Results 61 to 70 of about 84,020 (286)

Work-loop techniques for optimising nonlinear forced oscillators

, 2022
Linear and nonlinear resonant states can be restrictive: they exist at particular discrete states in frequency and/or elasticity, under particular (e.g., simple-harmonic) waveforms. In forced oscillators, this restrictiveness is an obstacle to system design and control modulation: altering the system elasticity, or modulating the response, would both ...
Pons, Arion, Beatus, Tsevi
openaire   +2 more sources

Interannual variability of the Tropical Atlantic independent of and associated with ENSO: Part II. The South Tropical Atlantic [PDF]

, 2006
Two dominant ocean-atmosphere modes of variability on interannual timescales were defined in Part I of this work, namely, the North Tropical Atlantic (NTA) and South Tropical Atlantic (STA) modes.
Barreiro, Bishop, Bjerknes, CabosNarvaez, Carton, Chiang, Compo, Curtis, Darnell, Delecluse, Diaz, Dommenget, Enfield, Fairall, Florenchie, Giannini, Gupta, Handoh, Handoh, Hirst, Hirst, Horel, Hoskins, Huang, Huang, Huang, Huang, Joyce, Kistler, Klein, Latif, Liebmann, Liu, Mariotti, Matthews, Mo, Mo, Philander, Pozo-Vazquez, Ruiz-Barradas, Ruiz-Barradas, Saravanan, Servain, Spencer, Sterl, Sutton, Tourre, Tseng, Wu, Wu, Xie, Xie, Xie, Zebiak   +53 more
core   +1 more source

Prospects of Electric Field Control in Perpendicular Magnetic Tunnel Junctions and Emerging 2D Spintronics for Ultralow Energy Memory and Logic Devices

Advanced Functional Materials, EarlyView.
Electric control of magnetic tunnel junctions offers a path to drastically reduce the energy requirements of the device. Electric field control of magnetization can be realized in a multitude of ways. These mechanisms can be integrated into existing spintronic devices to further reduce the operational energy.
Will Echtenkamp, Brahmdutta Dixit, Yifei Yang, Deyuan Lyu, Thomas Peterson, Qi Jia, Yu‐Chia Chen, Jian‐Ping Wang   +7 more
wiley   +1 more source

Generalized Variational Oscillation Principles for Second-Order Differential Equations with Mixed-Nonlinearities

Discrete Dynamics in Nature and Society, 2012
Using generalized variational principle and Riccati technique, new oscillation criteria are established for forced second-order differential equation with mixed nonlinearities, which improve and generalize some recent papers in the literature.
Jing Shao, Fanwei Meng, Xinqin Pang
doaj   +1 more source

Non-Destructive Identification of Cold and Extremely Localized Single Molecular Ions

, 2004
A simple and non-destructive method for identification of a single molecular ion sympathetically cooled by a single laser cooled atomic ion in a linear Paul trap is demonstrated. The technique is based on a precise determination of the molecular ion mass
A. Mortensen, D. Gerlich, J. L. Sørensen, M. Drewsen, M. Drewsen, M. Drewsen, M. Shapiro, N. Kjaergaard, P. Staanum, R. Martinussen, S. L. Anderson, T. Brixner   +11 more
core   +1 more source

Kinetic Insights into Precursor‐Assisted Soft Sphere Close Packing Revealed by In Situ GISAXS with Implications for Gas Sensing

Advanced Functional Materials, EarlyView.
The versatile precursor‐assisted soft sphere close packing during slot‐die coating is investigated with in situ X‐ray scattering. The soft crystallization pathways towards a close packing involve multistep structural transitions such as surface nucleation, in‐plane, and out‐of‐plane crystallization.
Guangjiu Pan, Wenhe Xie, Suzhe Liang, Ting Tian, Shanshan Yin, Lixing Li, Altantulga Buyan‐Arivjikh, Jinsheng Zhang, Thomas Baier, Zhuijun Xu, Matthias Schwartzkopf, Sarathlal Koyiloth Vayalil, Stephan V. Roth, Yonghui Deng, Peter Müller‐Buschbaum   +14 more
wiley   +1 more source

Generalized Variational Principles on Oscillation for Nonlinear Nonhomogeneous Differential Equations

Abstract and Applied Analysis, 2011
Using the generalized variational principle and the Riccati technique, new oscillation criteria are established for the forced second-order nonlinear differential equation, which improves and generalizes some of the new results in literature.
Jing Shao, Fanwei Meng
doaj   +1 more source

An Analytical Study of Ozone Feedbacks on Kelvin and Rossby–Gravity Waves: Effects on the QBO [PDF]

, 1998
An equatorial beta-plane model of the middle atmosphere is used to analytically examine the effects of radiative cooling and ozone heating on the spatial and temporal evolution of the quasi-biennial oscillation (QBO).
Cordero, Eugene, Echols, Robert S., Nathan, Terrence R.   +2 more
core   +2 more sources

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

Within-breath analysis of respiratory mechanics in asthmatic patients by forced oscillation

Clinics, 2009
INTRODUCTION: The within-breath analysis of respiratory mechanics by the monofrequency Forced Oscillation Technique (mFOT) is of great interest in both physiopathology studies and the diagnosis of respiratory diseases.
Juliana Veiga, Agnaldo José Lopes, José Manoel Jansen, Pedro Lopes de Melo   +3 more
doaj   +1 more source