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D�tection de Nanoparticules d'Or Par Un Capteur Acoustique de Love
ISBN: 9786131512452 / Francuski / Miękka / 180 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Les capteurs acoustiques A ondes de Love constituent une solution avantageuse pour la dA(c)tection de grandeurs (bio)chimiques en milieux liquides. Ces capteurs prA(c)sentent par ailleurs le potentiel notoire de dA(c)couler d'une industrie mature et bA(c)nA(c)ficient d'avantages de techniques avA(c)rA(c)s. Ces travaux ont permis de dA(c)velopper des systA]mes de mesure A base de capteurs A ondes acoustiques de surface en phase liquide. Des outils thA(c)oriques ont A(c)tA(c) validA(c)s en ce sens. Deux ensembles de technologies ont A(c)tA(c) utilisA(c)s pour la fabrication d'un systA]me...
Les capteurs acoustiques A ondes de Love constituent une solution avantageuse pour la dA(c)tection de grandeurs (bio)chimiques en milieux liquides. Ce...
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cena:
263,29 |
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Etude Th�orique de Nanofils Semi-Conducteurs
ISBN: 9786131515132 / Francuski / Miękka / 144 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Le fonctionnement des dispositifs A(c)lectroniques repose sur la densitA(c) de porteurs de charge libre disponible dans les semi-conducteurs; dans la plupart des dispositifs semi-conducteurs, cette densitA(c) est contrAlA(c)e par l''ajout d''atomes dopant. Lorsque la taille des composantes diminue, la prA(c)sence d''interfaces et de matA(c)riaux adjacents aux semi-conducteurs aura une influence importante qui dA(c)terminera complA]tement les propriA(c)tA(c)s A(c)lectroniques du dispositif. Afin d''amA(c)liorer leurs performances et leurs domaines d''application, de nouvelles architectures de...
Le fonctionnement des dispositifs A(c)lectroniques repose sur la densitA(c) de porteurs de charge libre disponible dans les semi-conducteurs; dans la ...
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cena:
218,66 |
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Dynamique Eulerienne-Lagrangienne
ISBN: 9786131516139 / Francuski / Miękka / 92 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Ce livre est basA(c)e sur la reprA(c)sentation Eulerienne-Lagrangiene de la vitesse, qui nous appelons la transformation de Weber-Clebsch. Constantin a construit en 2002 une extension de la description de Weber-Clebsch des fluides parfaits aux fluides visqueux. La nA(c)cessitA(c) de rA(c)initialiser pA(c)riodiquement les coordonnA(c)es Lagrangiennes A A(c)tA(c) interprA(c)tA(c) par Constantin comme un diagnostique de la reconnexion de la vorticitA(c). Le systA]me de Constantin est contenu dans notre formulation, qui est plus gA(c)nA(c)rale, dans une limite singuliA]re. Pour comparer les...
Ce livre est basA(c)e sur la reprA(c)sentation Eulerienne-Lagrangiene de la vitesse, qui nous appelons la transformation de Weber-Clebsch. Constantin ...
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cena:
174,04 |
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Classical and Quantum Mechanical Aspects of Heavy Ion Collisions: Symposium held at the Max-Planck-Institut für Kernphysik, Heidelberg, Germany, October 2–5, 1974
ISBN: 9783540070252 / Angielski / Miękka / 315 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Springer Book Archives
Springer Book Archives
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cena:
200,77 |
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Kondo effect in quantum dots
ISBN: 9783639150056 / Angielski / Miękka / 76 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. In this monograph, we investigate the transient currents through a quantum dot in the Kondo regime subject to sudden perturbations. We first present novel numerical algorithms which enable relatively fast calculations. We then employ these algorithms to study the transient current through a quantum dot which is symmetrically coupled to metallic leads and its coupling to the leads is abruptly switched such that the Kondo effect is present in the final state. The timescales for the approach to equilibrium are shown to be the same as the ones when the energy level of the dot is...
In this monograph, we investigate the transient currents through a quantum dot in the Kondo regime subject to sudden perturbations. We first presen...
