bluuebunny/crossref_metadata_2025 huggingface dataset:
Effect of Heat Treatment T6 on Selected Properties and Structure of AlSi5Cu2Mg Alloy with Addition of Mo, Zr, and Sr
Authors: Sýkorová M. , Bolibruchová D. , Brůna M. , Hradečný K.
Published: December 2024

The hypoeutectic aluminum alloy AlSi5Cu2Mg is used for the production of high-strength automotive components such as cylinder head castings. AlSi5Cu2Mg alloy is characterized by a specific chemical composition (low permitted Si and Ti content) determined by the supplier. Due to the low permitted Ti content it is impossible to refine the grain structure of this aluminum alloy using standard grain refiners based on Al-Ti-B. Al-Si-Cu-Mg alloys are thermal stable up to the temperature 200°C, due to the presence of strengthening precipitates. Due to the downsizing, the operating temperature exceeds the temperature of 200°C, which leads to a decrease in the mechanical and physical properties of Al-Si-Cu-Mg alloys. The aim of this study is to analyse influence the alloying elements and heat treatment on the selected properties of AlSi5Cu2Mg alloys that are crucial for cylinder head castings. The paper focuces on the evaluation of the influence of selected alloying elements Sr, Zr and Mo on mechanical and physical properties. The present work also analysis the effect of heat treatment T6 on selected properties and structure of AlSi5Cu2Mg alloy modified by Sr, Zr or Mo. Sr, Zr and Mo were added into the AlSi5Cu2Mg alloy in the form of master alloys AlMo10, AlSr10 or AlZr20. According to the findings, the incorporation of the chosen alloying elements did not result in a substantial improvement in the mechanical and physical characteristics of AlSi5Cu2Mg alloy, which would be critical for its practical application. Physical and mechanical properties noted positive increase due to the effect of thermal processing T6.
Design of Conformal Cooling of an Additively Printed Aluminium Die-Casting Mold Component
Authors: Sviželová J. , Socha L. , Mohamed A. , Pinta M. , Koza K. , Sellner T. , Gryc K. , Dvořák M. , Roh M.
Published: December 2024

The paper describes the design of conformal cooling of an aluminium die-casting mold component using numerical simulations along with validation under industrial conditions. The subject of modifications was the insert. The insert comes into direct contact with the metal during the filling of the mold and solidification of the casting and determines the internal shape of the casting. The aim was to optimize the operating temperatures of the insert, reduce thermal stress in the most exposed area, achieve a more even distribution of temperatures in its volume, and maintain the casting quality. Shape modifications were made by topology optimization to reduce the volume of the insert and achieve material savings. 3D printing was chosen as the production technology due to the wider possibilities regarding the variability of the shape of the internal cooling channels. Three geometric designs of the insert were created, and numerical simulations of the temperature field of the mold were carried out in ProCAST software for each variant. Numerical simulations were validated through the temperature field of the mold detected by a thermal camera during the casting cycle. Based on the results, the final design D was selected, for which a complete numerical simulation was performed, including the filling and solidification of the castings. The results were compared with the original variant A. By adjusting the cooling, temperatures were reduced in the most temperature-exposed area of the insert. The new insert variant D showed higher temperatures in the rest of the volume, resulting from material volume reduction. However, the temperatures became even, and the temperature gradients that existed in the original insert variant A were reduced. The simulation also showed that changes in the temperature field of variant D will not negatively affect the quality of the castings. The component will be manufactured and tested in operational conditions in the next research phase.
Quality Assessment Method for Chromite Sand to Reduce the Number of Cast Steel Surface Defects
Authors: Wróbel T. , Jezierski J. , Bartocha D. , Feliks E. , Paleń A.
Published: December 2024

This paper discusses the ability to apply the test method using a scanning electron microscope (SEM) together with EDS (Energy Dispersive Spectroscopy) analysis to assess the quality of fresh chromite sand delivered by various suppliers to Huta Małapanew Sp. z o.o. The research was initiated due to the non-cyclical occurrence of surface casting defects, i.e. pitted skin and burn-on of chromite moulding sand for cast steel casting. The scope of studies comprised the quality assessment of sixteen chromite sand batches delivered for six months by two suppliers. The analysis of the results obtained was used to describe components of the tested chromite sand batches and develop criteria for their quality assessment, considering the chemical composition of chromite grains and the amount of impurities in the form of silica sand and the binder particles. Moreover, clear suggestions were developed concerning the ability to use the given chromite sand batch as the base of moulding sand made in Alphaset technology in Huta Małapanew Sp. z o.o.
The Comparison of Chosen - Bonded with the Use of Classical and Dedicated for 3D Printing Furfuryl Binder - Molding Sands’ Properties as a Basis for Development a New Inorganic System
Authors: Halejcio D.M. , Major-Gabryś K.A.
Published: December 2024

Binder jetting technology (3D printing) in the production of foundry molds and cores is becoming more and more industrially used due to ensuring very good quality of the casting surface. In 3D printing technology as the matrix, quartz sand is mainly used, with a grain size of 0.14-0.25 mm. The binder is an organic binder - most often furfuryl resins. As part of this work, self-hardening molding sands with furfuryl resins dedicated to the classic production of molds and cores, as well as molding sands with resin dedicated to 3D printing, were tested. The aim of the research was to compare the viscosity of binders and the properties of molding sands prepared based on binding systems both dedicated to the classic production of molds and cores and for 3D printing. Tests were carried out on the binding kinetics, bench life, strength properties, permeability, abrasion and hot distortion of molding sands prepared on the basis of a standard medium grain matrix and sieved fine-grain matrix. The carried-out tests have shown that the binding system based on furfuryl resin elaborated for 3D printing of molding sands provides strength properties of the sands similar to the classic system of binding self-hardening molding sands with furfuryl resins. However, it ensures faster binding speed and greater thermal stability measured by the hot distortion parameter. The use of a fine-grained matrix results in a decrease in the strength properties of all the molding sands. On the basis of the results achieved for molding sands with organic binding system, a new inorganic binding system was elaborated.
Influence of Selected Factors on Penetration and Drying Kinetics of Protective Coatings into Sand Mould Surface Layer
Authors: Jamrozowicz Ł.
Published: December 2024

