Modern Physics Letters B最新文献_第5页

Organic solvent-free in-situ polymerization of waterborne polyurethane with amino-grafted silica for carbon dioxide separation 水性聚氨酯与氨基接枝二氧化硅的无有机溶剂原位聚合，用于二氧化碳分离

IF 1.9 4区物理与天体物理

Modern Physics Letters B Pub Date : 2024-04-09 DOI: 10.1142/s0217984924410033

Kai-Yen Chin, Angus Shiue, Li-Chun Wu, Shu-Mei Chang

{"title":"Organic solvent-free in-situ polymerization of waterborne polyurethane with amino-grafted silica for carbon dioxide separation","authors":"Kai-Yen Chin, Angus Shiue, Li-Chun Wu, Shu-Mei Chang","doi":"10.1142/s0217984924410033","DOIUrl":"https://doi.org/10.1142/s0217984924410033","url":null,"abstract":"The novel mixed-matrix membrane (MMMs) by incorporating covalently amino groups grafted nano-silica (Amino-NP) into an eco-friendly, organic solvent-free waterborne polyurethane (OSF-WPU) matrix for the separation application of CO2/N2. This investigation focused on the gas permeance and separation performance of the MMMs. The optimized CO2/N2 separation factor reached <math altimg=\"eq-00001.gif\" display=\"inline\" overflow=\"scroll\"><mn>8</mn><mo>.</mo><mn>2</mn><mn>1</mn><mo>±</mo><mn>0</mn><mo>.</mo><mn>4</mn><mn>7</mn></math>, with a CO2 permeance of <math altimg=\"eq-00002.gif\" display=\"inline\" overflow=\"scroll\"><mn>1</mn><mn>6</mn><mo>.</mo><mn>7</mn><mn>2</mn><mo>±</mo><mn>1</mn><mo>.</mo><mn>0</mn><mn>2</mn></math> GPU under conditions of 1.0 bar and 25∘C in a wet mixed-gas state. Incorporating even a tiny amount of Amino-NP efficiently enhanced CO2 permeability and CO2/N2 selectivity. OSF-WPU/Amino-NP MMMs demonstrated superior performance, emphasize their potential for stable long-term operation in practical CO2 separation applications.","PeriodicalId":18570,"journal":{"name":"Modern Physics Letters B","volume":"70 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Heat transfer analysis of ternary hybrid nanofluid through variable characteristic porous medium: Non-similar approach 三元混合纳米流体通过可变特性多孔介质的传热分析：非相似方法

IF 1.9 4区物理与天体物理

Modern Physics Letters B Pub Date : 2024-04-09 DOI: 10.1142/s0217984924502993

Farwa Haider, Metib Alghamdi, Taseer Muhammad

引用次数: 0

New soliton solutions of fractional Biswas–Milovic equation with Kerr, parabolic and cubic-quartic nonlinearities 具有克尔、抛物和三次方非线性的分数比斯沃斯-米洛维奇方程的新孤子解

IF 1.9 4区物理与天体物理

Modern Physics Letters B Pub Date : 2024-04-09 DOI: 10.1142/s0217984924503561

Esra Pekönür, Mutlu Akar

引用次数: 0

Electronic structure and optical properties of alkali metal X (X=Li, Na, K, Rb, Cs) adsorbed in the Te vacancy-deficient molybdenum ditelluride system: A first-principles study 碱金属 X（X=Li、Na、K、Rb、Cs）吸附在缺 Te 空位的二碲化钼体系中的电子结构和光学性质：第一原理研究

