Poltek-EJS (Politeknik Katolik Saint Paul Sorong - Jurnal Elektronic System)
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ANALISIS KESALAHAN SISWA DALAM MENYELESAIKAN SOAL CERITA PADA MATERI PYTHAGORAS BERDASARKAN TEORI KASTOLAN DI SMP NEGERI 2 LANGOWAN
Get PDFThe purpose of this study was to describe the errors made by students in solving story problems on pythagorean material in class VIII B SMP Negeri 2 Langowan based on Kastolan's theory. This research uses qualitative research, with the methods used in data collection are written tests in the form of description questions (essay), interviews, and documentation. The subjects in this study were class VIII Byang students totalling 29 students. Based on the results of the data obtained, it shows that in solving story problems on pythagorean material, students make mistakes at the stage of understanding the concept with a percentage of 15.17%, the stage of understanding the procedure with a percentage of 42% and the stage of understanding the technique with a percentage of 62%
SUKSESI BAKTERI PADA FERMENTASI KULIT BUAH NANAS (Ananas comosus (L.) Merr)
Get PDFThe utilization of pineapple peel in the fermentation process produces bacteria and probiotics that are beneficial for human health. The fermentation process is carried out to enhance the nutrition, shelf life, and organoleptic properties of food products. The presence of microbes, especially bacteria, is believed to play an important role in the fermentation process of pineapple peel. However, the specific bacteria involved in the fermentation of pineapple peel are not yet fully known. The aim of this research is to study the bacterial succession during the fermentation of pineapple peel (Ananas comosus (L.) Merr) and to identify the types of bacteria obtained during the fermentation process. This research uses a qualitative descriptive laboratory-based method by conducting morphological identification of bacteria and biochemical testing to determine the types of bacteria present in the fermentation of pineapple peel. Based on the identification data, 11 bacterial isolates were found during the fermentation of pineapple peel. The isolates were identified macroscopically and then subjected to a series of biochemical tests. The results of the research indicate that the microorganisms involved in the fermentation of pineapple peel belong to the genera Staphylococcus sp., Bacillus sp., and Lactobacillus sp.. The microbial succession during pineapple peel fermentation shows that the bacterial population of the genus Staphylococcus sp. dominates on day 0 of fermentation, while the genus Bacillus sp. undergoes a succession pattern, experiencing growth on day 1 and continuing to increase until day 3. Meanwhile, bacteria from the genus Lactobacillus sp. only appeared on day 1 of fermentation
PENGARUH MODEL PROBLEM BASED LEARNING TERHADAP HASIL BELAJAR SISWA PADA MATERI PEWARISAN SIFAT DI SMP NEGERI 8 SATAP TONDANO
Get PDFPenelitian ini bertujuan untuk mengetahui hasil belajar dan aktivitas belajar siswa yang dibelajarkan dengan model pembelajaran problem based learning pada materi pewarisan sifat. Penelitian ini menggunakan metode pre-experimen dengan rancangan one group pre-test post-test. Populasi dalam penelitian ini seluruh siswa di SMP Negeri 8 SATAP Tondano, sedangkan sampel penelitian adalah kelas IX yang berjumlah 17 siswa. Teknik pengumpulan data dan instrumen penelitian yang digunakan adalah tes dan observasi. Analisis data aktivitas belajar siswa dilakukan dengan rumus persentase dan analisis hasil belajar siswa dilakukan dengan menggunakan rumus N-Gain dan uji-t. Hasil penelitian ini menunjukkan rata-rata aktivitas belajar siswa pada pertemuan pertama dengan nilai rata-rata 65,8% dengan kategori aktif, pertemuan kedua dengan nilai rata-rata 73,44% dengan kategori aktif, dan pertemuan ketiga dengan nilai rata-rata 81,94% dengan kategori sangat aktif. Rata-rata hasil belajar siswa pada materi pewarisan sifat memperoleh nilai pre-test 43,53 dan post- test 77,35. Hasil uji-t diperoleh thitung > ttabel (6,162 > 1,745) sehingga Ha diterima dan H0 ditolak. Sehingga dapat disimpulkan bahwa pembelajaran dengan menggunakan model problem based learning berpengaruh pada hasil belajar siswa dan dapat meningkatkan aktivitas belajar siswa di kelas IX SMP Negeri 8 SATAP Tondan
DESAIN DAN IMPLEMENTASI KENDALI MOTOR AC 3 FASA MENGGUNAKAN MODUL (VSD) VARIABLE SPEED DRIVE
Get PDFVariable speed drive is used to convert AC voltage into DC voltage, then the DC voltage is converted again into AC voltage with the desired frequency with the aim of regulating the speed of the induction motor. The speed of the induction motor can be changed by changing the frequency value, so the variable speed drive is also called the variable frequency drive.
