bluuebunny/crossref_metadata_2025 huggingface dataset:
Estimation of energy to be supplied from an external source to heat or to compress alcohols (C3-C12) in gas phase
Authors: Franco Junior Moilton R.
Published: December 2024

In-process energy expenditure is cutting-edge research in the general field of energy application. In this paper, the amount of energy for heating or compressing a system in gas phase was estimated by using the thermodynamic equations. Firstly, the systems were chosen and among the alcohols, we used them from C3 to C12 to discuss the effect of number of carbons atoms in the chain. Secondly, the Peng-Robinson equation represented the pVT system behavior. Also, influences of the level in temperature and pressure was analyzed.
The results show that the energy expended for isobaric heating was very similar in value regardig the pressure range (1-20 atm). The number of carbons in the chain had significant influence on the heating result of alcohols, as well as in the solution of integral of pdV. For isothermic compression, when the process ocurred at low pressures (1 to 5 atm), the amount of spent energy was pratically constant for all alcohols studied. Furthermore, for the same pressure range, as the temperature increases, the energy required to compress increases. Because there is no influence of the pdV term, internal energy change could be considered as the same of spent energy in the process.
The main conclusions drawn from this work will be helpful for future development of of efficient equipment such as combustion engines.
Effect of Jerusalem artichoke syrup (Helianthus tuberosus L.) on the properties of fermented vegetable beverages
Authors: Montenegro María Margarita , Grzona Liliana Myriam , Carrizo Flores Roberto
Published: December 2024

This study aimed to evaluate the effect of prebiotics (Jerusalem artichoke syrup and commercial inulin) on the characteristics of Prunus dulcis var “Non Pareil” almond beverages, inoculated with probiotics (Streptococcus salivarius subsp. thermophilus and Lactobacillus delbrueckii subsp. bulgaricus). The inulin content obtained in the Jerusalem artichoke syrup was 2.25 grams of inulin per 100 grams of total fructans, in the sample at 7°Bx. The fermented products were evaluated for physicochemical, microbiological and sensory properties during cold storage (4°C) for 28 days. The fermented beverages with the addition of Jerusalem artichoke syrup showed higher acidity (lower pH value and higher lactic acid content), and higher density than the product made with commercial inulin.
The addition of Jerusalem artichoke syrup affected the textural parameters. The products showed less hardness, stickiness, gumminess and higher values of cohesiveness and elasticity than those made with commercial inulin.
The sample with the highest sensory preference was the one prepared with commercial inulin and a filtered vegetable beverage. The concentration of lactic bacteria remained higher in the samples with Jerusalem artichoke syrup with the same proportion of inulin than the samples with commercial prebiotic, during 21 days of storage under refrigeration.
КОМПЛЕКСНА ПАТОЛОГІЯ ПЕЧІНКИ, НИРОК, ПІДШЛУНКОВОЇ ЗАЛОЗИ У ДОМАШНІХ КОТІВ
Authors: Дубін Р. , Ананченко В. , Акімова А. , Івлева О.
Published: December 2024

Дослідження поліорганних патологій у домашніх кішок виявило поширення та частоту захворювань паренхіматозних органів, таких як печінка, нирки та підшлункова залоза. Результати показали, що захворювання печінки зустрічаються у 18,3% кішок, нирок – у 16,3%, а підшлункової залози – у 11,5%. Поліорганні патології виявлені у 28,7% досліджених тварин, зокрема, гепатонефрит виявлено у 16,7%, гепатопанкреатит – у 9%, а гепатопанкреонефрит – у 3% випадків. Серед нозологічних форм частіше діагностували гепатонефрит, хронічний гломерулонефрит, хронічний гепатит, жирову дистрофію печінки, та лише один випадок цирозу печінки. Для діагностики використовувалися клінічні, біохімічні та ультразвукові методи, що дозволило визначити патогенез захворювань, зважаючи на анатомічний та функціональний взаємозв'язок органів. Дослідження охоплювало 234 тварини різного віку та статі, що дозволило зробити значущі висновки щодо поширеності та характеру поліорганних патологій у кішок.
DISC FORAGE CROPPER
Authors: Uminsky S. , Knaub L. , Moskalyuk A. , Zhitkov S.
Published: December 2024

In the theoretical substantiation of the grinding process of crushed corn stalks in the working area of the disc grinder, the random stacking of particles of irregular shape in the average cross-section was considered. The principle of operation of the shredder consists in breaking pieces of the product in the working zone formed by the surfaces of the moving and stationary discs. At the same time, the intensity of grinding increases as the material moves from top to bottom in the decreasing working gap. The design of the disc feed shredder is substantiated, which will ensure a reduction in the metal content of the structure, and will allow the production of feed mixtures of a given granulometric composition.
УДОСКОНАЛЕННЯ ІСНУЮЧИХ ТА РОЗРОБКА НОВИХ РЕЦЕПТІВ КОРМОВИХ СУМІШЕЙ ДЛЯ ТЕЛЯТ ДО 6-МІСЯЦІВ
Authors: Різничук І. , Ємець З. , Ніколенко І. , Кишлали О. , Мажиловська К.
Published: December 2024

