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Journal articles on the topic '3D device'

Author: Grafiati

Published: 6 September 2023

Last updated: 31 July 2025

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1

Cheon, Jeonghyeon, and Seunghyun Kim. "Fabrication and Demonstration of a 3D-printing/PDMS Integrated Microfluidic Device." Recent Progress in Materials 4, no. 1 (2021): 1. http://dx.doi.org/10.21926/rpm.2201002.

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3D printing is an attractive method to fabricate microfluidic devices due to (1) its fast and simple process without specialized equipment and cleanroom environment, and (2) its capability to create complex 3D structures. Combined with Polydimethylsiloxane (PDMS), it can be used to develop various microfluidic devices taking advantage of both 3D printing and PDMS. In this paper, we investigated a Digital Light Processing (DLP) 3D printer to fabricate 3D printing/PDMS integrated microfluidic devices. We used it to fabricate both a master mold for the PDMS process and a substrate containing pneu

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Ray, Tyler R. "(Invited) 3D-Printed Epidermal Microfluidic Systems for the Collection and Analysis of Sweat." ECS Meeting Abstracts MA2023-01, no. 34 (2023): 1895. http://dx.doi.org/10.1149/ma2023-01341895mtgabs.

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An emerging class of wearable devices integrates microfluidic lab-on-chip designs with low-modulus materials, colorimetric assays, and electrochemical sensors to support the real-time, non-invasive analysis of sweat. Such skin-interfaced microfluidic systems offer powerful capabilities for personalized assessment of health, nutrition, and wellness through the non-invasive, real-time analysis of sweat. Initially simple systems of microfluidic channels, current devices comprise sophisticated networks channels, valves, and reservoirs with some embodiments employing multilayer design strategies. W

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Kanai, Satoshi, Takayuki Shibata, and Takahiro Kawashima. "Feature-Based 3D Process Planning for MEMS Fabrication." International Journal of Automation Technology 8, no. 3 (2014): 406–19. http://dx.doi.org/10.20965/ijat.2014.p0406.

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With the fast growth of the market forMEMS (Micro-Electro-Mechanical Systems) devices, Computer-Aided Design (CAD) and Computer-Aided Process Planning (CAPP) systems for MEMS are essential for the appropriate division of labor between MEMS design and fabrication. Although several CAD systems for MEMS devices are commercially available, CAPP systems for MEMS are still underdeveloped, and few systems have been investigated. The purpose of this study is to prototype a CAPP system for MEMS for non-expert MEMS designers. MEMS device geometry, a complex layered structure made of multiple materials,

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Etxebarria-Elezgarai, Jaione, Maite Garcia-Hernando, Lourdes Basabe-Desmonts, and Fernando Benito-Lopez. "Precise Integration of Polymeric Sensing Functional Materials within 3D Printed Microfluidic Devices." Chemosensors 11, no. 4 (2023): 253. http://dx.doi.org/10.3390/chemosensors11040253.

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This work presents a new architecture concept for microfluidic devices, which combines the conventional 3D printing fabrication process with the stable and precise integration of polymeric functional materials in small footprints within the microchannels in well-defined locations. The approach solves the assembly errors that normally occur during the integration of functional and/or sensing materials in hybrid microfluidic devices. The method was demonstrated by embedding four pH-sensitive ionogel microstructures along the main microfluidic channel of a complex 3D printed microfluidic device.

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Sejor, Eric, Tarek Debs, Niccolo Petrucciani, et al. "Feasibility and Efficiency of Sutureless End Enterostomy by Means of a 3D-Printed Device in a Porcine Model." Surgical Innovation 27, no. 2 (2020): 203–10. http://dx.doi.org/10.1177/1553350619895631.

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Objective. The aim of this study is to present a 3-dimensional (3D)-printed device to simply perform abdominal enterostomy and colostomy. Summary Background Data. Enterostomy and colostomy are frequently performed during abdominal surgery. 3D-printed devices may permit the creation of enterostomy easily. Methods. The device was designed by means of a CAD (computer-aided design) software, Rhinoceros 6 by MC Neel, and manufactured using 3D printers, Factory 2.0 by Omni 3D and Raise 3D N2 Dual Plus by Raise 3D. Colostomy was scheduled on a human cadaver and on 6 Pietrain pigs to test the device a

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Matsuyama, So, Tomoaki Sugiyama, Toshiyuki Ikoma, and Jeffrey S. Cross. "Fabrication of 3D Graphene and 3D Graphene Oxide Devices for Sensing VOCs." MRS Advances 1, no. 19 (2016): 1359–64. http://dx.doi.org/10.1557/adv.2016.151.

