نتایج جستجو برای: electrostatic force

تعداد نتایج: 210368  

2017
Franck Bocquet Laurent Nony Christian Loppacher

We discuss the influence of short-range electrostatic forces, so called dipolar forces, between the tip of an atomic force microscope (AFM) and a surface carrying charged adatoms. Dipolar forces are of microscopic character and have their origin in the polarizability of the foremost atoms on tip and surface. In most experiments performed by non-contact AFM, other forces such as binding forces d...

Journal: :Microelectronics Reliability 2002
O. Jeandupeux V. Marsico A. Acovic P. Fazan H. Brune K. Kern

Scanning capacitance microscopy and electrostatic force microscopy have been used to characterize commercial semiconductor devices at various stages of the fabrication process. These methods, combined with conventional atomic force microscopy, allow to visualize qualitatively the oxide thickness, the nature of dopants and the exact position of implanted areas. 2002 Elsevier Science Ltd. All rig...

Journal: :Journal of physics communications 2022

Abstract Electrostatic Force Microscopy has been proven to be a precise and versatile tool perform quantitative measurements of the dielectric constant thin film domains in nanometer range. However, it is difficult measure non-planar nanostructures because topographic crosstalk significantly contributes measured signal. This due distance changes between tip substrate measuring surface structure...

2008
T. A. Kowalewski S. Barral

A fast discrete model for the simulations of thin charged jets produced during the electrospinning process is derived, based on an efficient implementation of the boundary element method for the computation of electrostatic interactions of the jet with itself and with the electrodes. Short-range electrostatic forces are evaluated with slender-body analytical approximations, whereas a hierarchic...

2002
Marcey L Waters

A thorough knowledge of noncovalent interactions is crucial to the understanding of biological complexity. One of the less well understood but significant weak interactions in nature is the aromatic interaction. Recent studies have provided new insight into the driving force, stability and selectivity of these interactions. The contribution of solvophobic and electrostatic interactions have bee...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده مهندسی نساجی 1387

تولید الکتریسیته ساکن از طریق مالش بر روی منسوجات مشکلات زیادی را به دنبال دارد. در کفپوشها افزایش میز ان جذب گرد و خاک و آلودگی در اثر تولید الکتریسیته ساکن مشکلات خاصی را به همراه دارد. گرد و خاک و مواد حساسیت زای موجود در لابلای فرش می تواند سبب بروز مشکلات و بیماریهای تنفسی نظیر آسم شود، بویژه در مورد کودکان که در ماههای اولیه زندگی تماس مستقیم و مداوم با پوششهای کف دارند. کشور ما که مهد ی...

Journal: :PMC Biophysics 2008
Kemper Talley Carmen Ng Michael Shoppell Petras Kundrotas Emil Alexov

Calculations of electrostatic properties of protein-protein complexes are usually done within framework of a model with a certain set of parameters. In this paper we present a comprehensive statistical analysis of the sensitivity of the electrostatic component of binding free energy (DeltaDeltaGel) with respect with different force fields (Charmm, Amber, and OPLS), different values of the inter...

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