bluuebunny/crossref_metadata_2025 huggingface dataset:
Modeling, Development, and Testing of Fluidic Flexible Matrix Composite Blade Dampers
Authors:   The Pennsylvania State University, Krott Matthew , Smith Edward , Palacios Jose , Rahn Christopher
Published: August 2024

Currently existing lead-lag dampers are complex and maintenance-intensive parts of the rotor hub, and they are ineffective solutions for stiff-inplane rotors which experience very small deformation at the blade root. This paper introduces a new class of rotor blade dampers that use Fluidic Flexible Matrix Composite (F2MC) tubes connected to fluidic circuits. Models are developed that couple the blade, F2MC tube, and fluidic circuit dynamics in order to assess the performance of the proposed solutions. In this paper, two different devices are proposed for augmenting the damping of hingeless and articulated rotors. The first device is a compact F2MC damped vibration absorber intended for stiff-inplane rotor applications. Simulation results predict that an F2MC absorber placed at the root of a representative stiff-inplane hingeless rotor blade can increase the blade damping ratio from 2% to over 6%. The second device provides lag damping in an articulated rotor blade by harnessing the blade lag motion to strain an F2MC tube that pumps fluid through an orifice into an accumulator. Damping ratios as high as 25% critical damping are predicted for a representative articulated blade, although the F2MC damper effectiveness varies greatly depending on the blade operating lag angle. As a precursor to future rotor testing, a prototype articulated blade F2MC damper is built and tested on a 4.85-foot radius rotor blade. Using this device, blade damping ratios of up to 14.3% are achieved on benchtop experiments which include simulated centrifugal loading.
UH-60A Rotor Structural Loads Analysis with Fixed-System Structural Dynamics Modeling
Authors:   U.S. Army Aviation Development Directorate, Yeo Hyeonsoo
Published: August 2024

NASA/Army UH-60A Airloads Program flight test and full-scale UH-60A Airloads wind tunnel test data are investigated in order to better understand and predict the chord bending moments, one of the unresolved issues in the UH-60A rotor loads prediction. Effects of the lag damper model are examined with the coupled Helios/RCAS by calculating lag damper loads using a nonlinear lag damper model or by applyingmeasured lag damper loads as prescribed external loads. RCAS alone analysis is also performed by prescribing measured airloads from the tests to help identify whether sources of inaccuracies in the structural loads prediction originate from deficiencies in aerodynamics or structural dynamics. Both lag damper loads and airloads are important for the accurate prediction of chord bending moments. The effects of drivetrain dynamics on the chord bending moment for the flight test and the effects of hub impedance using test stand NASTRAN model on the chord bending moment for the wind tunnel test are also investigated. In general, the effects of drivetrain dynamics are small. There is a slight improvement for the 4/rev and 5/rev harmonic magnitude correlation. The effects of hub impedance improve the correlation of both 3/rev and 4/rev harmonic components.
Nonlinear Analysis of Composite Beams with Structural Damping
Authors:   Georgia Institute of Technology, Gupta Mohit , Hodges Dewey
Published: August 2024

In rotor blades and other structural components, many factors can lead to structural damping. It is important to consider its effect on the dynamic behavior of beams. The work presented herein goes through a detailed literature review on the models and techniques used by past researchers to include damping. The authors use a state-of-the-art dimensional reduction technique known as the Variational Asymptotic Method (VAM). VAM works by splitting the 3-D beam analysis into 2-D cross-sectional and 1-D beam analyses, yielding asymptotically exact expressions for the variables of the original 3-D problem. Damping is introduced by incorporating a Kelvin-Voigt model into the existing mixed formulation of the Geometrically Exact Beam Theory (GEBT) analysis. The developed methodology is verified by comparison with a widely used finite element analysis. Capabilities of commercially available finite element codes are described, compared and contrasted with the proposed methodology.
Analysis Of UH-60 L/M Black Hawk Fleet Usage In Support Of A Partial Usage Spectrum Update
Authors:   Sikorsky a Lockheed Martin Co., J. Raymond ,   U.S. Army, Finckenor Jeff , Kloda Jared , Davis Mark , Lefevre Brian , Chandler Vencore; , Baker Terry
Published: August 2024

Structural usage and loads monitoring can enhance safety, by identifying unusual usage patterns by individual aircraft or sub-fleets (e.g. operators, missions, or locations), and provide benefit to operators by enabling extended retirement times of life-limited components. While flight regime recognition (RR) algorithms have been demonstrated and partially validated, the use of existing onboard generic RR software provided in legacy Health and Usage Monitoring Systems (HUMS) remains a challenge for achieving airworthiness approval of retirement time extensions using archived fleet data in compliance with existing guidance, such as the U.S. Army ADS-79E Handbook for Condition-Based Maintenance. The U.S. Army and Sikorsky Aircraft, a Lockheed Martin Company, conducted a joint Fatigue Life Management (FLM) project to configure, validate, and apply processes and methods for extending the retirement times of six high-value components for the Army's Black Hawk helicopter fleet, which is equipped with a state-of-the-art HUMS, known as the Integrated Vehicle Health Management System (IVHMS). A RR post-processing process for addressing key technical challenges associated with the use of legacy onboard RR software was configured and verified against existing UH-60 flight test data. These post-processing methods were then applied to a two year population of UH-60 fleet data to calculate usage statistics for individual aircraft within several sub-fleet populations associated with either different global deployment locations and/or missions. The fleet statistics were then used by the Army Aviation Engineering Directorate (AED) to establish a conservative update to the existing usage spectrum, which was applied by Sikorsky to calculate updated retirement times. The focus of this paper is on the successful configuration and verification of RR software used in compliance with ADS-79E to establish UH-60 A/L/M IVHMS fleet usage statistics. A companion paper, also published within proceedings of the AHS 74th Annual Forum, provides details on using the fleet statistics to define an updated UH-60 usage spectrum.
Design Development of Lightweight Thermoplastic Composite Cargo Floor for Helicopter Application
Authors:   SURVICE Engineering, Luzetsky Harry ,   Automated Dynamics Part of Trelleborg, Michasiow John
Published: August 2024

