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High Energy Electron Beam Irradiation of Water, Wastewater and
Sludge; C.N. Kurucz, et al.. Introduction. Electron Beam
Technology. Aqueous Chemistry of High Energy Electrons.
Disinfection of Wastewater Effluents. Irradiation of Toxic Organic
Chemical in Aqueous Solutions. Gamma Irradiation Versus Electron
Beam Irradiation. XRay Photon Spectroscopy Calculations; J.E.
Fernandez, V.G. Molinari. Introduction. Relevant Aspects of Photon
Interactions with Matter. Time-Independent Photon Transport
Equation. Solution in a Half Space: Multiple Scattering Effects.
Multiple Scattering Effects in the Characteristic Lines. Multiple
Scattering of the Rayleigh and Compton Effects. Monte Carlo Methods
in Advanced Computer Architectures; W.R. Martin. Introduction.
Advanced Computer Architectures. Monte Carlo on Advanced Computer
Architectures. Monte Carlo on Parallel Architectures. The
WienerHermite Functional Method of Representing Random Noise and
its Application to Point Reactor Kinetics Driven by Random
Reactivity Fluctuations; K. Behringer. The WeinerHermite Functional
Method. Application to Point Reactor Kinetics Driven by Random
Reactivity Fluctuations. Index.
Some countries have moved beyond the design and operation of
nuclear electricity generating systems to confronting the issue of
nuclear waste disposal, whole others are still committed to further
nuclear facility construction. Volume 24 chronicles these key
developments and examines nuclear reactor accidents at Chernobyl,
Bhopal, and TMI. The text also analyzes current international
knowledge of neutron interactions; deterministic methods based on
mean values for assessing radiation distributions; practical
applications of the TIBERE models to explicit computation of
leakage terms in realistic reactor geometry; and a technique to
deal with the issues of finance, risk assessment, and public
perception.
Some countries have moved beyond the design and operation of
nuclear electricity generating systems to confronting the issue of
nuclear waste disposal, whole others are still committed to further
nuclear facility construction. Volume 24 chronicles these key
developments and examines nuclear reactor accidents at Chernobyl,
Bhopal, and TMI. The text also analyzes current international
knowledge of neutron interactions; deterministic methods based on
mean values for assessing radiation distributions; practical
applications of the TIBERE models to explicit computation of
leakage terms in realistic reactor geometry; and a technique to
deal with the issues of finance, risk assessment, and public
perception.
Since its initiation in 1962, this series has presented
authoritative reviews of the most important developments in nuclear
science and engineering, from both theoretical and applied
perspectives. In addition, many original contributions are
included.
The present review volume not only covers a wide range of topics
pertinent to nuclear science and technology, but has attracted a
distinguished international authorship, for which the editors are
grateful. The opening review by Drs. Janet Tawn and Richard
Wakeford addresses the difficult matter of questioning sci- tific
hypotheses in a court of law. The United Kingdom experienced a
substantial nuclear accident in the 1950s in the form of the
Windscale Pile fire. This in itself had both good and bad
consequences; the setting up of a licensing authority to ensure
nuclear safety was one, the understandable public sentiment
concerning nuclear power (despite the fire occurring in a weapons
pile) the other. Windscale today is subsumed in the reprocessing
plant at Sellafield operated by British Nuclear Fuels plc and it
was inevitable perhaps that when an excess cluster of childhood
leukaemia was observed in the nearby village of Seascale that
public concern should be promoted by the media, leading to the
hearing of a claim of compensation brought on behalf of two of the
families of BNFLs workers who had suffered that loss. The review
article demonstrates the complexity of und- standing such a claim
against the statistical fluctuations inherent and shows how the
courts were persuaded of the need to propose a biological mechanism
if responsibility were to be held. The Company were undoubtedly
relieved by the finding.
The present review volume not only covers a wide range of topics
pertinent to nuclear science and technology, but has attracted a
distinguished international authorship, for which the editors are
grateful. The opening review by Drs. Janet Tawn and Richard
Wakeford addresses the difficult matter of questioning sci- tific
hypotheses in a court of law. The United Kingdom experienced a
substantial nuclear accident in the 1950s in the form of the
Windscale Pile fire. This in itself had both good and bad
consequences; the setting up of a licensing authority to ensure
nuclear safety was one, the understandable public sentiment
concerning nuclear power (despite the fire occurring in a weapons
pile) the other. Windscale today is subsumed in the reprocessing
plant at Sellafield operated by British Nuclear Fuels plc and it
was inevitable perhaps that when an excess cluster of childhood
leukaemia was observed in the nearby village of Seascale that
public concern should be promoted by the media, leading to the
hearing of a claim of compensation brought on behalf of two of the
families of BNFLs workers who had suffered that loss. The review
article demonstrates the complexity of und- standing such a claim
against the statistical fluctuations inherent and shows how the
courts were persuaded of the need to propose a biological mechanism
if responsibility were to be held. The Company were undoubtedly
relieved by the finding.
