Publications
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Frontostriatal Fiber Bundle Compromise in HIV Infection Without Dementia
Quantitative fiber tracking derived from diffusion tensor imaging (DTI) was used to determine whether white matter association, projection, or commissural tracts are affected in nondemented individuals with HIV infection and to identify…
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Action Exemplar Based Real-Time Action Detection
We propose a real-time action detection system based on a novel action representation and an effective learning method with a small training set. We represent actions with a new feature…
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Effect of Various Coal Contaminants on the Performance of Solid Oxide Fuel Cells: Part II. Ppm and Sub-Ppm Level Testing
The poisoning effects of various trace contaminants in the coal-derived syngas stream at ppm and sub-ppm level on the performance of Ni-YSZ/YSZ/LSM solid oxide fuel cells were studied at extended…
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Test-Retest Reliability of Web-Based Retrospective Self-Report of Tobacco Exposure and Risk
The goal of this study was to examine the reliability of self-report of a specific health-affecting behavior, tobacco use, and its associated risk and protective factors as examined with a…
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Cavity Expansion Experiments with Spherical Explosive Charges in Concrete
Three experiments were conducted with 1-lb explosive spheres embedded in large concrete cylinders with flatpack stress gages and Dremin loop velocity gages surrounding the charge.
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Does Session Variability Compensation in Speaker Recognition Model Intrinsic Variation Under Mismatched Conditions?
We find that ISV compensation is remarkably successful on a corpus of intrinsic variation that is highly controlled for channel (a dominant component of ISV). The results are particularly surprising…
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Nonprofit Organizations and Pharmaceutical Research and Development
To provide a perspective on NPO business models, 10 SRI case studies are summarized herein, including basic and contract research, discovery of new drugs and biologics, pharmaceutical and biotech R&D…
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First Observations of Large-Scale Wave Structure and Equatorial Spread F Using Certo Radio Beaconon the C/NOFS Satellite
First observations of large-scale wave structure and the subsequent development of equatorial spread F, using total electron content derived from the ground based reception of beacon signals from the CERTO…
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Ultra-Low-Power Electronics for Non-Invasive Medical Monitoring
We focus on the monitoring of the heart and describe a micropower electrocardiograph, an ultra-low-power pulse oximeter, an ultra-low-power phonocardiograph, an integrated-circuit switched-capacitor model of the heart, and a low-power…
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The Wake-Promoting Effects of Hypocretin-1 are Attenuated in Old Rats
We sought to determine whether the wake-promoting effect of hypocretin changes with age in Wistar rats, a strain in which age-related changes in both sleep and hypocretin signaling have been…
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Building a Highly Accurate Mandarin Speech Recognizer with Language-Independent Technologies and Language-Dependent Modules
We describe a system for highly accurate large-vocabulary Mandarin speech recognition. The prevailing hidden Markov model based technologies are essentially language independent and constitute the backbone of our system.
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Feature-based and channel-based analyses of intrinsic variability in speaker verification
In this paper we explore the use of other speaker verification systems on the telephone channel data and compare against the GMM baseline. We found the GMM system to be…