purpose: to report the prevalence of fungal keratitis as a cause of corneal ulcer in patients refered to boo-ali sina hospital in sari and identify the predisposing factors.  methods: this prospective study was conducted on patients who presented with corneal ulcers to the ophthalmology ward at boo-ali sina hospital in sari, 2004-2005. using standard techniques, a corneal scraping was performed...

The flowing electrolyte in a zinc-air fuel cell (ZAFC) can reduce the problem of incomplete reaction caused by concentration gradient electrolyte. In this study, we propose self-developed ZAFC with system and optimize control parameters. anode used Zn particles through which penetrates combined negative pressure pump to allow potassium hydroxide (KOH) have an effective chemical during discharge...

Kappaphycus alvarezii is a carrageenan-producing red seaweed that widely cultivated in Nusa Lembongan waters, Bali, Indonesia. Carrageenan generally extracted using an alkaline base,. iIn this study three different types of alkali were used to extract carrageenan originating from Waters. This aims determine the quality extraction. The alkalis KOH, NaOH, Ca(OH)2, and distilled water as control. ...

for the first time this study reported the success of using nanocrystalline hexagonal close-packed (hcp) nickel (ni) modified composite graphite (cg) electrode (hcp-nano ni/cg) for the electrocatalytic oxidation of glycerol in alkaline medium (0.1 m koh). the hcp-nano ni/cg electrode had an improve response and specificity on the electrocatalytic oxidation of glycerol over the bare cg. the elec...

In biomass thermal conversion processes, the release of potassium in high temperature environments crucially influences operating efficiency and safety. The dominant species can be hydroxide (KOH) and/or chloride (KCl). We report a species-specified quantitative measurement combustion using laser-induced photofragmentation fluorescence (LIPF). Ultraviolet (UV) light sources with different wavel...

The percentage of positivity of combined PAS and culture was 79 (56%) and combined KOH and culture was 64 (45.4%), (Table 2). Comparing PAS test alone as an alternative method of diagnosis to combined KOH and culture (for both culture positive and culture negative cases) showed an overall sensitivity of 60.9% and specificity of 80.3%. When applied specifically to dermatophyte culture positive c...

An experiment was conducted to assess whether KOH applied as a foliar spray could mitigate the adverse effects of salt stress on plant growth and yield of sunflower plants. For this purpose, KOH @ 0, 0.5, 1.0, 1.5 and 2.0% was applied as a foliar spray to salt stressed and non-stressed sunflower plants. Foliar spray of KOH increased the growth and yield under non-stress and salt stressed condit...

Abstract Technologies that allow for removal and subsequent recovery reuse of phosphorus from polluted streams are imperative. One such technology is hybrid ion exchange nanotechnology (HIX-Nano), which may to produce a valuable nutrient solution following desorption the saturated media. This study evaluated potential four regeneration chemistries desorb commercially available HIX-Nano resin hy...