oalib

OALib Journal期刊

ISSN: 2333-9721

费用:99美元

投稿

匹配条件: “Farha Anjum” ,找到相关结果约331条。
列表显示的所有文章,均可免费获取
第1页/共331条
每页显示
Towards a Measurement of the ωπ Transition Form Factor
Khan Farha Anjum
EPJ Web of Conferences , 2012, DOI: 10.1051/epjconf/20123705007
Abstract: Two sets of experiments have been performed with the WASA detector at COSY. The intention is to compare the quality of the data between the pd→3He ω and pp→pp ω reactions, in the sense of a feasibility and background study for ω → π0e+e decays. The aim of the physics program is to determine the transition form factor of the ω meson which does not agree with standard Vector Meson Dominance. As a first step towards the ωπ transition form factor, we study the decay with a real photon, ω → π0γ. The status of the analysis is presented.
Primary sclerosing cholangitis and Biliary cirrhosis associated with Ulcerative colitis
Avinash Bardia,Santosh K. Tiwari,Sivaram G,Farha Anjum
Journal of Medical and Allied Sciences , 2011,
Abstract: Primary sclerosing cholangitis and Ulcerative colitis are caused by progressive inflammation of the bile duct and large intestine respectively. The existence of any plausible association between Primary sclerosing cholangitis and Ulcerative colitis remains highly elusive. Little is known about the incidence and prevalence of primary sclerosing cholangitis with concomitant Ulcerative colitis in the Indian subcontinent. We report a case of Primary sclerosing cholangitis with long standing Ulcerative colitis which later also developed Primary biliary cirrhosis.
Statistical Multiplexing of Homogeneous Streams results in Linear Bandwidth Gains  [PDF]
Bushra Anjum
Journal of Software Engineering and Applications (JSEA) , 2012, DOI: 10.4236/jsea.2012.512B001
Abstract: Statistical multiplexing of traffic streams results in reduced network bandwidth requirement. The resulting gain increases with the increase in the number of streams being multiplexed together. However, the exact shape of the gain curve, as more and more streams are multiplexed together, is not known.

In this paper, we first present the generalized result that the statistical gain of combining homogeneous traffic streams, of any traffic type, is a linear function of the number of streams being multiplexed. That is, given a fixed Quality of Service (QoS) constraint, like percentile delay, D, the bandwidth requirement of n streams to satisfy the delay constraint D is n x R x c where R is the bandwidth requirement of a single stream that satisfies the constraint D and c e (0,1]. We present the linear bandwidth gain result, using an extensive simulation study for video traces, specifically, streaming video (IPTV traces) and interactive video (CISCO Telepresence traces).

The linear bandwidth gain result is then verified using analytical tools from two different domains. First, we validate the linearity using Queueing Theory Analysis, specifically using Interrupted Poisson Process (IPP) and Markov Modulated Poisson Process (MMPP) modeling. Second, we formally prove the linear behavior using the Asymptotic Analysis of Algorithms, specifically, the Big-O analysis.

Approach for Developing Scientific News Aggregators Using ATOM Feeds
Farha Shaikh,Anand Rajawa
International Journal of Electronics and Computer Science Engineering , 2012,
Abstract: Scientists want to stay connected with everything that is new and innovative in the world, so they constantly read and analyze several online scientific resources such as magazines and journals. A user needs to do a lot of searching through on the web to locate the articles which are important to their interest. The idea of a news aggregator is not new to scientific world. A news aggregator is a software application, which periodically reads several sources and displays them on a separate page such as Google news. The information is stored in XML format. A scientific news aggregator helps in structuring online resources into useful contents. These contents are automatically fetched from several online resources available on the Internet and categorized on a separate page. Mostly, RSS feeds are used to done this job. Atom feeds are more detailed and having advance feature than RSS feeds, helps to improve the performance of scientific news aggregator by giving more updated information. A modern view of an aggregator offers a friendly user interface for users by merging the news content. We are working on an interesting approach for the design and implementation of news aggregators which will collect and aggregate data from the web to acquire unstructured information and transform it into data that could be understood and dynamically processed. The proposed approach will combine various mechanisms in order to connect to the data sources specified, identify the categories of articles, extract the corresponding pieces of news and automatically place them into the knowledge database and automatically extract the new pieces of information in the knowledge base and display them on the Science News section
An Exploratory Study into the Efficacy of Learning Objects
Nicholas W. Farha
Journal of Educators Online , 2009,
Abstract: Learning objects have quickly become a widely accepted approach to instructional technology, particularly in on-line and computer-based learning environments. While there is a substantial body of literature concerning learning objects, very little of it verifies their efficacy. This research investigated the effectiveness of learning objects by comparing learning outcomes using a learning object with outcomes using a traditional textbook-based method of instruction. Participants were 327 undergraduate college students at a traditional public four-year coed institution, a private four-year women’s college, a private four-year engineering institution, and a public two-year community college. Through a series of independent samples t-tests and Analyses of Variance, results revealed mean scores for the learning object group that were nearly three times higher than the mean scores for the textbook-taught group. Gaming experience, age, gender, and learner preference were evaluated for their potential influence on the results; no statistically significant differences were found, implying that the learning object itself was central to the outcomes achieved. The future of learning objects is bright, and more empirical research is called for in the area of learning object effectiveness.
Adsorptive Removal of Antimony (III) Using Modified Montmorillonite: A Study on Sorption Kinetics  [PDF]
Ansar Anjum, Monika Datta
Journal of Analytical Sciences, Methods and Instrumentation (JASMI) , 2012, DOI: 10.4236/jasmi.2012.23027
Abstract: The adsorptive removal of antimony (III) has been successfully obtained on montmorillonite (MMT) and modified MMT from synthetic solution. The adsorption behavior of the modified and unmodified MMT has been investigated as a function of initial concentration of metal ion in the solution, pH of the solution and contact time using a batch extraction process. The optimized process can be applied for the adsorption, detection and estimation of antimony from 0.006 μg/ml (6.0 ppb) to 100.00 μg/ml (100.0 ppm) in aqueous solution. It has been observed that almost 99% of antimony (III) can be successfully extracted from a solution containing 100 μg/ml of the metal ion at pH 6.0 at 25?C ± 2?C. The investigation of the kinetics of sorption of antimony (III) on MMT/modified MMTshows intraparticle diffusion to be the rate limiting step during the initial stages of adsorption followed by chemisorption.
Characterizations of Hemirings by the Properties of Their k-Ideals  [PDF]
Muhammad Shabir, Rukhshanda Anjum
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.45104
Abstract:

