bluuebunny/crossref_metadata_2025 huggingface dataset:
Estimating Unmanned Aerial System Pose Using Cast Shadows and Computer Vision Techniques
Authors: Sarkar Sagar , Garcia Monica , Eubanks Brandon
Published: March 2024

Although there have been significant advancements in vision-based localization techniques over recent years, there are still problems that need to be addressed. One of these problems is localization in dynamically illuminated environments, like one might find when a small unmanned aerial system (sUAS) equipped with a lighting payload attempts to autonomously navigate inside a dark, damaged structure. When visual odometry (VO) methods are implemented in a dynamically illuminated environment, the accuracy of the state estimation degrades because the shadows are improperly identified as features and these shadow-features move in a different manner than static objects in the environment. As a result, sUAS pose estimates often accumulate errors without bound. This work will examine the merits and demerits inherent in conventional or prevailing sUAS self-localization techniques in dark environments. Concurrently, it introduces a novel shadow-based localization methodology capable of augmenting these established techniques. This approach capitalizes on the shadows cast by a light source affixed to a sUAS. The establishment of a communication bridge between the sUAS and a ground station using the Robot Operating System (ROS) facilitates the execution of resource-intensive computational tasks such as real-time feature extraction using OpenCV libraries. The pose estimation algorithm harnesses these extracted features to approximate the vehicle’s pose, and this estimation is communicated to the vehicle via the ROS communication bridge. Preliminary results obtained from experimental implementation of the proposed methodology are discussed.
Cost-Effective Numerical Procedure for Quantifying Positional Error and Uncertainty in Large Volume Optical Motion Capture Systems
Authors: Dennison Hunter James , Griffin Christopher , Huebsch Wade
Published: March 2024

Optical motion capture (OMC) is a relatively new experimental tool used in many branches of science and engineering. Despite OMC’s widespread use, literature and practical procedures on the quantification of error and uncertainty in OMC systems for rigid bodies are currently underdeveloped. However, in most studies involving error and uncertainty quantification, the OMC volumes are relatively small (maximum length of 2m in any dimension) and involve expensive experimental apparatuses. Therefore, a cost-effective procedure to quantify the positional errors and uncertainties present in a large volume OMC system is presented. The procedure utilizes the kinematics of a wooden block traveling through air to predict errors and uncertainties in the OMC system by only collecting trajectory data. The procedure performs this task by utilizing statistical and numerical methods coupled with an ordinary differential equation (ODE) solver to predict a numerical projectile flight from the experimental data for which to compare and get the error in the OMC system. The positional uncertainty is calculated in two components and added in quadrature. The first component of uncertainty is calculated from 95% mean confidence interval values of the initial conditions propagated through the same ODE solver and compared to the numerical trajectory. The second component quantifies the uncertainty of the numerical path from drag due to the orientation of the block. Computational fluid dynamics (CFD) is used to find the coefficient of drag for the uncertainty case, which is then used to compute another numerical trajectory to compare to the original numerical path to quantify uncertainty. The OMC system consisted of 30 VICON Vantage V5 cameras with a test volume of 19.2 x 8.5 x 5.8 m3. The results of the study suggest that the procedure is valid and produces reasonably small mean errors and uncertainty between the range of 10 to 20mm.
Differentiation between Appendix O and Appendix C Icing Conditions in Flight Using the Collins Ice Differentiator System
Authors: Hamman Matthew , Gelao Giancarlo , Ridouane El Hassan , Chabukswar Rohan , Botura Galdemir
Published: March 2024

Protecting against atmospheric icing conditions is critical for the safety of aircraft during flight. Sensors and probes are often used to indicate the presence of icing conditions, enabling the aircraft to engage their ice protection systems and exit the icing cloud. Supercooled large drop icing conditions, which are defined in Appendix O of 14 CFR Part 25, pose additional aircraft certification challenges and requirements as compared to conventional icing conditions, which are defined in Appendix C of 14 CFR Part 25. For this reason, developing sensors that can not only indicate the presence of ice, but can also differentiate between Appendix O and Appendix C icing conditions, is of particular interest to the aviation industry and to federal agencies. Developing detectors capable of meeting this challenge is the focus of SENS4ICE, a European Union sponsored project. While participating in the SENS4ICE Project, Collins Aerospace has developed an ice detection and differentiation sensor known as the Collins Ice Differentiator System (Collins-IDS). A flight test campaign evaluating the performance of the Collins-IDS in natural icing conditions was completed; the results of which are the focus of this technical paper. During the campaign, the Collins-IDS successfully detected the presence of ice and determined, with high accuracy whether that ice was Appendix C or Appendix O. Additional testing in Appendix O icing conditions, either in an icing wind tunnel or during a flight test in natural icing conditions, will benefit the future development of the Collins-IDS.
Computational Modelling of Hypersonic Nozzles: The Influence of Enthalpy on the Flow Thermochemistry
Authors: Teixeira Odelma , Pascoa Jose
Published: March 2024