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ABSTRACTDetection of volatile organic compounds (VOCs) emitted from cancerous tumor cells in exhaled human breath allows for early diagnosis of various types of cancers. 3D graphene with a large surface area is considered a suitable material for creating novel sensitive VOCs sensors. In this study, 3D graphene and 3D graphene oxide were synthesized from graphene oxide suspension, hydroquinone and formaldehyde by employing polymerization and reduction. The capability of VOC gas sensing was evaluated by measuring the electrical current response in flowing N2 gas over a range of concentrations of

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Tian, Xiaoyong, Ming Yin, and Dichen Li. "3D printing: a useful tool for the fabrication of artificial electromagnetic (EM) medium." Rapid Prototyping Journal 22, no. 2 (2016): 251–57. http://dx.doi.org/10.1108/rpj-09-2014-0122.

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Purpose Artificial electromagnetic (EM) medium and devices are designed with integrated micro- and macro-structures depending on the EM transmittance performance, which is difficult to fabricate by the conventional processes. Three-dimensional (3D) printing provides a new solution for the delicate artificial EM medium. This paper aims to first review the applications of 3D printing in the fabrication of EM medium briefly, mainly focusing on photonic crystals, metamaterials and gradient index (GRIN) devices. Then, a new design and fabrication strategy is proposed for the EM medium based on the

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Gaudestad, Jan, and Antonio Orozco. "Magnetic Field Imaging for 3D applications." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2014, DPC (2014): 001937–65. http://dx.doi.org/10.4071/2014dpc-tha13.

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The challenges that 3D integration present to Failure Analysis require the development of new Fault Isolation techniques that allows for non-destructive, true 3D failure localization. By injecting a current in the device under test (DUT), the current generates a magnetic field around it and this magnetic field is detected by a sensor above the device. Magnetic field imaging (MFI) is a natural candidate for 3D Fault Isolation of complex 3D interconnected devices. This is because the magnetic field generated by the currents in the DUT passes unaffected through all materials used in device fabric

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van der Elst, Louis, Camila Faccini de Lima, Meve Gokce Kurtoglu, Veda Narayana Koraganji, Mengxin Zheng, and Alexander Gumennik. "3D Printing in Fiber-Device Technology." Advanced Fiber Materials 3, no. 2 (2021): 59–75. http://dx.doi.org/10.1007/s42765-020-00056-6.

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Abstract Recent advances in additive manufacturing enable redesigning material morphology on nano-, micro-, and meso-scale, for achieving an enhanced functionality on the macro-scale. From non-planar and flexible electronic circuits, through biomechanically realistic surgical models, to shoe soles individualized for the user comfort, multiple scientific and technological areas undergo material-property redesign and enhancement enabled by 3D printing. Fiber-device technology is currently entering such a transformation. In this paper, we review the recent advances in adopting 3D printing for dir

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Zhang, Bing, Wei Chen, Yanjie Wu, Kang Ding, and Rongqiang Li. "Review of 3D Printed Millimeter-Wave and Terahertz Passive Devices." International Journal of Antennas and Propagation 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/1297931.

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The 3D printing technology is catching attention nowadays. It has certain advantages over the traditional fabrication processes. We give a chronical review of the 3D printing technology from the time it was invented. This technology has also been used to fabricate millimeter-wave (mmWave) and terahertz (THz) passive devices. Though promising results have been demonstrated, the challenge lies in the fabrication tolerance improvement such as dimensional tolerance and surface roughness. We propose the design methodology of high order device to circumvent the dimensional tolerance and suggest spec

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Ansari, Sameer, Cynthia B. Zevallos, Mudassir Farooqui, et al. "Optimal Woven EndoBridge (WEB) Device Size Selection Using Automated Volumetric Software." Brain Sciences 11, no. 7 (2021): 901. http://dx.doi.org/10.3390/brainsci11070901.

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Introduction: Selecting the appropriate Woven EndoBridge (WEB) device sizing for the treatment of wide-neck bifurcation aneurysms (WNBAs) remains challenging. The aim of this study was to evaluate different volumetric-based imaging methodologies to predict an accurate WEB device size selection to result in a successful implantation. Methods: All consecutive patients treated with WEB devices for intracranial aneurysms from January 2019 to June 2020 were included. Aneurysm dimensions to calculate aneurysm volumes were measured using three different modalities: automated three-dimensional (3D) di

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Voráčová, Ivona, Jan Přikryl, Jakub Novotný, et al. "3D printed device for epitachophoresis." Analytica Chimica Acta 1154 (April 2021): 338246. http://dx.doi.org/10.1016/j.aca.2021.338246.

