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By means of a metal opto-acoustic transducer we generate quasi-longitudinal and quasi-transverse picosecond strain pulses in a (311)-GaAs substrate and monitor their propagation by picosecond acoustic interferometry. By probing at the…

Gas identification is one of the most important functions of gas sensor systems. To identify gas species from sensing signals, however, gas input patterns (e.g. the gas flow sequence) must be controlled or monitored precisely with…

Applied Physics · Physics 2019-07-24 Gaku Imamura , Kota Shiba , Genki Yoshikawa , Takashi Washio

We report the calibration of a gaseous Time Projection Chamber based on Micromegas charge readout modules with cosmic ray muons, utilizing their penetrating power and relatively uniform energy deposition per unit length. Muon events were…

Field-Effect Transistors with graphene channels or GFETs are an interesting alternative for the detection of analytes in biological fluids since the electrical behavior of the channel changes when exposed to a sample (among other detection…

Medical Physics · Physics 2024-07-16 Ricardo Bravo , Ricardo Silva , Eric Barret , John Brunnings , Adianette Segarra

We explore electron transport through a moebius strip attached to two metallic electrodes by the use of Green's function technique. A parametric approach is used based on the tight-binding model to characterize the electron transport…

Mesoscale and Nanoscale Physics · Physics 2009-11-06 Santanu K. Maiti

To establish the presence and orientation of the proposed striped phase in ultra-high mobility 2D electron systems at filling factor 9/2, current path transport properties are determined by varying the separation and allignment of current…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 R. L. Willett , K. W. West , L. N. Pfeiffer

Channel conductance measurements can be used as a tool to study thermally activated electron transport in the sub-threshold region of state-of-art FinFETs. Together with theoretical Tight-Binding (TB) calculations, this technique can be…

We report a direct detection of time correlated single-electron tunneling oscillations in a series array of small tunnel junctions. Here the current, I, is made up of a lattice of charge solitons moving throughout the array by time…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Jonas Bylander , Tim Duty , Per Delsing

Time-tagging units and coincidence detectors are used in many scientific research fields. The required timing resolution and number of input channels are varying, but some emerging experiments in the field of quantum optics require up to 32…

Instrumentation and Detectors · Physics 2020-11-03 Attila Hidvegi

We propose a portable cartridge based lab-on-a-chip platform. The main sensing mechanism uses high frequency acoustic waves. Feasibility of two different transducers has been investigated for biological measurements. We used zincoxide (ZnO)…

Medical Physics · Physics 2017-10-17 Seyedfakhreddin Nabavi

Current state-of-the-art trackers often fail due to distractorsand large object appearance changes. In this work, we explore the use ofdense optical flow to improve tracking robustness. Our main insight is that, because flow estimation can…

Computer Vision and Pattern Recognition · Computer Science 2020-10-12 Jianing Qian , Junyu Nan , Siddharth Ancha , Brian Okorn , David Held

Reliable measurement of droplet/bubble size and velocity distributions in dense flows is desired in a variety of research fields, both for laboratory and industrial use. A new type of single-mode monofiber optical probe manufactured by A2…

Applied Physics · Physics 2021-10-26 Mathieu Alonzo , Anthony Lefebvre , Zhujun Huang , Stéphane Gluck , Alain Cartellier

We report on a flow velocity measurement technique based on snap-through detection of an electrostatically actuated, bistable micromechanical beam. We show that induced elecro-thermal Joule heating and the convective air cooling change the…

Applied Physics · Physics 2018-06-15 Yoav Kessler , Robert Ilic , Slava Krylov , Alex Liberzon

A scanning tunnelling microscope is used to pull a polythiophene wire from a Au(111) surface while measuring the current traversing the junction. Abrupt current increases measured during the lifting procedure are associated to the…

Regulatory compliance auditing across diverse industrial domains requires heightened quality assurance and traceability. Present manual and intermittent approaches to such auditing yield significant challenges, potentially leading to…

Computer Vision and Pattern Recognition · Computer Science 2025-02-03 Jia Syuen Lim , Ziwei Wang , Jiajun Liu , Abdelwahed Khamis , Reza Arablouei , Robert Barlow , Ryan McAllister

The Hanbury Brown-Twiss experiment has proved to be an effective means of measuring two-point correlation function of identical particles. We analyze experimental observation of stripes formation of a phase fluctuating Bose-Einstein…

Soft Condensed Matter · Physics 2016-08-31 Tarun Kanti Ghosh

Detectors planned for use at the Large Hadron Collider will operate in a radiation field produced by beam collisions. To predict the radiation damage to the components of the detectors, prototype devices are irradiated at test beam…

Instrumentation and Detectors · Physics 2015-06-17 Prabhakar Palni , Martin Hoeferkamp , Aaron Taylor , Sandip Vora , Haley McDuff , Qufei Gu , Sally Seidel

Sensors are routinely mounted on robots to acquire various forms of measurements in spatio-temporal fields. Locating features within these fields and reconstruction (mapping) of the dense fields can be challenging in resource-constrained…

Robotics · Computer Science 2019-01-29 Martin Asenov , Marius Rutkauskas , Derryck Reid , Kartic Subr , Subramanian Ramamoorthy

We develop a Bayesian particle filter for tracking traffic flows that is capable of capturing non-linearities and discontinuities present in flow dynamics. Our model includes a hidden state variable that captures sudden regime shifts…

Applications · Statistics 2017-11-15 Nicholas Polson , Vadim Sokolov

As gaseous detectors are operated at high rates of primary ionisation, ions created in the detector have a considerable impact on the performance of the detector. The upgraded ALICE Time Projection Chamber (TPC) will operate during LHC…

Instrumentation and Detectors · Physics 2017-05-09 Alexander Deisting , Chilo Garabatos , Alexander Szabo , Danilo Vranic
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