Results 111 to 120 of about 55,452 (285)

On circumferentially mean 𝑝-valent functions [PDF]

Transactions of the American Mathematical Society, 1955
1. In the paper [4] was given a geometric proof of the precise bound for the third coefficient of normalized regular univalent functions in the unit circle, a result first proved by Lowner with his parametric method. The present paper has its inception in the observation that the proof of [4] with suitable technical modifications applies also to the ...
openaire   +2 more sources

Synergized Tri‐Phase Anode via Purposive Ba2+ Doping at the La3+ Site in LaFe0.7Ni0.3O3‐δ for Improved SOFC Performance

Advanced Science, EarlyView.
Purposive doping of low electronegative Ba2+ (0.89) at La3+ (1.1) site in LaFe0.7Ni0.3O3‐δ induces the formation of a tri‐phase composite, which shortens Fe─O bond and lowers activation energy, thereby significantly improves electrical conductivity and catalytic activity, and finally offers a record‐high peak power density in La0.5Ba0.5Fe0.7Ni0.3O3‐δ ...
Qian Yang, Shuaihang Chen, Yongli Peng, Xuelong Li, Xiaojian Pan, Fang Wang, Nanya Long, Li Li, Yilin Wang, Lina Su, Yuesong Shen, Ling Huang   +11 more
wiley   +1 more source

Diazo Transfer From Nitrous Oxide Employing Phosphorus Ylides

Angewandte Chemie, EarlyView.
A phosphorus ylide‐mediated strategy achieves the direct fixation of nitrous oxide (N2O) to access diazo compounds, which after intra‐ or intermolecular trapping, afford N2‐containing organic building blocks. This approach provides an alternative to hazardous diazo‐transfer reagents and establishes N2O fixation as a sustainable methodology.
Jhen‐Kuei Yu, Jan Niclas Ludwig, Patrick Wolf Antoni, David Tymann, Max Martin Hansmann   +4 more
wiley   +2 more sources

On polynomial expansion of multivalent functions

International Journal of Mathematics and Mathematical Sciences, 1991
Coefficient bounds for mean p-valent functions, whose expansion in an ellipse has a Jacobi polynomial series, are given in this paper.
M. M. Elhosh
doaj   +1 more source

Coefficient Inequalities for $p$-Valent Functions

Analysis in Theory and Applications, 2018
In the present paper, the authors introduce a new subclass of $p$-valent analytic functions with complex order defined on the open unit disk $\mathbb{U}=\{z:z∈\mathbb{C}\ \text{and}\ |z|
openaire   +2 more sources

Self‐Activating Electrocatalysts for Water Splitting: Advancing Structure–Performance Understanding and Beyond

Advanced Energy Materials, EarlyView.
Self‐activating electrocatalysts offer strong potential for advanced water splitting, enabled by their dynamic compositional and structural evolution during operation. This review highlights recent advances in self‐activating OER and HER catalysts, emphasizing the driving forces and mechanisms underlying their adaptive behavior. A conceptual network of
Christean Nickel, Bahareh Feizi Mohazzab, Kiarash Torabi, David Leander Troglauer, Guillermo Corea, Shikang Han, Dandan Gao   +6 more
wiley   +1 more source

The Intricate Sabatier Optimality of Anion Electroreduction and Its Consequences for Nitrate Reduction

Angewandte Chemie, EarlyView.
The Sabatier principle and volcano plots declare that optimal electrocatalysis is found in the middle between strong and weak binding of key intermediates. However, it is shown here that during anion electroreduction, strong and weak binding are potential‐dependent concepts and volcanoes are mobile.
Mattia Salomone, Ioannis Katsounaros, Federico Calle‐Vallejo   +2 more
wiley   +2 more sources

Differential sandwich theorems for p-valent functions associated with generalized multiplier transformations

Le Matematiche, 2013
In this paper, we obtain some applications of theory of differential subordination, superordination and sandwich results involving an operator.
R. M. El-Ashwah, M. K. Aouf, A. Shamandy, S. M. El-Deeb   +3 more
doaj  

Some Properties of Certain Integral Operators on New Subclasses of Analytic Functions with Complex Order

Journal of Applied Mathematics, 2012
We define new subclasses of p-valent meromorphic functions with complex order. We prove some properties for certain integral operators on these subclasses.
Aabed Mohammed, Maslina Darus
doaj   +1 more source

Emerging Materials and Future Strategies for Solid Oxide Electrochemical Cells

Advanced Energy Materials, EarlyView.
Solid oxide electrochemical cells operate under strongly coupled electrochemical and thermodynamic conditions, where performance is constrained by interactions among crystal structure, defect chemistry, and interfacial evolution. This review, based on a structure‐defect‐property‐durability framework, reveals the roles of lattice symmetry and defect ...
Qiuchun Lu, Yufei Zhang, Han Zhao, Pooi See Lee, Daniel H.C. Chua   +4 more
wiley   +1 more source