Output characteristics of tracking type concentrator photovoltaic (CPV) system, multi-crystalline silicon (mc-Si) PV system, CIGS PV system, and amorphous silicon (a-Si) PV system were analyzed in the data period of a year from August 2013 to July 2014.In this study, we analyzed the influence of environmental AGE-DEFYING DAY CREME factors using ave
Outcomes of Isolated Antenatal Hydronephrosis at First Year of Life
Objectives: To compare the grade of hydronephrosis between the antenatal and first postnatal ultrasound (US) and their clinical outcomes.Methods: This retrospective study included all cases of isolated hydronephrosis detected by antenatal US from August 2005 to February 2011.Hydronephrosis was classified based on the standard criteria into mild, mo
Performance Bound for Joint Multiple Parameter Target Estimation in Sparse Stepped-Frequency Radar: A Comparison Analysis
A performance bound—Cramér-Rao lower bound (CRLB) for target estimation and detection in sparse stepped frequency radars is presented.The vector formulation of this CRLB is used to obtain a lower bound on the estimation error.The estimation performance can be transformed into different types of CRLB structures.Therefore, the expressions