scholarly journals Influence of thermal tempering processes on color characteristics of different monolithic computer-assisted design and computer-assisted manufacturing ceramic materials

2019 ◽  
pp. 0-0 ◽  
Author(s):  
N Juntavee ◽  
P Uasuwan
Keyword(s):  
Ceramic Materials ◽  
Computer Assisted ◽  
Color Characteristics ◽  
Computer Assisted Design ◽  
Thermal Tempering

scholarly journals Flexural Strength of Different Monolithic Computer-Assisted Design and Computer-Assisted Manufacturing Ceramic Materials upon Different Thermal Tempering Processes

2020 ◽  
Vol 14 (04) ◽  
pp. 566-574
Author(s):  
Niwut Juntavee ◽  
Pithiwat Uasuwan
Keyword(s):  
Flexural Strength ◽  
Tetragonal Zirconia ◽  
Ceramic Materials ◽  
Bending Test ◽  
Lithium Silicate ◽  
Computer Assisted ◽  
Three Point Bending ◽  
Significant Difference ◽  
Monolithic Zirconia ◽  
Thermal Tempering

Abstract Objective Strength of ceramics related with sintering procedure. This study investigated the influence of different tempering processes on flexural strength of three monolithic ceramic materials. Materials and Methods  Specimens were prepared in bar-shape (width × length × thickness = 4 × 14 × 1.2 mm) from yttria-stabilized tetragonal zirconia polycrystalline (Y-TZP, inCoris TZI [I]), zirconia-reinforced lithium silicate (ZLS, Vita Suprinity [V]), and lithium disilicate (LS2, IPS e.max CAD [E]), and sintered with different tempering processes: slow (S), normal (N), and fast (F) cooling procedure (n = 15/group). Flexural strength (σ) was determined using three-point bending test apparatus at 1 mm/min crosshead speed. Statistical Analysis  The analysis of variance and Bonferroni’s multiple comparisons were determined for significant difference (α = 0.05). Weibull analysis was applied for survival probability, Weibull modulus (m), and characteristics strength (σo). Microstructures were evaluated with scanning electron microscope and X-ray diffraction. Results  The mean ± standard deviation (MPa) of σ, m, and σo were: 1,183.98 ± 204.26, 6.23, 1,271.80 for IS; 1,084.43 ± 204.79, 5.76, 1,170.08 for IN; 777.19 ± 99.77, 8.78, 819.96 for IF; 267.15 ± 32.71, 9.11, 281.48 for VS; 218.43 ± 38.46, 6.40, 234.23 for VN; 252.67 ± 37.58, 7.20, 269.23 for VF; 392.09 ± 37.91, 11.37, 409.23 for ES; 378.88 ± 55.38, 7.45, 403.11 for EN, and 390.94 ± 25.34, 16.00, 403.51 for EF. Thermal tempering significantly affected flexural strength of Y-TZP (p < 0.05), but not either ZLS or LS2 (p > 0.05). Y-TZP indicated significantly higher flexural strength upon slow tempering than others. Conclusion  Enhancing flexural strength of Y-TZP can be achieved through slow tempering process and was suggested as a process for monolithic zirconia. Strengthening of ZLS and LS2 cannot be accomplished through tempering; thus, either S-, N-, or F- tempering procedure can be performed. Nevertheless, to minimize sintering time, rapid thermal tempering is more preferable for both ZLS and LS2.

Computational Approaches for the Design of Mosquito Repellent Chemicals

2020 ◽  
Vol 27 (1) ◽  
pp. 32-41 ◽  
Author(s):  
Subhash C. Basak ◽  
Apurba K. Bhattacharjee
Keyword(s):  
Computational Design ◽  
Quantitative Structure Activity Relationship ◽  
Computer Assisted ◽  
Quantitative Structure ◽  
Mosquito Repellent ◽  
Computational Approaches ◽  
Qsar Studies ◽  
Computer Assisted Design ◽  
Structure Activity ◽  
Mosquito Repellents

Background: In view of many current mosquito-borne diseases there is a need for the design of novel repellents. Objective: The objective of this article is to review the results of the researches carried out by the authors in the computer-assisted design of novel mosquito repellents. Methods: Two methods in the computational design of repellents have been discussed: a) Quantitative Structure Activity Relationship (QSAR) studies from a set of repellents structurally related to DEET using computed mathematical descriptors, and b) Pharmacophore based modeling for design and discovery of novel repellent compounds including virtual screening of compound databases and synthesis of novel analogues. Results: Effective QSARs could be developed using mathematical structural descriptors. The pharmacophore based method is an effective tool for the discovery of new repellent molecules. Conclusion: Results reviewed in this article show that both QSAR and pharmacophore based methods can be used to design novel repellent molecules.

Is computer-assisted design and manufacturing technology useful in the surgical management of trigonocephaly?

2021 ◽  
Author(s):  
C.H.A.U.V.E.L.-P.I.C.A.R.D. Julie ◽  
B.E.U.R.I.A.T. Pierre-Aurélien ◽  
D.A.U.R.A.D.E. Mathieu ◽  
S.Z.A.T.H.M.A.R.I. Alexandru ◽  
M.O.T.T.O.L.E.S.E. Carmine ◽  
...  
Keyword(s):  
Surgical Management ◽  
Manufacturing Technology ◽  
Computer Assisted ◽  
Computer Assisted Design ◽  
Design And Manufacturing

Computer-assisted design of novel 1,4-dihydropyridine calcium channel blockers

2013 ◽  
Vol 40 (12) ◽  
pp. 959-965 ◽  
Author(s):  
Estella G. da Mota ◽  
Daniel G. Silva ◽  
Maria C. Guimarães ◽  
Elaine F.F. da Cunha ◽  
Matheus P. Freitas
Keyword(s):  
Calcium Channel ◽  
Calcium Channel Blockers ◽  
Computer Assisted ◽  
Channel Blockers ◽  
Computer Assisted Design

Computer-assisted design for paracetamol masking bitter taste prodrugs

2011 ◽  
Vol 18 (1) ◽  
pp. 103-114 ◽  
Author(s):  
Hatem Hejaz ◽  
Rafik Karaman ◽  
Mustafa Khamis
Keyword(s):  
Bitter Taste ◽  
Computer Assisted ◽  
Computer Assisted Design

HIV vaccine development by computer assisted design: the GAIA vaccine

Vaccine ◽  
2005 ◽  
Vol 23 (17-18) ◽  
pp. 2136-2148 ◽  
Author(s):  
A DEGROOT ◽  
L MARCON ◽  
E BISHOP ◽  
D RIVERA ◽  
M KUTZLER ◽  
...  
Keyword(s):  
Vaccine Development ◽  
Hiv Vaccine ◽  
Computer Assisted ◽  
Computer Assisted Design
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