14,233 research outputs found
ALSEP termination report
The Apollo Lunar Surface Experiments Package (ALSEP) final report was prepared when support operations were terminated September 30, 1977, and NASA discontinued the receiving and processing of scientific data transmitted from equipment deployed on the lunar surface. The ALSEP experiments (Apollo 11 to Apollo 17) are described and pertinent operational history is given for each experiment. The ALSEP data processing and distribution are described together with an extensive discussion on archiving. Engineering closeout tests and results are given, and the status and configuration of the experiments at termination are documented. Significant science findings are summarized by selected investigators. Significant operational data and recommendations are also included
Resistive Magnetohydrodynamic Equilibria in a Torus
It was recently demonstrated that static, resistive, magnetohydrodynamic
equilibria, in the presence of spatially-uniform electrical conductivity, do
not exist in a torus under a standard set of assumed symmetries and boundary
conditions. The difficulty, which goes away in the ``periodic straight cylinder
approximation,'' is associated with the necessarily non-vanishing character of
the curl of the Lorentz force, j x B. Here, we ask if there exists a spatial
profile of electrical conductivity that permits the existence of zero-flow,
axisymmetric r esistive equilibria in a torus, and answer the question in the
affirmative. However, the physical properties of the conductivity profile are
unusual (the conductivity cannot be constant on a magnetic surface, for
example) and whether such equilibria are to be considered physically possible
remains an open question.Comment: 17 pages, 4 figure
CONFLICT OF LAWS - NEGOTIABLE INSTRUMENTS - SITUS OF BEARER BONDS UNDER THE TRADING WITH THE ENEMY ACT
ln a suit on a negotiable instrument, a problem arises as to just how many places can claim valid jurisdiction. Thus, where the domiciles of the parties to a negotiable instrument are diverse, there are several jurisdictional possibilities. For example, with regard to a negotiable bearer bond it may be said that there is sufficient contact with the parties and/or the property (1) at the place where it was issued, (2) at the present location of the certificate of indebtedness, (3) at the location of the debtor corporation\u27s office or principal place of business, or (4) in the state of incorporation of the debtor corporation. Logically, the location of either the certificate of indebtedness or the debtor himself would seem to be the preferable choices, and the conflict between them has been a source of frequent controversy. It is generally felt that the location of the certificate itself should be allowed to govern, but the purpose for which the decision is being made has occasionally altered a court\u27s view in this respect. The purpose of this discussion is to point to the problems inherent in specifying the situs of the property interest of a negotiable bearer bond, particularly with relation to the subjection of such property interest to the provisions of the Trading With the Enemy Act
CIVIL PROCEDURE-JURISDICTION-COMMISSION OF ISOLATED TORT BY FOREIGN CORPORATION AS DOING BUSINESS WITHIN THE STATE
Plaintiff, a Vermont resident, brought action for damages in the Vermont court, alleging negligence of defendant in re-roofing plaintiff\u27s house located in that state. Defendant, a Massachusetts corporation, had not qualified to do business in Vermont, nor had it appointed an agent to receive service therein. There was no evidence to indicate that defendant was actively engaged in business there. Substituted service was made upon defendant through the Secretary of State of Vermont as authorized by a statute. The statute stipulated that the term doing business included those instances in which a foreign corporation made a contract in Vermont with a resident thereof which called for performance within the state; or in which a foreign corporation committed a tort in whole or in part in Vermont. There was no question concerning adequacy of notice and opportunity to appear. Held, a state may constitutionally pass a statute subjecting a foreign corporation which commits a tort wholly within the state to the jurisdiction of its courts for the purpose of determining liability for damages arising froiμ such a tort. Smyth v. Twin State Improvement Corporation, (Vt. 1951) 80 A.(2d) 664
TAXATION-FEDERAL INCOME TAX-DEDUCTIBILITY OF CONTRIBUTIONS TO PROFIT-SHARING TRUSTS
Plaintiff corporation set up a profit sharing trust for the benefit of its employees as authorized under section 165(a) of the Internal Revenue Code. The plan for the trust, as approved by the Treasury, provided that plaintiff should contribute annually an amount equal to 15 % of net income, as defined, not to exceed 15% of basic salary or wages of all eligible participating employees. For the tax year 1944 plaintiff claimed deductions under section 23(p)(1)(C) for an amount equal to 15% of the total participating payroll, which is actually the allowable maximum, but which in this case exceeded 15% of the net income figure. The Collector of Internal Revenue reduced the allowable deduction to the latter amount and declared a deficiency, which the plaintiff paid. This action was brought in the federal district court to secure a refund. Held, the amount by which the contribution exceeded 15% of net profits was not authorized by the approved plan and did not constitute an allowable deduction as an ordinary and necessary business expense under the Internal Revenue Code. Gross-Given Mfg. Co.v. Kelm, Collector of Internal Revenue, (D.C. Minn. 1951) 99 F. Supp. 144
Longtime behavior of nonlocal Cahn-Hilliard equations
Here we consider the nonlocal Cahn-Hilliard equation with constant mobility
in a bounded domain. We prove that the associated dynamical system has an
exponential attractor, provided that the potential is regular. In order to do
that a crucial step is showing the eventual boundedness of the order parameter
uniformly with respect to the initial datum. This is obtained through an
Alikakos-Moser type argument. We establish a similar result for the viscous
nonlocal Cahn-Hilliard equation with singular (e.g., logarithmic) potential. In
this case the validity of the so-called separation property is crucial. We also
discuss the convergence of a solution to a single stationary state. The
separation property in the nonviscous case is known to hold when the mobility
degenerates at the pure phases in a proper way and the potential is of
logarithmic type. Thus, the existence of an exponential attractor can be proven
in this case as well
Bulk phase behaviour of binary hard platelet mixtures from density functional theory
We investigate isotropic-isotropic, isotropic-nematic and nematic-nematic
phase coexistence in binary mixtures of circular platelets with vanishing
thickness, continuous rotational degrees of freedom and radial size ratios
up to 5. A fundamental measure density functional theory, previously
used for the one-component model, is proposed and results are compared against
those from Onsager theory as a benchmark. For the system
displays isotropic-nematic phase coexistence with a widening of the biphasic
region for increasing values of . For size ratios , we
find demixing into two nematic states becomes stable and an
isotropic-nematic-nematic triple point can occur. Fundamental measure theory
gives a smaller isotropic-nematic biphasic region than Onsager theory and
locates the transition at lower densities. Furthermore, nematic-nematic
demixing occurs over a larger range of compositions at a given value of
than found in Onsager theory. Both theories predict the same
topologies of the phase diagrams. The partial nematic order parameters vary
strongly with composition and indicate that the larger particles are more
strongly ordered than the smaller particles
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