scholarly journals Research on Multinozzle Near-Field Electrospinning Patterned Deposition

2015 ◽  
Vol 2015 ◽  
pp. 1-8 ◽  
Author(s):  
Han Wang ◽  
Shenneng Huang ◽  
Feng Liang ◽  
Peixuan Wu ◽  
Minhao Li ◽  
...  
Keyword(s):  
Near Field ◽  
Theoretical Derivation ◽  
Coulomb’S Law ◽  
Increase Productivity ◽  
Working Distance ◽  
Coulomb's Law ◽  
Deposition Distance

Multinozzle electrospinning systems are designed to increase productivity, while near-field electrospinning (NFES) systems are designed to deposit solid nanofibers in a direct, continuous, and controllable manner. In this paper, several multinozzle NFES setups are tested. The experiment reveals that the deposition distance becomes larger when working distance and needle spacing increase, and the influence of voltage is relatively weaker. The deposition of double nozzle NFES has been studied with Coulomb’s law and theoretical derivation has been verified by the experimental conclusion. The experiment result and theoretical derivation are helpful to get different distance of direct-written fibers by adjusting working distance or needle spacing to change distance of fibers largely and adjusting voltage to change distance slowly. Through these efforts, it is convenient to adjust the distance of straight fibers in multinozzle system.

A piezoelectric contact problem with slip dependent friction and damage

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Abderrezak Kasri
Keyword(s):  
Weak Solution ◽  
Contact Problem ◽  
Dry Friction ◽  
Existence And Uniqueness ◽  
Variational Formulation ◽  
Normal Compliance ◽  
Electrically Conductive ◽  
Coulomb’S Law ◽  
Electrical Condition ◽  
Coulomb's Law

Abstract The aim of this paper is to study a quasistatic contact problem between an electro-elastic viscoplastic body with damage and an electrically conductive foundation. The contact is modelled with an electrical condition, normal compliance and the associated version of Coulomb’s law of dry friction in which slip dependent friction is included. We derive a variational formulation for the model and, under a smallness assumption, we prove the existence and uniqueness of a weak solution.

scholarly journals Innovative Method of Urban Planning Management Based on the Mathematical Modelling of the Network Objects

2018 ◽  
Vol 251 ◽  
pp. 03040
Author(s):  
Dmitriy Anufriev ◽  
Olga Shikulskaya ◽  
Mikhail Shikulskiy ◽  
Alyona Naberezhnaya
Keyword(s):  
Urban Planning ◽  
Mathematical Modelling ◽  
Retail Trade ◽  
Factors Affecting ◽  
Innovative Method ◽  
Coulomb’S Law ◽  
Urban Planning Management ◽  
Coulomb's Law

When urban planning for convenience of the population and business it is necessary to place rationally objects of retail trade and service. Currently a large number of different methods are available to achievement of this purpose, but they are not universal. The most effective solutions could be achieved through the transfer of laws from one area of knowledge to another. The Coulomb’s law was used. Authors analyzed all factors affecting the incurrence of profits or losses of a retail network.

Experimental Test of Coulomb's Law

1970 ◽  
Vol 2 (3) ◽  
pp. 483-487 ◽  
Author(s):  
D. F. Bartlett ◽  
P. E. Goldhagen ◽  
E. A. Phillips
Keyword(s):  
Experimental Test ◽  
Coulomb’S Law ◽  
Coulomb's Law

Letting students discover the power, and the limits, of simple models: Coulomb’s law

2017 ◽  
Vol 55 (6) ◽  
pp. 380-381 ◽  
Author(s):  
Peter Bohacek ◽  
Matthew Vonk ◽  
Joseph Dill ◽  
Emma Boehm
Keyword(s):  
Coulomb’S Law ◽  
Coulomb's Law ◽  
Simple Models

Urban Traffic Coulomb’s Law: A New Approach for Taxi Route Recommendation

2019 ◽  
Vol 20 (8) ◽  
pp. 3024-3037 ◽  
Author(s):  
Yongxuan Lai ◽  
Zheng Lv ◽  
Kuan-Ching Li ◽  
Minghong Liao
Keyword(s):  
Urban Traffic ◽  
New Approach ◽  
Coulomb’S Law ◽  
Route Recommendation ◽  
Coulomb's Law
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