نتایج جستجو برای: centering pier

تعداد نتایج: 4390  

Journal: :dental research journal 0
mandana naseri payam paymanpour ali kangarloo sahar haddadpur omid dianat mohammad ali ketabi

background: the aim of this study was to evaluate apical transportation and centering ability of single-fi le instruments, waveone primary, with full rotation versus reciprocation movement using cone-beam computed tomography (cbct) analysis in curved mesiobuccal (mb) root canal of human mandibular molars. materials and methods: thirty mb canals of mandibular molars were randomly divided into tw...

‎A full Nesterov-Todd (NT) step infeasible interior-point algorithm‎ ‎is proposed for solving monotone linear complementarity problems‎ ‎over symmetric cones by using Euclidean Jordan algebra‎. ‎Two types of‎ ‎full NT-steps are used‎, ‎feasibility steps and centering steps‎. ‎The‎ ‎algorithm starts from strictly feasible iterates of a perturbed‎ ‎problem‎, ‎and, using the central path and feasi...

2010
Farhad Ansari

Local bridge scour is caused by the interference of bridge piers with the flow of water and is characterized by the formation of scour holes. Local scour occurs at a bridge pier when the local flow field is strong enough to remove bed materials. Several variables affect the scour depth including the flow intensity, the relative flow depth, the pier-width, and the properties of the river bed mat...

1992
Boi Faltings Djamila Haroud Ian F. C. Smith

which connict with them are activated. Thus, in example a) of Figure 5, new values for feasible and preferred intervals of Pier-width are found by propagating the constraint from Beam-depth. Preferences represent optimal values, and the closer the value is to the preference the better the criterion is adhered to. When preferences are in connict, they are therefore not dropped, but weakened so t...

2015
Ning Wan

The damage caused by earthquake is irresistible for human beings, and the structure with poor robustness is most affected by earthquake. Especially when traffic arteries like bridges and highways are affected, the losses will be unimaginable. To reduce the loss in earthquake, the paper targets the long-span cable-stayed bridge and discusses a method of structural damage control. The energy-diss...

2014
YanQun Zhou YeZhi Zhang MeiXin Ye MengSi Zhan

The seismic behavior and plasticity spreading of a neotype column-slab high pier are researched in this paper. Four scale model tests of a web slab with two boundary columns are carried out under cyclic inelastic lateral displacements simulating seismic response. The test results show that the neotype column-slab high pier has strong and stable bearing capacity, good ductility, and energy dissi...

2008
Luis A. Montejo Mervyn J. Kowalsky

Seismically isolated bridges with inverted T-cap beams are not investigated in depth until now. Elastic response spectrum analysis is typically preferred in design of bridges. In this study, it has been demonstrated that elastic response spectrum analysis may not be the right analysis tool to design bridges with inverted T cap beams since pounding effects are ignored. Pier design forces determi...

2010
Jennifer F. Wilson

Science Writer Jennifer F. Wilson The content of In the Clinic is drawn from the clinical information and education resources of the American College of Physicians (ACP), including PIER (Physicians’ Information and Education Resource) and MKSAP (Medical Knowledge and Self-Assessment Program). Annals of Internal Medicine editors develop In the Clinic from these primary sources in collaboration w...

1997
Udo Hahn Michael Strube

We specify an algorithm that builds up a hierarchy of referential discourse segments from local centering data. The spatial extension and nesting of these discourse segments constrain the reachability of potential antecedents of an anaphoric expression beyond the local level of adjacent center pairs. Thus, the centering model is scaled up to the level of the global referential structure of disc...

2001
Sofia Gustafson-Capková

The purpose of the study reported in this paper is to investigate how local focusing structure, analysed in terms of Centering Theory (Grosz, Joshi & Weinstein, 1995), and global d iscourse structure, analysed in terms of discourse segments and discourse segment purposes (Grosz & Sidner, 1986), interact. Swedish dialogue was analysed according to Centering Theory and Grosz and Sidners (1986) di...

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