The variable speed drive used is a Schneider Atv 12 variable speed drive with a power of 0.37 kw with a 3-phase induction motor load with a power of 0.18-0.37 kw. The test results prove that the rotation of the induction motor can be adjusted by changing the frequency.Variable speed drive digunakan untuk mengubah tegangan AC menjadi tegangan DC, kemudian tegangan DC tersebut diubah lagi menjadi tegangan AC dengan Frekuensi yang diinginkan dengan tujuan untuk mengatur kecepatan motor induksi. Kecepatan motor induksi dapat diubah dengan cara mengubah nilai frekuensi, sehingga variable speed drive disebut juga variable frekuensi drive.
Variable speed drive yang digunakan adalah variable speed drive Schneider Atv 12 dengan daya 0.37 kw dengan beban motor induksi 3 fasa dengan daya 0.18-0.37 kw. Hasil uji membuktikan bahwa putaran motor induksi dapat diatur dengan mengubah frekuensi
ANALISA PENGARUH PUTARAN MESIN TERHADAP KONSUMSI BAHAN BAKAR PADA SEPEDA MOTOR YAMAHA FIZ R 110
Get PDFKendaraan bermotor seperti mobil dan motor sering di gunakan sebagai trasportasi maupun alat bantu dalam bekerja. Sepeda motor merupakan kendaraan yang paling umum dan praktis digunakan dalam kehidupan sehari-hari. Kenyamanan suatu kendaraan tergantung pada perawatan serta pengecekan terhadap bagian-bagian kendaraan tersebut terutama komponen utama yaitu mesin. Mesin pada sepeda motor ada dua jenis yaitu, jenis 2 (dua) langkah dan jenis 4 (empat) langkah. pada 2 (dua) langkah, dalam satu kali putaran poros engkol (crankshaft) terjadi satu kali proses pembakaran dan setiap putaran pada suatu mesin terjadi karena adanya proses pembakaran bahan bakar dalam ruang bakar atau cylinder block. Poses pembakaran pada ruang bakar akan menggerakan piston maju mundur, pergerakan piston itu diteruskan oleh poros engkol atau crankshaft dan diteruskan ke transmisi lewat fly wheel, sehingga tiap putaran pada mesin sangat berpengaruh terhadap konsumsi bahan bakar. Semakin cepat putaran mesin semakin banyak bahan bakar yang di konsumsi, semakin tinggi putaran mesin semakin banyak pula bahan bakar yang dikonsumsi. Pada putaran rendah 1100 rpm posisi transmisi/gear normal lebih banyak mengkonsumsi bagan bakar dibandingkan Gigi 1 dan Gigi 2 dan pada putaran tinggi 2500 rpm posisi transmisi/gear Gigi 1 lebih banyak mengkonsumsi bahan bakar di bandingkan dengan posisi transmisi/gear Normal dan Gigi 2. Pada ketiga posisi transmisi/gear ini yang mengkonsumsi bahan bakar lebih banayak untuk putaran rendah, sedang dan tinggi adalah posisi transmisi/gear Gigi 1. Tinggi dan rendahnya putaran mesin sangat berpengaruh terhadap konsumsi bahan baka
ANALYSIS OF USER EXPERIENCE TESTING STMIK AKI WEBSITE USING SUPR-Q IN PERSPECTIVE HUMAN-COMPUTER INTERACTION
Get PDFHuman-Computer Interaction (HCI) is a scientific field that studies human-computer interaction in order to design systems that satisfy user requirements and enhance the user experience (UX). HCI is very important in the development of websites because a good user experience is necessary to improve user satisfaction, efficiency, and effectiveness. The motivation behind this study is to recognize the qualities and shortcomings of the STMIK AKI site as far as client experience, as the need might have arisen to further develop client UX. From a HCI perspective, SUPR-Q is one way to use a questionnaire to measure user experience. To analyze various UX dimensions, UX testing will use Task Level Satisfaction methods like Single Ease Question (SEQ), Scenario Testing, and System Usability Scale (SUS) in addition to the SUPR-Q method. The SUPR-Q Loyalty variable had a low value, but the SEQ, SUS, and SUPR-Q methods produced results with an average grade of B, supporting the hypothesis that respondents were satisfied with their use of the STMIK AKI website. The worth got was 59.1% with Grade C and the speculation was adequate in utilizing and suggesting the STMIK AKI site page. Furthermore, in the Situation Testing strategy, the typical worth got is 57.5% with Grade C, with the speculation that the respondent or client is very able in finishing jobs or working the STMIK AKI page framework
