The Attentional Dynamics of Masked Detection.

A dichoptic masking procedure was used to test whether the mask-dependent cuing effects found in luminance detection by P. L. Smith (2000a) were due to integration masking or interruption masking. Attentional cuing enhanced detection sensitivity (d') when stimuli were backwardly masked with either dichoptic or monoptic masks, whereas no cuing effect was found with unmasked stimuli, implying the mask dependencies were due to interruption of stimulus processing in visual cortex by the mask. The effect is predicted by a gated diffusion process model in which masks interrupt stimulus processing and attention controls the flow of information to a sequential-sampling decision mechanism. The model correctly predicts different patterns of performance for detection and discrimination and cuing effects in simple reaction time. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

双辊薄带钢连铸在线自动检测系统

介绍了双辊薄带钢连铸工艺,设计了双辊连铸机的计算机在线自动检测系统,通过采取正确的抗干扰措施提高了检测的精度,系统在双辊薄带钢连铸试验中应用效果良好.     

激光焊接过程监测及焊缝质量检测技术研究现状

阐述了在激光焊接过程中通过监控等离子体等光电信号、熔池和小孔状态来分析评估激光焊接质量、通过无损检测手段分析焊后焊缝内部应力集中和气孔等缺陷、通过计算机视觉技术在线检测焊缝表面缺陷三种检测焊接质量的检测原理及发展。介绍了几种已应用于激光焊接生产线的较为先进的计算机视觉检测焊缝质量的产品。分析了视觉检测技术应用于焊缝在线检测中存在问题及发展趋势。     

A Temporal Model of Level-Invariant, Tone-in-Noise Detection.

Level-invariant detection refers to findings that thresholds in tone-in-noise detection are unaffected by roving-level procedures that degrade energy cues. Such data are inconsistent with ideas that detection is based on the energy passed by an auditory filter. A hypothesis that detection is based on a level-invariant temporal cue is advanced. Simulations of a leaky-integrator model, consisting of a bandpass filter, half-wave rectification, and a lowpass filter, account for thresholds in band-widening experiments. The decision variable is calculated from the discrete Fourier transform of the leaky-integrator output. A counterintuitive finding is the apparent disassociation of the phenomenon of critical bands estimated from band-widening experiments and the theory of auditory filters. Physiological plausibility is demonstrated by showing that a leaky integrator describes the discharge cadence of primary afferents for tone-in-noise stimuli as well as for complex periodic sounds. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

有色工业污水的快速化验检测方法的分析

在有色工业生产中,产生的大量污水经过反应将产生较大毒性,还要通过快速化验检测有效控制污染程度。基于此,本文在分析有色工业污水快速化验检测要求的基础上,提出了光化学催化、微生物传感等多种检测方法,希望能够为实际检验工作的开展提供参考。     

光纤检测技术在岩土工程信息化施工中的应用

简要介绍了光纤检测技术的基本原理，在强调岩土工程信息化施工的重要性的基础上，讨论了光纤检测技术应用于岩土工程监测中的优越性，并就光纤检测技术在岩土工程信息化施工中的应用进行了一些探讨。     

轧钢孔型样板采用计算机绘图检测

介绍了一种借助数码相机拍摄和计算机软件对轧钢孔型样板进行精确检验的新方法。它改变了传统的人工肉眼判定样板定量的落后方法，有效地提高了轧钢孔型的制造精度，从而提高了轧制产品的质量。这一创新方法填补了轧钢行业的技术空白。     

智能化矿山基础建设-荧光分析仪在线检测

介绍了BOXA载流X荧光分析仪具有在线检测功能,结果准确度较高,相对误差小,结果反馈及时等特点,已成功应用于城门山铜矿选矿生产实践。分析仪可以将工艺指标及时反馈,为城门山铜矿智能化矿山浮选自动调控建设奠定了基础。     

A dual-process account of auditory change detection.

