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All Journal JURNAL SAINS DAN TEKNOLOGI INDONESIA JURNAL CRANKSHAFT Scientific Journal of Mechanical Engineering Kinematika SPEKTRAL : Journal of Communications, Antennas and Propagation Jurnal Ilmu Komputer dan Teknologi (IKOMTI) KOLECER: Scientific Journal of Mechanical Engineering
mulyono, Sidik
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Automotive Engineering Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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PREDIKSI KANDUNGAN NITROGEN DAUN PADI DENGAN ANALISIS PERGESERAN TEPI KANAL MERAH (RED EDGE SHIFT) DATA HIPERSPEKTRAL nadirah, nadirah; Muljosukojo, Bangun; Hariyanto, Teguh; Sadly, M; Evri, M; mulyono, Sidik
Jurnal Sains dan Teknologi Indonesia Vol. 11 No. 3 (2009)
Publisher : Badan Pengkajian dan Penerapan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (151.733 KB) | DOI: 10.29122/jsti.v11i3.838

Abstract

Canopy hyperspectral with various growth stages measured by using field spectroradiometer (350 - 1000 nm) corresponded to leaf Nitrogen content of three rice cultivars (Ciherang, Cilamaya and IR64) during growth season in Java Island,Indonesia. Coinciding with hyperspectral measurement, biochemical parameter such as leaf Nitrogen content (g/100 gr) was analyzed from destructive biomass sample through laboratory analysis. The potential narrow band in the red edgeregion was investigated to predict leaf nitrogen content (N content) with applying modified polynomial interpolation (MPI) and modified four points linear interpolation (MFLI) methods. First derivative reflectance derived from reflectance data andsubsequently used in analysis of Red Edge Position (REP). The correlation REPMFLI was generally stronger than REP-MPI attributed to leaf N content for several level of N application that indicated by value of R2. The response of REP-MFLItoward N level 69 kg/ha exhibited the most significant correlation (R2 = 0.754) than other correlations. Meanwhile, the response of REP-MPI toward N level 161 kg/ha denoted the most significant correlation (R2 = 0.8) than other correlations. The highest correlation using REP-MPI (R2 = 0.8) to predict leaf N contentdemonstrated slightly higher than that of REP- MFLI (R2 = 0.754). In general both REP-MFLI and REP-MPI represented somewhat similar response toward N levels, such as 103.5 kg/h, 115 kg/ha. The exploration of characteristics of red edge shiftis a fundamental point in developing rapid and precise prediction for biochemical parameter. In addition, its prediction capability was promising to support crop farming management.
ANALISIS CETAKAN PLASTIK INJEKSI SPESIMEN UJI TARIK MELALUI SIMULASI PLASTIK INJEKSI MENGGUNAKAN AUTODESK FUSION 360 Supandi; Gamayel, Adhes; Kasum; Mulyono, Sidik; Zaenudin, Mohamad
Scientific Journal of Mechanical Engineering Kinematika Vol 9 No 1 (2024): SJME Kinematika Juni 2024
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v9i1.278

Abstract

Plastic injection (injection molding) is a method of forming products from plastic pellets into various daily necessities products. In terms of supporting daily needs, plastic injection molded products must meet criteria, such as strength, ductility, flexibility, hardness, etc. One of the easiest ways is to do a tensile test. In this research, mold with the shape of tensile test specimen products was carried out through several process stages, namely design and simulation, fabrication, and product testing. Autodesk Fusion 360 software is used in the design process to simulate and predict material flow during the injection process into the mold with several parameter variations in the form of time, material temperature and mold temperature. The results obtained were by using polypropylene (PP) plastic material, the maximum injection conditions were by suing a melting temperature of 230°C and a mold temperature of 50°C with an injection time of 14.5 seconds, where it was predicted that the product would be easy to fill and the resulting quality would reach 100% good. This research has succeeded in designing and predicting a plastic injection process that can be utilized in the plastic molding process through the actual injection process in industries that use polypropylene material.
Analisa Hasil Sambungan Las ( Pipa STKM 13B Dan Plat SPH 440) Dengan Pengujian Tarik dan Photomacro Fikri, Luqman; Simamora, Yulianto; Priyadi, Muhammad Untung Zaenal; Saleh, Yasya Khalif Perdana; Zaenudin, Mohammad; Mulyono, Sidik; Gamayel, Adhes; Triwiyanto, Askar; Jujur, I nyoman
JURNAL CRANKSHAFT Vol 7, No 2 (2024): Jurnal Crankshaft Vol.7 No.2 (2024)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/cra.v7i2.12657

