Hasil untuk "Mechanical drawing. Engineering graphics"

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DOAJ Open Access 2026
Rethinking Assessment in Event-Based Design Education

Sonia Massari, Diletta Damiano, Aureliano Capri

Event-Based Design Education (EBDE) comprises intensive, experiential learning formats through which students engage with complex and transdisciplinary challenges in collaboration with multiple stakeholders. These educational settings foster critical, creative, and relational competencies that are increasingly central to contemporary design practice. Despite their growing diffusion, EBDE initiatives remain insufficiently examined from an assessment perspective, particularly with regard to their educational impact over time. This paper addresses this gap by proposing an integrated and adaptive assessment model tailored to the specific characteristics of Event-Based Design Education. The model embeds assessment within the learning process, enabling the systematic collection of data and feedback across distinct temporal phases. Rather than framing assessment as a summative or external activity, the proposed approach conceptualizes it as an ongoing, situated practice. The contribution of this study lies in demonstrating how assessment can account for the relational, processual, and transformative dimensions of EBDE, which are often overlooked by conventional project-based or experiential learning evaluation frameworks. The paper advances current debates on assessment in design education and supports the development of flexible, embedded evaluation approaches capable of enhancing both the educational relevance and accountability of event-based design learning environments.

Mechanical drawing. Engineering graphics
arXiv Open Access 2026
GENAI WORKBENCH: AI-Assisted Analysis and Synthesis of Engineering Systems from Multimodal Engineering Data

H. Sinan Bank, Daniel R. Herber

Modern engineering design platforms excel at discipline-specific tasks such as CAD, CAM, and CAE, but often lack native systems engineering frameworks. This creates a disconnect where system-level requirements and architectures are managed separately from detailed component design, hindering holistic development and increasing integration risks. To address this, we present the conceptual framework for the GenAI Workbench, a Model-Based Systems Engineering (MBSE) environment that integrates systems engineering principles into the designer's workflow. Built on an open-source PLM platform, it establishes a unified digital thread by linking semantic data from documents, physical B-rep geometry, and relational system graphs. The workbench facilitates an AI-assisted workflow where a designer can ingest source documents, from which the system automatically extracts requirements and uses vision-language models to generate an initial system architecture, such as a Design Structure Matrix (DSM). This paper presents the conceptual architecture, proposed methodology, and anticipated impact of this work-in-progress framework, which aims to foster a more integrated, data-driven, and informed engineering design methodology.

en cs.SE, cs.AI
arXiv Open Access 2026
Effects of PLGA coating on biological and mechanical behaviors of tissue engineering scaffolds

A. M. Maadani, F. Davoodian, E. Salahinejad

Scaffolds have a key role in the clinical success of tissue engineering for the regeneration of damaged tissues. Their bio-performance is often described as the extent to which they can provide an extracellular matrix-like environment for cells embedded where their function and growth can effectively continue. For this purpose, tissue engineering scaffolds should exhibit biodegradability, biocompatibility, bioactivity, delivery, and mechanical performance. The use of polymer coatings, especially poly(lactic-co-glycolic acid) (PLGA), on tissue engineering scaffolds has been found to be one of the most effective methods to improve the scaffold properties. This paper reviews the techniques used to coat tissue engineering scaffolds with PLGA and its effects on the mechanical characteristics, biodegradability, biocompatibility, Molecular delivery, and osteointegration of the scaffolds. It is concluded that apart from apatite-formation ability, all bio-functionalities can be tuned through PLGA coatings. This reflects the great potential of this modification approach to be used in tissue regeneration and therapeutic delivery applications.

en physics.bio-ph, cond-mat.mtrl-sci
DOAJ Open Access 2025
بررسی میزان تطابق رنگ در بن‌سازه‌های تجارت الکترونیک

میثم عراقی, مهدی صفی, علیرضا محمودی

این پژوهش عدم تطابق رنگ را در بن‌سازه‌های تجارت الکترونیک با استفاده از کارت رنگ استاندارد و شرایط مشاهده شبیه‌سازی‌شده روی دو نمایشگر مختلف بررسی می‌کند. تصاویر محصولات با یک دوربین گوشی هوشمند تحت نور استاندارد D65 ثبت گردیدند و سپس روی نمایشگرهای Samsung SyncMaster P20500 (نمایشگر مصرفی) و EIZO CG243W (نمایشگر حرفه‌ای) نمایش داده شدند. اختلاف رنگ بین رنگ واقعی نمونه‌ها و رنگ نمایش‌داده‌شده با طیف‌سنج اندازه‌گیری و بر اساس فرمول ΔE2000 گزارش شد. نتایج نشان داد که میانگین اختلاف رنگ می‌تواند تا ۸ واحد برسد. این مقدار به‌وضوح از آستانه ادراک انسانی فراتر است و ممکن است منجر به نارضایتی مشتری شود. حتی پس از حذف خطاهای ناشی از عکاسی، اختلاف رنگ در برخی رنگ‌ها به‌ویژه رنگ‌های اشباع و تیره همچنان قابل‌توجه باقی ماند. نمایشگر EIZO به‌دلیل واسنجی دقیق‌تر و گستره رنگی بیشتر، عملکرد بهتری از خود نشان داد.

