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Showing 417 articles found for "Material"

PERANCANGAN BATCH MIXER UNTUK PENGADUKAN BASE SOAP BERBASIS INTERNET OF THINGS (IoT) DI IKM TA REZEKI, KOTA MEDAN

Tengku Rachmi Hidayani, Sry Wahyuni, Poltak Evencus Hutajulu, New Vita M.D Marbun, Meutia Mirnandaulia, Krissandarta Tarigan, Benny Rio Fernandez, Fransnazoan Sitorus
Abstract: Small and Medium Industries (SMEs) play an important role in the regional and national economy, especially in providing employment and increasing the added value of local products. T.A Rezeki is one of the SMEs that produces… uces its products by purchasing raw materials from products at chemical stores, then marketing them to surrounding areas, several restaurants, mosques and laundries directly. The design of an IoT-based batch mixer is expected to help TA Rezeki SMEs to automate the base soap stirring process so that it is more efficient and consistent. With the implementation of IoT, it is expected to reduce operational costs, increase production capacity, and produce soap products with better and uniform quality. Based on the satisfaction survey conducted, the results showed that the digitalization of soap stirring tools carried out in this activity provided benefits to SMEs by providing convenience with equipment automation and more consistent stirring so that the resulting products are also of better quality.

Rancang Bangun Media Pembelajaran Interaktif Berbantuan Augmented Reality (AR) pada Mata Pelajaran Perencanaan dan Instalasi Sistem Audio Video

Fernanda, M, Hidayat, Hendra
Abstract: Penelitian ini bertujuan untuk merancang dan membangun media pembelajaran interaktif berbantuan Augmented Reality (AR) pada mata pelajaran Perencanaan dan Instalasi Sistem Audio Video (PISAV) di SMKN 1 Sumatera Barat. Latar… tar belakang penelitian ini didasari oleh masih dominannya penggunaan media pembelajaran konvensional serta belum tersedianya media pembelajaran interaktif berbasis AR yang mampu membantu siswa memahami materi teknis secara visual dan kontekstual. Media pembelajaran dikembangkan menggunakan platform Assemblr EDU dengan metode pengembangan Multimedia Development Life Cycle (MDLC) yang meliputi tahapan Concept, Design, material collecting, Assembly, Testing, dan Distribution. Materi yang difokuskan dalam pengembangan media ini adalah instalasi sistem audio rumah. Uji kelayakan media dilakukan melalui validasi ahli materi dan ahli media, serta uji penerimaan pengguna (User Acceptance Testing/UAT) yang melibatkan siswa kelas XI Teknik Audio Video. Hasil validasi menunjukkan bahwa media pembelajaran yang dikembangkan berada pada kategori valid dan layak digunakan. Hasil UAT juga menunjukkan tingkat penerimaan yang sangat tinggi oleh siswa, sehingga media pembelajaran interaktif berbantuan AR ini dinilai sangat layak digunakan sebagai media pendukung pembelajaran PISAV. Media ini diharapkan dapat meningkatkan motivasi belajar, pemahaman konsep, serta keterlibatan aktif siswa dalam proses pembelajaran.

DESIGN AND CONSTRUCTION OF A YOUNG COCONUT PEELING MACHINE WITH A CAPACITY OF 60 FRUITS/HOUR FOR MICRO-ENTERPRISES

Bambang, Samuel Haris Purba
Abstract: This study aims to analyze the Power motor Which needed For peeling skin coconut young ; Basics Which used For make machine peeler skin young coconut ; Calculation components construction machine peeler young coconut skin… n ; Time Which needed in One time peeling skin coconut young in manual ; Results Which obtained from testing tool help peeler  or cutter coconut skin young. From the results of the discussion in designing the construction of a young coconut peeling machine with a capacity of 60 pieces / hour with acceptable results according to the plan. After the discussion is carried out in accordance with what is desired based on the objectives of this planning, namely: determining the motor power needed to drive the young coconut peeling machine; determining the material and size of the machine elements used; showing the work of the machine and making a working drawing of the coconut peeling machine. The results can be concluded as follows: The electric motor used = 1 hp , Belt length on the pulley = 61 inches , Motor pulley diameter = 3 inches , Pulley diameter on the coconut drive = 12 inches , Bearing = 6205 , Analysis of the cost of making the machine used Rp: 5,602,000 .

