Article Per Year (5 Year)
p-Index From 2019 - 2024
2.177
P-Index
This Author published in this journals
All Journal Phi : Jurnal Pendidikan Fisika dan Terapan agriTECH Elkawnie CIRCUIT: Jurnal Ilmiah Pendidikan Teknik Elektro Amina AL-KHAZINI: JURNAL PENDIDIKAN FISIKA Lingkar : Journal of Environmental Engineering Bayt ElHikmah: Journal of Islamic Architecture and Locality
Sri Nengsih
Universitas Islam Negeri Ar-raniry Banda Aceh
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Physics Other

Published : 15 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 15 Documents
Search

 1   2 
REVIEW LITERATUR: SINTESIS PASIR BESI MENJADI NANOPARTIKEL MAGNETIT MELALUI PENERAPAN METODE KOPRESIPITASI Sri Nengsih
AMINA Vol 3 No 3 (2021): December 2021
Publisher : Department of Chemistry, Faculty of Science and Technology, UIN Ar-Raniry

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

Abstract

Proses sintesis nanopartikel magnetit (Fe3O4) dari pasir besi melalui metode kopresipitasi telah diteliti untuk berbagai proses variasinya. Adapun tujuan kajian ini agar menemukan tahapan proses sintesis yang sesuai untuk menghasilkan ukuran nanopartikel magnetit di bawah 100 nm. Pendekatan kualitatif dipilih dalam kajian ini untuk mendapatkan informasi selengkapnya. Sumber data yang digunakan adalah dari jurnal berskala nasional maupun jurnal internasional. Temuan yang didapatkan dari kajian ini adalah perlunya perlakuan awal pada bahan dasar pasir besi alami sebelum dilakukan proses sintesis untuk mendapatkan kemurnian pasir besi. Pada tahapan sintesis nanopartikel magnetit diperlukan kontrol pada jumlah komposisi bahan yang dicampurkan, kontrol proses sintesis dan lingkungan sekitarnya. Melalui kontrol tersebut diharapkan dapat ukuran nanopartikel magnetit yang homogen dan distribusi partikelnya lebih banyak serta terhindar dari aglomerasi partikel.
Implementasi Model Problem Based Learning (PBL) Berbasis Eksperimen Untuk Meningkatkan Aktivitas Belajar Peserta Didik Pada Materi Getaran Di SMP Juniar Afrida; Sri Nengsih; Saifiyaturramah Saifiyaturramah
Al-Khazini Vol 2 No 1 (2022): APRIL
Publisher : UIN Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (326.805 KB) | DOI: 10.24252/al-khazini.v2i1.30566

Abstract

The learning model becomes an important factor when the learning process is carried out because the learning model is a plan that helps based on the continuity of the learning process and can be implemented in accordance with the learning objectives. So it is necessary to apply an experimental-based problem besed learning (PBL) learning model to increase students’ learning activitieson vibration material. This study aims to (1) apply the experimental-based problem-based learning (PBL) learning model to improve student learning activities (2) find out the results of observations obtained through the experimental-based problem based learning, learning model. The research method used is the experimental research method (the Non-Equivalent Group Design). The results obtained from three observers are in the experimental class the average score for implementation =89%, Reaction =89% and activity = 84% with a very active category. While in the control class the average score for implementation =53% reaction 55% and activity 51% with the less active category. So it can be said that the application of the experimental-based learning model can improve the learning activities of students on vibration material at SMP Negeri 1 Simpang Ulim.
PENGARUH TEMPERATUR CAMPURAN LIMBAH CAIR TAHU LIMBAH ROTI DAN FESES SAPI TERHADAP HASIL BIOGAS Ody Gunawan; Nur Aida; Sri Nengsih
Lingkar : Journal of Environmental Engineering Vol 3 No 2 (2022): LINGKAR : Journal of Environmental Engineering
Publisher : Program Studi Teknik Lingkungan Fakultas Sains dan Teknologi UIN Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (683.957 KB) | DOI: 10.22373/ljee.v3i2.2310

