Journal Issue

Volume 13, Number 1




Index terms: AHP; Delphi; MCDM; Supplier selection; Supply chain
Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4700
Pages : 16-25

Index terms: Effect of customer’s smart factory investment; Industry 4.0; Technology adoption; Transformational leadership;

The Role of Leader and the Effect of Customer’s Smart Factory Investment on Firm’s Industry 4.0 Technology Adoption in Thailand

Kwanchanok Chumnumporn, Chawalit Jeenanunta, Suchinthara Simpan, Kornkanok Srivat, Vararat Sanprasert

Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4814
Pages : 26-37


Index terms: Centralization; Industry 4.0; Innovation capability management; Open innovation implementation (OII); Technology transfer evaluation process

Industry 4.0 for Thai SMEs: Implementing Open Innovation as Innovation Capability Management

Phaninee Naruetharadhol, Wutthiya A. Srisathan, Nathatenee Gebsombut, Peerapong Wongthahan, Chavis Ketkaew

Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4746
Pages : 48-57

Index terms: ANOVA; Machining process; Signal-to-noise; Surface roughness; Taguchi method

Dry Milling Machining: Optimization of Cutting Parameters Affecting Surface Roughness of Aluminum 6061 using the Taguchi Method

Shamsuddin Sulaiman, Mohammad Sh Alajmi, Wan Norizawati Wan Isahak, Muhammad Yusuf, Muhammad Sayuti

Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4208
Pages : 58-68

Index terms: Computer-Aided Design (CAD); Ergonomic transportation; House of quality (HOQ); Mobility of people with disabilities; Wheelchair, infrastructure for people with disabilities
Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4290
Pages : 69-79

Index terms: AI; Function; Functionality; Invention; Innovation; Value engineering
Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4984
Pages : 80-91

Index terms: Fatal accidents; Heterogeneous traffic; Machine learning; Segment-based effects; Speed standard deviation
Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4450
Pages : 92-102

Index terms: Concrete structures; Design concrete mixes; Uniaxial compressive strength (UCS); Ultrasonic pulse velocity (UPV); Ultrasound

Strength of Concrete through Ultrasonic Pulse Velocity and Uniaxial Compressive Strength

Daniel Melo Zárate, Fernando Cárdenas, Edwin Francisco Forero, Ferney Oswaldo Peña

Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4819
Pages : 103-114

Index terms: Design response spectral acceleration; MCER; N-SPT; Site coefficient; Straight-line interpolation

Site Coefficient and Design Spectral Acceleration Evaluation of New Indonesian 2019 Website Response Spectra

Windu Partono, Masyhur Irsyam, Ramli Nazir, Muhammad Asrurifak, Undayani Cita Sari

Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4132
Pages : 115-124

Index terms: Acrylic acid; Chitosan; Copolymer; Grafted; Mortar

The Effects of Modified Chitosan on the Physicomechanical Properties of Mortar

Lyazzat Bekbayeva, El-Sayed Negim, Rimma Niyazbekova , Zhanar Kaliyeva, Gulzhakhan Yeligbayeva, J. Khatib

Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4834
Pages : 125-135

Index terms: Battery; Forward osmosis; Geothermal brine; Lithium; Optimization

Forward Osmosis to Concentrate Lithium from Brine: The Effect of Operating Conditions (pH and Temperature)

Sutijan Sutijan, Satrio Wahyudi, Muhammad Fadlil Ismail, Pra Cipta Buana mustika, Widi Astuti, Agus Prasetya, Himawan Tri Bayu Murti Petrus

Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4371
Pages : 136-146

Index terms: Activated carbon; Chlorella sp.; HZSM-5; Liquid biofuel; Slow catalytic pyrolysis

Production of Liquid Biofuels from Microalgae Chlorella sp. via Catalytic Slow Pyrolysis

Bambang Sardi, Rifa Fatwa Ningrum, Vicky Azis Ardianyah, Lailatul Qadariyah, Mahfud Mahfud

Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4358
Pages : 147-156

Index terms: Coconut-shell-based charcoal; Few layers wrinkled graphene; High voltage plasma; Resonance inverter

Few-Layer Wrinkled Graphene (FLwG) Obtained from Coconut-Shell-Based Charcoal using a High-Voltage Plasma Method

Fri Murdiya, Yola Bertilsya Hendri, Amir Hamzah, Neni Frimayanti, Amun Amri

Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4572
Pages : 157-167

Index terms: Electrochemical Na insertion; Electrical properties; Sodium ion-battery; Sodium iron phosphate

Preparation of a NaFePO4 Cathode Material via Electrochemical Sodiation of FePO4 Layers on Al Substrates

Fitria Rahmawati, Dwi Aman Nur Romadhona, Desi Dyah Paramita, Witri Wahyu Lestari

Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4306
Pages : 168-178

Index terms: CFD; Combustion; Emission, Lambda; Syngas-diesel dual-fuel engine

Impact of Lambda Value on Combustion Characteristics and Emissions of Syngas-Diesel Dual-Fuel Engine

Hussein A. Mahmood, Ali O. Al-Sulttani, Naseer A. Mousa, Osam H. Attia

Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.5060
Pages : 179-189

Index terms: CFD; Deadrise; Floatplane; Porpoising; Take-off

Numerical Analysis of Floatplane Porpoising Instability in Calm Water During Takeoff

Muhammad Hafiz Nurwahyu Aliffrananda, Aries Sulisetyono, Yuda Apri Hermawan, Achmad Zubaydi

Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4903
Pages : 190-201

Index terms: Digital image processing; Real-time thickness measurement; Sheet metal spinning
Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.5025
Pages : 202-212

Index terms: Clustering; Game theory; Localization; RMSE; Wireless sensor networks
Publication Date (Online):
Jan 20, 2022
DOI: https://doi.org/10.14716/ijtech.v13i1.4850
Pages : 213-224