bluuebunny/crossref_metadata_2025 huggingface dataset:
Ergonomics Exercises on blood pressure control among hypertensive patients
Authors: Ayu Shinta Arini , Yulendasari Rika , Wijayaningsih Kartika Sari , Hartati Sri , Puspitasari Dewi
Published: September 2024

Background: Hypertension affects more than 31% of the adult population globally, data released by Cardiovascular Diseases (CDVs) hypertension is one of the largest contributors to cardiovascular disease. Untreated hypertension can increase the risk of heart disease, kidney failure, and stroke. The spread of hypertension will continue to grow strongly and it is predicted that in 2025 as many as 29% or around 1.15 billion individuals will suffer from hypertension. Deaths due to hypertension and its complications are estimated to reach 9.4 million people each year.
Purpose: To determine the effect of ergonomics exercises on blood pressure control among hypertensive patients.
Method: This study used a quasi-experimental pre-post test with group control design on the education of providing ergonomic exercise for controlling blood pressure in hypertensive patients or called Ce'Esi (prevent hypertension), divided into two groups, namely the intervention group and the control group. This study was conducted on all hypertensive patients who were treated at health centers in three cities in Indonesia, namely Cianjur Health Center, Permata Sukarame Health Center Bandar Lampung, and Tamanlanrea Health Center Makassar, which was carried out in March-July 2024. Data analysis used univariate and bivariate statistical tests Paired t-test and Independent t-test.
Results: There were significant differences in the intervention group, namely health status scores, knowledge, compliance, and diastolic pressure (p-value 0.000), while systolic pressure (p-value 0.003). in the control group, no significant differences were found in all variables. This shows that hypertension management education interventions and ergonomics exercises can improve the health status of hypertensive patients, knowledge, compliance, and lower diastolic blood pressure.
Conclusion: Health education and ergonomics exercise using videos in preventing hypertension can improve knowledge, compliance, health status, and lower blood pressure in hypertension sufferers.
Дослідження впливу зміцнювальної електронно-променевої обробки на структуру високолегованих інструментальних сталей
Authors: Шевченко О.В.
Published: September 2024

У роботі було досліджено вплив зміцнювальної електронно-променевої обробки на мікроструктуру та мікротвердість поверхневих шарів швидкорізальних та штампових сталей. Експериментально встановлено граничні режими обробки, при яких досягається максимальна мікротвердість поверхневого шару, і водночас попереджається поверхневе оплавлення. В якості комплексного параметру режиму обробки, що визначає характер нагрівання та охолодження інструменту при його обробці електронним променем, запропоновано використовувати щільність потужності електронного променя. Щільність потужності електронного променя включає в себе всі основні інші параметри режиму електронно-променевої обробки, а саме діаметр, потужність та швидкість переміщення електронного променя відносно виробу, що піддається обробці. Встановлено, що максимальна мікротвердість зміцненого шару досягається у разі високотемпературного гартування без оплавлення. При цьому також забезпечується максимальна дисперсність структури практично по всій глибині зміцненого шару. Поверхневе оплавлення інструменту при електронно-променевій обробці є вкрай небажаним. За таких умов обробки відбувається різке зменшення мікротвердості поверхневого шару, який містить значну кількість залишкового аустеніту. Гартування із утворенням значної кількості залишкового аустеніту призводить до різкого зменшення вмісту карбідів. Недостатній вміст карбідів та надмірний вміст залишкового аустеніту призводить до зменшення зносостійкості інструменту. Водночас погіршується пручання інструменту пластичній деформації при підвищених температурах. Встановлено, що на глибину зміцненого шару, що утворюється при електронно-променевій обробці швидкорізальних та штампових сталей, суттєвим чином впливає вихідна мікроструктура цих сталей. Задля отримання максимальної глибини зміцненого шару при електронно-променевій обробці швидкорізальних та штампових сталей, ці сталі слід піддавати попередній термічній обробці у вигляді об’ємного гартування та відпуску. Визначено оптимальні значення коефіцієнта перекриття при електронно-променевій обробці, при якому забезпечується мінімальна ширина зон відпуску.
Сучасні системи компенсації реактивної потужності в міських електричних мережах
Authors: Філімоненко Н.М. , Філімоненко К.В.
Published: September 2024

Стаття присвячена найбільш раціональним,ефективним та актуальним пристроям компенсаціїреактивної потужності в міських електричнихмережах з урахуванням їх особливостей. Значну рольвідіграє місце установки пристрою для компенсаціїта оптимізації його режимів роботи в існуючійсистемі електропостачання. Компенсаціяреактивної потужності в мережі вирішує рядпроблем, зокрема, зменшення втрат потужності таелектроенергії; покращення показників якостіелектроенергії; збільшити пропускну здатністьмережі. Існує багато методів компенсаціїреактивної потужності, але ця проблемазалишається актуальною. З розвитком технологій і,як наслідок, збільшенням споживання електроенергіїстає доцільним компенсувати реактивнупотужність у побутових споживачів. Ниніспостерігається збільшення споживання реактивноїпотужності (РП) споживачами міськихелектричних мереж. Основними причинами такоїситуації є: зростання величини та імовірнісногохарактеру споживання реактивної потужностіспоживачами; відсутність техніко-методичногозабезпечення заходів з компенсації реактивноїпотужності в електричних розподільних мережах;низький ККД косинусних конденсаторів длякомпенсації реактивної потужності в ПК черезвідмінність законів регулювання напруги тареактивної потужності. Забезпечення надійностіелектропостачання енергосистем, мережпромислових підприємств, інфраструктури міст іселищ є центральним як в експлуатації, так і приплануванні проектних рішень. Однією з важливихскладових забезпечення надійності та якостіелектропостачання є компенсація РП у побутовихспоживачів. Враховуючи навіть розраховані внормативно-правових актах значення коефіцієнтівпотужності, компенсація реактивної потужностіна непромислових об’єктах сьогодні не простофінансово та технічно можлива, а вкрай необхідна.Вибір способу збільшення коефіцієнта потужностіcosϕ повинен бути професійним і здійснюватисяспеціалізованою компанією. Будь-які заходи покомпенсації реактивної потужності слід проводититільки після проведення енергоаудиту об’єкта (абосегмента мережі), який дозволить визначитифактичні коефіцієнти потужності обладнання тавибрати оптимальну установку.
Геометричні ознаки перфораційного маркера та їх стійкість до перешкод
Authors: Логунов О.М.
Published: September 2024

