articles+ search results

3dtechnology, pattern, prototyping, garment factories, virtual simulation), Fine Arts, Architecture, and NA1-9428

3D technology is considered one of the Pattern digital technologies that help this technology to increase, ease and speed of completion of industrial processes. This study deals with how to take advantage of 3D technology in developing the performance of the samples department in the technical department of ready-to-wear factories, in order to solve the problems of the samples section associated with the implementation of the 2D Pattern, as this problem was concluded through field study and practical experiences in ready-to-wear factories in Egypt.Controlling the fitting Pattern of clothes in the samples section faces many difficulties, the most important of which is the incompatibility of the industrial Pattern drawn with the human body “Pattern ". Where defects appeared in the product after conducting and implementing the first sample, which required making adjustments to the industrial Pattern and re-executing the sample a second time until it became free from defects and ready to perform the grading according to the measurements and the "order" of the operation order required to be executed to start production processes, which results in it. In the presence of lost time to implement the sample, as well as wasted effort, and wastes in the raw materials used in the implementation of the sample (fabric/ accessories / threads / and direct and indirect costs) that will be quantified after that.In order to find a solution to this problem, this research presents a case study using the "CLO5.1" program to improve the industrial Pattern in order to improve the quality of the male industrial Pattern drawing using 3D technology by making adjustments to some areas where the stress and stress ratios are high due to the lack of nan fitting of the Pattern. Industrial, which does not appear clearly even during implementation. The study concluded that the implementation of the CLO5.1 program in the sample section has succeeded in reducing the time wastage for sample production and the wastage of raw materials, thus reducing the cost of sample productionKey words :( 3Dtechnology ، pattern، Prototyping ، Garment Factories ،virtual simulation)

mineral fertilizers, energy-saving technologies, working tool, uniformity of distribution, 3d, cad model, prototyping, experimental research, Engineering (General). Civil engineering (General), TA1-2040, Technology (General), and T1-995

Introduction. Improvement of the agro-industrial complex involves the creation of new and modernizations of existing working tools and machines. The important conditions for this are the application of modern technologies and ongoing cooperation with the actual manufacturing. The aim of the research is to develop an adaptive centrifugal working tool and improve the quality of mineral fertilization. Materials and Methods. The adaptive centrifugal working tool was developed and manufactured based on studying the state of the matter and requirements to machines for mineral fertilization. At all stages of the research, there were used computer-aided design and rapid prototyping methods based on additive technologies. Results. As a result of the use of the presented working tools, the machine operating width has increased by 10.0‒22.5%. Experimental working tools, in comparison with serial ones, allow decreasing uneven distribution of mineral fertilizers by 13.4% due to their redistribution from the central zone to the edges. Discussion and Conclusion. As a result of experimental studies, the efficiency of the developed adaptive centrifugal working tools has been proved. It allows increasing uniformity of mineral fertilizer distribution and the machine operating width. Modern design methods make it possible to considerably reduce time and costs.

electroless nickel plating, acrylonitrile butadiene styrene, rapid prototyping, Mechanical engineering and machinery, and TJ1-1570

Electroless plating on Acrylonitrile Butadiene Styrene (ABS) is a metallization process that involves a reduction and oxidation reaction between the nickel source and the substrate material. The purpose of this research is to determine the ability of nickel deposition in the nickel electroless plating process with a specific etching time variation. This nickel electroless procedure begins with a chromic acid etching process that can last anywhere from 15 to 55 minutes and is useful for increasing roughness and creating submicroscopic cavities. After the etching process is finished, the surface roughness test is performed with a Mitutoyo SJ-210. Additionally, the activation step is carried out for 5 minutes in order for the polymer to become a conductor, allowing the plating process to proceed. The electroless plating process was then carried out for 55 and 75 minutes, with the goal of depositing nickel metal on the ABS surface. The coating results were analyzed using Fourier Transform Infrared (FTIR) spectroscopy IRSpirit/ATR-S serial No. A224158/Shimadzu to determine the functional groups formed both before and after the coating process, X-Ray Diffraction (XRD) to determine the character of the crystal structure, and phase analysis of a solid material using PANalytical type E'xpert Pro, To determine the surface morphology, the Zeiss EVO MA 10 was used to perform scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS) at 1000x magnification. The test findings demonstrate that, based on a range of investigations, etching variations of 15,25,35,45, and 55 minutes etching time 55 minutes are the best nickel deposited substrates, as evidenced by EDS data, where this treatment has the largest weight fraction of nickel. As a result, the longer the etching period, the rougher the surface becomes, affecting the capacity of nickel deposition to increase. Furthermore, it can be demonstrated in this investigation that the nickel deposited is in an amorphous form.

