oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2019 ( 4 )

2018 ( 11 )

2017 ( 8 )

2016 ( 18 )

Custom range...

Search Results: 1 - 10 of 1239 matches for " Sundus Mahdi "
All listed articles are free for downloading (OA Articles)
Page 1 /1239
Display every page Item
The Effects of a Health-Based Context on Memory for Advertisements  [PDF]
Sundus Mahdi, Adrian Furnham
Psychology (PSYCH) , 2016, DOI: 10.4236/psych.2016.78117
Abstract: This study looked at whether heath-based advertisements were remembered when placed in a health (congruity) or non-health (incongruity) based television programme and the extent to which participant involvement influenced recall. The study aimed to test whether programme context had an effect on memory for congruent or incongruent advertisements. Sixth-form students watched either a health or non-health programme, with health or non-health centre-break advertisements. Sessions took place during the morning and afternoon. Free recall and cued recall tests were administered to test memory for the TV adverts. Results found no support for the cognitive priming theory, cognitive interference theory or for contrast effects. The study found little evidence to support any theory as to why programme surround should influence the recall of health advertisements. Limitations of the study are considered.
The Mechanism of Interacting Stellar Winds beyond Red Giant Branch  [PDF]
Sundus A. Abdullah Albakri, Sinan H. Ali
International Journal of Astronomy and Astrophysics (IJAA) , 2013, DOI: 10.4236/ijaa.2013.34041
Abstract:

The dynamical processes of the interaction of slow wind beyond Red Giant phase with fast wind of central star of nebula are evaluated. The mechanism of interaction stellar wind model (ISW) is found to be responsible for producing a relatively dense shell of gas which increases in mass and radius at a constant rate. Both slow wind and superwind are assumed to be time independent and radial density is calculated at initial time to ~ 60 yrs with the fast wind velocity (v 1000 km/s). The results showed that, at the outer rim of super wind region, a small density hump appears due to the relative velocity between slow winds and central star winds, in a good agreement with the previous models. The dynamical requirements of the observed expansion of planetary nebulae can be satisfied by the mechanism of interacting stellar wind model with reasonable mass loss rate from central star.

Decision Support Systems for JAVA Infrastructure Analysis and Control
Sundus Noory Shuker
Research Journal of Applied Sciences , 2012,
Abstract: Programmers and managers involved in large software projects need insight into the overall structure of their programs and the relationships between components. This study describes a method of analyzing programs whereby cross-referential, dependency and other information can be abstracted automatically during compilation to support decision-making. These items of information support library administration, configuration management, version control, software reusability and software composition. The analysis is accomplished by transcribing language grammar rules directly into Prolog as predicates in first-order logic.
Distances Scale Determination for a Planetary Nebula in Galactic Bulge  [PDF]
Sundus A. Abdullah, Nathera A. Ali, Mohamed A. Sallih
International Journal of Astronomy and Astrophysics (IJAA) , 2013, DOI: 10.4236/ijaa.2013.32008
Abstract:

Planetary Nebulae (PN) distances represent the fundamental parameter for the determination the physical properties of the central star of PN. In this paper the distances scale to Planetary Nebulae in the Galactic bulge were calculated related to previous distances scales. The proposed distance scale was done by recalibrated the previous distance scale technique CKS/D82. This scale limited for nearby PN (D ≤ 3.5 kpc), so the surface fluxes less than other distance scales. With these criteria the results showed that the proposed distance scale is more accurate than other scales related to the observations for adopted sample of PN distances, also the limit of ionized radius (Rio) for all both optically thick and optically thin in the rang of sizes (0.45 > Rio (pc) > 0.03).

Towards Economic Single-Phase Motor  [PDF]
Mahdi Alshamasin
Energy and Power Engineering (EPE) , 2013, DOI: 10.4236/epe.2013.59058
Abstract:

Studying of operation balance in single-phase induction motors is an issue of interest due to the need for reducing the power consumption and increasing the motors’ life. The paper focuses on improving the motor performance by balancing the stator phase operation for the most common-used connection diagrams of single-phase capacitor-run induction motors (SPCRIMs) and three-phase induction motors (TPIMs) operating from single-phase supply (SPS). Therefore, a mathematical model is used to balance the motor operation by varying the frequency supply voltage. Characteristics of balancing parameters are investigated, various methods of motor balancing are presented and comparisons were done among these balancing methods.

