Arab Journal of Basic and Applied Sciences最新文献_第9页

Arab Journal of Basic and Applied Sciences Pub Date : 2023-02-15 DOI: 10.1080/25765299.2022.2157951

S. Wananiyakul, Janyarak Tongsomporn

引用次数: 0

Lie analysis and laws of conservation for the two-dimensional model of Newell–Whitehead–Segel regarding the Riemann operator fractional scheme in a time-independent variable 关于时间自变量中Riemann算子分式格式的Newell–Whitehead–Segel二维模型的李分析和守恒定律

Arab Journal of Basic and Applied Sciences Pub Date : 2023-02-06 DOI: 10.1080/25765299.2023.2172840

Mohammad Abdel Aal, Omar Abu Arqub

引用次数: 1

Effects of chemical reaction and activation energy on Marangoni flow, heat and mass transfer over circular porous surface 化学反应和活化能对圆形多孔表面Marangoni流动、传热传质的影响

Arab Journal of Basic and Applied Sciences Pub Date : 2023-01-27 DOI: 10.1080/25765299.2023.2170064

E. Elbashbeshy, M. Fathy, K. M. Abdelgaber

引用次数: 0

Synthesis and evaluation of newly E-octadec-9-enoic acid derivatives as sustainable corrosion inhibitors for mild steel in 1.0 M HCl 新型E-十八碳-9-烯酸衍生物在1.0M盐酸中对软钢的可持续缓蚀剂的合成与评价

Arab Journal of Basic and Applied Sciences Pub Date : 2023-01-09 DOI: 10.1080/25765299.2022.2164649

Asma M. Elsharif

引用次数: 1

Adaptation of conformable residual series algorithm for solving temporal fractional gas dynamics models 自适应残差序列算法求解时间分数气体动力学模型

Arab Journal of Basic and Applied Sciences Pub Date : 2022-12-12 DOI: 10.1080/25765299.2022.2044595

Rasha, Amryeen, F. N. Harun, M. Al‐Smadi, A. Alias

引用次数: 3

Modeling and analysis of recovery time for the COVID-19 patients: a Bayesian approach 新冠肺炎患者康复时间的建模与分析：贝叶斯方法

Arab Journal of Basic and Applied Sciences Pub Date : 2022-12-12 DOI: 10.1080/25765299.2022.2148439

Kahkashan Ateeq, Saima Altaf, Muhammad Aslam

{"title":"Modeling and analysis of recovery time for the COVID-19 patients: a Bayesian approach","authors":"Kahkashan Ateeq, Saima Altaf, Muhammad Aslam","doi":"10.1080/25765299.2022.2148439","DOIUrl":"https://doi.org/10.1080/25765299.2022.2148439","url":null,"abstract":"The ongoing pandemic of COVID-19 has changed every aspect of life. Most of the people who become a victim of COVID-19 experience mild to moderate symptoms, but some people may become seriously ill. This illness, sometimes, may lead to a very painful death. The Fréchet distribution is one of the flexible distribution for survival time. Hence, in this article, the recovery time of COVID-19 patients is modeled by a new Fréchet-exponential (FE) distribution, and the parameters of the distribution are estimated in the classical and Bayesian paradigms. Since the Bayes estimators using informative priors are not in the closed form, the Lindley and Tierney–Kadane approximation methods are used for their evaluation. The results obtained through simulation studies and the COVID-19 data set assess the superiority of the Bayes estimators over the classical estimators in terms of minimum risks. Mathematically and graphically, it is shown that our proposed model appropriately fits the data set. The minimum values of Akaike information criterion, Bayesian information criterion, corrected Akaike information criterion, and Hannan-Quinn information criterion proves that the FE distribution better fit than the competitors' distribution for the data set about the recovery time of COVID-19 patients. © 2022 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group on behalf of the University of Bahrain.","PeriodicalId":37239,"journal":{"name":"Arab Journal of Basic and Applied Sciences","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42173773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Microcrystalline cellulose promotes superior direct compressed Boesenbergia rotunda (L.) Mansf. extract tablet properties to spray-dried rice starch and spray-dried lactose 微晶纤维素促进了优质的直接压缩Boesenbergia rotunda（L.）Mansf。喷雾干燥大米淀粉和喷雾干燥乳糖提取片剂的性能

Arab Journal of Basic and Applied Sciences Pub Date : 2022-12-12 DOI: 10.1080/25765299.2022.2153527

Jirapornchai Suksaeree, Chaowalit Monton, Natawat Chankana, L. Charoenchai

引用次数: 5

Analysis of plastically deformed functionally graded pressurized thick cylinder 功能梯度增压厚筒塑性变形分析

Arab Journal of Basic and Applied Sciences Pub Date : 2022-10-14 DOI: 10.1080/25765299.2022.2132711

M. Belhaou, N. Laghzale, H. Bouzid

引用次数: 0

Production and physico-chemical characteristics of pyrolyzed bio-oil derived from cow hooves 牛蹄热解生物油的生产及其理化特性

