用Visual C 6.0在Windows下实现数据的实时采集和信号的图形显示，其中包括数据采集、A／D转换以及信号的实时显示等。使用面向对象的编程方法，构造了一个通用的A／D转换类，具有很好的可重用性。     

显示和键盘智能控制芯片zlg7289A的原理及应用

详细介绍了数码管及键盘智能芯片zlg7289A的基本原理，主要特点与使用原则，给出了以zlg7289A芯片为核心设计的人机接口电路及程序框图。     

高铬锰白口铸铁的软化处理

研究了 4种退火工艺对高铬锰白口铸铁组织和硬度的影响规律。结果表明 ,采用 85 0℃保温 4h ,随后于 72 0℃保温 6h退火工艺 ,硬度最低为 36～ 38HRC ,机加工性能最好。     

The Loss of Hydrophobic Polypeptides during Fermentation and Conditioning of High Gravity and Low Gravity Brewed Beer

The object of this study was to investigate the loss of hydrophobic polypeptides, which are important for foam quality and stability in finished beer. Loss of hydrophobic polypeptide due to fermenter foaming occurs during transfer of fermented wort since a gradient of hydrophobic polypeptides towards the surface is created during fermentation. Due to higher polyphenol levels in high gravity (20°Plato) wort, more hydrophobic polypeptides are lost due to cold break (cold trub) precipitation compared to low gravity (12°Plato) wort. Another important factor affecting the loss of hydrophobic polypeptides could be proteinase A activity during fermentation, especially in high gravity fermentation where the yeast is exposed the higher stress. During high gravity fermentation, where osmotic pressures are higher, ethanol levels become greater, and nitrogen‐carbohydrate ratios are lower, more proteinase A is released by the yeast. This release of proteinase A into fermenting wort could have implications for the foam stability of the finished product.     

非线性编辑系统中常见的外部数字接口

非线性编辑系统的接口包括计算机内部接口和外部接口。在外部接口中，数字接口由于其自身的特点和优势被用得越来越多。非线性系统的外部数字接口一般包括数字视音频接口和遥控接口，下面对常用的SDI，IEEE1394，SDTI，AES／EBU，RS232C，RS422A等接口进行择要介绍，并对一些接口的特点作了分析和比较。     

Homogeneity characterisation of sintered (U,Gd)O2 pellets by X-ray diffraction

(U,Gd)O₂ sintered pellets are fabricated by different methods. The homogeneity characterisation of the Gd content seems to be necessary for a production control to qualify the process and the final product obtained. In this paper, we propose an analysis of the X-ray diffraction powder patterns through the Rietveld method, in which the differences between the experimental and the calculated data proposed from a crystalline structure model are evaluated. This result allows us to determine the cell parameters, that can be correlated with the Gd concentration, and the existence of other phases with different Gd contents.