APLIKASI MOBILE KONSULTASI DOKTER DENGAN MENGGUNAKAN FRAMEWORK REACT NATIVE DI KLINIK MITRA ANDA TIMIKA
Get PDFToday's society often complains about various ailments that are felt. By consulting directly or face to face, the community can complain about various things that are felt. However, consultations are often carried out face-to-face with doctors or health professionals who often complain about the time and schedule of examinations by doctors. By using a face-to-face system it is felt to be less effective for the community. To address these issues, the authors created Doctor Consultation apps for Android and iOS, constructed them with the React Native framework, and leveraged services from the Firebase Firestore Database as the system's database, Firebase Authentication as authentication to access the system. Firebase Storage for data storage. Mitra Anda App includes consulting features, doctor information based on previous user ratings, news and offers from clinics, authentication that checks user authorization to access the system, get clinic directions, etc. Mitra Anda application will make it simpler for the general public to conduct consultations or obtain medical services from doctors, find out the location of clinics, receive health news and offers from clinics to receive health services directly
PENGEMBANGAN BAHAN AJAR IPA BERBASIS E-BOOK MATERI SISTEM PERNAPASAN PADA MANUSIA PADA SISWA KELAS VIII DI SMP NEGERI 2 SIAU TIMUR SELATAN
Get PDFThis research aims to develop a product in the form of ebook based science teaching materials on the human respiratory system at the SMP Negeri 2 Siau Timur Selatan and to determine the feasibility of ebook based science teaching materials on the human respiratory system at the SMP Negeri 2 Siau Timur Selatan. Type of Research And Development with the development model by Borg and Gall, namely (1) potential and problems, (2) data collection, (3) product design, (4) design validation, (5) design revision, (6) trial (test try small gorups). This research was conducted in the even semester of the 2022/2023 academic year. Data collection was carried out by interviews and questionnaires. This succeeded in (1) producing a media product in the form of ebook based science teaching materials on the human respiratory system at the SMP Negeri 2 Siau Timur Selatan, (2) The ebook was declared suitable for use with an average score of 97% for all aspects of the material, 95% for media experts, 92% for teacher responses as users, and 93% for student responses as users, so that the suitability of the ebook based science teaching materials developed is included in the category “very goodâ€
RANCANG BANGUN SISTEM INROMASI PENCARIAN DATA PENDAFTARAN SISWA SISWI PADA PAUD KB SABILUL IMAN PURWOKERTO BERBASIS WEBSITE
No full textPAUD KB Sabilul Iman, in providing services has not maximized the use of information technology, one of which is the new student registration system. As for the activities of the new student registration system found in PAUD KB Sabilul Iman, currently, the process of searching for student data is still being carried out by searching piles of bookkeeping that were previously used for recording new student data used for new student registration. From the results of the interviews that have been conducted, the problems that often occur are frequent errors (human errors) of student data being confused, data loss, and taking a long time in the process of managing student data so that employees cannot complete reports on time. Therefore, a Website-Based Information System for Searching Student Registration Data at Paud Kb Sabilul Iman was built. System development is carried out using the Prototype method, the PHP programming language, the Codeigniter framework, and