Article Per Year (5 Year)
p-Index From 2020 - 2025
2.884
P-Index
This Author published in this journals
All Journal Jurnal Teknik Kimia Jurnal technoscientia AKSIOLOGIYA : Jurnal Pengabdian Kepada Masyarakat J-MKLI (Jurnal Manajemen dan Kearifan Lokal Indonesia) Jurnal Penamas Adi Buana Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Jurnal Komunitas: Jurnal Pengabidian Kepada Masyarakat Buletin Profesi Insinyur G-Tech : Jurnal Teknologi Terapan Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) JURNAL TEKNOLOGI TECHNOSCIENTIA Journal of Sustainable Technology and Applied Science Journal of Multidisciplinary Applied Natural Science Journal of Mechanical Engineering, Science, and Innovation Jurnal Ilmiah Berkala: Sains dan Terapan Kimia Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri Jurnal ATMOSPHERE
Nanik Astuti Rahman
Institut Teknologi Nasional Malang
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

Published : 27 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 27 Documents
Search

 1   2   3 
Analysis Capabilities of Green Open Space and Quality Ambient Air Using Exhaust Gas Parameters on Motor Vehicles (CO2) (Case Study in Kendari City) Darmayani, Satya; Supiati, Supiati; Rosyanti, Lilin; Rahman, Nanik Astuti; Febrina, Wetri
Reka Buana : Jurnal Ilmiah Teknik Sipil dan Teknik Kimia Vol 9, No 2 (2024): EDISI SEPTEMBER 2024
Publisher : Universitas Tribhuwana Tunggadewi Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33366/rekabuana.v9i2.5762

Abstract

The rapid increase in population and land transportation in Kendari City has impacted the availability of green open spaces (GOS), which are crucial for maintaining air quality by absorbing carbon dioxide (CO2) emissions from motor vehicles. This study aims to assess the capacity of GOS in Kendari to absorb CO2 based on different vegetation types. The research employed a descriptive analysis method, with data collected through field observations and secondary sources, including information on GOS area, motor vehicle fuel consumption, and emission factors. The study found that Kendari City requires 17.73 hectares of GOS to absorb the CO2 emissions produced by motor vehicles, while the existing GOS covers 2,562.67 hectares. These indicate that the current GOS is sufficient to perform its environmental functions. Forests in the area absorb 10.292 tons of CO2, parks absorb 1.767 tons, green lanes absorb 27.682 tons, and other GOS areas, including the Kendari Botanical Gardens and sports fields, contribute more diminutive amounts. The results suggest that while Kendari's existing GOS can still manage CO2 emissions effectively, further expansion and optimization of green areas could enhance the City's environmental sustainability. This research provides valuable insights for urban planners and policymakers in Kendari, especially in planning for future GOS development to ensure continued air quality management.
THE INFLUENCE OF ADDING NUTRIENT ELEMENTS IN POC COMPOSITION ON ROOT AND LEAF GROWTH IN PAKCOY (Brassica rapa L.) PLANTS USING HYDROPONIC CULTIVATION SYSTEM Ady Dwi Tegar, Ahmad Nurul Hakim An Nasif; Sugiarto, Ady Dwi Tegar; Rahman, Nanik Astuti
jurnal ATMOSPHERE Vol. 4 No. 1 (2023): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v4i1.6759

Abstract

Planting with a hydroponic system is a technique for cultivating plants without using soil media, but instead using water as a medium for cultivating plants. So that planting with a hydroponic system can use narrow land. So a study was conducted with the aim of applying Liquid Organic Fertilizer (POC) with the Indonesian National Standard (SNI) in a hydroponic planting system by adding POC constituent nutrients to the growth of roots and leaves of mustard greens, by adding a dose POC concentration of 0%, 9%, 12%, and 15% by analyzing samples of 0, 7, 14, 21, 28, 35 days to obtain better growth of pakcoy vegetables. The best growth of pakcoy plant roots was obtained from a concentration of 15%, obtained a length of 18.75 cm. The best growth in leaf width of the oajcoy plant was obtained from a concentration of 0% or without POC, the leaf width was 5.75 cm.
PUPUK MULTINUTRIENT BERBASIS GEL DARI LIMBAH MONOKULTUR PROSES FERMENTASI Oktavian, Dio Ajeng; Iswono, Veronica Putri; Dinnastyar, Faishal Ahmad; Marsen, Vinsen Alexander; Retnowati, Dewi; Anggorowati, Dwi Ana; Rahman, Nanik Astuti
jurnal ATMOSPHERE Vol. 4 No. 2 (2023): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v4i2.8471

