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All Journal Transmisi: Jurnal Ilmiah Teknik Elektro Jurnal Masyarakat Informatika Industrial Engineering Online Journal The Journal of Pure and Applied Chemistry Research JAIS (Journal of Applied Intelligent System) Sinkron : Jurnal dan Penelitian Teknik Informatika JST ( Jurnal Sains Terapan ) JTT (Jurnal Teknologi Terpadu) Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Jurnal Teknologi Sistem Informasi dan Aplikasi JSHP (Jurnal Sosial Humaniora dan Pendidikan) Jurnal Akuntansi Kompetif Infotekmesin Seminar Nasional Teknologi Informasi Komunikasi dan Administrasi [SEMINASTIKA] Abdimasku : Jurnal Pengabdian Masyarakat Journal of Soft Computing Exploration Jurnal Politica Dinamika Masalah Politik Dalam Negeri dan Hubungan Internasional Warta AKAB Jurnal Akuntansi, Manajemen, Bisnis dan Teknologi Industrial Research Workshop and National Seminar Nusantara Civil Engineering Journal All Fields of Science Journal Liaison Academia and Sosiety Jurnal Ilmiah Sultan Agung JPM-AKA Journal Integration of Social Studies and Business Development Social Science Academic Jurnal Informatika Polinema (JIP) Jurnal Informatika: Jurnal Pengembangan IT Journal of English Education Assoeltan: Indonesian Journal of Community Research and Engagement Beujroh : Jurnal Pemberdayaan dan Pengabdian pada Masyarakat KANGMAS: Karya Scientific Community Service is a journal Spektrum Industri Jurnal Pendidikan Ilmu Pengetahuan Alam Jurnal Pendidikan Ilmu Pengetahuan Alam
Candra Irawan
Politeknik Negeri Balikpapan
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Adsorption of Iron by Fly Ash Adsorbent of Coal Irawan, Candra; Atikah, Atikah; Rumhayati, Barlah
The Journal of Pure and Applied Chemistry Research Vol. 3 No. 3 (2014)
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (518.667 KB) | DOI: 10.21776/ub.jpacr.%y.03.03.154

Abstract

This research has investigated adsorption of Fe with using fly ash adsorbent. Phases of adsorption of Fe isactivatedwithH2SO4afterthat thefly ashwere characterizedby usingXRF, FTIRandSEM. Determination ofoptimum conditionsonthe adsorptionof Fewithadsorbentmassvariations, variations incontact time, pHvariationandvariationconcentration andadsorptionisothermstudy. Resulth showthat theadsorptionof Fein optimum conditionoccurs inadsorbentmass of2.5g, for 60minutescontact timewithpH4at a concentration of20ppm. The results alsoable toadsorpup to94% Fe. The adsorption of Fe with using fly ashadsorbentwas more fitted to theLangmuirmodel than to Freundlich model <w:LsdException Locked="false" Priority=
Pendampingan Penyediaan Gambar Rencana Bangunan Bagi Masyarakat Sebagai Persyaratan Persetujuan Bangunan Gedung Ulfa, Anis Aulia; Irawan, Candra; Huda, Masrul
KANGMAS: Karya Ilmiah Pengabdian Masyarakat Vol 5 No 3 (2024): KANGMAS: Karya Ilmiah untuk Pengabdian Masyarakat
Publisher : Neolectura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37010/kangmas.v5i3.1774

Abstract

Kegiatan ini dilaksanakan untuk melakukan pendampingan kegiatan perencanaan perumahan warga graha indah, Kecamatan Balikpapan Utara, Kota Balikapapan. fasilitas layanan yang diberikan adalah pendampingan pembuatan gambar teknis dan pengajuan PBG. Dengan desain yang baik secara arsitektural, diharapkan mampu memenuhi persyaratan bangunan gedung. Pelaksanaan kegiatan ini dilakukan dalam beberapa tahapan, yaitu studi lapangan proses desain grafis dan visualisasi. Survei lapangan digunakan untuk mengumpulkan data situs, seperti mengukur luas situs dan menganalisis kondisi yang ada. Hasil pengukuran tersebut menjadi awal dari proses perencanaan dasar, yang kemudian berlanjut ke desain ruang pertemuan berupa visualisasi dan perhitungan struktur bangunan.. Hasil dari pelaksanaan kegiatan ini adalah : (1) telah diperbantukan dalam proses perencanaan desain bangunan, Kecamatan Balikpapan Utara, Kota Balikpapan; (2) penyusunan rencana anggaran biaya pelaksanaan pembangunan dan perhitungan struktur bangunan Lamin; (3) dari hasil perencanaan ini akan ditindaklanjuti sebagai Artikel koran daerah yaitu desain yang kontekstual dengan lingkungannya.
An Ensemble Learning Layer for Wayang Recognition using CNN-based ResNet-50 and LSTM Irawan, Candra; Rachmawanto, Eko Hari; Hadi, Heru Pramono
Kinetik: Game Technology, Information System, Computer Network, Computing, Electronics, and Control Vol. 10, No. 1, February 2025
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/kinetik.v10i1.2053