The ability to construct a composite, semimonocoque, damage-resistant, cargo floor for a rotary wing application using an IM7 graphite/polyetheretherketone (PEEK) composite with in-situ tape-placement fabrication technology has been demonstrated. Through an evolutionary process, a damage-tolerant thermoplastic composite cargo floor was designed according to realistic requirements, and subelement representative structures were developed to verify the design viability and approach. The fabricated and tested structural composite floor subelements demonstrated the feasibility of the technology, illustrated the ability to customize the design to meet unique cargo floor properties (e.g., cargo-loading features), and validated the maturity of the approach and fabrication technology for rotary-wing applications.
Additive Manufacturing of Titanium Alloys
Authors:   Polskie Zakłady Lotnicze - PZL Mielec, Wojtuszewski Radoslaw , Banas Aleksander , Oliwa Mateusz
Published: August 2024

The most common additive manufacturing technologies are Electron Beam Melting and Selective Laser Sintering. It can be used with various materials including Titanium. Titanium alloys are also widely used in aircraft production. It is strong and stiff material however its processing using ordinary technology is generally complicated, time consuming and expensive. Oppositely for additive manufacturing, titanium is one of the most convenient to process. This opens new possibilities in aircraft production. This paper compares EBM and SLM technologies with the use of two titanium alloys (6-4 and 5-5-5-1). Titanium 6-4 is popular both in AM and conventional technics of production however its compression to 5-5-5-1 (which is not common in AM industry) broaden the range of AM available materials in terms of aircraft manufacturing. First part of the paper covers fundamental knowledge about AM industry, technology basics and general description, second covers list of materials which can be used in additive production, property comparison, potential application and printing possibilities. The latter part of the paper shows a few examples of demonstration part manufactured using AM technologies with general description.
Orthogonal Vortex­Rotor Interference: Rotor Trim and Blade Flapping
Authors:   German Aerospace Center (DLR), G. Berend
Published: August 2024

Rotors of vertical take-off and landing vehicles (main rotor, tail rotor, and propeller) are often subjected to interaction with vortices from other lifting devices. Interactions with vortices whose axis are essentially parallel to the rotor plane of rotation are widely investigated and understood, especially with respect to blade-vortex interaction (BVI) phenomena. Interactions of rotor blades with vortices oriented normal to the rotor disk were rarely investigated and this article focuses on this type of interaction. It is a fundamental study that is intended to contribute to future flight dynamics investigations.
Impact of Aeromedical Evacuation Air Mobility Operations on Autonomous Systems
Authors:   Praxis Technologies Inc., Stanzione Kaydon ,   Boston Area HAAO, Ruff Richard ,   Georgia Institute of Technology, Schrage Daniel
Published: August 2024

Over the past few years, there has been a growing interest by military services to reduce the risks to aircraft and crew during extraction of wounded soldiers. As recently as this year, the U.S. Army Medical Research and Materiel Command (USAMRMC) is examining initiatives for a next generation trauma care capability centered on autonomous, unmanned, and robotic solutions. While the ultimate goal of trauma care autonomy is to sustain life, the need still exists to extract wounded soldiers via VTOL aircraft. While estimates vary, Air Mobility Command Aeromedical Evacuation (AE) forces support approximately 20,000 combined fixed and rotary wing airlift movements annually. During Vietnam, AE was responsible for transporting 108,000 wounded soldiers from a combat zone to medical facilities. Intra-facility transport accounted for an additional 280,000 troop transports. Last year in the United States, civilian Helicopter Air Ambulance Operations (HAAO) account for the transport of over 500,000 patients annually. HAAO experience, while non-combatant, offers significant experience in operational processes and airlift requirements when there is an emergency involving immediate threat to life, limb, or sight. As military services are challenged with providing soldier location and extraction in austere and ever-increasing hostile environments, there has been numerous air vehicle design configurations proposed and even flight tested to meet the requirements. However, the operational procedures considering air vehicle and patient extraction can be extremely challenging for piloted flight and medical crews. Promising design solutions are a result of recent developments in electric VTOL (eVTOL) technologies. Distributed Electric Propulsion (DEP) solutions allow designers flexibility in locating propulsors and eliminating fossil fuel systems. These advancements result in structural designs that are more conducive to patient ingress and egress. In addition to structural design flexibility, eVTOL designs offer other benefits versus Internal Combustion Engines (ICE) counterparts to include reduced acoustic and thermal signatures and greater agility and maneuverability while eliminating the required pilot and aircrew resting periods during up-tempo operations. Autonomous air vehicle design considerations for Air Mobility Aeromedical Evacuation are developed based on HAA and US Armed Forces airlift experience with avionics, flight procedures, and air crew operations.
Automated Labeling of Helicopter Maintenance Records with Text Classification
Authors:   Sikorsky, Labarga John , Friedman Sam
Published: August 2024

