Hygrometric Slide Rule

The Healthy Food Slide Rule (HFSR): a nutrition education tool for children.

Slide-rule-like property of Wigner's little groups and cyclic S matrices for multilayer optics.

It is noted that 2x2 "S" matrices in multilayer optics can be represented by the Sp(2) group whose algebraic property is the same as the group of Lorentz transformations applicable to two spacelike and one timelike dimensions. It is also noted that Wigner's little groups have a slide-rule-like property that allows us to perform multiplications by additions. It is shown that these two mathematic...

A slide rule for time conversion for bromsulphalein (BSP) retention studies.

THE Bromsulphaleimm (BSP) test of Rosenthal ammd White (1) has undergone several modifications (2) imi the 40 years following its introduction. Like most drugs, BSP is removed from blood plasma at a rate which is proportional to its concentratiomi, that is, a first-order reactiomi (3). As would be expected for a first-order reaction, a graph of In (BSP) or log (BSP) vs. time results iii a strai...

A dynamic model for the thermal-hygrometric simulation of buildings

Dynamic models for the energy simulation of building-plant systems are becoming useful tools in the process of building design by defining operating conditions and finding appropriate control strategies. Therefore simple softwares able to correctly predict the thermal behaviour of rooms, and thus allowing to get comfort conditions and loads, are needed. In this paper a dynamic simulation model ...

Anti-Slide

The anti-slide packing is a packing of a number of three dimensional pieces of same size into a larger box such that none of them can slide in any direction. In this paper, we consider the problem of how to find a sparsest anti-slide packing. We give an IP formulation of this problem, and obtain the solutions for some small cases by using an IP solver. In addition, we give the upper and lower b...