Abstract

Wayang is commonly used to tell epic stories of Mahabharata and Ramayana, as well as local legends and myths. There are various types of wayang, such as wayang kulit (made of buffalo or goat leather), wayang golek (made of wood), and wayang klithik (combination of leather and wood). Although it indicates cultural richness, such diversity also makes it difficult for the general public to identify the character of wayang they are seeing because each type has unique characteristics and details. Recognizing   wayang characters is a challenging task due to their intricate designs and subtle variations. This research addresses this problem by leveraging machine learning technology, specifically CNN-based classification methods, to accurately identify wayang characters. This study proposed a novel method that integrates ResNet-50 transfer learning with LSTM, enhancing the model's ability to capture both spatial and sequential features of wayang images. The proposed model achieved an impressive accuracy of 97.92%, with precision, recall, and F1-scores all reaching 100%. Despite the extended training time of 188 minutes and 21 seconds, the results demonstrate the model's superior performance. This advancement can significantly aid in the preservation and educational dissemination of Indonesian cultural heritage. Future research can focus on optimizing the training process to reduce the time while maintaining or even improving the accuracy, potentially expanding the model's application scope and effectiveness.
Pelatihan Pembukuan Pengusaha UMKM Perdagangan Ban : Bookkeeping Training for UMKM Tire Trading Entrepreneurs Irawan, Candra
Assoeltan: Indonesian Journal of Community Research and Engagement Vol. 3 No. 1 (2025): Assoeltan: Indonesian Journal of Community Research and Engagement
Publisher : Edujavare Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70610/assoeltan.v3i1.765

Abstract

MSMEs in the tire trading sector play an important role in the local automotive industry, but often face obstacles in preparing accurate financial reports due to limited accounting knowledge. This causes difficulties in monitoring cash flow, measuring profitability, and accessing funding sources. Therefore, this community service aims to improve the understanding and skills of MSME actors in preparing simple financial reports through bookkeeping training. The method used is Participation Action Research (PAR) with a participatory approach involving lectures, interactive discussions, and direct assistance. This training includes material on the importance of financial reports, how to record daily transactions, and the preparation of balance sheets and profit and loss statements. The results of the community service show that participants experienced an increase in understanding in recording transactions systematically and structured, were able to separate personal and business finances, and prepare more accurate simple financial reports. However, there are still some weaknesses such as limited mentoring time and low understanding of accounting terms. In conclusion, this training is effective in improving the financial literacy of MSME tire trading actors, but more intensive mentoring and utilization of financial recording technology are needed to achieve more optimal results.
Clustering and Profiling Analysis for FIFA Football Player using K-Means Azzami, Salman Yuris Adila; Hadi, Heru Pramono; Alzami, Farrikh; Irawan, Candra; Nurhindarto, Aris; Sulistyono, MY Teguh
Jurnal Informatika: Jurnal Pengembangan IT Vol 10, No 1 (2025)
Publisher : Politeknik Harapan Bersama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/jpit.v10i1.7897

