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Menampilkan 11–20 dari 91 artikel
Effect of Biomass Feedstock Granulometry on Thermophysical Characteristics of Charcoal Briquettes via Screw Extrusion
Samsudin Anis
; Jefri Bale
; Septian Eko Cahyanto
; Ninda Kurniadi
; Fitriyana, Deni Fajar
; M. Thooriq Anwar
; Januar Parlaungan Siregar
; Natalino Fonseca Da Silva Guterres
Advance Sustainable Science, Engineering and Technology
Vol 7
, No 4
(2025)
The present study investigates the impact of particle size variation (10, 18, 20, and 35 mesh) on the physical and thermal properties of charcoal briquettes from coconut shells manufactured with a screw-based extruder machine. The briquette manufacturing process involves crushing, mixing, molding, and drying. Assessments were conducted to ascertain friability, compressive strength, density, calorific value, volatile matter, ash content, fixed carbon, and water content. Comparable assessments wer...
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INTEGRASI TEKNOLOGI AUGMENTED REALITY DALAM PEMBELAJARAN MATEMATIKA UNTUK MENINGKATKAN PEMAHAMAN GEOMETRI SISWA
JIPMat (Jurnal Ilmiah Pendidikan Matematika)
Vol 10
, No 2
(2025)
Penelitian ini bertujuan mengevaluasi efektivitas integrasi teknologi Augmented Reality (AR) sebagai media pembelajaran dalam meningkatkan pemahaman konsep geometri siswa di sekolah menengah pertama dengan keterbatasan infrastruktur. Pendekatan kuasi eksperimental digunakan dengan melibatkan dua kelompok: kelompok eksperimen yang memperoleh pembelajaran berbasis AR yang dikembangkan secara lokal dan dapat diakses secara offline, serta kelompok kontrol yang menggunakan metode konvensional. Data d...
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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
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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Program Intensif Empat Sesi: Pelatihan Universitas Kolaboratif Dalam Bidang Penerjemahan Dan Penjurubahaasaan
Hikmaharyanti, Putu Desi Anggerina
; Sri Rwa Jayantini, I Gusti Agung
; Verayanti Utami, Ni Made
; Deni Ariyaningsih, Ni Nyoman
; Oktarina Wisudayanti, Kadek Heni
; Adi Putra, Nyoman Canestra
Adi Widya: Jurnal Pengabdian Masyarakat
Vol 9
, No 2
(2025)
Artikel ini menyajikan rancangan, pelaksanaan, dan hasil dari program intensif empat sesi yang bertujuan untuk meningkatkan keterampilan penerjemahan dan penjurubahasaan di kalangan mahasiswa. Program ini merupakan proyek kolaboratif pengabdian masyarakat antara dua universitas yang dirancang untuk menjembatani kesenjangan antara pembelajaran teoretis dan penerapan di dunia nyata. Setiap sesi mengintegrasikan pembelajaran berbasis praktik langsung, dan kolaborasi antarmahasiswa, dengan fokus pad...
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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
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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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
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
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
Legal Issues in the Enforcement of Pledged Collateral Not in the Creditor’s Possession under Civil and Islamic Law: (A Case Study of Supreme Court Decision No. 600/PK/Pdt/2021)
Jurnal Penelitian Serambi Hukum
Vol 18
, No 02
(2025)
Under civil law, the execution of a pledge requires physical possession of the pledged object by the creditor. However, in practice, it is not uncommon for the pledged object to be outside the creditor's control when the debtor defaults. This raises legal issues regarding execution and creditor protection. This study aims to analyze the legal consequences of executing a pledge guarantee when the object is not in the creditor's possession, from the perspective of civil law and Islamic law. The me...
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Penyelesaian Sengketa Gugatan Pembatalan Akad Pembiayaan Mudharabah Menurut Hukum Perdata dan Hukum Islam
Jurnal Penelitian Serambi Hukum
Vol 18
, No 02
(2025)
This research examines the dispute resolution mechanism for mudharabah contract cancellation by integrating civil law and Islamic law perspectives in Indonesia. Mudharabah contract as a sharia financial instrument requires a clear dispute resolution mechanism when cancellation occurs due to breach of contract or violation of sharia principles. The research method uses a normative juridical approach with case analysis of Supreme Court Decision Number 272 K/Ag/2015 between PT. Permodalan BV and Ko...
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A RECYCLING DEVICE FOR CONVERTING PET BOTTLES INTO FILAMENT MATERIAL FOR 3D PRINTERS
Teknika
Vol 10
, No 1
(2025)
Plastic bottles made from Polycarbonate (PC) are widely used for mineral water packaging. The use of these materials results in a large amount of plastic-type waste, which is bad for the environment if not handled properly. The plastic bottle packaging is only recommended for one-time use. Plastic bottles made from PET can be processed and used as raw material for 3D printers. The processing of these plastic bottles uses microcontroller technology, which is made to adjust the temperature for hea...
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