Experiments on Glass to Determine the Best Glass Base on Comfort in Cyprus Weather

2019 ◽  
Author(s):  
Lida Ebrahimi Vefaei
Keyword(s):  
Glass Base

Development of the Biomaterials Technology for the Infection Resistance

2018 ◽  
Vol 24 (8) ◽  
pp. 886-895 ◽  
Author(s):  
Tengzhou Xu ◽  
Zhou Chen ◽  
Zhaofeng Chen ◽  
Yuxin Fan ◽  
Haifeng Mao
Keyword(s):  
Disease Spread ◽  
Metallic Ions ◽  
Comparative Performance ◽  
Tissue Interactions ◽  
Infection Resistance ◽  
Glass Base ◽  
Microbial Proliferation ◽  
The Common ◽  
Multicenter Clinical Trials ◽  
Technical Solutions

Infections caused by microbial proliferation are one of the common issues and serious threats to the medical care, and they usually result in disease spread. Therefore, it is a significant issue for developing the antiinfective biomaterials to control this problem, according to the specific clinical application. Meanwhile, all their properties, the best anti-infective performance, the safe biocompatibility and the appropriate tissue interactions must be conformed to each other. At present, technologies are developing novel biomaterials and surfaces endowed with anti-infective properties, relying either on bactericidal or anti-biofilm activities. This review focuses on thoroughly summarizing numerous kinds of antibacterial biomaterials, including the antibacterial matrix biomaterials, antibacterial coatings and films, nanostructured materials and antibacterial fibers. Among these strategies, the utilization of bio-glass base and graphene base antibacterial matrix, and their effects on the antibiosis mechanism were emphatically discussed. Simultaneously, the effects and mechanisms of nano-coated metallic ions are also mentioned. Overall, there is a wealth of technical solutions to contrast the establishment of an implant infection. The lack of well-structured prospective multicenter clinical trials hinders the achievement of conclusive data on the efficacy and comparative performance of antibacterial biomaterials.

Restite-melt and mafic-felsic magma mixing and mingling in an S-type dacite, Cerro del Hoyazo, southeastern Spain

1992 ◽  
Vol 83 (1-2) ◽  
pp. 139-144 ◽  
Author(s):  
H. P. Zeck
Keyword(s):  
Magma Mixing ◽  
Mafic Magma ◽  
Felsic Magma ◽  
Pelitic Rock ◽  
Rock Fragments ◽  
Southeastern Spain ◽  
Magma Mixing And Mingling ◽  
Glass Base

ABSTRACTApproximately 10-15 vol% of the Neogene Hoyazo dacite consists of Al-rich restite rock inclusions (A12O3 = 20–45%) and monocrystal inclusions derived therefrom. Restite material and dacitic melt were formed syngenetically from a (semi-)pelitic rock sequence by means of anatexis. Restite rock fragments and dacite show similar high δ18O values (13–16‰) corresponding to those found for sedimentary material. Striking monocrystal restite inclusions in the dacite rock are graphite crystals measuring a few hundred μm, 0.5–10 mm blue cordierite crystals and 2–10 mm ruby red crystals of almandine-rich garnet (1.1 ± 0.2 vol%). Although the almandine crystals are perfectly euhedral, they are identical in every respect to the crystals found in the Al-rich restite rock inclusions and cannot be crystallisation products of the magmatic melt. The dacite also contains many inclusions of quartz gabbroic and basaltoid material which contains inclusions identical to the restite material found in the dacitic glass base. Many basaltoid inclusions show well-developed chilled borders. These inclusions may represent a more mafic magma of deeper origin which mixed with some dacite magma before mingling into it.

scholarly journals Synthesis, Characterization of New Polyamides Bearing Triarylamine for Lightemitting Diodes

2019 ◽  
Vol 32 (1) ◽  
pp. 81
Author(s):  
Nehad Tariq Hasan ◽  
Azhar Kamil Rashid
Keyword(s):  
Tin Oxide ◽  
Aromatic Amines ◽  
Chemical Structure ◽  
Polar Solvents ◽  
Substitution Method ◽  
Glass Transition Temperatures ◽  
Good Thermal Stability ◽  
Nmr Techniques ◽  
Glass Base

