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All Journal International Journal of Electrical and Computer Engineering BERKALA FISIKA Jurnal Ilmu Dasar Jurnal Materi dan Pembelajaran Fisika Jurnal Sains dan Seni ITS Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Jurnal Forum Nuklir Jurnal Sains Materi Indonesia IPTEK The Journal of Engineering IPTEK Journal of Proceedings Series Jurnal Neutrino : jurnal fisika dan aplikasinya Jurnal Teknik Elektro JFA (Jurnal Fisika dan Aplikasinya) JURNAL INTEGRASI International Journal of Social Science and Business IJITEE (International Journal of Information Technology and Electrical Engineering) Indonesian Journal of Physics (IJP) Sewagati
Endarko Endarko
Departemen Fisika, Institut Teknologi Sepuluh Nopember, Surabaya 60111 Indonesia
Arts Humanities Astronomy Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Other

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Pemetaan Usaha Mikro Kecil dan Menengah Jawa Timur Menuju Sertifikasi Halal Tahun 2024 Nasori Nasori; Susilo Indrawati; Endarko Endarko; Mashuri Mashuri; Gontjang Prayitno; Agus Rubiyanto
Sewagati Vol 6 No 1 (2022)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (159.321 KB) | DOI: 10.12962/j26139960.v6i1.172

Abstract

Pendampingan Usaha Mikro Kecil dan Menengah (UMKM) dimulai dengan pemetaan produk dan sosialalisasi Sistem Jaminan Produk Halal (SJPH) tahun 2021 berdasarkan hasil produksi dalam kategori risk dan non-risk. Kegiatan ini adalah bagian kegiatan masyarakat untuk pendampingan akses sertifikasi halal bagi UMKM Jawa Timur serta dokumen yang perlu disiapkan dalam rangka sertifikasi halal UMKM. Dari 319 jumlah responden dari workshop Jaminan Halal yang diselenggarakan Dinas KUKM Jawa Timur 2021, 17 peserta merupakan pelaku UMKM bidang kerajinan dan usaha lain (toko kelontong) dan 302 peserta merupakan pelaku UMKM bidang industri makanan dan minuman. 35,1% peserta pelatihan belum memiliki izin usaha apapun, yakni sebanyak 112 peserta.
Pilot Project Pemanfaatan Sel Surya sebagai Pembangkit Listrik Alternatif untuk Rumah Tangga di Pulau Gili Iyang Sumenep Yoyok Cahyono; Nurul Amalia T; Masyitatus Daris S; Santi Puspitasari; Badri G.S; Heru Sukamto; Malik Anjelh Baqiya; Mochamad Zainuri; Endarko; Agus Purwanto; Triwikantoro; Suminar Pratapa; Suasmoro; Darminto
Sewagati Vol 2 No 1 (2018)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1097.573 KB)

Abstract

Kelompok Penelitian Material Sel Surya, merupakan bagian dari Kelompok Penelitian dan Laboratorium Bahan Maju, Departemen Fisika, FIA, ITS Surabaya, berusaha untuk berperan aktif, dan menjadi bagian yang tidak terpisahkan dari seluruh upaya dunia untuk mengatasi krisis energi dan pemanasan global, melalui penelitian dan pengembangan energi terbarukan, dan mensosialisasikannya ke masyarakat. Kegiatan pengabdian masyarakat di pulau Gili Iyang ini adalah bagian dari upaya itu, yaitu membantu meningkatkan kemandirian masyarakat pulau Gili Iyang dalam bidang energi listrik, dengan memanfaatkan energi terbarukan menggunakan teknologi sel surya. Dengan demikian, potensi masyarakat maupun sumber daya alam yang ada di pulau Gili Iyang yang belum termanfaatkan dengan baik dapat diberdayakan sehingga dapat meningkatkan produktivitas dan kemandirian energi masyarakat tersebut, dan tidak bergantung kepada energi konvensional. Untuk jangka pendek, perancangan teknologi tepat guna (sistem pembangkit / modul listrik sel surya), dan terbentuknya pilot project energi listrik berbasis sel surya telah tercapai dengan baik. Walaupun demikian, masih dibutuhkan pendampingan yang berkelanjutan, terutama mengenai perawatan (maintenance) dan perubahan kultur masyarakat.
Pelatihan Marine Tourism Branding Berbasiskan Kearifan Lokal untuk Pariwisata yang Inklusif di Desa Kabupaten Gresik, Jawa Timur Deti Rahmawati; Soedarso; Adi Suryani; Berto Mulia Wibowo; Akhmad Muklason; Endarko
Sewagati Vol 5 No 1 (2021)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (985.391 KB)

