2020 – Asia-Pacific Journal of Science and Technology (APST)

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

Soundecology indicators applied to urban parks: a preliminary study

Roberto Benocci Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, Milano, Italy Giovanni Brambilla CNR-INM Department of Acoustics and Sensors “O.M. Corbino”, Rome, Italy Alessandro Bisceglie Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, Milano, Italy Giovanni Zambon Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, Milano, Italy DOI: […]

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

Approximate average run length and its eigenvalue problem on exponentially weighted moving average control chart: an economic application

Rapin Sunthornwat Industrial Technology Program, Faculty of Science and Technology, Pathumwan Institute of Technology, Bangkok, Thailand Yupaporn Areepong Department of Applied Statistics, Faculty of Applied Science, King Mongkut’s University of Technology North Bangkok, Bangkok, Thailand DOI: https://doi.org/10.14456/apst.2020.39 Keywords: Average run length Exponentially weighted moving average control chart Integral equation Eigenvalue problem Inflation rate data of […]

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

Assessing the positional accuracy and adequacy of the Nigerian GNSS reference network

Chukwuma J. Okolie Department of Surveying & Geoinformatics, Faculty of Engineering, University of Lagos, Lagos, Nigeria https://orcid.org/0000-0003-4542-7051 Emmanuel G. Ayodele Department of Surveying & Geoinformatics, Faculty of Engineering, University of Lagos, Lagos, Nigeria https://orcid.org/0000-0003-2684-2276 Anthony O. Mayaki Department of Geodesy & Geomatics Engineering, University of New Brunswick, Fredericton, Canada https://orcid.org/0000-0002-9253-3546 Olagoke E. Daramola Department of […]

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

Effect of heating time on the nutritional value of sap during traditional brown sugar processing from Arenga pinnata

Yeyen Maryani PUI-PT Food Security, Universitas Sultan Ageng Tirtayasa, Serang, Indonesia Agus Rochmat Chemical Engineering Department, Universitas Sultan Ageng Tirtayasa, Cilegon, Indonesia Jayanudin Chemical Engineering Department, Universitas Sultan Ageng Tirtayasa, Cilegon, Indonesia Teguh Kurniawan PUI-PT Food Security, Universitas Sultan Ageng Tirtayasa, Serang, Indonesia DOI: https://doi.org/10.14456/apst.2020.37 Keywords: Palm sap Brown sugar Sucrose Glucose Fructose Minerals Antioxidants […]

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

Microbiological evaluation of Thai fermented fish (pla-ra) production contact surfaces

Anggita Ratri Pusporini Department of Food Technology, Faculty of Technology, Khon Kaen University, Khon Kaen, Thailand Patimakorn Pasuwan Department of Food Technology, Faculty of Technology, Khon Kaen University, Khon Kaen, Thailand DOI: https://doi.org/10.14456/apst.2020.36 Keywords: Pla-ra Pathogenic bacteria Container Clay Polyethylene Contact surfaces Abstract Pla-ra is a lactic acid fermented fish product in Thailand, typically consumed […]

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

Correlation of antioxidant activity and protein alteration of silver BARB protein hydrolysates

Srisan Phupaboon Graduate School, Khon Kaen University, Khon Kaen, Thailand Sirinda Yunchalard Department of Biotechnology, Faculty of Technology, Khon Kaen University, Khon Kaen, Thailand Weera Piyatheerawong Department of Biotechnology, Faculty of Technology, Khon Kaen University, Khon Kaen, Thailand DOI: https://doi.org/10.14456/apst.2020.35 Keywords: Fish muscle protein Protein hydrolysate extract Bioactive compound Functional food Physicochemical characteristics Abstract The […]

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. 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. 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 […]