Since its initiation in 1962, this series has presented
authoritative reviews of the most important developments in nuclear
science and engineering, from both theoretical and applied
perspectives. In addition, many original contributions are
included.
Some countries have moved beyond the design and operation of
nuclear electricity generating systems to confronting the issue of
nuclear waste disposal, whole others are still committed to further
nuclear facility construction. Volume 24 chronicles these key
developments and examines nuclear reactor accidents at Chernobyl,
Bhopal, and TMI. The text also analyzes current international
knowledge of neutron interactions; deterministic methods based on
mean values for assessing radiation distributions; practical
applications of the TIBERE models to explicit computation of
leakage terms in realistic reactor geometry; and a technique to
deal with the issues of finance, risk assessment, and public
perception.
The editors have pleasure in presenting this volume of our review
series. We have specialised in three areas: perturbation Monte
Carlo, non-linear kinetics and the transfer of radioactive fluids
in rocks. These contributions are linked, however, in the demands
for optimising complex systems that are a feature of the scale of
nuclear power production. Kuniharu Kishida's account of Japanese
thinking in the application of modern non-linear theory to reactor
kinetics and control comes at a time when the community of control
scholars is seeking how to apply the new ideas that have led to the
prominence of chaos theory to our field. Pr- lems of maintenance in
power reactors are as severe as ever and must be solved for
credibility to characterise any new program. As much as 30% of
unanticipated down-time, for example, is due to the failure of
motor op- ated valves. We need a theory to provide for preventive
maintenance. This in turn depends heavily on on-line monitoring to
anticipate failure as well as expert systems to schedule preventive
treatment. Noise theory with its promise of on-line interpretation
of information from inchoate breakdown is the key. It is all too
likely that the need to deal with major departures makes a
non-linear theory of noise essential. We can be grateful that P-
fessor Kishida has provided us with such a consistent account.
Dur previous volume 14 was devoted to an exposition of the topics
of sensitivity analysis and uncertainty theory with its development
and application in nuclear reactor physics at the heart of the
discussion. In this volume, we return to our customary format as a
selection of topics of current interest, authored by those working
in the field. These topics range from the theoretical underpinnings
of the (linear) Boltzmann transport equation to a resume of our ex
pectations in what still may be thought of as twenty-first century
technology, the world's fusion reactor program. In the first
article of this volume, we have Protopop escu's analysis of the
structure of the Boltzmann equation and its solutions for energy
and space-dependent problems of an eigenvalue nature. There long
has been a curious "folk history" effect in this area~ Wigner and
Weinberg could de scribe it as "what was generally known was
generally untrue". This account of the Boltzmann equation surely
will show that a rigorous basis for our expectations of certain
solutions can be well-founded on analysis. Ely Gelbard's review of
the methods of determining diffusion-type parameters in complex
geometries where simple diffusion theory would be welcome has
required just as much rigor to determine how such modeling can be
made accurate, although to a more immediate and practical purpose.
The two articles can be seen as interesting contrasts, facets of
the same underlying problem showing apparently different aspects of
the same central core.
The Editors take pleasure in presenting Volume 13 of this annual
review series, consisting, as usual, of author itative reviews of
timely developments in the technical fields of nuclear engineering,
science, and teechnology. No one in the community we try to serve
in a post Harrisburg era will need convincing of the relevance of
the first two items to be mentioned from the volume. Instru
mentation for two-phase flow measurements, by Banerjee and Lahey,
has applicability in the engineering research labor atory and to
power reactors; the U. S. LWR still remains the dominant power
reactor type and seems likely to retain its hold if only through
the capital of existing plants this century. Messrs. Bohm, Closs,
and Kuhn, however, have a longer time scale to respect as they view
for us the prospects of nuclear waste disposal from a European
viewpoint. They bring out nicely the political aspects that cannot
be divorced from technical considerations in this area, or in the
more militant terms of confrontation, in this arena, perhaps. We
are pleased to carry in this volume two complemen tary papers on
mathematical methods in nuclear engineering."
