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Добірка наукової літератури з теми "3D-SHORE"

Автор: Grafiati

Опубліковано: 11 березня 2023

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Статті в журналах з теми "3D-SHORE"

KUROIWA, Masamitsu, Yuhei MATSUBARA, Yukihiko HASEGAWA, Yasushi ICHIMURA, Ken YOSHIZU, Tomoyoshi KOIZUMI, Masami SANNO, and Naotsugu YAMAMOTO. "3D Morphodynamic Model for Sandy Beach with Shore Reef." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 67, no. 2 (2011): I_531—I_535. http://dx.doi.org/10.2208/kaigan.67.i_531.

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Brounstein, Zachary, Jarrod Ronquillo, and Andrea Labouriau. "3D Printed Chromophoric Sensors." Chemosensors 9, no. 11 (November 9, 2021): 317. http://dx.doi.org/10.3390/chemosensors9110317.

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Eight chromophoric indicators are incorporated into Sylgard 184 to develop sensors that are fabricated either by traditional methods such as casting or by more advanced manufacturing techniques such as 3D printing. The sensors exhibit specific color changes when exposed to acidic species, basic species, or elevated temperatures. Additionally, material properties are investigated to assess the chemical structure, Shore A Hardness, and thermal stability. Comparisons between the casted and 3D printed sensors show that the sensing devices fabricated with the advanced manufacturing technique are more efficient because the color changes are more easily detected.

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Felices, Niño B., and Bryan B. Pajarito. "Effect of Silane-Treated Wollastonite on Mechanical and Thermal Properties of 3D-Printed ABS via Fused Deposition Modeling." Key Engineering Materials 877 (February 2021): 61–66. http://dx.doi.org/10.4028/www.scientific.net/kem.877.61.

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The effect of the addition of epoxysilane-treated wollastonite (ETW) to the mechanical and thermal properties of 3D-printed acrylonitrile butadiene styrene (ABS) via fused deposition modeling (FDM) was investigated. The loading of ETW was varied at 1, 3, and 5wt%. The 3D-printed composites were evaluated by scanning electron microscopy (SEM) tensile test, shore D hardness, differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The addition of ETW increases the tensile strength, elastic modulus, and toughness of ABS by up to 46.6, 56.2, and 53.7 %, respectively. The shore D hardness increases with increasing ETW. Morphological analysis show that this improvement in mechanical properties is a result of the high aspect ratio of the fillers, the uniform dispersion of ETW in the ABS matrix, and the orientation of ETW particles toward the direction of tensile stress. The glass transition temperature (Tg) of the composites increases and the onset of degradation slightly shifted to higher temperature with an increase in filler loading. The addition of ETW to ABS matrix in FDM 3D printing improved the mechanical and thermal properties of ABS.

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Canning, John, Caspar Clark, Monica Dayao, Daniel de LaMela, Michael Logozzo, and Jing Zhao. "Anti-Reflection Coatings on 3D-Printed Components." Coatings 11, no. 12 (December 10, 2021): 1519. http://dx.doi.org/10.3390/coatings11121519.

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The use of anti-reflection coatings on 3D-printed components to reduce both Fresnel reflections and scattering is explored. Two similar photo-initiated acrylic commercial material structures, known as Standard Clear (SC: T~60% @ λ = 800 nm) and VeroClear (VC: T~90% @ λ = 800 nm), used specifically for optical components, are examined. The refractive indices for slab samples~(5 × 5 × 0.7) cm are measured at λ = 650 nm and averaged over the slab area: n(SC)~(1.49 ± 0.04) and n(VC)~(1.42 ± 0.03). Within experimental error, novel Shore D mapping is used to show hardness distribution across the surface flats, with VC slightly harder than SC, where VC = 85.9 ± 0.3 and SC = 84.4 ± 1.3, indicating uniform hardness. A TiO2/MgF2 anti-reflection twin-layer coating is deposited onto one side of an unpolished SC slab and binds well, passing standard peeling and humidity tests. Shore hardness increases to SCCOATED = 87.5 ± 1.5. It is found to reduce the measured Fresnel reflection and surface scatter by~65% without requiring major polishing, paving the way for lower-cost high-quality optics. The demonstration of successful anti-reflection coatings will benefit all 3D-printed component finishes, permitting viable film deposition more broadly.

