Sign inSubmit
Tips: “quotes” for a phrase · author:Lee · a DOI goes straight to its article

142 articles for “low frequency”
Set a search alert
Also matching:1 special issue
Research ArticleOpen accessIn the abstractVLSI Implementation of Novel Class of High Speed Pipelined Digital Signal Processing Filter for Wireless ReceiversRozita Teymourzadeh, Yazan Samir Algnabi, Masuri Othman et al.Problem statement: The need for high performance transceiver with high Signal to Noise Ratio (SNR) has driven the communication system to utilize latest technique identified as over sampling systems. It was the most economical modulator and decimation in communication system. It has been proven to increase the SNR and is used in many high performance systems such as in the … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 4 · 5 Nov 2010 · 7,820 accessesView PDFCite
Research ArticleOpen accessIn the abstractSafety and Efficacy of an Ayurvedic Formulation Cystone in Management of Ureteric Calculi: A Prospective Randomized Placebo Controlled StudyN.K. Mohanty, R.L. Nayak, Pralhad S. PatkiProblem statement: Medical management of urolithiasis is still a challenge for modern medical practice. In the present study, Cystone tablet, an Ayurvedic formulation claimed to be useful in urolithiasis was evaluated for its safety and efficacy in reduction or expulsion of ureteric calculi and to assess the role of Cystone in relieving the clinical symptoms. Approach: This was a prospective … …American Journal of Pharmacology and Toxicology, Vol. 5, Issue 2 · 30 Jun 2010 · 12,374 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Relationship between School, Class and Co-Curriculum Absenteeism on the Academic Performance of Selected Secondary SchoolAzizi Yahaya, Jamaludin Ramli, Shahrin Hashim et al.Problem statement: The purpose of this study is to identify the relationship between causes of truant, types of truant and activities done during truant against academic achievement among the lower secondary students. Approach: The research instrument used in this study was questionnaire with Likert scale. The respondents for this study were 80 students were randomly chosen as respondents through simple … …Journal of Social Sciences, Vol. 5, Issue 4 · 31 Dec 2009 · 8,102 accessesView PDFCite
Research ArticleOpen accessIn the abstractOptimal Thyristor Control Series Capacitor Neuro-Controller for Damping OscillationsM. Magaji, M. W. MustafaThis study applies a neural-network-based optimal TCSC controller for damping oscillations. Optimal neural network controller is related to model-reference adaptive control, the network controller is developed based on the recursive "pseudo-linear regression". Problem statement: The optimal NN controller is designed to damp out the low frequency local and inter-area oscillations of the large power system. Approach: Two multilayer-perceptron neural networks … …Journal of Computer Science, Vol. 5, Issue 12 · 31 Dec 2009 · 7,283 accessesView PDFCite
Research ArticleOpen accessIn the abstractBasic Theoretical Backgrounds of the Engineering Design Procedure of a Drying PlantJamil Sami HaddadProblem statement: This study was made to reduce energy consumption and increase productivity of drying process in many industries, to achieve the required aim, design arithmetic methods and choose the parameters of the drying machine and computing additional factors including characteristics of materials and air flow effect. Approach: The design of these types of dryers did not include the addressed … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 2 · 30 Jun 2009 · 7,494 accessesView PDFCite
Research ArticleOpen accessIn the abstractAn Electrochemical Investigation of the Redox Properties of Murexide in Aqueous and Non-Aqueous MediaHossnia S. MohranKnowledge of solvent effects on the redox properties of Murexide (Mu) is important for understanding its role as an electron acceptor in analytical and inorganic chemistry. In the present study, an investigation of the electrochemical behavior of the compound by both Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) in both aqueous and non-aqueous solutions was undertaken. It is suggested … …American Journal of Applied Sciences, Vol. 6, Issue 5 · 31 May 2009 · 7,741 accessesView PDFCite
Research ArticleOpen accessIn the abstractRobust Decentralized Control of Unified Power Flow ControllerHossein Shayeghi, Ali AbdolalipourA new approach based on structured singular value is proposed for the robust decentralized Unified Power Flow Controller (UPFC) design. To achieve decentralization, using the schauder fixed point theorem the synthesis and analysis of Multi-Input Multi-output (MIMO) control system is translated into set of equivalent Multi-Input Single-Output (MISO) control system. Power systems such as the other industrial plants contain different … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,154 accessesView PDFCite
Research ArticleOpen accessIn the abstractThe Effects of Recombinant Human Erythropoietin and Tamoxifen on Growth and Angiogenesis of Mammary Tumor in Sprague-Dawley RatA. K. Sairah, A. Rasedee, O. Sheikh et al.Problem statement: Erythropoietin receptor (EPOR) has been detected in breast cancer cells and speculated to be involved in cancer growth, viability and angiogenesis. This has risen suspicious that EPO administration may enhance the severity of cancer. Approach: This study was undertaken to determine the effects of rHuEPO, Tamoxifen and their combination on the growth and angiogenesis of mammary tumor. Female … …American Journal of Pharmacology and Toxicology, Vol. 4, Issue 1 · 31 Mar 2009 · 7,807 accessesView PDFCite
Research ArticleOpen accessIn the abstractRamadan Fasting Diet Entailed a Lipid Metabolic Disorder Among Type 2 Diabetic Obese WomenMéghit Boumédiène Khaled, Slimane BelbraouetWe designed this study to assess the effect of diet during Ramadan fasting on body weight and on serum lipid components in type 2 diabetic obese women. During Ramadan of 2005, 89 diabetic women receiving oral treatment (BMI = 33.20±3.01 kg m-2), aged 52 (±5 years), were selected. The study was carried out over 3 periods-, before (T1: pre-fasting), during … …American Journal of Applied Sciences, Vol. 6, Issue 3 · 31 Mar 2009 · 7,868 accessesView PDFCite
Research ArticleOpen accessIn the abstractGenetic Diversity of Red Chittagong Cattle Using Randomly Amplified Polymorphic DNA MarkersMohammad Masud Rana Mufti, Mst. Parvin Mostari, Gautam Kumar Deb et al.Problem statement: Red Chittagong Cattle (RCC) is a potential genetic resource in Bangladesh having dairy potentialities, high resistance to disease and survive harse environmental condition while require low input supply. This resource is now disappearing due to indiscriminate crossing with other local and exotic cattle. To conserve this resource, find out the genetic diversity of RCC is prime concern. Approach: … …American Journal of Animal and Veterinary Sciences, Vol. 4, Issue 1 · 17 Mar 2009 · 8,682 accessesView PDFCite