Results 161 to 170 of about 512,547 (364)
Micromachined Double‐Membrane Mechanically Tunable Metamaterial for Thermal Infrared Filtering
Advanced Photonics Research, Volume 6, Issue 5, May 2025.Herein, a mechanically tunable double‐layer plasmonic metamaterial leveraging the extraordinary optical transmission effect observed in subwavelength arrays of openings within thin metal layers is presented. The concept is experimentally validated by integrating the proposed metamaterial structure into an electrostatic parallel‐plate actuator to create
Oleg Bannik +7 more
wiley +1 more source
Frictional Resistance of Three Types of Ceramic Brackets
eJournal of Oral Maxillofacial Research, 2014 Objectives: To investigate the static frictional resistance at the bracket/archwire interface in two recently introduced bracket systems and compare them to conventional ceramic and conventional metal bracket systems.
Claire L Williams, Khaled Khalaf
doaj +1 more source
Advanced Synthesis &Catalysis, EarlyView.Simple and selective. The electrochemical heterofunctionalization of activated tropones is achieved using readily available inorganic salts. A theoretical model, based on cyclic voltammetry and quantum chemistry calculations, predicts both reactivity trends and site selectivity.
Mauro Garbini +8 more
wiley +1 more source
Friction between different wire bracket combinations in artificial saliva: an in vitro evaluation
Journal of Applied Oral Science, 2011 OBJECTIVE: The objective this work was to assess the friction coefficient between brackets and wires of different materials under conditions simulating the oral environment.
Tatiana Kelly da Silva Fidalgo +3 more
doaj +1 more source
475. [V. 1. a. δ.] The Use of Brackets in Arithmetic [PDF]
, 1916 W. F. Sheppard
openalex +1 more source
HARMLESS Early Warning System for Advanced Materials
Advanced Sustainable Systems, EarlyView.The HARMLESS Early Warning System tackles Advanced Materials (AdMa) risk governance by providing a framework, organised in two tiers, underpinned with methods/tools to support risk assessors in the pre‐assessment preceding risk assessment. It allows for initial screening to identify AdMa with concerns considering exposure, hazards, sustainability and ...
Julia Prinz +11 more
wiley +1 more source
Journal of Microbiology & Biology EducationThe complexity of modern biology poses challenges in fostering interdisciplinary understanding, particularly between practicing scientists and the public.
Phillip R. Myer +9 more
doaj +1 more source
Surface roughness of three types of modern plastic bracket slot floors and frictional resistance.
Angle Orthodontist, 2014 OBJECTIVE To quantitatively analyze the surface roughness of the slot floors of three types of modern plastic brackets and to measure static frictional force during sliding mechanics in vitro.
Sung-Hwan Choi, D. Kang, C. Hwang
semanticscholar +1 more source
Journal of the American Medical Association, 1915 The device shown in the accompanying illustration is so simple that I hesitate to say a word in explanation of it. The C. M. Sorensen Company, New York, made the first one from plans described by me more than one year ago. Since then there has been quite a demand for it; hence it seems worthy of a wider notice than it has hitherto received.
openaire +3 more sources