In this work, an investigation of the enthalpy effects on the thermochemical non-equilibrium in hypersonic nozzles is performed. Three different nozzles, with different geometries and stagnation enthalpy conditions are used in this study. The three cases, two of them with stagnation enthalpy conditions of 3.3 MJ/kg and 7.56 MJ/kg, use molecular nitrogen as the testing fluid and in the third case, corresponding to the higher enthalpy condition of 23.8 MJ/kg, the fluid is partially dissociated air composed by five neutral species (N2, O2, NO, N and O). A reliable numerical model, previously validated by the authors, using non-equilibrium Navier-Stokes-Fourier equations within a density-based algorithm is here employed in the OpenFOAM framework. After an estimation of the discretization uncertainties by using the Richardson extrapolation method and Roache’s Grid Convergence Index, the results are obtained by using a sufficient independent grid for each case. It was found that the nozzle with the higher non-equilibrium impact on the flow properties, was the one with the higher expansion ratio, with the difference between equilibrium and non-equilibrium of 17% for the Mach number, 35% for the static pressure and 38% for the static temperature. Using three different stagnation conditions, of 4.92 MJ/kg, 5.98 MJ/kg, and 7.56 MJ/kg, for that nozzle, it was revealed that the increasing of the stagnation enthalpy at the reservoir leads to an increment of the degree of non-equilibrium inside the nozzle, reaching its maximum at the nozzle exit. Increasing the stagnation enthalpy in 1.58 MJ/kg leads to an increment of the non-equilibrium degree in 3.4% for the Mach number, 5.5% for the static pressure and 6.6% for the static temperature.
AZ31-MWCNT Composites Fabricated Through Powder Metallurgy for Aerospace Applications
Authors: Mukunda Sandeep , Boppana Satish Babu , Chinnakurli Suryanarayana Ramesh , T Aravinda , Khan Saleem
Published: March 2024

The aerospace industry's unceasing quest for lightweight materials with exceptional mechanical properties has led to groundbreaking advancements in material technology. Historically, aluminum alloys and their composites have held the throne in aerospace applications owing to their remarkable strength-to-weight ratio. However, recent developments have catapulted magnesium and its alloys into the spotlight. Magnesium possesses two-thirds of aluminum's density, making it a tantalizing option for applications with regard to weight-sensitive aerospace components. To further enhance magnesium's mechanical properties, researchers have delved into the realm of metal matrix composites (MMCs), using reinforcements such as Alumina, Silicon carbide, Boron carbide and Titanium carbide. However, meager information is available as regards to use of Multi-Walled Carbon Nanotubes (MWCNTs) as a reinforcement in magnesium based MMCs although, CNTs exhibit excellent stiffness coupled with very low density.

In the light of above, the present work focusses on development of lightweight magnesium based MMCs using CNTs as nano-fillers. This research explores the synthesis and characterization of MWCNT-reinforced AZ31 magnesium alloy composites. The weight fractions of MWCNTs were varied from 0.3% to 1.2% in steps of 0.3%. Powder metallurgy technique has been used to develop the composite. Ball milling was used to blend the composite mixture of AZ31 & CNTs. Microstructural studies such as optical micrograph, scanning electron microscopy (SEM) and transmission electron microscopy (TEM) have been carried out on the developed composites. Micro hardness and compression strength tests have been carried out on the developed composite. X-ray diffraction (XRD) and Energy Dispersive Spectroscopy (EDS) studies have also been carried out to analyze the compositional elements present in the developed composite. Microstructural studies reveal a fairly uniform distribution of CNTs within the matrix alloy AZ31. A significant improvement in both hardness and compressive strength have been observed for the developed composites when compared with the base alloy.
Identification of Standard Utility Parts – Bolts and Nuts
Authors:   E-25 General Standards for Aerospace and Propulsion Systems
Published: March 2024

This information report presents recommendations on part number marking which provides for the maximum identification on bolts and nuts while ensuring adequate readability.
Aerospace Vehicle Wiring, Lessons Learned
Authors:   AE-8A Elec Wiring and Fiber Optic Interconnect Sys Install
Published: March 2024

This AIR is limited to the requirements of AS50881 and examines these requirements, providing rationale behind them. AS50881 is only applicable to the aircraft EWIS. Pods and other devices that can be attached to an aircraft are considered as part of the aircraft equipment design. Its scope does not include wiring inside of airborne electronic equipment but does apply to wiring externally attached to such equipment. The AS50881 scope does not include attached devices but does include the interface between the pod/equipment and aircraft wiring. Section 3.3.5 addresses components such as antennas and other similar equipment that were once supplied as Government Furnished Aeronautical/Aerospace Equipment (GFAE).
Aluminum Alloy, Rolled or Cold Finished Bars and Rods, (7075-T651), Solution and Precipitation Heat Treated
Authors:   AMS D Nonferrous Alloys Committee
Published: March 2024

This specification covers an aluminum alloy in the form of bars and rods in the sizes and shapes described in 3.3.1 (see 8.7).
Titanium Alloy, Extrusions and Flash Welded Rings, 6Al - 4V, Solution Heat Treated and Aged
Authors:   AMS G Titanium and Refractory Metals Committee
Published: March 2024

