Interactive Display Research Articles

VALIDAREA EXPERIMENTALĂ A ESTIMATORULUI DE PARCURS COMBINAT LA TRACTORUL ELECTRIC DE PUTERE MICĂ

The combined use of the electric tractor in high-speed travel and high-torque towing must involve a trip range estimation and an optimal driving behavior of the vehicle. The paper proposes an estimation method based on the measured usable energy reserve and on prediction of the power consumption for the two selected operating modes: rolling and towing. As driver’s interface will be used an interactive graphical display which can be used for the initial settings and further adjustments of some of the working parameters. The demonstrations are sustained by trip recordings used for calibration process and for error mitigation.

Double Projection of Motion Graphic Using Glass Reflection: A Case Study of Massacre

With the continuous development of technology and artistic creation, the creation methods and styles of hand-drawn animation have become increasingly diversified. Simultaneously, many creators are focusing on the absorption and reference of different art forms and expression methods. As one of the forms of art design, the application of hand-drawn animation to holographic display technology introduces a completely different aesthetic feeling. Through holographic display technology, visual design and visual technology in hand-drawn animation art are integrated, the expressiveness and richness are significantly enhanced, and the artistic personality and charm are better demonstrated. The main research objective of this paper is the innovative application of holographic display technology in hand-drawn animation. With the help of holographic display technology, the pre-prepared hand-drawn animation is projected on the glass and overlapped with the hand-drawn animation on another screen through a glass to create the effect of overlapping images. In addition, this paper explores the application status and technical implementation of holographic display technology in the field of animation. Furthermore, it analyzes the integration between holographic display technology and animation art in terms of interactive display modes.

Digitalization and 3D Documentation Techniques Applied to Two Pieces of Visigothic Sculptural Heritage in Merida Through Structured Light Scanning

Technological advancements have a great impact on the dissemination and understanding of the cultural heritage reality due to innovative techniques. These innovations are based on high-precision and high-resolution technologies that allow for the geometric documentation of any object within the fields of history and the arts. Through these techniques, new proposals may be studied and objects can be placed in any historical context. Three-dimensional (3D) digitization allows one to obtain a digital 3D model, which can be handled virtually and recreated at any historical period, enabling the conservation and safeguarding of cultural heritage. Society currently demands new visualization techniques that allow interacting with architectural and artistic heritage, which have been applied in numerous virtual reconstructions of historical sites or singular archaeological pieces. This project allowed us to geometrically document a reused piece with two surfaces (shield and columns) and a plaque of the city of Merida using a structured light scanner from a theoretical-practical perspective. The 3D virtual reconstruction of the pieces was accomplished within this study. The generation of QR codes enabled the interactive display of the heritage pieces. Likewise, a proposal was made to reuse the aforementioned pieces through virtual archaeology. The initial hypothesis is based on the possible existence of a Visigothic niche as an original form. This research reports significant advances in the conservation and exploitation of cultural heritage.

Combining patient-specific, digital 3D models with tele-education for adolescents with CHD.

Adolescents with CHD require transition to specialised adult-centred care. Previous studies have shown that adolescents' knowledge of their medical condition is correlated with transition readiness. Three-dimensional printed models of CHD have been used to educate medical trainees and patients, although no studies have focused on adolescents with CHD. This study investigates the feasibility of combining patient-specific, digital 3D heart models with tele-education interventions to improve the medical knowledge of adolescents with CHD. Adolescent patients with CHD, aged between 13 and 18 years old, were enrolled and scheduled for a tele-education session. Patient-specific digital 3D heart models were created using images from clinically indicated cardiac magnetic resonance studies. The tele-education session was performed using commercially available, web-conferencing software (Zoom, Zoom Video Communications Inc.) and a customised software (Cardiac Review 3D, Indicated Inc.) incorporating an interactive display of the digital 3D heart model. Medical knowledge was assessed using pre- and post-session questionnaires that were scored by independent reviewers. Twenty-two adolescents completed the study. The average age of patients was 16 years old (standard deviation 1.5 years) and 56% of patients identified as female. Patients had a variety of cardiac defects, including tetralogy of Fallot, transposition of great arteries, and coarctation of aorta. Post-intervention, adolescents' medical knowledge of their cardiac defects and cardiac surgeries improved compared to pre-intervention (p < 0.01). Combining patient-specific, digital 3D heart models with tele-education sessions can improve adolescents' medical knowledge and may assist with transition to adult-centred care.

