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991.
Every day, hundreds of thousands of people pass through airport security checkpoints, border crossing stations, or other security screening measures. Security professionals must sift through countless interactions and ferret out high-risk individuals who represent a danger to other citizens. During each interaction, the security professional must decide whether the individual is being forthright or deceptive. This task is difficult because of the limits of human vigilance and perception and the small percentage of individuals who actually harbor hostile intent. Our research initiative is based on a behavioral approach to deception detection. We attempted to build an automated system that can infer deception or truthfulness from a set of features extracted from head and hands movements in a video. A validated and reliable behaviorally based deception analysis system could potentially have great impacts in augmenting humans' abilities to assess credibility. An automated, unobtrusive system identifies behavioral patterns that indicate deception from nonverbal behavioral cues and classifies deception and truth more accurately than many humans.  相似文献   
992.
The relationship of financial incentives to performance quality and quantity is cumulated over 39 studies containing 47 relationships. Financial incentives were not related to performance quality but had a corrected correlation of .34 with performance quantity. Setting (laboratory, field, experimental simulation) and theoretical framework moderated the relationship, but task type did not. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
993.
994.
The Harris semiconductor manufacturing systems organization has released a new environment for performing complex analyses of semiconductor manufacturing processes and IC products in its facilities worldwide. This innovative analysis toolset has increased the productivity of engineers by providing a method for complex manufacturing data reduction without the need for exhaustive training. The interactive, forms-based interface utility has also provided significant reductions in the time required to isolate parameters and identify relationships that significantly influence manufacturing yields. With little knowledge of data structures, query languages, or the underlying statistical analysis software, users of the system can access data in a variety of Harris worldwide locations and generate complex ad-hoc queries that result in statistics, histograms, box plots, and scatter plots. The more sophisticated user can enjoy the benefits of an open system. The foundation of the system is the internally developed, Unix-based manufacturing and engineering data base (MEDB). MEDB is a fully automated system for collecting and loading in-line manufacturing parameters, sample probe, wafer probe, and package test data from a variety of equipment platforms. The system is comprised of Harris proprietary database management software wrapped around the commercially available INGRES relational database product  相似文献   
995.
Procedure 5012 of Mil-Std-883, which describes requirements for the logic model, the assumed fault model and universe, fault classing, fault simulation and reporting of test results for digital microcircuits is described. The procedure provides a consistent means of measuring fault coverage regardless of the specific logic and fault simulator used. Procedure 5012 addresses complex, embedded structures such as random-access memories (RAMs), read-only memories (ROMs), and programmable logic arrays (PLAs) weighting gate-level and non-gate-level structures by transistor counts to arrive at overall fault coverage  相似文献   
996.

Background  

With the increased manufacture and use of carbon nanoparticles (CNP) there has been increasing concern about the potential toxicity of fugitive CNP in the workplace and ambient environment. To address this matter a number of investigators have conducted in vitro and in vivo toxicity assessments. However, a variety of different approaches for suspension of these particles (culture media, Tween 80, dimethyl sulfoxide, phosphate-buffered saline, fetal calf serum, and others), and different sources of materials have generated potentially conflicting outcomes. The quality of the dispersion of nanoparticles is very dependent on the medium used to suspend them, and this then will most likely affect the biological outcomes.  相似文献   
997.
Developing numerical methods for predicting microstructure in materials is a large and important research area. Two examples of material microstructures are Austenite and Martensite. Austenite is a microscopic phase with simple crystallographic structure while Martensite is one with a more complex structure. One important task in materials science is the development of numerical procedures which accurately predict microstructures in Martensite. In this paper we present a method for simulating material microstructure close to an Austenite-Martensite interface. The method combines a quasi-Newton optimization algorithm and a nonconforming finite element scheme that successfully minimizes an approximation to the total stored energy near the interface of interest. Preliminary results suggest that the minimizers of this energy functional located by the developed numerical algorithm appear to display the desired characteristics.  相似文献   
998.
999.
A 300-MHz quadrature direct digital frequency synthesizer/complex mixer (QDDSM) chip is presented. With a 32-bit input frequency control word, the tuning resolution is 0.07 Hz at the operating frequency of 300 MHz. The 12-bit I and Q inputs and 13-bit I and Q outputs offer a spurious-free dynamic range of 90.3 dB. The tuning latency is 13 clock cycles, which corresponds to 43 ns at 300 MHz. The tuning bandwidth (half the operating frequency) is 150 MHz. The IC is realized in 0.25-/spl mu/m TSMC CMOS technology with 4180 standard library cells and occupies a core area of 0.36 mm/sup 2/. At 300 MHz, the power dissipation is less than 400 mW. A key feature of the design is the creation of conditionally negating multipliers.  相似文献   
1000.
A new adaptive line enhancer (ALE) structure, called the Feedback ALE (FALE), is presented and is shown to be a constrained W adaptive filter. Extensive simulations show that the FALE gives a higher sine-to-broadband ratio (SBR) gain and smaller sine estimation error than does an equal-order ALE; conversely, the order of the FALE can be much low er than the ALE to achieve equivalent performance  相似文献   
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