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All Journal Jurnal Manajemen dan Agribisnis ESENSI: JURNAL BISNIS DAN MANAJEMEN Transmisi: Jurnal Ilmiah Teknik Elektro Jurnal Manajemen Teknologi Jurnal Pendidikan Jasmani DE JURE Media Farmasi : Jurnal Ilmu Farmasi (Journal Of Pharmaceutical Science) Al-Jami'ah: Journal of Islamic Studies Journal of Degraded and Mining Lands Management Jurnal Riset Kimia Majalah Obat Tradisional TRANSISTOR Elektro dan Informatika Jurnal Zarah JURNAL MAHKAMAH Jurnal Penelitian Pertanian Terapan MODELING: Jurnal Program Studi PGMI JURNAL MANAJEMEN DAN PELAYANAN FARMASI (Journal of Management and Pharmacy Practice) SAMARAH: Jurnal Hukum Keluarga dan Hukum Islam Jurnal Organisasi Dan Manajemen PROSIDING SEMINAR NASIONAL AGRIBISNIS Indonesian Journal of Socio Economics Jurnal Ilmu Ilmu Agribisnis: Journal of Agribusiness Science AEGIS : Journal of International Relations PARAMUROBI TEGAR: Journal of Teaching Physical Education in Elementary School JUPE : Jurnal Pendidikan Mandala Economics and Finance in Indonesia JURNAL PANGAN Auladuna : Jurnal Prodi Pendidikan Guru Madrasah Ibtidaiyah Indonesian Journal of Community Services International Journal of Education, Science, Technology, and Engineering (IJESTE) Journal of Robotics and Control (JRC) JKP | JURNAL KEPEMIMPINAN PENDIDIKAN Visi Sosial Humaniora BISNIS & BIROKRASI: Jurnal Ilmu Administrasi dan Organisasi Narra J Education and Counseling Journal Sustainability Science and Resources Medika Trada Makara Journal of Technology Review of Accounting and Taxation COREAI: Jurnal Kecerdasan Buatan, Komputasi dan Teknologi Informasi Jurnal AGRISEP: Kajian Masalah Sosial Ekonomi Pertanian dan Agribisnis Cendekia: Journal of Law, Social and Humanities Indonesian Proceedings and Annual Conference of Islamic Education (IPACIE) Adabuna: Jurnal Pendidikan dan Pemikiran Nidhomiyyah: Jurnal Manajemen Pendidikan Islam Jurnal Pengabdian Fakultas Pertanian Universitas Lampung Policy Brief Pertanian, Kelautan, dan Biosains Tropika Central Community Development Journal Jurnal Kimia Unand International Research Journal of Business Studies At-Tahdzib: Jurnal Studi Islam dan Muamalah Jurnal Insan Pengabdian Indonesia Jurnal Faidatuna Jurnal Pendidikan dan ekonomi (JUPEK) Legitima : Jurnal Hukum Keluarga Islam Jurnal At-Tamwil: Kajian Ekonomi Syariah Indonesian Journal of Aerospace
Bustanul Arifin
Universitas Sultan Ageng Tirtayasa
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The Evaluation of Cooperative’s Role in Soybean Supply Chain: A Case Study on Tofu and Tempeh Cooperatives in Indonesia Susilowati, Etty; Oktaviani, Rina; Arifin, Bustanul; Arkeman, Yandra
BISNIS & BIROKRASI: Jurnal Ilmu Administrasi dan Organisasi Vol. 21, No. 2
Publisher : UI Scholars Hub

