By means of the oscillation analysis, hydrogen absorption of a steel material is studied to avoid material damages. For the experiments the steels 50 CrV4 and 34 CrMo4 are used. The hydrogen loading produces selenium acid by cathodic polarization in an el...
National Technical Information Service (NTIS)
Abh�ngigkeit der Polarisation der Wasserstofflinien beim Sto� von H auf He und D auf He von der Teilchengeschwindigkeit. Die Analogie zwischen Elektronensto�- und Kanalstrahlleuchten. Die Druckabh�ngigkeit der Polarisation des Kanalstrahlleuchtens. Die Polarisation der Wasserstofflinien beim Sto� von He auf H2 und D2. Die Frage der Abh�ngigkeit ...
NASA Astrophysics Data System (ADS)
wirkenden Platin- oberfl�che statt; als Produkt entsteht Wasser. Die Messun- gen fanden im Ultrahoch- vakuum Reaktions- front bei der Wasserstoff- oxidation auf einer Platin- oberfl�che. Die Front erscheint als heller
E-print Network
In this work the results of surface analytical investigations of the alloy ZrCo used for hydrogen storage as well as of the interaction of the alloy with hydrogen and various contamination gases present in a nuclear fusion reactor will be presented and di...
This work investigates the pressure and temperature dependence of the reaction CH(X(sup 2)(Pi))+ H(sub 2). The parameters obtained are in good agreement with the data from literature. The simulation of the temperature dependence carried through with the a...
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 ...
The velocity constants of the reaction between deuterium atoms and vibration-excited hydrogen molecules were investigated. The measurements were performed in a thermostatically controllable flow reactor, coupled with an atomic line resonance absorption de...
Es kann ohne Zweifel behauptet werden, dass schaltbare Spiegel eine neue Klasse von Materialien bilden, die sowohl technologisch [17] als auch rein wissenschaftlich sehr interessant M�glichkeiten er�ffnen. Der mikroskopische Mechanismus, der dem spektakul�ren optischen Schalteffekt zugrunde liegt, ist jedoch noch nicht eindeutig identifiziert, wenngleich Elektronenkorrelationseffekt sicher ...
... Tak-Ho Sun, "Einfluss von Legierungszusatzen auf die Wasserstoff diffusion im Eisen und Beitrag zurr. System Eisen- Wasserstoff" Archiv fur das ...
DTIC Science & Technology
... Descriptors : *ATOMIC SPECTROSCOPY, *MOLECULAR ... PROCESSING, SPECTROMETRY, SPECTROSCOPY, SYMPOSIA, ABSORPTION ...
After some recalls on the physics of neutron resonance absorption during their slowing down, this paper presents the main features of the theoretical developments performed by the french school of reactor physics: the effective reaction rate method so cal...
has been designed to monitor the C02 rate in enriched greenhouses. Introduction Les capteurs h fibres des problAmes d'adaptation. En effet la faiblesse de l'intensitA des raies d'absorption du gaz effectuer des mul- tiplexages optiques. En effet dans les serres agricoles oh la tempArature et l
[Im Eingange zu dieser Arbeit bemerkt der Verf., dass er bereits am 31. M�rz 1862 der Pariser Akademie eine Notiz von derselben �bergeben habe, dass er aber durch eine �hnliche Untersuchung des Hrn. De la Rive, von der er Kunde erlangt, veranlasst worden sey, das Erscheinen dieser abzuwarten, bevor er die seinige ausf�hrlich vor�ffentliche. Seitdem habe nun Hr. de la ...
The spin-polarization of the optically pumped Na-groundstate is investigated in presence of the stable He- and H2-isotopes. The following disorientation cross sections are derived from the pressure dependence of the relaxation rate: ?=(16.2�2.0) � 10?26 cm2 for He3 ?=(2.4�0.5) � 10?26 cm2 for He4 ?=(3.9�1.5) � 10?26 cm2 for H2 ?=(2.3�1.0) � 10?26 cm2 for D2. These values can be ...
calculate an absorption curve such as that shownin figure 3 for any ...... Proprietes photometrlques des contrees desertlques sur la planBte ...
NASA Website
... J. Brian A. MITCHELL Physique des Atomes, Lasers, Molecules et Surfaces (PALMS), Université de Rennes I, 35042 Rennes cedex, France ...
lumiere par les gaz et 1'absorption atmospheric. Academic des Sciences - Compt. Rend., vol. 228, 1949, pp. 1485-1486. ...
