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Nurul Taufiqu Rochman
Pusat Penelitian Metalurgi, Lembaga Ilmu Pengetahuan Indonesia (LIPI)
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PELUANG DAN STRATEGI PENGEMBANGAN NANOTEKNOLOGI DI INDONESIA Rochman, Nurul Taufiqu; ., Jurmarman
Jurnal Riset Industri Vol 2, No 1 (2008): Jurnal Riset Industri
Publisher : Badan Penelitian dan Pengembangan Industri

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Abstract

Para pakar percaya bahwa nanoteknoligi akan membawa impian manusia menjadi kenyataan.di prediksi bahwa revolusi nanotegnologi akan berdampak sebanding dengan emoat revolusi industriyang telah di alami selama dua abat namun hanya di tempuh dalam kurun waktu beberapa tahun.Indonesia, negara dengan kekayaan alamanya yang cukup tersedia dan memiliki populasi ke-empat terbesar di dunia, harus kita berperan dalam pengembangan nanotegnologi. oleh kaerna itu, dalam kajian ini, pertama akan di bahas paradigma nanoteknologisecara singkat, kemudian akan di dalami peluang beserta damapak sosial nanoteknologi yang melatarblakangi mengapa banyak negara di dunia inimem prioritaskan dan mengalokasikan dana sebesar-besarnya untuk menguatkan daya saing bangsanya. Selanjutnya akan di sajikanstrategi pengembangan nanoteknologi yang di lakukan berbagai organisasi dan institusi juga akan di uraikan.
Perolehan Kembali Seng Dari Limbah Industri Galvanis Sebagai Seng Asetat Agustina, Siti; Indrasti, Nastiti Siswi; Suprihatin, Suprihatin; Rochman, Nurul Taufiqu
Jurnal Kimia dan Kemasan Vol. 36 No. 1 April 2014
Publisher : Balai Besar Kimia dan Kemasan

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Abstract

Seng dross merupakan hasil samping dari industri pelapisan logam (galvanis) dengan proses hot-dip dan mempunyai kandungan seng yang cukup tinggi. Hasil samping ini dapat digunakan sebagai bahan baku seng asetat. Seng asetat digunakan sebagai bahan tambahan makanan, suplemen, obat-obatan, precursor, dan pelega tenggorokan. Penelitian ini bertujuan untuk memperoleh kembali seng dari seng dross untuk menghasilkan seng asetat. Seng asetat tersebut akan digunakan sebagai precursor. Proses ekstraksi seng dross dilakukan dengan asam asetat glasial pada kondisi proses, yaitu waktu ekstraksi 1 jam, 2 jam, dan 3 jam, suhu ekstraksi 130 oC, 150 oC, dan 170 oC, serta konsentrasi asam asetat glasial 20%, 40%, dan 60%. Hasil ekstraksi berupa seng asetat dianalisis untuk mengetahui kadar seng dan karakteristik kristal. Hasil penelitian menunjukkan bahwa kondisi proses ekstraksi yang terbaik diperoleh pada suhu 130 oC, konsentrasi asam asetat glasial sebesar 60%, dan waktu proses ekstraksi selama 1 jam. Seng asetat yang diperoleh mengandung 75,39% seng dan kristal seng asetat mempunyai intensitas 5800 counts. 
Ekstraksi Dan Karakterisasi Serbuk Nano Pigmen Dari Daun Tanaman Jati (Tectona Grandis Linn. F) Kembaren, Riahna br; Putriliniar, Sesotya; Maulana, Nurwenda Novan; Yulianto, Kiki; Ikono, Radyum; Rochman, Nurul Taufiqu; Mardliyati, Etik
Jurnal Kimia dan Kemasan Vol. 36 No. 1 April 2014
Publisher : Balai Besar Kimia dan Kemasan