Teaching and Learning Crystal structures through Virtual Reality based systems

Teaching and learning through Virtual Reality(VR) is an emerging technology in the last few years. In this article, the development and use of a VR based teaching–learning system for crystal structures are discussed. The VR system is designed as a lab environment where a user can do experiments related to crystal structures. The VR system is designed in Unity,11https://www.unity.com/. and Oculus Rift S22https://www.oculus.com/rift-s/. is used as a VR headset. Currently, the system consists of three phases; in the first phase user can visualize the crystal lattice structures, wherein the second one a user can visualize the light interaction with the crystal lattice structure using a virtual torch ray. The third phase is the X-ray Diffraction (XRD) experiment. In this phase, users can perform the XRD experiment in the lab environment by taking a random crystal from a crystal dispenser machine and placing it in the X-ray machine which identifies the chosen crystalline material and analyses the unit cell. The incident ray colour changes when there is a peak found in the crystal for a better understanding of the user. There is also an interactive display where users can increase/decrease the angles of the radiation and also lock and unlock the experiment to view the diffraction plot for the crystal structure. In many cases, it was found that XRD and the crystal structure is available in the course syllabus but there are no experiments to enhance their learning. Therefore an experiment with 39 participants was performed where the maximum participants are new to crystallography. The study was conducted in two phases; in the first phase, participants are asked to watch video tutorials of the topic followed by questionnaires; in the second phase participants are asked to do the VR based experiment and followed by questionnaires related to overall study and experiment. From the analysis of the study we found that everyone found VR based teaching methods are better than traditional book/video studies. Study results give an average score of 56.74% in comparison to VR based learning approach with an average score of 93.81%. Participants who took part in the experiment found the experience interactive and motivating and found it helpful to learn elusive concepts, which can be learned when simulated. For example, one participant wrote: “The VR experience was surreal and was easy to control. Lucid user experience. Got a view of XRD like never seen before”.

3dRS, a Web-Based Tool to Share Interactive Representations of 3D Biomolecular Structures and Molecular Dynamics Trajectories.

3D Representation Sharing (3dRS) is a web-based tool designed to share biomolecular structure representations, including 4D ensembles derived from Molecular Dynamics (MD) trajectories. The server offers a team working in different locations a single URL to share and discuss structural data in an interactive fashion, with the possibility to use it as a live figure for scientific papers. The web tool allows an easy upload of structures and trajectories in different formats. The 3D representation, powered by NGL viewer, offers an interactive display with smooth visualization in modern web browsers. Multiple structures can be loaded and superposed in the same scene. 1D sequences from the loaded structures are presented and linked to the 3D representation. Multiple, pre-defined 3D molecular representations are available. The powerful NGL selection syntax allows the definition of molecular regions that can be then displayed using different representations. Important descriptors such as distances or interactions can be easily added into the representation. Trajectory frames can be explored using a common video player control panel. Trajectories are efficiently stored and transferred to the NGL viewer thanks to an MDsrv-based data streaming. The server design offers all functionalities in one single web page, with a curated user experience, involving a minimum learning curve. Extended documentation is available, including a gallery with a collection of scenes. The server requires no registration and is available at https://mmb.irbbarcelona.org/3dRS.

РАСЧЕТ ИНДЕКСА КАЧЕСТВА ВОЗДУХА И ОЦЕНКА ЕГО ИНФОРМАТИВНОСТИ ДЛЯ РОССИЙСКИХ УСЛОВИЙ ПО ДАННЫМ МОНИТОРИНГА В МОСКВЕ

An overview of methods for calculating air quality indices (AQIs) widely used abroad to provide the population with information on air quality is presented. Foreign AQIs are used in available mobile applications, in interactive global display of air quality, including the territory of the Russian Federation. In Russia, AQI has not yet been used to inform the population. Taking into account the principles of grading the classes of foreign indices, a scheme for calculating the Russian variant of the index AQI-R using Russian air quality standards is proposed. The comparison of AQI based on the European Union scheme (AQI-EU) and AQI-R calculated from observations in Moscow showed that according to the EU scheme, the air quality assessment is stricter and more often indicates poor air quality. The differences in the estimates are associated with excessive requirements for the concentration of PM10 and PM2.5 in the AQI-EU. For the development and adoption of the national AQI, it is necessary to take into account Russian priorities in assessing air quality and regional features of air pollution.

