MSWord_examle - Magnetic Resonance in Solids
... In paper [7] CEF parameters of Yb3+ ion in KMgF3 crystal have been found (tab. 5). Using the least squares method the experimental values of g-factors (tab. 2) and experimental energy of whole 2F term levels have been taken into account. Obtained CEF parameters satisfy the experimental energy scheme ...
... In paper [7] CEF parameters of Yb3+ ion in KMgF3 crystal have been found (tab. 5). Using the least squares method the experimental values of g-factors (tab. 2) and experimental energy of whole 2F term levels have been taken into account. Obtained CEF parameters satisfy the experimental energy scheme ...
Heat Treating of Non Ferous Alloys
... Most heat treatments begin by heating an alloy beyond the upper transformation (A3) temperature. The alloy will usually be held at this temperature long enough for the heat to completely penetrate the alloy, thereby bringing it into a complete solid solution. Since a smaller grain size usually enhan ...
... Most heat treatments begin by heating an alloy beyond the upper transformation (A3) temperature. The alloy will usually be held at this temperature long enough for the heat to completely penetrate the alloy, thereby bringing it into a complete solid solution. Since a smaller grain size usually enhan ...
PSI Physics Electro-Magnetic Induction Multiple Choice Questions
... A. The induced current flows in a clockwise direction. B. The induced current flows in a counter-clockwise direction. C. The induced current flows first in a clockwise and then in a counterclockwise direction. D. The induced current flows first in a counter-clockwise and then in a clockwise directio ...
... A. The induced current flows in a clockwise direction. B. The induced current flows in a counter-clockwise direction. C. The induced current flows first in a clockwise and then in a counterclockwise direction. D. The induced current flows first in a counter-clockwise and then in a clockwise directio ...
Demagnetisation of Permanent Magnets in Electrical Machines
... described. Demagnetisation models and hazardous situations in PM machines are discussed. Finally, the instructions how to check the design against the risk of demagnetisation are discussed. ...
... described. Demagnetisation models and hazardous situations in PM machines are discussed. Finally, the instructions how to check the design against the risk of demagnetisation are discussed. ...
Acoustic Waves - The Evergreen State College
... The surface of the Sun is around 5800 Kelvin (K), yet between 103 and 104 km from the surface there is a dramatic spike in the temperature of the corona, to more than 1 million K. One source of this heating probably involves the transformation of acoustic waves to magnetic waves. Acoustic waves are ...
... The surface of the Sun is around 5800 Kelvin (K), yet between 103 and 104 km from the surface there is a dramatic spike in the temperature of the corona, to more than 1 million K. One source of this heating probably involves the transformation of acoustic waves to magnetic waves. Acoustic waves are ...
Linked and knotted beams of light, conservation of helicity and the
... structure can be built by first foliating space with tori of different sizes, enclosed inside each other like russian dolls; and subsequently breaking each torus up into a set of circles that wrap once around each circumference of the torus. Since each circle wraps once around each circumference of ...
... structure can be built by first foliating space with tori of different sizes, enclosed inside each other like russian dolls; and subsequently breaking each torus up into a set of circles that wrap once around each circumference of the torus. Since each circle wraps once around each circumference of ...
Addressing misconceptions about electric and magnetic fields: A
... The number of South African students who qualify for tertiary studies in the field of natural science, engineering and technology is much lower than what is currently needed for the country’s economy (Kriek and Grayson, 2009). Furthermore, scientific literacy amongst South African secondary school g ...
... The number of South African students who qualify for tertiary studies in the field of natural science, engineering and technology is much lower than what is currently needed for the country’s economy (Kriek and Grayson, 2009). Furthermore, scientific literacy amongst South African secondary school g ...
Nonlinear magnetic circuit analysis for a novel stator
... lower than the unsaturated one. It can also be seen that when the armature current acts to strengthen the field flux, magnetic saturation becomes more serious, resulting in lower inductance. Similarly, the back-EMF can be directly deduced from the 1 A, flux linkage. At the rated speed of 1500 rpm an ...
... lower than the unsaturated one. It can also be seen that when the armature current acts to strengthen the field flux, magnetic saturation becomes more serious, resulting in lower inductance. Similarly, the back-EMF can be directly deduced from the 1 A, flux linkage. At the rated speed of 1500 rpm an ...
Non-conservative electron transport in CF4 in electric and magnetic
... In this paper we present the first systematic treatment of non-conservative, spatially inhomogeneous electron swarms in electric and magnetic fields crossed at arbitrary angles for carbon tetrafluoride (CF4 ) using a Monte Carlo simulation technique. CF4 provides an example of a gas which has applic ...
... In this paper we present the first systematic treatment of non-conservative, spatially inhomogeneous electron swarms in electric and magnetic fields crossed at arbitrary angles for carbon tetrafluoride (CF4 ) using a Monte Carlo simulation technique. CF4 provides an example of a gas which has applic ...
Superconductivity
Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields occurring in certain materials when cooled below a characteristic critical temperature. It was discovered by Dutch physicist Heike Kamerlingh Onnes on April 8, 1911 in Leiden. Like ferromagnetism and atomic spectral lines, superconductivity is a quantum mechanical phenomenon. It is characterized by the Meissner effect, the complete ejection of magnetic field lines from the interior of the superconductor as it transitions into the superconducting state. The occurrence of the Meissner effect indicates that superconductivity cannot be understood simply as the idealization of perfect conductivity in classical physics.The electrical resistivity of a metallic conductor decreases gradually as temperature is lowered. In ordinary conductors, such as copper or silver, this decrease is limited by impurities and other defects. Even near absolute zero, a real sample of a normal conductor shows some resistance. In a superconductor, the resistance drops abruptly to zero when the material is cooled below its critical temperature. An electric current flowing through a loop of superconducting wire can persist indefinitely with no power source.In 1986, it was discovered that some cuprate-perovskite ceramic materials have a critical temperature above 90 K (−183 °C). Such a high transition temperature is theoretically impossible for a conventional superconductor, leading the materials to be termed high-temperature superconductors. Liquid nitrogen boils at 77 K, and superconduction at higher temperatures than this facilitates many experiments and applications that are less practical at lower temperatures.