In this work, new di-acid monomers 4, 4’-di-carboxillic-4”-bromo-2”, 6”-dimethyl triphenylamine (Ma), 4, 4’- di-carboxylic -4”-chloro-2”, 6”-dimethyl triphenylamine (Mb) and 4, 4’- di-carboxylic -2”,4”-dichloro-6”-methyl triphenylamine (Mc) were synthesized by reaction of p-cyanobenzofluride with three different aromatic amines (4-bromo,2,6-dimethyl aniline, 4-chloro,2,6-dimethyl aniline and 2,4 dichloro, 6- methyl aniline )  via aromatic nucleophilc substitution method to form three di cyano intermediates 4, 4’-Dicyano-4”-bromo-2”, 6”-dimethyl triphenylamine (Da), 4, 4’-dicyano-4”-chloro-2”, 6”-dimethyl triphenylamine (Db) and 4, 4’-dicyano-2”,4”-dichloro-6”-methyl triphenylamine (Dc) which form final di-carboxylic monomers after alkaline hydrolysis. Finally, these monomers react with two different aromatic di amines, phenylene diamins and benzidine respectively via polycondensation reaction to form final polyamides 4"-bromo-2", 6"-dimethyl-triphenylamine-4, 4'-polyphenylbenzamide (Pa), 4”-chloro-2”,6”-dimethyl- triphenylamine-4,4'-polyphenylbenzamide (Pb), 2”,4”-dichloro-6”-methyl-triphenylamine 4,4'- polyphenylbenzamide (Pc),4"-bromo-2",6"-dimethyl triphenylamine-4,4'- polyphenylbiphenylamide (Pd), 2”,4”-dichloro-6”-methyl-triphenylamine-4,4’-polyphenylamide (Pf). The chemical structure of these polymers characterized by FTIR and NMR techniques. All the results of polyamides showed excellent solubility in most polar solvents to form strong thin films. The polyamides possess a good thermal stability with height glass transition temperatures (Tg). Polyamides in DMSO solvent gave strong photoluminescence PL. Thin casting films of these polyamides in cyclic voltammetry (C.V) on glass base of iridium-tin oxide (ITO) as working electrode in dry CH3CN solvent contains 0.1 M of tetrabutylantimoneperchlorate (TBAP) as an Electrolyte gave one redox wave.

Next-generation glass-base phosphor-converted laser light engine

2015 ◽  
Author(s):  
Jin-Kai Chang ◽  
Wei-Chih Cheng ◽  
Yung-Peng Chang ◽  
Yi-Yin Kuo ◽  
Chun-Chin Tsai ◽  
...  
Keyword(s):  
Laser Light ◽  
Next Generation ◽  
Glass Base ◽  
Light Engine

scholarly journals 3P312 Activity measurements of mitochondria adsorbed on plastic or glass base

2004 ◽  
Vol 44 (supplement) ◽  
pp. S267
Author(s):  
Y. Uechi ◽  
H. Yoshioka ◽  
H. Saegusa ◽  
Y. Ohta
Keyword(s):  
Activity Measurements ◽  
Glass Base

The role of poly(acrylic acid) in conventional glass polyalkenoate cements

2016 ◽  
Vol 36 (3) ◽  
pp. 221-237 ◽  
Author(s):  
Adel M.F. Alhalawani ◽  
Declan J. Curran ◽  
Daniel Boyd ◽  
Mark R. Towler
Keyword(s):  
Acrylic Acid ◽  
Molar Mass ◽  
Clinical Performance ◽  
Ion Release ◽  
Bioactive Materials ◽  
Weight Concentration ◽  
Glass Base ◽  
Over 40 Years ◽  
Poly Acrylic Acid

Abstract Glass polyalkenoate cements (GPCs) have been used in dentistry for over 40 years. These novel bioactive materials are the result of a reaction between a finely ground glass (base) and a polymer (acid), usually poly(acrylic acid) (PAA), in the presence of water. This article reviews the types of PAA used as reagents (including how they vary by molar mass, molecular weight, concentration, polydispersity and content) and the way that they control the properties of the conventional GPCs (CGPCs) formulated from them. The article also considers the effect of PAA on the clinical performance of CGPCs, including biocompatibility, rheological and mechanical properties, adhesion, ion release, acid erosion and clinical durability. The review has critically evaluated the literature and clarified the role that the polyacid component of CGPCs plays in setting and maturation. This review will lead to an improved understanding of the chemistry and properties of the PAA phase which will lead to further innovation in the glass-based cements field.

An Electron Transmission Microscopy Study of Chemically Reduced Cobalt

1967 ◽  
Vol 25 ◽  
pp. 294-295
Author(s):  
R. D. Fisher ◽  
F. J. Jackson ◽  
V. Morton
Keyword(s):  
Chloride Solution ◽  
Chemical Reduction ◽  
Microscopy Study ◽  
Palladium Chloride ◽  
Growth Stages ◽  
Transmission Microscopy ◽  
Cobalt Ions ◽  
Electron Transmission ◽  
Glass Base ◽  
Electron Transmission Microscopy

The early growth stages of chemically reduced cobalt on thin Formvar substrates were examined by electron transmission microscopy. The growth characteristics were examined as a function of the average effective thickness and the deposition rate (1 Å/sec. to 6 Å/sec.). The chemical reduction method is essentially a controlled autocatalytic reduction of cobalt ions from solution by hypophosphite ions in the presence of a catalyst (Co, Ni, Pd, Al). Thin Formvar films prepared on a glass base were indirectly catalyzed with palladium by immersion in a stannous chloride solution, rinsing and immersing in a palladium chloride solution.

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