Nuclear incompressibility using the density dependent M3Y effective interaction

A density dependent M3Y effective nucleon-nucleon (NN) interaction which was based on the G-matrix elements of the Reid-Elliott NN potential has been used to determine the incompressibity of infinite nuclear matter. The nuclear interaction potential obtained by folding in the density distribution functions of two interacting nuclei with this density dependent M3Y effective interaction had been shown earlier to provide excellent descriptions for medium and high energy $\alpha$ and heavy ion elastic scatterings as well as $\alpha$ and heavy cluster radioactivities. The density dependent parameters have been chosen to reproduce the saturation energy per nucleon and the saturation density of spin and isospin symmetric cold infinite nuclear matter. The result of such calculations for nuclear incompressibility using the density dependent M3Y effective interaction based on the G-matrix elements of Reid-Elliott NN potential predicts a value of about 300 MeV for nuclear incompressibility.Comment: 4 Page

Micromagnetic Simulation of Non Uniform Nanodots with Perpendicular Anisotropy

Multilayered Pt/[Co/Pt]/sub 5/ films were fabricated into patterned dots with diameters of 120 and 200 nm by laser interference lithography. Anomalous Hall effect (AHE) measurements were used on an array of dots to measure the switching field and the effects of reversal of an area with reduced anisotropy in the dot were also investigated by micromagnetic simulation. It was shown that a reduction in switching field is caused by an area of reduced anisotropy. The effect of various combinations of a reduction in anisotropy and/or exchange constant, and the size and shape of the area were also discussed in this paper

Office Clutter and Its Influence: Assessing Engagement, Satisfaction, Tension, Stress, and Emotional Exhaustion

Psychological home is a relatively new topic within the field of psychology, defined as a person’s need to self-identify with a physical environment. Clutter, defined as the over-accumulation of material items, is even less studied. Previous research has shown that clutter in the home may negatively influence a person’s well-being, but this tendency has not been investigated in workplace settings (Crum & Ferrari, 2019a; Crum & Ferrari, 2019b; Roster, Ferrari & Jurkat, 2016). Within workplace research, there is a construct called work-related well-being (Narainsamy & Van Der Westhuizen, 2013; Rothman, 2008), consisting of job satisfaction, employee engagement, burnout, and occupational stress. Previous research has shown that job-related tension may negatively impact job satisfaction (Bateman & Strasser, 1983). The present study will address whether clutter in the office negatively impacts work-place well-being, using a crowd-sourced sample of adults (n = 290) who work full-time within the United States in office and home settings. It was hypothesized that office clutter would negatively impact job satisfaction and employee engagement, positively impact emotional exhaustion and occupational stress, and job-related tension was expected to moderate the relationship between office clutter and job satisfaction. Multiple linear regressions and a moderated regression were used to analyze the data and test the hypotheses. This present study benefited both scientists and practitioners by helping them understand the possible benefits of companies initiating “clean desk policies” and how personal materials and spending habits may reflect workplace behaviors or impact work outcomes

Effect of Cross-Linking on the Electrical Properties of LDPE and its Lightning Impulse Ageing Characteristics

Cross-linked polyethylene (XLPE) is commonly used within high voltage cable insulation. It has improved thermal and mechanical resistance compared to normal low density polyethylene (LDPE). However, the cross-linking process may also vary the electrical characteristics of the material. This paper investigates changes in electrical properties of one type of LDPE before and after cross-linking. The effective lightning resistance is also considered, as the application of repetitive lightning impulse overvoltages can be a factor in insulation material ageing of high voltage cables. The material was cross-linked using trigonox-145 peroxide with controlled concentration. Samples were moulded to have a Rogowski profile and gold coated to make sure that they are evenly electrically stressed. Obtained results show that there are reductions in both space charge injection and the permittivity of the material after it is cross-linked. The breakdown strength of the material was also improved. However, the samples studied are more susceptible to ageing due to lightning impulses