Medicine and Science

Abstract Droplet microfluidics offers a platform from which new digital molecular assay, disease screening, wound healing and material synthesis technologies have been proposed. However, the current commercial droplet generation, assembly and imaging technologies are too expensive and rigid to permit rapid and broad-range tuning of droplet features/cargoes. This rapid prototyping bottleneck has limited further expansion of its application. Herein, an inexpensive home-made pipette droplet microfluidics kit is introduced. This kit includes elliptical pipette tips that can be fabricated with a simple DIY (Do-It-Yourself) tool, a unique tape-based or 3D printed shallow-center imaging chip that allows rapid monolayer droplet assembly/immobilization and imaging with a smart-phone camera or miniature microscope. The droplets are generated by manual or automatic pipetting without expensive and lab-bound microfluidic pumps. The droplet size and fluid viscosity/surface tension can be varied significantly because of our particular droplet generation, assembly and imaging designs. The versatility of this rapid prototyping kit is demonstrated with three representative applications that can benefit from a droplet microfluidic platform: (1) Droplets as microreactors for PCR reaction with reverse transcription to detect and quantify target RNAs. (2) Droplets as microcompartments for spirulina culturing and the optical color/turbidity changes in droplets with spirulina confirm successful photosynthetic culturing. (3) Droplets as templates/molds for controlled synthesis of gold-capped polyacrylamide/gold composite Janus microgels. The easily fabricated and user-friendly portable kit is hence ideally suited for design, training and educational labs.

Manufactures, TS1-2301, Technological innovations. Automation, and HD45-45.2

Abstract Industry 4.0 has ushered in a new era of digital manufacturing and in this context, digital twins are considered as the next wave of simulation technologies. The development and commissioning of Cyber Physical Systems (CPS) is taking advantage of these technologies to improve product quality while reducing costs and time to market. However, existing practices of virtual design prototyping and commissioning require the cooperation of domain specific engineering fields. This involves considerable effort as development is mostly carried out in different departments using vendor specific simulation tools. There is still no integrated simulation environment commercially available, in which all engineering disciplines can work collaboratively. This presents a major challenge when interlinking virtual models with their physical counterparts. This paper therefore addresses these challenges by implementing a holistic and vendor agnostic digital twin solution for design prototyping and commissioning practices. The solution was tested in an industrial use case, in which the digital twin effectively prototyped cost‐efficient solar assembly lines.

context-based interface prototyping, autonomous vehicles, human–machine interfaces, prototyping methods, simulation, physical context, Technology, and Science

Before autonomous vehicles (AVs; SAE levels 4 and 5) become broadly available, acceptance challenges such as trust and safety concerns must be overcome. In the development of appropriate HMIs that will tackle these challenges, physical and social context play essential roles. Contextual factors thus need to be considered in early prototyping stages. Based on a qualitative semi-systematic literature review and knowledge from our research, this paper elaborates on the value of context-based interface prototyping in the AV domain. It provides a comprehensive overview and a discussion of applicable methods, including physical lab-based prototyping (mock-up, ride simulation with virtual and mixed reality, and immersive video), social context simulation (actors, enactment, items and props, and sound), wizard-of-oz, and experimental vehicles. Finally, the paper discusses factors affecting the impact of prototyping and derives recommendations for the application of prototyping methods in future AV studies.

axial fan, ventilation, efficiency, rapid prototyping, CFD, FEM, and Technology

The article discusses the process of designing and testing as well as their results, carried out in order to increase the efficiency of axial fans, implemented as part of the European project INESI. Modifications of existing solutions based on rapid prototyping methods were presented. Scanning, FEM and CFD numerical calculations and 3D printing were used for that purpose. Rapid prototyping involved the use of a steel blade base and 3D-printed complex aerodynamic shapes that were bonded to create completely new blades. After their installation on the new rotor, enabling the angle of attack adjusting, a number of verifying tests of the fan were carried out. The solution was successfully tested and the results are discussed in the article.