Abstract

The selection of football players is a complex process involving talent evaluation based on various performance indicators, combining objective measures with subjective assessments by coaches and scouts. This research aims to improve the football player selection process using the K-Means clustering method based on the attributes of transfer price, performance, body specifications, position, and player ability. The dataset used consists of 17.947 players taken from the FIFA 19 edition of the soFIFA.com platform, which includes complete information such as transfer price, performance, body specifications, position, and player ability. The data was processed using principal component analysis (PCA) to reduce the dimensions, followed by the Elbow Method to determine the optimal number of clusters. The clustering results show the distribution of players based on their on-field roles, such as center back, goalkeeper, striker, and left wing back. The profiling of players from each cluster is identified based on position, body type, dominant foot usage, transfer price, and rating. This research provides useful insights for coaches and scouts in selecting players that suit specific roles in the team using better analysis. The findings also highlight the importance of player clustering for data-driven decision-making, which can optimize team composition and overall performance.
Formulating Character Development Policy in Vocational Higher Education: A Qualitative Study and the V-CODE Model Andrianto, Tomy; Susanto, Eko; Syukri, Muhammad Yazidus; Sulistiana, Oktavera; Irawan, Candra
Journal Integration of Social Studies and Business Development Vol. 3 No. 1 (2025)
Publisher : Integrasi Sains Media

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58229/jissbd.v3i1.321

Abstract

This study investigates the formulation and implementation of character development policies in vocational higher education institutions in Indonesia. Using a qualitative design, data were collected through panel surveys involving key stakeholders at multiple institutional levels, including lecturers, department heads, and vice directors. The study explores stakeholders' perceptions regarding the urgency of character education, the values to be instilled, implementation strategies, challenges, and evaluation mechanisms. Findings reveal a strong consensus on the importance of integrating character development into the core curriculum, yet also highlight critical challenges such as fragmented policy implementation, limited faculty capacity, and inadequate evaluation systems. National regulations are recognized as valuable frameworks, but their operationalization at the institutional level remains inconsistent. To address these gaps, the study introduces the V-CODE Model (Vocational Character-Oriented Development & Evaluation), a conceptual framework comprising five interconnected components: driving factors, stakeholder involvement, policy formulation, implementation strategies, and evaluation mechanisms. The model emphasizes participatory policy design, curriculum-wide integration, and feedback loops reinforcing continuous improvement. This research contributes to theory and practice by offering a contextually grounded model to guide vocational institutions in building sustainable and impactful character education systems. The study also provides policy recommendations for aligning institutional practices with national education goals and labor market expectations.
PENERAPAN AKUNTANSI SAK EMKM DALAM PENYUSUNAN LAPORAN KEUANGAN UMKM DI KOTA PEKANBARU Nuraini, Nuraini; Piliang, Arfah; Alqorni, Nisa; Irawan, Candra; Rasmon, Rasmon
Jurnal Akuntansi Kompetif Vol. 8 No. 1 (2025): Kinerja Keuangan, Akuntabilitas, dan Digitalisasi Laporan pada Sektor Publik da
Publisher : Komunitas Manajemen Kompetitif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35446/akuntansikompetif.v8i1.2001

Abstract

The purpose of this study is to find out whether MSMEs in Binawidya District, Pekanbaru City have implemented SAK EMKM in compiling financial statements. The researcher used purposive sampling in obtaining research samples. Where the informants involved in this study are MSME owners/managers consisting of 35 business actors. Data collection was carried out by interview and documentation techniques. The result of this study is that the MSMEs studied have not implemented SAK EMKM in the preparation of financial statements. MSME actors only make business activity reports consisting of recording income and expenses in accordance with the understanding of each MSME owner.
Analisis Pengaruh Konflik Peran Terhadap Stres Kerja pada PT. Indomarco Prismatama Cabang Medan Irawan, Candra; Tumanggor, Mutawaqil Bilah; Rajali, Muhammad
All Fields of Science Journal Liaison Academia and Sosiety Vol 1, No 4: Desember 2021
Publisher : Lembaga Komunikasi dan Informasi Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58939/afosj-las.v1i4.131