This specification covers a titanium alloy in the form of extruded bars, shapes, and flash-welded rings up through 3.000 inches (76.20 mm), inclusive, in nominal diameter or least distance between parallel sides, and stock for flash-welded rings of any size (see 8.7).
Cooperative Driving Automation (CDA) Feature - Infrastructure-Based Prescriptive Cooperative Merge
Authors:   Cooperative Driving Automation(CDA) Committee
Published: March 2024

This SAE Information Report describes a concept of operations (CONOPS) for a Cooperative Driving Automation (CDA) Feature for infrastructure-based prescriptive cooperative merge. This work focuses on a Class D (Prescriptive; refer to J3216) CDA infrastructure-based cooperative merge Feature, supported by Class A (Status-Sharing) or Class C (Agreement-Seeking) messages among the merging cooperative automated driving system-operated vehicles (C-ADS-equipped vehicles). This document also provides a test procedure to evaluate this CDA Feature, which is suitable for proof-of-concept testing in both virtual and test track settings.
Is healthcare sustainable?
Authors: Gomez-Acebo Aline
Published: March 2024

Healthcare is one of the largest polluting industries in the world, not only as a carbon emitter but also as an ever growing waste creator that still sees differences in countries depending on the per capita income, which calls for urgent action. The pandemic has evidenced the lack of certainty in the system, urging for a need to implement new technologies to leverage the supply to meet the escalating demand. Efficiency and optimization are the two key paths that need to be taken on the road to sustainability in the major resource consumer industry that is healthcare.
Can quantum computing be the solution to energy use in computation?
Authors: Georgieva Elena
Published: March 2024

Today, humanity cannot advance without the help of computation. There are still many problems that need resolving that would never be solved without the help of a powerful computer. It is also impossible to build a large enough memory to allow us to solve these complex problems. However, even if we manage to achieve the impossible, with the unprecedented rise of data and the ever-evolving complexity of algorithms, computing the answers in the traditional way would require billions of MWs of power consumption. Not to mention the energy required to cool down the powerful computers from the significant amount of heat they produce.

Humanity is quickly reaching the limits of computations that can be currently achieved, raising concerns about the sustainability and environmental impact these power-hungry machines require. Enter quantum computing – the revolutionary technology holding the promise of not only enhancing computational speeds and capabilities but also potentially alleviating the energy burden imposed by traditional computing methods.
Demographic analysis of the suicide method by gender and age of the deceased between 2001 and 2010
Authors: Skorupa Marcin , Marczyk Łukasz , Cytlau Bartłomiej , Gil Kacper , Augustyn Joanna , Łach Aleksandra , Konopka Tomasz
Published: March 2024

Aim of the study: Analysis of self-immolation cases and distribution of the resulting burns and their degree.
Material and methods: The study included 16 cases from the Department of Forensic Medicine, Jagiellonian University Medical College in Cracow from 2000-2022 in which the cause of death was self-immolation. Based on the analysis of photographs and autopsy reports, drawings were made showing the exact distribution and nature of the injuries, moreover, the approximate percentage of body surface area affected was determined as well as the frequency of involvement of specific areas of the body, and the presence of previous diseases and mental disorders including previous suicide attempts.
Results: 81% of victims were male. Two age groups were predominant among the cases analyzed, namely, individuals around the age of 20, and those between 50 and 60 years of age. 44% of the deceased had burns exceeding 80% of total body surface. The most frequently involved body areas were the extremities and chest as well as head and neck. Fourth-degree burns were most prevalent on the head and neck, third-degree burns prevailed on the upper and lower extremities, second-degree burns were mostly found on the chest, and first-degree burns - on the lower extremities. There were no cases of fourth-degree burns of the buttocks. 38% of the subjects had a history of substance abuse, 56% suffered from mental illnesses, whereas 31% attempted suicide in the past.
Conclusions: The distribution of burns in self-immolation cases is inhomogeneous. The most frequently affected area was the head, neck, chest and extremities, most likely due to victims dousing themselves with a flammable substance from the top of the head through the chest. In all cases, the immediate cause of death was burn disease, regardless of the size of the body surface area affected by the burns. The majority of victims had a history of mental illness, substance abuse or suicide attempts.
Neighbours Who Disappeared: Non-Settlement Names With the Element Žid (‘Jew’) in Bohemia
Authors: Dvořáková Žaneta
Published: March 2024

