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All Journal Natural Science: Journal of Science and Technology JURNAL MATEMATIKA STATISTIKA DAN KOMPUTASI CESS (Journal of Computer Engineering, System and Science) Prosiding Seminar Nasional IPTEK Terapan (SENIT) 2016 Pengembangan Sumber Daya Lokal Berbasis IPTEK JURNAL ILMIAH MATEMATIKA DAN TERAPAN Syntax Literate: Jurnal Ilmiah Indonesia BAREKENG: Jurnal Ilmu Matematika dan Terapan JMM (Jurnal Masyarakat Mandiri) Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Buletin Ilmiah Sarjana Teknik Elektro Jurnal Darma Agung DedikasiMU: Journal of Community Service SmartComp Jurnal Informatika: Jurnal Pengembangan IT Jukerdi: Jurnal Kewirausahaan Cerdas Dan Digital J-mace : Jurnal Penelitian METAL
Rais Rais
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Religion Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Transportation Other

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ANALISIS BREAK EVEN POINT(BEP) SEBAGAI PERENCANAAN LABA POP ICE IBU VIVI DI KOTA SORONG Susana Magdalena Welly Muskita; Marice Yosefin Maniburi; Andhini Permatasari; Zemy Zemy; Ijel Ijel; Rais Rais; Dhestella Yosephina Aronggear
J-mace : Jurnal Penelitian Vol 5, No 1 (2025): JANUARI
Publisher : Universitas Victory Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34124/jmace.v5i1.75

Abstract

Penelitian yang menunjukkan perolehan hasil dari perhitungan Break Event point (BEP). Perhitungan break even point untuk perencanaan laba pop ice ibu vivi yang bertujuan agar dapat mengetahui laba yang diperoleh oleh tempat usaha tersebut. Metode yang digunakan dalam penelitian ini ialah metode kuantitatif yang melibatkan survei langsung dengan teknik tanya jawab kepada pemilik tempat usaha tersebut. Dari penelitian yang kami lakukan ini juga kami dapat memberitahukan kepada tempat usaha tersebut manfaat yang dari perhitungan break event point yang kami lakukan.
PENINGKATAN KOMPETENSI GURU DALAM PENGGUNAAN APLIKASI STATISTIK VISUAL DALAM ANALISIS DATA PENELITIAN DI SDN INPRES 2 TALISE KOTA PALU Gamayanti, Nurul Fiskia; Fajri, Mohammad; Rais, Rais; Yunita, Silva; Margareth, Cecilia
DedikasiMU : Journal of Community Service Vol 7 No 1 (2025): Maret
Publisher : Universitas Muhammadiyah Gresik

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30587/dedikasimu.v7i1.8570

Abstract

Data merupakan bagian yang tidak akan pernah lepas dari sebuah instansi baik instansi pemerintah maupun instansi swasta. Guru sebagai pegawai pemerintahan di tuntut untu terus berkembang dalam dunia pendidikan. Salah satu tugas pokok guru adalah melakukan penelitian yang berkaitan dengan tupoksi guru disekolah. Penelitian dapat dibagi menjadi dua yaitu penelitian kuantitatif maupun kualitatif. Dari kedua jenis penelitiab ini tidak lepas dari yang namanya data, dimana data tersebut perlu di visualisasikan diawal agar dapat menjadi gambaran awal dari data penelitian yang akan dikerjakan. Berdasarkan diskusi awal dengan Kepala Sekolah SDN 2 Talise Kota Palu, beliau menyatakan bahwa sebanyak 40 guru di SDN 2 Talise Kota Palu dari 45 total guru yang ada, masih membutuhkan poin bantuan dalam penggunaan aplikasi dalam melakukan visualisasi data statistik. Oleh sebab itu mereka sangat membutuhkan pelatihan dan pendampingan dalam menggunakan aplikasi visualisasi statistika. Dengan adanya kegiatan pengabdian ini dapat berupaya untuk membantu guru-guru di SDN 2 Talise Kota Palu dalam meningkatkan kompetensi dan keahlian guru dalam menggunakan aplikasi Terlebih lagi hasil yang diharapkan dalam kegiatan pelatihan ini adalah tersedianya draft jurnal yang telah siap untuk disubmit pada jurnal ilmiah nasional maupun internasional yang berkualitas.
MODELING THE IDX30 STOCK INDEX USING STEP FUNCTION INTERVENTION ANALYSIS Rais, Rais; Afriza, Dini Aprilia; Setiawan, Iman; Sain, Hartayuni; Fadjryani, Fadjryani; Junaidi, Junaidi
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 19 No 3 (2025): BAREKENG: Journal of Mathematics and Its Application
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/barekengvol19iss3pp2057-2068

