The transient photovoltaic (PV) characteristic of HgCdTe PV array is studied using an ultrafast laser.The photoresponse shows an apparent negative valley first, then it evolves into a positive peak.By employing a combined theoretical model of pn junction and Schottky potential, this photo-response polarity changing curves can be interpreted goggles
Theacquisition of time knowledge involves learning how to read clocks, estimatetime, read dates and learn about temporal sequences.Evidence suggests thatmany of these competencies are acquired by 10 years of age although not allchildren may follow this developmental path.The main purpose of this study wasto collect normative data for a screening to
Background: Young people are most vulnerable to sexually transmitted diseases (STDs) and human immunodeficiency virus/acquired immunodeficiency syndrome (HIV/AIDS) in Bangladesh.Lack of knowledge about reproductive health issues is also common in this group.Aims: This study aimed to assess the knowledge and perceptions of STDs, HIV/AIDS, and reprod
The adjoint method is used in this paper for the aerodynamic optimization of the nose shape of a train.This method has been extensively applied in aircraft or ground vehicle aerodynamic optimization, but is still in progress in train aerodynamics.Here we consider Ice Handling this innovative optimization method and present its application to reduce
Objective: To evaluate the clinical and radiological outcome of MTA in nonvital teeth with open apices.Methods: Twenty-five non-vital teeth with open apices were treated with MTA apexification procedure.Standard endodontic procedures were followed and an apical plug of at least 5 mm was created by using MTA after a calcium hydroxide intra-canal dre