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Quark-Quark Scattering
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作者 Zaheer Uddin Khursheed Ather Siddiqui 《Journal of Physical Science and Application》 2012年第4期139-142,共4页
Scattering process always reveal valuable information. For example scattering of alpha particle in Rutherford's well known experiment revealed the existence of nucleus. Physicists have been studying collision process... Scattering process always reveal valuable information. For example scattering of alpha particle in Rutherford's well known experiment revealed the existence of nucleus. Physicists have been studying collision process both experimentally as well as theoretically to know much about particle Physics. It is believed that the quark-quark scattering results are same as those of lepton-lepton systems and they are mass independent. The aim of this work was to calculate amplitude cross section for heavy quarks. Our results reveal a mass dependence of these results for heavy quarks. 展开更多
关键词 Particles scattering scattering amplitude QUARKS quarks scattering.
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Hybrid Warehouse Model and Solutions for Climate Data Analysis
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作者 Hasan Hashim 《Journal of Computer and Communications》 2020年第10期75-98,共24页
Recently, due to the rapid growth increment of data sensors, a massive volume of data is generated from different sources. The way of administering such data in a sense storing, managing, analyzing, and extracting ins... Recently, due to the rapid growth increment of data sensors, a massive volume of data is generated from different sources. The way of administering such data in a sense storing, managing, analyzing, and extracting insightful information from the massive volume of data is a challenging task. Big data analytics is becoming a vital research area in domains such as climate data analysis which demands fast access to data. Nowadays, an open-source platform namely MapReduce which is a distributed computing framework is widely used in many domains of big data analysis. In our work, we have developed a conceptual framework of data modeling essentially useful for the implementation of a hybrid data warehouse model to store the features of National Climatic Data Center (NCDC) climate data. The hybrid data warehouse model for climate big data enables for the identification of weather patterns that would be applicable in agricultural and other similar climate change-related studies that will play a major role in recommending actions to be taken by domain experts and make contingency plans over extreme cases of weather variability. 展开更多
关键词 Data Warehouse HADOOP NCDC Data Set WEATHER
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Can We Predict the Change in Code in a Software Product Line Project?
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作者 Yasser Ali Alshehri 《Journal of Software Engineering and Applications》 2020年第6期91-103,共13页
Software programs are always prone to change for several reasons. In a software product line, the change is more often as many software units are carried from one release to another. Also, other new files are added to... Software programs are always prone to change for several reasons. In a software product line, the change is more often as many software units are carried from one release to another. Also, other new files are added to the reused files. In this work, we explore the possibility of building a model that can predict files with a high chance of experiencing the change from one release to another. Knowing the files that are likely to face a change is vital because it will help to improve the planning, managing resources, and reducing the cost. This also helps to improve the software process, which should lead to better software quality. Also, we explore how different learners perform in this context, and if the learning improves as the software evolved. Predicting change from a release to the next release was successful using logistic regression, J48, and random forest with accuracy and precision scored between 72% to 100%, recall scored between 74% to 100%, and F-score scored between 80% to 100%. We also found that there was no clear evidence regarding if the prediction performance will ever improve as the project evolved. 展开更多
关键词 Software Change Proneness Software Quality Machine Learning Decision Tree J48 Logistic Regression Naïve Bayes Random Forest Data Mining
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New Levels of the Pr Atom with Almost Similar Energies
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作者 Zaheer Uddin Imran Siddiqui +3 位作者 Shamim Khan B. Gamper Esam H.Abdul-Hafidh L. Windholz 《Journal of Physical Science and Application》 2012年第4期88-94,共7页
A Fourier transform (FT) spectrum of praseodymium (Pr) extending from UV to IR was investigated. Hyperfine (hf) structures of unclassified lines with sufficiently high signal to noise ratio (SNR) were analyzed... A Fourier transform (FT) spectrum of praseodymium (Pr) extending from UV to IR was investigated. Hyperfine (hf) structures of unclassified lines with sufficiently high signal to noise ratio (SNR) were analyzed and some new levels were found. We present these new levels in this work. Some of the new levels have energies almost equal to the energies of already known or other new levels, distinguished either by different values of angular momentum J or by their parity. 展开更多
关键词 Hyperfine structure PRASEODYMIUM fourier spectrum.
