Results 331 to 340 of about 376,467 (387)

Effect of printing orientation and post-curing time on the flexural strength of 3D-printed resins.

Journal of Prosthodontics, 2022
PURPOSE To evaluate the effect of printing orientation combined with different post-curing times on the flexural strength of 3D-printed resins. MATERIALS AND METHODS A total of 480 rectangular specimens with the dimensions of 64×10×3.3 mm were designed
Yousif A. Al-Dulaijan, Leenah Alsulaimi, R. Alotaibi, Areej Alboainain, S. Akhtar, S. Khan, Maram Al-Ghamdi, M. Gad   +7 more
semanticscholar   +1 more source

Flexural Properties and Hardness of CAD-CAM Denture Base Materials.

Journal of Prosthodontics, 2022
PURPOSE To compare flexural strength, elastic modulus, and surface hardness of CAD-CAM milled, 3D-printed, and heat-polymerized denture base resins. MATERIALS AND METHODS A total of 120 specimens were fabricated from heat-polymerized acrylic resin (HP),
Shaimaa M. Fouda, M. Gad, Reem Abualsaud, Passent Ellakany, H. AlRumaih, S. Khan, S. Akhtar, Faisal D. al-Qarni, F. Al-Harbi   +8 more
semanticscholar   +1 more source

The Flexural Strength and Flexural Modulus of Stereolithography Additively Manufactured Zirconia with different Porosities.

Journal of Prosthodontics, 2021
PURPOSE Additive manufacturing (AM) technologies are capable of fabricating complex geometries with different porosities. However, the effect of such porosities on mechanical properties of stereolithography (SLA) AM zirconia with different porosities is ...
A. Zandinejad, Omprakash Das, A. Barmak, Mathew Kuttolamadom, M. Revilla‐León   +4 more
semanticscholar   +1 more source

Combinatorics and flexure

ZAMP Zeitschrift f�r angewandte Mathematik und Physik, 1985
(From authors' summary.) Combinatorial identities, trigonometric formulas, together with complex variable techniques are used to derive exact and closed expressions for the six flexure functions of certain isotropic cylinders under flexure. The cross sections are bounded either by the closed curves \(r=\alpha \cos^ n(\theta /n)\) \((-\pi
Samih Obaid, D. C. Rung
openaire   +2 more sources

An abnormality at the hepatic flexure [PDF]

BMJ, 2012
A 92 year old woman presented to the emergency department after collapsing at home. She recalled standing from her chair, feeling lightheaded, and then collapsing. She had felt generally weak for more than a year, with weight loss of 56 lb (25.2 kg) but no change in bowel habit, dysphagia, or gastrointestinal bleeding.
Velauthan Rudralingham, Jawad Naqvi, Sarah Duff, Gill Watts   +3 more
openaire   +2 more sources

Fecaloma of the sigmoid flexure

Diseases of the Colon & Rectum, 1966
Fecaloma of the distal portion of the colon occurs rarely, but it should be considered in the differential diagnosis of any polypoid type of lesion. Often the diagnosis can be made from the clinical and radiologic features. In the beginning, therapy should be conservative, but surgical removal may be required.
Seymour A. Kaufman, Harold Karlin
openaire   +3 more sources

Tensile and flexural properties of natural fiber reinforced polymer composites: A review

Journal of reinforced plastics and composites, 2018
In recent years, researchers and scientists are facing problems in terms of environmental imbalance and global warming owing to numerous use of composite materials prepared by synthetic fibers and petrochemical polymers.
M. Z. Khan, S. Srivastava, M. Gupta
semanticscholar   +1 more source

Influence of steel fibers on the flexural performance of concrete incorporating recycled concrete aggregates and dune sand

, 2020
The flexural performance of steel fiber-reinforced concrete made with recycled concrete aggregates (RCA) and desert dune sand was investigated. Natural aggregates were replaced by 30, 70, and 100% RCA.
Nancy Kachouh, Hilal El-Hassan, T. El-Maaddawy   +2 more
semanticscholar   +1 more source

Fistulas of the sigmoid flexure

Diseases of the Colon & Rectum, 1961
Records of a series of 28 patients with sigmoidal fistulas have been reviewed. Our discussion of the incidence and pathogenesis of sigmoidal fistulas is based on a review of the literature and a study of a collected series of cases. The value of various diagnostic features (symptomatology, physical examination, sigmoidoscopy, roentgenography, urologic ...
Robert J. Rowe, Eugene S. Sullivan
openaire   +3 more sources