Boonsang S

• Ph.D. in Instrumentation
• Head of Faculty at King Mongkut's Institute of Technology Ladkrabang

This study develops and evaluates a deep learning based visual servoing (DLBVS) control system for guiding industrial robots during aircraft refueling, aiming to enhance operational efficiency and precision. The system employs a monocular camera mounted on the robot's end effector to capture images of target objects—the refueling nozzle and bottom...

Anaplasmosis, which is caused by Anaplasma spp. and transmitted by tick bites, is one of the most serious livestock animal diseases worldwide, causing significant economic losses as well as public health issues. Anaplasma marginale, a gram-negative intracellular obligate bacterium, can cause disease in cattle and other ruminants. Because of the ins...

Vector-borne diseases pose a major worldwide health concern, impacting more than 1 billion people globally. Among various blood-feeding arthropods, mosquitoes stand out as the primary carriers of diseases significant in both medical and veterinary fields. Hence, comprehending their distinct role fulfilled by different mosquito types is crucial for...

Traditional mosquito identification methods, relied on microscopic observation and morphological characteristics, often require significant expertise and experience, which can limit their effectiveness. This study introduces a self-supervised learning-based image classification model using the Bootstrap Your Own Latent (BYOL) algorithm, designed to...

Background and Aim: Zoonotic diseases caused by various blood parasites are important issues of public health concern, impacting both animals and humans worldwide. The traditional method of microscopic examination for the parasite diagnosis is labor-intensive, time-consuming, and prone to variability among observers, necessitating highly skilled an...

Background Object detection is a new artificial intelligence approach to morphological recognition and labeling parasitic pathogens. Due to the lack of equipment and trained personnel, artificial intelligence innovation for searching various parasitic products in stool examination will enable patients in remote areas of undeveloped countries to acc...

This research focuses on the development of environmentally friendly textile-based shielding composites, from micro-sized and nanosized Bi2O3 particles, against ionizing radiation. Polyester fabric dyne-coated with either micro- or nano-Bi2O3 particles shields some X-rays but the effectiveness is poor. With only ∼58% uptake of micro-sized Bi2O3 par...

DNA double-strand breaks (DSBs) are the most lethal form of damage to cells from irradiation. γ-H2AX (phosphorylated form of H2AX histone variant) has become one of the most reliable and sensitive biomarkers of DNA DSBs. However, the γ-H2AX foci assay still has limitations in the time consumed for manual scoring and possible variability between sco...

Both the ABO and Rhesus (Rh) blood groups play crucial roles in blood transfusion medicine. Herein, we report a simple and low-cost paper-based analytical device (PAD) for phenotyping red blood cell (RBC) antigens. Using this Rh typing format, 5 Rh antigens on RBCs can be simultaneously detected and macroscopically visualized within 12 min. The pro...

Objective: Radiographic interpretation suffers from an ever-increasing workload in orthopedic and radiology departments. The present study applied and assessed the performance of a convolutional neural network designed to assist orthopedists and radiologists in the detection and classification of knee osteoarthritis from early to severe degrees in...

Many medical equipment, such as tubes, lenses, and disposable plastic slides, require improved wettability to perform properly with physiological fluids and tissues. The authors proposes the regeneration of silk cocoons into insoluble and flexible regenerated silk fibroin (SF) films allowed for the development of novel materials with distinct and c...

This paper outlines a system for detecting printing errors and misidentifications on hard disk drive sliders, which may contribute to shipping tracking problems and incorrect product delivery to end users. A deep-learning-based technique is proposed for determining the printed identity of a slider serial number from images captured by a digital cam...

The infection of an avian malaria parasite ( Plasmodium gallinaceum ) in domestic chickens presents a major threat to the poultry industry because it causes economic loss in both the quality and quantity of meat and egg production. Computer-aided diagnosis has been developed to automatically identify avian malaria infections and classify the blood...

This study proposes to evaluate the performance of Acute Myeloid Leukaemia (AML) blast cell detection models in microscopic examination images for faster diagnosis and disease monitoring. One of the popular deep learning algorithms such as You Only Look Once (YOLO) developed for object detection is the successful state-of-the-art algorithms in real...