Environmental technology. Sanitary engineering, Mechanical drawing. Engineering graphics
DOAJ Open Access 2025
Game Design Beyond the Game Industry

Ilaria Mariani, Gabriele Ferri, Alberto Calleo

Once considered a niche, almost a subculture, video game design has evolved into a fully realized sector and field of innovation within the Cultural and Creative Industries (CCIs). This Open Debate section of diid. disegno industriale industrial design explores what happens when game design is hybridized with other domains of design and creative practice, both in terms of practical integration and conceptual transformation. As we introduce this volume and the contributions in it, we outline a general panorama spanning four ana- lytic dimensions that recur in the field: theoretical concepts (theories and frameworks that reframe what design is and what it can do), approaches (developmental and participatory processes and models used to guide design work), tools (the technical systems and platforms adopted from game development), and methods (techniques and design heuristics drawn from game practice).

Mechanical drawing. Engineering graphics
arXiv Open Access 2025
A Systematic Literature Review of Software Engineering Research on Jupyter Notebook

Md Saeed Siddik, Hao Li, Cor-Paul Bezemer

Context: Jupyter Notebook has emerged as a versatile tool that transforms how researchers, developers, and data scientists conduct and communicate their work. As the adoption of Jupyter notebooks continues to rise, so does the interest from the software engineering research community in improving the software engineering practices for Jupyter notebooks. Objective: The purpose of this study is to analyze trends, gaps, and methodologies used in software engineering research on Jupyter notebooks. Method: We selected 146 relevant publications from the DBLP Computer Science Bibliography up to the end of 2024, following established systematic literature review guidelines. We explored publication trends, categorized them based on software engineering topics, and reported findings based on those topics. Results: The most popular venues for publishing software engineering research on Jupyter notebooks are related to human-computer interaction instead of traditional software engineering venues. Researchers have addressed a wide range of software engineering topics on notebooks, such as code reuse, readability, and execution environment. Although reusability is one of the research topics for Jupyter notebooks, only 64 of the 146 studies can be reused based on their provided URLs. Additionally, most replication packages are not hosted on permanent repositories for long-term availability and adherence to open science principles. Conclusion: Solutions specific to notebooks for software engineering issues, including testing, refactoring, and documentation, are underexplored. Future research opportunities exist in automatic testing frameworks, refactoring clones between notebooks, and generating group documentation for coherent code cells.

en cs.SE, cs.CE
DOAJ Open Access 2024
Subjectivation and cities: relationships between local independent fashion and Possible Future Scenarios

Paula Visoná, Mágda Rodrigues da Cunha, César Kieling

This work is dedicated to studying the movement/collaborative network Somos MAG in south Brazil as an expression of the contemporary trend of collaborative networks in local independent fashion, but also as a space of immanence of noises that serve to think and possible future scenarios for different agents and areas, directly involved in local creative economies. Such factors are manifested in territories such as cities or regions, and they are increasingly integrated into a global economic and cultural dynamic, guiding creative proposals in values ​​of localism and proximity. Through an interdisciplinary methodological arrangement, the study will present the operation of principles that relate Comprehensive Sociology, Interpretive Anthropology, Dialogism, Strategic Design and Foresight, with a view to identifying elements that allow the constitution of Possible Future Scenarios.

Mechanical drawing. Engineering graphics
DOAJ Open Access 2024
A Meta-Analysis for an Interactive, Intersectional and Inclusive Exhibition Based on the SDGs

Sergio Degiacomi, Francesca Zoccarato, Simone De Pascalis et al.

The main goal of the project is to create an interactive exhibition, innovative and technological in its approach, that aims to create awareness and promote the knowledge of the Sustainable Development Goals of the Agenda ONU 2030 – in particular, on the value of social and environmental sustainability. 178 Countries adopted a common agenda to preserve our planet for the first time in 1992, during the Rio de Janeiro Summit. From that moment, the concept of sustainability has changed forever and has been changing ever since. In this paper, after understanding the state of the art in the field of the interactive exhibition, it is going to be explained how the methodology is applied in order to evolve from a desk and field analysis to a concept definition. These key points will then help define the concept in the shape of an operative strategy with methodological guidelines and a structured solution. From this stage, a few considerations on the future of this proposal can be drawn.

