نتایج جستجو برای: magnetic anomaly

تعداد نتایج: 375275  

Journal: :Physical review letters 2011
Karl Landsteiner Eugenio Megías Francisco Pena-Benitez

Quantum anomalies give rise to new transport phenomena. In particular, a magnetic field can induce an anomalous current via the chiral magnetic effect and a vortex in the relativistic fluid can also induce a current via the chiral vortical effect. The related transport coefficients can be calculated via Kubo formulas. We evaluate the Kubo formula for the anomalous vortical conductivity at weak ...

2006
R. K. Kremer

We have investigated the high field magnetisation of the frustrated one dimensional compound LiCuVO4. In zero field, LiCuVO4 undergoes long range antiferromagnetic order at TN ≈ 2.5 K with a broad short range Schottky type anomaly due to one dimensional correlations in the specific heat at 32 K. Application of a magnetic field induces a rich phase diagram. An anomaly in the derivative of the ma...

2016
Liming Fan Chong Kang Xiaojun Zhang Quan Zheng Ming Wang

The position of a magnetic target can be obtained through magnetic anomaly which is measured by a magnetic sensor. Comparing with vector magnetic sensor, the measurement value of the scalar magnetic sensor is almost not influenced by its orientation in measurement coordinate axes. Therefore, scalar magnetic sensors can be easily assembled into an array. Based on analysis of the total scalar mag...

2013
André Michaud

It can be shown that the difference between the experimental value of the electron magnetic moment and that of the Bohr magneton is due to the magnetic drift of the electron's carrying energy induced at the hydrogen ground state gyroradius, corresponding to the electron being forced to move on a closed orbit about the nucleus in an isolated hydrogen atom.

2008
Ignatios Antoniadis Alexey Boyarsky Oleg Ruchayskiy

We consider a modification of electrodynamics by an additional light massive vector field, interacting with the photon via Chern-Simons-like coupling. This theory predicts observable effects for the experiments studying the propagation of light in an external magnetic field, very similar to those, predicted by theories of axion and axion-like particles. We discuss a possible microscopic origin ...

This study deals with the 3D recovering of magnetic susceptibility model by incorporating the sparsity-based constraints in the inversion algorithm. For this purpose, the area under prospect was divided into a large number of rectangular prisms in a mesh with unknown susceptibilities. Tikhonov cost functions with two sparsity functions were used to recover the smooth parts as well as the sharp ...

Journal: :Collegium antropologicum 2011
Helena Sarac Srdana Telarović Jasenka Markeljević Berislav Perić Goran Pavlisa Marko Rados

Various combinations of vascular malformations of the brain in one lesion have been reported, while others seem to be very rare. In this report, the authors discuss the case of a coexistence of an capillary telangiectasia of the pons and intracerebral venous anomaly. To our knowledge, this is the first report of coexistence of a capillary telangiectasia of the pons and intracerebral venous anom...

Journal: :journal of mining and environment 2014
maysam abedi kiomars mosazadeh hamid dehghani ahmad madanchizare

we have applied an automatic interpretation method of potential data called an-eul in unexploded ordnance (uxo) prospective which is indeed a combination of the analytic signal and the euler deconvolution approaches. the method can be applied for both magnetic and gravity data as well for gradient surveys based upon the concept of the structural index (si) of a potential anomaly which is relate...

2010
ristofer Davis Yaoguo Li Misac Nabighian

We have developed an algorithm for the automatic detection of prospective unexploded ordnance UXO anomalies in total-field or gradient magnetic data based on the concept of the structural index SI of a magnetic anomaly. Identifying magnetic anomalies having specific structural indices enables the direct detection of potential UXO targets. The total magnetic field produced by a dipolelike source...

2010
M-E.Y. Mohie-Eldin Francis Bitter

Mossbauer studies of the ubiquitous protein molecule ferritin and its synthetic "biomimic" polysaccharide iron complex (pIC) exhibit an anomaly in the Mossbauer spectrum wherein the recoil free fraction orf-factor has a sharp drop with respect to temperature as the temperature rises above 30 K for mammalian ferritin and 60 K for PIC. The anomaly coincides with the disappearance ofhyperfme split...

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