نتایج جستجو برای: apex angle

تعداد نتایج: 141946  

2012
NENAD STOJANOVIC Nenad Stojanovic

If we construct isosceles polygon Pa k with (k − 1) sides of the same length over each side of regular polygon Pb n , with n sides, we get a new equilateral polygon P a,δ N with N = (k− 1)n sides of the same length and with different inner angles. Such polygon is called equilateral semi-regular polygon. This paper deals with metric properties of general semi-regular polygons Pa N , with given s...

Journal: :Physical review letters 2012
A Kaiser H H Wensink H Löwen

In many applications, it is important to catch collections of autonomously navigating microbes and man-made microswimmers in a controlled way. Using computer simulation of a two-dimensional system of self-propelled rods we show that a static chevron-shaped wall represents an excellent trapping device for self-motile particles. Its catching efficiency can be controlled by varying the apex angle ...

2013
Hsun-Feng Hsu Wan-Ru Huang Ting-Hsuan Chen Hwang-Yuan Wu Chun-An Chen

This work develops a method for growing Ni-silicide/Si heterostructured nanowire arrays by glancing angle Ni deposition and solid state reaction on ordered Si nanowire arrays. Samples of ordered Si nanowire arrays were fabricated by nanosphere lithography and metal-induced catalytic etching. Glancing angle Ni deposition deposited Ni only on the top of Si nanowires. When the annealing temperatur...

Journal: :Comput. Geom. 2014
Luis Barba Prosenjit Bose Jean-Lou De Carufel Mirela Damian Rolf Fagerberg André van Renssen Perouz Taslakian Sander Verdonschot

In this paper, we introduce a variation of the wellstudied Yao graphs. Given a set of points S ⊂ R and an angle 0 < θ ≤ 2π, we define the continuous Yao graph cY (θ) with vertex set S and angle θ as follows. For each p, q ∈ S, we add an edge from p to q in cY (θ) if there exists a cone with apex p and aperture θ such that q is the closest point to p inside this cone. We study the spanning ratio...

Journal: :Circulation. Cardiovascular imaging 2013
Meryl S Cohen Anusha Jegatheeswaran Jeanne M Baffa David B Gremmels David M Overman Christopher A Caldarone Brian W McCrindle Luc Mertens

BACKGROUND Definition and management of right dominant unbalanced atrioventricular septal defect (AVSD) remains challenging because unbalance entails a spectrum of left heart hypoplasia. Previous work has highlighted atrioventricular valve (AVV) index as a reasonable defining echocardiographic measure. We sought to assess which additional echocardiographic features might provide further charact...

Journal: :Optics letters 2010
Chaolong Song Nam-Trung Nguyen Anand Krishna Asundi Say-Hwa Tan

The integration of optical components into microfluidic systems has the potential to reduce the amount of bulky external devices and thus reduce the cost. However, one of the challenges of this concept is the accurate alignment of the optical path among multiple optical components inside a chip. We propose a tunable micro-optofluidic prism based on the liquid-core liquid-cladding structure form...

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B 2011

Journal: :Archives of ophthalmology 2007
Syril K Dorairaj Celso Tello Jeffrey M Liebmann Robert Ritch

OBJECTIVE To quantitatively investigate the ultrasound biomicroscopic features of eyes with asymmetric narrowing of the iridocorneal angles. METHODS Asymmetric angles were defined as those differing by 2 or more Shaffer grades between the superior and inferior angles. We performed ultrasound biomicroscopy on 18 eyes in 18 patients. Measurements of the following were made: the angle recess are...

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