منابع مشابه
CSIRO PUBLISHING for CSIRO Australia and the Australian Academy of Science
An optical study has been made of La0 ·7Ca0 ·3MnO3 and La0 ·8Li0 ·2MnO3 in the infrared spectral region (100 cm−1 to 4000 cm−1). The transmission of all samples is negligible. The photoconductive response is also unmeasurable. The data reported are therefore restricted to reflectivity measurements. At room temperature, both materials exhibit similar ‘bending’ and ‘stretching’ phonon modes, asso...
متن کاملCSIRO PUBLISHING for CSIRO Australia and the Australian Academy of Science
A survey is given of experimental studies of electron attachment and recombination in dense molecular media, from which information on the effect of van der Waals potentials or on the existence of surrounding molecules on these processes is obtained.
متن کاملPublished by CSIRO PUBLISHING for CSIRO Australia and the Australian Academy of Science
Accurate low-energy electron scattering data are needed in many fields of physics. However, accurate experiments are difficult to design and to carry out. By 1967 low-energy electron–He cross sections had been measured by two different techniques, designed to provide accurate data. Unfortunately, the data differed by amounts well outside the estimated error bars. Despite the relative simplicity...
متن کاملCsiro Publishing
Whether to develop inbred cultivars or F1 hybrids is a dilemma faced by many rice (Oryza sativa L.) breeders. This could be partially answered if one could select superior recombinant inbred lines with an equal yielding ability and good quality traits from commercial F1 hybrids. Thus, it was attempted in this study to select superior inbred lines from 2 commercial F1 hybrids after application o...
متن کاملRADIO FREQUENCY INTERFERENCE MITIGATION IN RADIOASTRONOMY M.Kesteven Australia Telescope National Facility CSIRO
RFI is increasingly a problem for radioastronomy with the ever expanding use of the radio spectrum by both the communications industry (transmitting) and the radioastronomers (receiving). Regulation can protect a few windows in the radio spectrum, but many experiments now need to access parts of the spectrum outside the reserved regions. Spectral lines, for example, may be significantly doppler...
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ژورنال
عنوان ژورنال: Nature
سال: 1983
ISSN: 0028-0836,1476-4687
DOI: 10.1038/305264b0