For routine pretreatment verification of innovative treatment techniques such as (intensity modulated) dynamic arc therapy and helical TomoTherapy, an on-line and reliable method would be highly desirable. The present solution proposed by TomoTherapy, Inc. (Madison, WI) relies on film dosimetry in combination with up to two simultaneous ion chamber point dose measurements. A new method is propo...

A small combustion chamber was developed and manufactured for empirical testing of several alternative fuels to meet IMO emission limits fuel oil used in ships. The consists four independent tanks a circulation system with two-stage heating function owing the high viscosity temperature ship fuel. gun-type burner is mounted on side chamber, which possesses cylindrical shape capacity less than 30...

optical rehabilitation of the patient with aphakia who cannot tolerate contact lenses present a therapeutic challenge. in the absence of capsular support, anterior chamber lenses have been widely used. on the other hand intraocular lens implantation of scleral sutured posterior chamber intraocular lens during penterating keratoplasty or insufficient iris support is recommended. the purpose of t...

This paper describes boundary element method (BEM), experimental and optimization studies conducted to understand the potential of expansion tube coupled micro-perforated cylindrical panel (MPCP) enhance acoustic attenuation for in-duct noise control issues. Due complex structure MPCP correct prediction attenuation, BEM is adopted on basis PLM Simcenter 3D software compute sound transmission lo...

Over the years, the ev8 code has been a very useful tool for the study of nuclear mean-field theory. Its main characteristic is that it solves the Hartree-Fock plus BCS equations for Skyrme type functionals via a discretization of the individual wave-functions on a three-dimensional cartesian mesh. This allows maximal flexibility in the determination of the nuclear shape by the variational proc...

A numerical analysis is carried out to determine the flowfield and starting characteristics of a straight cylindrical supersonic exhaust diffuser of a high-altitude simulation of a high expansion ratio rocket nozzle. The flow field inside the high-altitude facility is analyzed for a conical nozzle of expansion ratio of 25, diffuser inlet-to-nozzle throat area ratio of 28.9, and diffuser length-...

Computed tomography (CT) has been widely used in clinical diagnosis. It is important to estimate radiation dose and perform image quality assurance procedures for CT scans. In this study, nMAG gel dosimeters were used to simultaneously measure the 300-mm weighted CT dose index (CTDI) and slice sensitivity profile (SSP) for multiple detector CT (MDCT). Magnetic resonance imaging (MRI) was perfor...

PURPOSE To measure and describe the reflectance properties of a mammalian retinal nerve fiber layer (RNFL) and to determine the mechanisms responsible for the RNFL reflectance. METHODS An isolated rat retina suspended across a slit in a black membrane and mounted in a black perfusion chamber provided high quality images of the RNFL. Imaging microreflectometry was used to measure RNFL reflecta...

A manganese oxide-coated cylindrical graphite cathode with a zinc anode was developed to treat wastewater containing selenite in dual-chambered microbial fuel cell. COD and removal the anodic chamber by Bacillus cereus energy generation were evaluated batch mode. dioxide-coated tested for its surface morphology chemical composition using scanning electron microscopy dispersive analysis of X-ray...

This paper considers the issues of numerical modeling nonstationary spatial gas dynamics in pre-nozzle volume combustion chamber a power plant with cylindrical slot channel at mass supply surface. The simulation for objects is based on solution conjugate problem heat exchange by control method open integrated platform continuum mechanics problems (openFoam). calculation results gas-dynamic and ...