Medicine and Science

Abstract Soft lithography has permitted rapid prototyping of precise microfluidic features by patterning a deformable elastomer such as polydimethylsiloxane (PDMS) with a photolithographically patterned mold. In microfluidics applications where the flexibility of PDMS is a drawback, a variety of more rigid materials have been proposed. Compared to alternatives, devices fabricated from epoxy and glass have superior mechanical performance, feature resolution, and solvent compatibility. Here we provide a detailed step-by-step method for fabricating rigid microfluidic devices from soft lithography patterned epoxy and glass. The bonding protocol was optimized yielding devices that withstand pressures exceeding 500 psi. Using this method, we demonstrate the use of rigid high aspect ratio spiral microchannels for high throughput cell focusing.

type 2 diabetes mellitus, mhealth, mobile app, Medicine (General), and R5-920

Yu Heng Kwan,1– 4 Zhi Quan Ong,5 Dawn Yee Xi Choo,1 Jie Kie Phang,2,4 Sungwon Yoon,2,4 Lian Leng Low2,4,6– 9 1Department of Pharmacy, National University of Singapore, Singapore, Singapore; 2Health Services and Systems Research, Duke-NUS Medical School, Singapore, Singapore; 3Internal Medicine Residency, SingHealth, Singapore, Singapore; 4Centre for Population Health Research and Implementation, SingHealth Regional Health System, Singapore, Singapore; 5School of Computing, National University of Singapore, Singapore, Singapore; 6Population Health & Integrated Care Office (PHICO), Singapore General Hospital, Singapore, Singapore; 7Department of Family Medicine and Continuing Care, Singapore General Hospital, Singapore, Singapore; 8Post-Acute and Continuing Care, Outram Community Hospital, Singapore, Singapore; 9SingHealth Duke-NUS Family Medicine Academic Clinical Program, Singapore, SingaporeCorrespondence: Lian Leng Low, Department of Family Medicine & Continuing Care, Singapore General Hospital, 20 College Road, Singapore, 169856, Singapore, Tel +65 63265872, Email low.lian.leng@singhealth.com.sgBackground: Diabetes is a global public health issue, causing burden on healthcare system and increasing risk of mortality. Mobile applications (apps) can be a promising approach to facilitate diabetes self-management. An increasingly utilized approach to facilitate engagement with mobile health (mHealth) technology is to involve potential users in the creation of the technology.Objective: The aim of this study was to use co-design for type 2 diabetes mellitus (T2DM) self-management mHealth development.Methods: Three rounds of iterative rapid prototyping panel sessions were conducted with a total of 9 T2DM participants in an Asian setting between Oct 2020 and April 2021. The participants were recruited through convenience sampling. For each round, feedback was gathered through qualitative interviews, and the feedback was used as a reference by the development team to develop and test a more refined version of the app in the next round. Transcribed semi-structured interview data was analyzed thematically using an inductive approach.Results: Participants’ ages ranged from 40 to 69 years. Data saturation was reached, with no new themes emerging from the data. During the sessions, the participants expressed a variety of concerns and feedback on T2DM self-management using EMPOWER app and raised suggestions on the features of ideal T2DM self-management app. Important features include 1) reminders and notifications for medications, 2) Bluetooth integration with glucometers and blood pressure machines to minimize manual entry, 3) enlarged local food database including information on sugar content and recommendations for healthier options, 4) one touch for logging of routine medications and favorite foods, 5) export function for data sharing with physicians. Overall inputs concerned aspects such as user-friendliness of the app, customization possibilities, and educational content for the features in the mobile app.Conclusion: In this study, we explored users’ opinions on a T2DM self-management mobile app using co-design approach. This study adds to the growing body of literature on co-designing behavioral mHealth interventions and can potentially guide researchers in mobile app design for other chronic conditions.Keywords: type 2 diabetes mellitus, mHealth, mobile app

piezoelectric transducer, ultrasonic transducer, manufacturing, rapid prototyping, additive manufacturing, 3D printing, Chemical technology, and TP1-1185

