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Search Results: 1 - 10 of 198478 matches for " Mohamed.G. Darwesh "
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Behavior Analysis in a learning Environment to Identify the Suitable Learning Style
Abdelaziz . K. Hamada,Magdy .Z. Rashad,Mohamed.G. Darwesh
International Journal of Computer Science & Information Technology , 2011,
Abstract: Personalized adaptive systems rely heavily on the learning style and the learner's behavior.Due to traditional teaching methods and high learner/teacher ratios, a teacher faces great obstacles inthe classroom. In these methods, teachers deliver the content and learners just receive it. Moreover,teachers can’t cope with the individual differences among learners. This weakness may be attributed tovarious reasons such as the high number of learners accommodated in each classroom and the lowteaching skills of the teacher himself/herself, Therefore, identifying learning styles is a critical step inunderstanding how to improve the learning process.This paper presented an automatic tool for identifying learning styles based on the Felder-Silvermanlearning style model in a learning environment using a social book marking website such aswww.tagme1.com .The proposed tool used the learners’ behaviour while they are browsing / exploring their favorite webpages in order to gather hints about their learning styles. Then the learning styles were calculated basedon the gathered indications from the learners' database.The results showed that the proposed tool recognition accuracy was 72% when we applied it on 25learners with low number of links per learner. Recognition accuracy increased to 86.66% when weapplied it on 15 learners with high number of links per learner.
From Learning Style of Webpage Content to Learner’s Learning Style
Mohamed.G. Darwesh,Magdy .Z. Rashad,Abdelaziz. K. Hamada
International Journal of Computer Science & Information Technology , 2012,
Abstract: Technology plays an important role in the development of students who can search for the conceptswhich they learn in the books on the Internet and find out more information on them. This will increasethe depth of their knowledge.According to some researches, students tend to be more active and more participative when technologyis being integrated in their lesson resulting to better comprehension and good performance.Using technology in the learning process can facilities automatic detection of the learner’s learningstyles which can help the learner to develop his coping strategies to compensate for his/her weaknesses,capitalize on his/her strengths, improve the quality of the learning process and make it more effective.This research presents an automatic tool for detecting learning styles in a learning environment byanalyzing the content of the learner’s favorite WebPages using social bookmarkingservices(www.tagme1.com) and shows that how actual behavior of the learners during the learningprocess can be used as an effective source for detecting their learning styles based on Felder-Silvermanlearning style model (FSLSM) .
Influence of fungicides and vesicular arbuscular mycorrhiza on growth and nutrient balance of soybean by used DRIS equation  [PDF]
Dalshad A. Darwesh, Kadija K. Mustafa
Agricultural Sciences (AS) , 2012, DOI: 10.4236/as.2012.35089
Abstract: A pot experiment was conducted to study the effect of mycorrhiza, fungicides in difference concentration and there combination on growth and nutrients balance index of soya bean. Tow AM treatments including with and with out mycorrhiza and tow fungicides (parasmid and ant-arcol) each of them including four concentration (0.0, 0.25, 0.5 and 1 Kg·donum-1) were tested in factorial completely randomized design in the three replication. The results indicates that the higher value of total dry matter weight was recorded from combination treatment (F1M1C1) which attained 11.09 gm·pot-1 ,while the lower value 2.25 gm·pot-1 was produced by combination treatment (F2M2C3) ,however the same combination treatments was showed that the nitrogen ,phosphorus ,magnesium and iron in the shoot tissues in the mycorrhizal plant with lower concentration of fungicides were significantly greater (P < 0.01) compared to control and higher concentration treatments. The higher concentration of the above mentioned nutrients (28.33, 8.36, 6.34 mg·g-1, 251.00 mg·K-1) was recorded. The result of nutrient index and nutrient balance index revealed that the lower NBI (56.18) was recorded in combination treatments (F1M1C1), while the higher NBI (2033.81) was produced from combination treatments (F2M2C3), moreover the results shows significant negative correlation ship between NBI and total dry matter weight (r = -0.63*) .
