Results 91 to 100 of about 126,888 (287)

Magnetic and magnetocaloric properties of rare earth intermetallic compound Gd3Co4Ge13

AIP Advances
Magnetic and magnetocaloric properties of polycrystalline Gd3Co4Ge13 (Cubic, Yb3Rh4Sn13-type, Space group Pm-3n, No. 223, cP40) have been studied by carrying out dc magnetization measurements in applied magnetic fields up to 140 kOe.
A. V. Morozkin, A. V. Garshev, V. O. Yapaskurt, S. Quezado, S. K. Malik, R. Nirmala   +5 more
doaj   +1 more source

Topology of quasi divisor graphs associated with non-associative algebra

Ain Shams Engineering Journal
The visualization of graphs representing algebraic structures has increasingly gained traction in chemical engineering research, emerging as a significant scientific challenge in contemporary studies.
Muhammad Nadeem, Muhammad Kamran, Muflih Alhazmi, Mashaer Alsaeedi, Shreefa O. Hilali   +4 more
doaj   +1 more source

Irrational antibiotic use among secondary school teachers and university faculty members in Shiraz, Iran

International Journal of Preventive Medicine, 2012
Objective: The main aim of this study was to assess knowledge, attitude, and practice of university faculty members and high school teachers regarding irrational antibiotic use and self-medication. Methods: In this cross-sectional survey, 320 university
Mehrdad Askarian, Najmeh Maharlouie
doaj   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Optimal inverse Littlewood–Offord theorems [PDF]

, 2011
Let ηi, i=1,…,n, be iid Bernoulli random variables, taking values ±1 with probability 12. Given a multiset V of n integers v1,…,vn, we define the concentration probability asρ(V):=supxP(v1η1+⋯+vnηn=x).
Van Vu, Hoi Nguyen, Vu, Van, Nguyen, Hoi
core   +1 more source

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

The Synthesis and Spectral Properties of Merocyanine Dyes Based on 9H‑Fluorene-2,7-Dicarbonitrile

Журнал органічної та фармацевтичної хімії
Di-, tetra-, and hexamethine merocyanine dyes bearing donor heterocyclic end groups of different electron-donating abilities and the 9H-fluorene-2,7-dicarbonitrile moiety as the acceptor end group have been synthesized.
Iryna V. Kurdiukova, Volodymyr V. Kurdyukov, Andrii V. Kulinich   +2 more
doaj   +1 more source

Unified Mathematical Framework for Slicing and Symmetry Reduction over Event Structures

Journal of Applied Mathematics, 2014
Nonclassical slicing and symmetry reduction can act as efficient structural abstract methods for pruning state space when dealing with verification problems.
Xinyan Gao, Yingcai Ding, Wenbo Liu, Kaidi Zheng, Siyu Huang, Ning Zhou, Dakui Li   +6 more
doaj   +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

Efficient MCMC and posterior consistency for Bayesian inverse problems [PDF]

Many mathematical models used in science and technology often contain parameters that are not known a priori. In order to match a model to a physical phenomenon, the parameters have to be adapted on the basis of the available data.
Vollmer, Sebastian
core