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A novel approach to study generalized coupled cubic Schrödinger-Korteweg-de Vries equations

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Journal of Ocean Engineering and Science 2024年第1期9卷 13-24页

作者： Lanre Akinyemi P.Veeresha m.T.Darvishi Hadi Rezazadeh mehmet Senol Udoh Akpan Department of mathematics Lafayette CollegeEastonPAUSA Department of mathematics Christ Deemed to be UniversityBengaluru 560029India Department of mathematics Razi UniversityKermanshah 67149Iran Faculty of Engineering Technology Amol University of Special Modern TechnologiesAmolIran Department of mathematics Nev¸s ehir HacıBekta¸s Veli UniversityNev¸s ehirTurkey Drexel University Department of MathematicsPhiladelphiaPAUSA

The Kortewegde Vries(KdV)equation represents the propagation of long waves in dispersive media,whereas the cubic nonlinear Schrödinger(CNLS)equation depicts the dynamics of narrow-bandwidth wave packets consisting of short dispersive waves.A model that couples these two equations seems in-triguing for simulating the interaction of long and short waves,which is important in many domains of applied sciences and engineering,and such a system has been investigated in recent *** work uses a modified Sardar sub-equation procedure to secure the soliton-type solutions of the generalized cubic nonlinear Schrödinger-Korteweg-de Vries system of *** various selections of arbitrary parameters in these solutions,the dynamic properties of some acquired solutions are represented graph-ically and *** particular,the dynamics of the bright solitons,dark solitons,mixed bright-dark solitons,W-shaped solitons,m-shaped solitons,periodic waves,and other soliton-type *** re-sults demonstrated that the proposed technique is highly efficient and effective for the aforementioned problems,as well as other nonlinear problems that may arise in the fields of mathematical physics and engineering.

关键词： CNLS equation modiﬁed Sardar sub-equation method KdV equation Solitons Long and short waves

BSN:Photometric Light Curve Analysis of Two Contact Binary Systems LS Del and V997 Cyg

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Research in Astronomy and Astrophysics 2024年第4期24卷 192-213页

作者： Atila Poro mehmet Tanriver Elham Sarvari Shayan Zavvarei Hossein Azarara Laurent Corp Sabrina Baudart Asma Ababafi Nazanin Kahali Poor Fariba Zare Ahmet Bulut Ahmet Keskin Astronomy Department of the Raderon AI Lab. BurnabyBC.Canada Department of Astronomy and Space Science Faculty of ScienceErciyes UniversityKayseri TR-38039Turkiye Erciyes University Astronomy and Space Science Observatory Application and Research CenterKayseri TR-38039Turkiye Independent Astrophysics Researcher TehranIran Department of Physics Shahid Beheshti UniversityTehranIran Faculty of Physics Shahid Bahonar University of KermanP.O.Box 76175KermanIran Double Stars Committee SociétéAstronomique de FranceParisFrance Dez Astronomical Association Khouzestan ProvinceDezfulIran Department of Physics Amirkabir University of TechnologyTehranIran Department of Physics Faculty of SciencesCanakkale Onsekiz Mart UniversityTerzioglu KampusuTR-17020CanakkaleTurkiye Astrophysics Research Center and Observatory Canakkale Onsekiz Mart UniversityTerzioğlu KampusuTR-17020CanakkaleTürkiye

The light curve analyses and orbital period variations for two contact binary stars,LS Del and V997 Cyg,are presented in this work which was conducted in the frame of the Binary Systems of South and North project Ground-based photometric observations were performed at two observatories in *** used the Transiting Exoplanet Survey Satellite(TESS)data for extracting times of minima and light curve analysis of the targe *** O-C diagram for both systems displays a parabolic *** Del and V997 Cyg’s orbital periods are increasing at rates of dP/dt=7.20×10^(-08)days yr^(-1)and dP/dt=2.54×10^(-08)days yr^(-1),respectively Therefore,it can be concluded that mass is being transferred from the less massive star to the more massive component with a rate of dm/dt=-1.96×10^(-7)m_(⊙)yr^(-1)for the LS Del system,and dm/dt=-3.83×10^(-7)m_(⊙)yr-1for V997 *** parameters of a third possible object in the system are also *** PHysics Of Eclipsing BinariEs Python code was used to analyze the light *** light curve solutions needed a cold starspot due to the asymmetry in the LS Del system’s light curve *** mass ratio fill-out factor,and star temperature all indicate that both systems are contact binary types in this *** methods were applied to estimate the absolute parameters of the systems:one method relied on the parallax of Gaia DR3,and the other used a P-m *** positions of the systems are also depicted on the m-L,m-R q-L_(ratio),and logm_(tot)-logJ_(0)*** recommend that further observations and investigations be done on the existence of a fourth body in this system.

关键词： (stars:)binaries:eclipsing methods:observational stars:individual(LS Del and V997 Cyg)

The efficacy of vitamin E in preventing arthrofibrosis after joint replacement

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Animal models and Experimental medicine 2024年第2期7卷 145-155页

作者： Yingfang Fan Jean Yuh Sashank Lekkala mehmet D.Asik Andrew Thomson madeline mcCanne mark A.Randolph Antonia F.Chen Ebru Oral Harris Orthopaedic Laboratory Department of Orthopaedic SurgeryMassachusetts General HospitalBostonMassachusettsUSA Department of Orthopaedic Surgery Harvard Medical SchoolBostonMassachusettsUSA Department of Surgery Harvard Medical SchoolBostonMassachusettsUSA Department of Orthopaedic Surgery Brigham and Women's HospitalBostonMassachusettsUSA

Background:Arthrofibrosis is a joint disorder characterized by excessive scar formation in the joint *** E is an antioxidant with potential anti-fibroblastic *** aim of this study was to establish an arthrofibrosis rat model after joint replacement and assess the effects of vitamin E supplementation on joint ***:We simulated knee replacement in 16 male Sprague–Dawley *** immobilized the surgical leg with a suture in full *** control groups were killed at 2 and 12 weeks(n=5 per group),and the test group was supplemented daily with vitamin E(0.2 mg/mL)in their drinking water for 12 weeks(n=6).We performed histological staining to investigate the presence and severity of *** staining andα2-macroglobulin(α2m)enzyme-linked immunosorbent assay(ELISA)were used to assess local and systemic *** weight bearing(total internal reflection)and range of motion(ROm)were collected for functional ***:The ROm and weight-bearing symmetry decreased after the procedure and recovered slowly with still significant deficit at the end of the study for both *** analysis confirmed fibrosis in both lateral and posterior periarticular *** E supplementation showed a moderate anti-inflammatory effect on the local and systemic *** vitamin E group exhibited significant improvement in ROm and weight-bearing symmetry at day 84 compared to the control ***:This model is viable for simulating arthrofibrosis after joint *** E may benefit postsurgical arthrofibrosis,and further studies are needed for dosing requirements.

关键词： arthrofibrosis range of motion total knee arthroplasty vitamin E

Two-and three-dimensional stability analysis of underground storage caverns in soft rock(Cappadocia, Turkey) by finite element method

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Journal of mountain Science 2022年第4期19卷 1182-1202页

作者： SARI mehmet Department of mining Engineering Aksaray UniversityAksaray 68100Turkey

Engineering design in soft rocks and its stability analysis exerts many challenges to rock engineers. many engineering works in Turkey’s Cappadocia region must face and tackle the existing sites covered by the soft rocks. This study is aimed to examine the stability condition of a typical underground storage cavern(USC) excavated in a soft rock in this region. For this purpose, two-and threedimensional stability analyses of the USCs were performed using the finite element method(FEm).Because of the inherent difficulty in characterizing soft/weak rock masses in the region using traditional classification systems, the stability of a typical USC was evaluated by representing the rock mass condition with two distinct scenarios in FEm *** these structures were unstable according to the 2D analysis conducted in RS2 software in the worstcase scenario, they were stable in the 3D analysis using RS3 software in both scenarios. Besides,feasible cover depths were examined to assess their possible effects on the factor of safety and deformation measurements. It was found that 15 m seems to be an optimal depth for excavating a typical USC in the soft rocks exposed in the region. The 3D FEm results provide valuable information to optimize the future planning and preliminary design of USCs.

关键词： Underground storage cavern Numerical modeling Soft rock FEm analysis Rock mass failure

Analytical and approximate solutions of nonlinear Schrödinger equation with higher dimension in the anomalous dispersion regime

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Journal of Ocean Engineering and Science 2022年第2期7卷 143-154页

作者： Lanre Akinyemi mehmet Senol m.S.Osman Department of mathematics Lafayette CollegeEastonPAUSA Nev¸s ehir HacıBekta¸s Veli University Department of MathematicsNev¸s ehirTurkey Department of mathematics Faculty of ScienceCairo UniversityGiza 12613Egypt

The generalized Riccati equation mapping method(GREmm)is used in this paper to obtain different types of soliton solutions for nonlinear Schrödinger equation with higher dimension that existed in the regimes of anomalous ***,we use the q-homotopy analysis method combined with the Laplace transform(q-HATm)to obtain approximate solutions of the bright and dark optical *** q-HATm illustrates the solutions as a rapid convergent *** addition,to show the physical behavior of the solutions obtained by the proposed techniques,the graphical representation has been provided with some parameter *** findings demonstrate that the proposed techniques are useful,efficient and reliable mathematical method for the extraction of soliton solutions.

关键词： q-homotopy analysis method Generalized Riccati equation mapping method Laplace transform

microstructural development and mechanical properties of drop tube atomized Al-2.85 wt%Fe

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Journal of materials Science & Technology 2022年第9期104卷 41-51页

作者： mehmet R.Abul Robert F.Cochrane Andrew m.mullis School of Chemical&Process Engineering University of LeedsLeeds LS29JTUK

Al-2.85 wt%Fe alloy has been subjected to non-equilibrium container-less solidification using a 6.5 m drop *** samples were collected and sieved into 7 sizes fractions ranging from 850μm to 53μm,with the estimated cooling rates being 150 to 11000 K s^(-1)*** analysis was employed on all droplet size fractions for identification and evolution of the phases,showing that Al,Al_(6)Fe and Al_(13)Fe_(4)were formed for all sizes while Al_(5)Fe_(2)was observed only in droplets≤150μm in *** evaluation was conducted by using SEm and optical microscopy,showing that droplet larger than 300μm in diameter exhibited distinct morphologies;microcellular,dendriticα-Al with inter-dendritic Al_(13)Fe_(4)eutectic and an AI-Al_(6)Fe eutectic *** increasing cooling rate,the Al-Al_(6)Fe region *** analysis reveals that increasing the cooling rate increased the dissolved Fe content inα-Al from 0.37 wt%Fe to 1.105 wt%Fe,and correspondingly the eutectic fraction decreased from 49.7 vol.%to 26.7 vol.%.measurement of the lamellar spacing allowed the eutectic growth velocity and interfacial undercooling to be calculated,wherein the Al-rich boundary of the eutectic coupled zone could be *** shows a coupled zone skewed significantly towards the intermetallic side of the *** order to understand the effect of non-equilibrium the solidification on the mechanical properties micro hardness of the droplets was *** micro-hardness has risen from 55.3 HV_(0.01)to 66.5 HV_(0.01)for≥850μm and≤75μm droplets,respectively.

关键词： Al-Fe alloys Container-less solidification microstructure TEm micro-hardness

Seasonal Changes in Copper and Cobalt Concentrations of PinusnigraL.,Cedrus libani and Cupressus arizonica Leaves to monitor the Effects of Pollution in Elazig (Turkey)

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光谱学与光谱分析 2013年第5期33卷 1331-1337页

作者： Nagihan m Karaaslan mehmet Yaman Firat University Sciences FacultyDepartment of ChemistryElazig-Turkey

The aim of this study is to examine seasonal changes in Cu and Co concentrations of three plant species for monitoring the effects of pollution in Elazig,*** this purpose,the leaves of the Pinus nigra L.,Cedrus libani and Cupressus arizonica together with soil samples were collected from different points depending on traffic intensity,nearness the city center and cement factory as well as control location during different months of the *** atomic absorption spectrophotometer(FAAS) was used for measurement of the metals in clear digests after the dry ashing *** and Co concentrations were in the ranges from 1.3to ***-1 andm 12to ***-1 and 6.0to ***-1,respectively.

关键词： Copper cobalt biomonitor Pinus nigra L. Cedrus libani Cupressus arizonica

Is every microorganism detected in the intensive care unit a nosocomial infection?Isn’t prevention more important than detection?

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World Journal of Clinical Cases 2022年第20期10卷 7184-7186页

作者： Fatma Yildirim Irem Karaman mehmet Yildirim Department of Pulmonary Disease and Critical Care medicine Pulmonary Intensive Care UnitUniversity of Health SciencesDışkapıYıldırım Beyazıt Training and Research HospitalAnkara 06110Turkey School of medicine Bahcesehir UniversityIstanbul 34740Turkey Department of Internal medicine Internal Medicine Intensive Care UnitUniversity of Health SciencesDışkapıYıldırım Beyazıt Training and Research HospitalAnkara 06110Turkey

The present letter to the editor is related to the study entitled“multidrug-resistant organisms in intensive care units and logistic analysis of risk factors.”Not every microorganism grown in samples taken from critically ill patients can be considered as an infectious *** and adequate information about nosocomial infections is essential in introducing effective prevention programs in ***,the development and implementation of care bundles for frequently used medical devices and invasive treatment devices(e.g.,intravenous catheters and invasive ventilation),adequate staffing not only for physicians,nurses,and other medical staff but also for housekeeping staff,and infection surveillance and motivational feedback are key points of infection prevention in the intensive care unit.

关键词： Critical care Prevention Intensive care unit Nosocomial infection Detection

On modules Satisfying S-Noetherian Spectrum Condition

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Communications in mathematics and Statistics 2023年第3期11卷 649-662页

作者： mehmetÖzen Osama A.Naji Ünsal Tekir Suat Koç Department of mathematics Sakarya UniversitySakaryaTurkey Department of mathematics Marmara UniversityIstanbulTurkey

Let R be a commutative ring having nonzero identity and m be a unital *** that S⊆R is a multiplicatively closed subset of ***,m satisﬁes S-Noetherian spectrum condition if for each submodule N of m,there exist s∈S and aﬁnitely generated submodule F⊆N such that sN⊆radm(F),where radm(F)is the prime radical of F in the sense(mcCasland and moore in Commun Algebra 19(5):1327–1341,1991).Besides giving many properties and characterizations of S-Noetherian spectrum condition,we prove an analogous result to Cohen’s theorem for modules satisfying S-Noetherian spectrum ***,we characterize modules having Noetherian spectrum in terms of modules satisfying the S-Noetherian spectrum condition.

关键词： Noetherian modules S-Noetherian modules Noetherian spectrum S-Noetherian spectrum condition