bluuebunny/crossref_metadata_2025_split huggingface dataset:
Upaya Peningkatan Motivasi Belajar Peserta didik Dengan Penggunaan Video TikTok Pada Mata Pelajaran IPA
Authors: Hartini Puji 
Published: June 2023

Kondisi pandemi Covid-19 memberikan dampak yang luar biasa terhadap pola belajar dan motivasi belajar peserta didik. Kemerosotan motivasi belajar peserta didik nampak semakin meningkat sejak awal terjadinya pandemi dan diberlakukannya kebijakan Pembelajaran Jarak Jauh (PJJ), hal ini terlihat pada partisipasi belajar peserta didik yang semakin sedikit bahkan mencapai 5/23 peserta didik yang ikut berperan aktif dalam pembelajaran daring, 17/23 peserta didik tidak mengikuti pembelajaran dengan berbagai latar belakang yang mempengaruhi. Tujuan penelitian ini adalah untuk mendeskripsikan motivasi belajar peserta didik pada mata pelajaran IPA di SMP Makna Bakti dengan pemanfaatan video Tiktok pada materi system reproduksi. Jenis penelitian yang digunakan adalah penelitian kualitatif deskriptif dengan teknik pengambilan data menggunakan analisis dokumen dan wawancara. Subjek penelitian ini adalah 23 peserta didik pada kelas 9.4 di SMP Makna Bakti Jakarta. Hasil penelitian berdasarkan analisis dokumen menunjukan bahwa ada peningkatan motivasi peserta didik dilihat dari partisipasi peserta didik dalam mengikuti pembelajaran IPA secara daring mencapai angka 100% dari keseluruhan peserta didik dibandingkan dengan tahun ajaran sebelumnya, sedangkan hasil wawancara menunjukan adanya ketertarikan yang luar biasa dari peserta didik pada video Tiktok yang disajikan serta memicu motivasi belajar IPA dilihat dari partisipasi peserta didik dalam mengumpulkan tugas belajar pada Google Classroom. Hasil tersebut dapat dijadikan pertimbangan oleh guru dalam menyajikan materi dengan kemasan menarik yang disesuaikan dengan kondisi uptodate peserta didik
PENGARUH STRATEGI PEMBELAJARAN DAN GAYA KOGNITIF TERHADAP HASIL BELAJAR ADMINISTRASI INFRASTRUKTUR JARINGAN SISWA KELAS XI & XII JURUSAN TEKNIK KOMPUTER DAN JARINGAN DI SMK MUHAMMADIYAH 1 JAKARTA
Authors: Muttaqin Ikhwan 
Published: June 2023

Penelitian ini bertujuan untuk menganalisis pengaruh strategi pembelajaran dan gaya kognitif terhadap hasil belajar administrasi infrastruktur jaringan siswa kelas XI dan XII Jurusan Teknik Komputer dan Jaringan SMK Muhammadiyah 1 Jakarta. Sampel dalam penlitian ini adalah 102 orang siswa kelas XI dan XII Jurusan Teknik Komputer dan Jaringan di SMK Muhammadiyah 1 Jakarta. Data penelitian berupa soal hasil belajar administrasi infrastruktur jaringan, strategi pembelajaran dan gaya kognitif menggunakan kuesioner. Metode yang digunakan dalam penelitian ini adalah metode survey dengan teknik analisis jalur (Path Analysis). Berdasarkan hasil penelitian diperoleh kesimpulan bahwa (1) 31 = 0,207, thitung = 1,767 dan p-value = 0,080/2 = 0,004 < 0,05 yang berarti “bahwa terdapat pengaruh langsung positif strategi pembelajaran (X1) terhadap hasil belajar administrasi infrastruktur jaringan (X3)” diterima atau teruji. (2) 21 = 0,604, thitung = 1,767 dan p-value = 0,084/2 = 0,042 < 0,05 yang berartji “bahwa terdapat pengaruh langsung positif gaya kognitif (X2) terhadap hasil belajar administrasi infrastruktur jaringan (X3)” diterima atau teruji. (3) 32 = 0,205, thitung = 1,767 dan p-value = 0,000 < 0,05 yang berarti “bahwa terdapat pengaruh langsung positif strategi pembelajaran (X1) terhadap gaya kognitif (X2)”. diterima atau teruji.

