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Now showing items 191-200 of 255
Design of 12V DC to 240V AC inverter for induction motor application
(Universiti Malaysia Perlis (UniMAP), 2011-05)
An inverter is an electrical device that converts Direct Current (DC) to Alternating Current (AC). The converted AC can be at any required voltage and frequency with the use of appropriate transformers, switching, and ...
Power transformer magnetization under different frequency supply
(Universiti Malaysia Perlis (UniMAP), 2011-05)
Transformer is a vital link in a power system which has made possible the power
generated at low voltage to be stepped up to extra high voltages for transmission over
long distances and then transformed to low voltages ...
Extraction of essential oil derivatives from pomegranate seeds using different solvents
(Universiti Malaysia Perlis, 2011-05)
This project mainly focuses on the extraction efficiency of essential oil
derivatives from pomegranate seeds via atmospheric pressure extraction and high
pressure extraction methods. For atmospheric pressure extraction ...
Process screening studies on enantioselective extraction of (R)-Amlodipine using design of experiment (DOE)
(Universiti Malaysia Perlis, 2011-05)
The enantioselective extraction of (R)-amlodipine in a biphasic recognition chiral extraction (BRCE) system combining a hydrophobic L-tartrate in organic phase and hydrophilic β-cyclodextrin (β-CD) in aqueous phase has ...
Optimization of aqueous extraction condition of total phenolic compound from the leaves of Sirih Hijau (Piper betle L.)
(Universiti Malaysia Perlis, 2011-05)
Green betel (Piper betle L.) has long been regarded as food and well known for its medicinal properties. Experiment has been done to obtain total phenolic compounds of green betel leaves extract and antioxidant activity ...
Hydrogen production from agriculture waste by dark fermentation
(Universiti Malaysia Perlis, 2011-05)
Abundant biomass from various industries could be a source for biohydrogen
production where combination of waste treatment and energy production would be an
advantage. Potential biomass that could be the substrates for ...
Constructed wetland system for agricultural wastewater treatment using wetland plants
(Universiti Malaysia Perlis, 2011-05)
This study was conducted to study the performance of aquatic plants in wetland system
for in agricultural waste water treatment. The wastewater sample used in this study was
collected from the pond of dairy farm which ...
Scale-up from shaker flask to stirred-tank fermenter based on mass transfer coefficient of oxygen, kLa
(Universiti Malaysia Perlis, 2011-05)
This study is carried out to investigate gas-liquid mass transfer process in a shaker flask and a 2 L bioreactor. Deionized water was used as based medium whereas shaker flask was scaled up to a 2 L bioreactor scale by ...
Study on quality of wastewater from car wash premises
(Universiti Malaysia Perlis (UniMAP), 2011-04)
Car wash wastewater (CWW) normally contains oil and grease, rubber, paints,
phosphate, dust and sand and organic matter. The wastewater runoff from the car enters
the gutters gone into the storm water system. The wastewater ...
Physical parameter optimization of cellulase production by Aspergillus niger on solid-state fermentation of cassava waste
(Universiti Malaysia Perlis, 2011-04)
Cellulases are a group of hydrolytic enzymes and are capable of degrading
lignocellulosic materials contain carbohydrate polymers such as cellulose, hemicelulose
and starch. Cellulases have wide range of applications. ...