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Wang, L., R. Hu, and X. Guo. "Backside Lithography in 3D Device." ECS Transactions 60, no. 1 (2014): 251–56. http://dx.doi.org/10.1149/06001.0251ecst.

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Natarajan, Govindarajan, and James N. Humenik. "3D Ceramic Microfluidic Device Manufacturing." Journal of Physics: Conference Series 34 (April 1, 2006): 533–39. http://dx.doi.org/10.1088/1742-6596/34/1/088.

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Klein, Allan L., and Christine L. Jellis. "3D Imaging of Device Leads." JACC: Cardiovascular Imaging 7, no. 4 (2014): 348–50. http://dx.doi.org/10.1016/j.jcmg.2013.12.006.

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Wang, Zhenzhen, and Yan Yang. "Application of 3D Printing in Implantable Medical Devices." BioMed Research International 2021 (January 12, 2021): 1–13. http://dx.doi.org/10.1155/2021/6653967.

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3D printing technology is widely used in the field of implantable medical device in recent decades because of its advantages in high precision, complex structure, and high material utilization. Based on the characteristics of 3D printing technology, this paper reviews the manufacturing process, materials, and some typical products of 3D printing implantable medical devices and analyzes and summarizes the development trend of 3D printed implantable medical devices.

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Gan, Yong, Jing Ru Zhong, and Ning Sun. "Mechanical Structure Optimal Design of 3D Non-Destructive Measurement System." Advanced Materials Research 199-200 (February 2011): 1378–82. http://dx.doi.org/10.4028/www.scientific.net/amr.199-200.1378.

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It discusses the measurement principle and the mechanical structure of 3D non-destructive measurement device for the homogeneous entity. The measurement project and its operating process is discussed. The basic operation principle and components of this measurement device are pointed out. Based on the modern design theory, optimization design, dynamical design, the mechanical structure of the device is analyzed and improved for assuring measurement precision, structural intensity, and vibration characteristic of the device. The primary experiment devices and their precision are designed and an

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Maile, S., S. Kobel, M. Munz, T. Engleder, J. M. Steinacker, and F. Capanni. "3D-based visual physical activity assessment of children." Current Directions in Biomedical Engineering 1, no. 1 (2015): 462–65. http://dx.doi.org/10.1515/cdbme-2015-0111.

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AbstractIn the last decades, an alarming rise in prevalence of childhood overweight and obesity has been observed which is partly attributed to a lack in physical activity and has started to become a public health concern. Therefore, the necessity for accurate physical activity assessment has become more and more apparent. Physical activity can be assessed objectively using accelerometers or combined devices. The application of such devices is sometimes complex and wearing the device may influence the behaviour of the test person. Therefore, assessment without any worn device would be an advan

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Furubayashi, Yutaka, Takafumi Tanehira, Kei Yonemori, Nobuhide Seo, and Shinichiro Kuroki. "3D Integration of Si-Based Peltier Device onto 4H-SiC Power Device." Materials Science Forum 858 (May 2016): 1107–11. http://dx.doi.org/10.4028/www.scientific.net/msf.858.1107.

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We propose 3-D integration of Peltier device onto a power device. In order to transport a heat from the power device, as a suitable material of the Peltier device, silicon was adopted because of its high Seebeck coefficient, high thermal conductivity, and applicability to semiconductor process. Bulk Si-based Peltier devices with conventional shape showed an active thermal transport over a Joule heat at the operation current less than 5 A. 3-D integration of 4H-SiC-based Schottky barrier diodes and Si-based film Peltier device, separated by intrinsic SiC layer, was realized by using conventiona

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Lin, Haisong, Yichao Zhao, Shuyu Lin, et al. "A rapid and low-cost fabrication and integration scheme to render 3D microfluidic architectures for wearable biofluid sampling, manipulation, and sensing." Lab on a Chip 19, no. 17 (2019): 2844–53. http://dx.doi.org/10.1039/c9lc00418a.

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We devise a simple, scalable, and low-cost “CAD-to-3D Device” fabrication and integration scheme, which renders 3D and complex microfluidic architectures for wearable biofluid sampling, manipulation, and sensing.

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Silva, Raphaela K. S., Sakandar Rauf, Ming Dong, Liang Chen, Hakan Bagci, and Khaled N. Salama. "3D Concentric Electrodes-Based Alternating Current Electrohydrodynamics: Design, Simulation, Fabrication, and Potential Applications for Bioassays." Biosensors 12, no. 4 (2022): 215. http://dx.doi.org/10.3390/bios12040215.

