Design Tool Research Articles

Unlocking Success: Community Engagement for Enhanced HIV Care Outcomes.

Background: Though social determinants are the primary drivers of health, few studies of people living with HIV (PLWH) focus on non-clinical correlates of insecure and/or fragmented connections with the care system. Our team has used linked clinical and multisector non-clinical data to study how residential mobility and connection to social services influence the HIV care continuum. We engage a diverse group of invested patients and community members to guide and inform this research. Our objective is to generate stakeholder-informed, research-based interventions that are relevant to the community, and to share our engagement approach and findings so that other researchers can do the same. Methods: Our research team partnered with the Indiana Clinical and Translational Sciences Institute's Research Jam, to develop and implement a human-centered design research plan to engage with individuals with lived experience relevant to our research. We recruited a panel composed of PLWH as well as clinicians and individuals from agencies that provide medical and non-medical services to PLWH in Marion County, Indiana. We used a variety of human-centered design tools and activities to engage individuals during six sessions, with results informing our engagement and research activities. Results: Since the inception of the project, 48 individuals have joined the stakeholder panel. Thirty-five are actively engaged and have participated in one or more of the six sessions conducted to date. The panel helped guide and prioritize analyses, aided in identification of data missing from our ecosystem, helped interpret results, provided feedback on future interventions, and co-presented with us at a local health equity conference. Conclusions: We utilized community engagement to expand the scope of our research and found that the process provided value to both stakeholders and research team members. Human-centered design enhanced this partnership by keeping it person-centered, developing empathy and trust, increasing stakeholder retention, and empowering stakeholders to collaborate meaningfully with the research team. The use of these methods is essential to conducting relevant, impactful, and sustainable research. We anticipate that these methods will be important for academic and public health researchers wishing to engage with and integrate the ideas of community stakeholders.

Analysis and Design of Total Harmonic Distortion Performance in Grid‐Tied Single‐Phase Voltage Source Inverters Through Closed‐Loop Modeling

ABSTRACTThis paper presents a methodology to estimate, in the design stage, the total harmonic distortion of the current injected into the power grid by two‐stage voltage source inverters (VSI). As such inverters operate in a closed loop, the quality of the grid current is highly dependent on the dynamics of the control loops. Thus, it is necessary to focus on an approach to model the behavior of the grid current considering the closed‐loop disturbances. The proposed approach allows deriving an equation to predict the behavior of the current injected into the grid and estimate its harmonic distortion, becoming an important tool for optimal design of grid‐connected inverters. To validate the accuracy of the developed methodology, experimental results are presented in different operating scenarios.

Ergonomics in bronchoscopy.

This study examines ergonomic considerations in bronchoscopic procedures, surveying existing research, injury rates, contributing factors, and practical ergonomic controls. The field of ergonomics examines the relationship between workers and their workplace to enhance productivity and minimize injuries. Bronchoscopists may face ergonomic hazards due to extended periods of maintaining fixed positions, repetitive actions, and the design of both tools and procedure spaces. Studies on the ergonomics of bronchoscopy have revealed a wide range of musculoskeletal issues among practitioners. Those new to the field, including trainees and early-career professionals, may be particularly vulnerable to injuries compared to their more experienced counterparts. Implementing a systematic approach, such as that proposed by the National Institute for Occupational Safety and Health, could help reduce physical stress, discomfort, and the likelihood of musculoskeletal disorders for bronchoscopists. Bronchoscopists increasingly face ergonomic issues in their practice. Despite available measures to address these problems, the field lacks uniform ergonomic guidelines for bronchoscopy. To safeguard bronchoscopists' health and safety from the outset of their careers, more studies and training focused on ergonomics in bronchoscopy are needed.