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Sokolov, Andrei, and Boris Chubarenko. "Numerical simulation of dynamics of sediments disposed in the marine coastal zone of the south-eastern Baltic." Baltica 31, no. 1 (June 15, 2018): 13–23. http://dx.doi.org/10.5200/baltica.2018.31.02.

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Three dumping sites located at the south-eastern part of the Baltic Sea at shallow depths near the shore of the Sambian Peninsula are considered. The first and second ones are located south and north of the Vistula Lagoon inlet, and are used now for disposing dredged material extracted from the Kaliningrad Seaway Canal. The third dumping site is located near the northern shore of the Sambian Peninsula, east of Cape Gvardeyskiy and assigned for disposing the dredged material extracted from the fairway to the Pionerskiy Port located nearby. All three dumping sites are located either in front of or not far from the eroded segments of the shore. The question behind the study is: Is it possible that disposed material is naturally transported from the damping site to the shore and accumulates there to protect it from erosion? A numerical hydrodynamic transport 3D model (MIKE) was used to model sediment transport under different wind actions. The winds with the speed stronger than 15 m/s wash out disposed material completely from the dumping site and spread it over a wide area with a negligible layer thickness. Winds of about 7–10 m/s transport material along the shore at a distance of a few kilometres; that may be useful for shore protection. Winds with a speed of about 5 m/sec or less do not lead to resuspension of sediments. The first location of the dumping site looks very ineffective for potential protection of the shore nearby. On the other hand, the second and especially the third locations are favourable for the transport of disposed material to the shore; the most favourable conditions are at onshore or alongshore currents.

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Zhang, Jingxin, Dongfang Liang, and Hua Liu. "An efficient 3D non-hydrostatic model for simulating near-shore breaking waves." Ocean Engineering 140 (August 2017): 19–28. http://dx.doi.org/10.1016/j.oceaneng.2017.05.009.

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Fauzhan Warsito, Indhika, René Machts, Stefan Griebel, Patrique Fiedler, and Jens Haueisen. "Influence of silver/silver chloride electroless plating on the Shore hardness of polyurethane substrates for dry EEG electrodes." Current Directions in Biomedical Engineering 7, no. 2 (October 1, 2021): 9–12. http://dx.doi.org/10.1515/cdbme-2021-2003.

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Abstract Dry electrodes enable a shorter preparation time for infant EEG. Since infant skin is more sensitive than adult skin, soft electrodes are required to reduce the mechanical stress for this sensitive skin. Thus, soft electrodes are crucial for eventual repetitive and long-term use like in neonatal intensive care units. A biocompatible polyurethane (PU) can be produced in low hardness resulting in a soft and flexible electrode substrate. Silver/silver chloride (Ag/AgCl) electroless plating provides a conductive, electrochemically stable coating but the process may alter the mechanical properties of the electrode substrate. In this study, we assess the hardness of PU material before and after Ag/AgCl plating. The test sample design for Shore hardness measurement is based on ISO 7619-1:2010. Sample production consists of a 3D print master model, silicone molding, PU casting, and finally electroless plating. UPX 8400-1 (Sika AG, Switzerland) is used for the sample substrates. Test samples are produced with 7 different Shore hardness (range A40-A95) and 14 samples (each hardness: 1 uncoated and 1 coated). The hardness measurements are carried out with a lever-operated test stand Shore hardness tester model with a digital hardness tester (TI-AC with HDA 100-1, KERN &SOHN GmbH, Germany).. It is shown that there is a hardness increase (Shore A) due to Ag/AgCl coating with a grand average of 1.1±0.7 (p<0.05). The largest increase of 2.1±0.2 is seen on the initial lowest Shore hardness sample (Shore hardness: 43.4±0.1). The absolute increase of hardness due to the Ag/AgCl coating decreases with increasing substrate hardness. It is concluded that there is no strong hardness increase of PU substrates due to Ag/AgCl plating. Therefore, the material is suitable as a soft electrode for repetitive and long-term use in infant applications.