This study aims to analyze the effect of learning strategies, and cognitive styles on learning outcomes of network infrastructure administration for class XI and XII students of the Department of Computer Engineering and Networks at SMK Muhammadiyah 1 Jakarta. The sample in this study were 102 students of class XI and XII of the Computer and Network Engineering Department at SMK Muhammadiyah 1 Jakarta. Research data in the form of questions about the learning outcomes of network infrastructure administration, learning strategies and cognitive styles using a questionnaire. The method used in this research is a survey method with path analysis techniques. Based on the research results, it is concluded that (1) 31 = 0,207, thitung = 1,767 dan p-value = 0,080/2 = 0,004 < 0,05 which means "that there is a positive direct effect of learning strategies (X1) on learning outcomes of network infrastructure administration (X3)" is accepted or tested. (2) 21 = 0,604, thitung = 1,767 dan p-value = 0,084/2 = 0,042 < 0,05 which means "that there is a direct positive effect of cognitive style (X2) on learning outcomes of network infrastructure administration (X3)" is accepted or tested. (3) 32 = 0,205, thitung = 1,767 dan p-value = 0,000 < 0,05 which means "that there is a direct positive effect of learning strategies (X1) on cognitive style (X2)". accepted or tested
Pemanfaatan Limbah Plastik Sebagai Media Pembelajaran Untuk Meningkatkan Hasil Belajar Siswa Kelas X SMA N 6 Madiun
Authors: Rahmadani Desi Lia Nur , Diamay Aza Ayunda , Anggoro Dwi , Awalashari Bregas Dede , Pujiati Pujiati 
Published: June 2023

The processing of waste and used goods has become vital in environmental conservation efforts. One of the efforts in waste processing is to carry out the recycling process to serve as learning media. The problem discussed in this study is regarding the development of learning media from waste (virus props) to improve student learning outcomes at SMA Negeri 6 Madiun. The research method used is this type of research in the form of application research using the One-Group Pretest-Posttest Design to compare the results of the pretest and post-test. The pretest stage is carried out when students have not been given treatment while the posttest stage is carried out when students have been given treatment. The implementation was carried out in two meetings with 71 class X students of SMA Negeri 6 Madiun. Based on the results of data analysis that has been carried out in research on pre-service PPG students at the University of PGRI Madiun, it was found that the variable Entrepreneurship Education, Self-Efficacy, has a positive and significant effect as the creation of learning media significantly increases the learning outcomes of class X students. This project activity is about how to manage and handling inorganic waste in the school environment, so that it can have an effective value. One of those values ​​is turning it into a learning medium that can assist teachers in providing more efficient learning to students.
Abstrak. Pengolahan sampah dan barang bekas telah menjadi hal yang vital dalam usaha pelestarian lingkungan. Salah satu upaya dalam pengolahan sampah adalah dengan melakukan proses daur ulang untuk dijadikan sebagai media pembelajaran. Permasalahan yang dibahas dalam penelitian ini yaitu mengenai pengembangan media pembelajaran dari sampah (alat peraga virus) untuk meningkatkan hasil belajar peserta didik SMA Negeri 6 Madiun. Metode penelitian yang digunakan adalah Jenis penelitian berupa penelitian penerapan menggunakan One-Group Pretest-Posttest Design untuk membandingkan hasil pretest dan post-test. Tahap pretest dilakukan saat peserta didik belum diberi perlakuan sedangkan tahap posttest dilakukan saat peserta didik telah diberi perlakuan. Pelaksanaan dilakukan sebanyak dua kali pertemuan pada 71 peserta didik kelas X SMA Negeri 6 Madiun. Berdasarkan hasil analisis data yang telah dilakukan dalam penelitian pada mahasiswa ppg prajabatan Universitas PGRI Madiun didapatkan hasil bahwa variable Pendidikan kewirausahaan, Efikasi diri, berpengaruh positif dan signifikan sebagai pembuatan media pembelajaran signifikan meningkatkan hasil belajar peserta didik kelas X. Kegiatan proyek ini adalah tentang bagaimana mengelola dan menangani sampah anorganik di lingkungan sekolah, sehingga bisa memiliki nilai efektif. Salah satu nilai itu adalah mengubahnya menjadi media pembelajaran yang dapat membantu guru dalam memberikan pembelajaran yang lebih efisien terhadap peserta didik.
Prototipe Sistem Radar Pendeteksi Banjir Berbasis Web Server
Authors: Aulia Nurunnisa , Hadikusuma Ridwan Satrio , Stefanie Arnisa 
Published: June 2023

