نتایج جستجو برای: plane shape

تعداد نتایج: 303175  

2003
N. C. PERKINS

The stability of a translating cable which stands in the shape of an arch between two supports is investigated. Asymptotic solutions for free in-plane and out-of-plane cable vibrations are derived under the assumption of small arch height. Without translation speed, the cable arch collapses under compressional loading. As translation speed is increased, however, the cable arch becomes tensioned...

1997
Du Q. Huynh

We present in this paper a novel calibration method that uses cross ratio t o compute world points falling onto any given light stripe plane of a structured light system. We show that, by using 4 known non-coplanar sets of 3 collinear world points, the direct 4 x 3 imageto-world transformation matrix for each light stripe plane can also be recovered from plane-to-plane homography. Preliminary e...

2013
Rosario Martínez-Herrero Pedro M. Mejías Ignasi Juvells Artur Carnicer

The contribution of the propagating and the evanescent waves associated with freely propagating nonparaxial light fields whose transverse component is azimuthally polarized at some plane is investigated. Analytic expressions are derived for describing both the spatial shape and the relative weight of the propagating and the evanescent components integrated over the transverse plane. The analysi...

Journal: :Dental materials journal 2007
Makiha Hioki Akikazu Shin-Ya Rizako Nakahara Pekka K Vallittu Yuji Nakasone Akiyoshi Shin-Ya

The objective of this study was to evaluate the influences of enamel shape and bracket base configuration on shear bond strength from a biomechanical point of view. To this end, shear bond test and stress analysis using finite element method (FEM) were performed. Results obtained from both tests were then comprehensively investigated. Maxillary incisors were prepared for plane specimens, while ...

2011
Md. Jahangir Alam Hiromitsu Hama

In this paper an efficient algorithm is proposed for person identification based on the analysis of 2D images of a designed mask projected onto the person's face in a cooperative environment. The cooperative environment is essential for the accomplishment of the images under a certain condition. The importance of the designed mask is for avoiding the complexity of feature selection from the fac...

2008
R. Mattiello

A phase space coalescence description based on the Wigner-function method for cluster formation in relativistic nucleus-nucleus collisions is presented. The momentum distributions of nuclear clusters d,t and He are predicted for central Au(11.6AGeV)Au and Si(14.6AGeV)Si reactions in the framework of the RQMD transport approach. Transverse expansion leads to a strong shoulderarm shape and differ...

1998
Charles E. Augarde

Straight beam ®nite elements with greater than two nodes are used for edge sti€ening in plane stress analyses and elsewhere. It is often necessary to match the number of nodes on the edge sti€ener to the number on a whole plane stress element side. Beam elements employ shape functions which are recognised to be level one Hermitian polynomials. An alternative to the commonly adopted method for d...

2014
Xiaoping Yang Haibin Su

Using the generalized gradient approximation augmented with maximally localized Wannier functions analysis, we present the formation of cuprate-like electronic structures in Ag(II)F2-related superlattices resulted from the confinement together with structural chemical modification. The out-of-plane electronic reconstruction leads to electron doping of AgF2 plane and gradually destablizes the an...

Journal: :Physical chemistry chemical physics : PCCP 2014
Athanasios G Arvanitidis Truong Ba Tai Minh Tho Nguyen Arnout Ceulemans

This article presents the use of free particle models to obtain quantum rules for planar boron clusters, with nuclearities in the range from seven to twenty. The information obtained from the models is being compared with electronic structure calculations based on the DFT method. Separate rules for in-plane and out-of-plane bonding are derived. In-plane bonding is precise on the cluster boundar...

2008
Habib G. Khosroshahi Yogesh Wadadekar Ajit Kembhavi Bahram Mobasher

We report the existence of a single plane in the space of global photometric parameters describing elliptical galaxies and the bulges of early type spiral galaxies. The three parameters which define the plane are obtained by fitting the Sersic form to the brightness distribution obtained from near-infrared K band images. We find, from the range covered by their shape parameters, that the ellipt...

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