Results 61 to 70 of about 37,717 (312)

Dynamic Response of Solar Power Satellite Considering Solar Radiation Pressure [PDF]

open access: yesXibei Gongye Daxue Xuebao, 2018
The attitude and structural vibration of tethered solar power satellite were studied considering solar radiation pressure. Firstly, the simplified model of tethered solar power satellite was established.

doaj   +1 more source

On First Integrals of Hamiltonian System with Holonomic Hamiltonian

open access: yes2022 IEEE 61st Conference on Decision and Control (CDC), 2022
In this study, the solution of the Hamilton-Jacobi equation (HJE) with holonomic Hamiltonian is investigated in terms of the first integrals of the corresponding Hamiltonian system. Holonomic functions are related to a specific type of partial differential equations called Pfaffian systems, whose solution space can be regarded as a finite-dimensional ...
openaire   +2 more sources

Poincaré sections of Hamiltonian systems [PDF]

open access: yesComputer Physics Communications, 1996
A set of Maplev R.3 software routines, for plotting 2D/3D projections of Poincar surfaces-of-section of Hamiltonian dynamical systems, is presented. The package consists of a plotting-command plus a set of facility-commands for a quick setup of the Hamilton equations of motion, initial conditions for numerical experiments, and for the zooming of ...
H. P. de Oliveira, E.S. Cheb-Terrab
openaire   +4 more sources

Microfluidic Synthesis of Channel‐Rich Pd‐Cu Alloy Nanodendrites for Efficient Electrocatalytic CO2 Reduction to Formate

open access: yesAdvanced Functional Materials, EarlyView.
A microfluidic system enables the rapid, room‐temperature fabrication of channel‐rich Pd‐Cu alloy nanodendrites with tunable composition, uniform morphology, and finely branched internal structures. The resulting catalysts exhibit over 90% formate selectivity across a broad potential window, along with excellent CO tolerance and enhanced long‐term ...
Xintong Huang   +7 more
wiley   +1 more source

Canonical transformations of linear Hamiltonian systems [PDF]

open access: yesE3S Web of Conferences
In this paper we consider the linear Hamiltonian systems of differential equations. We explore the normalization of a non-singular Hamiltonian matrix. We solve a system of matrix equations to find the generating function of the canonical transformation ...
Titova Tatiana
doaj   +1 more source

Siloxane‐Functionalized Silicon Phthalocyanine OTFTs: High Hole Mobility and Unexpected p‐Type Character

open access: yesAdvanced Functional Materials, EarlyView.
In this paper, the first use of a siloxane‐substituted silicon phthalocyanine (iso(Si3O)2SiPc) in OTFTs is reported. Moreover, this compound displays the highest hole mobility (exceeding 1 cm2 V−1 s−1) ever recorded for SiPc, and the GIWAXS study reveals thin films with an exceptionally uniform crystalline texture.
Nicolas Ledos   +5 more
wiley   +1 more source

Higher Order Hamiltonian Systems with Generalized Legendre Transformation

open access: yesMathematics, 2018
The aim of this paper is to report some recent results regarding second order Lagrangians corresponding to 2nd and 3rd order Euler–Lagrange forms. The associated 3rd order Hamiltonian systems are found.
Dana Smetanová
doaj   +1 more source

Molecular Simulations of Polymer‐based Drug Nanocarriers: From Physical and Structural Properties to Controlled Release

open access: yesAdvanced Healthcare Materials, EarlyView.
Polymer‐based drug delivery systems can effectively overcome the limitations of free drugs in terms of solubility, stability, and plasma half‐life, yet their development has traditionally relied on time‐consuming trial‐and‐error approaches. This review highlights recent advances in applying molecular simulation to the design of polymer‐based drug ...
Ping Gao   +4 more
wiley   +1 more source

Analytical Solution to Normal Forms of Hamiltonian Systems

open access: yesMathematical and Computational Applications, 2017
The idea of the normalisation of the Hamiltonian system is to simplify the system by transforming Hamiltonian canonically to an easy system. It is under symplectic conditions that the Hamiltonian is preserved under a specific transformation—the so-called
Ali Allahem
doaj   +1 more source

Infinitely many homoclinic solutions for perturbed second-order Hamiltonian systems with subquadratic potentials

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2020
In this paper, we consider the following perturbed second-order Hamiltonian system $$ -\ddot{u}(t)+L(t)u=\nabla W(t,u(t))+\nabla G(t,u(t)), \qquad \forall \ t\in \mathbb{R}, $$ where $W(t,u)$ is subquadratic near origin with respect to $u$; the ...
Liang Zhang, Guanwei Chen
doaj   +1 more source

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