Показана сфера застосування перфораційних маркерів –системи управління якістю продукції виробництв, що використовують сировину біологічного походження та механічну, термічну та хімічну обробку виробів, під час якої може видалятися зовнішній шар матеріалу разом з маркуванням, а також значно змінюватися оптичні характеристики поверхні виробів. Розглянуто специфічного вигляду маркер, який використовується у шкіряному виробництві. Розглянуто спосіб визначення орієнтації під час розпізнавання за допомогою геометричних ознак. Отримано вирази для визначення геометричних і моментних ознак, які використовуються під час розпізнавання зображення маркера, а саме координат центра ваги та значення осьових моментів інерції. Проведено комп’ютерний експеримент, в результаті якого отримано графіки розподілу кута повороту головної центральної осі з мінімальним моментом інерції відносно базового ряду маркера специфічного вигляду та графіки розподілу моментів третього порядку щодо головних центральних осейінерції.  Аналіз обраних геометричних і моментних ознак показав, що вплив окремих похибок визначення координат центрів отворів нівелюється й не спричиняє істотного впливу на їхні значення. Обґрунтовано вибір геометричних і моментних ознак для визначення орієнтації маркера. Для перевірки впливу на моментні ознаки похибок нанесення отворів та деформації маркерної матриці при обробці виробів було виконано експеримент з використанням 958 зображень маркування, отриманих на прототипі в реальних умовах виробництва. Проводилося розпізнавання та декодування маркерів, визначалися координати центрів всіх отворів та розраховувалися моментні ознаки для зображеного маркера і для того ж маркера, але без спотворень сітки розташування отворів. Побудовано гістограми розподілу відстаней між рядами отворів  та нормованого відхилення центрів отворів від вузлів сітки. Побудовано таблицю розкиду геометричних характеристик маркерів за результатами експериментальної обробки тестової партії. Показано, що розподіл відхилення отворів від вузлів координатної сітки має нормальний характер.
Redefining the Role of Educators in an AI-Enriched Educational Landscape – a project proposal
Authors: Krebs Adrijana
Published: September 2024

The influence of artificial intelligence (AI) and its disruptive impact on education requires a critical rethink of traditional roles and practices. Education 5.0, as the future of education, bridges educational technology innovations and human-centred approaches that harmonise intelligent teaching and stakeholder well-being. In addition to technical skills, teaching in Education 5.0 means considering academic integrity, fair and trustworthy assessment, data protection, applying a comprehensive ethical approach and developing soft skills. The main characteristics of tomorrow's students and AI technology influence the reform of the role of educators. This abstract outlines a proposal for the redefinition of the role of educators in the form of an international project. As the redefinition journey due to AI innovations has a dynamic character, this proposal activates a trend radar and actively includes stakeholders in the form of international focus group sessions throughout the project to embrace the current regulations and policies on the one hand and practical implementations on the other. It includes the active participation of educators as the main target group and invites students and education experts. Having an international perspective, an educator-student-expert point of view and current regulations in the background, this project will result in continuous professional development possibilities for all stakeholders, a redefined role of educators and loops of reflection. The proposal builds upon a finished international Erasmus+ Project that aimed to enhance the digital competencies of educators. As AI is overwhelming the educational practice, the redefinition of teaching practices and the role of educators is crucial to navigating the future of education.
Transforming Education for the 21st Century
Authors: Machaal Brahim
Published: September 2024

This paper reports on a study examining how well the curriculum of a bachelor’s program at a Moroccan university equips students with 21st-century skills to enhance employability. A mixed-method approach was used, combining curriculum evaluation, questionnaires and interviews with both students and faculty. The curriculum evaluation reviewed course content for the inclusion of key skills such as creativity, problem-solving, and digital literacy. The questionnaires gauged students' perceptions of their preparedness for the job market, while semi-structured interviews explored faculty perspectives on the curriculum's effectiveness in developing employability skills. Results from the curriculum evaluation revealed that most courses lacked alignment with 21st-century  skills. Questionnaire data showed that a majority of students felt unprepared for the job market. In contrast, faculty interviews indicated that instructors believed their courses offered sufficient skill development, attributing students' perceived lack of readiness to poor attendance and absenteeism.The study concludes that more interactive, engaging instruction is necessary, and students should be trained in metacognitive skills such as self-motivation and responsibility to foster lifelong learning and resilience. The findings also emphasize the urgent need for a curriculum revamp to integrate 21st-century skills, aligning with the evolving demands of the job market.
Team Case Study in Exploring Practical Problems in Undergraduate Marketing Education
Authors: Liu Wenjing
Published: September 2024