This paper presents the results of measuring moisture migration in the surface layer of a sand mould during the soaking and drying processes of protective coatings. In the introduction, the process of moisture exchange between the surroundings and the moulding sand is briefly introduced, and the flow of moisture in porous materials is presented. Since the aim of the research is to understand the mechanism of the penetration and drying processes of a protective coating that is applied to a core or mould, the purpose of protective coatings and the consequences of poor drying are presented. During the research, a novel test rig was used to measure the resistance of a porous medium due to moisture migration. An alcohol-based zirconia coating with a conventional viscosity of 20 s was used for the tests. The viscosity of the coating was determined by using a Ford cup with a mesh clearance of 4 mm. The cores for the tests were made from a phenol-formaldehyde resin moulding compound. The average grain size of the sand matrix was dL = 0.25 mm. During the core preparation, pairs of electrodes were placed in the mass at depths of 1, 2, 3, 4, 5, 8, 12, 16, and 20 mm. The resistance was measured continuously. During the tests, the moisture-migration process in the top layer of the core was determined after the protective coating was applied to it. The tests were conducted in a climatic chamber with air temperatures of T = 25° and 35°C and humidity levels of H = 39 and 80%.
Decarbonisation determinants of the steel industry
Authors: Mokrzycki Eugeniusz , Gawlik Lidia
Published: December 2024

The iron and steel industry is a sector with very high energy consumption and also causing high emissions. It is difficult to imagine the development of modern sectors of the economy such as construction, transport or the machinery industry without the use of steel, so forecasts indicate that the demand for steel will increase in the future. Meanwhile, environmental concerns and concerns about climate change are growing, so the iron and steel industry faces a serious challenge related to reducing its emissions in order to achieve the goal set in the Paris Agreement, and this is even more true for this industry in the European Union. Currently, the most popular technology for steel production is the blast furnace process – basic oxygen furnace (BF-BOF). This technology requires the use of coal, which is a source of emissions, so a radical technological change is needed. Decarbonising the steel industry requires changing from coal-based metallurgy to hydrogen-based and electricity-based metallurgy. Changing from primary to secondary steel production (using scrap steel) improves the situation but is not a solution to meet growing demand. There are two main technology paths that can achieve significant CO2 reduction. The first is Smart Carbon Usage (SCU), which is based on the gradual reduction of coal consumption, including the use of by-product gases for further conversion into valuable products. The second emerging technology path is Carbon Direct Avoidance (CDA). These and other developing methods of low-emission or zero-emission metallurgy are discussed in the article. Unfortunately, some of these methods are not mature and their final commercialisation requires overcoming a number of problems.
Organisational culture based on ESG standards and knowledge management – premises for implementation for the mining industry
Authors: Podobińska-Staniec Marta Urszula , Sukiennik Marta , Kęsek Marek , Oleksak Karolina
Published: December 2024

This article aims to examine the level of ESG culture in Polish enterprises and indicate premises for implementation in the mining industry. The publication conducts a multi-criteria analysis of literature regarding companies’ approaches to ESG standards. The study focuses on shaping organisational culture by utilising knowledge management tools. The actual level of ESG culture among respondents was obtained through a survey. Survey results for individual groups are presented in comprehensive and averaged radar charts. The sample included employees from small, medium, and large companies, considering their tenure and the industry in which the enterprise operates. The pilot study enabled drawing many constructive conclusions. However, noticeable significant gaps in ESG-compliant organisational culture were observed. Companies primarily focus on their core activities, neglecting socially significant values and building additional employee bonds. Through the analysis of survey data, guidelines for implementing ESG reporting in specific areas were developed. Potential solutions to problematic issues for enterprises were also identified. The research has significant potential, and expanding the scope could directly impact the quality of reporting and the development of enterprises including entities in the mining industry.
Misja „Survey Data Harmonization in the Social Sciences” a potrzeba nowego paradygmatu w badaniach porównawczych
Authors: Sawiński Zbigniew
Published: December 2024

Artykuł rozpoczyna się od analizy historycznych przyczyn obecnego kryzysu w międzynarodowych badaniach porównawczych korzystających z harmonizacji ex-ante – podejścia, którego istota polega na powtarzaniu tych samych pytań w różnych krajach. Podejście stworzono w latach zimnej wojny w celu oceny efektów amerykańskiej propagandy, skąd na wiele lat trafiło do nauk społecznych, przyczyniając się do rozwoju międzynarodowych programów badawczych, jak WVS, ISSP, ESS czy PISA. Dopiero trudności w prowadzeniu badań w czasie pandemii wywołały utratę zaufania do harmonizacji ex-ante. Książka Survey Data Harmonization in the Social Sciences ukazała się w szczytowym momencie kryzysu. Choć autorzy nie kwestionują dokonań harmonizacji ex-ante, zdecydowanie zachęcają badaczy do szukania nowych podejść. W artykule zaproponowano, aby duże międzynarodowe programy badawcze obejmujące dziesiątki krajów uzupełnić mniejszymi projektami, które pozwalają poświęcić więcej uwagi specyfice zjawisk w badanych krajach. Historia pokazuje, że możliwość osiągnięcia lokalnych korzyści zawsze stanowiła jeden z głównych powodów zaangażowania krajów w międzynarodowe badania.
Rozumienie pojęcia rasy w społeczeństwie polskim w latach 1988–2018/2022
Authors: Nowicka Ewa , Łodziński Sławomir
Published: December 2024

