1,316 research outputs found
Reporting guidelines for the early-phase clinical evaluation of applications using extended reality: RATE-XR qualitative study guideline
Full text linkBackground: Extended reality (XR), encompassing technologies such as virtual reality, augmented reality, and mixed reality, has rapidly gained prominence in health care. However, existing XR research often lacks rigor, proper controls, and standardization.Objective: To address this and to enhance the transparency and quality of reporting in early-phase clinical evaluations of XR applications, we present the "Reporting for the early-phase clinical evaluation of applications using extended reality" (RATE-XR) guideline.Methods: We conducted a 2-round modified Delphi process involving experts from diverse stakeholder categories, and the RATE-XR is therefore the result of a consensus-based, multistakeholder effort.Results: The guideline comprises 17 XR-specific (composed of 18 subitems) and 14 generic reporting items, each with a complementary Explanation & Elaboration section.Conclusions: The items encompass critical aspects of XR research, from clinical utility and safety to human factors and ethics. By offering a comprehensive checklist for reporting, the RATE-XR guideline facilitates robust assessment and replication of early-stage clinical XR studies. It underscores the need for transparency, patient-centeredness, and balanced evaluation of the applications of XR in health care. By providing an actionable checklist of minimal reporting items, this guideline will facilitate the responsible development and integration of XR technologies into health care and related fields
Mapping XR Platforms: Analyzing Immersion from the Designer’s Perspective
No full textUnderstanding humans are the key to developing optimal design solutions for product-service systems. In this sense, the experiential approach is in line but might go beyond typical Human Centered Design (HCD) methods in that it focuses on generating positive experiences that contribute directly to human well-being. Extended Reality (XR) showed the potential to replicate or simulate experience as a whole and gained attention from design communities. XR platforms confused design practitioners due to their fast-advancing amounts and relevant experiences. Hence, this study introduced two surveys on XR platforms to clarify which experiences they could provide and when to implement them into HCD processes. Survey 1 categorized XR platforms according to their key attributes and mapped them into the Experience Matrix. Survey 2 invented two designer personas and a fictional project to analyze barriers and strategies to implement XR platforms into design processes. Eighty-eight XR platforms were categorized into nineteen clusters, where creation and simulation had the highest numbers. Regarding implementing XR in design practices, the cost is still the key concern and there's a trade-off between software cost and assets purchased for different types of designers.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Applied Ergonomics and DesignTeaching & Learning Service
Catalytic activity of Al2O3/WO3/ZrO2 strong solid acid catalyst for n-butane isomerization
No full textHow it feels: The value and application of physical sensation in XR: Explore Somatosensory experience’s possibility in future XR trends
No full textThis research advocates for exploring the somatosensory system and its incorporation within XR systems, particularly in spatial recognition. This paradigm shift could introduce novel methodologies in XR design that perceive the body as a recipient of sensory stimuli and as an active participant in sensory perception. This could redefine our understanding of somatosensory in XR and contribute to a more holistic approach to multisensory design. Additionally, this study aims to examine the deployment of XR in the evaluation of aircraft interior design. The successful integration of XR technologies could potentially revolutionize the design process by presenting a more immersive and authentic user testing environment. In light of the present deficiency in precise spatial recognition within XR applications, this research could offer fresh insights into optimizing XR use in design, thereby improving spatial perception accuracy and enhancing ergonomics and user experience in real-world applications, such as aircraft interior design.Integrated Product Desig
First-principles calculations of elastic and electronic properties of NbB2 under pressure
No full textThe structural parameters, elastic constants and electronic structure of NbB2 under pressure are investigated by using first-principles plane-wave pseudopotential density functional theory within the generalized gradient approximation (GGA). The obtained results are in agreement with the available theoretical data. It is found that the elastic constants and the Debye temperature of NbB2 increase monotonically and the anisotropies weaken with pressure. The band structure and density of states (DOS) of NbB2 under pressure are also presented. It is the sigma hole that determines the superconductivity in NbB2, and the features of the sigma bands are unchanged after applying pressure except for a shift of position. The density of states (DOS) at the Fermi level decreases with increasing pressure, in conjunction with Bardeen Cooper-Schrieffer (BCS) theory, which can predict T-c decreasing with pressure, in agreement with the trend of the theoretical T-c versus pressure
Een datatransmissiesysteem m.b.v. het I.C. XR 210
No full textDit verslag bekijkt de mogelijkheid om met het IC XR 210 van EXAR een F.S.K. datatransmissiesysteem te realiseren voor de kabel van Rijksweg A 13 naar het Laboratorium voor Automatische Verkeerssystemen.Applied SciencesElectrotechniekLaboratorium voor automatische verkeerssysteme
