نتایج جستجو برای: magnetic sources

تعداد نتایج: 621492  

Journal: :فیزیک زمین و فضا 0
کمال علمدار دانشجوی دکتری اکتشاف معدن، دانشکده معدن، نفت و ژئوفیزیک، دانشگاه صنعتی شاهرود، ایران ابوالقاسم کامکار روحانی دانشیار، دانشکده معدن، نفت و ژئوفیزیک، دانشگاه صنعتی شاهرود، ایران عبدالحمید انصاری دانشیار، دانشکده مهندسی معدن و متالورژی، دانشگاه یزد، ایران

a variety of semiautomatic methods, based on the use of derivatives of the magnetic anomalies, have been developed for the determination of both of the causative source parameters such as locations of boundaries and depths. one of these techniques is the method of the analytic signal for magnetic anomalies, which was initially used in its complex function form and makes use of the properties of...

2009
Mehmet Şimşir Nedim Tutkun

Renewable energy sources such as wind, solar, geothermal and tides have increasingly been used to generate electricity. Among these energy sources wind power has gained enormous attention in many parts of the world where no fossil fuels exist and energy requirements are highly demanded. The efficiency of wind power mainly depends on wind produced and a generator converting wind power to electri...

2015
Guy Lipworth Joshua Ensworth Kushal Seetharam Jae Seung Lee Paul Schmalenberg Tsuyoshi Nomura Matthew S. Reynolds David R. Smith Yaroslav Urzhumov

The control of quasi-static magnetic fields is of considerable interest in applications including the reduction of electromagnetic interference (EMI), wireless power transfer (WPT), and magnetic resonance imaging (MRI). The shielding of static or quasi-static magnetic fields is typically accomplished through the use of inherently magnetic materials with large magnetic permeability, such as ferr...

2007
Andrew L. Haynes Clare E. Parnell Klaus Galsgaard Eric R. Priest

The heating of the solar corona is likely to be due to reconnection of the highly complex magnetic field that threads throughout its volume. We have run a numerical experiment of an elementary interaction between the magnetic field of two photospheric sources in an overlying field that represents a fundamental building block of the coronal heating process. The key to explaining where, how and h...

2005
Vincent L. Fish Mark J. Reid Karl M. Menten

We have observed six high-mass star-forming regions in the Π3/2, J = 7/2 lines of OH using the GBT in order to investigate whether the magnetic field, and hence the density, measured in absorption differs from that implied by maser Zeeman splitting. We detect absorption in both the 13441 and 13434 MHz main lines in all six sources. Zeeman splitting in the F = 3 → 3 absorption line in W3(OH) imp...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید