International Journal of Material and Mathematical Sciences最新文献

A Study on Modeling Financial Mathematics by Computational Program and Its Applications 计算程序金融数学建模及其应用研究

International Journal of Material and Mathematical Sciences Pub Date : 2024-07-01 DOI: 10.34104/ijmms.024.01000111

{"title":"A Study on Modeling Financial Mathematics by Computational Program and Its Applications","authors":"","doi":"10.34104/ijmms.024.01000111","DOIUrl":"https://doi.org/10.34104/ijmms.024.01000111","url":null,"abstract":"Financial mathematics plays a pivotal role in various aspects of modern economics and finance. This paper provides an introduction to the fundamental concepts, theories, and applications of financial mathematics. It begins by outlining the basic principles of financial mathematics, including the time value of money, interest rates, and compounding. Computational programs enhance these mathematical models, offering robust solutions and efficient computation for complex financial problems. This study explores the integration of computational programs with financial mathematics, their methodologies, and applications in the finance sector. The results underscore the significance of computational methods in improving the accuracy, speed, and scalability of financial models, ultimately contributing to better decision-making and risk management. We explore fundamental concepts, models, and techniques employed in financial mathematics, aiming to provide a comprehensive understanding of their applications and significance in real-world financial scenarios. This paper provides a comprehensive overview of the application of differential equations in financial mathematics, highlighting key models such as the Black-Scholes model, interest rate models, and optimal investment strategies.","PeriodicalId":220610,"journal":{"name":"International Journal of Material and Mathematical Sciences","volume":"97 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141712158","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}

引用次数: 0

Attitude and Challenges in Learning Mathematics in the Modern Word (MMW): Basis for Intervention Program 学习现代数学（MMW）的态度和挑战：干预计划的基础

International Journal of Material and Mathematical Sciences Pub Date : 2024-06-04 DOI: 10.34104/ijmms.024.085099

{"title":"Attitude and Challenges in Learning Mathematics in the Modern Word (MMW): Basis for Intervention Program","authors":"","doi":"10.34104/ijmms.024.085099","DOIUrl":"https://doi.org/10.34104/ijmms.024.085099","url":null,"abstract":"Difficulty in learning mathematics is a common and significant problem throughout the school years. It was identified that only 19% of Filipino students met the Low benchmark, meaning they had “some basic mathematical knowledge,” while 81% did not reach this level. Filipino students also lagged behind other countries in the international assessment for mathematics as mentioned in the Trends in International Mathematics and Science Study 2019 (TIMSS).To address this; a researcher conducted a study to explore students’ attitudes and challenges in learning Mathematics in the Modern World (MMW). The data gathered were used in formulating intervention programs. The study utilized the descriptive method of research and employed a survey questionnaire as the main data-gathering instrument. It involved the participation of all college students from the University of Batangas who were taking Mathematics in the Modern World (MMW) during the school year 2022-2023 using a purposive sampling technique. Furthermore, the responses of the respondents were computed using frequency count, percentage, weighted mean, ranking, and chi-square as the main statistical treatments of data. Ethical guidelines were highly considered to maintain the confidentiality of the study. Key findings include that the majority of the students are 19-21 years old, male, and enrolled in Criminology courses. Students strongly agreed and exhibited a positive attitude toward wanting to develop their mathematical skills. It was observed that there is a positive and moderate correlation between the attitude and the challenges encountered by the students in learning Mathematics in the Modern World (MMW). The main challenge identified is the difficulty in remembering math facts, concepts, rules, formulas, sequences, and procedures. The researcher proposed different intervention programs to address the challenges encountered by students in learning Mathematics in the Modern World (MMW).","PeriodicalId":220610,"journal":{"name":"International Journal of Material and Mathematical Sciences","volume":"10 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141266396","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}

引用次数: 0

Application of Perturbation Method to Approximate the Solutions of Differential Equation 应用扰动法逼近微分方程的解

International Journal of Material and Mathematical Sciences Pub Date : 2024-05-10 DOI: 10.34104/ijmms.024.062077

引用次数: 0

International Journal of Material and Mathematical Sciences Pub Date : 2024-05-04 DOI: 10.34104/ijmms.023.048061

引用次数: 0

Dielectric Relaxation and Thermal Stability of Epoxy/Polyurethane -Carbon Nanofiber Composites 环氧树脂/聚氨酯-碳纳米纤维复合材料的介电弛豫和热稳定性

International Journal of Material and Mathematical Sciences Pub Date : 2024-05-01 DOI: 10.34104/ijmms.024.038047

{"title":"Dielectric Relaxation and Thermal Stability of Epoxy/Polyurethane -Carbon Nanofiber Composites","authors":"","doi":"10.34104/ijmms.024.038047","DOIUrl":"https://doi.org/10.34104/ijmms.024.038047","url":null,"abstract":"The main purpose of this study is to improve the dielectric relaxation properties and thermal stability of epoxy/ polyurethane blend by dispersing carbon nanofibers, the EP/PU-CNF’s was fabricated by dispersing a weight fraction of (10%) of the CNF’s into EP/PU blend. The data of AC conductivity have been analyzed in the light of the correlated barrier hopping model (CBH) and percolation theorem. The dielectric measurements were carried out for all samples over the frequency range of (102-107) Hz and over temperature range of (293-463) K0. It is found that all samples displayed a wide dielectric dispersion, thus the values for dielectric constant and dissipation factor give a direct evidence of Debye relaxation existence which leaving a wide distribution of relaxation time. Eyring’s relaxation rate equation have been used to determine the thermodynamic parameters (Gibbs free energy of activations (ΔG), and entropy (ΔS)). The results (ΔG), and (ΔS) reviles a strong intermolecular interaction in all tested samples. The glass transition temperature (Tg) values were exhibited by deferential thermal analysis (DTA) and estimated by dielectric measurements (DM). The thermal stability of EP/PU blend and EP/PU-CNF’s composite was evaluated by thermal gravimetric analysis (TG) and deferential thermal gravimetric analysis (DTG), the results showed that the carbon nanofibers improve the thermal stability of the composite, hence the char yield at a temperature greater than (700) C0 reached to (31.08) %, while it is only (8.4) % for the EP/PU- blend.","PeriodicalId":220610,"journal":{"name":"International Journal of Material and Mathematical Sciences","volume":"18 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141048017","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}

引用次数: 0

Optimizing Rice Milling in Bangladesh: A Comprehensive Analysis of Semi-Automatic Processes with Modern Machinery 优化孟加拉国的碾米工艺：利用现代机械全面分析半自动流程

International Journal of Material and Mathematical Sciences Pub Date : 2024-02-24 DOI: 10.34104/ijmms.024.05013

{"title":"Optimizing Rice Milling in Bangladesh: A Comprehensive Analysis of Semi-Automatic Processes with Modern Machinery","authors":"","doi":"10.34104/ijmms.024.05013","DOIUrl":"https://doi.org/10.34104/ijmms.024.05013","url":null,"abstract":"This study investigates the inclusion of modern machinery into the rice milling process in Bangladesh. The investigation spanned three districts-Dinajpur, Kushtia, and Mymensingh. Data collection involved personal interviews employing semi-structured questionnaires and Focus Group Discussions, covering aspects such as mill types, ownership status, existing products, milling machinery varieties, and the total commissioning cost of mills/sections. Employing a primary descriptive statistical method, the study aimed to assess the current status of rice milling, specifically semi-automated processes utilizing modern machinery, focusing on type, capacity, and technological aspects. The research revealed milling costs for semi-automatic operations without modern equipment at Tk.2954 and those with modern equipment at Tk.3460. Whole rice recovery rates were 66.25% and 64.75%, respectively. Semi-automatic rice mills exhibited a capacity range of 1.15-1.75 t/h, with a utilization rate of 40%. The estimated benefit-cost ratios (BCRs) were higher for semi-automatic mills, both with and without modern equipment, at 1.48 and 1.64, respectively. Staff requirements for semi-automatic operations without modern equipment and those with modern equipment were reported as 9.13 and 4.50 person-hours per ton of paddy processing, respectively. These findings serve as a valuable foundation for making well-informed decisions and offering guidance to policymakers, industry stakeholders, and entrepreneurs in optimizing the benefits of automation for sustainable and competitive rice production in Bangladesh.","PeriodicalId":220610,"journal":{"name":"International Journal of Material and Mathematical Sciences","volume":"7 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140434933","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}

引用次数: 0

Generalization and Cogitation of Leibniz Derivative Rule 莱布尼兹导数法则的推广与思考

International Journal of Material and Mathematical Sciences Pub Date : 2024-01-29 DOI: 10.34104/ijmms.024.0104

引用次数: 0

Hermetic Bag: A Farmers Friendly Paddy Storage Technology in Bangladesh 密封袋：孟加拉国农民友好型稻谷储存技术

