Search Results - "Ahmad Keshtkar"

Classification of mastoid air cells by CT scan images using deep learning method by Khosravi, Mohammad, Jabbari Moghaddam, Yalda, Esmaeili, Mahdad, Keshtkar, Ahmad, Jalili, Javad, Tayefi Nasrabadi, Hamid

“…Purpose Mastoid abnormalities show different types of ear illnesses, however inadequacy of experts and low accuracy of diagnostic demand a new approach to…”
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Bladder Cancer Detection Using Electrical Impedance Technique (Tabriz Mark 1) by Keshtkar, Ahmad, Salehnia, Zeinab, Keshtkar, Asghar, Shokouhi, Behrooz

“…Bladder cancer is the fourth most common malignant neoplasm in men and the eighth in women. Bladder pathology is usually investigated visually by cystoscopy…”
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Effects of Extremely Low Frequency Electromagnetic Fields and Simultaneous Treatment with Allium Cepa on Biochemical Parameters and Ultrastructure of Ovarian Tissues of Rats by Elham Mansouri, Ahmad Keshtkar, Arash Khaki, Ehsan Keshtkar, Afshin Khaki

“…Introduction: This study investigated the effects of extremely low frequency electromagnetic fields (ELF-EMF) (50 Hz, 3 mT) on biochemical parameters of rats’…”
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Dosimetric properties of a flattening filter-free 6-MV photon beam: a Monte Carlo study by Mesbahi, Asghar, Mehnati, Parinaz, Keshtkar, Ahmad, Farajollahi, Alireza

“…The dosimetric features of an unflattened 6-MV photon beam of an Elekta SL-25 linac was calculated by the Monte Carlo (MC) method. The head of the Elekta SL-25…”
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Discriminant analysis between myocardial infarction patients and healthy subjects using wavelet transformed signal averaged electrocardiogram and probabilistic neural network by Keshtkar, Ahmad, Seyedarabi, Hadi, Sheikhzadeh, Peyman, Rasta, Seyed Hossein

“…There are a variety of electrocardiogram based methods to detect myocardial infarction (MI) patients. This study used the signal averaged electrocardiogram…”
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Effect of wedge filter and field size on photoneutron dose equivalent for an 18MV photon beam of a medical linear accelerator by Mesbahi, Asghar, Keshtkar, Ahmad, Mohammadi, Ehsan, Mohammadzadeh, Mohammad

“…Photoneutrons produced during radiation therapy with high energy photons is the main source of unwanted out-of-field received doses of patients. To analyze the…”
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Design and construction of an optical computed tomography scanner for polymer gel dosimetry application by Zakariaee, Seyed Salman, Mesbahi, Asghar, Keshtkar, Ahmad, Azimirad, Vahid

“…Polymer gel dosimeter is the only accurate three dimensional (3D) dosimeter that can measure the absorbed dose distribution in a perfect 3D setting. Gel…”
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Circular Microstrip Patch Array Antenna for C-Band Altimeter System by Keshtkar, Asghar, Keshtkar, Ahmad, Dastkhosh, A. R.

“…The purpose of this paper is to discuss the practical and experimental results obtained from the design, construction, and test of an array of circular…”
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Nanomaterials and phase sensitive based signal enhancment in surface plasmon resonance by Mohammadzadeh-Asl, Saeideh, Keshtkar, Ahmad, Ezzati Nazhad Dolatabadi, Jafar, de la Guardia, Miguel

“…Measurement of small molecules in extremely dilute concentrations of analyte play an important role in different issues ranging from food industry to…”
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Synthesis of cytocompatible Fe3O4@ZSM-5 nanocomposite as magnetic resonance imaging contrast agent by Atashi, Zahra, Divband, Baharak, Keshtkar, Ahmad, Khatamian, Maasoumeh, Farahmand-Zahed, Farzane, Nazarlo, Ali Kiani, Gharehaghaji, Nahideh

“…[Display omitted] •ZSM-5 nano zeolite as a support of the Fe3O4 NPs was synthesized to consider its capability as an MRI contrast agent.•MRI results showed…”
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The comparison of measured impedance of the bladder tissue with the computational modeling results by keshtkar, ahmad, Madaen, Seyed Kazem

“…Introduction: The electrical impedance spectroscopy technique can be used to measure the electrical impedance of the human bladder tissue, for differentiating…”
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Kinetic and thermodynamic insights into interaction of erlotinib with epidermal growth factor receptor: Surface plasmon resonance and molecular docking approaches by Mohammadzadeh-Asl, Saeideh, Aghanejad, Ayuob, Yekta, Reza, de la Guardia, Miguel, Ezzati Nazhad Dolatabadi, Jafar, Keshtkar, Ahmad

“…Epidermal growth factor receptor (EGFR) plays an important role in cell proliferation at non-small cell lung cancer (NSCLC). Therefore, targeted therapy of…”
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Surface plasmon resonance signal enhancement based on erlotinib loaded magnetic nanoparticles for evaluation of its interaction with human lung cancer cells by Mohammadzadeh-Asl, Saeideh, Aghanejad, Ayuob, de la Guardia, Miguel, Ezzati Nazhad Dolatabadi, Jafar, Keshtkar, Ahmad

“…•The interaction of erlotinib and MNP-erlotinib with A549 cells was studied.•Signal enhancement was observed for MNP-erlotinib and A549 cells interaction.•The…”
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Design and construction of small sized pencil probe to measure bio-impedance by Keshtkar, Ahmad

“…Abstract Currently, bio-impedance measurements are performed with relatively large probes which are not suitable for all in vivo studies. These are typically…”
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Virtual bladder biopsy using bio-impedance spectroscopy at 62.500 Hz–1.024 MHz by Keshtkar, Ahmad

“…The electrical impedance of the human urinary bladder was measured using a frequency range (62.500 Hz–1.024 MHz in 58 frequencies) electrical impedance…”
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A Robust Machine learning based method to classify normal and abnormal CT scan images of mastoid air cells by Khosravi, Mohammad, Esmaeili, Mahdad, Moghaddam, Yalda Jabbari, Keshtkar, Ahmad, Jalili, Javad, Nasrabadi, Hamid Tayefi

“…The abnormality of mastoid air cells represents various types of ear maladies. The current traditional manual analyzing of huge amount of collected images from…”
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Investigating Causes of Medical Errors in Intensive Care Units in Iran: A Cross-sectional Study by Moradi Moghaddam, Omid, Keshtkar, Ahmad, Sedighi, Mohsen, Amanollahi, Alireza, Aghakhani, Kamran, Niakan Lahiji, Mohammad

“…BackgroundMedical errors cause disability and mortality in intensive care units (ICUs). We aimed to determine the occurrence and causes of medical errors in…”
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Effect of wedge filter and field size on photoneutron dose equivalent for an 18 MV photon beam of a medical linear accelerator by Mesbahi, Asghar, Keshtkar, Ahmad, Mohammadi, Ehsan, Mohammadzadeh, Mohammad

“…Photoneutrons produced during radiation therapy with high energy photons is the main source of unwanted out-of-field received doses of patients. To analyze the…”
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Virtual bladder biopsy using bio-impedance spectroscopy at 62.500Hz–1.024MHz by Keshtkar, Ahmad

“…The electrical impedance of the human urinary bladder was measured using a frequency range (62.500Hz-1.024MHz in 58 frequencies) electrical impedance…”
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Effect of Rail Tapering on the Inductance Gradient Versus Armature Position by 3D-FEM by Keshtkar, A, Mozaffari, S, Keshtkar, A

“…The increasing of projectile final velocity and the uniformity of current density in the special regions of the armature and rail such as the root of the…”
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