Abstract

Kondisi geo-oseanografis wilayah Indonesia sebagai negara kepulauan merupakan hal yang membuat Indonesia memiliki begitu banyak potensi sumber daya alam yang melimpah. Indonesia menduduki peringkat pertama negara kepulauan terbesar di dunia dengan garis pantai terpanjang di dunia yakni 54.716 km. Hal tersebut membuat pengembangan garis pantai menjadi salahsatu cara untuk pemanfatan pembangunan yang sesuai dengan geo-oseanografis Indonesia yakni kelautan. Paradigma pembangunan di Indonesia mulai bergeser dari pembangunan yang berorientasi darat menuju pembangunan yang berorientasi laut. Pemanfaatan ruang perairan pesisir dan pulau-pulau kecil harus dapat dikelola untuk kepentingan masyarakat luas. Terlebih marine tourism branding belum banyak di eksplorasi, sehingga pemanfataanya masih dirasa kurang optimal. Gagalnya menciptakan branding pada marine tourism akan berdampak signifikan bagi pemanfataan potensi pengelolaan sumberdaya alam yang ada, untuk itu penciptaan marine tourism branding perlu dipetakan untuk bisa mencapai hasil yang diinginkan. Untuk itu pengabdian kepada masyarakat ini bertujuan untuk menciptakan marine tourism branding WPP Dalegan, dengan bertumpu pada potensi yang ada untuk mencapai kemandirian desa.
Peningkatan Pendapatan UMKM di Kabupaten Lumajang melalui Pendampingan Kemasan dan Pemasaran Produk Soedarso; Christiono Utomo; Adi Suryani; Endarko; Imam Safawi Ahmad
Sewagati Vol 7 No 3 (2023)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2732.323 KB) | DOI: 10.12962/j26139960.v7i3.466

Abstract

Beberapa hal yang menjadi permasalahan dari tumbuhnya usaha mikro, kecil dan menengah (UMKM) adalah masalah terkait kemasan, branding, dan strategi pemasaran. Mayoritas UMKM hanya berfokus pada produksi tanpa memikirkan media kemasan yang menarik pelanggan, mempromosikan produk, dan cara memasarkan produknya secara lebih luas. Permasalahan ini juga ditemukan pada pelaku UMKM di Kabupaten Lumajang. Maka perlu dilaksanakan kegiatan pelatihan dan pendampingan bagi UMKM untuk membuat desain kemasan produk dan pemasaran produk. Pendampingan kepada UMKM ini diharapkan dapat meningkatkan penjualan produk UMKM. Desain kemasan produk yang menarik akan meningkatkan minat konsumen untuk membeli produk UMKM. Pemanfaatan media sosial sebagai media pemasaran akan meningkatkan jumlah konsumen. Peningkatan penjualan produk UMKM akan berkorelasi dengan meningkatnya pendapatan UMKM. Sehingga pelaku UMKM dapat menjadi pengusaha yang inovatif, memiliki nilai tambah, berdaya saing tinggi, memperluas lapangan pekerjaan, serta memperluas dan memperkuat relasi.
Vivaldi Tapered Slot Antenna for Microwave Imaging in Medical Applications Hakim, Randy Ivanal; Mahendra, Daffa; Endarko, Endarko
Jurnal Teknik Elektro Vol 15, No 2 (2023): Jurnal Teknik Elektro
Publisher : Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jte.v15i2.43955

