This paper modeled heating air of a room through examining free convection in a 3D chamber. The chamber had cold and hot sources with Tc and Th temperatures, respectively. Its other walls were adiabatic. This study aimed at predicting effect of temperature difference, displacement of hot and cold sources and their aspect ratio on flow field, temperature and heat transfer rate. To conduct the st...

The present study introduces a rare case with secondary glaucoma due to anterior chamber lipoma and uveitis in a Pekingese dog in Iran. A four-year-old castrated male Pekingese dog was referred to the private clinic with impaired vision of the left eye, pain, rubbing the left eye onto carpet, presence of a milkycoloured mass into the anterior chamber, and loss of appetite. The clinical examinat...

T he history of IOLs began in 1949 with Sir Harold Ridley’s insertion of an artificial lens into the posterior chamber. Although placing an IOL within the space from which the cataract had been removed seemed (and seems still) a natural, almost obvious choice, ophthalmologists abandoned posterior chamber lens implantation within a few years. I reawakened surgeons’ interest in posterior chamber ...

PURPOSE To investigate the refractive and biometric changes associated with adult-onset and adult-progression of myopia in an occupational group. METHODS The sample population consisted of 251 clinical microscopists aged 21 to 63 years. Subjects had their refraction and ocular dimensions measured on four occasions during a 2-year period, and a total of 166 subjects (332 eyes) completed the lo...

Table 1. Average colony size of the six quality control strains: Anaerobic chambers and anaerobic jars are used to provide ancomparison of four methods for cultivating anaerobic bacteria. aerobic conditions required to cultivate anaerobic bacteria. All operations and manipulations of cultures can be carried out inside Setup: incubation the anaerobic chamber, thus avoiding any exposure to oxygen...

With the development of the Makler counting chamber, the reproducibility and accuracy of computer-assisted semen analysis and of manual determination of sperm concentration and sperm motility were significantly enhanced beyond what is possible with other methods, such as the hemocytometer, the Horwell chamber, the Petroff-Hausser chamber, and Chartpak slides. The use of Micro-Cell, a disposable...

The processes of methane adsorption, storage and desorption by the nanocapsule are investigated with molecular-dynamic modeling method. The specific nanocapsule shape defines its functioning uniqueness: methane is adsorbed under 40 MPa and at normal temperature with further blocking of methane molecules the K@C60(1+) endohedral complex in the nanocapsule by external electric field, the storage ...