bluuebunny/crossref_metadata_2025 huggingface dataset:
Untersuchung der Ursachen von Lageimperfektionen selbstbohrender Schrauben und Identifikation von Methoden zu deren Minimierung
Authors: Baldauf Eva
Published: October 2024

Unerwünschte Berührungen und Kollisionen zwischen benachbarten Schrauben sind technische Probleme mit entsprechender Sicherheitsrelevanz. Sie werden durch Lageimperfektionen verursacht, die sowohl systematisch als auch zufällig beim Einschrauben entstehen. Um Ursachen von solchen Lageimperfektionen zu untersuchen, wurden fast 1200 Einschraubversuche in BSH, BSP und FSH durchgeführt. Für variierende Untersuchungsparameter wurde die Abweichung zwischen dem geplanten und dem tatsächlichen Austrittspunkt der Schrauben ermittelt. Die Ergebnisse belegen, dass der Winkel α zwischen Schraubenachse und Faserrichtung des Holzes, die Schlankheit sowie die Spitzenausführung einer Schraube und der Einschraubwinkel die Ausprägung von Lageimperfektionen signifikant beeinflussen. Ferner wurden Methoden zur Minimierung von Lageimperfektionen in fast 600 Einschraubversuchen untersucht. Präzise hergestellte Pilotbohrungen erwiesen sich dabei als wirksames Mittel zur Reduzierung von Lageimperfektionen.
Heterogeneidade ambiental e sua influência na riqueza e diversidade taxonômica da Floresta Tropical Seca em Pernambuco, Brasil
Authors: Almeida Anália Carmem Silva de , Lopes Geraldo Majella Bezerra , Formiga Sônia Albuquerque
Published: October 2024

O objetivo com o presente estudo foi o de pesquisar a riqueza de espécies e as diversidades alfa e beta de comunidades arbóreas em seis áreas da Floresta Tropical Seca (FTS), localizada no estado de Pernambuco, Nordeste do Brasil. As hipóteses testadas foram: (i) variações de altitude, temperatura, pluviosidade e luminosidade não influenciam a riqueza de espécies e a diversidade alfa, mas afetam a diversidade beta, e (ii) a substituição das espécies (turnover) é o fator determinante da estrutura das comunidades nas áreas de FTS estudadas, significando que essas comunidades estão sob a pressão da filtragem ambiental. A primeira hipótese foi apenas parcialmente verificada pelos resultados, uma vez que um dos gradientes ambientais, mais especificamente a pluviosidade, exerceu um efeito significativo sobre a riqueza de espécies e a diversidade alfa. No entanto, todos os gradientes ambientais afetaram a estrutura das comunidades e a diversidade beta. O processo de turnover foi identificado como fator determinante para a estrutura das comunidades arbóreas da FTS, validando a pressão causada pelos filtros abióticos e verificando a segunda hipótese. A estrutura da comunidade e a diversidade beta foram influenciadas principalmente pela pressão da altitude sobre o turnover e, em menor grau, da temperatura e da precipitação sobre o aninhamento.
Impacto clínico e econômico do Antimicrobial Stewardship Program em um hospital escola no Brasil
Authors: Brondani Luiz Eduardo Bulegon , Helfer Ana Paula , Krummenauer Eliane Carlosso , Renner Jane Dagmar Pollo , Carneiro Marcelo , Menezes Rochele Mosmann
Published: October 2024

Antimicrobianos são uma das classes de medicamentos mais prescritas em ambientes hospitalares, gerando altos custos de saúde, além de serem corresponsáveis pela resistência bacteriana. Este estudo teve como objetivo avaliar os impactos clínicos e econômicos diretos do Antimicrobial Stewardship Program em um hospital escola do interior do Rio Grande do Sul, Brasil. Métodos: Os antimicrobianos foram analisados conforme sua indicação, dose, duração do tratamento e via de administração. Sempre que necessário, intervenções com o médico prescritor ou equipe de enfermagem foram realizadas para otimização da terapia. Resultados: Um total de 1288 prescrições médicas passaram por análise farmacêutica. Foram realizadas 71 intervenções, incluindo intervenções com equipe médica e equipe de enfermagem, com taxas de aceitação de 75% e 100%, respectivamente. A economia alcançada durante o período de estudo (5 meses) foi de R$ 5.921,84. A grande maioria dos pacientes do grupo intervenção apresentaram desfecho positivo, evoluindo para alta (86,96%). Houve redução de 18,3% na Dose Definida Diária de ciprofloxacino intravenoso entre os meses de maio a julho. Conclusão: Este estudo destaca os aspectos positivos da utilização do Antimicrobial Stewardship Program como uma estratégia efetiva em reduzir custos e consumo de antimicrobianos sem impactos negativos no desfecho clínico dos pacientes.
Influência de um programa de exercícios domiciliares por telemonitoramento na velocidade da marcha e risco de quedas em hemiparéticos crônicos
Authors: Bueno Lucas Mateus Campos , Furuta Débora Toshimi , Santos Danilo Castriani , Oliveira Dyenifer Fernandes de , Otaguiri Paula Yukari , Tacao Guilherme Yassuyuki , Leoci Isabella Cristina , Carvalho Augusto Cesinando de
Published: October 2024

