Introduction: The present study aimed to present a numerical analysis of the penetration depth,  specific absorption rate (SAR), and temperature rise in various eye tissues with varying distance between radiation source and exposed human eye tissues (i.e., cornea, posterior chamber, anterior chamber, lens, sclera, vitreous humor, and iris) at frequencies of 900 and1800 MHz. Materials and Method...

Electro-Hydraulic Forming (EHF) is a high rate sheet metal forming process based on the electrical discharge of voltage capacitors in water-filled chamber. During discharge, pulsed pressure wave propagates from electrodes and forms blank into die. The performed literature review shows that this technology suitable for parts broad range dimensions complex shapes. One barriers broader implementat...

background studies show that a large proportion of healthcare offered may be inappropriate or unnecessary. magnetic resonance imaging (mri) is a new and expensive diagnostic technology which has been increasingly used all over the world. moreover, this trend has been more rapidly increasing in iran. low back pain is a common disorder all over the world and mri technique is one of the several wa...

A hydraulic ram is a device for moving fluid from lower place to higher place. Hydram pumps have the same function as in general. The driving energy of pump comes pressure water entering through suction pipe into pump. By using large enough flow at low place, will with less capacity. capacity flowing depends on difference between and discharge pipe. design form model used distribute sourced art...

one of the great challenges in the processing of materials using equal channel angular pressing (ecap) is the high forming forces required to produce large shear deformation in the material. researchers show that the friction forces between the die and the sample constitute a great part of the total forming forces. recently, ultrasonic vibrations are successfully implemented into the ecap proce...