We present a rapid prototyping method for sub-megahertz single-element piezoelectric transducers by using 3D-printed components. In most of the early research phases of applying new sonication ideas, the prototyping quickness is prioritized over the final packaging quality, since the quickness of preliminary demonstration is crucial for promptly determining specific aims and feasible research approaches. We aim to develop a rapid prototyping method for functional ultrasonic transducers to overcome the current long lead time (>a few weeks). Here, we used 3D-printed external housing parts considering a single matching layer and either air backing or epoxy-composite backing (acoustic impedance > 5 MRayl). By molding a single matching layer on the top surface of a piezoceramic in a 3D-printed housing, an entire packaging time was significantly reduced ( 1) at focus with temporal pulse controllability (maximum amplitude by pp far-field transmitting sensitivity with 25.3% fractional bandwidth whereas the type B transducer showed 2.1 kPa/Vpp transmitting sensitivity with 43.3% fractional bandwidth. As this method provided discernable quickness and cost efficiency, this detailed rapid prototyping guideline can be useful for early-phase sonication projects, such as multi-element therapeutic ultrasound array and micro/nanomedicine testing benchtop device prototyping.

prototyping, design thinking, higher education institution, HEI management, cognitive biases, and Education

A project using design thinking (DT) was conducted among internal stakeholders of a large state Japanese university to design a user-centric brochure promoting study abroad programs at francophone partner universities. The low-fidelity prototype and the final product created with DT were tested by asking potential student-users to compare it with a standard brochure through two sets of surveys. Analysis of the quantitative and qualitative data revealed that low-fidelity prototyping was effective to enhance both the utility and usability of the final product. We also show how DT helped expose cognitive biases among designers.

subtractive rapid prototyping, additive rapid prototyping, rapid prototyping process selection, analytic hierarchy process, multi-criteria decision analysis, Industrial engineering. Management engineering, and T55.4-60.8

The present research addresses a comparative analysis among Additive (ARP) and Subtractive (SRP) rapid prototyping techniques, aiming to determine which approach presents greater technical and economic viability for physical prototype manufacturing. The Analytic Hierarchy Process (AHP) multi-criteria decision method was used to categorize and quantify the analysis criteria. The analyzed Rapid Prototyping (RP) techniques were the Computer Numerical Control (CNC) milling as SRP technique and the Fused Deposition Modeling (FDM) process as ARP. The SRP rapid prototyping technique is the most suitable alternative for manufacturing prototypes, according to the analyzed evaluation criteria.

precision medicine, knowledgebase, polymorphic foreign key, mind map, prototyping tool, Immunologic diseases. Allergy, and RC581-607

BackgroundWith significant advancements in the area of precision medicine, the breadth and complexity of the relevant knowledge in the field has increased significantly. However, the difficulty associated with dynamic modelling and the disorganization of such knowledge hinders its rapid development potential.ResultsTo overcome the difficulty in using the relational database model for dynamic modelling, and to aid in the organization of precision medicine knowledge, we developed the Mind Mapping Knowledgebase Prototyping (MMKP) tool. The MMKP implements a novel design that we call a “polymorphic foreign key”, which allows the establishment of a logical linkage between a single table field and a record from any table. This design has advantages in supporting dynamic changes to the structural relationships in precision medicine knowledge. Knowledge stored in MMKP is presented as a mind map to facilitate human interaction. When using this tool, medical experts may curate the structure and content of the precision knowledge in a flow that is similar to the human thinking process.ConclusionsThe design of polymorphic foreign keys natively supports knowledge modelling in the form of mind mapping, which avoids the hard-coding of medical logic into a rigid database schema and significantly reduces the workload that is required for adapting a relational data model to future changes to the medical logic. The MMKP tool provides a graphical user interface for both data management and knowledgebase prototyping. It supports the flexible customization of the data field constraints and annotations. MMKP is available as open-source code on GitHub: https://github.com/ZjuLiangsl/mmkp.