Resumo: O objetivo do estudo foi analisar a influência de um programa de exercícios domiciliares globais acompanhados por telemonitoramento na velocidade da marcha e no risco de quedas de pacientes com hemiparesia pós AVC, assim como, verificar possível correlação entre as variáveis de velocidade da marcha e o risco de quedas. Métodos: foi realizada uma pesquisa de caráter transversal com amostra de conveniência e análise descritiva e inferencial. A coleta de dados constitui-se a partir da aplicação dos questionários de caracterização sociodemográfica, Teste de Caminhada de 10 metros (TC10), Dynamic Gait Index (DGI) e a Plataforma de Baropodometria eletrônica. Resultados: Após a intervenção, foi possível observar um aumento no risco de quedas e uma diminuição na velocidade da marcha, como também, as variáveis avaliadas demonstraram uma correlação significativa entre si. Considerações finais: O programa de exercícios domiciliares acompanhado por telemonitoramento não apresentou efeito significativo na velocidade da marcha, no entanto, demonstrou possuir relação com o aumento do risco de quedas, cabendo ressaltar que a velocidade da marcha também demonstrou associação com o risco de quedas.
Autocuidado dos adolescentes com diabetes mellitus tipo 1 da Atenção Primária à Saúde
Authors: Macedo Evelin Reis , Silva Nádia Cristina Rodrigues da , Lago Karen dos Santos , Barbone Flávia Gonçalves Isabel , Cecílio Samyra Giarola , Cortez Andreza de Oliveira Henrique , Souza Débora Aparecida Silva
Published: October 2024

Introdução: o Diabetes Mellitus tipo 1 é comumente diagnosticado em crianças e adolescentes podendo apresentar complicações pela dificuldade diária de realizar práticas de autocuidado. Objetivo: conhecer a adesão das práticas de autocuidado realizadas por adolescentes com Diabetes Mellitus tipo 1 da Atenção Primária à Saúde de um município de Minas Gerais. Materiais e Método: estudo descritivo, analítico e transversal realizado com 26 adolescentes com diabetes mellitus tipo 1 em acompanhamento exclusivo na Atenção Primária à Saúde. Foram avaliadas as variáveis sociodemográficas, tempo de diagnóstico do diabetes, frequência da insulinoterapia, dificuldades de aplicação, responsável pela administração da insulina e autocuidado. Resultados: entre os participantes 12(46,15%) convivem com a doença há mais de cinco anos, a frequência de aplicação de insulina foi superior a três vezes ao dia em 11 (42,31%) e, 22 (84,62%) afirmaram serem os responsáveis pela aplicação, 24 (92,31%) negaram dificuldades com a técnica de administração e 16 (61,54%) afirmaram esquecimento com a aplicação. Quanto ao autocuidado, 15 (57,70%) adolescentes obtiveram escore menor de cinco pontos, indicando baixa adesão às práticas de autocuidado. Ao associar essa variável com o tempo de diagnóstico verificou-se que adolescentes com diabetes há mais de cinco anos possuem boa adesão (p=0,154). Conclusões: adolescentes possuem baixa adesão às práticas de autocuidado mas a medida que aumenta o tempo de diagnóstico, essa situação se inverte melhorando a adesão.
Content validity and internal consistency of an algorithm for cleansing wounds with granulation and necrotic tissues
Authors: Salome Geraldo Magela
Published: October 2024

Protocols in the form of algorithms allow the nurse team to make rapid decisions, lowering risks and improving outcome. There is a lack of readily available protocols for the use of correct techniques and products for wound cleansing. Objective. To assess the content validity and internal consistency of an algorithm for cleansing wounds with granulation and necrotic tissues. Methods. A literature search was conducted to identify relevant studies for the construction of the algorithm, using the following descriptors: “wounds and injuries”, “algorithms”, “cleansing agents”, “therapeutic irrigation”, and “debridement” in both English, Brazilian Portuguese and Spanish. The development of the algorithm involved the planning and production of content and definition of topics. The algorithm was assessed for content validity by 20 judges and for internal consistency by 31 judges. Results. An algorithm was developed to help health professionals in the cleansing of wounds. It describes wound cleansing techniques and provides recommendations for therapeutic interventions and primary dressings, based on the type of wound tissue. The judges assessing the content validity of the algorithm reached consensus in two rounds of consultation. The algorithm showed good internal consistency with a Cronbach’s alpha of 0.851. Conclusions. The validated algorithms will provide health professionals with relevant information to choose appropriate wound cleansing techniques and therapeutic procedures according to the type of wound tissue.
Accelerating Second Language Acquisition for Effective Strategies for Student
Authors: Firdaus Tiya Anisyah
Published: October 2024

This study examines the importance of expediting the acquisition of a second language (SLA), with a particular emphasis on techniques and approaches that improve the effectiveness of language learning. Based on ten participants—English teachers and students—in structured interviews, the study investigates the advantages, phases, and practical approaches for second language acquisition. It has been demonstrated that expediting SLA enhances communication abilities, scholastic achievement, and cognitive growth, providing useful benefits in professions like tourism. In order to improve the acquisition process, the study emphasizes the value of immersion, cognitive and metacognitive techniques, and using the first language. By being aware of these components, teachers can better adapt their instruction and help students become proficient more quickly. The results imply that in order to maximize language learning outcomes, a comprehensive strategy that takes into account individual learner characteristics and stages of acquisition is necessary and empowering students to actively participate in the global society.
El impacto de la organización institucional en la eficiencia hospitalaria del servicio de emergencia en un hospital de segundo nivel
Authors: Daniela Roxana Heredia Bucay  , Diana Mishel Salazar Altamirano
Published: October 2024

