In this work we investigated the thermoluminescence proprieties of nanopourous aluminum oxide strips produced by anodic oxidation of aluminum in several solvents in order to obtain a suitable dosemeter for radiation dose measurements. The photoluminescence and infrared characterization were performed at room temperature using a Jobin Yvon Ramanor model U-1000 spectrometer using either a 150 W X...

Macronuclear DNA content in Paramecium caudatum was found to be almost unchanged with a mean of about 400C during the earlier two-thirds of the life span in terms of the number of fissions and then it dropped rapidly to about one-fifth of the initial content. The age when rapid DNA decline occurred corresponded to that when the characteristics of senescence appeared. This decreasing pattern of ...

Consumption of fossil energy continues to increase and therefore reserves are decreasing, thus the switchover using into new renewable is necessary. Biomass especially from oil palm empty fruit bunches one potential resource as that can mixture with coal fuel for power plant. However, biomass has several weaknesses fuel; it containing high potassium content low heating value. Potassium will rea...

Basil (Ocimum basilicum) leaf essential oil contains terpenoid compounds that have antibacterialactivity. This study aims to obtain hand cream preparations of basil oil, as well determinethe effect concentration variation liquid paraffin on the results evaluation preparation.In this study, three formulations were made withthree variations in paraffin, namely F1 (9%), F2 (10%), and F3 (11%).Furt...

In this project, we developed a low temperature (≤450C) silicon-germanium (SiGe) process using the Thermcopoly1/2 furnaces at SNF. Low stress (≤100MPa) poly SiGe has been successfully demonstrated with a deposition temperature below 450C and desired Si to Ge content ratio. Our SiGe deposition process is CMOS compatible and can enable a number of applications for microelectromechanical systems (...

A performance analysis on a vapour compression refrigeration system with various eco-friendly refrigerants of HFC152a, HFC32, HC290, HC1270, HC600a and RE170 were done and their results were compared with R134a as possible alternative replacement. The results showed that the alternative refrigerants investigated in the analysis RE170, R152a and R600a have a slightly higher performance coefficie...

Effect of artificial ageing temperature on the mechanical properties of Al-6Si-0.5Mg alloy containing 0.5 – 4 wt% Cu was studied. The solution treated alloys containing different amounts of Cu were aged isochronally for 1 hour at temperatures up to 300C. The precipitation stages during ageing were monitored by hardness measurements. Tensile and impact properties were determined by standard test...

Abstract The design of next generation β-type titanium implants requires detailed knowledge of the relevant stable and metastable phases at temperatures where metallurgical heat treatments can be performed. Recently, a standard specification for surgical implant applications was established for Mo-Ti alloys. However, the thermodynamic properties of this binary system are not well known and two ...


 Prunus Arminica.L seeds of Hunza cultivar were defatted with chloroform, methanol mixture (2:1v/v) by ultrasonic assisted extraction technique. The lipase and phospholipase extracted, incubated at 400C pH 6 in citrate buffer for 1 hour. lipolytic activities enzymes measured different temperatures i,e 30-700C , 3-9 solvents n-heptane Di-isopropyl ether Cyclo hexane. 10 % emulsion lecithin...

Ada beberapa faktor yang mempengaruhi suhu ruangan menjadi panas antara lain cuaca dan jumlah orang melebihi kapasitas. Beraktifitas didalam dapat mengganggu konsentrasi. Untuk mengatasi hal tersebut maka dibutuhkan alat untuk mendinginkan seperti kipas angin. Namun seringkali lupa mematikan angin sehingga menyebabkan komponen cepat rusak. Berdasarkan tersebut, penelitian ini bertujuan merancan...