In this paper, I focus on non-settlement geographical names (anoikonyms, microtoponyms or minor place names, i.e. names of fields, meadows, forests, waters, roads, etc.) which preserve traces of the Jewish population in Bohemia, i.e. a part of present-day Czech Republic. The research is based on the Collections of anoikonyms gathered between 1963 and 1980. Names containing the element Žid (‘Jew’) are quite common here, e.g., Židák (56), Židovka (93), Židovna (157), etc. They differ in terms of age and are located throughout Bohemia. These names are motivated by: (1) places where Jews lived and where they were buried (e.g., Jewish cemeteries were often called Židák); (2) the ethnicity or religion of land owners; (3) tragic events (e.g., the field in Lžín U mrtvého žida ‘at the dead Jew’s’); (4) metaphors (names using the adjective židovský ‘Jewish’ as a synonym of a separated place or land of bad quality). Some minor place names arose from the personal name (surname or nickname) Žid and it cannot be ruled out that some anoikonyms, which are assumed to originate from a common noun or ethnonym, also come from a personal name. In many cases, these names are the last memories of Jewish neighbours who disappeared.
Spatial Focus or Onomastic Focus? An Unsolved Problem in Digital Onomastics
Authors: Gammeltoft Peder
Published: March 2024

As with other research, an important part of place-name research is how to localize one’s object of study. Traditionally, place-name localization has been indirect, stated in relation to in which administrative unit the place name was situated. With the so-called spatial turn, geolocation and place-name geodata have started to play an even more significant role in digital onomastics. A tacit premise of geolocation is that it is feature oriented, regardless of whether it is point, multi-point, line or polygon oriented. This is principally at odds with the nature of place names, which have an in-built multi-referentiality. No one has focused on this theoretical problem so far, although, to the advanced user of geolocation-oriented digital onomastics, this is a constantly recurring problem. The present paper explores this problem and proposes a solution to it by introducing the notion of the Unique Place-Name Concept to geolocated place-name databases. This addition will have the added bonus of enabling quick comparisons among multiple features with the same name origin and thus strengthening place-name standardization, making it easier to utilize geodata onomastically, and preventing the doubling of data, among other benefits.
Reflection of Social and Political Changes in the Linguistic Landscape: Demonstrated by Examples From Banská Bystrica
Authors: Jesenská Petra , Krško Jaromír
Published: March 2024

The paper analyses historical and political changes in the linguistic landscape (hereafter LL) using as exemplification the names of streets in Banská Bystrica (hereafter BB) which reflected significant social and political changes that took place in the course of the 20th century. This viewpoint covers a synchronous approach; however, diachrony will be examined too. The LL is documented by means of changes in BB urbanonyms and by means of analysis of historical photographs depicting particular historical periods. Urbanonyms represent a significant part of LL, and compared to other elements, react the most significantly to examined historical and political changes. The dominant political establishment ideologically influences inhabitants, and this is also done by means of official urbanonyms known in LL as top-down signs. Diachronic urbanonymy of BB centre covers naming changes of several streets in the years 1525–2019.
Топонимы Гродненщины в лингвокультурологическом аспекте
Authors: Konczewska Katarzyna
Published: March 2024

В статье предложен несколько отличный от традиционного взгляд на анализ географических названий пограничья, с учетом экстралингвистических факторов и диалектологических наработок. Обращено внимание на топонимический ландшафт как свидетельство сложных процессов формирования полиэтнического, поликультурного, полилингвального субрегиона. Выделены мотивационные группы топонимов: топонимы, обусловленные природно-географическими факторами; топонимы с этнонимной основой; топонимы, образованные от названий сословной принадлежности и видов занятости; топонимы, образованные от названий типов поселений. Выявлены этимологические пласты: древнейший индоевропейско-финно-угорский; балтийский (ятвяжский, литовский); славянский (русинский, польский). Представлены наиболее продуктивные словообразовательные типы. Отмечены топонимы, этимология которых остается спорной. Подчеркнута роль диалектологических наработок в ономастических исследованиях. Автор обращает внимание на то, что лингвокультурологический анализ топонимов пограничных территорий со сложной социолингвистической ситуацией является продуктивным методом ее реконструкции и дает основание для определенных выводов о характере и этапах заселения ареала, а также об историческом многоязычии. Материалом для статьи послужили данные, собранные автором во время полевых экспедиций на белорусско-польском пограничьи. Предложенный многоаспектный интердисциплинарный подход к анализу топонимов пограничья может не только обогатить исследования Гродненщины, но и внести вклад в изучение балто-славянских языковых контактов в латеральных переходных зонах.
Between Localism and Nationalism: The Romanization of Canton (Guangzhou, China)
Authors: Li Junkai , Ouyang Yiying
Published: March 2024

This paper presents the different ways of romanization and divergent ideologies in the toponymy of the city of Canton (Guangzhou, China). The Portuguese named the city Cantão, which was transliterated as Canton in French and English and then into other European languages in an identical way. Later, attempts to standardise romanization emerged in China. With the rise of nationalism and the diffusion of Mandarin, romanizations based on the pronunciation of the national language were later developed. Since the introduction of the pinyin system by the government, the name Guangzhou was legitimized as the only official transcription. However, there is complexity underpinning the linguistic practices and ideologies of the different romanizations of this city. From local identity to national authority, Canton or Guangzhou serve as a representation of a trial of strength in terms of divergent cultural and socio-political values.
Indo-European Toponymy in Minoan Crete: An Etymological Approach
Authors: Perono Cacciafoco Francesco , Eu Min Niki Cassandra
Published: March 2024