У статті зазначається, що традиційна система вирощування ремонтного молодняку великої рогатої худоби має суттєві недоліки, що стримують їх ріст, розвиток, впливають на подальшу молочну продуктивність: надмірно тривалий молочний період, перевитрата молочних кормів, обмежене згодовування комбікормів-концентратів, затримка періоду становлення жуйного типу травлення. У відповідності до вищеозначеного, за умови годівлі телят за сучасними схемами годівлі, більш раннього становлення жуйного типу травлення, запропоновано провести диференціацію комбікормів-концентратів для телят віком до 6 місяців, на комбікорми-концентрати для телят віком від 1 до 3 місяців, комбікорми-концентрати для телят віком від 3 до 6 місяців. Основу кормових сумішей для молодняку великої рогатої худоби до 6-місячного віку складають такі кормові матеріали та кормові добавки, як пшениця, кукурудза, ячмінь, макуха соняшникова, макуха соєва, хлорид натрію, бікарбонат натрію, олія рослинна. Різниця в годівлі тварин полягала в тому, що до складу комбікорму-концентрату для молодняку віком від 1 до 3 місяців включено білкову вітамінну добавку для телят віком від 1 до 3 місяців, для телят від 3 до 6 місяців - білкову вітамінну добавку для телят віком від 3 до 6 місяців. Білково-вітамінна добавка для телят віком від 1 до 3 місяців 5 % розроблена на основі 0,5 % преміксів для телят живою масою до 100 кг, білково-вітамінна добавка для телят віком від 3 до 6 місяців – на основі 0,5 % преміксів для молодняку великої рогатої худоби.
The development of an Investigable Questions Formulation Technique (IQFT) in open inquiry learning
Authors: Muhamad Dah Norsyazwani , Mat Noor Mohd Syafiq Aiman
Published: December 2024

Investigable questions are a fundamental element in open inquiry learning, which allow pupils to plan and implement an investigation by themselves. However, creating investigable questions is a complex process and requires a systematic approach. Therefore, this action research was conducted in an effort to improve teacher-researcher practice in guiding form one pupils to create their own investigable questions. This paper seeks to answer the following research question: How can teacher-researcher develop the Investigable Questions Formulation Technique (IQFT) in open inquiry learning to guide pupils to create investigable questions? IQFT, as an intervention developed in this study, comprises eight main steps, designed through two cycles, and involving the processes of: (i) planning action, (ii) taking action, (iii) collecting and analysing data and (iv) reflecting. Data collected included unstructured observations, photographs and pupils’ written works. Data were analysed narratively, by describing how teacher-researcher have developed IQFT in an effort of guiding pupils to create investigable questions in open inquiry learning. One of the main lessons teacher-researcher have learned as a result of designing and implementing this study is that the process of guiding pupils to create investigable questions needs to incorporate adequate training for pupils, especially when the teacher introduces new techniques such as IQFT to pupils. In addition, teacher-researcher have realised that a particular educational or pedagogical theory only serves as the basis of a teacher’s knowledge and needs to be adapted and modified according to the teaching context.
Criticism of KBAT and its successor's recommendations
Authors: Mohamad Zain Shaharir
Published: December 2024

After realising failures in previous imported approaches in mathematics educations, the latest attempt to improve the situation, the Ministry of Education once again adopted an imported brand of mathematical method of education, HOTS, translated into KBAT (Kemahiran Berfikir Aras Tinggi), which was originally created by Blooms more than fifty years ago. It is argued that any imported educational product which is not tailored to local needs and culture of education or in short, not properly indigenised before hand will definitely face a failure. This is even more relevan in the case where the product has been subject to severe criticism by the Western scholars themselves. Features of inappropriateness and criticisms of HOTS methodically by the Western scholars vis-à-vis of our culture are discussed in details. We also highlight some of the features in HOTS which are irrelevant to the exact nature of the solving methods and development of mathematics; and some features which do not facilitates the nature of mathematics that we ought to develope based on our own mould. Furthermore, since KBAT is envisaged to be implemented for sometimes, we also provide some suggestions for modifying HOTS in order to make it nearer to our cultural needs.
The effectivenes of KOBUNA in primary pupils’ rounding skill
Authors: Abdullah Nor Adibah
Published: December 2024

Rounding skill is one of the basic skills in numerical concepts which are taught since Year 1 using double digit numbers being rounded to the nearest tenth. The aim of this research was to identify the effectiveness of the use of teaching aid KOBUNA towards primary pupils’ rounding skill. This research utilised an action research design which applied the Kemmis & McTaggart (1988) model. 31 Year 1 pupils in a primary school in Keramat Zone, Kuala Lumpur participated in this study. The research instruments used for this research were the pre and post test sets as well as interview to identify the before and after effectiveness of the use of KOBUNA in rounding skill learning. Research findings showed that there was a huge number of pupils who had not achieved minimal level in the pre test however all of the students had achieved more than minimal level in the post test. There was a significant difference between pre and post test scores after using KOBUNA for rounding skill. Through the interview, the pupils expressed their excitement and interest in using KOBUNA in future lessons. KOBUNA use was found to be useful in improving primary school pupils’ mastery in rounding. This use of KOBUNA can be improved by using greater numerical digits and rounding place values to ensure an extensive use for other pupils at a higher level.
Construction of a Polygon Kit as a Teaching Aid in the Topic of Basic Polygons Form One
Authors: Fauzi Afiqah Fakhriah , Abdullah Mohd Faizal Nizam Lee
Published: December 2024