Esta investigación explora la influencia de la organización institucional en la eficacia de los servicios de emergencia en los hospitales de segundo nivel en Riobamba, Ecuador, haciendo hincapié en la premisa de que un marco organizacional eficaz es esencial para mejorar la capacidad de respuesta en las emergencias médicas. Los objetivos del estudio abarcaron evaluar el impacto de la estructura organizacional en la eficiencia de la prestación de servicios de emergencia e identificar las áreas de mejora para elevar la calidad del servicio. Empleando una metodología cuantitativa, se formuló un estudio no experimental, transversal y descriptivo-correlacional. Los datos se recopilaron mediante un cuestionario organizado en cinco dimensiones, que se administró a 384 usuarios de los servicios de emergencia, utilizando métodos de muestreo no probabilístico. Los principales hallazgos indicaron una correlación notable entre una organización institucional bien estructurada y una mayor eficiencia de los servicios de emergencia, lo que subraya la importancia de una organización y funciones claramente definidas. Los resultados implican que los hospitales pueden mejorar notablemente su eficacia operativa y la calidad de sus servicios al instituir una gestión organizacional sólida, que facilite la coordinación eficaz entre los distintos departamentos y optimice la utilización de los recursos.
Analisis Pengaruh Penghargaan Karyawan Teladan dan Pemberian Insentif terhadap Etos Kerja di Lingkungan RSGM Ladokgi TNI AL
Authors: Prasetianto Wisnu , Kosasih Kosasih , Yuliaty Farida
Published: October 2024

Etos kerja yang baik ialah pemacu dalam peningkatan keefektifan produktivitas dan efisiensi kinerja di sebuah institusi, termasuk di Rumah Sakit Gigi dan Mulut (RSGM) Ladokgi TNI AL. Di lingkungan kerja yang penuh tekanan, seperti rumah sakit militer, upaya untuk meningkatkan motivasi dan dedikasi karyawan sangat diperlukan. Tujuan penelitian ini adalah untuk menganalisis pengaruh penghargaan karyawan teladan serta pemberian insentif berpengaruh pada etos kerja karyawan di lingkungan tersebut. Kuantitatif digunakan pada penelitian ii dengan pendekatan deskriptif. Pengumpulan data menggunakan Teknik survei dan kuesioner. Selanjutnya data dianalisis menggunakan aplikasi SPSS. Hasil penelitian didapatkan bahwa penghargaan karyawan teladan dan pemberian insentif baik secara parsial maupun simultan berpengaruh terhadap etos kerja di lingkungan RSGM Ladokgi TNI AL. Oleh karena itu, pentingnya memberi penghargaan dan insentif sebagai strategi dalam meningkatkan etos kerja karyawan, sehingga dapat meningkatkan kinerja dan produktivitas rumah sakit. Institusi diharapkan terus menerapkan strategi ini untuk menciptakan tenaga kerja yang lebih termotivasi, efisien, dan berdedikasi.
Wirausaha di Kantor Akuntan Publik
Authors: Tua Maruli , Nuraeni Rani , Hastuti Indra
Published: October 2024

Penelitian ini bertujuan untuk menganalisis penerapan kewirausahaan di Kantor Akuntan Publik (KAP) dengan fokus pada perencanaan, pengorganisasian, pelaksanaan, dan pengendalian (Planning, Organizing, Actuating, Controlling – POAC), serta bagaimana profit motive memengaruhi pengambilan keputusan strategis. Penelitian menggunakan metode kualitatif dengan pendekatan deskriptif, di mana data dikumpulkan melalui wawancara mendalam dan observasi langsung terhadap proses bisnis di KAP. Hasil penelitian menunjukkan bahwa KAP yang memiliki perencanaan strategis yang baik, pengorganisasian sumber daya yang efisien, pelaksanaan inovasi layanan, dan pengendalian berkala mampu mencapai profit yang lebih tinggi. Profit motive terbukti menjadi faktor kunci dalam menentukan prioritas layanan dan alokasi sumber daya di KAP. Selain itu, inovasi dalam layanan, seperti digitalisasi dan peningkatan kualitas audit, berkontribusi pada pertumbuhan jumlah klien dan peningkatan retensi klien. Pengendalian yang baik, melalui evaluasi kinerja dan penilaian berkala, juga mendukung pencapaian target profit KAP. Secara keseluruhan, penelitian ini menegaskan bahwa kewirausahaan yang proaktif, inovatif, dan berorientasi pada profit merupakan kunci keberhasilan dalam meningkatkan daya saing KAP di industri akuntansi.
Pengaruh Lingkungan Kerja terhadap Kinerja Karyawan Hotel Fairfield By Marriott Bali South Kuta
Authors: Prayoga Adi Gunawan Putu Diva , Sukana Sabudi I Nyoman , H. Sihombing3 Irene Hanna
Published: October 2024