Rheological, Organoleptical and Quality Characteristics of Gluten-Free Rice Cakes Formulated with Sorghum and Germinated Chickpea Flours  [PDF]
Mohamed G. E. Gadallah
Food and Nutrition Sciences (FNS) , 2017, DOI: 10.4236/fns.2017.85037
Abstract: Gluten-free bakery products are produced for people suffering from celiac disease due to sensitivity to gluten. So, the aim of this work was to study the effect of partial substitution of rice flour at 20%, 30% and 40% with sorghum and germinated chickpea flours on rheological, physical, sensory properties and staling rate of prepared gluten-free cake. Obtained results showed that germinated chickpea flour had the highest contents of crude protein (23.62%), lipids (4.89%) and crude fibers (5.76%) as compared to other grain flours. Gradual increase in gelatinization temperature and decrease in maximum viscosity and setback were fond of cake batters with increasing the substituting levels of rice flour from 20% to 40% with sorghum or germinated chickpea flours in comparison to rice flour batter. No significant difference was observed in specific volume between rice cake and cake containing 20% of germinated chickpea and sorghum flours which given 2.71, 2.62 and 2.56 cm3/g, respectively. Data also revealed that gluten-free cake lightness (L*) and total intensity significantly increased with 40% of sorghum flour followed by 30 and 20% of sorghum flour. Substitution of 40% rice flour with germinated chickpea flour resulted in significant high in redness (a*), yellowness (b*) and chroma of gluten-free cake being 11.95, 33.72 and 35.77, respectively followed by substituted levels 30% and 20% which attributed to their natural yellow pigments compared with other investigated samples. Overall acceptability of gluten-free cakes was improved after adding 20, 30% of sorghum flour and 20% of germinated chickpea flour which being 90.7, 88.6 and 87.5, respectively compared to rice flour cake (88.4). Rice flour cake was more freshness than wheat flour cake and other treatments during storage duration. After 6 days, rice cake had significant high freshness (306.2%) followed by gluten-free cake samples with 20% of sorghum or germinated chickpea flours which given 294.5% and 289.4%, respectively. Generally, it could be concluded that the quality and nutritional properties of gluten-free
The Standard z39.50 For Search and Information Retrieval
Wessam Mahmoud Darwesh
Cybrarians Journal , 2004,
Abstract: A Research about z39.50 standard, it deals z39.50 history, definition, services, and its importance in libraries, then talk about z39.50 advantages and disadvantages, and finally deals the future of z39.50 witch acted by the next generation entitled ZING, and the revision of its 4th issue.
Evaluation of Limestone Interval in the Drilled Surface Section of Bn-1 Oil Well  [PDF]
Ali K. Darwesh, Thorkild Maack Rasmussen, Nadhir Al-Ansari
Engineering (ENG) , 2016, DOI: 10.4236/eng.2016.88048
Abstract: The first exploration oil well in any oil block consumes in general more time and cost than the other wells in the same block. Evaluating the drilled wells serves to improve the future operations. This paper evaluates the drilled surface section through real field data for the first exploration oil well drilled in one of the oil blocks, in Kurdistan north of Iraq. The surface section of the well was drilled with the conventional method to penetrate many different geological formations with tight intervals. Drilling efficiency and the difficulties encountered are discussed and explained using various data sources. All daily drilling reports concerning a specific interval were studied. This includes weight on bit, string rotation, mud pump flow and penetration rate. Evaluation was carried out by analyzing the used controllable drilling parameters with the formations features. Penetration of the Pila Spi formation (Middle Eocene) was the most difficult formation in the drilled section. Microsoft Office 365 Pro Plus used in making graphs and Excel tables. Evaluations showed that the conventional technology used left many negative effects, like increase in None Productive Time NPT, cost and ground water pollution. Simultaneous Casing Drilling method proposed as an alternative method for the future campaign.
