A brief account is given of the origin and the historical development of the concepts of starspots and stellar activity in 19th century research of variable stars.
NASA Astrophysics Data System (ADS)
The pamphlet is a practical guide to demand-controlled energy accounting. A summary informs about the scope of the energy accounting ordinance and points out its latest modifications. Energy accounting problems arising in practice for renters and tenants ...
National Technical Information Service (NTIS)
One characteristic of buried district heating pipelines is their intensive interaction with the surrounding soil, which results from the changing temperature stresses. So far, this interaction could not be taken into account with sufficient accuracy in pi...
The production of pions by nucleus nucleus scattering under particular kinematical conditions is discussed. Taking into account only electromagnetic interactions between the nuclei a simple formalism is presented which allows to express the differential cross section and the angular distribution of the produced pions in terms of so called generalized form factors. Using the ...
In the experiments carried out, the 'LIST' system measured temperature changes of only a few tenths of a degree. As the control and evaluation unit took the temperature drift of the sensor cable due to the environment into account, the alarm thresholds co...
The physics of the magnetosphere are discussed in terms of the scientific aims of the IMS rocket campaigns. Emphasis is on phenomenology accounting for magnetic substorms. A particle experiment used to investigate the pitch angle distribution of protons i...
The effects of increased cosmic ray flux, such as near former supernovae, on the temperature and ioe local interstellar gas were investigated. Two conditions were set out: thermal radiation was taken into account since temperatures of over 10,000 K may be...
Professional textile cleaners provide cleaning services for clothes, textiles and leather articles. The German term for dry-cleaning used to be chemical-cleaning but this was changed to textile-cleaning, first, on account of the poor reputation of chemica...
A model for shear behavior of reinforced concrete beams is formulated and extended to spatial punching problem. The main theories of shear behavior and calculations based on the finite element method are presented. A model, which takes into account crack ...
