Results 31 to 40 of about 2,033 (159)

The role of space in the security and defence policy of Turkey. A change in outlook: Security in space versus security from space [PDF]

open access: yes, 2009
Space and security domains are strongly related with each other. Nowadays, space is an indispensable part of security and defence policy, and it is increasingly becoming a critical infrastructure for strategic Command, Control, Communications, Computers,
Ercan, C., Kale, I., Ercan, C., Kale, I.
core   +3 more sources

Effects of Torrefaction Process on Chemical Properties of Small Diameter Acacia mangium Wood [PDF]

open access: yesBIO Web of Conferences, 2023
Torrefaction refers to a thermal process that involves the processing of biomass in a torrefied to produce a "charred" product that can be utilised as a fuel or as a soil amendment.
Mat Rasat Mohd Sukhairi   +10 more
doaj   +1 more source

Frequência fundamental de crianças da cidade de Niterói Fundamental frequency for children in the municipality of Niterói

open access: yesRevista CEFAC, 2009
OBJETIVO: medir a frequência fundamental de 122 crianças de seis a oito anos de idade, meninos e meninas, sem alterações vocais, avaliadas por meio da escala Rasat.
Tereza Cristina Andrade Schott   +2 more
doaj   +1 more source

On-orbit modulation transfer function estimation For RASAT

open access: yes2013 6th International Conference on Recent Advances in Space Technologies (RAST), 2013
RASAT, launched to its sun-synchronous orbit on 19.08.2011, is a 93 kg small satellite carrying an optical imager with Ground Sampling Distances (GSD) 7.5 m for panchromatic and 15 m for multispectral images. Optical imager is composed of a cassegrain telescope and a linear CCD sensor. The Modulation Transfer Functions (MTF) is a quality metric used in
Turkmenoglu, Mustafa, Yaglioglu, Burak
openaire   +2 more sources

Quality Prediction of DWT‐Based Compression for Remote Sensing Image Using Multiscale and Multilevel Differences Assessment Metric

open access: yesMathematical Problems in Engineering, Volume 2014, Issue 1, 2014., 2014
Accurate assessment and prediction of visual quality are of fundamental importance to lossy compression of remote sensing image, since it is not only a basic indicator of coding performance, but also an important guide to optimize the coding procedure.
Hongxu Jiang   +4 more
wiley   +1 more source

İstanbul Rasathanesi'nde Yapılmış Olan Gözlemler

open access: yesBelleten, 1993
XVI. yüzyılın üçüncü çeyreğinde, Takiyüddin bin Maruf (1521 - 1585) tarafından İstanbul'da kurulan rasathanede kullanılmış olan rasat aletlerinin türleri ve vasıfları hakkında yapılmış olan araştırmalar, İstanbul Rasathanesi'nin ...
Remzi Demir
doaj   +1 more source

Vibration and Modal Analysis of Low Earth Orbit Satellite

open access: yesShock and Vibration, Volume 2014, Issue 1, 2014., 2014
This paper presents design, modeling, and analysis of satellite model used for remote sensing. A detailed study is carried out for the design and modeling of the satellite structure focusing on the factors such as the selection of material, optimization of shape and geometry, and accommodation of different subsystems and payload.
Asif Israr, Longjun Dong
wiley   +1 more source

Facile Synthesis of Porous‐Structured Nickel Oxide Thin Film by Pulsed Laser Deposition

open access: yesJournal of Nanomaterials, Volume 2012, Issue 1, 2012., 2012
Porous‐structured nickel oxide (PsNiO) was obtained through the oxidization of a nickel thin film. The nickel thin film was deposited using the pulsed laser deposition (PLD) method on a nickel foil as a substrate. The results show uniform PsNiO after the oxidization of the nickel thin film at 750∘C for 1 h.
Siamak Pilban Jahromi   +6 more
wiley   +1 more source

Türk Tarih Kurumu Adına Kırşehir'de Cacabey Medresesinde Yapılan Araştırmanın ilk Kısa Raporu

open access: yesBelleten, 1947
Araştırmanın gayesi, 1272 de (Hicri 671) Gıyasüddin Keyhusrev ibni Kılıç Arslan zamanında Kırşehir valisi Nureddin Cibril ibni Caca tarafından Kırşehir'de yaptırılmış olan Cacabey Medresesinin bir hey'et medresesi olduğu ...
Aydın Sayılı
doaj   +1 more source

Earth observation satellite systems of Turkey and their availability for forestry applications

open access: yesTurkish Journal of Forestry, 2016
The start of space age was a milestone in the development of remote sensing. Sputnik 1, Russian satellite and Explorer 1, USA satellite which were considered as the ancestors of earth observation satellites used today were launched into space in 1957 and
Hüseyin ÇOBAN
doaj   +1 more source

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