Abstract

ABSTRACTGMAW (Gas Metal Arc Welding) is a fast, versatile welding technique that can be used in various positions, but it often results porosity in welded joints.This research aims to analysis of the welded joints of STKM13B pipe and SPD 440 plate using tensile and micro testing, using welding a current of 18 and varying voltages of 110, 130, and 150. The results is the shape of the welded joint of the plate and pipe is perfectly connected, the tensile test results showed that the ultimate strength values for specimen 1, 2, 3 (A110/V18, A130/V18, A150/V18) were (18,959, 27,886, 40,005 N) respectively. The highest ultimate strength values were obtained from the specimens (A150/V18) while the lowest ultimate strength value was obtained from specimen (A110/V18). The use of welding current strongly correlates with ultimate strength value and photomacro results, with higher currents resulting in higher density levels, minimizing porosity, and increasing ultimate strength. Keywords: GMAW Welding, Tensile Test, Macro Optical Test. 
Analisis AWS, Microsoft Azure, dan GCP terhadap Latency, Throughput, IAM, dan Firewall Islam, Ichsani; Setiawan, Antonius; Jaenul, Ariep; Mulyono, Sidik; Hertin, Revita; Wibowo, Aryo; Nisa, Khoirun; Wibisono, Sony
Jurnal IT UHB Vol 6 No 2 (2025): Jurnal Ilmu Komputer dan Teknologi
Publisher : Universitas Harapan Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35960/ikomti.v6i2.1795

Abstract

This study evaluates the performance and security of Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform (GCP) through technical testing and user experience surveys. Testing with Apache JMeter reveals that GCP has the highest throughput (61.7 bps) and best speed, while AWS has the lowest response time (38.16 ms) and Latency (507 ms). Performance data is presented in tables and graphs. In terms of security, AWS and Azure offer comprehensive features including role-based access control and multi-factor authentication, while GCP emphasizes network protection. Reliability analysis using Cronbach’s Alpha indicates excellent internal consistency (α > 0.9), with ANOVA tests showing significant differences in Throughput, Speed, and Firewall among providers, while other parameters show no significant differences. The findings provide insights into the strengths and weaknesses of each Cloud service provider.
PROTOTIPE MOTORIZED POINTING ANTENNA VERY SMALL APERTURE TERMINAL (VSAT) GEOSTASIONER MENGGUNAKAN ARDUINO MEGA 2560 SEBAGAI MAIN CONTROL UNIT Setiawan, Antonius Darma; Hasanah, Uswatun; Jaenul, Ariep; Mulyono, Sidik
Spektral Vol. 4 No. 2 (2023): Oktober 2023
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/spektral.v4i2.6648

