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Decolorization by Catalytic Ozonation USING Mn(II) Fe(II) and Fe(III)
No full textThe textile industry holds significant importance in Thailand. It has been estimated that 10-20% of dyes are lost during the dyeing process and subsequently released into wastewater. The high concentration of non-biodegradable substances in these wastewaters makes them challenging to treat using conventional methods. Therefore, this study aimed to assess the effectiveness of a catalytic ozonation process employing Mn(II), Fe(II), and Fe(III) for treating synthetic dye wastewater. The study also sought to optimize operational parameters such as pH and contact time. Both with and without catalytic ozonation, experiments were conducted in a batch reactor with a consistent ozone flow rate of 6 g/hr. Under the non-catalytic ozonation conditions, it was observed that more than 90% of decolorization occurred within 15 minutes at a pH of 9. The ozonation of the dye followed a first-order reaction mechanism at room temperature, with a rate constant (k) of 0.18 min-1. The catalytic ozonation used a concentration of 1.2 mM of Mn(II) was showed color removal of 90% in 8 min. For catalytic ozonation used Fe(II) and Fe(III) with concentrations of 0.6 mM showed color removal of 90% in 10 min. The highest rate constant (k) showed 0.29 min-1 for Mn(II) and 0.21 min-1 for Fe(II) and Fe(III). In conclusion, the study found that the inclusion of a catalyst substantially enhanced the degradation efficiency of the dye compared to ozonation without a catalyst
Digital Perception on Changes Experienced in Modern Banking Services Perceptional Study in Salem City
No full textThe adoption of new technology to provide digital banking to enhance ease of use, transaction speed and an improved overall experience is essential for banking institutions to remain competitive both locally, and internationally. The digitalization of banking has revolutionized banking operations and practices. In India specifically, banking services have changed dramatically since the economic liberalization of 1991, but particularly over the last decade with rapid adoption of technology with the aim of improved operational and administrative efficiency. This study aims to evaluate the perception amongst customers and bankers in the Southern Indian city of Salem, on the changes experienced in banking services vis-a-vis adoption of technology and the issues faced in this regard its relationship to customer (and Banker) demographics.  
Predicting ICT Students’ Profile Using AI and Social Network for a Post Pandemic Classroom
No full textThe study investigates the impact of the COVID-19 crisis on education, focusing on computer science graduates and the importance of Information and Communication Technology (ICT) skills aligned with job expectations. Employing a questionnaire-based approach and data mining algorithms, the research assesses students' self-reported ICT skills post-pandemic. Findings indicate students generally possess fundamental ICT skills but exhibit areas for improvement. The study emphasizes addressing gaps in graduates' profiles to enhance skillsets and adapt university curricula. Practical implications highlight the need to prepare students for the evolving workforce, and the research contributes to literature by enriching understanding of post-COVID-19 education. The approach, combining questionnaires and data mining, offers valuable insights for assessing and predicting students' skills in a post-pandemic context. This research serves as a foundation for adapting teaching strategies and curricula to meet evolving learner requirements
Behavior Analysis of Highway Rigid Pavement on Clay Soil with Beam on Elastic Foundation Approach
No full textAn important consideration in designing road infrastructure is the study of the behavior of rigid pavement structures and subsurface soils. Vehicle loads received by the rigid pavement are transferred to the soil which provides the required response and bearing capacity. To examine this problem the beam on elastic foundation (BoEF) approach can be used. The purpose of this research is to identify and assess the relationship between pavement stiffness and the soil that supports it. The object of this research is Solo Yogyakarta - NYIA Kulonprogo Toll Road section 1 STA 2+949 to STA 2+973. The pavement is modeled as a finite element resting on a series of springs that represent the characteristics of the subgrade soil. The structural analysis results show that the pavement should be designed with appropriate thickness and sufficient elastic modulus to withstand various traffic loads. In addition, an understanding of pavement deformation and soil response to loads is essential in minimizing road damage
Molecular Dynamics Simulation of Thermal Conductivity and Vibrational Density of States of Cadmium Telluride
No full textThis study aims to calculate the thermal conductivity and vibrational density of states of CdTe using MD simulation. The lengths of CdTe varied from 10 nm, 20 nm, 30 nm, 40 nm, and 50 nm, with fixed width and height of 10 nm at room temperature (300 K). The results show the decrease of thermal conductivity as a function of length due to phonon-phonon interaction. The width varied from 10 nm, 20 nm, 30 nm, 40 nm, and 50 nm at room temperature (300 K) with a fixed length and height of 10 nm. Similarly, the height varied from 10 nm, 20 nm, 30 nm, 40 nm, and 50 nm with fixed length and width at room temperature (300 K). It was found that the phonon spread less in the boundaries of the mean free path which follows the creation processes resulting to the decrease of thermal conductivity. The temperatures varied from 50 K, 75 K, 100 K, 300 K, 500 K, 700 K, 900 K, 1,000 K, and 1,365 K with fixed dimensions of 50 nm in length, 50 nm in width, and 50 nm in height. As observed, the thermal conductivity decreases with a further increase in temperature. There were four major peaks found in the vibrational density of states of cadmium telluride: ~1.3 THz and ~3.5 THz which corresponds to transverse and longitudinal acoustic modes, ~4.5 THz and ~5 THz which corresponds to transverse and longitudinal optical modes
