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Статті в журналах з теми "Observation points grid"

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Kim, Ki-Hwan, Eun-Hee Lee, and Song-You Hong. "Potential of Voronoi Diagram for the Conserved Remapping of Precipitation." Monthly Weather Review 146, no. 7 (2018): 2237–46. http://dx.doi.org/10.1175/mwr-d-17-0350.1.

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Abstract This study considers a remapping algorithm between irregularly distributed observations and grid points based on Voronoi diagrams and examines its potential for verification of precipitation forecasts. We propose a new remapping method using Voronoi diagrams to apply conservative area-weighted remapping on grid data to station points, describing a representative area for each station point. Conservative remapping is applied to interpolate daily precipitation data between grid and station points over South Korea. The proposed method shows significant differences from bilinear interpola
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Lapich, A. O., та M. Y. Medvedik. "Algorithm for Searching Inhomogeneities in Inverse Nonlinear Diffraction Problems". Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki 166, № 3 (2024): 395–406. http://dx.doi.org/10.26907/2541-7746.2024.3.395-406.

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This study aims to solve the inverse problem for determining the heterogeneity of an object. The scattered field was measured outside its boundaries at a set of observation points. Both the radiation source and observation points were assumed to be located outside the object. The scattered field was modeled by solving the direct problem. The inverse problem was solved using a two-step method. Nonlinearities of various types were considered. When introducing the computational grid, the generalized grid method was applied. A numerical method for solving the problem was proposed and implemented. Th
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Klaas, Dua K. S. Y., Monzur Alam Imteaz, and Arul Arulrajah. "Evaluating the impact of grid cell properties in spatial discretization of groundwater model for a tropical karst catchment in Rote Island, Indonesia." Hydrology Research 48, no. 6 (2016): 1757–72. http://dx.doi.org/10.2166/nh.2016.250.

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Abstract To assess the effect of three grid cell properties (size, mean slope of the surface and distance between centre of grid and observation well) on groundwater models' performances, a tropical karst catchment characterized by monsoonal season in Rote Island, Indonesia was selected. Here, MODFLOW was used to develop models with five different spatial discretization schemes: 10 × 10 m, 20 × 20 m, 30 × 30 m, 40 × 40 m and 50 × 50 m. Using parameter estimation method, hydraulic conductivity and specific yield values over a selection of pilot points were estimated. The trends of the performan
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Hoffman, Ross N., Rui M. Ponte, Eric J. Kostelich, et al. "A Simulation Study Using a Local Ensemble Transform Kalman Filter for Data Assimilation in New York Harbor." Journal of Atmospheric and Oceanic Technology 25, no. 9 (2008): 1638–56. http://dx.doi.org/10.1175/2008jtecho565.1.

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Abstract Data assimilation approaches that use ensembles to approximate a Kalman filter have many potential advantages for oceanographic applications. To explore the extent to which this holds, the Estuarine and Coastal Ocean Model (ECOM) is coupled with a modern data assimilation method based on the local ensemble transform Kalman filter (LETKF), and a series of simulation experiments is conducted. In these experiments, a long ECOM “nature” run is taken to be the “truth.” Observations are generated at analysis times by perturbing the nature run at randomly chosen model grid points with errors
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Stepanova, Inna, Dmitry Lukyanenko, Igor Kolotov, Alexey Shchepetilov, and Anatoly Yagola. "On the Unique Solvability of Inverse Problems of Magnetometry and Gravimetry." Mathematics 11, no. 14 (2023): 3230. http://dx.doi.org/10.3390/math11143230.

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This article deals with the question of the unique solvability of systems of linear algebraic equations, to the solution of which many inverse problems of geophysics are reduced as a result of discretization when applying the methods of integral equations or integral representations. Examples are given of degenerate and nondegenerate systems of different dimensions that arise in the processing of magnetometric and gravimetric data from experimental observations. Conclusions are drawn about the methods for constructing the optimal grid of experimental observation points.
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Jahandari, Hormoz, and Colin G. Farquharson. "A finite-volume solution to the geophysical electromagnetic forward problem using unstructured grids." GEOPHYSICS 79, no. 6 (2014): E287—E302. http://dx.doi.org/10.1190/geo2013-0312.1.