Abstract

Tujuan penelitian ini adalah untuk mengetahui adakah pengaruh konflik peran terhadap stress kerja pada PT. Indomarco Prismatam Cabang Medan. Desain penelitian menggunakan metode penelitian kuantitatif. Teknik pengambilan sampel pada umumnya dilakukan secara random, pengumpulan data menggunakan instrumen penelitian, analisis data bersifat kuantitatif atau statistik dengan tujuan untuk menguji hipotesis yang telah ditetapkan. Dalam penelitian ini yang menjadi populasi adalah karyawan PT. Indomarco Prismatama Medan yang berjumlah 92. Adapun teknik pengumpulan data yang dipergunakan penulis melalui penyebaran kuesioner. Analisis data yang digunakan dalam penelitian ini adalah menganalisis data kuantitatif yang terdiri dari uji validitas, uji reliabilitas, uji asumsiklasik, regresi berganda dan uji hipotesis dengan bantuan program SPSS. Dari tabel regresi dapat dilihat besarnya thitung ttabel (6.606 1,68), maka konflik peran menunjukkan angka 0,05 (0,000 0,05), maka Ha diterima dan H0 ditolak, artinya konflik peran berpengaruh signifikan terhadap stress kerja karyawan.
PENGARUH UKURAN AGREGAT TERHADAP KUAT TEKAN DAN PERMEABILITAS PAVING BLOCK POROUS Irawan, Candra; Debi, Yoga Tegar Ardi; Mudiyono, Rachmat; Adi, Henny Pratiwi
Jurnal Ilmiah Penelitian Mahasiswa Vol 2, No 2 (2023): September 2023
Publisher : Jurnal Ilmiah Sultan Agung

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

Abstract

Musim penghujan dapat menyebabkan genangan air pada permukaan jalan. Genangan airterbentuk karena berkurangnya daerah resapan air akibat penggunaan perkerasan yang kedapair. Genangan air dapat merusak lapisan perkerasan. Peneliti melakukan penelitian mengenaipaving block porous untuk mengatasi permasalahan tersebut. Paving block porous dibuat agarperkerasan jalan memiliki kuat tekan dan permeabilitas yang sama-sama tinggi, padapenelitian ini peneliti menganalisa pengaruh ukuran agregat kasar terhadap kuat tekan danpermeabilitas paving block porous.Penelitian ini membuat benda uji dengan komposisi untuk paving block menggunakansemen, pasir dan abu batu dengan perbandingan 1:1,5:1,5. Benda uji yang dibuat berbentuksegi enam dengan panjang sisi 11,5 cm dan tebal 6 cm, pada bagian tengah benda uji diberiruang berbentuk silinder dengan diameter 2 inch untuk diisi menggunakan beton porous. Betonporous yang dibuat menggunakan 4 variasi ukuran agregat kasar, variasi 1 dengan agregatkasar lolos saringan ½ inci tertahan saringan ¼ inci; variasi 2 dengan agregat kasar lolossaringan ¾ inci tertahan saringan ½ inci; variasi 3 dengan agregat kasar lolos saringan 1 incitertahan saringan ¾ inci; variasi 4 dengan ukuran agregat campuran dari 3 variasisebelumnya. Setelah benda uji dibuat, dilakukan perawatan tiap 3 hari sekali denganmenyirami benda uji menggunakan air. Setelah benda uji berumur 7 hari dilakukan pengujiankuat tekan dan uji permeabilitas untuk mengetahui pengaruh dari penggunaan ukuran agregat.Hasil penelitian ini didapatkan kuat tekan tertinggi pada variasi 4 dengan nilai 22,94 MPa.Ukuran agregat yang digunakan pada variasi ini memungkinkan rongga udara pada benda ujimenjadi lebih kecil sehingga meningkatkan kuat tekannya. Nilai permeabilitas minimal yangditetapkan ACI 522R-10 adalah 0,22 cm/s dengan nilai maksimal adalah 1,22 cm/s. Padapengujian permeabilitas hanya variasi 3 dan 4 yang memenuhi syarat minimum dari ACI 522R-10 dengan nilai 0,23 cm/s dan 0,24 cm/sKata Kunci: paving blok; porous; kuat tekan; permeabilitas; agregat
Performance Analysis Cryptography Using AES-128 and Key Encryption Based on MD5 Pratama, Reza Arista; Rachmawanto, Eko Hari; Irawan, Candra; Erawan, Lalang; Laksana, Deddy Award Widya; Ali, Rabei Raad
Jurnal Masyarakat Informatika Vol 16, No 2 (2025): Issue in Progress
Publisher : Department of Informatics, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jmasif.16.2.75091