Abstrak—Tujuan dari penelitian ini adalah untuk mengembangkan sistem pemantauan banjir dan peringatan dini secara real-time. Teknik penginderaan ultrasonic sebagai RADAR(Radio Detection and Ranging) banyak digunakan di berbagai bidang teknik dan ilmu dasar. Salah satu keuntungan dari penginderaan ultrasonik adalah kemampuannya yang luar biasa untuk menyelidiki di dalam objektif secara non-destruktif karena ultrasonik dapat merambat melalui berbagai jenis media termasuk padatan, cairan dan gas. Studi ini hanya berfokus pada deteksi ketinggian air dan sistem peringatan dini (melalui situs web) yang memperingatkan lembaga dan individu terkait akan potensi kejadian banjir. Selain itu, sistem inquiry juga dimasukkan dalam penelitian ini agar lebih interaktif dimana individu dalam masyarakat dapat menanyakan ketinggian air aktual dan status daerah atau lokasi yang diinginkan terkena banjir melalui web. Kajian ini bertujuan untuk membantu warga agar siap dan berpengetahuan ketika terjadi banjir. Inovasi studi ini berada pada pemanfaatan ESP 32, sensor ultrasonic dan monitoring melalui web dalam membantu pemangku kepentingan untuk mengurangi korban terkait banjir. Artikel ini bertujuan untuk membantu daerah-daerah rawan banjir yang umum terjadi.
Stability, Funding Risk and Bank Performance: Evidence from Pakistan
Authors: Vohra Mohsin Siraj , Mubeen Muhammad , Arif Kashif , Perwez Khuram 
Published: June 2023

This study analyzes how banks' stability and funding risk affect their profitability in the case of Pakistan. For this purpose, data from 19 Banks were used from 2000 to 2016. The independent variable was Bank Performance for which Return on Assets was used. The dependent variables were first, Bank Stability, which was calculated as the Z-Score of RoA and Equity to Assets, and second, Funding Risk, which was calculated as the Z-Score of Deposits to Assets Ratio and Equity to Assets. Our control variables were Bank Size, Credit Risk, Liquidity Risk, Diversification, and Capital to Asset Ratio. Our results indicated that Funding Risk, Liquidity Risk, Credit Risk, and Bank Size are negatively affecting bank performance whereas bank stability is positively affecting bank performance. From the result of size, we may conclude that in the case of Pakistan, Larger Banks are not getting the benefits of economies of scale. Our findings suggest that policymakers and banking institutions in Pakistan should prioritize efforts to enhance bank stability and mitigate funding risk in order to improve bank profitability.
Productivity of new harvester prototype in willow plantations with different growing stock
Authors: Lazdins Andis , Makovskis Kristaps , Zimelis Agris , Gusarevs Igors , Gusarevs Germans 
Published: June 2023

A prototype of a mower-chipper typeharvester was developed for cutting small stems in cooperation between LSFRI Silava and SIA Laflora. The prototype produces chips and eco-pellets of various lengths in short rotation coppice, shelter belts and overgrown agricultural lands. The innovative element of the harvester is use of gravity force (bending of stems by a tractor own weight and formation of bunch of shoots with header and underframe) to feed in circular saws and chipper, thus significantly reducing energy demand for bending of shoots into the chipper, which is the most energy demanding operation in other commercial willow harvesters. Time studies were implemented in Skrīveri region in August 2022 in short rotation coppice fields established in 2011. Willows of tree different ages (1, 3 and 5 years) were harvested. The main factor influencing productivity in the study sites was growing stock of the coppice crops. The driving speed of the base machine cannot be significantly increased to avoid clogging of the chipper infeed and to retain good quality of chips; therefore, reduction of growing stock cannot be compensated with faster driving in the field. It was also noted that wood chip quality becomes significantly worse if the stump diameter of an average shoot is less than 1 cm and the saw blades are more often blocked by thin, flexible shoots. Similarly, clogging related issues were found in the 5 year old plantation. Optimal work conditions were in the 3 year old coppice crop; however, the driving speed of the base machine (MTZ82 tractor) was still too high. The recommended speed in such conditions is 0.8-1.2 km·h-1. The yield obtained in the tests under these conditions in the 3 year old coppice crop was 2.4 tons of dry matter per hour. The productivity could be raised by increasing the power of the base machine. There is still space for technical improvements to avoid clogging of material in the chipper and jamming of saw blades, as well as to improve the quality of chips.
Kinematic analysis of parallel transfer mechanism
Authors: Kronbergs Eriks , Smits Mareks 
Published: June 2023