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Two-dimensional concentric asymmetric microelectrodes play a crucial role in developing sensitive and specific biological assays using fluid micromixing generated by alternating current electrohydrodynamics (ac-EHD). This paper reports the design, simulation, fabrication, and characterization of fluid motion generated by 3D concentric microelectrodes for the first time. Electric field simulations are used to compare electric field distribution at the electrodes and to analyze its effects on microfluidic micromixing in 2D and 3D electrodes. Three-dimensional devices show higher electric field p

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Issartel, Paul, Florimond Guéniat, Tobias Isenberg, and Mehdi Ammi. "Analysis of Locally Coupled 3D Manipulation Mappings Based on Mobile Device Motion." Presence: Teleoperators and Virtual Environments 26, no. 1 (2017): 66–95. http://dx.doi.org/10.1162/pres_a_00287.

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We examine a class of techniques for 3D object manipulation on mobile devices, in which the device’s physical motion is applied to 3D objects displayed on the device itself. This “local coupling” between input and display creates specific challenges compared to manipulation techniques designed for monitor-based or immersive virtual environments. Our work focuses specifically on the mapping between device motion and object motion. We review existing manipulation techniques and introduce a formal description of the main mappings under a common notation. Based on this notation, we analyze these m

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Kim, Ji Hwan, Hee Seung Yang, Seung Hyun Han, et al. "Application of a 3D-Printed Writing–Typing Assistive Device in Patients with Cervical Spinal Cord Injury." Applied Sciences 12, no. 18 (2022): 9037. http://dx.doi.org/10.3390/app12189037.

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The current study aimed to assess the effects of a customized three-dimensional (3D) printed writing and typing assistive device in patients with cervical spinal cord injury who presented with severe hand dysfunction. Three patients with cervical spinal cord injury who presented with severe hand dysfunction were included in the analysis. The patients’ writing and typing abilities were evaluated after using the silicon assistive device made from a 3D-printed frame for 4 weeks. Patient discomfort and issues were evaluated. Customized 3D-printed writing and typing assistive devices were developed

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Kubicki, Wojciech, Aung Thiha, Tymon Janisz, et al. "A 3D printed microfluidic device for centrifugal droplet generation." Rapid Prototyping Journal 30, no. 11 (2024): 357–68. https://doi.org/10.1108/rpj-05-2024-0215.

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Purpose This study aims to use an additive process for the first time to develop a microfluidic device that uses centrifugal technique for precise and repeatable generation of microdroplets. Droplets have versatile applications in life sciences, but so far centrifugal devices for their production have been made mainly using standard subtractive techniques. This study focused on evaluating the applicability of 3D printing technology in the development of centrifugal microfluidic devices and investigating their properties and future applications. Design/methodology/approach First, the background

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Menon, Ankitha, Abdullah Khan, Neethu T. M. Balakrishnan, et al. "Advances in 3D Printing for Electrochemical Energy Storage Systems." Journal of Material Science and Technology Research 8 (November 30, 2021): 50–69. http://dx.doi.org/10.31875/2410-4701.2021.08.7.

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In the current scenario, energy generation is relied on the portable gadgets with more efficiency paving a way for new versatile and smart techniques for device fabrication. 3D printing is one of the most adaptable fabrication techniques based on designed architecture. The fabrication of 3D printed energy storage devices minimizes the manual labor enhancing the perfection of fabrication and reducing the risk of hazards. The perfection in fabrication technique enhances the performance of the device. The idea has been built upon by industry as well as academic research to print a variety of batt

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Ishida, Yoshiki, Daisuke Miura, Taira Miyasaka, and Akikazu Shinya. "Dimensional Accuracy of Dental Casting Patterns Fabricated Using Consumer 3D Printers." Polymers 12, no. 10 (2020): 2244. http://dx.doi.org/10.3390/polym12102244.

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Consumer 3D printers have improved considerably due to the evolution of additive manufacturing. This study aimed to examine the accuracy of consumer printers in dental restoration. Cylindrical patterns mimicking a full crown were created and enlarged from 100% to 105% of the original size. Two types of consumer 3D printers, including a fused deposition modeling (FDM) device and a stereolithography (SLA) device, and two types of dental 3D printers, including a multi-jet device and an SLA device, were used to fabricate the patterns. Then, the outer and inner diameters and depths, and surface rou

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Seo, Sang-Woo, Woo-Sug Jung, and Yejin Kim. "3D Hand Motion Generation for VR Interactions Using a Haptic Data Glove." Multimodal Technologies and Interaction 8, no. 7 (2024): 62. http://dx.doi.org/10.3390/mti8070062.

