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All Journal Dinamika Informatika Jurnal Informatika dan Teknik Elektro Terapan JMPM (Jurnal Material dan Proses Manufaktur) JURNAL CRANKSHAFT Jurnal Listrik, Instrumentasi, dan Elektronika Terapan Jurnal Dinamika Informatika (JDI) Applied Science and Technology Research Journal
Dhananjaya Yama Hudha Kumarajati
Universitas PGRI Yogyakarta
Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Comparison of 3D Printing Technologies for Polymer-HA Bone Scaffolds: A Systematic Review Toward Hybrid Fabrication Strategies Kumarajati, Dhananjaya Yama Hudha; Herianto; Herliansyah, Muhammad Kusumawan; Kusmono; Tontowi, Alva Edy
APPLIED SCIENCE AND TECHNOLOGY REASERCH JOURNAL Vol. 4 No. 2 (2025): Applied Science and Technology Research Journal
Publisher : Lembaga Penelitian dan Pengabdian Mayarakat (LPPM) Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31316/astro.v4i2.8230

Abstract

Bone scaffold fabrication using 3D printing faces a fundamental dilemma: the trade-off between mechanical strength and biological functionality. To address this challenge, a systematic literature review (SLR) of 28 primary research articles was conducted to compare various hydroxyapatite-based scaffold fabrication technologies. The analysis confirms a clear trade-off: Fused Filament Fabrication (FFF) excels in mechanical strength, Digital Light Processing (DLP) in architectural precision (<100 µm), and Direct Ink Writing (DIW) in flexibility for bio-functionality, proving no single method is ideal. The main conclusion is that hybrid fabrication strategies—intelligently integrating the strengths of multiple technologies—offer the most promising approach to creating functional scaffolds with an optimal balance of strength and bioactivity for future clinical applications.
Technology Trends, Innovations, and Future Research Directions in 3D Printing (Additive Manufacturing): A Systematic Literature Review Santoso, Banu; Dhananjaya Yama Hudha Kumarajati; Herianto; Alva Edy Tontowi; Muhammad Kusumawan Herliansyah
APPLIED SCIENCE AND TECHNOLOGY REASERCH JOURNAL Vol. 4 No. 2 (2025): Applied Science and Technology Research Journal
Publisher : Lembaga Penelitian dan Pengabdian Mayarakat (LPPM) Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31316/astro.v4i2.8232

Abstract

3D printing or Additive Manufacturing (AM) technology has experienced rapid growth in the past five years, driven by the integration of new technologies such as artificial intelligence (AI), bio- and nano-composite materials, and blockchain-based security systems. This study aims to analyze technology trends, key innovations, and predict future research directions in AM using a Systematic Literature Review (SLR) approach to 80 Scopus/WoS indexed articles. The results show that AI plays a central role in improving production efficiency and accuracy, while material innovations expand AM applications to the medical and aerospace sectors. In addition, the application of 4D printing and blockchain is beginning to form a new paradigm in intelligent and decentralized manufacturing. The 2025–2030 research roadmap compiled from these findings shows a strategic focus on adaptive AI, multifunctional bioinks, modular manufacturing systems, and full integration between AM, blockchain, and smart materials. This study not only identifies research trends and gaps but also offers strategic contributions to the development of future AM technologies in a more adaptive, sustainable, and secure manner.
Design And Analysis of 3D Printable Prosthetic Foot with Honeycomb Structure Kumarajati, Dhananjaya Yama Hudha
APPLIED SCIENCE AND TECHNOLOGY REASERCH JOURNAL Vol. 2 No. 2 (2023): Applied Science and Technology Research Journal
Publisher : Lembaga Penelitian dan Pengabdian Mayarakat (LPPM) Universitas PGRI Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31316/astro.v2i2.5628

Abstract

This study designs and analyzes a 3D printable prosthetic foot with a honeycomb structure, which has many benefits for prosthetic foot design and analysis. The honeycomb structure can provide high strength and stiffness with low weight and material consumption, variable stiffness and damping properties, and biomimetic structure and function. This study uses 3D printing technology and finite element analysis (FEA) to design and fabricate the prosthetic foot and to evaluate its performance under different loading scenarios. The results show that the prosthetic foot has a satisfactory performance and meets the biomechanical requirements of the human foot. The results also show that 3D printing technology and FEA are reliable and valid tools for prosthetic foot design and analysis. This study contributes to the development of better and more affordable prosthetic feet and provides useful insights and guidelines for future research and practice.
ALAT MONITORING DETAK JANTUNG PORTABLE MENGGUNAKAN SENSOR MAX30102 Ramlan Bugis, Elmi Ramlan; Nur’Aidha, Amalia C.; Kumarajati, Dhananjaya Yama Hudha
Jurnal Informatika dan Teknik Elektro Terapan Vol. 12 No. 3 (2024)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v12i3.4504