Artykuł dotyczy rozumienia pojęcia rasy w społeczeństwie polskim i jego historycznej zmienności. Omawiamy w nim wyniki badań sondażowych przeprowadzonych w latach 1988, 1998 i 2018 oraz jakościowych zrealizowanych w 2022 roku. W obu typach badań interesowały nas kategorie służące świadomie lub nieświadomie do jego definiowania, a także sposoby wartościowania różnorodności fenotypicznej ludzkości, czyli głównego składnika myślenia rasistowskiego. W artykule zwracamy uwagę, że badani postrzegali zróżnicowania świata ludzkiego nie tyle w kategoriach różnic rasowych związanych z różnorodnością fenotypiczną, ile głównie w terminach kulturowych różnic cywilizacyjnych i etnicznych. W związku z tym wprowadzamy termin „rasizm cywilizacyjny”, którego źródeł w Polsce możemy się doszukiwać w dostrzeganiu peryferyjności pozycji naszego kraju w świecie oraz w świadomości historycznego braku kontaktów z grupami rasowo odmiennymi.
Sport zapośredniczony. Konsumpcja kultury fizycznej w polskich domach
Authors: Omorczyk Adam
Published: December 2024

Recenzja książki: michał lenartowicz. 2023. Sport nasz powszedni. Praktyki konsumpcji sportowej Polaków. Wydawnictwo Naukowe Scholar, 240 s.
Python software for patient exposure analysis in radiology
Authors: Skrzyński Witold , Pasicz Katarzyna , Fabiszewska Ewa
Published: December 2024

Introduction: The values describing the patient’s exposure in X-ray diagnostics and interventional radiology should be compared with several independent criteria: diagnostic reference levels, dose levels associated with potential unintended exposure, and dose levels requiring specific action in interventional radiology. Radiation dose monitoring software (RDMS) is not always available, and may not perform all the tasks or cover all radiological devices. The aim of the work was to create software that would allow the analysis of dose data from various sources.

Material and Methods: Python programming language was chosen due to the availability of libraries enabling access to information stored in DICOM files (pydicom, rdsr-navigator) and data analysis functions (pandas). The software was created, able to import data from various sources (Excel files, DICOM files, RDSR dosimetry reports), reject data based on the indicated criterion, multiply selected numerical data by the indicated factor, compare dose information with preset criteria (including diagnostic reference levels), and create summary reports. Data describing how to analyse data from a specific source has been placed in easy-to-modify external configuration files (Excel spreadsheets). The results of the dose analysis are saved in Excel spreadsheets.

Results: The software was tested on DICOM files from mammography and radiography devices (obtained from PACS), RDSR dosimetry reports from interventional radiology units (obtained from PACS or exported directly from the radiology device), Excel files with data exported from a commercially available RDMS system. It has been confirmed that it is possible to change the data analysis method (e.g. add a new radiological device) by modifying the configuration file without changing the program code.

Conclusion: The software allows users to analyse patient exposure data from various sources, compare it with different dose levels, and prepare reports useful in internal clinical audits.
Managerial Performance in Village Government: Does Transformational Leadership Matters?
Authors: Rahmawati Evi , Kholid Arif Wahyu Nur , Adiyatama Evan Ardis , Sofyani Hafiez
Published: December 2024

This study examines the transformational leadership moderating role on the relationship between public accountability and budget participation on managerial performance in Indonesian village governments. The population of this study is the village apparatuses of the village government in Bantul Regency. The samples were selected using convenience sampling technique and data were collected through questionnaires. Hypotheses testing was conducted by utilizing Structural Equation Modelling-Partial Leas Square (SEM-PLS) method. The results unveiled that transformational leadership has a quasi-moderation role. Transformational leadership can reinforce the effect of budget participation on managerial performance while public accountability cannot affect managerial performance. It reveals that public accountability cannot promote and motivate the village apparatus to enhance their performance.
Stakeholder Pressure and Environmental Disclosure in Southeast Asia’s Mining Companies
Authors: Wicaksono Aditya Pandu
Published: December 2024

This study examines the potential effect of stakeholder pressure on the environmental disclosure practices of mining companies in Southeast Asia. Stakeholder pressure is represented by environmental regulation stringency, media exposure, and the country’s natural index level. Using the data from 142 mining companies in Southeast Asia for the period of 2017 to 2021, this study finds that stakeholder pressure is a main driver of environmental disclosure in Southeast Asia’s mining companies. This research shows that environmental stringency has a positive association with environmental disclosure. In addition, this study reveals that the higher media exposure of a firm will result in higher environmental disclosure in mining companies. The regression result shows that mining tends to disclose more environmental information when a country has a lower level of the natural index. This study has a significant contribution to the literature and suggests that managers need to fulfill stakeholder demands to maintain the social license.
Academic Fraud Enigma among Accounting Vocational School Students: Insights from Heptagon Framework and Relevance of Artificial Intelligence
Authors: Lestari Sari , Mutmainah Siti
Published: December 2024

