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  • Coating Rejuvenation: New Repair Technology for

    Today’s advanced high pressure turbine blades in aero and aero-derivative turbines feature thin walls (<.030 inches), complex internal geometries, three dimensional (3D) aerodynamic shapes, multiple protective coatings and complex film cooling schemes.

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  • Structural repair of wind turbine blades:

    2020-10-5 · Three‐dimensional (3‐D) finite element models of structural (scarf) repair of wind turbine blade, including the composite patch, adhesive, coating and parent composite structures is developed. Computational studies of the effect of the scarf angle, thickness of the adhesive layer and the availability of voids in the adhesive on the stress ...

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  • Three-dimensional printing of metals for biomedical ...

    2019-6-1 · Three-dimensional (3D) printing technology has received great attention in the past decades in both academia and industry because of its advantages such as customized fabrication, low manufacturing cost, unprecedented capability for complex geometry, and short fabrication period. 3D printing of metals with controllable structures represents a state-of-the-art technology that enables the ...

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  • Advanced smart biomaterials and constructs for hard

    2018-10-22 · Based on three-dimensional (3D)-printing technologies, four-dimensional (4D)-printed hierarchy scaffolds were created using a series of novel SMPs, demonstrating excellent biocompatibility and ...

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  • Laser technoLogy for repair and functionaLization

    2021-6-29 · Repair and Additive Manufacturing Damage or normal wear on turbine components, machine parts, tools, molds and components can prove enormously costly. The parts affected often have to be replaced, in which case repair proves a viable option. Given the material and accuracy requirements as well as the safety considerations

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  • What is 3D printing? How does a 3D printer work?

    3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printed object is achieved using additive processes. In an additive process an object is created by laying down successive layers of material until the object is created. Each of these layers can be seen as a ...

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  • Ultrafast lasers—reliable tools for advanced materials ...

    2014-4-11 · Materials processing using ultrafast lasers, lasers that emit light pulses shorter than a few tens of picoseconds, was first reported in 1987 by Srinivasan et al. 1, Küper and Stuke. 2 They ...

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  • 3D printing injects future into medical industry ...

    2021-6-30 · Kang Xuan, general manager of Becoming Digital Dental, a Shenzhen-based startup specializing in digital dental applications, said 3D-printing technology is reshaping China's dentistry industry. The world's most populous nation, China faces severe shortage of dental professionals, especially in rural areas, and 3D printing can help ease the situation, because it provides more cost …

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  • 21 Amazing Advancements in Modern Dentistry

    21 Amazing Advancements in Modern Dentistry. By Dr. George Ghidrai. The field of dentistry is constantly evolving and changing to better suit patient needs. If you haven't visited a dentist for some time, you may be surprised to discover that there are a lot of new options to keep teeth healthy …

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  • Clinical applications of 3D printing technology in hip joint

    Three-dimensional techniques and materials that have been mentioned in relevant articles are demonstrated in Table 2. Three-Dimensional Printed Bony Model Appreciation of the abnormality in the hip joint may not always be obtained on a 2D screen. A 3D-printed model provides visual and tactile sensation of the impaired pelvic

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  • Three-dimensional periodontal tissue regeneration

    2020-2-3 · Periodontal tissue is a specialized three-dimensional multicellular structure composed of cementum, periodontal ligament (PDL) and alveolar bone …

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  • Digital three-dimensional visualization of intrabony ...

    2020-12-1 · Further refinement of individual ROIs was done with hand segmentation tools (Paint brush, Erase, Scissors). The same process was repeated for the teeth as well (Fig. 1). Three-dimensional polygon models were generated from the ROIs and were exported as stereolithographic (.stl) files.

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  • Three-Dimensional Structural Evaluation of a Gas

    2014-9-18 · 'Three-Dimensional Structural Evaluation of a Gas Turbine Engine Rotor.' Proceedings of the ASME Turbo Expo 2014: ... The identification of these critical locations is needed to help with the repair of the existing rotors and to improve and extend the operational/service life of these rotors.

