MIT OpenCourseWare Electromechanical Dynamics
... compressibility are found in MHD systems which use ionized gases as working fluids. We have chosen a perfect gas as our model of a compressible fluid. Although alternative models can be used, the principal phenomena that we shall study also occur in systems for which other models are appropriate. It ...
... compressibility are found in MHD systems which use ionized gases as working fluids. We have chosen a perfect gas as our model of a compressible fluid. Although alternative models can be used, the principal phenomena that we shall study also occur in systems for which other models are appropriate. It ...
CLUSTER FORMATION IN CONTRACTING MOLECULAR CLOUDS
... We explore, through a simplified, semianalytic model, the formation of dense clusters containing massive stars. The parent cloud spawning the cluster is represented as an isothermal sphere. This sphere is in nearYforce balance between self-gravity and turbulent pressure. Self-gravity, mediated by tu ...
... We explore, through a simplified, semianalytic model, the formation of dense clusters containing massive stars. The parent cloud spawning the cluster is represented as an isothermal sphere. This sphere is in nearYforce balance between self-gravity and turbulent pressure. Self-gravity, mediated by tu ...
Diffusive Spin Dynamics in Ferromagnetic Thin Films with a Rashba
... The manipulation of spin degrees of freedom and spincharge conversion are at the core of the rapid developing field of spintronics [1]. A semiconductor-based twodimensional electron gas (2DEG) lacking inversion symmetry is known to electrically generate nonequilibrium spin density through the spin-o ...
... The manipulation of spin degrees of freedom and spincharge conversion are at the core of the rapid developing field of spintronics [1]. A semiconductor-based twodimensional electron gas (2DEG) lacking inversion symmetry is known to electrically generate nonequilibrium spin density through the spin-o ...
The low energy electronic band structure of bilayer graphene
... The imaginary part has a divergence at Ω = 1 and it is this (with the corresponding peak in the real part) which dominates the reflection properties. For comparison, the monolayer has ℜσ = e2 /4~ and ℑσ = 0 at T = 0. ...
... The imaginary part has a divergence at Ω = 1 and it is this (with the corresponding peak in the real part) which dominates the reflection properties. For comparison, the monolayer has ℜσ = e2 /4~ and ℑσ = 0 at T = 0. ...
Factors affecting the Cl atom density in a chlorine discharge
... ionization, molecular ionization, and attachment, respectively. The terms on the right-hand side (rhs) represent ionization of atomic chlorine, ionization of molecular chlorine, attachmentto molecular chlorine, and diffusion to the walls of the container, respectively.D, is an effective electron dif ...
... ionization, molecular ionization, and attachment, respectively. The terms on the right-hand side (rhs) represent ionization of atomic chlorine, ionization of molecular chlorine, attachmentto molecular chlorine, and diffusion to the walls of the container, respectively.D, is an effective electron dif ...
How can a 22-pole ion trap exhibit ten local minima
... processes [2, 11–13] of atomic and molecular ions. Highorder multipole traps offer a large field-free region in the trap centre, and therefore provide a reduced interaction time of the ions with the oscillating electric field compared to a quadrupole trap [14]. Buffer gas cooling down to cryogenic t ...
... processes [2, 11–13] of atomic and molecular ions. Highorder multipole traps offer a large field-free region in the trap centre, and therefore provide a reduced interaction time of the ions with the oscillating electric field compared to a quadrupole trap [14]. Buffer gas cooling down to cryogenic t ...
Chapter 5 - Erwin Sitompul
... The tangential component of the electric field intensity is seen to be zero Et = 0 Dt = 0. If not, then a force will be applied to the surface charges, resulting in their motion and thus it is no static conditions. The normal component of the electric flux density leaving the surface is equa ...
... The tangential component of the electric field intensity is seen to be zero Et = 0 Dt = 0. If not, then a force will be applied to the surface charges, resulting in their motion and thus it is no static conditions. The normal component of the electric flux density leaving the surface is equa ...
Metal-Ferroelectric-Metal structures with Schottky contacts: II
... very different ferroelectric properties. The shape of the loops is different from sample to sample. The polarization values are scattered over almost a decade. Typically, ferroelectric properties of epitaxial films are better than those of polycrystalline films. This can be also observed in our epit ...
... very different ferroelectric properties. The shape of the loops is different from sample to sample. The polarization values are scattered over almost a decade. Typically, ferroelectric properties of epitaxial films are better than those of polycrystalline films. This can be also observed in our epit ...
