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Mathematical Modeling of Collective Behavior in Socio-Economic and Life Sciences
ISBN: 9780817649456 / Angielski / Twarda / 438 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Mathematical modeling using dynamical systems and partial differential equations is now playing an increasing role in the understanding of complex multi-scale phenomena. Behavior in seemingly different areas such as sociology, economics, and the life sciences can be described by closely related models. Systems made out of a large enough number of individual members can be said to exhibit a collective behavior, from which insight can be gathered in a way that real life experiments cannot. Using examples from financial markets and modern warfare to the flocking of birds and the... Mathematical modeling using dynamical systems and partial differential equations is now playing an increasing role in the understanding of complex ... |
cena:
402,53 |
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Mise En Oeuvre d''un Syst�me Java En Imagerie
ISBN: 9786131532375 / Francuski / Miękka / 88 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Ce memoire de maitrise etudie la possibilite d'utiliser un appareil photo numerique standard pour la detection du glaucome. Un algorithme de recalage de flot optique a partir d'une paire d'images stereoscopique de la retine est developpe afin de detecter la deterioration du nerf optique. En lieu et place d'une camera confocale au laser, un appareil optique d'ophtalmologie simple pourrait etre utilise en combinaison avec cet algorithme.
Ce memoire de maitrise etudie la possibilite d'utiliser un appareil photo numerique standard pour la detection du glaucome. Un algorithme de recalage ...
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cena:
174,45 |
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Elaboration Et Propriétés Physiques de Nanofils Supraconducteurs
ISBN: 9786131531552 / Francuski / Miękka / 132 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Des nanofils de plomb ou d'etain d'un diametre variant de quelques dizaines a quelques centaines de nanometres et longs de plusieurs dizaines de microns ont ete elabores par electrodeposition dans des membranes nanoporeuses. Leur diametre etant comparable ou inferieur aux longueurs caracteristiques de la supraconductivite, ces nanofils permettent d'etudier les proprietes des supraconducteurs quasi-unidimensionels. Les proprietes magnetiques ont ete mesurees par magnetometrie SQUID. De plus, une technique auto-organisee nous a permis de contacter electriquement des nanofils uniques. Nous avons...
Des nanofils de plomb ou d'etain d'un diametre variant de quelques dizaines a quelques centaines de nanometres et longs de plusieurs dizaines de micro...
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cena:
219,18 |
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Phénomènes d''optique Non-Linéaire Dans Des Vcsels
ISBN: 9786131531491 / Francuski / Miękka / 148 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Le travail prA(c)sentA(c) dans ce mA(c)moire concerne l''A(c)tude dans les microrA(c)sonateurs A semiconducteur III-V des phA(c)nomA]nes d''Optique Transverse que sont les solitons de cavitA(c). Ceux-ci rA(c)sultent de l''interaction d''un faisceau externe injectA(c) dans la cavitA(c) avec les non-linA(c)aritA(c)s du matA(c)riau actif et la diffraction. L''originalitA(c) de ce travail tient au pompage optique de l''amplificateur semiconducteur A cavitA(c) verticale (VCSOA). On s''est d''abord attachA(c) A dA(c)velopper les aspects thA(c)oriques de la physique mise en jeu, puis les aspects...
Le travail prA(c)sentA(c) dans ce mA(c)moire concerne l''A(c)tude dans les microrA(c)sonateurs A semiconducteur III-V des phA(c)nomA]nes d''Optique Tr...
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cena:
219,18 |
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Inversion of critical light scattering.
ISBN: 9786131530173 / Angielski / Miękka / 196 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This Ph.D. work deals with the scattering of light by a cloud of bubbles (i.e. particles with relative refractive index below unit) near the critical-scattering-angle. Under a single scattering assumption, a critical scattering pattern (CSP) can be accurately modeled with the Lorenz-Mie theory and a Fredholm integral of the first kind. A CSP is basically composed of several bows that are very similar to those observed in the forward diffraction zone and the rainbow region. By measuring the angular spreading, the visibility and the global position of these bows it is possible to deduce the...