Rapid Prototyping, 3Dimentional Printing, Stereolithography, Selective Laser Sintering, Fused Deposition Method, Inkjet-Based System, Medical technology, and R855-855.5

Purpose: Rapid Prototyping (RP) methods have for quite some time been utilized to construct complex 3-Dimensional (3D) models in the field of medicine since the 1900s. This paper intends to offer a thorough audit of different RP strategies, especially in Prosthodontics that are relied upon to carry numerous enhancements to this field. Materials and Methods: A pursuit was made using the Google scholar web and the PubMed database as a search engine. The keywords; ‘RP’, ‘rapid prototyping’, ‘3D printing’, ‘dentistry’ and ‘prosthodontics’, ‘stereolithography’, ‘selective laser sintering’, ‘fused deposition method’, and ‘inkjet-based system’ were looked at in the title/abstract of distributions. References of selected articles were additionally looked into for conceivable incorporation in the study. The selected articles utilized RP procedures in different fields of dentistry through various methods. Nonetheless, distributions concerning the dental utilization of RP advancements are as yet uncommon. Results: Although the concept of layering 3D objects is almost as old as human civilization, this technology has only lately been applied to the construction of 3D complex models in dentistry. Many additional methods appear to be on the horizon that could alter standard dentistry practises in the near future. More unit hours should be included in dentistry curriculums to familiarise dental professionals with the various advantages of this unique technology. Conclusion: Lately, RP using the property of adding substances or layering strategies have advanced quickly in different fields of dentistry as they can overcome known disadvantages of subtractive and regular procedures. RP has as of late proposed effective uses in different fields of dentistry, like fabrication of implant surgical guides, structures for Removable Partial Dentures (RPDs), Fixed Partial Dentures (FPDs), wax designs for the dental prosthesis, maxillofacial prosthesis, zirconia prosthesis, and molds for metal castings now as well for complete dentures.

Autotransplantation, Rapid prototyping, Root canal treatment, Dentistry, and RK1-715

Abstract Background Autotransplantation is a beneficial treatment with a high success rate for young patients. However, most adult patients require root canal treatment (RCT) of the donor teeth after the autotransplantation procedure, which causes a prolonged treatment time and additional expenses and increases the rate of future tooth fracture. Rapid prototyping (RP)-assisted autotransplantation shortens the extra-alveolar time and enables a superior clinical outcome. However, no cohort studies of the application of this method on adult populations have been reported. Methods This study is a retrospective cohort study. All patients underwent autotransplantation from 2012 to 2020 in the Kaohsiung and Chia-Yi branches of Chang Gung Memorial Hospital, and the procedure and clinical outcomes were analysed. Differences in clinical outcomes, age, sex, extra-alveolar time, fixation method, and RCT rate were compared between the two groups. Results We enrolled 21 patients, 13 treated using the conventional method and 8 treated using the RP-based technique. The RCT rates of the conventional group and RP group were 92.3% and 59%, respectively. The mean age of the two groups was significantly different (28.8 ± 10 vs. 21.6 ± 2.1); after performing subgroup analysis by excluding all of the patients aged > 40 years, we found that the RCT rates were still significantly different (91.0% vs. 50%). The mean extra-alveolar time was 43 s in the RP group, and the autotransplantation survival rate in both groups was 100%. Conclusions Rapid prototyping-assisted autotransplantation was successfully adopted for all patients in our study population. By shortening the extra-alveolar time, only 50% of the patients required a root canal treatment with a 100% autotransplantation survival rate. Trial Registration : Retrospectively registered.

