Results 101 to 110 of about 220,627 (193)

Optimization of Guard Ring Structures for Superior Dark Current Reduction and Improved Quantum Efficiency in InGaAs/InP APDs

IEEE Journal of the Electron Devices Society
Avalanche photodiodes (APDs) based on InGaAs/InP are pivotal for applications in low-light detection, yet their performance is often hindered by edge breakdown and high dark currents.
Zefang Xu, Yu Chang, Kai Qiao, Liyu Liu, Linmeng Xu, Mengyan Fang, Chang Su, Fei Yin, Jieying Wang, Tianye Liu, Ming Li, Dian Wang, Lizhi Sheng, Xing Wang   +13 more
doaj   +1 more source

The influence of quiet asymmetric magnetosphere on the cutoff rigidities of the main cone [PDF]

Some earlier studies show that cutoff rigidities of cosmic-ray particles in the model magnetospheric fields of internal and external sources have daily variations caused by asymmetry of the magnetic field due to the currents induced at the magnetopause ...
Danilova, O. A., Tyasto, M. I.
core   +1 more source

Characterizing the magnetic signal generated in the magnetosphere from 1996 to 2024 using ground geomagnetic data

Earth, Planets and Space
The geomagnetic field, as observed at the Earth’s surface or LEO satellite altitudes (between 300 km and 800 km), is the combination of signals generated by various internal and external sources. The internal sources are mainly associated with the liquid
Yalei Shi, Vincent Lesur, Erwan Thébault   +2 more
doaj   +1 more source

Stability of persistent currents in superfluid fermionic rings

Physical Review Research
We investigate the stability of persistent currents in superfluid fermionic gases confined to a ring geometry. Our study, conducted at zero temperature using time-dependent density functional theory, cover interaction regimes from strong (unitary Fermi ...
Klejdja Xhani, Andrea Barresi, Marek Tylutki, Gabriel Wlazłowski, Piotr Magierski   +4 more
doaj   +1 more source

Performance characteristics of ring-cusp thrusters with xenon propellant [PDF]

The performance characteristics and operating envelope of several 30-cm ring-cusp ion thrusters with xenon propellant were investigated. Results indicate a strong performance dependence on the discharge chamber boundary magnetic fields and resultant ...
Patterson, M. J.
core   +1 more source

Unsteady Dungey cycle from the point of view of Stokes’ theorem

Frontiers in Astronomy and Space Sciences
The Dungey cycle is considered from the formation of a magnetic barrier and necessary for dayside reconnection conditions till the electric field generation around the Birkeland current loop and magnetic flux circulation balance.
Vladimir S. Semenov, Igor V. Kubyshkin, Nikolai A. Tsyganenko, Nikolai V. Erkaev, Nikolai V. Erkaev, Marina V. Kubyshkina, Xiaogang Wang   +6 more
doaj   +1 more source

A study on the aromatic conjugation pathways and the ring currents of bridged [18]annulenes. [PDF]

RSC Adv, 2019
Tuoheti Q, Kerim A.
europepmc   +1 more source

Topological Ring Currents in Open-Shell Homologues of Clar's Goblet and Triangulene. [PDF]

J Phys Chem A
Dickens TK, Mallion RB.
europepmc   +1 more source

Interpreting Ring Currents from Hückel-Guided σ- and π-Electron Delocalization in Small Boron Rings. [PDF]

Molecules
Sacanamboy DS, García-Argote W, Pumachagua-Huertas R, Cárdenas C, Leyva-Parra L, Ruiz L, Tiznado W.   +6 more
europepmc   +1 more source

Global Aromatic Ring Currents in Neutral Porphyrin Nanobelts. [PDF]

ACS Nano
Vitek M, Deng JR, Anderson HL, Rončević I.   +3 more
europepmc   +1 more source