应用AD7741实现多路电化学生物传感器信号的隔离A/D采样设计

应用AD7741设计了一款电化学生物传感器的前置电路,给出了多路前置用AD7741进行信号隔离的A/D采样方案,提供了对多路信号进行分时隔离A/D采样的程序控制流程和对A/D采样数据的校正处理方法。     

轧钢机连铸机用陶瓷无油轴承的研究

本文叙述了纤维增强陶瓷轴承的技术原理,单元组分的选择与试制工艺。制品的技术性能,该产品在轧钢机、连铸机滚道上通过试用结果表明:这种陶瓷轴承不仅抗压、耐热、耐磨性能好,而且抗冲击、自润滑、易加工。     

LBN-40AD全电子定量包装秤的改进和维护

就LBN-40AD全电子定量包装秤的改进和维护,阐述了在改进过程中出现的问题及原因分析,提出了改进的措施和改进后的效果,且对使用维护要点进行了总结。     

IS—95中的扩频码分析

简要分析了 IS- 95中所用的扩频码的性质及在前向和反向信道中所起的作用 ,并对相关的信令作出了分析     

陶瓷书法与客家文化融合的艺术探索

客家文化的内涵,书法艺术的丰富表现力,与陶瓷艺术的结合,形成了独特的客家陶瓷书法创意产品。在具体的创作过程中,既要把握原则、明确思路,又要大胆创新。     

Ceramic coating electric-deposited by high-energy pulse

A novel method to prepare ceramic coatings has been developed by making use of plasma energy produced from the pulsed discharge between electric conductor and aqueous electrolyte. A ZrO₂-8%Y₂O₃, coating was obtained by this method, which had excellent adhesion with substrate, smooth surface and good resistance to high temperature oxidation.     

陶瓷抛光砖粉制备蒸压硅酸盐制品研究

研究利用陶瓷抛光砖粉制备蒸压硅酸盐制品，并与粉煤灰对比。试验采用了IR、XRD、SEM以及EDS等测试方法研究其水热特性、水化产物的组成和形貌，并测试其强度。研究结果表明：陶瓷抛光砖粉在蒸压条件下有较高的火山灰活性；在相同配比条件下，抛光砖粉中参与反应的活性SiO2远比粉煤灰多，生成较低Ca/Si的水化产物，其蒸压制品强度高于粉煤灰；当石灰∶抛光砖粉＝1∶3时其蒸压制品强度较高。利用陶瓷抛光砖粉制备蒸压硅酸盐制品有广阔应用前景。     

Application of EEG multipole model in the diagnosis of Alzheimer''''s disease

In order to find the electroencephalogram （EEG） characteristic parameters typical of Alzheimer＇s disease （AD） and explore an effective diagnostic method, a new mobile current multipole model was proposed to simulate the AD patient＇s cortical dipole source activities. The indicators of goodness of fit （GOF） and DtononD （DD） were calculated from EEG samples to evaluate the performance of this model. Relevant results showed that this multipole model with higher GOFvalues and larger DD change well fitted the pathological electrical activities of cortical neurons aroused by AD＇s extended sulcus and gyrus in the cerebral cortex. Meanwhile, the products of DD mean ＆ standard variance were found in a clear linear correlation with the diagnostic data of mini-mental state examination （MMSE） used in AD clinics. Furthermore, by tracing this multipole model＇s indicators in typical patients and contrasting with the functional magnetic resonance image （fMRI） as AD progressed, we suggested that the DD index may be suitable for monitoring the AD developments as a new diagnostic parameter.     

智能车辆轴载质量动态监测系统的研究与设计

介绍了一种基于AD7714和AT89C52单片机的两级分布式智能车辆轴栽质量动态监测系统。该系统能够动态实时、自动监测、显示不同车型及相应的轴栽质量、超载语音信息提示、存储每天车辆轴栽质量以及超载信息可随时查询、打印等功能。实际运行结果表明，该系统工作可靠、实用，对于从根本上避免超载现象及由此引发的交通事故，有很大的作用。