Lingkungan kerja yang kondusif merupakan faktor penting yang dapat mempengaruhi kinerja karyawan dalam sebuah organisasi, termasuk di industri perhotelan seperti Hotel Fairfield By Marriott Bali South Kuta. Penelitian ini bertujuan untuk menganalisis pengaruh lingkungan kerja terhadap kinerja karyawan di Hotel Fairfield by Marriott Bali South Kuta. Penelitian ini melibatkan 47 responden, yaitu seluruh karyawan hotel tersebut, dengan teknik sampling jenuh. Data dikumpulkan melalui kuesioner menggunakan skala likert 5 poin yang mencakup 27 pernyataan. Teknik analisis yang digunakan adalah regresi linier sederhana, uji-t, dan koefisien determinasi, yang diolah menggunakan program SPSS versi 26. Hasil analisis regresi menunjukkan bahwa lingkungan kerja memiliki pengaruh positif dan signifikan terhadap kinerja karyawan, di mana variabel lingkungan kerja mampu menjelaskan 70% variabilitas kinerja karyawan. Dengan demikian, semakin baik lingkungan kerja yang diciptakan, semakin meningkat pula kinerja karyawan. Penelitian ini diharapkan dapat menjadi acuan bagi manajemen hotel dalam menciptakan lingkungan kerja yang optimal guna meningkatkan kinerja karyawan.
Essai de production de l’acide polylactique (PLA) à partir de la mélasse de canne à sucre en vue d’élaborer les emballages bioplastiques
Authors:   Université de Kinshasa, Faculté des Sciences & Technologies, Département de Chimie et Industries, Kinshasa, République Démocratique du Congo, Muabu Kayeye Arsène
Published: October 2024

This work involves the development of a bioplastic replacement for non-degradable plastics in packaging. The objective was to produce polylactic acid (PLA) from sugarcane molasses with locally produced Lactobacillus delbrucckii. Polylactic acid is a biosourced and biodegradable polymer, it can be plasticized. The lactic acid bacteria necessary for the synthesis were isolated and identified as Lactobacillus delbrucckii following their characteristics. The sugar cane molasses used came from the KwiluNgongo sugar mill with a concentration of 410.9 g/L of fermentable sugar. 1L of diluted molasses was fermented with the inoculum of Lactobacillus delbrucckii in a ratio of 10/1. This fermentation produced 98 g of lactic acid after purification (63.6%). Lactic acid was polymerized to polylactic acid (92%), via lactide (78.46%), by ring opening. Lactobacillus delbrucckii colonies were characterized by Gram staining, catalase test, morphology, appearance of the colony and mode of fermentation. The Brix degree, pH, density and fermentable sugar level were determined on the molasses. The polymer obtained had a brittle behavior when heated and its mixture with 5% glycerol gelled more weakly than in the presence of 10% glycerol.
The Impact of Public Health on Disease Prevention
Authors:   Faculty of Medicine Kampala International University Uganda, Nyiramana Mukamurera P.
Published: October 2024

Public health plays an important role in preventing diseases by supporting measures that prioritise the well-being of entire populations over individuals. This study investigates the history of public health, the approaches used in illness prevention, and the difficulties encountered in executing these tactics. Public health strategies, such as immunisation programs and lifestyle modifications, are critical in combating communicable and non-communicable diseases. Case studies like the Diabetes Prevention Program and REACH U.S. demonstrate the effectiveness of public health efforts. The paper also discusses current difficulties, such as limited resources, misinformation, and increasing dangers, as well as possible future strategies for improving public health systems through innovation, research, and community participation. Keywords: Public Health, Disease Prevention, Vaccination, Health Promotion, Preventive Healthcare.
Epidemiology of Anaemia in Children under Five in Uganda: Current Trends, Challenges, and Strategic Approaches
Authors:   School of Natural and Applied Sciences Kampala International University Uganda, Kibibi Wairimu H.
Published: October 2024

Anaemia in children under five years old is a significant public health issue in Uganda, affecting over half of the vulnerable population and posing challenges to their health and development. The issue is influenced by nutritional deficiencies, infectious diseases, socioeconomic factors, and limited healthcare access. Clinical manifestations include pallor, fatigue, and developmental delays, and early detection is difficult due to non-specific symptoms, resource constraints, and cultural practices. The impact of anaemia on child health and development is profound, affecting physical growth, cognitive and motor skills, and overall well-being. Nutritional interventions, such as iron supplementation, fortified foods, and dietary education, are crucial for managing anaemia. Effective healthcare responses and policies, including routine screenings, treatment programs, and community outreach, are also necessary. Preventive measures and treatment programs are crucial for combating malaria and other infectious diseases. Community-based approaches, including training health workers and implementing grassroots education programs, are essential for improving anaemia management. Addressing gender dynamics and socioeconomic determinants is vital for reducing anaemia rates. Monitoring and evaluation frameworks are essential for assessing the effectiveness of anaemia control programs and guiding future efforts. In conclusion, a coordinated approach integrating nutritional, healthcare, environmental, and socioeconomic strategies is necessary to combat anaemia in Uganda. Through continued efforts and collaboration, the burden of anaemia can be mitigated, leading to improved health outcomes for children under five. Keywords: Anaemia, Children, Uganda, Current Trends, Challenges, Strategic Approaches
OERinfo-Erklärvideos (5/5): „Open Educational Resources, Urheberrecht und KI“ mit Till Kreutzer
Authors: Fischer Georg
Published: October 2024

OER und KI – wie geht das zusammen? Till Kreutzer im OERinfo-Erklärvideo zu den Fragen, was beim Einsatz von Künstlicher Intelligenz zu beachten ist und wie sich hybride Kreationen als Open Educational Resources nutzen lassen. Paul Klimpel und Till Kreutzer arbeiten als Anwälte bei iRights.Law und engagieren sich als Autoren bei iRights.info.
Special evidentiary measures: A comparative study of Serbia and Slovakia
Authors: Ivanović Zvonimir , Vaško Adrian
Published: October 2024

