نتایج جستجو برای: composite screw

تعداد نتایج: 137496  

2015

Abstract—The composite flour blend consisting of corn, pearl millet, black gram and wheat bran in the ratio of 80:5:10:5 was taken to prepare the extruded product and their effect on physical properties of extrudate was studied. The extrusion process was conducted in laboratory by using twin screw extruder. The physical characteristics evaluated include lateral expansion, bulk density, water ab...

2015

Abstract—The composite flour blend consisting of corn, pearl millet, black gram and wheat bran in the ratio of 80:5:10:5 was taken to prepare the extruded product and their effect on physical properties of extrudate was studied. The extrusion process was conducted in laboratory by using twin screw extruder. The physical characteristics evaluated include lateral expansion, bulk density, water ab...

Journal: :BioMedical Engineering OnLine 2008
Laurence M O'Connor-Read Jerome A Davidson Benjamin M Davies Michael G Matthews Paul Smirthwaite

BACKGROUND The dynamic compression screw is a plate and screws implant used to treat fractures of the distal femur. The Biomet Matthews Nail is a new retrograde intramedullary nail designed as an alternative surgical option to treat these fractures. The objective of this study was to assess the comparative endurance of both devices. METHOD The dynamic compression screw (DCS) and Biomet Matthe...

2015

Abstract—The composite flour blend consisting of corn, pearl millet, black gram and wheat bran in the ratio of 80:5:10:5 was taken to prepare the extruded product and their effect on physical properties of extrudate was studied. The extrusion process was conducted in laboratory by using twin screw extruder. The physical characteristics evaluated include lateral expansion, bulk density, water ab...

2007
Gang Sui Weihong Zhong Mike A Fuqua Chad A Ulven

Sunflower hull sanding dust (SHSD) filled polypropylene (PP) composite was prepared using a twin-screw extruder. Mechanical and thermal properties of the SHSD/PP composite were characterized contrasting to organically modified clay /PP composite. Differential scanning calorimetry (DSC) analysis showed that the crystallization temperature and the degree of crystallinity of PP exhibited changes w...

Journal: :The Journal of prosthetic dentistry 2015
Naomi Tanoue Takuo Tanaka

A direct bonded fixed partial dental prosthesis, with a composite resin denture tooth as a pontic, a tri-n-butylborane initiated adhesive resin, and screw posts for reinforcement, was still functioning after an observation period of 20 years. The prosthesis was found to be reliable for long-term clinical use when chemically and mechanically reinforced.

2017
A. S. Yang S. Z. Chai H. H. Hsu T. C. Kuo W. T. Wu W. H. Hsieh Y. C. Hwang

The position error of a feed drive system is mostly caused by thermal deformation of a ball screw shaft. A high-speed ball screw system can generate massive heat with greater thermal expansion produced, and consequently have a negative effect on the positioning accuracy. In this study, we applied the computational approach using the finite element method (FEM) to simulate the thermal expansion ...

2017
Xuchao Shi Tianlong Pan Dengying Wu Ningyu Cai Rong Chen Bin Li Rui Zhang Chengwei Zhou Jun Pan

BACKGROUND Screw fixation is a common method used for the treatment of Mason type II radial head fractures. The purpose of our study was to evaluate the mechanical properties of three different screw orientations used for fixation of Mason type II radial head fractures. METHODS We sawed 24 medium-frequency fourth-generation Synbone radial bones to simulate unstable radial head fractures, whic...

Journal: :Brazilian dental journal 2016
Rodrigo de Paula Pereira Cibele Oliveira de Melo Rocha José Maurício dos Santos Nunes Reis João Neudenir Arioli-Filho

The purpose of this study was to assess the influence of sealing of the screw access hole (SAH) on the fracture resistance of metal-ceramic implant-supported restorations. UCLA abutments were used to make 30 implant-retained mandibular molar restorations and divide equally into three groups: Group SRS: screw-retained restorations with SAH sealed; Group SRNS: screw-retained restorations with SAH...

2015
Wei-Jen Chang Yu-Hwa Pan Jy-Jiunn Tzeng Ting-Lin Wu Tsorng-Harn Fong Sheng-Wei Feng Haw-Ming Huang Bing Xu

Nanosized iron oxide particles exhibit osteogenic and radiopaque properties. Thus, iron oxide (Fe3O4) nanoparticles were incorporated into a biodegradable polymer (poly-L-lactic acid, PLLA) to fabricate a composite bone screw. This multifunctional, 3D printable bone screw was detectable on X-ray examination. In this study, mechanical tests including three-point bending and ultimate tensile stre...

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