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Carbon composite of NiO hydrothermal impregnation from sugarcane bagasse and its electrochemical properties Nasti, Al Nadine De; Siburian, Kyfti Yolanda; Sembiring, Abraham Danofan; Kristianto, Hans; Susanti, Ratna Frida; Oktaviano, Haryo Satriya; Nugroho, Agung
Jurnal Rekayasa Proses Vol 17 No 2 (2023): Volume 17, Number 2, 2023
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.88210

Abstract

Sugarcane bagasse (SB) can synthesize activated carbon (AC) through a two-step calcination process at calcination at 400oC and activation at 800oC. NaOH 0.1 M is used to activate the pre-carbonized sample in the activation step. The AC samples undergo hydrothermal impregnation with nickel oxide (NiO) at 110°C. The X-ray diffraction (XRD) pattern and Energy dispersive X-ray spectroscopy (EDX) confirmed the presence of NiO after this process. Scanning Electron Microscope (SEM) indicates the presence of pore structures in the sample morphology. A three-electrode system with 1 M Na2SO4 as an electrolyte was employed to assess the electrochemical properties. The specific capacitance for activated carbon derived from SB stands at 89.53 F/g at 0.05 A/g current density, while after impregnation with NiO, it increases to 250.53 F/g at the same current density. The results demonstrate the possibility of activated carbon from sugarcane bagasse waste composited with NiO as supercapacitor electrodes.
Experimental Study of The Effect of Fluid Mass Flow on Cavitation of The Ebara 65x50 FSS4JA Type Centrifugal Pump in a TCU Casting Machine: CENTRIFUGAL PUMP Safi'i, Muhamad; Nugroho, Agung; Ramdhani, Ahmad; Fahmi, Muhamad Idrokul; Nurkhalis, Yahdi Eka
CATHA SAINTIFICA Vol 3 No 1 (2025): May 2025 Article-in-Press
Publisher : Sentra Kekayaan Intelektual dan Inovasi Teknologi (INOTEK) Universitas Sains Al-Qur'an

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/cathasaintifica.v3i1.8868

Abstract

Pumps are often found and needed in everyday life, both in households and industry. Cavitation is often a major problem in centrifugal pumps because it affects their performance and performance. Experimental studies on the effect of fluid mass flow rate on cavitation in centrifugal pumps were investigated and characterized. The Ebara Brand centrifugal pump type 65x50 FSS4JA installed in the Casting Machine TCU installation was used as the object of research. In the experimental study, the number of constant impeller blades of 6 pcs and a blade tilt angle of 60º was studied for variations in fluid mass flow rate determined with values ​​of 1.67 kg/s, 3.33 kg/s, 5.67 kg/s, and 7.33 kg/s. The results of the research show that the fluid mass flow rate has a cavitation value of 0.2 for variations in the fluid mass flow rate of 1.67 kg/s, 0.65 for variations in the fluid mass flow rate of 3.33 kg/s, 1.9 for variations in the flow rate fluid mass 5.67 kg/s, and 1.88 with variations in fluid mass flow rate of 7.33 kg/s. These results confirm that the higher the variation in fluid mass flow rate, the higher the cavitation level, but strangely when the variation is increased from 5.67 kg/s to 7.33 kg/s the cavitation value slowly decreases, this confirms that the variation in fluid mass flow rate 7.33 kg/s is the optimal fluid mass flow rate variation and allows it to be applied in the field.
Analisis Struktur Naratif Kumpulan Cerpen Remaja Antibaper Toxic Karya Walidah Ariyani, dkk Angelina, Widia; Nugroho, Agung; Sari, Inda Puspita
JURNAL PERSPEKTIF PENDIDIKAN Vol 19 No 1 (2025): Jurnal Perspektif Pendidikan
Publisher : LP4MK STKIP PGRI Lubuklinggau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31540/jpp.v19i1.3437