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Luna, Carlos B. B., Danilo D. Siqueira, Edcleide M. Araújo, and Renate M. R. Wellen. "Annealing efficacy on PLA. Insights on mechanical, thermomechanical and crystallinity characters." MOMENTO, no. 62 (January 1, 2021): 1–17. http://dx.doi.org/10.15446/mo.n62.89099.

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Poly (lactic acid) (PLA) is widely used biodegradable thermoplastic in the additive manufacturing, mainly on manufactured products through 3D printing. However, PLA is highly fragile and presents low impact strength; hence improvements on this way are industrially and technologically important. Aiming to develop proper methodology for higher PLA performance, this work investigated the effects of thermal annealing on the mechanical properties (impact, tensile, Shore D hardness), heat deflection temperature (HDT), Vicat softening temperature (VST) and crystallinity (X-ray diffraction) of PLA. Injected specimens were annealed in greenhouses at 70, 80, 90 and 100 °C. Annealing at 70 °C was not effective, without verified significant changes. On the other hand, annealing at 80, 90 and 100 °C provided crystalline peaks in DRX, indicating development of structural organization. Expressive results were achieved, at 90 °C, for impact strength, HDT, VST, Shore D hardness and tensile strength, related to non-annealed PLA. Provided results in this work have scientific and technological importance, since the mechanical and thermomechanical properties of PLA were improved using a simple methodology which may render higher performance products mainly for the 3D printing industry of PLA.

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Hsieh, Fan-Chun, Chien-Yao Huang, and Yen-Pei Lu. "Wettability and Surface Roughness of Parylene C on Three-Dimensional-Printed Photopolymers." Materials 15, no. 12 (June 11, 2022): 4159. http://dx.doi.org/10.3390/ma15124159.

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The use of poly-(para-chloro-xylylene) (Parylene C) in microelectromechanical systems and medical devices has increased rapidly. However, little research has been conducted on the wettability and surface roughness of Parylene C after being soaked in solutions. In this study, the contact angle and surface roughness (arithmetic average of roughness) of Parylene C on three-dimensional (3D)-printed photopolymer in 10% sodium hydroxide, 10% ammonium hydroxide, and 100% phosphate-buffered saline (PBS) solutions were investigated using a commercial contact angle measurement system and laser confocal microscope, respectively. The collected data indicated that 10% ammonium hydroxide had no major effect on the contact angle of Parylene C on a substrate, with a Shore A hardness of 50. However, 10% sodium hydroxide, 10% ammonium hydroxide, and 100% PBS considerably affected the contact angle of Parylene C on a substrate with a Shore A hardness of 85. Substrates with Parylene C coating exhibited lower surface roughness than uncoated substrates. The substrates coated with Parylene C that were soaked in 10% ammonium hydroxide exhibited high surface roughness. The aforementioned results indicate that 3D-printed photopolymers coated with Parylene C can offer potential benefits when used in biocompatible devices.

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Sikora, Piotr, Adam Gnatowski, and Rafał Gołębski. "Tests of mechanical properties of semicrystalline and amorphous polymeric materials produced by 3D printing." MATEC Web of Conferences 254 (2019): 06003. http://dx.doi.org/10.1051/matecconf/201925406003.

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The article presents the results of tests of physical properties of samples from semi-crystalline and amorphous polymeric materials produced using 3D printing. Samples were produced using 3D printing technology on the SIGNAL -ATMAT printer. The following polymeric materials were used to make the samples: TPU thermoplastic polyurethane elastomer, ABS acrylonitrile-butadiene-styrene copolymer, Laywood, PET ethylene terephthalate, PLA poly (lactic acid). The materials were tested for their mechanical properties. The hardness was determined by the Shore method and the ball-pressing method. The tensile strength also was determined. The research samples were subjected to visual analysis on a Keyence microscope to analyze the breakthrough site.

