Suresh M. Chaware, Vaibhav Bagaria, and Abhay Kuthe
Indian Journal of Plastic Surgery, Vol 42, Iss 01, Pp 085-093 (2020)
ankylosis, cad, rapid prototyping, temporomandibular joint, total joint replacement, Surgery, and RD1-811
Anthropometric variations in humans make it difficult to replace a temporomandibular joint (TMJ), successfully using a standard “one-size-fits-all” prosthesis. The case report presents a unique concept of total TMJ replacement with customized and modified TMJ prosthesis, which is cost-effective and provides the best fit for the patient. The process involved in designing and modifications over the existing prosthesis are also described. A 12-year- old female who presented for treatment of left unilateral TMJ ankylosis underwent the surgery for total TMJ replacement. A three-dimensional computed tomography (CT) scan suggested features of bony ankylosis of left TMJ. CT images were converted to a sterolithographic model using CAD software and a rapid prototyping machine. A process of rapid manufacturing was then used to manufacture the customized prosthesis. Postoperative recovery was uneventful, with an improvement in mouth opening of 3.5 cm and painless jaw movements. Three years postsurgery, the patient is pain-free, has a mouth opening of about 4.0 cm and enjoys a normal diet. The postoperative radiographs concur with the excellent clinical results. The use of CAD/CAM technique to design the custom-made prosthesis, using orthopaedically proven structural materials, significantly improves the predictability and success rates of TMJ replacement surgery.
Przemysław KRAKOWSKI, Józef JONAK, Robert KARPIŃSKI, and Łukasz JAWORSKI
Applied Computer Science, Vol 15, Iss 3, Pp 65-72 (2019)
Rapid Prototyping, surgery planning, fractures, Information technology, T58.5-58.64, Electronic computers. Computer science, and QA75.5-76.95
Orthopaedic trauma surgery is a complex surgical speciality in which anatomy, physiology and physics are mixed. Proper diagnosing and based on that planning and performing surgery is of crucial matter. This article presents usefulness of 3D reconstruction in diagnostics and surgical planning. It focuses on utility of computed tomography reconstruction in trauma surgery. Moreover, two cases in which this technique was used is described. Complex 3D reconstruction proved its usefulness and in future it may become a modality of choice for planning complex trauma procedures in which standard implants and approaches are insufficient.
Lorenzo Invidia, Silvio Lucio Oliva, Andrea Palmieri, Luigi Patrono, and Piercosimo Rametta
Journal of Communications Software and Systems, Vol 15, Iss 2, Pp 138-149 (2019)
BLE, Embedded System, Internet of Things, MQTT, Rapid Prototyping, STM32 ODE, Computer software, and QA76.75-76.765
The Internet of Things (IoT) is characterized by many technologies, standards, tools and devices for a wide range of application fields and often, for the end-users (makers and developers), is hard to orientate in an equally wide range of offers from various manufacturers. In recent years, the Bluetooth Low Energy (BLE) communication protocol is achieving a large portion of the market, thanks to its low-power and low-cost orientation and its pervasiveness in mobile devices, like smartphones. For these reasons, BLE is increasingly used in IoT-oriented Wireless Personal Area Networks (WPAN), where a small set of devices arranged in star topology network and connected to a smartphone and a Wi-Fi gateway, can cover a large number of monitoring and controlling use case scenarios. This work presents the ST’s STM32 Open Development Environment (ODE), a complete suite of hardware and software tools representing a reference point for end-users willing to create BLE-based star topology networks for a wide range of applications. Through a simple use case in a smart home context, it is shown how all provided tools can be used to fast prototype applications addressing all user requirements.