Recently, mosquito-borne diseases have been a significant problem for public health worldwide. These diseases include dengue, ZIKA and malaria. Reducing disease spread stimulates researchers to develop automatic methods beyond traditional surveillance Well-known Deep Convolutional Neural Network, YOLO v3 algorithm, was applied to classify mosquito...

Microscopic observation of mosquito species, which is the basis of morphological identification, is a time-consuming and challenging process, particularly owing to the different skills and experience of public health personnel. We present deep learning models based on the well-known you-only-look-once (YOLO) algorithm. This model can be used to sim...

Background: The infections of an avian malaria parasite (Plasmodium gallinaceum) in domestic chickens presents a major threat to poultry industry because it cause economical loss in both quality and quantity of meat and egg productions. Deep learning algorithms have been developed to identify avian malaria infections and classify its blood stage de...

The infection of an avian malaria parasite ( Plasmodium gallinaceum ) in domestic chickens presents a major threat to the poultry industry because it causes economic loss in both the quality and quantity of meat and egg production. Computer-aided diagnosis has been developed to automatically identify avian malaria infections and classify the blood...

Thin films of silk fibroin were prepared by solvent evaporation from calcium chloride/ethanol aqueous solution. The influence of alcohol treatments on thermal, mechanical and optical properties of silk-fibroin-based film is presented. To understand the conformal structure of the alcohol-treated silk fibroin film, the IR spectral decomposition metho...

This paper presents a formula for estimating the probability of collecting a given amount of data from a propagation model and multi-hop wireless sensor networks (WSNs) based on Monte Carlo simulation with cluster-tree topology. The probabilistic model is based on an analytical model of the IEEE 802.15.4 MAC protocol. The probability of successful...

Biopolymers combined with 3D printing technology for tissue engineering have been extensively used in many biomedical applications such as organ and tissue regeneration. The 3D printing technology generally relies on a continuous dispensing process, which is usually known as complicated dynamic processes. This is primarily caused by the rheological...

In the hard disk drive (HDD) industry, the measurement of flying height is crucial for the verification of the recording head air-bearing design. The flying performance of recording heads has to be measured and compared with the original design to assure the reliability of HDDs. Optical interferometry is normally used to measure the flying height o...

Eco-friendly starch biofoams derived from natural rubber were fabricated in this study. To overcome their two main shortcomings, i.e., lack of flexibility and susceptibility to moisture, cotton fiber and concentrated natural rubber latex (CNRL) were incorporated into the biofoam products. Cotton-fiber-reinforced cassava starch biofoams were success...

In this paper, we present a flash photography method for the measurements of the fluid flow dynamic of a fluid dispensing system. A fluid dispensing system is one of the key processes to deliver fluid materials to various positions in assembly parts of several manufacturing industries. A dispensing process is a complicated dynamic process and time-...

Conducting polymers based on inorganic particle filled composites are versatile materials applying widely in electronic devices including electrostatic dissipative (ESD) materials. This study focuses on low-cost fabrication, mechanical and electrical properties of eco-friendly ESD materials based on chitosan/gelatin biocomposite films filled with r...

In Hard Disk Drive (HDD) industry, the flying height measurement is the one of the key process for the validation of the recording head production. The flying performance of recording heads has to be measured and compared with the original design, in order to assure the reliability of the HDD. However, as the capacity of HDD is increasing exponenti...

This paper presents an image-based visual servo control system incorporating with an eye-in-hand monocular camera without using the interaction matrix as traditional method. Instead, we propose the modified image-based visual servo control system for monocular from point error and area error. By using the method derived from the point error and are...

The aim of this paper is to present a simplified vector control implementation without current sensors in order to reduce cost of overall system, design complexity, and improving by using proportional-integral fuzzy logic control (PI-FLC) for high performance in wide-speed-range operation. In this scheme, voltage source inverter used space vector p...

With an aim to develop anti-electrostatic discharge materials based on biodegradable polymers, poly(vinyl alcohol) films composited with two different conductive fillers (carbon black and aluminium) at various fillers contents (20−60%wt), were manufactured using solvent-casting technique. The mechanical properties of such the films were investigate...