The parallel transfer mechanism (patent LV 15506B) consists of links in form of two parallelograms with one common horizontal link and parallel to it opposite links of equal length, and the links of side edges of the parallelograms the lengths of which are equal in pairs, respectively. The common link of the parallelograms is formed as a guide for a slider to which two links are connected corresponding to the lengths of the side edge links of the parallelograms. The other ends of these elements are connected to the side edge links forming a rhomboid contour. The links of this planar linkage are connected by pin joints. For cyclic operation of the parallel transfer mechanism the hydraulic actuator is connected to the slider and attached to the common link. If the lower parallelogram link is the ground link, the output link will be the upper link, which parallel transfer movement will be ensured. The purpose of the work is kinematic analysis of this innovative mechanism. The side members with a length of 0.5 m and a hydraulic actuator with a speed 0.2 m·s-1 of movement are selected as a sample of the mechanism. Kinematic parameters as displacement, velocity and acceleration of the upper output link were determined using the Mathcad program for an idealized mechanism ignoring friction. These maximum values were 1 m, 0.985 m·s-1 and 0.508 m·s-2 accordingly. If the displacement of the output link is reduced, avoiding singularities and ensuring stability of mechanism, the maximum displacement, velocity and acceleration values will be reduced to 0.65 m, 0.55 m·s-1 and 0.10 m·s-2, accordingly. By changing the input parameters, it is possible using this Mathcad calculation method to obtain the values of the kinematic parameters for other size mechanisms.
Experimental research on quality functioning of haulm residue remover from sugar beet epicotyl
Authors: Bulgakov Volodymyr , Budzanivskyi Myroslav , Zach Martin , Korenko Maros , Beloev Ivan , Orszaghova Dana , Dostal Petr , Ivanovs Semjons 
Published: June 2023

Abstract: The modern technology of sugar beet haulm harvesting assumes the so-called double-stage cutting. First, the basic continuous cutting of the haulm residues from the epicotyl is carried out by using rotor haulm-cutting mechanisms. Then there follows clearance or cutting the residues from the epicotyl. This technology allows continuous, superior quality cutting and green matter harvesting. The green matter can be used as cattle fodder or a raw material for the production of biogas and clearance of haulm from root crops, eliminating the loss of sugary mass. We have developed a new structure of the epicotyl remover of haulm residues; the production tests have yielded positive results. The remover comprises two driving horizontal cylinders, on which cleaning elastic blades are fixed with a toggle in the radial direction. The machine’s shafts clasp each row of root crops, and the blades produce elastic bumps to the epicotyl from two opposite sides, thus cleaning effectively the spherical surfaces of the sugar beet epicotyls from the haulm residues. We have also developed new experimental equipment that allows modeling the work of the remover in field conditions, and we further pursue the experimental research of the machinery and tools. We have designed a program and methods to facilitate a field multifactorial experiment with a remover of haulm residues from the epicotyl of sugar beet roots and to determine the relevant quality indicators. The acquired results, processed by a PC, showed that the quality of the technological process that employs a remover with two driving horizontal cylinders to extract the haulm residues from the epicotyl of sugar beet can be improved via an elevated circumferential speed of the remover’s driving cylinders and a reduced height of the fixed blades above the level of the soil surface at a low gradual speed of the machine motion. Based on an analysis of the acquired functional and graphic dependences, we claim that the rational significance of the functioning modes of the studied remover of haulm residues from sugar beet epicotyl, which delivers the highest quality operation in order to remove the haulm residues from the spherical surfaces of the epicotyls of root crops, involves: 1) the speed of the gradual motion of the remover – 1.5...2.5 m·s-1; 2) the circumferential speed of the rotation of the driving cylinders – 55...80 rad·s-1; 3) the height of fixing the blades of the remover over the soil surface level – 0...2.5 cm.
Experimental research on performance of flexible screw conveyor when transporting agricultural materials
Authors: Bulgakov Volodymyr , Ivanovs Semjons , Beloev Ivan , Trokhaniak Oleksandra , Aboltins Aivars , Tkachenko Mycola , Rucins Adolfs , Ihnatiev Yevhen 
Published: June 2023