Randy Sepriyanda, Rika Perdana Sari, and Yuli Fitrisia
Jurnal Komputer Terapan, Vol 5, Iss 2, Pp 13-21 (2019)
fakultas ilmu keperawatan universitas riau, try out, uji kompetensi ners indonesia, computer based test (cbt), Science, Electronic computers. Computer science, and QA75.5-76.95
Uji Kompetensi Ners Indonesia (UKNI) yaitu merupakan suatu proses untuk mengukur pengetahuan, keterampilan, dan sikap, sesuai dengan standar profesi guna memberikan jaminan bahwa perawat mampu melaksanakan peran profesinya secara aman dan efektif di masyarakat. Uji kompetensi ners Indonesia menggunakan komputer (Computer Based Test/CBT). Sebelum melaksanakan UKNI yang akan dilaksanakan nasional di perguruan tinggi program studi keperawatan, mahasiswa terlebih dahulu melakukan try out uji kompetensi ners sebagai langkah untuk mempersiapkan diri. Hal ini juga terjadi di Fakultas Ilmu Keperawatan Universitas Riau (FKp-UR). Selama ini kegiatan try out dilaksanakan secara konvensional yaitu menggunakan kertas sebagai media dalam melaksanakannya, sehingga menyebabkan mahasiswa menjadi tidak terbiasa dalam melaksanakan UKNI berbasis CBT. Berdasarkan permasalahan tersebut dibangun sebuah sistem CBT try out di FKp-UR, diharapkan dengan dibangunnya sistem tersebut, mahasiswa mampu membiasakan diri dalam menggunakan CBT pada saat melaksanakan UKNI. Hasil dari penelitian diketahui bahwa pada tahap pembangunan sistem menggunakan metode prototyping sebanyak empat kali putaran, sehingga kebutuhan dari user terhadap sistem dapat terpenuhi dengan maksimal. Kata kunci: Fakultas Ilmu Keperawatan Universitas Riau ,Try Out, Uji Kompetensi Ners Indonesia, Computer Based Test (CBT), user acceptence test, performance efficiency, usabilty, security.
Asia Pacific Journal of Multidisciplinary Research, Vol 7, Iss 2.3, Pp 1-9 (2019)
Biometric Fingerprint Authentication, Daily Time Record System, Prototyping Methodology, Science, and Social Sciences
The Daily Time Record (DTR) is a requirement as a basis primarily for the salary of employees. This DTR is a measure of the behavior of one’s employee towards work. It is used to determine the undertaking of employees during their working hours. It gathers the logs in and logs out time information. The study generally aimed to design, develop, implement and evaluate the Daily Time Record (DTR) System using Biometric Fingerprint Authentication. Specifically, the study aimed to design with usable functional requirements considering DTR, Employee, Department and Import modules. Likewise, determine the system’s acceptability level using ISO 9126 criteria on its usability and efficiency. The study observed prototyping methodology in systems analysis, design, development, and implementation. The quantitative research was employed particularly purposive sampling during the system’s evaluation of its functional requirements, and the system’s behavioral aspect particularly usability and efficiency characteristics. The results revealed that the system, generally in accordance to the pre-defined functionalities, particularly, compliance with the Civil Service DTR report, with highly acceptable system’s behavioral characteristics on its usability and efficiency. It means the system functions adherence to institutional standards, highly usable particularly in the keeping, monitoring of the employees’ attendance and the whole system process provides efficiency. The realization of the study is an indicator of evolving to the culture of innovation for ethical knowledge-based society. It is recommended to consider relevant features like the automatic generation of payroll, summary lists of the employees’ requisition of the leave credits, and the computation of absences to sustain evolving the culture of innovation towards ethical knowledge-based society.
Sunita Darbe, Matthew D. Escarra, Emily C. Warmann, and Harry A. Atwater
Energy Science & Engineering, Vol 7, Iss 6, Pp 2572-2584 (2019)
holographic optical elements, III‐V alloys, multijunction, photovoltaic, solar energy, spectrum splitting photovoltaics, Technology, and Science
Abstract Spectrum‐splitting photovoltaics incorporate optical elements to separate sunlight into frequency bands, which can be targeted at solar cells with bandgaps optimized for each sub‐band. Here, we present the design of a holographic diffraction grating‐based spectrum‐splitting photovoltaic module integrating eight III‐V compound semiconductor cells as four dual‐junction tandems. Four stacks of simple sinusoidal volume phase holographic diffraction gratings each simultaneously split and concentrate sunlight onto cells with bandgaps spanning the solar spectrum. The high‐efficiency cells get an additional performance boost from concentration incorporated using a single or a compound trough concentrator, providing up to 380X total concentration. Cell bandgap optimization incorporated an experimentally derived bandgap‐dependent external radiative efficiency function. Simulations show 33.2% module conversion efficiency is achievable. One grating stack is experimentally fabricated and characterized.
The paper presents design and manufacturing process of an individualized wrist orthosis. The patient’s upper limb was 3D scanned and the orthosis was design using a CAD system. Each part of the orthosis consists of two different materials, that fulfill different functions. By using the double-head Fused Deposition Modelling machine it was possible to produce theses parts in a single process without the need for additional assembly operations. The orthosis has been tested for mutual fit of parts, strength and comfort of use.
This paper presents a mathematical model and tooth contact analysis of eccentric cycloid gear mesh. Numerical simulations aimed at generating contact pattern for a sample gear pair were performed. Contact pattern was also determined for gear wheels made by additive fabrication from transparent light-activated resin.