Abstract

Gel organic fertilizer is the result of liquid organic fertilizer that is converted from liquid to gel, which is produced naturally. This gel organic fertilizer is an additional material used to meet the nutrient needs of plants to increase better productivity. The source of gel organic fertilizer is not much different from liquid organic fertilizer. Where the material for making gel organic fertilizer can be obtained from agricultural residues, MSME industries, factory waste that has no selling value such as vegetable waste, cheese whey waste, and molasses. This study aims to determine the effect of variable thickening agents on gel fertilizer from various gel structure modifiers. The treatments are as follows: The fixed variable is the fermentation time of 14 days and the independent variable of gel structure modifiers including tapioca starch, Carbopol 94, and Aquakeeper Hydrogel. The results of this research show that the treatment of free variables has a very significant effect and gives the best results without involving auxiliary media such as heating.
PRODUKSI MINUMAN INSTAN ROSELA DENGAN PENGONTROLAN PENGAWET DAN KONDISI OPERASI Rahman, Nanik Astuti; Hudha, Mohammad Istnaeny; Anggorowati, Dwi Ana
jurnal ATMOSPHERE Vol. 4 No. 2 (2023): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v4i2.8478

Abstract

Rosella, a plant previously known as a flower, is now one of the plants that is often used as an object of research. Apart from simplicia, rosella is produced as a drink that has health benefits. Rosella production includes tea, jelly candy, instant drinks, and syrup. Roselle syrup production is carried out using process engineering, namely temperature and heating time. The addition of sugar was also intended to see its effect on preserving the syrup. The sugar added is varied at 1; 1.25; and 1.5 kg. In the syrup-making process, citric acid is added to enhance the taste. In this research, the heating temperature was carried out at the boiling temperature, with the heating time varying between 10 minutes, 15 minutes, and 20 minutes. Heating is also carried out at a temperature of 85 °C with a heating time of 30, 40, and 50 minutes. Laboratory analysis of the product is vitamin C analysis. To test consumer acceptance of the product, a hedonic test is carried out, which includes tests on taste, color, and structure (viscosity). The results obtained by this research were a syrup product with the largest vitamin C content, namely 25,251 mg/100 g, at a heating variation of 85 °C with a heating time of 50 minutes. Optimal sugar addition at 1.25 kg
The Effect of Solvent and Amine Concentration on the Modification of Silica Sand Waste by Grafting Method as an Adsorbent Raharjanto, Dominica Edora Stella; Anggorowati, Dwi Ana; Rahman, Nanik Astuti
G-Tech: Jurnal Teknologi Terapan Vol 9 No 3 (2025): G-Tech, Vol. 9 No. 3 July 2025
Publisher : Universitas Islam Raden Rahmat, Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70609/g-tech.v9i3.7718

Abstract

Industrial waste is all types of waste materials or residual materials originating from the results of an industrial process. One of the industrial wastes in solid form is silica sand waste from the sandblasting process which has the potential to be used as a source of silica for adsorbents. This experiment is conducted to determine the type of solvent and the best addition volume of APTES in silica modification using amine (APTES). The process used in this experiment is a grafting process, where silica goes through a reflux process with solvents and APTES so that the amine groups attach to the surface of the modified silica. The results of the experiment is analysed using TGA and FTIR, and shows that the most optimal addition volume of APTES is 5 mL with the best types of solvents being ethanol and toluene solvents with the amount of amine loading contained in the modified silica being 1,9430 and 5,2552 mmol g aminopropyl/gram silica, respectively, but not in water solvents. The results of this study shows a successful APTES grafting of modified silica which can be used as an adsorbent for CO2 capture.
Rancang Bangun Aplikasi Pelaporan Koperasi Wanita Bhakti Ibu Kota Malang Laksmana, Dimas Indra; Rahman, Nanik Astuti; Hudha, Muhammad Istnaeny; Minah, Faidliyah Nilna
Aksiologiya: Jurnal Pengabdian Kepada Masyarakat Vol 2 No 2 (2018): Agustus
Publisher : Universitas Muhammadiyah Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30651/aks.v2i2.1275

