Chitnarong Sirisathitkul
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View article: Exploring the potential of ChatGPT in guiding and troubleshooting the 3D ceramic printing by extrusion free-forming
Exploring the potential of ChatGPT in guiding and troubleshooting the 3D ceramic printing by extrusion free-forming Open
Advancements in additive manufacturing have enabled the creation of intricate ceramic structures with complex geometries. Among these, extrusion free-forming has emerged as a versatile and cost-effective method for fabricating ceramics use…
View article: Bloodstain in forensics: From visual inspections to AI-assisted pattern analysis and age estimation
Bloodstain in forensics: From visual inspections to AI-assisted pattern analysis and age estimation Open
Bloodstains have long served as critical evidence in forensic investigations, providing insights into the timing and nature of violent crimes. This article traces the historical evolution of bloodstain analysis, from early visual inspectio…
View article: Implementing ChatGPT as Tutor, Tutee, and Tool in Physics and Chemistry
Implementing ChatGPT as Tutor, Tutee, and Tool in Physics and Chemistry Open
In the age of modern technology, generative artificial intelligience-powered chatbots offer a variety of uses for different purposes. Undoubtedly, ChatGPT is one of the most widely used chatbots in science education. In this paper, we revi…
View article: Decoding Soil Color: Origins, Influences, and Methods of Analysis
Decoding Soil Color: Origins, Influences, and Methods of Analysis Open
Soil color serves as a critical indicator of its properties and conditions. It is shaped by a complex interplay of mineral and organic matter content, moisture levels, and other environmental variables. Additionally, human activities such …
View article: Accuracy and precision of smartphone colorimetry: a comparative analysis in RGB, HSV, and CIELAB color spaces for archaeological research
Accuracy and precision of smartphone colorimetry: a comparative analysis in RGB, HSV, and CIELAB color spaces for archaeological research Open
This study evaluates the accuracy and precision of color measurements obtained from digital images captured using smartphone cameras, validated against standard color cards under controlled lighting conditions. RGB (Red, Green, Blue) and H…
View article: Integrating problem-based learning into the first-year physics laboratory course: A post-COVID-19 scenario at Walailak University, Thailand
Integrating problem-based learning into the first-year physics laboratory course: A post-COVID-19 scenario at Walailak University, Thailand Open
The fundamentals of physics laboratory for teachers course at Walailak University, Thailand, has been revamped post-COVID-19 to incorporate problem-based learning (PBL) alongside traditional labs. This approach, aligned with the Thailand q…
View article: Slow but rewarding collaborations with ChatGPT in trifecta of thinking–doing–writing
Slow but rewarding collaborations with ChatGPT in trifecta of thinking–doing–writing Open
View article: Color analysis and classification of earthenware from Phra Mahathat Woramahawihan temple in southern Thailand using machine learning
Color analysis and classification of earthenware from Phra Mahathat Woramahawihan temple in southern Thailand using machine learning Open
Potsherds from Phra Mahathat Woramahawihan, a revered Buddhist temple in Thailand’s Nakhon Si Thammarat Province, were studied in the context of maritime Southeast Asia and local craftsmanship during the thirteenth–fourteenth century. The …
View article: Advancements in Characterization of Ancient Potteries from Southeast Asia: A Review of Analytical Techniques
Advancements in Characterization of Ancient Potteries from Southeast Asia: A Review of Analytical Techniques Open
Ancient potteries offer valuable information regarding technological advancements, life dynamics, cultural diversity, and trade routes in the past. Earthenware, stoneware, and porcelain from Southeast Asia have been characterized using sev…
View article: Smartphones as Smart Tools for Science and Engineering Laboratory: A Review
Smartphones as Smart Tools for Science and Engineering Laboratory: A Review Open
This article reviews a decade of research in transforming smartphones into smart measurement tools for science and engineering laboratories. High-precision sensors have been effectively utilized with specific mobile applications to measure…
