Use of gas bubbles for ultrasound Doppler flow velocity profile measurement

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A modular multiple frequency inductive link to wirelessly power multiple miniaturized implants

Sandro Carrara, Diego Ghezzi, Gian Luca Barbruni

A modular multiple frequency coils inductive link system to wirelessly provide power for at least a medical implant at an output of a receiving coil, whereby the receiving coil is configured to be implanted in an organism. The modular multiple frequency co ...

2024

The influence of the gas on the dynamics of cavitation bubbles

Davide Bernardo Preso

Cavitation bubbles, extensively investigated in fluid mechanics, present enduring challenges in hydraulic machinery, while holding considerable potential for practical applications in biomedicine and sonochemistry. Despite more than a century of research, ...

EPFL2023

Optimization Method for Extracting Stabilizer Geometry and Properties of REBCO Tapes

Francesco Grilli, Nicolo' Riva, Arooj Akbar, Bertrand Dutoit, Bertrand Dutoit

A good knowledge of material properties is a critical aspect for modeling high-temperature superconductor (HTS) devices. However, the electrical resistivity of coated conductors above the critical current is limited. The major challenge in characterizing t ...

2021

Measurement of the inner structure of turbidity currents by ultrasound velocity profiling

Giovanni De Cesare, Shun Nomura, Jumpei Hitomi

The inner velocity structure and particle concentration profile of opaque turbidity currents were mea- sured simultaneously by ultrasound velocity profilers. Currents consisting of a quartz particle suspension were generated by using the lock-exchange meth ...

2021

Progress on Tests on Splices Between Nb3Sn Rutherford Cables for Graded High-Field Accelerator Magnets

Pierluigi Bruzzone, Mithlesh Kumar, Vincenzo D'Auria

Future high-field accelerator magnets foresee the extensive use of Nb3Sn, more expensive than the Nb-Ti of LHC. For projects involving the series production of magnets, conductor grading is mandatory in order to reduce the cost. To allow grading ...

IEEE Institute of Electrical and Electronics Engineers2021

The Impact of Surfactants on the Inertial Separation of Bubbles in Microfluidic Electrolyzers

Demetri Psaltis, Seyyed Mohammad Hosseini Hashemi, Pooria Hadikhani

Improving the throughput of electrochemical reactions such as water electrolysis is an ongoing effort. In a membrane-less electrolyzer, product separation can be achieved via controlled two-phase flows within the electrochemical flow cells. In this case, i ...

ELECTROCHEMICAL SOC INC2020

Transient Electronics for Smart Biodegradable Medical Implants

Matthieu Jean Michel Rüegg

Bioresorbable implantable medical devices show great potential for applications requiring medical care over well-defined periods of time. Such implants naturally degrade and resorb in the body, which eliminates adverse long-term effects or the need for a s ...

EPFL2020

Five-minute average horizontal wind velocity data combined from both sensors (which has been corrected for air-flow distortion) from the Antarctic Circumnavigation Expedition (ACE) 2016/2017 legs 0 to 4

Julia Schmale, Jenny Thomas, Sebastian Johannes Heinz-Josef Landwehr

Dataset abstract The horizontal wind velocity data from the Antarctic Circumnavigation Expedition (ACE) 2016/2017 legs 0 to 4 has been corrected for air-flow distortion. The measurements from both the port and starboad side anemometer were ...

2020

AC Loss Measurement of the DEMO TF React&Wind Conductor Prototype No. 2

Pierluigi Bruzzone, Kamil Sedlák, Boris Stepanov

The EUROfusion DEMO is being designed as the fusion machine to be built after ITER. During the preconceptual phase, several design options are investigated by theoretical analyses as well as tests on newly developed conductor prototypes. One design option ...

IEEE Institute of Electrical and Electronics Engineers2020

Nonlinear electrical conductivity through the thickness of multidirectional carbon fiber composites

Marcos Rubinstein, Xi Chen, Anastasios Vassilopoulos, Jie Li

Lightning strikes pose a serious natural threat to carbon fiber-reinforced poly- mers (CFRPs). Knowledge of the electrical current distribution is essential for modeling the interaction between CFRP with lightning. In most applications, the anisotropy of C ...

2019

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Five-minute average horizontal wind velocity data combined from both sensors (which has been corrected for air-flow distortion) from the Antarctic Circumnavigation Expedition (ACE) 2016/2017 legs 0 to 4

Julia Schmale, Jenny Thomas, Sebastian Johannes Heinz-Josef Landwehr

2020