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All Journal ORBITA: Jurnal Pendidikan dan Ilmu Fisika Sarwahita : Jurnal Pengabdian Kepada Masyarakat International Journal of STEM Education for Sustainability Jurnal FisTa : Fisika dan Terapannya International Journal of Renewable Energy Development Jurnal Pengabdian Dinamika
Yus Rama Denny, Yus Rama
Department of Physics Education, University of Sultan Ageng Tirtayasa.
Humanities Astronomy Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Physics Social Sciences Other

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DISEMINASI DAN PELATIHAN TEKNOLOGI ALAT INTEGRATED EMBEDDED SENSING SYSTEMS BAGI UKM SATE BANDENG AWAL PUTRA MANDIRI DI KOTA SERANG Denny, Yus Rama; Assaat, Lusiani Dewi; Perdana, Fachruddin; Gustiono, Vaka
Bahasa Indonesia Vol 20 (2023): Sarwahita : Jurnal Pengabdian Kepada Masyarakat Vol. 20 Edisi Khusus Tahun 2023
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/sarwahita.20k.3

Abstract

UKM Awal Putra Mandiri is an activist for the city of Serang's superior product Sate Bandeng so that it can develop by seeing a sustainable business opportunity by exploiting existing potential. UMKM Sate Bandeng Awal Putra Mandiri, is one of the UMKMs that provides Sate Bandeng products and has product supplies at the national level. The results obtained from the discussion contained problems that were experienced, namely that technology had not been implemented which was able to detect the freshness and content of dangerous substances in milkfish raw materials in a real-time, practical manner. This Community Service activity includes dissemination and training on Integrated Embedded Sensing System technology products for detecting the level of freshness of food ingredients and the content of dangerous substances. The implementation of Community Service activities runs well and smoothly, so that employees and UKM owners are very interested in using technological tools. Apart from that, this activity can reduce the costs incurred by UKMs due to mistakes in buying fish that is not fresh.. Abstrak UKM Awal Putra Mandiri merupakan penggiat produk unggulan kota Serang Sate Banden g sehingga dapat berkembang dengan melihat suatu peluang usaha yang berkesinambungan dengan memanfaatkan potensi yang ada. UMKM Sate Bandeng Awal Putra Mandiri, menjadi salah satu UMKM yang menyediakan produk Sate Bandeng dan memiliki pasokan produk ke tin gkat nasional. Hasil yang didapatkan dari diskusi terdapat permasalahan yang di alami yaitu belum diterapkan teknologi yang mampu mendeteksi kesegaran dan kandungan zat berbahaya pada bahan baku ikan bandeng yang real- time, dan praktis. Kegiatan Pengabdian Masyarakat inimeliputi diseminasi dan pelatihan produk teknologi Integrated Embedded Sensing System untuk deteksi tingkat kesegaran bahan pangan dan kandungan zat berbahaya. Pelaksanaan kegiatan Pengabdian Masyarakat berjalan dengan baik dan lancar, sehingga para karyawan dan owner UKM sangat tertarik dengan menggunakan alat teknologi. Selain itu, dari kegiatan tersebut mampu menekan biaya pengeluaran UKM untuk kesalahan membeli ikan yang tidak segar.
PENINGKATAN MUTU UMKM KOMODITAS IKAN GUNA PEMASARAN YANG BERSKALA LUAS Denny, Yus Rama; Permana, Sandy; Nurilmy, Novita; Wahyuni, Sri
Jurnal Pengabdian Dinamika Vol 9, No 1 (2022)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/dinamika.v9i1.17350

Abstract

PandemiCOVID-19memilikidampakbesarterhadapsegalaaspekdansektordikehidupanmasyarakatterutamapadasektorekonomi,disisilaindigitalMarketingadalahsalahsatumediapemasaranyangsaatinisedangbanyakdiminatioleh masyarakat untuk medukungberbagai kegiatan yang dilakukan. Tujuan dari penelitian ini meningkatkan mutu dari suatu produkhasilkomoditasdidesacigondangserta meningkatkan pasar yang luas sehingga pemutaranekonomi dapat berangsur membaik. Metode yang digunakan pada penelitian ini ada 3 yaitu yangpertamasurveydata lapangan yang berguna untuk mendapatkan data yang valid tentang warga yangmempunyai rumah produksi, yang kedua sosialisasi seminar yang ingin kami adakan di desacigondang dan yang ketiga seminar dengan materi tentang packaging serta cara menggunakan mediasosial untuk menjadikan pasar. Hasil dari penelitian ini berupa produk yang siap dipasarkan danpeningkatan ilmu dalam penggunaan media sosial sebagai pasar yang luas.
PERAN MAHASISWA DALAM MENINGKATKAN KESADARAN MASYARAKAT UNTUK MEMUTUS MATA RANTAI PENYEBARAN COVID- 19 DI KELURAHAN NEROKTOG Denny, Yus Rama; Afrilia, Rilva; Halimatusa’diyah, Syifa; Wati, Peradea; Hafith, Muhammad; Yulianti, Ria Retno; Azzahra, Zalza Afni
Jurnal Pengabdian Dinamika Vol 8, No 1 (2021)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/dinamika.v8i1.12965

