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All Journal JUSTISI Buletin Peternakan Tropis (Bulletin of Tropical Animal Science) Jurnal Teknik Mesin Sinergi Gunung Djati Conference Series
Muhammad Ridwan Hidayat
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Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Other

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Analisis Motor Bakar Berbahan Bakar Premium Dengan Penambahan Aditif Bioetanol dari Limbah Tongkol Jagung Muhammad Ridwan Hidayat; Adi Taufik Samara; Mahyati Mahyati; La Ode Musa; Apollo Apollo
Jurnal Teknik Mesin Sinergi Vol 10, No 1 (2012): April 2012
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (332.703 KB) | DOI: 10.31963/sinergi.v10i1.1083

Abstract

Tujuan penelitian ini untuk mengetahui pengaruh penambahan aditif bioetanol kedalam premium terhadap unjuk kerja dan emisi gas buang mesin bensin merk Enduro XL TD 110. Penelitian ini dilakukan dengan membandingkan premium murni terhadap campuran premium ditambahkan bioetanol yang berasal dari limbah tongkol jagung dengan variasi penembahan sebesar 25 ml, 50 ml, 75 ml dan 100 ml yang dilakukan pada beban konstan dan variasi putaran mulai 1500 rpm sampai 3500 rpm dengan interval 500 rpm. Hasil penelitian menunjukkan bahwa terdapat pengaruh penambahan bioetanol kedalam premium terhadap unjuk kerja mesin bensin dimana diperoleh kenaikan daya rata-rata terbesar pada penambahan 100 ml = 0,194 kW dan penurunan emisi gas buang yang optimum diperoleh pada campuran premium dengan penambahan 100 ml dibanding variasi yang lain dengan kadar sebesar: CO = 0,84 %, CO2= 10,5 % pada putaran 3000 rpm dan HC = 42 ppm pada putaran 3500 rpm, sesuai standar baku mutu emisi gas buang yang ditetapkan pemerintah.
Total VFA value, NH3 and Invitro Digestibility of Cabbage and Mustard Vegetable Waste Distilled with Various Carbohydrate Sources: Nilai VFA Total, NH3 dan Kecernaan Invitro Limbah Sayur Kol dan Sawi yang Disilase dengan Berbagai Sumber Karbohidrat Adelina, Triani; Saleh, Eniza; Anwar Efendi Harahap; Hidayat, Muhammad Ridwan
Buletin Peternakan Tropis Vol. 5 No. 2 (2024)
Publisher : BPFP Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31186/bpt.5.2.150-157

Abstract

Market vegetable waste produced in Pekanbaru City can be produced up to 235.45 tons/day, this has the potential to utilize market waste in the form of cabbage and mustard greens which are used as feed. This research aims to produce NH3 production values, VFA and dry matter digestibility (DMD), organic matter digestibility (OMD) of vegetable waste silage with the addition of various carbohydrate sources. The research method was carried out experimentally using a Completely Randomized Design (CRD) pattern of 4 treatments and 5 replications. Treatments are P1 = vegetable waste silage + 30% rice bran; P2= vegetable waste silage + 30% corn flour; P3%= vegetable waste silage + 30% addition of piles; and P4 = vegetable waste silage + addition of 10% rice bran + 10% corn flour + 10% waste. The parameters observed were dry matter digestibility, organic matter digestibility, NH3 production and total VFA. The research results showed that the addition of various carbohydrate sources had no significant effect on silage NH3 (P>0.05), but had a very significant difference (P<0.01) on the DMD, OMD and total VFA values. The addition of various carbohydrate sources is able to increase the In Vitro digestibility value and is able to maintain NH3 production. The addition of a carbohydrate source from corn flour resulted in superior DMD, DMO and total VFA values compared to other treatments
STRATEGI KOMUNIKASI SYARIAH DALAM TRANSFORMASI DIGITAL UMKM: ANALISIS LITERATUR TENTANG INTEGRASI NILAI ISLAMI PADA PLATFORM E-COMMERCE Muhammad Ridwan Hidayat; Taufiqil Hakim
Gunung Djati Conference Series Vol. 56 (2025): Seminar Nasional Ekonomi dan Bisnis Islam
Publisher : UIN Sunan Gunung Djati Bandung

