Computational and Mathematical Methods最新文献_第7页

Object classification in analytical chemistry via data-driven discovery of partial differential equations 通过偏微分方程的数据驱动发现在分析化学中的对象分类

Computational and Mathematical Methods Pub Date : 2021-04-04 DOI: 10.1002/cmm4.1164

Joshua Lee Padgett, Yusup Geldiyev, Sakshi Gautam, Wenjing Peng, Yehia Mechref, Akif Ibraguimov

{"title":"Object classification in analytical chemistry via data-driven discovery of partial differential equations","authors":"Joshua Lee Padgett, Yusup Geldiyev, Sakshi Gautam, Wenjing Peng, Yehia Mechref, Akif Ibraguimov","doi":"10.1002/cmm4.1164","DOIUrl":"10.1002/cmm4.1164","url":null,"abstract":"Glycans are one of the most widely investigated biomolecules, due to their roles in numerous vital biological processes. However, few system-independent, LC-MS/MS (liquid chromatography tandem mass spectrometry) based studies have been developed with this particular goal. Standard approaches generally rely on normalized retention times as well as m/z-mass to charge ratios of ion values. Due to these limitations, there is need for quantitative characterization methods which can be used independently of m/z values, thus utilizing only normalized retention times. As such, the primary goal of this article is to construct an LC-MS/MS based classification of the glycans derived from standard glycoproteins and human blood serum using a glucose unit index as the reference frame in the space of compound parameters. For the reference frame, we develop a closed-form analytic formula via the Green's function of a relevant convection-diffusion-absorption equation used to model composite material transport. The aforementioned equation is derived from an Einstein–Brownian motion paradigm, which provides a physical interpretation of the time-dependence at the point of observation for molecular transport in the experiment. The necessary coefficients are determined via a data-driven learning procedure. The methodology is presented in an abstractly and validated via comparison with experimental mass spectrometer data.","PeriodicalId":100308,"journal":{"name":"Computational and Mathematical Methods","volume":"3 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/cmm4.1164","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76742912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

A fractional model of Casson fluid with ramped wall temperature: Engineering applications of engine oil 壁面温度变缓的卡森流体的分数模型:发动机润滑油的工程应用

Computational and Mathematical Methods Pub Date : 2021-03-30 DOI: 10.1002/cmm4.1162

Muhammad Arif, Poom Kumam, Wiyada Kumam, Ilyas Khan, Muhammad Ramzan

{"title":"A fractional model of Casson fluid with ramped wall temperature: Engineering applications of engine oil","authors":"Muhammad Arif, Poom Kumam, Wiyada Kumam, Ilyas Khan, Muhammad Ramzan","doi":"10.1002/cmm4.1162","DOIUrl":"10.1002/cmm4.1162","url":null,"abstract":"This study is focused to discuss the applications of non-Newtonian fluid in engineering problems. In this article magneto-hydrodynamics Casson fluid have taken with ramped temperature along an infinite plate with oscillations. In addition, in the present study we have considered the effect of porous media, chemical reaction, and radiation. Mostly, non-Newtonian fluids uses for the lubrication purposes such as, engine oil, grease, and so forth. In the present study engine oil EO is selected as base fluid due to enormous applications in engineering. To enhance the rate of heat transfer two nanoparticles molybdenum disulfide (MoS2) and graphene oxide (GO) dispersed in EO. To transform the classical model into time fractional model Caputo–Fabrizio derivative have been used. To obtain the exact solutions for the proposed problem the Laplace transform is used. The solutions are depicted through graphs for various parameters to show the influence on fluid flow. Finally, we have compared the rate of heat transfer using different nanoparticles. It is worth noting that by using (MoS2) nanoparticle the heat transfer of engine oil can be enhanced up to 6.35% and by adding GO in regular engine oil the heat transfer can be enhanced up to 5.49%.","PeriodicalId":100308,"journal":{"name":"Computational and Mathematical Methods","volume":"3 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/cmm4.1162","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74552237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 25

On the basins of convergence in the magnetic-binary problem with angular velocity 带角速度的磁二元问题的收敛盆地

Computational and Mathematical Methods Pub Date : 2021-03-24 DOI: 10.1002/cmm4.1161