Abstract

Microwave imaging has become an active research area in recent years, owing primarily to advancements in detecting the early stages of cancer. The study aimed to create a high-gain compact Vivaldi Tapered Slot antenna (VTSA) for microwave imaging in medical applications and also aims to address several challenges in the development of microwave imaging (MWI) technology for medical applications. These challenges include the ability to detect and identify abnormalities in human tissue and considering safe Specific Absorption Rate (SAR) limits for patients, the approach of balancing of penetration and resolution can be done on the design. The antenna operates at frequencies ranging from 1.7 to 3.1 GHz and is built on a low-cost Flame Retardant-4 (FR-4) substrate with a thickness of 1.6 mm. A compact exponential VTSA is initially presented while designing the proposed antenna for broad impedance bandwidth performances. The simulation used a back-to-back linear array of antennas with or without a phantom, specifically a without phantom (only antennas), a water phantom (cube shape), and an anomaly inside the water phantom. The results revealed a significant shift in the signal graph between the three results, indicating a difference in values between the three simulations. A transient domain solver calculation was used in the simulation. The designed antenna improved a gain of 6.09 dBi and a SAR of 0.326 W/kg by maximizing the edges of the exponential in the tapered section and the feedline slot area. The antenna exhibits differences in scattering parameters on each simulation of anomalies across the required frequency range. The result finds suitability of the experiment and simulation in assessing the microwave imaging capabilities. With the data presented, simulated antennas can be used for microwave imaging. The next study should aim on making a suitable imaging system with dimensions that supported in the antenna range and specifications.
Design of Antipodal Vivaldi Antenna for Medical Imaging Application Mahendra, Daffa; Hakim, Randy Ivanal; Endarko, Endarko
Jurnal Penelitian Fisika dan Aplikasinya (JPFA) Vol. 13 No. 2 (2023)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jpfa.v13n2.p132-145

Abstract

The microwave imaging (MWI) system in medical applications is commonly used to detect abnormalities in the human body. The purpose of this study was to design an Antipodal Vivaldi Antenna (AVA) for medical imaging applications using MWI. The research method used is based on the AVA design simulation of the CST Studio Suite 2019 application using time and frequency domain methods, which has dimensions of 60x40 mm2 with an antenna structure that works in the frequency range of 6.3-9.6 GHz, the impedance for bandwidth is -10 dB, using Flame Retardant-4 (FR-4) thickness 1.6 mm (= 4.3, tan ? = 0.025) as substrate material. A linear array of antennas was utilized in the simulation, either with or without a phantom. The phantom options include an absence of a phantom (only antennas), a cube-shaped water phantom, and a water phantom containing an anomaly. The result of the simulation on the AVA design produces a bandwidth of 41.61%, a gain of 5.16 dB, a return loss of -26.73 dB, a Specific Absorption Rate (SAR) value of 0.26 W/kg and a graph of S-parameters (S21). It can be concluded that the MWI system using the AVA design in this study has the potential to properly detect the presence of anomalies.
Evaluation Treatment Planning for Breast Cancer Based on Dose-Response Model Aisyah, Siti; Hariyanto, Aditya Prayugo; Endarko, Endarko; Rubiyanto, Agus; Nasori, Nasori; Haekal, Mohammad; Nainggolan, Andreas
Jurnal ILMU DASAR Vol 22 No 1 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v22i1.19732

Abstract

The delivery of radiation therapy to patients requires prior planning made by medical physicists to achieve radiotherapy goals. Radiotherapy has a plan to eradicate the growth of cancer cells by giving high doses and minimizing the radiation dose to normal tissue. Evaluation of planning is generally done based on dosimetric parameters, such as minimum dose, maximum dose, and means dose obtained from the DVHs data. Based on the same DVHs, data were evaluate dinterms of biological effects to determine the highest possible toxicity in normal tissue after the tumor had been treated with radiation using the NTCP model. The evaluation was conducted by selecting three DICOM-RT data of post-mastectomy right breast cancer patients who had been prescribed a dose of 50 Gy obtained from the Hospital MRCCC Siloam Semanggi database. All data were processed using open-source software DICOManTX to get the DVH and isodose information. Matlab-based CERR software was used to calculate the NTCP model. The results show that the three patients' DVH and isodose treatment planning result in a homogeneous dose distribution result because the PTV area obtains adose limit of ≥ 95%. Moreover, normalt issue still gets adose below the tolerance limit based on the standard from RTOG 1005 and ICRU 83. Analysis of NTCP shows a complication probability below 1% for each organ, suggesting that any organ which has been irradiated has a low likelihood of complications. Therefore, it can be concluded that the treatment planning which has been made in the three patients using the IMRT technique has achieved the objectives of radiotherapy, which is to minimize toxicity to healthy organs. |Keywords: DVH, isodose, NTCP, radiotherapy.
Experimental Study of TiO2 Nanoparticles Fabrication by Sol-gel and Co-precipitation Methods for TiO2/SnO2 Composite Thin Film as Photoanode Endarko, E.; Adawiyah, Siti Rabi’atul
Jurnal ILMU DASAR Vol 20 No 1 (2019)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (214.502 KB) | DOI: 10.19184/jid.v20i1.9154