There is a trend across European countries to incorporate various successful measures into national legislation, and the two cases presented in this article are no exception. However, these implementations vary due to the legal cultures and attitudes of legislatures in each country. Naturally, the Republic of Serbia faces specific demands related to its obligations, which are strict, pertaining to accession to the EU, with the negotiation process imposing numerous conditions on legislative efforts and outcomes. This article examines special evidentiary (investigative) measures, their status within the legal systems of both countries, and the variations between them. The originality of this work stems from the relevance of the legal, practical, and evidentiary solutions provided by both legislatures, as well as the trials conducted by European Community courts and practices based on Slovak results within the legal system of the European Community.
MIXOLAB® rheology of enzymatic flour and validation of baking performance
Authors:   “Viilor” Economic College, Viilor Str., no. 38, sector 5, Bucharest, Romania, Dinu Monica Gabriela , Pop Constantinescu Gabriela ,   “Stefan cel Mare” University of Suceava, Faculty of Food Engineering, Str. University no.13, Suceava, Romania
Published: October 2024

The purpose of this research is to justify the way in which flour is added to obtain a quality product, quality seen from the perspective of bakers. Because bakers want to have good and consistent flour, many tests are done in the mills for the addition of flour, tests that are correlated with baking samples. In this study, analyzes are based on the use of enzyme mixtures with influences on the rheology of the flours and the organoleptic properties of the bread resulting from the baking test. For a better image of the results, constant percentages of enzymes were used: xylanase, lipase and different percentages of alpha-amylase were used. This decision was based on the fact that there were periods when the falling index exceeded the value of 350 s. Xylanase and lipase were used in percentages of 5ppm. The percentage of alpha-amylase was in the range of 1-10 ppm. The flour added with enzymes was analyzed from a rheological point of view with the help of the Chopin Mixolab. Baking samples were made from the added flour, which were analyzed objectively, by laser scanning, using the Volscan device. By means of the Volscan device, the quality parameters of the bread were obtained, such as: volume, specific volume, density, maximum H/D ratio, and yield in flour. Based on the experimental data, correlations were made between the results obtained from the flour analysis and those from the bread analysis, with the aim of establishing an optimal profile of the flour from the point of view of the rheological characteristics, but which would lead to obtaining a product with parameters as better. The analysis of the experimental data allowed the realization and validation of an optimal profile of the flour, for the situation where the falling index is greater than 350 s. The analysis of the experimental data allowed the creation of an optimal profile of the flour, for the situation where the falling number is greater than 350 s.
Functional foods and bakery products: a review
Authors:   Faculty of Food Engineering, University of Life Sciences “King Mihai I” from Timisoara, Dossa Sylvestre , Riviș Adrian ,   Faculty of Food Engineering, University of Life Sciences “King Mihai I” from Timisoara
Published: October 2024

The concept of functional foods is a highly topical one. Indeed, beyond their function of satisfying hunger, functional foods have health benefits for consumers. The aim of this study was not only to provide information on functional foods but also to review articles published over the last twenty years on functional bakery products. Firstly, this review looks at the history and concept of functional foods, their different types and the link between them and human health. secondly, some thirty articles were examined. From these articles, information on the nutrient intake and/or health benefits of functional foods was collected. It emerged that the formulation of functional bakery products is of interest to many authors. The product most often mentioned is the cookie, probably because it is loved by all, regardless of age, and because of its convenience. As far as nutritional intake is concerned, in most cases there is an improvement in the composition of total polyphenols, minerals, and fiber. As for the health benefits of these different products, we note a low glycemic index, which is a benefit for diabetics. Other products are gluten-free, which is recommended in cases of celiac disease. In addition to these benefits, there are products that, given their composition, have hypocholesterolemic effects, regulate heart rate and therefore blood pressure, are anti-diabetic, combat degenerative diseases, and many others. Functional bakery products are therefore of vital importance in today's world.
Enhancing Wheat Bread Nutrient Content with Orange Flesh Sweet Potato and Chickpea Flour
Authors:   Food Technology and Process Engineering, Haramaya Institute of Technology, Haramaya University, Dire Dawa, Ethiopia, Sharew Tewodros , Mengistu Deribe ,   Food Science and Nutrition, Food Engineering, Deber Zeit Agricultural Research Centre, Bishoftu, Ethiopia
Published: October 2024

Bread is crucial for food security in Ethiopia, tackling protein malnutrition and vitamin A deficiency. To reduce reliance on imported wheat, supplementing wheat flour with local raw materials is essential. Therefore, this study aims to investigates blending ratio of chickpea and OFSP flour with wheat at different baking temperatures to prepare nutritionally enhanced and high-quality bread. The experiment was conducted in a full factorial design with two factors: flour blending ratio (80:10:10, 70:15:15, 60:20:20, 50:20:30 for wheat, chickpea, and OFSP respectively, and a control of 100% wheat flour) and baking temperatures (180°C, 200°C, and 220°C). The study analyzed the proximate composition of flour and bread, including moisture, ash, protein, fat, fiber, carbohydrates, and β-carotene, while also evaluating the bread's physical and organoleptic properties. Data analysis was conducted using SAS software package version 9.4. The proximate composition of bread showed that substituting wheat with chickpea and orange-fleshed sweet potato increased moisture (28.84 to 35.79%), protein (10.85 to 14.59%), fat (0.85 to 2.05%), fiber (1.49 to 1.84%), ash (0.93 to 2.06%), and β-carotene (0 to 8.04 µg/g of bread). However, it decreased carbohydrate (57.66 to 51.81%) and energy content (281.64 to 257.10 Kcal/100g), due to wheat flour high source of carbohydrate and energy. On the contrary, bread loaf weight increased (123.28 to 131.29 g) due to the superior water absorption capacity of chickpea and OFSP flours compared to wheat. However, loaf volume (359.17 to 205.83 cm³) and specific volume (2.91 to 1.58 cm³/g) decreased due to reduced gluten content in wheat flour. As the proportion of chickpea and OFSP flour increased, sensory acceptability ratings on a 7-point scale decreased: color (6.19 to 2.77), texture (5.78 to 2.62), flavor (5.70 to 2.44), and overall acceptability (5.90 to 2.58) of the bread. In conclusion, blending wheat with chickpea and OFSP flour in bread formulations enhances nutritional quality, especially protein and beta-carotene. Utilizing locally underutilized raw materials is a viable alternative for the growing population.
A Comparison Between Spark Plasma Sintering (SPS) And Rapid Sinter Pressing (RSP) For Sintering Of W-Cu Composites At Low Temperature
Authors: Sauceda S. , Lascano S. , Arévalo C. , Montealegre I. , Pérez-Soriano E.M. , Pedrosa P. , Machuca A. , Chavez R. , Araya N.
Published: October 2024

