نتایج جستجو برای: index overlay

تعداد نتایج: 405282  

Journal: :iranian journal of earth science 0
misagh mirzaei department of mining engineering, south tehran branch, islamic azad university, tehran, iran peyman afzal camborne school of mines, university of exeter, penryn, uk ahmad adib department of mining engineering, south tehran branch, islamic azad university, tehran, iran masoumeh khalajmasoumi department of geology, sciences and research branch, islamic azad university, tehran, iran afshar zia zarifi department of mining engineering, lahijan branch, islamic azad university, lahijan, iran

the aim of this study is prospecting of iron and manganese in the balvard 1:100000 sheet which is situated in sanandaj - sirjan structural zone utilizing index overlay and fuzzy logic methods in the gis. in this study, the layers for integration, alterations, geological, geophysical, geochemical and structural data based on stream sediments, airborne magnetometeric and remote sensing studies. b...

Afshar Zia Zarifi Ahmad Adib Masoumeh Khalajmasoumi Misagh Mirzaei Peyman Afzal

The aim of this study is prospecting of iron and manganese in the Balvard 1:100000 sheet which is situated in Sanandaj - Sirjan structural zone utilizing Index Overlay and Fuzzy Logic methods in the GIS. In this study, the layers for integration, alterations, geological, geophysical, geochemical and structural data based on stream sediments, airborne magnetometeric and remote sensing studies. B...

Ali Vafaee Nejad Hamid Ebadi Mohammad Sa'di Mesgari Roozbeh Shad

Different industrial decision makers and managers in our country, try to select and organize locations for aggregating industrial units, estates and areas with respect to land use planning visions and industrial development strategies. In this regard, considering large quantity of the input data and diverse criteria affecting this application, it is complicated and difficult to optimally make d...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده مهندسی 1391

منطقه مورد مطالعه در شمال غربی زون متالوژنی سنندج- سیرجان،بین ´20 °45 تا´20 °46 طول شرقی و °36 تا´45 °36 عرض شمالی واقع شده است.هدف از این تحقیق مدل سازی و تلفیق داده های اکتشافی در محیط gis جهت پتانسیل یابی طلای تیپ کوهزایی در منطقه آلوت- سقز می باشد. از آنجا که در محدوده سقز- آلوت، پی جویی در مقیاس ناحیه ای صورت گرفته است و با توجه به پیچیدگی های متالوژنیکی این منطقه، اعمال هرگونه ضریب و وزن ...

ژورنال: :فصلنامه علوم و تکنولوژی محیط زیست 2014
مهدی هاشمی علی اصغر آل شیخ محمدرضا ملک

زمینه و هدف: بحران های طبیعی همچون زلزله، طوفان و سیل قادر به تحمیل خسارات جبران ناپذیری به انسان و محیط زیست هستند. از این رو ارزیابی ریسک به منظور مدیریت مناسب و کاهش خسارات، حیاتی است. ارزیابی ریسک با فرایند برآورد احتمال وقوع یک رویداد و اهمیت یا شدت اثرات زیان آور آن مشخص می شود. مواد و روش ها:  در این تحقیق به منظور ارزیابی شدت آسیب پذیری از زلزله، پارامترهای مؤثر شناسایی و با استفاده از...

Journal: :نشریه دانشکده فنی 0
روزبه شاد دانشگاه خواجه نصیر حمید عبادی دانشگاه خواجه نصیر محمد سعدی مسگری دانشگاه خواجه نصیر علیرضا وفائی نژاد دانشگاه خواجه نصیر

different industrial decision makers and managers in our country, try to select and organize locations for aggregating industrial units, estates and areas with respect to land use planning visions and industrial development strategies. in this regard, considering large quantity of the input data and diverse criteria affecting this application, it is complicated and difficult to optimally make d...

Journal: :journal of tethys 0

the south khorasan province is located in eastern iran. identifying potential geothermal zones is a pre-requisite for any thermal power plant and recreation center project. geothermal exploration involves a high degree of uncertainty and financial risk, and requires reliable exploration data to constrain development decisions. the present study focuses on identifying the potential zones of geot...

Behnam Sadeghi Masoumeh Khalajmasoumi Parviz Moarefvand Peyman Afzal

GIS is considered an important technique as well as a prerequisite for cost effective mineral exploration and determination of high potential areas. The purpose of this research is to determine high potential iron zones for detailed exploration using index overlay GIS method. Index Overlay was used to combine the geology, topography (scale: 1:1,000), lineaments, remote sensing (ASTER and ETM+) ...

Journal: :Applied optics 1999
D Flannery S W James R P Tatam G J Ashwell

Fiber-optic chemical sensing has been demonstrated with a side-polished single-mode optical fiber, evanescently coupled to chemically sensitive Langmuir-Blodgett (LB) overlay waveguides. The sensors exhibit a channel-dropping response centered on a wavelength that is dependent on the thickness and the refractive index of the overlay waveguide. It has been shown that pH-sensitive organic dyes pr...

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