This study aimed to construct a Polygon Kit as a teaching aid in the topic of Basic Polygons Form One. This topic of Basic Polygons involving a subtopic of properties of triangles and the interior and exterior angles of triangles. The design of the research used is Design and Development Research based on the ADDIE model. Two mathematics lecturers from the Public University and high school mathematics teacher with more than ten years of teaching experience have been appointed to make the validity of the content of this Polygon Kit using the Expert Validity Form. This validity data were analyzed using the Percentage of Agreement. The result showed that the validity value was high which was 90%. In conclusion, the Polygon Kit had good validity. The implication is that the Polygon Kit can be used as an alternative teaching aid for teachers to teach subtopic of properties of triangles and the interior and exterior angles of triangles in the topic of Basic Polygons.
Геопоэтика Алтая в русской литературе XX – начала XXI вв.
Authors:   ФГБОУ ВО «АлтГПУ», Богумил Т. А.
Published: December 2024

Монография посвящена исследованию геопоэтического образа Алтая в контексте Сибирского текста русской художественной литературы XX – начала XXI веков. Описана художественная структурно-семиотическая модель Алтая в единстве природных и антропогенных составляющих: флоры (деревья), рельефа (горы), гидросферы (реки), образов дороги (Чуйский тракт), городов (Барнаул, Бийск, Змеиногорск), локальных сюжетов.
Адресуется филологам, культурологам и всем, кто интересуется историей русской литературы ХХ – начала XXI веков.
Exploiting PV System Performance: A Combined Approach Using MPPT, IoT, Cleaning, Cooling, and Neural Networks
Authors: Rawdhan Alaa Younus , Ahmed Mohammed Sh
Published: December 2024

This paper investigates the effects of three foremost methodologies—Maximum Power Point Tracking (MPPT), Internet of Things (IoT)-driven cleaning and cooling, and Neural Network Training (NNT)—on improving the efficacy of solar photovoltaic (PV) systems. Solar photovoltaic systems have considerable complications in sustaining maximum performance due to environmental conditions such as dust collection, temperature variations, and an insufficient energy management. A new control method is presented to challenge these difficulties, including MPPT, IoT-based cleaning and cooling, and NNT for the real-time optimization of PV systems. The simulation findings indicate a substantial increase in power production when both technologies are used together. Power generation is improved throughout a 24-hour period, especially during periods of low solar irradiation, by the coordinated use of MPPT, IoT, cleaning, and cooling techniques. The IoT-controlled technology enhances power production by 7–9% across many operating situations, especially in advantageous geographic settings, while simultaneously decreasing energy consumption. NNT dynamically modifies system settings in real-time, exceeding conventional optimization methods. The results underscore the potential of MPPT, IoT, cleaning, cooling, and NNT to markedly enhance the efficiency and productivity of solar PV systems, tackling the primary concerns of dust collection, elevated temperatures, and suboptimal energy management.
Effective Energy Management System in Microgrid Employing Model Predictive Controller
Authors: Banka Sujatha , Kumar D. V. Ashok
Published: December 2024

The primary focus of this study is to develop an energy management system that regulates the energy transfers between the hybrid microgrid system and the loads connected to it, and the grid via MATLAB/Simulink so as to model the flow of energy. The secondary aim is to make recommendations aimed at the charging and discharging of what is referred to as the hybrid energy storage system (HESS). The results indicate that the proposed algorithm successfully carried out the required task of bridging the HESS charging to discharging ratio in relation to the different operating conditions as well as power management between the microgrid and the network. In this application, a stronger charging power might be employed on the HESS. It has been seen that the HESS is more likely to complete charging within a short time than the greater charging power. A more advanced and efficient energy management system is critical to the microgrid system so that the generation can keep pace with the requirements of the load profile. It is important to take account of load forecasting with regard to power planning and executing so as to know the most suitable action that should be taken. To achieve a general reduction in the cost of operation, in this paper, we propose the use of an advanced Energy Management System (EMS), Model Predictive Control (MPC), to effectively manage the allocation of power in the microgrid.
Contributions on the Use of Dynamic Absorbers in a Vehicle Engine
Authors: Carmen Bălcău Monica , Felicia Cristea Aurora
Published: December 2024

In the study presented in the paper, a theoretical calculation will be made regarding engine vibration dampers. These will be validated with the experimental model. These validations bring results in static and dynamic balance through the reduction of torsional vibrations in the engine. Torsional vibrations are caused by various factors as well as engine operating conditions. The paper focuses on the reduction of torsional vibrations from a theoretical and experimental point of view. Therefore, in this study, a dynamic absorber was considered which was integrated into the system considered by the paper and was analyzed both from the point of view of its static and dynamic behavior.
Intelligent Car Park Assist Using Fish Swarm Algorithm
Authors: Kazarlis Spyridon A.
Published: December 2024

In this paper a novel Intelligent Car Park Assist System is presented that uses an Evolutionary Computation method called “Fish Swarm Algorithm” or FSA, inspired from the behavior of schools of fish. The work focuses on the “parallel park” problem where a car needs to park between two already parked cars with a gap between them. The modeled car adopts the Ackermann model for moving, and has to complete the park task in 3 moves. Every move consists of steering the wheel at an angle and moving the car at a specific distance. For finding the optimal car moves to park successfully, a paradigm of the FSA algorithm is used. Simulation results confirm both the modelling soundness and the optimization capabilities of the FSA method.
Csokonai anyagi helyzetéről
Authors: Orbán László
Published: December 2024

