This study introduces the design, development, and evaluation of a smart walking assistant tailored to enhance the mobility, safety, and independence of elderly individuals. The system integrates an ESP32 microcontroller to interface with multiple sensors, including the MAX30102 for monitoring heart rate and blood oxygen saturation, the GY-906 infrared sensor for body temperature measurements, and the MPU6050 accelerometer and gyroscope for precise motion tracking and fall detection. A compact and modular control unit, seamlessly integrated into the walker, enables real-time data collection and wireless transmission using LoRa and Wi-Fi technologies. This connectivity facilitates the delivery of alerts to caregivers through a user-friendly mobile application. Rigorous testing, including simulated fall scenarios and physiological parameter measurements, validated the system’s accuracy, reliability, and responsiveness. The results demonstrated high precision in detecting obstacles, falls, and physiological anomalies, while the system’s integration with IoT-based communication platforms ensures timely intervention. The smart walking assistant offers a comprehensive and effective solution, promoting safety and quality of life for elderly users.

In this work, we investigated the thermoelectric properties of SnSe (Tin Selenide) thin films onto SiO2/Si-wafer substrates as prepared by RF (radio frequency) magnetron sputtering technique. The sputtering conditions used base pressure below 5.5 10-4 Pa and working pressure at 0.93 Pa within the Ar atmosphere as a flow rate fixed 40 sccm. The RF sputtering power was applied at 80 W and sputtering time for 30 min. After thin film deposition, as-deposited thin films were annealed by the vacuum annealing method at 300-450 oC. The crystal structure, morphology and film thickness, and atomic composition of SnSe thin film were carried out by X-ray diffraction (XRD), the field emission scanning electron microscope (FE-SEM), and energy-dispersive X-ray spectroscopy (EDS) techniques, respectively. The thermoelectric properties (electrical resistivity; ρ) and Seebeck coefficient; S) were measured by the ZEM-3 method to calculate the power factor (PF) value. The results showed that the as-deposited thin films had improved the crystallography of SnSe from amorphous to crystalline phases after thin films were annealed at a temperature range of 300-400 oC. At room temperature, the maximum power factor of 0.35 mW m˗1 K˗2 (ρ = 202 mΩ m and S = 165 μV K˗1) could be found to estimate the dimensionless Figure of Merit (ZT) values around 0.44 for annealing thin film sample at 400 oC.

This work developed a biosensor for the measurement of ethanol gas in the air. The biosensors were synthesized by mixing signal layer materials containing SiO2 and polyimide (PI) substrates using the enzyme Alcohol Dehydrogenase (ADH) and coenzyme Nicotinamide Adenine Dinucleotide (NAD+) as a biosensor. The electrodes were coated on biosensors by DC magnetron sputtering method for test the response performance of the developed biosensors. The ADH/NAD+ was immobilized on the Ag electrode by Glutaric dialaehyde 25 wt. % cross-linking procedure. It was found that, alcohol biosensors can be exhibited sensing ethanol gas at even low concentrations from 300 ppb to very high concentrations up to 1900 ppm, response time 3 s, recovery times 1-2 minutes and good sensitivity. The SiO2 substrate has excellent, which provides significant advantages for wearable electronic device that compact, easy to use and reduce direct contact with alcoholics. The alcohol biosensors can adoption in next generation to other electronic devices, because easy to integrate, such as a module alcohol biosensor with wireless or the fabrication of the RCL circuit. Furthermore, the alcohol biosensors based on SiO2/Ag/ADH, PI/Ag/ADH is artificial intelligence strategy for stable practical wearable electronic devices.

Copper Iodide (CuI) transparent thin films were synthesized by using the as-deposited Cu thin film dip in the Iodine (I-2) solution (1% per 100 cc.) for 15s, 30s, and 60s within the liquid iodination method. The as-deposited Cu thin films on glass slide substrates as used were prepared by a dc magnetron sputtering method from the Cu target. The microstructure, morphology, and thermoelectric properties were studied by using X-ray diffraction (XRD) techniques, scanning electron microscopy (SEM), and the ZEM-3 method, respectively. The optical property of the film samples was determined from measured transmittance using a UV-visible spectrophotom-eter. The optical bandgap energy is 3.0 eV and the transmittance is around 80-95% for the thin film as dipped 30s. At room temperature, the power factor of Cul thin films were 14.71, 17.49, and 17.48 mu W m(-1) K-2 for as dipped 15s, 30s, and 60s, respectively.