Analysis the Poverty Level in Jambi Province, Indonesia
Get PDFThis research has purposed: 1) Revealing and analyze those impact from original local government revenue towards the poverty level in Jambi Province; 2) Discovered and analyze those impact from economic growth towards poverty level in Jambi Province; 3) Determined and analyze those simultaneously impact from original local government revenue and economic growth towards the poverty level in Jambi Province. These research analysis techniques used was multiple linear regression analysis by compared to the result of data panel analysis. According to the results from partial and simultaneous tests it said that original local government revenue and economic growth variables both individually or simultaneously have a significant affect towards the poverty level in Jambi Province. These panel data analysis results found if the Human development index, Economic growth and Educational level in Jambi has a significant affect towards the poverty level in Jambi Province
Enhancing Competence in Preventing Childhood Diseases for Preschool Teachers in Vietnam
No full textThis study aims to evaluate the current competence of preschool teachers in preventing childhood diseases in Vietnam and provide recommendations for their development in effectively addressing these issues. The research employed consulting methods, including telephone and email consultations, as well as a Google Form questionnaire. The questionnaire utilized a 5-level rating scale (Good, Fair, Average, Weak, Poor). The study involved 25 administrators (Education and Training officers, Kindergarten Principals, and Vice Principals) and 118 preschool teachers from Lao Cai city, Lao Cai province. The research was conducted from April 2021 to November 2021.
Results of the study revealed several limitations in the current ability of preschool teachers to prevent childhood diseases in the study area. These limitations included inadequate competence among certain members of the Board of Education and management staff, particularly the principals. Furthermore, there was incomplete awareness among some management staff and teachers regarding the significance of fostering skills in preventing contagious diseases among Kindergarten teachers. The training activities related to preventing contagious diseases in children for Kindergarten teachers in Lao Cai city and province were also found to be inadequate. The schools predominantly followed an experiential approach rather than a systematic one. Based on the research findings, the study team proposes recommendations for enhancing the competence of preschool teachers in preventing childhood diseases
The Effects of Adolescents' Perceived Handwashing Attitudes, Health Beliefs, and Internal Control on Handwashing Practices in the COVID-19 Pandemic Situation
No full textThis study aims to provide basic data for developing a hand washing education program to prevent infection by identifying the factors that affect hand washing practice for high school students who need to establish healthy lifestyles in the COVID-19 outbreak situation. Data collection was conducted from December 10 to 31, 2020 for 149 in high school students. The collected data were analyzed using the SPSS 20.0 program. As a result, internal control(p<.05) and hand washing attitude(p<.05) had a significant effect on dependent variables. the result of this study indicates that the internal control means a tendency to attribute the cause or effect of an action to internal factors, such as ability, attitude, and effort of one’s own, educational plans that can increase the hand washing practice rate by cultivating a positive hand washing attitude and improving internal control through education on the importance of personal quarantine should be prepared
Breast Cancer Image Semantic Segmentation with Attention U-Net
Get PDFSemantic segmentation is to segment objects in an image into meaningful units. Among them, the basic idea of U-Net is to use low-dimensional as well as high-dimensional information to extract image features and enable accurate location identification. In this paper, we present a new model that combines Attention Gates with U-Net and evaluate the results through semantic segmentation with breast cancer datasets. To this end, this study proposes and tests a methodology for breast cancer image segmentation based on Attention U-Net. In conclusion, when comparing the performance with the existing U-Net, It can be seen that IoU is 0.069 higher than the existing U-Net. Thus, the proposed model enables better image semantic segmentation
Epidemiology of Hepatitis B-virus in Nineveh province: Retrospective Study
No full textThe purpose of the study was to determine the incidence and epidemiology of the ten-year hepatitis B virus type (2011-2020).The province of Nineveh's hepatitis (B) prevalence was calculated using a retrospective analysis. The study's time frame is (2011 2020). The data collection mechanism was adopted by the Nineveh Health Department, the public sector, the Communicable Diseases Unit, through the records in the unit, for a period of ten years, from 2011 to 2020.The age, sex, residence and occupation of the infected were determined, and those infected with hepatitis B virus. For the analysis of the data "frequency, percentage" descriptive and inferential statistical methods were used.The study's findings revealed that the proportion of men was approximately (70.892%) larger than that of women, and that the age range with the highest viral hepatitis infection rates was between (1-60) and by (34.978%). The average age was (52.2+2.65).This study concluded that the infection rate among the elderly was much higher than that of children and adults. The reason is that elderly people have much lower immunity than adults, so they are more susceptible