نتایج جستجو برای: d resistivity models as a resistive dome

تعداد نتایج: 14241826  

2009
Yuanzhong Fan Roel Snieder Johannes Singer

Controlled Source Electromagnetic (CSEM) is an important technique in hydrocarbon exploration because it uses the large contrast in electrical resistivity to distinguish between water and hydrocarbons. In a shallow sea environment, the airwave that is refracted from the air-water interface dominates the recorded signal at large offsets. Therefore, the hydrocarbon detection ability of the CSEM i...

Journal: :Journal of physics. Condensed matter : an Institute of Physics journal 2008
Q Y Dong J Chen H W Zhang J R Sun B G Shen

Electrical resistivity, dc magnetization, ac magnetic susceptibility, and magnetic relaxation studies of polycrystalline Pr(0.2)La(0.8)Fe(11.4)Al(1.6) compound have been carried out. On the basis of the measurements of isofield magnetization and ac magnetic susceptibility, we provide evidence for phase coexistence (the appearance of the ferromagnetic phase in the antiferromagnetic matrix) rathe...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1389

the current study examined iranian undergraduate efl students’ willingness to communicate with regard to their vocabulary knowledge. in general, participants were somewhat willing to communicate in english. the total mean score of 730 university students’ perception of willing to communicate was 83.53 out of 135. results, regarding four parts of willingness to communicate, revealed that part...

2004
G. Carboni G. Collazuol S. de Capua D. Domenici R. Messi G. Passaleva E. Santovetti M. Veltri

We present the final results of an extensive aging test, performed at the CERN Gamma Irradiation Facility on two bakelite Resistive Plate Chambers (RPC) detectors. With a method based on a model describing the behaviour of an RPC under high particle flux conditions, we have periodically measured the electrode resistivity r of the two RPC prototypes over 3 years. We observed a large spontaneous ...

Journal: :AIP Advances 2021

Based on the three-dimensional compressible resistive MHD models, Earth’s dipole magnetic field is employed to investigate IMF By penetration driven by solar wind during southward interplanetary (IMF) with uniform resistivity. It found that built up in central plasma sheet of magnetotail. When θ = 30° (where BIMFy BIMF sin θ), strongest and even larger than initial imposed BIMFy. In addition, p...

Journal: :Physical review letters 2015
X Vaisseau A Debayle J J Honrubia S Hulin A Morace Ph Nicolaï H Sawada B Vauzour D Batani F N Beg J R Davies R Fedosejevs R J Gray G E Kemp S Kerr K Li A Link P McKenna H S McLean M Mo P K Patel J Park J Peebles Y J Rhee A Sorokovikova V T Tikhonchuk L Volpe M Wei J J Santos

Energy loss in the transport of a beam of relativistic electrons in warm dense aluminum is measured in the regime of ultrahigh electron beam current density over 2×10^{11}  A/cm^{2} (time averaged). The samples are heated by shock compression. Comparing to undriven cold solid targets, the roles of the different initial resistivity and of the transient resistivity (upon target heating during ele...

2012
X. Yu M. Araghchini F. Herrault J. K. Kim J. H. Lang M. G. Allen

This paper presents the fabrication, modeling, characterization and analysis of silicon-embedded, aircore, three-dimensional toroidal inductors for power converter applications. The inductors are fabricated within deep silicon recesses by means of a 3-D silicon shadow mask coupled with electroplating techniques. The losses in the inductor and the surrounding silicon are analytically modeled usi...

1997
W Jiang

Current-driven vortex dynamics of type-II superconductors in the weak-pinning limit is investigated by quantitatively studying the current-dependent vortex dissipation of an untwinned YBa2Cu3O7 single crystal. For applied current densities (J ) substantially larger than the critical current density (Jc), non-linear resistive peaks appear below the thermodynamic firstorder vortex-lattice melting...

Journal: :Geoscience Letters 2021

Abstract An electrical resistivity survey was carried out using the pole–pole configuration around Sayanokami spring area in northern part of Ito Campus (Kyushu University, Fukuoka, Japan) to study groundwater aquifer and its characteristics. A Code Division Multiple Transmission (CDMT) system used. The CDMT transmits 24 currents simultaneously measures potential responses with monitoring actua...

2009
C. E. Parnell A. L. Haynes

The importance of magnetic reconnection as an energy release mechanism in many solar, stellar, magnetospheric and astrophysical phenomena has long been recognised. Reconnection is the only mechanism by which magnetic fields can globally restructure, enabling them to access a lower energy state. Over the past decade, there have been some major advances in our understanding of threedimensional re...

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