The paper presents the design of a flexible screw conveyor working body and a laboratory setup for experimental studies of determining its performance in transporting agricultural materials. Studies of conveying capacity have allowed to determine its dependence on many factors that characterize the process, namely: screw rotation frequency n, coefficient ψ of line filling, inner diameter of the pipeline shell D. To determine the effect of these parameters on the performance of the screw conveyor, a full-factor experiment was conducted, the results of which showed that the dominant factor influencing the performance value is the rotation frequency of the working body n, and the least influential is the diameter of the housing D, but the value of the cooefficient ψ of the main also has a significant effect on the performance of the transportation process. So, when changing the rotation frequency of the working body within the range of 300...800 rpm, the productivity increases by 50% for barley and 48% for industrial salt, when changing the line filling ratio within the range of 0.3...0.5, the productivity increases by 16% for barley and 18% for industrial salt, and when changing the pipeline diameter D from 0.08 m to 0.1 the productivity increases by 0.7% for barley and 0.2% for industrial salt.
Methane production from briquettes of birch sawdust
Authors: Dubrovskis Vilis , Dubrovskis Dagnis 
Published: June 2023

Renewable energy sources have the potential to reduce emissions of GHG when compared to the combustion of fossil fuels and thereby to mitigate climate change. Bioenergy systems can contribute to climate change mitigation if they replace traditional fossil fuel use (IPCC, 2012). Latvia is also striving to achieve neutral emissions by 2030. Therefore, the use of renewable energy is supported. Wood waste maybe an important resource for biogas production. The biodegradability is however limited because of the recalcitrant nature of the biofibers (lignocellulosic biomass) it contains. More and more biogas plants used the pellets or briquettes from various residues as a raw material. Their advantage is not only cheaper transport over longer distances, but also they absorb moisture well and do not form a floating layer. Hydraulic retention time working with such raw materials as birch sawdust and briquettes is relatively long and requires large volumes of bioreactors. Variety of additives can be used to improve the anaerobic digestion process. This article shows the results, where the enzymes alpha amylase, xylanase and biocatalyst Metaferm are used for the digestion process of birch briquette improvement. Birch briquettes were digested in 0.75 l bioreactors at temperature 38 °C in a batch mode process. Two biorectors were for control purposes and contained inoculums only. Other 14 biorectors contained biomass substrates without or with added enzymes or biocatalyst. Average specific biogas or methane yield from anaerobic fermentation of birch briquettes was 0.427 L·g-1DOM or 0.178 L·g-1DOM respectively. Addition of enzymes and biocatalyst (1ml) in bioreactors with birch briquettes increases the average methane yield.
Digital twin modelling for smart fruit-growing: eco-cyber-physical system 4+1 architecture
Authors: Kodors Sergejs , Zarembo Imants , Majore Ginta , Rubauskis Edgars , Litavniece Lienite 
Published: June 2023

The continuous evolution of technology and industrial revolutions provides new horizons for the application of smart solutions in every aspect of human lives. At the same time, it causes new social and engineering challenges, which require appropriate methodologies and solutions to overcome them. A smart orchard is an example of an eco-cyber-physical system. Modelling of an eco-cyber-physical system is more complex than simple software development because the complexity quickly grows together with the amount of interconnected components. The difficulties come together with various fruit tree species (in our case apples, pears, and cherries), related technologies and orchard systems. Such systems differ even in the frame of one species like apple trees (rootstocks effect on the tree size; planting density; tree canopy training systems, etc.) and some production risk-reducing technologies (rain and hail, against birds and insects protecting covering systems), as well as agricultural machinery movement in the site. An additional accelerator of complexity growth is the development of eco-cyber-physical and data-driven decision-making paradigms, which propose business-driven development considering ecological and technical aspects together within cyberspace. As a result, the product of synergy is a digital twin paradigm, which provides digital mirrors for artificial intelligence to monitor and manipulate the physical world considering environmental aspects. This article presents the digital twin “4 + 1” model of a smart orchard, which is described using modern visual notations like 4EM for project view, ARTSS for logical view, OPM for process view, IoT-adapted UML component diagram for physical view and spatial map for deployment view. The proposed methodology offers a roadmap for design and development of smart solutions in fruit-growing to predict the yield and potential of income generation in the early stages of the season.