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JITEK (Jurnal Ilmiah Teknosains)
Published by Universitas PGRI Semarang
ISSN : 24609986     EISSN : 24769436     DOI : https://doi.org/10.26877/jitek
Core Subject : Health, Science, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Mechanical Engineering Veterinary
JITek: Jurnal Ilmiah Teknosains 2476-9436 (media online) & 2460-9986 (media cetak) published scientific papers on the results of applied and natural science research covering the fields of science including engineering (civil, chemistry, architecture, electrical, mechanical, enviromental), food technology, agriculture, physics, biology, mathematics, chemistry and technical information. The manuscript must be original research, written in Bahasa Indonesia or English, and not be simultaneously submitted to another journal or conference. Manuscripts will be reviewed by an expert editor and managing editor. The journal has been indexed in Google Scholar, Dimensions and Crossref.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 10 Documents
 1 
Search results for , issue "Vol 10, No 1/Mei (2024): Jitek" : 10 Documents clear
ANALISIS EKONOMI PADA PERENCANAAN PEMBANGUNAN GEDUNG HOTEL DI KOTA PAGAR ALAM Niti PY, Syukuria; Dhiniati, Fameira; Itteridi, Vike; Edowinsyah, Edowinsyah
(JITEK)Jurnal Ilmiah Teknosains Vol 10, No 1/Mei (2024): Jitek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v10i1/Mei.19436

Abstract

Kota Pagar Alam merupakan kawasan Strategis Pariwisata yang berkembang cukup pesat, melihat berkembangnya pariwisata yang semakin marak di tandai munculnya bisnis sekitar salah satunya seperti bisnis perhotelan. Proyek perhotelan yang dibangun dengan modal investasi mempunyai nilai ekonomis dan manfaat yang baru dapat dinikmati setelah beberapa tahun proyek tersebut berjalan, atau dengan kata lain apabila proyek tersebut telah menghasilkan keuntungan. Tujuan penelitian adalah perencanaan Pembangunan hotel di Kota Pagar Alam. Metode yang digunakan untuk mengetahui kelayakan perencanaan proyek perhotelan, maka perlu dilakukan evaluasi proyek dengan memperhitungkan berbagai kemungkinan yang akan terjadi yaitu NPV, IRR, BCR, serta PP. Berdasarkan hasil analisis kelayakan ekonomi Pembangunan Hotel di Kota Pagar Alam dengan biaya investasikan adalah Rp. 17.435.726.833. Metode Net Present Value (NPV) sebesar Rp. 25.295.413.578, Internal Rate of Return (IRR) positif sebesar Rp. 7.859.686.745 dan Negative sebesar Rp. (451.485.803), dan Benefit Cash Ratio (BCR) adalah 2.73 dan Payback Periode pada 8 tahun 2 bulan. Dari hasil analisis bahwa hal ini menunjukkan bahwa proyek pembangunan Hotel di Kota Pagar Alam adalah layak.
PENGARUH PEMBERIAN FERMENTASI PROBIOTIK EM4 PADA PELET IKAN TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP IKAN LELE (CLARIAS SP.) SISTEM AQUAPONIK BUDIKDAMBER TANAMAN KANGKUNG Nurwahyunani, Atip; Rahayu, Praptining; Slamet Rahayu, Kukoh Puji; Amila Hartanto, Maisabata Farah; Saputri, Amila; Indriastuti, Chindy Arneta; Anwar, Lahib
(JITEK)Jurnal Ilmiah Teknosains Vol 10, No 1/Mei (2024): Jitek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v10i1/Mei.19003

