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Menampilkan 1–10 dari 16 artikel
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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3D Model Autocad Of The Piston Displacer Cup For A Gamma Stirling Engine Using The API Method
Rahmat, Rahmat
; Dean Anggara Putra
; Rifo Nurlaksana Restu
; Jefri Imron
; Marhaendra Natawibawa
; Hery Sumardiyanto
; Khairil Munawar
; Thomas Junaedi
Jurnal Elektronika dan Komputer
Vol 18
, No 1
(2025)
When producing a perfect product, design process namely 2D modeling and 3D drawing, are closely related. The purpose of this study is to design a 3D model of a gun mastering machine product as a fan drive using CAD applications. The method of this study is decision data on API production (analytical product inspection). Measurement of sterling machine degradation using CPK (deviation) received results of -0.97, -0.22, 0.86, 0.11, 0.11 between zero and what indicates this specification. On averag...
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Penyuluhan Program Keselamatan Dan Kesehatan Kerja Konstruksi Bangunan Gedung Untuk Perencanaan Dan Pembangunan Desa Kemuning
Agustinus Sungsang Nana Patria
; Amrita Winaya Shita Dewi
; Pramesta Armanisag Pangestuti
; Thomasonan Lutfie Prananto
Jurnal Suara Pengabdian 45
Vol 4
, No 2
(2025)
Desa Kemuning merupakan salah satu Desa yang terletak di Kec. Ngargoyoso, Kab. Karanganyar Jawa Tengah. Desa Kemuning mempunyai potensi dalam bidang pariwisata yang dikenal luas oleh masyarakat. Dalam proses pengembangan desa, salah satu permasalahan yang ada pada Desa Kemuning adalah kurangnya perhatian masyarakat tentang pentingnya Keselamatan dan Kesehatan Kerja (K3) dalam proses konstruksi. Sehingga Dosen Program Studi Teknik Sipil Universitas 17 Agustus 1945 Semarang melaksanakan kegiatan p...
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Menjadi Kampung Temaaatik dan Wisata Religi di Desa Sumur, Kendal
Perigel: Jurnal Penyuluhan Masyarakat Indonesia
Vol 4
, No 1
(2025)
Poverty and environmental problems in settlements in Kendal Regency are challenges in sustainable development. This community service program aims to improve community welfare through the concept of thematic villages and religious tourism in Sumur Village, Brangsong District. The methods used include counseling to the community regarding environmental management and economic development based on local potential. The results of the activity showed that the community began to understand the concep...
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PENERAPAN HUKUM PIDANA SEBAGAI ULTIMUM REMEDIUM PADA KASUS PERPAJAKAN PASCA UNDANG -UNDANG NO. 7 TAHUN 2021 TENTANG HARMONISASI PERATURAN PERPAJAKAN N
Dinamika Hukum
Vol 15
, No 2
(2024)
Countries that have stable economic strength can be classified as large countries.However, the existence of stable economic strength and prosperity depends on thelevel of public awareness in paying their tax obligations. This research aims toexamine a number of 53 tax criminal decisions following the enactment of Law No.7 of 2021 concerning Harmonization of Tax Regulations in the 2022 tax year basedon the principle of ultimum remedium by looking at the theory associated with thisproblem, namely...
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Perencanaan partisipatif taman tematik Perumahan Kampoeng Semawis Semarang
Perigel: Jurnal Penyuluhan Masyarakat Indonesia
Vol 3
, No 1
(2024)
This community service focuses on participatory planning of thematic parks at the Kampoeng Semawis Housing Complex, Semarang. This area has great potential to be developed into a useful public space, but currently the existing green open space is still less than optimal in its use. The focus of this service is to create a thematic park that not only functions as a green open space, but also as a place for social interaction and education for residents. The main issue faced is the lack of communi...
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Pemodelan Gelombang Guna Menentukan Evaluasi Kelayakan Kapal Pada Pelabuhan Marapokot, Kab. Nagekeo, Prov. Nusa Tenggara Timur
Jurnal Teknik Sipil
Vol 16
, No 2
(2023)
Pemodelan Gelombang pada Pelabuhan Marapokot, Kab. Nagekeo, Provinsi Nusa Tenggara Timur melingkupi Kawasan pantai (coastal area) hingga perairan Marapokot. Penyebaran gelombang dipengaruhi oleh kontur dasar perairan, angin, dan arus perairan dimana pergerakan gelombang ditransformasikan menurut variasi topografi dasar perairan tersebut. Ada beberapa tipe transformasi gelombang, diantaranya: pendangkalan (shoaling), pecah (breaking), refraksi (refraction), difraksi (difraction) dan lain-lain. Pe...
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Pemodelan Gelombang Guna Menentukan Evaluasi Kelayakan Kapal Pada Pelabuhan Maumbawa, Kab. Ngada, Prov. Nusa Tenggaran Timur
Journal of Civil Engineering and Technology Sciences
Vol 2
, No 1
(2023)
Pemodelan Gelombang pada Pelabuhan Maumbawa, Kab. Ngada, Provinsi Nusa Tenggara Timur melingkupi Kawasan pantai (coastal area) hingga perairan Maumbawa. Penyebaran gelombang dipengaruhi oleh kontur dasar perairan, angin, dan arus perairan dimana pergerakan gelombang ditransformasikan menurut variasi topografi dasar perairan tersebut. Ada beberapa tipe transformasi gelombang, diantaranya: pendangkalan (shoaling), pecah (breaking), refraksi (refraction), difraksi (difraction) dan lain-lain. Pemode...
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Studi Morfologi Sungai Asahan Hulu Wilayah Sungai (WS) Toba Asahan Provinsi Sumatra Utara
Journal of Civil Engineering and Technology Sciences
Vol 1
, No 2
(2023)
Wilayah Sungai (WS) Toba Asahan terbagi menjadi dua Daerah Aliran Sungai (DAS), yaitu DAS Toba dan DAS Asahan. Luas DAS Toba mencapai 3.789,07 km2 atau 52,44% dari luas total WS Toba Asahan dan mempunyai 153 anak sungai dimana semuanya bermuara di Danau Toba. Sedangkan DAS Asahan terbagi menjadi tiga sub DAS, yaitu Sub DAS Asahan dengan Sungai Asahan sebagai sungai utarnanya dan rnempunyai 34 anak sungai, Sub DAS Silau dengan sungai utamanya adalah Sungai Silau dan mempunyai 38 anak sungai, sert...
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