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Good accessibility is an important guarantee for maintenance operation tasks. Aiming at overcoming the deficiency that the degree of being accessible for points in space cannot be described by current indices related to accessibility and the problem that accessibility design and analysis cannot be conducted conveniently, for the first time, the paper proposes a modeling method for continuous quantization...
The ionic permeation of a biological ion channel is a multi-particle, non-equilibrium, stochastic process. Brownian dynamics simulations for a simple electrostatic model of the calcium channel reveal regular structure in the conductance and selectivity as functions of the negative fixed charge Qf on the protein wall at the selectivity filter. This structure consists of distinct high conductance regions...
This paper presents an improved 3D dynamic model based on mode shape functions for biomimetic continuum robotic arms intended for underwater operation. It is an extension to the dynamic model proposed in the author's previous work to incorporate angular moments and hydrodynamic forces such as buoyancy, lift, and drag. The proposed model is based on an accurate kinematic model and gives an enhanced...
In this paper, with interfloor traffic condition, the optimal zoning elevator group control strategy is studied aiming at energy saving. First, the energy consumption data of an elevator is analyzed and the energy consumption model is constructed. Then, the optimal zoning strategy for energy saving is designed and solved by genetic algorithm. In this algorithm, the energy conservation and the variance...
In this paper, we present a port-Hamiltonian model of a multi-fingered robotic hand, with soft-pads, while grasping and manipulating an object. The algebraic constraints of the interconnected systems are represented by a geometric object, called Dirac structure. This provides a powerful way to describe the non-contact to contact transition and contact viscoelasticity, by using the concepts of energy...
In recent years, a number of studies have considered the evolvement of network organization; however, the primary focus on the complexity of network organization evolvement has not been discussed widely. This paper describes a potential energy model of organization evolution, which provides a research platform for the establishment of the evolution trajectories of network organization. Results from...
Molecular dynamics simulation computes the motions of individual molecules in models of solids, liquids and gases, which describe how positions, velocities, and orientations change with time. In present study an attempt has been made for mathematical modeling and dynamical study of a diatomic molecule. Here we consider a fluid system (water) for a diatomic molecule O2 and then we modeled it and simulated...
Regenerative braking system is the characteristic system of electric and hybrid electric vehicle. The system can restore the kinetic energy and potential energy, used during start and accelerating, into battery through electrical machine. A control strategy witch is based on ideal braking force distribution is proposed. Front wheel and rear wheel can make full use of ground adhesion condition with...
We use MD simulations to study the interaction between surface-immobilized biotin and streptavidin. We developed two general models with 10 kcal/mol constraints applied to the whole biotin residue, or alternatively, to one C-terminal oxygen atom of biotin. We evaluated the effect of the constraints on the temperature and energy fluctuations along the simulations. For both the restrained and unrestrained...
This paper makes researches on knowledge transfer among enterprises on the supply chain nodes affecting supply chain performance, and constructs a knowledge transfer model of supply chain, containing knowledge, knowledge potential energy, intellectual capital and supply chain performance as the main affecting factors. Hypothesis testing on the theoretical model is made by normative empirical analysis,...
We introduce a model of self-organizing systems inspired by biological and Physics metaphors. The motivation for the development of this model is twofold,it enables us to identify critical properties of a system and to understand the important metrics characterizing its qualitative and the quantitative behavior. It also enables us to develop a methodology to investigate these systems and to carry...
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