DESIGN OF A MOBILE CRANE TO LIFT DAMAGED VEHICLES WITH A CAPACITY OF 6 TONS

Harapan Budianto, Samuel Haris Purba
Abstract: This study discusses the design of a mobile crane to lift damaged vehicles with a capacity of 6 tons with the aim of analyzing the planning of the lifting system used ; planning the rope to be used ; transmission system… ; calculation of the components of the lifting equipment used ; calculation of power to rotate the drum ; the tool designed is a mobile crane with a capacity of 6 tons to 6 tons ; and calculating the lifting time. assembly . Type of drive motor with Combustion engine = internal combustion engine , Drive motor power = 192.36 Hp , Drive motor rotation = 2740 rpm , Max lifting capacity = ton , Lifting height = 3 m . Drum with Drum diameter = 300 mm , Drum pitch = 16 mm , Drum length = 300 mm , Maximum compressive stress of material          = 1600 kg/cm 2 The maximum compressive stress that occurs = 1173.6 kg/cm 2 . Steel rope ( Rope type = 6 x 9 x 1 fc , Rope cross-sectional area = 1173.6 kg/cm 2 . = 2.9 cm 2 , Wire diameter = 1.18 mm , Diameter of steel rope = 26.3 mm , Actual fracture stress = 180/199 kg/mm 2 , Fracture loading = 39100 kg/mm 2 , U nut rope usage = 88.2 months ); Pulley ( Type of pulley = fixed pulley , pulley diameter = 4.8 cm , Width of the pulley = 2.2 cm ); Hook ( Hook type   = single hook with thread , Thread type on hook         = M 42. Length of threaded hook = 42 mm , Number of threads on the hook = 9 threads , Distance between threads = 4.5 mm , Outer diameter on thread = 42 mm , Effective diameter on the thread = 39 mm , Core diameter on thread                 = 37.129 mm , Hook material = wrought carbon steel SF 60 , Permissible contact stress = 3 kg/mm 2 , The contact stress that occurs = 2.7 kg/mm 2 ); Boom ( Boom type = boom with fixed arm , Number of booms                = 2 pieces , Boom length = 4 m , Boom weight = 1568.66 kg , Boom material = steel pipe , Tensile strength of the material = 40 kg/mm 2 , Tensile strength that occurs on the boom = 10 kg/mm 2 ); Gears ( Types of gears = worm gear , type of gear on the shaft material = cross gear , Type of chain used = hinge chain , chain weight per meter       = 16.5 kg )

Innovation in Designing a 500 kg Capacity Passenger Elevator in a Multi-Storey Building: A Study at Suzuya

Samuel Haris Purba
Abstract: This study aims to analyze and design the working system of a passenger elevator, including the working mechanism of the elevator, the design of the lifting system, the calculation of cage capacity, the design of power and… nd the selection of the main drive motor, the calculation of the main components, the design of the transmission, the calculation of maintenance costs, the selection of component materials, and the creation of technical drawings. The design results show that the specifications of the drive motor used have a power of 6.28 Hp with a rotation of 800 rpm, a lifting speed of 15 m/min, and a lifting capacity of 500 kg. The shaft components are designed using S45C carbon steel, with details of Shaft I with a diameter of 24 mm, Shaft II with a diameter of 41 mm, and Shaft III with a diameter of 41 mm. The gears consist of Gear I with a pitch circle diameter of 42 mm, a circle diameter of 37 mm, a head circle diameter of 46 mm, a width of 16 mm, and 21 teeth; Gear II with a pitch circle diameter of 210 mm, a circle diameter of 205 mm, a head circle diameter of 214 mm, a width of 16 mm, and 105 teeth; Gear III with a pitch circle diameter of 68 mm, a circle diameter of 63 mm, a head circle diameter of 108 mm, a width of 16 mm, and 34 teeth; and Gear IV with a pitch circle diameter of 270 mm, a circle diameter of 265.5 mm, a head circle diameter of 270 mm, a width of 16 mm, and 21 teeth. The drum used has a diameter of 253 mm, a weight of 100 kg, a length of 1073.79 mm, and a thickness of 16 mm.

Analisis Determinan dan Ketepatan Kode Diagnosis Penyakit Sistem Respirasi Berbasis ICD-10: Studi Evaluasi di Puskesmas X Kota Malang

