نتایج جستجو برای: sacrificial piles

تعداد نتایج: 6072  

Journal: :Proceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine 2006
R J Bibb D Eggbeer R J Williams A Woodward

Previous studies of CAD/CAM-produced sacrificial patterns for removable partial denture frameworks have been documented but to date, no such restorations have been test-fitted to a patient. This paper provides details of the first trial fitting to a patient of an RPD framework, the sacrificial pattern of which was produced by CAD/CAM and RP technologies. A cast of the patient was scanned and th...

Journal: :Inorganic chemistry 2007
Jian-Jun Miao Li-Ping Jiang Chang Liu Jian-Min Zhu Jun-Jie Zhu

Semiconductor CdX (X=Te, Se, S) hollow structures have been successfully prepared by using Cd(OH)Cl precursors as a sacrificial template. The hollow structures can be hollow spheres or tubes by controlling the shape of the sacrificial template. The products were characterized by X-ray diffraction, transmission electron microscopy, scanning electron microscopy, and energy-dispersive spectrometry...

2011
Martin Gardner

What’s a question to your answer? We will not settle this puzzle here, yet we’ll taste it. But let’s begin at the beginning, namely in 1907, when Willem Abraham Wythoff [7], a Dutch mathematician, invented the game we analyze here, explained vividly by Martin Gardner in [5]. The game is played with two piles of tokens, each pile containing an arbitrary number of tokens. A move consists of eithe...

1999
M. PRIGENT

DiffŽrents procŽdŽs permettant la production embarquŽe d'hydrogne pour vŽhicules Žlectriques ˆ piles ˆ combustible sont passŽs en revue. Les combustibles primaires suivants sont considŽrŽs : ammoniac, mŽthanol, Žthanol et hydrocarbures. Le craquage catalytique de l'ammoniac permet l'obtention d'un mŽlange ˆ 75 % d'hydrogne, exempt de CO2 et convenant donc sans purification ultŽrieure pour l'a...

2010
Bin Xu Jian-Fei Lu Jian-Hua Wang

The isolation of the vibration due to a harmonic vertical load using pile rows embedded in a saturated poroelastic half-space is investigated in this study. Using the fundamental solution for a circular patch load and Muki’s method, the second kind of Fredholm integral equations describing the dynamical interaction between the pile rows and the saturated poroelastic half-space are obtained. Num...

Journal: :Discrete Applied Mathematics 2018
Endre Boros Vladimir Gurvich Nhan Bao Ho Kazuhisa Makino Peter Mursic

Moore’s generalization of the game of Nim is played as follows. Given two integer parameters n, k such that 1 ≤ k ≤ n, and n piles of tokens. Two players take turns. By one move a player reduces at least one and at most k piles. The player who makes the last move wins. The P-positions of this game were characterized by Moore in 1910 and an explicit formula for its Sprague-Grundy function was gi...

2006
Aviezri S. Fraenkel Elnatan Reisner

Given a vector of finitely many piles of finitely many tokens. In EndWythoff, two players alternate in taking a positive number of tokens from either end-pile, or taking the same positive number of tokens from both ends. The player first unable to move loses and the opponent wins. We characterize the P -positions (ai, K, bi) of the game for any vector K of middle piles, where ai, bi denote the ...

2017
Xiaohua Bao Shazim Ali Memon Haibin Yang Zhijun Dong Hongzhi Cui

Geothermal energy piles are a quite recent renewable energy technique where geothermal energy in the foundation of a building is used to transport and store geothermal energy. In this paper, a structural-functional integrated cement-based composite, which can be used for energy piles, was developed using expanded graphite and graphite nanoplatelet-based composite phase change materials (CPCMs)....

2014
Kevin A. Wood Richard A. Stillman Francis Daunt Matthew T. O’Hare

Effective wildlife management is needed for conservation, economic and human well-being objectives. However, traditional population control methods are frequently ineffective, unpopular with stakeholders, may affect non-target species, and can be both expensive and impractical to implement. New methods which address these issues and offer effective wildlife management are required. We used an i...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2002
Deniz Ertaş Thomas C Halsey Alex J Levine Thomas G Mason

We present an experimental and theoretical study of piles consisting of monodisperse spherical grains mixed with a weight fraction nu(d) of dimer grains made by the rigid bonding of two such spherical grains. The maximum static angle of stability tantheta(c) of the pile increases from 0.45 to 1.1 and the grain packing fraction Phi decreases from 0.58 to 0.52 as nu(d) is increased from 0 to 1. T...

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