The figure of Csokonai appears to both contemporaries and posterity as a genius but impoverished poet. The only known job of the ‘poor poet’ was that of a teacher’s assistant, but he did not accept any income for his work. Several similar financial events in his life raise the question: why did he not take a regular job with a steady income, why did he give up the idea of an independent civil existence? These questions shed light on a financially difficult and seemingly contradictory life since Csokonai was able to live an independent, free, creative life in spite of all this. In line with the findings of the most recent monograph, this essay is shows that Csokonai’s career was financially supported primarily by his mother, Sara Dioszegi.
Analysis of Fatal Blunt Force Head Injuries in cases of Road Traffic Accidents- A study from Civil Hospital, Ahmedabad
Authors: Prabhakaran Selvam  , Dominic Infant Raj  , Joshiyara Rajeshkumar Vithtalbhai  , Vijayaragavan Murugesan  , Rathva Vanraj Kesaribhai  , Patel Maulik Shaileshkumar
Published: December 2024

Road traffic accidents are a leading cause of death and disability worldwide, with significant implications in India due to its vast and diverse population. Post-mortem studies provide crucial insights into the epidemiology, causes and characteristics of fatal head injuries, informing prevention and management strategies in case of road traffic accidents. This study aims to analyse the epidemiological profile of head injury cases subjected to post mortem, identifying patterns in demographic factors, causes of injury and anatomical characteristics of blunt force head trauma. In this study, analysis was done for blunt force head injury in road traffic accident cases brought to the mortuary of Civil Hospital, B.J Medical College, Ahmedabad, over a one year period from January to December (2019). Among 1138 cases of road traffic accidents, 847 cases with head injury were selected. Data on age, gender, cause of injury, type and location of blunt force head trauma and associated injuries were collected, analysed and compared with other similar studies. Of 847 head injury cases, majority were males and age group of  21 – 40 Years. 43 % of study population died within 1 hour. Predominantly two wheeler’s were involved in RTA and without safety measures. 43.5% of cases showed laceration as external injury and 53.4% of study population showed linear fracture of skull. This study on blunt head injury cases reveals critical epidemiological trends, emphasizing the need for enhanced road safety measures and public awareness. The findings underscore the importance of targeted prevention strategies and improved trauma care to reduce fatalities from head injuries in India.
Pengembangan Media Web Google Sites Berbasis Project Based Learning untuk Siswa SMA Kelas X
Authors: Indah Dwi Lestari  , Wiwi Noviati  , Marlina Novita
Published: December 2024

Kegiatan pembelajaran di kelas menggunakan media pembelajaran berbasis websites yang dikembangkan oleh guru di sekolah tersebut belum pernah digunakan, sehingga media pembelajaran yang digunakan hanya mengandalkan buku paket sekolah. Tujuan penelitian ini adalah untuk: 1) mengembangkan media web Google Sites berbasis Project Based Learning (PjBL) untuk siswa kelas X. 2) mengetahui kelayakan dari media web Google Sites berbasis Project Based Learning (PjBL) untuk siswa kelas X. Penelitian ini menggunakan jenis penelitian Research and Development (R&D) yang mengacu pada model ADDIE (Analyze, Design, Development, Implementation, Evaluation). Subjek dari penelitian ini yaitu dua dosen dari FKIP Universitas Samawa sebagai ahli validasi materi, validasi ahli media, dan validasi ahli praktisi guru biologi kelas X SMA Negeri 3 Sumbawa Besar. Sedangkan subjek uji coba pada uji coba terbatas yaitu 10 orang siswa kelas X SMA Negeri 3 Sumbawa Besar. Teknik pengumpulan data penelitian ini menggunakan angket validasi ahli dan angket respon siswa. Data yang dikumpulkan kemudian dianalisis secara deskriptif kualitatif dan kuantitatif. Hasil dari penelitian menunjukkan bahwa penilain oleh para ahli yaitu, ahli materi diperoleh rerata 92,85% dengan kategori sangat layak, ahli media diperoleh rerata 86% dengan kategori sangat layak, dan ahli praktisi diperoleh rerata 100% dengan kategori sangat layak. Sedangkan hasil dari uji coba terbatas diperoleh rerata 88% dengan kategori sangat layak. Dengan demikian, media web Google Sites berbasis Project Based Learning (PjBL) sangat layak digunakan dalam proses pembelajaran.
РАСЧЕТ ВРЕМЕНИ ИСТЕЧЕНИЯ ВОДОРОДА ИЗ БАЛЛОНА ДЛЯ ОПРЕДЕЛЕНИЯ ХАРАКТЕРИСТИК АВАРИЙНОЙ ВЕНТИЛЯЦИИ
Authors: Г.Т. Земский , А.В. Ильичев , Д.В. Долгих , Н.В. Кондратюк
Published: December 2024

Выполнены расчеты по определению времени истечения водорода и смеси водорода с углекислотой из баллонов емкостью 0,04 м3 при различном начальном давлении газа через отверстия различного размера. Выявлены закономерности влияния различных параметров на время истечения газов. Показано, что при некоторых условиях можно избежать давления взрыва газовой смеси свыше 5 кПа в случае разгерметизации баллона с газом.

