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1821
Morphological analysis of Mahabad river channeland the impact of Dam construction
Published 2015-09-01“…For this purpose, the morphological changes of river channel were recognized by the areal photographices and satellite imageduring different times periods. The relationship between effective variables on the channel pattern such as, discharge, slope, stream power,stream bank clay content and width of bed, and observed pattern changes were analyses. …”
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1822
Impact of urban development and land use changes on the climate of the city of Shiraz and Fasa
Published 2016-03-01“…The study examined the effects of land use changes and land cover types in the 23-year period (1987-2010) using images of LANDSAT satellite of TM sensor on temperature pattern in two cities. …”
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1823
Changements côtiers et inondations suite au passage d’un ouragan extrême (Irma, 2017) aux Petites Antilles
Published 2020-04-01“…The method was based on the analysis of satellite images and Unmanned Aerial Vehicle surveys. …”
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1824
MORPHOLOGICAL CHANGES ON THE DANUBE DELTA BIOSPHERE RESERVE COAST – ACTUAL SYNTHESIS
Published 2014-12-01“…To identify portions of advancement and retreat, and setting the corresponding annual rates, existing topographic map series for a period of over 150 years, hydrographic measurements for 30 years and series of satellite images starting from 1975 were used.…”
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1825
Technical perspective and simulation platform for 5G integrated communication and high precision localization
Published 2022-08-01“…Providing integrated communication and positioning services for smart terminals using widely deployed 5G infrastructure has been a promising way during the 5G standard evolution.Especially in an indoor scenario where the global navigation satellite system fails, high-accuracy localization services can be provided based on the 5G infrastructure, and thus, 5G integrated communication and localization will enable much vertical industry applications.However, there still exist many technical challenges for providing sub-meter-level 5G localization in practical applications.In addition, there is no unified testbed or platform to support the development of 5G localization.Firstly, the challenges that 5G positioning methods face in achieving indoor sub-meter accuracy were analyzed.Then the design of 5G positioning simulator focusing on 5G classical scenarios was introduced.Numerical results show that the uplink-angle-of-arrival-based approach can achieve sub-meter localization accuracy.Finally, the industrialization prospects of 5G indoor high-accuracy positioning technology were proposed.…”
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1826
Vulnerability assessment and zoning of developed and susceptible contaminated karstic (Case study: Ravenscar watershed)
Published 2023-03-01“…The method of work is that after the necessary processing, using the OWA method and applying weights obtained through the ANP model, the zoning is done After designing the zoning map, using the satellite imagery of 2007 and2015, the development of human development areas in the developed karstic areas has been evaluated The results of this study indicate that most of the studied basin, especially in northern and western areas of the basin, are highly and relatively developed in the class, The calculation of the area of man-made areas suggests that in2007, about 2.6 km of occupied areas of man-made industrial zones have been occupied which, according to the growing population, increased to 3.8 km in2015, human-made areas have been extracted in developed artisanal areas…”
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1827
Smaller Fleas: Viruses of Microorganisms
Published 2012-01-01“…These viruses of microorganisms, or VoMs, in fact exist as the world’s most abundant somewhat autonomous genetic entities and include the viruses of domain Bacteria (bacteriophages), the viruses of domain Archaea (archaeal viruses), the viruses of protists, the viruses of microscopic fungi such as yeasts (mycoviruses), and even the viruses of other viruses (satellite viruses). In this paper we provide an introduction to the concept of viruses of microorganisms, a.k.a., viruses of microbes. …”
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1828
Delineation of groundwater recharge zones in lateritic terrains using geospatial techniques
Published 2025-01-01“…To address this important problem, satellite data (Landsat 8 OLI, SRTM DEM) and geospatial techniques were employed to assess the hydrogeological potential. …”
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1829
Verification of CALIOP, MODIS, MISR, and OMI aerosol optical depth retrievals against Sun-photometer data over Zanjan
Published 2021-09-01“…In this paper, aerosol optical depth measured by Caliop, MODIS, MISR, and OMI satellite sensors is compared with Sun-photometer data located in the Institute for Advanced Studies in Basic Sciences (IASBS) from December 2009 to December 2013 over Zanjan city. …”
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1830
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1831
Alteração da paisagem do município de Candeias do Jamari em Rondônia: uma análise temporal dos anos de 2007 a 2020.