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Більше джерел

Дисертації з теми "3D-SHORE"

Sie, Sin-ye, and 謝欣曄. "MICRO RESERVOIR SHORE - From linear boundary to 3D interface." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/74921244498838030535.

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碩士
東海大學
建築學系
99
The Dajia River, raising so many lives within it’s basin, in which including man, and it is well known as abundant water source. The scenery along the riverside is breath-taking whenever it comes to Autumn. But now, everything has faded with time. The riverbed now exposes, which has become a small haggard valley. The prosperity now only lies in the old memory. The Dajia River, existing for thousands of years, has undergone a fierce change during these 50 years. What makes the whole thing changed? Father My father, 73 years old, was born in Shihcheng, He used to play along the Dajia River when he was a little boy. He moved to Tungshih for junior high, and had lived there until finished high school. And our family had moved back to Tungshih when I was in junior high. The huge change during these years had a profound effect on my father, especially he can no longer play the water along the Dajia River. To me, after the 921 earthquake, Tungshih had become the start of Taiwan No.8 Provincial Highway because of the C.C.R. [Central-Cross Road] was built. The area of Dajia River had been though a series of developments and had become the entrance of C.C.R.. Riverside park, gas station, McDonald’s, Seven-Eleven shown up. But after C.C.R. was shut down, the development of riverside area became very abrupt .The development gradually moved to the old rail road on the east, which had become Tungfung bicycle green Path. The development of the west side of Tungshih stopped, the over estimate had left lots of open spaces in the west side of Tungshih. The connection between Tungshih and Dajia River had been suddenly cut off , making people away form the river. I re-examine the riverside area, using the dike as a medium to interfere the connection between the river and the city in a micro aspect. And to influence the problems Dajia River has facing now in a great view. The problems such as water shortage and deposited silt. These problems have negative effect to the reservoir. This project is trying to propose a new type of micro reservoir, reducing the negative effect to a certain extent, to deal with the issues of water and silt.

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Zucchelli, Mauro. "Towards Brain Tissue Microstructure Characterization using Diffusion MRI." Doctoral thesis, 2016. http://hdl.handle.net/11562/939131.