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Abstract

Tanaman Jati (Tectona grandis linn. F) umumnya hanya dimanfaatkan bagian kayunya untuk industri meubel, namun bagian lain seperti daun kurang dimanfaatkan. Daun jati terutama bagian pucuk daun muda dapat menghasilkan pigmen. Produksi serbuk nano pigmen dari daun jati dan karakterisasi serbuk nano pigmen tersebut belum dilakukan. Tujuan penelitian ini adalah menghasilkan nano pigmen dari pucuk daun jati muda dalam bentuk serbuk dengan menggunakan persentase filler yang berbeda dan melakukan karakterisasi serbuk nano pigmen jati tersebut. Pucuk daun jati muda diberi perlakuan mekanik dengan penggerusan kemudian disaring, larutan yang diperoleh diukur partikelnya dengan Particle Size Analyzer (PSA), dan dikeringkan dengan penambahan filler maltodekstrin 5% dan 10%. Serbuk yang diperoleh dihitung rendemen, ukuran partikel, dan kelarutan dalam air. Warna merah yang dihasilkan dari filtrat pucuk daun jati muda berasal dari zat warna antosianin yang terkandung dalam daun jati muda. Ekstrak dari pucuk daun jati muda memiliki ukuran dengan kisaran 87,8- 318,1 nm dengan ukuran rata-rata 109,2 nm. Hal ini menunjukkan bahwa ekstrak tersebut merupakan produk nano di alam. Penambahan filler dengan konsentrasi berbeda berpengaruh terhadap warna, rendemen, ukuran partikel serbuk, dan kelarutan pigmen serbuk dalam air. 
Economic Development of Mangosteen Agro-Industry Based on Sustainability Oryzanti, Parwa; Rustiadi, Ernan; Eriyatno, Eriyatno; Rochman, Nurul Taufiqu
JEJAK: Jurnal Ekonomi dan Kebijakan Vol 12, No 1 (2019): March 2019
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jejak.v12i1.17677

Abstract

The concept of developing agro-industry based agropolitan area for Mangosteen Peel Extract is  a solution to create the high added value and to increase people’s income in the area. Agro-industry development in agropolitan areas by optimizing the local strategic commodities is a breakthrough to support  the regional economy growth to be sustainable, so it is common in accordance with the potential regional leading commodities. The aim of this research is to analyze the sustainability of the area and to assess the feasibility of mangosteen agro-industry investment. The results of analysis show that the level of sustainability of technological and infrastructure, economic, social, and environmental and technological aspects are categorized as less sustainable with the sustainability index ranging from 34.12% to 49.96%. While the policy aspects in the development of Karacak agropolitan area are categorized as unsustainable with the sustainability index of 22.31%. The results of the feasibility analysis show that the capsulated agro-industrial product of mangosteen peel extract have greater opportunity to attract the investors because it is feasible with NPV value of Rp 17,690,067,855 and the added value of Rp 90,833/ kg of raw materials.
Effect of Mechanical Milling on the Total Phenolic Content and Antioxidant Activity of Garcinia mangostana Pericarp Nugroho, Dwi Wahyu; Daratika, Dyah Ayu; Kamila, Muthia; Togatorop, Lusiana; Rifada, Mohammad Aulia; Widayatno, Wahyu Bambang; Maulana, Syahrizal; Setyawati, Damai Ria; Mardliyati, Etik; Rochman, Nurul Taufiqu
Makara Journal of Science Vol. 24, No. 2
Publisher : UI Scholars Hub

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Abstract

This study aimed to identify the effect of mechanical milling on the total phenolic content and antioxidant activity of mangosteen pericarp. Mangosteen pericarp was milled under different milling times (30, 90, 150, and 210 min). The particle morphology before and after milling was observed by scanning electron microscopy (SEM), and the average particle size was obtained from SEM images and analyzed statistically. The antioxidant activity was measured through the 2,2-diphenyl-1-picrylhydrazyl method. The total phenolic content for the non-milling sample was 14.52 × 104 µg GAE/g sample, and the highest total phenol content was 17.44 × 104 µg GAE/g sample for the sample milled for 210 min. The IC50 value decreased for samples with milling 150 and 210 min, which showed strong antioxidant activity, whereas the value of gallic acid equivalent increased. SEM observations showed the presence of agglomeration in the morphology of mangosteen pericarp samples. The average particle size of the mangosteen pericarp decreased as the milling time increased (up to 4499 nm for samples milled for 210 min). Therefore, mechanical milling had a significant effect on the phenolic content and antioxidant activity, which indicated an increase in the bioavailability of mangosteen pericarp.
Mechanical Alloying-assisted Coating of Fe–Al Powders on Steel Substrate Noviyanto, Alfian; Harjanto, Sri; Widayatno, Wahyu Bambang; Wismogroho, Agus Sukarto; Amal, Muhamad Ikhlasul; Rochman, Nurul Taufiqu
Makara Journal of Technology Vol. 24, No. 3
Publisher : UI Scholars Hub