This paper presents a back focal plane microellipsometer combined with a polarized shifting interferometer. This system is used for the determination of optical phase shift on reflection of a slider's air bearing surface. These optical properties are essential parameters for the flying height measurements in a HDD manufacturing process. The resulti...

This paper describes a novel technique using an elctromagnetic acoustic transducer (EMAT) for biomedical photoacoustic measurements. The physical principle underlying and EMAT sensor is based on the detection of electromagnetic signals, which are responses from the interaction of ultrasonic waves and magnetic fields within the electrically conducti...

The TuMR reader was designed with high sensitivity for high areal density magnetic recording in the hard disk drive. The assembly process requires the use of solder jet welding on small connectors in the head circuit. The solder bridging problem is the cause of the major mechanical yield loss. This work considers how to resolve the bridging problem...

In this paper the numerical method based on Monte Carlo techniques is utilized for the analysis of the flying height measurement uncertainty. In the current flying height tester, the prediction of error is the main concern in order to assure the attainable precision. In previous study, a simplified analytical method is normally used and it may not...

This paper presents the environmental controlled system for the flying height measurement. The effect of temperature and humidity to flying height change is seriously needed due to the critically small head-media spacing. The small environmental changes can cause the variation of the head-media spacing. The flying height measurement system is based...

The Hard Disk Drive is the important storage component in computer. The high volume of Hard Disk Drive manufacturing is required. The cost improvements are strictly focused on yield, direct material, indirect material, and operation cost. The defect reduction is a important key to improve cost. The small percentage of defect reduction will contribu...

This paper presents simulation study of distance protection in electric power transmission systems with a renewable energy plant. In many developing countries where renewable energy power plants are typically located in rural remote areas, they can be connected to electric power transmission systems for a case of small power producers (SPP) with th...

The Hard Disk Drive is the important components in the present computer. The Hard Disk Drive manufacturing need high productivity and cost improvement to support the market needs. Many cost reduction are done on product design, material cost and manufacturing operation. This work shows an idea to improve productivity and also reduce the scrap cost...

This paper presents a numerical model for the evaluation of mechanical properties of a relatively thin hydrogel. The model utilizes a system identification method to evaluate the acoustical parameters from ultrasonic measurement data. The model involves the calculation of the forward model based on an ultrasonic wave propagation incorporating diffr...

Pulsed photoacoustic techniques for measurements in non-destructive evaluation (NDE) and for non- invasive characterization of tissues have been an in- creasingly attractive research area for over a decade. The physical principle underlying these techniques is based on the opto-thermal response of an absorbing media from pulsed laser sources. Resul...

In this paper, the development of an ultrasonic characterization method for Poly-Vinyl Alcohol (PVA) hydrogel incorporating diffraction effects is purposed. The Lommel integral, diffraction correction procedure, is applied to the model. Nonlinear least square algorithm, iterative computation in forward model, is employed to minimize the error of th...

This paper purposes a numerical model of drug targeting using wedge-like magnetic device. The magnetic liquids play a crucial role as drug carriers in the human body. The wedgelike magnetic is also utilized to focus magnetic liquids. The finite element method, FEM, is applied to solve two important sets of partial differential equation. Electromagn...

A new magnetic arrangement is described for use with an in-plane electromagnetic acoustic transducer (EMAT) for detecting laser-generated ultrasound. The magnetic flux density was modelled and validated. Modelling was accomplished in 3D using finite element software to predict new magnet spatial distributions. A configuration was found which increa...

The magnetic liquids such as ferrofluids, biocompatible magnetic nanocarrier, play an important role as drug carriers in the human body. Based on Maxwell's equation and Navier-Stokes equations, a time-dependent analysis of a two-dimensional computational model of magnetic fluid flow is purposed. The FEM is applied to solve Maxwell's equation for a...