International Journal of Material and Mathematical Sciences Pub Date : 2023-11-27 DOI: 10.34104/ijmms.023.052059

{"title":"Hermetic Bag: A Farmers Friendly Paddy Storage Technology in Bangladesh","authors":"","doi":"10.34104/ijmms.023.052059","DOIUrl":"https://doi.org/10.34104/ijmms.023.052059","url":null,"abstract":"In Bangladesh, most of the farm households store paddy to meet their own consumption, facing emergency needs and seeds for the next sowing season in traditional storage technologies which susceptible to insect, rodent and mold. Training and Focus Group Discussion (FGD) were conducted to disseminate hermetic (PICS and GrainPro) bag at Mymensingh and Jashore regions. The participants learned the use of moisture meter in paddy drying and safe storage. Pedagogical approach was followed in the FGD among 100 farmers of different age with their spouse. Farmers’ perception about these bags was also taken. Traditional storage technologies namely, Dole, Motka, Guny Bag, Bamboo Gola, Dhari, Bamboo Auri, and Berh were identified which are not durable or functional in Bangladesh. Among these, Dole and Plastic Bag for consumption, and Motka and Plastic Drum were found suitable for paddy seed storage. Women taught to neighbors about the operation of moisture meter and HB. About 87, 13% farmers prefer 10-20 and 40-50 kg size HB in Mymensingh while 82 and 18% farmers of Jashore prefer corresponding sizes of bags for seed purposes. For sale and consumption purposes, about 40, 35 and 20% farmer preferred 500, 1000 and 2000 kg size HB in Mymensingh. On the contrary, about 26, 38 and 36% farmers prefer same size of HB in Jashore. Farmer shown keen interest about HB and concerned of its high price. They opined price of 40-50 and 500-2000 kg size HB should be within Tk. 20 and Tk. 200, respectively. Both female and male farmers can store paddy in it properly. Price of hermetic bag is high, ranked as no. 1 problem followed by its availability in different sizes locally. However, HB was found effective in paddy storage in Bangladesh.","PeriodicalId":220610,"journal":{"name":"International Journal of Material and Mathematical Sciences","volume":"28 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139231655","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}

引用次数: 0

Magnetohydrodynamic Effects on the Flow of Nanofluids Across a Convectively Heated Inclined Plate Through a Porous Medium with a Convective Boundary Layer 带对流边界层的多孔介质中穿过对流加热斜板的纳米流体流动的磁流体动力学效应

International Journal of Material and Mathematical Sciences Pub Date : 2023-10-30 DOI: 10.34104/ijmms.023.041051

E. Esekhaigbe, U. Uka, Alex Musa

引用次数: 0

Techniques, Methods, and Analysis of Text Mining: A Review 文本挖掘的技术、方法和分析综述

International Journal of Material and Mathematical Sciences Pub Date : 2023-10-07 DOI: 10.34104/ijmms.023.034040

{"title":"Techniques, Methods, and Analysis of Text Mining: A Review","authors":"","doi":"10.34104/ijmms.023.034040","DOIUrl":"https://doi.org/10.34104/ijmms.023.034040","url":null,"abstract":"Recent technological advances have led to the availability of new types of observations and measurements that were previously not available and that have fueled the ‘Big Data’ trend. Along with standard structured forms of data (containing mainly numbers), modern databases include new forms of unstructured data comprising words, images, sounds, and videos which require new techniques to be exploited and interpreted. This study focuses on Text Mining, which is a set of statistical and computer science techniques specifically developed to analyze text data. New sources of text data are now available, such as text messaging, social media activity, blogs, and web searches. The increasing availability of published text, sophisticated technologies, and growing interest in organizations in extracting information from text have led to replacing (or at least supplementing) the human effort with automatic systems. Text mining can be used for a variety of scopes, ranging from basic descriptions of text content through word counts to more sophisticated uses such as finding links between authors and evaluating the content of scripts (e.g., automated marking of essays). Its basic purpose is to process the unstructured information contained in text data in order to make text accessible to various Data mining statistical algorithms. This could help make text data as informative as standard structured data and allow us to investigate relationships and patterns that would otherwise be extremely difficult, if not impossible, to discover. This study takes a quick look at how to organize and analyze unstructured text data using R programming language. And implementing various text mining operations to clean and structure the “eng_news_2020” dataset. This study also represents some association between the words using the chi-square test and clustering procedure.","PeriodicalId":220610,"journal":{"name":"International Journal of Material and Mathematical Sciences","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135302986","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}

引用次数: 0