Separating plaintext documents into defined classes, known in the data science literature as text classification, is a time-consuming task that is essential to the processing of correspondence, safety records, and maintenance documents in the aviation industry. This work discusses a machine learning approach to this problem, and demonstrates how to construct an end-to-end document classification solution. This system is capable of classifying documents with high accuracy, thus alleviating the need for labor dedicated to this task.
Design of a High Power Density Pericyclic Drive Prototype for Testing at NASA Glenn Transmission Test Facility
Authors:   Pennsylvania State University, Mathur Tanmay ,   University of Tennessee, DeSmidt Hans , Smith Edward , Bill Robert
Published: August 2024

The focus of this work is to integrate component level design analyses developed for different machine elements of a twin Pericyclic drive into a comprehensive design decisions framework. The integrated system loads, bearing loads, and tooth contact analysis procedure is used for designing a prototype for minimum weight within the constraints posed by assembly, component life, and system efficiency. Simultaneous sizing of the gears, bearings and shafts was performed for given input power, speed, and reduction ratio. The effect of inertial loads due to nutational gear motion is significant on support bearing loads and the gear bodies are designed to minimize these loads. It was demonstrated that a power density close to 1 kW/kg can be achieved for the Pericyclic transmission. The test article is designed to operate at a 50 HP, 5000 RPM input with a speed reduction ratio of 32:1 and system efficiency greater than 93%.
Ring Gear Vibration Suppression via Active Support Struts in a Planetary Gear Transmission
Authors:   University of Tennessee, Guan Peng , DeSmidt Hans
Published: August 2024

This paper investigates an active vibration suppression method for planetary gear transmission (PGT) driveline system supported by discrete boundary struts. To effectively suppress the vibrations introduced by the parametric excitations, the proposed active vibration control method develops an output feedback controller via applying LQR theory to a reduced-order stationary ring gear model equipped with sensors collocated with boundary struts. Afterward, the output feedback controller is integrated to the PGT driveline system for actuator control to suppress the vibrations transmitted through boundary struts. Assume-modes method, Floquet theorem and harmonic balance method are used to obtain the steady-state response of the system. By including enough sensors and number of modes in the reduced-order ring gear model, the vibrations transmitted through boundary struts can be suppressed. Additionally, the vibrations in other PGT components are examined to ensure that the proposed control method does not introduce exaggerating behavior to those components.
The Jetting Phenomena in Meshed Spur Gears
Authors:   NASA, Delgado Irebert ,   HX5 Sierra LLC, Hurrell Michael
Published: August 2024

Rotorcraft gearbox transmissions are required to efficiently transfer power from the turbine engine to the main and tail rotor blades. Losses in transmission efficiency impact mission payload and aircraft range. These systems are expected to deliver high power with high gear pitch line velocities. More recently, shrouding has been employed to reduce windage power losses associated with the high gear rotational speeds. However, recent experimental results from tests conducted by the authors show the negative impact of close clearance shrouds on windage power loss, particularly at the meshed region where flow is ejected, or jetted, from the collapsing tooth spaces. A literature review was conducted to gain further insight into the phenomenon of gear mesh jetting and strategies to mitigate and control the associated losses. An analysis was conducted on windage losses in the mesh region. Test results are given for a modified shroud configuration. Finally, a discussion on observed trends follows with suggestions on future research.
Lean Engineering at Elbit Systems Aerospace Division - Implementation Journey
Authors:   Elbit Systems Ltd., Schongot Jackob , Man Yael
Published: August 2024

One of the core values of Elbit Systems Aerospace Division is innovation. The innovation mindset is not limited to new products and systems, but also to find new ways to improve time to market, quality and costs of our products.
The focus of this article is on the implementation journey of a Lean-Agile mindset in the engineering department, including the new organizational structure and routines, the challenges we are facing and the benefits gained from the transformation. It includes lessons learned from implementation of the Scaled Agile Framework (SAFe®) and recommendations for big organizations considering taking a similar approach.
Autonomous Quadrotor Control and Navigation with Snapdragon Flight
Authors:   Alfred Gessow Rotorcraft Center - University of Maryland, Solomon Eric , Hrishikeshavan Vikram , Chopra Inderjit
Published: August 2024

Visual-inertial odometry has demonstrated the ability to turn a traditional micro-aerial vehicle (MAV) into an advanced platform for aerial robotics. Traditional MAV platforms suffer from strict weight limitations and in some cases flight controllability issues. Qualcomm's Snapdragon Flight™ is utilized to solve both of these problems. It is chosen due to its low weight and high processing power. Results show sufficient controllability to conclude feasibility using Snapdragon Flight™ in GPS-denied environments and onboard unconventional MAV frames. This study is presented with a generic quadrotor configuration. Methods are presented for achieving generic MAV autonomy as well as extending autonomy to more unconventional MAV configurations.
Effect of Rotor Cant on Trim and Autonomous Flight Dynamics of a Quadcopter
Authors:   Rensselaer Polytechnic Institute, Niemiec Robert , Gandhi Farhan
Published: August 2024

