Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Ehsan Jafarzadeh"'
Autor:
Ehsan Jafarzadeh, Hesameddin Modir, Esmail Moshiri, Farzad Zamani Barsari, Amir Almasi-Hashiani
Publikováno v:
Bali Journal of Anesthesiology, Vol 6, Iss 3, Pp 171-176 (2022)
Background: This study was undertaken to compare the effects of several drugs on attenuation of stimulatory responses and cough suppression at the end of endotracheal extubation under general anesthesia. Patients and Methods: This trial was conducted
Externí odkaz:
https://doaj.org/article/5cfc762119454b25850ac8b72b94adac
Publikováno v:
Medical Engineering & Physics. 98:44-49
Foot ulcers and lower-limb amputations are among the major problems in diabetic patients. Orthopedic insoles can reduce the risk of diabetic foot ulcers in patients through pressure redistribution on the bottom of the foot. The purpose of this study
Publikováno v:
Annual Conference of the PHM Society. 14
Bearing condition monitoring is a widely studied field, but applications to the automotive industry have received little attention as the bearing failure rates are typically low in traditional internal combustion engine vehicles with 200 – 300k mil
Publikováno v:
Ultrasonics. 132:107006
Publikováno v:
Ultrasound in Medicine & Biology. 47:809-819
For tissue characterization, it is desirable to determine B/A using high-frequency transducers. Moreover, an accurate estimate of B/A at elevated frequencies (or at least the assumption of frequency independence of B/A) is required to evaluate the sa
Autor:
Ehsan Jafarzadeh, Anthony N. Sinclair
Publikováno v:
2021 IEEE International Ultrasonics Symposium (IUS).
The existing safety standards for diagnostic ultrasound devices were developed for low frequency systems (1 to 10 MHz) under the assumption that nonlinear effects are negligible. However, the standards are now being used for high frequency systems (u
Autor:
Anthony N. Sinclair, Ehsan Jafarzadeh
Publikováno v:
Ultrasound in Medicine & Biology. 45:11-20
Safety standards for clinical diagnostic ultrasonic devices were developed for use in relatively low-frequency systems (1–10 MHz), under the assumption that non-linear effects would be negligible. This article reviews ways in which neglecting non-l
Publikováno v:
Ultrasound in medicinebiology. 47(7)
An amplitude-dependent downshift in the fundamental wave spectrum of a propagating ultrasonic pulse caused by non-linear wave propagation is described. The effects of non-linearity and the associated downshift on spatial resolution are also studied.
Autor:
Hesameddin Modir, Ehsan Jafarzadeh, Esmail Moshiri, Farzad Zamani Barsari, Amir Almasi-Hashiani
Publikováno v:
Bali Journal of Anesthesiology. 6:171
Publikováno v:
Advances in Manufacturing. 6:334-344
Chatter vibration is a major obstacle in achieveing increased machining performance. In this research, a finite element model of chip formation in a 2D milling process is used to predict the occurrence of chatter vibrations, and to investigate the ef