102,271 research outputs found
Equilibrium measure for a nonlocal dislocation energy with physical confinement
No full textIn this paper, we characterize the equilibrium measure for a family of nonlocal and anisotropic energies I α that describe the interaction of particles confined in an elliptic subset of the plane. The case α = 0 corresponds to purely Coulomb interactions, while the case α = 1 describes interactions of positive edge dislocations in the plane. The anisotropy into the energy is tuned by the parameter and favors the alignment of particles. We show that the equilibrium measure is completely unaffected by the anisotropy and always coincides with the optimal distribution in the case α = 0 of purely Coulomb interactions, which is given by an explicit measure supported on the boundary of the elliptic confining domain. Our result does not seem to agree with the mechanical conjecture that positive edge dislocations at equilibrium tend to arrange themselves along "wall-like"structures. Moreover, this is one of the very few examples of explicit characterization of the equilibrium measure for nonlocal interaction energies outside the radially symmetric case
AN RBS, NRA AND SEM STUDY OF ANNEALING EFFECTS ON THE MICROSTRUCTURE OF PALLADIUM LAYERS
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What does the future hold for the Lung Cancer Ambition Alliance project: An interview with Giorgio Scagliotti
No full textPOSSIBLE EVIDENCE OF QUANTUM-SIZE EFFECTS IN X-RAY PHOTOEMISSION SPECTRA OF ULTRATHIN SI LAYERS
No full textThis letter reports the experimental evidence of a 2.3 eV blue shift of the plasmon loss lines observed in the x-ray photoelectron spectra of an ultrathin Si layer equivalent to 1.5 X 10(15) at./cm(2) deposited onto a randomly oriented Al2O3 Single crystal. The plasmon line shifts, which is roughly proportional to the deposited Si(mass)(-2/3), are attributed to quantum confinement effects in agreement with electron energy loss measurements performed on nanosized Si particles
TNF-α determination in serum and pleural effusion in patients with lung cancer
No full textThe relationship between Tumor Necrosis Factor-α (TNF-α) in the serum and pleural fluid of lung cancer patients and the extent and the histological cell type was studied. TNF-α level was determined in the serum of 68 patients with lung cancer [51 non-small cell lung cancer (NSCLC) and 17 small cell lung cancer (SCLC)] and in pleural fluid of 30 patients with lung cancer (22 NSCLC, 11 of them positive for neoplastic cells and 8 SCLC, 7 of them positive). Sera of 31 healthy subjects and the pleural fluid of 15 non-malignant pleural effusions were tested as controls. TNF-α serum level was increased in patients with lung cancer (healthy subjects 7.8 ± 3.3 pg/ml; lung cancer 16.2 ± 9.1 pg/ml), in NSCLC as well as SCLC and a relationship with the extent of the disease was found in both the histological types. In pleural fluid, no differences of TNF-α level were observed between neoplastic and benign inflammatory effusion, between SCLC and NSCLC or between cases positive and negative for the presence of neoplastic cells. Serum TNF-α may be an indicator of tumour burden; conversely, TNF-α in pleural fluid, was unable to discriminate between neoplastic and benign effusion
PLASMA-SPRAYED ZIRCONIA ELECTROLYTES
No full textZirconia-based electrolytes, stabilized either with yttrium oxide or calcium oxide, were prepared in 100 to 200 μm thick layers by plasma spraying and densified by high-temperature vacuum sintering. The structure and the microstructure were investigated by optical microscopy, scanning electron microscopy, X-ray diffraction and Raman spectroscopy. The results are compared with the data we obtained on the powders used for plasma spraying and on single crystals. In the zirconia-yttria system, dense and fully stabilized zirconia films with structural properties similar to the corresponding single crystals were obtained. On the other hand, cracks and deformations were observed on calcia-stabilized films. This phenomenon is explained by the dramatic increase of monoclinic phase content due to the preferential evaporation of calcium oxide which occurs during high-temperature vacuum sintering
Bibliographie Hilarion G. Petzold 1958 – 2009 mit Anhang als Einführung
No full textDieses Archiv enthält die Gesamtbibliographie der Werke des Autors nebst einiger Texte „Über H. G. Petzold“ im Schlussteil der Bibliographie sowie einen Anhang mit einer Einführung in die Architektur des Werkes in seinem wissenslogischen Aufbau als Ausarbeitung seines „Tree of Science Modells“ (2007).This archive contains the complete bibliography of the author and some texts about H. G. Petzold, moreover an epilogue with an introduction to the architecture of the works in its epistemological structure and composition and as an elaborations of Petzold’s „Tree of Science Modell (2007).https://www.fpi-publikation.de/polyloge/01-2009-petzold-h-g-gesamtbibliographie-h-g-petzold-1958-2009-updating-november2009/peerReviewedpublishedVersio
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