Applications such as high-power contacts or nuclear fusion reactors frequently rely on W-Cu composites when demanding exceptional electrical and thermal conductivity under extreme conditions. Powder metallurgy serves to create this type of material with different melting points. However, there is a discussion in the literature about the most suitable powder metallurgy techniques. Spark Plasma Sintering (SPS) and Rapid Sintering Process (RSP) make it possible to produce materials within minutes and at lower temperatures on an industrial scale. This study undertakes a comparative analysis of two different sintering techniques at 600°C while varying the pressure and sintering time for W-Cu samples containing 25% and 75%wt. of W. Results show that it is possible to sinter composite W-Cu at 600°C. The material's density, hardness, and microstructure are significantly affected by sintering time. Furthermore, RSP tends to generate higher densities, hardness and Young's modulus.
Effect Of Powder Surface Oxides In Ensuring A Reproducible Homogenous Microstructure In Powder Processed Mg-0.6Ca Alloy
Authors: Nidadavolu Eshwara , Wolff Martin , Ebel Thomas , Willumeit-Römer Regine
Published: October 2024

Liquid phase sintered biodegradable Mg-0.6Ca alloy generally exhibits an isotropic microstructure with homogenously restricted grain size of 30 µm, even after long sintering durations of 60 h at 625 °C. Such sintered microstructures reveal the presence of numerous impurity oxide particles at the grain boundaries, which are evident also on the initial gas atomized powder surfaces. However, after a mechanical powder sieving treatment for 20 min, the surface SiO2 concentration dropped from initially 220 ppm to 85 ppm, resulting in heterogeneous grain coarsening after sintering for 18 h at 625°C. For the use of Mg-Ca materials as biodegradable implants, reproducibility of in vitro degradation results is a prerequisite, for which a homogenous grain structure is desired. However, the lowered oxide-pinning effect at certain grain boundaries created heterogeneous grain coarsening and this indicates the necessity for the careful handling of fine powders to ensure repeatability in degradation and mechanical properties.
Laser Powder Bed Fusion And Hot Isostatic Pressing Of Pure Molybdenum: Physical And Mechanical Properties At Elevated Temperatures
Authors: Leclercq Aurore , Mouret Thibault , Brailovski Vladimir
Published: October 2024

Molybdenum (Mo) is one of the target materials for laser powder bed fusion additive manufacturing processes. Using the following set of printing parameters: E=179 W; v=133 mm/s; h=60 µm and t=30 µm, crack-free Mo specimens were printed, subjected to hot isostatic pressing (1300°C & 150 MPa for 3 hours), and characterized in terms of their density, structure, and compression behavior at room and elevated temperatures. The results obtained with as-built specimens with a printed density of ~97% and an ultimate compression stress of 486, 242, 264 and 145 MPa at 20, 600, 800 and 1000°C respectively, are comparable to those shown by their counterparts produced by conventional powder metallurgy processes. The selected HIP conditions resulted in a ~1% increase in the part density, but simultaneous porosity evolution and grain coarsening led to a concurrent ~10% decrease in the room and elevated-temperature mechanical properties of printed parts.
Revolutionizing Adult Walker Mobility: A Contemporary Upgrade Approach
Authors: M Dhipa , B Mohanprasath , S Pradeep , S Kumaresan , R Villiam David
Published: October 2024

A walker is a device which makes easier to get around after surgery or fracture in your foot or leg. A walker allows to keep weight off users feet and legs. It encourages physical activity which helps to maintain muscle strength, balance, and coordination. Walker is one of the helpful device for old age people also. This work presents an innovative walker for adults designed to meet the changing needs of people with mobility impairments. The walker has state of the art features such as an adjustable glucose stand, a foldable seat and an advanced alert system, all connected together via micro and IFTTT tool. The adjustable glucose stand base offers users a unique solution for on the go health management, while the foldable seat adds versatility and comfort during use. The alert system integrated with IFTTT, activated by a simple push button, ensures timely help in emergency situations. This walker for adults represents a leap forward in healthcare innovation and demonstrates the possibilities of IoT and connectivity solutions. At the end, it is recommended to make improvements based on user. The featured points to the intersection of technology and healthcare, offering a promising tool to improve the daily lives of a diverse user base.
V2V Charging System in Electric Bike
Authors: Suresh Monica P , V Jegan , M Akash
Published: October 2024

