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  • Materials | Free Full-Text | Functional Coatings for ...

    Dental plaque and a biofilm are regarded as the main contributing factors of periodontal diseases and dental caries. White spot lesions (WSL) or carious demineralization are prevalent unwanted side-effects of orthodontic treatment [8,9].Based on the dental literature, orthodontic treatment with fixed appliances may increase plaque accumulation and a heightened amount of Streptococcus mutans (S ...

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  • Orthodontic wires and its corrosion—The specific case

    2015-3-1 · Copper–nickel–titanium alloys. Copper–nickel–titanium (CuNiTi) alloys consist of nickel, titanium, copper, and some chromium. These wires became available on the market in the mid-1990s. The addition of copper to the alloy enhances the thermal-reactive properties of the wire and makes it highly resistant to permanent deformation. 1

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  • Dental Surgery - JSciMed Central

    2017-7-13 · [15]. An alternative definition“ A direct structural and functional connection between ordered, living bone and the surface of a load-carrying implant” [16], was followed a somewhat more complicated one: ”A continuing, structural and functional co-existence, possibly in a …

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  • Materials | Free Full-Text | Additive Manufacturing ...

    On the metal side, the ability to combine different metals in different layers would open new potential, for example, by adding functional possibility through bi-metal parts for certain implants and medical devices . Sheet lamination devices are quite rare, and there are only two different vendors in the market: metal-based Fabrisonic and paper-based Mcor, which seems to be in receivership status.

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  • Polymers | Free Full-Text | Recent Advances in

    In 2016, the first fully bio-based coumarin containing polybenzoxazine was synthesized using umbelliferone, furfurylamine, and formaldehyde as renewable resources. Froimowicz and coworkers demonstrated three different synthetic approaches—the solventless method being the most ecofriendly method . Due to the incorporation of a furfurylamine moiety a “cooperative activation effect” was …

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  • Additive manufacturing of soft magnets for electrical ...

    2020-12-1 · They designed a fully additively manufactured 6/4 pole switched reluctance machine for a flywheel system by multimaterial printing of the iron core, windings, and insulation. The printing process involved the use of pastes, extruded as in FDM printing, which were subsequently sintered together as in selective laser sintering techniques . These pastes were composed of ceramic and metallic materials like copper …

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  • Hybrid Triboelectric Nanogenerators: From Energy ...

    The polytetrafluoroethylene (PTFE) film as triboelectric material attached to the board can contact fully with Cu electrodes secured on the inner walls of each chamber. The EMG part consisted of two pairs of magnets embedded in the shakable block and two pairs of copper coils installed on the outer walls of …

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  • Componentized Direct-Drive Electric Generator

    2019-10-1 · Increasing electric-machine air-gap flux density reduces the effective air-gap area with associated reduction of physical size, amount of copper magnet wire, and amount of electrical steel for a ...

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  • Multi‐Material 3D and 4D Printing: A Survey - Rafiee ...

    2020-4-30 · The foils were joined by ultrasonic welding using a machine that mechanically vibrates the welding head at 20 kHz. In the work of Bisadi et al., by UAM, the authors lap joined dissimilar sheets of 5083 Al alloy and commercially pure copper method. It was shown that joint defects appear at very low or high welding temperatures.

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  • Hybrid Triboelectric Nanogenerators: From Energy ...

    Energy collection ways using solar energy, wave, wind, or mechanical energy have attracted widespread attention for small self-powered electronic devices with low power consumption, such as sensors, wearable devices, electronic skin, and implantable devices. Among them, triboelectric nanogenerator (TENG) operated by coupling effect of triboelectrification and electrostatic induction has ...

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  • VCE - Virginia Tech

    2020-3-11 · VCE - Virginia Tech

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  • International Journal of Oral and Dental Health |

    2017-2-11 · International Journal of Oral and Dental Health is an open access journal that highlights the advances in oral health in detail. IJODH is an archive for the information on Biomechanics and Clinical Dentistry, Dental Anesthesia, Dental Pulp Stem Cells and Replacement Therapy, Digital Dentistry, Odontology, Forensic Odontology, General Dentistry, Implant Biomechanics, Operative Dentistry, Oral ...

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  • IOPscience

    2020-4-30 · The foils were joined by ultrasonic welding using a machine that mechanically vibrates the welding head at 20 kHz. In the work of Bisadi et al., by UAM, the authors lap joined dissimilar sheets of 5083 Al alloy and commercially pure copper method. It was shown that joint defects appear at very low or high welding temperatures.

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  • Multi‐Material 3D and 4D Printing: A Survey - Rafiee ...