Linear A is the yet undeciphered Aegean writing system of the ancient Minoan civilization which flourished in Crete. Many attempts have been made to decipher Linear A, or connect it to a plausible language family, with limited success. The Indo-European connection to Linear A has been rigorously explored over time because of the Mycenean Greek encoded by its descendant writing system, Linear B. This paper proposes possible etymologies of place names in the Linear A script, following a hypothetical relationship to the Indo-European family of languages. We apply historical-phonetic methodologies and the comparative method in order to analyze these plausible toponyms. Potential place names were determined using Linear B phonetic values to determine the phonetic equivalents of Linear A signs, and by examining the position of these sign clusters on various articles. This paper does not attempt to connect Linear A to a language family – rather, it explores the hypothetical connections that could be drawn, the reconstructions we could make, and aims to contribute to the current debate and discussion around Minoan toponymy. Keywords Linear A, minoan, toponymy, Indo-European, etymology
Neubewertung von Ortsnamen des Karpatenbeckens im 11. Jahrhundert
Authors: Póczos Rita
Published: March 2024

Der Beitrag dient dem Überblick ungarischer frühzeitiger Ortsnamenangaben, die möglicherweise auf einen slawischen Ursprung zurückgeführt werden können. Der Korpus der Untersuchung besteht aus Urkunden aus der Zeit Stephans des Heiligen, des ersten ungarischen Königs (d. h. den frühesten Quellen aus dem ersten Jahrzehnt des 11. Jahrhunderts), und anderen Sprachdenkmälern aus dem 11. Jahrhundert, die unlängst monografisch aufgearbeitet wurden, und deren Ortsnamenschatz etymologisch neubewertet wurde. Die Analyse dieser Toponyme zeigt, dass die Mehrheit von ihnen auf mehrere Etyma aus mehreren Sprachen zurückgeführt werden können. Zu einer ethnischen Rekonstruktion können deshalb diese Ortsnamen nur begrenzt verwendet werden: Dass eine bestimmte Ursprungstheorie wahrscheinlicher sei als eine andere, kann nur in Ausnahmsfällen und auf Grund von sehr gründlichen mikrophilologischen Untersuchungen ausgesagt werden, und in solchem Fall wären weitere Möglichkeiten immer noch nicht auszuschließen. Eine solche Neubewertung älterer Namensangaben zeigt jedenfalls eindeutig, dass die frühere Praxis, eine Ursprungserklärungen von anderen willkürlich auszuwählen und darauf basierend bevölkerungsgeschichtliche Schlussfolgerungen zu ziehen, kaum mehr ausgeübt werden sollte.
Places in Mind: Investigating the Link Between Language and Spatial Concepts
Authors: Reszegi Katalin , Rieger Marie A.
Published: March 2024

The paper raises the question of culturally determined differences in the conceptualization of place and space. Several models have already been developed that can be used to study cognitive maps. However, they either targeted a specific type of environment or were not specific enough in terms of the type of places studied. The model developed by Katalin Reszegi, on the other hand, makes it possible to study all kinds of spatial concepts and their corresponding linguistic expressions, paying special attention to the role of toponyms. In the first part of the article, she presents her model and points out the elements and aspects that are particularly important for the cognitive map. In the second part, co-author Marie Rieger discusses two specific examples (from Tanzania) of differences in the conceptualization of space. In the first case, the example of Dar es Salaam shows that the concept of street names, introduced in colonial times, still plays a minor role in orientation in urban space. In the second case, the example of the Usambara Mountains is used to hypothesize that the utilitarian aspect can lead to different naming practices in terms of which types of places are given a name and which are not.
ANALYSIS OF SODIUM (Na) CONTENT IN PORANG (AMORPHOPHALLUS ONCOPHYLLUS) PLANT
Authors: Rachmat Rachmat Sahputra
Published: March 2024

The nutritional content contained in the porang plant, as is the case with other root crops, also contains carbohydrates, contains fat, protein, minerals, vitamins and fiber. This study aims to obtain data on the average sodium mineral content in Porang plants. The analytical method uses an atomic absorption spectrometer (AAS) in flame emission mode. Sample solutions containing sodium were stored in polyethylene bottles. Sodium has a maximum light emission at a wavelength of 589 nm, where the working procedure is that the sample is nebulized into a gas flame to allow controlled excitation to occur. The sodium resonance spectral line at 589 nm is isolated with an interference filter or with a light dispersing device such as a prism or grating. The intensity of the emitted light is measured with a photomultiplier, or photodiode. The intensity of light at 589 nm will be roughly proportional to the concentration of sodium. From the results of the analysis using the AAS method, it was found that the sodium content in the porang tuber sample was obtained from Nganjuk district, East Java, with a sodium content of 51.25 mg per 1 kg of porang tuber flour or 5.125 mg sodium per 100 g of porang tuber. This content is lower than the sodium content in corn, but higher than the sodium content in rice.
Advance effect of magnetic field on the rheological properties of manganese zinc ferrite ferrofluid
Authors: Ibiyemi A. A. , Akinrinola O. , Yusuf G. T. , Olaniyan S. , Lawal J. , Orojo M. , Osuporu B.
Published: March 2024