Abstract

Ikan lele merupakan ikan budidaya yang sering banyak dikembangkan di masyarakat umum apalagi di Indonesia. Ikan lele sangat digemari oleh masyarakat karena mudah dibudidayakan. Hal ini ikan lele apalagi jenis sangkuriang (Clarius sp) memiliki keunggulan berupa toleransi terhadap lingkungan. Salah satunya adalah menggunakan budidaya aquaponik berupa Budidamber. Aquaponik budidamber memiliki kelebihan yaitu tempat yang tidak terlalu memakan banyak dan juga dalam dapat menjadi media tanam tanaman berupa hidropononik. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh pemberian fermentasi probiotik EM4 pada pakan pelet ikan terhadap pertumbuhan dan kelangsungan hidup ikan lele (Clarias sp.) dengan sistem aquaponik budikdamber. Penelitian ini menggunakan metode eksperimental dengan Rancangan Acak Lengkap dengan memberikan tiga perlakuan yaitu pemberian dosis probiotik EM4 yang berbeda pada pakan pelet ikan lele. Perlakuan yang digunakan dalam penelitian ini adalah: Perlakuan P0 = tanpa pemberian EM4 pada pellet ikan, Perlakuan P1 = pemberian EM4 pada pellet ikan dengan dosis 1:2, Perlakuan P2 = pemberian EM4 pada pellet ikan dengan dosis 1:1. Data penelitian dianalisis secara statistik dengan menggunakan analisis sidik ragam (ANOVA).  Parameter yang digunakan yaitu pertumbuhan panjang ikan yang diukur menggunakan penggaris, pertumbuhan berat ikan yang diukur mengukur timbangan, tingkat kelangsungan hidup ikan, warna air, bau atau aroma air, serta pH dan suhu air. Dari hasil pengukuran yang dilakukan, panjang ikan dan pertumbuhan berat badan ikan mengalami kenaikan sebesar 1cm namun pemberian kosentrasi tinggi mengakibatkan sintasan pada kelangsungan hidup pada ikan mengalami penurunan. Serta pH air pada budidamber aquaponik juga mengalami perubahan pada setiap kosentrasi yang diberikan sehingga semakin tinggi kosentrasi yang berikan maka semakin stabil pH air pada budikdamber tersebut.  
ANALISIS TINGKAT BAHAYA BANJIR BANDANG DENGAN METODE FFPI DI SUB DAS AIR BETUNG Azizah, Barrorotul
(JITEK)Jurnal Ilmiah Teknosains Vol 10, No 1/Mei (2024): Jitek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v10i1/Mei.18433

Abstract

Pagar Alam City is one of the areas in Indonesia which is a disaster-prone area, one of which is flash floods. Pagar Alam City is very at risk of flash floods based on DIBI from BNPB in the period 2012 to 2022, in the last 10 years there have been 5 flash floods with damage to 1 unit of house severely damaged and some debris washed away in parts of the building, damage to irrigation canals ± 50 m long and 2 m high, damage to retaining walls 25 m long and 40 m high and ± 30 ha of cropland damaged and ± 73 hectares of agricultural land affected by the disaster. This research was conducted to determine the level of vulnerability to flash floods in the Air Betung sub-watershed. Hazard level mapping is a step taken to determine the level of vulnerability by analyzing slope maps, land use maps, soil texture maps and canopy cover maps. The vulnerability index was analyzed using the FFPI method processed in the Arcgis 10.4 program. The results of the vulnerability index are classified into three classes, namely low class, medium class and high class. Pagar Alam Selatan sub-district is a sub-district that has a high index value, while Pajar Bulan sub-district has the lowest index of flash flood vulnerability in the Air Betung sub-watershed.
PENGEMBANGAN MEDIA PEMBELAJARAN KIMIA BERBASIS AUGMENTED REALITY MATERI KONFIGURASI ELEKTRON DENGAN METODE BOHR AND STONER PADA KELAS X SMA Priyolistiyanto, Andi; Sudargo, Sudargo; Ulfatunni'mah, Dewi
(JITEK)Jurnal Ilmiah Teknosains Vol 10, No 1/Mei (2024): Jitek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v10i1/Mei.19034

Abstract

Penelitian ini bertujuan untuk mengembangkan media pembelajaran kimia berbasis Augmented Reality (AR) untuk materi konfigurasi elektron dengan metode Bohr dan Stoner pada kelas X SMA. Metode penelitian yang digunakan adalah Research and Development (RD) dengan model pengembangan ADDIE (Analysis, Design, Development, Implementation, Evaluation). Pengumpulan data dilakukan melalui observasi, angket, dan uji coba terhadap siswa kelas X SMA. Hasil penelitian menunjukkan bahwa pengembangan media pembelajaran kimia berbasis AR mampu menghasilkan produk yang sangat baik dan mudah digunakan dalam konteks pembelajaran yang praktis. Respon positif juga diperoleh dari siswa terkait penggunaan media AR dalam proses pembelajaran. Media ini dapat menjadi alternatif yang efektif dalam meningkatkan kualitas pembelajaran kimia di sekolah menengah atas, dengan memanfaatkan teknologi AR untuk memperkuat pemahaman konsep abstrak seperti konfigurasi elektron. Penelitian ini diharapkan dapat memberikan kontribusi positif dalam upaya peningkatan kualitas pembelajaran kimia di tingkat SMA.Kata kunci: Augmented Reality, Konfigurasi elektron, Metode Bohr dan Stoner.
STABILITAS WARNA DAN PERUBAHAN pH WEDANG UWUH SIAP MINUM SELAMA PENYIMPANAN Septiyani, Retnosyari; Rahayu, Wahidah Mahanani; Permadi, Adi
(JITEK)Jurnal Ilmiah Teknosains Vol 10, No 1/Mei (2024): Jitek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v10i1/Mei.18790