This paper explores the teaching reform method of incorporating team case studies into undergraduate marketing education. Team case studies provide a platform for students to engage with authentic marketing scenarios, fostering critical thinking, problem-solving, and collaboration skills. Additionally, such studies can bridge theory and practice, enabling students to apply their knowledge to real-world problems in a collaborative setting. Through case analysis, students can understand brands’ marketing strategies and their effects, master the skills of market research and analysis, and be able to accurately evaluate consumer needs and the strengths and weaknesses of competitors. This paper discusses the current status of undergraduate marketing education, explores the benefits of team case studies, and proposes strategies for effectively integrating them into marketing curricula.
Characteristics of Ice Cream Innovation Based On Soy Whey and Dragon Fruit Peel Puree and Its Potential as a Functional Food
Authors: Putra I Gede Arie Mahendra , Wangsaputri Gabrielle Thasya , Putri Maria Rosary Mayaranti , Sutisna Arlin Ramadhan
Published: September 2024

Soy whey is a byproduct derived from tofu production processes. The development of soy whey ice cream could be an innovative product with excellent functional properties. However, the color it produces wasn’t quite as appealing, hence the addition of natural coloring is necessary such as dragon peel fruit. The aimed of this research was to develop soy wey and dragon fruit peel puree, into a functional ice cream product. The research design used Completely Randomized Design (CRD) with five concentration comparisons of soy whey and dragon fruit peel puree i.e. 90:10, 70:30, 50:50, 30:70, and 10:90. Observed parameters include sensory evaluation, overrun, melting time and colors values of L*, a*, and b* as well as antioxidant activity and phenolic total. Data analysis was conducted using ANOVA and followed by the Duncan test of significance (P<0.05). The best treatment used is T5 with the 10:90 ratio. The panelists' acceptance of the treatment were color attribute (slightly liked) resulting in a flirt red color characteristic, aroma attribute (neutral), taste attribute (slightly liked), texture attribute (slightly liked), and overall acceptances (slightly liked). This treatment contains antioxidant activity of 51,84% and 108,83 mg/100 gr of phenolic content. Furthermore, this treatment also produced an ice cream with overrun value of 43.59%, melting time of 38.67 minutes, and the L*, a*, and b* colors values of 41.5; 38.9; and 5.1 with the “flirt red” as a color characteristic.
La Gestión pública en el fortalecimiento de la gobernabilidad en Perú
Authors: Zavaleta Cabrera Emigdio Melquiades
Published: September 2024

Las constantes demandas sociales por parte de la ciudadanía reflejan la incapacidad del estado para canalizar los recursos y responder de manera eficiente, creándose un clima de ingobernabilidad. En ese contexto, el estudio tiene como objetivo analizar la gestión pública como factor determinante en el fortalecimiento de la gobernabilidad en Perú, dada la importancia del papel que representa en el desarrollo social del país. La metodología empleada fue la investigación cualitativa, estudio de revisión bibliográfica basado en el paradigma interpretativo, de tipo documental, utilizándose como técnica de recolección de datos la indagación, selección, revisión e interpretación de artículos científicos en relación al tema de investigación. Los resultados obtenidos muestran que, en la gestión pública existen factores determinantes en la gobernabilidad del país: el liderazgo, gestión del talento humano, planificar operaciones, diagnóstico, políticas públicas, calidad de los procesos, ética, transparencia, auditoria de gestión, participación ciudadana, gestión de calidad, responsabilidad social y mejora continua. Concluyendo que, el éxito de la gestión pública depende de estos factores, que intervienen de manera positiva en la eficiencia y eficacia de la gestión, que conllevan al fortalecimiento de la gobernabilidad, buscando el equilibrio entre las ofertas del Estado y las necesidades de la población.
Failure Analysis of High Voltage Disconnector Under Seismic Load
Authors: Selvam R. Panneer , Nampoothiri A.N.N. , Gupta Yamini , Babu D. Nagesh
Published: September 2024

A disconnector is a mechanical switch that isolates the essential part of the circuit where the repair/replacement of equipment is planned. High voltage disconnectors used in substations are fragile to earthquake events. Mechanical dynamics of the disconnector switch change with a change in the position of the main and earth-moving contact. Hence seismic performance evaluation of disconnectors is highly complicated, seismic behavior should be evaluated under all possible disconnector positions. High voltage disconnectors located in seismic Zones IV and Zone V of India are vulnerable to seismic events. Seismic performance evaluation of high voltage disconnectors, transformer bushings, instrument transformers, circuit breakers etc., along with interconnection of equipment and anchoring will prevent failure in the event of an earthquake. Hence, demand for safe and uninterrupted electrical service in a post-earthquake environment can be maintained. Tri-axial shaker system of Central Power Research Institute (CPRI) can simulate realistic earthquake vibration simultaneously in two horizontal and one vertical direction. Failure analysis of 245 kV disconnectors subjected to seismic loading by the shake table method is presented in this paper.
Statistical Approach with Machine Learning- Based Intrusion Detection System for CyberAttack Discrimination in the Smart Grid
Authors: Nakkeeran M. , Narayanan V. Anantha , Sivakumar P. Bagavathi , Balamurugan S.
Published: September 2024

With rapid power grid digitalisation, keeping the private communications network utilities separate from the public communications networks is increasingly more challenging. It paves the way for the attacker to intrude into the industrial control system by compromising the networks. The proposed framework of Statistical Approach with a Machine Learning classifier (SAML) with Synthetic Minority Oversampling Technique (SMOTE) aims to improve early cyberattack discrimination in the smart grid with optimal hyperparameterized tuning of Principal Component Analysis (PCA) with ExtraTrees and AdaBoost Classifier for Feature Extraction (Dimensionality Reduction), bagging, and boosting, respectively. The significance of the SAML-PCA is that it can handle missing rates by replacing INFinity seen attack records with Zero for the specific column of apparent impedance of the relay to avoid blackouts and cascading failures. The proposed SAML-PCA model achieves a higher accuracy of 95.28% for ExtraTrees with Adaboost Classifier than the ML Classifiers and existing approaches.
An in-depth examination of guerilla marketing strategies in sports industry
Authors: Akyüz Oktay , Ersöz Gözde , Ince Yenilmez Meltem
Published: September 2024