Kicks Controlling Techniques Efficiency in Term of Time  [PDF]
Ali K. Darwesh, Thorkild Maack Rasmussen, Nadhir Al-Ansari
Engineering (ENG) , 2017, DOI: 10.4236/eng.2017.95028
Abstract: Kicks are the result of under balance drilling operation. Time consumed to control the kicks will be different in depending on the controlling technique. Drilling fluid considered as a first barrier to control formation pressure and well kicks. Any advance in drilling fluids leads to more controlled operation in term of time. This paper will follow the general increasing profile of pressure before entering the reservoir. Both methods of well controlling technique; circulating techniques and non-circulating have been implemented in many oil blocks. The process of designing and casing selection, setting depth and many other issues is predominately dependent on the utilization of accurate values of formation pressure. Formation pressures used to design safe mud weights to overcome fracturing the formation and prevent well kicks. Hence the emphasis has been placed on the practical utilization of kicks pressure near the reservoir. The presented relationships will help the engineer to better understand lithological columns and reduce potential hole problems during the kick appearance. Selecting the best well controlling practical method can lead to not harming the reservoir and more production later. Changes in some drilling fluid properties have been proposed with increasing the depth without damaging the reservoir. Suggestions in relation to the casing setting point of the intermediate section are also proposed. Standard equations with proper modification for gases and safety margin have been proposed for the future drilling operation in oil fields above the reservoir.
Time Optimizing near the Pay Zone  [PDF]
Ali K. Darwesh, Thorkild Maack Rasmussen, Nadhir Al-Ansari
Engineering (ENG) , 2017, DOI: 10.4236/eng.2017.910050
Abstract: Well control techniques are used in oil and gas drilling operations to control bottom hole pressure and avoid any fluid influx from formation to the well. These techniques are highly important near the pay zone in term of time. Controlling formation fluid pressure and thereby the formations behavior in a predictable fashion will help toward more optimized environmental friendly drilling operation. Time consumed to control the formation fluid pressure will range between few hours to many days. This paper discusses hydrostatic pressure distribution and changes near the pay zone for one oil blocks in Kurdistan, in the northern part of Iraq. Obtaining homogeneous increase in some drilling fluid properties will help the engineer to better interpret sampling of the lithological columns and reduce potential hole problems and operation time.
Chemically Modified Carbon Paste Electrode for Determination of Cesium Ion by Potentiometric Method  [PDF]
Refat F. Aglan, Gehad G. Mohamed, Hala A. Mohamed
American Journal of Analytical Chemistry (AJAC) , 2012, DOI: 10.4236/ajac.2012.38076
Abstract: A new chemically modified carbon paste electrode for cesium(I) ion determination based on potassium zinc hexacyan-oferrate (PZHCF) as an ionophore was prepared. The electrode exhibits a Nernstian response for Cs(I) ions over a wide concentration range from 1 × 10-6 to 1 × 10-1 mol·L-1 with a slope of 58 ± 0.5 mV·decade-1. It has a response time of about 35 s and can be used for a period of 3 months with good reproducibility. Detection limit obtained in the optimal conditions was 3 × 10-7 mol·L-1. The potentiometric response is independent of the pH of the solution in the pH range 4.0 - 8.0. The electrode possesses the advantages of low resistance, fast response over a variety of other cations. The proposed electrode is applied as a sensor for the determination of Cs(I) ion concentration in different samples solutions. The results showed a good correlation with the data obtained by atomic absorption spectrometric method.
Implementation of HACCP Plan for the Production of Egyptian Kishk (A Traditional Fermented Cereal-Milk Mixture)  [PDF]
Mohamed M. Abd El-Razik, Mohamed F. Y. Hassan, Mohamed G. E. Gadallah
Food and Nutrition Sciences (FNS) , 2016, DOI: 10.4236/fns.2016.713116
Abstract: The aim of this study is implementation of Hazard Analysis and Critical Control Points (HACCP) system during production of Egyptian Kishk on small scale production. Kishk is a traditional dry fermented product consisted from salted sour butter milk (Laban zeer) or yoghurt with cracked and bran free parboiled wheat grains (Burghol); the mixture of cereal and milk allows fermenting at ambient temperature for different periods, then the fermented mixture is formed in ball form and dried. Kishk is consumed in Egypt and in most Arab countries. Since Kishk is prepared by traditional and consumed widely, safety of this product is very important in terms of consumer health. Therefore, HACCP system as food safety tool was adopted during preparation of Kishk. Hazard analysis of raw materials and during different production steps was established. A simple HACCP plan was implemented; critical control points of production were determined; critical limits, corrective actions and monitoring procedures for each critical control points were established; verification procedures were also discussed.
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