This study aims to investigate the influence of heptagon theory elements, including pressure, opportunity, rationalization, competency, arrogance, greed, and ignorance, on academic fraud. Additionally, the study seeks to assess the moderating effect of Chat GPT usage, an artificial intelligence application, on the relationship between each element of heptagon theory and academic fraud. Employing a quantitative approach, the study focuses on the population of accounting students in vocational high schools, with a sample of 120 respondents meeting representativeness criteria calculated using the Cochran formula. Primary data is collected through respondents' responses obtained via a Google Form questionnaire. The results indicate that rationalization, competency, and greed exert has a significant influence on academic fraud among accounting students, whereas pressure, opportunity, arrogance, and ignorance do not exhibit a significant impact. Chat GPT, representing artificial intelligence, does not moderate the relationship between heptagon theory elements and academic fraud.
Green Initiatives and Firm Value: The Moderating Effect of Environmental Performance
Authors: Laela Sugiyarti Fatma , Hendrasto Nur , Surur Miftakhus
Published: December 2024

This study examined the impact of green initiatives on firm value and the moderating effect of environmental performance on the relationship between the variables. The proxies of green initiatives are green innovation, eco-efficiency, green accounting, and carbon emissions disclosure, while the indicators of firm value are market capitalisation, price-to-book value, price-earnings ratio, and dividend payout ratio. Environmental performance is measured by the Environmental Performance Rating Program issued by the Indonesian Ministry of Environment and Forestry. The data were gathered from listed companies on the Jakarta Islamic Index 70 (JII-70) and the IDX-80 index over the period 2019 to 2022. The final samples consist of 66 companies (or 172 firm-year observations). Using the Partial Least Squares Structural Equation Modeling (PLS-SEM), this study found green initiatives has a positive impact on firm value when tested using the total sample as well as a separate sample of each index. However, no empirical evidence was found that environmental performance enhances the positive impact of green initiatives on firm value. The regulators should incorporate environmental performance alongside financial fundamentals into the selection process of the Jakarta Islamic index.
Exploring Factors Influencing Digital Transparency in Local Governments: Practices in Indonesia
Authors: Octavio Muhammad Fadhly Rizky , Urumsah Dekar
Published: December 2024

This study aims to analyze the factors that influence digital transparency in Indonesian local governments. The tested determinants are  e-government maturity, financial report quality, and local government accountability systems. Data were collected from official websites, accountability reports, and financial reports of 541 Indonesian provincial and district/ city government. Using multiple  regression analysis, this study found that e-government maturity, financial report quality, and local government accountability systems significantly positively affect digital transparency. The findings indicate that good governance practices can encourage transparency in presenting financial and non-financial information. However, this study also found that some local government websites are not fully accessible, which may hinder access to necessary data. The implications of this study emphasize the importance of developing mature e-government, improving the quality of financial reports, and strengthening accountability systems in local governments to strengthen transparency, reduce corruption, and increase government legitimacy.
CHARACTERISTICS AND MATERNAL-PERINATAL OUTCOMES IN WOMEN WITH SEVERE PREECLAMPSIA AT SUMBER WARAS HOSPITAL
Authors: Odilia Nina Edhita , Hidayat Fadil , Liedapraja Mediana Sutopo
Published: December 2024

Preeclampsia is a cause of high maternal and fetal morbidity and mortality in developing countries. According to the Indonesian Health Profile, in 2021, hypertension in pregnancy is the second most common cause of maternal death in Jakarta with 22 cases out of 152 deaths. This study aims to determine the characteristics and maternal and perinatal outcomes of severe preeclampsia patients at Sumber Waras Hospital. This study was conducted in a descriptive qualitative observational manner with a cross-sectional approach using secondary data from medical records of patients with severe preeclampsia. The number of samples in this study was 85 pregnant women using a total sampling method on all pregnant women with severe preeclampsia who gave birth at Sumber Waras Hospital in the period January 2022 - December 2023. In this study, it was found that the majority of mothers with severe preeclampsia were aged 18-35 years. (63.5%), BMI in the second-degree obesity category (43.5%), multiparous parity status (64.7%), and term gestational age (76.5%). Maternal outcomes that occurred included eclampsia (14.1%), HELLP syndrome (2.4%), visual impairment (10.6%), and pulmonary edema (1.2%). The majority of perinatal outcomes had live babies (98.8%), no asphyxia (88.2%), and babies with normal weight (78.8%). Severe preeclampsia at Sumber Waras Hospital occurs more often in pregnant women aged 18-35 years, with a second-degree obesity BMI, multiparous, and term. Meanwhile, the outcomes that occurred were eclampsia, HELLP syndrome, visual disturbances, pulmonary edema, live babies, babies without asphyxia, and normal-weight babies.
Keywords: Severe Preeclampsia., Characteristics., Outcomes
GAMBARAN TEKANAN INTRAOKULAR PADA PASIEN MIOPIA DI RUMAH SAKIT UMUM PUSAT PROF. DR. I.G.N.G NGOERAH PERIODE JANUARI 2021 – AGUSTUS 2022
Authors: Aristadewi Putu Aprilyanti , Suryaningrum I Gusti Ayu Ratna , Sutyawan I Wayan Eka , Handayani Ariesanti Tri
Published: December 2024