Abstract

Penelitian ini bertujuan untuk mendeskripsikan analisis naratif kumpulan cerpen Remaja Antibaper Toxic karya Walidah Ariyani, dkk. Masalah dalam penelitian ini adalah abagaimana struktur naratif dala kumpulan cerpen Remaja Antibaper Toxic karya Walidah Ariyani, dkk? Metode yang digunakan adalah metode kualitatif. Pengumpulan data dilakukan dengan membaca kumpulan cerpen Remaja Antibaper Toxic karya Walidah Ariyani, dkk. Teknik yang dilakukan dengan mencari, mengumpulkan, menganalisis, mengolah data serta mempelajari buku-buku, jurnal atau laporan yang berhubungan dengan objek penelitian. Kemudian dikaji dengan struktur naratif todorov terhadap rangkaian cerita kumpulan cerpen Remaja Antibaper Toxic karya Walidah Ariyani, dkk. Hasil penelitian dan pembahasan dari 10 sub judul ditemukan bahwa struktur naratif dalam kumpulan cerpen Remaja Antibaper Toxic karya Walidah Ariyani, dkk., berupa keseimbangan pertama, gangguan/konflik, keseimbangan kedua
Enhancing Network Security: Evaluating SDN-Enabled Firewall Solutions and Clustering Analysis Using K-Means through Data-Driven Insights Ahmad Turmudi Zy; Isarianto; Rifa’i, Anggi Muhammad; Nugroho, Agung; Ghofir, Abdul
Jurnal RESTI (Rekayasa Sistem dan Teknologi Informasi) Vol 9 No 1 (2025): February 2025
Publisher : Ikatan Ahli Informatika Indonesia (IAII)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29207/resti.v9i1.6056

Abstract

In the face of escalating and increasingly complex cyber threats, enhancing network security has become a critical challenge. This study addresses this issue by investigating the optimization of SDN-enabled firewall solutions using a data-driven approach. The research employs K-Means clustering to analyze attack patterns, aiming to identify and understand distinct patterns for improved firewall effectiveness. Through the clustering process, attack data was classified into three clusters: Cluster 0, indicating concentrated attack sources likely tied to high-activity regions or networks; Cluster 1, representing a dispersed distribution of attacks, pointing to diverse origins; and Cluster 2, linked to specific geographic regions or unique attack behaviors. The clustering efficacy was evaluated using the Silhouette Score (0.606) and the Davies-Bouldin Index (0.614), indicating meaningful and reliable clustering outcomes. These findings provide actionable insights into network threat patterns, enabling the refinement and enhancement of SDN-enabled firewalls. The study contributes to the field by demonstrating the potential of clustering techniques in uncovering patterns overlooked by traditional methods and paving the way for further research into alternative clustering algorithms and broader applications in network security.
VALIDITY AND PRACTICALITY OF THE PROJECT MODULE: INTEGRATING PARAMASAN DAYAK LOCAL WISDOM Wardhani, Dyah Febria; Arisanty, Deasy; Nugroho, Agung; Utami, Umi Baroroh Lili
International Conference On Social Science Education Vol 2 (2024): 2nd International Conference On Social Science Education
Publisher : Fakultas Keguruan dan Ilmu Pendidikan, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/fn4yb318

Abstract

This study evaluates the validity and practicality of the developed The Pancasila Student Profile Strengthening Project module, designed to support the implementation of the Pancasila Student Profile. The module's validity was assessed across three key aspects: presentation, content, and language, achieving an average score of 93.75%, which classifies it as "very valid." The presentation was systematic and well-organized, while the content was highly relevant to the themes and student needs, though some areas were flagged for further improvement. The language used in the module was also rated highly, characterized by its clarity and communicative style. Revisions were implemented based on initial feedback, including corrections of typographical errors, improvements to the title, and the addition of essential elements within the module. The practicality of the module was evaluated by facilitators, who gave it an average score of 98.33%, indicating its suitability and ease of use in educational settings. Facilitators noted an enhanced understanding of project activity implementation and observed increased student motivation. The module was praised for its clear structure, well-defined learning objectives, and strong contextual relevance, all of which contribute to fostering student creativity and independence. In conclusion, the developed The Pancasila Student Profile Strengthening Project module shows considerable promise in enriching student learning experiences and advancing the educational objectives of the independent curriculum.
Analisis Asam Klorogenat dan Senyawa Volatil Seduhan Kopi Robusta Temanggung dengan Dripper Gerabah dan Plastik Rokhmah, Laela Nur; Seno, Binardo Adi; Nugroho, Agung
Jurnal Ilmu Pangan dan Hasil Pertanian Vol 6, No 2 (2022)
Publisher : Program Studi Teknologi Pangan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/jiphp.v6i2.14585