The rheological characteristics of manganese zinc (Mn-Zn) ferrite magnetic nanofluid synthesized using co-precipitation technique were examined in the absence and presence of magnetic fields. The research formulates required conditions needed for the formation of a gelly-like structure. The impact of magnetic field and temperature on the rheological properties of Mn-Zn ferrite ferrofluid is investigated. When a magnetic field was applied, higher magnetoviscoelasticity and magnetoviscosity were formed. Analysis was also done on other rheological parameters, such as the damping factor, which is crucial for regulating and restricting vibrations in a system. A stiff, gel-like structure is produced when a magnetic field is applied, and the gel-like quality grows as the magnetic field increases; when the magnetic field is removed, the gel-like and rigidity of the structure is lost. At low temperatures, the liquid phase is dominated by solid-like particles, whereas at high temperatures, the liquid-like structure is dominant. This study reveals the conditions required for the creation of high viscous effect and the viscoelastic behavior induced by the field offers important insights for optimizing the Mn-Zn ferrite ferrofluid for a range of applications. Other criterial for gel-like structure formation such as low torque and deflection angle of the ferrofluid were also established.
Characterization of the Sewage Sludge Samples Collected at Delhi, India
Authors: Mishra Rajeev Kumar , Krishan Amit , Kumar Sandeep
Published: March 2024

This manuscript deals with the characterization of different sewage sludge samples. The physiochemical parameters such as pH, organic carbon, organic matter, Total Kjeldahl Nitrogen (TKN), C/N ratio, phosphate, potassium, calcium as well as sodium were evaluated for four different sewage sludge samples obtained in various parts of Delhi, India. The analysis report shows that the sewage sludge has an average value of pH equals to 6.78±0.28. The study revealed that the concentration of organic matter and organic carbon varied from 45.09 % to 49.41% and 77.73 % to 85.18 % respectively. The C/N ratio of the sewage sludge was high which ranged from 6.6 to 23.0 with a mean of 15.9. It was observed that the Total Kjeldahl Nitrogen (TKN) content ranged from 19.6 to 74.02 mg/g, whereas phosphate was found from 2.34 to 9.68 mg/g. The range of potassium concentrations was observed from 5.70 to 11.59 mg/g which shows that sewage sludge is a rich source of nutrients. The concentrations of calcium and sodium varied from 3.53 to 8.57 mg/g and 3.74 to 4.66 mg/g respectively. It can be concluded from the study that sewage sludge is useful in sustainable agricultural as it works as a soil conditioner and biological organic fertilizer. It can be useful in stimulating biological action, rejuvenating soil health as well as in improving the status of an organic matter and the humus content of the soil.
A Study on legislative policy under the Resource Circulation Act on recycling of wind turbine waste blades: Including review of foreign situations regarding the need for the introduction of waste blades
Authors:   National Public Law Review, Lee Keechun
Published: March 2024

There was a time when the development of renewable energy sources such as solar and wind power was thought to be at the cutting edge of environmental protection. However, putting aside various social conflicts related to its location, concerns related to the efficiency of energy production, etc., legal and social agreements regarding the disposal or recycling of these renewable energy power generation facilities were ignored, and the era of introduction and commercialization continued. come. It was a phenomenon not only for us but also around the world. Many European and Western countries are facing their own risk of environmental destruction and are coming up with various policies and plans regarding this. Regarding the problem of disposal of waste solar panels and waste electric vehicle batteries, It is well known that we have taken steps to resolve this issue through legislative and administrative policies.
However, in response to the aging of wind power generation facilities, especially waste blades, which have recently received the most attention among renewable energy materials, the EU and representative wind power countries such as Germany and Denmark are paying great attention to the government and industry regarding waste disposal, especially recycling, and solutions to the problem. has been pursued and is now coming to fruition. Unlike the case of Korea, which is stuck with the solution of simple landfill, global renewable energy companies such as Siemens Gamesa of the United States and Germany and Vestas of Denmark, which are actively introducing the use of materials as cement, are developing new products that can recycle blades at the disposal stage from the beginning. We are making progress to the point where we are developing technology to manufacture materials and announcing our success and plans for zero waste by 2040.
In response to this situation, our government is not only reorganizing the basic laws for the recycling of waste wind blades, which are already causing environmental problems, but also establishing laws to promote research for technology development such as reuse and recycling, which are lagging behind Europe and the United States. Legal academia will conduct research on the limitations of the Producer Responsibility Recycling (EPR) system, which has already been introduced in the resource recycling law, and ways to overcome it, on the aspects of fiscal legislation such as the introduction of incineration taxes, and on local autonomy for cooperation with local communities. Efforts should be made to identify ways to improve the legal system.
Fenomena Gender Netral Di Kalangan Mahasiswa Dalam Prespektif Ilmu Psikologi Dan Agama Islam
Authors: Rama Ilham
Published: March 2024

