Highly sensitive determination of haloperidol in human serum by capillary gas chromatography using a surface ionization detector

A method has been developed for highly sensitive determination of haloperidol in human serum involving a simple extraction procedure followed by gas chromatographic separation. Target components were separated from the extracting solvents with a Van den Berg type solventless sample injector before introduction Into a DB-1 capillary separation column. A surface ionization detector (SID), which has highly selective sensitivity for Substituted amines, was employed for quantitation using bromperidol as an internal standard. Chloroform proved to be the best extracting solvent, yielding a quantitative detection limit of 5 ng/ml (S/N = 2). Comparison of the response to target compounds obtained by the SID, FTD (flame thermionic detector), and FID (flame ionization detector) showed the SID to be superior.     

亚洲显示技术概况及展望

介绍了亚洲第五届信息显示讨论会的情况，此外，还特别介绍了亚洲工业界在ＰＤＰ，ＬＣＤ及ＣＲＴ方面的最新进展。     

Mapping of powdery mildew using multi-spectral HJ-CCD image in Beijing suburban area

Powdery mildew is one of the most serious diseases, which has a significant impact on the production of winter wheat. As an effective alternative to traditional sampling methods, remote sensing can be a useful tool in disease detection. This study examines the potential of a moderate resolution multispectral satellite image in disease monitoring at regional scale. At the suburban area around Beijing, a large size ground survey sample (n = 90) and the corresponding HJ-CCD image were acquired at the grain filling stage of winter wheat. A number of spectral features were found to be sensitive to powdery mildew through an independent t-test. Based on these spectral features, classification models were established using both spectral information divergence (SID) and spectral angle mapper (SAM), respectively. The results showed that the overall accuracies of disease identification and severity estimation were moderate. The estimation of normal and seriously infected samples yielded higher accuracies than slightly infected samples. The single phase HJ-CCD can only be used for locating the infected areas of powdery mildew, whereas is unable to discriminate the severity levels of disease. The presence of several stressors and disturbances other than disease is a possible reason of the unsatisfactory performance of disease monitoring models. Therefore, the integration of multi-phase onboard data and some relevant ancillary data is necessary to improve the accuracy and reliability of disease monitoring at regional scale.     

2005年SID年会推介

为了满足新时代显示技术和产品的要求，筹办者将增加新的项目和较多的技术讨论会议，以给与会者提供更多的有用价值。     

Grazing incidence surface-induced dissociation: molecules sliding along a surface

Principles of grazing incidence SID and a brief overview of previous works are summarized and the experimental setup for grazing incidence SID experiments is described. New results with fullerene C₆₀ are presented; these demonstrate that grazing incidence SID is not a special case of the conventional SID.     

Quantum mechanical approaches to structurally informed design

This review focuses on the application of molecular modeling and structure‐informed design (SID) to drug discovery. Routine utilization of quantum mechanical techniques allows generation of SID hypotheses, based on first principles. The authors introduce the concept of combining information from electrostatic potential surfaces and nonbonding orbitals to determine the nature and directionality of intermolecular interactions, particularly those that are infrequently exemplified in the protein data bank. © 2013 Wiley Periodicals, Inc.     

OCS在线计费系统解决方案分析

随着电信业务的发展和电信重组的完成,电信行业竞争更加激烈,促使电信运营商需要提高其核心的计费支撑能力,电信计费系统向着实时化、灵活化、融合化的方向发展。本文主要阐述了建设OCS系统的必要性、OCS系统的技术架构以及OCS系统需要实现的业务功能等。     

第三代移动通信中AMR语音编码的差错隐藏技术

介绍了第三代移动通信中AMR（自适应多码率）语音编码的帧格式，进一步描述了错误检测的基本方法，详细说明了语音编码对丢帧采用的差错隐藏技术。     

OLED显示器风靡SID研讨会

SID2006年会无论是在论文发表的数量上,还是在参展商的数量上都创下了历史记录。在研讨会上和展厅上展示的OLED显示器及其相关技术受到了最多的关注。本文将简单介绍SID2006年会期间,OLED这个新兴的技术取得的最引人关注的进展。     

一种加入入侵检测的可信AODV方案

可信的AODV路由协议（Trusted Ad hoc On Demand Distance Vector Routing Algorithm,TAODV）是一种在AODV中加入信任机制的协议,对路由传输中网络层数据的安全性传输起到一定的改进作用。单个入侵检测（Single Intrusion Detection,SID）即一个节点持续地监听邻居节点间的信息交互,计算出邻居节点的信任值,增加了网络对于恶意行为的敏感度,从而能以最快的速度找到最佳路由。在TAODV中加入SID单元可以大大提高网络的传输效率,降低丢包率,更快地找到安全可靠并且距离最短的路由。