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Relevant bibliographies by topics / Pert, methode - systeme coherent

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Journal articles
Dissertations / Theses
Conference papers

Academic literature on the topic 'Pert, methode - systeme coherent'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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Journal articles on the topic "Pert, methode - systeme coherent"

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Masłowski, Dariusz, Kinga Kijewska, and Ewa Kulińska. "Management of Municipal Public Transport Vehicle Journeys by Using the PERT Method." Energies 14, no. 15 (2021): 4403. http://dx.doi.org/10.3390/en14154403.

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These days, seamless moving about a city is a determinant of the city’s competitiveness, and is decisive for the life quality in the city. Hence, taking care of appropriate traffic organisation is one of the major tasks of the city authorities. Development of optimal production and spatial interrelations, considering their costs, efficiency and scope of services rendered to individual entities, enables economic and ecological development of the region. Therefore, the issue of major importance for a city is implementing a transport policy that makes it possible to choose a specified method of d

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Fafard, Alex, Ali Rouzbeh Kargar, and Jan van Aardt. "Weighted Spherical Sampling of Point Clouds for Forested Scenes." Photogrammetric Engineering & Remote Sensing 86, no. 10 (2020): 619–25. http://dx.doi.org/10.14358/pers.86.10.619.

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Terrestrial laser scanning systems are characterized by a sampling pattern which varies in point density across the hemisphere. Additionally, close objects are over-sampled relative to objects that are farther away. These two effects compound to potentially bias the three-dimensional statistics of measured scenes. Previous methods of sampling have resulted in a loss of structural coherence. In this article, a method of sampling is proposed to optimally sample points while preserving the structure of a scene. Points are sampled along a spherical coordinate system, with probabilities modulated b

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Isaev, V. G., N. G. Seregin, and N. N. Grechanaya. "Measurement of deformations of structural elements technical systems of aircraft by fiber optic devices." Informacionno-technologicheskij vestnik, no. 2 (July 30, 2018): 14–24. http://dx.doi.org/10.21499/2409-1650-2018-2-14-24.

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The article deals with the measurement of deformations of structural elements of technical systems. The analysis of damages and deformations arising in the elements of aircraft structures during operation is carried out. The conducted researches of the fiber-optical sensor (VOD) based on the Fabry-Perot interferometer confirmed its accuracy and reliability of operation, since the interferometer base is significantly less than the length of the fastening element. The influence of the change in ambient temperature on the change in the base is negligible. Thus, the application of the method of fi

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Hoornweg, Gerard Ph, Tjipke De Beer, Nel H. Velthorst, and Cees Gooijer. "Forward Degenerate Four-Wave Mixing as a Detection Method in Liquid Separation Systems: Improving Detection Limits by Means of a Fabry—Perot Interferometer." Applied Spectroscopy 51, no. 7 (1997): 1008–11. http://dx.doi.org/10.1366/0003702971941395.

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A simple, small, and low-resolution confocal Fabry–Perot interferometer (CFP) has been developed to improve the signal-to-noise ratio (S/N) in forward degenerate four-wave mixing (F-D4WM) detection, coupled to high-performance liquid chromatography (HPLC). Its appropriateness is based on the difference in coherence between the F-D4WM signal and the background stray light. A detailed description of the specially designed CFP and its performance is presented. The improvement in S/N was calculated from the chromatographic peaks recorded after an HPLC separation of 1- and 2-aminoanthraquinone. The

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Farhat, Mohamed, Sebastien Guenneau, Pai-Yen Chen, and Ying Wu. "Parity-Time Symmetry and Exceptional Points for Flexural-Gravity Waves in Buoyant Thin-Plates." Crystals 10, no. 11 (2020): 1039. http://dx.doi.org/10.3390/cryst10111039.

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We derive and apply a transfer matrix method (M-matrix) coupling liquid surface waves and flexural-gravity waves in buoyant thin elastic plates. We analyze the scattering matrix (S-matrix) formalism for such waves propagating within a Fabry-Perot like system, which are solutions of a sixth order partial differential equation (PDE) supplied with adequate boundary conditions. We develop a parity-time (PT)-symmetry theory and its applications to thin elastic floating plates. The sixth order PDE governing the propagation of these waves leads to six by six M and S matrices, and results in specific

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Stengård, Emelie, Aleksi Räsänen, Carla Sofia Santos Ferreira, and Zahra Kalantari. "Inventory and Connectivity Assessment of Wetlands in Northern Landscapes with a Depression-Based DEM Method." Water 12, no. 12 (2020): 3355. http://dx.doi.org/10.3390/w12123355.

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Wetlands, including peatlands, supply crucial ecosystem services such as water purification, carbon sequestration and regulation of hydrological and biogeochemical cycles. Peatlands are especially important as carbon sinks and stores because of the incomplete decomposition of vegetation within the peat. Good knowledge of individual wetlands exists locally, but information on how different wetland systems interact with their surroundings is lacking. In this study, the ability to use a depression-based digital elevation model (DEM) method to inventory wetlands in northern landscapes and assess t

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Ferreras, Antonio, and Luis E. Pablo. "Imaging of the Retinal Nerve Fibre Layer with Spectral-domain Optical Coherence Tomography in Patients with Glaucoma." European Ophthalmic Review 04, no. 01 (2010): 17. http://dx.doi.org/10.17925/eor.2010.04.01.17.