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Recently, VR-based training applications have become popular and promising, as they can simulate real-world situations in a safe, repeatable, and cost-effective way. For immersive simulations, various input devices have been designed and proposed to increase the effectiveness of training. In this study, we developed a novel device that generates 3D hand motion data and provides haptic force feedback for VR interactions. The proposed device can track 3D hand positions using a combination of the global position estimation of ultrasonic sensors and the hand pose estimation of inertial sensors in

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Nikić, Marta, Aleksandar Opančar, Florian Hartmann, et al. "Micropyramid structured photo capacitive interfaces." Nanotechnology 33, no. 24 (2022): 245302. http://dx.doi.org/10.1088/1361-6528/ac5927.

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Abstract Optically driven electronic neuromodulation devices are a novel tool in basic research and offer new prospects in medical therapeutic applications. Optimal operation of such devices requires efficient light capture and charge generation, effective electrical communication across the device’s bioelectronic interface, conformal adhesion to the target tissue, and mechanical stability of the device during the lifetime of the implant—all of which can be tuned by spatial structuring of the device. We demonstrate a 3D structured opto-bioelectronic device—an organic electrolytic photocapacito

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Pinho, Ludmila A. G., Ana Luiza Lima, Yong Chen, et al. "Customizable Three-Dimensional Printed Earring Tap for Treating Affections Caused by Aesthetic Perforations." Pharmaceutics 16, no. 1 (2024): 77. http://dx.doi.org/10.3390/pharmaceutics16010077.

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This work aimed to develop a three-dimensional (3D) wearable drug-loaded earring tap to treat affections caused by aesthetic perforations. The initial phase involved a combination of polymers to prepare filaments for fused deposition modeling (FDM) 3D printing using a centroid mixture design. Optimized filament compositions were used in the second phase to produce 3D printed earring taps containing the anti-inflammatory naringenin. Next, samples were assessed via physicochemical assays followed by in vitro skin permeation studies with porcine ear skin. Two filament compositions were selected f

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Taraev, A. Yu, and R. V. Ushakov. "Rationale for the use of a novel structure device for mandible fractures fixation." Stomatology for All / International Dental review, no. 1(98) (March 22, 2022): 4–11. http://dx.doi.org/10.35556/idr-2021-1(98)4-11.

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The finite element method in the Ansys Workbench system was used to solve static problems of the theory of elasticity, simulating the stress-strain state of the “bone-fixing device” systems under the action of the chewing, temporal, lateral pterygoid, and medial pterygoid muscles. The stability of each of the considered fixing devices was quantitatively assessed, the relative displacements of bone fragments, equivalent stresses in the bone and fixing devices were calculated and compared, and the contact pressure between bone fragments was investigated. It is shown that with the considere

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Taraev, A. Yu, and R. V. Ushakov. "Rationale for the use of a novel structure device for mandible fractures fixation." Stomatology for All / International Dental review, no. 1(98) (March 22, 2022): 4–11. http://dx.doi.org/10.35556/idr-2022-1(98)4-11.

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The finite element method in the Ansys Workbench system was used to solve static problems of the theory of elasticity, simulating the stress-strain state of the “bone-fixing device” systems under the action of the chewing, temporal, lateral pterygoid, and medial pterygoid muscles. The stability of each of the considered fixing devices was quantitatively assessed, the relative displacements of bone fragments, equivalent stresses in the bone and fixing devices were calculated and compared, and the contact pressure between bone fragments was investigated. It is shown that with the considere

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Messer, Dolores, Michelle S. Svendsen, Anders Galatius, et al. "Measurement error using a SeeMaLab structured light 3D scanner against a Microscribe 3D digitizer." PeerJ 9 (August 20, 2021): e11804. http://dx.doi.org/10.7717/peerj.11804.

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Background Geometric morphometrics is a powerful approach to capture and quantify morphological shape variation. Both 3D digitizer arms and structured light surface scanners are portable, easy to use, and relatively cheap, which makes these two capturing devices obvious choices for geometric morphometrics. While digitizer arms have been the “gold standard”, benefits of having full 3D models are manifold. We assessed the measurement error and investigate bias associated with the use of an open-source, high-resolution structured light scanner called SeeMaLab against the popular Microscribe 3D di

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Jung, Haejoon, and In-Ho Lee. "Performance Analysis of Three-Dimensional Clustered Device-to-Device Networks for Internet of Things." Wireless Communications and Mobile Computing 2017 (2017): 1–10. http://dx.doi.org/10.1155/2017/9628565.

