The system appraisal, ranging from the conditioning of fuel elements and waste for reprocessing to their ultimate storage, includes methods from the dropped plans for Wackersdorf Reprocessing Plant (WAW) and the pilot conditioning plant in Gorleben (PKA) ...

The influence of the 3 building materials 'brick', 'reinforced concrete' and 'wood' to animals was tested. A 3-generation study was performed for 14 months in 3 experimental buildings, identical except for the building material. The animals were caged in ...

This feasibility study investigates the requirements to be met by commercial vehicles in urban areas, the fuel cell system, the concept of electric-powered vehicles, the concept of energy storage, the technical concepts of urban buses and distribution veh...

Due to the present experiences gained in pilot projects and by the application of hydrogen in the industry it can be expected that an equivalent safety standard will be achieved for a manifold application of hydrogen as energy carrier as e.g. in the case ...

After the decay of the iodine isotopes the measuring campaigns, in addition to the measuring of soil pollution and pollution of products, concentrated on the way of the cesium isotopes through the food chain, especially in crops, milk, meat and mother's m...

Contents: Part I: Urban transport research program; (A) Classification of research and study assignments; (B) Survey of research projects commissioned since 1967; and Part II: Extended abstract of the study report: Development of a concept for a future bu...

Within this research project the influence of autochthonous mirco-organisms on immobilization and remobilization of Technetium and Selenium was investigated. Both redoxsensitive radionuclides are part of the waste of nuclear fuel (Tc app. 6%). Former inve...

Experimental techniques and evaluation techniques were developed (DYNAMIT, DYNAPLOT) in order to determine dynamic characteristics of the rock in the environment of underground cavities. This includes the determination of possible loosening zones. The res...

The relevant biological component of return sludge consist of so-called 'Schlammflocken' in which different carbon as well as nitrogen mineralizing organisms can be determined. It was our aim to analyze the ratio between the biology activities of nitrogen...

The weld seams of round steel chains have so far been subjected to random destructive tests. Chain defects - especially weld ruptures and brittle fractures - can actually lead to danger for men and machines in mining and to considerable production losses....

The project was carried out successfully. The investigations yielded important findings which can be applied for improving photovoltaic energy conversion systems. They are presented in detail in Sections 2 to 5. (orig./HW)

The influence of heavy metals on the activity of the cambium - i.e., the annual wood increment - is measured in the field and in cultivation experiments. In both cases, the results were as follows: slighter tree rings due to Cd and Zn, correlation of stem...

The present research programme comprises the following tasks: Computer simulation of the probable network reactions to the fluctuating wind energy supply; verification of the model descriptions; optimisation by computer simulation of the utilisation of th...

This BMBF-sponsored project, which was carried out from August 1994 to April 1997, has achieved its goal of characterizing the electromagnetic properties of solar generators of grid-coupled photovoltaic power systems. The focus of the study was on systems...

The report is divided into three sections on account of the problem. The first part is concerned with the evaluation of reflection data with the aid of the reflection tomography. At first it is examined to what extend the surface distribution of the dispe...

The OECD-LOFT Project, in which 12 organizations from 10 OECD countries participated, was an international reactor safety program organized through NEA of OECD. It used the LOFT (Loss-of Fluid Test) nuclear test facility at the Idaho Engineering National ...

For the use of renewable energy sources a photovoltaic power system has been installed at the 132 m long south facade of the new two-story training center of the Hamburgische Electricitaetswerke AG. A solar generator with a total output of 16.8 kWp was in...

Aim of this project is measuring and modelling wake effects in wind farms depending on wind speed and direction. The characteristics of the mean power output (10-minute averages) was investigated as well as short time power fluctuations (1-second averages...

The project intended to continue the development and long-time testing of the diagnosis and trend system. Additionally a 'Quasi-Online-Operation' has been realized to ensure a fast application in practice. The functional abilities have been demonstrated a...

The aim of this project was to determine physico-chemical parameters which control mass transport rates between the interstitial air and the droplet phase of clouds and fog. For this purpose, a Jet Technique was technically and theoretically improved. The...

