نتایج جستجو برای: high strength tubes

تعداد نتایج: 2237872  

Journal: :Metals 2022

In this paper, the eccentric compression test of seven specimens was conducted to explore application possibility recycled aggregate concrete (RAC) in L-shaped columns composed concrete-filled steel tubes (CFST). The main parameter is replacement ratio coarse aggregates (RCA), and an column hollow set as a control. results indicated that bearing capacity stiffness RAC-filled (RACFSTs) are bette...

2015
J. F. Dong

This paper presents experimental research on structural behaviour of normal and recycled aggregate concrete filled steel tube (RACFT) columns externally strengthened with carbon fibre reinforced polymer (CFRP) sheets and subjected to axial loading. A total of 22 specimens were tested to investigate the influence of the following variables: (1) tube configurations, circular or square, solid or h...

2011
Célia Regina Maio PINZAN-VERCELINO Arnaldo PINZAN Júlio de Araújo GURGEL Fausto Silva BRAMANTE Luciana Maio PINZAN

UNLABELLED Despite the advances in bonding materials, many clinicians today still prefer to place bands on molar teeth. Molar bonding procedures need improvement to be widely accepted clinically. OBJECTIVE The purpose of this study was to evaluate the shear bond strength when an additional adhesive layer was applied on the occlusal tooth/tube interface to provide reinforcement to molar tubes....

Journal: :Pediatrics 2014
Ina F Wallace Nancy D Berkman Kathleen N Lohr Melody F Harrison Adam J Kimple Michael J Steiner

BACKGROUND AND OBJECTIVE The near universality of otitis media with effusion (OME) in children makes a comparative review of treatment modalities important. This study's objective was to compare the effectiveness of surgical strategies currently used for managing OME. METHODS We identified 3 recent systematic reviews and searched 4 major electronic databases. Eligible studies included randomi...

Journal: :JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 1960

1999
D. Horan

The general performance of the Advanced Photon Source (APS) 352-MHz/1-MW continuous wave (CW) klystrons is discussed. The original seven-klystron inventory at the Advanced Photon Source has been in operation since 1995 with good results. Five tubes are presently in accelerator operation, with two tubes as spares. The overall performance of the tubes has been very good. Two tubes were removed fr...

2014
Nancy D. Berkman Melody F. Harrison Adam J. Kimple Michael J. Steiner

BACKGROUND AND OBJECTIVE: The near universality of otitis media with effusion (OME) in children makes a comparative review of treatment modalities important. This study’s objective was to compare the effectiveness of surgical strategies currently used for managing OME. METHODS: We identified 3 recent systematic reviews and searched 4 major electronic databases. Eligible studies included randomi...

1955
P Hammond

The magnetic screening effect of cylindrical iron tubes of different thicknesses and permeabilities is discussed and analysed, particular attention being paid to the effect of saturation. The problem is approached from a consideration of the induced pole strength on the surface of the iron. The distribution of pole strength is expressed by means of a Fourier series, and it is shown that such a ...

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