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Addressed to both students as a learning text and
scientists/engineers as a reference, this book discusses the
physics and applications of quantum-well infrared photodetectors
(QWIPs). It is assumed that the reader has a basic background in
quantum mechanics, solid-state physics, and semiconductor devices.
To make this book as widely accessible as possible, the treatment
and presentation of the materials is simple and straightforward.
The topics for the book were chosen by the following criteria: they
must be well-established and understood; and they should have been,
or potentially will be, used in practical applications. The
monograph discusses most aspects relevant for the field but omits,
at the same time, detailed discussions of specialized topics such
as the valence-band quantum wells.
Addressed to both students as a learning text and
scientists/engineers as a reference, this book discusses the
physics and applications of quantum-well infrared photodetectors
(QWIPs). It is assumed that the reader has a basic background in
quantum mechanics, solid-state physics, and semiconductor devices.
To make this book as widely accessible as possible, the treatment
and presentation of the materials is simple and straightforward.
The topics for the book were chosen by the following criteria: they
must be well-established and understood; and they should have been,
or potentially will be, used in practical applications. The
monograph discusses most aspects relevant for the field but omits,
at the same time, detailed discussions of specialized topics such
as the valence-band quantum wells.
Neun Jahre nach dem Buch "Kalenderblatter" sind die "Lebensmomente"
mein zweites Buch. Es besteht wieder aus einem Mix von Erzahlungen,
Gedichten und Geschichten, aus Anmerkungen, Feststellungen und
Betrachtungen sowie aus kurzen Beschreibungen bereister Lander. Neu
sind die kleinen Geschichten in Mundart, die als Double auch in
hochdeutsch zu lesen sind und die von lustigen Begebenheiten aus
fruherer Zeit erzahlen. Auch inspirierten mich wieder die
Stimmungen und Eigenheiten der Jahreszeiten, die sich in loser
Folge durch das Buch ziehen. So abwechslungsreich wie die
Naturereignisse und das Leben, so bunt und vielfaltig ist der
Inhalt dieses Buches, aus dem man sich zu jeder Zeit und uberall
einige Momente "pflucken" kann. Harald Schneider
Frankfurt/M., Berlin, Bern, Bruxelles, New York, Oxford, Wien. The
present study is a critical survey of dialectological and
sociolinguistic studies, and should contribute towards answering
the question whether dialect areas such as Boston and Eastern New
England are converging or diverging. The study's theoretical
framework is based on both Lexical Diffusion and Neogrammarian
positions. The pivotal Northern Cities Shift, a prominent and
on-going vowel rotation pattern in the United States, the so-called
« third dialect area, and « Boston English are accommodated in the
concepts of Lexical Diffusion and Neogrammarian viewpoints. The
focal part is an empirical study investigating salient
Bostonianisms (the short /a/, the short /o/, and the postvocalic
/r/). Apart from theoretical considerations, the steps to run the
VARBRUL program are explained and commented upon. Finally, the
results of the study are discussed as they relate to social,
regional and ethnic variations in North America. Contents: A survey
of dialectological and sociolinguistic research on American English
- Current theoretical approaches to sound change - Aspects of
language variation - Socio-historical features of New England and
Boston - From 17th century New England to 20th century Boston
English.
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