Miopia adalah gangguan mata yang prevalensinya meningkat dalam beberapa dekade terakhir dan dapat menimbulkan komplikasi berupa gangguan pengelihatan lainnya hingga kehilangan pengelihatan apabila tidak ditangani. Miopia telah ditemukan memiliki pengaruh pada tekanan intraokular (TIO) sehingga meningkatkan risiko hipertensi okuli dan glaukoma. Penelitian ini bertujuan untuk memberikan gambaran TIO pada pasien miopia di Rumah Sakit Umum Pusat Prof. Dr. I.G.N.G Ngoerah Periode Januari 2021 – Agustus 2022. Penelitian ini merupakan studi potong lintang deskriptif retrospektif menggunakan data rekam medis pasien dengan miopia derajat ringan, sedang, dan tinggi. Teknik pengumpulan sampel penelitian ini adalah total sampling dengan subjek yang memenuhi seluruh kriteria inklusi sebanyak 35 orang (65 mata). Distribusi pasien miopia berdasarkan derajatnya adalah miopia ringan sebanyak 23 mata (35,38%), miopia sedang sebanyak 17 mata (26,15%), dan miopia tinggi sebanyak 25 mata (38,47%). Rata-rata TIO kelompok miopia ringan adalah 15,83 (SD 1,825) mmHg, kelompok miopia sedang adalah 16,47 (SD 1,419) mmHg, dan kelompok miopia tinggi adalah 17,44 (SD 2,434) mmHg. Analisis statistik Kruskal–Wallis perbedaan TIO ketiga kelompok miopia adalah 0,042 di mana p < 0,05. Uji Post-Hoc Bonferroni pada TIO kelompok miopia tinggi memiliki perbedaan yang signifikan dengan TIO kelompok miopia ringan dengan signifikansi 0,021. Terdapat hubungan yang signifikan secara statistik (p<0,05) antara TIO dan derajat miopia, pada kelompok miopia ringan dan tinggi. Hubungan yang lebih kuat antara TIO dengan derajat miopia dapat dibuktikan melalui studi longitudinal.
Kata kunci :  Miopia, Tekanan Intraokular, Hipertensi Okular.
The Role of Accountability in Social Organizations: a Systematic Literature Review
Authors: Pinto Sérgio Roberto , Silva Gercione Dionizio da , Sepulcri Lara Mendes Christ Bonella
Published: December 2024

Objective: identify and analyze how accountability has been implemented in Social Organizations and how it has been approached in international literature.
 
Theoretical Framework: This research conceptualizes accountability as a multidimensional construct integrating governance, transparency, and management practices, supported by the Accountability Adoption Framework and theories linking organizational sustainability with stakeholder trust.
 
Method: we chose to develop a systematic literature review of international publications from the Scopus and Web of Science databases. Then, adopting the PRISMA protocol, we obtained 58 articles, which were evaluated using Mendeley, VOSviewer, and NVIVO software, enabling qualitative and quantitative analyses.
 
Results and Discussion: The study reveals how Accountability is essential in its adoption process in Social Organizations; Most of the papers originated from the UK, as the case study the most adopted among the methods; The evolutionary process of accountability in Social Organizations can influence the management process; and that Organizational planning conditions the continuity of Social Organizations.
 
Research Implications: This study highlights accountability as key to enhancing governance, transparency, and stakeholder trust in social organizations. The proposed Accountability Adoption Framework offers practical guidance for implementation.
 
Originality: This research contributes uniquely by framing accountability as a multidimensional construct and proposing Accountability, which provides practical stages for implementation.
The Impact of Early Image Viewing on the Cognitive Productivity and Creativity of the Conceptual Design Stage
Authors: Chahinez Djari , Abdelmalek Arrouf
Published: December 2024

Objective: This study explores how viewing precedent images at the early stages of design impacts architects' cognitive productivity and creativity.
 
Theoretical Framework: The research draws on cognitive theories of design, focusing on how external stimuli, such as precedent images, shape cognitive actions during the ideation process. 
 
Method: A controlled design experiment was conducted with six experienced architects designing a bus shelter. Participants were randomly assigned to an investigational group, given images of existing bus shelters, or a control group, with no visual aids. The design process was analyzed using protocol analysis, and data were coded according to a cognitive-oriented framework.
 
Results and Discussion: Results show that early exposure to precedent images positively influences ideation. Architects in the experimental group exhibited significantly higher levels of:
- Cognitive Productivity: Generating a greater variety and number of new cognitive actions.
- Cognitive Creativity: Producing original, unconventional cognitive action chains that deviate from standard practices.
- Cognitive Consistency: Demonstrating more structured and homogeneous cognitive action chains, leading to a more organized and more operative design process.
These findings underscore the value of precedent images in fostering idea generation, enhancing connections between thoughts, and supporting the development of innovative concepts. As a visual reference, precedent images aid in structuring cognitive processes and encourage the integration of existing ideas into novel solutions.
 
Research Implications: These results have practical implications for architectural practice and education, highlighting the importance of visual tools in the early stages of design to boost productivity, creativity, and the formulation of groundbreaking solutions.
 
Originality/Value: The research provides new insights into the cognitive impacts of visual stimuli on the architectural design process.
Light and lighting — Energy performance of lighting in buildings — Calculation of the impact of daylight utilization
Authors:   CIE JTC06
Published: December 2024