Abstract

Very Small Aperture Terminal (VSAT) merupakan salah satu jenis teknologi telekomunikasi yang menggunakan satelit sebagai media transmisi nya. VSAT berperan sebagai transceiver gelombang radio dengan menggunakan antenna berbentuk parabola. VSAT dapat membangun jaringan komunikasi secara global dan tersentralisasi dalam waktu cepat hanya dengan memiliki kelistrikan yang stabil dan ruang terbuka yang terbatas. Sebagai upaya pengembangan VSAT, salah satu inovasi yang dibuat adalah menjadikan proses pointing VSAT menjadi motorized dengan mengintegrasikan mikrokontroller untuk kontrol. Dengan menggunakan metode research and development, penulis melakukan riset pada penelitian terdahulu dan mengembangkan gap yang ada dengan penyesuaian terhadap kebutuhan di lapangan. Salah satu tujuan prototipe ini dibuat adalah dengan tujuan dapat diimplementasikan secara universal pada seluruh perangkat VSAT GEO dengan hanya memerlukan penyesuaian mekanikal, bukan pada program yang dibuat. Pada penelitian ini, Arduino Mega 2560 berperan sebagai main control unit yang diintegrasikan dengan beberapa sensor pendukung utama yaitu GPS NEO6MV2, compass HMC5883L, dan accelerometer MPU6050. Hasil dari penelitian ini adalah sensor GPS dapat melakukan deteksi lokasi dengan akurat serta HMC5883L dan MPU6050 dapat digunakan sebagai deteksi azimuth dan elevasi. Kesimpulannya prototipe ini sudah sesuai dengan hakikat proses pointing VSAT dan dapat diuji langsung pada perangkat VSAT GEO dengan penyesuaian mekanikal.
Analisis Pengaruh Konfigurasi Mata Pisau Pada Mesin Pencacah Sederhana Terhadap Kualitas Cacahan Material Pla dan Pet Fikri, Muhammad Luqman Saiful; Saleh, Yasya Khalif Perdana; Mulyono, Sidik; Danu , Ahmad
KOLECER Scientific Journal of Mechanical Engineering Vol. 1 No. 2 (2025): September 2025
Publisher : Program Studi Teknik Mesin Fakultas Teknik Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/ksjme.v1i2.27862

Abstract

In everyday life, both organic and inorganic waste remain persistent problems, with plastic waste being a significant environmental concern in Indonesia. According to the Ministry of Environment and Forestry, the national waste volume in 2021 was estimated at 68.5 million tons. Although most plastics are recyclable, efficient recycling depends on proper size reduction mechanisms. Polyethylene terephthalate (PET) is one of the most commonly used plastics, and polylactic acid (PLA) is also increasingly applied due to its biodegradable properties. However, there is a lack of comparative studies on blade design performance for shredding different plastic types. This study aims to develop a plastic shredder capable of processing PET, PLA, and their mixtures, and to evaluate the effect of three blade configurations—straight, zig-zag, and wave—on particle size outcomes. Experimental testing revealed that straight blades produced the largest average particle sizes: 5.63 mm for PET and 5.04 mm for PLA. Zig-zag blades yielded the smallest sizes: 4.70 mm for PET and 2.36 mm for PLA. The wave blade configuration produced intermediate results: 5.60 mm for PET and 4.17 mm for PLA. PLA consistently resulted in smaller particles than PET across all configurations. The zig-zag blade design proved most effective for fine shredding, particularly for PLA material. These results highlight the importance of blade geometry in optimizing shredding performance and plastic recyclability. This research provides insights for the development of efficient, small-scale recycling machines tailored to different plastic types and offers a practical approach for reducing plastic waste in local communities
Co-Authors Adhes Gamayel Ariep Jaenul Bangun Muljosukojo Danu , Ahmad Evri, M Fikri, Luqman Fikri, Muhammad Luqman Saiful Hertin, Revita I Nyoman Jujur Islam, Ichsani Kasum Khoirun Nisa Mohamad Zaenudin Muhammad Untung Zaenal Priyadi Nadirah, Nadirah Sadly, M Saleh, Yasya Khalif Perdana Setiawan, Antonius Setiawan, Antonius Darma Simamora, Yulianto Teguh Hariyanto, Teguh Triwiyanto, Askar Uswatun Hasanah Wibisono, Sony Wibowo, Aryo Yasya Khalif Perdana Saleh Zaenudin, Mohammad