Arab Journal of Basic and Applied Sciences Pub Date : 2022-10-10 DOI: 10.1080/25765299.2022.2129633

J. Chukwuneke, J. E. Sinebe, H. O. Orugba, H. Olisakwe, C. Ajike

{"title":"Production and physico-chemical characteristics of pyrolyzed bio-oil derived from cow hooves","authors":"J. Chukwuneke, J. E. Sinebe, H. O. Orugba, H. Olisakwe, C. Ajike","doi":"10.1080/25765299.2022.2129633","DOIUrl":"https://doi.org/10.1080/25765299.2022.2129633","url":null,"abstract":"Abstract Pyrolysis is becoming increasingly popular as a method of producing liquid yield from biomass. It has the potential to help build a sustainable renewable fuel market while simultaneously maintaining environmental sustainability. In the present study, cow hooves are pyrolyzed in a fixed-bed batch reactor to investigate product dispersion and determine optimal temperature parameters for optimizing pyrolysis oil yield. Temperature effects on the distribution, elemental content, and physical qualities of major pyrolysis products, such as pyrolysis oil and bio-char, are investigated. At a pyrolysis temperature of 500 °C, the maximum pyrolysis oil production was found to be 50.50 wt%, with the amount of bio-char excluding the gas being 27.20 wt%. A CHNS analyzer, Gas chromatography-mass spectrometry (GC-MS), and Fourier-transform infrared (FTIR) spectroscopy are used to investigate the chemical composition of pyrolysis oil generated under optimal conditions. The fuel properties of the pyrolysis oil are also determined, and it was discovered that it has a favourable fire point, flash point, and pour point. The density of the pyrolysis oil was 1.03 kg/L, the viscosity was 10.2 cSt, and the heating value was 22.7 MJ/kg. The FTIR analysis of the pyrolysis oil reveals that it contains functional groups, such as alkene, carboxylic acid, alcohol, ether, and ketone. According to the GC-MS analysis, the principal components are ester (40%), fatty acids (31%), phenol (3.8%) and p-Cresol (2.9%). Unsaturated fatty acids are abundant in the pyrolysis oil from cow hooves, while saturated fatty acids are in short supply. According to the findings of this study, cow hoof pyrolysis oil has the potential to be used as a source of biodiesel.","PeriodicalId":37239,"journal":{"name":"Arab Journal of Basic and Applied Sciences","volume":"29 1","pages":"363 - 371"},"PeriodicalIF":0.0,"publicationDate":"2022-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44955847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Green synthesis of gold nanoparticles (AuNPs) using Caulerpa racemosa and evaluation of its antibacterial and cytotoxic activity against human lung cancer cell line 外消旋藻绿色合成金纳米粒子及其对人肺癌癌症细胞株的抗菌和细胞毒活性评价

Arab Journal of Basic and Applied Sciences Pub Date : 2022-10-04 DOI: 10.1080/25765299.2022.2127510

Palaniappan Pitchai, Prabhu Subramani, R. Selvarajan, R. Sankar, Ravikumar Vilwanathan, T. Sibanda

{"title":"Green synthesis of gold nanoparticles (AuNPs) using Caulerpa racemosa and evaluation of its antibacterial and cytotoxic activity against human lung cancer cell line","authors":"Palaniappan Pitchai, Prabhu Subramani, R. Selvarajan, R. Sankar, Ravikumar Vilwanathan, T. Sibanda","doi":"10.1080/25765299.2022.2127510","DOIUrl":"https://doi.org/10.1080/25765299.2022.2127510","url":null,"abstract":"Abstract The present study reports the synthesis of gold nanoparticles (AuNPs) using ‘sea grapes’ (Macroalgae) of Caulerpa racemosa extract in a simple, fast and environmentally friendly biogenic method. The formation of spherical, stable, polycrystalline nanoparticles with an average size of 18–45 nm was demonstrated by UV–vis spectroscopy, SEM, high-resolution transmission electron microscopy and X-ray diffraction measurements. Furthermore, FTIR analysis confirmed the presence of phytochemical constituents in the form of functional groups involved in AuNPs synthesis. Antimicrobial activities confirmed that Gram-negative bacteria, here represented by Escherichia coli, were found to be more sensitive to synthesized AuNPs than Gram-positive bacteria, represented by Staphylococcus aureus. The synthesized nanoparticles also showed cytotoxicity against human lung cancer cells (H460) with an IC50 value of 25 µg/mL. Furthermore, our findings show that AuNPs derived from C. racemosa extract are able to induce apoptosis activation via extrinsic and intrinsic pathways and mitochondrial pathways. These findings lay the groundwork for future research against emerging multi-drug resistant bacterial pathogens, as well as lung cancer treatment.","PeriodicalId":37239,"journal":{"name":"Arab Journal of Basic and Applied Sciences","volume":"29 1","pages":"351 - 362"},"PeriodicalIF":0.0,"publicationDate":"2022-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44004096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5