摘要 :
In the frame of the Copernicus programme, ESA has developed and launched the Sentinel-2 optical imaging mission that delivers optical data products designed to feed downstream services mainly related to land monitoring, emergency ...
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In the frame of the Copernicus programme, ESA has developed and launched the Sentinel-2 optical imaging mission that delivers optical data products designed to feed downstream services mainly related to land monitoring, emergency management and security. The Sentinel-2 mission is the constellation of two polar orbiting satellites Sentinel-2A and Sentinel-2B, each one equipped with an optical imaging sensor MSI (Multi-Spectral Instrument). Sentinel-2A was launched on June 23rd, 2015 and Sentinel-2B followed on March 7th, 2017. With the beginning of the operational phase the constellation of both satellites enable image acquisition over the same area every 5 days or less. To use unique potential of the Sentinel-2 data for land applications and ensure the highest quality of scientific exploitation, accurate correction of satellite images for atmospheric effects is required. Therefore the atmospheric correction processor Sen2Cor was developed by Telespazio VEGA Deutschland GmbH on behalf of ESA. Sen2Cor is a Level-2A processor which main purpose is to correct single-date Sentinel-2 Level-1C Top-Of-Atmosphere (TOA) products from the effects of the atmosphere in order to deliver a Level-2A Bottom-Of-Atmosphere (BOA) reflectance product. Additional outputs are an Aerosol Optical Thickness (AOT) map, a Water Vapour (WV) map and a Scene Classification (SCL) map with Quality Indicators for cloud and snow probabilities. Telespazio France and DLR have teamed up in order to provide the calibration and validation of the Sen2Cor processor. Here we provide an overview over the Sentinel-2 data, processor and products. It presents some processing examples of Sen2Cor applied to Sentinel-2 data, provides up-to-date information about the Sen2Cor release status and recent validation results at the time of the SPIE Remote Sensing 2017.
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摘要 :
In the frame of the Copernicus programme, ESA has developed and launched the Sentinel-2 optical imaging mission that delivers optical data products designed to feed downstream services mainly related to land monitoring, emergency ...
展开
In the frame of the Copernicus programme, ESA has developed and launched the Sentinel-2 optical imaging mission that delivers optical data products designed to feed downstream services mainly related to land monitoring, emergency management and security. The Sentinel-2 mission is the constellation of two polar orbiting satellites Sentinel-2A and Sentinel-2B, each one equipped with an optical imaging sensor MSI (Multi-Spectral Instrument). Sentinel-2A was launched on June 23~(rd), 2015 and Sentinel-2B followed on March 7~(th), 2017. With the beginning of the operational phase the constellation of both satellites enable image acquisition over the same area every 5 days or less. To use unique potential of the Sentinel-2 data for land applications and ensure the highest quality of scientific exploitation, accurate correction of satellite images for atmospheric effects is required. Therefore the atmospheric correction processor Sen2Cor was developed by Telespazio VEGA Deutschland GmbH on behalf of ESA. Sen2Cor is a Level-2A processor which main purpose is to correct single-date Sentinel-2 Level-1C Top-Of-Atmosphere (TOA) products from the effects of the atmosphere in order to deliver a Level-2A Bottom-Of-Atmosphere (BOA) reflectance product. Additional outputs are an Aerosol Optical Thickness (AOT) map, a Water Vapour (WV) map and a Scene Classification (SCL) map with Quality Indicators for cloud and snow probabilities. Telespazio France and DLR have teamed up in order to provide the calibration and validation of the Sen2Cor processor. Here we provide an overview over the Sentinel-2 data, processor and products. It presents some processing examples of Sen2Cor applied to Sentinel-2 data, provides up-to-date information about the Sen2Cor release status and recent validation results at the time of the SPIE Remote Sensing 2017.
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摘要 :
In the frame of the Copernicus programme, ESA has developed and launched the Sentinel-2 optical imaging mission that delivers optical data products designed to feed downstream services mainly related to land monitoring, emergency ...
