in order to evaluate row spacing and microelements spraying on yield and some morphological traits ofpeppermint, a split plot experiment was conducted based on randomized complete block design with fourreplications in sari agricultural sciences and natural resources university during 2010-2011. threelevels of row spacing (50 × 10, 50 × 20 and 50 × 30 cm) and two levels of microelements (no spra...

A 4-factor, multilevel, full factorial design of 240 experiments was performed in order to investigate the effect of temperature on the inactivation efficiency of spiked Escherichia coli in simulated solar disinfection of a synthetic secondary effluent. The initial population of the microorganisms was 10, 10, 10 and 10 CFU/mL, the exposure time 1, 2, 3 and 4 h, the treatment temperature 20, 30,...

Biodiesel merupakan salah satu sumber energi alternatif yang dapat di perbaharui dan mampu untuk mengurangi ketergantungan nasional terhadap fosil. diproduksi dari minyak tumbuhan atau lemak hewan. Minyak nabati digunakan sebagai bahan baku adalah jelantah. jelantah mengandung asam bebas Free Fatty Acid (FFA) tinggi. Penurunan kadar FFA dilakukan melalui cara ekstraksi menggunakan DES terbuat c...