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Abstract

The coating layer of Fe–Al powders on the steel substrate was prepared by mechanical alloying at room temperature. Fe, Al, and the steel substrates were milled with high-energy ball milling for 32 h with a ball-to-powder ratio of 8 in an argon atmosphere to prevent oxidation during milling. Although mechanical alloying was performed for 32 h, no new phases were observed after mechanical alloying, as analyzed by X-ray diffraction. However, the crystallite size of the milled powders for 32 h decreased by factor two compared with the initial powders. Scanning electron micrographs showed that the coating layers formed >8 h after mechanical alloying. The intermetallic Fe3Al formed after the substrate was annealed at 500 ℃.
Optimasi Serat Selulosa Asetat/Gelatin/Ekstrak Bajakah (Spatholobus littoralis Hassk) menggunakan Pemintalan Elektrik (Electrospinning) Kusumah, Fuji Hernawati; Hartati, Sri; Aramel, Aramel; Noviyanto, Alvian; Zulfi, Akmal; Rochman, Nurul Taufiqu; Khairurrijal, Khairurrijal
Phi: Jurnal Pendidikan Fisika dan Terapan Vol 8, No 2 (2022)
Publisher : Universitas Islam Negeri Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/p-jpft.v8i2.15760

Abstract

Pemintalan elektrik (electrospinning) merupakan metode produksi serat yang efektif dan efisien, yang dapat menggunakan berbagai jenis material dan dimanfaatkan untuk beragam aplikasi, salah satunya sebagai media penghantar. Bajakah (Spatholobus littoralis Hassk) merupakan tanaman asli Indonesia yang tinggi akan zat antioksidan dan anti inflamasi. Pada penelitian ini, ekstrak etanolik bajakah diinkorporasikan ke dalam serat selulosa asetat (SA)/gelatin dengan memvariasikan perbandingan volume larutan polimer (SA/gelatin) terhadap larutan ekstrak bajakah (8:1, 6:1, 4:1, dan 2:1). Berdasarkan hasil electrospinning diperoleh bahwa hanya larutan prekursor SA/gelatin 2:1 yang tidak dapat menghasilkan serat. Hasil analisis data karakterisasi SEM menunjukkan bahwa larutan prekursor SA/gelatin dan SA/gelatin/bajakah 8:1, 6:1, 4:1 berturut-turut menghasilkan serat dengan ukuran rata-rata sebesar 1548, 1509, 1377, dan 1079 nm. Uji kadar ekstrak bajakah menggunakan UV-Vis menunjukkan bahwa ekstrak bajakah berhasil diinkorporasikan dalam serat SA/gelatin.
Distinctive Competencies and Process of Innovation During Organizationals Merger : The Moderating Effect of Knowledge Vacuum Ririh, Kirana Rukmayuninda; Anggraeni, Elisa; Machfud, Machfud; Rochman, Nurul Taufiqu
STI Policy and Management Journal Vol 8, No 1 (2023): STI Policy and Management
Publisher : National Research and Innovation Agency, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/STIPM.2023.356

Abstract

Merger organization may encounter contra and supportive conditions. Organizational changes due to merger often occur both process and knowledge intertia. Especially to a research and development agency which its core activity is innovation. Merger among R&D organizations is aimed to achieve legit images but also may delay innovation process. This study measure the effect of knowledge vacuum as a moderating variable between distinctive competencies and process of innovation. 36 targeted researchers and engineers from various former public research & development agencies were involves in a questionnaire survey. Data was analyzed using PLS-SEM. Results show that distinctive competencies significantly affect process of innovation, meanwhile knowledge vacuum is not a significant moderating variable between distinctive competencies and process of innovation. The most important aspects of distinctive competencies are to define detailed process of innovation from start to end and to be able to commercialize innovation output. These aspects will boost changing organization to achieve new goals and maintain innovation process. In this case of insignificant knowledge vacuum, the possibility of open innovation is adequate.
Studi kelayakan ekonomi budidaya udang Litopenaeus vannamei: investasi nanobubble dalam meningkatkan produktivitas hasil panen Mauladani, Syifa; Rahmawati, Asri Ifani; Absirin, Muhammad Fahrurrozi; Saputra, Rizki Nugraha; Pratama, Aprian Fajar; Hidayatullah, Arief; Dwiarto, Agus; Syarif, Ahmad; Junaedi, Hardi; Cahyadi, Dedi; Saputra, Henry Kasman Hadi; Prabowo, Wendy Tri; Kartamiharja, Ujang Komarudin Asdani; Noviyanto, Alfian; Rochman, Nurul Taufiqu
Jurnal Akuakultur Indonesia Vol. 19 No. 1 (2020): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (172.468 KB) | DOI: 10.19027/jai.19.1.30-38

