可控震源地震数据初至时间拾取方法

如今中国境内可控震源勘探作业大多采用扫描信号与地震仪器接收信号进行互相关方式获取共炮点道集数据,这一过程通常在野外地震仪器系统上通过硬件完成。对于互相关单炮记录,相关噪声的存在降低了初至波的信噪比,需对单炮记录进行最小相位化处理后拾取初至时间;采用扫描信号或地面力信号对振动记录做反褶积处理,能改善初至波信噪比,使初至起跳更加干脆,从而可提高初至时间拾取精度和静校正精度。在低信噪比地区,宜采用人机交互方式拾取初至,通过改变显示方式等改善初至起跳效果,以提高初至拾取精度和静校正精度。     

基于HCI层的蓝牙开发

本文对蓝牙的体系结构、主机控制器接口(HCI)层及HCI指令和HCI事件进行了简要介绍,探讨了基于HCI层的蓝牙开发模式,阐述了蓝牙点对点的ALC数据传输的主要过程,提出了蓝牙HCI指令函数封装的一般方法,为蓝牙的嵌入式应用开发提供一般思路。     

采用全烟气暴露系统测试卷烟主流烟气细胞毒性

基于VITROCELL系统结合中性红摄取试验建立了全烟气暴露细胞毒性测试方法,采用建立的方法测试了加拿大深度(HCI)抽吸条件下国内外29个牌号市售卷烟主流烟气的细胞毒性。结果表明:①建立的全烟气暴露细胞毒性测试方法可以获得良好的烟气细胞毒性剂量-效应关系;②测试结果的变异系数(CV)在25%以内,方法稳定性较好。建立的全烟气暴露实验方法适合于卷烟主流烟气细胞毒性测试。     

OpenHCI for USB浅析

在嵌入式操作系统上实现USB Host可以使数码相机、新型手机和PDA脱离开PC直接与打印机和扫描仪等设备实现互连。如果能将USB Host内置于数码相机中,就能够将数码相机中的照片直接输出给USB打印机。本文对USB Host系统软件的协议框架OpenHCI进行了简单剖析。     

一种基于Markov模型的自适应软件可用性监测模型

软件可用性工程是当前软件开发的重要研究领域,研究者试图通过对软件可用性特征的分析提高使用者使用效率,改善软件质量。本文针对软件使用过程中的用户操作特征,采用Markov模型对用户软件操作过程进行聚类和建模。并在此基础上根据用户模型的概率描述指标,提出了相应的在线模型更新算法和帮助系统设计方法。在实际软件设计过程中设计实现了以此为理论基础的试验系统,取得了较好的应用效果。     

A method for the analysis of the interaction between users and objects in 3D navigational space

Along with the improvement of eye-tracking technology, more and more distinct field of researches have introduced movements of the eye in relation to the head to understand user behavior. Most of current researches focus on the perception process of single 2-dimensional images by fixed eye-tracking devices or the head-mount devices. A method of applying eye-tracking on the analysis of the interaction between users and objects in 3D navigational space is proposed in this article. It aims to understand the visual stimulation of 3D objects and the user’s spatial navigational reactions while receiving the stimulation, and proposes the concept of 3D object attention heat map. It also proposes to construct a computational visual attention model for different geometric featured 3D objects by applying the method of feature curves. The VR results of this study also provide future assistance in the incoming immersive world. This study sets to promote eye-tracking from the mainstream of 2D field to 3D spaces and points to a deeper understanding between human and artificial product or natural objects. It would also serve an important role in the field of human-computer interaction, product usability, aids devices for cognition degenerative individuals, and even the field of visual recognition of daily human behavior.     

人机交互技术的进展与发展趋向

人机交互是８０年代以来迅速形成与发展的多学科交叉领域．该文阐述了人机交互系统的发展简史、组成要素、主要研究方向及国内外进展．其中包括作者们所在单位研究成果的简述．     

盐酸溶液中dmit（Bun）2对Q235钢的缓蚀性能研究

合成了有机硫化合物4,5-二（正丁硫基）-1,3-二硫杂环戊二烯-2-硫酮（dmit（Bun）2）,用元素分析和红外光谱进行了表征,采用电化学极化曲线法研究了dmit（Bun）2在1.0 mol＆#183; L-1HCl溶液中对Q235钢的缓蚀作用,并考察了dmit（Bun）2浓度、HCl浓度、腐蚀体系温度、缓蚀液放置时间对缓蚀性能的影响.研究结果表明：在30℃时,dmit（Bun）2浓度为80 mg＆#183;L-1的1.0 mol＆#183;L-1 HCl溶液中,缓蚀剂对Q235钢的缓蚀率达到了99.01％,dmit（Bun）2为混合型缓蚀剂.吸附拟合表明：dmit（Bun）2在Q235钢表面的吸附符合Langmuir吸附等温式,属于自发进行的化学吸附.dmit（Bun）2的缓蚀率随dmit（Bun）2浓度增大而升高,随腐蚀体系温度升高而降低,随HCl浓度增大而逐渐降低,随静置时间的延长、dmit（Bun）2的缓蚀性变化不大.     

A Primer to Human Threading

Human Threading™ is new approach in developing innovative computing technologies. It uses novel physiologic combinations to measure the human brain and body in an effort to create greater efficiency among human and machine. A divergent group of measurement techniques are employed in this process including EEG, NIRS, fMRI, GSR, Saccade testing and more. An overarching goal in this area of study will be the development of simultaneous, multi-modal operating platforms providing efficiency and interchangeability. As an example this paper provides a comparison of efficiency between two email systems. The first system is a standard Microsoft Outlook-based email application using Microsoft XP. The next is a voice-based email system created at the Human Threading™ research laboratory. EEG and time trials were performed on ten participants with a total of 30 trails. Voice-based email was shown to be 220% faster and use statistically less cognitive load on participants prefrontal cortex. This paper shows initial results in support of Human Threading™ and the potential power behind efficient, modal specific operating platforms.     

Feminism asks the “Who” questions in HCI

In this brief personal essay, I describe some of the ways that feminism has influenced my life as a researcher and practitioner in HCI and CSCW - in the creation of work to be read by others, in the critical reading of works that were created by others, and in the planning and framing of practical work in enterprise workplaces. I discuss three variations of “Who” questions that feminism helps us to ask in HCI: The “who” of the identity of the user; the “who” of the identity of organizational actors; and the “who” of the practitioner or researcher.