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Evaluation of the retinal nerve fibre layer (RNFL) is key to diagnosing and monitoring changes in glaucoma. Optical coherence tomography (OCT) is a non-invasive, objective, quantitative method that provides realtimein vivoimages of the retina. The new spectral-domain OCTs have increased resolution and acquisition speed compared with earlier time-domain OCTs, enabling the generation of highly detailed 3D images. Axial resolution has also been improved from 10 to 3–5μm. Thus, spectral-domain OCT is a promising new clinical tool for evaluating the RNFL in glaucoma and other retinal diseases. Rece

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Suvorova, Arina Valeryevna. "Practical aspects of the assessment of economic space." Теоретическая и прикладная экономика, no. 1 (January 2021): 86–98. http://dx.doi.org/10.25136/2409-8647.2021.1.35545.

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The subject of this research is determination of the peculiarities of assessing spatial characteristics of the development of socioeconomic systems of different scales. Special attention is given to the author&rsquo;s approach towards assessment of economic space, which can become the basis for universal methodology suitable for comprehensive characteristics of spatial specificity of the economic phenomena and processes. The methodological framework of this research is comprised of the general scientific methods of theoretical and empirical cognition (scientific abstraction, analysis, and

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Lachowicz, Ewelina, Wojciech Lubiński, Wojciech Gosławski, Elżbieta Andrysiak-Mamos, Agnieszka Kaźmierczyk-Puchalska, and Anhelli Syrenicz. "The electrophysiological tests in the early detection of the visual pathway dysfunction in patients with microadenoma." Documenta Ophthalmologica, March 20, 2021. http://dx.doi.org/10.1007/s10633-021-09827-x.

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Abstract Purpose To evaluate the validity of electrophysiological tests in the early diagnosis of a ganglion cells and/or optic nerve dysfunction in patients with pituitary microadenoma. Methods 66 eyes, from 33 patients with microadenoma with no evidence of the optic chiasm compression in magnetic resonance imaging (MRI) and the visual impairment in the routine ophthalmological examination, standard static perimetry (24-2 white on white) and optical coherence tomography (HD-OCT), were analysed. The pattern electroretinogram (PERG), standard pattern visual evoked potentials (PVEPs) and multich

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Ma, Q., Y. Du, J. L. Wang, S. J. Wu, Y. X. Zhao, and Y. J. Zhou. "Long-term safety and performance of a novel conical bioresorbable vascular scaffold: insights from in-vitro and in-vivo studies." European Heart Journal 41, Supplement_2 (2020). http://dx.doi.org/10.1093/ehjci/ehaa946.2538.

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Abstract Background The phenomenon of size-mismatches between cylindrical stents and tapered vessels is not uncommon in current endovascular interventions which is associated with poor clinical outcomes. Purpose The aim of the present study was to evaluate the mechanical properties of the novel conic BRS and to validate its performance with the support of optical coherence tomography (OCT), quantitative coronary angiography (QCA) and histology up to 2 years in a porcine model. Methods We produced the conical BRS with the four-axis 3D printing system, with a computer-controlled rotational axis

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Dissertations / Theses on the topic "Pert, methode - systeme coherent"

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SAIDI, KARECHE DOUDJA. "Planification et pilotage de la production dans les systemes productifs mulicentriques." Paris, ENMP, 1996. http://www.theses.fr/1996ENMP0698.

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L'evolution des contraintes d'organisation et de gestion de la production a conduit a l'emergence de reseaux defirmes ayant un projet productif commun, que nous denommons "systemes de production multicentriques". Le pilotage de ces productions pose le probleme de la coherence, par rapport a un objectif global, des zones d'autonomie des differents acteurs locaux. Dans ce cadre, notre recherche a porte sur la problematique de la coherence et de la performance de dispositifs de coordination, sachant que nous nous sommes focalisee sur les strategies de reduction et de respect des delais. Notre tra

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Conference papers on the topic "Pert, methode - systeme coherent"

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Kern, Matthias, Svetoslav Marinov, Peter Habisreuther, Nikolaos Zarzalis, Antonio Peschiulli, and Fabio Turrini. "Characteristics of an Ultra-Lean Swirl Combustor Flow by LES and Comparison to Measurements." In ASME 2011 Turbo Expo: Turbine Technical Conference and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/gt2011-45300.

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The lean combustion process is one of the most promising methods for reducing NOx emissions of jet engines. Since the risk of flash back is major for premixed concepts a diffusion flame concept is applied. In order to realize the lean condition in this concept the percentage of air flowing through the injection system and combustor dome has to be drastically increased. This leads to nozzles with a high effective area and to high volume flux in the primary zone of the combustor chamber. Such an injection system demands a particular focus towards flame stability at low load. Hence, it is essenti

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