The chemical quality of juices and wine produced from Mamao fruit was evaluated by Fourier transform near-infrared (FT-NIR). The calibration equation was created by the cross-validation method to be si+mulated the accuracy. Statistical values composed of correlation coefficient (R), standard error of cross-validation (SECV) and bias were used. Brix values and acidity values of Mao juice and the Brix, acidity, and alcohol values of Mao wine products were evaluated through the standard and cross-validation relation. It was found that was observed with NIR spectrometer to be absorbed in the same IR wavelength (1450 nm) which indicated that the water is the main composition. Based on FT-NIR analysis, the spectrum latices of juices and wine were revealed in the same range of the absorption bands at 1450 nm and 1940 nm to be confirmed the water composition. Also, the FT-NIR spectra from region 2258-2312 nm in Mao wine product have been predicted to the Ethanol functions.

Constant temperature controlling for the aging of Mao-wine is significant of that quality of wine. In this presentation, the aging tank of the Mao-wine was designed and the intelligent temperature controlling and monitoring systems were carried by using Arduino Mega and ds180b20 temperature sensors. The system can detect the set temperature in the specified range. The principle that was designed is uncomplicated, easy to understand. The result showed that Mao-wine has been matured in aging tank within the temperature controlled around 13 °C. This result was confirmed with the temperature distribution during wine aging as simulated by the finite element method. Note that, this temperature as controlled was suitable into wine aging and reduced time of wine aging to product as same the quality of wine. Therefore, the principle does not require linear control because it has designed the work according to the written algorithm, so it works respectfully can be used in the local enterprises regarding Mao-wine production.

The water pump has been supported by agriculturalist to control the quantity of water with agriculture. However, the water pump used oil or electrical energy which increased cost of agriculturalist and some area no have electricity or far from the marsh. We proposed the innovative mobile solar cell water pump which clean energy for solving the problem of no electricity, agricultures far from water and pumping water ground and underground. It was found that the mobile solar cell water pump can tacking: Z-axis 0-70° and X-axis 0-360°, changing battery storage: 24 V; 50 Ah and moving anywhere by agriculturalist control. The stroke pump can pump water 3000 L/h and transfer water 200 m to agricultural area which easily and low cost maintenance by agriculturalist. The microcontroller system like artificial intelligence (AI) is shown on the monitor of electrical power, electromotive force, electrical current, water flow rate, and quantity water.

In this work, we evaluated the electronic structure and Seebeck coefficient (S) of Mg2Si by molecular orbital calculation. The energy level, density of state, electron contour map, Fermi energy and S were analyzed. The electronic structure show that, the energy gap = 0.68 eV, and the highest of density of state at 22.4 eV. The electron contour map exhibits the highest density of Si atom at HOMO and LUMO. The S exhibits negative value which indicated that n-type thermoelectric material. This calculated imply that the S has dependent on Fermi energy which is decreased with increasing temperature.

Sakon Nakhon province community life can’t be examined the quality of Geographical Indication (GI) such as food, beverages, indigo dye, rubber and herbal compress. We proposed the easy method for solving these problems by using the smart technology and innovation. The coaching system is very important for the community research group [1 – 5] and grant project for improving Sakon Nakhon province community life problems. We are community members of technology and innovation research group from the faculty of science and technology, technology industry, management science, education and center of excellence on alternative energy (CEAE). We are experts in different fields to develop innovation of supplier, retailer and more useful for the quality of life in Sakon Nakhon province communities. The innovation and knowledge were integrated the science & technology & art & engineering & mathematics (STAEM) for young scientists of in the high schools of Sakon Nakhon Province.

The One‐Cycle Control (OCC) has the ability to operate in line disturbance rejection and provide a faster dynamic response. However, when used as a controller in dc−dc converters, it might contribute to steady‐state error. Furthermore, the non−ideal circuit components may cause a duty cycle error due to the error of converter output voltage. We proposed a new technique to address the error in OCC by using the technique of an outer loop filter based on OCC, called Outer Loop Filter for improvement of One‐Cycle Control (OLF−OCC). This technique maintains a constant output voltage, despite power source voltage perturbation and error from the control circuit, such as circuit integrator voltage slope or input voltage offset. Variation results show that the performance of the proposed technique is more effective and reliable than the traditional approach when compared to the experimental state. OLF–OCC performance is discussed in terms of variation of power source voltage or internal disturbance from the control, such as circuit integrator voltage slope or input voltage offset. © 2018 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.