In this paper, time dependent analysis of magnetic fluid is purposed. The ferrofluids is a biocompatible magnetic nanocarrier, which play an important role as drug carrier in the human body to treat the tumor or cancer. The various types of cancerous cells have been studied from the mathematical point of view. Based on Navier-Stokes equations, Maxw...

Interpenetrating polymer network hydrogels composed of poly(ethylene glycol) macromer (PEGM) and chitosan were synthesised by UV irradiation of solutions in a mild aqueous media. The IPN hydrogels exhibited the equilibrium water content (EWC) in the range of 86–94%. The hydrogels were characterised using FT-IR, FT-Raman spectroscopy and differentia...

The paper presents a novel design of an electromagnetic acoustic transducer (EMAT) for non-contact ultrasonic measurements. An EMAT sensor has been miniaturized with an overall receiver size to 1.0 cm diameter. It has been combined with a specially designed low noise preamplifier. Calibration procedures with a Michelson interferometer revealed that...

This paper presents an enhanced in-plane electromagnetic acoustic transducer (EMAT) for detecting laser-generated ultrasound. Instead of using post-processing of numerical data to enhance signal-to-noise, the paper describes a new EMAT design to increase the magnetic flux density applied to the sample. The EMAT's magnetic flux density was modelled...

The ferrofluid is a biocompatible magnetic nanocarrier, which play an important role as drug carrier in the human body to treat the tumor or cancer. The various types of cancerous cells have been studied from the mathematical point of view. Based on Maxwell's equations and Navier-Stokes equations, a finite element method of a two-dimensional comput...

Enhancement of signal amplitudes from Rayleigh wave interaction at solid surface features has been investigated when signals were detected by an in-plane electromagnetic acoustic transducer (EMAT). A laser-ultrasound system was used to inspect surface-breaking slots, serving as artificial defects. Nd:YAG laser pulses were delivered onto a metal sur...

For the interpretation of photoacoustic waveforms, a diffraction correction method is presented based on an exact Lommel diffraction formulation. It is already known that tissue optical absorption coefficients may be determined by using a time resolved analysis. Normally, corresponding experiments measure signals close (a few mm) to a photoacoustic...

This paper describes the application of a frequency domain synthetic aperture focusing technique to photoacoustic imaging. The photoacoustic probe consisted of a laser delivery fiber-optic (diameter of 600 μm, plastic coated silica) combined with a polymer (PVDF) transducer for ultrasonic detection. This system had a broadband frequency response in...

This paper describes the application of a frequency domain synthetic aperture focusing technique to photoacoustic imaging. The photoacoustic probe consisted of a laser delivery fiber-optic (diameter of 600 mum, plastic coated silica) combined with a polymer (PVDF) transducer for ultrasonic detection. This system had a broadband frequency response i...

This paper describes the application of a diffraction correction method based on an exact Lommel diffraction formulation applied to an optoacoustic signal. It is already known that the optoacoustic signal contains valuable information about tissue optical properties. Using time-resolved analysis, the tissue optical absorption coefficient can be eas...

Synthetic aperture focusing techniques (SAFT) have been applied to B-scan images of artificial defects produced by a scanning photoacoustic probe operating under water. The probe consisted of a fibre-optic laser beam delivery system combined with a polymer (PVDF) transducer mounted at the tip of the probe for ultrasonic reception. This system had a...

The enhancement of signals from Rayleigh wave interaction at solid surface features is described, for the case when signals arise from laser-ultrasound/electromagnetic-acoustic transducer (EMAT) detection system. Transient surface acoustic waves were detected by an in-plane EMAT receiver. B-scan images from surface slot or surface edge interactions...

Suffering from breast cancer is one of the important health problems which threaten a middle-aged woman around the world for a long time ago. Diagnosis any abnormality by using a conventional ultrasound is a preliminary investigation which should be performed annually. In this paper, we propose a simulation of our modified imaging setup system for...

The magnetic liquids such as ferrofluids, biocompatible magnetic nanocarrier, play an important role as drug carriers in the human body. Based on Maxwell's equation and Navier-Stokes equations, a time-dependent analysis of a two-dimensional computational model of magnetic fluid flow is purposed. The FEM is applied to solve Maxwell's equation for a...