Gender berasal dari bahasa latin "GENUS" yang memiliki arti jenis atau tipe. maka gender dapat diartikan sebagai jenis, Laki laki maupun perempuan. Namun, saat ini muncul sebuah fenomena gender netral, kondisi dimana seseorang tidak mengakui dirinya sebagai laki laki maupun perempuan. fenomena ini muncul dan diakui oleh salah seorang mahasiswa di salah satu universitas negeri di Indonesia. Tujuan dilakukan penelitian ini adalah untuk mengetahui faktor-faktor apa saja yang membuat seseorang mengakui dirinya memiliki gender netral menurut pandangan psikologi dan menurut pandangan agama islam. Sumber data dalam penelitian ini berupa manusia, peristiwa dalam masyarakat, atau hal lain yang menunjang penelitian ini. Dalam pengumpulan data kami melakukannnya melalui wawancara dan survey lebih lanjut.
STRATEGI KEMANDIRIAN MASYARAKAT MISKIN (STUDI KASUS PEMBERDAYAAN PROGRAM KELUARGA HARAPAN (PKH) DI DESA SIDOREJO KECAMATAN PADANGAN KABUPATEN BOJONEGORO)
Authors: Utari Sri , Saptaningtyas Haryani , Winarno Joko
Published: March 2024

Kemiskinan merupakan salah satu permasalahan utama di Indonesia. Program Keluarga Harapan (PKH) merupakan salah satu program pemerintah untuk membantu masyarakat miskin agar dapat mencapai kemandirian. Tujuan penelitian ini adalah untuk menganalisis strategi pemberdayaan PKH dalam meningkatkan kemandirian masyarakat miskin di Desa Sidorejo, Kecamatan Padangan, Kabupaten Bojonegoro. Penelitian ini menggunakan metode penelitian kualitatif dengan pendekatan studi kasus. Teknik pengumpulan data pada penelitian ini yakni wawancara, observasi dan Focus Group Discussion. Analisis data dengan metode ini meliputi tahap data reduction, data dispaly dan conclusion drawing/verification. Hasil penelitian menunjukan bahwa pelaksanaan PKH sudah berjalan dengan baik sesuai dengan yang telah ditetapkan oleh pemerintah. Program pendampingan peserta PKH mengarahkan peserta PKH untuk dapat mandiri dan pendapatkan kehidupan yang lebih baik lagi dengan tidak menggantungkan pada bantuan pemerintah. Namun banyak kendala yang menghambat pelaksanaan PKH di Desa Sidrejo secara optimal. Situasi di lapangan menunjukkan  banyak KPM PKH di Desa Sidrejo yang belum sepenuhnya memahami tujuan PKH, sehingga tujuan dari program PKH untuk meminimalisir kemiskinan belum tercapai
Standards of Adolescent Civilized Communication on Social Media
Authors: Siahaan Chontina , Adrian Donal
Published: March 2024

The current millennial generation uses more trending sentences to follow but is uncivilized. This is due to the enormous influence of the development of communication technology, namely the internet, and applied through the use of social media. The purpose of this study is to find out and explain the standards of civilized communication among adolescents on social media. Using qualitative research methods, inductive and constructivist paradigms, as well as collecting data through the field and virtual observations and in-depth interviews to produce valid research results. The results showed that civilized communication standards practiced by high school students in Jakarta were (a) answering questions quite briefly even though they interacted with parents, not giving forms of appreciation with the words mama or papa, (b) avoiding meeting other people face to face and prefer to use smartphones to communicate online, and (c) self-existence by uploading any kind of information on social media accounts and disseminating it.
DESIGNING DESIGNING A COMPANY PERFORMANCE APPRAISAL SYSTEM WITH THE BALANCE SCORECARD METHOD
Authors: Heru Winarno Heru , Syamsudin  , Syaina Azzahra  , Angga Baghaskara
Published: March 2024

AbstractIntense competition does not look at the size of a company, in order to be productive and innovate, requires the role and task of resources in the business field that lie in the ability to act according to the company's targets. Human resources have a very crucial role in a company. Without human resources, the company will not be able to run well in achieving its goals. Human Resource Management in its operation requires performance that must be developed, especially for service industries and services supported by the design of a measurable employee performance assessment system by applying the Balanced Score Card method. Companies certainly want steps and strategies in implementing the design of a performance appraisal system in an effort to maximize the company's role in order to run and compete competitively. The purpose of this research is to determine the design of a service company performance appraisal system using the Balanced Scorecard approach. The population and sample in this study are the Tribuana 1 Cooperative Primary Company. The method in this study is a qualitative descriptive approach using interviews and observations. The result of this research is the design of a Performance Appraisal system based on four perspectives contained in the Balanced Scorecard, the first is the financial perspective, which is used as a basis for the consequences of economic actions. The second perspective, the customer perspective, is a market segment where companies must adjust the level of satisfaction, loyalty, retention, and customer acquisition. The third perspective is the perspective of internal business processes, carrying out the process of measuring and innovating products to have added value, the fourth perspective is the perspective of growth and development, improving the quality of results, productivity and improving resource welfare.Keywords: Balanced Scorecard; Human Resource Management; Performance Appraisal
Sosialiasi Dokumentasi Dijital Virtual Reality Masjid Pathok Negoro Wonokromo
Authors: Hendro Trieddiantoro Putro  , Endang Setyawati
Published: March 2024

