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All Journal IPTEK The Journal for Technology and Science Prosiding Semnastek JTT (Jurnal Teknologi Terpadu) Turbo : Jurnal Program Studi Teknik Mesin Machine : Jurnal Teknik Mesin Martabe : Jurnal Pengabdian Kepada Masyarakat Manutech : Jurnal Teknologi Manufaktur Jurnal Teknik Mesin Indonesia Budimas : Jurnal Pengabdian Masyarakat International Journal of Educational Review, Law And Social Sciences (IJERLAS) International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) Jurnal Teknologi Dulang: Jurnal Pengabdian Kepada Masyarakat Prosiding Seminar Nasional Inovasi Teknologi Terapan Jurnal Inovasi Teknologi Terapan International Journal Of Synergi In Law, Criminal And Justice
Robert Napitupulu
Politeknik Manufaktur Negeri Bangka Belitung
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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RESTORATIVE JUSTICE FORMULATION POLICY IN THE CHILD CRIMINAL JUSTICE SYSTEM IN INDONESIA M. Luqman Hakim Siregar; Kasim; Robert Napitupulu; Roland Banjarnahor; Syaiful Asmi Hasibuan
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 3 No. 1 (2023): DECEMBER
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v3i1.333

Abstract

The discussion in this journal focuses on Restorative Justice Formulation Policy in the Juvenile Criminal Justice System. The aim of this research is to be able to properly analyze the basic ideas contained in restorative justice, its relation to children who are in conflict with the law and to be able to analyze the policy formulation regulated in Law no. 11 of 2012 concerning the Juvenile Criminal Justice System to realize restorative justice for children in conflict with the law. Meanwhile, the type of research used in this scientific journal is normative legal research, because it is based on the assessment that there is a conflict of norms between Law no. 11 of 2012 concerning the Juvenile Criminal Justice System with norms contained in the Criminal Code (KUHP). In this case, for unlawful acts committed by children who are not yet 18 (eighteen years old), diversion efforts are carried out with the aim of creating a balanced focus of attention between the interests of the perpetrator and the victim and also paying attention to the impact of resolving criminal cases that occur in society to ensure and protect children and their rights so that they can live, grow, develop and participate optimally in accordance with human dignity, as well as receive protection from violence and discrimination.
PEMBERDAYAAN KEMITRAAN MASYARAKAT MELALUI INTEGRASI TEKNOLOGI PRODUKSI, MANAJEMEN KEUANGAN, DAN PEMASARAN UNTUK PENGUATAN UMKM TAMBAK IKAN “TARULI” MENUJU KEMANDIRIAN EKONOMI Napitupulu, Robert; Sihombing, Septiana; Yuspita, Ni Luh Eta; Sihombing, Risna Primauli; Saputra, Benediktus Handaru; Christianty, Licia; Angelika, Vanessa
Jurnal Pengabdian Masyarakat Polmanbabel Vol. 5 No. 02 (2025): DULANG : Jurnal Pengabdian Kepada Masyarakat
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/dulang.v5i02.715

Abstract

The Community Partnership Empowerment Program for Strengthening the “Taruli” Fish Pond MSME towards Economic Independence aims to improve production efficiency, enhance business management, and expand market access through the implementation of technology and training. The main problems faced by the partner include high dependency on commercial feed, high production costs, unstructured financial management, limited access to capital, and marketing that still relies on middlemen at low and fluctuating prices. The proposed solutions include the installation of a pellet-making machine and feed ingredient chopper, training on feed formulation using locally available raw materials, assistance in financial record-keeping, preparation of a business plan, and strengthening marketing through branding and digital media. The results achieved show a significant impact on the production aspect, with a reduction in dependence on commercial feed by approximately 40% and production cost efficiency reaching 30–35%. The feed conversion ratio (FCR) has started to improve, while partners’ skills in feed production have significantly increased. In terms of business management, partners have started simple financial record-keeping and prepared a draft business plan, while in the marketing aspect, direct sales to consumers have begun along with the creation of business social media accounts. This program has proven to increase production independence, reduce production costs, and enhance the competitiveness of the MSME. However, several targets such as finalizing branding, securing access to financing, and product diversification still require further mentoring to maximize and sustain the overall impact.
Analisis Pemanfaatan Serbuk Gergaji Kayu Dan Egg Tray Sebagai Bahan Alternatif Tahan Panas Pada Genset Simangunsong, Kristian Jubatner; Napitupulu, Robert; Yuliyanto, Yuliyanto
Jurnal Inovasi Teknologi Terapan Vol. 3 No. 2 (2025): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v3i2.254