Abstract

This study aimed to evaluate the economic feasibility of Litopenaeus vannamei shrimp reared at 400 shrimp/m2 in 56 days of culture. The experimental design was set in an 800 m2 HDPE pond installed with nanobubble and non-nanobubble. Shrimp survival and total harvest in nanobubble treatment was increased to 92% and 2,255 kg, respectively. Economic parameters calculated in this study were Net Present Value (NPV), Internal Rate of Return (IRR), Payback Period (PP), Break Even Point (BEP), Benefit Cost Ratio (B/C Ratio), and Sensitivity Analysis (SA). The total investment required to run this farming practice is IDR 182,887,700. Total revenue per cycle is estimated at IDR 157,850,000 with the selling price of IDR 70,000/kg of shrimp. The estimated PP is 4 cycles, with an NPV of IDR 172,329,247 projected in 10 cycles. IRR is estimated at 18% and BEP is reached after 7,058 kg production of shrimp. B/C Ratio is estimated to be 1.26 and SA showed that productivity is the most affecting parameters in the present analysis. Based on the economic study, vannamei shrimp farming associated with nanobubble system is feasible to be realized.
Orchestrating Digital Economy to Foster Economic Resilience of Smart Cities: The Soft System Approach Subkhan, Farid; Maarif, Mohammad Syamsul; Rochman, Nurul Taufiqu; Nugraha, Yudhistira
ETIKONOMI Vol 24, No 1 (2025)
Publisher : Faculty of Economic and Business

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/etk.v24i1.39224

Abstract

Research originality: This study provides new practical knowledge on the digital economy model and strategy to drive the resilient economy of smart cities.Research objective: This study aims to develop a digital economy management model for smart cities, a resilient economy framework for smart cities, and digital economy strategies for smart cities.  Research methods: This study employed a soft system methodology (SSM)-action approach by involving 30 digital economy and smart city experts from Jakarta, Bandung, Semarang, Surabaya, Banyuwangi, and Makassar.Empirical result: This study has successfully developed the digital economy model for smart cities by which digital technology, digital services, and digital finance are the keys. The resilient economy of smart cities is primarily characterized by economies of scale, economic structure, and economic stability. Moreover, the strategies should mainly focus on developing infrastructure and application, digital governance and policy, and digital society.Implication: The policy maker must consider critical policy interventions of the digital economy model and economic resilience goals, including budget priorities to the key digital economy strategies.JEL Classification: M21, O14, O18, P25, R11How to Cite:Subkhan, F., Maarif, M. S., Rochman, N. T., & Nugraha, Y. (2025). Orchestrating Digital Economy to Foster Economic Resilience of Smart Cities: The Soft System Approach. Etikonomi, 24(1), 315 – 334. https://doi.org/10.15408/etk.v24i1.39224.
Co-Authors Absirin, Muhammad Fahrurrozi Agung Hari Sasongko, Agung Hari Agus Sukarto Agus Sukarto Wismogroho, Agus Sukarto Ahmad Syarif Amal, Muhamad Ikhlasul Ansari, Abu Saad Aramel, Aramel Azwar Manaf Daratika, Dyah Ayu Dedi Cahyadi Dwi Wahyu Nugroho Dwiarto, Agus Elisa Anggraeni, Elisa Eriyatno . Ernan Rustiadi Etik Mardliyati, Etik Fitriani, Mita Fuji Hernawati Kusumah Hardi Junaedi HIDAYATULLAH, ARIEF Jurmarman ., Jurmarman Kamila, Muthia Kartamiharja, Ujang Komarudin Asdani Khairurrijal khairurrijal Kiki Yulianto Kirana Rukmayuninda Ririh M. Syamsul Maarif Machfud Machfud Mauladani, Syifa Maulana, Syahrizal Nastiti Siswi Indrasti Noviyanto, Alfian Noviyanto, Alvian Nugroho, Fairuz Gianirfan Nurwenda Novan Maulana, Nurwenda Novan Oryzanti, Parwa Prabowo, Wendy Tri Pratama, Aprian Fajar Radyum Ikono Rahmawati, Asri Ifani Riahna br Kembaren Rifada, Mohammad Aulia Rizal Syarief Saputra, Henry Kasmanhadi Saputra, Rizki Nugraha Sesotya Putriliniar, Sesotya SETYAWATI, DAMAI RIA Siti Agustina, Siti Sri Harjanto Sri Hartati Subkhan, Farid Suprihatin Suprihatin Tito Prastyo Rahman, Tito Prastyo Togatorop, Lusiana Wahyu Bambang Widayatno, Wahyu Bambang Yudhistira Nugraha Zulfi, Akmal