Listeners can be “deaf” to a substantial change in a scene comprising multiple auditory objects unless their attention has been directed to the changed object. It is unclear whether auditory change detection relies on identification of the objects in pre- and post-change scenes. We compared the rates at which listeners correctly identify changed objects with those predicted by change-detection models based on signal detection theory (SDT) and high-threshold theory (HTT). Detected changes were not identified as accurately as predicted by models based on either theory, suggesting that some changes are detected by a process that does not support change identification. Undetected changes were identified as accurately as predicted by the HTT model but much less accurately than predicted by the SDT models. The process underlying change detection was investigated further by determining receiver-operating characteristics (ROCs). ROCs did not conform to those predicted by either a SDT or a HTT model but were well modeled by a dual-process that incorporated HTT and SDT components. The dual-process model also accurately predicted the rates at which detected and undetected changes were correctly identified. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Listening, not watching: Situational familiarity and the ability to detect deception.

In 4 experiments, the authors investigated the influence of situational familiarity with the judgmental context on the process of lie detection. They predicted that high familiarity with a situation leads to a more pronounced use of content cues when making judgments of veracity. Therefore, they expected higher classification accuracy of truths and lies under high familiarity. Under low situational familiarity, they expected that people achieve lower accuracy rates because they use more nonverbal cues for their veracity judgments. In all 4 experiments, participants with high situational familiarity achieved higher accuracy rates in classifying both truthful and deceptive messages than participants with low situational familiarity. Moreover, mediational analyses demonstrated that higher classification accuracy in the high-familiarity condition was associated with more use of verbal content cues and less use of nonverbal cues. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

钢包台车位置检测及传动系统的改造

针对宝钢炼钢厂钢包台车移动电缆故障频繁的问题,使用了激光测距方式取代原有的凸轮开关测距方式,并使用了变频器来取代原有的绕线式电动机切电阻的驱动方式,从而大幅度降低了炼钢厂主作业线停机时间和维修费用。     

副枪测量控制系统在260t转炉的应用

介绍了转炉副枪测量控制系统的组成、检测方式、主要控制功能及其在260t转炉的应用与效果。     

感应无线检测技术与焦炉四大车联锁

感应无线检测技术集通讯与位置检测于一体,能有效地实现大型型移动设备的定位和与地面的通讯,能适应恶劣的环境,阐述其基本原理以及在焦炉四大车联锁中的应用。     

利用OneproD设备构建在线振动监测系统

钢铁企业能源系统大型旋转机械较多,包括空压机、鼓风机、加压机、空分等。这些设备对生产较重要,但是其分布较为分散,导致进行实时有效的监控诊断分析较为困难。为了更好的监测诊断分析这些设备的运行状况,特此构建在线振动监测诊断分析系统用于大型旋转机械在线状态诊断分析。     

冷轧带钢板形的自动检测和控制

主要介绍了板形自动检测原理和控制手段,提出了鞍钢冷轧厂联合机组板形检测和控制要求,进一步明确了优化板形控制工艺。     

自动探伤设备检测缺陷能力的评价试验

采用若干符合用户要求的带有两种人工缺陷的样管,在钢管公司的漏磁探伤和超声波探伤机组进行了自动探伤设备检测缺陷能力的评价试验。结果表明,各探伤机组全部能够稳定地检测出钢管存在的横、纵向缺陷。漏磁探伤对斜向缺陷的检出效果优于超声波探伤。公司主要自动探伤设备能力能够满足大型石油公司的要求。     

Visual Awareness and the Detection of Fearful Faces.

A commonly held view is that emotional stimuli are processed independently of awareness. Here, the authors parametrically varied the duration of a fearful face target stimulus that was backward masked by a neutral face. The authors evaluated awareness by characterizing behavioral performance using receiver operating characteristic curves from signal detection theory. Their main finding was that no universal objective awareness threshold exists for fear perception. Although several subjects displayed a behavioral pattern consistent with previous reports (i.e., targets masked at 33 ms), a considerable percentage of their subjects (64%) were capable of reliably detecting 33-ms targets. Their findings suggest that considerable information is available even in briefly presented stimuli (possibly as short as 17 ms) to support masked fear detection. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

回转窑测温系统安装与调试

木文介绍了回转窑温度测量系统的安装与调试。     

鞍钢2号板坯连铸机仪表检测与控制

论述了鞍钢第三炼钢厂２号板坯连铸机自动化仪表控制系统的构成,并对板坯连铸机仪表检测和控制功能进行了简要论述。     

飞剪系统中钢坯,剪刃位置的检测及定长切头控制

介绍了鞍钢第一初轧厂５５０飞剪线在线剪过程中，板坯，剪刃的动态位置检测，位差处理与定长切头控制等问题。