Abstract

Sol-gel and coprecipitation methods successfully prepared titanium dioxide (TiO2) powders with anatase structure. The TiO2 powders are then used to fabricate pure TiO2 thin-film or mixed with SnO2 powders for the TiO2/SnO2 composite thin film. Furthermore, the structural, morphological, as well as the optical properties of films were also investigated. The results showed that the synthesized thin-film of TiO2 powders by sol-gel method obtained better crystallinity and microstructure compared to the synthesized thin film by co-precipitation method. In the DSSC system, these features are needed to increase the electron mobility that responsibility for transport and recombination of photoexcited electrons. SEM images exhibited the smooth surface and uniform in particle size obtained by the addition of SnO2 powders in composite films. The composite thin film also indicated a higher transmittance value. Keywords: sol-gel,co-precipitation,anatase, composite.
Electric Field Distribution Analysis of Blood Cancer as a Potential Blood Cancer Therapy Firdhaus, Miftakhul; Farahdina, Ulya; Zulfa, Vinda Zakiyatuz; Endarko, Endarko; Rubiyanto, Agus; Nasori, Nasori
Jurnal ILMU DASAR Vol 22 No 2 (2021)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v22i2.19784

Abstract

Blood cancer causes a significant increase in the concentration of Leukocytes, which can be broken down through dielectrophoresis and electrochemical procedures. Therefore, the electric field plays an important role in the migration of leukocytes to high voltage areas. This is because different electrode arrangements produce varying electric field distributions. Furthermore, this study applied finite element methods to generate electric fields when electrodes with an AC voltage were applied to blood placed in a chamber. Therefore, in this study, variations of mediums and electrode arrangements were investigated, which led to the recommendation of 3 models. The objective was to investigate electrode arrangements that produce optimal electric field distribution for the three models to exhibit a booster of electric field distribution. The maximum electric field is generated close to the electrode (Z=2 mm and Z=92 mm) for any material (i.e. normal blood, B lymphocyte, and T lymphocyte) with values of 22.6 V/m and 23.47 V/m, 22.85 V/m and 22.97 V/m, and 24.88 V/m and 25.01 V/m. Based on principle, lymphocytes in the blood result in positive dielectrophoresis, since they migrate to a higher electric field close to the electrode, with enough input voltage to turn the electrochemical process on the leukocytes into electric current. Furthermore, this study provides new perspectives and ideas, which have not been revealed in previous studies on blood cancer therapy using the electric field of Ag electrode in blood cancer distribution.Keywords: blood cancer, dielectrophoresis, electric field, voltage, electrochemical, and cancer therapy.
The Effect of Pattern and Infill Percentage in 3D Printer for Phantom Radiation Applications Hariyanto, Aditya Prayugo; Christianti, Kurnia Hastu; Rubiyanto, Agus; Nasori, Nasori; Haekal, Mohammad; Endarko, Endarko
Jurnal ILMU DASAR Vol 23 No 2 (2022)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jid.v23i2.27256