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Abstract

This study aimed to analyze and evaluate the extent of relationship between the soybean demand in a region and the number of cooperatives in the area, as well as the extent of relationship between the number of cooperative members (tofu and tempeh producers) and the number of cooperatives in the area. This study uses a quantitative approach based on primary data, later processed using Pearson correlation method. The results of data processing show that there is no significant relationship between the number of cooperatives and the number of producers. Furthermore, there is also no significant relationship between the number of cooperatives and existing soybean demands. This indicates the low role of cooperatives in the national soybean supply chain at the present. Therefore, there are two policy options that can be made. First, a radical policy, i.e. to leave out PRIMKOPTI in soybean supply chain at all. Second, the still mainstream policy, i.e. to still involve PRIMKOPTI, thus in order to make long-term programs in soybean business administration run well, PRIMKOPTI should be institutionally empowered and strengthened to achieve its business resilience.
Factors Affecting Performance and Growth of Food Sector BUMD Jakarta Province Siahaan, Henry MP; Priyarsono, Dominicus Savio; Rifin, Amzul; Arifin, Bustanul
BISNIS & BIROKRASI: Jurnal Ilmu Administrasi dan Organisasi Vol. 28, No. 1
Publisher : UI Scholars Hub

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Abstract

Through a quantitative approach to data analysis using SEM-PLS, this research aims to identify factors that can improve the performance and growth of the food sector BUMD of DKI Jakarta Province. This research was motivated based on the fact that most BUMDs in Indonesia underperform with various causes. Total respondents were 98 employees from middle to top level management positions in three food BUMDs in DKI Jakarta. The main findings of this research are 12 indicators (inner model) which are divided into five variables in the measurement model (outer model): management, organization, human resources, finance and technology that have a significant relationship and positive effect on all variables. While of the five variables used in the structural model, only financial variable has a significant effect on the performance of BUMD businesses. While the variables of performance improvement of management, organization, human resources and technology do not significantly improve the performance of BUMD businesses. Going forward, companies and the DKI Jakarta Provincial Government can focus on evaluating and improving the growth capital structure and business volume. The company's increased profitability will provide a multiplier effect on increasing the performance and growth of BUMD businesses.
AKTIVITAS ANTIBAKTERI SENYAWA METABOLIT SEKUNDER DARI FRAKSI ETIL ASETAT DAUN LENGKENG (Dimocarpus longan Lour.) DAN UJI AKTIVITAS Arifin, Bustanul; Suryati; Tetra, Olly Norita; Maghfirah, Sucy
Jurnal Zarah Vol 8 No 2 (2020): Jurnal Zarah
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Maritim Raja Ali Haji

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31629/zarah.v8i2.2460

Abstract

Isolasi dan karakterisasi struktur senyawa metabolit sekunder dari fraksi etil asetat daun lengkeng (Dimocarpus longan Lour.) telah dilakukan dan dipelajari aktivitas antibakterinya. Isolasi dilakukan dengan teknik kromatografi kolom gravitasi menggunakan fasa diam silika gel dan fasa gerak n-heksana, etil asetat dan metanol dengan sistem elusi peningkatan kepolaran (SGP) dan isokratik. Pemurnian senyawa hasil isolasi dilakukan dengan cara triturasi. Senyawa murni hasil isolasi yang diperoleh berupa padatan putih dengan titik leleh 126-127°C dan menunjukkan uji positif triterpenoid dengan pereaksi Liebermann-Burchard. Karakterisasi struktur senyawa triterpenoid hasil isolasi menggunakan data spektrum UV menunjukkan bahwa triterpenoid hasil isolasi tidak memiliki ikatan rangkap berkonjugasi. Analisis data spektrum IR menunjukkan bahwa triterpenoid hasil isolasi memiliki pita serapan gugus OH (3326,46 cm-1 ), ikatan C–O (1270,80 cm-1 dan 1038,76 cm-1 ) dan geminal dimetil (1379,46 cm-1 ) yang merupakan ciri khas senyawa triterpenoid. Uji aktivitas antibakteri dilakukan dengan metode difusi, hasilnya menunjukkan senyawa triterpenoid memiliki daya hambat lemah dibanding dengan amoxicillin dalam menghambat pertumbuhan bakteri Staphylococcus aureus dan Escherichia coli.
ANALISIS PENDAPATAN DAN RISIKO USAHATANI CABAI MERAH DI KECAMATAN WAY SULAN KABUPATEN LAMPUNG SELATAN Anugrah, Dian Febriany; Arifin, Bustanul; Suryani, Ani
Jurnal Ilmu Ilmu Agribisnis: Journal of Agribusiness Science Vol 9, No 2 (2021)
Publisher : Lampung University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jiia.v9i2.5105

