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Menampilkan 1–10 dari 18 artikel
Effect of Different Layers on the Performance of Laminate Epoxy Composite Reinforced with Textile Waste
Thomas Junaedi
; Siregar, Januar Parlaungan
; Zalani, Mohamed Reza
; Imran, Al Ichlas
; Tezara Cionita
; Endah Murtiana Sari
; Deni Fajar Fitriyana
; Etanto Heiliano Wijayanto
Post-consumer textile waste poses significant environmental problems, but its potential for commercial recycling remains under-researched. Therefore, this study utilizes calico textile (CT) waste as reinforcement in polymer composites. The effect of layering number of CT in epoxy composite will be investigated. CT was varied with three layers, namely 1, 3, and 5 embedded in epoxy resin with the hand lay-up method in open molding. The mechanical testing of pure epoxy as a control point for tensil...
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STUDI KOMPARATIF KELAYAKAN USAHATANI PAKCOY (BRASSICA RAPA SUBSP. CHINENSIS) SECARA HIDROPONIK DAN KONVENSIONAL
Mediagro: journal of agricultural sciences
Vol 21
, No 3
(2025)
Pak choy farming is the organized cultivation of bok choy plants to produce economically valuable agricultural products. This study aims to determine the current state of hydroponic and conventional bok choy cultivation techniques and to compare the feasibility of hydroponic and conventional bok choy farming. A total of 18 bok choy farmers were interviewed. The analysis used in this study was the R/C Ratio and B/C Ratio. The results indicate that both cultivation methods are feasible because the...
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Effect of Natural Fiber Stacking Sequence on the Properties of Hybrid Composites for Drone Frame Applications
Janiviter Manalu
; Jefri Bale
; Khristhoper Aris Arianto Manalu
; Frans Augusthinus Asmuruf
; Fitriyana, Deni Fajar
; Nizar Alamsyah
; Januar Parlaungan Siregar
; Al Ichlas Imran
; Tezara Cionita
; Natalino Fonseca Da Silva Guterres
Advance Sustainable Science, Engineering and Technology (ASSET)
Vol 7
, No 4
(2025)
The present study highlights the effective utilization of waste fibers in structural composites for drone frame applications, offering a sustainable pathway for developing high-performance materials while simultaneously addressing the issue of textile waste pollution. This study investigates the effect of ramie and cotton fiber waste fabric stacking sequences on the physical and mechanical properties of composites for quadcopter drone frames. Waste fabric was selected as an eco-friendly material...
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Mechanical Properties of Epoxy Composite Reinforced with Spent Coffee Ground and Coffee Husk
Etanto Heiliano Wijayanto
; Imran, Al Ichlas
; Siregar, Januar Parlaungan
; Mohd Ruzaimi Mat Rejab
; Tezara Cionita
; Wisnu Prayogo
; Deni Fajar Fitriyana
; Rozanna Dewi
; Thomas Junaedi
; Agustinus Purna Irawan
Advance Sustainable Science, Engineering and Technology (ASSET)
Vol 7
, No 4
(2025)
This study aims to investigate the effect of increasing the concentration of natural filler on the mechanical properties of Spent Coffee Ground (SCG) / Coffee Husk (CH) reinforced epoxy matrix composite. The materials used in this study are epoxy resin as a matrix and waste coffee grounds and coffee husks as natural fillers with sizes of 100-mesh and concentrations of 10, 20, and 30 wt.%. The results showed that SCG 10 wt.% produced the best mechanical properties compared to the other samples ba...
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The Relationship Between White Blood Cell Count and Fever Duration in Typhoid Fever Patients at Ibn Sina Hospital, Makassar City, in 2023
Zulhijjah, A. Nurul Aimmah
; Hadi, Santriani
; Safei, Imran
; Julyani, Sri
; Kanang, Indah Lestari Daeng
Jurnal Kesehatan
Vol 18
, No 2
(2025)
Pendahuluan: Demam tifoid merupakan penyakit infeksi sistemik yang disebabkan oleh Salmonella Typhi, di mana endotoksin yang dihasilkan oleh bakteri tersebut dapat memengaruhi jumlah leukosit dan durasi demam. Penelitian ini bertujuan untuk mengetahui hubungan jumlah leukosit dengan durasi demam pada pasien demam tifoid di Rumah Sakit Umum Ibnu Sina, Makassar, tahun 2023. Metode: Penelitian ini merupakan penelitian observasional analitik dengan rancangan potong lintang dan pendekatan retrospekti...
