14,045 research outputs found
Evaluation of EREP techniques for geological mapping
The author has identified the following significant results. Skylab photographs may be successfully utilized for preparing a reconnaissance geological map in the areas where no maps or semi-detailed maps exist. Large coverage of area and regional perspective from Skylab photographs can help better coordination in regional mapping. It is possible to delineate major structural trends and other features like mega-lineaments, geofractures, and faults, which have evaded their detection by conventional methods. The photointerpretability is better in areas dominated by sedimentary rocks. Rock units of smaller extent and having poor geomorphic expressions are difficult to map. Demarcation of quaternary river alluvium can be made with better precision and ease with the Skylab photographs. Stereoscopic viewing greatly helps in interpretation of area structures. Skylab photographs are not good for preparing geological maps larger than 1:270,000 scale
Interpolation function of the genocchi type polynomials
The main purpose of this paper is to construct not only generating functions
of the new approach Genocchi type numbers and polynomials but also
interpolation function of these numbers and polynomials which are related to a,
b, c arbitrary positive real parameters. We prove multiplication theorem of
these polynomials. Furthermore, we give some identities and applications
associated with these numbers, polynomials and their interpolation functions.Comment: 14 page
Quasideuterons in Light Nuclei
The role of pairing correlations for nucleon pairs with isospin and
is investigated for nuclei in the mass region . For
that purpose the two-nucleon densities resulting from nuclear shell-model
calculations in one and two major shells are analyzed. Significant effects on
the resulting energies are observed due to the formation of pairs. The
formation of quasi-deuterons is maximal for symmetric nuclei with . The
formation of pairs is less sensitive to the density of single-particle
states close to the Fermi energy than the pairing and is relevant also
for excitations across shell-closures. This robustness also explains why
pairing does not lead to such a clear evidence in comparing energies of
neighbored nuclei as the "odd-even mass staggering" due to the formation of
pairing.Comment: 8 pages, 5 figur
Excitation of the Lowest Autoionizing Levels in Lithiumlike Ions by Electron Impact
We present theoretical, differential, and total cross sections for electron impact excitation of the lowest autoionizing levels of various lithiumlike ions (viz., Be+, B2+, C3+, O5+, and Ne7+). For these ions, the autoionizing level of interest results from excitation of an inner-shell electron. A distorted-wave Born approximation (with exchange) is used for the calculation. The present results are compared with previous theoretical calculations and it is concluded that the Coulomb-Born approach is unreliable, particularly near threshold
Uniqueness of nontrivially complete monotonicity for a class of functions involving polygamma functions
For , let
on . In the
present paper, we prove using two methods that, among all for
, only is nontrivially completely monotonic on
. Accurately, the functions and are
completely monotonic on , but the functions for
are not monotonic and does not keep the same sign on
.Comment: 9 page
Energy Dependence of Short and Long-Range Multiplicity Correlations in Au+Au Collisions from STAR
A general overview of the measurement of long-range multiplicity correlations
measured by the STAR experiment in Au+Au collisions at RHIC is presented. The
presence of long-range correlations can provide insight into the early stages,
and the type of matter produced in, these collisions. These measurements have
been made in Au+Au collisions at = 200 and 62.4 GeV. These
results indicate a relatively large long-range correlation is produced in Au+Au
collisions compared to a {\it pp} baseline at = 200 GeV. A
weaker long-range correlation is seen as a function of incident energy.
Further, comparison of the onset of the long-range correlation to the
calculated percolation density parameter at = 200 GeV is
presented.Comment: 8 pages, 6 figures, Conference Proceedings for the XI International
Workshop on Correlation and Fluctuation in Multiparticle Production,
Hangzhou, China, November 21-25, 200
Information Systems (IS) Discipline Identity: A Review and Framework
The recent debate about crisis in the Information Systems (IS) discipline is largely attributed to its having a fluid discipline identity. Myriad conceptualizations of IS discipline identity have resulted in a plethora of unstructured and disconnected recommendations for the survival and growth of the IS field. It is therefore essential to have a theoretical framework which explains: What is IS discipline identity? In this study, we address this void in the identity literature. By extending and borrowing from the concepts of organizational and self-identity, we propose a theoretical framework for discipline identity and explicate its dimensions with respect to the IS discipline. The three contextual questions of discipline identity about purpose, period, and place set the stage for an in-depth inquiry of the three constitutive questions (or dimensions): periphery, perspective, and process, to provide a holistic framework for conceptualizing IS discipline identity. Further, we conceptualize IS discipline identity process as consisting of four recursive and iterative sub-processes: copy, consolidate, differentiate, and demonstrate (CCDD). We posit that an iterative hermeneutic focus on these four sub-processes is vital for the health of the discipline and neglecting even one of them will lead to an imbalanced identity structure. Through this paper, we seek to stimulate and further the ongoing debate on the topic
- …