نتایج جستجو برای: d electrical imaging tomography surveys to map areas with moderately complex geology loke

تعداد نتایج: 13620879  

Protection of water resources from contamination and detection of the contaminants and their treatments are among the essential issues in the management of water resources. In this work, the time-lapse electrical resistivity tomography (ERT) surveys were conducted along 7 longitudinal lines in the downstream of the Latian dam in Jajrood (Iran), in order to detect the contamination resulting fro...

2003
MORGAN BROWN

To correctly image primary or multiple reflections in a heterogeneous earth, migration reigns supreme, although its computational cost may be nontrivial over complex geology, in 3-D, or when a “true amplitude” image is required. My earlier (Brown, 2002) technique to jointly image primaries and pegleg multiples used normal moveout (NMO), because of NMO’s speed and its amplitude predictability, i...

Journal: :iranian journal of radiology 0
hyeon-sik kim department of nuclear medicine, chonnam national university hwasun hospital, hwasun, korea byeong-il lee korea photonics technology institute, gwangju, korea ju han kim department of cardiology, chonnam national university hospital, gwangju, korea hee-seung bom department of nuclear medicine, chonnam national university hwasun hospital, hwasun, korea dong-yeon kim department of nuclear medicine, chonnam national university hwasun hospital, hwasun, korea; department of nuclear medicine, chonnam national university hwasun hospital, hwasun, korea. tel: +82-61-3798476, fax: +82-61-3798455, e-mail:; dong-yeon kim, department of nuclear medicine, chonnam national university hwasun hospital, hwasun, korea. tel: +82-613797262, fax: +82-613797281 jung-joon min department of nuclear medicine, chonnam national university hwasun hospital, hwasun, korea; department of nuclear medicine, chonnam national university hwasun hospital, hwasun, korea. tel: +82-61-3798476, fax: +82-61-3798455, e-mail:; dong-yeon kim, department of nuclear medicine, chonnam national university hwasun hospital, hwasun, korea. tel: +82-613797262, fax: +82-613797281

conclusion osem3d may provide better image quality and higher contrast than other methods for small animal imaging with the new myocardial imaging agent, [18f] fptp. results the location and size of myocardial infarction on pet images correlated closely with that observed with ttc staining. among the four reconstruction methods, osem3d provided the best assessment of infarct size (r2 = 0.994, p...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1382

‏‎despite the different criticisms on contrastive analysis it has been proved that the results of it(when processed) can be useful in a tefl environment, specially at the level of phonology.this study is an attempt to compare and contrast the sound systems of kurdish and english for pedagogical aims.the consonants,vowels,stress and intonation of the two languages are described by the same model...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

the importance of writing as a complex skill in applied linguistics has drawn the attention of many researchers to evaluate textbooks in order to help learners gain self-sufficiency and autonomy in the field of language use and communication. investigations have shown that developments in textbooks evaluation can promote the quality of pedagogies and consequently the learning. this study attemp...

Journal: Geopersia 2020

This work describes a knowledge-guided clustering approach for mineral potential mapping (MPM), by which the optimum number of clusters is derived form a knowledge-driven methodology through a concentration-area (C-A) multifractal analysis. To implement the proposed approach, a case study at the North Narbaghi region in the Saveh, Markazi province of Iran, was investigated to discover porphyry ...

Primary cardiac osteosarcoma is a very rare malignancy with a high incidence of local recurrence and systemic metastasis, contributing to the poor prognosis. Radiological modalities are commonly used for the evaluation of cardiac masses. 2-[18F]fluoro-2-deoxy-D-glucose ([18F]FDG) positron emission tomography/computed tomography is a valuable whole-body imaging modality in ...

Journal: :Physiological measurement 2010
A Borsic R Halter Y Wan A Hartov K D Paulsen

Transrectal electrical impedance tomography (TREIT) has been proposed as an adjunct modality for enhancing standard clinical ultrasound (US) imaging of the prostate. The proposed TREIT probe has an array of electrodes adhered to the surface of a cylindrical US probe that is introduced inside of the imaging volume. Reconstructing TREIT images in the open-domain geometry established with this tec...

Journal: :Physics in medicine and biology 2015
Pol Grasland-Mongrain François Destrempes Jean-Martial Mari Rémi Souchon Stefan Catheline Jean-Yves Chapelon Cyril Lafon Guy Cloutier

Ultrasound speckle is a granular texture pattern appearing in ultrasound imaging. It can be used to distinguish tissues and identify pathologies. Lorentz force electrical impedance tomography is an ultrasound-based medical imaging technique of the tissue electrical conductivity. It is based on the application of an ultrasound wave in a medium placed in a magnetic field and on the measurement of...

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