This research investigates the application of a Vehicle to Vehicle (V2V) charging system for e-bikes, concentrating on the development and assessment of a Split Pi converter. In order to encourage the widespread use of electric bicycles as a sustainable form of transportation in urban areas, effective charging techniques are essential. An innovative and practical way to increase the range of electric bicycles is to allow them to charge one another while they are moving. This is made possible by the proposed V2V charging system. An essential part of the V2V system, the Split Pi converter is designed and analyzed in this research. The converter’s capacity to effectively transfer power between electric bicycles is proved through simulations and results from experiments. The research presented here tackles the issues related to the infrastructure for charging electric bicycles and adds to the continuing efforts to create sustainable transportation alternatives. The results in this study highlight the viability of vehicle to vehicle (V2V) charging systems for electric bicycles, as well as how important they are for encouraging eco friendly urban mobility and having the ability to increase range and decrease the need for a large infrastructure for charging. In order to integrate the V2V charging technology with current electric bicycle systems and put it into practice, more research is needed to develop and improve it.
TÜRKLERDE HAKİMİYET
Authors: AKKAŞ Hasan Hüseyin
Published: October 2024

Türklerde hakimiyet kavramının anlatıldığı eser, hakimiyetin Türklere özgü niteliğini açıklamaktadır. Töre, kut, karizma, müşfik baba, kurultay ve divan Türklerde hakimiyetin temel unsurlarıdır. Türklerde hakimiyet telakkisi, paylaşımcı medeniyet tasarımı olup eserde; sözün senet, kutun ateşten gömlek ve karizmanın müşfik baba rol modeli açıklanmaktadır. Türk hakimiyet düşüncesinde hükümranlığın temeli karizmaya, adil yönetime, hakkaniyete ve liyakate dayanmaktadır.
Anti-Racism Law and its Limits
Authors: Ncube Daniel-Thabani
Published: October 2024

By drawing upon insights of sociolegal thought, feminism and the US social context, this contribution argues that anti-racism law’s apparent ineffectiveness stems from its reliance on the inherently vague concept of “race”.
Graph Attention Networks with Local and Global Attention Mechanisms for Learning Single-Shot Omics Data Representations
Authors: Fengfeng Zhou , Jinkai Zhang , Valentine Lucrecia
Published: October 2024

Aiming at the high-dimensional " size " problem in biological omics data where the number of genes is much larger than the number of samples pn, a graph attention network GATOr with local and global attention mechanisms is proposed. The model first calculates the correlation between features using the Pearson correlation coefficient on omics data and constructs a single-sample network of omics data. Then, a graph attention network combining local and global attention mechanisms is proposed to learn graph-based omics feature representation from the single-sample network, thereby converting the high-dimensional characteristics of omics data into low-dimensional representation. Experimental results show that GATOr has achieved better performance in classification task accuracy and other indicators than other traditional classification algorithms.
Grey Bayesian network model for electromagnetic pulse vulnerability assessment of engine system
Authors: Li Chuanjun , Zhao Yu , Sun Tiegang , Sun Xiaoying
Published: October 2024

Firstly, in view of the uncertainty of electromagnetic pulse vulnerability assessment of engine system caused by limited experimental data and incomplete information, a grey Bayesian network model is proposed by introducing interval grey numbers in grey system theory to characterize the uncertainty of sensitivity threshold and fault logic relationship of engine system components, so as to improve the processing ability of Bayesian network for uncertain information. Secondly, taking broadband high-power microwave as an example, the interval grey number failure probability of engine system and the posterior failure probability of sensor interval grey number are calculated. The former represents the survivability of the engine system as a whole under strong electromagnetic pulse, and the latter reflects the vulnerability order of each sensor under the condition of engine system failure. The evaluation conclusion can provide a reference for the design of vehicle electromagnetic protection.
Improved fuzzy energy management strategy for fuel cell vehicles based on IPIO
Authors: Xiao Chun , Yi Zichun , Zhou Bingyin , Zhang Shaorui
Published: October 2024

In the energy management of fuel cell vehicles (FCEV), the traditional fuzzy logic strategy has the problems of strong subjectivity and average vehicle economy. This paper proposes a composite fuzzy energy management strategy with the goal of improving the life of the auxiliary energy source power battery, using an improved pigeon swarm optimization algorithm (IPIO) to update the fuzzy membership function, while ensuring that the power battery works in a suitable range for a long time and reducing equivalent hydrogen consumption quantity. This paper conducts secondary development on the existing ADVISOR model to establish a simulation model of the FCEV hybrid system, and conducts simulation experiments under NEDC and CLTC-P operating conditions. The results show that IPIO's improved energy management strategy can charge more than twice as fast as the power following strategy when the initial SOC is low, and can reach the appropriate SOC range faster, which can extend the life of the power battery; when the initial SOC is high, the charging speed is more than twice that of the power following strategy. In this case, the equivalent hydrogen consumption of IPIO's improved composite fuzzy energy management strategy was reduced by 9.09% and 9.09% respectively in the two working conditions compared with the before improvement 11.8%, which significantly reduced the hydrogen consumption and improved the economy of hydrogen fuel cell vehicles.
Multi-group sparrow search algorithm based on K-means clustering
Authors: Pierre Ahkeim , Zio Enrico , Brown Jessica , Petit Louis
Published: October 2024