This International Standard was prepared by Technical Committee ISO/TC 274, Light and lighting, in collaboration with the International Commission on Illumination (CIE). This first edition of ISO/CIE 10916 cancels and replaces ISO 10916:2014, which has been technically revised. This International Standard is part of a set of standards which allows users to rate the overall energetic performance of buildings. Facades and rooflights have a key impact on the building’s energy balance. This document supports daylighting and lighting-energy-related analysis and optimization of facade and rooflight systems. This International Standard defines the calculation methodology for determining the monthly and annual amount of usable daylight penetrating non-residential buildings through vertical facades and rooflights and the impact thereof on the energy demand for electric lighting. It is applicable for existing buildings and the design of new and renovated buildings. It also provides the overall lighting energy balance equation relating the installed power density of the electric lighting system with daylight supply and lighting controls (proof calculation method).For estimating the daylight supply and rating daylight -dependent electric lighting control systems, a simple table-based calculation approach is provided. The simple method describes the division of a building into zones as required for daylight illumination-engineering purposes, as well as considerations on the way in which daylight supplied by vertical facade systems and rooflights is utilized and how daylight-dependent lighting control systems affect energy demand. Dynamic vertical facades with optional shading and light redirection properties are considered, i.e. allowing a separate optimization of facade solutions under direct insolation and under diffuse skies. For rooflighting systems, standard, static solutions like shed rooflights and continuous rooflights are considered. The method is applicable for different latitudes and climates. For standard building zones (utilizations), operation times are provided.For detailed analysis, an approach to calculate the effect of daylight on the lighting energy demand on an hourly or sub-hourly basis is provided in this International Standard. Relevant quantities are modelled explicitly and are then interacting directly with sensors, actuators and functional elements of the building automation and control system (BACS) or are triggering user interaction. To support overall building performance assessment, additional daylight performance indicators on the overall building level are provided in this International Standard.
Editorial
Authors: Castaño Pareja Yoer Javier
Published: December 2024

El 25 de septiembre de 1513, y gracias a la información brindada por los indios del Darién, el extremeño Vasco Nuñez de Balboa contempló por primera vez ese otro océano que existía allende aquel istmo, y al cual denominó la Mar del Sur. A partir de entonces, se pusieron en marcha toda una serie de dinámicas económicas, sociales y culturales que conllevaron al descubrimiento de las fabulosas riquezas del Perú, y posteriormente, al acceso por parte de ibéricos y americanos a los colosales tesoros del Asia. Así se cristalizó el sueño colombino de tener acceso a las Indias Orientales siguiendo una ruta a través de occidente y a la par se hacía plausible para la monarquía hispánica poner fin a la hegemonía de la presencia portuguesa en aquel espacio sin violar el Tratado de Tordesillas. De modo que con aquella gesta se dio inicio a la unión de la gran cuenca oceánica que ocupa la mitad del planeta Tierra y que incluye los litorales y costas americanas y asiáticas, y al conjunto de islas que conforman Oceanía o Australasia.
Luis Valdivia Rojas: El gestor y padre de la revista Historia Y Espacio. Breve homenaje en la celebración de los 45 años de tal publicación
Authors: Castaño Pareja Yoer Javier
Published: December 2024

Luis Valdivia Rojas nació en la zona del desierto costero de Chile, en el puerto de Arica, en el seno de una familia obrera ferroviaria en 1945. Realizó sus estudios universitarios en Santiago, se graduó como geógrafo en la Universidad de Chile en 1973. Tuvo un breve desempeño profesional en el Instituto de Recursos Naturales (IREN). Llegó a Colombia en 1975 atravesando la frontera sur cuando Alfonso López Michelsen estaba al mando de la nación, y llegó a Bogotá a la casa de la profesora Isabel Sánchez Méndez, quien había sido jefe del departamento de Historia de la Universidad Nacional, conocía al profesor Germán Colmenares y era la hermana mayor del actor de televisión Pepe Sánchez.
Analisis Efek Aliasing Pada Sinyal Audio Dengan Variasi Frekuensi Sampling Pada Lagu ‘Terhebat’
Authors: Shabrina Hasyyati , Setyowati Endah , Ahmayani Inda , Putri Khalifah Audya Eka
Published: December 2024

Aliasing merupakan fenomena yang terjadi dalam pengolahan sinyal digital, termasuk sinyal audio, ketika frekuensi sampling yang digunakan tidak mencukupi untuk merepresentasikan frekuensi tertinggi dalam sinyal tersebut. Penelitian ini bertujuan untuk menganalisis efek aliasing pada sinyal audio dengan melakukan variasi frekuensi sampling pada lagu "Terhebat". Eksperimen dilakukan dengan menggunakan software MATLAB untuk memvisualisasikan dan menganalisis sinyal audio pada frekuensi sampling 11025 Hz, 22050 Hz, 44100 Hz, 88200 Hz, dan 32000 Hz. Hasil penelitian menunjukkan bahwa frekuensi sampling yang terlalu rendah, seperti 11025 Hz dan 22050 Hz, menyebabkan aliasing yang signifikan, ditandai dengan distorsi dan hilangnya detail frekuensi tinggi pada sinyal audio. Sebaliknya, frekuensi sampling yang terlalu tinggi, seperti 88200 Hz, tidak memberikan manfaat yang signifikan dalam meningkatkan kualitas audio. Frekuensi sampling 44100 Hz, yang umum digunakan dalam CD audio, menghasilkan kualitas audio yang baik dengan efek aliasing yang minimal. Penelitian ini menyimpulkan bahwa pemilihan frekuensi sampling yang tepat sangat penting untuk menghindari efek aliasing dan mempertahankan kualitas sinyal audio yang baik.
ANALISIS PENGUJIAN RELAY DISTANCE BERDASARKAN REKOMISIONING RELAY DISTANCE MENGGUNAKAN ISA DRTS 64
Authors: Kusuma Feldinando Altalarik , Sunaryantiningsih Ina , Yuniahastuti Irna Tri
Published: December 2024