Abstract

This articlerelates totheroleofstudents inincreasingpublicawareness oftheNeroktogUrbanVillage, TangerangCityaspartoftheStudentWorkLectureActivities(KKM).This activityaims tosocializeandprovide informationaboutthe importanceofimplementingstricthealthprotocolsasaformofeffortindecidingand minimizingthespreadofthecoronavirus.Themethodusedinconductingthissocializationisthroughcounseling andprovidinginformationinthe form ofpostersaboutthe importance ofwearingdouble masks,implementing healthylivingbehaviors,thebenefitsof following vaccines,andhealthprotocolsusedwhenleavingthehouse. Thisactivitywascarriedoutonlinebyproviding thisinformationthroughpostson Instagramand WhatsApp groupsofNeroktogVillageresidents.Theresultsofthis socializationactivityareexpectedafterthe implementationoftheThematicKKM, itisimportantthatparticipants andresidents ofNeroktogVillagealready knowabouttheimportanceofimplementinghealthprotocols.However,inpracticeitturnsoutthattheawareness ofthesurroundingcommunityregardingtheimportanceofimplementinghealthprotocols is stilllacking, especiallyregardingmaintainingasafe distance.Inaddition,people'smobilityoutsidethe houseisstilldifficult tocontrol,eitherfor workorjustgoingoutofthehouse.Withthis socialization,itishopedthattheparticipants withtheirauthorityas villageofficialscantransmittheirknowledgeandunderstandingtothecommunity, especiallytheresidents ofNeroktogVillage
Mapping drought prone areas using the weight overlay method in Serang Regency Sania, Annidatus; Ruhiat, Yayat; Denny, Yus Rama
ORBITA: Jurnal Pendidikan dan Ilmu Fisika Vol 11, No 1 (2025): May
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/orbita.v11i1.30326

Abstract

This research aims to analyse or estimate drought vulnerability in Serang Regency. The background of this research is based on areas that often experience moderate and even high levels of drought. The research method used is quantitative by using rainfall parameters, soil type parameters, and land use parameters which are then put together using the overlay method to obtain drought vulnerability areas in Serang Regency. Based on the results of the research, there are areas with low, medium, and high levels of drought vulnerability. The area with the largest drought vulnerability in Serang Regency is at the medium level of vulnerability. The results of the map analysis of the level of drought vulnerability indicate that there is a relationship between each parameter, with most of the drought vulnerability being influenced by several factors, including rainfall, soil type, and land use.
Karakterisasi Struktur Kristal Nanopartikel Fe3O4@PEG:ZnO Maharani, Rivia; Denny, Yus Rama; Antarnusa, Ganesha
Jurnal FisTa Fisika dan Terapannya Vol 6 No 1 (2025): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

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Abstract

In this study, Fe3O4@PEG:ZnO nanoparticles were synthesized using the coprecipitation method. Synthesis is carried out to produce nano-sized materials with wide application potential. Synthesis is carried out through three stages, namely Fe3O4 production, Fe3O4 coating with polyethylene glycol (PEG-4000), and Fe3O4@PEG doping with ZnO. Characterization was carried out using X-Ray Diffraction (XRD) tests to analyze the crystallographic properties and structure of the material. The results of XRD analysis showed that the crystal size at Fe3O4 was 7,963 nm and Fe3O4@PEG:ZnO was 6.014 nm. The combination of the magnetic properties of Fe3O4 and the photocatalytic properties of ZnO makes this material have the potential for wide applications in environmental fields, such as the degradation of organic pollutants in water. This research contributes to the development of nanoparticle-based multifunctional materials that support sustainable technology, thereby providing significant benefits for applications in the energy and environmental fields.
Analisis Hasil XRD Nanopartikel Fe3O4 dengan Variasi Suhu Sintesis Amanda Febriliani; Denny, Yus Rama; Antarnusa, Ganesha
Jurnal FisTa Fisika dan Terapannya Vol 6 No 1 (2025): APRIL
Publisher : Fakultas Matematika Ilmu Pengetahuan Alam dan Kebumian, Universitas Negeri Manado