The Editors take pleasure in presenting a further vol ume in their
Annual Review Series. The present volume con tains six papers that
may be said to span from the theory of design to the practice of
operation of modern nuclear power stations, therefore concentrating
on nuclear energy as a source of electrical power. Starting with
the most mathem atical, and proceeding in the direction of
technology, we have the Chudley and Brough account of a new
interpretation of (linear) Boltzmann transport theory in terms of
the characteristic or ray approach. This seems to be new in
application here, but of course the method is the child of many
classical studies in the solution of partial differen tial
equations and proves to remarkably well-suited to modern computers
and their numerical bases. We might put the article by Dickson and
Doncals on the design of heterogeneous cores next, with its
significance for fast reactors of the future. The various "central
worth" discrepancies, with their implication for safety and relia
bility founded on, inter alia, the Doppler effect, have made this a
major area for resolution: to see that we can develop design
methods and codes that will reconcile theory and exper, . . . iment
to the point at which theoretical designs could be accepted for
building without the need for a full-scale mock up, as had to be
done in the 1950's for the light water re actors."
The Editors have pleasure in presenting a further volume in the se
ries to our international audience. Perhaps the most significant
event of the passing year has been the publication by the IAEA of
its study of the prob lem of continuing radiation protection in the
lands surrounding Chernobyl. The major international project
undertaken in 1990 and reported in 1991 is worth reading, not only
for its assessment of how radiation protection intervention should
be applied de facto in accident conditions, but equally for its
account of the modern view of the philosophy of radiation
protection. Some would, however, wish to argue that the
acknowledgement by Iraq of its three-pronged development of nuclear
weapons in conditions of secrecy and antagonism was equally
significant and indeed as much a deter minant of the future of
peaceful nuclear power as the Chernobyl accident. But it must be
clear that the developments of weapons and electricity pro duction
are not inescapably bound together; the Iraqi weapons program was
not linked to any peaceful power development.
John Maynard Keynes is credited with the aphorism that the
long-term view in economics must be taken in the light that "in the
long-term we are aU dead". It is not in any spirit of gloom however
that we invite our readers of the sixteenth volume in the review
series, Advances in Nuclear Science and Technology, to take a long
view. The two principal roles of nuclear energy lie in the military
sphere - not addressed as such in this serie- in the sphere of the
centralised production of power, and chiefly electricity
generation. The immediate need for this latter has receded in the
current era of restricted economies, vanishing growth rates and
occasional surpluses of oil on the spot markets of the world.
Nuclear energy has its most important role as an insurance against
the hard times to come. But will the demand come at a time when the
current reactors with their heavy use of natural uranium feed
stocks are to be used or in an era where other aspects of the fuel
supply must be exploited? The time scale is sufficiently uncertain
and the duration of the demand so unascertainable that a sensible
forward policy must anticipate that by the time the major demand
comes, the reasonably available natural uranium may have been
largely consumed in the poor convertors of the current thermal
fission programme.
This volume represents the second of our occasional departures from
the format of an annual review series, being devoted to one
coherent topic. We have the pleasure therefore in presenting a
concerted sequence of articles on the use of Simulators for Nuclear
Power. An essential attribute of a quantified engineer in any
discipline is to be able to model and predict, i.e. to analyze, the
behaviour of the subject under scrutiny. Simulation goes, one would
argue, a step further. The engineer providing a simulator takes a
broader view of the system studied and makes the analysis available
to a wider audience. Hence simulation may have a part to play in
design but also in operation, in accident studies and also in
training. It leads to synthesis as well as analysis. There is no
doubt that the massive scale and the economic investment implied in
nuclear power programmes demands an increased infra-structure in
licensing and training as well as in design and operation. The
simulator is a cheap alter native - admittedly cheap only in
relative terms - but also perhaps an essential method of providing
realistic experience with negligible or at least small risk.
Nuclear power therefore has led to a wide range of simulators. At
the same time we would not overlook the sub stantial role played by
simulators in say the aero-industry; indeed the ergonomic and
psychological studies associated with that industry hold many
lessons."
Dieses Fachbuch gibt eine kompakte Übersicht über regenerative
Systeme zur Wärme- und Kälteerzeugung. Einbindungs- und
Automatisierungsschemata ermöglichen einen schnellen Überblick.
Es werden die Grundlagen zum Regelverhalten von Systemen zur
regenerativen Energienutzung dargestellt. Praxisbeispiele zeigen
anschaulich Standardlösungen zur Einbindung von regenerativen
Energiequellen.
Physische Gewalt ist ein haufiges Motiv in der Literatur. Diese
Publikation untersucht die wichtigsten Elemente von
Gewaltdarstellungen in der Gegenwartsliteratur und ordnet sie im
ersten Teil typologisch. Der zweite Teil widmet sich emotionalen
Wirkungspotenzialen von Gewaltdarstellungen und untersucht, wie
Gewaltdarstellungen Sympathie, Ekel, Spannung und Komik erzeugen.
