<p><span>This paper aimed to study how reduce the amounts of heat transfer from or internal space building by covering its external walls with many locally available materials, thus reducing rate consumption electrical energy used in adaptation, which leads costs. The researcher built a model room dimensions (1 x 1 2) m on third floor Baghdad (L = 33.2 N), 2 m) east for installation...

This research is focusing on the impact of changing position black painted side room (dark surface, or wall, ceiling floor) interior space illumination to determine best for dark surface inside room. The rectangular have six sides including and floor, every a it could be covered with low high LRV material, but this painting covering illuminance space. So, aim least negative if get material work...

frontal sinus fractures are of surgical importance because of the microbial flora covering the frontal air sinus and it's proximity with the duramater and brain. there is an increased risk of meningitis when fracture of the posterior wall of the frontal sinus is associated with a dural tear. in this condition, communication occurs between the contaminated space of the air sinus and the int...

Abstract One of the basic assumptions in hub covering problems is considering the covering radius as an exogenous parameter which cannot be controlled by the decision maker. Practically and in many real world cases with a negligible increase in costs, to increase the covering radii, it is possible to save the costs of establishing additional hub nodes. Change in problem parameters during the pl...