Results 91 to 100 of about 123,547 (284)

Influence of Different Enamel Pretreatment on Bond Strength of Fissure Sealant

Acta 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

Improved surface quality of anisotropically etched silicon {111} planes for mm-scale integrated optics

, 2013
We have studied the surface quality of millimeter-scale optical mirrors produced by etching CZ and FZ silicon wafers in potassium hydroxide to expose the $\{111\}$ planes.
Cotter, J. P., Hinds, E A, Kraft, M, Zeimpekis, I.   +3 more
core   +1 more source

Reconsidering the double etching of enamel: do self-etching primers contaminate phosphoric acid-etched enamel?

The journal of adhesive dentistry, 2013
To evaluate the composite-to-enamel bond following double etching of the enamel using phosphoric acid and different self-etching (SE) bonding systems with and without the application of their respective acidic primers.The enamel surfaces of 90 human molars were ground (600 grit) flat and randomly divided into nine groups (n = 10).
Andreas, Rathke, Veit, Ostermeier, Rainer, Muche, Bernd, Haller   +3 more
openaire   +2 more sources

BEOL‐Compatible Liquid‐Metal‐Printing of Ultrathin 2D Oxide Memtransistors and Its Applications in Neuromorphic Computing

Advanced Functional Materials, EarlyView.
Ultrathin 2D indium oxide memtransistors are reproducibly fabricated via a scalable liquid‐metal‐printing process under ambient, low‐temperature conditions. The devices achieve robust, gate‐tunable bipolar memristive switching with high switching ratios at a BEOL‐compatible maximum processing temperature of 300°C. Governed by trap‐controlled transport,
Sanghyun Moon, Seungyun Lee, Sunghan Cho, Donggyu Lee, Jehwan Park, Seongyun Yang, Jihyun Kim   +6 more
wiley   +1 more source

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

Shiyou 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, Yuan Xuefang, Wang Jingbo, Liu Ju, Xiong Yongfu, Wang Rong   +5 more
doaj  

Trifluoromethoxylated Electron Acceptor Enabling Ternary Organic Solar Cells with over 20% Power Conversion Efficiency

Advanced Functional Materials, EarlyView.
ABSTRACT In this work, we introduce a trifluoromethoxy (OCF3) group as a pseudo‐halogen terminal group design for non‐fullerene acceptors, which combines strong inductive electron‐withdrawing ability with moderate resonance donation. The as‐synthesized BTP‐OCF3, when benchmarked against its methoxy analogue BTP‐OCH3, demonstrates narrowed bandgap ...
Chunliang Li, Anhai Liang, Shuwei Qiu, Gavin Ho Ming Ng, Aleksandr Sergeev, Joshua Yuk Lin Lai, Bosen Zou, Xianghao Zeng, Jicheng Yi, Hongxiang Li, Junpo Guo, Wei Liu, Jia Yao, Kam Sing Wong, Zhipeng Kan, Sai Ho Pun, He Yan   +16 more
wiley   +1 more source

Acid-etching fracturing law of multi-stage alternating injection in limestone reservoirs

Youqi dizhi yu caishoulu
The majority of limestone reservoirs in China are characterized by deep burial， low porosity， and low permeability and are influenced by factors such as elevated temperatures， high closure pressures， and strong heterogeneity.
LU Yixin, QI Ning, ZHOU Shunming, WANG Zhuanzhuan, LI Xuesong, SU Xuhang, WANG Liangliang   +6 more
doaj   +1 more source

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

Фізика 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, I. B. Stratiychuk, V. M. Tomashyk, G. P. Malanych   +3 more
doaj   +1 more source

Self‐Sintering Ionogel Binder for Flexible, Recyclable, and Healable Printed Giant Magnetoresistive Sensors

Advanced Functional Materials, EarlyView.
ABSTRACT Electronic waste has emerged as a major environmental challenge, driven by the massive consumption and a limited lifetime of modern electronic devices, stimulating the development of sustainable electronics. Here, an all‐biomaterial gelatin‐choline‐citric acid ([Ch][CA]) ionogel is developed as an active binder to realize self‐sintered ...
Lin Guo, Xiaotao Wang, Guannan Mu, Proloy Taran Das, Igor Veremchuk, Conrad Schubert, Aaron D. Cross, Yevhen Zabila, Xuan Peng, Larysa Baraban, Denys Makarov   +10 more
wiley   +1 more source

Evaluation of resin penetration depth in enamel surface for orthodontic bonding exposed to five types of enamel conditioning methods: A scanning electron microscopic study

Journal of Pharmacy and Bioallied Sciences, 2019
Aims and Objectives: To evaluate the enamel surface depth of resin penetration for orthodontic bonding when exposed to five types of enamel conditioning methods using scanning electron microscope.
D Pawan Kumar Bhandari, Gobichettipalayam J Anbuselvan, Muthukumar Karthi   +2 more
doaj   +1 more source