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Abstract

Nanopartikel Fe3O4 disintesis menggunakan metode kopresipitasi, yang menghasilkan material berukuran nano dengan potensi yang dapat diaplikasikan dalam berbagai jenis bidang. Bahan dasar yang digunakan dalam sintesis ini yaitu FeCl3.6H2O, FeSO4.7H2O, larutan NH4OH, dan aquades. Nanopartikel Fe3O4 dikarakterisasi dengan Uji X–Ray Diffraction (XRD) yang digunakan untuk menganalisis besar ukuran kristalit dan besar parameter kisi dari nanopartikel yang disintesis dengan dua suhu yang berbeda. Dari hasil analisis XRD menunjukkan bahwa ukuran kristalit pada Fe3O4 yang disintesis dengan suhu 40 sebesar 7,82 nm dan besar nilai parameter kisi 8,18 A. Sedangkan Fe3O4 dengan besar suhu sintesis 60 memiliki ukuran kristal sebesar 8,99 nm dan besar nilai parameter kisi 8.17 A. Dari hasil penelitian yang telah dilakukan ini, menunjukkan bahwa pertumbuhan ukuran kristalit nanopartikel Fe3O4 akan meningkat sesuai dengan peningkatan suhu reaksi TR dari 40 C menjadi 60 C.
Development of Used Cooking Oil Circulation Reactor for Biodiesel Production as Learning Media of Vocational Mechanical Engineering Student Hartono, Rudi; Denny, Yus Rama; Ramdani, Sulaeman Deni; Assaat, Lusiani Dewi
International Journal of STEM Education for Sustainability Vol 3, No 1 (2023)
Publisher : Gemilang Maju Publikasi Ilmiah (GMPI) 

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53889/ijses.v3i1.161

Abstract

This study aimed to develop and test the feasibility of a waste cooking oil-based biodiesel reactor prototype media used as a learning medium with a circulation system. The method in this research is Research and Development using the Waterfall model. The stages in the waterfall development model are (1) requirements definition including (needs analysis, analysis of used cooking oil characteristics, analysis of renewable energy, hardware requirements), (2) implementation and unit testing, (3) integration and system testing including: (testing the reactor, and testing the appropriateness of the media and materials), (5) operation and maintenance include: (testing the biodiesel reactor to students ). The research subjects were three lecturers as material expert validators and media experts and ten mechanical engineering vocational students as users to test the product's feasibility. The research results are as follows; development of biodiesel reactor media and results of feasibility research by media experts got an average score of 4.48 with the category "very feasible." Assessment by material experts got an average score of 4.5 with the category "very feasible," and ratings from users got an average score of 4.095 with the category " decent."
Upcycling EAF graphite electrode waste into graphene-oxide–doped PEDOT:PSS for inverted perovskite solar cells Denny, Yus Rama; Fadli, Mohamad; Santoso, Muhammad Iman; Ramdani, Sulaeman Deni; Jafar, Rafa; Meilani, Meilani
International Journal of Renewable Energy Development Vol 15, No 3 (2026): May 2026
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61435/ijred.2026.62013

Abstract

Poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) is widely used as a hole-transport layer (HTL) in inverted perovskite solar cells (PSCs), but its acidity and moisture affinity can limit device performance. This study aimed to evaluate a circular-materials route by upcycling electric-arc-furnace (EAF) graphite-electrode waste into graphene oxide (GO) and applying GO-doped PEDOT:PSS as an HTL modifier, while identifying a practical low-temperature processing window for inverted PSCs under ambient conditions. Graphene oxide was synthesized from EAF graphite waste and dispersed in water (1 mg mL⁻¹), then blended with PEDOT:PSS at different loadings. Inverted PSCs with an ITO/GO-doped PEDOT:PSS/CH₃NH₃PbI₃₋ₓClₓ/PCBM/Ag architecture were fabricated in ambient laboratory air (25–27 °C; RH ≈ 40%) without a glovebox. The effects of GO loading and perovskite annealing temperature (70–130 °C) were evaluated using J–V measurements under AM1.5G illumination, supported by SEM and XRD analyses. Moderate GO addition was associated with improved film coverage and fewer pinholes, while XRD indicated better phase formation near 100 °C. In contrast, excessive annealing (≈130 °C) increased PbI₂ signatures and coincided with severe performance degradation. The optimum condition (600 µL GO per 1 mL PEDOT:PSS and 100 °C annealing) produced a champion power conversion efficiency of 0.80%, with VOC = 0.795 V, JSC = 3.48 mA cm⁻², and FF = 28.9%. Although the efficiency remained modest, the results demonstrated the feasibility of waste-derived GO as a functional PEDOT:PSS interfacial modifier and established a low-temperature processing window governing film integrity and degradation signatures in inverted PSCs, providing a basis for further optimization.
Co-Authors Afrilia, Rilva Amanda Febriliani Antarnusa, Ganesha Assaat, Lusiani Dewi Azzahra, Zalza Afni Fachruddin Perdana Fadli, Mohamad Gustiono, Vaka Hafith, Muhammad Halimatusa’diyah, Syifa Hartono, Rudi Jafar, Rafa Maharani, Rivia Meilani Meilani, Meilani Muhammad Iman Santoso Nurilmy, Novita Permana, Sandy Sania, Annidatus Sri Wahyuni Sulaeman Deni Ramdani Wati, Peradea Yayat Ruhiat Yulianti, Ria Retno