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  • Three-Dimensional Bioprinting for Regenerative

    2015-6-29 · Three-dimensional bioprinting of tissues and biological structures has been proposed as a promising alternative to address some of these key challenges. It enables precise manufacture of various biomaterials with complex 3D architectures, while being compatible with multiple cell sources and being customizable to patient-specific needs.

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  • ADENSYS – Producing cartridge products for dental

    2021-5-26 · One of the well-known ways to produce porous scaffolds or special three-dimensional (3D) micro-nanostructures is using the 3D printing technique. This technique requires a suitable computerized model of the scaffold using computer-aided design software or the computed tomography. The 3D printer fabricates a product by using a digital file and creates a layer-by-layer physical sample.

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  • Application of 3D Bioprinters for Dental Pulp

    2021-4-24 · Three-dimensional (3D) culture of mesenchymal stem cells has become an important research and development topic. However, comprehensive analysis of human dental pulp-derived mesenchymal stem cells (DPSCs) in 3D-spheroid culture remains unexplored. Thus, we evaluated the cellular characteristics, multipotent differentiation, gene expression, and related-signal transduction …

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  • Three-dimensional Spheroid Culture Enhances

    2021-5-12 · METALLURGICAL FAILURE ANALYSIS OF STEAM TURBINE, COMPRESSOR, AND HOT GAS EXPANDER COMPONENTS . David Dowson . Service Engineer (Materials & Repairs) Elliott Group . Jeannette, PA, USA . David Dowson is a Service Engineer with . the Elliott Group, in Jeannette, Pennsylvania. He has been involved with material related failure analysis,

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  • METALLURGICAL FAILURE ANALYSIS OF STEAM TURBINE ...

    2021-2-22 · being based on complex three-dimensional anatomical structures formed from soft (skin, mucosa and muscle) and hard (craniofacial skeleton and teeth) tissues (Bluteau et al., 2008). The repair and regeneration of bone is a major issue in the OMF field and for the whole human body in general. Bone loss is caused by many diseases (congenital or

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  • L.A Turbine | Rethinking Turboexpanders

    Rely on L.A. Turbine's FX-TURBO Field Service Technicians for repair & service of LAT and other OEM's active magnetic bearing and oil bearing turboexpanders. Global help 24/7/365 at +1 855 398 8726. Request an evaluation or help now https://bit.ly/3fFoPiN. …

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  • Digital Light Processing Based Three-dimensional

    Abstract. An additive manufacturing technology based on projection light, digital light processing (DLP), three-dimensional (3D) printing, has been widely applied in the field of medical products production and development. The precision projection light, reflected by a digital micromirror device of million pixels instead of one focused point ...

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  • Direct Human Cartilage Repair Using Three

    2012-4-18 · In this study, we developed a bioprinting system with simultaneous photopolymerization capable for three-dimensional (3D) cartilage tissue engineering. Poly(ethylene glycol) dimethacrylate (PEGDMA) with human chondrocytes were printed to repair defects in osteochondral plugs (3D biopaper) in layer-by-layer assembly.

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  • Discount China Dental Supply Online Store -

    Studies on the effect of diamond cutting tools on the micro-damage of dental ceramics were investigated [36][37][38] [39] [40][41]. Specific cutting energy rates, cutting speed, material removal ...

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  • (PDF) Cracking of Porcelain Surfaces Arising from

    2019-1-24 · However, to achieve three dimensional, uniform pressures of greater than 1 bar, additional external pressure is required. The most controllable method of achieving this for an infinite variety of different shapes and sizes is by applying a compressed gas into a pressure vessel containing the composite layup.