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cena:
218,66 |
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Analytical Solution of the Bloch NMR Flow Equations for Fluid Flow
ISBN: 9783639255829 / Angielski / Miękka / 112 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Various biological and physiological properties of living tissues can be studied by means of NMR techniques. However, the basic physics of extracting the relevant information from the solution of Bloch NMR equations to accurately monitor the clinical state of biological systems is still not fully understood. Presently, there are no simple closed solutions known to the Bloch equations for a general RF excitation. Therefore, an exponential type of solution of the equations presented in this study, which can be taken as definitions of new functions to be studied in detail, may reveal very...
Various biological and physiological properties of living tissues can be studied by means of NMR techniques. However, the basic physics of extracting ...
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cena:
218,66 |
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Study of electrostatic and electromagnetic modes
ISBN: 9783639256956 / Angielski / Miękka / 104 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Using kinetic theory, some Electrostatic and Electromagnetic modes have been studied. New dispersion relations based on Maxwellian and non-Maxwelian velocity distributions are obtained for Langmuir, Dust Ion Acoustic, Dust Acoustic, O-Mode and X-Mode. Instability arisen due to anisotropy of temperature has been calculated under same environment. To illustrate the results graphically, we have plotted the phase velocity squared and the growth rate versus frequency. The real frequency and the growth rate of the modes are calculated by using kappa and generalized (r, q) distribution functions and...
Using kinetic theory, some Electrostatic and Electromagnetic modes have been studied. New dispersion relations based on Maxwellian and non-Maxwelian v...
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cena:
218,66 |
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Zn and Ni Doped CuTl-Based High Temperature Superconductors
ISBN: 9783639270624 / Angielski / Miękka / 368 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. For the studies of coexistance of antiferromagnetism, ferromagnetism and superconductivity, Zn and Ni are doped at the CuO2 planar sites in CuTl-based superconductors.We have realized the Co-existence anti-ferromagnetism and superconductivity in oxide superconductors through the doping of Zn at the CuO2 planar sites. We have also established that Ferro-magnetism and superconductivity can also co-exist in oxide high temperature superconductors. This has been established by doping Ni and Fe at the CuO2 planar sites. It has been established through experiments with...
For the studies of coexistance of antiferromagnetism, ferromagnetism and superconductivity, Zn and Ni are doped at the CuO2 planar sites in CuTl-based...
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cena:
352,54 |
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Optical Emission Spectroscopy of Pulsed DC Plasmas
ISBN: 9783639272413 / Angielski / Miękka / 160 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Glow discharge -optical emission spectroscopy of different plasma gases such as H2 , N2 , N2-H2 and Ar-N2 generated by a cost effective 50 Hz pulsed-DC electrical power source is carried out to investigate the different excitation and ionization processes involved in the production of active species, for surface nitriding of materials. Spectroscopic study of hydrogen Balmer - line profiles are performed in an abnormal glow region of hydrogen plasma for investigating the dependencies of their line shapes and intensities on discharge parameters. A technique based on determining the relative...
Glow discharge -optical emission spectroscopy of different plasma gases such as H2 , N2 , N2-H2 and Ar-N2 generated by a cost effective 50 Hz pulsed-D...
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cena:
263,29 |
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Poling and Switching of Pzt Ceramics
ISBN: 9783639272499 / Angielski / Miękka / 156 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. The polarization is the true measure of the degree of ferroelectricity. Generally, ceramic materials with high value of remanent polarization show usable piezoelectric effects. Accordingly, electric poling is one of the crucial intermediate stages of the manufacturing process of the piezoceramics devices. In this thesis, the ferroelectric, pyroelectric and piezoelectric properties and aftereffects in soft and hard PZT are studied. The properties can be influenced by various parameters either extrinsic such as an applied electric field or intrinsic such as grain size. The main objective of...
The polarization is the true measure of the degree of ferroelectricity. Generally, ceramic materials with high value of remanent polarization show usa...
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cena:
263,29 |
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Yttria-Doped Zirconia as Solid Electrolyte for Fuel-Cell Applications
ISBN: 9783838117751 / Angielski / Miękka / 164 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Yttria-doped zirconia (YDZ) has been used as electrolyte for solid oxide fuel cells (SOFCs) for many years. Nevertheless, fundamental questions regarding the thermal stability and thus the degradation of ionic conductivity of YDZ are controversially discussed in literature. In this study, thick-film and sol-gel prepared thin-film YDZ electrolytes with yttria concentrations in the range of 7.3-10 mol% were investigated by transmission electron microscopy (TEM) with emphasis on microstructural and chemical changes during high-temperature operation. In general, nanoscaled regions of metastable...
