Results 51 to 60 of about 109,795 (259)

Another dimension from LiDAR – Obtaining foliage density from full waveform data [PDF]

, 2011
LiDAR tells the user where surfaces are, not what they are. In this study we investigate the potential for waveform LiDAR to provide more information on the nature of the returns over forestry. Waveform LiDAR was acquired for ten Pinus radiata plots in a
Adams, Thomas, Beets, Peter, Parrish, Christopher   +2 more
core   +1 more source

Optimal Transport for Seismic Full Waveform Inversion

, 2016
Full waveform inversion is a successful procedure for determining properties of the earth from surface measurements in seismology. This inverse problem is solved by a PDE constrained optimization where unknown coefficients in a computed wavefield are ...
Engquist, Bjorn, Froese, Brittany D., Yang, Yunan   +2 more
core   +1 more source

A Principal Components Analysis Approach to Quantifying Foot Clearance and Foot Clearance Variability [PDF]

, 2019
Low foot clearance and high variability may be related to falls risk. Foot clearance is often defined as the local minimum in toe height during swing; however, not all strides have this local minimum.
Barrett, Barrett, Begg, Begg, Begg, Begg, Borg, Borg, Brandon, Brandon, Byju, Byju, Daffertshofer, Daffertshofer, De Asha, De Asha, Khandoker, Khandoker, Little, Little, Loverro, Loverro, Mills, Mills, Moosabhoy, Moosabhoy, Nagano, Nagano, Nagano, Nagano, Robinovitch, Robinovitch, Santhiranayagam, Santhiranayagam, Santhiranayagam, Santhiranayagam, Savin, Savin, Schulz, Schulz, Schulz, Schulz, Senden, Senden, Sullivan, Sullivan, Thies, Thies, Weinhandl, Weinhandl, Winter, Winter, Zeni, Zeni   +53 more
core   +2 more sources

Multibit Ferroelectric HfZrO Memcapacitor for Non‐Volatile Analogue Memory and Reconfigurable Electronics

Advanced Functional Materials, EarlyView.
Ferroelectric memcapacitors enable non‐volatile, voltage‐programmable capacitance tuning for adaptive electronics. A TiN/HfZrO/TiN device stack demonstrates more than eight stable capacitance states within a 24 pF memory window in compact 60 ×$\times$ 60 μm2$\umu{\rm m}^{2}$ devices at low operating voltages.
Deepika Yadav, Spyros Stathopoulos, Patrick Foster, Andreas Tsiamis, Mohamed Awadein, Hannah Levene, Themis Prodromakis   +6 more
wiley   +1 more source

Probabilistic Assessment of Damage from Same Shock Response Spectra due to Variations in Damping

Shock and Vibration, 2020
Interpretation of field data from shock tests and subsequent assessment of product safety margins via laboratory testing are based on the shock response spectra (SRS).
Arup Maji
doaj   +1 more source

Attention-based Wav2Text with Feature Transfer Learning

, 2017
Conventional automatic speech recognition (ASR) typically performs multi-level pattern recognition tasks that map the acoustic speech waveform into a hierarchy of speech units.
Nakamura, Satoshi, Sakti, Sakriani, Tjandra, Andros   +2 more
core   +1 more source

One-cycle control of switching converters [PDF]

, 1995
A new large-signal nonlinear control technique is proposed to control the duty-ratio d of a switch such that in each cycle the average value of a switched variable of the switching converter is exactly equal to or proportional to the control reference in
Smedley, Keyue M., Ćuk, Slobodan
core   +1 more source

Ultrasound‐Triggered Gelation for Restoring Biomechanical Properties of Degenerated Functional Spinal Units

Advanced Healthcare Materials, EarlyView.
This study introduces an innovative approach to treating intervertebral disc degeneration using ultrasound‐triggered in situ hydrogel formation. Proof‐of‐concept experiments using optimized biomaterial and ultrasound parameters demonstrate partial restoration of biomechanical function and successful integration into degenerated disc tissue, offering a ...
Veerle A. Brans, Anna P. Constantinou, Matthew J. Kibble, Valeria Nele, Daniel Reumann, Luca Bau, Sebastien J. P. Callens, James P. K. Armstrong, Nicolas Newell, Constantin C. Coussios, Molly M. Stevens, Michael D. Gray   +11 more
wiley   +1 more source

The Evolution of Distorted Rotating Black Holes II: Dynamics and Analysis

, 1994
We have developed a numerical code to study the evolution of distorted, rotating black holes. This code is used to evolve a new family of black hole initial data sets corresponding to distorted ``Kerr'' holes with a wide range of rotation parameters, and
A. Abrahams, A. Abrahams, A. Abrahams, C. T. Cunningham, D. Bernstein, D. Bernstein, D. Christodoulou, E. Seidel, E. Seidel, E. W. Leaver, Edward Seidel, G. L. Bretthorst, J. Bowen, J. York, L. L. Smarr, M. C. Miller, P. Anninos, P. Anninos, P. Anninos, S. Brandt, S. W. Hawking, Steven R. Brandt, T. Regge, V. Moncrief   +23 more
core   +1 more source

Evaluation of the Linear Relationship Between Pulse Arrival Time and Blood Pressure in ICU Patients: Potential and Limitations [PDF]

, 2018
A variety of techniques based on the indirect measurement of blood pressure (BP) by Pulse Transit Time (PTT) have been explored over the past few years.
Braiam Escobar-Restrepo, Braiam Escobar-Restrepo, Panayiotis A. Kyriacou, Robinson Torres-Villa   +3 more
core   +2 more sources