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  • Composite materials guide: Manufacturing >

    2015-2-14 · However, because of the highly competitive nature of the wind turbine industry, the majority of wind turbine manu-facturers are reluctant to share details of the construction materials with maintenance companies. Therefore, technical expertise has a tremendous weight on blade repair success and effectiveness.4,22 Moreover, repairs are mostly per-

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  • A Damage Assessment for Wind Turbine Blades from

    2014-5-11 · Turbulent and conjugate heat transfer simulation for gas turbine application D. Bohn1 & K. Kusterer2 1Institute of Steam and Gas Turbines, Aachen University, Templergraben 55, D-52056 Aachen, Germany 2B&B-AGEMA GmbH, Jülicher Str. 338, D-52070 Aachen, Germany Abstract Turbulent heat transfer is of significant importance in gas turbine design and

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  • Turbulent and conjugate heat transfer simulation for gas ...

    2020-6-23 · Three-dimensional reconstruction of these pores showed that they formed channels (Fig. 1J) predominantly along the longitudinal direction of collagen fibril bundles. Whether these pores are filled with fluid or may contain organic material such as glycosaminoglycans and/or cell processes is difficult to determine with current FIB-SEM analysis.

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  • Three-dimensional structural interrelations between

    2018-5-28 · Biomimicking hydrogel-based cell culture platforms with physiologically relevant stiffness are powerful tools to modulate the behaviors of stem cells. Herein, the use of fibronectin-conjugated polyacrylamide (PAA) hydrogel biointerface is exploited to modulate the intracellular oxidative stress of human bone marrow derived mesenchymal stem cells (MSCs).

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  • Materializing! What Can Dentists Do With 3D Printers ...

    2019-7-16 · 3D-Printed Tools to Repair Gums and Supporting Tissue. Healthy gums are important for oral health. Unfortunately, it is still quite common for people to have gum problems which, in some cases, need to be treated surgically. 3D-printed surgical guides can be used to help the dentist cut accurately, which is better than free-hand cutting of the gums.

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  • Dental practice equipment | KaVo Dental

    2021-7-5 · Our dental equipment and tools prioritise comfort for practitioners and are designed to accommodate and support a wide range of heights and sizes with maximum comfort and reliability. Our KaVo PHYSIO dentist stools fortifies workflow by offering you an adjustable backrest that is designed to accommodate your specific needs.

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  • Buccal Fat Pad–Derived Stem Cells in Three

    2019-2-1 · Thus, a multitude of alternative sources, including dental tissues, 7–10 skeletal muscle, 11 and adipose tissue, 12–14 have been proposed. Among these recent sources, adipose-derived stem cells (AdSCs) were successfully used in several in vitro, 15–17 in vivo, 18–20 and clinical investigations 21–23 for bone repair.

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  • Three-dimensional longitudinal changes of maxilla

    2017-6-1 · AIM:The purpose of this study was to longitudinally analyse the morphology of maxilla and mandible over time in infants using a three-dimensional (3D) surface scanner. MATERIALS AND METHODS:Seventeen Japanese full-term infants participated in the study. Dental plaster models were fabricated every 3 months from 1 month of age to 12 months.

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  • What is 3D printing? How does a 3D printer work?

    3D printing or additive manufacturing is a process of making three dimensional solid objects from a digital file. The creation of a 3D printed object is achieved using additive processes. In an additive process an object is created by laying down successive layers of material until the object is created. Each of these layers can be seen as a ...

    Get Price
  • Three-dimensional Facial Morphometry of Attractive ...

    2007-11-1 · Objectives: To identify possible esthetic canons in facial size and shape of Italian children. Materials and Methods: The three-dimensional coordinates of 50 facial landmarks (forehead, eyes, nose, cheeks, mouth, jaw, ears) were collected in 220 healthy reference children (4–9 years old) and in 89 “attractive” children of a similar age group selected by a commercial casting organization.

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  • Three-dimensional bioprinting of stem-cell derived

    2018-5-21 · Three-dimensional (3D) bioprinting is a promising tissue engineering field that offers new opportunities to precisely place stem cells within their niches layer-by-layer. This review covers bioprinting technologies, the current development of ‘bio-inks’ and how bioprinting has already been applied to stem-cell culture, as well as their ...

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  • Three-Dimensional Assessment of Facial Appearance ...