Rotor cant is simulated on an SUI Endurance quadcopter. Two types of rotor cant, flapwise and torsional cant, are defined, and multirotor coordinates are used to define four aircraft-level modes of cant for each type. Collective flapwise cant causes an increase in collective control and power required, and a positive correlation exists between collective flapwise cant and pitch control. It also causes the longitudinal and lateral poles to retreat from the origin. Postive longitudinal flapwise and negative lateral torsional cant cause a reduction in nose-down attitude in forward flight, reducing drag and negative lift on the fuselage by 13% and 31% at 15 m/s, which reduces power required by 6% while increasing hover power by only 0.5%. Lateral flapwise cant and longitudinal torsional cant affect the roll attitude, though no power savings is available. Differential flapwise cant causes forward speed to impose a net rolling moment, which is compensated by roll control. Differential torsional cant is positively correlated with roll control. Both differential cant modes cause some poles to move toward the origin while others move away, but differential torsional cant can increase yaw authority by up to 325%.
Evaluation of the Sanitizing Capacity of a 2-ppm Ozonated Water Handheld Bottle Applied to Simulated Food-Contact Surfaces
Authors: Cano Carmen , Gatima Mahoro Grace , Chaves Byron D.
Published: August 2024

Contaminated food-contact surfaces can transfer pathogenic organisms within domestic settings, potentially leading to foodborne illness. The objective of this study was to evaluate the efficacy of an ozonated water handheld spray bottle to eliminate bacteria on food-contact surfaces. Escherichia coli, Listeria innocua, Pseudomonas spp., and Staphylococcus aureus were used to inoculate polypropylene cutting boards and stainless steel knives. A 2-ppm ozonated water spray was applied to the inoculated surfaces and allowed to act for 30 or 60 s. Ozonated water was able to significantly reduce (P < 0.05) generic E. coli on cutting boards (0.7 ± 0.1 log10 CFU/cm2). In addition, L. innocua was significantly reduced (P < 0.05) on polypropylene (0.9 ± 0.2 log10 CFU/cm2) and stainless steel (1.1 ± 0.1 log10 CFU/cm2). There were no significant reductions of Pseudomonas (0.5 ± 0.3 log10 CFU/cm2) or S. aureus (0.2 ± 0.1 log10 CFU/cm2). Significant reductions were only observed after 60-s treatments, and there was no significant effect of surface type on the reductions. Overall, low concentration–ozonated water is moderately effective at reducing nonpathogenic bacteria loosely attached to simulated clean food-contact surfaces.
Deposição mensal da serapilheira em área de Cerrado, em Gurupi, TO
Authors: Silva Francisca de Cássia Silva da , Pedro Carolina Medinilla , Santos Micael Moreira , Portella Augustus Caeser Franke , Giongo Marcos
Published: August 2024

O presente trabalho teve por objetivo avaliar a sazonalidade da deposição de serapilheira em área de Cerrado, em Gurupi, TO. Foram instalados 50 coletores dispostos sistematicamente na área de estudo. As coletas de serapilheira foram realizadas mensalmente, durante dois anos, de julho de 2016 a junho de 2018. O material foi coletado e acondicionado em sacos plásticos, para a separação das frações folhas, galhos e material reprodutivo, posteriormente foi levado à estufa a 70 ºC por 48 h. A deposição de serapilheira variou ao longo dos dois anos, com maior produção no período seco. A produção total da serapilheira e suas frações, estruturas reprodutivas e foliares, não apresentaram diferenças significativas para os anos 1 (5.884,0 kg ha-1) e 2 (5.420,0 kg ha-1), sendo que somente para os galhos foi verificada diferença significativa. Foram mensurados 426 indivíduos distribuídos em 40 espécies e 28 famílias. A diversidade de Shannon H´ equivaleu a 3,11 (nats ind-1) e a equabilidade de Pielou foi 0,84. A espécie Myrcia splendens obteve maiores valores para os parâmetros fitossociológicos. Adicionalmente, foram obtidas correlações significativas entre as variáveis dendrométricas e a fração foliar e galhos.
SISTEM PEMANTAUAN KUALITAS UDARA SECARA REAL-TIME MENGGUNAKAN ESP32 DAN TEKNOLOGI IOT
Authors: Hidayati Rahmi
Published: August 2024

Air quality is the level of cleanliness or air pollution in a certain area. Poor air quality hurts human health and the environment. One of the negative impacts of air quality is caused by forest burning, which causes haze. To overcome this problem, we can use Internet of Things (IoT) technology by building an air quality monitoring system. This research aims to provide air quality information to users by accessing a website that will display real-time data. This system can be utilized by the community to find out the air quality around their residence. The research method uses a waterfall model, which includes requirements analysis, system design, implementation, and testing. The data used is air quality data in Pontianak City, including temperature, humidity, CO, CO2, O2 and dust. The test results for 18 days showed normal values for temperature, humidity, and CO2, while the dust and CO2 sensors showed an increase in value with different category levels, with the lowest value of the dust sensor being 21 µg/m3 and the highest value being 497 µg/m3, while the CO2 value ranged from 433 ppm to 5441 ppm.
ARTIFICIAL INTELLIGENCE DAN KOMUNIKASI ILMIAH: EKSPLORASI PERSPEKTIF MAHASISWA ILMU PERPUSTAKAAN
Authors: Hasibuan Nur Aini , Sayekti Retno
Published: August 2024