Abstract

The significant decline in the IDX30 stock index occurred due to an intervention, namely the COVID-19 pandemic, which affected market stability and investment decisions. This study aims to model and forecast the IDX30 stock index using intervention analysis with a step function, which is very suitable for capturing long-term external shocks. The methodology used includes the ARIMA (AutoRegressive Integrated Moving Average) model combined with step function intervention analysis to account for structural changes due to external disturbances. The data used is sourced from investing.com, consisting of weekly IDX30 stock index prices from January 2019 to December 2023. The results show that the COVID-19 pandemic significantly impacted the IDX30 index, causing a drastic decline. The best model identified is ARIMA (1,2,1) with intervention parameters b = 0, s = 0, and r = 1. The forecasting results range from Rp. 488 to Rp. 505, with a Mean Absolute Percentage Error (MAPE) of 1.9404%, which shows the forecasting results are very good, indicating high forecasting accuracy. These findings highlight the effectiveness of intervention analysis in modeling financial time series data affected by external disturbances.
PENGENALAN PROTOTYPE ROBOT HUMAN FOLLOWING SEBAGAI ALAT BANTU PRAKTIKUM PADA SMK TAMAN JURUSAN TEKNIK INDUSTRI Basit, Abdul; Afriliana, Ida; Bakti, Very Kurnia; Rais, Rais
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 2 (2025): April
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i2.29834

Abstract

Abstrak: Teknologi robotika memberikan kemudahan dalam semua aspek mulai dari sektor pertanian, perikanan hingga dunia industri. Begitu halnya dengan robot pada sektor industri yang dirancang untuk memudahkan dalam produksi indusri, melakukan pekerjaan secara berulang dan beresiko tinggi, mengurangi tingkat human error serta meningkatkan kinerja produksi pada industri. Salah satu jenis robot yang umum digunakan dalam sektor industri antara lain yang bertipe Robot Human Following mengimplementasikan teknologi robotika dengan metode pembacaan hambatan yang dapat bergerak secara dinamis, robot ini merupakan hasil penelitian sebelumnya. Berkembangnya teknologi tidak dibarengi dengan pengetahuan robotika oleh pelajar terutama pada tingkatan Sekolah Menengah Kejuruan (SMK) yang memiliki beberapa kejuruan yang berbasis teknologi. Dari ini perlu adanya pengenalan dan pemahaman robotika pada SMK PGRI 1 Taman. Kegiatan pengabdian Masyarakat ini perlu dilakukan untuk meningkatkan pengetahuna siswa SMK terhadap dunia industri saat ini,khususnya tentang robotika. Penigkatan pengetahuan yang akan dicapai adalah, siswa kelas 10 ini belum mengetahui tentang dunia robotika, jadi tujuan pengabdian Masyarakat ini memberikan pengetahuan dasar robotika, melalui metode ceramah dan simulasi menggunakan wokwi.com untuk memperoleh pengetahuan dasar mikrokontrolernya. Dari hasil Pre-Test dengan wawancara pada siswa menyatakan mayoritas siswa belum mengenal dan tau tentang robotika. Dengan demikian pengenalan materi pengenalan ini deberikan yang menghasilkan ketertarikan dan pemahaman pada siswa yang ditunjukan hasil Post-Test dengan prosentase daya serap dengan daya serap materi mencapi 8 % sangat baik, 86 % baik dan 6 % cukup, maka terlihat peningkatan skill sekita 5%.Abstract: Robotics technology provides convenience in all aspects ranging from agriculture, fisheries to the industrial world. Likewise, robots in the industrial sector are designed to facilitate industrial production, do repetitive and high-risk work, reduce the level of human error and improve production performance in the industry. One type of robot that is commonly used in the industrial sector, among others, the Human Following Robot type implements robotics technology with an obstacle reading method that can move dynamically, this robot is the result of previous research. The development of technology is not accompanied by knowledge of robotics by students, especially at the Vocational High School (SMK) level which has several technology-based vocations. From this it is necessary to introduce and understand robotics at SMK PGRI 1 Taman. This community service activity needs to be carried out to increase the knowledge of SMK students about the current industrial world, especially about robotics. The increase in knowledge that will be achieved is that these 10th grade students do not know about the world of robotics, so the purpose of this community service is to provide basic knowledge of robotics, through lecture and simulation methods using wokwi.com to gain basic knowledge of microcontrollers. From the results of the Pre-Test with interviews with students, the majority of students stated that they did not recognize and know about robotics. The introduction of this introduction material is given which results in interest and understanding in students shown by the results of the Post-Test with the percentage of absorption with the absorption of the material reaching 8% very good, 86% good and 6% sufficient, then it can be seen that the skill increase is around 5%. 
REGIONS GROUPING IN CENTRAL SULAWESI PROVINCE BY TRANSMITTED DISEASE USING FUZZY GUSTAFSON KESSEL Fajri, Mohammad; Rais, Rais; Handayani, Lilies
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 17 No 1 (2023): BAREKENG: Journal of Mathematics and Its Applications
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (367.308 KB) | DOI: 10.30598/barekengvol17iss1pp0275-0284

