Publications by authors named "Lars Hoff"

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Estimating Effective Material Parameters of Inhomogeneous Layers Using Finite Element Method.
Per Kristian Bolstad, Martijn E Frijlink, Tung Manh, Lars Hoff

IEEE Trans Ultrason Ferroelectr Freq Control· December 2022

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Underwater single crystal piezocomposite transducer with extended usable frequency band.
Ellen Sagaas Røed, Martin Bring, Martijn Frijlink, Andreas Henriksen, Frank Tichy, Lars Hoff

Ultrasonics· September 2022

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Optimization of Matching Layers to Extend the Usable Frequency Band for Underwater Single-Crystal Piezocomposite Transducers.
Ellen Sagaas Roed, Martin Bring, Frank Tichy, Andreas Henriksen, Else-Marie Asjord, Lars Hoff

IEEE Trans Ultrason Ferroelectr Freq Control· February 2022

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Myocardial Strain Measured by Epicardial Transducers-Comparison Between Velocity Estimators.
Thuy Thu Nguyen, Andreas W Espinoza, Stefan Hyler, Espen W Remme, Jan D'hooge, Lars Hoff

Ultrasound Med Biol· May 2021

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Nonlinearity in a Medical Ultrasound Probe Under High Excitation Voltage.
Thong Huynh, Geir Ultveit Haugen, Trym Eggen, Lars Hoff

IEEE Trans Ultrason Ferroelectr Freq Control· March 2021

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A Dual-Frequency Coupled Resonator Transducer.
Kenneth Kirkeng Andersen, Martijn E Frijlink, Tonni Franke Johansen, Lars Hoff

IEEE Trans Ultrason Ferroelectr Freq Control· October 2020

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Estimating Regional Myocardial Contraction Using Miniature Transducers on the Epicardium.
Thuy Thu Nguyen, Andreas W Espinoza, Stefan Hyler, Espen W Remme, Jan D'hooge, Lars Hoff

Ultrasound Med Biol· November 2019

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A Harmonic Dual-Frequency Transducer for Acoustic Cluster Therapy.
Kenneth K Andersen, Andrew Healey, Nigel L Bush, Martijn E Frijlink, Lars Hoff

Ultrasound Med Biol· September 2019

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A Numerical Optimization Method for Transducer Transfer Functions by the Linearity of the Phase Spectrum.
Kenneth Kirkeng Andersen, Martijn E Frijlink, Lars Hoff

IEEE Trans Ultrason Ferroelectr Freq Control· January 2019

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The challenge of distinguishing mechanical, electrical and piezoelectric losses.
Marcus Wild, Martin Bring, Einar Halvorsen, Lars Hoff, Karina Hjelmervik

J Acoust Soc Am· October 2018

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Gravity Compensation Method for Combined Accelerometer and Gyro Sensors Used in Cardiac Motion Measurements.
Magnus Reinsfelt Krogh, Giang M Nghiem, Per Steinar Halvorsen, Ole Jakob Elle, Ole-Johannes Grymyr, Lars Hoff

Ann Biomed Eng· May 2017

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Air-coupled ultrasonic through-transmission thickness measurements of steel plates.
Grunde Waag, Lars Hoff, Petter Norli

Ultrasonics· February 2015

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Fabrication and assembly of MEMS accelerometer-based heart monitoring device with simplified, one step placement.
Fjodors Tjulkins, Anh-Tuan Thai Nguyen, Erik Andreassen, Knut Aasmundtveit, Nils Hoivik, Lars Hoff

J Med Eng Technol· January 2015

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Modeling of micromachined silicon-polymer 2-2 composite matching layers for 15MHz ultrasound transducers.
Tung Manh, Geir Uri Jensen, Tonni F Johansen, Lars Hoff

Ultrasonics· April 2014

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Microfabrication of stacks of acoustic matching layers for 15 MHz ultrasonic transducers.
Tung Manh, Anh-Tuan Thai Nguyen, Tonni F Johansen, Lars Hoff

Ultrasonics· February 2014

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Microfabricated 1-3 composite acoustic matching layers for 15 MHz transducers.
Tung Manh, Geir Uri Jensen, Tonni F Johansen, Lars Hoff

Ultrasonics· August 2013

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Simulation model of cardiac three dimensional accelerometer measurements.
Espen W Remme, Lars Hoff, Per Steinar Halvorsen, Anders Opdahl, Erik Fosse

Med Eng Phys· September 2012

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Stabilization of Gas Bubbles Released from Water-Soluble Carbohydrates Using Amphiphilic Compounds: Preparation of Formulations and Acoustic Monitoring of Bubble Lifetime.
Lars Hoff, Per A Foss, Knut Dyrstad, Jo Klaveness, Pål Rongved

J Surfactants Deterg· October 2011

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Automated detection of myocardial ischaemia by epicardial miniature ultrasound transducers--a novel tool for patient monitoring during cardiac surgery.
Andreas Espinoza, Per Steinar Halvorsen, Helge Skulstad, Runar Lundblad, Jan Fredrik Bugge, Lars Hoff

Eur J Cardiothorac Surg· January 2011

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Automatic real-time detection of myocardial ischemia by epicardial accelerometer.
Per Steinar Halvorsen, Espen W Remme, Andreas Espinoza, Helge Skulstad, Runar Lundblad, Lars Hoff

J Thorac Cardiovasc Surg· April 2010

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Detecting myocardial ischaemia using miniature ultrasonic transducers--a feasibility study in a porcine model.
Andreas Espinoza, Per Steinar Halvorsen, Lars Hoff, Helge Skulstad, Erik Fosse

Eur J Cardiothorac Surg· January 2010

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Validation of cardiac accelerometer sensor measurements.
Espen W Remme, Lars Hoff, Per Steinar Halvorsen, Edvard Naerum, Helge Skulstad

Physiol Meas· December 2009

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A multivariate density estimator for contrast agent injection monitoring using a Bayesian sparse kernel approach.
Morten Forfang, Lars Hoff, Nicolay Berard-Andersen, Gjermund F Olsen, Knut Brabrand

Annu Int Conf IEEE Eng Med Biol Soc· May 2009

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Feasibility of a three-axis epicardial accelerometer in detecting myocardial ischemia in cardiac surgical patients.
Per Steinar Halvorsen, Andreas Espinoza, Lars Albert Fleischer, Ole Jakob Elle, Lars Hoff

J Thorac Cardiovasc Surg· December 2008

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Assembly and packaging of a three-axis micro accelerometer used for detection of heart infarction.
Kristin Imenes, Knut Aasmundtveit, Ellen Marie Husa, Jan Olav Høgetveit, Steinar Halvorsen, Lars Hoff

Biomed Microdevices· December 2007

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