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Photokeratitis or ultraviolet keratitis is a painful eye condition caused by exposure of insufficiently protected eyes to the ultraviolet (UV) rays from either natural (e.g. intense direct or reflected sunlight) or artificial (e.g. the electric arc during welding) sources.
In the mining industry, non-contact electrical burns due to arc flash events are the largest single category of electrical injuries. To address this problem, NIOSH OMSHR researchers conducted a study of such injuries from an 11-year period, with findings that included the determination of organizational and human behavior components of arc ...
Klieg lights. A Klieg light is an intense carbon arc lamp especially used in filmmaking.It is named after inventor John Kliegl and his brother Anton Kliegl.Klieg lights usually have a Fresnel lens with a spherical reflector or an ellipsoidal reflector with a lens train containing two plano-convex lenses or a single step lens.
How to choose a depuffing eye cream: Keep an eye out for key ingredients. “When choosing an eye cream it is crucial to read the ingredient list,” Dr. O’Connell says. “There are a few key ...
The IEEE 1584 arc flash boundary equations can also be used to calculate the arc flash boundaries with boundary energy other than 1.2 cal/cm 2 such as onset to 2nd degree burn energy. Those conducting flash hazard analyses must consider this boundary, and then must determine what PPE should be worn within the flash protection boundary.
These target all of the usual suspects: puffy eyes, under-eye bags, dark circles, signs of aging and dryness, all thanks to ingredients like sea moss, hydrolyzed vegetable protein and hyaluronic acid.
The arc flash in an electrical fault produces the same type of light radiation from which electric welders protect themselves using face shields with dark glass, heavy leather gloves, and full-coverage clothing. [18] The heat produced may cause severe burns, especially on unprotected flesh.
The U.S. Food and Drug Administration (FDA) announced a ban this week on red dye No. 3, or erythrosine, from foods and oral medications due to a potential cancer risk.. Food manufacturers have ...