This paper proposes an algorithm for estimating the location of wireless access points (APs) in indoor environments to realize smartphone positioning based on Wi-Fi without pre-constructing a database. The proposed method is designed overcome main problem existing methods requiring advance construction database with coordinates or precise AP measurements. constructs local coordinate system firs...

a serious hazard to patients during orthotopic liver transplantation is hyperkalemia. although the most frequent and hazardous hyperkalemia occurs immediately after reperfusion of the newly transplanted liver, morbid hyperkalemia could happen in the other phases during orthotopic liver transplantation. however, pre-anhepatic hyperkalemia during orthotopic liver transplantation is rare. this rep...