Abstract

Heart disease is a condition in which the heart cannot function properly and is one of the leading causes of death worldwide. This research aims to develop a device to identify the electrical activity generated by the heart, as the heart contracts by using electronic components to monitor and record a person's heartbeat. The tool to detect heart rate is made simple, lightweight and small that can be carried or moved easily. Tests were carried out by comparing measurements of tools made with Oximeter and showed an error rate of 6.41%. The average error based on the data obtained is 2.61%. By considering the disturbances that occur during measurement, it is certain that the monitoring tool made works well.
SISTEM DETEKSI DETAK JANTUNG BERBASIS SENSOR MAX30102, ARDUINO UNO, DAN OLED DISPLAY UNTUK PEMANTAUAN DETAK JANTUNG SECARA REAL-TIME jannah, maulida uswatun; Nur'aidha, Amalia Cemara; Kumarajati, Dhananjaya Yama Hudha
Jurnal Informatika dan Teknik Elektro Terapan Vol. 12 No. 3 (2024)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v12i3.4528

Abstract

Gangguan kesehatan yang disebabkan oleh detak jantung dapat mengakibatkan kerja jantung menjadi tidak maksimal. Salah satu penyakit yang disebabkan oleh gangguan detak jantung yaitu aritmia. Gangguan ini mengakibatkan kerja detak jantung menjadi lebih lambat atau lebih cepat. Penelitian ini bertujuan untuk merancang dan mengimplementasikan sistem deteksi detak jantung menggunakan sensor MAX30102 yang diintegrasikan dengan mikrokontroler Arduino Uno dan layar OLED. Pengujian setelah dilakukan dengan membandingkan hasil pengukuran sensor dengan alat pulse oximeter dalam dua kondisi yaitu tidak beraktivitas dan berlari. Hasil menunjukkan bahwa rata-rata tingkat akurasi sensor MAX30102 mencapai 98% saat tidak beraktivitas dan 99% setelah berlari, menunjukkan bahwa sensor ini dapat dipanggil untuk pengukuran detak jantung.
RANCANG BANGUN SISTEM PEMILAH LIMBAH MEDIS BERBASIS ARDUINO DAN INDUCTIVE PROXIMITY Renhoran, Cia; Ismail, Muthia Muthmainnah; Priyaniti, Ajeng Ayu; Saputra, Edi Arno; Kumarajati, Dhananjaya Yama Hudha
Jurnal Informatika dan Teknik Elektro Terapan Vol. 12 No. 3 (2024)
Publisher : Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jitet.v12i3.4941

Abstract

Abstrak.   Rumah sakit dan industri kesehatan menjadi sumber limbah medis dan non-medis yang signifikan. Apabila tidak dikelola dengan baik, dapat mencemari lingkungan dan menimbulkan risiko kesehatan. Di Indonesia, limbah medis mencapai 138 ton/hari dengan potensi peningkatan 30-50% setiap tahun. Teknologi modern, termasuk otomatisasi, dapat membantu meningkatkan efisiensi pengelolaan limbah. Salah satu solusi inovatif adalah sistem pemilah medis berbasis Arduino dan sensor Induktif Proximity. Sistem ini dirancang untuk mengidentifikasi dan memilah limbah medis secara efisien, mengurangi risiko infeksi, dan melindungi lingkungan. Arduino Atmega 2560 mengontrol sensor Induktif Proximity dan inframerah untuk mendeteksi jenis limbah medis. Hasil pengujian menunjukkan bahwa sensor Induktif Proximity efektif mendeteksi limbah logam seperti jarum suntik, pisau, klip bedah, pipet, dan gunting, dengan waktu respon cepat berkisar antara 0.1 hingga 0.5 detik. Sementara itu, sensor inframerah mampu mendeteksi limbah non-logam seperti face shield, masker, sarung tangan karet, perban, dan bekas botol infus dengan respon cepat antara 0.1 hingga 0.3 detik.Abstrak. Rumah sakit dan industri kesehatan merupakan sumber limbah medis dan non medis yang signifikan. Jika tidak dikelola dengan baik, limbah medis dapat mencemari lingkungan dan menimbulkan risiko kesehatan. Di Indonesia, limbah medis mencapai 138 ton/hari dengan potensi peningkatan 30-50% setiap tahunnya. Teknologi modern, termasuk otomatisasi, dapat membantu meningkatkan efisiensi pengelolaan limbah. Salah satu solusi inovatif adalah sistem pemilahan limbah medis berbasis Arduino dan sensor Induktif Proximity. Sistem ini dirancang untuk mengidentifikasi dan memilah limbah medis secara efisien, mengurangi risiko infeksi, dan melindungi lingkungan. Arduino Atmega 2560 mengendalikan sensor Induktif Proximity dan inframerah untuk mendeteksi jenis limbah medis. Hasil pengujian menunjukkan bahwa sensor Induktif Proximity efektif mendeteksi limbah logam seperti jarum suntik, pisau, klip bedah, pipet, dan gunting, dengan waktu respon cepat berkisar 0,1 hingga 0,5 detik. Sementara itu, sensor inframerah mampu mendeteksi limbah non-logam seperti pelindung wajah, masker, sarung tangan karet, perban, dan bekas botol infus dengan waktu respon cepat antara 0,1 hingga 0,3 detik.
Desain Inovatif Kaki Palsu Low Cost : Pendekatan Finite Element Analysis Kumarajati, Dhananjaya Yama Hudha
Jurnal Dinamika Informatika Vol. 12 No. 2 (2023): Jurnal Dinamika Informatika Vol.12 No.2
Publisher : Universitas PGRI Yogyakarta

