نتایج جستجو برای: magnetic anomaly
تعداد نتایج: 375275 فیلتر نتایج به سال:
Reiner Gamma is a prime target for low-orbiting spacecraft or even surface-landed missions in the near future. The region hosts prominent lunar swirl that co-located with strong and well-structured magnetic anomaly. We simulate discuss Gamma's near-surface plasma environment at different altitudes above surface using fully kinetic particle-in-cell code iPIC3D. input field model based on orbital...
Keybarkuh area is located about 70 Km southeast of Khaf city in Khorassan Razavi Province. The study area, with 60 km2, is bounded to the east by Zouzan (Ghasemabad) and to the west by Keybarkuh. Rock units mapped in the area consist of sandstone, shale, limestone (Carboniferous to Paleocene); slate, mica schist (Paleozoic) and a complex of intrusive rock (Cretaceous to Tertiary) formed as dyke...
In this study we chronicle the development of the Australian-Antarctic discordance (AAD), the crenelated portion of the Southeast Indian Ridge between -120 ø and 128øE, since anomaly 6y time (19 Ma). We reconstruct satellite-derived marine gravity fields and depth anomalies at selected times by first removing anomalies overlying seafloor younger than the selected age, and then rotating the rema...
Within the fluid iron cores of terrestrial planets, convection and the resulting generation of global magnetic fields are controlled by the overlying rocky mantle. The thermal structure of the lower mantle determines how much heat is allowed to escape the core. Hot lower mantle features, such as the thermal footprint of a giant impact or hot mantle plumes, will locally reduce the heat flux thro...
In this paper, we study gapless fermionic and bosonic systems in $d$-dimensional continuum space with $U(1)$ particle-number-conservation ${\mathbb{R}}^{d}$ translation symmetry. We present low-energy effective field theories for several phases the $U(1)\ifmmode\times\else\texttimes\fi{}{\mathbb{R}}^{d}$ The symmetry has a property that twist will induce nonzero momentum proportional to charge ...
The effect of the thermospheric vertical neutral wind on vertical total electron content (vTEC) variations including longitudinal anomaly, remaining winter anomaly, mid-latitude summer night anomaly, and semiannual anomaly is studied at mid-latitude regions around zero magnetic declination at midnight during high solar activity. By using the principal component analysis (PCA) numerical techniqu...
Transport and magnetic properties near a field-induced orientation phase transition sOPTd from the easy to the hard axis in the magnetization of antiferromagnetically coupled epitaxial fFe/Crs100dg10 multilayers have been studied. It was found that in the vicinity of the OPT both the amplitude of the magnetic susceptibility anomaly and the relaxation rate of the magnetoresistance change dramati...
We found anomalies in the temperature dependence of the dielectric and the magnetic susceptibility of NaV 2 O 5 in the microwave and far infrared frequency ranges. The anomalies occur at the phase transition temperature T c , at which the spin gap opens. The real parts of the dielectric constants ǫ a and ǫ c decrease below T c. The decrease of ǫ a (except for the narrow region close to T c) is ...
Intracranial aneurysm in paediatric age group is rare and association of the aneurysm with congenital vertebral artery anomaly is further rarer. We describe such a case in an 11-year-old male patient who consulted a paediatrician about headache and vertigo, and a noncontrast CT (NCCT) head revealed peripherally calcified hyperdense mass in prepontine and basal cisterns. Magnetic resonance imagi...
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