Abstract

Pembuangan limbah usaha kecil seperti industri tahu dan tempe secara langsung dapat menimbulkan dampak negatif bagi lingkungan. Limbah cair tahu dapat dimanfaatkan, salah satunya adalah bahan bakar biogas yang tentunya berguna bagi masyarakat. Selain limbah tahu, limbah roti juga dapat digunakan sebagai bahan untuk pembuatan biogas. Limbah cair tahu dan limbah roti memiliki semua komponen yang dapat dijadikan sebagai feedstock untuk proses biogas yang menjanjikan karena limbah roti dan limbah cair tahu mudah didapatkan. Penelitian ini bertujuan untuk mengetahui hasil dari kombinasi limbah cair tahu, limbah roti dan feses sapi yang sudah kadaluarsa serta untuk mengetahui zat apa saja yang dihasilkan oleh kombinasi limbah cair tahu, limbah roti dan feses sapi yang sudah kadaluarsa. Pengamatan pada suhu di dalam biodigester dilakukan selama 42 hari, dan hasil dari pengamatan didapatkan suhu rata-rata pada digester 1= 31,4, pada digester 2= 31,2, dan pada digester 3= 31,2. Proses produksi gas berada pada rentang suhu diatas 30oC yang merupakan rentang suhu yang optimal untuk produksi biogas. Hasil pengujian dari GC-MS tidak teridentifikasi adanya gas metana tetapi didapati Kandungan 5-Methyl-3-propyl-isoxazole dengan persentase 64,37%, zat Cyclononasiloxane, octadecamethyl- dengan persentase 7,98 %, dan Cyclooctasiloxane, hexadecamethyl- dengan persentase 6,79 %. Senyawa ini dari kelompok cycloheptasiloxane menurut ulasan yang diterbitkan oleh Hassan (2016) adalah senyawa yang mencakup agen antibakteri, antikoagulan dan anti-inflamasi.
Identification of Trimyristine from Oil, Crystals, and Residue of Nutmeg (Myristica fragrans) in South Aceh (Indonesia) Using GC-MS Bhayu Gita Bhermana; Sri Nengsih; Heri Hasmizal
agriTECH Vol 43, No 2 (2023)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.70430

Abstract

South Aceh Regency is the largest nutmeg-producing area in Aceh Province, Indonesia, but its potential for oil production has not been fully optimized. Nutmeg (Myristica fragrans) oil is one of the essential oil groups obtained from the distillation of the nutmeg plant, including its peel, mace, and seeds. One of the essential compounds found in nutmeg oil is trimyristin. Therefore, this research aimed to identify and determine the content of trimyristin in the oil, crystals, and residue of nutmeg seeds from South Aceh. It was carried out in stages wherein nutmeg oil distillation was performed by a simple distillation method. Trimyristin was separated from the oil using the reflux method and from the residue by the maceration method. The compound was obtained from the isolation of nutmeg oil using chloroform as a solvent. The oil was characterized based on SNI No. 06-2388 of 2006, then trimyristin was isolated and identified by Gas Chromatography-Mass Spectrophotometry (GC-MS). The results showed that the characterization of nutmeg oil did not fulfill the SNI . The color and smell tests were not in accordance with those of nutmeg oil, the specific gravity was 0.909, the refractive index was 1.63, and the solubility in alcohol was cloudy. Trimyristin of 11.23% was only found in the residue, but it was not detected in the oil and crystals.
Pengaruh Bukaan Pada Ruangan Rumah Type 36 Terhadap Kenyamanan Termal Menurut Persepsi Pengguna Yeni Bayak Miko; Sri Nengsih; Zia Faizurrahmany El Faridy
Bayt ElHikmah: Journal of Islamic Architecture and Locality Vol 1 No 2 (2023): Bayt El Hikmah
Publisher : Prodi Arsitektur, Fakultas Sains dan Teknologi bekerja sama dengan Lembaga Penelitian dan Pengabdian kepada Masyarakat, Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/jial.v1i2.4141

Abstract

Abstract. A house as a shelter for the occupants requires ventilation, both natural and artificial, to achieve thermal comfort. Openings allow air to circulate in and out of the building, thus affecting the humidity and temperature of the building. The research was located in the Type 36 Mutiara Baet Residence housing complex, in Baet Village, Baitussalam District, Aceh Besar Regency. The case study is a house facing west, east, north, and south which has openings without direct sunlight. Using a mixed method research method, which combines qualitative and quantitative models. Qualitative methods are carried out using documentation, interviews, and observation. while the quantitative method is carried out through measurements of humidity, wind speed, and temperature. Interview results showed that 70% of building occupants said that the residence they lived in felt hot so it was uncomfortable to be indoors without mechanical cooling, while the existing openings could not be maximized for natural ventilation as intended. The remaining 30% of respondents thought that openings could help reduce heat. The results of thermal measurements, the average temperature in the living room was 30.93°C, while the average temperature in the kitchen room was 30.99°C. The results of measuring the average humidity (RH%) in the living room was 46.40% and the average humidity (RH%) in the kitchen room was 46.18%. Only 20% of residential living rooms and kitchens in Mutiara Baet Residence have wind circulation, while in the other 80% of residences, the detected wind speed is 0.0 m/s, which means there is no wind movement/circulation
Co-Authors Bhayu Gita Bhermana Heri Hasmizal Ida Meutiawati Irpan Ependi Juniar Afrida Nur Aida Ody Gunawan saifiyaturrahmah saifiyaturrahmah Saifiyaturramah Saifiyaturramah Yeni Bayak Miko Zia Faizurrahmany El Faridy