Abstract

Asam klorogenat dan senyawa volatile merupakan senyawa penciri pada kopi. Asam klorogenat merupakan senyawa yang memiliki banyak manfaat untuk kesehatan. Keberadaan senyawa volatil berperanan dalam fragrance, aroma  dan  flavor kopi. Keberadaan keduanya dipengaruhi oleh banyak hal termasuk bahan alat seduh kopi dalam hal ini yang digunakan adalah dripper. Dripper yang digunakan terbuat dari plastik dan gerabah. Tujuan dari penelitian ini adalah untuk mengetahui asam klorogenat dan senyawa volatile pada seduhan kopi robusta Temanggung dengan  menggunakan dripper berbahan gerabah dan plastik. Penelitian ini menggunakan kopi Robusta Temanggung, mesin roasting, alat seduh kopi, dripper berbahan gerabah dan plastik serta GCMS. Analisa asam klorogenat dan senyawa volatile digunakan dalam penelitian ini. Hasil penelitian menunjukkan asam klorogenat berbeda nyata pada hasil seduhan plastik dan gerabah. Nilai tertinggi ditunjukkan pada seduhan menggunakan dripper gerabah yaitu, 97,1 μg/mL sedangkan pada dripper plastik 93 μg/mL. Senyawa volatile berbeda nyata pada hasil seduhan dripper gerabah dan plastik. Konsentrasi asam asetat, asam n-butirat, asam isovalerat dan asam valerat untuk dripper gerabah lebih tinggi dibandingkan plastik. Sedangkan konsentrasi Asam propionat lebih tinggi pada hasil seduhan kopi menggunakan dripper plastik.
The UTILIZATION OF KELAKAI LEAF SILAGE (Stenochlaena palustris) AS SUPPLEMENTARY FEED FOR KELABAU (Osteochilus melanopleurus) IN BIOFLOC SYSTEM Syahputri, Octaviana D; Fauzana, Noor A; Hanafie, Agussyarif; Nugroho, Agung
Journal of Aquatropica Asia Vol 10 No 1 (2025): Journal of Aquatropica Asia
Publisher : Program Studi Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/joaa.v10i1.6234

Abstract

Kelabau is a species of indigenous fish from Kalimantan and Sumatra that is now rarely found in rivers. This is due to the fishing by fishermen who are less selective for years without being balanced with cultivation efforts. Cultivations have several aspects that need to be considered, namely the availability of feed that contains good nutrients and is in accordance with the needs of fish. Kelakai is an alternative that can be used as additional feed for kelabau. the use of the biofloc system is also rarely done in kelabau farming. The combination of kelakai leaf silage and biofloc system has the potential to increase the efficiency of kelabau farming by applying environmentally friendly technology. The study aims to analyze the growth performance of kelabau. The research was carried out in the Wet Laboratory located at the Faculty of Fisheries and Marine Science, Lambung Mangkurat University, Banjarbaru City, South Kalimantan Province. The research method used was an experimental approach with a Completely Randomized Design (RAL), consisting of 3 treatments which were repeated 3 times, so that a total of 9 experimental units were obtained, where Treatment K (Control) is commercial feed given at a dose of 5% of biomass weight, Treatment A is kelakai leaf silage at a dose of 5% of biomass weight, and Treatment B is commercial feed + kelakai leaf silage at a dose of 2.5% of biomass weight. The research results showed the best results in relative length of 121.5%, relative weight of 24.0%, and feed utilization efficiency of 47.3%. FCR showed the best results in treatment K of 0.68% and the best survival rate in treatments K and A of 99.3%. Treatment B can be considered as an alternative feed for the cultivation of kelabau in biofloc systems because it can improve growth performance.
Adaptation Test Variety of Cabbage Plant on the Reduction of Light Intensity Effendi, Mokhtar; Sugito, Yogi; Nugroho, Agung
RADIKULA: Jurnal Ilmu Pertanian Vol 2 No 1 (2023): RADIKULA - Juni 2023
Publisher : Fakultas Sains dan Teknologi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33379/radikula.v2i01.2643