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Experimental results of the tribology of aluminum measured with a pin-on-disk tribometer: Testing configuration and additive effects 被引量:2
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作者 S.M.H.AHMER L.S.JAN +1 位作者 M.A.SIDDIG S.F.ABDULLAH 《Friction》 CSCD 2016年第2期124-134,共11页
关键词 ANTIWEAR Polytron additive aluminum metal LUBRICATION friction
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Teaching Syntactic Relations:A Cognitive Semiotic Perspective 被引量:1
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作者 Ghsoon Reda 《Language and Semiotic Studies》 2017年第2期1-21,共21页
This paper suggests a theoretical model for teaching syntactic relations to foreign students of English Linguistics using insights from Cognitive Grammar as developed in Langacker(e.g.1987,1991,1999) and elaborated on... This paper suggests a theoretical model for teaching syntactic relations to foreign students of English Linguistics using insights from Cognitive Grammar as developed in Langacker(e.g.1987,1991,1999) and elaborated on in Radden and Dirven(2007). The model deals with syntactic relations as participants in a prototypically structured network of events, radiating out from the experiential action chain schema(a skeletal concept of force dynamics involved in the interaction between entities)(see Langacker, 1999). This involves dealing with syntactic relations as meaning-making tools that collaborate with the verb in a regular manner manipulating the prototypical schema. The aim is to draw attention to the need to add a cognitive semiotic dimension to the teaching of sentence structure. Such a dimension exposes learners to the cognitive factors behind grammatical meaning making and may, therefore, result in a better understanding of language structure and use on the part of learners who can become English language teachers. 展开更多
关键词 action chain SCHEMA COGNITIVE GRAMMAR FIGURE-GROUND perception event SCHEMAS SYNTACTIC relations
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Ferdinand de Saussure in the Era of Cognitive Linguistics 被引量:1
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作者 Ghsoon Reda 《Language and Semiotic Studies》 2016年第2期89-100,共12页
Ferdinand de Saussure's thoughts on language came to light in 1916 with the publication of Cours de linguistique générale by his students. A hundred years on, the infl uence of his thoughts on modern lin... Ferdinand de Saussure's thoughts on language came to light in 1916 with the publication of Cours de linguistique générale by his students. A hundred years on, the infl uence of his thoughts on modern linguistics is still being pinpointed. This paper reviews Saussure's influence on the cognitive approaches to meaning and grammar. The main objective is to demonstrate how Saussure planted the seeds of Cognitive Linguistics through his semiotic model of the "linguistic sign"(a sound-concept pairing) and how the influence of this model is growing in the era of Cognitive Linguistics. The study demonstrates that Saussure has had a greater impact on modern linguistics than pointed out in the literature, considering that his thought on language underlies cognitive linguistics theories which can be described as representing a return to the pre-Saussurean notion of the non-arbitrariness of the linguistic sign. 展开更多
关键词 COGNITIVE Grammar COGNITIVE Semantics CONCEPTUAL BLENDING THEORY CONCEPTUAL METAPHOR THEORY LINGUISTIC category LINGUISTIC sign Prototype THEORY
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The Pragmatics of the Rhetorical Question in Selected(English)Qur’an Chapters
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作者 Waheed A.Bamigbade Lawan Dalha 《Language and Semiotic Studies》 2020年第4期103-125,共23页
This paper interrogates the pragmatic choice of the rhetorical question(RQ)as a linguistic resource in some disputational discourse in the verses of the English translated Qur’an.It argues that the choice of this sen... This paper interrogates the pragmatic choice of the rhetorical question(RQ)as a linguistic resource in some disputational discourse in the verses of the English translated Qur’an.It argues that the choice of this sentence-type not only puts the speaker in a position of control in powerful assertion of facts,but also strengthens the pragmatic acts in the context to be more emphatic.Adopting Mey’s(2001)Pragmatic Acts theory and Caponigro and Sprouse’s(2007)Concept of Common Ground,the paper does a close reading of the last forty Quranic chapters for a critical analysis and finds that RQ accounts for 15%(61)of the 410 verses in the seventeen(17)chapters that have RQs out of the last forty chapters investigated.We find that the Authorial Voice in the Qur’an employs the RQ as an argumentative strategy to perform the pragmatic acts of challenging,inviting,affirming,reminding,reinforcing,assuring,appealing,and warning in series of intellectual engagements with the addressees in order to put them in a reflective mode.It is concluded that the RQ is an effective,dialogic,evidence-gathering,change-seeking pragmatic tool for securing improved attitude and ideological understanding from the addressees.Addressees are sought after to be convinced by the Speaker in a dialogue,and then left alone to decide,which presents the Speaker as One that uses rational argument in the context of disputation to persuade humans in real dialogues so as to seek change. 展开更多
关键词 rhetorical question(RQ) the(English)Qur’an pragmatic acts common ground change-seeking pragmatic acts of challenging reinforcing and affirming
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