Abstract

Wedang uwuh is a traditional drink from Yogyakarta with various product forms. Ready-to-drink wedang uwuh is a more practical and economical alternative for consumption, but with limited color stability around 1 day. This research aims to examine the color stability of ready-to-drink wedang uwuh at varying temperatures and brewing times, at room and cool temperature, and with sugar or Na-benzoate addition. The experiment was carried out in a Completely Randomized Design with a variety of brewing conditions of temperature (75°C, 85°C, and 95°C) and time (10, 15, and 20 minutes) at material and water ratio of 1:1 (wv), followed by filtration and storage. The filtrate was then observed for changes in color for 7 days. Brewing condition with best color stability at 85oC for 20 minutes were then treated with the addition of sugar or sodium benzoate and then tested for pH and color for 9 days storage in cool and room temperature. The research results showed that all samples (original, sugar added, and Na-benzoate added) had pH color change during storage, but original and Na-benzoate added had the best stability. Ready-to-drink wedang uwuh stored in cold temperature had better red color stability than room storage.
ANALISIS PERANCANGAN METODE VLSM DAN FLSM PADA MANAJEMEN IP ADDRESS LAN Rahman, Nur; Santoso, Banu; Pambudi, Agung; K Rasyid, Rum Mohamad Andri; Mulyatun, Sri; Tegris, Efrat; Widya Sari, Marti
(JITEK)Jurnal Ilmiah Teknosains Vol 10, No 1/Mei (2024): Jitek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v10i1/Mei.18988

Abstract

Computer networks are very important for people in the current era of modern globalization to access their daily needs. A good computer network is certainly needed to speed up community activities. Sub-netting is one of the things that can be done to optimize IP management on a computer network. This research on the application of the subnetting method on a computer network can be a reference in determining a better subnetting method for building a network. This research aims to analyze the influence of the two subnetting methods on a computer network, compare the network speeds obtained, and the application of the two subnetting methods on a computer network based on QoS parameters. The research results show that the analysis of both subnetting methods displays a very good QoS Index with the following details: FLSM: average throughput 50.792kbps, packet loss 0%, average delay 5.25ms, average jitter 5.37ms. VLSM: average throughput 77.843kbps, packet loss 0%, average delay 3.52ms, average jitter 3.58ms. In the FLSM method, all applied subnets have 101 remaining unused IPs and in VLSM, all applied subnets have 19 unused IPs remaining. This proves that networks designed using the VLSM subnetting method have more optimal network quality and more effective IP management.
ANALISIS KEBUTUHAN PRIMARY AIR PADA KILN BURNER UNTUK MEMPRODUKSI KLINKER Panjaitan, Jabosar Ronggur Hamonangan; Tursida, Faiza; Rahmadini, Gustia; Putra, Rahman Etika
(JITEK)Jurnal Ilmiah Teknosains Vol 10, No 1/Mei (2024): Jitek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v10i1/Mei.18265

Abstract

Clinker is the main ingredient in cement production which was produced by calcination process in a kiln with a burner. In this research, air requirements for the combustion process in burner to produce clinker were investigated. Based on the results, it was found that the air requirement for fuel combustion process was 127,403.849 (Nm3/hour). The combustion air requirement if 8% primary air used was 10,192.3 (Nm3/hour) and for 10% primary air used was 12,740.38 (Nm3/hour). The operational primary air flow (10.6%) was close to the theoretical primary air flow (10%), which operational primary air flow was 13,504.8 (Nm3/hour) and theoretical primary air flow (10%) was 12,740.38 (Nm3/hour).
DAMPAK PANDEMI COVID-19 TERHADAP KARAKTERISTIK FUNGSI HAMBATAN PERJALANAN MENUJU KAWASAN PENDIDIKAN Guntur Ristiyanto, Hartono; Supranoto, Bambang
(JITEK)Jurnal Ilmiah Teknosains Vol 10, No 1/Mei (2024): Jitek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v10i1/Mei.18917