Abstract

The rampant misuse of data theft has created data security techniques in cryptography. Cryptography has several algorithms that are very strong and difficult to crack, including the AES (Advanced Encryption Standard) algorithm consisting of 128 bits, 192 bits, and 256 bits which have been proven resistant to conventional linear analysis attacks and differential attacks, then there is the MD-5 algorithm (Message-Digest algorithm 5) which is a one-way hash function by changing data with a long size and inserting certain data in it to be recovered. If the two are combined, it becomes more difficult to crack; therefore, to determine its performance, this study conducted a combination experiment of AES-128 with a key encrypted by MD-5, including avalanche effect tests, encryption and decryption execution times, and entropy values of encryption. The types of documents for testing are files with the extensions .docx, .txt, .pptx, .pdf, and .xlsx. After conducting tests on document files obtained from the processing time test, it shows that .txt and .pptx documents dominate with a fast process, while the longest process is obtained by .xlsx and .docx documents for all test files, then the avalanche effect test with an average of 98% and the entropy test is classified as good between values 3 - 7 which are close to value 8. This proves that the combination of the AES-128 algorithm with the MD-5 key can be used as an alternative for securing documents with stronger security, while maintaining standard processing times
Co-Authors Abu Salam Agus Winarno, Agus Agustina, Feri Akbar, Ilham Januar Al-Ghiffary, Maulana Malik Ibrahim Alfany, Fauzan Maulana Alhafish, Muhammad Radhi Ali, Rabei Raad Almidawati ALQORNI, NISA Alzami, Farrikh Angow, Delicia Award Widya Laksana, Deddy Azhar, Kheiza Noor Aulia Aziz, Fuad Abdul Azzahra, Faradhina Azzami, Salman Yuris Adila Barlah Rumhayati Basri Dahlan Bima, Aristides Bimo Seto, Kahfi Akmal Janitra Cahaya Jatmoko Cahyo, Nur Ryan Dwi Caturkusuma, Resha Meiranadi Christy Atika Sari Debi, Yoga Tegar Ardi Dedy Pratama Diana Aqmala Edi Sugiarto Eko Hari Rachmawanto Eko Susanto Eni Sumanti Nasution Enriyani, Riri Fahmi Amiq Farida Farida Fikri Budiman Firmansyah, Aksal Fitri, Rahma Hadi, Heru Pramono Hari Purnama, Hari Hasbi, Hanif Maulana Henny Pratiwi Adi Heru Lestiawan Hilmansyah Huda, Masrul Ifan Rizqa Ika Novita Dewi Inzaghi, Reza Bayu Ahmad Irpan Kusyadi Isinkaye, Folasade Olubusola Jonnedi, Jonnedi Kango, Riklan Krismawan, Andi Danang Kusumawati, Yupie Laksana, Deddy Award Widya Lalang Erawan Lili Romli, Lili Lisandi, Anisa Marendra, Fajar Mariatul Kiptiah Menhard, Menhard Monica, Lala Munawaroh Munawaroh Muslih Muslih MY. Teguh Sulistyono Nawang Retno Ningrum, Amanda Prawita Nohan, Rejendra Novi Hendriyanto, Novi Nugraha, Dida Septiya Nuraini Nuraini Nurhindarto, Aris Oryzanti, Parwa Piliang, Arfah Pramudya, Muhammad Kemal Caesar Aqidah Pratama, Reza Arista Purnomo, Hari Agus Putri, Ade Aisyah Arifna Putri, Imalia Dwi Rachmat Mudiyono, Rachmat Rahmatia, Lintannisa Rajali, Muhammad Ramadhan Rakhmat Sani Randy Pradityo Rasmon Ratna Purwaningsih Rosalina Rosalina Rosalina RR. Ella Evrita Hestiandari Saputra, Randika Septian, Wira Aditia Sidhiq, Restu Fajar Simatupang, Lisnawaty Sinaga, Bunga Riama Sinaga, Daurat Solichul Huda, Solichul Sri Hartini Sri Utami Kholilla Mora Siregar Suharnawi Suharnawi Suhartini Suhartini Sukiman, Maman Sulistiana, Oktavera Sulistiyono, MY Teguh suprayogi Supriatiningsih, Supriatiningsih Sutarni, Yayan Dwi Syukri, Muhammad Yazidus Tomy Andrianto Tumanggor, Mutawaqil Bilah Ulfa, Anis Aulia Umah Nur, Raisul Utami, Andita Wibowo, Isro' Rizky Widharto, Yusuf Widya Rahmawati WIRDAYANI WAHAB, WIRDAYANI Yudi Prana Hikmat Yulita, Rahma Zaenal Arifin Zubir, Zubir