Candra Irawan

ORCID: 0000-0001-9870-6543
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About
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Research Areas
  • Phytochemicals and Antioxidant Activities
  • Medicinal Plant Research
  • Natural Antidiabetic Agents Studies
  • Computer Science and Engineering
  • Data Mining and Machine Learning Applications
  • Geotechnical and construction materials studies
  • Edcuational Technology Systems
  • Image Retrieval and Classification Techniques
  • Educational Methods and Media Use
  • Geotechnical Engineering and Soil Stabilization
  • Structural Behavior of Reinforced Concrete
  • Essential Oils and Antimicrobial Activity
  • Phytochemistry and Biological Activities
  • Natural Products and Applications
  • SMEs Development and Digital Marketing
  • Mangiferin and Mango Extracts
  • Tannin, Tannase and Anticancer Activities
  • Food and Agricultural Sciences
  • Blockchain Technology in Education and Learning
  • Innovative concrete reinforcement materials
  • Bee Products Chemical Analysis
  • Chaos-based Image/Signal Encryption
  • Heavy Metal Pollution Remediation
  • Information Retrieval and Data Mining
  • Analytical Chemistry and Chromatography

Universitas Dian Nuswantoro
2013-2025

University of Indonesia
2021-2025

IPB University
2017-2024

Sepuluh Nopember Institute of Technology
2015-2024

Universitas Gadjah Mada
2021-2024

University of Bengkulu
2021-2023

Universitas Islam Nusantara
2023

Universitas Balikpapan
2014-2020

Wayang is commonly used to tell epic stories of Mahabharata and Ramayana, as well local legends myths. There are various types wayang, such wayang kulit (made buffalo or goat leather), golek wood), klithik (combination leather wood). Although it indicates cultural richness, diversity also makes difficult for the general public identify character they seeing because each type has unique characteristics details. Recognizing characters a challenging task due their intricate designs subtle...

10.22219/kinetik.v10i1.2053 article EN Kinetik Game Technology Information System Computer Network Computing Electronics and Control 2025-01-22

In the digital era, ensuring customer satisfaction with IT services is crucial for business success. However, complexity of infrastructure makes it difficult to manage services, requiring companies focus on improving efficiency and reducing operational costs. One strategies used Information Technology Service Management (ITSM), main component which incident management, aims minimize service disruptions. While various studies ITSM exist, research focused Machine Learning models predicting...

10.33395/sinkron.v9i1.14310 article EN SinkrOn 2025-01-08

Background: Rhinachantus nasutus (L.) Kurz (Rnz) is a plant that has the potential to be an antioxidant as well anti-diabetic medication. Traditional medicine used preparations made from roots, stems, and leaves of Rnz treat diabetes. Aim: This study aimed determine leaf extract by inhibiting activity dipeptidyl peptidase IV (DPP IV). Method: samples were extracted using Ultrasound-Assisted Extraction (UAE). Following that, capacity was determined trapping 2,2-diphenyl-1-picrylhydrazyl...

10.52711/0974-360x.2025.00075 article EN Research Journal of Pharmacy and Technology 2025-02-27

Andrographis paniculata (Burm.f.) Wall (ApBW) is a climbing shrub with height of up to 2.5 meters and has potential as traditional medicine. The objective this investigation asses antioxidant Alpha Glucosidase Inhibitory (AGI) properties an antidiabetic agent chitosan nanoparticles (CtoNPl) from ApBW leaf extract by several variations. Y1 (0.5% Cto) variation using Particle Size Analyzer (PSA) revealed particle diameter 510 nm PDI figure 0.0478. After cross-linking, the wave number shifts...

10.62476/nmca.9184 article EN New Materials Compounds and Applications 2025-04-09

Sudoku is a digital game that included in the type of logic-based puzzle where goal to fill with random numbers. Therefore, this research it proposed use Artificial Intelligence which contains Depth First Search Algorithm track number possible solutions lead only one so becomes efficient. This has different levels difficulty such as easy, medium and difficult. The time complexity execution will vary depending on Android Studio software. experimental results prove there an increase playing...

10.62411/jais.v9i1.10017 article EN Journal of Applied Intelligent System 2025-04-21

Imperceptibility and security are the two most important things in StegoCrypt techniques. In this paper, we have proposed technique of inserting messages to edge image using Least Significant Bit (LSB) algorithm. The area is selected because human vision can't detect small changes area. To provide double protection messages, applied encryption one-time pad (OTP) strengthen result, message process not done directly but by converting it into binary first. This way can result more verbalized...