Yttria-doped zirconia (YDZ) has been used as electrolyte for solid oxide fuel cells (SOFCs) for many years. Nevertheless, fundamental questions regard...
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cena:
356,56 |
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Optical Transitions in Silicon-Based Optoelectronic Devices
ISBN: 9783838118000 / Angielski / Miękka / 340 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. This work presents experimental results on intersubband transitions in p-type SiGe heterostructures, where time-resolved photocurrent studies allow the determination of intersubband relaxation times of relevance for the development of a silicon-based quantum cascade laser. Inter-valence band relaxation by the emission of LO phonons leads to ultra-short lifetimes of the excited hole state around 500 fs for transition energies above the LO phonon energy, as determined in the course of this work by photocurrent pump-pump experiments employing a free-electron-laser. In contrast, for transition...
This work presents experimental results on intersubband transitions in p-type SiGe heterostructures, where time-resolved photocurrent studies allow th...
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cena:
401,18 |
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A Bose-Einstein Condensate Coupled to a Micromechanical Oscillator
ISBN: 9783838118369 / Angielski / Miękka / 188 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Ultracold neutral atoms can be trapped and coherently manipulated close to a surface using chip-based magnetic microtraps. This opens the possibility of studying interactions between atoms and on-chip solid-state systems such as micro- and nanostructured mechanical oscillators. This thesis reports experiments, where a controlled coupling between a Bose-Einstein condensate and a micromechanical oscillator is realized for the first time. The interaction relies on surface forces experienced by the atoms trapped at about 1 micrometer distance from the mechanical structure. The surface forces are...
Ultracold neutral atoms can be trapped and coherently manipulated close to a surface using chip-based magnetic microtraps. This opens the possibility ...
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cena:
356,56 |
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Sensor Process and Device for Determining a Physical Value
ISBN: 9783838118598 / Angielski / Miękka / 168 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. |
cena:
356,56 |
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Chauffage Stochastique
ISBN: 9786131505607 / Francuski / Miękka / 220 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Cette thA]se s''inscrit dans le cadre de l''A(c)tude de l''interaction laser plasma A trA]s haut flux. L''objectif a A(c)tA(c) de rendre compte d''un phA(c)nomA]ne bien prA(c)cis: le chauffage stochastique. Ce phA(c)nomA]ne trouve son origine dans la nature chaotique du comportement des A(c)lectrons du plasma. Afin de construire un modA]le thA(c)orique simple nous avons fait deux hypothA]ses: des plasmas trA]s peu denses, des intensitA(c)s lasers trA]s A(c)levA(c)es. Cette derniA]re entraine la nA(c)cessitA(c) d''utiliser une approche relativiste du systA]me. Avec ces deux hypothA]ses, notre...
Cette thA]se s''inscrit dans le cadre de l''A(c)tude de l''interaction laser plasma A trA]s haut flux. L''objectif a A(c)tA(c) de rendre compte d''un ...
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cena:
307,91 |
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�tude de la Pr�diction de Chocs V�hicule-Pi�ton
ISBN: 9786131505867 / Francuski / Miękka / 188 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Cette these CIFRE s'interesse a la "prediction de chocs vehicule-pieton" au sein d'un dispositif de protection des pietons, de type pre-crash. Les accidents vehicule-pieton ont d'abord ete etudies, afin de disposer d'une base de reference pour l'evaluation, grace aux simulations, de systemes intelligents de protection des pietons. Le comportement des pietons a ensuite ete etudie, et un modele statistique, a temps continu, reposant sur quatre etats discrets, a ete propose et evalue. Ce modele de pietons a ete utilise pour realiser une prediction probabiliste des chocs vehicule-pieton. Cette...
Cette these CIFRE s'interesse a la "prediction de chocs vehicule-pieton" au sein d'un dispositif de protection des pietons, de type pre-crash. Les acc...
