Results 81 to 90 of about 14,195 (309)

Evaluation of stress distribution of a new restorative material and composite resin: a finite-element analysis study

Biotechnology & Biotechnological Equipment, 2017
Glass carbomer cement is a new dental material developed from the traditional glass ionomer cements. It has better mechanical and chemical features when compared to the conventional glass ionomer cements.
Mehmet Sinan Doğan, Fatih Demirci, Elif Eratilla, Veysel Eratilla, Yasemin Yavuz, Mehmet Unal   +5 more
doaj   +1 more source

Development of phenolic concrete mixes and structural behaviour of phenolic concrete components [PDF]

, 1991
This work relates to the development of a method of preparing a filled phenolic resin, for use particularly, but not exclusively, in building materials. The method includes mixing filler and micro-filler, a catalyst, resin and a hetrocyclic alcohol (i.e.
Shariatmadari, Ali Akbar, Shariatmadari, A.A   +1 more
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Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

Deep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao, Shuheng Du, Yuan Zhang, Jinghong Hu, Bo Zhou, Yun Wei   +5 more
wiley   +1 more source

Modeling and experimental validation of bolt–grout bond–slip behavior for deep underground excavation support

Deep Underground Science and Engineering, EarlyView.
A novel shear‐lag model, validated by pull‐out tests, incorporates a constant bond stress stage to predict the complete load–displacement response of grouted rock bolts, providing a new tool for optimizing anchorage length and material toughness in deep underground engineering. Abstract The stability of rock masses in deep underground excavations, such
Wenhui Bian, Xiaohui He, Kexue Wang, Yufei Wu, Guoxin Wang, Shaochen Zhang, Jun Yang   +6 more
wiley   +1 more source

Comparative Evaluation of Microhardness and Degree of Polymerization of Dual-cure Resin Cement on Luting Composite Resin Endocrowns of 5.5mm and 7.5mm Thicknesses: An in-vitro Study [PDF]

International Journal of Scientific Research in Dental and Medical Sciences
Background and aim: The aim of this in vitro study was to assess and compare the microhardness and degree of polymerization of dual-cure resin cement used for luting composite resin Endocrowns using the Vickers microhardness test and Fourier Transform ...
Prakruthi Nallikatte, Shony Mohan, Harsha Karunakaran, Ravichandran Rajagopal, Vivek Nair, Amal Shajahan   +5 more
doaj   +1 more source

Optimisation of interfacial bond strength of glass fibre endodontic post systems.

, 2011
MPhilCurrently endodontically treated teeth are clinically restored using a post and crown system, where the elastic modulus of the post is similar to dentine.
Thanjal, Narinderjeet Tina
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Avaliação da resistência flexural de um cimento resinoso dual submetido a diferentes simulações clínicas [PDF]

, 2005
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-Graduação em OdontologiaO objetivo desta pesquisa foi avaliar a resistência flexural do cimento resinoso dual Rely-X CRA (3M ESPE), submetido a ...
Silveira, Márcia Regina da
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Carbon emission assessment of tunnel infrastructures: From construction to operation

Deep Underground Science and Engineering, EarlyView.
This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long, Wout Broere, Xuehui Zhang, Tian Xia, Richard de Nijs   +4 more
wiley   +1 more source

Avaliação do tempo e condição de armazenagem na fluência em resinas compostas [PDF]

, 2015
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Florianópolis, 2015.Objetivo: Avaliar o comportamento viscoelástico (creep) de resinas compostas dentais sob teste de ...
Savi, Camila Gonçalves
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Dental development in the tropical gar (Atractosteus tropicus) and the evolution of vertebrate dentitions

Developmental Dynamics, EarlyView.
Abstract Background Dentitions have diversified enormously during vertebrate evolution, involving reductions, modifications, or allocations to prey seizing and processing regions. A combination of ancient and novel features related to dental and oropharyngeal apparatuses is found in extant lineages of non‐teleost fishes, such as the gars.
Anna Pospisilova, Jan Stundl, Lenin Arias‐Rodriguez, Robert Cerny, Vladimír Soukup   +4 more
wiley   +1 more source