IF 1.9 4区物理与天体物理

Modern Physics Letters B Pub Date : 2024-04-09 DOI: 10.1142/s0217984924502713

Ying Dai, Guili Liu, Jianlin He, Junjie Ni, Guoying Zhang

{"title":"Electronic structure and optical properties of alkali metal X (X=Li, Na, K, Rb, Cs) adsorbed in the Te vacancy-deficient molybdenum ditelluride system: A first-principles study","authors":"Ying Dai, Guili Liu, Jianlin He, Junjie Ni, Guoying Zhang","doi":"10.1142/s0217984924502713","DOIUrl":"https://doi.org/10.1142/s0217984924502713","url":null,"abstract":"In the framework of density functional theory, based on first principles, the plane wave pseudopotential technique was utilized to investigate the electrical and optical properties of MoTe2 adjusted by alkali metal X adsorption on Te vacancy defects (X<math altimg=\"eq-00003.gif\" display=\"inline\" overflow=\"scroll\"><mspace width=\".17em\"></mspace></math>=<math altimg=\"eq-00004.gif\" display=\"inline\" overflow=\"scroll\"><mspace width=\".17em\"></mspace></math>Li, Na, K, Rb, Cs). The adsorption of alkali metals on Te vacancy-deficient MoTe2 monolayers has been computationally analyzed. Charge transfer, electronic structure, and optical properties of alkali metal adsorption were systematically studied. It is shown that the MoTe2 bandgap is significantly reduced under Te vacancies. Te vacancies are frequently active sites in TMDs materials. With the adsorption of alkali metal atoms X (X = Li, Na, K, Rb, Cs) in the Te vacancy MoTe2 system, Li atoms have the most substantial geometrical deformation and the minor adsorption energy and can improve the adsorption properties more effectively. The MoTe2 system undergoes a change from semiconductor to metal after adsorption. Regarding optical properties, firm absorption and reflection peaks appeared, and a blueshift phenomenon was observed in the mountains. It is expected that these discoveries are likely to guide the use of molybdenum ditelluride in optoelectronics.","PeriodicalId":18570,"journal":{"name":"Modern Physics Letters B","volume":"97 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600140","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Perturbation solution of multiphase flow of Williamson fluid through convergent and divergent conduits: Electro-osmotic effects 威廉姆森流体通过会聚和发散导管的多相流的扰动解：电渗效应

IF 1.9 4区物理与天体物理

Modern Physics Letters B Pub Date : 2024-04-09 DOI: 10.1142/s0217984924503482

Shahah Almutairi, Farooq Hussain, Mubbashar Nazeer, S. Saleem, Rubina Sultana Mohammed

{"title":"Perturbation solution of multiphase flow of Williamson fluid through convergent and divergent conduits: Electro-osmotic effects","authors":"Shahah Almutairi, Farooq Hussain, Mubbashar Nazeer, S. Saleem, Rubina Sultana Mohammed","doi":"10.1142/s0217984924503482","DOIUrl":"https://doi.org/10.1142/s0217984924503482","url":null,"abstract":"Problem Statement: The hafnium particles are suspended through carrier fluid (Williamson fluid) to discuss the momentum analysis in multiphase flow in two different types of configurations.Research gap: The analysis of the interaction of hafnium nanoparticles with the Williamson fluid model through the convergent and divergent conduits has not been discussed before.Methodology: The equation of continuity and momentum equations are used for this analysis. The solution of both fluid and particle velocities is obtained through the perturbation analytical technique. The perturbation solution is also compared with the numerical solution.Computational results: The Weissenberg number decays the velocity distribution. The suspension of hafnium particles updates the flow distribution through the conduits. The magnitude of the stream function decreases via the Weissenberg number.Applications: This study can help develop a new approach to cancer therapy by using a high atomic number of nanoparticles.Originality: This analysis is original and has neither been submitted nor published before.","PeriodicalId":18570,"journal":{"name":"Modern Physics Letters B","volume":"1 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Thermodynamic survey of a reactive MHD couple stress fluid through saturated porous substances with convective boundary conditions 具有对流边界条件的反应性 MHD 耦合应力流体通过饱和多孔物质的热力学研究

IF 1.9 4区物理与天体物理

Modern Physics Letters B Pub Date : 2024-04-09 DOI: 10.1142/s0217984924503536

Huda Alsaud, Anthony R. Hassan, Mustafa Inc, Akeem B. Disu, A. S. Oke, Shahram Rezapour

