Results 51 to 60 of about 1,475,369 (378)

Effect of impact ionization in the InGaAs absorber on excess noise of avalanche photodiodes [PDF]

, 2005
The effects of impact ionization in the InGaAs absorption layer on the multiplication, excess noise and breakdown voltage are modeled for avalanche photodiodes (APDs), both with InP and with InAlAs multiplication regions.
David, J.P.R., Ng, J.S., Rees, G.J., Tan, C.H.   +3 more
core   +2 more sources

Sensing Properties of a Novel Temperature Sensor Based on Field Assisted Thermal Emission

Sensors, 2017
The existing temperature sensors using carbon nanotubes (CNTs) are limited by low sensitivity, complicated processes, or dependence on microscopy to observe the experimental results.
Zhigang Pan, Yong Zhang, Zhenzhen Cheng, Jiaming Tong, Qiyu Chen, Jianpeng Zhang, Jiaxiang Zhang, Xin Li, Yunjia Li   +8 more
doaj   +1 more source

Double ionization of a three-electron atom: Spin correlation effects

, 2019
We study the effects of spin degrees of freedom and wave function symmetries on double ionization in three-electron systems. Each electron is assigned one spatial degree of freedom.
Eckhardt, Bruno, Efimov, Dmitry K., Prauzner-Bechcicki, Jakub S., Thiede, Jan H., Zakrzewski, Jakub   +4 more
core   +1 more source

Coulomb-Volkov approach of ionization by extreme ultraviolet laser pulses in the subfemtosecond regime

, 2002
In conditions where the interaction betweeen an atom and a short high-frequency extreme ultraviolet laser pulse is a perturbation, we show that a simple theoretical approach, based on Coulomb-Volkov-type states, can make reliable predictions for ...
A. Basile, A. Nordsieck, E. Cormier, E. Cormier, F. Elhlotzky, G. Duchateau, G. Duchateau, G. Duchateau, G. Duchateau, G. Duchateau, M. Jain, P. M. Paul, R. Gayet   +12 more
core   +1 more source

The ionization gage [PDF]

Journal of the Franklin Institute, 1919
n ...
Dushman, S., Found, C. G.
openaire   +2 more sources

Theoretical study of ionization profiles of molecular clouds near supernova remnants: Tracing the hadronic origin of GeV gamma radiation

, 2014
Context: Since a few years, signatures of supernova remnants associated with molecular clouds have been detected in gamma rays. Whether these gamma rays are generated by cosmic ray electrons or by cosmic ray protons is usually not known. The detection of
Röken, Christian, Schuppan, Florian, Tjus, Julia Becker   +2 more
core   +1 more source

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Interpreting the Ionization Sequence in AGN Emission-Line Spectra [PDF]

, 2013
We investigate the physical cause of the great range in the ionization level seen in the spectra of narrow lined active galactic nuclei (AGN). Mean field independent component analysis identifies examples of individual SDSS galaxies whose spectra are not
Allen, James T., Baldwin, Jack A., Ferland, Gary J., Hewett, Paul C., Richardson, Chris T.   +4 more
core   +3 more sources

Mechanistic basis for inhibition of the extended‐spectrum β‐lactamase GES‐1 by enmetazobactam and tazobactam

FEBS Letters, EarlyView.
Antimicrobial resistance (AMR) is of huge importance, resulting in over 1 million deaths each year. Here, we describe how a new drug, enmetazobactam, designed to help fight resistant bacterial diseases, inhibits a key enzyme (GES‐1) responsible for AMR. Our data show it is a more potent inhibitor than the related tazobactam, with high‐level computation
Michael Beer, Philip Hinchliffe, Marko Hanževački, Christopher R. Bethel, Catherine L. Tooke, Marc W. Van der Kamp, Krisztina M. Papp‐Wallace, Robert A. Bonomo, Stuart Shapiro, Adrian J. Mulholland, James Spencer   +10 more
wiley   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source