High precision atmospheric (sup 14)CO(sub 2) observations at 6 globally distributed background stations have been continued, and extended by two new observational sites in the tropics and in the subantarctic ocean. This unique data set of continuous (sup ...

A free-steered transport system was developed which can be used for passenger, materials and, with restrictions, debris transport around the shaft (distance max. 4 km). The system includes all-wheel driven or center pivot steered passenger busses with max...

For proving the structural safety of a radwaste repository in salt rock formations, a prognostic model of the rock mechanics is to be established for the operation phases of waste emplacement and post-sealing operation. The project work reported was to co...

In the event of a severe reactor accident involving core meltdown, sumps containing fission iodine can form in the annulus and in the auxiliary building of a PWR. Iodine revolatilization from these sumps has to be considered. The report contains results o...

The distribution and concentraion of phosphines in the sediments of the Elbe river were determined by selective preparation and analysis. The concentration of phosphines in one kilogram wet sediment was in the range of 0.1 to 57 n g with the bulking, anae...

Aim: Aim of the study is to show up new fields of industrial application for thermal solar energy. Procedure: By analysis statistical data and special references the process heat demand and the temperature levels of the usual industrial processes have bee...

The most significant results of the investigations carried out with the program system ANSALT are summarized as follows: (1) Non-steady temperature field computations can be done in the salt rock eith sufficient accuracy. (2) The stress-strain rate law de...

In this German-French cooperation project a comparison between the high speed Intercity Express (ICE), the high speed train TGV (train a grande vitesse) and the maglev rapid transit system Transrapid is drawn. Investment costs for infrastructure and rail ...

Methanol-solable as well as cell-wall-bound secondary metabolites in spruce, pine, and dwarf pine growing on Wank were found to differ in dependence of site elevation. All-year monitoring of various metabolites showed that trees of elevation zone IV diffe...

The study gives a survey on the training methods for the operating personnel of reactors in operation or under construction in the FRG and compares them with the training and testing methods of other countries, in particular the USA. (RW/AK)

The SPEOS concept envisages heat storage in an unconfined aquifer. The SPEOS system at Dorigny comprises two sandy aquifers separated by a low previous layer of sandy clay, and of two levels of 6 horizontal drains 20 cm in diameter and 25 m long, radiatin...

Based on the study of the ISP about the inefficiency of combined heat and power generation, especially block-type thermal power stations, a new study has been carried out by the Bremer Energy Institute BEI. In this respect the energetic, ecological and ov...

Kurzfassung Der Erfolg von Grundwassersanierungsma�nahmen kann stark beeintr�chtigt werden, wenn abstromig Schadstoffe durch Desorption aus Sedimenten freigesetzt werden. Zur Quantifizierung derartiger Vorg�nge wird ein prozessbasiertes Modell zur Simulation des durch Sorption und Desorption beeinflussten Schadstofftransports im Grundwasser ...

The quasi-binary eutectic systems: NiAl-Cr, NiAl-(MoRe) represent two phase alloys whose structures consist of the inter-metallic NiAl(X) mixed crystal matrix and a finely divided mixed crystal phase with highly symmetrical cubic or hexagonal grid structu...

... Entstehung von Nebel und Wolken", Abschlussbericht, Bundesminister f.ir Forschung und Technologie, Forschungsvorhaben ...

Some research activities discussed are energy systems and strategies; nuclear and nonnuclear energy conversion; nuclear safety; and waste disposal. Materials for power plants, materials characterization and analysis; radioisotopes and tracer compounds; te...

Kurzfassung Im Abstrom der ?ehemaligen Abfalldeponie Osterhofen`` wurden Konzentrationen an Ammonium festgestellt, die deutlich �ber dem in Baden-W�rttemberg geltenden Pr�fwert liegen. Im Rahmen detaillierter Natural Attenuation (NA) Untersuchungen wurde �berpr�ft, inwieweit die Nutzung mikrobiologischer Abbau- und R�ckhalteprozesse des ...

Corrosion fatigue tests were performed in 0,01 M NaCl pH 7/pH 3 and 22% NaCl pH 7/pH 3 solution. The temperature were 80deg C and 150deg C. Following stress parameters were used: a mean stress with 250 MPa and some sample tests with 350 MPa, a frequency o...