Impact of hydration on vocal loading using phonetogram measures

&lt;p&gt;&lt;strong&gt;Background:&lt;/strong&gt; Vocal loading is a phenomenon that affects the vocal folds and voice parameters. Prolonged vocal loading may cause vocal fatigue. Hydration is one of the easiest precautions to reduce the effect of vocal loading. Voice range profile is an analysis of a participant’s vocal intensity and fundamental frequency ranges. Speech range profile is a graphical display of frequency intensity interactions occurring during functional speech activity. Phonetogram software can analyse VRP and SRP.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods:&lt;/strong&gt; Total sixty normophonic participants (thirty male and thirty female) were included in this study. Phonetogram, version 4.40 by Tiger DRS, software used to measure the voice range profile and speech range profile. For VRP, participants were asked to produce vowel /a/ and a passage reading task was given for SRP measurement.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results:&lt;/strong&gt; All sample recording were done at pre vocal loading task, VLT and after hydration. Parameter that were used to measure the effects were Fo-range, semitone, max-F, min-F, SPL range, max-I, min-I, area (dB). Result showed that after VLT all other parameters like Fo-range, semitone, max-F, min-F, SPL range, max-I, min-I, area (dB) in VRP and SRP were reduced except min-F VRP in male, min-I VRP and min-I SRP in both male and female participants. After hydration all other parameters were improved except max-F VRP and min-F VRP in female, max-I VRP, min-F VRP and area VRP.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusions:&lt;/strong&gt; This study concluded that vocal loading has negative impact on vocal fold tissue and mass. &lt;/p&gt;

Comparing regression modeling strategies for predicting hometime

BackgroundHometime, the total number of days a person is living in the community (not in a healthcare institution) in a defined period of time after a hospitalization, is a patient-centred outcome metric increasingly used in healthcare research. Hometime exhibits several properties which make its statistical analysis difficult: it has a highly non-normal distribution, excess zeros, and is bounded by both a lower and upper limit. The optimal methodology for the analysis of hometime is currently unknown.MethodsUsing administrative data we identified adult patients diagnosed with stroke between April 1, 2010 and December 31, 2017 in Ontario, Canada. 90-day hometime and clinically relevant covariates were determined through administrative data linkage. Fifteen different statistical and machine learning models were fit to the data using a derivation sample. The models’ predictive accuracy and bias were assessed using an independent validation sample.ResultsSeventy-five thousand four hundred seventy-five patients were identified (divided into a derivation set of 49,402 and a test set of 26,073). In general, the machine learning models had lower root mean square error and mean absolute error than the statistical models. However, some statistical models resulted in lower (or equal) bias than the machine learning models. Most of the machine learning models constrained predicted values between the minimum and maximum observable hometime values but this was not the case for the statistical models. The machine learning models also allowed for the display of complex non-linear interactions between covariates and hometime. No model captured the non-normal bucket shaped hometime distribution.ConclusionsOverall, no model clearly outperformed the others. However, it was evident that machine learning methods performed better than traditional statistical methods. Among the machine learning methods, generalized boosting machines using the Poisson distribution as well as random forests regression were the best performing. No model was able to capture the bucket shaped hometime distribution and future research on factors which are associated with extreme values of hometime that are not available in administrative data is warranted.

Users’ Content Memorization in Multi-User Interactive Public Displays

ABSTRACT In this study, we investigate users’ content memorization in interactive public displays that can be simultaneously used by multiple persons. We designed a system in which interaction would enhance users’ content memorization, and that allows multiple users to collaborate on interaction. We installed the system in a university campus and conducted a field study on passersby. We interviewed the users who continued interacting with the system to reach or pass a certain phase, and evaluated users’ content memorization from the accuracy of displayed information that was unconsciously memorized. As a result, the users who interacted with the display had a significantly higher correct answer rate for detailed questions about the displayed information than those who only watched a video on the display, which suggests that our interactive public display resulted in better content memorization. It is also shown that displayed information was efficiently delivered to many users by enabling multiple persons to interact with the display.

