Songklanakarin Journal of Science and Technology (SJST)

Volume 43 No 6 November - December 2021

pp. 1542 - 1839

Development of in vitro culture system for proliferation of protocorm-like bodies of Oncidium Golden Anniversary orchid

Suhana Zakaria, Jessica Jeyanthi James Antony, Chee Keong Chin, Rahmad Zakaria, and Sreeramanan Subramaniam

DOI: 10.14456/sjst-psu.2021.201

pp. 1542 - 1549 PDF PDF w/Links

Linear inequations with 5-digit and regularity conditions on ordered ternary semigroups

Patchara Pornsurat, Pakorn Palakawong na Ayutthaya, and Bundit Pibaljommee

DOI: 10.14456/sjst-psu.2021.202

pp. 1550 - 1555 PDF PDF w/Links

Effects of lumbar flat back posture on upper trunk acceleration during gait: A preliminary study

Sun-shil Shin and Won-gyu Yoo

DOI: 10.14456/sjst-psu.2021.205

pp. 1570 - 1575 PDF PDF w/Links

Examination of lightweight hybrid electric vehicles in the long term utilizing system dynamics modeling approach

Anatawat Chayutthanabun and Thanwadee Chinda

DOI: 10.14456/sjst-psu.2021.206

pp. 1576 - 1584 PDF PDF w/Links

Feedback control of temperature in the pyrolysis process by using microwave heating system

Yutthapong Pianroj, Saysunee Jumrat, Seppo Karrila, Sunisa Chuayjumnong, and Sopida Sungsoontorn.

DOI: 10.14456/sjst-psu.2021.207

pp. 1585 - 1590 PDF PDF w/Links

Addition of Sesbania sesban in compost for reducing fraction of horse manure and enhancing the productivity of Agaricus bisporus

Husam Mahmod Rashid, Idham Ali Abed, and Mustafa Nadhim Owaid

DOI: 10.14456/sjst-psu.2021.208

pp. 1591 - 1596 PDF PDF w/Links

Identification of highly potent α-glucosidase inhibitors from Garcinia schomburgkiana and molecular docking studies

Thi My Lien Do, Nguyen-Minh-An Tran, Thuc-Huy Duong, Preecha Phuwapraisirisan, Nakorn Niamnont, Suttira Sedlak, Kewalin Inthanon, and Jirapast Sichaem

DOI: 10.14456/sjst-psu.2021.209

pp. 1597 - 1603 PDF PDF w/Links

The pressure dependence of the critical temperature of MgB2

Thaipanya Chanpoom

DOI: 10.14456/sjst-psu.2021.210

pp. 1604 - 1609 PDF PDF w/Links

On the sensitivity of robust control charts in monitoring contaminated data

Kooi Huat Ng, Poh Kheng Soon, Jeng Young Liew, and Kok Haur Ng

DOI: 10.14456/sjst-psu.2021.211

pp. 1610 - 1619 PDF PDF w/Links

Genetic variation of Boesenbergia rotunda (L.) Mansf. from Thailand based on essential oil compositions and internal transcribed spacer sequences

Orawan Theanphong, Withawat Mingvanish, Thaya Jenjittikul, and Kanchana Rungsihirunrat

DOI: 10.14456/sjst-psu.2021.212

pp. 1620 - 1627 PDF PDF w/Links

Body measurements of beef cows by using mobile phone application and prediction of body weight with regression model

Peerayut Nilchuen, Tipmon Yaigate, and Wirat Sumon

DOI: 10.14456/sjst-psu.2021.214

pp. 1635 - 1640 PDF PDF w/Links

A two-sample multivariate test with one covariance matrix unknown

Samruam Chongcharoen and Manachai Rodchuen

DOI: 10.14456/sjst-psu.2021.215

pp. 1641 - 1647 PDF PDF w/Links

Study of the multi-airport system in “Greater Jakarta” with the potential of secondary airports of Pondok Cabe or Budiarto

Tri Sefrus, Sigit Priyanto, Dewanti, and Muhammad Zudhy Irawan

DOI: 10.14456/sjst-psu.2021.216

pp. 1648 - 1654 PDF PDF w/Links

Effects of water temperature rise on energy budget allocation in Pacific white shrimp (Litopenaeus vannamei)

Chanadda Kasamechotchung, Sorawit Powtongsook, Narongsak Puanglarp, Oraporn Meunpol, and Siriwan Khidprasert

DOI: 10.14456/sjst-psu.2021.217

pp. 1655 - 1662 PDF PDF w/Links

Effects of co-fungal fermented rice bran on growth performance, feed conversion and carcass composition of Clarias gariepinus fingerlings

Oladipo Oladiti Olaniyi, Daniel Juwon Arotupin, and Abiodun Emmanuel Falade

DOI: 10.14456/sjst-psu.2021.218

pp. 1663 - 1670 PDF PDF w/Links

Resistance of Monochoria vaginalis to Bensulfuron-methyl in Central Java and East Java Indonesia

Denny Kurniadie, Ryan Widianto, Dedi Widayat, Uum Umiyati, and Ceppy Nasahi

DOI: 10.14456/sjst-psu.2021.219

pp. 1671 - 1676 PDF PDF w/Links

Effects of thickness and length of custom made insole on plantar pressure for diabetic foot with neuropathy: A finite element approach