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The application of unstructured grids can improve the solution of total field electromagnetic problems because these grids allow efficient local refinement of the mesh at the locations of high field gradients. Unstructured grids also provide the flexibility required for representing arbitrary topography and subsurface interfaces. We investigated the generalization of the standard Yee’s staggered scheme to unstructured tetrahedral-Voronoï grids using a finite-volume approach. We discretized the Helmholtz equation for the electric field in the frequency domain and solved the problem to find the
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Lin, Lijuan, Licheng Xing, Qingquan Jia, and Xuerui Zhang. "Research on the Partition Method Based on the Observation Points of Voltage Distortion in Harmonic Optimization." Journal of Physics: Conference Series 2253, no. 1 (2022): 012005. http://dx.doi.org/10.1088/1742-6596/2253/1/012005.

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Abstract With the use of a large number of power electronic equipment, the harmonics in the power grid are becoming more and more serious. There are many methods for harmonic mitigation and optimization such as Global network Optimization. When there are many nodes, the global network optimization method is more complicated. Considering the problem of large numbers of harmonic injection nodes in the power grid, this paper proposes a method of clustering the voltage distortion nodes according to correlation, and using the characteristic nodes to describe the harmonic voltage distortion in the r
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Tao, Jun, Gang Sun, Ying Hu, and Miao Zhang. "Noise Prediction for Multi-Element Airfoil Based on FW-H Equation." Applied Mechanics and Materials 52-54 (March 2011): 1388–93. http://dx.doi.org/10.4028/www.scientific.net/amm.52-54.1388.

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In this article, four observation points are selected in the flow field when predicting aerodynamic noise of a multi-element airfoil for both a coarser grid and a finer grid. Numerical simulation of N-S equations is employed to obtain near-field acoustic information, then far-field acoustic information is obtained through acoustic analogy theory combined with FW-H equation. Computation indicates: the codes calculate the flow field in good agreement with the experimental data; The finer the grid is, the more stable the calculated sound pressure level (SPL) is and the more regularly d(SPL)/d(St)
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Laakkonen, Mika-Petri, Ville Kivivirta, Antonio Calò, and Eva Pongrácz. "Smart Grid in the Arctic City." Journal of Northern Studies 16, no. 2 (2024): 55–81. http://dx.doi.org/10.36368/jns.v16i2.1125.

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This article presents the evolution of a smart grid in an artic city, and we analyze its development using the Smart Grid Reference Architecture (SGAM) and from historical, technological, and social points of view in an Arctic context. We illustrate the emergence of smart grid application and its relation to energy consumption habits and sustainability. The study includes observations from empirical research conducted using a mixed methods approach. This included two months of organizational ethnographies consisting of interviews with specialists at an electricity utility, shadowing the worker
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Rifani, Achmad, and Muhammad Rezza Ferdiansyah. "High-resolution-gridded rainfall dataset derived from surface observation by adjustment of satellite rainfall product." Proceedings of The International Conference on Data Science and Official Statistics 2023, no. 1 (2023): 516–23. http://dx.doi.org/10.34123/icdsos.v2023i1.314.

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Анотація:
A high-resolution-gridded rainfall dataset is essential for many purposes. Such as analysis of extreme weather conditions, natural-disaster mitigation, or to be used as an input to the hydrological model. Satellite-based rainfall products (e.g., Global Satellite Mapping of Precipitation-GSMaP) can solve the spatial and temporal issues despite their rainfall intensity often being under or overestimated. This research aims to provide a high-resolution rainfall dataset by adjusting the 0.1 deg GSMaP rainfall data to the surface rainfall data from several observation points in the greater Jakarta
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Дисертації з теми "Observation points grid"

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Дядін, Д. В. "Моніторинг підземних і поверхневих вод на об’єктах нафтогазопромислового комплексу". Thesis, Харківський нац. ун-т міськ. госп-ва ім. О.М. Бекетова, 2019. http://essuir.sumdu.edu.ua/handle/123456789/74949.