Published 2021-08-01“…The methodological basis is a qualitative and quantitative approach of the data and is anchored in satellite images and maps of hot spots produced from a set of data (2007, 2011, 1015, 2019 and 2020), where densities of the areas of study were calculated using the kernel density estimator, present in the Spatial Analyst extension of the free software QGIS 2.8.9 WIEN. …”
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1832
NEW STRATEGY THE FOR DESIGNATION OF THE INTEGRITY PARAMETER IN SBAS POSITIONING IN AIR TRANSPORT
Published 2024-03-01“…The article shows the results of a study on the determination of SBAS satellite positioning integrity parameters as a HPL and VPL protection levels. …”
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1833
Rising infrastructure inequalities accompany urbanization and economic development
Published 2025-01-01“…However, our understanding of attendant infrastructure inequalities is limited, highlighting a critical knowledge gap in the sustainable development implications of urbanization. Using satellite data from 2000 to 2019, we examine country-level population-adjusted biases in infrastructure distribution within and between regions of varying urbanization levels and derive four key findings. …”
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1834
Investigation and Validation of Mission Evaluation Models for Space Close-Range Inspection
Published 2024-01-01“…However, the evaluation models in previous studies are too simple such as that they are usually without considering dynamic changes in the satellite orbit relative motion. Besides, these studies fail to build a comprehensive evaluation model for the whole inspection task process. …”
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1835
Induced spoofing detection method based on error valuation accumulation open-loop correction
Published 2022-09-01“…Induced satellite spoofing interference can induce the aircraft to gradually deviate from the predetermined trajectory, and it is difficult to detect.So timely and effective detection of interference is the guarantee of flight safety.Based on the existing tightly integrated navigation system, an error valuation accumulation open-loop correction structure was designed.It was proved that the performance of the designed structure was equivalent to the performance of traditional tightly integrated navigation system with closed-loop correction.On the basis of designed structure, combining the tightly integrated navigation system with the adaptive sequential probability ratio test method, an induced spoofing detection method based on the error valuation accumulation open-loop correction was proposed.A spoofing detection statistic for induced spoofing detection was constructed by integrating the tightly integrated navigation information with other navigation information that was not affected by spoofing interference.Simulation results show that the designed open-loop correction structure can avoid the divergence problem of the integrated navigation filter caused by the inertial navigation system error accumulated over time.Moreover, the proposed spoofing detection method can improve the detection effect of the algorithm of the small induced spoofing under the “worst” case further.…”
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1836
Measuring spatial - temporal of Yazd urban form using spatial metrics
Published 2015-04-01“…To achieve the main objective of the paper, measuring Yazd growth and expansion by spatial metrics, it has used remote sensing data and satellite imageries and ArcGIS software. The conclusion revealed that in four periods of study, complexity or irregularity of the urban patch shapes has increased, centrality or average distance of the dispersed parts to the city center has decreased, compactness or the number and area of patches their distance from each other has decreased, porosity or ratio of open space has increased and finally population density of city has decreased in a large amount. …”
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1837
Flood Detection Based on Unmanned Aerial Vehicle System and Deep Learning
Published 2022-01-01“…There is a need to develop an approach that could instantly detect flooded extent. Satellite remote sensing has been useful in emergency responses; however, with significant weakness due to long revisit period and unavailability during rainy/cloudy weather conditions. …”
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1838
Comparing Surface Height Used in NCAR Climate Model with That Observed by ICEsat: Effects on Skin Temperature Simulation
Published 2009-01-01“…It first compares ICEsat surface height measurements over Greenland with those used by the model and reveals that the surface height of Greenland prescribed in the National Center for Atmospheric Research (NCAR) Community Climate System Model/Community Land Model version 3 (CCSM/CLM3) differs greatly from the satellite measurements from National Aeronautics and Space Administration (NASA) ICEsat at edges and central glacier regions. …”
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1839
Assessment of hydromorphological conditions of the river using the MQI method (Case study area: JAJROOD River)
Published 2020-03-01“…Accordingly, Landsat 8 satellite images of 2018 and Landsat 4 in 1976 were prepared and were take placed several field observations. …”
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1840
The Prediction of Storm‐Time Thermospheric Mass Density by LSTM‐Based Ensemble Learning
Published 2022-03-01“…The results show that the LSTM‐based ensemble learning model (LELM) is robust under different geomagnetic activity levels and has good generalization ability for the different satellite data set. The prediction accuracy of the LELM is proved to be better than a common‐used empirical model (NRLMSISE‐00). …”
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