Md Sanam Suraj, Rajiv Aggarwal, Md Chand Asique, Amit Mittal

{"title":"On the basins of convergence in the magnetic-binary problem with angular velocity","authors":"Md Sanam Suraj, Rajiv Aggarwal, Md Chand Asique, Amit Mittal","doi":"10.1002/cmm4.1161","DOIUrl":"10.1002/cmm4.1161","url":null,"abstract":"The restricted three-body problem, where the primaries are magnetic dipoles, is discussed. In the predefined interval, the effect of the varying values of mass parameter <math>\u0000 <mrow>\u0000 <mi>μ</mi>\u0000 </mrow></math> and the angular velocity <math>\u0000 <mrow>\u0000 <mi>ω</mi>\u0000 </mrow></math> on the parametric variation of locations of the equilibrium points are illustrated. Indeed, the influence of the values of the ratio <math>\u0000 <mrow>\u0000 <mi>λ</mi>\u0000 </mrow></math> of the magnetic moments in the presence of angular velocity <math>\u0000 <mrow>\u0000 <mi>ω</mi>\u0000 </mrow></math> on the topology of the basins of convergence is discussed. The bivariate version of the well-known Newton–Raphson scheme is used to illustrate the basins of convergence on the configuration (x, y) plane. In addition, the correlations betwixt the basins of convergence associated to the equilibrium points and the linked number of iterations required to assure the preassumed precision are discussed. In this study, a rigorous and structured numerical investigation are illustrated by exhibiting how the values of <math>\u0000 <mrow>\u0000 <mi>λ</mi>\u0000 </mrow></math> and <math>\u0000 <mrow>\u0000 <mi>ω</mi>\u0000 </mrow></math> have significant influence on the shape, the topology and also the degree of fractality of the domain of basins of convergence. The results and outcomes of present study strongly indicate that the parameters <math>\u0000 <mrow>\u0000 <mi>ω</mi>\u0000 <mo>,</mo>\u0000 <mi>μ</mi>\u0000 </mrow></math>, and <math>\u0000 <mrow>\u0000 <mi>λ</mi>\u0000 </mrow></math> have significant influence in the electromagnetic binary system.","PeriodicalId":100308,"journal":{"name":"Computational and Mathematical Methods","volume":"3 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/cmm4.1161","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80638962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

On nonpolynomial monotonicity-preserving C1 spline interpolation 非多项式保持单调的C1样条插值

Computational and Mathematical Methods Pub Date : 2021-03-20 DOI: 10.1002/cmm4.1160

Domingo Barrera, Salah Eddargani, Abdellah Lamnii, Mohammed Oraiche

引用次数: 4

A remark on “ Global dynamics of a tritrophic food chain model subject to the Allee effects in the prey population with sexually reproductive generalized-type top predator” [Comp and Math Methods. 2019; E1079, pp. 1–23] 关于“受Allee效应影响的三营养食物链模型在有性生殖型顶级捕食者种群中的全局动态”的评论[Comp and Math Methods. 2019;《科学》，第2期，第1-23页。

Computational and Mathematical Methods Pub Date : 2021-03-15 DOI: 10.1002/cmm4.1159

Eric M. Takyi, Kwadwo Antwi-Fordjour, Said Kouachi, Rana D. Parshad

引用次数: 1

Wavelet-based collocation technique for fractional integro-differential equation with weakly singular kernel 弱奇异核分数阶积分微分方程的小波配置技术

Computational and Mathematical Methods Pub Date : 2021-03-13 DOI: 10.1002/cmm4.1158

Jyotirmoy Mouley, B. N. Mandal

引用次数: 1

The classic two-player gambler's ruin problem with successive events: A generalized variance 具有连续事件的经典双玩家赌徒破产问题:广义方差

Computational and Mathematical Methods Pub Date : 2021-03-12 DOI: 10.1002/cmm4.1156

Abid Hussain, Salman A. Cheema

引用次数: 2

Vectorial reduced differential transform method for fractional Cauchy–Riemann system of equations 分数阶柯西-黎曼方程组的向量约简微分变换方法

Computational and Mathematical Methods Pub Date : 2021-03-11 DOI: 10.1002/cmm4.1157

Tahir Naseem, Noreen Niazi, Muhammad Ayub, Muhammad Sohail

引用次数: 3

A data-driven approach to predicting the most valuable player in a game 预测游戏中最有价值的玩家的数据驱动方法

Computational and Mathematical Methods Pub Date : 2021-02-26 DOI: 10.1002/cmm4.1155

Francisco P. Romero, Catalina Lozano-Murcia, Julio A. Lopez-Gomez, Eusebio Angulo Sanchez-Herrera, Eduardo Sanchez-Lopez

{"title":"A data-driven approach to predicting the most valuable player in a game","authors":"Francisco P. Romero, Catalina Lozano-Murcia, Julio A. Lopez-Gomez, Eusebio Angulo Sanchez-Herrera, Eduardo Sanchez-Lopez","doi":"10.1002/cmm4.1155","DOIUrl":"10.1002/cmm4.1155","url":null,"abstract":"The identification of outstanding behaviors is a matter of essential importance in sports analytics. However, analyzing how human experts select each match's most valuable player (MVP) according to objective and subjective factors is a great challenge. This article proposes a data-driven approach for sports team performance based on the weighted aggregation of statistical indicators. The proposal is divided into two approaches: The first conducts a principal component analysis to examine the relationship between each game's statistical indicators. The other addresses a meta-heuristic analysis to weight the attributes and choose the MVPs optimally. Finally, we apply the proposed approach to the 2018 European Men's Handball Championship and take the “Player of the Match” of each game as an example to illustrate its usefulness and efficacy. We perform multiple analyses, including a comparison with a fuzzy multi-criteria decision-making method that show that the data-driven approach can predict the “Player of the Match” in most matches. It also allows us to estimate and quantify the expert evaluations, which are often difficult to obtain in a disaggregated form.","PeriodicalId":100308,"journal":{"name":"Computational and Mathematical Methods","volume":"3 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1002/cmm4.1155","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77435764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

A new family of skewed distributions with application to some daily closing prices 一个新的歪斜分布家族，应用于一些每日收盘价

Computational and Mathematical Methods Pub Date : 2021-02-18 DOI: 10.1002/cmm4.1154

Hassan S. Bakouch, Hugo S. Salinas, Naushad Mamode Khan, Christophe Chesneau

引用次数: 2