Design And Experimental Studies Of Multilayer Coating For Applications In Gallium Nitride Light Emitting Devices

Dalam projek ini, cermin dan mikrorogga untuk peningkatan cahaya ultra-unggu (UV) telah dibuat dan dikaji. In this work mirrors and microcavties for GaN-UV light enhancement were fabricated and studied

Design And Experimental Studies Of Multilayer Coatings For Applications In Gallium Nitride Light Emitting Devices [TK7871.89.L53 N247 2006 f rb].

Dalam projek ini, cermin dan mikrorogga untuk peningkatan cahaya ultra-unggu (UV) telah dibuat dan dikaji. In this work mirrors and microcavties for GaN-UV light enhancement were fabricated and studied

Carbetocin versus Oxytocin and Misoprostol in prevention of atonic post-partum hemorrhage in high risk patients planed for cesarean delivery

Background: Post-partum hemorrhage prevention (PPH) is considered a major issue due to its effect on maternal morbidity and mortality. The objective of this study was to compare efficacy of Carbetocin in prevention of atonic post-partum hemorrhage in high risk patients undergoing elective caesarean section in comparison to Oxytocin and Misoprostol.Methods: 150 pregnant women prepared for elective caesarean section were classified into 3 groups; Group I (50 patients received Carbetocin 100 mg I.V infusion), Group II (50 patients received 20 IU of Oxytocin infusion on 1000 ml of normal saline solution) and Group III (50 cases received Misoprostol 400 µg per rectum immediately before induction of anaesthesia). Assessment of PPH and its degree was determined according to amount of blood loss during and for first 24 hours of caesarean delivery, also further need for haemostatic measures were also assessed.Results: There was a statistically significant difference in PPH among the three groups 6, 14 and 12% for group I, II and III respectively (P <0.001), major PPH was 0, 4 and 6% for the same groups respectively (P <0.001). The need for additional uterotonic agents was significantly lesser in Group I compared to Group II and III (2% versus 8 and 12% respectively P = 0.02) also the need for additional surgical measures was significantly lesser among the three groups (P= 0.00). The drop in Hb level and haematocrit value was significantly lesser in group I compared to group II& III (P <0.05). The need for blood transfusion was significantly lesser in Group I compared to group II and III (0% versus 12% p <0.0001)Conclusions: Carbetocin was superior to Oxytocin and Misoprostol in prevention of atonic PPH in high risk patients underwent elective caesarean delivery. Carbetocin should be administered for all cases undergoing elective CS and carry a risk factor for postpartum hemorrhage.

Artificial Neural Network for Predicting Car Performance Using JNN

In this paper an Artificial Neural Network (ANN) model was used to help cars dealers recognize the many characteristics of cars, including manufacturers, their location and classification of cars according to several categories including: Buying, Maint, Doors, Persons, Lug_boot, Safety, and Overall. ANN was used in forecasting car acceptability. The results showed that ANN model was able to predict the car acceptability with 99.12 %. The factor of Safety has the most influence on car acceptability evaluation. Comparative study method is suitable for the evaluation of car acceptability forecasting, can also be extended to all other areas

Effects of ammonia-ambient annealing on physical and electrical characteristics of rare earth CeO2 as passivation film on silicon

Effects of post-deposition annealing at 400–1000 °C in ammonia (NH3) gas ambient towards physical and electrical characteristics of metal-organic decomposition derived CeO2 films spin-coated on n-type Si substrates were studied. The use of NH3 annealing as N and H sources has promoted nitridation and passivation occurring at interface between the CeO2 and Si. Mixed oxidation states (Ce4+ and Ce3+) were detected in the samples via the detection of CeO2 and Ce2O3 phases, confirmed using high resolution X-ray diffraction analysis, Raman, and Fourier Transform Infrared studies. An increase in nitridation effect with respect to temperature has impeded the formation of Ce2Si2O7 interfacial layer (IL) while the enhancement of passivation effect has triggered a decrease in interface trap density. Corresponding effects towards metal-oxide-semiconductor characteristics of the samples were discussed in details