High competition as a result of technological advancements and a rise in the diversity of products in sports has resulted in a trend toward a more active procedure in sports marketing. To gain a competitive edge, every option to achieve marketing goals in line with the financial and technological strengths of the sports industry is analyzed. Guerrilla marketing tactics that try to draw people's attention by posting diverse promotional messages about sports in unexpected areas where consumers do not anticipate meeting are investigated in this research. In this descriptive study, a literature review was conducted initially, followed by a qualitative approach and case analysis methodology in the research section. Purposive sampling was used in the research, and all firms that engage in guerilla marketing tactics in the sports industry in Turkey and throughout the world were investigated. The data sources include "Akademia, ResearchGate, Google Scholar, Science-Direct, and Pubmed, among others." In addition to databases, scientific books, papers, and internet/newspaper headlines were collected, and the study outlined 24 marketing methods in the sports industry utilizing the guerilla marketing methodology.
MASTER SPORCULARI CİDDİ BOŞ ZAMAN AKTİVİTESİ OLARAK KOŞUYA MOTİVE EDEN FAKTÖRLER ÖLÇEĞİNİN GELİŞTİRİLMESİ
Authors: Yıldız Zeynep , Ardahan Faik
Published: September 2024

Bu çalışmanın amacı, master sporcuları ciddi boş zaman aktivitesi olarak koşuya motive eden faktörler ölçeğinin (CBZKÖ) geliştirilmesidir. Çalışmada nicel araştırma tekniklerinden online/yüz yüze anket yöntemi kullanılmıştır. Ana kütlenin sınırlarını tam olarak belirlemek mümkün olmadığı için örneklem büyüklüğü olarak tesadüfi olarak seçilmiş ve gönüllü olarak çalışmaya destek veren 410 kişiden oluşmuştur. 44 maddeden oluşan madde havuzuna Açıklayıcı Faktör Analizi (AFA) uygulanmıştır. Yapılan son analizde Kaiser-Meyer-Olkin değeri 0,919, Bartlett’s Test of Sphericity p
EXPERIENCES OF STUDENT ATHLETES WITH DUAL CAREER REGARDING OFFICIAL LEAVE PROBLEMS IN FORMAL HIGHER EDUCATION
Authors: Taş Zeki
Published: September 2024

Türkiye’de öğrenci sporcular açısından profesyonel spor yapmak birtakım sorunları da beraberinde getirmektedir. Bu sorunlara kaynak oluşturan ana unsurun resmi izin süresine ilişkin mevzuatların olduğu görülmektedir. Örgün eğitimdeki resmi izin süresine ilişkin ilgili mevzuatın odak noktaya alındığı bu çalışmada çift kariyerli öğrenci deneyimlerine ulaşmak ve bu doğrultudaki sorunları ortaya koymak amaçlanmaktadır. Nitel araştırma yöntem ve tekniklerinin kullanıldığı çalışmada fenomenolojik desen benimsenmiştir. Sorunların çeşitli yönleriyle değerlendirilebilmesi için çalışma grubu maksimum çeşitlilik örnekleme yöntemi kullanılarak 20 spor bilimleri fakültesi öğrencisinden oluşturulmuştur. Katılımcı grup belirlenirken ayrıca ölçüt örnekleme tekniği de kullanılmıştır. Veriler araştırmacı tarafından oluşturulan yarı yapılandırılmış görüşme formu aracılığı ile yüz yüze yapılan görüşmelerden elde edilmiştir. Veriler MAXQDA nitel veri analiz programı kullanılarak içerik analizi tekniğiyle analiz edilmiştir. Analiz sonucunda öğrenci sporcuların örgün eğitim sürecinde resmi izin sorunlarına bağlı olarak; akademik, fiziksel, psikolojik, sosyal, sportif, ailevi ve ekonomik sorunlarla karşılaştıkları tespit edilmiştir. Bu araştırma, sorunun çözümüne yönelik mevzuata ilişkin düzenlemeler yapılmasını önermektedir.
COMPARISON OF NUTRITIONAL STATUS, ANTHROPOMETRIC FEATURES AND BONE MINERAL DENSITY MEASUREMENTS IN ADOLESCENT WRESTLERS AND APPRENTICE JOCKEYS
Authors: Ayar Muttalip , Özbey Fatih
Published: September 2024

The aim of this study is to investigate the relationship between bone mineral density and nutritional status in adolescent apprentice jockeys and wrestlers. The study included a total of 54 athletes, consisting of 31 apprentice jockeys and 23 wrestlers. More ever, in the evaluation of the study 7 apprentice jockeys and 5 wrestlers whose weight averages were between the 25th and 75th percentiles were also evaluated. All athletes that participated in the study got their bone mineral density measured by Dual Energy X-ray Absorptiometry (DEXA) method, and also got their 7-day food and fluid intake recorded. Based on overall evaluation, apprentice jockeys were found to have lower total-body bone mineral density (1.013±0.99) than wrestlers (1.352±0.121). However, the BMI (kg/m2) and mean age of the athletes whose weights are between the 25th and 75th percentile were found to be similar, and the BMD (1.226±0.084) values of the wrestlers in this group were also higher than the apprentice jockeys (1.062±0.037) (p= 0.007). Food and fluid intake comparisons showed that apprentice jockeys had higher energy intake (kcal/kg), CHO intake (g/kg) and water intake (ml/kg) compared to wrestlers. Statistical analysis revealed a positive correlation between calcium and phosphorus intake and bone mineral density measurements (p < 0.05). It has been determined that the BMD values of the wrestlers are higher than the apprentice jockeys, whether they have similar BMI and average age or not. Wrestlers resort to less weight loss practices and less food restriction, and engage in higher-intensity exercise, which may be associated with higher bone mineral density.
BEDEN EĞİTİMİ ÖĞRETMENLERİNİN PROAKTİF KİŞİLİK VE İŞ DOYUMLARININ İÇSEL VE DIŞSAL MOTİVASYON DÜZEYLERİ ÜZERİNDEKİ ETKİSİ
Authors: Filiz Bijen , Erol Nurgül
Published: September 2024