Abstract

This research aims to assess  the income of red chili farming, the amount of risk faced by red chili farmers, and the correlation between risk and income accepted by the red chili farmers.  The study was conducted in Way Sulan Sub-district of South Lampung Regency.  The total samples were 56 farmers drawn using a simple random sampling method.  The data were collected in March - April 2019 using questionnaires.  The first aim was analyzed using the revenue-cost ratio (R/C), which is the comparison between total revenue and total cost.  The second aim was analyzed by risk analysis using coefficient variation (CV) and the lower limit (L) on five planting seasons.  The third aim was analyzed by Product Moment Pearson correlation.  This research results showed that the red chili farming income was profitable because of R/C >1.  Risk calculation on five planting seasons results showed that the value of CV<0,50 and L>0, meaning that red chili farming was still profitable in any level of risk.  There was positive correlation between the amount of risk and income. It means that the higher level of expected income, the higher level of risk received by farmers. Key words:  income, red chili, risk
Village Fund Financial Fraud Prevention Model Using Analytical Hierarchy Process Method Taqi, Muhamad; Ismail, Tubagus; Meutia, Meutia; Sabaruddinsah, Sabaruddinsah; Arifin, Bustanul
Jurnal Organisasi dan Manajemen Vol. 17 No. 2 (2021)
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/jom.v17i2.1366.2021

Abstract

The objectives of this study are (1). Identify the factors that cause fraud in village fund management in Banten Province (2). Develop a village fund fraud prevention model using the Analytical Hierarchy Process method. Data collection methods were carried out by in-depth interviews and Focus Group Discussion (FGD) by inviting academics and experts. The analysis technique uses the Analytical Hierarchy Process (AHP) to model the prevention of village fund fraud in Banten Province. Findings. The results of this study indicate that the actor who is considered the most dominant in the occurrence of fraud is the Village Head, and the strategy that is considered the most dominant in preventing fraud is to narrow the opportunities. When viewed from the perspective of a strategy to minimize pressure, the most important aspect is the change in external auditors, from a strategy perspective of narrowing opportunities, the most important aspect is to streamline monitoring, then from the perspective of negative rationalization strategies and positive competency strategies, the most important aspects include ethics education moral and management change, and the last aspect of the closeness of the ruler is the most important aspect in the strategy perspective to reduce arrogance.
Effects Of 0.25 % Mo (Molybdenum) Which Is Contained In The Ductile Cast Iron On Mechanical Properties Of Austempered Ductile Iron (ADI). Nukman, Nukman; Arifin, Bustanul; Sugiarto, Bambang
Makara Journal of Technology Vol. 6, No. 1
Publisher : UI Scholars Hub

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Abstract

The aim of this research is to investigate the effects of 0.25 % Mo (Molybdenum) which is contained in the ductile cast iron on mechanical properties of Austempered Ductile Iron (ADI). The various temperatures and the holding times are used in the heat treatment processes. Using a given 0.25 % Mo in the ductile iron, ADI's alloyed developes a higher ultimate tensile stress value and decreases the elongation if we compare with the as cast (non alloy ductile iron). The higher impact energy value obtained at 9000 C austenization and 375o C austempering temperatures during 60 minutes holding times. The structure changes into ausferrit.
Effect of Contact Time on Interface Reaction between Aluminum Silicon (7% and 11%) Alloy and Steel Dies SKD 61 Suharno, Bambang; Nurhayati, Neni Octapiani; Arifin, Bustanul; Harjanto, Sri
Makara Journal of Technology Vol. 11, No. 2
Publisher : UI Scholars Hub

