Results 51 to 60 of about 3,382,528 (291)
The inverse resonance problem for perturbations of algebro-geometric potentials
, 2003 We prove that a compactly supported perturbation of a rational or simply periodic algebro-geometric potential of the one-dimensional Schr\"odinger equation on the half line is uniquely determined by the location of its Dirichlet eigenvalues and ...
B M Brown +14 more
core +1 more source
Theory of fishnet negative-index optical metamaterials [PDF]
, 2011 We theoretically study fishnet metamaterials at optical frequencies. In contrast to earlier works, we provide a microscopic description by tracking the transversal and longitudinal flows of energy through the fishnet mesh composed of intersecting ...
Lalanne, P. +3 more
core +3 more sources
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
Free Vibration of Simply Supported Beam on Elastic Foundations
مجلة النهرين للعلوم الهندسية, 2017 Fourier series and finite element analysis are utilized to obtain the solution of simply supported beams resting on elastic foundations with different loadings in order to arrive at a free vibration.
Adel A. Al-Azzawi
doaj
Hybrid Test on a Simply Supported Bridge With High-Damping Rubber Bearings
Frontiers in Built Environment, 2020 In this study, hybrid simulation techniques are used to test earthquake excitation on a supported bridge with High-damping rubber (HDR) bearings, which are widely used in girder bridges.
Chengyu Yang +3 more
doaj +1 more source
Dynamic analysis of a simply supported beam with crack [PDF]
, 2011 The crack present in the structure changes the physical nature of it as well as changes the dynamic response towards the vibration. For the analysis the depth and location of the crack are important parameters which change the response.
Sahu, Ashish Kumar
core
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source
Standards guidelines for human comfort tested on timber footbridges
Semina: Ciências Exatas e Tecnológicas, 2011 Activities such as walking, running and jumping can produce undesirable dynamic excitations, which are a phenomenon that occurs due to pedestrian-induced dynamic forces whenever a footbridge features a natural frequency within stepping frequency ranges ...
Pedro Gutemberg de Alcântara Segundinho +2 more
doaj
Theoretical modal analysis of freely and simply supported RC slabs [PDF]
, 2014 This paper focuses on the dynamic behavior of reinforced concrete (RC) slabs. Therefore, the theoretical modal analysis was performed using two different types of boundary conditions. Modal analysis method is the most important dynamic analyses.
Ahmed, MS, Mohammad, FA
core
Exact 3D solution for static and damped harmonic response of simply supported general laminates
, 2014 The state-space method is adapted to obtain three dimensional exact solutions for the static and damped dynamic behaviors of simply supported general laminates. The state-space method is written in a general form that permits to handle both cross-ply and
Loredo, Alexandre
core +4 more sources