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Internet of things (IoT) is a smart technology that connects anything anywhere at any time. Intelligent device-to-device (D2D) communication, in which devices will communicate with each other autonomously without any centralized control, is an integral part of the Internet of Things (IoT) ecosystem. Thus, for D2D applications such as local file sharing or swarm sensing, we study communications between devices in proximity in ultra-dense urban environments, where devices are stacked vertically and dispersed in the horizontal plane. To reflect the spatiotemporal correlation inherently embedded i

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Nielsen, Anna V., Michael J. Beauchamp, Gregory P. Nordin, and Adam T. Woolley. "3D Printed Microfluidics." Annual Review of Analytical Chemistry 13, no. 1 (2020): 45–65. http://dx.doi.org/10.1146/annurev-anchem-091619-102649.

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Traditional microfabrication techniques suffer from several disadvantages, including the inability to create truly three-dimensional (3D) architectures, expensive and time-consuming processes when changing device designs, and difficulty in transitioning from prototyping fabrication to bulk manufacturing. 3D printing is an emerging technique that could overcome these disadvantages. While most 3D printed fluidic devices and features to date have been on the millifluidic size scale, some truly microfluidic devices have been shown. Currently, stereolithography is the most promising approach for ro

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Fadzli, Fazliaty Edora, Muhammad Nur Affendy Nor’a, and Ajune Wanis Ismail. "3D Display for 3D Telepresence: A Review." International Journal of Innovative Computing 12, no. 1 (2021): 1–7. http://dx.doi.org/10.11113/ijic.v12n1.318.

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Over the years, people have tried to advance 3D display technology and researchers as well as developers have created different innovations in recent decades. there are many other different types of 3D display technology that can be classified into stereoscopic, auto stereoscopic, holographic and volumetric 3D displays. This paper, however, discusses the 3D display technology that have been implemented in the telepresence system, which can be divided into two main devices, projectors and head mounted display (HMD). From these two devices, the 3D display technology using projector devices are o

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Kamalasanan, V., Y. Feng, and M. Sester. "IMPROVING 3D PEDESTRIAN DETECTION FOR WEARABLE SENSOR DATA WITH 2D HUMAN POSE." ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences V-4-2022 (May 18, 2022): 219–26. http://dx.doi.org/10.5194/isprs-annals-v-4-2022-219-2022.

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Abstract. Collisions and safety are important concepts when dealing with urban designs like shared spaces. As pedestrians (especially the elderly and disabled people) are more vulnerable to accidents, realising an intelligent mobility aid to avoid collisions is a direction of research that could improve safety using a wearable device. Also, with the improvements in technologies for visualisation and their capabilities to render 3D virtual content, AR devices could be used to realise virtual infrastructure and virtual traffic systems. Such devices (e.g., Hololens) scan the environment using ste

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Abubakar, Adamu, Teddy Mantoro, Sardjoeni Moedjiono, et al. "A Support Vector Machine Classification of Computational Capabilities of 3D Map on Mobile Device for Navigation Aid." International Journal of Interactive Mobile Technologies (iJIM) 10, no. 3 (2016): 4. http://dx.doi.org/10.3991/ijim.v10i3.5056.

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3D map for mobile devices provide more realistic view of an environment and serves as better navigation aid. Previous research studies shows differences in 3D maps effect on acquiring of spatial knowledge. This is attributed to the differences in mobile device computational capabilities. Crucial to this, is the time it takes for 3D map dataset to be rendered for a required complete navigation task. Different findings suggest different approach on solving the problem of time require for both in-core (inside mobile) and out-core (remote) rendering of 3D dataset. Unfortunately, studies on analyti

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Prakash Khoja, Om, Yatendra Kumar Porwal, Sohan K. Sharma, and Rajeev Bagarhatta. "OUTCOME OF ASD CLOSURE WITH DEVICE SIZE BASED ON PRE PROCEDURE 3D TRANSTHORACIC ECHOCARDIOGRAPHY MEASUREMENTS AND ITS COMPARISON WITH 2D TRANSTHORACIC AND 2D TRANSESOPHAGEAL ECHOCARDIOGRAPHY: AN OBSERVATIONAL ANALYSIS AT A TERTIARY CARE HOSPITAL IN JAIPUR." International Journal of Advanced Research 10, no. 01 (2022): 1079–88. http://dx.doi.org/10.21474/ijar01/14148.

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Introduction: For safe percutaneous ASD device closure, the rims surrounding the defect should be appropriate to allow the device to firmly hang onto the atrial septum. Two-dimensional transthoracic echocardiography (2D TTE) is adequate in detecting these defects, but the images obtained can lack the detail necessary to precisely measure their size, shape, and location. Three-dimensional transthoracic echocardiography (3D TTE) provides enhanced visualization of the defect in the majority of patients. The primary objective of the study is to estimate the proportion of cases where device was dep

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Galík, Ján, Daniel Varecha, Mário Drbúl, Rudolf Madaj, and Viera Konstantová. "Design and optimization of the construction of a mobile disinfection chamber for small communication devices and small objects." Production Engineering Archives 29, no. 2 (2023): 201–15. http://dx.doi.org/10.30657/pea.2023.29.24.