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Abstract

Effect of Contact Time on Interface Reaction between Aluminum Silicon (7% and 11%) Alloy and Steel Dies SKD 61. Die soldering (die sticking) is a defect of metal casting in which molten metal “welds” to the metallic die mold surface during casting process. Die soldering is the result of an interface reaction between the molten aluminum and the die material. Aluminum alloy with 7 and 11% silicon and SKD 61 die steel are the most common melt and die material used in aluminum die casting. This research is done to study the morphology and the characteristics of the formed AlxFeySiz intermetallic layer during interface reaction at dipping test. The samples of as-anneal SKD 61 tool steel was dipped into the molten of Al-7%Si held at temperature 680oC and into molten Al-11%Si held at temperature 710oC with the different contact time of 10 minutes; 30 minutes; and 50 minutes. The research results showed that the interface reaction can form a compact intermetallic layer with AlxFey phase and a broken intermetallic layer with AlxFeySiz phase on the surface of SKD 61 tool steel. The increasing of the contact time by the immersion of material SKD 61 tool steel in both of molten Al-7%Si and Al-11%Si will increase the thickness of the AlxFeySiz intermetallic layer until an optimum point and then decreasing. The micro hardness of the AlxFeySiz intermetallic layer depends on the content of the iron. Increasing of the iron content in intermetallic layer will increase the micro hardness of the AlxFeySiz. This condition happened because the increasing of Fe content will cause forming of intermetallic AlxFeySiz phase becomes quicker.
System Identification and Control Strategy on Electric Power Steering DC Motor Arifin, Bustanul; Nugroho, Agus Adhi; Budisusila, Eka Nuryanto; Khosyi'in, Muhammad
Journal of Robotics and Control (JRC) Vol 5, No 3 (2024)
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jrc.v5i3.21614

Abstract

Power steering technology help human to control the car. The hydraulic power steering system now tends to be replaced by the electric power steering system (EPS). As the main driver that require precise control. The contribution of this research is to obtain system identification of EPS motor and novelty control strategy to achieve stable control better. Motor control require an appropriate mathematical model and up-down-up down signals of Pseudo Random Binary Signal Sequence (PRBS) were used. The modelling method used was the Numerical Algorithm for Subspace State Space System Identification (N4SID). The quality of the modeling needs to be measured to see whether it was close to the original signal. The validation of the model obtained tested using Variance Accounted For (VAC), Akaike Information Criterion (AIC), and Final Prediction Error (FPE). The best mathematical model was developed on the basis of these three criteria, which is 3rd order model. The control strategy carried out by means of the Ziegler Nichols, Tyreus Luyben and Haugen tuning technique. With these three tuning methods, the control parameters obtained were used for Proprotional-Integral (PI) and Proportional-Integral-Derivative (PID) control. Based on the study, the Haugen control shows the best results of the two other controls, namely with a rise time value of 11,361 ms, overshoot of 6,898%, and steady state at 1.3 s. This show that PI control using the Haugen tuning method able to control the motor well. Robustness tests have also been carried out because the steering system is operated in unpredictable environmental conditions. The control greatly influenced the performance and stability of EPS control in the car's steering system.
KEBERLANJUTAN USAHA BUDIDAYA UDANG VANAME DI KAWASAN KONSERVASI MANGROVE LAMPUNG MANGROVE CENTER (LMC) KECAMATAN LABUHAN MARINGGAI LAMPUNG TIMUR Rifai, Muhamad; Arifin, Bustanul; Endryanto, Teguh
Indonesian Journal of Socio Economics Vol 2, No 1 (2023): IJSE : INDONESIAN JOURNAL OF SOCIO ECONOMICS
Publisher : Lampung University