... Effets de Matrice sur le Dosage des Traces ... Matrix effects in atomic absorption analysis are ... each of these phenomena permits determination of the ...
... Contribution a la Chimie des Neiges de l'Antarctique Determination d'Dlements Traces au Niveau PPB Par Spectrometrie d'Absorption Atomique),. ...
... H. fEQUIVALENT MECHANIQUE DE LA CHALEUR APPAIREILS AL4 ... P. and Parodi, M. SPECTRES D'ABSORPTION DES MONOSUBSTITUES DU ...
Introduction Position du probl�me Le rayonnement des �toiles Ordre de grandeur des param�tres caract�ristiques - d'une atmosph�re stellaire Le champ de rayonnement et son interaction avec la mati�re Conditions locales L'�quilibre thermodynamique local Excitation, ionisation, dissociation Absorption, diffusion Probl�mes ...
217. OPTICAL ABSORPTION, PHOTOCONDUCTIVITY AND p-n JUNCTIONS IN CADMIUM TELLURIDE By B. M. VUL, V, Academy of Sciences, Moscow, USSR. R�sum�. 2014 L'analyse des donn�es exp�rimentales sur l'absorption consid�rable de l'absorption par exciton et du processus de la diffusion des ...
A spectroscopic study of the 2p-3d absorption transitions in germanium is reported. Radiative transition and autoionization probabilities were calculated by a simulation code, as well as the wavelengths of the transitions. The absorption coefficients as a...
Jul 27, 2009 ... Skip Navigation (press 2) ... auf- und abbaues von wasserstoff- und sauerstoffbelegungen an platin mit einer neuen instationaren methode< ...
Membran-Einheit ?uer Wasserstoff/Brom Zellen", West German patent No. ... Translation of "Verfahren zur Herstellung einer Elektroden Membran- ...
A bibliographic study of high diffusion composite materials is presented with regard to static and dynamic behavior under shock. The dynamic behavior under vibration conditions was investigated by considering the time evolution of the dynamic modulus of e...
The composite 4 (pi) (gamma) detector STACK is made of a pile of Ge Crystals in which the 2 circular surfaces are active, one implanted with Boron, the other diffused with Lithium and introducing a dead zone. The goal of this study is to research the dead...
The absorption spectra for certain steroid and catechol derivatives in the range from 185-300 mu. in the vapor state is compared to the absorption spectra of these compounds observed in solvents. It is pointed out that better resolution and higher sensiti...
In the present dissertation the construction and application of a mobile laser system for the remote detection of sulfur dioxide and ozone in the lower troposphere are described. The lidar uses the differential absorption and scattering technique. It cont...
a much broader absorption profile than a beam. Since each laser mode interacts only with a narrow laser sur le profil d'absorption Doppler des atomes d'h�lium. Cette am�lioration peut �tre expliqu�e par the laser power over the Doppler absorption profile of the metastable helium atoms can enhance
A program was developed to evaluate the emission and absorption plasma coefficient variations as a function of the density, temperature and the atomic number of the specimen. The treatment is simplified because of the reduced number of characteristic freq...
Lautstarker Applaus erhob sich im Salon III/IV des Marriott-Hotels von Crystal City im amerikanischen Bundesstaat Virginia. In dem �berf�llten Konferenzraum starrten alle wie gebannt auf die Leinwand, wo nicht mehr zu sehen war als ein n�chternes Diagramm aus zahlreichen Punkten und einer geschwungenen Kurve. Nureine eigenartige Personengruppe konnte sich davon zu ...
Nous reportons des mesures d'absorption induite, dans le domaine spectral 360 nm-440 nm, dans les fibres germanosilicates hydrog�n�es ou non. Pour cela, nous avons mis au point une nouvelle technique de mesure de l'absorption induite mettant en �vidence, contrairement � la technique de mesure classique, les processus primaires ...
... diverses conditions environnementales difficiles, dont l'exposition à la chaleur et au ... sur la détection des cibles, sauf en cas d'absorption de caféine ...
Preliminary experiments using a long pulse laser generated X-ray source to backlight a short pulse laser heated thin foil have been performed at the Laboratoire pour lutilisation des Lasers Intenses (LULI) at Ecole Polytechnique in France. In these experi...