View article: Modifying Barium Hexaferrite Magnets by Adding Sol-Gel Synthesized Cobalt Ferrite Phase
Modifying Barium Hexaferrite Magnets by Adding Sol-Gel Synthesized Cobalt Ferrite Phase Open
Combining various types of ferrites brings about magnetic properties desirable for different applications. This study aims to modify barium hexaferrite (BaFe12O19) by physically mixing it with cobalt ferrite (CoFe2O4). BaFe12O19/CoFe2O4 ma…
View article: Colorimetric parameters for bloodstain characterization by smartphone
Colorimetric parameters for bloodstain characterization by smartphone Open
This smartphone colorimetry investigated RGB (red, green and blue), HSV (hue, saturation and value of brightness) and CMYK (cyan, magenta, yellow and key) color parameters for characterizing bloodstains. Blood samples, separately deposited…
View article: Smart scientific instruments based on smartphones: a brief review
Smart scientific instruments based on smartphones: a brief review Open
Smartphone has gone beyond a communication hub to be a measurement device itself, thanks to various built-in sensors. This article reviewed achievements in transforming ubiquitous smartphones into cost-effective scientific instrument…
View article: Simulation and experimentation on parameters influencing microwave-assisted extraction of bioactive compounds from Kaempferia parviflora rhizomes
Simulation and experimentation on parameters influencing microwave-assisted extraction of bioactive compounds from Kaempferia parviflora rhizomes Open
In this study, a microwave extractor was successfully developed by simulating the waves and electric fields in a heating chamber. The chamber size and positions of the magnetrons were determined to maximize the heating in the microwave ext…
View article: Paste-Injection of Low-Density Barium Hexaferrite Magnets with Soft Magnetic Iron Phase
Paste-Injection of Low-Density Barium Hexaferrite Magnets with Soft Magnetic Iron Phase Open
Permanent magnets of varying shapes and sizes are increasingly produced. For hexaferrite magnets, it is challenging to incorporate polymers and a soft magnetic phase in the form of paste before injection molding or extrusion free-forming. …
View article: Recent Developments in 3D Printing of Rare-Earth-Free Permanent Magnets
Recent Developments in 3D Printing of Rare-Earth-Free Permanent Magnets Open
This article reviews the advances in additive manufacturing of magnetic ceramics and alloys without rare-earth elements. Near-net-shaped permanent magnets with varying shapes and dimensions overcome traditional limitations of the cast, sin…
View article: Tapioca starch in the sol-gel synthesis of cobalt ferrites with divalent cation substitutions
Tapioca starch in the sol-gel synthesis of cobalt ferrites with divalent cation substitutions Open
An aqueous solution of tapioca starch was successfully used as a chelating agent in the sol-gel synthesis of Co0.7Me0.3Fe2O4, where Me denotes Co, Mn, Cu, Ni, or Zn. The hysteresis loops of all sintered ferrites revealed ferrimagnetic prop…
View article: Enhanced Coercivity of Low-Density Barium Hexaferrite Magnets from Paste-Injection Molding
Enhanced Coercivity of Low-Density Barium Hexaferrite Magnets from Paste-Injection Molding Open
Ceramic–polymer paste-injection molding is demonstrated as a facile fabrication route for barium hexaferrite magnets. Interestingly, these low-density (1.90–2.35 g/cm3) magnets exhibit substantial coercivity of 3868–4002 Oe. When ceramic p…
View article: Dye removal efficiency of fresh and dry alginate beads incorporating zinc oxide
Dye removal efficiency of fresh and dry alginate beads incorporating zinc oxide Open
Alginate beads incorporating zinc oxide (ZnO) nanoparticles were shown as an alternative to treat water contaminated with sedge dye by combining photocatalytic activity with adsorption. Dry and fresh alginate beads were prepared by changin…
View article: Modernizing Batik Clothes for Community Enterprises Using Creative Design and Colorimetry
Modernizing Batik Clothes for Community Enterprises Using Creative Design and Colorimetry Open
The objective of this study was to modernize batik clothes, a cultural heritage of Southeast Asia, through creative design, color characterization, and collection presentation. Three community enterprises from the southern regions of Thail…
View article: Effects of bismuth and bismuth-copper substitutions on structure, morphology, and magnetic properties of sol-gel derived barium hexaferrites
