Article Per Year (5 Year)
p-Index From 2021 - 2026
0.444
P-Index
This Author published in this journals
All Journal OCTOPUS : Jurnal Ilmu Perikanan Acta Aquatica: Aquatic Sciences Journal BJIE: Babasal Journal of Industrial Engineering
Djiada, Herdiyanto
Unknown Affiliation
Earth & Planetary Sciences Industrial & Manufacturing Engineering Materials Science & Nanotechnology Other

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Studi Analisis Pemodelan Matematis Sistem Ekonomi Islam Sebagai Alternatif Pengganti Sistem Ekonomi Kapitalisme Lutfie, Mukhtar; cahyani, Renita; Djiada, Herdiyanto
Babasal Journal of Industrial Engineering Vol. 2 No. 1 (2025): Babasal Journal of Industrial Engineering (Edisi Juni)
Publisher : Babasal Journal of Industrial Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The purpose of this article study is as an application/implication of the science of System Modeling and Simulation and it is expected to be understood about how to create an Islamic economic system and how to model it mathematically, so that an optimal solution is obtained. The research method uses qualitative and quantitative analysis. From the results of making a mathematical model of the Islamic economic system, an equation is obtained, namely Y = X1 + X2 + X3 + X4. The Islamic economic system is applied using gold and silver currency, prohibiting usury, based on the real economy, and ownership laws covering individuals, the public, and the state. From the modeling of the Islamic economic system, it can be concluded that the cause of the global financial crisis is the implementation of the capitalist system, the non-real economy does not have an impact on the real economy which fosters development in the trade of goods and services, the Islamic system is an alternative solution that turns out to inherit an appropriate, fair, just, humane economic system, to create welfare and welfare of life, not only in the world, but also in the hereafter. The mathematical model of the Islamic economic system obtained Y = X1 + X2 + X3 + X4 = (A + B) + (C + D) + (E + F) + (G + H + I).
PENGGUNAAN WARNA WADAH YANG BERBEDA UNTUK MENINGKATKAN KUALITAS WARNA IKAN MAS KOI (Cyprinus carpio) Rahman, Samsu Adi; Djiada, Herdiyanto; Sangkia, Frederik Dony
OCTOPUS: JURNAL ILMU PERIKANAN Vol. 9 No. 2 (2020): OCTOPUS
Publisher : Universitas Muhammadiyah Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26618/octopus.v9i2.7069

Abstract

Penelitian ini bertujuan menganalisis pengaruh perbedaan warna wadah pemeliharaan terhadap kualitas warna ikan mas koi (Cyprinus carpio). Penelitian ini dilakukan di Laboratorium Terpadu Fakultas Perikanan Universitas Muhammadiyah Luwuk. Ikan mas koi berukuran 3-5 cm dipelaihara selama 28 hari. Penelitian dilakukan dengan empat perlakukan dengan tiga ulangan yaitu: perlakuan kontrol (wadah putih); perlakuan wadah merah; perlakuan wadah kuning; perlakuan wadah hitam. Pakan yang diberikan yaitu pelet dengan frekuensi pemberian pakan dua kali setiap hari secara satiasi, yaitu pagi hari (pukul 09.00), dan sore (pukul 16.00). Pengukuran kualitas warna menggunakan perangkat lunak “Adobe photoshop 8” dengan melihat nilai rata-rata Red Green Blue (RGB). Hasil penelitian menunjukkan semua perlakuan memberikan peningkatan kualitas warna pada ikan, dengan peningkatan warna terbaik pada wadah pemeliharaan berwarna merah. Parameter kualitas air selama penelitian berada pada kisaran normal.
Initial study of population and microhabitat of the Banggai cardinalfish (Pterapogon kauderni) in Bilalang Bay, Banggai Regency Rahman, Samsu Adi; Djiada, Herdiyanto; Suhermanto, Achmad; Safir, Muhammad
Acta Aquatica: Aquatic Sciences Journal Acta Aquatica, Vol. 11: No. 3 (December, 2024)
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/aa.v11i3.16488

Abstract

The Banggai cardinalfish is an endemic fish in Banggai waters which is experiencing a population decline caused by excessive exploitation and degradation of its microhabitat. This research aims to determine the population of the Banggai cardinalfish and its microhabitat in Bilalang Bay. The research was conducted from January to February 2023 in Bilalang Bay, Banggai Regency, Central Sulawesi. Research data collection used the Underwater Visual Survey (UVS) method using a 20mx5m belt transect (2.5m left and right of the transect rope) at five observation stations. Observations made included recruits (<25 mm) Total Length, juveniles (25-60 mm), and adults (>60 mm). The results of observations of the population and density of the Banggai cardinalfish differ based on five observation stations. The highest population of the Banggai cardinalfish is found at location II with a total population of 4,412 fish, consisting of 2,510 adult size fish, 1,800 juvenile size fish, and 102 recruit size fish, with a density of adults 21.1 ind/m2, juvenile density 8 ind/m2, and recruit density 0.5 ind/m2. Meanwhile, the highest population based on size is adult size. The recruitment stage of the Banggai cardinalfish is only found in stations 1, 2, and 3, with microhabitats of sea urchins and anemones. The Banggai cardinal fish has the highest population at station 2.Keywords: Endemic; Banggai cardinalfish; Microhabitat; Population; Bilalang Bay
Co-Authors Cahyani, Renita Muhammad Safir Mukhtar Lutfie, Mukhtar Rahman, Samsu Adi Sangkia, Frederik Dony Suhermanto, Achmad