    2019-8-28 · Background and ObjectiveObjective assessment of postsurgical facial asymmetry can be difficult, but three-dimensional (3D) imaging techniques have made this possible. The objective of …

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  • Anthropometric Study of Three-Dimensional Facial ...

    2016-10-5 · Objectives To establish the three-dimensional (3D) facial soft tissue morphology of adult Malaysian subjects of the Malay ethnic group; and to determine the morphological differences between the genders, using a non-invasive stereo-photogrammetry 3D camera. Material and Methods One hundred and nine subjects participated in this research, 54 Malay men and 55 Malay women, aged …

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  • Main Clinical Use of Additive Manufacturing (Three ...

    Background and aims: Additive manufacturing or three-dimensional printing is a novel production methodology for producing patient-specific models, medical aids, tools, and implants. However, the clinical impact of this technology is unknown. In this study, we sought to characterize the clinical adoption of medical additive manufacturing in Finland in 2016-2017.

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  • Three-dimensional Micro-culture System for Tooth

    2019-10-30 · Three protocols were compared. The one that sequentially combined the hanging drop and semisolid medium cultures prior to in vivo implantation gave the best results. Indeed, after implantation, teeth developed, showing a well-formed crown, mineralization of …

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  • Three-dimensional Facial Morphometry of Attractive ...

    2007-11-1 · Objectives: To identify possible esthetic canons in facial size and shape of Italian children. Materials and Methods: The three-dimensional coordinates of 50 facial landmarks (forehead, eyes, nose, cheeks, mouth, jaw, ears) were collected in 220 healthy reference children (4–9 years old) and in 89 “attractive” children of a similar age group selected by a commercial casting organization.

    Get Price
  • TGFβ3 secretion by three‐dimensional cultures of

    2015-2-18 · TGFβ3 secretion by three‐dimensional cultures of human dental apical papilla mesenchymal stem cells Rodrigo A. Somoza. ... Much of the interest regarding MSCs relies on the trophic‐mediated repair and regenerative effects observed when they are implanted. TGF ... (two‐dimensional, 2D) towards a three‐dimensional (3D) culture condition, ...

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  • Biomimetic Dentistry: Basic Principles and Protocols

    2020-12-11 · tools on this context. The principles of biomimetic dentistry impose introduction of advanced composite restorative materials in clinical practice, which should more respect the nature and integrity of the tooth tissues. There are biomimetic restorative protocols that dental …

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  • Three-Dimensional Assessment of Facial Appearance ...

    2019-8-28 · Background and ObjectiveObjective assessment of postsurgical facial asymmetry can be difficult, but three-dimensional (3D) imaging techniques have made this possible. The objective of …

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  • Woodpecker Dental Products at Best Price Online ...

    Buy Woodpecker Dental Products. Woodpecker, the biggest ultrasonic scaler manufacturer, owns a maximal production and consumption of ultrasonic scaler in the world.The export volume of LED curing light is also in the leading position. In the past 26 years, Woodpecker has been focused on researching, developing, selling dental equipment.

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  • Three-dimensional human tissue models of wounded

    Three-dimensional human tissue models of wounded skin Methods Mol Biol. 2010 ... and fibroblasts and how HSEs can be modified to characterize the response of the human epithelium during wound repair. The protocols outlined first describe techniques for the generation of human tissues that closely approximate the architectural features ...

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  • Materials | Free Full-Text | Glass–Ceramics in Dentistry ...

    Since glass–ceramics started to be used in dentistry, materials with varied compositions have been developed. Table 1 lists three of the commercially available dental glass–ceramics, i.e., mica–based, leucite–based, lithium disilicate, and ZrO 2 –reinforced lithium silicate glass–ceramics.

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  • Fully automated drones could double wind turbine ...

    2021-7-1 · One of the most important tools they have to open new market is to reduce the bill of material costs. Drawing on an example from Nordex Acciona, the following research note takes a look at their global product sales pipeline, bill of materials reduction trends, global turbine price trends as …

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