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Abstract This manuscript aims to familiarise readers with the development of a device for the construction of a mobile disinfection chamber for small communication devices and small objects. The conceptual design and the material of the new device play essential roles in the design process of a new device. The manuscript presents concepts based primarily on previous experience and different perspectives. The concept design is created in the 3D modelling program CREO Parametric 8.0. A multi-criteria team evaluation determined the most suitable version of the idea. For dimensioning and shape ada

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Haidekker, Mark A. "Building a 3D Computed Tomography Scanner From Surplus Parts." Biomedical Instrumentation & Technology 48, no. 2 (2014): 142–51. http://dx.doi.org/10.2345/0899-8205-48.2.142.

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Computed tomography (CT) scanners are expensive imaging devices, often out of reach for small research groups. Designing and building a CT scanner from modular components is possible, and this article demonstrates that realization of a CT scanner from components is surprisingly easy. However, the high costs of a modular X-ray source and detector limit the overall cost savings. In this article, the possibility of building a CT scanner with available surplus X-ray parts is discussed, and a practical device is described that incurred costs of less than $16,000. The image quality of this device is

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Gomez, Houari Cobas, Bianca Oliveira Agio, Jéssica Gonçalves da Silva, et al. "LTCC 3D MICROMIXERS FOR NON-MISCIBLE FLUIDS MICROEMULSION GENERATION." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2016, CICMT (2016): 000096–102. http://dx.doi.org/10.4071/2016cicmt-wa15.

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Abstract The present work shows a ceramics microfluidic device for non-miscible fluids microemulsion generation using 3D serpentine micromixers. The technology used for device fabrication was Low Temperature Cofired Ceramics (LTCC) which allows us for complex, high temperature and pressure resistant 3D microfluidic devices. The proposed device aims to obtain microemulsion with controlled drop size, low dispersion index and high production volumes using Top-Down approach. Previous simulation work had showed 3D serpentine as one of the best structures for rapid mixing due the chaotic advection g

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Tejkl, Adam, and Petr Kavka. "Automated Low Investment Cost Evaporometers (ALICEs)." Applied Sciences 11, no. 11 (2021): 4986. http://dx.doi.org/10.3390/app11114986.

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Evaporation is an important part of the hydrological cycle. This paper discusses the materials and methods we used to develop an evaporometer, which measures evaporation from the water surface, like a drop in water level. The main problem is that there are relatively small differences in the levels measured directly in the field. During the research, we tested conductive filament and stainless steel as measuring electrode materials. We used 3D printing in combination with low-cost open-source electronics and a hand-etched circuit board to make a device which measures the free water surface lev

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Rodriguez-Garcia, Aida, Jacqueline Oliva-Ramirez, Claudia Bautista-Flores, and Samira Hosseini. "3D In Vitro Human Organ Mimicry Devices for Drug Discovery, Development, and Assessment." Advances in Polymer Technology 2020 (August 10, 2020): 1–41. http://dx.doi.org/10.1155/2020/6187048.

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The past few decades have shown significant advancement as complex in vitro humanized systems have substituted animal trials and 2D in vitro studies. 3D humanized platforms mimic the organs of interest with their stimulations (physical, electrical, chemical, and mechanical). Organ-on-chip devices, including in vitro modelling of 3D organoids, 3D microfabrication, and 3D bioprinted platforms, play an essential role in drug discovery, testing, and assessment. In this article, a thorough review is provided of the latest advancements in the area of organ-on-chip devices targeting liver, kidney, lu

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Tan, Shaun, Meng-Chen Shih, Yongli Lu, et al. "Spontaneous formation of robust two-dimensional perovskite phases." Science 388, no. 6747 (2025): 639–45. https://doi.org/10.1126/science.adr1334.

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The two-dimensional on three-dimensional (2D/3D) perovskite bilayer heterostructure can improve the stability and performance of perovskite solar cells. We show that the 2D/3D perovskite stack in a device evolves dynamically during its end-of-life decomposition. Initially phase-pure 2D interlayers can evolve differently, resulting in different device stabilities. We show that a robust 2D interlayer can be formed using mixed solvents to regulate its crystallinity and phase purity. The resulting 2D/3D devices achieved 25.9% efficiency and had good durability, retaining 91% of their initial perfo

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Domingo-Roca, Roger, Benjamin Tiller, Joseph Jackson, and James Windmill. "Bio-inspired 3D-printed piezoelectric device for acoustic frequency selection." Sensors and Actuators A: Physical 271 (March 1, 2018): 1–8. https://doi.org/10.1016/j.sna.2017.12.056.