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Дисертація присвячена розробленню науково-методичних засад локального моніторингу підземних і поверхневих вод на території діяльності об’єктів нафтогазопромислового комплексу з метою підвищення екологічної безпеки нафтогазовидобувних регіонів України. Аналіз чинної законодавчої бази, нормативно-методичного забезпечення та наукових публікацій показав, що методичні засади локального моніторингу гідросфери на території діяльності нафтогазовидобувних об’єктів не розроблені. Встановлено, що на родовищах Східного нафтогазоносного басейну України найбільші осередки забруднення гідросфери компонентами
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Chellal, Majd. "Experimental evaluation of Kalman filter based MPPT in grid-connected PV system." Master's thesis, 2022. http://hdl.handle.net/10198/25144.

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Mestrado de dupla diplomação com a Ecóle Supérieur en Sciences Apliquées<br>Photovoltaic (PV) energy is becoming an important alternative energy source, since it is abundant in nature, non-polluting and requires low maintenance. However, it suffers from low energy conversion efficiency, which can be even lower if the photovoltaic generator does not operate around a so-called Maximum Power Point (MPP). Tracking this point, which changes its location depending on weather conditions, is a very important step in the design of a photovoltaic system. Several techniques have been investigated in
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Частини книг з теми "Observation points grid"

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Yao, Wei, and Jianwei Wu. "Airborne LiDAR for Detection and Characterization of Urban Objects and Traffic Dynamics." In Urban Informatics. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-15-8983-6_22.

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AbstractIn this chapter, we present an advanced machine learning strategy to detect objects and characterize traffic dynamics in complex urban areas by airborne LiDAR. Both static and dynamical properties of large-scale urban areas can be characterized in a highly automatic way. First, LiDAR point clouds are colorized by co-registration with images if available. After that, all data points are grid-fitted into the raster format in order to facilitate acquiring spatial context information per-pixel or per-point. Then, various spatial-statistical and spectral features can be extracted using a cu
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Habib, Maan. "Grid-on-Grid Transformation for Integrating Spatial Reference System of Multi-source Data." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-2532-2_53.

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AbstractThe accessible, up-to-date, reliable, and usable data are considered sustainability tools for developing spatial data infrastructure. Geospatial data come from multi-sources and are georeferenced using an appropriate mapping reference system. Artificial satellite positioning data are now defined on a global geocentric frame, whereas traditional geodetic networks were built on a national datum. Hence, three-dimensional (3D) coordinate transformations are required for data harmonization using control points that can be caused some discrepancies between the physical reality and represente
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Tesfaye, Argaw, and Arragaw Alemayehu. "Climate Change and Variability on Food Security of Rural Household: Central Highlands, Ethiopia." In African Handbook of Climate Change Adaptation. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_188.

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AbstractThis chapter analyzes the impact of climate change and variability on food security of rural households in the central highlands of Ethiopia taking Basona Werana district as a case study site. Data were obtained from 123 households selected using simple random sampling from three agro ecological zones. Key informant interviews and focus group discussion (FDG) were used to supplement the data obtained from household survey. The monthly rainfall and temperature data are for 56 points of 10 × 10 km grids reconstructed from weather stations and meteorological satellite observations, which
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Ho Chen-Yu and Chen Wei-Mei. "RSSI-based Localization for Wireless Sensor Networks with Grid Topologies." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2015. https://doi.org/10.3233/978-1-61499-484-8-1701.

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In Wireless Sensor Networks (WSNs), one of the important processes is localization of sensor nodes. Many applications of WSNs, such as military, medical, dynamic tracking and environment observation, need to localize sensor nodes first for collecting further information. In this paper, we propose a localization scheme in grid topologies for indoor environment. We convert a value of RSSI to its related distance, and use this information to create the corresponding Apollonius circles and calculate their intersection points as estimated positions of sensor nodes. Compared with other common locali
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Zhang, Lanyong, and Ziming Yuan. "Modeling of Ship Micro-Grid Based on Wind and Solar Power Generation Technology." In Frontiers in Artificial Intelligence and Applications. IOS Press, 2021. http://dx.doi.org/10.3233/faia210181.

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Under the influence of environmental issues and energy crises, wind and solar power generation technologies have developed rapidly. Compared with terrestrial micro-grid, this technology has relatively few applications on ships. Aiming at the problems of low energy utilization rate of ship micro-grid, imperfect control strategy, and single simulation situation, this paper uses the construction method of terrestrial micro-grid to build a detailed ship micro-grid model based on wind and solar power generation technology on the MATLAB/simulink simulation platform, and uses hill climbing search Met
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Crouch, Dora P. "Comparisons of Cities." In Geology and Settlement. Oxford University Press, 2004. http://dx.doi.org/10.1093/oso/9780195083248.003.0013.

