频率/待测量变换的GAL、ERROM设计方法

本文提出了以通用阵列逻辑器件 GAL 和只读存贮器 EPROM 为核心器件的频率/待测量变换的设计方法。配以数字式传感器及用最小二乘法编制的曲线自动分段拟合程序生成的 EPROM 中的数据,可用于力、温度、光强等非电量的测量显示和控制。这种装置与采用微处理器的电路相比,有相同的测量精度,电路简单,而且保密性好.     

Optimisation of immobilisation conditions for chick pea β-galactosidase (CpGAL) to alkylamine glass using response surface methodology and its applications in lactose hydrolysis

Response surface methodology was advantageously used to optimally immobilise a β-galactosidase from chick pea onto alkylamine glass using Box–Behnken experimental design, resulting in an overall 91% immobilisation efficiency. Analysis of variance was performed to determine the adequacy and significance of the quadratic model. Immobilised enzyme showed a shift in the optimum pH; however, optimum temperature remained unaffected. Thermal denaturation kinetics demonstrated significant improvement in thermal stability of the enzyme after immobilisation. Galactose competitively inhibits the enzyme in both soluble and immobilised conditions. Lactose in milk whey was hydrolysed at comparatively higher rate than that of milk. Immobilised enzyme showed excellent reusability with retention of more than 82% enzymatic activity after 15 uses. The immobilised enzyme was found to be fairly stable in both dry and wet conditions for three months with retention of more than 80% residual activity.     

基于GAL的89C52串口扩展电路设计

本文介绍了一种通过GAL可编程芯片替代传统的逻辑芯片。扩展89C52单片机串行通讯接口的方法。给出了通过在Protel99SE嵌套的PLD99的开发环境下，对可编程逻辑器件设计的实现过程，并且将这种方法应用到实际工作。通过对GALl6V8芯片进行编程，成功的解决了一台计算机对三台现场仪表采样数据不定期发送串口数据的收集问题；采用定时芯片Intel82C53，为三路串口扩展芯片Intel82C51A提供时基。可以实现输入的三路串口数据采用各自的波特率。通过对CPU芯片的编程。实现了通讯功能。通过实际测试，可以达到预期效果，数据传输稳定、可靠。     

Genome-Wide Association Analysis and Genomic Prediction of Thyroglobulin Plasma Levels

Thyroglobulin (Tg) is an iodoglycoprotein produced by thyroid follicular cells which acts as an essential substrate for thyroid hormone synthesis. To date, only one genome-wide association study (GWAS) of plasma Tg levels has been performed by our research group. Utilizing recent advancements in computation and modeling, we apply a Bayesian approach to the probabilistic inference of the genetic architecture of Tg. We fitted a Bayesian sparse linear mixed model (BSLMM) and a frequentist linear mixed model (LMM) of 7,289,083 variants in 1096 healthy European-ancestry participants of the Croatian Biobank. Meta-analysis with two independent cohorts (total n = 2109) identified 83 genome-wide significant single nucleotide polymorphisms (SNPs) within the ST6GAL1 gene (p<5×10−8). BSLMM revealed additional association signals on chromosomes 1, 8, 10, and 14. For ST6GAL1 and the newly uncovered genes, we provide physiological and pathophysiological explanations of how their expression could be associated with variations in plasma Tg levels. We found that the SNP-heritability of Tg is 17% and that 52% of this variation is due to a small number of 16 variants that have a major effect on Tg levels. Our results suggest that the genetic architecture of plasma Tg is not polygenic, but influenced by a few genes with major effects.     

参数模型几种自适应算法的比较研究

随着信号处理技术的发展,参数模型的自适应算法在滤波、辨识、控制等方面得到越来越广泛的应用。本文介绍四种比较有效的算法——递归最小二乘法、格形随机梯度法、格形最小二乘法、快速横向最小二乘法,并对它们在实用中必须注意的一些主要特性——计算工作量、收敛速度、鲁棒性等进行了比较分析,提出选择算法的参考意见。     

isPLSI和GAL芯片在精密装配机器人控制系统设计中的应用

介绍近年来在电路设计中得到广泛应用的两种ＰＬＤ（Ｐｒｏｇｒａｍｍａｂｌｅ Ｌｏｇｉｃａｌ Ｄｅｖｉｃｅ可编程逻辑器件）－－ｉｓｐＬＳＩ１０１６和ＧＡＬ２０Ｖ８，将其应用于精密装配机器人控制系统的设计中，开发出新型的基于ｉｓｐＬＳＩ和ＧＡＬ的装配机器人关节控制板，并分析了该种设计相对于采用传统ＩＣ器件设计的优越性。     

溅射法制备硫化锌薄膜的XPS剖析

用Ｘ射线光电子能谱（ＸＰＳ）技术，测量了射频磁控溅射法（ＲＦＭＳ）制备的硫化锌薄膜（ＺｎＳ：Ｅｒ＾３＋）的表面及内部构态，认为氧吸附形成的表面构态是产生薄膜界面态和界面陷阱能级的主要原因，对研究器件的激发过程有参考意义     

基于LabVIEW和Atmega16的GAL16V8编程器的制作

介绍一种由PC机USB串口发送数据到Atmega16单片机并由Atmega16控制编程的GAL16V8编程器的制作。详述了GAL16V8烧录器的硬件电路的设计,单片机Atmega16如何根据指令进行烧录,以及用软件LabVIEW实现编程数据顺序的调整。该编程器实现了对LATTICE公司的GAL16V8B、GAL16V8D与ATMEL公司的ATF16V8B的不同烧录指令,适用于实验教学。     

ARM与MCS-51的时序转换方法研究

介绍了两种将AT91M40的读写时序转换为MCS－51的读写时序的方法，基于硬件实现的方法与通过软件实现的方法，并分析了根据两者各自优缺点及在不同应用中应采用的方法。     

使用GAL器件设计CIS图像传感器驱动电路

本文介绍了使用GAL器件的线阵CIS器件驱动电路的设计和实现。通过在设计中的仿真以及实际电路的调试,均得到了符合要求的驱动时序,驱动电路具有工作频率高,稳定性高的优点,GAL器件的使用简化了电路结构,具有价格低廉,开发周期短的优点。