Cytokeratin positivity in myxopapillary ependymoma – a potential diagnostic pitfall
Sundus A Hussein, Monalisa Sur
Diagnostic Pathology , 2008, DOI: 10.1186/1746-1596-3-40
Abstract: We describe two cases of MPE with cytokeratin (AE1 AE3, CAM 5.2, Cytokeratin 7 and cytokeratin 20) expression.MPE can be positive for Cytokeratins (CAM 5.2, AE1 AE3, CK7) and focally for EMA, which could be misdiagnosed as metastatic carcinoma. In cases demonstrating epithelioid and clear cell morphology, the diagnosis of MPE should be made in conjunction with histology, proper immunohistochemical profile which includes co-expression of GFAP, S-100 protein and epithelial markers, radiologic findings and site. It is important to be aware of the cytokeratin profile in MPE to avoid erroneous diagnosis with other tumour entities.Myxopapillary ependymomas (MPE) generally occur in the filum terminale of the spinal cord, however, they have been described in extra-spinal locations such as subcutaneous tissue [1] and brain [2]. They are slow growing gliomas corresponding to WHO grade I [3]. The classical morphology shows papillae embedded in a myxoid/mucoid background. Each papilla contains a central fibrovascular core and is lined by cuboidal to elongated cells, occasionally showing clear cytoplasm. Microcysts are also present. The myxoid background contains both neutral and acidic mucopolysaccharides. Prognosis depends on the completeness of excision [4]. However, areas of solid growth pattern with aggregates of cells with "epithelioid morphology" can also be encountered which can mimic metastatic carcinoma. In addition, the presence of cells with clear cytoplasm can also be mistaken for chordoma. Diagnosis is easily missed due to these morphological similarities, which could affect patient management and hence, long term survival. A good number of studies have reported the immunophenotype of MPE and differential diagnosis of MPE aided by immunohistochemical stains [5-7]. Several studies have reported absence of cytokeratin expression in MPE [8-10].We describe two cases of MPE with cytokeratin expression. Two female patients, aged 46 and 72 years respectively presented wit
Improvment of Free Convection Heat Transfer Rateof Rectangular Heatsink on Vertical Base Plates  [PDF]
HamidReza Goshayeshi, Mahdi Fahiminia, Mohammad Mahdi Naserian
Energy and Power Engineering (EPE) , 2011, DOI: 10.4236/epe.2011.34064
Abstract: In this paper, the laminar heat transfer of natural convection on vertical surfaces is investigated. Most of the studies on natural convection have been considered constantly whereas velocity and temperature domain, do not change with time, transient one are used a lot. Governing equations are solved using a finite volume approach. The convective terms are discretized using the power-law scheme, whereas for diffusive terms the central difference is employed. Coupling between the velocity and pressure is made with SIMPLE algorithm. The resultant system of discretized linear algebraic equations is solved with an alternating direction implicit scheme. Then a configuration of rectangular fins is put in different ways on the surface and heat transfer of natural convection on these surfaces without sliding is studied and finally optimization is investigated.
A New Method of Voiced/Unvoiced Classification Based on Clustering  [PDF]
Mojtaba Radmard, Mahdi Hadavi, Mohammad Mahdi Nayebi
Journal of Signal and Information Processing (JSIP) , 2011, DOI: 10.4236/jsip.2011.24048
Abstract: In this paper, a new method for making v/uv decision is developed which uses a multi-feature v/uv classification algorithm based on the analysis of cepstral peak, zero crossing rate, and autocorrelation function (ACF) peak of short-time segments of the speech signal by using some clustering methods. This v/uv classifier achieved excellent results for identification of voiced and unvoiced segments of speech.
Antioxidant Properties of Water Extracts for the Iraqi Plants Phoenix Dactylifera, Loranthus Europeas, Zingiber Officinalis and Citrus Aurantifolia
Sundus Hameed Ahmed,Jo?o Batista Rocha
Modern Applied Science , 2009, DOI: 10.5539/mas.v3n3p161
Abstract: In the present study, the antioxidant activities (%AA) of the water extract for Phoenix dactylifera, Loranthus europeas, Zingiber officinalis, Citrus aurantifolia was measured by the TBARS method. Total phenol content, DPPH scavenger free radical activity and the iron chelation capacity of these extracts were also quantified. The results revealed that Phoenix dactylifera, Citrus aurantifolia had a significantly (P < 0.05) higher total phenol, and iron chelation ability, DPPH scavenging activity, and (%AA) than Loranthus europeas and Zingiber officinalis. Meanwhile the water extracts of Phoenix dactylifera and Citrus aurantifolia had the highest protective ability and this probably due to its higher antioxidant activity (AA%), total phenol content, iron chelation and DPPH scavenging activity.
Content-based Text Categorization using Wikitology
Muhammad Rafi,Sundus Hassan,Muhammad Shahid Shaikh
International Journal of Computer Science Issues , 2012,
Abstract: The process of text categorization assigns labels or categories to each text document according to the semantic content of the document. The traditional approaches to text categorization used features from the text like: words, phrases, and concepts hierarchies to represent and reduce the dimensionality of the documents. Recently, researchers addressed this brittleness by incorporating background knowledge into document representation by using some external knowledge base for example WordNet, Open Project Directory (OPD) and Wikipedia. In this paper we have tried to enhance text categorization by integrating knowledge from Wikitology. Wikitology is a knowledge repository which extracts knowledge from Wikipedia in structured/unstructured forms with a warping of ontological structure. We have augmented text document by exploring Wikitology fields like: {Bag of Words, titles, redirects, entity types, categories and linked entities}. We also propose and evaluate different text representations and text enrichment technique. The classification is performed by using Support Vector Machine (SVM and we have validated this experiment on 4-fold cross-validation.
Page 1 /1239
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.