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Abstract

The purposes of this research are to determine the income level of vanname shrimp farming, the value chain of vanname shrimp, and the sustainability of vanname shrimp farming in Marga Sari Village in Labuhan Maringgai Sub-District economically, socially, and environmentally by analyzing the financial feasibility of vanname shrimp farming.  The data was collected on March 2020 using a census method.  The data used are primary data from questionnaires and secondary data from literature studies.  The results show that the income of vanname shrimp farming in Marga Sari Village is Rp210.493.641,03 per hectare per year. The value chains of vanname shrimp activities are inbound logistics, operations, out bound logistics, marketing and sales, but there are no after-sales service activities.  There are two channels of agribusiness value chain of vanname shrimp which are formed in Marga Sari Village, namely channel I : farmer, collector trader, wholesale market trader; channel II : farmer, trader, exporter.  The vanname shrimp farming in Marga Sari Village is sustainable, with a sustainability index of 82.22% for economic aspect, 90.63% for social aspect, and 99.00% for environmental aspect.
Mansai in the Marriage Tradition of the Banggai Ethnic in Central Sulawesi, Indonesia: A Living Sunnah Perspective Puyu, Darsul S.; Umar, Subehan Khalik; Hanis, Hasdin; Arifin, Bustanul; Abili, Muhammad
Samarah: Jurnal Hukum Keluarga dan Hukum Islam Vol 7, No 3 (2023): Samarah: Jurnal Hukum Keluarga dan Hukum Islam
Publisher : Islamic Family Law Department, Sharia and Law Faculty, Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/sjhk.v7i3.16510

