Varnish problems in turbine oil of power plants Thailand are still an issue today. The the coefficient friction will increase along with varnish concentration and deposits. This creates starting/re-starting turbine. Even advent manufacturing research to improve base quality antioxidant additive, contamination starting have been one most concerning for maintenance. recent version ASTM D4378-20 s...

Background: The aim of this study was to perform a comparative evaluation 5% Sodium fluoride varnish, neutral nano silver (NSF) varnish and acidulated in remineralising artificially induced enamel caries primary teeth. Methods: 39 anterior teeth were sectioned 2mm below the cemento-enamel junction (CEJ) mounted acrylic resin blocks...

BACKGROUND The majority of the detected increment in dental caries is confined to pit and fissure surfaces of first molars. Application of pit and fissure sealants and topical fluorides are widely used procedures in the prevention of decay, and their effectiveness in caries prevention has been proved by systematic reviews. OBJECTIVES The objective of this study was to compare the effectivenes...

In this study we report a new concept of printing low-cost two-dimensional micro-zone plates for chemical and biochemical assays and ELISA. It is different from the concept of forming multi-zone micro-zones on paper by hydrophobic barriers first reported by Yagoda. Instead, the desired multi-zone micro-zone pattern was first printed using a UV-curable varnish onto a polymer film; then fine powd...

CONTEXT Almost 20% of children aged 2 to 5 years have untreated dental caries. Physician interventions to prevent and manage dental caries in preschool children could help address this common problem. OBJECTIVE To review the evidence for effectiveness of five possible physician interventions- (1) screening and risk assessment, (2) referral, (3) provision of dietary supplemental fluoride, (4) ...

In this study, different coatings (gray epoxy primer, white varnish and red alkyd paint) of 7075 aluminum alloy are cleaned with a 500 W continuous-wave (CW) fiber laser. We analyzed the influence laser power density on temperature evolution target surface morphology. Under condition continuous irradiation for 1 s, experimental results indicated that suitable cleaning thresholds primer varnish,...

BACKGROUND The present study was conducted to evaluate the effect of different topical agents utilized for prevention of enamel decalcification around orthodontic brackets bonded to bleached and non-bleached enamel. METHODS Human maxillary premolars (n = 120) were divided into two equal groups. Teeth in group I were left without bleaching while those in group II were bleached with Vivastyle g...

Fluoride varnishes, both the first and second generations, are effective in inhibiting caries, especially children adolescents, by reducing it on average 43% for permanent teeth 37% deciduous teeth. The aim of this study was to evaluate dynamics vitro fluoride ion release from first- (Duraphat) second-generation (MI Varnish Embrace Varnish) varnishes impact type varnish, time its application pH...