Results 31 to 40 of about 373,888 (279)

Shot noise in a harmonically driven ballistic graphene transistor [PDF]

, 2016
We study time-dependent electron transport and quantum noise in a ballistic graphene field effect transistor driven by an ac gate potential. The non-linear response to the ac signal is computed through Floquet theory for scattering states and Landauer-B\"
Korniyenko, Yevgeniy, Lofwander, Tomas, Shevtsov, Oleksii   +2 more
core   +2 more sources

Suppression of Density Fluctuations in a Quantum Degenerate Fermi Gas

, 2010
We study density profiles of an ideal Fermi gas and observe Pauli suppression of density fluctuations (atom shot noise) for cold clouds deep in the quantum degenerate regime.
Aviv Keshet, Christian Sanner, D. Pines, Edward J. Su, K. Helmerson, Ralf Gommers, T. Mueller, W. Ketterle, Wolfgang Ketterle, Wujie Huang, Y. Castin, Yong-il Shin   +11 more
core   +1 more source

Origin and Suppression of $1/f$ Magnetic Flux Noise [PDF]

, 2016
Magnetic flux noise is a dominant source of dephasing and energy relaxation in superconducting qubits. The noise power spectral density varies with frequency as $1/f^\alpha$ with $\alpha \sim 1$ and spans 13 orders of magnitude.
Beck, M. A., Freeland, J. W., Kumar, P., McDermott, R., Pappas, D. P., Sendelbach, S., Wang, Hui, Wang, Zhe, Wu, R. Q., Yu, C. C.   +9 more
core   +2 more sources

Adaptaquin is selectively toxic to glioma stem cells through disruption of iron and cholesterol metabolism

Molecular Oncology, EarlyView.
Adaptaquin selectively kills glioma stem cells while sparing differentiated brain cells. Transcriptomic and proteomic analyses show Adaptaquin disrupts iron and cholesterol homeostasis, with iron chelation amplifying cytotoxicity via cholesterol depletion, mitochondrial dysfunction, and elevated reactive oxygen species.
Adrien M. Vaquié, Davod R. Shah, Eliane E. S. Brechbühl, Michael McNicholas, Zhaoyang Xu, John H. Stockley, Laura Morcom, Diana Gold Diaz, Gemma C. Girdler, Rachel V. Seear, Gabriel Balmus, Rajiv R. Ratan, Harry Bulstrode, James A. Nathan, Manav Pathania, Kevin M. Brindle, David H. Rowitch   +16 more
wiley   +1 more source

Five-Step Phase-Shift-Based Multiwavelength Averaging for Extrinsic Fabry–Perot Interferometric Sensors

Photonics, 2023
In order to address issues such as low demodulation accuracy, large demodulation errors, small dynamic range, and complex algorithms for the extrinsic Fabry–Perot interferometric (EFPI) sensor, a five-step phase-shift algorithm based on a multiwavelength
Zheng Liu, Qiong Yao, Ji Xia, Gang Liu, Shuidong Xiong, Qingkai Hou   +5 more
doaj   +1 more source

Shot noise suppression at room temperature in atomic-scale Au junctions

, 2010
Shot noise encodes additional information not directly inferable from simple electronic transport measurements. Previous measurements in atomic-scale metal junctions at cryogenic temperatures have shown suppression of the shot noise at particular ...
Agrait N., Blanter Y. M., Chen F., Chen Y.-C., Chen Y.-C., Djukic D., Dutta P., D’Agosta R., Grüter L., Koch J., Kumar A., Ludoph B., Mitra A., Park Y. S., Reznikov M., Scheer E., Sela E., Tsutsui M., van den Brom H. E., Venkataraman L., Venkataraman L., Ward D. R., Weissman M. B., Wu Z., Xiao X. Y., Yanson I. K.   +25 more
core   +1 more source

Infrared laser sampling of low volumes combined with shotgun lipidomics reveals lipid markers in palatine tonsil carcinoma

Molecular Oncology, EarlyView.
Nanosecond infrared laser (NIRL) low‐volume sampling combined with shotgun lipidomics uncovers distinct lipidome alterations in oropharyngeal squamous cell carcinoma (OPSCC) of the palatine tonsil. Several lipid species consistently differentiate tumor from healthy tissue, highlighting their potential as diagnostic markers.
Leonard Kerkhoff, Manuela Moritz, Dennis Eggert, Anna Worthmann, Joerg Heeren, Henrike Zech, Till S. Clauditz, Waldemar Wilczak, Hartmut Schlüter, Christian S. Betz, Arne Böttcher, Jan Hahn   +11 more
wiley   +1 more source

Numerical Study on Aerodynamic Noise Reduction of Pantograph

Applied Sciences, 2022
A hybrid method incorporating the simulations of noise sources with delayed detached eddy simulation (DDES) and calculations of far-field noise with the Ffowcs Williams–Hawkings (FW-H) equation is used to study the suppression technique for the ...
Fangcheng Shi, Fushan Shi, Xudong Tian, Tiantian Wang   +3 more
doaj   +1 more source

Shot Noise Suppression in Avalanche Photodiodes

, 2005
We identify a new shot noise suppression mechanism in a thin (~100 nm) heterostructure avalanche photodiode. In the low-gain regime the shot noise is suppressed due to temporal correlations within amplified current pulses. We demonstrate in a Monte Carlo
A. van der Ziel, Feng Ma, Joe C. Campbell, R. J. McIntyre, Shuling Wang   +4 more
core   +1 more source

Effects of noise suppression and envelope dynamic range compression on the intelligibility of vocoded sentences for a tonal language [PDF]

, 2017
Vocoder simulation studies have suggested that the carrier signal type employed affects the intelligibility of vocoded speech. The present work further assessed how carrier signal type interacts with additional signal processing, namely, single-channel ...
Chen F., Dingchang Zheng, Fei Chen, Kamath S., Scalart P., Watson C. S., Yu Tsao   +6 more
core   +2 more sources