velocity of decameter electrojet irregularities under strongly driven
... heights of ~ 800 km, but these measurements can be projected onto E-region heights at high latitudes. By comparing the radar and satellite data in one direction, we show that irregularity velocity is smaller than the plasma drift by a factor of 2 – 3 with the stronger difference at faster flows. Thi ...
... heights of ~ 800 km, but these measurements can be projected onto E-region heights at high latitudes. By comparing the radar and satellite data in one direction, we show that irregularity velocity is smaller than the plasma drift by a factor of 2 – 3 with the stronger difference at faster flows. Thi ...
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Electricity and Magnetism - U
... graphite, which has a layered structure on an atomic scale. For another example, see Problem 4.5. In such cases J may not have the direction of E. But there still are linear relations between the components of J and the components of E, relations expressed by Eq. (4.11) with σ a tensor quantity inst ...
... graphite, which has a layered structure on an atomic scale. For another example, see Problem 4.5. In such cases J may not have the direction of E. But there still are linear relations between the components of J and the components of E, relations expressed by Eq. (4.11) with σ a tensor quantity inst ...
Optics and Fluid Dynamics Department annual progress report for 1998
... The research programme on Optical Materials comprises three main areas of research: polymer optics, lasers and nonlinear optics. The last of these research areas is intimately linked with the graduate school in Nonlinear Science, which is a collaborative effort between the Technical University of De ...
... The research programme on Optical Materials comprises three main areas of research: polymer optics, lasers and nonlinear optics. The last of these research areas is intimately linked with the graduate school in Nonlinear Science, which is a collaborative effort between the Technical University of De ...
Determination of the Proton`s Weak Charge via Parity
... and the late Dr. Mike Finn. Without the latter I would not have gotten into the field of experimental particle physics. He was a mentor and friend who is dearly missed by many; myself included. I would also like to thank David Armstrong for taking up the mantle of advising me and seeing me through t ...
... and the late Dr. Mike Finn. Without the latter I would not have gotten into the field of experimental particle physics. He was a mentor and friend who is dearly missed by many; myself included. I would also like to thank David Armstrong for taking up the mantle of advising me and seeing me through t ...
Terahertz Electromagnetic Waves Properties and
... off from the pump laser pulses probe the antenna. The time delay from pump and probe pulses are measured, as well as the chance in DC current form the antenna to determine the THz waveform [12]. The common structure is shown in figure 6. It is shown with a GaAs substrate, but other semiconductors su ...
... off from the pump laser pulses probe the antenna. The time delay from pump and probe pulses are measured, as well as the chance in DC current form the antenna to determine the THz waveform [12]. The common structure is shown in figure 6. It is shown with a GaAs substrate, but other semiconductors su ...
Damping Ring Lecture I - International Linear Collider
... In order to achieve the desired luminosity, an average collision rate of ~14kHz is required (we will return to this parameter shortly). The beam sizes at the IP are determined by the strength of the final focus magnets and the emittance, phase space volume, of the incoming bunches. A number of issue ...
... In order to achieve the desired luminosity, an average collision rate of ~14kHz is required (we will return to this parameter shortly). The beam sizes at the IP are determined by the strength of the final focus magnets and the emittance, phase space volume, of the incoming bunches. A number of issue ...
Design, Implementation and Control of a Magnetic Levitation Device
... model of the magnetic force experienced by the levitated object is obtained. The dynamic magnetic force model is determined experimentally using frequency response system identification. The response of the system components including the power amplifiers, and position measurement system are also co ...
... model of the magnetic force experienced by the levitated object is obtained. The dynamic magnetic force model is determined experimentally using frequency response system identification. The response of the system components including the power amplifiers, and position measurement system are also co ...
pdf
... were great role models both inside and outside of lab. They helped Aaron and me get our first apartment at 4 Marion (right below theirs). My discussions with Ananth (which invariably ended with him telling me I was crazy) were a constant source of amusement. Deep’s level-headiness when those around ...
... were great role models both inside and outside of lab. They helped Aaron and me get our first apartment at 4 Marion (right below theirs). My discussions with Ananth (which invariably ended with him telling me I was crazy) were a constant source of amusement. Deep’s level-headiness when those around ...
ABSTRACT Dynamics of Bose-Einstein Condensation in 7Li by
... Bose-Einstein condensation (BEC) of 7 Li has been investigated. Because the effective interaction between 7 Li atoms is attractive, the condensate occupation number N0 is limited to ∼1250 atoms, and when this limit is exceeded, the condensate becomes unstable with respect to mechanical collapse. The ...
... Bose-Einstein condensation (BEC) of 7 Li has been investigated. Because the effective interaction between 7 Li atoms is attractive, the condensate occupation number N0 is limited to ∼1250 atoms, and when this limit is exceeded, the condensate becomes unstable with respect to mechanical collapse. The ...
Dynamics and Transport of Laser
... ated electron beams. Most commonly used tracking codes applied here and in the field of conventional particle acceleration are found to exhibit substantial deficits in the applied models for treating space charge in the regime of laser acceleration. The ensuing artifacts stem from common approximati ...
... ated electron beams. Most commonly used tracking codes applied here and in the field of conventional particle acceleration are found to exhibit substantial deficits in the applied models for treating space charge in the regime of laser acceleration. The ensuing artifacts stem from common approximati ...
Simulations of Magnetic Reversal Properties in Granular Recording
... is required to overcome the super-paramagnetic limit. By using a high anisotropy material, such as L10 FePt, and heat assisted magnetic recording the areal density can be taken well beyond 1 Tbit/in2 . For FePt the grains on which the data is stored can be reduced to 3nm in size before thermal noise ...
... is required to overcome the super-paramagnetic limit. By using a high anisotropy material, such as L10 FePt, and heat assisted magnetic recording the areal density can be taken well beyond 1 Tbit/in2 . For FePt the grains on which the data is stored can be reduced to 3nm in size before thermal noise ...
Ion Distribution in the Foreshock
... always present and its distance from the Earth’s center at the subsolar point is ∼ 15Re (where Re is the Earth radius; 1Re = 6370km). This distance can be relatively easily reached by spacecraft orbiting around the Earth. Therefore we can accumulate enough data about the plasma and the electromagnet ...
... always present and its distance from the Earth’s center at the subsolar point is ∼ 15Re (where Re is the Earth radius; 1Re = 6370km). This distance can be relatively easily reached by spacecraft orbiting around the Earth. Therefore we can accumulate enough data about the plasma and the electromagnet ...
Time in physics
Time in physics is defined by its measurement: time is what a clock reads. In classical, non-relativistic physics it is a scalar quantity and, like length, mass, and charge, is usually described as a fundamental quantity. Time can be combined mathematically with other physical quantities to derive other concepts such as motion, kinetic energy and time-dependent fields. Timekeeping is a complex of technological and scientific issues, and part of the foundation of recordkeeping.