展开
In the frame of the Copernicus programme, ESA has developed and launched the Sentinel-2 optical imaging mission that delivers optical data products designed to feed downstream services mainly related to land monitoring, emergency management and security. The Sentinel-2 mission is the constellation of two polar orbiting satellites Sentinel-2A and Sentinel-2B, each one equipped with an optical imaging sensor MSI (Multi-Spectral Instrument). Sentinel-2A was launched on June 23~(rd), 2015 and Sentinel-2B followed on March 7~(th), 2017. With the beginning of the operational phase the constellation of both satellites enable image acquisition over the same area every 5 days or less. To use unique potential of the Sentinel-2 data for land applications and ensure the highest quality of scientific exploitation, accurate correction of satellite images for atmospheric effects is required. Therefore the atmospheric correction processor Sen2Cor was developed by Telespazio VEGA Deutschland GmbH on behalf of ESA. Sen2Cor is a Level-2A processor which main purpose is to correct single-date Sentinel-2 Level-1C Top-Of-Atmosphere (TOA) products from the effects of the atmosphere in order to deliver a Level-2A Bottom-Of-Atmosphere (BOA) reflectance product. Additional outputs are an Aerosol Optical Thickness (AOT) map, a Water Vapour (WV) map and a Scene Classification (SCL) map with Quality Indicators for cloud and snow probabilities. Telespazio France and DLR have teamed up in order to provide the calibration and validation of the Sen2Cor processor. Here we provide an overview over the Sentinel-2 data, processor and products. It presents some processing examples of Sen2Cor applied to Sentinel-2 data, provides up-to-date information about the Sen2Cor release status and recent validation results at the time of the SPIE Remote Sensing 2017.
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This case study represents the potential impact of one energy assessment conducted under West Virginia's Save Energy Now Regional Partnership program for delivery of "enhanced" industrial energy efficiency assessments and implemen...
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This case study represents the potential impact of one energy assessment conducted under West Virginia's Save Energy Now Regional Partnership program for delivery of "enhanced" industrial energy efficiency assessments and implementation. The enhanced assessment process developed in the project provides flexible, multi-level assistance ranging from plant-wide comprehensive assessments to individual system consultations. The flexibility of the enhanced assessment process is innovative in its ability to deliver energy efficiency services at varying stages of the assessment process including pre-assessment, assessment, and post-assessment with a strong focus on facilitating the implementation of energy efficiency measures. A post-assessment period emphasizes an ongoing relationship with client companies to provide technical information, implementation assistance, and training on measurement and verification of energy savings. The case study presented highlights the results of this assessment process conducted at a steel mini-mill by the WVU assessment team.
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This research aims to find out the implementation of self-assessment and ability of self-assessment of student with special educational needs (SEN) at inclusive school. This research applies study-case approach to 10 SEN with ment...
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This research aims to find out the implementation of self-assessment and ability of self-assessment of student with special educational needs (SEN) at inclusive school. This research applies study-case approach to 10 SEN with mental retardation variation, autism, muscular dystrophy, slow learner, and low vision in semester 2 in 2017/2018 school year in Tumbuh High School (THS). This article defines the implementation and ability of self-assessment of SEN viewed from aspects of attitude, motivation, anxiety, concentration, time-management, self-assessment, and searching of learning source. The research results shows that the ability of self-assessment is quite varied since THS applies the medium self-assessment with project strategy adapted from International Middle Years Curriculum (IMYC).
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The courses and materials of clogging on the inner wall of three type SEN during special Steel continuous casting were analyzed and examined in this study. The clogging process of SEN can be divided into two steps: firstly the mol...
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The courses and materials of clogging on the inner wall of three type SEN during special Steel continuous casting were analyzed and examined in this study. The clogging process of SEN can be divided into two steps: firstly the molten steel and the inclusions in steel react with the refractory to form a reaction layer composed of Al_2O_3-CaO compound and/or solid steel on the inner surface of the nozzle, then the inclusions in the molten steel are built-up on the reaction layer and form clogging. For the general Al_2O_3-C nozzle, conventional anti-clogging nozzle with CaZrO_3-C or spinel inner wall there are similar clogging phenomena during special steel continuous casting. A new anti-clogging SEN with a composite material of spinel and special additive as the inner wall was developed and applied to the special steel continuous casting, which showed a good anti-clogging results.