Abstract

Health is one of the main indicators in determining the human development index. This is in contradiction with the situation in several areas in Indonesia where infectious diseases are the cause of death and have become extraordinary events. It was recorded in Central Sulawesi that in 2020 there were 8 extraordinary events due to infectious diseases which made this province become relatively high infectious diseases. One of the efforts that can be made to identify infectious diseases in an area is to form a grouping of locations into a group that has similarities and same characteristics. This is intended to provide information related to health in each region. Cluster analysis is one of method that can be used to grouping the data. Cluster analysis is the process of dividing data into a group based on the degree of similarity. Data with similar characteristics will be gathered in one group. One of the algorithms in cluster analysis is Fuzzy Gustafson Kessel which can produce relatively better groupings compared to the basic algorithms in cluster analysis. This study will use data on infectious diseases in Central Sulawesi Province with several recorded infectious diseases. From 13 regions, 5 clusters were formed. Clusters 1, 2 and 3 each consist of 3 regions, while clusters 4 and 5 each consist of 2 regions.
EFFECT OF REGULATOR VALVE OPENING VARIATIONS AND AIR SPEED ON DRYING RATE, FUEL CONSUMPTION, DRYING EFFICIENCY IN ANCHIE DRYING MACHINE Rais Rais; Mietra Anggara
Mechanical, Energy and Material (METAL) Vol. 1 No. 1 (2023): Juni: Mechanical, Energy and Material (METAL)
Publisher : Universitas Katolik Widya Karya Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59581/metal.v1i1.42

Abstract

Indonesia is a maritime country, rich in marine resources and marine biodiversity and non-biological diversity which spreads over 3,351 million km2 of sea area and 2,936 km2 of water area of the exclusive economic zone and continental shelf (BPS, 2018). The natural conditions of this vast sea are utilized by all people in Indonesia, including the people of Labuhan Bajo Village, Sumbawa. Anchovy (Stolephorus sp.) is one of the marine commodities developed as a superior economic commodity. Many efforts have been made by anchovy fishermen and collectors in an effort to maintain and develop anchovy processing, one of which is the drying process. This study aims to determine the effect of lpg gas regulator valve opening and air velocity on moisture content, fuel consumption, efficiency and drying rate of anchovy drying machine. The variables used are the variation of the regulator valve opening and the air exhaled by the fan from outside with speeds of 1.5 m/s, 2 m/s and 2.5 m/s. The results obtained in this study were that the highest drying rate was produced by the valve opening with a duration of 120 minutes with a drying rate of 0.630 g/min at an air speed of 2.5 m/s. Testing the water content by looking at the results of the anchovy samples and the results of the highest amount of water content, namely in the variation of valve opening 1 with a water content value of 19.12% at an inlet air speed of 2.5 m/s with a duration of drying time of 120 minutes. The highest efficiency value at 3/4 valve opening with a speed of 2 m/s with an inlet channel of 1 cm is 84.66%. Fuel consumption from the results of anchovy drying test with a temperature of 70 ℃ where the drying time is the fastest in accordance with the SNI quality standards for anchovy water content, namely opening the regulator valve 3/4 for 120 minutes, using 0.95 kg of gas.
Co-Authors A Amelia Abdul Basit Abdul Basit Afriza, Dini Aprilia Agusman Sahari Ahmad Maulana Andhini Permatasari Arfandi, Mohamad Rijal Arif Rahman Arif Rahman Arif Rakhman Basit, Abdul Bhakti, Very Kurnia Dairoh Dairoh David Bani Adam Dega Surono Wibowo, Dega Surono Denny Fauzi Dg. Pagiling, R K Dhestella Yosephina Aronggear Eko Budihartono, Eko Eliani Eliani Fadjryani, Fadjryani Fandi, Ahmad Firda Septiana Sanar Fitri, Yuhelni Gamayanti, Nurul Fiskia Haeril Haeril Handayani, L Harmila, D Hartayuni Sain Hemenius R Solossa Humam, M. Ida Afriliana Ida Ayu Putu Sri Widnyani Idris, N Ijel Ijel Iman Setiawan Islami, Mira Bela Iut Tri Utami Junaidi Junaidi Juni Wantoro Kadoena, Faldi Christiawan Leiwakabessy, Jeffry E.M. Lestawati, R Lilies Handayani M. Nishom Margareth, Cecilia Marice Yosefin Maniburi Mc Chambali Mietra Anggara Moh. Jusman Mohammad Fajri Muafiah Basir Muhamad Bakhar Nishom, M Nureni, Nureni Nurfajri Nurfajri, Nurfajri Nurokhim Nurokhim Rahmayani, R Ria Angela Rizqi Khoeruzzaman Safar Dwi Kurniawan Sahari, A Seftiani, W Sinaga, Novita Damayanti Slamet Wiyono Soumokil, Tontji Sulasmoro, Arfan Haqiqi Susana Magdalena Welly Muskita Tri Utami, I Tusilowati, Tusilowati Utami, I T Very Kurnia Bakti, Very Kurnia Vianna Syahrina Salam Vitasari, V R Wigati, Y Wildani Eko Nugroho, Wildani Eko Winarti Winarti Yerry Febrian Sabanise Yunita, Silva Yunus Rahawarin Zemy Zemy ZK Abdurahman Baizal