295 Result(s)

Article

Mikroanalyse und chemisch-technische Untersuchungsmethodik

R. Lucas, Fr. Graßner in Mikrochemie (1928)

Article

Spezielle anorganische Mikrochemie

F. Kolle, L. Pincussen, K. E. Schuntermann… in Zeitschrift für analytische Chemie (1930)

Article

Über die Anwendung mikrochemischer Methoden bei der Bestimmung kleinster Mengen chemischer Stoffe (»Spurensuche« nach Emich)

In der vorliegenden Abhandlung wird an Hand einiger ausgewählter Beispiele gezeigt, wie sich bei chemisch-technischen Untersuchungen für die Bestimmung kleinster Mengen chemischer Stoffe (der sogenannten „Spur...

R. Lucas, Fr. Grassner in Mikrochemie (1930)

Article

Zur Stickstoffbestimmung in Düngemitteln

F. Mach, F. Sindlinger, R. Lucas, W. Hirschberger… in Zeitschrift für analytische Chemie (1931)

Article

Stickstoffverbindungen

F. B. Carpenter, H. L. Moxon, R. Lucas, E. M. Emmert… in Zeitschrift für analytische Chemie (1932)

Article

Mikrochemie

Hilde Thurnwald, A. A. Benedetti-Pichler… in Zeitschrift für analytische Chemie (1934)

Article

Sur les tensions de radiation des ondes acoustiques

R. Lucas in Il Nuovo Cimento (1943-1954) (1950)

Article

On the constitution of reserpine

Durch alkalische Hydrolyse wird Reserpin in Reserpinsäure, 3,4,5-Trimethoxybenzoesäure und Methanol gespalten. Das Esteralkaloid liess sich aus diesen Spaltstücken wieder resynthetisieren.

A. Furlenmeier, R. Lucas, H. B. MacPhillamy, J. M. Müller, E. Schlittler in Experientia (1953)

Chapter and Conference Paper

CO/ Dust ratio in the ρ Ophiuchi complex

P. Encrenaz, E. Falgarone, R. Lucas in H II Regions and Related Topics (1975)

Article

Angular distributions of fission and deep inelastic products of the system Ar+Au at 285 MeV

The angular distribution of the heavy products from the interaction of 285 MeV ions⁴⁰Ar on an Au target has been analysed through a large angular range (4°–165° lab angles). The results exhibit two components: th...

R. Lucas, J. Poitou, H. Nifenecker, J. Péter… in Zeitschrift für Physik A Atoms and Nuclei (1977)

Article

Study of the heavy products from⁸⁴Kr+²³⁸U collisions at 522 MeV

Angular distributions and integral cross sections for heavy reaction products from⁸⁴Kr +²³⁸U collisions at 522 MeV were measured using catcher foil techniques and off-line X-ray identification of individual react...

R. Lucas, J. Poitou, J. V. Kratz, G. Wirth in Zeitschrift für Physik A Atoms and Nuclei (1979)

Article

A theoretical model for the charge equilibration in heavy ion collisions

We propose to treat the charge equilibration process as a collective high frequency mode and discuss the implications for the first stages of a heavy ion collision. We show how its dynamics can be treated by m...

H. Hofmann, C. Grégoire, R. Lucas, C. Ngô in Zeitschrift für Physik A Atoms and Nuclei (1979)

Article

Seven new neutron rich nuclides observed in deep inelastic collisions of 340 MeV⁴⁰Ar on²³⁸U

The new nuclides⁵⁴Ti,⁵⁶V,^58–59Cr,⁶¹Mn,^63–64Fe, have been produced through⁴⁰Ar+²³⁸U reactions. The identification combining two (ΔE×E) informations as well as two time of flight measurements was quite unambiguous....

D. Guerrau, J. Galin, B. Gatty, X. Tarrago… in Zeitschrift für Physik A Atoms and Nuclei (1980)

Article

The sub-barrier fusion of⁴⁰Ar with^144,148,154Sm

The cross sections for production of evaporation residues (σ _er) and for fusion-fission (σ _ff) have been measured for⁴⁰Ar+^{144, 148, 154}Sm at sub-barrier energies by observation of x-ray emission from radioactive ...

R. G. Stokstad, W. Reisdorf, K. D. Hildenbrand… in Zeitschrift für Physik A Atoms and Nuclei (1980)

Article

A new spectroscopic facility at millimetre wavelengths

A new millimeter-wave facility is in operation at the Bordeaux Observatory for spectroscopic observations of interstellar and stratospheric molecules. A cooled receiver has been installed on a 2·5m radio teles...

A. Baudry, J. Brillet, J. M. Desbats, J. Lacroix… in Journal of Astrophysics and Astronomy (1980)

Article

A relationship between SNR G109.1 – 1.0 and the molecular cloud of Sh2 – 152?

During a survey of the galactic plane at a frequency 0.610 GHz, Hughes et al.¹ discovered a new supernova remnant (SNR G109.1 – 1.0) which had already been detected as a radio source (CTB109) at 960 MHz by Wilson...

M. Heydari-Malayeri, C. Kahane, R. Lucas in Nature (1981)

Chapter and Conference Paper

Optical and Millimeter Wavelength Study of the Complex Sh2-147/Sh2-153

Sh2-147/Sh2-153 is a vast HII region-molecular cloud complex of dimension 1°.5 located in the Perseus arm at ℓ≈109°. This cloud, mapped for the first time by Israel (1980) in ^{1 2}C0 emission, embodies the HII regi...

M. Heydari-Malayeri, C. Kahane, R. Lucas, G. Testor in Regions of Recent Star Formation (1982)

Article

Investigation of linear momentum transfer on the²⁰Ne^J197Au system at 30 MeV/A

We have deduced the linear momentum transferred from the projectile to the fissioning nucleus in the reaction²⁰Ne+¹⁹⁷Au at 30 MeV/A by measuring the folding angle between the two fission fragments. We found that ...

G. Nebbia, E. Tomasi, C. Ngô, X. S. Chen… in Zeitschrift für Physik A Atoms and Nuclei (1983)

Article

The role of dynamics in the fusion of two heavy nuclei

We use a simple parametrization of the interaction potential between two heavy ions to calculate static fusion barriers and the limit of fusion. A phenomenological dynamical model is presented which allows us ...

T. Suomijärvi, R. Lucas, C. Ngô, E. Tomasi, D. Dalili… in Il Nuovo Cimento A (1965-1970) (1984)

Article

Experimental evidence of highly energy relaxed products in the 35 MeV/u⁸⁴Kr+¹⁹⁷Au reaction

We have measured the mass, the atomic number and the kinetic energy of the fragments emitted between 8 and 23° in the 35 MeV/u Kr+Au reaction. We found few products with the velocity of the projectile and α lo...

D. Dalili, P. Lhenoret, R. Lucas, C. Mazur… in Zeitschrift für Physik A Atoms and Nuclei (1984)