Abstract

The Mansai tradition is the custom of collecting material assistance before the wedding to lighten the burden on the prospective groom. This procession becomes a problem whether it is in harmony with the Prophet's orders. This study is qualitative research using the approach of living traditions and anthropology of Islamic law. Living sunnah is used to analyze the concept of hadith that lives in the Banggai community, while the anthropology of Islamic law analyzes the practice of mansai which is a tradition in marriage. Data was collected by gathering information through in-depth interviews and literature studies. The field findings were then analyzed using the perspective of living sunnah and integrated with the customs of the people of the Banggai Tribe, Central Sulawesi. The selected hadiths are those that have been validated for the quality of their sanad and matan. This study found that the mansai tradition means that the prospective groom invites his family and community to bear the funds or assets as wedding expenses which will be handed over to the woman (mangantokon sai). Mansai as a custom has become a habit in accordance with Islamic law and has become a living sunnah. The main message in the Mansai tradition is to help each other and ease the burden on Muslim brothers and sisters in the process of marriage (banikah) in the Banggai Tribe community. Anthropologically, mansai as a tradition that has been accepted by the Banggai people for a long time, functions as a unifying medium, maintains the practice of deliberation and overcomes social problems.
Co-Authors - Afrizal A. Prasetiyo, Nugraha A.A. Ketut Agung Cahyawan W Abd. Haris Abdul Muid Abdul Rachman Syam Tuasikal Abili, Muhammad Addin, Faathir Sukron Adia Nugraha Adlis Santoni Admin Alif Agus Adhi Nugroho Agustin, Esther Sri Astuti Soeryaningrum Ahmad Fuady Aisya, Nurul Aji Andar Subekti Akhmad Fauzi Ali Imron Alkaff, Firas F. Alkaff, Sylmina D. Amanda Putra Seta Ambya, Ambya Amin, Irnawati H. Amzul Rifin Aneftasari, Ica Rizki Ani Suryani Ani Suryani Anshar Saud Anugrah, Dian Febriany Ardiansyah, Akhmad Arief Daryanto Aristiyani, Ririn Ashari, Dias Astuti, Ayun Dwi Aulia, Muhammad Rifky Azwan, Ahmad Baba Barus Bahar, Muhammad A. Baihaqi, Moh. Hamdan Bambang Siswaji Bambang Sugiarto Bambang Suharno Budiyuwono, Slamet Cahyawati, Novia Chairunnisa, Nabila Putri Yusni Daniyah, Daniyah Deswati Deswati Dhestriani Mulyahati Adam, Thaesha Didik Supriyanto, Didik Dominicus Savio Priyarsono Dwicahya, Bambang Dyah Aryani Perwitasari Eka Kasymir Eka Nuryanto Budi Susila Elly Wahyudin Endryanto, Teguh Etty Susilowati Faizun, Adi Fatayati, Sun Fatimah Azzahra Fitriani Fitriani Frisky, Sintia Gemini Alam Giffary, Mohammad Afdhal Habsyi, Irsan Hakim, Faisol Hamzar Suyani Hanny Hafiar Hapsari, Jenny Putri Harianto Harianto Hariyanto, Andi Hasan, Nurhasan Hasdin Hanis Hasnirwan Hasnirwan Hendrawan Hendrawan Hermansyah Aziz Hermanto Siregar Hernanda, Tiara Aprilia Putri Hidayat, Cesar Agung Hidayat, Tauhid Imam Much Ibnu Subroto Iman Setiawan Imelda - Imron Fauzi Irsan Habsyi Irwan Irwan Istikomah Istikomah Jati, Budi Pramono Joni, Rahma Kada, Ryohei Kamiko, Awfa Joti Aghna Karim, Amrulloh Khalik, Subehan Kholidi, Ahmad Khaerul Kurniawan, Muh D. Lestari, Dyah Aring Hepiana Lidya Sari Mas Indah, Lidya Sari Mas Lukman Santoso M. Husein Sawit M. Iqbal Alfarisyi M. Rifqi Rokhman Madolangan, Jamaluddin Maghfirah, Sucy Mahardika, Desi Aditia Mai Efdi Massi, Muhammad N. Meutia, Meutia Muh. Deni Kurniawan Muhamad Hamdani, Muhamad Muhammad Akram Muhammad Haqa, Rizki Nur Muhammad Khosyi'in Muhammad Said Didu Munaf Ismail, Munaf Munawwaroh, Makiyatul Niamuzisilawati, Eva Nisa, Himmatun Novi Rosanti Novia, Asih Noviana, Tia Nugroho, Agus Adi Nunung Nuryartono Nurhayati, Neni Octapiani Nursaid Rizalullael, Muh. Nuryanto Budisusila, Eka Offermans, Astrid Olly Norita Tetra Padmawati, Retna S. Pamuncak, Ririn Perwitasari, Dyah A. Postma, Maarten J. Purba, Fredrick D. Puyu, Darsul S. Qosim, Achmad R Hanung Ismono R. Rokhman, Muhammad Rachman, Muhammad Ibrahim Ragil Qiansantang, Lalu Raisika, . Rasuane Noor Rauf, Saidah Reed, Michael Rifai, Muhamad Rina Oktaviani Rinaldo, Rio Rita Rosiana Sabaruddinsah Sabaruddinsah, Sabaruddinsah Salamah, Sovia Salasa, Danie Sanusi Ibrahim Sanusi, Mayamariska Sarifah, Latifah M. Sarwadan, Muhamad G. Sattu, Fidel Yoel Junovray Siahaan, Henry MP Siti Aisyah Sri Arttini Dwi Prasetyawati Sri Harjanto Sugiyono . Suhardin Suhardin, Suhardin Sukendar, Irwan Suparmin, . Suryati Susetiyo, Ari Suswono Suswono Syamsiar, Syamsiar Tanaka, Katsuya Taqi, Muhamad Toni Bakhtiar Tubagus Ismail Utami, Ikrimah N. Veni Hadju Virgiana, Sita Wahyu Agung Sakti, Lalu Wahyuni, Hanif Wan Abbas Zakaria Widyastutik Wisena, Bambang Aria Wulandari, Anis Erma Yaktiworo Indriani Yandra Arkeman Yudiana, Pina Yugiantoro, Darojat Yuliet Yuliet Yunita Salamah Zainal Abidin Zulkarnain Zulkarnain