    2015-5-13 · LaminaHeat LLC (Greenville, SC) has demonstrated heated composite tooling and structures using its PowerFilm and PowerFabric materials. PowerFilm is a thin layer of carbon fiber (CF) insulated with a polymer and incorporating copper contacts that efficiently converts electricity into heat. Though only 100 microns thick, it can generate up to 10 ...

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  • IntechOpen - Open Science Open Minds | IntechOpen

    2020-12-1 · 1. Introduction. In recent years, there has been a growing need for high specific power electrical machines for a wide range of applications including transportation [] (e.g. hybrid/electric traction, aerospace, marine) and renewable power generation, especially from wind.More electric drone and all-electric passenger aircraft [] pose challenges, with extensive requirements in terms of ...

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  • Heated composites | CompositesWorld

    2015-10-21 · The SLM system comprises of an fibre laser, which can operate up to 1 kW depending on the laser module installed in the system. 1 The beam focus is controlled by the galvanometer and the movement of the beam on the build table is controlled by F-theta lens. For building a part, a powder layer of 20–100 μm thickness is spread over the table.

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  • UNT Digital Library

    2021-6-28 · The UNT Digital Library is a centralized repository for the rich collections held by the libraries, colleges, schools, and departments at the University of North Texas.

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  • Siemens | USA | Siemens USA

    Google's free service instantly translates words, phrases, and web pages between English and over 100 other languages.

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  • Google Translate

    2020-3-11 · VCE - Virginia Tech

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  • VCE - Virginia Tech

    2020-10-19 · Singapore-based 3D printing company Structo is set to begin deliveries for 1 million 3D printed nasopharyngeal (NP) testing swabs this week to help in the fight against the COVID-19.. Working in collaboration with authorities and healthcare professionals in Singapore, the dental 3D printer manufacturer is scaling up to deliver over 1 million pre-sterilised NP testing swabs each week to fulfil ...

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  • The latest 3D printing efforts against Covid-19 - TCT

    2015-10-21 · The SLM system comprises of an fibre laser, which can operate up to 1 kW depending on the laser module installed in the system. 1 The beam focus is controlled by the galvanometer and the movement of the beam on the build table is controlled by F-theta lens. For building a part, a powder layer of 20–100 μm thickness is spread over the table.

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  • Laser and electron‐beam powder‐bed additive

    PDF. , Preface. The 4th International Conference on New Energy and Future Energy System (NEFES 2019) was held from July 21st to 24th, 2019 in Macau, China. The technical program comprised four plenary speakers, forty invited speakers, eight oral presentation …

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  • IOP Conference Series: Earth and Environmental

    2018-4-30 · The purpose of this article is to review the evolution of dental implant surgery from a traditional approach to a computer-aided one. Implant surgery using CAD/CAM surgical templates has become widely used, and now, a new technology, dynamic navigation, is gaining popularity. We aim to review both technologies as well as their advantages and disadvantages.

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  • Dental Implant Surgery: From Conventional to Guided

    Mercury is a naturally occurring trace metalloid element and known neurotoxin with atomic symbol Hg, atomic number 80, and atomic weight 200.59. Mercury has been used in manufacturing, as well as in dental and medical equipment, fertilizers, and pesticides. It is characterized as a heavy, silvery-white metallic liquid at room temperature that is odorless.

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  • Mercury | Hg - PubChem

    2013-2-5 · This paper proposes an overview of waste-to-energy conversion by gasification processes based on thermal plasma. In the first part, basic aspects of the gasification process have been discussed: chemical reaction in gasification, main reactor configuration, chemical conversion performances, tar content in syngas and performances in function of the design and the operation conditions ...

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  • ESTETICA™ E70/E80 Vision Get in touch with ... - KaVo

    2017-8-4 · The relative spatial position of the prime mover (e.g., turbine) is fixed. An example of pure hydrodynamics is the conversion of flow energy in turbines in hydroelectric power plants. In oil hydraulics, we deal mostly with the fluid working in a confined system, that is, …

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  • Lecture 1 INTRODUCTION TO HYDRAULICS AND

    2020-1-1 · E-PBF, also commercially known as electron beam melting (EBM), is another metal 3D printing technique. As the name suggests, electron beam energy is used to melt the metal powder during the process (Parthasarathy et al., 2010).The entire process has to take place in a vacuum chamber due to the usage of electron beam as the energy source.