Latar belakang penelitian ini didasarkan pada pentingnya sistem proteksi yang efektif untuk melindungi jaringan listrik dari terjadinya gangguan. Penelitian ini bertujuan untuk menganalisis kinerja sistem proteksi pada distribusi tenaga listrik dengan fokus pada penyesuaian setting relai distance dan pengujian menggunakan standar ISA DRTS 64. Metode penelitian yang digunakan adalah kuantitatif dan fokus pada pengukuran dan analisis data numerik untuk memperoleh informasi yang akurat. Hasil fasa-fasa menunjukkan bahwa relay distance beroperasi dengan akurasi tinggi, dengan kesalahan impedansi maksimum 0,61% pada zona 3 fasa T dan kesalahan impedansi minimum 0,33% pada zona 1 fasa R. Hasil fasa-ground Zona 1 pengujian dilakukan dengan kombinasi tiga fasa netral R,S,T menggunakan impedansi terukur konstan sebesar 1,846 Ω kesalahan pengukuran sebesar 0,33% menunjukkan akurasi yang sangat baik, waktu pengoperasian antara 15,3 ms dan 54,9 ms. Hasil pengukuran metering 1 menunjukkan pembacaan semua fasa sangat mendekati 200,5 A, dengan error 0,2% hingga 0,3%. Menunjukkan akurasi yang sangat baik dalam pengukuran saat ini. Untuk pengujian tegangan , nilai injeksi tiap fasa sebesar 63,509 V  dengan sudut yang sama dengan pengujian arus. Hasil pengukuran menunjukkan pembacaan sekitar 38 kV pada semua fasa, dengan error konstan sebesar -0,1%. Hasil pengukuran metering 2 menunjukkan pembacaan berkisar antara 400,8 A hingga 401,5 A di semua fasa. Kesalahan pengukuran arus bervariasi antara 0,2% dan 0,4%, dengan kesalahan terbesar terjadi pada fase R. Hasil pengujian relay distance pengukuran dan relay distance uji synchrocek terdapat perbedaan sudut antara sisi R, S, T di Main VT (Voltage Transformer) dan VT Synchro Line, dengan nilai 240°, 240°, 240° dan 240°, 230°, 218°, Kondisi ini menghasilkan status "Synchro".
RANCANG BANGUN AKUARIUM BERBASIS INTERNET OF THINGS UNTUK IKAN ARWANA SILVER
Authors: Utami Nia Saputri , Kasnalestari Tria , Sinaga Martin , Ariyanto Dede , Salim Sigit Setiawan
Published: December 2024

Ikan arwana merupakan ikan hias air tawar yang memiliki bentuk tubuh yang unik, serta memiliki warna yang indah sehingga banyak yang menjadikan ikan arwana sebagai ikan hias yang memiliki harga jual yang tinggi. Dikarenakan harga jual yang tinggi, ikan arwana membutuhkan perawatan khusus seperti pemeliharaan pada kualitas airnya. Kualitas air pada ikan arwana ditentukan oleh parameter-parameter seperti suhu, pH, dan tingkat TDS. Dalam rangka mempermudah pengendalian parameter-parameter air tersebut, maka diperlukan sistem yang dapat melakukan fungsi monitoring dan controlling dengan memanfaatkan teknologi IoT (Internet of Things). Penelitian ini membuat akuarium yang dapat mengendalikan parameter-parameter air dan memantaunya melalui aplikasi dengan memanfaatkan jaringan internet. Adapun sensor yang digunakan yaitu sensor DS18B20 untuk mendeteksi suhu air, sensor pH-4502C untuk mendeteksi kadar pH air, dan sensor TDS untuk mendeteksi tingkat kekeruhan air. Implementasi sensor-sensor tersebut pada akuarium menunjukkan fungsi yang optimal dan sesuai. Hal ini ditunjukkan dengan hasil pengujian eror dan akurasi pada sensor DS18B20 yaitu sebesar 09, dan 99,1%. Lalu, hasil pengujian pada sensor pH-4502C menunjukkan eror dan akurasi sebesar 4,52 dan 95,48%. Sedangkan hasil pengujian eror dan akurasi pada sensor TDS diperoleh 1,81 dan 98,19%. Sementara itu, aplikasi yang digunakan untuk monitoring dan manual controlling akuarium juga dapat berfungsi dengan optimal. Hal ini dibuktikan dengan fitur-fitur dapat diakses, dapat menerima dan menampilkan data parameter-parameter air akuarium. Selain itu, delay pengiriman data dari sensor ke aplikasi hanya sebesar 285,7ms dengan provider 1 dan 360,9ms dengan provider 2.
Perancangan Sistem Monitoring Panel Surya Dengan Berbasis IoT Menggunakan Blynk
Authors: Akbar Dian Faisal , Yuniahastuti Irna Tri , Sari Churnia
Published: December 2024

Salah satu teknologi yang sangat potensial untuk menghasilkan energi matahari adalah teknologi panel surya, terutama di negara-negara tropis seperti Indonesia. Saat ini, teknologi pemanen energi berbasis panel surya/photovoltaic (PV) sangat maju dan banyak digunakan untuk berbagai kebutuhan. Tujuan Dari penelitian ini untuk mengetahui luaran dari panel surya. Pengujian ini di lakukan selama 7 hari dengan 7 kali pengukuran yaitu pada jam 09.00 hingga jam 15.00. Alat pengujian menggunakan sensorINA219 dan watt meter. Hasil pengujian mendapatkan hasil rata rata daya harian yaitu 11,14 watt pada pengukuran menggunakan Watt meter. Sedangkan hasil rata rata daya yang di peroleh sensor INA219 adalah 7,77 watt. Untuk melakukan pengujian arus dan tegangan pada panel surya, penelitian ini menggunakan panel surya 50 wp jenis pollikristalin, mikrokontroler NodeMCU ESP8266 dan sensor INA219. Data kemudian dikirim ke aplikasi Blynk melalui internet.
МОНИТОРИНГ РАЗМЕРОВ, ВЕСА И ЖИВОЙ МАССЫ МАЛЬКОВ В БАССЕЙНЕ
Authors: ШЕВЧУК В П. , ТИТОВ Р Н.
Published: December 2024