Mechanical drawing. Engineering graphics
arXiv Open Access 2024
WaSP: Warp Scheduling to Mimic Prefetching in Graphics Workloads

Diya Joseph, Juan Luis Aragón, Joan-Manuel Parcerisa et al.

Contemporary GPUs are designed to handle long-latency operations effectively; however, challenges such as core occupancy (number of warps in a core) and pipeline width can impede their latency management. This is particularly evident in Tile-Based Rendering (TBR) GPUs, where core occupancy remains low for extended durations. To address this challenge, we introduce WaSP, a lightweight warp scheduler tailored for GPUs in graphics applications. WaSP strategically mimics prefetching by initiating a select subset of warps, termed priority warps, early in execution to reduce memory latency for subsequent warps. This optimization taps into the inherent but underutilized memory parallelism within the GPU core. This underutilization is a consequence of a baseline scheduler that evenly spaces misses throughout execution to exploit the inherent spatial locality in graphics workloads. WaSP improves on this by reducing average memory latency while maintaining locality for the majority of warps. While maximizing memory parallelism utilization, WaSP prevents saturating the caches with misses to avoid filling up the MSHRs (Miss Status Holding Registers). This approach reduces cache stalls that halt further accesses to the cache. Overall, WaSP yields a significant 3.9% performance speedup. Importantly, WaSP accomplishes these enhancements with a negligible overhead, positioning it as a promising solution for enhancing the efficiency of GPUs in managing latency challenges.

en cs.AR, cs.GR
arXiv Open Access 2024
Automated flakiness detection in quantum software bug reports

Lei Zhang, Andriy Miranskyy

A flaky test yields inconsistent results upon repetition, posing a significant challenge to software developers. An extensive study of their presence and characteristics has been done in classical computer software but not quantum computer software. In this paper, we outline challenges and potential solutions for the automated detection of flaky tests in bug reports of quantum software. We aim to raise awareness of flakiness in quantum software and encourage the software engineering community to work collaboratively to solve this emerging challenge.

arXiv Open Access 2024
Unified Smooth Vector Graphics: Modeling Gradient Meshes and Curve-based Approaches Jointly as Poisson Problem

Xingze Tian, Tobias Günther

Research on smooth vector graphics is separated into two independent research threads: one on interpolation-based gradient meshes and the other on diffusion-based curve formulations. With this paper, we propose a mathematical formulation that unifies gradient meshes and curve-based approaches as solution to a Poisson problem. To combine these two well-known representations, we first generate a non-overlapping intermediate patch representation that specifies for each patch a target Laplacian and boundary conditions. Unifying the treatment of boundary conditions adds further artistic degrees of freedoms to the existing formulations, such as Neumann conditions on diffusion curves. To synthesize a raster image for a given output resolution, we then rasterize boundary conditions and Laplacians for the respective patches and compute the final image as solution to a Poisson problem. We evaluate the method on various test scenes containing gradient meshes and curve-based primitives. Since our mathematical formulation works with established smooth vector graphics primitives on the front-end, it is compatible with existing content creation pipelines and with established editing tools. Rather than continuing two separate research paths, we hope that a unification of the formulations will lead to new rasterization and vectorization tools in the future that utilize the strengths of both approaches.

en cs.GR
DOAJ Open Access 2023
بررسی طیف‌سنجی واکنش جفت‌شدن آزویی 4- آمینوکومارین با نمک‌های آریل دی‌آزونیم کلرید: تشکیل انحصاری محصولات هیدرازون

عنایت اله مرادی روفچاهی, عاطفه قلی زاده اشکلک, عالیه کمالی پور شیراز et al.

در این مطالعه، آمین‌های آروماتیک 4-آمینو استانیلید، 4- بوتیل آنیلین، 4- اتیل آنیلین، 4-استیل آنیلین و 4- نیترو آنیلین با استفاده از سدیم نیترید در حضور اسید هیدروکلریک در دمای 5-0 درجه سانتی‌گراد دی‌آزوته شده و با 4-آمینو کومارین به منظور تهیه پنج رنگزای آریل آزوی مربوطه جفت شدند. ساختار دقیق رنگزاهای سنتز شده به کمک روش‌های طیف‌سنجی زیر قرمز تبدیل فوریه (FT-IR)، رزونانس مغناطیسی هسته‌ای پروتون (1H NMR)، رزونـانس مغناطیـسی هستـه‌ای کربن (13C NMR) تعیین شدند. نتایج نشان دادند که از میان دو ساختار پیشنهادی آزو و هیدرازون، همه رنگزاهای حاصل منحصراً دارای ساختار هیدرازون می‌باشند و هیچ شاهدی مبنی بر وجود ساختار آزو مشاهده نمی‌شود. علاوه بر این، طیف جرمی (MS) رنگزاهای حاصل ثبت و ساختار پیشنهادی را تأیید کرد. همچنین رفتار حلال‌پوشی این رنگزاها در حلال‌های دی متیل سولفوکسید، دی متیل فرمامید، استونیتریل، کلروفرم، اتانل و استیک اسید مطالعه شد و تغییرات جذبی مشاهده شده با توجه به انتقالات الکترونی محتمل در ترکیبات مورد بحث و بررسی قرار گرفتند.