Prima Soultoni Akbar, Anggi Ardhiasti
Abstract: Validitas data klinis merupakan fondasi utama dalam keberlanjutan sistem pembiayaan Jaminan Kesehatan Nasional (JKN) dan penentuan kebijakan kesehatan publik. Penelitian ini bertujuan untuk menganalisis akurasi kode diagnosis… nosis penyakit respirasi dan faktor penyebab ketidaktepatan di Puskesmas X Kota Malang. Metode yang digunakan adalah studi deskriptif kuantitatif ini mengaudit 90 rekam medis yang dipilih secara acak dari periode Agustus 2025. Analisis akar masalah dilakukan menggunakan pendekatan manajemen 5M (Man, Material, Method, Management dan Money). Hasil ditemukan tingkat akurasi kode sebesar 67% dan ketidaktepatan 33%. Faktor penyebab utama meliputi defisiensi kompetensi koder, kualitas input diagnosis dokter yang rendah, ketidakpatuhan SOP, serta absennya evaluasi mutu internal dan sistem insentif. Kesimpulan penelitian ini terdapat tingkat ketidaktepatan sebesar 33% berimplikasi pada risiko finansial dan manajerial. Diperlukan intervensi melalui pelatihan spesifik dan penegakan SOP untuk optimalisasi mutu data.

IMPROVING STUDENT LEARNING OUTCOMES WITH THE INQUIRY LEARNING MODEL USED BY GOOGLE FORM MEDIA ON IMPULSE AND MOMENTUM MATERIAL IN GRADE X OF SMA ASUHAN DAYA MEDAN IN THE 2023/2024 ACADEMIC YEAR.

Jesica
Abstract: The purpose of this research is to determine the improvement in performance and learning outcomes of Physics with the Google Form Assisted Inquiry Learning Model for Class X SMA Asuhan Daya Medan. The type of research used… ed is classroom action research which aims to determine whether there is an increase in performance and learning outcomes of the subjects, namely students. The population of this research is all students of Class X SMA Asuhan Daya Medan. The sample is class X-IPA, totaling 25 students, who are taught using the inquiry learning model based on the concept of freedom of learning. This type of research is carried out using two cycles to achieve good learning outcomes. The instrument in this question consists of 14 multiple-choice questions with options (a, b, c, d and e) which are tested for validity, reliability and level of test difficulty. Learning outcomes are obtained using the Gain value according to the results of the hypothesis test, learning outcomes increase from ???? ̅ pre-cycle = 36.36 to ???? ̅ cycle I = 68.91 N-Gain = 0.44 and is classified as neutral. learning improvement from ???? ̅ diaphragm = 36.36 ???? ̅ cycle II = 85.09 with N-Gain = 0.74 is classified as high. The increase in learning activity ???? ̅ cycle I meeting 1 = 40.94 to ???? ̅ cycle and I fulfill the first N-Gain = 0.19 less classified as meeting 2 = 52.00, then the learning activity increases ???? ̅ cycle I 1 = 40.94 to meeting II = 66.06 seconds N With - Gain = 0.42 is classified as moderate, and the increase in active learning ???? ̅ cycle I meeting 1 = 40.91 to ???? ̅ cycle II meeting 2 = 85.09 with the third N-Gain = 0.85 is classified as high. The results of this research show an increase in performance and higher learning outcomes in the learning process using the Google Form Assisted Inquiry Learning Model for Class X of SMA Asuhan Daya Medan in the 2023/2024 academic year.  

THE INSHOT- ASSISTED INQUIRY LEARNING MODEL ON STUDENTS' SCIENCE PROCESS SKILLS ON THE MAIN MATERIAL OF WORK AND ENERGY IN GRADE X MIPA IN THE EVEN SEMESTER OF GAJAH MADA MANDIRI PRIVATE SENIOR HIGH SCHOOL MEDAN IN THE 2022/2023 ACADEMIC YEAR

Gita
Abstract: This study aims to determine the significant effect of the use of the inshot-assisted inquiry learning model using the main material of work and energy in class X MIPA, even semester, Gajah Mada Mandiri Private High School,… ol, Medan, Academic Year 2022/2023. This kind of research is basically experimental. All students of class X MIPA, even semester, Gajah Mada Mandiri Private High School, Medan from both classes constitute the majority of the population in the essay. Cluster random sampling was used to collect samples, with X MIPA1 and X MIPA2 acting as the experimental and control groups, respectively, with a total of 32 participants each and a teaching model that emphasizes in-depth learning with short lessons. The instrument used in this study was an essay test with approximately 10 validated topics. Data analysis of Lhitung-Ltabel and Fhitung-Ftabel showed that both data sets had a normal and homogeneous distribution. Analysis of two similar government agencies will be carried out next. The results of both classes were normally and uniformly distributed. Because tcount > ttable, the results of the one-tailed t-test for alpha = 0.05 and dk 62 produced tcount = 21.27 and ttable 1.99. This shows that there are significant benefits from using interdisciplinary learning with an inquiry model to support the student process in semester X of Mathematics and Natural Sciences in the academic year 2022/2023.