Abstract

Technological developments have encouraged the use of generator sets as an alternative source of electricity, but this also causes problems, such as excessive heat production that disrupts comfort in the work area. This study aims to utilize sawdust and egg tray waste as heat-insulating materials for generator sets. Sawdust, which is often discarded, can be utilized to reduce the negative impacts of using generator sets and overcome environmental pollution caused by this waste. Previous studies have shown that the combination of sawdust and starch at certain temperatures can produce products with good compressive strength. The results of the ANOVA analysis in this study showed that the volume fraction of 35%: 15% with a thickness of 20 mm gave the highest heat absorption coefficient of 43.06°C, while the volume fraction of 40%: 10% with a thickness of 10 mm produced the lowest value of 35.8°C. These findings emphasize the importance of selecting volume fractions and thicknesses in increasing heat absorption efficiency, as well as providing alternative solutions for the management of sawdust and egg tray waste.
Analisis Pengaruh Perekat Tepung Tapioka Pada Pengurangan Kadar Abu Briket Tempurung Kelapa Pratama, Randa Julio; Napitupulu, Robert; Kurniawan, Zaldy; Darta, Yuli
Jurnal Inovasi Teknologi Terapan Vol. 3 No. 2 (2025): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v3i2.269

Abstract

Binders play a vital role in briquette production by uniting charcoal particles into a solid form. This study aims to evaluate the effect of tapioca starch concentration as a binder on reducing the ash content of coconut shell briquettes. The binder concentrations used were 10%, 15%, and 20% of the total material mixture, with ash content testing conducted according to SNI 01-6235-2000 standards. The briquette production process involved raw material preparation, mixing, molding, and drying. The results indicated that binder concentration significantly influenced the ash content of the briquettes. Lower binder concentrations resulted in reduced ash content, with the lowest ash content of 1.52% achieved at a binder concentration of 10%. Conversely, higher binder concentrations tended to increase ash content due to residual binder that did not fully combust. This study emphasizes the importance of regulating binder concentration to enhance the quality of coconut shell briquettes as an alternative fuel source.
Analisis Pemanfaatan Serbuk Gergaji Kayu Dan Egg Tray Sebagai Bahan Alternaltif Peredam Suara Pada Genset Gemanial, Juan; Napitupulu, Robert; Juanda, Juanda
Jurnal Inovasi Teknologi Terapan Vol. 3 No. 2 (2025): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v3i2.276

Abstract

Noise is a serious problem that affects human health and comfort. This study aims to develop natural soundproofing materials from sawdust and egg trays as a more economical alternative to conventional soundproofing materials. Using an experimental method, this study analyzed the effect of volume fraction and specimen thickness on the sound absorption coefficient. The ANOVA results showed that both factors had a significant effect on certain frequencies. Specimens with a volume fraction of 40%:10% and a thickness of 20 mm produced the highest sound absorption coefficient of 0.163, while specimens with a volume fraction of 35%:15% and a thickness of 10 mm recorded the lowest value of 0.04. These findings indicate that the optimal combination of volume fraction and thickness can increase the effectiveness of the material in reducing noise, providing a sustainable solution to overcome noise problems in the surrounding environment.
LEGAL ACCOUNTABILITY FOR THE PERSONNEL OF THE CRIME OF THEFT WITH AGRAM IN THE MEDAN STATE COURT Yasmirah Mandasari Saragih; Robert Napitupulu; Utrechk Ricardo; Sri Devi Zebua
International Journal of Educational Review, Law And Social Sciences (IJERLAS) Vol. 3 No. 4 (2023): July
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijerlas.v3i4.939

