Thermal pump-compressor for space use Patent

Thermal pump-compressor for converting solar energ

Decrease in the high energy X-ray flux from Cen XR-2. Search for X-rays from the large and small Magellanic clouds

High energy X ray sky survey data on decreased intensity of Cen XR-2, and X ray energy flux from Magellanic clouds - Mildura, Australia, October 15 and 24, 196

Switching and Extension of a [c2]Daisy-Chain Dimer Polymer

We report the synthesis of a [c2]daisy-chain dimer via ruthenium-catalyzed ring-closing olefin metathesis. Confirmation of the interlocked nature of the structure was achieved through single-crystal X-ray diffraction analysis. The dimer could be readily switched from the bound to the unbound conformation by treatment with 3.0 equiv of KOH and subsequently reprotonated by treatment with 3.0 equiv of HPF_6. Azide functionalization of the dimer enabled incorporation in linear step-growth polymer chains using the alkyne-azide “click” reaction. Gel permeation chromatography coupled with multiangle laser light scattering analysis showed the polymers contained 22 dimers and had a radius of gyration of 14.8 nm. Acylation of the amines of the dimers sterically forced elongation of the interlocked units, and MALLS analysis of the polymer showed a 48% increase in the R_g (21.4 nm)

Energy Conservation Analysis

There are many building simulation programs on the market that calculate the annual energy use for a facility. These programs are difficult to for use in energy conservation projects. The designer must run a complete simulation for each intended design or systems modification. This can be time consuming and expensive. This report describes a program that performs an energy analysis in a way that is much more convenient for the energy analyst. Several common conservation projects are featured in the program: tinting glass, single-to-double pane conversion, adding roof insulation, savings from landscape features, external wall shading and reduction in outside air. Each of these are evaluated in a separate building load subroutine. The program computes and displays the annual load profile for each of these components of the envelope. It can then calculate the exact savings possible, for example, by modifying south-facing window, or by planting fast-growing shade trees to the west of the building. This is to permit the user to focus limited funds on specific projects. The analysis takes into account geographic location, ambient temperature and latitude. It also permits the user to modify these parameters to conform to unique local conditions. The software will rotate a building as well, to discern the effect on loads of a change in building orientation. Another feature is the ability to separate the building load by specific elements. Each screen used to input glass, roof, wall or floor data also gives a reading on the load attributed to that particular element alone, (e.g. each individual wall, window or roof section) converted into annual energy use. This is useful to the designer as it gives a relative perspective on the building load, of changes in insulation, glass area or wall color. The program is complete with help screens, pull-down menus, input help and range constraints on data entry. It also has a full range of data editing review and print-out features

Lowest Order Constrained Variational Calculation of the Polarized Nuclear Matter with the Modern AV18AV_{18} Potential

The lowest order constrained variational method is applied to calculate the polarized symmetrical nuclear matter properties with the modern $AV_{18}$ potential performing microscopic calculations. Results based on the consideration of magnetic properties show no sign of phase transition to a ferromagnetic phase.Comment: 19 pages, 6 figure

The Use of a Ballistic Galvanometer and Pendulum for Measuring Rapidly Fluctuating Resistances

The degree of accuracy with which physicists have divided the fundamental units of length and mass, the centimeter and the gram, demands a division equally as accurate of the remaining unit, the unit of time. We are all familiar with Michelson\u27s measurement of the standard meter where a half and a quarter wave length of light was a quantity not to be neglected. Our recent literature describes a balance which will weigh to one millionth of a milligram. When we consider these facts and the added fact that time so often enters into our formulae to the second degree we see the necessity of accurate small divisions of our unit of time