An interactive gravitational-wave detector model for museums and fairs

In 2015, the first observation of gravitational waves marked a breakthrough in astrophysics and in technological research and development. The discovery of a gravitational-wave signal from the collision of two black holes, a billion light-years away, received considerable interest from the media and public. We describe the development of a purpose-built exhibit explaining this new area of research to a general audience. The core element of the exhibit is a working Michelson interferometer: a scaled-down version of the key technology used in gravitational-wave detectors. The Michelson interferometer is integrated into a hands-on exhibit, which allows for user interaction and simulated gravitational-wave observations. An interactive display provides a self-guided explanation of gravitational-wave related topics through video, animation, images, and text. We detail the hardware and software used to create the exhibit, and discuss two installation variants: An independent learning experience in a museum setting (the Thinktank Birmingham Science Museum) and a science-festival with the presence of expert guides (the 2017 Royal Society Summer Science Exhibition). We assess audience reception in these two settings, describe the improvements we have made given this information, and discuss future public-engagement projects resulting from this work. The exhibit is found to be effective in communicating the new and unfamiliar field of gravitational-wave research to general audiences. An accompanying website provides parts lists and information for others to build their own version of this exhibit.

Abstract 248: A novel PubMed visualizer using human-computer interaction technology: EEEvis.com

Abstract PubMed is the most widely used database and search-engine in biomedical and healthcare field. It has evolved more powerfully using Best Match algorithm. However, users still have several difficulties to ‘catch' their target papers in limited time, which fundamentally originates from the conventional two-dimensional ‘top-down' display method of search results. We conducted a survey for 76 medical experts (including oncologists, surgeons, gastroenterologists, psychiatrists, et al) about their behaviors and difficulties in using PubMed. The most common ‘unmet needs' of users were (1) the rank of citation counts or impact factors, (2) more three-dimensional and interactive display of search results, and (3) author rank and network. Reflecting the results above, we developed a novel PubMed visualizing program, EEEvis version 1.0 (medical and healthcare evidence visualizer), and launched it on www.EEEvis.com. The basic operating principle of EEEvis version 1.0 is to visualize the metadata of PubMed and PubTator (a web-based text mining-tool) using (1) advanced filter tools, (2) a scatter &amp; box plot using citation counts over years, (3) an author map reflecting the ranks and networks, and (4) a reinforced search list (Table 1). All the data crawling is based on the API (application programming interface) of PubMed and PubTator. To computing and visualizing the crawled metadata, we constructed two servers; a hidden station server and an open UI (user interface) server. In the interim result of our ongoing pilot study in searching oncology-related literatures, the two quantitative factors including (1) time to ‘catch' the target paper and (2) success rate finding the required paper showed significant improvement. Other qualitative factors including (3) user convenience, (4) interactivity, and (5) willingness to use EEEvis next time showed good results. Now we are developing EEEvis version 2.0 using text-mining technology and applying multiple patents for this program. Comparison between EEEvis and PubMedProgramsEEEvisPubMedFilter sectionBy article typeYesYesBy publication yearYesYesBy citation count of paperYesNoBy impact factor of journalYesNoInteraction section using Brushing &amp; Linking techniqueScatter plot of citation counts by yearYesNo(with box plot of citation counts by year)YesNoMap of author networkYesNoList sectionSort by best matchYesYesSort by most recentYesYesSort by citation countYesNoSort by author or journalNoYesCitation count of each paperYesNoImpact factor of each journalYesNoPubTator informationYesNoData crawlingHow to crawl results from Pubmed serverIndirect using APIDirectLimit of result numbers10,000 (best matched)NoneUser experience in searching cancer-related keywords in pilot study (ongoing)Time to display results after entering keywordsNot inferiorPromptTime from visualizing results to finding the required paperSuperior(= faster)InferiorSuccess rate of finding the required paper after visualizing the resultsSuperiorInferior Citation Format: Jong-chan Lee, Brian J. Lee, Hyunjoo Song, Changhee Park, Chan-Young Ock, Yuna Youn, Hyojae Sung, Sungjin Woo, Jaihwan Kim, Jin-Hyeok Hwang. A novel PubMed visualizer using human-computer interaction technology: EEEvis.com [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2021; 2021 Apr 10-15 and May 17-21. Philadelphia (PA): AACR; Cancer Res 2021;81(13_Suppl):Abstract nr 248.