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cena:
263,29 |
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La Diffraction Coh�rente Des Rayons X
ISBN: 9786131509230 / Francuski / Miękka / 272 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. La diffraction cohA(c)rente des rayons X est une technique relativement rA(c)cente, qui permet de rA(c)aliser des mesures de dynamique de fluctuations dans la matiA]re dure ou molle, ou de reconstruire les configurations de l''espace rA(c)el A l''aide d''algorithmes basA(c)s sur des calculs de transformA(c)e de Fourier. Nous montrons ici que cette technique peut Aatre appliquA(c)e A l''A(c)tude de dA(c)fauts de phase isolA(c)s tels que des dislocations et que ceux-ci peuvent Aatre reconstruits sans algorithme. Il apparaA(R)t que la technique peut en principe surpasser en rA(c)solution la...
La diffraction cohA(c)rente des rayons X est une technique relativement rA(c)cente, qui permet de rA(c)aliser des mesures de dynamique de fluctuations...
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cena:
299,13 |
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Manipulation D Atomes Ultra-Froids: Vers Un Laser � Atomes Continu
ISBN: 9786131509407 / Francuski / Miękka / 244 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Dans un laboratoire de recherche fondamentale, la manipulation d'ensembles atomiques ultra-froids permet d'A(c)tudier les processus d'interaction entre atomes et photons. Au cours des derniA]res dA(c)cennies, de telles expA(c)riences ont contribuA(c) A une avancA(c)e considA(c)rable de notre capacitA(c) A manipuler les degrA(c)s de libertA(c) de systA]mes quantiques. Ce livre prA(c)sente les A(c)tudes et rA(c)sultats expA(c)rimentaux qui s'inscrivent directement dans le cadre d'une recherche de niveau international, et dont l'objectif est la rA(c)alisation d'un laser A onde de matiA]re....
Dans un laboratoire de recherche fondamentale, la manipulation d'ensembles atomiques ultra-froids permet d'A(c)tudier les processus d'interaction entr...
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cena:
352,54 |
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Mesure d'�lasticit� Et de Densit� Sous Conditions Extr�mes
ISBN: 9786131511462 / Francuski / Miękka / 176 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. L'objectif de ce mA(c)moire de thA]se a A(c)tA(c) de mettre en place un dispositif expA(c)rimental permettant la mesure des propriA(c)tA(c)s A(c)lastiques sous conditions extrAames par propagation d'onde ultrasonore dans la presse Paris A0/00dimbourg. La modA(c)lisation numA(c)rique du volume expA(c)rimental par la mA(c)thode des A(c)lA(c)ments finis a conduit A une conception appropriA(c)e assurant une tempA(c)rature homogA]ne. Les mesures de vitesse ultrasonore effectuA(c)es sur la magnA(c)tite avec la cellule optimisA(c)e ont permis la dA(c)termination des modules A(c)lastiques et de la...
L'objectif de ce mA(c)moire de thA]se a A(c)tA(c) de mettre en place un dispositif expA(c)rimental permettant la mesure des propriA(c)tA(c)s A(c)lasti...
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cena:
263,29 |
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Le Rendu Des Couleurs Des Diodes �lectroluminescentes (Led)
ISBN: 9786131512049 / Francuski / Miękka / 308 str. Termin realizacji zamówienia: ok. 5-8 dni roboczych. Le dA(c)veloppement des LED de forte puissance au dA(c)but des annA(c)es 2000 a engendrA(c) un besoin de caractA(c)risation des propriA(c)tA(c)s colorimA(c)triques de ces sources, essentiellement pour des applications d'A(c)clairage. Ces aspects ont A(c)tA(c) A(c)tudiA(c) en travaillant sur la qualitA(c) de la lumiA]re par le biais du rendu des couleurs liA(c) A la perception visuelle. Des A(c)tudes ont A(c)tA(c) effectuA(c)es A partir de mesures physiques et visuelles sur des A(c)chantillons colorA(c)s A(c)clairA(c)s par des LED montA(c)es dans une cabine A lumiA]re. Les mesures physiques...
Le dA(c)veloppement des LED de forte puissance au dA(c)but des annA(c)es 2000 a engendrA(c) un besoin de caractA(c)risation des propriA(c)tA(c)s color...
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cena:
397,16 |
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