This Ph.D. work deals with the scattering of light by a cloud of bubbles (i.e. particles with relative refractive index below unit) near the critical-...
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cena:
321,60 |
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Diffusion Acoustique Et Réseaux de Capteurs
ISBN: 9786131530159 / Francuski / Miękka / 208 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. L''analyse de la diffusion acoustique est un outil important pour l''imagerie et la caractA(c)risation. Les applications concernent le contrAle non-destructif, l''imagerie mA(c)dicale ou l''acoustique sous-marine. La mA(c)thode employA(c)e dans cet ouvrage est la DA(c)composition de l''OpA(c)rateur de Retournement Temporel (mA(c)thode DORT). Elle consiste A A(c)tudier les invariants du Retournement Temporel. Pour un rA(c)seau donnA(c) de transducteurs, ceux-ci correspondent aux vecteurs singuliers obtenus par dA(c)composition en valeur singuliA]res de la matrice K des rA(c)ponses...
L''analyse de la diffusion acoustique est un outil important pour l''imagerie et la caractA(c)risation. Les applications concernent le contrAle non-de...
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cena:
308,64 |
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Développement Des Lasers Xuv Créés Par Laser Femtoseconde
ISBN: 9786131520402 / Francuski / Miękka / 244 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Les sources XUV cohA(c)rentes prA(c)sentent un potentiel important d''applications scientifiques, mA(c)dicales et industrielles. Le dA(c)veloppement des lasers ultra intenses a permis la rA(c)alisation de nouvelles sources XUV cohA(c)rentes et brA]ves, comme la gA(c)nA(c)ration d''harmonique d''ordre A(c)levA(c)e et les lasers XUV. Ces sources sont compactes, peu coAteuses par rapport aux sources classiques telles que les synchrotrons, et prA(c)sentent donc un intA(c)rAat tout particulier. Ce livre prA(c)sente une sA(c)rie d''A(c)tudes sur une nouvelle source de laser XUV, pompA(c)e par un...
Les sources XUV cohA(c)rentes prA(c)sentent un potentiel important d''applications scientifiques, mA(c)dicales et industrielles. Le dA(c)veloppement d...
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cena:
353,37 |
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Caractérisation Multiéchelle de la Transformation Martensitique
ISBN: 9786131516528 / Francuski / Miękka / 204 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Les Alliages a Memoire de Forme (AMF) presentent un comportement tres different des materiaux habituels. Leurs proprietes exceptionnelles, comme l'effet memoire et la superelasticite, sont etroitement associees aux caracteristiques de la transformation martensitique. Les evolutions microstructurale associes a cette transformation jouent un role considerable sur la nature des proprietes macroscopiques. Le travail experimental, realise sur un AMF superelastique de type CuAlBe, montre que les techniques de diffractions aux grands instruments permettent de realiser des analyses microstructurales...
Les Alliages a Memoire de Forme (AMF) presentent un comportement tres different des materiaux habituels. Leurs proprietes exceptionnelles, comme l'eff...
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cena:
438,35 |
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Finite Difference Methods in Numerical Relativity
ISBN: 9783639288100 / Angielski / Miękka / 152 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This work concerns the development of high order accurate finite difference techniques for the discretization of hyperbolic systems that are first order in time and second order in space. Its motivation comes from numerical relativity where many current formulations of the Einstein equations have this form. It pays special attention to the case where some first order derivatives are approximated with non-centered finite difference operators. This case is important because in numerical simulations of black holes using the BSSN formulation, it has been observed that a one-point off-centering...
This work concerns the development of high order accurate finite difference techniques for the discretization of hyperbolic systems that are first ord...