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La risonanza magnetica in diffusione è una delle uniche tecniche di imaging in grado di dare informazioni sulla struttura del cervello umano in-vivo. Tramite tecniche matematiche chiamate modelli di ricostruzione, dal segnale di diffusione, \`e possibile ricavare la funzione di distribuzione di probabilità dello spostamento delle molecole d'acqua in ogni voxel, detto propagatore. Dal propagatore è possibile ricavare informazioni riguardanti l'orientazione dei fasci di fibre neuronali, la densità di tali fibre e il calibro assonale, tramite il calcolo di particolari indici.Lo scopo principale di questa tesi è la caratterizzazione di tali indici, e in particolare la loro validazione tramite, sia simulazioni al computer, sia dati in-vivo. In particolare ci siamo concentrati sugli indici calcolati utilizzando tre modelli di ricostruzione: il DTI, il 3D-SHORE e il MAPMRI. Il primo contributo di questa tesi riguarda il calcolo e il confronto dei valori degli indici del propagatore per tali modelli. Il secondo contributo della tesi è lo studio della variazione degli indici rispetto alle principali variazioni microstrutturali, tipiche della materia bianca. Nella terza parte della tesi abbiamo proposto un nuovo modello di ricostruzione in grado di dare risultati pi\`u accurati nel caso di incrocio di fibre. Un'accurata rappresentazione degli incroci è fondamentale visto che rappresentano la maggior parte della materia bianca del cervello umano.L'ultimo contributo della tesi è lo sviluppo di un nuovo modello di ricostruzione del propagatore in grado di modellare acquisizioni con gradienti a tempi di diffusione multipli. I risultati mostrano come gli indici del propagatore siano estremamente sensibili a variazioni microstrutturali della densità e dell'orientazione degli assoni della materia bianca. Gli indici sono risultati invece insensibili a variazioni del diametro assonale, a causa del lento decadimento del segnale, che richiederebbe acquisizioni effettuate con campi magnetici estremamente elevati. I nuovi modelli di ricostruzione proposti hanno dato eccellenti risultati sia nella modellazione degli incroci di fibre che del segnale a tempi di diffusione multipli.
Diffusion magnetic resonance imaging is one of the only non-invasive imaging technique which is able to provide information on the human brain structure in-vivo.From the diffusion signal, using mathematical techniques called reconstruction models, it is possible to retrieve the probability density function of the water molecules displacement, or ensemble average propagator (EAP). From the EAP, it is possible to calculate a series of indices which provide information regarding the fiber orientation, fiber density, and the average diameter of the axons. The main aim of this thesis is the characterization of these indices, and, in particular, their validation. In order to characterize the indices, we take advantage of computer simulation of diffusion in different media, as well as human brain acquisition. In particular, we focused on the EAP indices calculated using three EAP models: the DTI, the 3D-SHORE, and the MAPMRI. The first contribution of this thesis is the developing and the comparison of the values of the indices for the different models.The second contribution of the thesis is the study of the variation of the indices with respect to the principal microstructural parameters which characterize the white matter. The third contribution of the thesis is the proposal of a new reconstruction model designed to reconstruct accurately the EAP in the case of crossing fibers. The fourth contributions is the developing of a new tensor model, which is able to capture the dependence on the timing parameters of the diffusion signal.Results show the sensibility of the EAP-derived indices to microstructural variations such as the orientation dispersion of the axons and the density of the fibers. Diameter axons variation, on the contrary, are not measurable by the EAP indices because of the slow signal decay, which would require extremely high magnetic fields to be measured. The new reconstruction models proposed provide excellent results in the modeling of crossing fibers and multiple diffusion times, respectively.

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Частини книг з теми "3D-SHORE"

Sukhinov, Alexander, Alexander Chistyakov, and Sofya Protsenko. "3D Model of Wave Impact on Shore Protection Structures and Algorithm of Its Parallel Implementation." In Communications in Computer and Information Science, 3–14. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-64616-5_1.

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Fick, Rutger, Demian Wassermann, Gonzalo Sanguinetti, and Rachid Deriche. "An Analytical 3D Laplacian Regularized SHORE Basis and Its Impact on EAP Reconstruction and Microstructure Recovery." In Computational Diffusion MRI, 151–65. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-11182-7_14.

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Тези доповідей конференцій з теми "3D-SHORE"

Puntous, H., J. L. Boelle, P. Ricarte, and F. Adler. "3D Fullwave Modelling for On-shore Acquisition Feasibility." In 79th EAGE Conference and Exhibition 2017. Netherlands: EAGE Publications BV, 2017. http://dx.doi.org/10.3997/2214-4609.201700768.

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Steeghs, P., V. P. Vandeweijer, J. A. C. Meekes, B. F. Paap, and M. P. E. de Kleine. "High Resolution 3D Seismic Survey Off-shore the Netherlands." In EAGE Shallow Anomalies Workshop. Netherlands: EAGE Publications BV, 2014. http://dx.doi.org/10.3997/2214-4609.20147439.

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Ershov, A., A. Eidinov, and A. Popova. "Development of 3D Geomechanical Model: Case Study from One Off-Shore Sakhalin Field." In SPE Russian Petroleum Technology Conference. Society of Petroleum Engineers, 2017. http://dx.doi.org/10.2118/187836-ms.

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Shimizu, Takuzo, Takahiro Kumagai, and Akira Watanabe. "Improved 3-D Beach Evolution Model Coupled with the Shoreline Model (3D-SHORE)." In 25th International Conference on Coastal Engineering. New York, NY: American Society of Civil Engineers, 1997. http://dx.doi.org/10.1061/9780784402429.220.

