The objective of this experiment is to better understand the combustion behavior of pulsed, turbulent diffusion flames by conducting experiments in microgravity. The fuel jet is fully-modulated (i.e., completely shut off between pulses) by an externally controlled valve system leading to enhanced fuel/air mixing compared to acoustically excited or partiallymodulated jets[1]. Experiments are con...

The paper presents the design and experimental experience with the gas flow measurement instrument for the range of (5 – 25) ml/hr. The aimed application area is in a biochemical laboratory for the study of reaction kinetic of sediments decomposition in waste water. The time – of – flight type of sensor with one upstream and one downstream temperature sensor has been chosen for the study. We ex...

or merely theoretical interest, but that it is justified by the fact that the whole subject of terrestrial radiation, the temperature of the surface of our planet, and the conditions of organic life upon it are intimately related to that of our present research. The entire radiation of the soil of our earth towards space goes on in a spectral region of which we have hitherto known nothing. Thes...

SCHWINGHAMER, E. A. (Brookhaven National Laboratory, Upton, N. Y.), AND R. L. DALMAS. Studies on induced variation in the rhizobia. II. Radiation sensitivity and induction of antibiotic-resistance markers. Appl. Microbiol. 9:410-414. 1961.-The relation between survival and dose of ultraviolet (UV) light or X rays was, with only one exception, nonlinear for late-log-phase cultures of four specie...

A chlorophyll-deficient mutant of pea (Pisum sativum) was found as a spontaneous mutation of the variety Greenfeast. Total chlorophyll of the mutant leaves was about one-half that of normal pea leaves per mg dry weight, and the ratio of chl a:chl b ranged from 10 to 18, compared with 3 for normal pea. In each generation the mutant plants gave rise to normal and mutant plants and lethal plants w...

We report the first experimental determination of the electron affinity of gallium. The experiment was performed using the laser photodetachment electron spectrometry technique. Photoelectron kinetic energy spectra from Cu− and O− were used to calibrate the energy scale for the Ga− photoelectron energy spectra. The electron affinity was determined to be 0.43±0.03 eV. This measurement is compare...

We report solar cells based on highly confined nanocrystals of the ternary compound PbSxSe1-x. Crystalline, monodisperse alloyed nanocrystals are obtained using a one-pot, hot injection reaction. Rutherford back scattering and energy-filtered transmission electron microscopy suggest that the S and Se anions are uniformly distributed in the alloy nanoparticles. Photovoltaic devices made using te...

A high-temperature Seebeck effect calorimeter, in which the thermoelectric emf across a large-area enveloping thermopile is a measure of the heat flux from a power source, has been constructed to examine the claimed generation of excess thermal energy from a protonconducting oxide immersed in deuterium gas. The claim has been confirmed in a few experiments out of many unsuccessful ones. INTRODU...