Thirteen Years' Measurements of Solar Radiation

Coordinated weather balloon solar radiation measurements during a solar eclipse

Solar eclipses provide a rapidly changing solar radiation environment. These changes can be studied using simple photodiode sensors, if the radiation reaching the sensors is unaffected by cloud. Transporting the sensors aloft using standard meteorological instrument packages modified to carry extra sensors, provides one promising but hitherto unexploited possibility for making solar eclipse rad...

Thirteen Years of Pair Production

This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or repre...

The Larger Results of 20 Years of Solar Radiation Observations.

Ground Based Measurements of Solar UV Index in Tabriz

Introduction: Ultraviolet index (UVI) is a dimensionless scale, which describes the maximum intensity and biologic effects of UV during a specific time, on surface of the earth. The UVI is  an  international  standard measurement of  the  strength  of sunburn  producing ultraviolet radiation at a particular place and time. This index is an easy and understandable concept for pr...

Thirteen years of experience with the endoscopic midface lift.

BACKGROUND Numerous techniques have been used to rejuvenate the aging midface. The Endotine midface technique involves an endoscopic temporal approach, including midface dissection and malar suspension with fixation. The Endotine device (Microaire, Charlottesville, Virginia) eliminates the intraoral incision and use of sutures, enabling multipoint fixation and fast, simple adjustability for opt...