Abstract

Cabbage (Brassica oleracea) is a vegetable commodity that has high economic value so it is widely cultivated by farmers in various countries. Data from the Central Statistics Agency (BPS) and the Directorate General of Horticulture show that in 2013 the cabbage harvest area in Indonesia was 65,248 ha, with production of 1,480,625 tons and productivity of 22.69 tons / ha (Central Statistics Agency and Directorate General of Horticulture , 2013). Opportunities for cabbage business development are increasingly widespread. The general public began increasingly fond of cabbage because in addition to good taste and as a vegetable food ingredient also because it contains quite high nutrition. Climate elements such as air temperature, solar radiation, and humidity support and play an important role in plant production. This is because plants need climate elements, especially the intensity of solar radiation. Each plant requires a certain range of solar radiation intensity for its growth, there are plants that require high light intensity and some are low. Processes in plants that can be affected by light intensity are photosynthesis, transpiration, respiration, nitrate reduction, protein synthesis, hormone production, translocation, aging, root growth and nitrate absorption (Struik and Deinum, 1982). In the development of cabbage cultivation one of the problems that has the potential to occur in the development of these plants is the low intensity of sunlight received by plants due to the shade of various objects or other plants so that plants do not get enough sunlight for their growth. Therefore, studies are needed to study how the adaptation of cabbage plants to a decrease in light intensity. According to Wolff and Coltman (1990) a reduction in the intensity of sunlight up to 30% to 47% can still be tolerated by cabbage plants. However, these conditions are apparently still within the limits of plant tolerance so that plant growth is not disrupted.
Kaji Eksperimen Pengaruh Jumlah Blade Impeller dan Laju Aliran Massa Fluida terhadap Kavitasi Pompa Sentrifugal Mesin TCU Casting Safi'i, Muhamad; Sinaga, Nazaruddin; Yohana, Eflita; Nugroho, Agung
JURNAL CRANKSHAFT Vol 8, No 2 (2025): Jurnal Crankshaft Vol. 8 No. 2 (2025)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/cra.v8i2.14572

Abstract

Kavitasi menjadi masalah utama pada pompa sentrifugal karena mempengaruhi kinerja dan efisiensinya. Studi eksperimental pengaruh jumlah blade impeller dan laju aliran massa fluida terhadap kavitasi pada pompa sentrifugal diselidiki dan dikarakterisasi untuk mengetahui fenomena dan karakteristik kavitasi. Pompa sentrifugal Merk Ebara tipe 65x50 FSS4JA yang terpasang pada instalasi TCU Mesin Casting dengan jumlah blade 4 pcs dan 6 pcs dengan sudut kemiringan konstan 60º digunakan sebagai objek penelitian. Variasi laju aliran massa fluida ditentukan dengan nilai 1,67 kg/s, 3,33 kg/s, 5,67 kg/s, dan 5,67 kg/s. 7,33kg/s. Hasil penelitian menunjukkan nilai kavitasi tertinggi diperoleh pada pompa sentrifugal dengan variasi jumlah blade 4 pcs dengan nilai NPSH 2,02 pada variasi laju aliran massa fluida sebesar 5,67 kg/s, sedangkan yang terendah terjadi pada pompa sentrifugal dengan variasi jumlah blade 6 pcs dengan nilai NPSH 1,88. Pada variasi laju aliran massa fluida sebesar 7,33 kg/s. Pompa sentrifugal dengan jumlah blade 6 pcs yang bekerja pada laju aliran massa fluida sebesar 7,33 kg/s menjadi hasil optimum dalam riset ini dan memungkinkan dapat diterapkan secara praktis di lapangan. Kata kunci:  Impeller, Kavitasi, Pompa, Sentrifugal.
PENERAPAN METODE PEMBELAJARAN TALKING STICK TERHADAP KEMAMPUAN MEMAHAMI STRUKTUR ISI TEKS NEGOSIASI PADA SISWA KELAS X MA MAZRO’ILLAH LUBUKLINGGAU Rani; Nugroho, Agung; Ramadan Lazuardi, Dian
Linggau Jurnal Language Education and Literature Vol. 5 No. 1 (2025): Linggau Jurnal Language Education and Literature
Publisher : LP3MKIL