When determining the room category by explosion and fire hazard, it is assumed that all the contents of the device, cylinder or other equipment completely go into the room, mixed with air, then the mixture explodes. Such a scenario is found the most dangerous. If the room is equipped with emergency ventilation activated by a signal from a fast-acting gas analyser, it is allowed to reduce the mass of flammable gas or vapour when calculating the explosion pressure. When gas in high pressure equipment enters the room, the time of entry depends on the gas quantity, pressure and other properties of the gas. The regulatory documentation for fire safety does not provide recommendations on calculating the gas discharge time from the equipment of the final volume, accompanied by pressure decrease. The purpose of this work is to estimate the gas discharge time from industrial cylinders with a capacity of 0.04 m3 depending on various factors. The task of the work is to calculate the K coefficient in the formula for determining the required air exchange rate of emergency ventilation. To solve this problem, there is considered the discharge of several combustible gases from cylinders with a volume of 0.04 m3 through holes of different diameters at different values of initial gas pressure. It is shown that when hydrogen flows out of a cylinder with an initial pressure of 20 MPa through a hole with a diameter of 4 mm, which corresponds to the full opening of the valve, the discharge time is 26 seconds, and when discharging under the same conditions through a hole with a diameter of 1 mm, the discharge time increases up to 346 seconds. In order to determine the possibility of protecting a room with hydrogen cylinders from an explosion of a hydrogen-air mixture, there were made calculations of explosion pressures values depending on the volume of the room. There are established conditions for the use of emergency ventilation to ensure explosion safety in an accident with a gas cylinder. In order to reduce the explosion pressure for this room to 5 kPa, it is necessary to increase the discharge time up to 300 s (5 minutes). Two ways to increase the flow time are considered: reducing the size of the hole (by inserting a washer into the cylinder valve) and preliminary dilution of combustible gas with incombustible gas when filling the cylinder. It is possible to use both methods at the same time to increase the gas discharge time from the cylinder.
Scene Continuity in Building The Message of The Song in “Jiwa Yang Bersedih” Music Video
Authors: Sanjaya William
Published: December 2024

A music video is a short film used to accompany a song. "Jiwa Yang Bersedih" is a music video that tells the story of a woman's struggle with sadness and her vulnerability in seeking happiness. "Jiwa Yang Bersedih" music video has the application of continuity of content, movement, position, and time in each series of images. These continuities help show the message in the story through each scene shown. This research was conducted to discuss the application of continuity in each shot in building the message of the song in "Jiwa Yang Bersedih" music video. The research method used is qualitative. Meanwhile, the approach used is purposive sampling, namely by taking samples as a description of the research material. The theory used for discussion is continuity theory explained by Blain Brown. From the research that has been carried out, it is concluded that there is application of continuity of content, position, and time throughout the scene. Meanwhile, continuity of movement only applies to scenes 1, 4, 5, 10 and 11. On the other hand, discontinuity in content, position, and time occurs in several scenes. These discontinuities disrupt the storyline, causing an acceleration in the character's actions in a scene. Furthermore, a discontinuity that is not consistent between shots in each scene could mislead the viewers from the original storyline. Meanwhile, continuity shows the storyline about Ghea's struggle to find happiness through her shadow.
Environmental Visual Concept of Hybrid Animated Film ‘Si Dulang’ For Fine Dining Projection Mapping
Authors: Rahmi Dila Febriyana , Lukmanto Christine Mersiana , Rahmiaty Siti Adlina
Published: December 2024

Technology and animation are the combinations that complete each other. It would be interesting to see how culinary cuisine comes into play in between. The research journey on how to enhance the immersive experience in fine dining with a projection mapping on a table by using a video projector to map hybrid animation has broadened the cutting-edge digital art and industrial area. In creating an immersive environment that complements Indonesian food and is tailored to the themes, ideas, and concepts, this research objective is focused on the environmental visualization concept of an animated film called ‘Si Dulang’, which is heavily impacted by Bali cultural aspects and based on famous attractions in Bali. Literature studies and observations of various projection mappings will be used as a research method to achieve a prototype of the animated film and environmental visual concept. The result is following the concept designed from the beginning although there are improvements in the composition arrangement. Therefore, it takes several tries to find the appropriate size of the object projected from the projector.
An Overview of Selected Visual Illustrations in Elementary Literatures of Globalight Book Publishers, Ibadan, Nigeria
Authors: Funmilayo Adesile Mercy
Published: December 2024

Improving elementary education is no doubt, key to attaining and sustaining a meaningful learned, and egalitarian society. Its fundamentals are embedded in the affective domain with a thrust in visual cognition, significantly in early childhood education. Affective illustrations particularly in pictures are argued to speak more than a thousand words. Interestingly, this assertion is presumably responsible for why Nigerian elementary books were proliferated with illustrational pictures in contemporary times. A development that is not only welcoming but has come to stay in Nigerian elementary education, owing to its value in terms of pupils' comprehension and illumination. As such, this paper examines selected books published by Globalight, Ibadan. The method adopted is bibliographical, shortlisting six of its plethora of publications to critical visualization; particularly from external, internal, topographical, and illustrational standpoints using design principles. The finding revealed adequacy of design elements, through some improvement, will go a long way in stimulating pupils’ learning potentials and tendencies.
Media Sosial sebagai Alat Peningkatan Efektivitas Kampanye: Analisis Pengaruh Engagement, Brand Awareness dan Purchase Intention
Authors: Nikita Viola
Published: December 2024

Penelitian ini menganalisis peran media sosial sebagai alat meningkatkan efektivitas kampanye dalam meningkatkan engagement dalam brand awareness dan purchase intention terhadap perilaku konsumen. Di era pemasaran yang modern ini, media sosial menjadi alat utama untuk berinteraksi langsung dengan audiens, mempromosikan produk, dan menjalin hubungan lebih dekat dengan pelanggan. Salah satu cara meningkatkan brand awareness Fadalah melalui promosi atau kampanye, yang memperkenalkan produk atau brand kepada masyarakat. Dengan menggunakan metode penelitian kuantitatif yang melibatkan Gen Z dan milenial untuk mengeksplorasi bagaimana interaksi pengguna platform media sosial mempengaruhi engagement dalam brand awareness dan purchase intention.
Haltande äktenskap och skilsmässor
Authors: Pålsson Lennart
Published: December 2024

