... Title : Moeglichkeiten und Grenzen der Linearisierung in der Stroemungsmechanik (Possibilities and Limits in the Linearization of Fluid ...

... Title : MOEGLICHKEITEN UND PROBLEME DER BIOLOGIE IM ZEITALTER DER RAUMFAHRT (Potentialities and Problems of Biology in the Age ...

... RAUMFAHRER (Possibilities and Problems in Operating of Quasi-Independent Storage and Supply Biological Maintenance Systems for Astronauts ...

The report presents a comprehensive survey of the regime of radioactive waste treatment in Germany. Contents: Introductory survey. Collection of residues. Classification and labelling of radioactive resiudes. Transport of radioactive material. Recycling o...

For the reduction of environmental impact caused by the present energy supply system, numerous and different measures are necessary. From the technical-physical point of view and in view of environmental aspects, the following measures seem to be especial...

A bionic motion analysis on a healthy human arm is used to determine the positioning of swivel joints in a prosthetic device for armless man.

Industrial quality control by means of image processing systems is discussed. Limitations imposed by spatial resolution, production speed, and the complexity of the image processing algorithm are taken into account. The general concept of object and model...

Described are several methods of energetic use of wastes (mainly plastic wastes) and biomass, as well as the recycling of plastic wastes. Processes described here are: NOELL conversion process, Thermoselect, PyroMelt process, Siemens carbonization combust...

The feasibility study of the mine Konrad for the final disposal of LLW and decommissioning waste from nuclear power stations terminated in 1982 with the compilation of a final report and proved both the suitability of the mine for such final disposal and ...

In this, the use of expansion machines in the transport of natural gas in long pipelines to the end user is described. The technique of the pressure relieving machines is dealt with in detail. A further point is the economics for the individual supply und...

Political activities under way world-wide aim to cut down on the production of chlorofluorocarbons as a prophylactic means to reduce emissions from their application before hand, for the benefit of the ozone layer - in the sectors of aerosol technology (s...

The Eighth Technical Report of the study 'Analysis of Possibilities of Solar Power Supply and its Development in Nordrhein-Westfalen' describes the potentials of energy saving and the expected energy prices of different renewable energy systems in four mo...

Using radioecological models, limits for the specific activity of low-activity waste containing natural radionuclides were established. These limits were determined in order to avoid dose equivalents of more than 10 (mu)Sv/a at disposing the waste in conv...

Since the early seventies, concepts of long term energy systems based solely on solar energy have been widely discussed. Among these are drafts of systems using hydrogen as fuel and a universal carrier of secondary energy. The range of concepts is broad, ...

The investigations described were carried out in such a way as to fulfil the defined requirements of serial computed tomography like short periods of measurement, high scanning frequency and intravasal bolus injection of a contrast medium that would readi...

A review of application possibilities and principles of scanning electron microscopy is presented, together with first results on oil lubricated sliding surfaces with an oil test apparatus. The test equipment used was a Wintershall/Baist friction and wear...

The aims of the German space travel project are outlined, in particular innovation through space travel technique applications and increase in competitive ability for the German industry. The tender process is described. Advice is given to the small and m...

Up till now, systematic analysis and periodic recording of air pollutant emissions has only been carried out for SO(sub 2), NO(sub x), CO, dust and the totality of volatile organic compounds (VOC). The aim of this work was to show, particularly for the ot...

Sponsored by the Federal Ministry of Research and Technology (BMFT) Eternit AG tested the possibilities to substitute asbestos fibers in asbestos cement. A new method of manufacturing, flow-on, was applied under industrial conditions in connection with a ...

The present paper discusses the simple transfer model. After the Chernobyl fallout in Austria field investigations dealt with the behavior of radionuclides in the soil-plant system. They led to the following conclusions: (1) A single plowing does not resu...

As a central supervision authority the National Electrical Safety Board (Elsaekerhetsverket) has the main responsibility for the safety of high voltage power lines and other power electric equipment. It is therefore also responsible for questions concerni...

Doerffels Name ist mit der Geschichte der Kometenforschung am Ende des 17.\\ Jahrhunderts eng verknuepft. Bisher war es offenbar nicht gelungen, den Geistlichen aus dem saechsischen Vogtland, der sich durch solide wissenschaftliche Arbeiten auszeichnet, objektiv ins astronomische Geschichtsbild einzuordnen. Im Nacheinander der Erkenntnisse lie�e sich wohl herausfinden, an welcher Stelle Doerffel ...

Longer-living positron emitter and generator systems for positron emitter offer possibilities to complement nuclear medical investigation using positron emission tomography with shortliving positron emitters. Different classes of longer-living and generat...

... Indirect thrust measuring methods are described and the relation between measurement parameters and thrust is presented. ...

The scope of this work is the summarization of the knowledge about the thermal waste treatment in rotary kilns, as far as it is published in the scientific literature. The main focus was the incineration of hazardous waste in rotary kilns with afterburnin...

With regard to the commissioning of the Konrad repository for radioactive waste with negligible heat development and with regard to the legal prohibition of storage of mixed wastes, there is a great interest in a technique allowing toxic organic waste to ...

The thermic effect caused by the shrinkage and the drying of the tissues is used for cutting, denaturation, and coagulation of tissues with simultaneous filling of the blood and lymphatic vessels. The surgical Nd:YAG lasers, whose utilization is based on ...

Several experimental setups and IR optical equipment were constructed and the concept of an IR image test device is described. Various types of sealed off tubes were produced and tested in order to find a target mounting with a possibly low stray capacita...

After looking at the 'state of the art' this study determines research and development projects that need to be undertaken on the area of cutting pollution by small furnaces. Based on energy consumption and heating structure the authors then describe the ...

Design to cost analysis of adding Al to the fuel of an H2/O2 Moon rocket is examined. The idea is to decrease the H2 part which must be imported from Earth, while Al and O2 are produced on Moon for assumed 5 to 10 $/kg. Specific transportation costs were ...

Welding without rupturing the plastics, was investigated with special application to stripline connectors of solar cells. Both one sided excited and double sided excited ultrasonic welding techniques were used. The method was shown to be applicable to pla...

When exclusively linear elastic material behavior is required, material and weight saving is made possible by hybridation dependent on load ratio and elongation. If the maximum load limit to be considered, e.g., the total rupture, may be defined as a stat...

Control by means of side jets is particularly promising when the projectile shape is designed for it. In addition to the jet-inflow interaction, the angle of attack of the projectile can also contribute to energy-saving control. Next to control efficiency...