Abstract

Judge's Consideration in Imposing Imprisonment Against Perpetrators of the Crime of Theft in Medan District Court In Decision Number: 1039/Pid.B/2022/PN Mdn The defendant was charged with theft in aggravating circumstances, carried out by means of juridical and non-juridical considerations proving the defendant guilty imposed on Article 363 paragraph (1) 4rd, 5th of the Criminal Code and Law Number 8 of 1981 concerning the Criminal Procedure Code and other relevant laws and regulations, so that the defendant is sentenced to imprisonment for 3 (three) ) year and 6 (six) months was deducted while the defendant was in temporary detention. Evidence in the perpetrators of the crime of theft in Medan District Court In Decision Number: 1039/Pid.B/2022/PN Mdn, considering the elements, a) whoever,
PENERAPAN TEKNOLOGI TEPAT GUNA PENGOLAHAN LIMBAH KELAPA MUDA SEBAGAI MEDIA PUPUK ORGANIK KELAPA SAWIT DI KABUPATEN BANGKA Napitupulu, Robert; Dharta, Yuli; Subkhan, Subkhan; Arsieka Putri, Diviya; Parlindungan, Devaned; Pratama, Aldi; Hasdiansah, Hasdiansah; Lavita Angelina, Clara
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 6, No 2 (2023): martabe : jurnal pengabdian kepada masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v6i2.434-441

Abstract

Penerapan teknologi tepat guna pengolahan limbah kelapa muda sebagai media pupuk organik kelapa sawit di Kabupaten Bangka, merupakan kegiatan pengabdian dosen dan mahasiswa dengan melibatkan mitra, yaitu masyarakat yang peduli akan lingkungan dan aktif dalam pengembangan dan budidaya kelapa sawit di Kabupaten Bangka. Permasalahan yang dihadapi mitra adalah sulitnya mendapatkan pupuk yang disebabkan karena mahalnya harga pupuk anorganik dipasaran dan berdampak pada pengurangan hasil panen buah sawit. Selain itu, limbah kelapa muda jumlahnya sangat besar, apalagi dikala bulan puasa. Ini menjadi masalah tersendiri karena berpotensi menyebabkan terjadinya pencemaran lingkungan dan menjadi sarang penyakit. Limbah kelamud ternyata bisa digunakan menjadi bahan baku pembuatan pupuk organik bagi tanaman kelapa sawit. Saat ini proses pengolahan limbah kelamut masih dilakukan dengan cara manual menggunakan parang. Untuk dapat memecahkan masalah Mitra tersebut, maka kegiatan pengabdian kepada masyarakat ini dilaksanakan berupa pemberian bantuan penerapan TTG dalam pengolahan limbah kelamud serta pemberian pelatihan berupa cara pengoperasian dan perawatan mesin pengolah limbah kelamud dalam bentuk ceramah, diskusi, praktek dan introduksi mesin pencacah limbah kelamud untuk dijadikan bahan baku pupuk organik. Pelaksanaan kegiatan pengabdian kepada masyarakat ini nantinya diharapkan mitra mampu membuat pupuk organik dengan memanfaatkan limbah kelamud dan juga dapat mengurangi limbah kelamud yang tidak bermanfaat yang dapat menimbulkan berbagai penyakit. Hasil dari kegiatan ini mampu membantu IKM mengatasi persoalan pengolahan limbah kelamud menjadi lebih cepat dan efektif dengan kapasitasnya 201,04 Kg/jam sehingga mempercepat Proses pembuatan pupuk organik bagi tanaman kelapa sawit.
Analisis Pemanfaatan Flyash Sebagai Alternatif Bata Beton Untuk Meningkatkan Kuat Tekan Triyanto, Romy Ade; Napitupulu, Robert; Juanda, Juanda
Manutech : Jurnal Teknologi Manufaktur Vol. 17 No. 02 (2025): Manutech: Jurnal Teknologi Manufaktur
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/manutech.v17i02.470