Foreign language learning and identity reconstruction: understanding of interaction of the self

This study focuses on the processes &amp; relationships between foreign language learner's identity and interaction foreign language proficiency associated with learning English in private language institutes in Iranian context, especially, participants' beliefs about languages &amp; participants' views about the language question are analyzed. This analysis integrates the speaker's practices and beliefs to issues of identity construction and negotiation that are observable in two contexts. Some English as a foreign language learners from 3 language institute in Tehran were picked to participate in the study, based on stratified sampling. The instrument were a 30-item likert-scale questionnaire on motivation types &amp; social responsibility, individual development, information medium, ... 24 likert-scale questionnaire on self-identity changes, such as, self‌-confidence change, subtractive change, productive change, results reveal that how language practices in human interaction display and construct identity and correlation analysis indicated that motivation types of self-identity changes and signal participant's negotiations of their own identities of these or others. Instrumental orientations related with learner's self-confidence change.

(Dis)play: Paper Showrooms of Soviet Labor

This article analyzes how the avant‐garde display techniques of the early Soviet period were remediated into the book format to transform visual literacy into production skills. Illustrated children's books adopted multi‐media visual techniques originally found in exhibitions to transform the printed page into a dynamic tool for teaching children how to become the workers of the future. In the 1920s and 1930s, Soviet displays were unrivaled propaganda tools, capable of activating and mobilizing visitors as much as modern media such as cinema and radio. Because of their reliance on a combination of tactile, visual, auditory and physical communication strategies, exhibitions offered Soviet authors and illustrators a set of formal and narrative strategies that responded to new theories of child‐reader perception in the field of Soviet pedagogy. By analyzing the representational language of At the Exhibition against the background of El’ Lissitzky's demonstration room, I show that thematic and formal aspects of exhibition display transform the book into a visual template and a road‐map that gradually leads the reader from observing to making Soviet things. Similarly, in analyzing the role of text and image in the preschool picture book Our Review I show how curatorial strategies typical of dioramas are embedded in the book medium and transform it into an interactive display. Radically transformed into a portable diorama, the book becomes a training device directs the child‐reader to inscribe his or her actions into a system of collectively enforced social practices. Through the book‐turned‐display, Soviet children were trained into new visual practices that promised to transform them into producers, organizers and surveyors of their own culture.

Etiometry’s T3 Heuristic Evaluation

Five students and a Human Factors Psychology professor participated in a heuristic evaluation of clinical decision support software, called T3, to help improve usability. T3 gathers physiological monitoring data from a variety of sources, e.g. pulse oximeters, electrocardiographs, and ventilators, and uses the data to compute two novel risk indexes. To effectively support clinical decision-making, T3 should present the patient data it collects, as well as the risk indexes that it computes, in an easy to understand interactive display. The evaluation identified 38 potential usability issues, about half of which were deemed ‘not an issue’ or rated as minor. The team developed 11 recommendations for changes to help improve usability of T3. Given the volume and complexity of the information that T3 displays, this is a short list, suggesting relatively good usability. However, none of the evaluators has the clinical training or experience of typical users; it is possible that clinical users would identify additional usability issues.

P‐14: Student Poster: Optical Sensor with New Driving Method Using Amorphous Silicon Thin‐Film Transistors to Increase Three Types of Sensed Light for Large Interactive Displays

This paper presents optical sensors with a new driving method based on hydrogenated amorphous silicon thin‐film transistors (a‐Si:H TFTs) covered with the color filters to increase three types of sensed light. The measurement results indicate that the differences of output voltage are all above 16.5 V, proving that the proposed sensors are suitable for integrating large interactive display.