Muhammad Nouman, Tulaya Dissaneewate, Desmond Y.R. Chong, and Surapong Chatpun

DOI: 10.14456/sjst-psu.2021.220

pp. 1677 - 1684 PDF PDF w/Links

Effects of cushioning pads on heel and forefoot plantar pressure reduction in walking and running

Satta Srewaradachpisal, Charoenyutr Dechwayukul, Surapong Chatpun, and Wiriya Thongruang

DOI: 10.14456/sjst-psu.2021.221

pp. 1685 - 1693 PDF PDF w/Links

Mechanical properties of repair welds for aluminum alloy 6082-T6 by pulsed MIG welding process

Thet Htet Naing and Prapas Muangjunburee

DOI: 10.14456/sjst-psu.2021.222

pp. 1694 - 1700 PDF PDF w/Links

Determination of water content of a residual soil slope in response to infiltrating rainwater using transient seepage model and its verification

Thitinan Indhanu, Panupong Thumtuan, Tanan Chub-Uppakarn, and Tanit Chalermyanont

DOI: 10.14456/sjst-psu.2021.223

pp. 1701 - 1707 PDF PDF w/Links

Biomechanical evaluation of lag screw fixation in oblique humeral shaft fracture: A finite element study

Phachara Suklim, Chaiwat Chuaychoosakoon, and Atichart Kwanyuang

DOI: 10.14456/sjst-psu.2021.224

pp. 1708 - 1715 PDF PDF w/Links

Determination of rare earth elements, uranium and thorium in soil samples by microwave-assisted acid digestion and inductively coupled plasma mass spectrometry

Sasikarn Nuchdang, Ratchai Fungklin, Wilasinee Kingkam, and Dussadee Rattanaphra

DOI: 10.14456/sjst-psu.2021.225

pp. 1716 - 1725 PDF PDF w/Links

Establishing an automated graphical genome analysis platform

Wison Laochareonsuk, Komwit Surachat, and Surasak Sangkhathat

DOI: 10.14456/sjst-psu.2021.226

pp. 1726 - 1735 PDF PDF w/Links

Genetic study of SPINK1 and PRSS1 in idiopathic chronic pancreatitis and allele frequencies of SPINK1 and PRSS1 in the southern Thai population

Putthimet Lekhakul Promin, Wison Laochareonsuk, Nisa Netinatsunton, Supika Kritsaneepaiboon, and Surasak Sangkhathat

DOI: 10.14456/sjst-psu.2021.227

pp. 1736 - 1742 PDF PDF w/Links

Structural and morphological characterization of Thai monazite ore processing samples

Sasikarn Nuchdang, Wilasinee Kingkam, Vichai Puripunyavanich, Unchalee Suwanmanee, Pipat Laowattanabandit, and Dussadee Rattanaphra

DOI: 10.14456/sjst-psu.2021.228

pp. 1743 - 1750 PDF PDF w/Links

Preparation and characterization of mixed rare earth hydroxide by co- precipitation method

Wilasinee Kingkam, Sathita Ratnon, Saranphon Boonruang, Winyu Chitsamphandhvej, Vichai Puripunyavanich, Sasikarn Nuchdang, and Dussadee Rattanapha

DOI: 10.14456/sjst-psu.2021.229

pp. 1751 - 1755 PDF PDF w/Links

Model-based design of stator winding inter-turn short circuit faults in induction motors

Marut Raksa, Kiattisak Sengchuai, Anuwat Prasertsit, and Nattha Jindapetch

DOI: 10.14456/sjst-psu.2021.231

pp. 1764 - 1771 PDF PDF w/Links

Knowledge modelling in teaching and learning with technology support

Athitaya Nitchot, Lester Gilbert, and Wiphada Wettayaprasit

DOI: 10.14456/sjst-psu.2021.232

pp. 1772 - 1778 PDF PDF w/Links

Building energy index (BEI) of hospital buildings in Iraq: A case study

Anwer Abdulhussein Gatea and Mohd Faizal Mohideen Batcha

DOI: 10.14456/sjst-psu.2021.233

pp. 1779 - 1785 PDF PDF w/Links

Post-treatment for high content of ethyl ester from esterification of palm fatty acid distillate

Waritorn Kanjaikaew, Chakrit Tongurai, and Sininart Chongkhong

DOI: 10.14456/sjst-psu.2021.234

pp. 1786 - 1792 PDF PDF w/Links

Enhanced volatile fatty acids production from Napier grass (Pennisetum purpureum) using micro-aerated anaerobic culture

Chayanon Sawatdeenarunat, Rotjapun Nirunsin, and Sumate Chaiprapat

DOI: 10.14456/sjst-psu.2021.235

pp. 1793 - 1799 PDF PDF w/Links

Application of Hjorth parameters in the classification of healthy aging EEG signals

Hamad Javaid, Krit Charupanit, Ekkasit Kumarnsit, and Surapong Chatpun

DOI: 10.14456/sjst-psu.2021.237

pp. 1807 - 1814 PDF PDF w/Links

Floating search and conditional independence testing for causal feature selection

Rakkrit Duangsoithong and Yuying Zhao

DOI: 10.14456/sjst-psu.2021.239

pp. 1823 - 1830 PDF PDF w/Links

Motorcycle detection based on deep learning implemented on FPGA

Feng Peng, Kittikhun Thongpull, Masami Ikura, and Nattha Jindapetch

DOI: 10.14456/sjst-psu.2021.240

pp. 1831 - 1839 PDF PDF w/Links