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  • 3D printing of metals in rapid prototyping of

    Welcome to Lupine Publishers. Lupine Publishers is one of the world’s largest open access publisher of peer-reviewed, fully peer reviewed journals.Launched with an intention of openness of original research publication, we are passionate about working with the global academic community to promote scholarly research articles to the world. With the help of our academic authors and Editors ...

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  • Lupine Publishers | Open Access Journals Publishers

    2019-10-1 · Download this article in PDF format. Wind turbines larger than 6 MW are becoming common, particularly for offshore installations, where consolidating several smaller wind turbines into one large ...

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  • Componentized Direct-Drive Electric Generator

    2013-2-5 · This paper proposes an overview of waste-to-energy conversion by gasification processes based on thermal plasma. In the first part, basic aspects of the gasification process have been discussed: chemical reaction in gasification, main reactor configuration, chemical conversion performances, tar content in syngas and performances in function of the design and the operation conditions ...

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  • Waste Gasification by Thermal Plasma: A Review

    Apparatus incorporating a movable dispensing head provided with a supply of material which solidifies at a predetermined temperature, and a base member, which are moved relative to each other along 'X,' 'Y,' and 'Z' axes in a predetermined pattern to create three-dimensional objects by building up material discharged from the dispensing head onto the base member at a controlled rate.

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  • US5121329A - Apparatus and method for creating

    2 天前 · In spite of the efforts of responsible Jack Russell breeders to rid the breed of all genetic problems, some disorders still pop up from time to time. This article shows you discusses some of the more common problems found in the breed. Please understand, however, that this is not an all-inclusive list, and it shouldn’t […]

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  • Castable ceramics dentistry training - SlideShare

    Fresh water - relatively pure, with few dissolved salts Most is tied up in glaciers, ice caps, and aquifers The majority (97.5%) of Earth's water resides in the oceans and is too salty to drink or use for irrigation. Only 2.5% is considered fresh water, water that is relatively pure and free from salts. lakes, rivers, streams, and inland wetlands

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  • Micro dc motors for Endodontics - FAULHABER

    With a diameter of 15 mm and a length of just 24 mm, the 1524 series micro dc motors used in the handpieces of the endo system were easy to integrate. Thanks to their high power density, the motors are not only compact but also light. They weigh just 18 g, which is …

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  • How a Gas Turbine Works | GE Gas Power

    2021-6-30 · The fast-revolving generator magnet creates a powerful magnetic field that lines up the electrons around the copper coils and causes them to move. The movement of these electrons through a wire is electricity. Fast fact: The GE 7F.05 gas turbine generates 225 MW, equivalent to 644,000 horsepower, or the power of 644 Formula One cars.

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  • Materials | Free Full-Text | Functional Coatings for ...

    Dental plaque and a biofilm are regarded as the main contributing factors of periodontal diseases and dental caries. White spot lesions (WSL) or carious demineralization are prevalent unwanted side-effects of orthodontic treatment [8,9].Based on the dental literature, orthodontic treatment with fixed appliances may increase plaque accumulation and a heightened amount of Streptococcus mutans (S ...

    Get Price
  • FAULHABER Drive Systems

    2019-3-26 · GE Additive Education Program. Jessica Hughes, a teacher at Hyde Park School in Cincinnati, has been part of the AEP since it launched in 2017 and is a passionate STEM advocate. Jessica is on a mission through her ‘Girls 3D Print Club’ to encourage as many female students as possible to get hands on with 3D printing technology.

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  • Chapter 7 Reduction Gears and Related Equipment

    Open Access journals are the major source of knowledge for young and aspiring generations who are keen in pursuing a career in sciences. This system provides easy access to networks of scientific journals.Authors that contribute their scholarly works to Open Access journals gain remarkable reputation as the research scholarly explore these works extensively.

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  • GE Additive Education Program | GE Additive

    2 天前 · International Journal of Minerals, Metallurgy and Materials (IJMMM, ISSN 1674-4799, CN 11-5787/TF, monthly, started in 1994, formerly known as Journal of University of Science and Technology Beijing) is an international journal devoted to publishing original research articles (and occasional invited reviews) on all aspects of minerals processing, physical metallurgy, process metallurgy, and ...

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  • Free Access to Scientific Journals - Open Access Journals

    Copper and copper alloy plates. There are two main types of commonly used copper and copper alloy sheets, copper T2 and brass H62. Copper T2 is the most commonly used pure copper. It has a purple appearance and is also called copper. It has high electrical and thermal conductivity, good corrosion resistance and formability.

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  • International Journal of Minerals, Metallurgy and

    2021-1-25 · The basement membrane (BM) is a special type of extracellular matrix and presents the major barrier cancer cells have to overcome multiple times to …

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