Environmental technology. Sanitary engineering, Mechanical drawing. Engineering graphics
DOAJ Open Access 2023
Developing prototypes of the assistant opener of packaging for consumer accessibility

Somporn Nilmanee

The purpose of this research was to focus on the design of packaging openers for consumer access to the contents. The packaging opener was created to make opening easier and safer. In this study, online questionnaires were used to investigate the problems and solutions of user experiences when opening packaging. According to the findings, a major issue among the responding participants is that they should have a strong hand force. However, the hand force not only had enough energy to open the packaging, but it was also unable to open the closure at the specified location. When participants encountered opening problems, they preferred to use an assistant tool rather than ask for assistance. The risk of packaging materials, scissors, knives, and wrist and finger twisting occurred during opening packaging. According to the respondents' experiences, the four functions of the packaging opener were integrated together for the corrugated box, ring-pull a can, lug cap closure, and flexible packaging. As a result, the newly designed packaging opener required less opening force, a safer hold, and optimized hand ergonomics. The attractive configuration and comfortable grip were also important factors to consider when designing the packaging openers in this study. Opener prototypes were modelled using SolidWorks and were formed by a 3D printer. The FSUDE system was employed to evaluate the functions, safety, usability, design, and engineering of all prototypes. Based on the results of this study, form, dimension, surface, friction, and grip posture were factors affecting torque force exertion, slitting and cutting force, and openability of consumers.

Mechanical drawing. Engineering graphics
DOAJ Open Access 2023
Constraining Star-Formation Driven Outflows in Local Dwarf Galaxies with <i>Herschel</i><xref rid="fn1-psf-2287691" ref-type="fn">†</xref>

Michael Romano

Galactic feedback (i.e., outflows) plays a fundamental role in regulating galaxy formation and evolution. We investigate the physical properties of galactic outflows in a sample of 29 local low-metallicity dwarf galaxies drawn from the Dwarf Galaxy Survey. We make use of Herschel/PACS archival data to detect outflows in the broad wings of observed [CII] 158 μm line profiles. We detect outflowing gas in 1/3 of the sample, and in the average galaxy population through line stacking. We find typical mass-loading factors (i.e., outflow efficiencies) of the order of unity. Outflow velocities are larger than the velocities required from gas to escape the gravitational potential of our targets, suggesting that a significant amount of gas and dust is brought out of their halos. Our results will be used as input for chemical models, posing new constraints on the processes of dust production/destruction in the interstellar medium of galaxies.

Mechanical drawing. Engineering graphics, Physical and theoretical chemistry
DOAJ Open Access 2023
Cosmological Properties of the Cosmic Web

Majd Shalak, Jean-Michel Alimi

In this paper, we study the dynamical and statistical properties of the cosmic web and investigate their ability to infer the corresponding cosmological model. Our definition of the cosmic web is based on the local dimensionality of the gravitational collapse that classifies the cosmic web into four categories: voids, walls, filaments, and nodes. Our results show that each category has its specific non-Gaussian evolution over time and that these non-Gaussianities depend on the cosmological parameters. Nonetheless, the non-Gaussianities in each category exist even at early epochs when the matter field has a Gaussian distribution. Additionally, by using deep learning techniques, we show that leveraging the cosmic web information engenders an improved inference of cosmological parameters, when compared to merely using the matter field.

Mechanical drawing. Engineering graphics, Physical and theoretical chemistry
DOAJ Open Access 2023
Cosmological Solutions of Integrable <i>F</i>(<i>R</i>) Gravity Models with an Additional Scalar Field

Sergey Vernov, Vsevolod Ivanov

We consider <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>F</mi><mo>(</mo><mi>R</mi><mo>)</mo></mrow></semantics></math></inline-formula> cosmological models with a scalar field. For the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi>R</mi><mn>2</mn></msup></semantics></math></inline-formula> model in the spatially flat Friedmann–Lemaître–Robertson–Walker metric, the Ricci scalar <i>R</i> can smoothly change its sign during the evolution if and only if the scalar field is a phantom one. In the Bianchi I metric, the Ricci scalar cannot smoothly change its sign if the corresponding solution is anisotropic at <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>R</mi><mo>=</mo><mn>0</mn></mrow></semantics></math></inline-formula>. This result does not depend on the type of the scalar field. In the Bianchi I metric, the general solution of evolution equations has been obtained.

Mechanical drawing. Engineering graphics, Physical and theoretical chemistry

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