10.1109/icicos.2017.8276328 article EN 2017-11-01

Aims: The goal of this work was to get the stem extract Tinospora crispa (L.) using ultrasoundassisted extraction (UAE) with duration and amplitude changes achieve optimal conditions. antioxidant potential as measured by 2,2-diphenyl-1-picrylhydrazyl (DPPH), CUPRAC (Cupric Ion Reducing Antioxidant Capacity), FRAP (Ferric Ability Plasma), its antidiabetic potential. Results: third test methods showed that measurement activity with, DPPH, CUPRAC, gave significantly different results, but same...

10.5530/pj.2022.14.128 article EN Pharmacognosy Journal 2022-11-01

Background: "Julang-jaling" (Archidendron bubalinum (Jack) I.C Nielsen) fruits are commonly used as traditional food and in the treatment of blood sugar heart disease. However, research about phytochemicals parts this plants their bioactivity was rare. Objective: The recent study aimed to analyze volatile compounds extract "julang-jaling" husks evaluate antioxidant antimicrobial activities. Material methods: extraction conducted using n-hexane, ethyl acetate, methanol extracting agent....

10.5530/pj.2018.1.17 article EN cc-by Pharmacognosy Journal 2017-11-26

Background: Some Malaysia and Indonesia people believed that root seed shell of Archidendron bubalinum can treat diabetes. However, has not yet to be scientifically proven confirmed their ability The study the potential this was also scarcely available. Objective: recent work aimed investigate phytochemical screening methanol extracts shells evaluate chemical compositions antidiabetic activities. Material Methods: methods were including alkaloids, flavonoids, tannins, polyphenols, saponins,...

10.5530/pj.2018.6s.15 article EN cc-by Pharmacognosy Journal 2018-11-12

Lasem batik is one of traditional Indonesian's famous that has high artistic and economic value. can be classified into several different motifs. This study aims to analyze the number gray level co-occurrence matrix (GLCM) features during process classification image with K-Nearest Neighbor (KNN). KNN advantages in overcoming probability density, able consolidate calculations based on neighbors specified, perform limited parameters. Feature extraction important steps before performing...

10.1109/isriti.2018.8864443 article EN 2018 International Seminar on Research of Information Technology and Intelligent Systems (ISRITI) 2018-11-01

Aims: This study aims to obtain a stem bark extract of Rhinachantus nasutus (L.) Kurz through the application ultrasound-assisted extraction (UAE) and reveal: total phenolic content in extract; The extract's potential as an antioxidant with copper-reducing strength parameters, its antidiabetic by inhibiting alpha-glucosidase activity. Results: crude ethanol R. obtained from UAE process was 7.4896 g yield 4.99%. high content, namely 677.3343±0.0007 mg GAE / sample, activity test using CUPRAC...

10.5530/pj.2021.13.164 article EN Pharmacognosy Journal 2021-09-08

Plant extracts or their secondary metabolites have functioned as antioxidants in phytotherapy drugs which function protection against various diseases related to oxidative stress and free radicals. Free radicals play an important role the initiation development of diseases, one is uric acid. Hhis study aims obtain ethanolic extract from ripe fruit Musa balbisiana Colla using UAE method information about bioactivity anti-gout. The results showed that antioxidant activity test DPPH FRAP...

10.5530/pj.2021.13.168 article EN Pharmacognosy Journal 2021-11-13

In this paper, further analysis from the result of spun pile test under reverse flexural load and combined with two levels constant axial load, 40 tons (0.08fc’Ag) 80 (0.16fc’Ag), is presented. The related to confinement behavior concrete section using low amount spiral reinforcement. It shown that strain readings reinforcement indicate a subtle contribution in terms mechanism hollow pile. addition, it evident seems be compressed when resists compression due load. crushing at ultimate...

10.18517/ijaseit.8.2.4343 article EN cc-by-sa International Journal on Advanced Science Engineering and Information Technology 2018-03-31

Abstract The medical image is an that needs to be protected because it private and confidential. more modern technology enables tele surgery, diagnosis, others demand safe confidential images. This research proposes cryptography method in a by using the combination algorithm of Arnold chaotic map (ACM) Rivest Cipher 4 (RC4). ACM cryptographic technique superior attack deferential brute force. way works confuse pixel location. While RC4 stream cipher has resistance statistical attacks fasts...

10.1088/1742-6596/1201/1/012022 article EN Journal of Physics Conference Series 2019-05-01

In this study, Musa balbisiana Colla seeds were extracted using Ultrasonic Assisted Extraction method. it was found that extract of contained alkaloid, phenolic, saponin, tannin and steroid glycoside compounds by phytochemical test. Antioxidant activity determined 1,1-diphenyl-2- picrylhydrazil ferric reducing antioxidant power method while allopurinol used to determine non uric acid capacity extract. The total phenolic content 375mg/mg gallic acid. test carried out with the result in form...

