Author

Pichet Limsuwan

Department of Physics, Faculty of Science, King Mongkut's University of Technology Thonburi Bangkok 10140, Thailand

9 articles in our journals

Articles where this person is an author, newest first. People are matched by their name as printed (no ORCID iD is recorded for them), not by name alone; search the name as text to find namesakes too.

Research ArticleOpen accessCharacteristics of Cut Head Hair: An Evidence in Criminal InvestigationsPol. Maj. Satina Polyiam, Pol. Lt. Sasithorn Boonmapa, Wuttichai Phae-Ngam, Pichet LimsuwanOne hot news occurred in Thailand one year ago was a 3-year-old girl was murdered and only a number of hair strands were found near her body and likely cut by a knife. Later some cut hairs were found at the cloth of the suspect. In this study, the authors would like to match the hairs found at the crime … …American Journal of Applied Sciences, Vol. 18, Issue 1 · 6 Oct 2021 · 14,375 accessesView PDF Cite

Research ArticleOpen accessLength Measurement of Long Gauge Blocks by InterferometerKanokporn Kohmun, Pichet Limsuwan, Monludee Ranusawud, Prathan BuranasiriA gauge block interferometer with a vacuum chamber was designed and constructed for the measurement of gauge block lengths between 10 to 1,000 mm. In the chamber, four gauge blocks under the length measurement can be mounted on the measuring table. Furthermore, the length of all four gauge blocks can be measured continuously in one measurement. In this study, four … …American Journal of Applied Sciences, Vol. 17, Issue 1 · 26 Sep 2020 · 7,099 accessesView PDF Cite

Research ArticleOpen accessEffect of the Papaya Latex on the Visibility of FingerprintChantira Boonsri, Pichet Limsuwan, Prathan BuranasiriThe effect of the papaya latex on the visibility of fingerprint was investigated. The fingerprints of the thumb without and with touching papaya latex for 5 and 10 min were prepared on the glass slides and captured by CMOS camera. The fingerprint images were reconstructed and the transverse intensity profiles were performed. The valley depth and the ridge width for … …American Journal of Applied Sciences, Vol. 17, Issue 1 · 27 Jul 2020 · 7,224 accessesView PDF Cite

Research ArticleOpen accessDetermination of Dynamic Viscosity of Viscous Oils using Mach Zehnder Digital Holographic MethodRittirong Nuansri, Pichet Limsuwan, Prathan BuranasiriThe digital in-line holography based on Mach Zehnder interferometer (MZDIH) was setup for the determination of dynamic viscosity of the viscous oils. The spherical irons were used as the falling objects in the viscous oils. The hologram images of the iron falling along its entire path were recoded as a video file on the CMOS camera. The recorded hologram images … …American Journal of Applied Sciences, Vol. 15, Issue 6 · 28 Jul 2018 · 7,687 accessesView PDF Cite

Research ArticleOpen accessComparison of 10 cm and 50 cm Long Iodine Cells in Iodine-Stabilized Diode Laser-Pumped Nd:YAG Laser at 532 nmPrayut Potirak, Monludee Ranusawud, Pichet Limsuwan, Prathan BuranasiriAn iodine-stabilized diode laser-pumped Nd:YAG laser system at 532 nm was developed at the National Institute of Metrology of Thailand (NIMT) for the first time in Thailand. Two iodine cells with the lengths of 10 and 50 cm were used for the comparison of frequency stability of Nd:YAG laser. The experiment was set for phase modulation spectroscopy. The Nd:YAG laser … …American Journal of Applied Sciences, Vol. 15, Issue 5 · 26 May 2018 · 7,886 accessesView PDF Cite

Research ArticleOpen accessRETRIEVAL OF 24 HOUR AEROSOL OPTICAL DEPTHS FROM MIE LIDAR DATASiriluk Ruangrungrote, Pichet Limsuwan, Arunee IntasornTemporal Aerosol Optical Depths (AODs) of Phimai district, Nakhon Ratchasima province in Thailand were retrieved from measured Mie lidar data on 17-20 February 2005 using Fernald method. The ground-based station was selected for its high and diverse local agricultural activities contributed to the aerosol content which allows for various parameters such as concentration, size distribution and aerosol optical properties to … …Physics International, Vol. 4, Issue 2 · 4 Sep 2013 · 6,515 accessesView PDF Cite

Research ArticleOpen accessEr3+-Doped Soda-Lime Silicate Glass: Artificial Pink GemstonePichet Limsuwan, Kheamrutai Thamaphat, Jakrapong Kaewkhao, Weeranut KaewwisetEr3+-doped soda-lime silicate glasses of the composition (in mol%) (65-x)SiO2:25Na2O:10CaO:xEr2O3 (where x = 0, 1, 2, 3, 4 and 5) were fabricated by conventional melt quenching technique. The physical and optical properties were measured and investigated. The erbium oxide enters the glass network as a modifier by occupying the interstitial space in the network and generating the NBOs to the … …American Journal of Applied Sciences, Vol. 9, Issue 11 · 29 Aug 2012 · 7,397 accessesView PDF Cite

Research ArticleOpen accessElectron Spin Resonance Study of Tertiary Sediments in Mae Moh Basin, Lampang ProvinceTidarut Vichaidid, Supanee Limsuwan, Pichet LimsuwanElectron Spin Resonance (ESR) studies have been carried out on Tertiary sediment collected from Mae Moh basin, well known for its lignite mining in Lampang province of the northern Thailand, a stratigraphic bedding plane in the sediment that formed in geological time of about 13 million years ago. Each individual sedimentary bed has its own unique assemblage and occurs in … …American Journal of Applied Sciences, Vol. 9, Issue 9 · 14 Jul 2012 · 7,172 accessesView PDF Cite

Research ArticleOpen accessOptical and Physical Properties of Bismuth Borate Glasses Doped With Dy3+Pichet Limsuwan, Jakrapong Kaewkhao, Parnuwat Chimalawong, Smit InsiripongThis study reports on physical and optical properties of Dy3+ doped bismuth borate glass. The glasses containing Dy3+ in (70-x)B2O3:30Bi2O3:xDy2O3 (where x = 0.0-2.5 mol%) have been prepared by melt-quenching method. In order to understand the role of Dy2O3 in these glasses, the density, molar volume and optical spectra were investigated. The results show that molar volume of the glasses … …American Journal of Applied Sciences, Vol. 8, Issue 6 · 13 Jun 2011 · 7,355 accessesView PDF Cite