Browsing by Title
Now showing items 60459-60478 of 143390
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Hypersonic phononic crystals
(Massachusetts Institute of Technology, 2007)Manipulation of the distribution of phonons inM a solid is important for both basic science and applications ranging from heat management to reduction of noise in electronic circuits and creating materials with superior ... -
Hyperspectral detection algorithms: Use covariances or subspaces?
(Society of Photo-optical Instrumentation Engineers, 2009-08)There are two broad classes of hyperspectral detection algorithms.1, 2 Algorithms in the first class use the spectral covariance matrix of the background clutter; in contrast, algorithms in the second class characterize ... -
Hyperspectral Probing of Exciton dynamics and Multiplication in PbSe Nanocrystals
(EDP Sciences, 2013-03)Height time hyperspectral near IR probing providing broad-band coverage is employed on PbSe nanocrystals, uncovering spectral evolution following high energy photo-excitation due to hot exciton relaxation and recombination. ... -
Hyperstage Graphite: Electrochemical Synthesis and Spontaneous Reactive Exfoliation
(Wiley Blackwell, 2018-01)Covalent modification of the π-electron basal planes of graphene enables the formation of new materials with enhanced functionality. An electrochemical method is reported for the formation of what is referred to as a ... -
Hyperthermal molecular beam dry etching of III-V compound semiconductors
(Massachusetts Institute of Technology, 1997) -
Hyperthermia in elliptical patterns
(Massachusetts Institute of Technology, 1984) -
Hyperthrombotic Milieu in COVID-19 Patients
(MDPI AG, 2020-10)COVID-19 infection has protean systemic manifestations. Experience from previous coronavirus outbreaks, including the current SARS-CoV-2, has shown an augmented risk of thrombosis of both macrovasculature and microvasculature. ... -
Hypervelocity impacts and the evolution of planetary surfaces and interiors
(Massachusetts Institute of Technology, 2009)The thesis consists of five studies relating impact processes to the evolution of planetary interiors as well as impact structures on planetary surfaces. Chapter 2 is concerned with developing methods for estimating the ... -
HyperVoice, a phone-based CSCS platform
(Cambridge, Mass. : Center for Coordination Science, Massachusetts Institute of Technology, Sloan School of Management, 1992) -
HyperVoice--groupware by telephone
(Massachusetts Institute of Technology, 1992) -
Hyphos--a self-organizing, wireless network
(Massachusetts Institute of Technology, 1997) -
Hypocretin neuron-specific transcriptome profiling identifies the sleep modulator Kcnh4a
(eLife Sciences Publications, Ltd., 2015-10)Sleep has been conserved throughout evolution; however, the molecular and neuronal mechanisms of sleep are largely unknown. The hypothalamic hypocretin/orexin (Hcrt) neurons regulate sleep/wake states, feeding, stress, and ... -
Hypodensity/Hyperdensity ; or, Apple skies
(Massachusetts Institute of Technology, 2008)Hypodensity/Hyperdensity is a reaction to the paradoxical modern urban condition of emptiness: the 'ring of drek,' left like a smear around Boston by post-industrial deflation. This area is close to both the crowded city ... -
Hypotension as a risk factor for acute kidney injury in ICU patients
(Institute of Electrical and Electronics Engineers, 2010-09)In the context of critical illness, hypotension may be associated with acute kidney injury (AKI). Using the MIMIC II database, we studied the risk of AKI in ICU patients as a function of both the severity and duration of ... -
A hypotensive episode predictor for intensive care based on heart rate and blood pressure time series
(IEEE Computer Society, 2011-03)In the intensive care unit (ICU), prompt therapeutic intervention to hypotensive episodes (HEs) is a critical task. Advance alerts that can prospectively identify patients at risk of developing an HE in the next few hours ... -
A hypothesis for basal ganglia-dependent reinforcement learning in the songbird
(Elsevier BV, 2011-10)Most of our motor skills are not innately programmed, but are learned by a combination of motor exploration and performance evaluation, suggesting that they proceed through a reinforcement learning (RL) mechanism. Songbirds ... -
A hypothesis for basal ganglia-dependent reinforcement learning in the songbird
(Elsevier BV, 2011-12)Most of our motor skills are not innately programmed, but are learned by a combination of motor exploration and performance evaluation, suggesting that they proceed through a reinforcement learning (RL) mechanism. Songbirds ... -
Hypothesis Formation and Evaluation in Medical Diagnosis
(1975-01-01)This thesis describes some aspects of a computer system for doing medical diagnosis in the specialized field of kidney disease. Because such a system faces the spectre of combinatorial explosion, this discussion concentrates ... -
Hypothesis testing via a comparator
(Institute of Electrical and Electronics Engineers (IEEE), 2012-07)This paper investigates the best achievable performance by a hypothesis test satisfying a structural constraint: two functions are computed at two different terminals and the detector consists of a simple comparator verifying ... -
Hypothesis, estimation, and validation of dynamic social models : energy demand modeling.
(Massachusetts Institute of Technology, 1975)
