Results 71 to 80 of about 12,502,488 (286)

A study of molybdenum addition on W-Ni-Fe based heavy alloys sintered with spark plasma sintering [PDF]

open access: yesBulletin of the Polish Academy of Sciences: Technical Sciences, 2019
Tungsten heavy alloys comprising tungsten, nickel and ferrous were modified, where molybdenum was added in varying weight proportions keeping the ratio of Ni: Fe (8:2) constant.
B.S.L. Prasad, R. Annamalai
doaj   +1 more source

Engineering Local Polar Frustration in Lead‐Free Dielectric Ceramics for Ultrahigh Normalized Energy Storage Performance

open access: yesAdvanced Functional Materials, EarlyView.
Local polar frustration is engineered to stabilize an ergodic relaxer through nanoscale multiphase coexistence, suppressing long‐range ferroelectric order while preserving high polarization. This strategy delivers ultrahigh low‐field normalized energy density (Wa >0.020 mC cm−2), exceptional thermal stability, and a transferable design principle for ...
Hareem Zubairi   +9 more
wiley   +1 more source

Design and Manufacturing of The Device of Immediate Three Dimensional Report to Measure The mechanical force of The hook Punch [PDF]

open access: yesAssiut Journal of Sport Science and Arts, 2016
Is it possible to measure the three elements of the mechanical power of the hook punch in the light of the engineered design? Is it possible to capture the electric signal wirelessly and convert it to legible digital values?
KhaledAbd- Elazeem
doaj   +1 more source

Covalent Functionalization of 2D Semiconductors: A Roadmap to Advanced Electronic Devices

open access: yesAdvanced Functional Materials, EarlyView.
This Review presents recent advances in the covalent functionalization strategies for two‐dimensional semiconductors and their implementation in modern technologies. Layered materials are modified through diverse molecular chemistries (e.g., thiols, diazonium salts, alkyl halides, and electron‐deficient species) to tailor their surface properties ...
Ramiro Quirós‐Ovies   +2 more
wiley   +1 more source

Second-order dynamical system to solve the sum of monotone operators via the KM algorithm

open access: yesAlexandria Engineering Journal
Dynamical systems serve as powerful tools for studying optimization and fixed-point algorithms. Motivated by this perspective, we take a problem to find solution of the form 0∈A(y)+B(y) in Hilbert spaces using a dynamical system approach based on the ...
Yang Cao   +4 more
doaj   +1 more source

Atom–Cluster Synergy in Scalable Fe–Ru Dual‐Site Architectures Accelerates Alkaline Hydrogen Evolution

open access: yesAdvanced Materials, EarlyView.
A mechanochemically synthesized dual‐site electrocatalyst (RuNC@Fe1NC) accelerates alkaline hydrogen evolution via atomic‐level spatial decoupling. Oxophilic Fe single atoms effectively dissociate water, while adjacent Ru nanoclusters rapidly recombine hydrogen.
Jae‐Hoon Baek   +9 more
wiley   +1 more source

Controlled Growth of Boron Nitride in Various Phases

open access: yesAdvanced Materials Interfaces, EarlyView.
Phase‐selective boron nitride growth is presented as a unified materials‐design problem across hexagonal, rhombohedral, cubic, and amorphous phases. By linking synthesis routes to thermodynamic stability, kinetic accessibility, surface diffusion, interfacial templating, and energetic activation, this review clarifies how bonding and stacking are ...
Pan Wu   +6 more
wiley   +1 more source

Impact Sound Reduction Performances of Additional Floor Mats for the Retrofitting of an Existing Apartment Building in Accordance with Test-Bed Conditions

open access: yesApplied Sciences
Floor mats are commonly used to improve the impact sound performance of existing homes, but actual impact sound reductions do not consistently appear, as they depend on the test-bed conditions used to determine impact sound performance.
Yong-Hee Kim   +2 more
doaj   +1 more source

Research on Boundary Layer Effect in Fractured Reservoirs Based on Pore-Scale Models

open access: yesFrontiers in Earth Science, 2021
It is of great significance to study the seepage characteristics of heavy oil reservoirs, which are conducive to the efficient development of resources.
Deqiang Wang   +5 more
doaj   +1 more source

Convergence of the Stochastic Heavy Ball Method With Approximate Gradients and/or Block Updating

open access: yes, 2023
37 pages, 4 ...
Tadipatri, Uday Kiran Reddy   +1 more
openaire   +2 more sources

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