Предлагается структурная модель автоматизированного рабочего места (АРМ) рыбовода. В основу алгоритма функционирования АРМ положена система видео мониторинга ремонтно-маточного стада осетровых пород рыбы. АРМ состоит из базы знаний, базы экспериментальных данных, программного модуля управления базой экспериментальных данных, модуля интеллектуального анализа экспериментальных данных, модуля прогнозирования принятия решений и модуля документооборота. Предложен алгоритм мониторинга длины, веса и живой массы малька в бассейне при помощи обработки стоп-кадров с видео камеры. Алгоритм основан на измерении координат опорных точек и величин смещения опорных точек от центров пикселов. Предложен алгоритм для оценки методической динамической составляющей относительной погрешности измерения размера малька от квантования по времени. Параметрами алгоритма являются калибровочный коэффициент видеокамеры, время между двумя соседними промерами и скорость роста малька. Предложен алгоритм прогноза роста малька среднего размера на момент времени следующего промера, что позволяет прогнозировать количество корма и оптимальное время следующей кормёжки.

A structural model of an automated workplace (AWP) of a fish breeder is proposed. The algorithm for the functioning of the automated control system is based on a video monitoring system for the repair and breeding stock of sturgeon fish. The automated control system consists of a knowledge base, an experimental data base, a software module for managing an experimental data base, a module for intelligent analysis of experimental data, a module for predicting decision-making and a document management module. An algorithm for monitoring the length, weight and live weight of the fry in the pool by processing freeze frames from a video camera is proposed. The algorithm is based on measuring the coordinates of the reference points and the values of the offset of the reference points from the pixel centers. An algorithm is proposed to evaluate the methodological dynamic component of the relative error in measuring the fry size from time quantization. The algorithm parameters are the calibration coefficient of the video camera, the time between two adjacent examples, and the growth rate of the fry. An algorithm for predicting the growth of a medium-sized fry at the time of the following example is proposed, which makes it possible to predict the amount of feed and the optimal time for the next feeding.
ОПРЕДЕЛЕНИЕ ПАРАМЕТРОВ ДЕБАЛАНСА РЕЗОНАТОРА ВОЛНОВОГО ТВЕРДОТЕЛЬНОГО ГИРОСКОПА ПУТЕМ ПРИЛОЖЕНИЯ ВНЕШНЕЙ ВИБРАЦИИ
Authors: ЛУНИН Б С. , БАСАРАБ М А.
Published: December 2024

В статье рассмотрена возможность определения параметров массового дисбаланса резонатора волнового твердотельного гироскопа (ВТГ) путем приложения к нему внешней механической вибрации и определения параметров возникающей волновой картины. Приведены экспериментальные данные по определению параметров массового дисбаланса металлического резонатора ВТГ, демонстрирующие преимущества этого метода, к которым следует отнести высокую чувствительность и возможность направленного приложения вибрации (угловой или линейной) по одной из осей, что значительно упрощает процедуру обработки данных. Обсуждены проблемы технической реализации данного метода.

The article considers the possibility of determining the parameters of mass imbalance of a resonator of a solid-state wave gyroscope (SWG) by applying external mechanical vibration to it and determining the parameters of the resulting wave pattern. Experimental data on determining the parameters of mass imbalance of a metal SWG resonator are presented, demonstrating the advantages of this method, which include high sensitivity and the possibility of directional application of vibration (angular or linear) along one of the axes, which significantly simplifies the data processing procedure. The problems of technical implementation of this method are discussed.
Детерминанты латентности оборота контрафактных товаров на отечественном потребительском рынке
Authors: Бойко О.А. , Панов С.Л.
Published: December 2024

Производство и распространение контрафактной продукции – это стремительно растущее, динамичное и постоянно меняющееся явление. В настоящее время в Российской Федерации накоплен достаточный объем данных, подтверждающих широкую распространенность на отечественном потребительском рынке контрафактных товаров: начиная от продуктов питания, лекарственных препаратов и алкогольных напитков до комплектующих для автомобилей, самолетов и атомных электростанций. К сожалению, большое количество преступлений, связанных с нарушением прав товарный знак, остаются вне поля зрения контролирующих структур и правоохранительных органов. В статье авторами исследуются детерминанты, обуславливающие латентность преступных посягательств в отношении прав владельцев товарных знаков, в числе которых: амбивалентное отношение покупателей к контрафактной продукции, пассивность правообладателей товарных знаков в борьбе с оборотом поддельной продукции, недостатки в деятельности правоохранительных органов по защите прав на интеллектуальную собственность и ряд других.

The production and distribution of counterfeit products is a rapidly growing, dynamic and constantly changing phenomenon. Currently, the Russian Federation has accumulated a sufficient amount of data confirming the widespread availability of counterfeit goods on the domestic consumer market: from food, medicines and alcoholic beverages to components for cars, airplanes and nuclear power plants. Unfortunately, a large number of crimes related to trademark infringement remain out of sight of regulatory structures and law enforcement agencies. In the article, the authors investigate the determinants that cause the latency of criminal offences against the rights of trademark owners, including: the ambivalent attitude of buyers to counterfeit products, the passivity of trademark holders in the fight against the turnover of counterfeit products, shortcomings in the activities of law enforcement agencies to protect intellectual property rights and a number of others.