In order to improve the defects of the Sparrow Search Algorithm (SSA) in single-species search, which causes redundancy in its speed of collection and easily ignores high-quality solutions and falls into local optimality, a K-means Multigroup Sparrow Search Algorithm (KSSA) based on K-means clustering was proposed. Firstly, the multi-population mechanism is introduced into SSA to weaken the collection ability of a single population and reduce the probability of falling into the local optimum. Secondly, the K-means algorithm is used to divide the sub-populations to increase the differences between the sub-populations, and at the same time, the individuals in the sub-populations focus on searching in a small range, thereby improving the efficiency of the initial search. Then, the weighted centroid communication strategy is used to improve the quality of communication between populations, reduce the interference of the own population, and reduce the risk of all sub-populations falling into the local optimum due to a sub-population falling into the local optimum. Finally, dynamic reverse learning is introduced into the vigilant to enhance its anti-predator behavior and improve the defects of slower collection speed and insufficient collection accuracy caused by the increase in the number of sub-populations. The test function simulation experiment shows that KSSA has better optimization performance than SSA and other algorithms.
Driver behavior recognition based on dual-branch and deformable convolutional network method
Authors: Hongyu Hu , Zhengguang Zhang , You Qu , Muyu Cai
Published: October 2024

Aiming at the task of driver behavior recognition in the car cockpit, this paper proposes a recognition method based on a dual-branch neural network. The main branch of the network model uses ResNet50 as the backbone network for feature extraction, and uses deformable convolution to adapt the model to the shape and position changes of the driver in the image. The auxiliary branch assists in updating the parameters of the backbone network during the gradient backpropagation process, so that the backbone network can better extract features that are conducive to driver behavior recognition, thereby improving the recognition performance of the model. The ablation experiment and comparative experiment results of the network model on the State Farm public dataset show that the recognition accuracy of the proposed network model can reach 96.23%, and the recognition effect is better for easily confused behavior categories. The research results are of great significance for understanding driver behavior in the car cockpit and ensuring driving safety.
Low-altitude UAV obstacle detection method based on position constraint and attention
Authors: Youjun Tang , Cunxiao Miao , He Zhang , Yufeng LI , Wen Ye
Published: October 2024

UAVs are widely used in low-altitude fields for tasks such as power inspection, search and rescue, and reconnaissance. Pre-detection of obstacles during flight is a safety guarantee for completing the given tasks. In order to meet the requirements of obstacle detection accuracy and position regression accuracy when UAVs are flying at low altitudes, a low-altitude UAV obstacle detection method based on position constraint and attention improvement is proposed. Firstly, the shortcomings of the position regression loss function are analyzed, and based on this, a loss function of separating scale loss and integrating direction constraint is proposed to optimize the regression process; secondly, the attention mechanism CBAM is improved, and a dual attention mechanism is proposed to strengthen the feature suppression interference and improve the detection performance. The experimental results show that the improved algorithm has improved mAP 2.28%and mAP@0.5:0.95 2.7%, and has shown better low-altitude obstacle detection performance in both detection accuracy and position regression accuracy.
Dynamic Modeling of Angular Contact Ball Bearing with Local Defects under EHL Considering Impact Force
Authors: Iyengar Garud , Mitchell Sarah , Foster David , Clark Jennifer
Published: October 2024

In order to analyze the operating status of angular contact ball bearings(ACBBs) with local defects in more detail, a dynamic model of ACBB with local defects considering impact force under elastohydrodynamic lubrication conditions is proposed. Firstly, an elastohydrodynamic lubrication model for defective bearings considering spin is established, the film thickness and film stiffness of the defective bearings are calculated, and then time-varying displacement excitation model and time-varying stiffness model for local defects in angular contact ball bearings is presented. Based on this, an instantaneous impact force function related to defect size and bearing speed is established. Secondly, based on Hertz contact theory and impact force function, a dynamic calculation method for ACBBs with local defects on the outer ring is proposed. Finally, the vibration characteristics of ball bearings with faults are investigated, and the influence of different parameters on the dynamic response of the bearings is analyzed. The calculation results show that under lubrication conditions, the impact force on the vibration of the bearing is significantly weakened. With the increase of defect size and load, the frequency of bearing fault characteristics remain unchanged, but its amplitude increases. As the bearing speed increases, the characteristic frequency and amplitude of bearing faults increase.
Effect of plasma excitation on aerodynamic characteristics of airfoil under Martian conditions
Authors: Hongkong Yang , Yongxin Gao , Zhongming Wang , Yiwen Li , Cheng Yao
Published: October 2024

Due to the low density and pressure of the Martian atmosphere, the aerodynamic performance of the airfoil of the Mars UAV needs to be further improved. Plasma excitation active flow control technology is used to improve the lift of the airfoil and reduce the drag of the airfoil under Martian conditions. The effects of the action position, excitation power and incoming flow angle of attack on the lift and drag of the airfoil are studied under the low Reynolds number conditions on Mars. The results show that plasma excitation increases lift in the trailing edge area of the lower surface, with a maximum lift increase rate 37%; reduces drag in the leading edge area of the lower surface, with a maximum drag reduction rate 8%; the greater the excitation power and the smaller the incoming flow angle of attack, the more obvious the improvement of the airfoil lift-to-drag ratio. Plasma excitation induces pressure waves, forming a pressurization zone and a decompression zone upstream and downstream of the excitation, respectively, resulting in the formation of a pressurization surface and a decompression surface on the airfoil surface. When the excitation position is close to the trailing edge, the pressurization surface expands, and the pressure difference between the upper and lower surfaces of the airfoil increases, thereby achieving lift increase; when the excitation position is close to the leading edge, the decompression surface expands, and the pressure difference drag of the airfoil decreases, thereby achieving drag reduction.