Der dritte Teil identifiziert an vier Beispielromanen wichtige
Themen, die mit den Gewaltdarstellungen verbunden werden. Anhand
von Elfriede Jelineks Die Klavierspielerin, Cormack McCarthys Blood
Meridian, Bret Easton Ellis' American Psycho und Roberto Bolanos
2666 wird gezeigt, dass zeitgenoessische Gewaltdarstellungen die
Kritik von Gesellschaftsstrukturen und Kontexten von Gewalt mit
Sprachreflexion verbinden.
I contributi raccolti nel volume risalgono alle rispettive
comunicazioni presentate nella sezione di linguistica del convegno
del Deutscher Italianistenverband, svoltosi dal 20 al 22 marzo 2014
alla Friedrich-Alexander-Universitat Erlangen-Nurnberg e dedicato
al tema delle "relazioni". Sullo sfondo dell'idea che alla base del
nostro modo di pensare e di parlare stia il concetto della
relazionalita, le prospettive storiche e sistematiche di questo
concetto sono state concretizzate sul versante delle relazioni
linguistiche, che possono presentarsi sotto forma di strutture,
rapporti e genealogie. In tal senso sono state discusse, in
prospettiva sia sincronica sia diacronica, relazioni linguistiche
appartenenti a differenti livelli della descrizione linguistica.
?Habla usted espanol? Auf den Spuren einer Weltsprache. Die
Einfuhrung vermittelt die Grundlagen der spanischen
Sprachwissenschaft von der Phonetik, Morphologie uber Syntax und
Semantik bis zur Text- und Korpuslinguistik. Mit der Vielfalt des
Spanischen beschaftigt sich die Varietatenlinguistik: mit den
Regionalsprachen auf der iberischen Halbinsel, dem Spanischen in
Lateinamerika und in den USA. Der sprachgeschichtliche Teil kummert
sich um das Gestern und Heute; es geht unter anderem um die
Herausbildung des Spanischen und um Sprachwandelphanomene.
Schluss-, Minimal- und Maximalwerte von Wertpapieren finden sich in
Form von Erffnungs-, Hoch-, Tief- und Schlusskursen im Brsenteil
nahezu jeder Tages- oder Wochenzeitung. Nicht zuletzt wegen der
hervorragenden Verfgbarkeit erfreuen sich diese Kennzahlen, die
Informationen der gesamten Preisverlufe aggregieren, groer
Beliebtheit. So wird nicht nur die Auszahlung zahlreicher
exotischer Optionen vom Hoch-, Tief- und Schlusskurs des
betreffenden Underlyings determiniert; Schluss-, Minimal- und
Maximalwerte von Preisprozessen werden auch zur Modellschtzung,
dabei insbesondere zur Volatilittsschtzung, sowie fr
Spezifikationstests eingesetzt. Den Hauptgegenstand dieser
Monographie bilden die Entwicklung und Vorstellung effizienter
Simulationsverfahren fr Schluss-, Minimal- und Maximalwerte
verschiedener populrer zeitstetiger Preisprozesse und die Anpassung
dieser Simulationsverfahren fr spezielle Probleme der Monte
Carlo-Optionsbewertung. Der Schwerpunkt liegt dabei auf der
Entwicklung von Verfahren, die im Gegensatz zu den bekannten, in
der Regel auf quidistanten Prozessdiskretisierungen aufbauenden
Standardverfahren einen vorgegebenen maximalen Simulationsfehler
einhalten und dennoch mit einem deutlich geringeren Bedarf an
Rechenzeit (und gegebenenfalls Speicherplatz) auskommen. Ein Kern
der Monographie ist die Entwicklung einer Simulationsmethode fr
Schluss-, Minimal- und Maximalwerte Brownscher Bewegungen auf der
Basis der entsprechenden trivariaten Verteilung, die auf
Sprungdiffusionen und weitere Prozesse mit Komponenten Brownscher
Bewegungen bertragen wird. Ein zweiter Schwerpunkt liegt auf der
Entwicklung einer entsprechenden Simulationsmethode fr Variance
Gamma-Prozesse. Die Simulationsverfahren werden schlielich fr das
konkrete Problem der Monte Carlo-Bewertung von zeitstetig
beobachteten (Double) Barrier Optionen im Black-Scholes-,
Merton-Sprungdiffusions- sowie Variance Gamma-Modell angepasst.
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