10.52711/0974-360x.2023.00085 article EN Research Journal of Pharmacy and Technology 2023-02-28

Music recommendations are one of the important things, such as music streaming platforms. Classification genres is initial stages in process recommendation based on genre. Many classifications proposed by extracting audio features that require a not light computing process. This research aims to analyze and test performance genre classification metadata using three different classifiers, namely Support Vector Machine (SVM) with radial kernel base function (RBF), K Nearest Neighbors (K-NN),...

10.1109/isemantic50169.2020.9234199 article EN 2020 International Seminar on Application for Technology of Information and Communication (iSemantic) 2020-09-19

Matoa seed and rind as an antioxidant for humans need to be strengthened by research on the toxicity. One of toxicity tests is using Brine Shrimp Lethality Test (BSLT) method. The mortality value was determined a probit analysis determine Lethal Concentration (LC-50) solvent fractions ethyl acetate, methanol hexane. extract in hexane, acetate solvents were 153, 90 ppm, 141, 09 ppm 153.65 ppm. 109, 34 172, 98 139.41 respectively. All had bioactive compound which high because they have LC50...

10.13005/ojc/360618 article EN Oriental Journal Of Chemistry 2020-12-30

This research has investigated adsorption of Fe with using fly ash adsorbent . Phases is activated H CI after that the were characterized by XRF and SEM Determination optimum conditions on mass variations , in contact time Resulth show condition occurs 2.5 g for 60 minutes t he results also able to adsorp up 9 6,34 % Key words: adsorption, Abstrak Telah dilakukan penelitian adsorpsi logam dengan menggunakan adsorben abu layang Batubara. Tahapan yakni meng aktivasi b atubara HCI setelah itu...

10.32487/jtt.v3i2.89 article ID JTT (Jurnal Teknologi Terpadu) 2015-10-12

This research investigates the effect of presence infilling concrete inside middle void spun pile on its flexural behavior. The monotonic load without axial testing was conducted full-scale two piles with concrete. dimensions were 400 mm in diameter, 75 wall thickness, and 6,000 length. compressive strength 58.4 MPa 26.9 MPa, respectively. observed behaviors moment capacity, displacement ductility factor, failure modes. Comparing previous result about concrete, present results show that as...

10.11113/jt.v82.11974 article EN Jurnal Teknologi 2019-12-04

The SME sector in Indonesia comprises 99.99% of businesses, employing 96.9% the workforce and contributing 60.5% to GDP non-oil exports.Despite their importance, SMEs face challenges including limited financial access, product hygiene concerns, fluctuating demand.Accurate demand prediction is crucial for optimizing production, inventory, resource allocation.SARIMAX VAR models are commonly used prediction, with SARIMAX proving more effective, especially when integrating weather data.Due there...

10.18280/isi.290129 article EN cc-by Ingénierie des systèmes d information 2024-02-27

Research to find antioxidants and anti-gout has been done using black betel leaf. The sample was extracted at room temperature for 30 minutes the Ultrasound-Assisted Extraction (UAE) method, a yield of 8.47% obtained. Phytochemical screening carried out on ethanol extract leaves showed presence secondary metabolite compounds consisting alkaloids, phenolics, saponins, tannins, steroid glycosides, with total phenolic content 758,534±0.003mg GAE per gram sample. Antioxidant activity analysis...

10.52711/0974-360x.2024.00176 article EN Research Journal of Pharmacy and Technology 2024-03-31

Facial recognition technology has become increasingly crucial in various applications, from personal identification, security, and human-care. numerous practical ranging assessing mental health well-being through facial expressions to evaluating customer satisfaction service quality ratings. This study aims develop a model using Convolutional Neural Network (CNN) with FaceNet architecture. The proposed method utilizes an advanced deep learning approach generate high-quality embeddings,...

10.52465/joscex.v5i3.450 article EN Journal of Soft Computing Exploration 2024-09-22

Ginger, kencur, kunyit, temulawak, and temu hitam are herbs root that is widely used as a spice herbal medicine in Indonesia. Visually the shape color of quite similar so common people difficult distinguish. The problem can be solved with help Content-Based Image Retrieval (CBIR). There three main modules CBIR namely pre-processing, feature extraction identification. study proposed Color Histogram Gray Level Co-occurrence Matrix (GLCM) to identify these types remedies. While identification...

10.1109/isemantic.2018.8549779 article EN 2018 International Seminar on Application for Technology of Information and Communication 2018-09-01

The utilization of stone bananas is still very minimal, especially banana peels which will only end up as waste. Despite the fact that are a fruit high in metabolites, they have numerous health benefits.The (Musa balbisiana Colla) was extracted with ultrasound-assisted extraction to determine content secondary total fernol, antioxidant capacity using DPPH and FRAP methods, well potential for antigout activity extract. Ultrasound-assisted less expensive, simpler, more reliable alternative...

10.52711/0974-360x.2022.00127 article EN Research Journal of Pharmacy and Technology 2022-02-26
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