Bu araştırmanın amacı, beden eğitimi öğretmenlerinin proaktif kişilik ve iş doyumlarının içsel ve dışsal motivasyon düzeylerine etkisini incelemektir. Nicel araştırma olarak kurgulanan araştırmada ilişkisel tarama yöntemi kullanılmıştır. Araştırmada “Proaktif Kişilik Ölçeği”, “İçsel ve Dışsal Motivasyon Ölçeği”, “İş Doyum Ölçeği” kullanılmıştır. Araştırmada veri grubunu 2023-2024 eğitim-öğretim yılında Afyonkarahisar ilinde görev yapan 169’u kadın, 263’ü erkek, toplam 432 gönüllü beden eğitimi öğretmeni oluşturmuştur. Çalışmada aritmetik ortalama ve standart sapma analizi, ki kare analizi, Pearson momentler çarpımı korelasyon analizi ve çoklu doğrusal regresyon analizi yapılmıştır. Analiz sonucunda, beden eğitimi öğretmenlerinin cinsiyete ve okul türüne göre mevcut işten memnun olma durumlarında anlamlı farklılık bulunmuştur. Beden eğitimi öğretmenlerinin proaktif kişilik ve içsel motivasyon puanlarının yüksek, dışsal motivasyon ve iş doyumu puanlarının orta düzeyde olduğu tespit edilmiştir. Erkek olan ve devlet okulunda çalışan beden eğitimi öğretmenlerinin mevcut işlerinden daha memnun oldukları tespit edilmiştir. Ayrıca, beden eğitimi öğretmenlerinin iş doyumları ve proaktif kişilik özellikleri arttıkça içsel ve dışsal motivasyon düzeylerinin de arttığı belirlenmiştir. Ek olarak, proaktif kişilik ve iş doyumunun içsel ve dışsal motivasyonu pozitif yönde yordadığı tespit edilmiştir. Sonuç olarak beden eğitimi öğretmenlerinin mevcut işlerinden oldukça memnun oldukları, proaktif kişilik ve iş doyumlarının içsel ve dışsal motivasyon düzeylerini olumlu yönde etkilediği ifade edilebilir.
BEDEN EĞİTİMİ DERSLERİNDE TOPLUMSAL CİNSİYET EŞİTLİĞİNİ SAĞLAMAK MÜMKÜN MÜ? KORFBOL SPORUNUN ETKİSİNE DAİR NİTEL BAKIŞ
Authors: Elmas Safter , Açıkgöz Selçuk , Uzunhasan Mehmet Berk
Published: September 2024

Bu araştırmanın amacı, beden eğitimi derslerinde korfbol sporunun uygulanmasının beden eğitimi ve spor alanında toplumsal cinsiyet eşitliğini sağlamak konusunda ne gibi katkıları olabileceğini ele almaktır. Çalışmada bir toplumsal kurum olan beden eğitimi ve spor alanında ortaya çıkan toplumsal cinsiyet düzenini ve düzeni korfbol uygulamaları ile dönüştürmeyi derinlemesine anlayabilmek adına nitel araştırma yöntemini tercih ettik. Bu bağlamda, çalışmada korfbol sporuyla uğraşan 8 öğrenci-sporcu ve 2 eğitmen-antrenör ile derinlemesine bireysel görüşmeler yaptık ve veri toplamada yarı yapılandırılmış bireysel görüşme tekniğini kullandık. Verileri yorumlayıcı içerik analizi yoluyla ve tematik kodlamalar yaparak analiz ettik. Analiz sonunda 2 farklı tema ortaya çıkmıştır: 1) toplumsal cinsiyetlendirilmiş beden eğitimi ortamı; 2) beden eğitiminde eşitlikçi bir imkân: korfbol. Elde ettiğimiz bulgular sonucunda korfbol branşının beden eğitimi ortamında uygulanmasının özellikle kız çocuklarına ve genç kadınlara toplumsal cinsiyet eşitliği konusunda olumlu kazanımlar sağlayacağını söyleyebiliriz. Bununla birlikte, heterososyal bir alan olan korfbol ortamının bireylere eşitlikçilik, dayanışma, takımdaşlık, sosyalleşme, kendini özgürce ifade etme gibi özellikleri kazandırabileceğini de bulgular ışığında öne sürebiliriz.
BASIC PSYCHOLOGICAL NEEDS IN EXERCISE, HEALTHY LIFE BEHAVIOR AND WELL-BEING: A STUDY ON EXERCISING INDIVIDUALS
Authors: Şile Berna , Canpolat A. Meliha
Published: September 2024

The aim of this study is to determine the levels of healthy lifestyle behaviors and well-being of individuals who exercise and to examine the effect of healthy lifestyle behaviors on basic psychological needs and well-being. A total of 297 individuals who do sports, whom 195 of woman and 102 of men, are included in the study. Basic Psychological Needs in Exercise, Healthy Lifestyle Behavior and Psychological Well-Being scales were used to determine the basic psychological needs, well-being during exercise and healthy lifestyles of individuals participating in physical activity. To evaluate the data were applied ANOVA, pearson correlation analysis and multiple regression analysis. The results showed that there was a low positive correlation between the subscales of basic psychological needs in exercise and healthy lifestyle behaviors and well-being levels of exercising individuals. In addition, it was found that yoga practitioners had higher mean scores of well-being and health responsibility, nutrition, physical activity, stress management, spiritual development, subscales than fitness and pilates.
High-Fidelity Film-Cooled Rotor High Pressure Turbine Simulation using Metric-Based Anisotropic Mesh Adaptation
Authors:   INRIA, GammaO Project, Alauzet Frederic , Parente Enza ,   Safran Tech, Remigi Alberto ,   Safran Tech
Published: September 2024

