How to Grow Grapes in the Home Garden

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Synthesis of siloxane-containing epoxy polymers Patent

Synthesis of siloxane containing epoxy polymers with low dielectric propertie

Grafting and Budding Fruit Trees

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Growing Pears in Ohio

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Improved printed-wiring boards for high-reliability circuits

Experimental board includes three layers of special tridirectionally woven fabric. Alumina particles play major role in reducing coefficient of expansion. They also serve as heat sink for heat-generating components

Pruning Small Fruits

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On a question of H. A. Schwarz

This paper is a contribution to the study of tetrahedra with rational side lengths and rational volume. The problem can be formulated as a study of a hyperelliptic variety attached to the Cayley-Menger determinant. The problem posed by Schwarz was as to whether this variety is rational over the rationals. In a thesis that was never published Otto Schulz proved in 1912 that the variety was rational over $\mathbb Q(\sqrt{-1})$. This does not seem to have appeared eleswhere nor, apparently, has the question been studied since then. In this paper we take up an idea of Kurt Heegner to reprove the theorem using the theory of Weddle surfaces. Although this does not lead to a final answer to Schwarz question it seems likely that it is negative.Comment: The mathematics described here was presented and discussed at the conference "Thermodynamics Formalism- Applications to Geometry, Number Theory and Stochastics" (8th-12th July, 2019) at the Mittag-Leffler Institute, Djursholm This is the revised version following the referee's repor

How to Grow Bush Fruits in the Home Garden

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Alpha particle backscattering measurements used for chemical analysis of surfaces

Alpha particle backscattering performs a chemical analysis of surfaces. The apparatus uses a curium source and a semiconductor detector to determine the energy spectrum of the particles. This in turn determines the chemical composition of the surface after calibration to known samples