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A Proposed Design, Implementation and Control of Doubly Fed Switched Reluctance Motor

CES Transactions on Electrical Machines and Systems 2019年第1期3卷 101-106页

作者： eid gouda M.Salah H. the Electrical Engineering Department Faculty of EngineeringMansoura University35516Egypt

In this paper,rotor of switched reluctance motor(SRM)is employed by mounting copper windings on the rotor poles as well as the stator *** and stator windings are excited from DC supply in order to increase the developed electro-magnetic torque;thus enhancing the output power of the drive and keeping the system ***,the proposed SRM offers higher reliability than conventional one,if excitation of rotor windings is lost,the drive will turn into a conventional SRM,the drive will continue running as a conventional *** element method magnetics(FEMM)software is applied to obtain the magnetic characteristics of the proposed SRM.A control strategy for excitation of rotor and stator windings is ***/Simulink modeling of the proposed SRM is given and validated by practical *** Results on a prototype show that the proposed SRM is capable of achieving an increased torque compared with conventional SRM drive.

关键词： Doubly Fed SRM SRM Control Wounded Rotor.

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Dietary Intervention with Yoghurt, Synbiotic Yogurt or Traditional Fermented Sobya: Bio-Potency among Male Adolescents Using Five Bio-Markers of Relevance to Colonic Metabolic Activities

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Food and Nutrition Sciences 2014年第12期5卷 1131-1144页

作者： Laila Hussein Moustafa gouda Mohamed Fouad eid Labib Ranya Bassyouni Mahmoud Mohammad Children’s Nutrition Research Center Baylor College of Medicine Houston USA Dairy Science National Research Center Giza-Dokki Egypt Departments of Nutrition National Research center Giza-Dokki Egypt

The objective of the present work is to test the effectiveness of probiotic potency of regular yoghurt, synbiotic yoghurt and traditional fermented Egyptian sobya containing endogenous probiotic strains compared to unfermented rice milk porridge. Methods: The study consisted of 28 male subjects with mean age of 13.9 ± 0.1 years. The subjects were divided into four groups, three groups consumed one of three fermented supplements, while the fourth group served as a control group. Stool and urinary samples were carried out prefeeding and after 3-week nutritional intervention for assessing five indicators of revelance to colonic metabolic activities. The fermented supplements used for evaluation were regular yoghurt, synbiotic yoghurt and traditional fermented sobya;while the fourth group was given unfermented rice milk and served as control. Intestinal permeability was assessed by the urinary lactulose mannitol ratio. Results: The mean fecal total lactobacilli counts increased (P 0.05). Mean fecal short chain fatty acids concentrations (acetic;propionic and butyric) tended to increase following the intervention with synbiotic yogurt or sobya compared to respective pre-intervention values;but the difference didn’t attain significance (0.1>P> 0.05). The 3-week nutritiona

关键词： Probiotics Egyptian Male Adolescents Intestinal Microbiota Fecal Short Chain Fatty Acids

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