Through this activity, socialization of digital documentation has been carried out to community members at the Pathok Negoro Wonokromo mosque. Then, digital documentation of Virtual Reality was displayed, and questionnaires were filled out by 67 residents as an assessment and evaluation of the socialization of digital documentation at the Pathok Negoro Wonokromo mosque. The results of the questionnaire show that most people have known the Pathok Negoro Wonokromo mosque since childhood and agree that the Pathok Negoro Wonokromo mosque is the identity of the Islamic community, Javanese society, and is a symbol of the glory of the Sultanate of Yogyakarta. The community also agreed that through digital documentation that was broadcast, it had provided information about the culture and history of the Pathok Negoro Wonokromo Mosque. However, the community considers that the building details, colors, and details in the digital documentation that is broadcast need to be adjusted again to the conditions of the Pathok Negoro Wonokromo mosque. In addition, the results of the questionnaire also show that the community does not agree if the Pathok Negoro mosque is changed to a modern mosque.
Pendampingan Kelompok Wanita Tani Rahayu di Era Less Contact Economy
Authors: Yohanes Anton Nugroho  , Ari Zaqi Al Faritsy  , Ari Sugiharto
Published: March 2024

The occurrence of the Covid 19 pandemic and followed by restrictions on people’s activities caused a decrease in sales turnover for Kelompok Wanita Tani (KWT) Rahayu. Tempe sales had experienced a decline of up to 50%, as well as a decrease in processed products made from tempe. Reducing community activities requires a breakthrough to survive in the era of less economic contact. This community service program is carried out to provide socialization and assistance related to the development of online marketing, e-commerce, and the development of packaging that is acceptable to the market.
Peningkatan Minat Literasi Siswa/i Desa Limbungan dalam Menciptakan Keamanan Pendidikan
Authors: Muh. Ade Safri Salampessy  , Hidayat Chusnul Chotimah
Published: March 2024

One of the regions of Indonesia that has issues with educational fairness is the eastern region, particularly with the distribution of educators like teachers or tutors. The East Lombok Region's Limbungan Village is one of the places where this issue is present. So, Universitas Teknologi Yogyakarta’s Community Service Team chose it’s location as the focus of community service efforts to combat that problems. In this instance, the Community Service Team and Indonesia in Village worked together to carry out community service by focusing on educational issues through the "Suar Desa Adat Limbungan" program with the theme "Increasing Literacy Interest in Students of Limbungan Village in Creating Educational Security through the Concept of Human Security." This service activity comprises of five basic activities: Atraksi, Atraktif, Aksi, Selam, and Book Donation. It is believed that Limbungan Village would be able to address structural issues and other issues faced by local inhabitants as a consequence of community service activities.
Pembelian Properti Syariah di PT. Al Fath Land Ditinjau dari Pendapatan, Islamic Brand Image dan Preferensi Konsumen
Authors: Handayani Lilies , Risnawati Risnawati
Published: March 2024

Penelitian ini bertujuan untuk mendeskripsikan pengaruh secara parsial pendapatan, Islamic brand image dan preferensi konsumen terhadap keputusan pembelian Properti Syariah pada PT. Al Fath Land, mendeskripsikan pengaruh secara simultan pendapatan, Islamic brand image dan preferensi konsumen terhadap keputusan pembelian Properti Syariah pada PT. Al Fath Land. Waktu penelitian ini dilakukan pada bulan Juli 2023 hingga Agustus 2023. Jenis penelitian kuantitatif dengan pendekatan deskriptif kuantitatif. Data yang digunakan adalah bersumber dari data primer. Sampel data yang digunakan sebanyak 70 sampel dengan metode purposive sampling. Metode analisis yang digunakan adalah analisis regresi linear berganda dan teknik analisis data menggunakan aplikasi IBM SPSS version 20. Hasil penelitian ini menunjukkan bahwa secara parsial pendapatan tidak berpengaruh terhadap keputusan pembelian properti syariah pada PT. Al Fath Land, secara parsial Islamic brand image berpengaruh positif dan signifikan terhadap keputusan pembelian properti syariah pada PT. Al Fath Land, secara parsial preferensi konsumen berpengaruh positif dan signifikan terhadap keputusan pembelian properti syariah pada PT. Al Fath Land, secara simultan pendapatan, Islamic brand image dan preferensi konsumen berpengaruh positif dan signifikan terhadap keputusan pembelian properti syariah pada PT. Al Fath Land. Berdasarkan hasil penelitian di atas, implikasi pada penelitian ini menunjukkan bahwa varibel pendapatan, Islamic brand image dan preferensi konsumen memberikan kontribusi terhadap keputusan konsumen melakukan pembelian dan memberikan dampak yang baik untuk meningkatkan user pada PT. Al Fath Land.