Optical instrumentation data evaluation of the SA-204/LM-1 Saturn 1B launch vehicle

Optical instrumentation data evaluation of SA- 204 /LM-1/ Saturn 1B launch vehicl

From white elephant to Nobel Prize: Dennis Gabor’s wavefront reconstruction

Dennis Gabor devised a new concept for optical imaging in 1947 that went by a variety of names over the following decade: holoscopy, wavefront reconstruction, interference microscopy, diffraction microscopy and Gaboroscopy. A well-connected and creative research engineer, Gabor worked actively to publicize and exploit his concept, but the scheme failed to capture the interest of many researchers. Gabor’s theory was repeatedly deemed unintuitive and baffling; the technique was appraised by his contemporaries to be of dubious practicality and, at best, constrained to a narrow branch of science. By the late 1950s, Gabor’s subject had been assessed by its handful of practitioners to be a white elephant. Nevertheless, the concept was later rehabilitated by the research of Emmett Leith and Juris Upatnieks at the University of Michigan, and Yury Denisyuk at the Vavilov Institute in Leningrad. What had been judged a failure was recast as a success: evaluations of Gabor’s work were transformed during the 1960s, when it was represented as the foundation on which to construct the new and distinctly different subject of holography, a re-evaluation that gained the Nobel Prize for Physics for Gabor alone in 1971. This paper focuses on the difficulties experienced in constructing a meaningful subject, a practical application and a viable technical community from Gabor’s ideas during the decade 1947-1957

Emergent Collectivity in Nuclei and Enhanced Proton-Neutron Interactions

Enhanced proton-neutron interactions occur in heavy nuclei along a trajectory of approximately equal numbers of valence protons and neutrons. This is also closely aligned with the trajectory of the saturation of quadrupole deformation. The origin of these enhanced p-n interactions is discussed in terms of spatial overlaps of proton and neutron wave functions that are orbit-dependent. It is suggested for the first time that nuclear collectivity is driven by synchronized filling of protons and neutrons with orbitals having parallel spins, identical orbital and total angular momenta projections, belonging to adjacent major shells and differing by one quantum of excitation along the z-axis. These results may lead to a new approach to symmetry-based theoretical calculations for heavy nuclei.Comment: 6 pages, 4 figure

Nascent Leadership Behaviors

This paper is a compendium of leadership behaviors that emerging or aspirant leaders could choose to enhance their management and leadership skills. These behaviors were drawn directly from the experience of the authors, both of whom have held senior leadership and management positions in business, law, and higher education. This paper is an outgrowth of more than a decade of experience in teaching leadership in graduate MBA programs and in undergraduate business policy and strategy capstone courses. MBA programs typically have a dedicated course on leadership and undergraduate capstone courses focus on leadership, business policy and strategy. Normally course material is presented through case studies, readings and lectures on leadership and leadership theory. Most, although not all, students have limited or no management experience and they hope to advance their management and leadership skills which they believe should in turn result in their career success. During our years of teaching leadership, many students asked the authors about specific leadership actions they could utilize in their nascent business careers. The material presented in this paper is oriented towards practical and actionable steps that the aspiring leader can decide to apply with the caveat that common sense and sensitivity to the individual circumstances will vary greatly. However, sooner or later the right time to distinguish oneself will surely occur and that the behaviors presented in this paper can be of value to entry and junior level managers

Capstone Course Innovation: Bloomberg Professional Service

This paper reports on the introduction of a curricular innovation in a required capstone course: namely the Business Policy and Strategy course in the School of Business at Adelphi University. The curriculum capstone courses have tended to primarily include business related case studies and business simulation exercises. Consequently, curriculum content innovation can be very difficult to implement. The School of Business was recently equipped with a proprietary Bloomberg professional system (BPS) lab as a resource for graduate and undergraduate finance majors. After a training session by one of the authors of this paper, a class assignment was conceived on how the BPS lab could be used in a capstone course without a major disruption of the existing course requirements. This paper described the assignment and presents the results of a survey conducted on the last class day on what the students thought of the BPS assignment which was entitled: “Adopt A Company.

Gully Control on the Sumter National Forest in S.C.

2008 S.C. Water Resources Conference - Addressing Water Challenges Facing the State and Regio

Quark-antiquark pair production in space-time dependent fields

Fermion-antifermion pair-production in the presence of classical fields is described based on the retarded and advanced fermion propagators. They are obtained by solving the equation of motion for the Dirac Green's functions with the respective boundary conditions to all orders in the field. Subsequently, various approximation schemes fit for different field configurations are explained. This includes longitudinally boost-invariant forms. Those occur frequently in the description of ultrarelativistic heavy-ion collisions in the semiclassical limit. As a next step, the gauge invariance of the expression for the expectation value of the number of produced fermion-antifermion pairs as a functional of said propagators is investigated in detail. Finally, the calculations are carried out for a longitudinally boost-invariant model-field, taking care of the last issue, especially.Comment: 32 pages, 8 figures, revised versio