12. de Vaucouleur, G.: Optique Moleculaire - sur la diffusion moleculaire de la lumiere par les gaz et l'absorption atmospheric. Academie des Sciences - Compt. ...
Language: French ...
NBII National Biological Information Infrastructure
In the sixties, a fast photochromic system based on the triplet-triplet absorptions and the decline of the triplet state of aromatic molecules in a solid solution was perfected, to prevent the dimming due to the intense light flash produced in a nuclear e...
1453 �TUDE COMPARATIVE DES VIBRATIONS DE BASSES FR�QUENCES DE LA 03B2-HYDROQUINONE PAR INFRAROUGE 1976, accept� le 23 aofit 1976Jj R�sum�. 2014 La diffusion des neutrons lents par l'hydroquinone 03B2, Classification Physics Abstracts 7.340 - 8.822 1. Introduction. - Le spectre d'absorption infra- rouge de l'hydroquinone
seules mesures connues sont celles de Pa- rodi [1] qui determina a temperature ordinaire le maximum d. Frdquenees fondamentales a temperature ordinaire. - Les minima de transmission que nous avons mesures plus grands que ceux mesur�s (sur des poudres comprim�es). Des mesures plus r�centes montrent que pour
Reports of the deliberate destruction of the environment have become increasingly alarming, and the existing fossil and nuclear energy systems are partly responsible for this development. For the first time in the history of energy supply starting from th...
The report describes the experience made with the practical operation of a LH(sub 2) filling station for hydrogen-fuelled vehicles. (HW)
Adsorption equilibria for helium, hydrogen, and neon on carbon dioxide layers and the effects of carbon dioxide condensation conditions on the adsorption process are studied. The dependence of gas adsorption temperatures in effective deposition is describ...
The goal of this work is the study in (sup 3)He of the mechanisms involved in the absorption of photons in the (Delta)(1232) resonance region. One, two, or three nucleons participate in this absorption depending upon the specific reaction induced: pion ph...
The evolution of the optical depth and its deduced density when the thickness of the absorbent layer increases are studied. A saturation effect of the apparent optical depth of the K(alpha) transitions is shown to possibly perturb the integrated density m...
The composition of the impurities contained in Antarctic snow has yet to be established. This work is based primarily on the study of geographical variations and on the establishment of a fallout table, backed up by some observations as to the identificat...
Transport of enterostatin (VPDPR) across rat jejunum was investigated using Grass-Sweetana diffusion chambers. The rate of absorption of enterostatin and its metabolites were studied in absence and in presence of diisopropylfluorophosphate (DFP), a serine protease inhibitor. An extensive hydrolysis of enterostatin was observed during incubation with brush border membranes and ...
PubMed
A calculation for double scattering and absorption corrections in fast neutron scattering experiments using Monte-Carlo method is given. Application to cylindrical target is presented in FORTRAN syMbolic language. (auth)
Energy Citations Database
The absorption of cesium-137 and strontium-90 by vines, permanent pasture, potatoes, green vegetables, tomatoes, onions, cabbage, and beans in France in 1960 is presented. The strontium coefficient has varied very little from one year to the next and that of cesium has slightly diminished. The values obtained suggest that the concentrations in irrigation water should ...
Laser absorption spectroscopy is an appreciated diagnostic in plasma physics to measure atomic and ionic densities. We used it here more specifically on metallic plasmas. Firstly, a uranium plasma was created in a hollow cathode. 17 levels of U.I and U.II...
The object of the report was to develop methods to study the routes by which chemical substances penetrate the skin, to develop human skin models (skin cell cultures, reconstituted skin) and to use model molecules to validate the study of the absorption a...
Influence of structure defects on electronic structure of ceramics is studied by X-ray absorption spectroscopy, photoelectron spectroscopy and state density calculations with the tight-binding model. Are investigated: Influence of oxygen stoichiometry on ...
Nous avons vu les possibilites d'analyse par particules chargees des aerosols recueillis sur des filtres de type MILLIPORE. La meme technique a ete utilisee pour des filtres ayant servi a la filtration de l'eau du fleuve Saint-laurent. Deux techniques ont ete utilisees: (1) FAST (Forward Alpha Scattering Technique): pour analyser ...
