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Development of a Capacitive Sensing Module to Detect the Concentration of Isopropyl Alcohol for Covid-19 Disinfection Using Small Capacitance to DC Converter
(2024-01-01)
Sriratana, Witsarut
;
Faijaree, Manasnit
;
Sriratana, Lerdlekha
;
Satthamsakul, Sutham
This paper presents the development of a sensing module for analyzing the concentration of disinfectant alcohol commercially available in Thailand during the Covid-19 epidemic situation to ensure the ingredients and percentage concentration by focusing on simplicity, low cost with reliable performance. Under the basic physical structure of the capacitance change [1]-[5], it consists of a New Sensor Module developed to fully interface with the small capacitance to DC converter for capacitive sensor [2] model. Inside the sensing structure, there were 2 modules of metal conductors. Each conductor was 3 mm. thick, placed in parallel with a fixed distance between the module of 1 mm. The cross-sectional areas of the plates of those two modules were different in order to compare the efficiency of the detector developed. The cross-sectional areas of the plates of Module A and B were 4 cm<sup>2</sup> and 1 cm<sup>2</sup>, respectively. Experiments were performed with 3 concentrations of alcohol, 65%, 70% and 75%, to enhance the concentration detecting performance of the sensing module developed. The signal conditioning was generated from a small capacitance to DC converter for capacitive detection with a frequency of 100 kHz, which was the most suitable frequency for exciting the capacitance change which was the capacitive reactance of the alcohol used in this study. From experiments, it was found that the sensing module with a small cross-sectional conductive material would provide more accurate results in terms of linearity and repeatability. The errors were less than 2.72% compared to the module with a large cross-sectional conductor material which would have an error up to 4.73%.
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GUIDELINES FOR DRIVING BUSINESS SECTOR INTO DIGITAL TRANSACTIONS FOR BUSINESS SURVIVAL: A CASE STUDY OF THE IMPACT OF COVID-19 TO SMES BUSINESS IN THAILAND
(2022-12-21)
Phimolsathien, T.
The purposes of this research are to study SMEs’ level of digital literacy for digital financial transactions and the level of impact of digital transactions on SMEs’ business transactions and to investigate the effect of digital literacy and competence for digital transactions on the impact of digital transactions on SMEs’ business operations. Employing questionnaires and interviews as tools, the research finds that overall digital literacy, competence and capability are perceived to be at mid-level. The impact of digital transactions on SMEs businesses is high, while the overall impact of the COVID-19 pandemic situation on SMEs businesses is at the highest level. Moreover, the research finds that digital literacy, competence, capability, and digital transaction literacy influence the impact of digital transactions on SMEs’ business operations. Altogether, they can forecast 40.7 % of the impact. Digital transaction literacy, digital competence and capability influence the impact of the COVID-19 pandemic situation. Altogether, they can forecast 61.6 % of the impact. The research proposes four ways to encourage SMEs to adopt digital transactions for business continuity: 1) promotion of SMEs’ literacy for digital financial management 2) promotion of the development of digital innovation for financial transactions, including a support system and updates 3) promotion of data analysis and management technology 4) legal overhaul of agencies overseeing financial institutions.
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Implementation of Hardship Principles on Financing Agreements Islamic Bank Due to Corona Virus Disease 2019
(2022-01-01)
Sinilele, Ashar
;
Suriyadi
;
Alim, Syahrul
Introduction to The Problem: This research analyzes covid-19, designated a disaster by the Indonesian government, especially its correlation to finance agreements in Islamic banks. The determination of disaster raises the question of whether covid-19 is a force majeure or hardship. According to Financial Service Authority (OJK), non-performing financing in Islamic banks is increased. Implementation of Force majeure principle to finance agreement in Islamic bank as a government policy is not right decision. Purpose/Objective Study: this legal research aims to analyze the effects of the coronavirus disease 2019 on finance agreements in Islamic banks and how is the implementation due covid-19 to renegotiation of finance agreement force majeure principle or hardship principle. Design/Methodology/Approach: This legal research is a normative legal study with two approaches: statute and conceptual approaches. Primary sources from Finance agreements in Islamic banks and statutes/rules. Secondary sources are books, journals, research, and dictionary. The legal analysis is carried out by classification of primary and secondary sources using the statute and conceptual approaches. Findings: The spread of the covid-19 virus has had many impacts on the ability of Islamic bank debtors to carry out their achievements due to the difficult conditions experienced due to restrictions by the government. The determination of the status of covid-19 as a disaster has implications for the occurrence of forced circumstances, so it is necessary to make adjustments to the situation based on the principle of hardship for financing agreements with Islamic banks. The occurrence of hardship for sharia bank customers provides an opportunity for customers to apply for contract renegotiation in the context of adjusting problematic contracts in the form of rescheduling, reconditioning, or restructuring.

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