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Jurnal Informasi Sains dan Teknologi (ISAINTEK)
Published by Politeknik Negeri Fakfak
ISSN : 26210940     EISSN : 28292758     DOI : https://doi.org/10.55606/isaintek.v4i2
Core Subject : Science, Education,
Computer Science & IT Other
Jurnal Informasi, Sains dan Teknologi adalah jurnal yang ditujukan untuk publikasi artikel ilmiah yang diterbitkan oleh P3M Politeknik Negeri FakFak. Jurnal ini adalah Jurnal Informasi, Sains dan Teknologi yang bersifat peer-review dan terbuka. Bidang kajian dalam jurnal ini termasuk sub rumpun Ilmu Teknik Sipil dan Perencanaan Tata Ruang, Keteknikkan Industri, Teknik Elektrinika dan Komputer, Teknik Kebumian dan Perkapalan. Jurnal Informasi, Sains dan Teknologi menerima artikel dalam bahasa Inggris dan bahasa Indonesia dan diterbitkan 2 kali setahun: Juni dan Desember
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Sain dan Teknologi Air
Articles 122 Documents
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Optimasi Ekstraksi Nanokalsium Cangkang Sotong Dengan Metode Response Surface Methodology (RSM) Andi Santi; Metusalach; Arham Rusli; Muh Ali Arsyad; Ikbal Syukroni
Jurnal Informasi, Sains dan Teknologi Vol. 6 No. 02 (2023): Desember: Jurnal Informasi Sains dan Teknologi
Publisher : Politeknik Negeri FakFak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/isaintek.v6i02.166

Abstract

Penelitian ini bertujuan untuk membuat dan menganalisis karakteristik nanokalsium dengan metode presipitasi dari limbah cangkang sotong. Presipitasi dilakukan menggunakan NaOH 3N. Selain itu penelitian ini dirancang untuk mengetahui kondisi optimum proses ekstraksi nanokalsium dari cangkang sotong melalui Response Surface Methodology(RSM) menggunakan desain faktorial dengan 30 perlakuan. Pengujian dilakukan untuk mengetahui pengaruh variabel bebas (konsentrasi pelarut, lama waktu ekstraksi dan suhu ekstraksi) terhadap respon kadar kalsium, derajat putih dan rendemen pada nanokalsium cangkang sotong.  Hasil Penelitian ini menunjukkan bahwa optimasi proses ekstraksi nanokalsium cangkang sotong dengan metode Response Surface Methodology (RSM) diperoleh pada perlakuan ekstraksi dengan konsentrasi HCl (X1) 2 N, waktu ekstraksi (X2) 1,5 jam dan suhu ekstraksi (X3) 93ºC, sedangkan nilai optimasi respon yang dihasilkan dari kadar kalsium (Y1) 58,2 x105mg/g, derajat putih (Y2) 97,53%  dan rendemen (Y3) 4,59 %.  Konsentrasi optimum ekstraksi nanokalsium cangkang sotong memiliki nilai derajat keinginan (desirability) 0,98
Analisis Perencanaan Geometrik Jalan di Kampung Tunas Gain Distrik Fakfak Timur Patanduk, James Williams Tiranda
Jurnal Informasi, Sains dan Teknologi Vol. 6 No. 02 (2023): Desember: Jurnal Informasi Sains dan Teknologi
Publisher : Politeknik Negeri FakFak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/isaintek.v6i02.168

