Results 31 to 40 of about 34,946 (149)

Frequency invariant beamforming for two-dimensional and three-dimensional arrays [PDF]

, 2007
A novel method for the design of two-dimensional (2-D) and three-dimensional (3-D)arrays with frequency invariant beam patterns is proposed. By suitable substitu- tions, the beam pattern of a 2-D or 3-D arrays can be regarded as the 3-D or 4-D Fourier ...
Doles III, Ghavami, Hixson, Ian K. Proudler, John G. McWhirter, Liu, Sekiguchi, Smith, Stephan Weiss, Van Trees, Ward, Ward, Wei Liu, Weiss   +13 more
core   +1 more source

Assessment of Soil Erosion Over Six Decades in a Long‐Term Experiment Using Fallout 137Cs and RUSLE: A South American Case Study

Land Degradation &Development, EarlyView.
ABSTRACT Soil erosion remains a major global concern affecting agricultural productivity and land sustainability. This study investigates the magnitude and variability of soil erosion in a long‐term experiment (LTE) established in 1963 in Colonia, Uruguay, aiming to compare the performance of the 137Cs tracer technique and the RUSLE model across ...
Marcos Tassano, Mirel Cabrera, Joan Gonzalez, Mario Perez‐Bidegain, Olivier Evrard, Kathrin Grahmann, J. Andrés Quincke   +6 more
wiley   +1 more source

AiResearch QCGAT engine: Acoustic test results [PDF]

, 1980
The noise levels of the quiet, general aviation turbofan (QCGAT) engine were measured in ground static noise tests. The static noise levels were found to be markedly lower than the demonstrably quiet AiResearch model TFE731 engine.
Kisner, L. S.
core   +1 more source

A temporally-constrained convolutive probabilistic model for pitch detection [PDF]

, 2011
A method for pitch detection which models the temporal evolution of musical sounds is presented in this paper. The proposed model is based on shift-invariant probabilistic latent component analysis, constrained by a hidden Markov model.
Benetos, E., Dixon, S.
core   +2 more sources

Octave‐Spanning, Deterministic Single Soliton Generation in 4H‐Silicon Carbide‐On‐Insulator Microring Resonators

Laser &Photonics Reviews, EarlyView.
The miniaturization of metrology and precision spectroscopy systems requires robust, turn‐key microcombs with broad bandwidth, low threshold, and high efficiency. Here, high‐Q, dispersion‐engineered microresonators in a high‐confinement nonlinear SiC platform, combined with waveguide‐enabled thermal management and laser cooling, enable deterministic ...
Yi Zheng, Liping Zhou, Chengli Wang, Yanjing Zhao, Ailun Yi, Kresten Yvind, Xin Ou, Minhao Pu   +7 more
wiley   +1 more source

Defining Quality of Life: The Perspective of People Living with Parkinson's Disease

Movement Disorders Clinical Practice, EarlyView.
Abstract Background Little is known about how people with Parkinson's conceptualize “quality of life.” Objective To describe the meaning of “quality of life” from the perspective of people with Parkinson's. Methods Participants (N = 42) were asked “What does the term ‘quality of life’ mean to you?” Definitions were analyzed using inductive qualitative ...
Samantha Dorrance, Richa Patel, Glenn T. Stebbins, Jamie L. Adams, Allison M. Allen, Tara Hastings, Soania Mathur, Onanong Phokaewvarangkul, Gary Rafaloff, Rajasumi Rajalingam, Anette Schrag, Christine Sun, Jennifer Mammen, Connie Marras   +13 more
wiley   +1 more source

Comparing Probabilistic Models for Melodic Sequences [PDF]

, 2011
Modelling the real world complexity of music is a challenge for machine learning. We address the task of modeling melodic sequences from the same music genre.
D. Eck, D. Ron, D.H. Ackley, F. Lerdahl, F. Wood, G.E. Hinton, G.E. Hinton, G.W. Taylor, G.W. Taylor, H. Lee, H. Lee, I. Sutskever, M. Norouzi, S. Dubnov, V. Lavrenko   +14 more
core   +3 more sources

In Vivo Mapping of Catecholaminergic Loss and Iron Deposition in Huntington's Disease

Movement Disorders, EarlyView.
Abstract Background The pathophysiology of Huntington's disease (HD) remains obscure. Magnetic resonance imaging (MRI) can reveal in vivo molecular changes related to disease pathology. Objectives To investigate catecholaminergic neuronal integrity and subcortical brain iron accumulation in HD employing neuromelanin‐sensitive MRI, and quantitative ...
Edoardo R. de Natale, Heather Wilson, Efstratios Karavasilis, Athanasia Liozidou, Chrisoula Kartanou, Georgios Velonakis, Jens Kuhle, Ioannis Zalonis, Georgia Karadima, Leonidas Stefanis, Georgios Koutsis, Marios Politis   +11 more
wiley   +1 more source

Non-bifurcatory Diairesis and Greek Music Theory: A resource for Plato in the Statesman? [PDF]

, 2013
At 287c of the Statesman the Eleatic Visitor — or, more deeply, Plato — faces a daunting task. Because statesmanship has been shown to collaborate with “countless” other arts that share with it the work of “caring” for the city, to understand ...
Miller, Mitchell
core  

Apple Hearing Test Feature for the AirPods Pro 2: Accuracy, Reliability, and Time‐Efficiency

Otolaryngology–Head and Neck Surgery, EarlyView.
Abstract Objective To evaluate the accuracy, test‐retest reliability, and time‐efficiency of Apple's Hearing Test Feature (HTF) compared to reference standard pure‐tone audiometry (PTA). Study Design Cross‐sectional validation study. Setting Single‐center study at a university clinic. PTA was performed in a sound‐treated booth.
Megan Kruger, Vinaya Manchaiah, De Wet Swanepoel   +2 more
wiley   +1 more source