Abstract

Analisis fungsi hambatan dibutuhkan untuk mengestimasi model distribusi perjalanan. Penentuan fungsi yang universal dibutuhkan untuk meningkatkan efisiensi pemodelan sehingga memungkinkan kita mengurangi ambiguitas matriks asal-tujuan. Bentuk fungsi yang mencerminkan kondisi eksisting (misal : adanya pengaruh pandemi) perlu dirumuskan dengan benar sehingga bisa digunakan untuk mengkalibrasi matriks asal-tujuan perjalanan dengan akurat sebagai dasar prediksi volume perjalanan. Berdasarkan hal tersebut, maka rumusan masalah penelitian ini adalah : bagaimana karakteristik fungsi hambatan perjalanan menuju kawasan pendidikan akibat adanya pandemi Covid-19 ? Tujuan utama penelitian untuk menemukan koefisien fungsi hambatan perjalanan yang sesuai akibat dari dampak pandemi. Analisis regresi fungsi hambatan dilakukan dengan bahasa pemrogaman Microsoft Excel dan SPSS for Windows. Variabel terikat adalah jumlah perjalanan. Sedangkan variabel bebas adalah jarak tempuh dari asal ke tujuan sekolah. Fungsi hambatan menggunakan bentuk fungsi : pangkat, eksponensial, dan kombinasi (Tanner). Hasil analisis menunjukkan bahwa pandemi mengakibatkan terjadinya perubahan pola sebaran panjang perjalanan. Nilai koefisien fungsi hambatan berubah secara signifikan akibat pengaruh pandemi. Tetapi, bentuk kurva sebaran panjang perjalanan cenderung mempunyai bentuk yang sama sebelum pandemi maupun saat pandemi. Sedangkan bentuk fungsi terbaik yang bisa menjelaskan pola sebaran perjalanan sebelum pandemi dan saat pandemi adalah jenis fungsi gabungan atau fungsi Tanner.
ANALISA SPASIAL SEBARAN EROSI DI DAS AIR BETUNG DENGAN METODE USLE MENGGUNAKAN GIS (Geografis Information System) Azizah, Barrorotul; Aisah, Elpita; Ardiansyah, Didi
(JITEK)Jurnal Ilmiah Teknosains Vol 10, No 1/Mei (2024): Jitek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v10i1/Mei.19404

Abstract

Along with rapid population growth, human needs for food also continue to increase. However, on the other hand, land as the main factor in agricultural production continues to decline both in quality and quantity. Decreased soil quality can occur due to erosion. Erosion is the process of loose soil grains from their parent in a place and the material is transported by water flow or wind. The process of erosion is determined by hydrological factors including rain intensity, topography, soil character, land cover vegetation, and land use. The Air Betung River Basin Sub-Regional Area, with high rainfall, has the potential for erosion which results in continuous scouring which can cause landslides and changes in land use. Based on this, an analysis of the distribution of erosion in the Air Betung River Sub-Watershed was carried out using the USLE method, then mapping was carried out using the Geographic Information System (GIS) system with Arch GIS. The aim of this research is to determine the distribution of erosion in the Air Betung Watershed, Pagar Alam City, then the results of this research are mapped using Arch GIS. The results of this mapping include land use maps, rainfall index maps, slope slope maps, Soil type index, soil erosivity index map. The map shows that the types of soil found in the Air Betung watershed consist of 3 types, namely, A leosol latosol cokku, A podmerkun podcokun, Yellowish Red Podsolk. The highest level of erosivity in the Air Betung watershed is 1207.5 tons/ha/year, and the lowest level is 0.155 tons/ha/year. The slope level ranges from 8 to 40%.
PERANCANGAN STRUKTUR TAHAN GEMPA (SEISMIK) GEDUNG ESDM Hariyanto, Hariyanto; Azizah, Nur Dita
(JITEK)Jurnal Ilmiah Teknosains Vol 10, No 1/Mei (2024): Jitek
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jitek.v10i1/Mei.19018

Abstract

Buildings are facilities that need to be fulfilled in an educational institution. The Ronggolawe Cepu Education Foundation has plans to build a workshop building located in Karangboyo Village, Cepu District. The construction of this building requires a good planning process so that the building being built can stand well. The structure is a building element that must be planned well because it functions to support the load of the building. In general, building structures are made of concrete and steel. This paper will discuss the structural planning of the Workshop building using concrete and steel materials.

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