Abstract

Statute Cooperative and Koperasi Wanita Bhakti Ibu is prepare accountability report, as well as submission of work plan and budget plan of expenditure of cooperative expenditure at Rapat Anggota Tahunan (RAT) Forum. Presentation of accountability report in RAT which is a forum for sharing is expected to give member's opportunity to objectively and constructively assess the existence and development of cooperative as a whole, in the field of organization, management, capital, business and other activities. The latest financial reports, therefore need improvement and innovation by creating a computerized reporting application to simplify and mitigate work and minimize errors in reporting figures. Research method used to analyze system on Koperasi and design system to cooperative. System analysis purpose is tobe able identify and evaluate problems that occur and expected needs, so it can be proposed improvement. After build application, resulted conclusions: (1) Based on trial, application run effectively, minimize errors in performing data storage and facilitate data search and transactions more quickly and accurately; (2) Based on trial, application capable reports of transaction or financial administration, according to user current desire.
Penggunaan mesin produksi dan penerapan K3 untuk mengurangi resiko kecelakaan kerja pada UMKM Artiyani, Anis; Budiharso, Hery Setyo; Sari, Sanny Andjar; Anggorowati, Dwi Ana; Setyawati, Harimbi; Rahman, Nanik Astuti; Ashari, Mohammad Ibrahim
Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) Vol. 5 No. 3 (2024)
Publisher : Universitas Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jp2m.v5i3.21876

Abstract

Kegiatan pengabdian kepada masyarakat dalam konteks Usaha Mikro, Kecil, dan Menengah (UMKM) di sektor manufaktur memiliki relevansi yang signifikan dalam mendukung perekonomian lokal. Salah satu contohnya adalah Bengkel Las Karmannaut yang berlokasi di Perumahan Citra Pesona Bumi Raya blok F5 no. 18. Untuk meningkatkan produktivitas dan keselamatan kerja di UMKM ini, Tim Pelaksana Pengabdian dari Institut Teknologi Nasional Malang telah menyelenggarakan kegiatan Workshop dan Pelatihan guna Peningkatan Pengetahuan tentang Penggunaan Mesin Produksi pada UMKM Bengkel Las. Tujuan kegiatan ini adalah untuk memberikan pelatihan kepada UMKM Bengkel Las Karmannaut tentang operasional penggunaan mesin bubut, teknik pemeliharaan mesin, serta kesadaran akan keselamatan kerja bagi para pekerja di Bengkel Las Karmannaut. Pelaksanaan kegiatan ini menggunakan metode Participatory Action Research (PAR) dan Foccus Grup Discussion (FGD) guna penyelesaian masalah yang dihadapi mitra pengabdian terutama tentang penggunaan dan pemeliharaan mesin bubut, serta penerapan K3 bagi UMKM Bengkel Las.Pelatihan mesin bubut menjadi penting sebagai investasi jangka panjang bagi pelaku usaha bengkel untuk meningkatkan keterampilan tenaga kerja, meningkatkan efisiensi operasional, dan tetap bersaing dalam industri manufaktur yang dinamis.Melalui pelatihan ini, diharapkan UMKM dapat mengoptimalkan proses produksi mereka secara efisien dan aman, sehingga berkontribusi positif terhadap pertumbuhan ekonomi lokal serta kesejahteraan masyarakat sekitar Kelurahan Kedungkandang.
Co-Authors -, Solekah -, Solekah Ady Dwi Tegar, Ahmad Nurul Hakim An Nasif Aladin Eko Purkuncoro Anis Artiyani Anita Ashari, Mohammad Ibrahim Atiqotuzzummah Atiqotuzzummah, Atiqotuzzummah Budiharso, Hery Setyo Christina Astutiningsih Darmayani, Satya Dimas Indra Laksmana Dinnastyar, Faishal Ahmad Dwi Ana Anggorowati Eky Novianarenti Elvianto Dwi Daryono Endah Kusuma Rastini Erlinda Ningsih, Erlinda Faidliyah Nilna Minah Febrina, Wetri Harimbi Setyawati Iryanti Fatyasari Nata, Iryanti Fatyasari Iswono, Veronica Putri Jimmy Khoiriyah, Aldina Fitri Lalu Mustiadi Maranatha Wijayaningtyas Marsen, Vinsen Alexander Masrurotul Ajiza Meri, Meri Mohammad Istnaeny Hudha Muhammad Rio Hendratama Oktavian, Dio Ajeng Prastiwi, Asya Wisma Raharjanto, Dominica Edora Stella Ratri, Theofilia Medya Retnowati, Dewi Rini Kartika Dewi Rizky Meidiana Faradila Rosyanti, Lilin Sanny Andjar Sari Siswi Astuti Sugiarto, Ady Dwi Tegar Supiati Supiati Tias Eka Rahmawati