database storage with MySQL. This research was also carried out until the testing process used the Wilcoxon signed test, black box testing, white box testing and benefit testing based on ISO 25010 standards. Based on the benefits test, the results obtained were Functional Suitability of 93.3%, Performance Efficiency of 98.35%, Reliability of 89.17%, Usability of 94.17%, and Maintainability of 94.9%. Thus it can be concluded that the Design of a Website-Based Search Information System for Searching Student Registration Data at Paud Kb Sabilul Iman Purwokerto can overcome problems in making reports and speed up the process of searching for student registration data at Paud kb Sabilul Iman Purwokerto.PAUD KB Sabilul Iman dalam melakukan pelayanan belum memaksimalkan penggunaan teknologi informasi, salah satunya yaitu pada sistem pendaftaran siswa siswi baru. Adapun kegiatan Sistem pendaftaran siswa siswi baru yang terdapat pada PAUD KB Sabilul Iman saat ini proses pencarian data siswa masih dilakukan dengan cara mencari tumpukan-tumpukan pembukuan yang sebelumnya sudah digunakan untuk pecatatan data siswa siswi baru yang digunakan untuk pendaftaran siswa siswi baru. Dari hasil wawancara yang telah dilakukan, permasalahan yang sering terjadi adalah sering terjadi kesalahan (human eror) tertukarnya data siswa siswi, kehilangan data, membutuhkan waktu yang lama dalam proses pengelolaan data siswa siswi sehingga karyawan tidak dapat menyelesaikan laporan tepat waktu. Oleh sebab itu dibangunlah Sistem Informasi Pencarian Data Pendaftaran Siswa Siswi Pada Paud Kb Sabilul Iman Berbasis Website. Pembangunan sistem dilakukan dengan menggunakan metode Prototype, bahasa pemgrograman PHP, framework Codeigniter dan penyimpanan database dengan MySQL. Penelitian ini juga dilakukan hingga proses pengujian menggunakan pearson correlation, blackbox testing, whitebox testing serta pengujian manfaat yang berdasarkan dari standar ISO 25010. Berdasarkan uji manfaat, didapatkan hasil dari Functional Suitability sebesar 93,3%, Performance Efficiency sebesar 98,35%, Reliability sebesar 89,17%, Usability sebesar 94,17%, dan Maintainability sebesar 94,9%. Dengan demikian dapat diambil kesimpulan bahwa Rancang Bangun Sistem Informasi Pencarian Data Pendaftaran Siswa Siswi Pada Paud Kb Sabilul Iman Purwokerto Berbasis Website dapat mengatasi masalah dalam pembuatan laporan dan mempercepat proses pencarian data pendaftaran siswa siswi pada paud kb sabilul iman purwokerto
RANCANG BANGUN TRAINER FUEL INJECTION SIMULATOR SEPEDA MOTOR
Get PDFSistem injeksi bahan bakar elektronik dikembangkan untuk meningkatkan kinerja sistem bahan bakar pada motor bensin. Sistem injeksi bahan bakar elektronik adalah seperangkat alat untuk mensuplay bahan bakar yang diperlukan untuk pembakaran pada motor bensin. Sistim ini menggunakan beberapa sensor untuk mendeteksi kondisi mesin dan unit pengontrol (rangkaian elektronik). Untuk mempelajari lebih jauh tentang sistem ini maka Pendidikan tinggi yang menyelenggarakan Pendidikan vokasi jurusan Teknik khususnya Teknik otomotif membutuhkan trainer fuel injection simulator sebagai media mendukung proses pembelajaran. Oleh karena itu peneliti tertarik untuk merancang dan membuat trainer fuel injection simulator sepeda motor.
Tujuan dari penelitian ini adalah untuk merancang dan membuat trainer fuel injection simulator sepeda motor yang dapat digunakan sebagai media pembelajaran, serta untuk mengetahui pengaruh malfungsi sensor terhadap sistem kerja EFI. Hasil perancangan dan pembuatan trainer fuel injection simulator sepeda motor menghasilkan sebuah alat yang dapat digunakan dalam menunjang proses pembelajaran dengan ukuran rangka tinggi panel 100 cm, tinggi meja 80 cm dan lebar 100 cm. Setelah dilakukan pengujian maka dapat disimpulkan bahwa ketika terjadi malfungsi pada throttle body maka akan berpengaruh pada injector. Dimana injector akan menyemprotkan bahan bakar lebih sedikit daripada saat kondisi normal