Beskrivning saknas.
Rättsförhållandet mellan hyresvärd och hyresgäst
Authors: Lejman Fritjof
Published: December 2024

Beskrivning saknas.
Application of Response Surface Methodology (RSM) for Optimizing the Food Grade Bio Lubricant
Authors: Mohd Kamaldin Nurul Nadiah , Mahat Mohamad Mazwan , Abdul Hamid Ahmad Hussein , Lokman Amirul Hamizan
Published: December 2024

With growing global concerns about the production of environmentally friendly lubricants, efforts to develop vegetable oil-based alternatives to mineral oil-based lubricants are gaining growth. However, the properties of vegetable oil-based lubricants such as poor low-temperature behaviour, low oxidative stability and poor thermal stability are concerning for industrial gear lubricant applications. Although the number of researches of using vegetable oil-based as an alternative lubricant, the scientific research for industrial gear oil application have not been studied adequately. As a result, the purpose of this study is to investigate the friction coefficient and wear rate of the blended oil using a pin-on-disc test experiment and then compare it to food grade oil, with the hope that the findings will assist the food industry in improving their machinery. Response Surface Methodology (RSM), a Box- Behnken Design approach, has been employed to optimize the lubricant characterization based on the results. The effects of three independent variables—load, speed, and additive concentration—on the coefficient of friction and wear rate have been investigated in this study. The number of tests has been reduced to 15 using this RSM methodology. At the speed of 600 RPM, 30 N load and 30% concentration concluded the lowest predicted wear rate was -38.1986 m3 /m. These results showed that blending palm oil with gear oil can increase the development of biodegradable and environment-friendly lubricants without concerns about downgrading the tribological performance.
The Analysis of Building Thermal Comfort based on Air Flow Pattern by using SIMSCALE Simulation
Authors: Miptahul Hajji Apif , Yusriawan Whildan , Ariestadi Dian , Yue Huang
Published: December 2024

Thermal condition is one of the most important elements of comfort, which can affect people’s activities and working circumstances. Thermal comfort in a room can be controlled by improving the quality of ventilation and designing air flow. This study aims to determine the thermal comfort of a building by using simulation. The data used are building design specification, air temperature, and air flow pattern. The simulation input variables are the 3D model of the room design, maximum and average air temperatures and average air flow velocity values. The expected simulation output are air temperature contour data and air flow patterns. These two values of output are then compared with Indonesia’s national standard SNI 03-6572-2001 and subjective reactions to determine comfort in the rooms. The results show that based on the air temperature contour, the wider the room the air temperature tends to be in a comfortable condition. It also shows that the ratio of the opening area to the floor area can influence the cooling of the air temperature in the room. Based on the flow pattern air, openings facing each other in a room will improve air circulation and it is influenced by the ratio of the area of the opening to the area of the room. The research results show that air temperature contours and air flow patterns can be a reference for determining thermal comfort in a room. Regarding the output of simulation, it is recommended that the energy savings calculations need to be carried out to find out how much impact the building's natural ventilation performance has on electrical energy use.
Rice Bran Oil as Emerging Green Fuels: Exploration on Combustion Behaviours of Single Cylinder Diesel Engine (Light-Duty Engine)
Authors: Mohamed Norhafana , Ihsan Che Ku , Noor Muhamad Mat , Hairuddin Abdul Aziz , Indra Mahlia Teuku Meurah , Kadirgama Kumaran , Ramasamy Devarajan , Samykano Mahendran , Ghazali Mohd Fairusham , Rahman Md Mustafizur
Published: December 2024

In the current work, an experiment was conducted to examine the combustion properties of a single cylinder compression ignition direct ignition engine fuelled with rice bran oil at different engine loads. The investigation focused on the analysis of cylinder pressure and exhaust gas temperature as key factors in combustion. The fuel blends utilized in this study consist of various proportions of diesel and rice bran oil, including 100% pure diesel (RBO00), a blend of 25% rice bran oil and 75% pure diesel (RBO25), a blend of 50% rice bran oil and 50% pure diesel (RBO50), a blend of 75% rice bran oil and 25% pure diesel (RBO75), and 100% rice bran oil (RBO100). Comparisons are made between the results of an experiment using rice bran oil (RBO25, RBO50, RBO75, and RBO100) and a diesel engine (RBO00). RBO00 exhibits a greater heat output per unit mass compared to RBO25, RBO50, RBO75, and RBO100 blends because of the highest value of calorific value (CV) among others blends. Consequently, RBO00 demonstrated a higher measurement of exhaust gas temperature (EGT). One further contributing factor was the increased exhaust gas temperature (EGT), which led to an extended ignition delay, resulting in a lengthier fuel combustion process and the egress of combustion gas from the combustion chamber at higher temperatures. RBO100 achieved the highest cylinder pressure in both 50 % and 100 % engine load settings. The RBO100 blends fuel successfully achieved the optimal cylinder pressure in both 50 % and 100 % engine load conditions. The cylinder pressure for RBO00 (pure diesel) was the lowest at both half and full loads. The observed decrease in peak pressure can be attributed to the decreased cetane number (CN) and oxygen concentration found in RBO00 in comparison to the mixed fuels of RBOs. This will affect the completion of combustion such as wear and tear for the cylinder and piston. Under both 50 % and 100 % engine load condition, the cylinder pressure for RBO00 (pure diesel) was the lowest. In summary, rice bran oil showed superior combustion behaviour compared to pure diesel, and the mixture blends RBO75 and RBO100 can be thought of as ideal in terms of exhaust gas temperature and cylinder pressure.
An Experimental Investigation of the Effect of Phase Change Material and External Reflectors on the Performance of a Single Slope Still
Authors: Mohammed Omar Abd Ul-Qader , Flayh Ayser Muneer , Hamad Faik
Published: December 2024