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

Abstract

Penelitian ini bertujuan untuk mengetahui ketuntasan secara signifikan pembelajaran memahami struktur isi teks negosiasi siswa kelas X MA Mazro'illah Lubuklinggau melalui penerapan metode pembelajaran Talking Stick. Metode penelitian yaitu eksprimen semu. Populasi siswa kelas X berjumlah 48 siswa yang terdiri dari 2 kelas. Teknik pengambilan sampel menggunakan teknik simple random sampling dan sampel adalah kelas X IPA berjumlah 24 siswa. Pengumpulan data dengan teknik tes. Data dianalisis dengan menggunakan rumus uji t pada taraf signifikan sebesar α = 0,05. Hasil analisis data di dapat thitung = ˃ 3.9476 ttabel = 1,71, sehingga dapat disimpulkan kemampuan memahami struktur isi teks negosiasi siswa MA Mazro’illah Lubuklinggau setelah penerapan pembelajaran talking stick signifikan tuntas.
Co-Authors -, Widiyaningrum A.A. Ketut Agung Cahyawan W Abdiansyah, Rei Abdillah, Muhammad Mukhlis Abdul Ghofir Abdul Hadi Abdur Rahim, Abdur Abid, Syaiful Achmad Farid Wadjdi Achmad Sauki Adam, Rahendra Ade Evriansyah Lubis Adhi Setiawan Adinugraha, Ibnu Aditya Nugraha Putra, Aditya Nugraha Adityatama, Rizky Adriani, Dewi Erika Afifuddin, Agustia Agastya, I Made Artha Agung Haryono Agus Suryanto Agus Suwarno, Agus Agussyarif Hanafie Agustina, Faoza Lintang Ahmad Jauhari Ahmad Ramdhani, Ahmad Ahmad Syukron Ahmad Turmudi Zy Aini Nurul Ainin Niswati, Ainin Ainur Rofieq Aisyah, Siska Yulia Nur Aji Heru Muslim Aji Heru Muslim Alfaridzi, Salman Alhuda, Suredi Ali Nur Fathoni Alia Rahmi Am Maisarah Disrinama Amali, Amali Amalia, Nazwa Amanah, Nur Layli Amanda, Mardhatillah Fry Amin, Al Amrizal, Rizky Amrullah, Nafis Azmi Andi Nur Abady Andrea Rema Melati Andri Firmansyah Andriani, Ana Angelia Dwi Astuti Angelina, Widia Anggi Muhammad Rifa'i Anggun Pria Wibowo Angkasa, Syahreza Annas Setya, Ahsanul Falah Annisa, Shafira Annisya', Annisya' Antasya, Faridah Apriani, Rila Rahma Apriliyani, Khikmatul Arditama, Arda Arfianto, Afif Zuhri Ari Wibawa Budi Santosa Arief Setyanto Arief Subekti ARIF SUSILO Arif Tri Widiyatmoko Arif, MA Syamsul Arifin Muslim Arista, Ratna Arninputranto, Wibowo Audrey Amelia, Audrey Aulia, Muhammad Fathir Avanti Fontana Ayasti, Erlin Cindy Azizah, Puspita Nur Badarudin Badarudin Badrus Zaman Bahri, Valdis Gusri Bakhrudin All Habsy, Bakhrudin All Bambang Guritno Bambang Santoso Bayu Adi Nugroho, Bayu Adi Bayu Tri Pamungkas Beny Wijarnako Binardo Adi Seno Bintara, Andar Kaneka Putra Boby Helmi Brian Feri Andreeilee Budhiawan, Arif Budi Prasetyo Samadikun Budi Purwoko C. 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