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

Abstract

Transformasi digital telah menghasilkan perubahan signifikan pada praktik bisnis UMKM, termasuk strategi komunikasi yang kini dimasukkan ke dalam platform digital seperti media sosial dan e-commerce. Bagi UMKM yang menganut prinsip-prinsip syariah, perubahan ini memberikan tantangan yang signifikan dalam mengintegrasikan prinsip-prinsip syariah ke dalam komunikasi bisnis. Tujuan dari penelitian ini adalah untuk menganalisis strategi komunikasi syariah dalam konteks digitalisasi UMKM, dengan penekanan pada pengintegrasian prinsip-prinsip syariah ke dalam penggunaan platform e-commerce. Metode yang digunakan adalah analisis literatur dengan menggunakan pendekatan deskriptif-kualitatif. Informasi diambil dari berbagai jurnal akademis, laporan institusi, dan artikel ilmiah yang terkait dengan topik ekonomi syariah dan komunikasi syariah. Analisis tematik dilakukan untuk mengidentifikasi prinsip-prinsip, praktik, dan tantangan penerapan prinsip-prinsip syariah dalam komunikasi bisnis digital (UMKM). Hasil penelitian menunjukkan bahwa meskipun ada upaya untuk menerapkan prinsip-prinsip seperti ṣidq (kejujuran), amanah, dan 'adl (keadilan), penerapan prinsip-prinsip syariah dalam komunikasi digital masih relatif belum dapat diandalkan dan bersifat informal. Poin utamanya adalah dominasi platform tradisional, tingkat literasi digital syariah, dan pemahaman para UMKM tentang akad transaksi syariah. Penelitian ini menyarankan bahwa strategi komunikasi syariah di era digital harus diimplementasikan melalui edukasi, dukungan kebijakan, dan pengembangan ekosistem e-commerce yang inklusif dan halal. Integrasi nilai Islami dalam komunikasi bisnis tidak hanya membuat perbedaan di pasar, tetapi juga berfungsi sebagai kontribusi yang nyata untuk pengembangan ekonomi syariah yang berkembang.
Legal Wisdom in Indonesian Legal System: Toward Progressive Law Enforcement Muhammad Ridwan Hidayat; Suteki, Suteki; Jean Claude Geofrey Mahoro
JUSTISI Vol. 10 No. 3 (2024): JUSTISI
Publisher : Fakultas Hukum Universitas Muhammadiyah Sorong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33506/js.v10i3.3198

Abstract

This study aims to analyze the state of society that began without a system, or what is called the condition of disorder, which is unstable (social melee) so that the state of law, when it comes to people's lives, must also follow the unstable pattern (legal melee). The method used is normative philosophical, which leads to the basis of discourse (Conceptual). This study also explains some of the gaps in previous similar studies by presenting some novelty of analysis, such as (1) an explanation of how legal wisdom is an important concept for progressive law enforcement, (2) the national legal system (conventional) with legalistic positivistic substance remains an open formulation towards legal progressiveness in Indonesia. The exposure of the construction of a legal system continuously undergoing development is an issue that must always get a balance for new legal discoveries so that the developing law always follows the development of society. The results of this study revealed that the existing legal products also naturally show how the law plays a role. Then, with the existence of legal products, one area that gets regulation against it must be more organized than areas that legal arrangements have not been regulated by law. It can be concluded that today's Indonesian legislation is a portrait that shows the problem of existing regulations. It has become natural to revive and develop with a more structured of legal enforcement.
Co-Authors Adi Taufik Samara Anwar Efendi Harahap Apollo Apollo Apollo Jean Claude Geofrey Mahoro La Ode Musa Mahyati Mahyati Mahyati Saleh, Eniza Suteki, Suteki Taufiqil Hakim