International Journal of Membrane Science and Technology最新文献

{"title":"Empirical Study of Sustainable E-Commerce Adoption by Small and Medium-Sized Enterprises in Vietnam","authors":"Chu Ba Quyet, Phung Viet Ha","doi":"10.15379/ijmst.v11i1.3604","DOIUrl":"https://doi.org/10.15379/ijmst.v11i1.3604","url":null,"abstract":"E-commerce has been adopted by businesses and consumers in Vietnam for consumption activities, profit-seeking, buying and selling goods, conducting business, competing, and expanding markets. Businesses have chosen e-commerce due to its benefits, the trend of applying digital technology, and the ongoing modern business environment. Many previous studies have identified factors influencing the acceptance of e-commerce, but only some studies have approached sustainable e-commerce. Developing sustainable e-commerce requires businesses to invest more money and technology in business processes, which consumers may only sometimes accept. This article applies the TOE framework to identify factors influencing the acceptance of sustainable e-commerce by measuring the importance coefficient of these factors. The research results reflect changes in the factors affecting the acceptance of sustainable e-commerce. The study also provides recommendations for stakeholders involved in developing sustainable e-commerce.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"133 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140369846","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Robust Design Applying Taguchi’s Orthogonal Matrices to Determine the Optimal Work Parameters in The Fruit Dehydration Process in A Solar-Gas Hybrid Dehydration Equipment Under Environmental Conditions at 2800 MASL","authors":"Edison Gustavo Tapia Zurita, Melton Edmundo Tapia Zurita","doi":"10.15379/ijmst.v11i1.3586","DOIUrl":"https://doi.org/10.15379/ijmst.v11i1.3586","url":null,"abstract":"In this research work, a prototype dehydrator Solar-gas was designed and manufactured in order to dehydrate tropical fruits under ambient conditions at 2800 MASL.  This equipment requires the development of study of parameter variation to determine the most optimal ones under these altitude conditions to which the Taguchi orthogonal matrices have been applied, varying at two levels the different parameters involved such as temperature, relative humidity, mass of product to be processed, product distribution within the equipment. By using this equation, the best combination of them was determined to achieve an efficient process and adequate dehydration. Validation of effectiveness is carried out by determining the homogeneity of the dehydrated product.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":" 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140386965","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect Of the Disclosure of Corporate Social Responsibility Practices on The Financial Value of The Companies Listed on The Colombian Stock Exchange","authors":"Eduardo Duque-Grisales, Miguel A. Becerra, Jorge Acosta Strobel, Leandro Bermudez","doi":"10.15379/ijmst.v11i1.3582","DOIUrl":"https://doi.org/10.15379/ijmst.v11i1.3582","url":null,"abstract":"This research project intends to analyze the financial effects caused by the implementation of Corporate Social Responsibility (CSR) in companies, and the shareholders’ perspective regarding the disclosure of these practices in the stock market. The Colombian Stock Exchange (BVC) market’s reaction was studied, using as a reference 20 companies included in the COLCAP index. The influence of this CSR-type announcements published in important local newspapers was analyzed. The results show that the social practices developed by the Colombian companies listed on the BVC have a positive relationship with financial performance; this fact is evidenced by the change in the share price.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":" 30","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140221485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Community-Based Payment for Forest Environmental Services: A Study in Vietnam","authors":"Nguyen Minh Duc, Do Thi Diep, Do Thi Thanh Huyen","doi":"10.15379/ijmst.v11i1.3583","DOIUrl":"https://doi.org/10.15379/ijmst.v11i1.3583","url":null,"abstract":"The implementation of the Payment for Forest Environmental Services (PFES) strategy is increasingly being adopted through community-based initiatives globally. Nonetheless, the comprehension of such community-based PFES remains considerably limited. This investigation delves into the community-based PFES, scrutinizing the impact of local community involvement in PFES financial management mechanisms on the efficacy of this policy at the community level. Conducted in Dien Bien province, Vietnam, this study employed Participatory Rural Appraisal (PRA) techniques alongside household surveys. The findings indicate that the community-based PFES is operational with efficacy. It engenders motivation and fosters communal engagement in concerted forest conservation endeavors. Moreover, the pillars of self-administration, equitable distribution of benefits, and robust oversight are pivotal in determining the triumph of this policy approach.