Strategic design, Methodology, Actor-Network Theory, Prototyping, Research, Technology (General), T1-995, Economics as a science, and HB71-74

Published in two parts, this article presents an evidence-based research and prototyping method for strategic design. In Part 1, we introduce the concept of DARN as an updated version of Actor-Network Theory (ANT). DARN is a theoretical framework used to study, rearrange, or remake the constituents of an organization or problem universe. In Part 2, we propose that DARN can be used to for several purposes. (1) It can help organizations reach their stated objectives. (2) It can define, darn, or solve organizational problems with evidence-based and collaborative design interventions. (3) It allows us to imagine new organizational models with complex and distributed agency considerations. (4) It can improve and measure the impact of design interventions within organizational strategy. The DARN approach is critical of social engineering and design solutionism. This approach proposes using collaborative strategic design in sector-agnostic organizational contexts to support designers in problematization, research, conceptualization, prototyping, testing, and impact measurement. Further, DARN presents a single frame that designers and scientists can use simultaneously without imposing an a priori language on each other. It can also serve other actors with whom they work and study. The article concludes with a practical discussion of how to apply DARN on the ground while considering its limits.

Strategic Design, Methodology, Actor-Network Theory, Prototyping, Research, Technology (General), T1-995, Economics as a science, and HB71-74

This article presents the first part of a study that aims at proposing an evidence-based research and prototyping methodology for strategic design. Analyzing the emergence of Strategic Design, we argue that a historically unprecedented rapprochement between intangible design and social research opens a spectrum of possibility for conducting design and science in a new way. First, we examine the emergence of strategic design and discuss its institutionalization in academic and professional contexts. Second, we summarize the three ways of approaching Strategic Design as (1) Discipline, (2) Practice and (3) Attitude. Third, drawing on the social sciences as inspired by Actor-Network Theory (ANT), we define Strategic Design as an evidence-based and social scientifically informed creative practice that aims at proposing a new way to arrange or remake the interaction between devices (D), actors (A), representations (R), and networks (N) in any given organization or problem universe. Preparing a groundwork to develop a research and prototyping methodology for strategic design, the paper ends with a methodological discussion as a segue to Part 2 (available in this issue of She-Ji) that presents DARN as a theoretical toolkit for strategic designers.

virtual factory, digital twin, virtual prototyping, virtual reality, simulation and modeling, industry 4.0, Information technology, and T58.5-58.64

Shortening lifecycles and increasing complexity make product and production lifecycle processes more challenging than ever for manufacturing enterprises. Virtual Prototyping (VP) technologies promise a viable solution to handle such challenges in reducing time and physical builds as well as increasing quality. In previous studies, the Digital Twin (DT) based Virtual Factory (VF) concept showed significant potential to handle co-evolution by integrating 3D factory and product models with immersive and interactive 3D Virtual Reality (VR) simulation technology as well as real-time bidirectional data synchronisation between virtual and physical production systems. In this article, we present an extension to the paper “Demonstrating and Evaluating the Digital Twin Based Virtual Factory for Virtual Prototyping” presented at CARV2021. The study presents an evaluation by industry experts of the DT based VF concept for VP in the context of New Product Introduction (NPI) processes. The concept is demonstrated in two cases: wind turbine blade manufacturing and nacelle assembly operations at Vestas Wind Systems A/S. The study shows that the VF provides an immersive virtual environment, which allows the users to reduce the time needed for prototyping. The industry experts propose several business cases for the introduced solution and find that the phases that would have the most gain are the later ones (production) where the product design is more mature.

pedagogical prototyping, living labs, immersive education, nature-based solutions, circular bioeconomy, Architecture, and NA1-9428

Emerging designers and makers of the built environment have an outstanding responsibility and potential to mitigate and adapt to global climate change, environmental pollution, biodiversity loss, and resource depletion. This paper overviews how the Institute for Advanced Architecture of Catalonia – Valldaura Labs (VL) educates incipient practitioners in interdisciplinary strategies for unifying the constructed and natural worlds through pedagogical prototyping and learning by living. VL is a living lab sited 10 km from Barcelona’s centre in the Collserola Natural Park, hosting the immersive Master in Advanced Ecological Buildings & Biocities (MAEBB), which culminates in the annual autonomous design and fabrication of a self-sufficient building. The methods and projects of VL provide best practices of reference for realising holistically integrated ecological and technological landscapes.