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Development of 3D-printed devices, sensors, and actuators has become increasingly popular in recent years due to low cost, rapid production, and device personalization. This personalization process allows the development of devices with unique physical properties and phenomena that enhance the desired properties of the 3D-printed part. Biomimetics is a technique used to develop engineered devices, as organisms present in nature can provide smart and simple solutions to complex problems across a wide range of applications. Locust ears have a simple tympanic membrane with varying thicknesses tha

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Asgari, Reza. "Challenges in 3D Inspection of Micro Bumps Used in 3D Packaging." International Symposium on Microelectronics 2012, no. 1 (2012): 000542–47. http://dx.doi.org/10.4071/isom-2012-wa12.

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2.5D/3D devices are the next major packaging technologies, driven by the need for more functionality, lower power consumption and smaller footprint. Many device manufacturers are devoting capital to develop their own processes and some are already shipping devices such as FPGA (Field Programmable Gate Array) on interposers. 3D packages often require hundreds of thousands of I/O per die. Micro Pillar bumps and C4 bumps are the main bump geometries used in 3D packages as their small pitch and size allow the required number of I/Os. Inspecting these bumps throughout the process is critical becaus

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Hasler, O., S. Blaser, and S. Nebiker. "IMPLEMENTATION AND FIRST EVALUATION OF AN INDOOR MAPPING APPLICATION USING SMARTPHONES AND AR FRAMEWORKS." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W17 (November 29, 2019): 135–41. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w17-135-2019.

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Abstract. In this paper, we present the implementation of a smartphone-based indoor mobile mapping application based on an augmented reality (AR) framework and a subsequent performance evaluation in demanding indoor environments. The implementation runs on Android and iOS devices and demonstrates the great potential of smartphone-based 3D mobile mapping. The application includes several functionalities such as device tracking, coordinate, and distance measuring as well as capturing georeferenced imagery. We evaluate our prototype system by comparing measured points from the tracked device with

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Marco-Jiménez, Francisco, Ximo Garcia-Dominguez, Luís García-Valero, and José S. Vicente. "A 3D-Printed Large Holding Capacity Device for Minimum Volume Cooling Vitrification of Embryos in Prolific Livestock Species." Animals 13, no. 5 (2023): 791. http://dx.doi.org/10.3390/ani13050791.

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Although many devices have been developed to reduce sample volume, with an explosion of methods appearing in the literature over the last decade, commercially available devices with simultaneous vitrification of a larger number of embryos are scarce, with the apparent gap for their use in prolific livestock species. In this study, we investigated the effectiveness of a new three-dimensional (3D)-printed device that combines minimum volume cooling vitrification with simultaneous vitrification of a larger number of rabbit embryos. Late morulae/early blastocysts were vitrified with the open Cryoe

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Papatheodorou, Spyridon-Andreas, Dimitra Houhoula, Sotirios Magoulas, et al. "Development of a 3D Microfluidic Analytical Device for the Detection of Pathogenic Bacteria in Commercial Food Samples with Loop-Mediated Isothermal Amplification." Acta Microbiologica Hellenica 69, no. 1 (2024): 41–49. http://dx.doi.org/10.3390/amh69010006.

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Traditional methods of detecting foodborne pathogens take several days to produce the required results. Furthermore, various molecular techniques (e.g., PCR) that also produce reliable results in the detection of pathogenic bacteria have been introduced, but the cost–time ratio required does not allow them to be considered a substantial solution to this specific problem. Three-dimensional (3D) printing technology provides the ability to design and manufacture microfluidic analytical devices using conventional 3D printers, which, in combination with colorimetric loop-mediated isothermal amplifi

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Courtemanche, Jean, Samson King, and David Bouck. "Engineering Novel Lab Devices Using 3D Printing and Microcontrollers." SLAS TECHNOLOGY: Translating Life Sciences Innovation 23, no. 5 (2018): 448–55. http://dx.doi.org/10.1177/2472630318766858.

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The application of 3D printing and microcontrollers allows users to rapidly engineer novel hardware solutions useful in a laboratory environment. 3D printing is transformative as it enables the rapid fabrication of adapters, housings, jigs, and small structural elements. Microcontrollers allow for the creation of simple, inexpensive machines that receive input from one or more sensors to trigger a mechanical or electrical output. Bringing these technologies together, we have developed custom solutions that improve capabilities and reduce costs, errors, and human intervention. In this article,

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