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":" 20","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140221135","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Theoretical Modeling of a Beam with Variable Section and Finite Rigidity in A Fatigue Testing Machine to Verify the Bending Moment Produced in The Central Portion of The Smallest Diameter of The Beam Subjected to External Loads","authors":"Edison Gustavo Tapia Zurita, José Emilio Pérez Rosales","doi":"10.15379/ijmst.v11i1.3574","DOIUrl":"https://doi.org/10.15379/ijmst.v11i1.3574","url":null,"abstract":"There is a bending fatigue machine where it is detected that when loads are applied, the theoretical model of the beam with which the machine was designed to obtain the bending moment does not coincide with the real measurements of the bending moment obtained experimentally and the specimen does not break, to determine the correct theoretical modeling applicable to this fatigue machine, the following static models are proposed, and the theoretical results are obtained through computer simulation.  The bending moment values ??produced by the applied loads are verified with measurements through the Hooke and Navier law using strain gages, the analysis of the different modeling is carried out and those that are closest to the real model obtained experimentally are analyzed","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"156 4‐6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140228422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Applying Artificial Intelligence to Support the Detection and Treatment of Melasma","authors":"Van Lam Ho, Vu Tuan Anh, Tran Xuan Viet","doi":"10.15379/ijmst.v11i1.3568","DOIUrl":"https://doi.org/10.15379/ijmst.v11i1.3568","url":null,"abstract":"This study, we propose a solution to apply artificial intelligence to assist in detecting whether a person may have melasma or not through data sets related to information about a person's daily activities, then If we detect a person with a high likelihood of having melasma, we will apply machine learning to diagnose the type of melasma through a photo taken of that person. Through a machine learning model of predicting and diagnosing a person's melasma, we also suggest relevant prevention and treatment options based on the disease's prevention and treatment regimen. Our method build predict Melasma model based on Catboost machine learning algorithm on users' data combined with medical practice data commu-nity by dermatologists to predict the disease and make some necessary recommendations in the patient screening. Based on our dataset, we have statistically described the data characteristics as well as the correlated data parameters that may cause Melasma. The method using for diagnosing melasma disease based on machine learning algorithms with input data being facial images. we built a machine learning model for diagnosing melasma to detect melasma objects to support dermatologists in predicting the risk of melasma in a person after entering his/her facial image. Our dataset of facial images combined with the expertise of melasma experts to classify different types of melasma. We used YOLO V8 with machine learning algorithms to detect melasma objects to build a diagnostic model for whether a patient has melasma and with which type of melasma such as central melasma, butterfly-shaped melasma, or mandibular melasma.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140241927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Innovative Formulations for Building Construction Bricks: Integration of Marble Dust and Lime as Alternatives to Clay for Improved Construction Brick Fabrication","authors":"Adnan Qadir, Naheed Akhtar, Nasrumin Allah, Muhammad Farhan Aslam, Salman Khan","doi":"10.15379/ijmst.v11i1.3567","DOIUrl":"https://doi.org/10.15379/ijmst.v11i1.3567","url":null,"abstract":"This research offers a comprehensive examination of the production of bricks with leftover powdered marble and lime as eco-friendly materials. Different replacement percentages of leftover marble powder and lime (3%, 6%, 9%, and 12%) were applied to the soil to create bricks. Through a series of laboratory experiments, including compression tests, heat transfer tests, and scanning electron microscope (SEM) evaluations, the mechanical, thermal, and microstructural characteristics of the bricks produced were carefully evaluated. Bricks with increasing percentages of waste marble powder and lime replacement were found to have significantly changed physical, mechanical, and microstructural qualities. The findings offer valuable insights into the potential use of leftover marble powder and lime as environmentally friendly additives in brick manufacturing, with a focus on opportunities to enhance both sustainability and usability.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"23 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140242674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Problem-Based Learning and Academic Performance in Medical Technology at A Peruvian Public University","authors":"Ysrael Alberto Martínez Contreras, M. Vásquez-Pauca, Lourdes Marlene Yaque Rueda, José Fernando Vásquez Herrera, Dennis Geiner Méndez Díaz, Oscar Omar Alcázar Aguilar","doi":"10.15379/ijmst.v11i1.3566","DOIUrl":"https://doi.org/10.15379/ijmst.v11i1.3566","url":null,"abstract":"Introduction: Problem-based learning is a didactic strategy that induces autonomous, meaningful, cooperative, and collaborative learning in students. Objective: To describe the relationship between the didactic strategy of Problem-Based Learning and the academic performance of Radiodiagnosis at the School of Medical Technology at the