Abstract

Coal is an alternative energy that is used as energy for electricity generation and so on. The results of burning coal produce several wastes that are difficult to process and reuse, one of the wastes produced is fly ash, fly ash waste has several contents similar to cement material, one of which is silica. Use of fly ash as an additive to concrete bricks. This research aims to determine the effect of using fly ash as an additional material on compressive strength tests on concrete bricks and to determine the highest and lowest values ??of the composition of fly ash and sand. In this research, we will use the full factorial method to determine the number of specimens that will be made in the research, variations in the composition of fly ash: sand used are 10%: 60%, 20%: 50%, and 30%: 40%, with a ratio of cement: water fixed 2 : 1 and drying for 3 and 5 days. Compressive strength testing will be carried out on 6 specimens with 3 replications on each specimen so that the total number of specimens tested is 18 specimens. Based on the results of the best compressive strength test on specimen No.1 with a mixture of fly ash (10%): sand (60%), with a drying time of 3 days, the average maximum strength was 57.91 kg/cm2, while the strength test results The lowest pressure was produced on sample No. 4 with a composition of fly ash (10%) : sand (60%) with a drying time of 5 days which produced an average compressive strength test result which had a maximum value of 30.59 kg/cm2.  
Rancangan Sistem Informasi Perawatan Preventif Berbasis Website di Bengkel Mekanik Politeknik Manufaktur Negeri Bangka Belitung Christianty, Licia; Irwan, Irwan; Swengky, Better; Napitupulu, Robert
Jurnal Teknologi Vol 25, No 3 (2025): Desember 2025
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v25i3.7858

Abstract

Machine maintenance plays a crucial role in ensuring the smooth operation of practical activities at the Mechanical Workshop of Politeknik Manufaktur Negeri Bangka Belitung. The current manual maintenance process often causes scheduling delays, recording errors, and difficulties in monitoring machine conditions. This study aims to design and implement a web-based preventive maintenance information system to enhance the efficiency and effectiveness of machine management. The development process applies the Agile method using the Laravel framework and MariaDB as the database management system. The system includes key features such as machine data management, maintenance scheduling, submission and approval workflows, automated email notifications, integration with the Google Calendar API, and maintenance and spare part reporting modules. The system was tested using the black box testing method, which confirmed that all functions operated according to user requirements. Questionnaire results from laboratory staff, lecturers, and students indicated that the system improved scheduling consistency, data recording accuracy, and the effectiveness of notification features in reminding users of maintenance schedules. Approximately 50% of respondents agreed that the system successfully manages maintenance scheduling in a structured and computerized manner, while the notification feature helps reduce the risk of maintenance negligence. Therefore, the developed system serves as an effective digital solution to support preventive maintenance management in vocational education environments
KEKUATAN TARIK DAN MODULUS ELASTISITAS BAHAN KOMPOSIT BERPENGUAT SERAT BAMBU DAN FILLER SERABUT KELAPA Anugrah Harita, Efata; Napitupulu, Robert; Dwi Krishnaningsih, Shanty
Prosiding Seminar Nasional Inovasi Teknologi Terapan Vol. 2 No. 01 (2022): Prosiding Seminar Nasional Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

