نتایج جستجو برای: سنتینل-1 (Sentinel-1)

تعداد نتایج: 2764333  

دسترسی به نقشه مناسب از عوارض و پدیده ­های زمینی بسیار مهم است، چراکه این عوارض و فرآیند حاکم بر آن‌ها منشأ بسیاری از مخاطرات و منابع محیطی هستند. هدف این تحقیق، مقایسه داده ­های اپتیک و رادار در استخراج عوارض و پدیده ­های زمینی است. از تصویر پانزده متری باند پن‌کروماتیک لندست 8 (OLI) به‌عنوان تصویر اپتیک و تصویر باند C سنجنده سنتینل-1 (Sentinel-1) برای تصویر رادار باقدرت تفکیک 22×20 متری هر پی...

گنبدهای نمکی یکی از زیباترین پدیده های طبیعی است. باوجود رخنمون یافتن تعداد زیادی گنبد نمکی در ناحیه زاگرس، هنوز بسیاری از آن‌ها مدفون می باشند. به دلیل تکتونیک فعال زاگرس، روند حرکتی و صعودی گنبدهای نمکی متوقف نشده و ادامه دارد. در این تحقیق با استفاده از روش  تداخل­سنجی راداری و باهدف پایش تغییرات پوسته زمین در ناحیه زاگرس، یکی از گنبدهای نمکی احتمالی در حال صعود مورد شناسایی قرار گرفت. بدین ...

Journal: :iranian journal of nuclear medicine 2012
vahid reza dabbagh kakhki ali jangjoo alireza tavassoli mahdi asadi keyvan sadri

introduction: several radiotracers are being used for sentinel node mapping in patients with breast cancer. in the current study, we reported our experience with 99m-tc phytate for sentinel node mapping in mashhad university of medical sciences. methods: all breast cancer patients who underwent sentinel node mapping using 99m-tc phytate were included. all patients received intradermal peri-areo...

Journal: :Procedia Computer Science 2016

Introduction: Several radiotracers are being used for sentinel node mapping in patients with breast cancer. In the current study, we reported our experience with 99m-Tc Phytate for sentinel node mapping in Mashhad University of Medical Sciences. Methods: All breast cancer patients who underwent sentinel node mapping using 99m-Tc Phytate were included. All patients received intradermal peri-are...

2014
Dirk Geudtner Ramón Torres Björn Rommen

In the framework of the EU/ESA co-funded Copernicus program, ESA is undertaking the development of a series of five Sentinel missions with the objective to provide routinely Earth observation data for the implementation of operational Copernicus and national services. The Copernicus services comprise mapping and forecasting activities for Land, Marine, Atmosphere, Emergency, Security, and Clima...

Journal: :Advances in Space Research 2022

Copernicus Sentinel–1 is a C-Band Synthetic Aperture Radar (SAR) satellite mission within the European Programme. The two satellites Sentinel-1A and -1B were launched in April 2014 2016, respectively. POD (Precise Orbit Determination) Service responsible for determination of orbital auxiliary products required by Payload Data Ground Segment (PDGS). Precise orbits are determined based on dual-fr...

Journal: :middle east journal of cancer 0
sedigheh tahmasebi general surgery department, shiraz university of medical sciences, shiraz, iran mohammad haghighifard general surgery department, shiraz university of medical sciences, shiraz, iran abdolrasoul talei general surgery department, shiraz university of medical sciences, shiraz, iran

background : sentinel lymph node biopsy is a technique used to identify the axillary node most likely to contain tumor cells that have metastasized from a primary carcinoma of the breast. this technique provides accurate staging with fewer complications than axillary dissection and may result in decreased costs. we designed the present study to determine the accuracy and success rate of a combi...

2008
Francesco De Zan Andrea Monti Guarnieri Fabio Rocca Stefano Tebaldini

The short revisit time in the ERS Tandem experiment shows the data quality reachable when the temporal coherence is high. Sentinel 1 [5] will have a revisit time of 12 days. Using the 3 days repeat data from the ice phase of ERS1, we evaluated the improvements for distributed scatterers interferometry. Slow ground motion, visible in many successive images, allows the estimation of the subsidenc...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید