Results 121 to 130 of about 63,594 (263)

A Family of Bi-Univalent Functions Defined by( p, q)-Derivative Operator Subordinate to a GeneralizedBivariate Fibonacci Polynomials

European Journal of Pure and Applied Mathematics
Making use of a generalized bivariate Fibonacci polynomials, we propose a family of normalized regular functions ψ(ζ) = ζ + d2ζ2 + d3ζ3 + · · · , which are bi-univalent in the disc {ζ ∈ C : |ζ| < 1} involving (p, q)-derivative operator. We find estimates
B. Frasin, S. R. Swamy, A. Amourah, J. Salah, Ranjitha Hebbar Maheshwarappa   +4 more
semanticscholar   +1 more source

Advancing Solar Energy with Cs2TlAsI6 Double Halide Perovskite: A Simulation‐Driven Approach for High‐Efficiency Solar Cell

Advanced Electronic Materials, EarlyView.
This study uses SCAPS‐1D simulations to optimize Cs2TlAsI6‐based lead‐free perovskite solar cells, systematically evaluating 54 device architectures with varied transport layers. Key parameters—including band offsets, defect densities, and operating conditions—are analyzed, revealing a top efficiency of 26.92% and offering practical insights for the ...
Md. Tarekuzzaman, Khandoker Isfaque Ferdous Utsho   +1 more
wiley   +1 more source

Second Hankel determinant for a certain function class of bi-univalent functions associated with Salagean derivative operator

European Journal of Mathematics and Applications, 2023
In this work, we investigate the bounds on the fourth initial coefficient $|a_4|$ and the second Hankel determinant $|a_2a_4 - a^ 2_3|$ for a class of analytic and bi-univalent functions defined in the open unit disk.
Ezekiel Abiodun Oyekan, Ayotunde Olajide Lasode, Oluwasegun Adeshina Olukoya, Peter Oluwafemi Adepoju   +3 more
doaj  

Two Families of Bi-Univalent Functions Associating the (p, q)-Derivative with Generalized Bivariate Fibonacci Polynomials

Mathematics
Making use of generalized bivariate Fibonacci polynomials, we propose two families of regular functions of the type ϕ(ζ)=ζ+∑j=2∞djζj, which are bi-univalent in the disc {ζ∈C:|ζ|
S. R. Swamy, B. Frasin, D. Breaz, L. Cotîrlă   +3 more
semanticscholar   +1 more source

Aqueous Zinc‐Based Batteries: Active Materials, Device Design, and Future Perspectives

Advanced Energy Materials, EarlyView.
This review conducts a comprehensive analysis of aqueous zinc‐based batteries (AZBs) based on their intrinsic mechanisms, including redox reactions, ion intercalation reactions, alloying reactions, electrochemical double‐layer reactions, and mixed mechanisms, systematically discussing recent advancements in each type of AZBs.
Yan Ran, Fang Dong, Shuhui Sun, Yong Lei
wiley   +1 more source

Coefficient Estimates for New Subclasses of Analytic and Bi-Univalent Functions Defined by Al-Oboudi Differential Operator

Journal of Function Spaces and Applications, 2013
We introduce and investigate two new subclasses and of analytic and bi-univalent functions in the open unit disk For functions belonging to these classes, we obtain estimates on the first two Taylor-Maclaurin coefficients ...
Serap Bulut
doaj   +1 more source

Deposition of Pb‐Free CsGeI3−xClx in Atmospheric Conditions, and Exploring Suitable Carrier Transport Materials for Improving its Power Conversion Efficiency: A Numerical Simulation Approach

Advanced Energy and Sustainability Research, EarlyView.
Pb‐free all‐inorganic mixed‐halide perovskite CsGeI3–xClx is manufactured in air circumstances which is environmental friendliness and exhibits exceptional structural stability, fascinating optoelectronic characteristics, and photocatalytic activity.
Md. Kamruzzaman, Md. Faruk Hossain, Shah Azharul Islam, Al Momin Md Tanveer Karim, Harinarayan Das, Md. Al‐Helal   +5 more
wiley   +1 more source

Sakaguchi type functions defined by balancing polynomials [PDF]

Mathematica Bohemica
The class of Sakaguchi type functions defined by balancing polynomials has been introduced as a novel subclass of bi-univalent functions. The bounds for the Fekete-Szegö inequality and the initial coefficients $\vert a_2\vert$ and $\vert a_3\vert$ have ...
Gunasekar Saravanan, Sudharsanan Baskaran, Balasubramaniam Vanithakumari, Serap Bulut   +3 more
doaj   +1 more source

Bounds for the second Hankel determinant of certain bi-univalent functions

TURKISH JOURNAL OF MATHEMATICS, 2016
8 ...
NANJUNDAN, Magesh, VK, Balaji, ORHAN, Halit   +2 more
openaire   +5 more sources

Lithium extraction from salt‐lake brines using dicationic ionic liquids: ePC‐SAFT modeling and molecular mechanisms

AIChE Journal, EarlyView.
Abstract This work proposes a novel strategy for enhancing Li+ extraction from salt‐lake brines with the high Mg2+/Li+ ratio using dicationic ionic liquid (DIL)‐based extractants. The ternary mixture of the DIL [DOMIM][Tf2N]2, tributyl phosphate (TBP), and dichloromethane (DCM) as a diluent achieved a higher single‐stage Li+ extraction efficiency (86 ...
Gangqiang Yu, Yufeng Li, Xinhe Zhang, Iman Bahrabadi Jovein, Paul Figiel, Biaohua Chen, Yuanhui Ji, Gabriele Sadowski, Christoph Held   +8 more
wiley   +1 more source