Results 41 to 50 of about 11,826,453 (193)
Determining Vulnerability of the Rozeh Chay Aquifer in the Urmia Plain, Using the Combination Method of DRASTIC, SINSTAC and SI Indexes [PDF]
پژوهشهای آبخیزداری, 2020 The Rozeh Chay Plain is located on the western margin of the Urmia Lake. The shallow groundwater table, agricultural activities, and particularly the use of fertilizers and pesticides may lead to the groundwater contamination.
Ramin Mosazade +2 more
doaj +1 more source
Integration of GIS and remote sensing for evaluating forest canopy density index in Kunar Province, Afghanistan [PDF]
GeoreviewForests are an essential component of the natural environment and are essential to the advancement of sustainable development. But each year, natural forests are being destroyed by human endeavors.
Bilal Jan HAJI MUHAMMAD +2 more
doaj +1 more source
Heat transport and spin-charge separation in the normal state of high temperature superconductors
, 2000 Hill et al. have recently measured both the thermal and charge conductivities in the normal state of a high temperature superconductor. Based on the vanishing of the Wiedemann-Franz ratio in the extrapolated zero temperature limit, they conclude that the
Anderson +10 more
core +1 more source
Destruction of the Kondo effect in a multi-channel Bose-Fermi Kondo model
, 2004 We consider the SU(N) x SU(kappa N) generalization of the spin-isotropic Bose-Fermi Kondo model in the limit of large N. There are three fixed points corresponding to a multi-channel non-Fermi liquid phase, a local spin-liquid phase, and a Kondo ...
Lijun Zhu +7 more
core +1 more source
physica status solidi (a), Volume 216, Issue 23, December 2019., 2019 Growth of transition metal oxides on oxidized silicon substrates opens the possibility for new device structures. Reactive sputtering of the oxide deteriorates the Si/SiO2 surface passivation. Decoupling the oxidation step from the sputter deposition of the metal can alleviate this difficulty and results in superior Si/SiO2/TMO junctions.
Raphaël Poulain +2 more
wiley +1 more source
Spin Dynamics in the Normal State of High T_c Superconductors
, 1993 We summarize our recent theoretical studies on the spin dynamics in the normal state of the metallic cuprates. The contrasting wave vector dependence of the dynamical spin structure factor $S({\bf q}, \omega )$ in LaSrCuO and YBaCuO systems are ...
Si, Qimiao
core +2 more sources
High Voltage, Volume 4, Issue 2, Page 122-129, June 2019., 2019 Mechanical circuit breakers (MCBs) are the limiting component for current injection HVDC circuit breakers. Improving their interruption performance reduces requirements for capacitance and inductance needed in the injection circuit and thus space use and costs.
Tim Schultz +3 more
wiley +1 more source
Fermi Surface and Magnetism in the Kondo lattice: A Continuum Field Theory Approach
, 2007 We consider the Fermi surface inside the antiferromagnetic ordered region of a Kondo lattice system in an arbitrary dimension higher than one. We establish the existence of ${\rm AF_S}$, an antiferromagnetic phase whose Fermi surface is ``small,'' in the
Chakravarty +11 more
core +1 more source
Evaluating suitable semiconducting materials for cryogenic power electronics
The Journal of Engineering, Volume 2019, Issue 17, Page 4475-4479, June 2019., 2019 The interest in hybrid electric aircraft has invigorated research into superconducting power networks and superconducting electrical machines. Underpinning this is the ability to control the flow of electrical current at cryogenic temperatures, using power electronic devices.
Luke Bradley +3 more
wiley +1 more source
Revista Argentina de Antropología Biológica, 2019 Se analiza el origen continental de los haplogrupos del cromosoma Y en poblaciones de Santiago del Estero y San Miguel de Tucumán con el fin de ampliar el mapa filogeográfico de los linajes paternos argentinos.
Marisol Elisabet Schwab +8 more
doaj +1 more source