Results 41 to 50 of about 18,614 (247)

Satellite Operation Design for Assessing MTF Performance of Earth Observation Satellite Using Stellar Sources [PDF]

Journal of Astronomy and Space Sciences, 2007
Modulation Transfer Function (MTF) of satellite image is an important performance index in satellite image applications. Therefore MTF performance is assessed using satellite image for the ground target during LEOP phase after launch.
Hee Seob Kim, Dae-Won Chung, Hae-Jin Choi   +2 more
doaj   +1 more source

Imaging performance of a CaWO4/CMOS sensor

Fracture and Structural Integrity, 2019
The aim of this study was to investigate the modulation transfer function (MTF) and the effective gain transfer function (eGTF) of a non-destruc¬¬tive testing (NDT)/industrial inspection complementary metal oxide semi¬conductor (CMOS) sensor in ...
Niki Martini, Vaia Koukou, George Fountos, Ioannis Valais, Ioannis Kandarakis, Christos Michail, Athanasios Bakas, Eleftherios Lavdas, Konstantinos Ninos, Georgia Oikonomou, Lida Gogou, George Panayiotakis   +11 more
doaj   +1 more source

Retrospective analysis of restoration of the anatomy of the damaged thoracic and lumbar spinal motion segment using transpedicular repositioning device

Хирургия позвоночника, 2022
Objective. To carry out a retrospective analysis of the restoration of the anterior and posterior vertebral body heights and the elimination of deformation of the anterior spinal canal wall caused by thoracic and lumbar spine injury, based on the data of
Vladimir D. Usikov, Vladimir S. Kuftov, Dmitry N. Monashenko   +2 more
doaj   +1 more source

Overview of CMOS process and design options for image sensor dedicated to space applications [PDF]

, 2005
With the growth of huge volume markets (mobile phones, digital cameras…) CMOS technologies for image sensor improve significantly. New process flows appear in order to optimize some parameters such as quantum efficiency, dark current, and conversion gain.
Corbière, Franck, P. Magnan, P. Martin-Gonthier, F. Corbiere, Magnan, Pierre, Martin-Gonthier, Philippe   +5 more
core   +1 more source

Determining the optimal choice of attenuation filters and propagation distance for polychromatic phase-contrast micro-computed tomography of a multi-material electromotor using synchrotron radiation

Journal of Synchrotron Radiation
Optimizing phase-contrast micro-computed tomography (µCT) for a given object is not trivial if the radiation is polychromatic and the object multi-material.
Matthias Diez, Simon Zabler
doaj   +1 more source

Transcriptional Regulation of the Beta-Synuclein 5′-Promoter Metal Response Element by Metal Transcription Factor-1

, 2011
The progression of many human neurodegenerative disorders is associated with an accumulation of alpha-synuclein. Alpha-synuclein belongs to the homologous synuclein family, which includes beta-synuclein.
Patrick C McHugh, David R. Brown, Josephine A. Wright, McHugh, Patrick C, Wright, Josephine A., Josephine A Wright, Wright Josephine A., Brown David R., David R Brown, McHugh Patrick C., Brown, David R., Patrick C. McHugh   +11 more
core   +1 more source

Epicardial placement of human placental membrane allografts in coronary artery bypass graft surgery is associated with reduced postoperative atrial fibrillation: a pilot study for a future multi-center randomized controlled trial

Journal of Cardiothoracic Surgery
Background Post-operative atrial fibrillation (POAF) occurs in up to 40% of patients following coronary artery bypass grafting (CABG) and is associated with a higher risk of stroke and mortality.
Zain Khalpey, Ujjawal Kumar, Pamela Hitscherich, Usman Aslam, Evangelia Chnari, Marc Long   +5 more
doaj   +1 more source

Testing cameras used in active safety systems with regard to the impact of temperature [PDF]

International Journal of Electronics and Telecommunications
The paper presents and discusses the requirements related to testing cameras used in active safety systems. It also includes the results of temperature tests of the MTF (Modulation Transfer Function) parameter of a camera developed by Aptiv, conducted ...
Jacek Dąbrowski, Marcin Czerniawski, Janusz Zarębski   +2 more
doaj   +1 more source

Entanglement MTF

Abstract This work presents an interpretation of the phenomenon of quantum entanglement within the framework of the Topological Model of Physics (MTF). It is proposed that correlations between particles can be described in terms of a shared global phase or structure, defined at the common origin of the particles in the system.  ...
Garfunkel, Marcelo, Conno, Juan C.
  +8 more sources

Errors due to quantization in MTF determination using sinusoidal targets

, 2005
A theoretical treatment of the effect of quantization upon the determination of modulation transfer functions (MTF) of digital acquisition devices is initially developed for a noiseless system, when using sinusoidal targets.
Richardson, M.A., Jacobson, R.E., Jenkin, R.B.   +2 more
core   +1 more source