Kurzfassung Numerische Modelle spielen bei der Bewertung von Natural-Attenuation-Prozessen an Feldstandorten eine bedeutende Rolle. Daher ist es wichtig diese mit Felddaten zu �berpr�fen und gegebenenfalls erneut zu kalibrieren. Die Modellierung des Transports eines konservativen Tracers auf der Grundlage von Felddaten ergab eine zuverl�ssigere ...

Kurzfassung Im Rahmen der Etablierung des Standortes Zeitz (Sachsen-Anhalt) als Referenztestfeld zur Implementierung des Natural-Attenuation-Ansatzes, haben wir Grundwasser auf seine F�higkeit untersucht, eine Dioxin-�hnliche Wirkung hervorzurufen. Die Dioxin-�hnliche Wirkung ist die Arylhydrocarbon Rezeptor-vermittelte Induktion ...

The vacuum mattresses on the market were tested by the service components for their medical-oriented application.

... Accession Number : ADA045521. Title : Testing Vacuum Mattresses, Final Report (Erprobung von Vakuum-Matratzen, Abschlussbericht),. ...

... Phase*Drops*Flotation of Drops*Drop Migration*Thermomigration*Marangoni Movement of ... In TEXUS 11/12 Abschlussbericht 1985, German Publication, p. 56. ...

Kurzfassung Im Abstrom des ?ehemaligen Gaswerkes Kehl`` wurden Konzentrationen an PAK festgestellt, die �ber dem geltenden Pr�fwert liegen. Im Rahmen detaillierter Natural Attenuation-Untersuchungen wurde �berpr�ft, inwieweit die Nutzung mikrobiologischer Abbau- und R�ckhalteprozesse der PAK eine geeignete Entscheidungsoption f�r den Standort ...

Language: French ...

Language: French ...

Kurzfassung Mikrobiell reduzierbares Eisen(III) im Aquifer kann als Elektronenakzeptor von gro�er Bedeutung f�r Natural Attenuation (NA) von aromatischen Kohlenwasserstoffen sein und bildet den Hauptbestandteil der sediment�ren Oxidationskapazit�t (OXC) des Aquifers. Untersuchungsgegenstand war der Vergleich traditioneller, nasschemischer Methoden ...

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...

This report gives a general account of the research project 'light-transmitting thermal insulation' commissioned by the BMFT. In contrast to light-tight insulation materials transparent thermal insulation materials (TWD) are mainly characterized by two pr...

This study was aimed at evaluating courses of gestation and parturitions in the light of the Chernobyl reactor accident and at comparing the results obtained with those from a study carried out in 1981/82 on factors assumed to have a role in pre-term deli...

A study has been performed in order to investigate to what extent small and medium sized enterprises (SME) exploit the value of technical information obtained in patents for their innovation projects and what barriers of access to this information pool ex...

According to the survey 90% of the losses of CFC's are incurred by emissions, about 5% are contained in poisonous wastes which are treated separately, 1-2% get into the waste water. 60-80% of the CFC's which contaminate waste water are stripped again usua...

Kalorimeter : : : : : : : : : : : : 21 3.3.4 Die Myonkammern : : : : : : : : : : : : : : : : : : : : : : 21 3 Fehlidentifikation 7% bei � 98% e \\Gamma Effizienz Elektromagnetisches Kalorimeter Energieaufl�osung : \\DeltaE=E � 1:2mm (innen) \\Deltax; y � 4mm (Mitte) \\Deltax; y � 10mm (au�en) e/Hadron--Trennung (Kalorimeter

tracker. Key words: Solar powered UAV, Solar Energy, Solar Airplane, Sustainable Flight, Sky-Sailor, MPPT solaire, Vol continu, Sky-Sailor, MPPT, M�thodologie de design conceptuel vi #12;Kurzfassung Diese, Solarflugzeug, Ununterbrochener Flug, Sky-Sailor, MPPT, Konzeptuelle Auslegungsmeth- ode viii #12;

The report is the summary of an estimation of mass and composition of non-methane volatile organic compounds (NMVOC) in Austria. For 1987 emissions of 517,000 tons per year (t/yr) were calculated, which compares to an emission density of 6.12 grams per sq...