{"title":"Thermodynamic survey of a reactive MHD couple stress fluid through saturated porous substances with convective boundary conditions","authors":"Huda Alsaud, Anthony R. Hassan, Mustafa Inc, Akeem B. Disu, A. S. Oke, Shahram Rezapour","doi":"10.1142/s0217984924503536","DOIUrl":"https://doi.org/10.1142/s0217984924503536","url":null,"abstract":"This study explores the thermodynamic behavior of a reactive hydromagnetic liquid flowing through permeable materials, with convective cooling applied to the walls. This study holds practical significance in optimization of thermal management systems and it is crucial for enhancing the efficiency of controlling thermal runaway. The flow is modeled as a system of partial differential equations which are numerically solved. The modified Adomian Decomposition Method and Pade approximation technique are utilized in solving the equations. The results acquired for velocity and temperature distributions are thereby employed to estimate entropy generation rate with critical values over numerous effects of various boundaries over improvement of thermal runaway utilizing Pade approximation technique to show the significant impact of convective cooling term (Biot number) and other thermophysical parameters on the fluid flow. The outcomes show that fluid velocity continuously increases with rising values of inverse couple stress and fluid temperature increases Biot number.","PeriodicalId":18570,"journal":{"name":"Modern Physics Letters B","volume":"101 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600157","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of functionalized carbon nanotube on cement mortar: From experiment to DFT research 功能化碳纳米管对水泥砂浆的影响：从实验到 DFT 研究

IF 1.9 4区物理与天体物理

Modern Physics Letters B Pub Date : 2024-04-09 DOI: 10.1142/s0217984924502774

Lin Wei, GuiLi Liu, JiaXin Wang, ZhongHua Yang, GuoYing Zhang

{"title":"Effect of functionalized carbon nanotube on cement mortar: From experiment to DFT research","authors":"Lin Wei, GuiLi Liu, JiaXin Wang, ZhongHua Yang, GuoYing Zhang","doi":"10.1142/s0217984924502774","DOIUrl":"https://doi.org/10.1142/s0217984924502774","url":null,"abstract":"In this paper, functionalized nanotube-reinforced cementitious composites were prepared, and the mechanical property test results showed that the 28d flexural strength of the composite was increased by 41.58% at a hydroxylated carbon nanotube mass fraction of 0.08<math altimg=\"eq-00001.gif\" display=\"inline\" overflow=\"scroll\"><mspace width=\".17em\"></mspace></math>wt.% compared to the original cement mortar. Carboxylated carbon nanotubes with a mass fraction of 0.02%, on the other hand, increased the 28d compressive strength by 99.12%. Probing the effect of the presence of functional groups on carbon nanotubes on the CNT/C–S–H interface by first principles. The results showed that the shear strengths (11.392<math altimg=\"eq-00002.gif\" display=\"inline\" overflow=\"scroll\"><mspace width=\".17em\"></mspace></math>MPa and 14.130<math altimg=\"eq-00003.gif\" display=\"inline\" overflow=\"scroll\"><mspace width=\".17em\"></mspace></math>MPa) of hydroxylated carbon nanotubes and plain carbon nanotubes at the interface with cementitious (CNT-OH/CSH and CNT/CSH) were lower than the shear strengths (21.584<math altimg=\"eq-00004.gif\" display=\"inline\" overflow=\"scroll\"><mspace width=\".17em\"></mspace></math>MPa) of carboxylated carbon nanotubes at the interface with cementitious (CNT-COOH/CSH). The adsorption of functional groups on carbon nanotubes changes the electron distribution on the surface of carbon nanotubes. The introduction of carboxyl groups exacerbates the charge transfer between carbon nanotubes and cementitious groups and promotes the generation of solid chemical bonds. This is the reason that carboxylated nanotubes added as reinforcement to cement mortar give better strength to the composite than hydroxylated nanotubes.","PeriodicalId":18570,"journal":{"name":"Modern Physics Letters B","volume":"12 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Heat and mass transfer analysis of conducting non-Newtonian nanofluid flows over an elongating sheet with a non-uniform heat source 非牛顿纳米流体在非均匀热源拉伸片上的传导流的传热传质分析

