Results 21 to 30 of about 44,286,818 (153)

Oscillations of a Beam on a Non-Linear Elastic Foundation under Periodic Loads

Shock and Vibration, 2006
The complexity of the response of a beam resting on a nonlinear elastic foundation makes the design of this structural element rather challenging.
Donald Mark Santee, Paulo Batista Gonçalves   +1 more
doaj   +1 more source

Poincaré-Melnikov-Arnold Method for Twist Maps [PDF]

, 1999
The Poincar\'e--Melnikov--Arnold method is the standard tool for detecting splitting of invariant manifolds for systems of ordinary differential equations close to ``integrable'' ones with associated separatrices. This method gives rise to an integral (continuous sum) known as the Melnikov function (or Melnikov integral).
Delshams Valdés, Amadeu, Ramírez Ros, Rafael   +1 more
openaire   +2 more sources

Melnikov's method for rigid bodies subject to small perturbation torques

Archive of applied mechanics (1991), 1996
SummaryIn this paper, the global motion of rigid bodies subjected to small perturbation torques, either conservative or dissipative, is investigated by means of Melnikov's method.
B. Tabarrok, X. Tong
semanticscholar   +1 more source

Prospects for Extrapolation of G.P. Melnikov’s Systemology Theory to Texts Studies

RUDN Journal of Language Studies, Semiotics and Semantics
The systems approach to text research has developed independently of the achievements of systems linguistics and the theory of large systems. How effective and in what respect can systemology be if it is extrapolated to the study of texts?
Olga I. Valentinova
doaj   +1 more source

One More Thing on the Subject: Prediction of Chaos in a Josephson Junction with Quadratic Damping by the Melnikov Technique, Possible Probabilistic Control over Oscillations

Applied Sciences
Many authors analyze the prediction of chaos in a Josephson junction with quadratic damping by the Melnikov technique. Due to the lack of an explicit presentation of the Melnikov integral, the researchers apply numerical methods and illustrative examples
Nikolay Kyurkchiev, Tsvetelin Zaevski, Anton Iliev, Vesselin Kyurkchiev, Asen Rahnev   +4 more
doaj   +1 more source

THE EFFECT OF USING FOUR SQUARE METHOD IN WRITING NOTICE TEXT AT THE GRADE VIII OF SMP NEGERI 11 PADANGSIDIMPUAN [PDF]

, 2019
The study was conducted at the Grade VIII of SMP Negeri 11 Padangsidimpuan. The aims of this research was to find out if there was a significant Effect of Using four square method on Students’ Writing notice t text at the Grade VIII of SMP Negeri 11 ...
Siagian, Abdul Rahman
core   +1 more source

Offspring performance does not explain oviposition preference in the leafminer Stigmella sorbi (Lepidoptera: Nepticulidae): a tri‐trophic perspective

Insect Science, EarlyView.
We studied oviposition site selection in a leaf‐mining moth (Stigmella sorbi) on rowan trees (Sorbus aucuparia) in northwestern Russia, assessing larval performance across different shoot types, leaf positions, and leaflets. Larval survival was highest on long vegetative shoots, yet females showed no preference for these optimal sites.
Mikhail V. Kozlov, Vitali Zverev
wiley   +1 more source

Temperature elevation broadens the dietary niche of an insect herbivore

Ecological Entomology, EarlyView.
The realised dietary niche in Chrysomela lapponica was the narrowest at 10°C, whereas higher temperatures (15–25°C) broadened the dietary niche by increasing preference for and survival on suboptimal host plants. Elevated temperature broadened the realised dietary niche through both direct effects on beetles and indirect effects mediated by temperature‐
Elena L. Zvereva, Vitali Zverev, Mikhail V. Kozlov   +2 more
wiley   +1 more source

Poincaré - Melnikov - Arnold method for analytic planar maps [PDF]

Nonlinearity, 1996
The Poincare-Melnikov-Arnold method for planar maps gives rise to a Melnikov function defined by an infinite and (a priori) analytically uncomputable sum. Under an assumption of meromorphicity, residues theory can be applied to provide an equivalent finite sum. Moreover, the Melnikov function turns out to be an elliptic function and a general criterion
Delshams Valdés, Amadeu, Ramírez Ros, Rafael   +1 more
openaire   +3 more sources

Plant cis‐regulatory grammar: Decoding the multidimensional code of transcriptional regulation for programmable crop engineering

Journal of Integrative Plant Biology, EarlyView.
This review decodes the grammar of plant cis‐regulatory elements, revealing that their function emerges from sequence, chromatin accessibility, 3D topology, and cell type context. It highlights how single‐cell omics, CRISPR dissection, and AI‐driven design converge to enable predictive engineering and crop improvement. ABSTRACT Cis‐regulatory elements (
Libin Zhang, Maoteng Li
wiley   +1 more source