An Extensive Study of Metal Matrix Composites and their Various Properties for Different Uses

This study examines the creation and development of composite materials, from conventional techniques to their innovative uses in numerous industries. Composite materials that are robust, versatile, and resilient have advanced significantly, especially with the application of nanotechnology and hybrid fiber reinforcements. Composite materials are difficult to machine due to their anisotropic and non-homogeneous structure, as well as the high abrasiveness of their reinforcing parts. This typically results in the workpiece becoming damaged and the cutting tool wearing down very rapidly. On composite materials, traditional machining methods such as turning, drilling, and milling can be applied with the appropriate tool design and operating parameters. An overview of the various issues related to the conventional machining of the main types of composite materials is given in this work. This article examines novel matrix materials, forms of reinforcement, and production procedures to show how advanced metallic matrix nano composites and fiber-reinforced polymers are replacing traditional composites. Special emphasis is given to the strict manufacturing conditions in addition to the homogenous dispersion of nanoparticles and damage-free machining of fiber composite materials. The essay also discusses how sustainable alternatives, including reinforcements made of natural fibers, affect the ecosystem. This study aims to offer a comprehensive analysis and case studies.

Methodology of Multiple-Criteria Decision Making for Selecting a Refrigerant to Be Used in Commercial Refrigeration Equipment

This paper presents the application of the multiple-criteria decision-making (SAW) method for selecting the optimum refrigerant for the refrigeration systems of commercial cooling equipment used in gastronomy furniture, which is paramount in storing food under optimal conditions. The analysis focused on comparing different refrigerants, including natural refrigerants such as R744 (carbon dioxide) and R290 (propane) and synthetic refrigerants such as R455A, R449A, and R452A. As a result of the analysis using the SAW method, the refrigerant R455A was found to be the best solution. This choice resulted from the consideration of various decision criteria, such as energy efficiency, environmental impact, operating costs, and technology availability. R455A stands out as a synthetic refrigerant that provides high energy efficiency with minimal environmental impact. Its use supports sustainability goals by reducing greenhouse gas emissions and electricity consumption, which is crucial given the modern regulatory requirements and environmental standards. This study offers a practical decision-making tool for commercial refrigeration equipment designers and manufacturers, supporting them while selecting the optimal technological solutions. The choice of refrigerant R455A addresses the need to integrate energy efficiency, environmental protection, and cost-effectiveness in the process of designing modern refrigeration systems for catering furniture.

Patient Selection in UKA: How to Make the Diagnosis for Success in the Clinic

The success of unicompartmental knee arthroplasty (UKA) for monocompartmental knee arthritis is reliant on appropriate patient selection. This article addresses the clinical challenges that may arise when attempting to identify patients likely to have favorable outcomes following UKA. Despite advancements of implant design and accuracy of surgical tools, considerable challenges persist in predicting patient specific success and satisfaction following UKA. Variation in patient characteristics, healthcare practices, and outcomes in the literature make the establishment of a strict set of universal guidelines difficult. This article will provide a comprehensive overview of the current landscape of patient selection for UKA, acknowledging the existing clinical dilemmas and challenges faced by clinicians and proposing avenues for future research including the integration of patient predictive models, advanced imaging, and artificial intelligence to enhance predictive accuracy.

Design and Art Tools Formation of Visual Context in Modern Anthropogenic Environment

The purpose of the article is to establish the design and artistic means of forming the cultural-artistic context of modern anthropogenic space. The research methodology involved the use of synthesis and analysis methods with the involvement of interdisciplinary connections (architecture, art history, cultural studies, psychology, design), which made it possible to develop the available theoretical and practical experience on the subject of the article; the method of theoretical generalisation was used to formulate conclusions regarding the outlined problem. The scientific novelty of the article lies in the fact that it actualises the issue of the role of the visual and plastic language of design in the formation of the communicative and cultural content of the anthropogenic environment. Conclusions. With the change of socio-cultural, political and economic conditions, people's requirements for their environment also change. Design and artistic techniques make it possible to dynamically adjust the visual context of the space, to modernise it. The visual plastic design language of the modern anthropogenic environment is presented in artistically decorated stationary and moving objects, their parts, which add character and individuality to it, cause certain emotions in people who interact with such a space. The presence of murals, graffiti, street stencils, sticker art, aerosol art, posters, photo wallpapers, knitted graffiti, mosaics, LED art, media facades, sculptures, video mapping contributes to the formation of a new visual context of the environment, 3D images. Unsystematic, chaotic formation of the visual context of the space can disrupt its artistic integrity. It is worth considering the location of the object, its role in the general structure of the environment, architectural, historical or ethnic context.