Universidad Nacional Mayor de San Marcos. Methods: A pedagogical research was conducted at the undergraduate level, of a descriptive type. The universe consisted of 144 students belonging to the Professional School of Medical Technology in the Radiology area of the Universidad Nacional Mayor de San Marcos, who were taking all the subjects, and the sample consisted of 30 students from the Radiodiagnosis subject. Theoretical and empirical methods were applied. To obtain the information, a survey was conducted, following informed consent. Results: The 43.3% have a good evaluation of problem management through the PBL method; 33.3% have a good evaluation of problem orientation and solution search; 36.7% have a good evaluation of team problem-solving; 63.3% have a good evaluation of the integration of previous knowledge; 30.0% have a good evaluation of conclusions in problem-solving; 56.7% have a good evaluation of the PBL method; 43.3% have good academic performance; 60.0% have a good learning category. Conclusion: There are potentials in problem-based learning in the Radiodiagnosis subject among students.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"23 S2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140243139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Digitalisation of Elitism and Sifting? Observations on the Online Registration of First-Year University Students in KwaZulu-Natal, South Africa","authors":"Lungile Prudence. Zondi, Stanley Osezua Ehiane, Hlabathi Maapola-Thobejane, Nkanyiso Nkazimulo Mkhize, Zukiswa Roboji","doi":"10.15379/ijmst.v11i1.3563","DOIUrl":"https://doi.org/10.15379/ijmst.v11i1.3563","url":null,"abstract":"This paper argues that the digitalisation of university registration processes has given rise to concealed elitism. The phenomenon became apparent during the COVID-19 pandemic, as elite students accessed advanced medical care and education degrees while individuals from indigent families and rural communities bore the brunt of the pandemic. Drawing from the perspectives of critical emancipatory research (CER), the observational study described in this paper sought to explain students' experiences during the transition to digitalised registration processes and to identify practical solutions for the deficiencies in the new system, ensuring inclusivity for all students in the future. This observational study did not have a specific sample size but observed the groups of incoming first-year students gathered outside many university gates during the registration period in the province of KwaZulu-Natal, South Africa. The study consequently concluded that many universities in KwaZulu-Natal are not prepared for digitalisation of student applications for several reasons: (i) the use of technology conceals elitism, a lingering aspect of the apartheid era that disenfranchises students from indigent and rural communities; (ii) universities lack reliable infrastructure, as they were not initially designed for contemporary communication and teaching methods; and (iii) the rise of technological innovation destabilises the intentions of our South African democracy and the massification agenda. This paper proposes a dual method of communication (virtual and walk-in inquiries) that would accommodate democracy and recognise people's right to education. This approach would ensure that students from different socio-economic backgrounds are accommodated in higher education institutions. The paper recommends technological innovations that do not remind black and poor students that they were once marginalised from accessing tertiary education due to systems that were not favourable to them.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"87 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140250802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Designing a Reliability Maintenance Plan for Refinery Plants: A Case Study of a Nigerian-Based Refinery and its Power Systems","authors":"Uchechukwu Emmanuel Nnaebue","doi":"10.15379/ijmst.v11i1.3561","DOIUrl":"https://doi.org/10.15379/ijmst.v11i1.3561","url":null,"abstract":"This study developed a comprehensive and effective reliability maintenance plan for refinery plants. Using a Refinery based in Nigeria as a case study, the research identified key factors affecting the reliability of refinery operations and proposed strategic maintenance measures to enhance operational efficiency and safety. The study utilized reliability centered maintenance (RCM) and failure modes and effect analysis (FMEA). From the evaluation, breaking down the components of the power system in the plant and addressing them individually exposes more vividly the errors in that system. Each failure mode was analyzed in terms of possible consequences on operation, function, or system status. The subject of risk assessment was presented and utilized to develop an approach for implementing the RCM in refinery power systems Finally, a proposed action plan was introduced to reduce the RPN number, thereby increasing the overall reliability and efficiency of the system component. It was observed that by reducing the RPN of each component, the overall efficiency of that component increases saving the company huge maintenance cost.","PeriodicalId":301862,"journal":{"name":"International Journal of Membrane Science and Technology","volume":"54 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140251106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}