THE EFFECT OF PHET-ASSISTED JIGSAW TYPE COOPERATIVE LEARNING MODEL ON STUDENTS' LEARNING OUTCOMES INPRIVATE HIGH SCHOOL GRADE XI WAVE MATERIALGAJAH MADA MEDAN 2022/2023 Academic Year

Budi
Abstract: The purpose of this study is to determine the broad impact of the use of the Jigsaw cooperative mastery model assisted by PheT on the results of students' attention recognition on the greatness of XI SMA Gajah Mada Medan&#8230; Academic Year 2022/2023. The form of this research is a quasi-experimental research. The population of this study was all students of class XI MIPA at SMA Swasta Gajah Mada Medan Academic Year 2022/2023. The sample in this study was taken using cluster random sampling, namely the experimental class of 30 students implemented to the Jigsaw cooperative mastery model assisted by PhET and the control class of 28 students implemented to the DI version. This observation tool uses an essay test with ten proven questions used in this study. The average pre-test score of the experimental class is 32.89 with a normal deviation of 2.99 and the average post-test score is 84.33 with a normal deviation of 2.72. These figures are based entirely on research findings. The suggested pretest ratings and desired deviations for the manipulation style were 35.44 and 3.82, respectively , and the intended posttest ratings were 71.33 and 5.93. Lcount Ltable was accepted for each instruction with a daily distribution, even as Fcount obtained Ftable for homogeneous elegance. The results of the statistical test (t-party test ) and dk 56 found that the initial abilities of the 2 lessons were the same because tcount < ttable, or -0.84 1.94, is true. Furthermore, exclusive treatment has been applied to 2 lessons and towards the end of the lesson a publication test was given. From the results of the statistical test of the fact (one-celebration t check) it was obtained tcount > ttable, namely 2.41 > 1.94, this indicates that there is a possibility of a Jigsaw type cooperative learning model that has a large influence with the help of PhET on student learning outcomes. resulting in excessive magnificence of Gajah Mada's personal XI questions, faculty of 2022/2023 academic year .

THE EFFECT OF THE PROJECT BASED LEARNING MODEL USED BY CANVA ON THE LEARNING OUTCOMES OF GRADE X MIA STUDENTS OF SMA PARULIAN 2 MEDANACADEMIC YEAR 2023/2024

Harapan Panjaitan
Abstract: The purpose of this study was to determine the effect of Canva Assisted Mission Based Learning Version on students' Physics learning outcomes on the Measurement material of class X Semester I of SMA Parulian 2 Medan in the&#8230; he 2023/2024 Academic Year. This type of research is a quasi-experimental study. The population of this study was all students of class X MIA semester I of SMA Parulian 2 Medan which includes 2 subjects with a total of 30 students. Sampling was carried out by General Sampling where the number of samples was equal to the number of populations, so that the sample in this test changed to 15 students of class X MIA 1 as an experimental model, who were taught to use Canva. Assisted efforts based on the purchase of model information and 15 students of sophistication X MIA 2. as beauty manipulation were taught with a direct introduction model assisted with Canva. The research device used a multiple-desire view at along with 14 items with five choices (a, b, c, d, and e) which had been tested beforehand to determine the validity, reliability, level of difficulty, and item differentiation. Before examining the hypothesis, the normality and homogeneity of the records were checked first. The results show that the general pretest score for the test is 43.20 with a complete deviation of 8.23 and for the ordinary one is forty-two.75 with a standard deviation of seven, sixty-four. For preliminary competency tcount = 0.329 and ttable = 2.05. shows that tcount < ttable, then the initial talent of both classes is identical. After getting knowledge about ending, the post-test changed to finished for both lessons and the average trial cost changed to 80.79 with an average difference of 8.68 while for the elegance of manipulation the publication test cost became 72.67 with a current deviation of 8.15. Based on the pre-test homogeneity test, it was obtained Fcount = 1.162 along with Ftable = 2.48. because Fcount (1.162) < Ftable (2.48), then the pretest research fact turned out to be homogeneous, then the publish-check homogeneity test obtained Fcount = 1.213 along with Ftable = 2.48. because Fcount (1.213) < Ftable (2.48) then the post-test research data is homogeneous, then the statistical test (one-tailed t-test) obtained tcount = 2.67 and ttable = 1.70 at a significance level of α = 0.05, with dk as much as 28. Because tcount > ttable, being unique (2.67 > 1.70), this indicates that there may be a very large effect of the Canva Assisted learning-based task version on Physics students gaining knowledge about the results in the problem of interweaving of sophistication X Semester I personal strengths of the Parulian 2 Medan faculty in the 2023/2024 academic year.