Search results for "Aide"
showing 10 items of 1461 documents
Equivalence Problem of Composite Class Diagrams
2001
Multiplicity constraints in a UML composite class diagram may be inconsistent. An algorithm is given for eliminating all such inconsistencies. Using this algorithm an algorithm is constructed which for two given composite class diagrams solves the equivalence problem. These algorithms can be embedded in CASE tools for automated detection of multiplicity inconsistencies.
Waveguiding properties of a photonic crystal fiber with a solid core surrounded by four large air holes
2009
The polarization-dependent guiding properties of a hexagonal-lattice photonic crystal fiber with a solid-core surrounded by four large air holes are investigated. The appearance of a polarization dependent cutoff frequency, together with several parameters as the birefringence, the modal effective area, the group velocity dispersion and the polarization dependent loss are analyzed. A collection of fibers with different structural parameters were fabricated and characterized. An effective anti-guide structure from at least 450 nm to 1750 nm, a polarizing fiber with a polarization dependent loss of 16 dB/m at 1550 nm, and an endlessly singlemode polarization-maintaining fiber with group biref…
Optical gain, spontaneous and stimulated emission of surface plasmon polaritons in confined plasmonic waveguide
2010
International audience; We develop a theoretical model to compute the local density of states in a confined plasmonic waveguide. Based on this model, we derive a simple formula with a clear physical interpretation for the lifetime modification of emitters embedded in the waveguide. The gain distribution within the active medium is then computed following the formalism developed in a recent work [Phys. Rev. B 78, 161401 (2008)], by taking rigorously into account the pump irradiance and emitters lifetime modifications in the system. We finally apply this formalism to describe gain–assisted propagation in a dielectric–loaded surface plasmon polariton waveguide.
Moraalisten ja esteettisten arvostelmien suhde taiteessa : katsaus kohtuullisiin teorioihin
2015
Tämä tutkielma käsittelee moraalisten ja esteettisten arvostelmien suhdetta taiteessa keskittyen kolmeen kohtuulliseksi teoriaksi katsottuun näkemykseen: Noël Carrollin kohtuulliseen moralismiin, Berys Gautin etikismiin sekä Andersonin ja Deanin kohtuulliseen autonomismiin. Tarkoitukseni on selvittää, millä tavalla kukin näistä teoreetikoista näkee taiteen moraalin ja estetiikan suhteen. Tutkimuskysymyksessäni haluan ottaa selvää, onko taiteessa sekä moraalisia että esteettisiä arvostelmia ja vaikuttavatko nämä toisiinsa. Ennen siirtymistä varsinaisiin kohtuullisiin teorioihin pohjustan aihetta selvittämällä, kuinka taiteen moraaliin ja estetiikkaan on suhtauduttu historian kuluessa ja mite…
Production and detection of atomic hexadecapole at Earth's magnetic field
2007
Anisotropy of atomic states is characterized by population differences and coherences between Zeeman sublevels. It can be efficiently created and probed via resonant interactions with light, the technique which is at the heart of modern atomic clocks and magnetometers. Recently, nonlinear magneto-optical techniques have been developed for selective production and detection of higher polarization moments, hexadecapole and hexacontatetrapole, in the ground states of the alkali atoms. Extension of these techniques into the range of geomagnetic fields is important for practical applications. This is because hexadecapole polarization corresponding to the $\Delta M=4$ Zeeman coherence, with maxim…
3‐D CALCULATION OF ZERO‐COMPONENT FLUX IN THREE‐PHASE THREE‐COLUMN TRANSFORMER
1994
The paper discusses the problem of space distribution of zero‐component magnetic flux generated in three‐column transformer. For 3‐D magnetic field calculation the method of integral equations was used. The numerical calculations were made for physical model of the transformer and compared with experimental results. The accuracy of the calculations of the magnetic field, achieved in the work, proves that the modelling may be used as a computer aided designing tool.
Computer-aided-diagnosis for ocular abnormalities from a single color fundus photography with deep learning
2023
Any damage to the retina can lead to severe consequences like blindness. This visual impairment is preventable by early detection of ocular abnormalities. Computer-aided diagnosis (CAD) for ocular abnormalities is built by analyzing retinal imaging modalities, for instance, Color Fundus Photography (CFP). The main objectives of this thesis are to build two CAD models, one to detect the microaneurysms (MAs), the first visible symptom of diabetic retinopathy, and the other for multi-label detection of 28 ocular abnormalities consisting of frequent and rare abnormalities from a single CFP by using deep learning-based approaches. Two methods were proposed for MAs detection: ensemble-based and c…
Digital Mosaic Frameworks - an overview
2007
Art often provides valuable hints for technological innovations especially in the field of Image Processing and Computer Graphics. In this paper we survey in a unified framework several methods to transform raster input images into good quality mosaics. For each of the major different approaches in literature the paper reports a short description and a discussion of the most relevant issues. To complete the survey comparisons among the different techniques both in terms of visual quality and computational complexity are provided.
Educazione e recalcitranza. Brevi note sulla nozione di paideia in Aristotele
2020
Leonardo Samonà dedica delle interessanti riflessioni al concetto di paideia nel libro Gamma e proprio prendendo spunto da tali riflessioni, pur da una prospettiva diversa e con intenti teorici differenti, il saggio si concentra su questo peculiare uso di paideia che si ritrova nei testi aristotelici, con particolare attenzione alle sue implicazioni in Metafisica Gamma. Un uso che ha a che fare con la questione dei principi primi, con il tema dell'adeguatezza epistemologica e con la relazione conflittuale e problematica con la figura del recalcitrante.