This paper shows the ability of metric-based anisotropic mesh adaptation to accurately predict the aerodynamic flow field on a particularly complex test case: a film-cooled rotor high pressure turbine. Film-cooled high pressure turbine blades are very complex turbomachinery components that in recent years results in very complex geometries. In fact increasing temperatures in the combustion chamber results in cooling needs on the blade surface. For this reason, the film cooled turbine are composed of a cooling network and many different-shaped film-cooling holes which makes these geometries extremely complex to mesh with structured standard meshing approaches. Consequently, metric-based anisotropic mesh adaptation seems quite appropriate for such applications thanks to the fact that it provides automation of the whole process and it allows significant gains in terms of simulation accuracy by capturing coherent flow features proper to the turbomachinery physics. The benefits in terms of accuracy and mesh-convergence are demonstrated on a realistic film-cooled rotor high pressure turbine.
Performance Calculation of the Thermal Management System for a Fuel Cell Aircraft Engine
Authors:   Institute of Jet Propulsion and Turbomachinery, RWTH Aachen University, Niehuis Martin , Jeschke Peter ,   Institute of Jet Propulsion and Turbomachinery, RWTH Aachen University
Published: September 2024

This paper presents a novel approach to the design of fuel cell thermal management systems, offering significant advantages for the evaluation of system architectures and design variables. The new performance calculation method considers the flow of cooling air as a separate cycle process. Analytical correlations are employed to describe the cycle process that the cooling air undergoes as it flows through the thermal management system, similar to the cycle process of an aircraft gas turbine. The power, efficiency, and other variables of the propulsion system are determined by merging the cycle processes of the propeller and the thermal management, as well as the energy conversion in the electric powertrain. We illustrate the capabilities of this approach through a sensitivity study of a small aircraft propulsion system with a required thrust of 1000N at a cruise speed of 85m/s. This study examines the impact of three exemplary design variables – cooling fan pressure ratio, heat exchanger frontal area and fuel cell current density – on the overall performance of the reference propulsion system. Optimal values for these design variables have been determined to achieve maximum efficiency and minimum propulsion system mass. For example, a thermal management design without a cooling fan has a lower overall efficiency (−18.2%) and higher mass (+17.3%) compared to a design with a cooling fan pressure ratio of 1.04. In summary, this paper presents a method for designing the thermal management of a fuel cell propulsion system and discusses the impact of design variables on engine performance. The insights provided can help engineers to optimize fuel cell propulsion system design in terms of efficiency, mass, and hydrogen consumption.
A harmonic balance solver for the aeroelastic analysis of turbomachinery components on unstructured grids
Authors:   German Aerospace Center (DLR), Kersken Hans-Peter , Sivel Pierre ,   German Aerospace Center (DLR), Müller Michael ,   German Aerospace Center (DLR), Frey Christian ,   German Aerospace Center (DLR)
Published: September 2024

The harmonic balance method has proven to be an efficient tool for the study of aeroelastic phenomena associated with blades in turbomachinery components. In the turbomachinery industry it is used, for example, to predict the flutter susceptibility of blades using structured meshes. For the analysis of more complex geometries, like cavities or labyrinth seals, unstructured grids are easier to create than structured ones to accurately model geometric details of these components. With this application in mind, specifically the flutter analysis of labyrinth seals, an existing harmonic balance solver for the unsteady Reynolds averaged Navier-Stokes equations on structured grids has been extended to work efficiently on unstructured grids. Although the harmonic balance algorithm itself is agnostic to the spatial discretization method, as it is only related to the discretization in time, some adaptations are necessary for an efficient implementation. To verify the extensions for unstructured grids, the harmonic balance solver is applied to the flutter analysis of a NACA airfoil exhibiting an oscillating shock-induced separation region. To demonstrate the ability to handle unstructured mixed-element grids, a flutter analysis of a generic labyrinth seal test case on an unstructured grid is performed.
Time step criteria for rotor-stator unsteady simulations of turbomachinery
Authors:   Research Institute of Aero-Engine, Beihang University, Zhou Haowei , Du Pengcheng ,   Research Institute of Aero-Engine, Beihang University, Ning Fangfei ,   Research Institute of Aero-Engine, Beihang University
Published: September 2024

With the rapid improvement of computing power, unsteady Reynolds-Averaged Navier-Stokes (U-RANS) solvers are increasingly used to get a deeper comprehension of the rotor-stator unsteady flows inside turbomachinery. The dual-time stepping method is adopted in most U-RANS solvers and the determination of the optimal size of physical time step is a crucial procedure for rotor-stator U-RANS simulations, and it is the primary purpose of this paper. The criteria for determining the size of physical time step for rotor-stator interactions with and without filtering mixing plane were proposed through theoretical analysis. For conventional no-filtering U-RANS simulations, the number of physical time steps is determined by the number of circumferential grid points and the characteristic propagation velocity of flow. While for U-RANS simulations adopting the filtering mixing plane method, the number of retained harmonics through the filtering mixing plane plays an important role. Then, three numerical cases including subsonic rotor-stator interactions, IGV-rotor interactions and rotor-stator interactions coupled with inlet distortion, were carried out to verify the effectiveness of proposed criteria. The results showed that the requirement of time step independence can be satisfied when the number of physical time steps exceeds the number estimated by the criteria, thus the effectiveness of the proposed criteria has been verified.
PENGARUH SISTEM INFORMASI AKUNTANSI TERHADAP PENGAMBILAN KEPUTUSAN BISNIS BAGI PELAKU USAHA MIKRO KECIL (UMK) DI KOTA KENDARI
Authors: Anto La Ode , Labangu Yuli Lestari , Putri
Published: September 2024