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A brief reprise of the geological aspects, organization, physical constraints, and appearance of each city will remind us of their common and unique features. Then we can compare them by groups linked by research questions. Agrigento is built on two ridges of 120 and 320–390 m, setting generous limits not yet filled by the modern city. A plain extends from the lower ridge south to the sea. Vistas were provided along contours and across elevations. Grouping the public buildings on stony ridges, with temples above and below and government structures along the west side, made economic and aesthet
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Arias, Enrique, Jose Antonio Mateo, Ali Maqousi, and Mohammad Alauthman. "Blockchain Oraculus for Meteorological Data in Energy and Utilities With Immutability and Security." In Blockchain Applications for the Energy and Utilities Industry. IGI Global, 2025. https://doi.org/10.4018/979-8-3373-2439-5.ch003.

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Meteorological data is critical not only for climate modeling and weather prediction but also for renewable energy forecasting, demand response, and grid stability in the energy and utilities sector. Conventional data systems rely on centralized architectures vulnerable to single points of failure and poor traceability. This chapter presents a blockchain-based oraculus for storing and retrieving weather observations on an immutable ledger tailored for energy contexts. Specialized oracles, robust consensus, and secure data pipelines ensure tamper-proof storage. Testing confirms reliable retriev
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Fekik, Arezki, Mohamed Lamine Hamida, Hamza Houassine, et al. "Power Quality Improvement for Grid-Connected Photovoltaic Panels Using Direct Power Control." In Advances in Environmental Engineering and Green Technologies. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-7998-7447-8.ch005.

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This chapter displays a control strategy for a photovoltaic system (PV) linked to the network with two phases of a PWM converter, where the first phase is a DC-DC converter linked among the photovoltaic source and the DC-AC converter. The second phase is a DC-AC converter linked to the grid. The maximum power point (MPP) is tracked by DC-DC converter, which increases the DC bus voltage. The P&amp;O (perturbation and observation) technique is utilized as a direct current (DC-DC) converter controller to make the PV arrays work at greatest value of power under changing weather conditions. The DC-
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Setti, Paulo T., and Tonie van Dam. "Comparison of the Effective Isotropic Radiated Power Parameter in CYGNSS v2.1 and v3.0 Level 1 Data and Its Impact on Soil Moisture Estimation." In International Association of Geodesy Symposia. Springer Berlin Heidelberg, 2022. http://dx.doi.org/10.1007/1345_2022_176.

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AbstractThe effective isotropic radiated power (EIRP) is the measured radiated power of an antenna pointed in a specific direction. For the Global Positioning System (GPS), the EIRP is a function of the transmitted power and the gain of the transmitting antenna. It is a fundamental observation used for estimating surface reflectivity that can be used to estimate near-surface soil moisture. Most investigations of GPS EIRP for soil moisture used level 1 version 2.1 data from the eight satellites of the Cyclone Global Navigation Satellite System (CYGNSS) mission. The newer version 3.0 introduces
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Regis, Ed. "The Artificial Atoll." In Science, Secrecy, and the Smithsonian. Oxford University Press, 2023. http://dx.doi.org/10.1093/oso/9780197520338.003.0005.

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Abstract The chapter describes how two islands visited by the POSBP, Tern Island in the Northwest Hawaiian chain, and Johnston Island, in the mid-Pacific, were converted to suit the needs of the military. Johnston is one of the most isolated islands in the world, and for that reason it became the staging point for many secret US Army experiments, including biological warfare tests. It was also used as a launch site for atmospheric nuclear bomb blasts. Tern Island was converted from an irregularly-shaped tropical isle into an air base that looks much like an aircraft carrier steaming through th
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Тези доповідей конференцій з теми "Observation points grid"

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Zhu, Zheng, Qijun Zhao, Simeng Jing, Xin Yuan, and Bo Wang. "Analyses on Aeroacoustic Characteristics of Coaxial Rotor in Forward Flight." In Vertical Flight Society 74th Annual Forum & Technology Display. The Vertical Flight Society, 2018. http://dx.doi.org/10.4050/f-0074-2018-12665.