Pemanfaatan Artificial Intelligence (AI) dalam bidang pendidikan memudahkan mahasiswa dalam penyelesaian tugas. Penelitian ini bertujuan untuk  mengetahui persepsi mahasiswa jurusan ilmu perpustakaan UIN Sumatera Utara terhadap penggunaan Artificial Intelligence (AI) dalam membantu penulisan karya ilmiah. Penelitian ini menggunakan metode kualitatif dengan pengambilan sampel menggunakan teknik purposive dan snowball. Teknik pengumpulan data dilakukan melalui observasi, wawancara dan dokumentasi. Analisis data dilakukan menggunakan software NVivo dan dilakukan triangulasi untuk memastikan validitas dan kredibilitas temuan penelitian. Hasil penelitian menunjukkan bahwa mahasiswa memiliki persepsi positif terhadap penggunaan Artificial Intelligence (AI) dalam komunikasi ilmiah. Artificial Intelligence (AI) dianggap cukup relevan untuk dijadikan acuan dalam mencari referensi pada penulisan karya ilmiah. Namun, tidak sedikit dari mahasiswa yang kurang ahli dalam menganalisis platform kecerdasan buatan yang relevan dan lebih valid dalam memberikan informasi. The utilisation of artificial intelligence (AI) in the field of education facilitates the completion of tasks by students. This study aims to ascertain the perception of students of the science major at the UIN Library of North Sumatra regarding the role of Artificial Intelligence (AI) in assisting with the composition of scientific papers. This research employs qualitative methods, utilising purposive and snowball sampling techniques. Data is gathered through observations, interviews and document analysis. The data analysis was conducted using NVivo software, and triangulation was employed to ensure the validity and credibility of the research findings. The results indicated that students held a positive perception of the use of artificial intelligence (AI) in scientific communication. Artificial Intelligence (AI) was perceived as a valuable reference tool for locating scientific literature. However, a significant proportion of students demonstrated limited proficiency in analysing AI platforms that could provide more reliable and valid information.
cover Agustus 2024
Authors: Agustus Cover
Published: August 2024

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El rol transformador de la tecnología: herramientas específicas en el aprendizaje de la contabilidad en el bachillerato técnico
Authors: Torres Luis Arturo Moyano , Ruiz Carla Jessenia Alvarado , Loy Gloria Jesenia Alvarado , Caicedo Julio Alejandro Morán , Suárez Alejandra Elizabeth García , Cobos Marcelo Ludgardo Proaño
Published: August 2024

La introducción de este estudio aborda la transformación educativa en la enseñanza de la contabilidad mediante la integración de herramientas tecnológicas, destacando la necesidad de preparar a los estudiantes para un entorno laboral digitalizado. El objetivo general de la investigación consiste en analizar el impacto de estas herramientas en el rendimiento académico y la percepción de los estudiantes en materias contables. La metodología aplicada incluyó el análisis de registros académicos y encuestas entre los estudiantes para evaluar su percepción sobre el uso de la tecnología en el aprendizaje. Los principales hallazgos revelaron un aumento significativo en los promedios de calificación después de la implementación de herramientas tecnológicas, así como una percepción positiva por parte de los estudiantes hacia su uso en el aula. Estos resultados sugieren que la integración de tecnología en la enseñanza de la contabilidad mejora tanto el rendimiento académico como la experiencia de aprendizaje de los estudiantes. En conclusión, este estudio resalta la importancia de adoptar estrategias pedagógicas innovadoras para promover un aprendizaje efectivo y relevante en un contexto digitalizado, contribuyendo así a la formación integral de los estudiantes en el campo de la contabilidad.
Integration of Faith and Piety with IPTEK of Islamic Education According to Bj Habibie
Authors: Muthoharoh Imroatul , Fahmi Alif Anharul , Ramadhan Muhammad Fadli
Published: August 2024

This study aims to find out the concept of integration of imtaq and science and technology according to BJ. Habibie. The method used is the character study methodology with library research. The primary data source comes from books written by BJ Habibie as well as documentation in the form of his video shows. Meanwhile, secondary data sources come from books that are related to the research topic. The results of this study:  His concepts and ideas regarding the need for integration between imtaq and science and technology in Islamic educational institutions to answer the backwardness of Muslims in the fields of science and technology, but still have a strong foundation of faith and piety. According to Habibie imtaq is a positive synergy of cultural elements and religious elements from the acculturation process in the family. While science and technology are the result of the educational process that is pursued by humans. The educational process that combines imtaq and science and technology will give birth to humans who are able to think analytically, systematically, deeply and long term. The result will be born science. Science will give birth to technology. These two dimensions must be synergized to form a superior human being.
Strategic Inventory Optimization: Analyzing Deteriorating Inventory with Price-Dependent Demand, Time-Variant Holding Costs, and Inflation Effects
Authors:   Assistant Professor, IIMTUniversity, Meerut, U.P., India, Kumar Sandeep
Published: August 2024