Solar stills are widely recognized as a cost-effective and eco-friendly solution for transforming brackish water into potable water. Although solar energy shows promise, it has yet to be widely adopted due to its lower productivity. This paper presents an experimental investigation to enhance the performance of a single slope solar still using phase change material (PCM) and external reflectors. Many outdoor experiments have been conducted for three cases including: solar still without PCM, Solar still with PCM, and solar still with PCM with external reflectors. Also, the effect of water depth inside the still is examined. The performance of the four cases is evaluated and compared under the meteorological conditions of Baghdad City, Iraq. The results showed that using the PCM improved the Accumulated yield of the conventional solar still by 23% and 14 % for water depths of 2 cm and 3 cm, respectively. Also, the results revealed that using the external reflectors improves the Accumulated yield by 15% for the still with PCM, respectively.
Investigation of the Effectiveness of Small Scale Solar Updraft Tower using Solar Simulator
Authors: Saadun Mohd Noor Asril , Che Sidik Nor Azwadi , Mohd Rosli Mohd Afzanizam
Published: December 2024

Unique solar thermal system comprises a solar updraft tower (SUT) power plant. Numerous outdoor experiments are conducted, but they have a number of drawbacks, including the necessity for a lengthy setup period, a substantial financial investment, the possibility that the results may be affected by the weather, and the inability to manipulate the ambient factors. In this study, a laboratory-scale prototype with a square collector measuring roughly 2.27 m2 and a chimney height of 1.5 m was built. This research focuses on finding many essential parameters for a solar updraft tower system by giving a time-dependent real-time sensor readout. With the help of the internet of things (IoT), measuring and monitoring applications underwent pilot testing. The results indicate that as solar energy increases, the collector and chimney temperature and updraft velocity will also increase. Experiments conducted aided in the comprehension of the thermodynamic properties of the solar chimney power plant, serving as the foundation for the construction of a large-scale solar chimney power plant.
The Comparative Study on the Influence of Inorganic Soil Amendment on the Growth and Leaching Analysis of the Brassica Family
Authors: Sazali Norsuhailizah , Sazali Norazlianie , Harun Zawati , Ismail Anuar , Junaidi Afdhal , Widiastuti Nurul , Fansuri Hamzah , Gunawan Triyanda , Hartanto Djoko
Published: December 2024

Research on the positive effects of inorganic soil amendments in the agricultural sector has been steadily increasing to demonstrate their impact on plant development and the reduction of leaching. In this study, kaolin, metakaolin, zeolite, and perlite, which operate as inorganic soil amendments, were mixed with soil to determine their effectiveness in promoting Brassica growth and reducing the leaching of nitrite and nitrate. Seven alternative treatments; control standard (SS), control low (SL), 3g kaolin (3gK), 3g metakaolin (3gM), 3g zeolite (3gz), 5g of zeolite (5gZ), and 5g of perlite (5gP), were chosen to assess their effectiveness in the growth and reducing leaching in Brassica family (mustard green and kale). All the experiments were conducted in a greenhouse. According to the statistical analysis one-way ANOVA by comparing the mean, zeolite amended soil showed a higher significance difference in mustard green and kale growth analysis at harvest 1 and harvest 2 compared to other treatments. Kaolin, metakaolin, and perlite also showed slightly greater significance differences in mustard green and kale growth compared to the standard and low NPK treatments. In the leaching investigation, kaolin, metakaolin, zeolite, and perlite exhibited the lowest concentration of nitrate and nitrate compared to both standard NPK and low NPK. As demonstrated by the findings, inorganic soil amendments show the potential to improve the growth of mustard green and kale which also reduces the concentration of nitrate and nitrite, especially when using zeolite.
Optimalisasi pembelajaran melalui pendampingan pembuatan media multilingual di SDK Joge
Authors: Bani Delsiana Ina , Noge Maria Desidaria , Watu Maria Fransiska
Published: December 2024

Kegiatan pendampingan pembuatan media pembelajaran multilingual di SDK Joge bertujuan untuk meningkatkan minat baca dan kemampuan berbahasa siswa melalui penggunaan tiga bahasa: bahasa Indonesia, bahasa Inggris, dan bahasa daerah. Pendampingan ini penting untuk menciptakan lingkungan belajar yang mendukung perkembangan literasi siswa. Peranan guru sangat signifikan dalam membantu proses pembelajaran agar materi yang disampaikan dapat dipahami secara optimal. Guru tidak hanya berfungsi sebagai pengajar, tetapi juga sebagai inspirator bagi siswa. Media pembelajaran multilingual yang dibuat mencakup gambar-gambar yang diberi label dalam tiga bahasa untuk meningkatkan pengetahuan dan keterampilan berbahasa siswa. Metode pendampingan yang digunakan terdiri dari tiga tahap: persiapan, pelaksanaan, dan evaluasi. Hasil menunjukkan bahwa siswa sangat antusias dan menunjukkan peningkatan dalam pemahaman bahasa. Media multilingual ini juga mendapat apresiasi dari pihak sekolah karena meningkatkan interaksi dan partisipasi siswa dalam proses pembelajaran.
Penerapan pupuk organik cair YGO melalui penyuluhan untuk meningkatkan produksi padi di Desa Libunio
Authors: Soli Maria Goreti , Nenu Elisabeth , Mamo Yuliana , Fole Fabianus Rolando , Wani Bernabas , Juita Angelina Kurnia , Dolo Fransiskus Xaverius
Published: December 2024