Effects of bismuth and bismuth-copper substitutions on structure, morphology, and magnetic properties of sol-gel derived barium hexaferrites Open
The partial substitution by bismuth (Bi) is aimed to improve magnetic properties of barium hexaferrites from the sol–gel auto-combustion synthesis. The exceptionally high saturation magnetization of 99 emu/g is attributed to the substituti…
View article: Magnetic Properties and Morphology Copper-Substituted Barium Hexaferrites from Sol-Gel Auto-Combustion Synthesis
Magnetic Properties and Morphology Copper-Substituted Barium Hexaferrites from Sol-Gel Auto-Combustion Synthesis Open
The copper (Cu) substitution in barium hexaferrite (BaFe12O19) crystals from the sol-gel auto-combustion synthesis is demonstrated as a cost-effective pathway to achieve alterable magnetic properties. Subsequent heat treatments at 450 °C a…
View article: Comparison of closed-form solutions to experimental magnetic force between two cylindrical magnets
Comparison of closed-form solutions to experimental magnetic force between two cylindrical magnets Open
The force between permanent magnets implemented in many engineering devices remains an intriguing problem in basic physics. The variation of magnetic force with the distance x between a pair of magnets cannot usually be approximated as x-4…
View article: Effects of synthesis conditions and storage on silver nanospheres chemically reduced by mulberry leaf extracts
Effects of synthesis conditions and storage on silver nanospheres chemically reduced by mulberry leaf extracts Open
Silver (Ag) nanospheres were chemically reduced from 1 mM silver nitrate (AgNO3) solutions using mulberry (Morus alba Linn.) leaf extracts. The increase of pH in the synthesis from 9 to 13 modified the surface plasmon resonance peak in UV-…
View article: Microwave Drying for Production of Rehydrated Foods: A Case Study of Stink Bean (Parkia speciosa) Seed
Microwave Drying for Production of Rehydrated Foods: A Case Study of Stink Bean (Parkia speciosa) Seed Open
The potential of microwave drying in the production of rehydrated foods is demonstrated with stink beans (Parkia speciosa), smelly legumes of Africa and Asia. Compared to stink beans dehydrated by convective drying and freeze drying, the m…
View article: Effects of Carbon Doping and Annealing Temperature on Magnetic MnAl Powders and MnAl Polymeric Composites
Effects of Carbon Doping and Annealing Temperature on Magnetic MnAl Powders and MnAl Polymeric Composites Open
Process parameters leading to magnetic polymer composites, an essential ingredient in the additive manufacturing of rare-earth-free magnets, are investigated. The induction melting of manganese (Mn) and aluminum (Al), and subsequent anneal…
View article: Loading Effect of Sol-Gel Derived Barium Hexaferrite on Magnetic Polymer Composites
Loading Effect of Sol-Gel Derived Barium Hexaferrite on Magnetic Polymer Composites Open
Solution–processing methods were investigated as viable alternatives to produce the polymer-bonded barium hexaferrite (BaM). BaM powders were first synthesized by using the sol-gel auto-combustion method. While the ignition period in two s…
View article: Accuracy and Precision of Smartphones in Measurements of Illuminance and Liquid Turbidity
Accuracy and Precision of Smartphones in Measurements of Illuminance and Liquid Turbidity Open
Smartphones have demonstrated being attractive tools for illuminance and liquid turbidity measurements. The ambient light sensor and its corresponding mobile application can measure the reduction in illuminance with the distance away from …
View article: Antifungal Efficacy of Chitosan-Modified Zinc Oxide Nanoparticles on Tube Sedge Products
Antifungal Efficacy of Chitosan-Modified Zinc Oxide Nanoparticles on Tube Sedge Products Open
The antifungal properties of ZnO were implemented in the real handicraft and showed promising results for the value addition of local products by sun-screen and fungi protections. The inhibition of Aspergillus sp. growth on tube sedge bask…
View article: Synchrotron X-Ray Absorption Spectra of Iron Oxides Synthesized by Co-precipitation at Varying Temperatures
Synchrotron X-Ray Absorption Spectra of Iron Oxides Synthesized by Co-precipitation at Varying Temperatures Open
Oriental Journal of Chemistry is a peer reviewed quarterly research journal of pure and applied chemistry. It publishes standard research papers in almost all thrust areas of current chemistry of academic and commercial importance. It prov…