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

Abstract

ABSTRACT The reason for conducting this review is to determine the effect of alkalization on the tensile strength and elasticity of composites of bamboo fiber and coconut fiber with a polyester matrix by varying the NaOH with concentrations of 0%, 2%, and 5%. Alkalization is one of the modifications of natural fibers to develop a compatible fiber-matrix. This exploration strategy uses the hand lay-up technique. In the main cycle, bamboo fiber and coconut fiber were treated without alkalization or 0% alkalization and in the next interaction, bamboo and coconut fiber were soaked in water (2% and 5% NaOH) for 2 hours. Then, at that time, each treatment process was formed into a composite according to the standard tensile test of ASTM D638 – II. The volume portion of bamboo fiber is 15%, coconut fiber is 15% and polyester resin is 70%, and the arrangement of bamboo fibers and coconut fibers is arranged horizontally. The matrix used in this study is a polyester resin matrix of type 157 BTQN with 1% MEKPO hardener. The highest concentration from this review showed that bamboo fiber and coconut fiber composites with NaOH variations of 0%, 2% and 5% respectively had tensile strengths of 34.9 MPa, 34.9 MPa and 54.74 MPa. The highest concentration with 5% NaOH produced the highest tensile strength of 54.74 MPa, while the coconut fiber composite without alkalization had the lowest tensile strength of 34.9 MPa.
Co-Authors Abda Abda Adhe Anggry Aldi Pratama Angelika, Vanessa Anugrah Harita, Efata Aqila Zanjabila Ariansyah Ariansyah, Ariansyah Ariel, Ariel Arif Wahyudi Ariyanto Ariyanto Arliansyah, Arul Arriyani, Yang Fitri Arsieka Putri, Diviya Benny Nainggolan Better Swengky chardova, andreas Christianty, Licia Clara Lavita Angelina Darta, Yuli Devaned Parlindungan Dharta, Yuli Diviya Arsieka Putri Doni Dyas Ryfkiansyah Efata Anugrah Harita Efata Anugrah Harita Eko Yudo Erin Aftarini Fadhlurrahman, Miftah Febri Sulistiyo Febrian Arif Ferdian, Ferdian Feriadi, Indra Firdi Irawan Gemanial, Juan Gilang Perdana Haikal ikhsan, Muhammad Harita, Revival Praise Harwadi, Harwadi Hasdiansah, Hasdiansah HERMANSYAH RHOMADAN Hernawan, Sutrisno Herwandi Herwandi Husman Husman Idiar, Idiar Indradewa, Rhian Irawan, Rizki Irwan Irwan Jekki Dodi Parlindungan Sihombing Juanda Juanda Juanda Kasim Kris Josua Pardede Kris Josua Pardede Kris M Romario4 M. Haritsah Amrullah M. Luqman Hakim Siregar Mar'i Akbar, Firzan Masdani, Masdani Meidiantara , Muhammad Rizki Muhammad Akbar Muhammad Bahit Muhammad Haritsah Amrullah Muhammad Yunus Muharramin, Areza Nanda Pranandita Nurwijayanti Parlindungan, Devaned Pranata, Yogi Pratama, Adrian Deka Pratama, Aldi Pratama, Randa Julio Pristiansyah, Pristiansyah Purma , Purma Reni Febrianti Ridho Bagus Purwansyah Rio, Rio Pratama Rodika Roland Banjarnahor Roperiadi RR. Ella Evrita Hestiandari Rullyansyah Samosir, Reguel Samuel Napitupulu, Rabinaswil Saputra, Benediktus Handaru Sateria, Angga Shanty Dwi Krishnaningsih Shanty Dwi Krisnaningsih Shanty Dwi Krisnaningsih Sihombing, Risna Primauli Simangunsong, Kristian Jubatner Sitinjak, Harpois S Soepangkat, Bobby Oedy Pramoedyo Sri Devi Zebua Subkhan Subkhan Subkhan Subkhan Sugianto Sugianto Suzen, Zaldy Sirwansyah Syaiful Asmi Hasibuan, Syaiful Asmi Triyanto, Romy Ade Utrechk Ricardo Yasmirah Mandasari Saragih Yuli Dharta Yuliyanto Yuliyanto Yuspita, Ni Luh Eta Zaldy Kurniawan