Penelitian ini bertujuan untuk menguji dan mengetahui pengaruh sistem informasi akuntansi terhadap pengambilan keputusan bisnis di Kota Kendari . Variabel pada penelitian ini terdiri dari sistem informasi akuntansi sebagai variabel independen, dan pengambilan keputusan bisnis sebagai variabel dependen. Penelitian menggunakan teknik pengambilan sampel random sampling yang berjumlah 90 sampel pada UMK bidang kuliner yang ada di Kota Kendari. Metode pengumpulan data menggunakan kuesioner dengan menggunakan pendekakatan kuantitatif.   Metode analisis data regresi linear sederhana dengan bantuan aplikasi spps versi 25. Hasil penelitian ini menujukkan bahwa pengaruh sistem informasi akuntansi berpengaruh positif dan signifikan terhadap pengambilan keputusan bisnis khususnya pada bidang kuliner di Kota Kendari, artinya bahwa semakin baik penerapan sistem informasi akuntansi maka semakin baik dalam pengambilan keputusan bisnis.
PENERAPAN ACTIVITY BASED COSTING PADA TARIF JASA RAWAT INAP RUMAH SAKIT UMUM DAERAH KABUPATEN MUNA BARAT
Authors: Intihanah  , Syaiah  , Susi Susanti Lilis
Published: September 2024

Penelitian ini bertujuan untuk mengetahui Penerapan Activity Based Costing Pada Tarif Jasa Rawat Inap Rumah Sakit Umum Daerah Kabupaten Muna Barat. Sumber data yang digunakan adalah data primer dan data sekunder. Metode pengumpulan data menggunakan wawancara, studi kepustakaan dan dokumentasi. Metode analisis dalam penelitian ini adalah metode analisis komparatif yang menyajikan dan membandingkan metode penentuan biaya pelayanan rumah sakit yang telah diterapkan oleh rumah sakit dengan menggunakan Activity Based Costing (ABC). Hasil penelitian menunjukan tarif jasa rawat inap dengan pendekatan Activity Based Costing memberikan hasil yang sesuai dengan aktivitas-aktivitas yang dibebankan. Dari hasil perhitungan tarif jasa rawat inap dengan menggunakan metode Activity Based Costing apabila dibandingkan dengan tarif rawat inap yang berlaku di RSUD Muna Barat saat ini, maka metode ABC memberikan hasil yang lebih mahal. Perbedaan yang terjadi antara tarif jasa rawat inap yang berlaku di rumah sakit ini dan metode ABC, disebabkan karena pembebanan biaya overhead pada masing-masing produk.
ANALISIS IMPLEMENTASI SISTEM PEMUNGUTAN PAJAK KENDARAAN BERMOTOR MELALUI LAYANAN DRIVE THRU PADA KANTOR BADAN PENDAPATAN DAERAH PROVINSI SULAWESI TENGGARA
Authors: Awaluddin Ishak , Hadisantoso Erwin , Marni
Published: September 2024

Penelitian ini bertujuan untuk menganalisis implementasi layanan samsat Drive Thru sebagai layanan pembayaran pajak kendaraan bermotor Kota Kendari. Metode pengumpulan data dalam penelitian ini menggunakan wawancara dan dokumentasi. Metode analisis yang di gunakan adalah analisis deskriptif. Hasil penelitian menunjukkan bahwa dengan adanya layanan ini Bapenda Kota Kendari khususnya dibidang pajak meningkat dengan pesat. Hal ini berarti bahwa layanan ini mampu meningkatkan kesadaran masyarakat akan pajak. Dalam penelitian ini dengan adanya layanan tersebut dapat memunculkan beberapa perubahan yaitu pertama, pemilik kendaraan dapat membayar pajak mereka dengan cepat. Dan yang kedua, dengan memberikan akses yang lebih mudah untuk membayar pajak, samsat Drive Thru ini dapat mendorong lebih banyak orang untuk mematuhi kewajiban masyarakat.
PENGARUH KOMPETENSI SUMBER DAYA MANUSIA DAN PEMANFAATAN TEKNOLOGI INFORMASI TERHADAP KUALITAS LAPORAN KEUANGAN PADA PEMERINTAH KABUPATEN KOLAKA
Authors: Nurdin Emillia , Labangu Yuli Lestari , Wahyuni Zahra , Fachmi Idris Muhammad
Published: September 2024