IF 1.9 4区物理与天体物理

Modern Physics Letters B Pub Date : 2024-04-09 DOI: 10.1142/s0217984924503494

M. Vinodkumar Reddy, R. Meenakumari, G. Sucharitha, F. Ali, S. S. Zafar, P. Lakshminarayana

{"title":"Heat and mass transfer analysis of conducting non-Newtonian nanofluid flows over an elongating sheet with a non-uniform heat source","authors":"M. Vinodkumar Reddy, R. Meenakumari, G. Sucharitha, F. Ali, S. S. Zafar, P. Lakshminarayana","doi":"10.1142/s0217984924503494","DOIUrl":"https://doi.org/10.1142/s0217984924503494","url":null,"abstract":"Nanofluids help in many fields to improve the performance of thermal systems by augmenting heat transfer rates through their thermophysical properties. The performance of the nanofluids with various base fluids may be different. Therefore, the study and comparison of behaviors of various nanofluids are useful in several applications such as fuel as a coolant in automobiles, and in medical and electronic equipment to reduce the thermal resistance. This research proposed a novel model to investigate the flow behavior of three different nanofluids over an elongating surface in the presence of a non-uniform heat source and thermal radiation effects. This investigation describes how the considered nanofluids behave in the presence of a transverse magnetic field, and other effects. The proposed governing boundary layer partial differential equations (PDEs) are reformed into a system of nonlinear ordinary differential equations (ODEs) by introducing the proper similarity transformation. The finalized equations are solved numerically with the help of the ND solve package in Mathematica software. We intended how the fluid flow and heat transfer are affected by non-dimensional controlling factors with the help of graphics. Further, the calculations and discussions are accompanied by the numerical values of the skin friction coefficient and heat and mass transfer rates. According to the current findings, the Maxwell nanofluid exhibits superior performance in velocity, and the Oldroyd-B nanofluid shows more concentration and less temperature. As a special case, the results of this investigation are compared with the existing results, and found a good agreement between the results.","PeriodicalId":18570,"journal":{"name":"Modern Physics Letters B","volume":"20 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Generalized vortex flow of nanoparticle shapes over a permeable disc surface with generalized slip conditions 纳米颗粒形状在具有广义滑移条件的可渗透圆盘表面上的广义涡流

IF 1.9 4区物理与天体物理

Modern Physics Letters B Pub Date : 2024-04-09 DOI: 10.1142/s0217984924503469

Muhammad Rahman, Aqib Ali, Mustafa Turkyilmazoglu

{"title":"Generalized vortex flow of nanoparticle shapes over a permeable disc surface with generalized slip conditions","authors":"Muhammad Rahman, Aqib Ali, Mustafa Turkyilmazoglu","doi":"10.1142/s0217984924503469","DOIUrl":"https://doi.org/10.1142/s0217984924503469","url":null,"abstract":"This paper investigates the generalized vortex flow of nanofluid consisting of titanium dioxide (TiO2) with base fluid (H2O) over a permeable disk surface that generates a heat transfer process in the thermal boundary layer of the disk. Four types of non-spherical shapes of nanoparticles (blade, brick, cylinder and platelet) are considered for the research. The motion is produced when the fluid is far from the disk surface and rotates like a solid body with a constant angular velocity <math altimg=\"eq-00001.gif\" display=\"inline\" overflow=\"scroll\"><mi mathvariant=\"normal\">Ω</mi></math>. The partial differential equations (PDEs) are obtained using boundary layer approximations and then converted into ordinary differential equations (ODEs) using suitable similarity transformations. These nonlinear ODEs are solved using the bvp4c MATLAB solver. The effect of different parameters (n, A, <math altimg=\"eq-00002.gif\" display=\"inline\" overflow=\"scroll\"><mi>α</mi></math>, <math altimg=\"eq-00003.gif\" display=\"inline\" overflow=\"scroll\"><mi>ϕ</mi></math>, R and Pr) on the velocity components and temperature profile is shown graphically and in tabular results. This analysis concludes that for all non-spherical shapes, the velocity spectrum of all nanoparticles decreases when the values of factors such as power-law, suction, volume fraction and slip parameter increase. All non-spherical shapes of a nanofluid experience a decrease in fluid temperature due to the Prandtl number, while radiation numbers have the opposite effect.","PeriodicalId":18570,"journal":{"name":"Modern Physics Letters B","volume":"300 1","pages":""},"PeriodicalIF":1.9,"publicationDate":"2024-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140600532","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modern technique to study Cauchy-type problem of fractional variable order differential equations with infinite delay via phase space 通过相空间研究具有无限延迟的分数变阶微分方程的 Cauchy 型问题的现代技术

IF 1.9 4区物理与天体物理

Modern Physics Letters B Pub Date : 2024-04-09 DOI: 10.1142/s0217984924503433

Marwa Benaouda, Souhila Sabit, Hatıra Günerhan, Mohammed Said Souid

引用次数: 0