Abstract

Kondisi jalan di Kabupaten Fakfak tiap tahun mengalami perubahan dan peningkatan ke arah yang lebih baik. Salah satu ruas jalan alternatif yang sementara direncanakan adalah Perencanaan Geometrik Jalan Di Kampung Tunas Gain Distrik Fakfak Timur jalan ini diperuntukan untuk menunjang prasarana lalu lintas disekitar pemukiman penduduk. Ruas jalan yang akan dibangun sepanjang 400 m. Tujuan penelitian ini untuk mengetahui gambaran kondisi eksisting lokasi perencanaan dan mendesain geometrik pada lokasi pengukuran. Analisa yang dilakukan pada penelitian ini meliputi alinyemen vertikal, alinyemen horizontal, volume lalu lintas. Hasil penelitian yang dilakukan tentang kondisi eksisting lokasi Perencanaan Geometrik Jalan Di Kampung Tunas Gain Distrik Fakfak Timur, jarak pandang adalah 35,75 m dan alinyemen horizontal terdapat dua tikungan, sudut tikungan 40°, 46°, nilai panjang lengkung lingkaran tikungan I = 196,22 m, tikungan II = 166,32 m, sudut spiral 3,34°, sudut lingkaran tikungan I 39.32°, tikungan II = 33.32° dengan jarak SC dan CS adalah 45 m, super elevasi rencana adalah 5% dan lengkung peralihan sepanjang tikungan I =148,72 m, tikungan II =131,52 m. Desain geometrik jalan raya maka aturan klasifikasi medan yang direncanakan termasuk dalam klasifikasi bukit.
Impresi Karyawan terhadap Penggunaan Aplikasi Artificial Intelligence Elsa Speak pada PT Elang Mahkota Teknologi Saputri, Tri Bata Biru; Andrian, Pieter
Jurnal Informasi, Sains dan Teknologi Vol. 7 No. 1 (2024): Juni: Jurnal Informasi Sains dan Teknologi
Publisher : Politeknik Negeri FakFak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/isaintek.v7i1.176

Abstract

Foreign language competence makes the main capital in carrying out work. Someone with foreign language skills, especially English, can negotiate and give presentations more fluently. Along with this, the opportunity to build a network of connections will be extended, As a result, business opportunities are easier to achieve. Elsa (English Learning Speech Assistant) is an English learning application that applies artificial intelligence and speech recognition. This learning application focuses on the speaking ability. The purpose of the research is to find out the employee's impression of the use of Elsa Speak on PT Elang Mahkota Teknologi. This research is a descriptive research with qualitative and quantitative approaches. The research subjects were 21 employees. They are the division representatives at PT Elang Mahkota Teknologi. The results of the research shows that employees have a positive response to the presence of Elsa Speak to improve speaking skills. The convenience and practicality presented by Elsa Speak is very suitable for the learners. They can learns anytime and anywhere. They agree that the features presented by Elsa have a good influence on speaking ability. In addition, the individualized curriculum is able to adjust to the weaknesses of each learner.
Rancang Bangun Sistem Absensi Terintegrasi Mahasiswa Jurusan Manajemen Informatika Politeknik Negeri Fakfak Mualo, Ardhyansyah; Basri, Hasan
Jurnal Informasi, Sains dan Teknologi Vol. 7 No. 1 (2024): Juni: Jurnal Informasi Sains dan Teknologi
Publisher : Politeknik Negeri FakFak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/isaintek.v7i1.178

Abstract

Different types of attendance systems are used in various settings such as schools and companies, namely web-based systems that can be used as a substitute for absenteeism. Another attendance system being developed is a QR Code based attendance system which requires user verification using RFID fingerprint or voice command. It is necessary to develop an attendance system that uses RFID sensors at universities as a technological adaptation.Currently, lecture attendance at the Fakfak State Polytechnic College, especially in the Informatics Management Department, still uses a manual attendance system, namely taking attendance of students using an attendance book every class hour. Running absenteeism creates a problem, namely that it is impractical. The impracticality of this system can be that it takes a lot of time to register students one by one, thereby cutting into course hours. Not to mention the phenomenon of leaving absences which usually takes advantage of lecturers' negligence to sign the absences of friends who are unable to come. You can also directly sign attendance from the first meeting to the last meeting. So the author conducted research on making student attendance tools that use RFID, and can monitor student attendance data by lecturers via a website. Based on these problems, an attendance system based on RFID (Radio Frequency Identification) using NodeMCU is expected to be able to solve these problems.
Pengaruh Pembebanan Terhadap Kestabilan Ferekuensi pada Mesin Komatsu-01 PLTD Fakfak Kelkulat, Ramla; Rusliadi, Rusliadi; Husnah, Nurul
Jurnal Informasi, Sains dan Teknologi Vol. 7 No. 1 (2024): Juni: Jurnal Informasi Sains dan Teknologi
Publisher : Politeknik Negeri FakFak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/isaintek.v7i1.182