This research presents a mathematical inventory model with demand dependent on selling price, highlighting its price sensitivity. Additionally, the holding cost is represented as a linear function of time in the model. The main objective is to maximize total profit by developing this framework. Through comprehensive analysis, we investigate the impact of parameter fluctuations on the model. A numerical example demonstrates sensitivity analysis, with graphs showing relationships among model parameters, economic order quantity, optimal timing, and total profit.
Empowering Indonesian Women Migrant Workers in Singapore: the Role of Conflict Management Training and Personality-Based Communication for Migrant Workers Community
Authors:   Post-graduate in Communication Science, Universitas Pembangunan Nasional Veteran JawaTimur, Rahmawati Aulia , N. Febriyanti Syafrida ,   Post-graduate in Communication Science, Universitas Pembangunan Nasional Veteran JawaTimur, Sriyani Sriyani ,   Post-graduate in Communication Science, Universitas Pembangunan Nasional Veteran JawaTimur, Hadi Raynaldo Petric Ben Oni ,   Post-graduate in Communication Science, Universitas Pembangunan Nasional Veteran JawaTimur
Published: August 2024

The present study focuses on a community service project designed to evaluate the efficacy of conflict management training and personality-based communication strategies on Indonesian female migrant workers in Singapore, who are also students at the Open University of Indonesia. The project's primary objective was to aid participants in comprehending themselves and their coworkers more effectively, and to develop practical skills for resolving conflicts and communicating effectively in diverse work environments. Conflict management training encompasses case studies, role-playing, and group discussions, enabling participants to acquire knowledge regarding different conflict management styles and effective communication techniques based on personality types. The post-training evaluation revealed a significant improvement in the participants' comprehension of personality types and their capacity to manage conflicts. This study highlights the significance of incorporating personality aspects into conflict management and communication training, and the advantages of such training in enhancing interpersonal relationships and productivity in the workplace, as well as managing conflicts between individuals and organisations.
Labor Productivity in the Salai Catfish Processing Group at the Patin Village Processing Centre, Koto Mesjid Village, Kampar District
Authors: Zulkarnaini Zulkarnaini , Yanti Chicka Willy , Ginting Herawati Br
Published: August 2024

This research was conducted at the Kampar Patin Village Processing Centre in February 2024. The determination of the research location was purposive based on the consideration that KampungPatin Processing Centre is a potential patin fish processing production area. This sampling method uses a survey method, namely by conducting field observations and direct interviews. It is known that the number of salted catfish processing workers in the Processing Centre is 36 people. The purpose of this study is to determine the level of labour productivity and analyse the factors that affect labour productivity. The method used to analyse the data in this study is using single factor productivity analysis and multiple linear regression analysis. The results showed that the average productivity of catching fish was 1.18 tonnes/hour, cleaning fish was 0.58 tonnes/hour, and lighting fish was 0.19 tonnes/hour. Factors that significantly affect labour productivity in salted catfish production are wages by 20.1%, education by 39.1%, experience by 53.8%, and the number of dependents by 40.7%. So in this study, labour productivity is classified as high, namely in fishing activities and the most influential factor on labour productivity is experience.
Discourse Analysis: Arthasastra Values in the Accountants’ Code of Ethics
Authors:   Faculty of Economics and Business, Universitas Udayana, Indonesia, Juliantini Dewa Ayu Toga , Nyoman Budiasih I Gusti Ayu ,   Faculty of Economics and Business, Universitas Udayana, Indonesia, Wirakusuma Made Gede ,   Faculty of Economics and Business, Universitas Udayana, Indonesia, Wijana Asrama Putra I Nyoman ,   Faculty of Economics and Business, Universitas Udayana, Indonesia
Published: August 2024

This research was done on purpose to examine and analyze the values of Arthasastra teachings in the Accountant's Code of Ethics. Constructivism is the paradigm used in this research, employing a discourse analysis approach according to Teun A. Van Dijk. The data in this study are derived from discourse found in the book titled 'Modern Accounting Concepts in Kautilya's Arthasastra with the Accountant's Code of Ethics,' supplemented by interview results from key informants through semi-structured interviews. Analysis of the data reveals that the values in the Arthasastra book are related to those found in the Accountant's Code of Ethics. The connection between these basic ethical principles emphasizes the importance of integrity and also ethics in the accounting profession. The sanctions applied in both contexts underscore the ethical responsibility of accountants, facilitating the simultaneous application of values from Arthasastra teachings and the Accountant's Code of Ethic.
The Influence of Financial Literacy on Investment Decisions Through Locus of Control Based on Gender (Case Study on Young Gen-Z Entrepreneurs)
Authors:   Faculty of Economic and Business, Telkom University, Bandung, Indonesia, Gede Ariansyah Aditya , Firmialy Sita Deliyana ,   Faculty of Economic and Business, Telkom University, Bandung, Indonesia
Published: August 2024