In this paper we characterize those hemirings for which each k-ideal is idempotent. We also characterize those hemirings for which each fuzzy k-ideal is idempotent. The space of prime k-ideals (fuzzy k-prime k-ideals) is topologized.

Semantic Web Mining: Benefits, Challenges and Opportunities
Syeda Farha Shazmeen, Etyala Ramyasree
International Journal of Advanced Computer Research , 2012,
Abstract: Semantic Web Mining aims at combining the two areas Semantic Web and Web Mining by using semantics to improve mining and using mining to create semantics. Web Mining aims at discovering insights about the meaning of Web resources and their usage In Semantic Web, the semantics information is presented by the relation with others and is recorded by RDF. RDF which is semantic web technology that can be utilized to build efficient and scalable systems for Cloud. The Semantic Web enriches the World Wide Web by machine process able information which supports the user in his tasks, and also helps the users to get the exact search result .In this paper; we discuss the interplay of the Semantic Web with Web Mining, list out the benefits. Challenges, opportunities of the Semantic web are discussed.
Delta Modulation with PI Controller—A Comparative Study  [PDF]
A. I. MASWOOD, S. ANJUM
Journal of Electromagnetic Analysis and Applications (JEMAA) , 2009, DOI: 10.4236/jemaa.2009.13023
Abstract: The paper discusses the application of PWM delta modulation with PI controller as an alternative to the standard PWM techniques for providing gating signals to the voltage source inverters. Its inherent characteristics of constant volts/Hertz control without feedback complexity and boosting of the fundamental voltage makes it an excellent choice for motor drive applications. This paper discusses the comparison between a basic delta modulation, the advanced Delta modulation with PI controller and an optimized DMPI. It is shown that in addition to the aforementioned advantages, VSI with optimized DMPI produces superior load current/voltage waveforms compared to simple DMPI, when IGBT is employed as a switching device for the inverter. Since the tacho feedback or other traditional speed sensing means is not permissible in sealed motor or the pump, a novel method is used to monitor the motor speed from the terminal quantities like voltage, current, and motor input power factor.
Camera Localization in Distributed Networks Using Trajectory Estimation
Nadeem Anjum
Journal of Electrical and Computer Engineering , 2011, DOI: 10.1155/2011/604647
Abstract: This paper presents an algorithm for camera localization using trajectory estimation (CLUTE) in a distributed network of nonoverlapping cameras. The algorithm recovers the extrinsic calibration parameters, namely, the relative position and orientation of the camera network on a common ground plane coordinate system. We first model the observed trajectories in each camera's field of view using Kalman filtering, then we use this information to estimate the missing trajectory information in the unobserved areas by fusing the results of a forward and backward linear regression estimation from adjacent cameras. These estimated trajectories are then filtered and used to recover the relative position and orientation of the cameras by analyzing the estimated and observed exit and entry points of an object in each camera's field of view. The final configuration of the network is established by considering one camera as a reference and by adjusting the remaining cameras with respect to this reference. We demonstrate the algorithm on both simulated and real data and compare the results with state-of-the-art approaches. The experimental results show that the proposed algorithm is more robust to noisy and missing data and in case of camera failure.
第1页/共331条
每页显示


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