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Mechanical Performance of Epoxy Composite Reinforced with Wood Dust and Crumb Rubber Waste
Imran, Al Ichlas
; Siregar, Januar Parlaungan
; Cionita, Tezara
; Fitriyana, Deni Fajar
; Anis, Samsudin
; Dewi, Rozanna
; Junaedi, Thomas
; Wijayanto, Etanto Heiliano
; Prayogo, Wisnu
Advance Sustainable Science, Engineering and Technology (ASSET)
Vol 7
, No 4
(2025)
The incorporation of wood dust and crumb rubber waste as filler in polymer matrix composite still requires in-depth evaluation of mechanical properties because they have different characteristics. This study evaluates the tensile, flexural, and hardness properties of epoxy composites reinforced with various fractions of wood dust and crumb rubber (5, 10, and 15%). The results showed that the composite with 5% crumb rubber produced the highest tensile strength of 15.52 MPa (CR5), while the highes...
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Mechanical Performance of Alkali-Treated Rattan Strips with Epoxy Coating for Sustainable Composite Applications
Kalatharan, Sujentheran Nair
; Imran, Al Ichlas
; Irawan, Agustinus Purna
; Siregar, Januar Parlaungan
; Cionita, Tezara
; Fitriyana, Deni Fajar
; Anis, Samsudin
; Dewi, Rozanna
; Setyoadi, Yuris
; Wisnu Prayogo
Advance Sustainable Science, Engineering and Technology (ASSET)
Vol 7
, No 3
(2025)
The use of natural materials like rattan in eco-friendly composites is gaining attention in materials engineering. However, its hydrophilic nature and interaction with other materials can affect mechanical strength. This study investigates how variations in rattan size and alkali treatment influence the tensile properties of single rattan strips through an epoxy dipping process. Rattan was prepared with varying lengths (5–15 cm), widths (3–8 mm), and a consistent thickness (0.5 mm). Alkali treat...
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1 Sitasi
Pengaruh Promosi Member Card dan Media Sosial terhadap Loyalitas Pelanggan Kaku Food Cabang Borong Kota Makassar
Muh. Erlangga
; Chalid Imran Musa
; Muhammad Ichwan Musa
; Zainal Ruma
; Muhammad Ilham Wardhana Haeruddin
Profit: Jurnal Manajemen, Bisnis dan Akuntansi
Vol 4
, No 2
(2025)
This research aims to determine the influence of Member Card promotions and social media on customer loyalty at the Kaku Food Borong branch Makassar City. The data used in this research is primary data of 100 samples. This type of research is included in quantitative research. The population in this study were all consumers who had shopped at the Kaku Food Borong branch in Makassar City and had a Member Card. Data collection was carried out using documentation and survey methods using questionna...
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Pengaruh Kualitas Produk dan Harga terhadap Kepuasan Pengguna Smartphone Oppo Reno di Kecamatan Maiwa Kabupaten Enrekang
Marwah Marwah
; Burhanuddin Burhanuddin
; Muhammad Ilham Wardhana Haeruddin
; Chalid Imran Musa
; Muhammad Ichwan Musa
Profit: Jurnal Manajemen, Bisnis dan Akuntansi
Vol 4
, No 1
(2025)
This exploration plans to decide and break down the impact of item quality on the fulfillment of Oppo Reno Cell phone clients in Maiwa Area, Enrekang Regime. To decide and break down the impact of cost on client fulfillment of Oppo Reno Cell phones in Maiwa Area, Enrekang Regime. This sort of exploration is enlightening quantitative, by conveying surveys with an example size of 110 respondents or Oppo Reno cell phone clients in Maiwa Locale, Enrekang Regime. Then, at that point, the information...
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Enhanced Diagnosis of Skin Cancer from Dermoscopic Images Using Alignment Optimized Convolutional Neural Networks and Grey Wolf Optimization
Journal of Computing Theories and Applications
Vol 2
, No 3
(2025)
Skin cancer (SC) is a highly serious kind of cancer that, if not addressed swiftly, might result in the patient’s demise. Early detection of this condition allows for more effective therapy and prevents disease development. Deep Learning (DL) approaches may be used as an effective and efficient tool for SC detection (SCD). Several DL-based algorithms for automated SCD have been reported. However, more efficient models are needed to improve accuracy. As a result, this paper introduces a new strat...
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10 Sitasi