The dominance of Gen-Z as entrepreneurs and investment actors shows positive results, due to the growth and dominance of this generation bringing new innovations, rapid technological adaptation, and a more dynamic approach in the business world, which has the potential to strengthen the economy as a whole, with a high level of financial literacy, they are able to make smarter and more informed investment decisions, while the locus of control factor provides insight additionally regarding how individuals control and respond to their financial situations. This research aims to determine the influence of financial literacy on investment decisions, with the moderation of the locus of control variable based on gender in young Gen-Z entrepreneurial students. and identify what factors influence these three financial components. We created an online questionnaire and distributed it to 131 students who are part of the Gen-Z young entrepreneur students. The data analysis method uses a simple linear regression model and Sobel test analysis using the SPSS software program. These results show that financial literacy has a positive effect on investment decisions and shows that investment decisions have a positive effect on locus of control.
ОҚУШЫЛАРҒА СЫЗЫҚТЫҚ ТЕҢДЕУЛЕР ЖҮЙЕСІН КОМПЬЮТЕРЛІК БАҒДАРЛАМАЛАРДЫ ҚОЛДАНЫП ОҚЫТУ ӘДІСТЕРІ
Authors: Бостанов В.Г , Төлбасы Даурен
Published: August 2024

This article shows the effectiveness of teaching mathematics using Hi-tech and through application GeoGebra, which are of particular importance for the future development of e-learning of maths. GeoGebra is an interactive application for geometry, algebra, statistics and calculus, a special software environment that allows you to learn and teach mathematics and natural science from elementary school to university. It can be used for mathematical experiments and innovations both in the classroom and at home for active and problem- oriented learning. In this article, we show a sketch of the using of the above- mentioned software for creating, solving and illustrating mathematical problems, drawing plots and graphs. An algorithm for solving a system of linear equations with two variables using the GeoGebra environment is also described.
Redefining Reality: The Role of Men in Achieving Gender Equality and Women Empowerment
Authors: Swati Suman
Published: August 2024

This article examines the critical role of men in achieving gender equality and women's empowerment, exploring how men can redefine traditional gender roles and act as allies in this essential societal transformation. While much focus has been placed on women’s roles in advocating for gender equality, this research highlights how men’s active participation is equally vital in reshaping societal norms, challenging stereotypes, and fostering a culture of respect and equity. By addressing historical contexts, literary representations, and contemporary practices, this article argues that men’s involvement is indispensable for meaningful progress towards a more just and equitable society.
Thyroid dysfunction and its relationship to serum lipid levels in adults
Authors: Veliz Bazurto Darwin Gustavo
Published: August 2024

Thyroid Dysfunction corresponds to the early phase of a thyroid disorder that predominantly affects middle-aged and elderly individuals. This research analyzes studies conducted in a laboratory, where the relationship between thyroid dysfunction and serum lipid levels was evaluated. The methodology was descriptive and cross-sectional, with a sample of 52 patients, from which 8 were excluded due to unusual findings in the thyroid examination that were unrelated to the requirements of this study. The results revealed a high percentage of patients with serum levels of total cholesterol and triglycerides above the upper normal limit. It is crucial to monitor and regulate thyroid function to prevent complications related to elevated blood lipid levels and to reduce the risk of developing cardiovascular diseases in affected individuals.
Electronic-based Nursing Documentation: Literature Review
Authors: Gorean Grace Irma , Hariyati Rr. Tutik Sri , Handiyani Hanny
Published: August 2024

Pendahuluan Pendokumentasi keperawatan  bertujuan untuk  menunjukkan akuntabilitas dan tanggung jawab tindakan perawat. Dokumentasi yang tidak memadai mempengaruhi kesehatan, keselamatan pasien serta kualitas pelayanan. Pendokumentasi keperawatan elektronik adalah system catatan yang menggunakan komputer untuk mengetahui tindakan yang dilakukan oleh perawat dalam menjalankan proses keperawatan. Tujuan Memberikan gambaran secara umum mengenai manfaat pendokumentasi keperawatan berbasis  elektronik. Metode menggunakan metode literature review dari berbagai jenis metode penelitian, termasuk studi cross sectional, literatur review, desain restrospektif komparatif, kuasi eksperimental, metode pendekatan kualitas  pra dan pasca regresi logistic multilevel univariat dan multivariat, pengembangan kusioner, tinjauan Pustaka prisma. Hasil Analis jurnal didapatkan bahwa pendokumentasian keperawatan berbasis elektronik memiliki manfaat dalam  meningkatkan keakuratan dan kecepatan dalam mengelolah informasi, efektifitas pengelolaan data pasien serta meningkatkan mutu pelayanan keperawatan dan keselamatan pasien. Kesimpulan  dari segi efisiensi, efektifitas ,fokus pasien dan akurasi waktu dokumentasi keperawatan berbasis elektronik lebih berkualitas dibandingkan dokumentasi berbasis kertas.
The Effectiveness of the Educational Program Through Audio Visual Media about Hand Hygiene and Diarrhea on the Knowledge of Students in Matungkas State Elementary School, North Minahasa Regency Indonesia
Authors: Sarimin Dorce Sisfiani , Pasambo Yourisna , Tangkudung Yesika , Ponidjan Taty S. , Ransun Djoni
Published: August 2024