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摘要 :
The courses and materials of clogging on the inner wall of three type SEN during special Steel continuous casting were analyzed and examined in this study. The clogging process of SEN can be divided into two steps: firstly the mol...
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The courses and materials of clogging on the inner wall of three type SEN during special Steel continuous casting were analyzed and examined in this study. The clogging process of SEN can be divided into two steps: firstly the molten steel and the inclusions in steel react with the refractory to form a reaction layer composed of Al_2O_3-CaO compound and/or solid steel on the inner surface of the nozzle, then the inclusions in the molten steel are built-up on the reaction layer and form clogging. For the general Al_2O_3-C nozzle, conventional anti-clogging nozzle with CaZrO_3-C or spinel inner wall there are similar clogging phenomena during special steel continuous casting. A new anti-clogging SEN with a composite material of spinel and special additive as the inner wall was developed and applied to the special steel continuous casting, which showed a good anti-clogging results.
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摘要 :
The courses and materials of clogging on the inner wall of three type SEN during special Steel continuous casting were analyzed and examined in this study. The clogging process of SEN can be divided into two steps: firstly the mol...
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The courses and materials of clogging on the inner wall of three type SEN during special Steel continuous casting were analyzed and examined in this study. The clogging process of SEN can be divided into two steps: firstly the molten steel and the inclusions in steel react with the refractory to form a reaction layer composed of Al{sub}2O{sub}3-CaO compound and/or solid steel on the inner surface of the nozzle, then the inclusions in the molten steel are built-up on the reaction layer and form clogging. For the general Al{sub}2O{sub}3-C nozzle, conventional anti-clogging nozzle with CaZrO{sub}3-C or spinel inner wall there are similar clogging phenomena during special steel continuous casting. A new anti-clogging SEN with a composite material of spinel and special additive as the inner wall was developed and applied to the special steel continuous casting, which showed a good anti-clogging results.
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摘要 :
The courses and materials of clogging on the inner wall of three type SEN during special Steel continuous casting were analyzed and examined in the study. The clogging process of SEN can be divided into two steps: firstly the molt...
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The courses and materials of clogging on the inner wall of three type SEN during special Steel continuous casting were analyzed and examined in the study. The clogging process of SEN can be divided into two steps: firstly the molten steel and the inclusions in steel react with the refractory to form a reaction layer composed of Al2O3-CaO compound and/or solid steel on the inner surface of the nozzle, then the inclusions in the molten steel are build-up on the reaction layer and form clogging. For the general Al2O3-C nozzle, conventional anti-clogging nozzle with CaZrO3-C or spinel inner wall there are similar clogging phenomena during special steel continuous casting. A new anti-clogging SEN with a composite material of spinel and special additive as the inner wall was developed and applied to the special steel continuous casting, which shown a good anti-clogging results.
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摘要 :
The courses and materials of clogging on the inner wall of three type SEN during special Steel continuous casting were analyzed and examined in the study. The clogging process of SEN can be divided into two steps: firstly the molt...
展开
The courses and materials of clogging on the inner wall of three type SEN during special Steel continuous casting were analyzed and examined in the study. The clogging process of SEN can be divided into two steps: firstly the molten steel and the inclusions in steel react with the refractory to form a reaction layer composed of Al2O3-CaO compound and/or solid steel on the inner surface of the nozzle, then the inclusions in the molten steel are build-up on the reaction layer and form clogging. For the general Al2O3-C nozzle, conventional anti-clogging nozzle with CaZrO3-C or spinel inner wall there are similar clogging phenomena during special steel continuous casting. A new anti-clogging SEN with a composite material of spinel and special additive as the inner wall was developed and applied to the special steel continuous casting, which shown a good anti-clogging results.
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