Results 51 to 60 of about 2,395 (142)

A study of beryllium and beryllium-lithium complexes in single crystal silicon [PDF]

open access: yes
When beryllium is thermally diffused into silicon, it gives rise to acceptor levels 191 MeV and 145 meV above the valence band. Quenching and annealing studies indicate that the 145-MeV level is due to a more complex beryllium configuration than the 191 ...
Crouch, R. K.   +2 more
core   +1 more source

The study of single crystals for space processing and the effect of zero gravity [PDF]

open access: yes
A study was undertaken to analyze different growth techniques affected by a space environment. Literature on crystal growth from melt, vapor phase and float zone was reviewed and the physical phenomena important for crystal growth in zero-gravity ...
Lal, R. B.
core   +1 more source

Phraseologie und Fremdsprachenlernen. Zur Problematik einer angemessenen phraseodidaktischen Umsetzung [PDF]

open access: yes, 2006
In this paper the author strives for the more intensive inclusion of phraseological learning content in the teaching of foreign languages. Arguments, due to which at all levels of teaching languages should systematically provide for acquiring and ...
Jesenšek, Vida
core   +3 more sources

LSSA large area silicon sheet task continuous Czochralski process development [PDF]

open access: yes
A Czochralski crystal growing furnace was converted to a continuous growth facility by installation of a premelter to provide molten silicon flow into the primary crucible.
Rea, S. N.
core   +1 more source

Boron-oxygen defect in Czochralski-silicon co-doped with gallium and boron

open access: yes, 2016
We study the boron-oxygen defect in Si co-doped with gallium and boron with the hole density 10 times higher than the boron concentration. Instead of the linear dependence of the defect density on the hole density observed in boron and phosphorus ...
Cuevas, A.   +7 more
core   +1 more source

Odpowiedź na list Dr. Pawła E. Tomaszewskiego na temat badań życiorysu Jana Czochralskiego

open access: yesStudia Historiae Scientiarum, 2016
Autor udziela odpowiedzi na list Pana dr. Pawła E. Tomaszewskiego, będącego kolejnym (trzecim) etapem polemiki na temat faktów z życia Jana Czochralskiego i różnic w sposobie ich przedstawiania przez amatora i profesjonalnego historyka.
Michał Kokowski
doaj  

Occupation as social practice and ambiguous space: the lives of Ludwik Hirszfeld and Jan Czochralski in Warsaw 1939-1944 [PDF]

open access: yes, 2022
This article evaluates the situation of two renowned scientists in Poland, namely the microbiologist and serologist Ludwik Hirszfeld (1884–1954), and the metallurgist Jan Czochralski (1885–1953), during the time of the German occupation from 1939–45. Both scientists strove to continue their scientific work even under the conditions of occupation but ...
openaire  

Determination of a Definition of Solar Grade Silicon [PDF]

open access: yes
A definition of solar grade silicon was determined by investigating the singular and the combined effect of the impurities usually found in metallurgical grade silicon on solar cell device performance.
Gutsche, H. W., Hill, D. E.
core   +1 more source

Spezifische Probleme beim Übersetzen von Phraseologismen am Beispiel des Kinderromans Emil und die Detektive von Erich Kästner [PDF]

open access: yes, 2015
Specific problems of collocations translation illustrated on examples from children's novel Emil and the Detectives by Erich Kästner. The paper presents specific problems of translating collocations based on examples from children's novel Emil and ...
Ślawski, Jarosław
core   +2 more sources

Laue gamma-ray lenses for space astrophysics:status and prospects [PDF]

open access: yes, 2010
We review feasibility studies, technological developments and astrophysical prospects for Laue lenses devoted to hard X-/gamma-ray astronomy observations.Comment: 26 pages, 24 figures. Published in a special issue (Volume 2010 (2010), Article ID 215375,
Frontera, Filippo, Von Ballmoos, Peter
core   +2 more sources

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