Kegiatan ini bertujuan untuk meningkatkan produksi padi di Desa Libunio, Kecamatan Soa, melalui penerapan pupuk organik cair YGO. Petani di desa ini menghadapi masalah ketergantungan tinggi pada pupuk anorganik, kelangkaan pupuk menjelang musim tanam, dan harga pupuk yang mahal. Untuk mengatasi hal ini, dilakukan penyuluhan dan demonstrasi mengenai penggunaan pupuk organik cair YGO, yang dikenal ramah lingkungan serta mampu meningkatkan kualitas tanah dan hasil panen. Metode pelaksanaan mencakup wawancara dan survei untuk memahami kondisi lapangan, dilanjutkan dengan penyuluhan kepada petani serta demonstrasi langsung tentang cara membuat dan mengaplikasikan pupuk cair YGO. Hasil evaluasi menunjukkan peningkatan pengetahuan petani terhadap manfaat dan cara penggunaan pupuk organik, serta perbaikan pada kualitas tanah dan pertumbuhan padi setelah penggunaan pupuk YGO. Keberhasilan program ini ditandai dengan peningkatan pemahaman petani dan partisipasi aktif dalam mengurangi ketergantungan terhadap pupuk kimia. Program ini diharapkan dapat menjadi solusi jangka panjang bagi pertanian berkelanjutan di Desa Libunio dan meningkatkan produktivitas padi secara signifikan.
Sosialisasi dalam meningkatkan kesadaran masyarakat untuk menjaga lingkungan hidup di Desa Sei Paken
Authors: Feronika Ferra , Wahyuni Hamey Tri
Published: December 2024

Artikel ini membahas tentang pelaksanaan program kuliah kerja nyata yang dilakukan oleh mahasiswa institut Agama Kristen Negeri Palangka Raya di Desa saya Paken, yang berfokus pada meningkatkan kesadaran masyarakat dalam menjaga lingkungan hidup. Metode yang digunakan dalam kegiatan ini yaitu sosialisasi, dengan teknik pengumpulan data seperti observasi, wawancara dan dokumentasi. Hasil kegiatan ini menunjukkan bahwa program ini berhasil meningkatkan partisipasi masyarakat dalam menjaga kebersihan lingkungan, dengan masyarakat mulai aktif dalam kegiatan bersih-bersih dan menerima tempat sampah yang disediakan. Kegiatan ini merekomendasikan perlunya kerjasama yang lebih erat antara pemerintah desa dan masyarakat, serta penyelenggaraan program edukasi berkelanjutan untuk memastikan keberlanjutan upaya pelestarian lingkungan di masa depan.
MENINGKATKAN KEMAMPUAN MOTORIK HALUS MELALUI KEGIATAN KOLASE SEDERHANA DARI BAHAN BEKAS PADA ANAK KELOMPOK A TK IT BAITUSSHAKLIHIN ULEE KARENG, BANDA ACEH
Authors: Sarianti  , Amalian Yuli
Published: December 2024

Penelitian ini dilatarbelakangi oleh pengamatan dan pengalaman peneliti, bahwa dalam kompetensi bidang kemampuan motorik halus anak didik TK IT Baitusshalihin Ulee Kareng Banda Aceh relatif masih rendah. Penelitian ini bertujuan untuk mengetahui seberapa besar peningkatan kemampuan motorik halus anak melalui kegiatan kolase sederhana dengan kapas. Metode penelitian ini menggunakan penelitian tindakan kelas dengan subyek penelitian anak kelompok A TK IT Baitusshalihin Ulee Kareng Banda Aceh tahun pelajaran 2023-2024 yang berjumlah 24 anak, terdiri dari 13 anak perempuan dan 11 anak laki-laki. Analisis data yang digunakan adalah analisis deskriptif kualitatif, yaitu dengan membandingkan ketuntasan belajar anak antara waktu sebelum dilakukan tindakan dan setelah dilakukan tindakan. Hasil penelitian ini menunjukkan bahwa kegiatan kolase sederhana dari kapas dapat meningkatkan kemampuan motorik halus pada anak kelompok A TK IT Baitusshalihin Ulee Kareng Banda Aceh tahun pelajaran 2023-2024. Berdasarkan simpulan hasil penelitian ini disarankan : Bagi guru hendaknya semaksimal mungkin menciptakan suasana pembelajaran yang menyenangkan bagi anak, salah satunya melalui kegiatan kolase sederhana dari kapas untuk meningkatkan kemampuan motorik halusnya. Bagi sekolah hendaknya dapat menyediakan sarana yang dapat mendukung pembelajaran di kelas, berupa media pembelajaran dan alat peraga yang menarik.
 
Kata kunci: Kemampuan motorik halus, kegiatan kolase sederhana dari kapas