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

Abstract

This research aims to develop an affordable, innovative prosthetic leg design using a Finite Element Analysis (FEA) approach. Lower limb loss is a serious problem for many individuals, and prosthetic limbs are becoming a common solution, but the high cost and lack of availability of effective designs are major obstacles. The research method involved a literature study on prosthetic limbs, prosthetic limb modeling, and FEA. In this research, we model the geometry of a prosthetic leg using 360 fusion, apply FEA to understand its mechanical behavior, and optimize the design based on the analysis results. FEA testing shows that the proposed prosthetic leg design is capable of withstanding a load of 1000N with a minimum safety factor of 3.64. The results of this research indicate that the resulting prosthetic leg design can be an effective and affordable solution for individuals in need, with the potential to improve quality of life and mobility.
Analisis biomekanik kaki palsu tiruan jenis energy stock and recovery (ESR) dengan finite element analisys Yoanita, Yulia Venti; Kumarajati, Dhananjaya Yama Hudha; Marfuah, Hasti Hasanati
JURNAL CRANKSHAFT Vol 6, No 2 (2023): Jurnal Crankshaft Vol. 6 No. 2 (2023)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/crankshaft.v6i2.11090

Abstract

Kaki palsu harus dirancang sedemikian rupa sehingga nyaman dipakai sepanjang hari. Ini mencakup pemilihan bahan yang lembut dan tahan lama untuk bagian yang bersentuhan dengan kulit, serta perpaduan yang baik antara dukungan struktural dan fleksibilitas. Pasien dengan amputasi kaki memiliki tantangan mobilitas dalam kehidupan sehari hari. Salah satu alat bantu gerak yang mampu secara efisien dan mandiri digunakan oleh pasien adalah kaki palsu. Terdapat beberapa jenis cacat dan kebutuhan kaki palsu, diantaranya adalah cacat pada bagian kaki bagian bawah / telapak kaki. Kaki palsu yang berada di pasaran Indonesia baru berpusat pada kaki palsu jenis konvensional yang tidak memberikan sensasi berjalan selayaknya orang normal. Maka dari itu perlu dikembangkan kaki palsu jenis ESR yang memberikan sensasi berjalan seperti orang normal karena kaki palsu jenis ini mampu menyimpan dan mengembalikan energi melalui mekanisme pegas. Tahapan penelitian yang akan dilakukan diantaranya adalah studi literatur dan referensi desain untuk reverse engineering, proses desain 3D dengan menerapkan kaida ergonomik, analisis biomekanik menggunakan metode finite elemen analysis, rapid prototyping 3 Printing, setelah itu dilakukan uji kekuatan mekanis dari hasil cetak 3D. Dari hasil penelitian menunjukkan bahwa desain kaki palsu yang telah dikembangkan, mampu menahan beban tubuh manusia.
Co-Authors Agisna, Faza Ajeng Ayu Priyaniti Alva Edy Tontowi Alva Edy Tontowi Amalia Cemara Nuraidha, Amalia Cemara Banu Santoso Cia Renhoran Edi Arno Saputra Hasti Hasanati Marfuah Herianto Ismail, Muthia Muthmainnah Janna, Rufaida Fatkhul jannah, maulida uswatun Khulayfah, Ade Fitri Kusmono maulida uswatun jannah Muhammad Kusumawan Herliansyah Muthia Muthmainnah Ismail Nur’Aidha, Amalia C. Priyaniti, Ajeng Ayu Ramlan Bugis, Elmi Ramlan Renhoran, Cia Saputra, Edi Arno Yulia Venti Yoanita