Results 101 to 110 of about 5,381,996 (392)

Shear bond strength of ceramic and metallic orthodontic brackets bonded with self-etching primer and conventional bonding adhesives

open access: yesElectronic Physician, 2017
Introduction: Adult patients typically require high-quality orthodontic treatment for ceramic brackets, but some clinicians remain concerned about the bond strength of these brackets.
Valiollah Arash   +4 more
doaj   +1 more source

The Effect of EDTA in Attachment Gain and Root Coverage [PDF]

open access: yes, 2000
Root surface biomodification using low pH agents such as citric acid and tetracycline has been proposed to enhance root coverage following connective tissue grafting.
Andreana, Sebastiano   +3 more
core   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva   +9 more
wiley   +1 more source

Influence of Different Enamel Pretreatment on Bond Strength of Fissure Sealant

open access: yesActa Stomatologica Croatica
Objective: The aim of this in vitro study was to evaluate the bond strength of a resin composite fissure sealant to enamel which was pre-treated with different laser pulse modes and additional acid etching. Materials and Methods: Forty-two healthy molars
Dafina Doberdoli, Hrvoje Jurić
doaj   +1 more source

A Study of Selectively Digital Etching Silicon-Germanium with Nitric and Hydrofluoric Acids [PDF]

open access: green, 2020
Chen Li   +31 more
openalex   +1 more source

Device Integration Technology for Practical Flexible Electronics Systems

open access: yesAdvanced Functional Materials, EarlyView.
Flexible device integration technologies are essential for realizing practical flexible electronic systems. In this review paper, wiring and bonding techniques critical for the industrial‐scale manufacturing of wearable devices are emphasized based on flexible electronics.
Masahito Takakuwa   +5 more
wiley   +1 more source

Crystal growth vs. conventional acid etching: A comparative evaluation of etch patterns, penetration depths, and bond strengths

open access: yesIndian Journal of Dental Research, 2008
The present study was undertaken to investigate the effect on enamel surface, penetration depth, and bond strength produced by 37% phosphoric acid and 20% sulfated polyacrylic acid as etching agents for direct bonding.
Devanna Raghu, Keluskar K
doaj  

Using In Situ TEM to Understand the Surfaces of Electrocatalysts at Reaction Conditions: Single‐Atoms to Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
This review summarizes recent advances in closed‐cell in situ TEM strategies for accurate determination of the activity and stability of single‐atom catalyst systems during operation. Operando conditions causing dynamic changes of SAC systems are highlighted and we explain why ensemble average‐based optical techniques may benefit from the technological
Martin Ek   +4 more
wiley   +1 more source

Physical Model Test on Conductivity of Acid-etched Fracture of Large-scale Rock Sample and Laser Scanning

open access: yesShiyou jixie, 2017
At present, the core size for the experimental study on the conductivity of acid-etched fracture is too small, which results in limited etching distance.
Liu Yang   +5 more
doaj  

Influence of the C4H6O6 Concentration in the (NH4)2Cr2O7-HBr-C4H6O6 Composition on the Chemical-Dynamic Polishing of the III-V Semiconductors

open access: yesФізика і хімія твердого тіла, 2017
The paper presents the results of experimental determination of the influence of the initial concentration of tartaric acid on the features of the chemical interaction of InAs, InSb, GaAs and GaSb with (NH4)2Cr2O7-HBr-C4H6O6 etching solutions.
I. V. Levchenko   +3 more
doaj   +1 more source

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