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Ershov, A., A. Eidinov, and A. Popova. "Development of 3D Geomechanical Model: Case Study from One Off-Shore Sakhalin Field (Russian)." In SPE Russian Petroleum Technology Conference. Society of Petroleum Engineers, 2017. http://dx.doi.org/10.2118/187836-ru.

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Salazar-Quinonez, F., R. A. Abd-Alhameed, A. Cowley, and D. Bladen. "UHF Radio Extender System for Ship to Shore Communications Using 3D SBR for Positioning." In 2021 Global Congress on Electrical Engineering (GC-ElecEng). IEEE, 2021. http://dx.doi.org/10.1109/gc-eleceng52322.2021.9788338.

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Wei, Xingjian, Abhinav Bhardwaj, Li Zeng, and Zhijian Pei. "Experimental Investigation of Stratasys J750 PolyJet Printer: Effects of Finish Type and Shore Hardness on Surface Roughness." In ASME 2019 14th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/msec2019-2998.

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Abstract The J750 PolyJet printer is the newest model of full-color and multi-material 3D printer from Stratasys. Currently, limited information is available about the effects of control factors on surface roughness of parts printed by this printer. In this study, the effects of two control factors, finish type and Shore hardness, on surface roughness are investigated. The results suggest that both control factors significantly affect surface roughness. Specifically, samples printed with glossy finish have lower surface roughness than those with matte finish, and larger value of Shore hardness leads to lower surface roughness. These results would be valuable to researchers and practitioners who use the J750 3D printer.

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Wei, Xingjian, Ketan Thakare, Li Zeng, and Zhijian Pei. "Experimental Investigation of Stratasys J750 PolyJet Printer: Effects of Finish Type and Shore Hardness on Dimensional Accuracy." In ASME 2019 14th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/msec2019-2999.

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Abstract The J750 PolyJet printer is the newest model of full-color and multi-material 3D printer from Stratasys. Currently, limited information is available about the effects of control factors on dimensional accuracy of parts printed by this printer. In this study, the effects of two control factors, finish type and Shore hardness, on dimensional accuracy are investigated. The results suggest that both control factors significantly affect dimensional accuracy. Specifically, samples printed with glossy finish exhibit more accurate dimensions than those with matte finish, and larger Shore hardness value leads to better dimensional accuracy. These results would be valuable to researchers and practitioners who use the J750 3D printer.

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Deng, Shi, Shixiao Fu, Torgeir Moan, Wei Wei, and Zhen Gao. "Hydro-Elastic Analysis of a Floating Bridge in Waves Considering the Effect of the Hydrodynamic Coupling and the Shore Sides." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78738.

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A new numerical method, which is based on three-dimensional (3D) potential flow theory and finite element method (FEM), is used to predict the wave-induced hydroelastic responses of flexible floating bridges. The floating bridge is discretized into several modules based on the positions of the pontoons which are connected by elastic beams. The motion equations of the entire floating structure are established according to the six degrees of freedom (6DOF) motions of each rigid module coupled with the dynamics of the elastic beams. The hydrodynamics loads on each module are considered as external loads and simultaneously applied. The method is extended to take into account the shore side effect, which is obtained from the 3D potential flow theory and considered as a hydrodynamic boundary condition. The effects of inclination of shore side on the responses of the bending moment, horizontal and vertical displacements of the pontoon and their distribution along the bridge are investigated. The results show that the displacement response increase with an increasing steepness of the shore side.

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Sellami, Takwa, Sana Jelassi, Abdel Moumen Darcherif, Hanen Berriri, and Mohamed Faouizi Mimouni. "3D Finite Volume model for free and forced vibrations computation in on-shore wind turbines." In 2016 7th International Conference on Sciences of Electronics, Technologies of Information and Telecommunications (SETIT). IEEE, 2016. http://dx.doi.org/10.1109/setit.2016.7939850.

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