نتایج جستجو برای: pressure visual cell
تعداد نتایج: 2385914 فیلتر نتایج به سال:
Achievement of target intraocular pressure is the goal of every efficient antiglaucoma therapy. Target intraocular pressure is the level of intraocular pressure which is associated with minimal likelihood of visual field or optic nerve lesion, or an existing lesion progression due to elevated intraocular pressure. Results of large clinical studies which have offered some new concepts on target ...
output characteristics of fuel cells are affected by a large number of parameters such as geometry, dimensions, construction materials and conditions of supplying fluids. in this paper a mathematical model followed by a two-dimensional numerical approach has been presented to study the fuel cell parametrically. effect of oxygen concentration at gas diffusion layer entrance, temperature and pres...
Abstract Introduction: Primary dysmenorrhea is common in women during reproductive age. Objective: This study aimed to determine the effect of acupressure on sixth spleen point (SP6) on relief of primary dysmenorrhea. Methods: This study is a clinical trial. Students with primary dysmenorrheal living in dormitory were studied during three menstrual cycles. Pain intensity was measured...
Introduction: Air pollution in industrial work environments has adverse effects on worker health, for example, chronic obstructive pulmonary disease and asthma. These diseases impose direct and indirect costs on society. In hierarchy controls, local exhaust ventilation is considered an "engineering control" to remove or control contaminants released in indoor work environments. It is one of the...
Background and purpose : Many aphahic patients have unfavorable vision either with glasses or contact lens. In this study Visual outcome of Seconary (I.O.L) was implantation in aphakic patients referred to Imam Hossein Haspital 1994 evaluated. Materials and Methods : In a clinical trial with sequential sampling , 30 aphakic patients (26 males , 4 females mean of age 24.4 ± 10.8 years) who...
we evaluated the ability of spectral-domain optic coherence tomography (sd-oct) to differentiate large physiological optic disc cupping (lpc) from glaucomatous cupping in eyes with intraocular pressure (iop) within the normal range.â we prospectively enrolled patients with glaucoma or presumed lpc. participants â had optic discs with confirmed or suspected glaucomatous damage (defined as a ver...
The classical clinical triad of retinitis pigmentosa is arteriolar attenuation , retinal bone-spicule pigmentation and waxy disc pallor. A 33 year old female patient is introduced here. She had unilateral posterior subcapsular cataract, heterochromic iris, and uveitis.The patient also suffered night blindness , had a family history of low vision ,and reduced visual acuity in her right e...
AIM To compare visual acuity and intraocular pressure outcomes 3 years after treatment of acute angle closure glaucoma (AACG) by operative peripheral iridectomy (PI) or Nd:YAG laser iridotomy (YAG PI). METHODS A prospective study of consecutive patients presenting to one ophthalmology department with uniocular AACG during a 2 year period. Following informed consent patients were randomised to...
Swelling/extraction tests are single-contact phase-behavior experiments to measure the solubility of CO2 dissolved in crude oil and the amount of hydrocarbon that CO2 can extract or vaporize from crude oil. The tests are commonly conducted in a visual PVT cell with a large sample size (40-100cc). In this paper, an easy operated apparatus capable of determining phase behavior with a significantl...
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