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cena:
263,91 |
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Computational Study of Oxynitride Based Strong Materials
ISBN: 9783639287820 / Angielski / Miękka / 156 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. A spinel oxynitride material in the form M3NO3 (M = B, Al, Ga, or In) is considered to be derived from a reaction of the form MN + M2O3 ---- M3NO3. Various possible phases of MN and M2O3 that could lead to M3NO3 oxynitride spinel material have been considered in the work. The structural, electronic, elastic properties and the relative stabilities of the bulk and the nature of the resulting vacancies or defect-related properties of these oxynitride spinel structures are investigated using ab-initio or first principles electronic structure methods based on density functional theory (DFT)....
A spinel oxynitride material in the form M3NO3 (M = B, Al, Ga, or In) is considered to be derived from a reaction of the form MN + M2O3 ---- M3NO3. Va...
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cena:
263,91 |
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Basic Health Physics: Problems and Solutions
ISBN: 9783527408238 / Angielski / Twarda / 768 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Designed to prepare candidates for the American Board of Health Physics Comprehensive examination (Part I) and other certification examinations, this monograph introduces professionals in the field to radiation protection principles and their practical application in routine and emergency situations. It features more than 650 worked examples illustrating concepts under discussion along with in-depth coverage of sources of radiation, standards and regulations, biological effects of ionizing radiation, instrumentation, external and internal dosimetry, counting statistics, monitoring and...
Designed to prepare candidates for the American Board of Health Physics Comprehensive examination (Part I) and other certification examinations, this ...
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cena:
684,37 |
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Magnetic Properties of Tectosilicates I
ISBN: 9783540699460 / Angielski / Twarda / 728 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The magnetic properties of silicates and phosphates are compiled in subvolume 27I. While subvolumes 27I1, 27I2, 27I3, 27I4, 27I5 and 27I6 (already published) deal with orthosilicates, sorosilicates, cyclosilicates, inosilicates, and phyllosilicates, respectively, the present subvolume 27I7 deals with phosphates. The magnetic properties of silicates and phosphates are compiled in subvolume 27I. While subvolumes 27I1, 27I2, 27I3, 27I4, 27I5 and 27I6 (already ... |
cena:
2012,81 |
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Terahertz quantum cascade lasers
ISBN: 9783639276602 / Angielski / Miękka / 248 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The Terahertz (THz) region of the electromagnetic spectrum is usually defined as ranging from 1 THz (300 micrometers in wavelength) to 10 THz (30 micrometers in wavelength). In this dissertation we present the complete realization of semiconductor-heterostructure lasers emitting in the THz and employing the quantum cascade technology. The quantum cascade laser is a coherent light source based on optical transitions between discrete electronic states arising from size confinement in semiconductor quantum wells. The quantum mechanical design of the heterostructure-based gain...
The Terahertz (THz) region of the electromagnetic spectrum is usually defined as ranging from 1 THz (300 micrometers in wavelength) to 10 THz (30 ...
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cena:
353,37 |
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Luminescence mechanism of Pr3+ doped Alkaline Earth Sulfide Phosphor
ISBN: 9783639294316 / Angielski / Miękka / 268 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This thesis is a culmination of series of studies on the praseodymium activated alkaline earth sulfide phosphor synthesis through various routes and investigations on their luminescence properties. The phosphors were prepared via several methods namely solid-state carbothermal reduction, chemical co- precipitation where hydrazine-hydrate and sulfur solution acts as a workhorse behind a benchmark synthesis following post-precipitation annealing of precursors and solid-state sulfurization flux method utilizing alkali polysulfides to form the final product. Various experimental...
This thesis is a culmination of series of studies on the praseodymium activated alkaline earth sulfide phosphor synthesis through various routes and...
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cena:
353,37 |
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Principles and Methods: Subvolume B: Detectors for Particles and Radiation - Volume 21: Elementary Particles - Group I: Elementary Particles,
ISBN: 9783642036057 / Angielski / Twarda / 452 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Competent experts provide a summary of the enormous progress achieved in the development of new detection methods of charged and neutral particles, and photons. These achievements were initiated by the advent of new particle colliders, e.g., the LHC at CERN, but also by non-accelerator experiments. Part 1 of Subvolume B reviews the interaction of particle radiation with matter, and describes particle detectors, like, e.g., scintillation, gaseous, solid state, time-of-flight, Cerenkov, transition radiation, and neutrino detectors. Calorimetry and nuclear emulsions are considered as well....
