Results 31 to 40 of about 12,798,996 (387)

Flexible Methyl Cellulose/Polyaniline/Silver Composite Films with Enhanced Linear and Nonlinear Optical Properties

open access: yesPolymers, 2021
In order to potentiate implementations in optical energy applications, flexible polymer composite films comprising methyl cellulose (MC), polyaniline (PANI) and silver nanoparticles (AgNPs) were successfully fabricated through a cast preparation method ...
A. Atta   +3 more
semanticscholar   +1 more source

Experimental Investigation of Geosynthetic-Reinforced Pile-Supported Composite Foundations under Cyclic Loading

open access: yesAdvances in Civil Engineering, 2020
A series of model tests were conducted in this study to investigate the deformation characteristics of geosynthetic-reinforced pile-supported (GRPS) composite foundations under cyclic loading. The effects of the applied load, the number of geogrid layers,
Kaifu Liu   +4 more
doaj   +1 more source

Composite Material Recycling Technology—State-of-the-Art and Sustainable Development for the 2020s

open access: yes, 2021
Recently, significant events took place that added immensely to the sociotechnical pressure for developing sustainable composite recycling solutions, namely (1) a ban on composite landfilling in Germany in 2009, (2) the first major wave of composite wind
A. Krauklis   +3 more
semanticscholar   +1 more source

A Note on the Compositeness of Numbers [PDF]

open access: yesProceedings of the American Mathematical Society, 1957
The "compositeness" of the number n = pclpa2 a * * pam iS defined by Q(n) =a1+a2?+ +Ofa,. If the integers be partitioned into two classes Eo and E1 according to whether Q(n) =0, 1 (mod 2), and Eo(x), El(x) be the corresponding counting functions, it follows that Ei(x) = (x/2) +error.
openaire   +1 more source

Highly Composite Numbers [PDF]

open access: yesProceedings of the London Mathematical Society, 1915
n ...
openaire   +2 more sources

The changing rules of the composite roughness in drainage pipelines with sediments

open access: yesWater Supply, 2023
The deposition of sediments with different roughness increases uncertainty in the prediction of effective Manning's n (also known as composite roughness).
Bin Sun   +4 more
doaj   +1 more source

Experimental and Numerical Study on the Strength of Repaired Steel Pipes with Composite Patches under Internal Pressure [PDF]

open access: yesMechanics of Advanced Composite Structures, 2023
Considering the old methods of maintenance and repair of oil and gas pipelines such as welding or replacing a part of the damaged pipeline which include high costs and spending a lot of time, the important usage of novel methods with lower costs such as ...
Azita Shafaee Fallah   +2 more
doaj   +1 more source

Adaptive Speaker Recognition Based on Hidden Markov Model Parameter Optimization

open access: yesIEEE Access, 2020
The Hidden Markov Model (HMM) is a widely used method for speaker recognition. During its training, the composite order of the measurement probability matrix and the number of re-evaluations of the initial model affect the speed and accuracy of a ...
Yangjie Wei
doaj   +1 more source

Preparation of ZnO/Brucite Functional Composite Powder by the Mechanochemical Method

open access: yesFrontiers in Materials, 2021
In this experiment, ZnO/brucite composite powder was prepared through the mechanochemical method; further, the properties, particle morphology, and structure of the composite powder were characterized. The results show that mechanical grinding action can
Huan Shuai   +4 more
doaj   +1 more source

A Supersymmetric Composite Model of Quarks and Leptons [PDF]

open access: yes, 1996
We present a class of supersymmetric models with complete generations of composite quarks and leptons using recent non-perturbative results for the low energy dynamics of supersymmetric QCD. In these models, the quarks arise as composite "mesons" and the
Affleck   +16 more
core   +2 more sources

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