Abstract

Generator merupakan alat yang digunakan untuk mengubah energi gerak mekanik menjadi energi listrik dengan frekuensi putaran rotor sama dengan frekuensi tegangan yang dibangkitkan. Generator menggunakan prinsip elektromagnetik dalam pengoperasian energinya. Permasalahan yang sering muncul pada generator adalah penggunaan beban yang berlebihan sehingga menimbulkan perlambatan pada putaran rotor. Ketika kebutuhan beban meningkat dan tidak dapat dipenuhi oleh generator maka perlu dilakukan pelepasan beban pada system. Hal ini dimaksudkan untuk menstabilkan frekuensi serta keseimbangan antara daya generator dan beban. Pada penelitian ini telah diketahui bahwa pembebanan sangat berpengaruh terhadap frekuensi generator. Berdasarkan hasil pengukuran beban diketahui bahwa beban sebesar 350 kW, 400 kW dan 440 kW menyebabkan terjadinya penurunan frekuensi menjadi 49,8 Hz, 49,2 Hz dan 49 Hz.
Desain, Implementasi Dan Evaluasi Sistem Informasi Penggajian Di Universitas Berbasis Web Villy Satria Praditha; Ario Harry Prayogo; Anranur Uwaisy Marchiningrum; Feddy Dea Reskyadita; Nurjayanti Nurjayanti; Utami Kusuma Dewi; Ryan Lingga Wicaksono
Jurnal Informasi, Sains dan Teknologi Vol. 7 No. 1 (2024): Juni: Jurnal Informasi Sains dan Teknologi
Publisher : Politeknik Negeri FakFak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/isaintek.v7i1.183

Abstract

The university's payroll process includes information about various employees, including lecturers and administrative employees with varying details such as personal data, position and salary information. This research is focused on rebuilding the payroll application due to several shortcomings or challenges associated with the existing application. This research presents a detailed investigation into the design, implementation, and evaluation of a payroll application tailored for the university environment. This research covers main aspects such as use case analysis, relational database schema, application display and testing. Use case analysis begins with identifying and understanding the various scenarios and requirements specific to a university payroll system. Through thorough exploration of user roles, system functionality. Relational database schemas are designed to efficiently store and manage complex payroll data, ensuring accurate and efficient processing. Compatibility testing plays an important role in ensuring the integration of payroll applications with existing systems. This research performs black-box testing to test application functionality and application compatibility testing with various hardware configurations, operating systems, and web browsers to ensure optimal performance and accessibility. The results of this research contribute to the advancement of payroll management and provide guidance for the development of deep payroll applications in universities.
Techno-Economic Analysis Of Hydrogen Storage Technologies For Transport Applications Fachri Munadi; Dijan Supramono
Jurnal Informasi, Sains dan Teknologi Vol. 7 No. 1 (2024): Juni: Jurnal Informasi Sains dan Teknologi
Publisher : Politeknik Negeri FakFak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/isaintek.v7i01.184

Abstract

he world's energy industries contribute 87% to the increase in global greenhouse gases. To reduce global greenhouse gas emissions, hydrogen as clean energy is an alternative energy source with a gravimetric energy density of 120 MJ/kg and a volumetric density of 0.0824 kg/m3. The main challenge of hydrogen as an energy carrier is its low volumetric density, thus requiring hydrogen storage technology at higher volumetric densities. Hydrogen storage systems are crucial to the hydrogen supply chain process, especially in terms of its economics. The hydrogen storage system consists of hydrogenation, transportation, and dehydrogenation processes. This paper uses the techno-economic analysis of five types of hydrogen storage technologies: compressed hydrogen, liquid Hydrogen, liquid organic hydrogen carrier, metal hydride, and ammonia. Hysys was introduced to help process design, process modeling, and equipment sizing of each technology. System costs ($/kg) are determined based on projected Capital Expenditure (CapEx) and Operational expenditure (OpEx) of each hydrogenation and dehydrogenation process, as well as shipping transportation cost at 2000 km. The results show that liquid organic hydrogen carrier had the lowest system cost of $2.84/kg, followed by metal hydride at $2.95/kg, compressed hydrogen at $3.33/kg, ammonia at $7.21/kg, and liquid hydrogen at $11.51/kg. However, the storage efficiency of liquid organic hydrogen carriers is only 8.73%, compared to compressed hydrogen at 99%. The results show that the cost of hydrogen storage systems needs to be significantly reduced for long-term and large-scale applications.
Pengaruh Penerapan Model Pembelajaran Creative Problem Solving (CPS) Terhadap Hasil Belajar Siswa Mas Terpadu Guguak Randah Pada Ekstrakulikuler TIK Rabiatul Mauida; Supratman Zakir; Wedra Aprison; Liza Efriyanti
Jurnal Informasi, Sains dan Teknologi Vol. 7 No. 1 (2024): Juni: Jurnal Informasi Sains dan Teknologi
Publisher : Politeknik Negeri FakFak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/isaintek.v7i01.185