Background:School-age children have a habit of paying less attention to the need to wash their hands in daily life, especially when in the school environment. They usually directly eat the food they buy around the school without washing their hands first. The behavior is certainly influential and can trigger the occurrence of diarrhea. Learning using interesting methods can increase knowledge and make it easier for children to understand hand hygiene and diarrhea.Objective: To find out the effectiveness of educational programs through audio visual media about hand hygiene and diarrhea on the knowledge of Matungkas State Elementary School students, North Minahasa Regency.Method: Using an approachQuasi Experimental with non equivalent control group design. The research subjects were 86 respondents, the sampling method was by probability sampling who fit into the inclusion criteria. The measuring instrument used is a knowledge questionnaire hand hygiene and diarrhea. Results of analysis with testsMann Whitney shows that there is a difference in value posttest knowledge of both groups with a P-valueValueequal to 0.000 means P-Value <0.05. Conclusion:Health education in the experimental group which used audio-visual media was more effective than the control group which was given health education through lectures using leaflets, but both groups experienced an increase in knowledge. In conclusion, educational programs through audio-visual media are effective in increasing knowledge about hand hygiene and diarrhea in students at SD Negeri Matungkas, North Minahasa Regency
Towards Complexity Analysis of Some Combinatorial Algorithms Using Knapsack Model
Authors: Bin Usman Bashar , Abdullahi Ibrahim , Elisha Okeyinka Aderemi
Published: August 2024

Knapsack problem is a combinatorial optimisation problem which is concerned with finding a solution where an exhaustive search is difficult or even impractical to do. Approximate algorithms, also called heuristics are therefore applied in solving Knapsack problems. The goal of this study was to solve the Knapsack model using three heuristics viz: greedy, dynamic programming, and branch-and-bound strategies. The ultimate objective of our study was to evaluate the time complexities of these heuristics as input sizes become larger. In the bid to get that done, a Knapsack problem was solved using the approximate algorithms, employing the same programming environment, with varying input sizes. The problem was simulated using different input data sizes. A synthesis of the results obtained, that is, the various time complexities, was then carried out and a comparative study of the three algorithms was done. The coefficients of the variables used in the Knapsack model for simulation were generated using random numbers generating algorithm. Our results showed that the greedy algorithm was the most efficient computationally. The second best efficient was the dynamic progranmming algorithm while the least in terms of time complexity is branch-and-bound strategy. It is considered a worthwhile effort to study more metrics of complexity measurement. This is recommended as good enough for further research attention. However, our present study has shown in pragmatic form the computational complexity of the greedy, dynamic programming, and branch-and-bound algorithms.
REGISTRO NO CONSELHO REGIONAL DE ADMINISTRAÇÃO EM CONTRATAÇÕES PÚBLICAS: ANÁLISE DAS JURISPRUDÊNCIAS DO TCU E A IMPORTÂNCIA DO ADMINISTRADOR
Authors: Medianeira Argenta Jaúna , Buenavides Rodrigues Rodrigo
Published: August 2024

O artigo aborda a crescente complexidade das licitações e contratações públicas, focando nas divergências jurídicas relacionadas à obrigatoriedade do registro no Conselho Regional de Administração (CRA) para empresas que prestam serviços de outsourcing à administração pública. Destaca-se a relevância estratégica desses serviços para a eficiência no setor público. O debate jurídico, centrado nas jurisprudências do Tribunal de Contas da União (TCU), abrange contratações de mão de obra com dedicação exclusiva, contestando a necessidade de registro no CRA. O artigo se apoia em teorias da administração, como a Clássica, Comportamental e de Contingência, além de normativas recentes como a Lei 14.133/2021 e a Instrução Normativa Nº 5/2017. Destaca a importância dos administradores registrados para a fiscalização desses serviços e argumenta que, diante da complexidade, a presença legal de administradores em serviços terceirizados é essencial, promovendo eficiência operacional e integridade empresarial.
Celebrar el campo en los años ’90: Una aproximación al cambio agrícola a partir de la Fiesta Provincial del Trigo (Tres Arroyos)
Authors: Villanueva Silvana
Published: August 2024

En la última década del siglo XX confluyeron los resultados de los grandes cambios que se venían registrando en la estructura agraria bonaerense desde las décadas anteriores con la profundización de las reformas estructurales que afectaron completamente el accionar del Estado. La crisis de la deuda, las reformas estructurales y su aplicación y el devenir del agro no fueron ajenas a la fisonomía que adquirieron las celebraciones vinculadas a la producción económica local que surgieron en la provincia de Buenos Aires hacia mediados del siglo XX. En este trabajo nos centraremos en una de estas fiestas que emergió en el sur de la provincia en 1970 en el partido de Tres Arroyos: la Fiesta Provincial del Trigo (1970). Los dos pilares (el sector agrario y el Estado) sobre los que se había erigido esta celebración adoptaron en este período una configuración diferente ¿Cómo repercutió esto en la celebración? ¿Puede observarse en el tiempo festivo las tensiones que despertaron estos cambios? En este abordaje trataremos de responder estas preguntas dando cuenta de las características que asumió la celebración bonaerense del trigo en la década del noventa a partir del análisis de sus programas de festejos, los registros de la prensa períodica y el análisis de los discursos de las autoridades presentes en la celebración.