Implementation of the Prototype Method in Design E-Commerce New World Distro Store

Distro is a place to sell clothes that is currently favored by many people. Both children and adults. This distribution itself has various types of clothing for children and adults. New World distribution provides various types of clothing such as shirts, pants, jackets, hoodies, and others. The transaction process on distros is still done manually by coming directly to the store, for that it would be better if the distro had a website as a place to sell and promote. Researchers will use the Prototype method as a development method that will be used when designing and building applications, while the research method that will be used is a descriptive method through a qualitative approach. Researchers collected data through direct observation, interviews and literature study. The design tools in this study will use the Unified Modeling Language (UML), namely, use case diagrams, class diagrams, and activity diagrams.

Improving theories of change in conservation projects

AbstractTheory of change has become a common tool in project design because it helps teams agree on hypothesized causal pathways to a desired goal and examine their underlying assumptions. Yet, a consensus has not emerged on the specific steps and components of a theory of change. What constitutes a theory of change? Using 22 theory of change publications, we did a structured analysis of the components of a theory of change. Where there was substantial agreement among the publications on a specific component of a theory of change, we included it in the first iteration of our approach. We then ordered the components in a logical sequence, developed guidance for each component, tested them with project teams, and revised them in an iterative process. We tested and refined our guidance over 3 years with 73 teams from 18 countries. Here, we share our learning and recommendations for those interested in developing a robust theory of change for a conservation project.

Design of a Guest Face Detection Tool Using ESP32-CAM Based on Internet of Things (IoT)

This research develops an Internet of Things (IoT)-based guest face detection tool using ESP32-CAM to create a digital guestbook archive. The device distinguishes between guests and employees, with employee face data stored in a GitHub repository. When the device detects an unfamiliar guest face, a notification and photo are sent to a Telegram bot. If an employee's face is detected, a notification of the employee's name is sent to the Telegram bot. The method used is prototyping and the test results show that this tool is effective in detecting and digitally archiving guest visits.

The process of developing an augmented reality (AR) tool for knowledge translation on climate change-related experiences among youth in Kenya

This report details a qualitative methodological approach of developing an Augmented Reality (AR) tool which integrates digital storytelling for context-specific, accessible, scalable participatory research knowledge translation on climate-related sexual health experiences among youth (aged 16-25 years) in Kenya. AR, which engages audiences through virtual images overlayed on the real world in real-time, enhances learning and knowledge retention. This suggests the potential for using this increasingly accessible technology in knowledge translation, despite such use being understudied. Our AR tool meaningfully incorporates seven digital storytelling videos made by youth in Kenya through a study in 2023, to amplify youth voices while illustrating complex pathways between four climate-related factors (drought, floods, extreme heat, and excess winds) and three HIV vulnerabilities (gender-based violence, early marriage, and transactional sex). The aim of this paper is to describe the design of an AR tool for knowledge translation, youth empowerment, and health promotion, and to outline how it can be harnessed for sexual health and climate change education to inform future knowledge translation approaches with youth climate-affected issues.

A Literature Review on the Audio Preservation of Jin Opera through Multi-Channel AR Design Tools

A Literature Review on the Audio Preservation of Jin Opera through Multi-Channel AR Design Tools

Static IRdrop Analysis Using Open Source CAD Software

This paper investigates the open source static IRdrop analysis tool, PDNSim, which is part of the OpenROAD computer-aided design tool. The main approach used for static IRdrop analysis is discussed, namely the compilation of an equivalent circuit model used for further calculations. The results of static IRdrop analysis obtained using PDNSim are compared with the results obtained using modern commercial CAD tool and the error of the obtained analysis results is evaluated.

Computational Stabilization of a Non-Heme Iron Enzyme Enables Efficient Evolution of New Function.