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Based on CFD method and FW-Hpds equations, a numerical method for predicting aeroacoustic characteristics of coaxial rotor is established. In order to accurately simulate the flowfield of coaxial rotor, several techniques including moving-embedded grids, implicit LU-SGS scheme, ROE-MUSCL scheme and Spalart-Allmaras turbulence model are adopted to solve the RANS equations. The aeroacoustic characteristics of coaxial rotor in forward flight are calculated and analyzed by using FW-Hpds equations. The calculated acoustic characteristics of the AH-1/OLS model in forward flight for validation are in
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2

Tchaye-Kondi, Jude, Yanlong Zhai, and Liehuang Zhu. "A New Hashing based Nearest Neighbors Selection Technique for Big Datasets." In 11th International Conference on Computer Science and Information Technology (CCSIT 2021). AIRCC Publishing Corporation, 2021. http://dx.doi.org/10.5121/csit.2021.110708.

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KNN has the reputation of being a simple and powerful supervised learning algorithm used for either classification or regression. Although KNN prediction performance highly depends on the size of the training dataset, when this one is large, KNN suffers from slow decision making. This is because each decision-making process requires the KNN algorithm to look for nearest neighbors within the entire dataset. To overcome this slowness problem, we propose a new technique that enables the selection of nearest neighbors directly in the neighborhood of a given data point. The proposed approach consis
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Chen, Larry, and Urmila Ghia. "Composite Solution Procedure for 3-D Flow Simulations on a Multi-Box Grid." In ASME 2006 2nd Joint U.S.-European Fluids Engineering Summer Meeting Collocated With the 14th International Conference on Nuclear Engineering. ASMEDC, 2006. http://dx.doi.org/10.1115/fedsm2006-98441.

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Fluid flows in biological systems are typically complex, due to factors such as non-Newtonian behavior of biochemical fluids and complex geometry, as well as the interaction of muscles and fluid. With the advent of modern computational technology, these problems are gradually resolved. The present research illustrates two such examples. Grid generation is essential for conducting numerical simulation of fluid flow. In the present research, a new grid generation technique is developed and implemented into a flow solver. This technique enables one to create a grid for complex geometry using only
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Zhang, W., V. Srinivasan, L. L. Zheng, and S. Sampath. "An Investigation of Particle Injection and Resulting In-Flight Particle Behavior During Air Plasma Spraying." In ASME 2006 International Mechanical Engineering Congress and Exposition. ASMEDC, 2006. http://dx.doi.org/10.1115/imece2006-13834.

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In this article we present our studies on the role of particle injection on the in-flight particle characteristics in an external orthogonally injected air plasma spray system. The influence of carrier gas on the in-flight particle state has been investigated, experimentally and using simulation, for Yttria Stabilized Zirconia (YSZ) thermal spray powder processed in an Ar-H2 plasma. Diagnostic tools such as IPP and SPT have been used to measure the plume characteristics and ensemble temperature while DPV-2000 has been used to measure the distributions of individual particle characteristics suc
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Tsila, Anna, and Vitalii Shpyg. "Interannual variability of total and low cloudiness over large cities of Ukraine: an intercomparison of observations and reanalysis." In International Conference of Young Scientists on Meteorology, Hydrology and Environmental Monitoring. Ukrainian Hydrometeorological Institute, 2023. http://dx.doi.org/10.15407/icys-mhem.2023.026.

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Cloud cover is one of the important climate indicators. The characteristics of the cloud cover regime can be used to determine the peculiarities of atmospheric circulation, the planetary albedo of the climate system, the effective radiation of the underlying surface and the possible distribution of precipitation, so quantifying changes in cloud cover in modern conditions is relevant. Changes in circulation indices should affect changes in both the quantitative indicators of cloud cover and the repeatability of the main cloud types. An analysis of climatic studies of cloud cover and its actual
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Iskra, Andrej, and Helena Gabrijelčič Tomc. "HEATMAP ANALYSIS OF PROFILE FACIAL IMAGES." In INTERNATIONAL SYMPOSIUM ON GRAPHIC ENGINEERING AND DESIGN. UNIVERSITY OF NOVI SAD FACULTY OF TECHNICAL SCIENCES DEPARTMENT OF GRAPHIC ENGINEERING AND DESIGN 21000 Novi Sad, Trg Dositeja Obradovića 6, 2024. http://dx.doi.org/10.24867/grid-2024-p41.