Abstract

3D printing technology was capable of fabricating phantoms to enhance quality assurance in radiation therapy. The ideal phantom has properties equivalent to the real tissue. However, 3D Printing has the limits to mimicking the attenuation properties of various tissues because during 3D printing there can be only one type of material. The purpose of this study was to evaluate the effect of infill percentage and infill patterns of 3D printing technology to simulate various types of tissue. This study used 25 samples measuring 5 × 5 × 1 cm3 from PETG material. The 20 samples were printed using variations infill percentages from 5 - 100% and the infill pattern in lines. The five samples were then printed with the infill percentage constant at 50% and used the infill pattern triangles, grid, gyroid, octet, and concentric. We used Computed Tomography (CT) to determine the Hounsfield Unit (HU) value for each sample and evaluated the suitability of each sample for phantom applications in radiation therapy and radiology. However, none of the samples was able to simulate compact bone. As a result, we found that PETG material could simulate the properties of soft tissue, fat, lung, kidney, liver, pancreas, and spongy bone. Thus, the study had shown promising potential for the fabrication of the anthropomorphic phantom of radiation therapy.
Co-Authors Achmad Muklason Adawiyah, Siti Rabi’atul Adi Suryani Adi Suryani, Adi Adi Wardana Agus Purwanto Agus Purwanto Agus Rubiyanto Ahmad Muklason Ahmad Ridlo Hanifudin Tahier Aini, Urifa Nabihal Akbar Sujiwa Akhmad Jufriadi Akhmad Muklason Akhmad Muklason Annisa, Hayfa Arfan Eko Fahrudin Ari Bangkit Sanjaya Umbu Aris Widodo Ayu Jati Puspitasari Ayu Jati Puspitasari Badri G.S Berto Mulia Wibawa Berto Mulia Wibowo Bintoro Anang Subagyo Cahyono, Yoyok Christianti, Kurnia Hastu Christiono Utomo Darminto Darminto Darminto Darsono Darsono Diani Ainun Nisa Djuli Pontjowijono Dzulfikar, Ahmad Zaki Eli Zahrotin, Eli Ellys Kumala Pramartaningthyas Fajar, M N Farahdina, Ulya Farid Afandy, Farid Fatimah, Iim Firdhaus, Miftakhul Gani, Muhammad Roslan Abdul Gatut Yudoyono Gontjang Prayitno Hadi Santoso Haekal, Mohammad Hakim, Randy Ivanal Hariyanto, Aditya Prayugo Hariyanto, Aditya Prayugo Hena Dian Ayu Ikfina Himmaty Imam Safawi Ahmad, Imam Safawi intan permata sari Khambali, Khambali Khusnul Ain Kurriawan Budi Pranata Kurriawan Budi Pranata, Kurriawan Budi Maharani, Diska Mahendra Satria Hadiningrat Mahendra, Daffa Malik Anjelh Baqiya Mario, Aloysious Mashuri Mashuri Masyitatus Daris S Maylita Martani Maylita Martani Melania S Muntini Miftahuddin, Dafa Miftakhul Firdhaus Moh. Roni Hidayat Mohammad Haekal Muhammad Noer Fajar Muthmainnah, Melania Suweni Muntini Nainggolan, Andreas Nasori, Nasori Novi D. Ariyanti Nuning Armawati Nur Ichzan Aminuddin Siantang Nurrisma Puspitasari Nurul Amalia T Nurul Amalia Triyuliana Nuzula, Nike Ika Pramartaningthyas, Ellys Kumala Prayitno, Audiena Gelung Putro, Triswantoro R Hidayat Rahmawati, Deti Rahmawati, Deti Rizqa Daniyati S Suasmoro, dkk Santi Puspitasari Setiawan Siti Aisyah Siti Rabiatul Adawiyah Siti Zahrok Soedarso Soedarso Soedarso Soedarso Soedarso Soedarso Soedarso Soedarso Soedarso, Soedarso Suasmoro Suasmoro Sukamto, Heru Sulistyanto, Muhammad Priyono Tri Suminar Pratapa Susilo Indrawati Sutikno Triswantoro Putro Triswantoro Putro Triwikantoro Triwikantoro Ulya Farahdina Vicran Zharvan Vinda Zakiyatuz Zulfa Wardana, Humadillah Kurniadi Wardhana, Adhitya Aris Yugo Triawanto Zainuri (DOI: 10.12962/j24604682.v12i2.1331), Mochamad Zaki Suud Zulfa, Vinda Zakiyatuz