Rancang Bangun Sistem Informasi Laboratorium Klinik Berbasis Web pada Laboratorium Klinik Utama SAFIRAH Sidoarjo

This Safirah clinical laboratories in the ministry received a lot of medical tests, but in its information systems are not going well, the medical personnel often face a variety of administrative problems. The problem that often occurs is a problem receiving transactions patient, patient examination transaction, the transaction ordering reagents, reagent revenue transactions in its report that while earnings reports and summary reports doctors. Besides, have not been well integrated inter-section in the clinical laboratory. Based on the above problems, clinical laboratories safirah require an application or system capable of handling administrative problems correctly and quickly. This application is also capable of integrating between the administration and the manager very well. From the results of tests and evaluations that have been done, the system can be built to handle the administration of data processing that has been integrated between the administration and the manager very well and this system can provide regular reports so that managers can make the evaluation of each end of the month or the end of the year

Electron Density and Electron Neutral Collision Frequency in the Ionosphere Using Plasma Impedance Probe Measurement

Swept Impedance Probe measurements in a sporadic E layer observed during the Sudden Atomic Layer (SAL) sounding rocket mission are analyzed to obtain absolute electron densities and electron neutral collision frequencies accurately. Three sets of upleg and downleg impedance data are selected for the analysis. Initial estimates of the plasma parameters are obtained through a least mean square fit of the measured impedance data against the analytical impedance formula ZB(f ) of Balmain (1969). These initial parameters are used as a starting point to drive a finite difference computational model of an antenna immersed in a plasma called PF-FDTD. The parameters are then tuned until a close fit is obtained between the measured impedance data and the numerical impedance data calculated by the PF-FDTD simulation. The electron densities obtained from the simulation were close to those obtained from the IRI 2001 model. The electron neutral collision frequencies obtained from the more accurate PF-FDTD simulation were up to 20% lower than the values predicted by Balmain’s formula. The obtained collision frequencies are also lower than the quiet time values predicted by Schunk and Nagy (2000) when used in conjunction with neutral densities and electron temperature from the Mass Spectrometer Incoherent Scatter Radar Extended-90 model

Electron density and electron neutral collision frequency in the ionosphere using plasma impedance probe measurements

Swept Impedance Probe measurements in a sporadic E layer observed during the Sudden Atomic Layer (SAL) sounding rocket mission are analyzed to obtain absolute electron densities and electron neutral collision frequencies accurately. Three sets of upleg and downleg impedance data are selected for the analysis. Initial estimates of the plasma parameters are obtained through a least mean square fit of the measured impedance data against the analytical impedance formula ZB(f ) of Balmain (1969). These initial parameters are used as a starting point to drive a finite difference computational model of an antenna immersed in a plasma called PF-FDTD. The parameters are then tuned until a close fit is obtained between the measured impedance data and the numerical impedance data calculated by the PF-FDTD simulation. The electron densities obtained from the simulation were close to those obtained from the IRI 2001 model. The electron neutral collision frequencies obtained from the more accurate PF-FDTD simulation were up to 20% lower than the values predicted by Balmain’s formula. The obtained collision frequencies are also lower than the quiet time values predicted by Schunk and Nagy (2000) when used in conjunction with neutral densities and electron temperature from the Mass Spectrometer Incoherent Scatter Radar Extended-90 model