Research Articles – Page 8 – Asia-Pacific Journal of Science and Technology (APST)

Vol. 25 No. 04 (2020): OCT-DEC

A DFT study of C, SiC, Si, and SiGe colloidal quantum dots for bioimaging

Ruhan Thirayatorn Department of Physics, KhonKaen University, Khon Kaen, Thailand Pornsawan Sikam NANOTEC, National Science and Technology Development Agency (NSTDA),Pathum Thani, Thailand Pairot Moontragoon Department of Physics, KhonKaen University, Khon Kaen, Thailand Zoran Ikonic School of Electronic and Electrical Engineering, University of Leeds, Leeds, United Kingdom DOI: https://doi.org/10.14456/apst.2020.34 Keywords: C colloidal quantum dots Si colloidal […]

Vol. 25 No. 04 (2020): OCT-DEC

Experimental investigation on the carbide precipitation and mechanical property evolution of a cryogenically treated tool steel

Thee Chowwanonthapunya Faculty of International Maritime Studies, Kasetsart University, Chonburi, Thailand Chaiyawat Peeratatsuwan Faculty of Engineering and Architecture, Rajamangala University of Technology Isan, Nakhonratchasima, Thailand DOI: https://doi.org/10.14456/apst.2020.33 Keywords: cryogenic treatment, SKD 11 tool steel, carbide precipitation, mechanical properties Abstract In this present paper, the evolution of the carbide precipitation, hardness and impact energy of semi […]

Vol. 26 No. 04 (2021): OCT-DEC

Developing a web application to provide information on common work-related asthma causative agents

Nut Sangjumrus Division of Occupational Medicine, Department of Community Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand Naesinee Chaiear Division of Occupational Medicine, Department of Community Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand Kanda Saikaew Department of Computer Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand Apichart So-ngern […]

Vol. 25 No. 04 (2020): OCT-DEC

A structure equation model of total quality management and innovation capability affecting organisational performance

Sarinya Sirisan Department of Industrial Engineering, Faculty of Engineering, Ubon Ratchathani University, UbonRatchathani, Thailand Nalin Pianthong Department of Industrial Engineering, Faculty of Engineering, Ubon Ratchathani University, UbonRatchathani, Thailand Monika K. Olejnik Faculty of Engineering Management, PoznańUniversity of Technology, Poznań, Poland DOI: https://doi.org/10.14456/apst.2020.32 Keywords: Total quality management Innovation capability Organizational performance Structure equationmodel Abstract The relationship […]

Vol. 26 No. 04 (2021): OCT-DEC

Volatility linkages among the returns of oil, gold, and stock market: Evidence from Thailand

Parichat Sinlapates Faculty of Business Administration and Accountancy, Khon Kaen University, Khon Kaen, Thailand Nattawadee Romklang Faculty of Economics, Khon Kaen University, Khon Kaen, Thailand Surachai Chancharat Faculty of Business Administration and Accountancy, Khon Kaen University, Khon Kaen, Thailand DOI: https://doi.org/10.14456/apst.2021.41 Keywords: Oil Gold Stock Volatility spillover BEKK-GARCH Thailand Abstract This paper examines the return […]

Vol. 25 No. 04 (2020): OCT-DEC

Evaluation on the bean qualities of cocoa clones after propagated from somatic embryogenesis culture

Gibson Entuni Faculty of Resource Science and Technology,Universiti Malaysia Sarawak, Kota Samarahan, Sarawak,Malaysia Hollena Nori Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia Rebicca Edward Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia Ahmad Kamil B Mohammad Jaafar Malaysian Cocoa Board, Cocoa Research and Development […]

Vol. 26 No. 04 (2021): OCT-DEC

Ethanol and beta-glucan production from an economically feasible medium prepared from paper napkin hydrolysate

Raksmey Thin Department of Biotechnology, Faculty of Technology, Khon Kaen University, Khon Kaen, Thailand Atiya Techaparin Department of Biotechnology, Faculty of Technology, Khon Kaen University, Khon Kaen, Thailand Preekamol Klanrit Fermentation Research Center for Value-added Agricultural products, Faculty of Technology, Khon Kaen University, Thailand Poramaporn Klanrit Research Group of Chronic Inflammatory Oral Diseases and Systemic […]

Vol. 25 No. 03 (2020): JUL-SEP

In vitro antioxidant, alpha-glucosidase inhibition and antibacterial properties of Turbinaria decurrens Bory (Sargassaceae, Ochrophyta)

Eldrin Arguelles Philippine National Collection of Microorganisms, National Institute of Molecular Biology and Biotechnology (BIOTECH), University of the Philippines Los Baños, Laguna Arsenia B. Sapin Food Laboratory, National Institute of Molecular Biology and Biotechnology (BIOTECH), University of the Philippines Los Baños, Laguna DOI: https://doi.org/10.14456/apst.2020.30 Keywords: Algae Bacterial pathogens Bioactive compounds Biological activity Diabetes Macroalgae Philippines […]

Vol. 26 No. 04 (2021): OCT-DEC

Synchrotron fourier transform infrared microspectroscopy and scanning electron microscopy assessment of key physical meat properties of Thai native chickens for selection in breeding programs

Sukanya Charoensin Department of Animal Science, Faculty of Agricultural, Khon Kaen University, Khon Kaen, Thailand Wuttigrai Boonkum Department of Animal Science, Faculty of Agricultural, Khon Kaen University, Khon Kaen, Thailand Kanjana Thumanu Synchrotron Light Research Institute (public organization), Nakhonratchasima, Thailand Banyat Laopaiboon Department of Animal Science, Faculty of Agricultural, Khon Kaen University, Khon Kaen, Thailand […]

Vol. 26 No. 04 (2021): OCT-DEC

Assessment of machine learning on sugarcane classification using Landsat-8 and Sentinel-2 satellite imagery

Teerapat Butkhot Remote Sensing and GIS Program, Department of Computer Science, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand Pipat Reungsang Remote Sensing and GIS Program, Department of Computer Science, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand DOI: https://doi.org/10.14456/apst.2021.38 Keywords: Sugarcane Machine learning Support vector machine Random forest Maximum likelihood Abstract Agriculture […]