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Facial images are a very common element on the World Wide Web and in mobile applications. With the widespread use of eye-tracking systems, research in the field of viewing and memorizing facial images has greatly expanded. The main issue in analyzing facial images is to understand the way of viewing, memorizing and recognizing. Most of the research is done for the frontal facial images, but we focused on profile facial images. One of the most widely used methods for determining memorization and recognition of facial images is the internal facial feature method. However, in our research we have
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Singh, Lovekesh, and Mohammad Hossain. "A MATLAB-Based User Interface to Study the Multi-Reflections and Light Absorption in Textured Solar Cell Surfaces." In ASME 2024 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/imece2024-145782.

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Abstract Improving the efficiency of solar cells is important as it is a sustainable way of energy production with a relatively low power conversion efficiency (PCE). To enhance the efficiency of solar cells, textures can be introduced on the surface which can minimize light ray reflectance, leading to increased light absorption and improvement in overall efficiency. Introduction of texture can also improve the hydrophobicity of the surface which can enhance the self-cleaning capability of solar panels. In this study, a MATLAB-based user interface is developed to facilitate assessing the sunli
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Akiyama, Toyokazu, Yuuichi Teranishi, Shingo Okamura, and Shinji Shimojo. "An Approach for Filtering Inaccurate Access Point Observation Report in WiFi Positioning System." In 2010 International Conference on P2P, Parallel, Grid, Cloud and Internet Computing (3PGCIC). IEEE, 2010. http://dx.doi.org/10.1109/3pgcic.2010.88.

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Qin, Chen, Xiaoqing Han, Xinzhe Zhang, and Wanyu Tao. "Grid-connected 3-level active neutral-point-clamped converter converter sliding mode control based on disturbance observation." In Ninth International Symposium on Sensors, Mechatronics, and Automation System (ISSMAS 2023), edited by Lijia Pan and Zaifa Zhou. SPIE, 2024. http://dx.doi.org/10.1117/12.3015107.

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Budiman, Ose, Allende G. A. Azhar, and Abdul Latif Setyadi. "Representative Elementary Volume as Key Parameters to Improve Grid Stability on Multi-Point Statistic Based Reservoir Models." In International Petroleum Technology Conference. IPTC, 2024. http://dx.doi.org/10.2523/iptc-23770-ms.

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Abstract Reservoir modelling plays a significant role in the investigation of reservoir heterogeneity related to the distribution of reservoir zones and lateral and vertical variations in geological and petrophysical properties of the reservoirs. Data and information derived from the core, well logs, and seismic could be used for facies and petrophysical modelling of these reservoirs. How to organize the data, how to apply the limited spatial offered by the data, and how to develop a comprehensive reservoir model by using only a few points of data are all different problems when using this dat
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Звіти організацій з теми "Observation points grid"

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Collins, Clarence O., and Tyler J. Hesser. altWIZ : A System for Satellite Radar Altimeter Evaluation of Modeled Wave Heights. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/39699.

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This Coastal and Hydraulics Engineering Technical Note (CHETN) describes the design and implementation of a wave model evaluation system, altWIZ, which uses wave height observations from operational satellite radar altimeters. The altWIZ system utilizes two recently released altimeter databases: Ribal and Young (2019) and European Space Agency Sea State Climate Change Initiative v.1.1 level 2 (Dodet et al. 2020). The system facilitates model evaluation against 1 Hz1 altimeter data or a product created by averaging altimeter data in space and time around model grid points. The system allows, fo
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Calafat, Francisco Mir, Thomas Frederikse, and Kevin Horsburgh. Mediterranean trend and acceleration sea-level estimates. EuroSea, 2023. http://dx.doi.org/10.3289/eurosea_d5.2_v2.

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Sea-level change is geographically non-uniform, with regional departures that can reach several times the global average rate of change. Characterizing this spatial variability and understanding its causes is crucial to the design of adaptation strategies for sea-level rise. This, as it turns out, is no easy feat, primarily due to the sparseness of the observational sea-level record in time and space. Long tide gauge records are restricted to a few locations along the coast. Satellite altimetry offers a better spatial coverage but only since 1992. In the Mediterranean Sea, the tide gauge netwo
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