Results 1 to 10 of about 1,458 (112)

Mathematical study of bio-fibre comminution process as first step towards valorization of post-harvest waste materials

open access: yesCleaner Materials, 2022
The objective of this study was to analyse bio-fibre comminution energy and particle size classification as the first step towards converting cellulose based agricultural residues into environment-friendly composite products. Bio-fibres used in the study
Christian Emeka Okafor   +6 more
doaj   +1 more source

Viscoelasticity of Rubber Springs Affects Vibration Characteristics of a Flip-Flow Screen With the High G Value

open access: yesIEEE Access, 2020
With the high G value of vibration, outstanding sieving behaviors of a flip-flow screen are more likely to appear, but structural damages are aggravated under the high amplitude vibration.
Jian Tang   +3 more
doaj   +1 more source

Sieving nonlinear internal waves through path prediction [PDF]

open access: yesInternational Journal of Remote Sensing, 2008
Nonlinear internal waves (NLIWs) have been studied as unusual phenomena in the ocean for several decades. As the quality, quantity and variety of satellite images have increased, NLIWs have been found as a ubiquitous phenomenon over the continental shelf.
Chao, Y. -H.   +5 more
openaire   +2 more sources

Development and Verification of the Diagnostic Model of the Sieving Screen

open access: yesShock and Vibration, 2020
The minerals processing enterprises are widely using vibrating machines to separate different fractions of materials. Sieving efficiency is greatly dependent on particle trajectories, or orbit, of periodical motion over the sieving decks.
Pavlo Krot   +6 more
doaj   +1 more source

Nonlinear autoregressive sieve bootstrap based on extreme learning machines

open access: yesMathematical Biosciences and Engineering, 2020
The aim of the paper is to propose and discuss a sieve bootstrap scheme based on Extreme Learning Machines for non linear time series. The procedure is fully nonparametric in its spirit and retains the conceptual simplicity of the residual bootstrap.
LA ROCCA, Michele, PERNA, Cira
openaire   +3 more sources

State-Recovery Attacks on Modified Ketje Jr

open access: yesIACR Transactions on Symmetric Cryptology, 2018
In this article we study the security of the authenticated encryption algorithm Ketje against divide-and-conquer attacks. Ketje is a third-round candidate in the ongoing CAESAR competition, which shares most of its design principles with the SHA-3 hash ...
Thomas Fuhr   +2 more
doaj   +1 more source

Semiconductor sieves as nonlinear optical materials

open access: yesApplied Physics Letters, 2000
Electrochemical etching techniques were used to fabricate semiconductor sieves of gallium phosphide, i.e., two-dimensionally nanostructured membranes exhibiting an enhanced optical second harmonic generation (SHG) in comparison with the bulk material. The SHG rotational and fundamental polarization dependencies studied under sample excitation by a 1064-
Tiginyanu, I. M.   +5 more
openaire   +2 more sources

ON NONLINEAR POLYNOMIAL SELECTION AND GEOMETRIC PROGRESSION (MOD N) FOR NUMBER FIELD SIEVE [PDF]

open access: yesBulletin of the Korean Mathematical Society, 2016
The general number field sieve (GNFS) is asymptotically the fastest known factoring algorithm. One of the most important steps of GNFS is to select a good polynomial pair. A standard way of polynomial selection (being used in factoring RSA challenge numbers) is to select a nonlinear polynomial for algebraic sieving and a linear polynomial for ra ...
Namhun Koo, Gooc Hwa Jo, Soonhak Kwon
openaire   +2 more sources

Particle breakage of soil-rock aggregate based on large-scale direct shear tests

open access: yesYantu gongcheng xuebao, 2017
In the direct shear tests on soil-rock aggregate (SRA), particle breakage occurs in micro vision, which will influence its macro mechanical properties. On this basis, the laboratory large-scale direct shear tests and sieving analysis tests are conducted ...
LIU Xin-rong1, 2, TU Yi-liang 1, 2, WANG Peng 1, 2, ZHONG Zu-liang 1, 2, TANG Wen-bin 3, DU Li-bing 1, 2
doaj   +1 more source

An Iterative Information-Theoretic Approach to the Detection of Structures in Complex Systems

open access: yesComplexity, 2018
Systems that exhibit complex behaviours often contain inherent dynamical structures which evolve over time in a coordinated way. In this paper, we present a methodology based on the Relevance Index method aimed at revealing the dynamical structures ...
Marco Villani   +7 more
doaj   +1 more source

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