Reduction of Artefacts in JPEG-XR Compressed Images
No full textThe JPEG-XR encoding process utilizes two types of transform operations: Photo Overlap Transform (POT) and Photo Core Transform (PCT). Using the Device Porting Kit (DPK) provided by Microsoft, we performed encoding and decoding processes on JPEG XR images. It was discovered that when the quantization parameter is >1-lossy compression conditions, the resulting image displays chequerboard block artefacts, border artefacts and corner artefacts. These artefacts are due to the nonlinearity of transforms used by JPEG-XR. Typically, it is not so visible; however, it can cause problems while copying and scanning applications, as it shows nonlinear transforms when the source and the target of the image have different configurations. Hence, it is important for document image processing pipelines to take such artefacts into account. Additionally, these artefacts are most problematic for high-quality settings and appear more visible at high compression ratios. In this paper, we analyse the cause of the above artefacts. It was found that the main problem lies in the step of POT and quantization. To solve this problem, the use of a “uniform matrix” is proposed. After POT (encoding) and before inverse POT (decoding), an extra step is added to multiply this uniform matrix. Results suggest that it is an easy and effective way to decrease chequerboard, border and corner artefacts, thereby improving the image quality of lossy encoding JPEG XR than the original DPK program with no increased calculation complexity or file size.補正完畢CH
Reporting Guidelines for the Early-Phase Clinical Evaluation of Applications Using Extended Reality: RATE-XR Qualitative Study Guideline
Full text linkBackgroundExtended reality (XR), encompassing technologies such as virtual reality, augmented reality, and mixed reality, has rapidly gained prominence in health care. However, existing XR research often lacks rigor, proper controls, and standardization.
ObjectiveTo address this and to enhance the transparency and quality of reporting in early-phase clinical evaluations of XR applications, we present the “Reporting for the early-phase clinical evaluation of applications using extended reality” (RATE-XR) guideline.
MethodsWe conducted a 2-round modified Delphi process involving experts from diverse stakeholder categories, and the RATE-XR is therefore the result of a consensus-based, multistakeholder effort.
ResultsThe guideline comprises 17 XR-specific (composed of 18 subitems) and 14 generic reporting items, each with a complementary Explanation & Elaboration section.
ConclusionsThe items encompass critical aspects of XR research, from clinical utility and safety to human factors and ethics. By offering a comprehensive checklist for reporting, the RATE-XR guideline facilitates robust assessment and replication of early-stage clinical XR studies. It underscores the need for transparency, patient-centeredness, and balanced evaluation of the applications of XR in health care. By providing an actionable checklist of minimal reporting items, this guideline will facilitate the responsible development and integration of XR technologies into health care and related fields
Exploring the dynamics of user experience and interaction in XR-enhanced robotic surgery: a systematic review
Full text linkRobotic surgery, also known as robotic-assisted surgery (RAS), has rapidly evolved during the last decade. RAS systems are developed to assist surgeons to perform complex minimally invasive surgeries, and necessitate augmented interfaces for precise execution of these image-guided procedures. Extended Reality (XR) technologies, augmenting the real-world perception via integrating digital contents, show promise in enhancing RAS efficacy in various studies. Despite multiple reviews on technological and medical aspects, the crucial elements of human-robot interaction (HRI) and user experience (UX) remain underexplored. This review fills this gap by elucidating HRI dynamics within XR-aided RAS systems, emphasizing their impact on UX and overall surgical outcomes. By synthesizing existing literature, this systematic review study identifies challenges and opportunities, paving the way for improved XR-enhanced robotic surgery, ultimately enhancing patient care and surgical performance
XR Programmers Give Their Perspective on How XR Technology can be Effectively Utilised in High-Performance Sport
Full text linkBackground: The successful use of extended reality (XR) in sport is highly dependent on the extent to which it can represent the perception–action couplings that exist in the performance setting. However, there are many unknowns regarding the effectiveness of XR technology which is limiting its adoption in sport. Therefore, providing high-performance sporting organisations with more information about the efficacy and utility of XR, specifically its strengths and limitations, is warranted. Results: The results provide insight into the limitations of XR and how those limitations are likely to reduce the effectiveness of XR for training motor skills. The participants described opportunities provided by XR for measuring athlete performance and highlighted several practical applications for enhancing athlete and coaching performance. Using artificial intelligence (AI) for training tactical decision-making and creating new movement solutions was also a key finding. Conclusions: The use of XR in sport is in its infancy, and more research is required to establish a deeper understanding of its utility and efficacy. This research provides sporting organisations, coaches, athletes, and XR technology companies with insights into where XR technology can have the greatest positive impact on performance in sport. © 2023, The Author(s)
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