Competent experts provide a summary of the enormous progress achieved in the development of new detection methods of charged and neutral particles, an...
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cena:
2012,81 |
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Compounds with 20 to 136 Carbon Atoms: Supplement to Subvolumes C, F and I
ISBN: 9783642141805 / Angielski / Twarda / 612 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This index is a guide to organic compounds which have material constants of general interest described in the Landolt-Bornstein / New Series.In total in the subvolumes J, K, L and M, 23865 compounds with 83941 references to numerical data are recorded Compiled are volumes containing nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) data, acoustical and optical properties, structure and molecular constants, mechanical and thermodynamic constants as well as physical properties of liquid crystals. All new compounds are given with the drawing of the chemical structure,... This index is a guide to organic compounds which have material constants of general interest described in the Landolt-Bornstein / New Series.In tot... |
cena:
2012,81 |
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A Plane-Wave Based K.P-Model to Study Semiconductor Nanostructures
ISBN: 9783838119359 / Angielski / Miękka / 160 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The eight-band k.p-formalism in combination with the second-order continuum elasticity theory has been employed highly successful to understand the elastic and electronic properties of various semiconductor nanostructures like quantum dots, wires and wells. Within the present work, a novel, plane-wave formulation of these two continuum models is presented, which allows to employ these tools with a dramatically increased efficiency to a wide field of nanostructures and a large range of semiconductor materials. A correspondingly wide range of nanostructures that are promising for future...
The eight-band k.p-formalism in combination with the second-order continuum elasticity theory has been employed highly successful to understand the el...
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cena:
312,66 |
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Tensor Fields on Orbits of Quantum States and Applications
ISBN: 9783838120539 / Angielski / Miękka / 116 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. On classical Lie groups, which act by means of a unitary representation on finite dimensional Hilbert spaces, quantum state dependent tensor field constructions are considered. While evading the traditional ambiguity on defining metrical structures on the convex set of mixed states, one can show that these tensor field constructions allow an alternative approach to the problem of deciding whether a given state in a n-level bi-partite quantum system is entangled or separable.
On classical Lie groups, which act by means of a unitary representation on finite dimensional Hilbert spaces, quantum state dependent tensor field con...
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cena:
241,09 |
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Polariton Plasmons de Surface - Excitons
ISBN: 9786131534225 / Francuski / Miękka / 200 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Ce travail de these porte sur l'etude des proprietes optiques de materiaux proche de surface metallique. Nous avons mis en evidence un regime de couplage fort entre les plasmons de surface, se propageant a l'interface metal dielectrique, et les excitons de semi-conducteurs organiques. Ceux-ci sont forme de colorants J-agreges. Le couplage fort se traduit par l'apparition d'etats mixtes plasmons-excitons: les polaritons. Des mesures de reflectometrie, realisees sur des echantillons presentant une couche de J-agregats deposee sur un film d'argent, nous permettre de mettre en evidence un...
Ce travail de these porte sur l'etude des proprietes optiques de materiaux proche de surface metallique. Nous avons mis en evidence un regime de coupl...
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cena:
263,91 |
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Identity in Physics: A Historical, Philosophical, and Formal Analysis
ISBN: 9780199575633 / Angielski / Miękka / 448 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Can quantum particles be regarded as individuals, just like books, tables and people? According to the 'received' view - articulated by several physicists in the immediate aftermath of the quantum revolution - quantum physics itself tells us they cannot: quantum particles, unlike their classical counterparts, must be regarded as 'non-individuals' in some sense. However, recent work has indicated that this is not the whole story and that the theory is also consistent with the position that such particles can be taken to be individuals, albeit at a metaphysical price.
Drawing on... Can quantum particles be regarded as individuals, just like books, tables and people? According to the 'received' view - articulated by several physic...
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cena:
211,89 |
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