Penelitian ini bertujuan untuk menguji dan mengetahui pengaruh kompetensi sumber daya manusia dan pemanfaatan teknologi informasi terhadap kualitas laporan keuangan. Sampel pada penelitian ini adalah pegawai bagian pengelola keuangan pada OPD Kabupaten Kolaka yaitu sebanyak 97 orang dengan menggunakan teknik pengambilan sampel Purpossive Sampling. Metode pengumpulan data menggunakan kuesioner, wawancara, dokumentasi dan studi  kepustakaan. Analisis data menggunakan metode analisis deskriptif dan analisis linear berganda dengan bantuan aplikasi software IBM SPSS Statistics Versi 25. Hasil penelitian ini menunjukan bahwa (1) Kompetensi Sumber Daya Manusia berpengaruh positif terhadap Kualitas Laporan Keuangan, semakin baik kompetensi sumber daya manusia maka kualitas laporan keuangan yang disajikan akan semakin baik. (2) Pemanfaatan Teknologi Informasi berpengaruh positif terhadap Kualitas Laporan Keuangan. Hal tersebut menunjukkan bahwa semakin baik pemanfaatan teknologi informasi dalam kualitas laporan keuangan maka meningkatkan efektifitas dalam pengelolaan laporan keuangan. (3) dan Kompetensi Sumber Daya Manusia dan Pemanfaatan Teknologi Informasi berpengaruh terhadap Kualitas Laporan Keuangan pada OPD Kabupaten Kolaka. Kesimpulan penelitian ini yaitu semakin baik kompetensi sumber daya manusia dan penilaian pemanfaatan teknologi informasi maka kualitas laporan keuangan yang dihasilkan akan semakin baik juga.
PENGARUH PERSEPSI PELAKU USAHA MIKRO KECIL DAN MENENGAH DAN PENGETAHUAN AKUNTANSI TERHADAP PENGGUNAAN INFORMASI AKUNTANSI
Authors: Hadisantoso Erwin , Pebrianti Vina Olivia , Patima
Published: September 2024

Penelitian ini bertujuan untuk menguji dan menganalisis pengaruh persepsi pelaku usaha mikro kecil dan   menengah dan pengetahuan akuntansi terhadap penggunaan informasi akuntansi di Kota Kendari. Penelitian ini menggunakan teknik pengambilan sampel random sampling yang berjumlah 91 sampel pada UMKM di bidang kuliner yang ada di Kota Kendari. Metode pengumpulan data menggunakan kuisioner dengan menggunakan metode kuantitatif. Metode analisis data menggunakan analisis regresi linear berganda dengan bantuan aplikasi spss versi 25. Hasil penelitian ini menunjukkan bahwa (1) persepsi pelaku usaha mikro kecil dan menengah berpengaruh  positif dan signifikan terhadap penggunaan informasi akuntansi khususnya sektor kuliner di Kota Kendari. (2) pengetahuan akuntansi berpengaruh positif dan signifikan terhadap penggunaan informasi akuntansi khususnya sektor kuliner di Kota Kendari .(3) persepsi pelaku usaha mikro kecil dan menengah dan pengetahuan akuntansi berpengaruh secara simultan terhadap penggunaan informasi akuntansi.
Reform of deformation control technology for railway tunnels with squeezing surrounding rock: case study of the new and existing Wushaoling tunnels in China
Authors: Huang Changfu , Li Shaohua , Li Guoliang , Yao Tiejun , Wu Xiaohua
Published: September 2024

Tunnel construction subject to surrounding rock squeezing deformation can induce support cracking, intrusion, and collapse. Herein, the existing Wushaoling tunnel of Lanzhou–Wuwei second line railway and the new Wushaoling tunnel of Lanzhou–Zhangye third and fourth line railways are compared to analyze and discuss the progress in deformation control techniques for railway tunnels surrounded by squeezing rock. Further, a technical system for large deformation control is preliminarily established. The maximum support deformation of the Wushaoling tunnel do not exceed the reserved deformation. The large deformation of tunnel surrounding rock is generally controlled to achieve better support effect. The main control measures are as follows. (1) The section design method based on the deformation classification is suitable for squeezing surrounding rock. (2) The support structure design involves anti-releasing and early controlled releasing, and measures such as increased support stiffness, increased reserved deformation, and multi-layer supports can be employed. (3) The micro-bench method reduces the closure time of the inverted arch to control deformation. (4) To realize quick excavation and support and reduce the disturbance to the surrounding rock, a cantilever excavating machine can be used for excavation and an intelligent arch trolley can be utilized to realize unmanned vertical arch drilling, anchoring, and grouting.
Paleosalinity characteristics of the 1st member in the lower cretaceous prosopis formation, Baobab North Sag, Bongor Basin
Authors: Li Xianbing , Xiao Kang , Sun Long , Wu Shenghe , Xu Zhenhua , Jiang Sichong , Wu Yuheng
Published: September 2024

Paleosalinity is one of the important properties of paleolake water and is crucial for paleoenvironmental and paleoclimatic reconstruction. However, the paleosalinity characteristics of the 1st Member in the Lower Cretaceous Prosopis Formation (P1 Member) from the Baobab North Sag have not been systematically reported until now. In this study, 16 representative mudstone samples were collected from three coring wells and detailed elemental geochemical investigations were presented to reconstruct the salinity and water types for the P1 Member. The results show that the Sr/Ba ratios range from 0.32 to 0.93, indicating fresh water and brackish water, while the B/Ga ratios range from 1.6 to 3.4, also exhibiting the presence of fresh water and brackish water. The equivalent boron contents range from 84.3 ppm to 185 ppm, with the cast point located in the freshwater interval. Moreover, salinity values ranging from 1.2‰ to 11.0‰ for the Adams’ paleosalimeter and from 6.1‰ to 9.3‰ for the Couch’s paleosalimeter are indicative of brackish water, precisely mesohaline water. After sufficiently eliminating the interferences of diagenesis from the results, combined evaluation of evolutionary profiles and cross-plots of paleosalinity proxies suggest that the B/Ga ratio is the most important proxies for distinguishing water salinity types within the studied interval. The results of the B/Ga ratio indicate that the presence of two main water salinity types: fresh water (mainly distributed in the P14 and P12 sub-members) and brackish water (mainly distributed in the P13 and P11 sub-members). Furthermore, high salinity records in the study area correspond to arid climates, while low salinity intervals correspond to semi-arid and humid pulses, which provides a useful reference for the reconstruction of paleosalinity in terrestrial closed lake basins during the Cretaceous global warming period.