Deep learning tools for enzyme design are rapidly emerging, and there is a critical need to evaluate their effectiveness in engineering workflows. Here we show that the deep learning-based tool ProteinMPNN can be used to redesign Fe(II)/αKG superfamily enzymes for greater stability, solubility, and expression while retaining both native activity and industrially relevant non-native functions. This superfamily has diverse catalytic functions and could provide a rich new source of biocatalysts for synthesis and industrial processes. Through systematic comparisons of directed evolution trajectories for a non-native, remote C(sp3)-H hydroxylation reaction, we demonstrate that the stabilized redesign can be evolved more efficiently than the wild-type enzyme. After three rounds of directed evolution, we obtained a 6-fold activity increase from the wild-type parent and an 80-fold increase from the stabilized variant. To generate the initial stabilized variant, we identified multiple structural and sequence constraints to preserve catalytic function. We applied these criteria to produce stabilized, catalytically active variants of a second Fe(II)/αKG enzyme, suggesting that the approach is generalizable to additional members of the Fe(II)/αKG superfamily. ProteinMPNN is user-friendly and widely accessible, and our results provide a framework for the routine implementation of deep learning-based protein stabilization tools in directed evolution workflows for novel biocatalysts.

Application of diamond abrasive tools in the processing of technical ceramics in parts of mining machines

Technological development of mining equipment is largely initiated by the improvement of technologies and tools for its production, including in the field of surface treatment quality, which, in turn, determines the reliability and productivity of machines. The use of technical ceramics in designing parts and assemblies of mining machines allows for significantly improved technical and produc-tion characteristics since the quality of the parts' surface treatment is traditionally carried out with diamond-containing tools. The dia-mond tools with ceramic bonds have the highest grinding perfor-mance at the abrasive shaping of ceramics. The tribotechnical characteristics of tools made of a material with a ceramic structure hardened with microdipersed diamond grains are investigated in this work. On the basis of the classical approach to the deformation of rough surfaces, a model has been constructed that makes it possible to estimate the influence of the structural components of a dia-mond mineraloceramic tool on the wear of technical ceramics. The relations for calculation of grinding productivity, diamond content in the worn layer of the abrasive tool and the value of specific dia-mond consumption have been obtained. Experimental studies con-firmed the theoretical conclusions. It has been established that the greatest influence on grinding productivity is exerted by diamond granularity, loading and speed modes; diamond concentration significantly determines the relative wear resistance of the abrasive tool. The obtained relations will be useful in the design of diamond-containing tools for processing technical ceramics, which is increas-ingly used in the design of mining machines since its market is grow-ing dynamically around the world.

Analytical calculation approach for rocket nose cone structure with orthotropic material

The Authors of this research developed an analytical calculation method to estimate the strength of nose cone structures made of orthotropic materials, which were crucial components in aircraft and spacecraft. Strength analysis of nose cones had been comprehensively addressed for isotropic materials; however, the lack of efficient approaches for orthotropic materials presented a challenge. In this research, a new analytical method was proposed, combining membrane stress theory for isotropic materials with classical laminate theory for orthotropic materials. This approach enabled the determination of stresses on the nose cone shell structure in both meridional and circumferential directions in an efficient and straightforward manner. The analysis results indicated that the developed analytical method exhibited stress distribution trends similar to those obtained using the Finite Element Method. Stresses in the +45° and –45° direction, as well as in-plane shear stress and Tsai-Wu failure indices, showed trend similarity between the two methods. Despite specific numerical differences in the calculation results, these consistent trends suggested that the analytical method could serve as a tool for the preliminary design of a nose cone structure with a similar configuration analyzed in this study.

