Multichannel spectroscopy guide

System makes use of diverging duct walls for conducting the light from entrance slips to the conductors by means of multiple reflectors. This system simultaneously records, photoelectrically, the intensities of several closely spaceed narrow wavelengths in the ultraviolet and infrared areas of the spectrum

The wind-sock theory of comet tails

A method is reported for calculating the shapes of ionic comet tails that use the magnetic field along the tail to channel the tail plasma. The local momentum field in the solar wind determines magnetic field line locations along the tail. Thus, the magnetic field acts as a transparent wind sock in trapping field lines in the cometary plasma around the nucleus long enough to be effectively fastened to the comet's head

The Shield that Never Was: Societies with Single-Peaked Preferences are More Open to Manipulation and Control

Much work has been devoted, during the past twenty years, to using complexity to protect elections from manipulation and control. Many results have been obtained showing NP-hardness shields, and recently there has been much focus on whether such worst-case hardness protections can be bypassed by frequently correct heuristics or by approximations. This paper takes a very different approach: We argue that when electorates follow the canonical political science model of societal preferences the complexity shield never existed in the first place. In particular, we show that for electorates having single-peaked preferences, many existing NP-hardness results on manipulation and control evaporate.Comment: 38 pages, 2 figure

Long life electrodes for large-area x-ray generators

This invention is directed to rugged, reliable, and long-life electrodes for use in large-area, high-current-density electron gun and x-ray generators which are employed as contamination-free preionizers for high-energy pulsed gas lasers. The electron source at the cathode is a corona plasma formed at the interface between a conductor, or semiconductor, and a high-permittivity dielectric. Detailed descriptions are provided of a reliable cold plasma cathode, as well as an efficient liquid-cooled electron beam target (anode) and x-ray generator which concentrates the x-ray flux in the direction of an x-ray window

Integrated prepulse circuits for efficient excitation of gas lasers

Efficient impedance-matched gas laser excitation circuits integrally employ prepulse power generators. Magnetic switches are employed to both generate the prepulse and switch the prepulse onto the laser electrodes

Model of an Evolving and Dynamic Universe: Creation without a Big Bang

This chapter describes a non-relativistic, dynamic universe that evolves through continuous transformations of energy forms in contradistinction to a devolving Big Bang model. The new cosmology is accurately consistent with Hubble’s galactic redshifts, interpreted as simple Doppler shifts of fleeing galaxies, and as viewed from any arbitrary observer in the universe. It postulates the existence of repulsive electromagnetic (EM) force fields between galaxies, while maintaining the purely gravitational dynamics within each galaxy. Observed cosmic redshifts of galaxies and their apparent velocities and accelerations are matched, if galactic cores are assumed to have an unbalanced electric charge of 3 × 1032 C for an average galaxy with a mass of 4 × 1041 kg. Valid arguments are presented for the probable existence of intergalactic EM fields emanating from Supermassive Black Holes (SMBHs) in galactic cores. Special sections in this chapter are devoted: (a) to suggest plausible sources of new matter creation, (b) to discuss how Quasi-stellar Objects (QSOs or Quasars) can fit into this cosmological model, and (c) to counter critiques of the model

Lattice oscillator model, scattering theory and a many-body problem

We propose a model for the quantum harmonic oscillator on a discrete lattice which can be written in supersymmetric form, in contrast with the more direct discretization of the harmonic oscillator. Its ground state is easily found to be annihilated by the annihilation operator defined here, and its excitation spectrum is obtained numerically. The versatility of the model is then used to calculate, in a simple way, the generalized position-dependent scattering length for a particle colliding with a single static impurity in a periodic potential and the exact ground state of an interacting many-body problem in a one-dimensional ring.Comment: 3 Figures. Version accepted in J. Phys.

HABEAS CORPUS-FEDERAL COURTS-EXHAUSTION OF STATE REMEDIES

Petitioner\u27s writ of habeas corpus, alleging denial of due process of law in violation of the Fourteenth Amendment, was quashed on the merits by an inferior Florida court whose action was affirmed without opinion by the Florida Supreme Court. It was impossible to ascertain whether the affirmance was on the merits or on the ground that, under Florida law, habeas corpus was not the proper procedure to raise the due process issue. A later decision by the Florida Supreme Court clearly established that the prior case had been decided on the merits of the constitutional question, and that habeas corpus was available in Florida to raise the due process issue. Petitioner did not seek review of the Florida court\u27s decision by certiorari to the United States Supreme Court, but later instituted habeas corpus proceedings in a federal district court which ordered his release. On certiorari to the United States Supreme Court, held, the district court had properly exercised its discretion to issue the writ. Four justices dissented on the ground that, because petitioner had failed to exhaust his state remedies, the constitutional question was not properly before the court. Wade v. Mayo, 334 U.S. 672, 68 S.Ct. 1270 (1948)

Experimental study of viscous low-density nozzle flows Final report

Electron beam measurements of gas densities and rotational temperatures in viscous nozzle flo

The chiral and flavour projection of Dirac-Kahler fermions in the geometric discretization

It is shown that an exact chiral symmetry can be described for Dirac-Kahler fermions using the two complexes of the geometric discretization. This principle is extended to describe exact flavour projection and it is shown that this necessitates the introduction of a new operator and two new structures of complex. To describe simultaneous chiral and flavour projection, eight complexes are needed in all and it is shown that projection leaves a single flavour of chiral field on each.Comment: v2: 17 pages, Latex. 5 images eps. Added references, reformatted and clarification of some point