Results 171 to 180 of about 191,656 (310)

Symbolic Regression and Multi‐Objective Optimization of the Flory–Huggins Interaction Parameter for Hydrogels

Advanced Engineering Materials, EarlyView.
We develop a data‐driven method to derive the mathematical expressions of the Flory–Huggins interaction parameter χ for the swelling behavior of temperature–responsive hydrogels. Starting from initial assumptions of χ, our workflow combines Bayesian optimization, Flory–Rehner theory, and symbolic regression to generate candidate χ expressions.
Yawen Wang, Adrian Ehrenhofer, Thomas Wallmersperger   +2 more
wiley   +1 more source

Cetrimonium bromide and potassium thiocyanate assisted post-vapor treatment approach to enhance power conversion efficiency and stability of FAPbI₃ perovskite solar cells. [PDF]

RSC Adv, 2023
Kumar A, Singh S, Sharma DK, Al-Bahrani M, Alhakeem MRH, Sharma A, Anil Kumar TC.   +6 more
europepmc   +1 more source

Fibre optical parametric devices for large frequency-shift wavelength conversion

, 2012
In this thesis, I investigate fibre optical parametric amplifiers (OPA) and oscillators (OPO), in terms of their potential for efficient large frequency-shift wavelength conversion. The underlying physical mechanism of fibre four wave mixing (FWM) offers
van der Westhuizen, Gysbert Johannes
core  

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Predicting Power Conversion Efficiency of Organic Photovoltaics: Models and Data Analysis. [PDF]

ACS Omega, 2021
Eibeck A, Nurkowski D, Menon A, Bai J, Wu J, Zhou L, Mosbach S, Akroyd J, Kraft M.   +8 more
europepmc   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source

Tailoring Ba₃PCl₃-based perovskite solar cells via multi-parameter optimization for high power conversion efficiency. [PDF]

Sci Rep
Bhattarai S, Banthia R, Kumar A, Alali AS, Dwivedi DK, Tanti B, Maiti M, DasMahapatra S.   +7 more
europepmc   +1 more source

Improved Power Conversion Efficiency with Tunable Electronic Structures of the Cation-Engineered [A_i]PbI₃ Perovskites for Solar Cells: First-Principles Calculations. [PDF]

Int J Mol Sci, 2022
Al-Shami A, Sibari A, El Kenz A, Benyoussef A, El Moutaouakil A, Mounkachi O.   +5 more
europepmc   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Structural Configuration Effects of Freestanding TiO₂ Nanotube Arrays on Power Conversion Efficiency in Dye-Sensitized Solar Cells. [PDF]

Materials (Basel)
Gaudel GS, Yu SJ, Yang HY, Moon YC, Kim SH, Park SH, Jun BH, Kim YJ, Rho WY.   +8 more
europepmc   +1 more source