Radial honeycomb core

Core alleviates many limitations of conventional nacelle construction methods. Radical core, made of metals or nonmetals, is fabricated either by joining nodes and then expanding, or by performing each layer and then joining nodes. Core may also be produced from ribbons or strips with joined nodes or ribbons oriented in longitudinal planes

Large antenna apertures and arrays for deep space communications

Effect of frequency on communications capability, single antennas and arrays, and economic balance between ground station and spacecraft developmen

Specific Enhancement of Transplantation Immunity with Heat-killed Mycobacterium Butyricum and Immunizing Extracts from Adenovirus 12-Induced Tumour Cells

Transplant immunity to adenovirus 12-induced tumour cells was demonstrated in CBA mice which had been previously immunized with extracts of homologous tumour cells. Immunization of mice with tumour cell extract together with heat-killed Mycobacterium butyricum gave better transplant immunity to tumour cell challenge than tumour extracts alone. Mice immunized with Mycobacterium butyricum alone prior to challenge with tumour cells, did not show any significant difference in the incidence of tumours from control mice

A study of weather-dependent data links for deep space applications

Weather-dependent data links for deep space applications, and five potential system