Hopping Conduction and Metallic behavior in 2D Silicon Surface
... than the maximum carrier density achievable with oxide dielectrics. The physical mechanism for inducing carriers to such a high carrier density is not well understood. Some groups have reported that the induced carriers are a result of electrostatic and electrochemical processes. Other groups have s ...
... than the maximum carrier density achievable with oxide dielectrics. The physical mechanism for inducing carriers to such a high carrier density is not well understood. Some groups have reported that the induced carriers are a result of electrostatic and electrochemical processes. Other groups have s ...
On the Bel radiative gravitational fields Joan Josep Ferrando aez
... radiative gravitational fields, and we show that these three different physical situations correspond to the three Bel radiative cases, namely, the Petrov-Bel types N, III and II, respectively. The asymptotic behavior of every radiative type is also analyzed. Section 6 is devoted to studying non rad ...
... radiative gravitational fields, and we show that these three different physical situations correspond to the three Bel radiative cases, namely, the Petrov-Bel types N, III and II, respectively. The asymptotic behavior of every radiative type is also analyzed. Section 6 is devoted to studying non rad ...
File
... How do we count atoms? • What do they need to know in order to do this? • How much a single coin weighs. • Chemists count atoms in the same way, but we need to know how much an atom weighs – this is it’s R.A.M. (Relative atomic mass) ...
... How do we count atoms? • What do they need to know in order to do this? • How much a single coin weighs. • Chemists count atoms in the same way, but we need to know how much an atom weighs – this is it’s R.A.M. (Relative atomic mass) ...
1. Theoretical studies of anomalous particle transport
... Once these experimental conditions are reached, one can deduce from the density profile peaking the ratio between Vturb and D as follows: Vturb/D = n / n = - Cq q/q + CT T/T In cases where the neoclassical Ware pinch is not zero, the analysis of experimental results may lead to contradictory conc ...
... Once these experimental conditions are reached, one can deduce from the density profile peaking the ratio between Vturb and D as follows: Vturb/D = n / n = - Cq q/q + CT T/T In cases where the neoclassical Ware pinch is not zero, the analysis of experimental results may lead to contradictory conc ...
Dahler and Sciven 1963
... From this principle we arrive a t the equation of change of internal angular momentum of continua, and thence the full set of conditions under which the usual hypothesis, that the material stress dyadic is symmetric (or that its tensor is, which is equivalent), is justified. I n § 3 we associate int ...
... From this principle we arrive a t the equation of change of internal angular momentum of continua, and thence the full set of conditions under which the usual hypothesis, that the material stress dyadic is symmetric (or that its tensor is, which is equivalent), is justified. I n § 3 we associate int ...
Washabaugh, A.P. and M. Zahn, A Chemical Reaction-based Boundary Condition for Flow Electrification, IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 4, No. 6, pp. 688-709, December, 1997
... of the charged species that leads to the generation of the electrical double layer and it is the diffuse charge in the double layer that is transported by the fluid to accumulate or leak away at a downstream location. Unfortunately, since the ions responsible for the conduction in the liquid are usu ...
... of the charged species that leads to the generation of the electrical double layer and it is the diffuse charge in the double layer that is transported by the fluid to accumulate or leak away at a downstream location. Unfortunately, since the ions responsible for the conduction in the liquid are usu ...
Electric dipoles and phase stability in nematic liquid crystals
... is in general sensitive to a number of molecular factors, aside from the magnitude of the dipole moment, and therefore such factors should not be restricted or distorted in order to comply with the statistical mechanical approximation employed (as is the case, for example, with lattice models [21] o ...
... is in general sensitive to a number of molecular factors, aside from the magnitude of the dipole moment, and therefore such factors should not be restricted or distorted in order to comply with the statistical mechanical approximation employed (as is the case, for example, with lattice models [21] o ...
Numerical Investigation of the Plasma Formation in Distilled Water
... each molecule is independently ionized by the electric field, without the need of particle-particle interaction or seed electrons. This breakdown is thus independent of impurities in the medium and can be applied consistently to a variety of tissues. Moreover, the breakdown phenomenon is found to be ...
... each molecule is independently ionized by the electric field, without the need of particle-particle interaction or seed electrons. This breakdown is thus independent of impurities in the medium and can be applied consistently to a variety of tissues. Moreover, the breakdown phenomenon is found to be ...