Flexural behaviour and shear capacity of RC flat plate sections during fire exposure

PurposeFire safety is a pivotal requirement in building codes. Prescribed design criteria have been the norm to achieve it, which imposes limitations on engineers, including the inability to accommodate new solutions/materials. The shift towards performance-based design offers the potential to address shortcomings of the prescribed design. However, this shift also significantly increases the workload on structural engineers without a corresponding increase in their engineering fees. Simplified design tools are needed to assist engineers in this transition.Design/methodology/approachThe paper is divided into sections investigating equivalent standard fire duration, thermal deformations, flexural behaviour and shear capacity of flat slabs when exposed to fire. The first section conducts a parametric study correlating equivalent and realistic fire durations using the average internal temperature profile (AITP) method, resulting in statistical equations estimating equivalent fire duration. The second section evaluates thermal deformations and flexural behaviour through a parametric study considering various parameters. This section results in statistical equations estimating thermal deformations and flexural behaviour of flat slab sections during fire exposure. The final section focuses on shear capacity, developing simplified heat transfer formulas and statistical equations predicting compression zone depth reduction. The section presents methodologies predicting flat slab sections' one-way and two-way shear capacities during fire exposure.FindingsStructural engineers can use the proposed methods for daily design work without applying complex heat transfer calculations. When the equivalent standard fire duration is utilized, a flat slab’s thermal deformations, flexural behaviour and shear capacity under an actual fire condition can be calculated. As such, the methods would be highly beneficial in assessing the structural integrity of a building during an active fire incident.Originality/valueThe paper provides engineers with the tools required to evaluate the safety of flat slab sections during fire exposure. The methodologies presented in the paper enable engineers to use performance-based design for slab sections by (1) converting any real fire scenario to a standard fire with an equivalent duration, (2) assessing their thermal behaviour, (3) evaluating their flexural behaviour and (4) evaluating their flexural and shear capacities. The paper concludes with a case study example demonstrating the detailed application of the developed methods.

Conceptual design of an autonomous single-container vessel

The growth of maritime shipping is leading to the creation of larger vessels. However, this expansion in size brings with it several challenges, including the development of maritime infrastructure, the potential for growth in third-world countries, and the emission of greenhouse gases. In response to these challenges, this research explores the feasibility of designing an autonomous ship capable of transporting a single standardized 40 ft. container overseas using mainly passive propulsion methods. Using advanced design tools, including CAD software and CFD simulations, as well as conducting a comprehensive analysis of relevant literature, the designs for a hull and sails were developed, and an overview of the potential active control systems required for autonomous operation was provided. The study also performed an initial analysis of strength, stability, and velocity to validate the design choices. The ship proves to adhere to the basic strength and stability requirements while reaching its maximum hull velocity at certain wind speeds. The results of the study indicate that it is possible to design and manufacture a mainly passively propelled ship capable of transporting a 40 ft. standardized container overseas and rethink the logistics at scale.

Canva Rebranding and Product Photography Training for the Development of MSME Actors in Kenongo Village

The increasing competition in the Micro, Small, and Medium Enterprises (MSMEs) sector, particularly in the culinary field, necessitates effective branding strategies to enhance marketability. Despite the potential of rebranding to improve visibility and customer engagement, many MSMEs lack the skills to create compelling logos and packaging that reflect their brand identity. This study addresses this knowledge gap by implementing a training program in Kenongo Village focusing on rebranding using Canva and product photography. The primary aim of this training was to enhance the design capabilities of 16 MSME participants, particularly those without existing logos or employing simplistic packaging. Post-training assessments indicated a significant improvement in participants' understanding of rebranding concepts and their proficiency in utilizing the Canva application, resulting in logos and packaging that added value to their products and improved their market image. This training introduced participants to digital design tools, fostering a stronger visual identity for their businesses. While some participants experienced technical challenges due to varying levels of digital literacy, the training effectively motivated them to prioritize the development of their brand identity, suggesting that similar initiatives could be beneficial for other MSME groups seeking to enhance their competitiveness in the market. Highlights: Training Impact: Significant improvement in design skills and understanding of branding concepts among participants. Digital Literacy: Varying levels of digital skills presented challenges, highlighting the need for tailored training approaches. Market Competitiveness: Enhanced visual identity can lead to improved product image and broader market reach for MSMEs. Keywords: rebranding, MSMEs, Canva, product photography, culinary sector

The Development of a Fillet Design Tool Based on Light-Weight Marine Diesel Engine Crankshafts

The Development of a Fillet Design Tool Based on Light-Weight Marine Diesel Engine Crankshafts