5,876 research outputs found

    Automated Microbial Metabolism Laboratory Final report

    Get PDF
    Photosynthesis activity during phosphate soil analysi

    Properties from relativistic coupled-cluster without truncation: hyperfine constants of 25Mg+^{25}{\rm Mg}^+, 43Ca+^{43}{\rm Ca}^+ , 87Sr+^{87}{\rm Sr}^+ and 137Ba+^{137}{\rm Ba}^+

    Full text link
    We demonstrate an iterative scheme for coupled-cluster properties calculations without truncating the dressed properties operator. For validation, magnetic dipole hyperfine constants of alkaline Earth ions are calculated with relativistic coupled-cluster and role of electron correlation examined. Then, a detailed analysis of the higher order terms is carried out. Based on the results, we arrive at an optimal form of the dressed operator. Which we recommend for properties calculations with relativistic coupled-cluster theory.Comment: 13 pages, 4 figures, 5 table

    Investigation of land use of northern megalopolis using ERTS-1 imagery

    Get PDF
    The author has identified the following significant results. It was concluded that ERTS land use mapping, in spite of portraying megalopolis more accurately and dramatically than the best past efforts, is in danger of falling into the category of being too revolutionary for many planners and too conventional for many electronics engineers. Two alternative solutions are implied: one is to improve the ERTS product to the level where it will be completely accepted by planners, and the other is to increase support for the present somewhat primitive product through education, cost-sharing, and legislation

    Automated Microbial Metabolism Laboratory Final report

    Get PDF
    Automated microbial metabolism life detection experiments for exobiological studie

    Evaluation of ERTS-1 data for acquiring land use data of northern Megalopolis

    Get PDF
    State planners are increasingly becoming interested in ERTS as a possible method for acquiring land use data. An important consideration to them is whether ERTS can provide such data at a savings in both time and money over alternative systems. A preliminary evaluation of ERTS as a planning tool is given

    Projectively Solid Sets and an N-dimensional Piccard's Theorem

    Get PDF
    We discuss functions f : X × Y → Z such that sets of the form f (A × B) have non-empty interiors provided that A and B are non-empty sets of second category and have the Baire property

    Coupled-cluster calculations of properties of Boron atom as a monovalent system

    Full text link
    We present relativistic coupled-cluster (CC) calculations of energies, magnetic-dipole hyperfine constants, and electric-dipole transition amplitudes for low-lying states of atomic boron. The trivalent boron atom is computationally treated as a monovalent system. We explore performance of the CC method at various approximations. Our most complete treatment involves singles, doubles and the leading valence triples. The calculations are done using several approximations in the coupled-cluster (CC) method. The results are within 0.2-0.4% of the energy benchmarks. The hyperfine constants are reproduced with 1-2% accuracy

    Totally bounded frame quasi-uniformities

    Get PDF
    summary:This paper considers totally bounded quasi-uniformities and quasi-proximities for frames and shows that for a given quasi-proximity ◃\triangleleft on a frame LL there is a totally bounded quasi-uniformity on LL that is the coarsest quasi-uniformity, and the only totally bounded quasi-uniformity, that determines ◃\triangleleft . The constructions due to B. Banaschewski and A. Pultr of the Cauchy spectrum ψL\psi L and the compactification ℜL\Re L of a uniform frame (L,U)(L, {\bold U}) are meaningful for quasi-uniform frames. If U{\bold U} is a totally bounded quasi-uniformity on a frame LL, there is a totally bounded quasi-uniformity U‾\overline{{\bold U}} on ℜL\Re L such that (ℜL,U‾)(\Re L, \overline{{\bold U}}) is a compactification of (L,U)(L,{\bold U}). Moreover, the Cauchy spectrum of the uniform frame (Fr(U∗),U∗)(Fr({\bold U}^{\ast }), {\bold U}^{\ast }) can be viewed as the spectrum of the bicompletion of (L,U)(L,{\bold U})

    Fock space relativistic coupled-Cluster calculations of Two-Valence Atoms

    Full text link
    We have developed an all particle Fock-space relativistic coupled-cluster method for two-valence atomic systems. We then describe a scheme to employ the coupled-cluster wave function to calculate atomic properties. Based on these developments we calculate the excitation energies, magnetic hyperfine constants and electric dipole matrix elements of Sr, Ba and Yb. Further more, we calculate the electric quadrupole HFS constants and the electric dipole matrix elements of Sr+^+, Ba+^+ and Yb+^+. For these we use the one-valence coupled-cluster wave functions obtained as an intermediate in the two-valence calculations. We also calculate the magnetic dipole hyperfine constants of Yb+^+.Comment: 23 pages, 12 figures, 10 tables typos are corrected and some minor modifications in some of the section

    Investigation of land use of northern megalopolis using ERTS-1 imagery

    Get PDF
    Primary objective was to produce a color-coded land use map and digital data base for the northern third of Megalopolis. Secondary objective was to investigate possible applications of ERTS products to land use planning. Many of the materials in this report already have received national, dissemination as a result of unexpected interest in land use surveys from ERTS. Of special historical interest is the first comprehensive urban-type land use map from space imagery, which covered the entire state of Rhode Island and was made from a single image taken on 28 July 1972
    • …
    corecore