Results 11 to 20 of about 315,310 (78)

Gravitational waves in conformal gravity

open access: yesPhysics Letters B, 2018
We consider the gravitational radiation in conformal gravity theory. We perturb the metric from flat Mikowski space and obtain the wave equation after introducing the appropriate transformation for perturbation.
Rongjia Yang
doaj   +1 more source

Design of a diamond-shaped thermal concentrator with homogeneous materials

open access: yesAIP Advances, 2018
We present a diamond-shaped thermal concentrator which can compress heat fluxes along predefined directions, thus yielding a heating region with high temperature gradients.
Qingxiang Ji   +4 more
doaj   +1 more source

On the electroweak contribution to the matching of the strong coupling constant in the SM

open access: yesPhysics Letters B, 2015
The effective renormalizable theory describing electromagnetic and strong interactions of quarks of five light flavors (nf=5 QCD×QED) is considered as a low-energy limit of the full Standard Model.
A.V. Bednyakov
doaj   +1 more source

Influence of experimental parameters inherent to optical fibers on Quantum Key Distribution, the protocol BB84

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2018
In this work, we represent the principle of quantum cryptography (QC) that is based on fundamental laws of quantum physics. QC or Quantum Key Distribution (QKD) uses various protocols to exchange a secret key between two communicating parties.
L. Bouchoucha, S. Berrah, M. Sellami
doaj   +1 more source

On the Smarr formulas for electrovac spacetimes with line singularities

open access: yesPhysics Letters B, 2020
Using the revised Komar-Tomimatsu approach, we derive Smarr mass formulas for stationary axisymmetric solutions of the Einstein-Maxwell equations containing line singularities (defects) on the polar axis.
Gérard Clément, Dmitri Gal'tsov
doaj   +1 more source

Dependence of Sheet Resistivity on Urbach Energy of Nano TiO2 - Graphene-based Electrode for DSSC Application [PDF]

open access: yes
The importance of renewable energy cannot be over-emphasized. Titanium IV oxide (TiO2 ) is the most suitable semiconductor for dye-sensitized solar cells (DSSC) due to its chemical stability, non-toxicity and excellent optoelectronic properties.
Mugo, Simon Waweru   +2 more
core   +2 more sources

Dilute Fermi gas at fourth order in effective field theory

open access: yesPhysics Letters B, 2020
Using effective field theory methods, we calculate for the first time the complete fourth-order term in the Fermi-momentum or kFas expansion for the ground-state energy of a dilute Fermi gas.
C. Wellenhofer, C. Drischler, A. Schwenk
doaj   +1 more source

Subsurface Characterisation Using the Electrical Resistivity Method: A Case Study of Itohan Girls Grammar School, Benin City, Nigeria [PDF]

open access: yes
To map the subsurface for borehole development, a 2D electrical resistivity inversion survey was conducted at Itohan Girls Grammar School, located on Sapele Road in Benin City.
Adebisi, Samuel Tobi   +3 more
core   +2 more sources

Enhancement of perovskite photoluminescence characterizations by using lithography-free metal nanostructures

open access: yesAIP Advances, 2020
To date, organic–inorganic metal halide perovskite material has become an emerging research topic for scientists to alternate the semiconductor material in the optoelectronic applications.
Rongpeng Fang, Yu-Sheng Lin
doaj   +1 more source

Mutual interference induced by single event effects in CMOS circuits

open access: yesAIP Advances, 2020
Single event effect (SEE) induced mutual interference in CMOS circuits, including single event (SE) induced coupling effects (crosstalk) and modulation in local supply voltage on power-supply rails, was studied based on the increase in metal interconnect
Lili Ding   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy