The Institute of Physics ( IOP ) по журналам "Physica Scripta"
Отображаемые элементы 120 из 128

(19880501)Bismuth, the heaviest group V semimetal, exhibit strong spinorbit coupling effects. In the framework of the density functional formalism, we present here an ab initio calculation of the Bismuth band structure, using nonlocal ...

(19820301)We show the existence of a new instability mechanism of a currentcarrying plasma, which, for a sufficiently long system, may occur after saturation of the twostream instability. The instability is due to combined asymmetry ...

(19931001)This paper deals with the correlation of substantive acceleration fluctuations in a stationary homogeneous turbulence which is invariant under translations and rotations but lacks reflectional symmetry. Appropriate invariant ...

(19960201)The XUV spectra from laserproduced germanium plasma are investigated. The energy levels of the 2s22p53l and 2s2p63l states with l = 0, 1, 2 and the oscillator strengths for the transitions between these levels are calculated ...

(19891101)An investigation has been done of a shortlived neutral decay from a muonneutrino event in emulsion. Various hypotheses are considered and it is deduced that the most probable explanation involves the production and decay, ...

(19940101)Compared to wire bonding and TAB, flip chip technology using solder joints offers the highest pin count and packaging density and superior electrical performance. The chips are mounted upside down on the substrate, which ...

(19950101)Alfvén waves in fusion plasmas play an important role in a number of situations. First, in Alfvén Wave Heating (AWH) schemes. Second, both theory and experiment have demonstrated the existence of Global Alfvén Eigenmodes ...

(19930101)In this paper, we investigate some properties of the ZakharovKuznetsov equation (which describes nonlinear ionacoustic waves in a magnetized plasma), including modulational stability of perturbations aligned with the ...

(19750501)A numerical approach is used to study the temporal development of the excitation levels of ionsound waves and the associated reflexion and transmission properties, when laser radiation falls onto a plasma. The problem is ...

(19700901)The velocity pattern of an axially symmetric, electrically conducting, magnetized fluid can be controlled by means of a system of currentcarrying electrodes which guide the fluid motion as prescribed by the isorotation ...

(19860401)Large amplitude plasma waves which can be created by beating two intense laser beams are applicable e.g., to particle acceleration, to induction of plasma currents, and to plasma heating. A central issue in these applications ...

(19950201)We present two different approaches to evaluate the nonlocal square root operator that usually appears in the relativistic equation. We also introduce a new strategy to solve coupled equation systems such as Dirac coupled ...

(19920701)Beamfoil spectra have been searched for transitions in Xe V suggested by comparison with the structure of I IV and Cs VI, and by an MCHF calculation. Twentynine lines are assigned to transitions between 22 levels of the ...

(19930101)The Goddard High Resolution Spectrograph (GHRS) aboard the Hubble Space Telescope (HST) is a powerful facility for studying the composition and physical conditions of the interstellar medium. In this paper the diagnostic ...

(19950101)We give a brief introduction to the study of parity nonconserving effects in atoms. We describe the optical rotation experiments carried out in Oxford, and summarize recent results for bismuth and work in progress on samarium.

(19920101)A highly insulating CaF2 surface was investigated by Auger electron spectroscopy (AES) and electron energy loss spectroscopy (EELS). Reduction of primary electron current could suppress the surface deterioration during ...

(19940501)Spectra of highlyionized silicon, aluminium, sulfur and argon ions produced by the beamfoil technique have been analysed in the 540 nm wavelength range. Numerous transitions belonging to n = 34, 45 and 35 transitions ...

(19720701)An investigation of the doublyexcited quartet levels in Be II and the displaced term system of Be I is described. Beamfoil spectra of beryllium (5001 600 Å, 2 0006 000 Å) showed several transitions which were assigned ...

(19870101)The important role that fieldaligned Birkeland currents play in solar terrestrial coupling processes has been known from satellite observations for twenty years. Many satellites have been launched since the last ...

(19860601)The general properties of a class of nonlinear Schroedinger equations: iut + p:u + f(u2)u = 0 are reviewed. Conditions for existence, uniqueness, and stability of solitary wave solutions are presented, along with conditions ...
Отображаемые элементы 120 из 128