253 results for “PIC”

Research ArticleOpen accessIn the keywordsSimulation and Implementation of Quasi Resonant DC-DC ConverterP. Parvathy, N. DevarajanProblem statement: A half-bridge LLC resonant converter with a voltage doubler rectifier has a simple structure and its Zero-Voltage-Switching (ZVS) capability is excellent from zero to full load condition. But conduction loss is more due to high circulating energy thus reducing the system efficiency. Moreover a variable frequency control method makes the control circuits more complicated than those using the … …Journal of Computer Science, Vol. 8, Issue 10 · 29 Aug 2012 · 7,142 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsGenetic Diversity of Some Saudi Barley (Hordeum Vulgare L.) Landraces Based on Two Types of Molecular MarkersMohamed Abdel Hamid Mohamed El-Awady, Adel Ahmed El-Sayed El-Tarras, Salah El-Din El-AssalProblem statement: Very little is known about the genetic diversity and morphological variability present in barley landrace in KSA, a country experiencing loss of biodiversity because of replacement of landraces with modern landraces. Approach: The molecular markers RAPD and ISSR were used as an efficient tools to estimate the intra-and inter-cultivar polymorphism among six barley KSA landraces collected from different … …American Journal of Applied Sciences, Vol. 9, Issue 5 · 12 Mar 2012 · 7,502 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsDC Motor Control Predictive ModelsRavinesh Singh, Godfrey C. Onwubolu, Krishnileshwar Singh, Ritnesh RamDC motor speed and position controls are fundamental in vehicles in general and robotics in particular. This study presents a mathematical model for correlating the interactions of some DC motor control parameters such as duty cycle, terminal voltage, frequency and load on some responses such as output current, voltage and speed by means of response surface methodology. For this exercise, … …American Journal of Applied Sciences, Vol. 3, Issue 11 · 30 Nov 2006 · 7,015 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsThe Benefits of Bezier, B-Spline Algorithm in the Industry WorldDjunaidy SantosoComputer Graphics is a science which is widely used in all fields, especially in the fied of Industries, companies, banking and even hospitals. In the aviation industries, marines and automotves, computer graphics with its latest technologies, can be used to solve graphical or imaging problems. Wherever images is involved, for eaxmple for patients' need in the hospitals, shipping engineers/designers or … …Journal of Computer Science, Vol. 11, Issue 1 · 24 Jan 2015 · 6,772 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsAntioxidant Potential in Lipophilic and Hydrophilic Extracts from Medicinal Herbs (Salvia officinalis and Echinacea angustifolia). A Comparison Between Assays Based on Electron Paramagnetic Resonance and SpectrophotometryFlavia Navari-Izzo, Riccardo Izzo, Mike F. Quartacci et al.Recently, detection of antioxidant activity of plant extracts has caught the attention of researchers. Determination of antioxidant activity is usually performed using stable free radicals. A number of assays is available for screening the antioxidant activity of food constituents, but few of these methods are applicable to lipophilic substances. EPR is the analytical technique that directly measures free radicals making … …American Journal of Agricultural and Biological Sciences, Vol. 7, Issue 4 · 6 Nov 2012 · 9,008 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsThe Application of Local Wisdom for Production of Condiment Isan' Food Ingredient into CommercialNitchapanrawee PhengpholProblem statement: The problem of the research derives from a lack of study and understanding about the production of condiment Isan food and ingredients being introduced into commercial, even though Isan food is popular among consumers widespread both inside and outside the country. The government introduced a policy to expand trade to create an export value of Isan products. The … …American Journal of Applied Sciences, Vol. 8, Issue 12 · 10 Oct 2011 · 7,217 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsThe Application of Local Wisdom for Production of Condiment Isan’ Food Ingredient into CommercialNitchapanrawee Phengphol, Songkoon Chantachon, Phaibool BoonchaiProblem statement: The problem of research is derived from a lack of study and understanding about the production of condiment Isan food and ingredients being introduced into commercial, even though Isan food is popular among consumers, widespread both inside and outside the country. The government introduced a policy to expand trade to create an export value of Isan products. The … …Journal of Social Sciences, Vol. 7, Issue 4 · 10 Aug 2011 · 8,110 accessesView PDF Cite