A real‐time interactive rendering method for 360° tabletop integral imaging 3D display

AbstractIn this paper, a rendering method for interactive tabletop integral imaging 3D display is proposed to present interactive 3D graphics to users 360° around the display in real‐time. By transforming the viewpoint plane and the elemental image array (EIA) plane with a parallel backward ray‐tracing technique according to the recognized gestures, a high‐efficient rendering for interactive 3D contents can be achieved, thus, the 3D graphics can be manipulated to be displayed on the tabletop in real‐time. Compared with the previous methods that all viewpoint images should be generated first, the proposed method can generate the interactive EIAs that contain all viewpoint information directly, which makes the interactive rendering more efficient. A gesture‐based interactive tabletop integral imaging 3D display prototype is built using an 8‐K (7680 × 4320) pixel resolution LCD. Experimental results show that the proposed interactive rendering method can achieve a short response time of less than 40 ms and high recognition accuracy of over 95% for different spatial hand gestures.

Design and Implementation of Online Examination System based on MSVS and SQL for University Students in Iraq

The transfer of knowledge and skills is a process that is closely linked to the measurement of its usefulness. It's hard to imagine teaching without considering the results and evaluation of students. At the same time, the current education system is based on a longstanding traditional paradigm. The aim of this article is to propose a new digital review system based on Microsoft visual studio (MSVS); it is the only one of its kind in terms of application versatility and also features professional interfaces for the interactive display of questions and answers. In our school, we have systematically assessed this program to determine the system performance of teaching staff and students, the findings of this study demonstrate the assumption that students were prepared for this type of knowledge; the evaluation result of the propose exam system outperforms conventional system about approximately 80%.

Imaging Goa’s B2B sales dilemma: provoke or justify

Learning outcomes Appreciate changing contours of business to business (B2B) purchase and how sellers should adapt their selling style and promotions. Case overview/synopsis In the past two decades, imaging Goa (IG) and Azim Shaikh had weathered many business crises. However, as the COVID 19 pandemic unfolded, he became aware of critical fault lines in his B2B selling model. IG offered customised digital display solutions, but its primary source of revenue was B2B selling of interactive flat panel display (IFPD) devices. It, respectively, controlled about 35% and 3% of the market share of IFPD sales, respectively, in Goa and western India. IG’s success in the B2B segment was because of Shaikh’s ability to build strong relationships and customised solutions in an emerging market context. To deal with the COVID pandemic, the Indian Government had imposed a country-wide lockdown, which forced organisations to adopt work from home. This, in turn, created a pull for IFPDs. Yet, very soon Shaikh realised, in the new normal, there was a growing mismatch between his selling efforts and outcomes. Though overall revenue had not fallen much, but the veteran seller had started doubting his tried and tested relational solution selling model. Case dilemma involves the selection of appropriate selling approaches e.g. solution, insight or tiebreaker selling for different situations. This case also offers an opportunity to discuss, how to use online channels to complement B2B selling. Complexity Academic Level This teaching case study is suitable for the graduate-level programme in marketing management. Supplementary materials Teaching Notes are available for educators only. Subject code CSS 8: Marketing

Fusing Interactive Learning and Display Spaces in a Heritage Museum: The Role of Architecture

The technological advancement of our age has shaped users’ social, economic, physical, and psychological behaviours, creating patterns that have rippled over every sector of social life. The internet and other technological advancement have made life simpler and better for many people. The museum, a cultural institution responsible for preserving and presenting the tangible and intangible cultural heritage of man, has been unyielding to adapting to the march of technology as they appear to be on both sides of the extreme. Not until the focus shifted from object care to incorporating visitor care. Over the years, museum exhibitions have evolved with the advancement of technology. The display of cultural objects now utilise virtual navigation techniques, augmented reality (AR), virtual reality (VR), and the internet, with an aim of enriching the museum experience for visitors. This trend has influenced museum development and user behaviour. Architectural design plays a vital role in linking interactive learning and traditional displays in heritage museums. This paper focuses on the role of architecture in the use of interactive learning and display technologies in heritage museums, and how this role can accentuate the desire for museum users to have rich experiences.