Results 21 to 30 of about 28,738 (129)

Can Gamma-Ray Burst Jets Break Out the First Stars?

open access: yes, 2010
We show that a relativistic gamma-ray burst (GRB) jet can potentially pierce the envelope of very massive first generation star (Population III; Pop III) by using the stellar density profile to estimate both the jet luminosity (via accretion) and its ...
Ioka, Kunihito, Suwa, Yudai
core   +1 more source

Large-signal charge control modeling of photoreceivers for applications up to 40 Gb/s [PDF]

open access: yes, 2009
A charge control model was used to simulate the sensitivity and responsivity in a range of photodetector configurations including heterojunction bipolar phototransistors (HPTs), PIN-HBT, and APDs.
Helme, J.P, Houston, P.A, Tan, C.H
core   +1 more source

Localized Surface Plasmons in Vibrating Graphene Nanodisks [PDF]

open access: yes, 2016
Localized surface plasmons are confined collective oscillations of electrons in metallic nanoparticles. When driven by light, the optical response is dictated by geometrical parameters and the dielectric environment and plasmons are therefore extremely ...
Christensen, Johan   +4 more
core   +2 more sources

Hydraulic Analysis of Micro-irrigation Laterals: a New Approach [PDF]

open access: yes, 1994
The current approach in hydraulic analysis of micro-irrigation laterals has been derived from sprinkler irrigation design where pipe sizes and flow rates are large.
Mohd Soom, Mohd Amin, Svehlik, Z. J.
core  

Epitaxial lift-off for solid-state cavity quantum electrodynamics

open access: yes, 2015
We present a new approach to incorporate self-assembled quantum dots into a Fabry-P\'{e}rot-like microcavity. Thereby a 3$\lambda$/4 GaAs layer containing quantum dots is epitaxially removed and attached by van der Waals bonding to one of the microcavity
Greuter, Lukas   +7 more
core   +1 more source

Half-life of the electron-capture decay of 97Ru: Precision measurement shows no temperature dependence [PDF]

open access: yes, 2009
We have measured the half-life of the electron-capture (ec) decay of 97Ru in a metallic environment, both at low temperature (19K), and also at room temperature. We find the half-lives at both temperatures to be the same within 0.1%.
D. J. Silvester   +7 more
core   +2 more sources

Performance of disc filters as affected by the use of mixed fertilizers supplying major nutrients during drip irrigation

open access: yesAgricultural Water Management
Drip fertigation is an effective method for enhancing water and fertilizer use efficiency. Filters, particularly disc filters, play a crucial role in preventing emitter clogging. However, fertilizers may influence disc filter performance.
Chang Lv   +8 more
doaj   +1 more source

Non-thermal radiation from a pulsar wind interacting with an inhomogeneous stellar wind

open access: yes, 2016
Binaries hosting a massive star and a non-accreting pulsar are powerful non-thermal emitters due to the interaction of the pulsar and the stellar wind.
Bosch-Ramon, Valentí   +4 more
core   +1 more source

DIMSUB, a computer program for designing microirrigation subunits. Tool definition and case studies

open access: yesScientia Agricola
: DIMSUB is a computer program to complement a decision support tool (DST) to effectively study different hydraulic design alternatives in microirrigation systems. We developed environments in Visual Basic for applications for Microsoft Excel® that allow
Carmen Virginia Palau   +3 more
doaj   +1 more source

THz Electronics for Data Centre Wireless Links - the TERAPOD Project [PDF]

open access: yes, 2017
This paper presents an overview of the terahertz (THz) resonant tunneling diode (RTD) technology that will be used as one of the approaches towards wireless data centres as envisioned on the eU H2020 TERAPOD project.
Al-Khalidi, Abdullah   +3 more
core   +1 more source

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