Abstract

This study aims to improve extracurricular learning outcomes in class X of Guguak Randah integrated MAS by applying a creative problem-solving learning model. Through interviews with the integrated teacher, Mrs. Syarifah,, it was revealed that the learning process still relies on the lecture method and teacher-centered approach which causes a lack of student interest in learning. To overcome this problem, the researcher is interested in applying a creative problem-solving learning model so that students are more involved and their learning outcomes improve. The research used a quasi-experimental method with a post-test only control group design. In this context, the use of the Creative Problem Solving model on students of class X IPA integrated MAS Guguak Randah showed a significant effect on learning outcomes. The t-test results confirmed a significant difference between the experimental group that applied the creative learning model and the control group. Thus, the application of this model can stimulate student creativity, improve learning interest, and make the learning process more interesting and interactive.
Economic Evaluation and Sensitivity Analysis of Methanol Plant from Glycerol Meilani Kusuma Wati; Elmi Sunarya; Nada Zafirah; Hari Rionaldo; Zulfansyah Zulfansyah
Jurnal Informasi, Sains dan Teknologi Vol. 7 No. 1 (2024): Juni: Jurnal Informasi Sains dan Teknologi
Publisher : Politeknik Negeri FakFak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/isaintek.v7i1.186

Abstract

Methanol plant from glycerol is a good prospect in Indonesia. Until 2021, methanol is only supplied by one methanol producer located in East Kalimantan, namely PT. Kalimantan Timur with a production capacity of 660,000 tons/year. Therefore, the methanol plant from glycerol has a very important meaning for the acquisition of foreign exchange as well as employment. This article presents an economic evaluation of a methanol plant from glycerol with a capacity of 40,000 tons/year. Profitability analysis calculation is done by two methods, the method that do not consider the time value of money and the method that consider the time value of money. The results of the method that do not consider the time value of money obtained ROI value (before tax) 34.62%, ROI value (after tax) 24.24%, and the value of PBP 2.98 years. Using the method that consider the time value of money, the NPW value was Rp. 1,458 billion and the DCFRR / IRR was 39.25%. The sensitivity analysis also deserves to see the effect of the factor that influence the economic viability, and provide more information for the optimization of Methanol production.
Kajian Arsitektur Ekologis pada Kompleks Istora Senayan Jakarta Shendy Ullilazmy, Figo
Jurnal Informasi, Sains dan Teknologi Vol. 7 No. 1 (2024): Juni: Jurnal Informasi Sains dan Teknologi
Publisher : Politeknik Negeri FakFak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/isaintek.v7i1.187

Abstract

Perubahan iklim telah secara signifikan mempengaruhi arsitektur dan lingkungan, termasuk di Indonesia, negara beriklim tropis yang rawan terhadap perubahan iklim. Pentingnya pengelolaan sumber daya alam dengan bijaksana menjadi semakin terasa. Beberapa bangunan telah berhasil menyesuaikan diri dengan tantangan ini, sementara yang lain tertinggal dalam adaptasi. Praktik arsitektur ekologis menjadi krusial dalam mengurangi dampak negatif terhadap lingkungan. Penelitian ini menyoroti pentingnya menerapkan prinsip-prinsip arsitektur ekologis, seperti kenyamanan termal, pemilihan material, respons terhadap kondisi tapak bangunan, dan lain-lain. Fokusnya adalah Kompleks Istora Senayan Jakarta. Dengan metode kualitatif deskriptif dan merujuk pada teori Heinz Frick tentang desain arsitektur ekologis, penelitian ini menunjukkan keberhasilan dalam mengintegrasikan aspek-aspek ekologis dalam desain bangunan. Hasilnya menegaskan bahwa kolaborasi antara praktisi arsitektur dan ilmu lingkungan penting untuk merancang bangunan ramah lingkungan di masa depan. Penelitian ini memberikan pandangan tentang peran arsitektur dalam menghadapi tantangan perubahan iklim.

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