Equatorially trapped plasmas and parallel electric fields
... associated with field-aligned measurements. The satellite is flying almost tangential to the magnetic field line. Hence, the data taken along the satellite velocity vector (ram, or 0° spin phase) corresponds to ~0° pitch angle. The hydrogen and helium ion data show the characteristic trapped distrib ...
... associated with field-aligned measurements. The satellite is flying almost tangential to the magnetic field line. Hence, the data taken along the satellite velocity vector (ram, or 0° spin phase) corresponds to ~0° pitch angle. The hydrogen and helium ion data show the characteristic trapped distrib ...
Atoms in Molecules
... Quantum Mechanics of an Atom in a Molecule The Lewis Model as Displayed in the Laplacian of the Electron Density 5 Summary 6 Related Articles 7 References ...
... Quantum Mechanics of an Atom in a Molecule The Lewis Model as Displayed in the Laplacian of the Electron Density 5 Summary 6 Related Articles 7 References ...
Three-dimensional electromagnetic breathers in carbon
... potentials A and /. Therefore, it might be assumed that the change of the vector potential by adding a scalar constant (which is classically known not to lead to any physical consequence) causes a change in the current density. However, in reality, this does not happen, because while deriving Eq. (3 ...
... potentials A and /. Therefore, it might be assumed that the change of the vector potential by adding a scalar constant (which is classically known not to lead to any physical consequence) causes a change in the current density. However, in reality, this does not happen, because while deriving Eq. (3 ...
Density dependence of excess electronic ground
... be fit to give reliable agreement with simulations using more accurate pseudopotentials. Coker and Berne7 explored the onset of photoconducting states of electrons equilibrated in fluid helium and tested a simple WignerSeitz-like model.* This simple model theory has been used by Plenkiewicz, Plenkie ...
... be fit to give reliable agreement with simulations using more accurate pseudopotentials. Coker and Berne7 explored the onset of photoconducting states of electrons equilibrated in fluid helium and tested a simple WignerSeitz-like model.* This simple model theory has been used by Plenkiewicz, Plenkie ...
On the consequences of bi-Maxwellian distributions on parallel electric fields.
... profiles are in agreement with some observations. The electric fields that result are on the order of 0.1 uV/m pointing away from the magnetic equator with greater anisotropy leading to larger electric field strength. Density minimums have also been observed at the magnetic equator. This ...
... profiles are in agreement with some observations. The electric fields that result are on the order of 0.1 uV/m pointing away from the magnetic equator with greater anisotropy leading to larger electric field strength. Density minimums have also been observed at the magnetic equator. This ...
Electrically Charged Neutron Stars - if
... bound system whose size is smaller than the Debye length of the surrounding media. The conclusion is that a star formed by an initially neutral gas cannot acquire a net electric charge larger than about 100C per solar mass. In fact, one should expect a star like the sun to hold some amount of net c ...
... bound system whose size is smaller than the Debye length of the surrounding media. The conclusion is that a star formed by an initially neutral gas cannot acquire a net electric charge larger than about 100C per solar mass. In fact, one should expect a star like the sun to hold some amount of net c ...
Three-dimensional head model simulation of transcranial magnetic
... information; however, current technical limitations preclude the complete characterization of the electromagnetic field distributions via this type of experimentation and necessitate the development of theoretical studies. Numerous theoretical models have been developed to provide scientists and phy ...
... information; however, current technical limitations preclude the complete characterization of the electromagnetic field distributions via this type of experimentation and necessitate the development of theoretical studies. Numerous theoretical models have been developed to provide scientists and phy ...
Femtosecond quantum fluid dynamics of helium atom under an
... number of equations to only one and in the spatial dimensionality from 3 N to 3. This advantage is partly offset by the disadvantage of having to solve a TD highly nonlinear integrodifferential equation of motion ŽEOM. for the quantum fluid. We wish to see whether the present method generates all th ...
... number of equations to only one and in the spatial dimensionality from 3 N to 3. This advantage is partly offset by the disadvantage of having to solve a TD highly nonlinear integrodifferential equation of motion ŽEOM. for the quantum fluid. We wish to see whether the present method generates all th ...
Infrared Photoconductivity in Thin Silver Sulfide Films
... a sample is uniformly illuminated with light which generates photo-electrons at a constant rate (F electrons/cm3-s) within the volume, then n , the density of photo electrons in the conduction band under steady state conditions is ...
... a sample is uniformly illuminated with light which generates photo-electrons at a constant rate (F electrons/cm3-s) within the volume, then n , the density of photo electrons in the conduction band under steady state conditions is ...