Journal of Mathematical Techniques and Computational Mathematics最新文献

{"title":"Advantages and Challenges of Remanufactured Products'","authors":"","doi":"10.33140/jmtcm.02.02.01","DOIUrl":"https://doi.org/10.33140/jmtcm.02.02.01","url":null,"abstract":"Remanufacturing is the process of restoring discarded goods and components to a brand-new, technologically sophisticated state with the least amount of waste and expense. In a rebuilt product that incorporates the technological advancements deemed required to ensure that repairs may be completed promptly and the item is returned to functionality in an efficient manner, non-wearing parts are reused. This review article provides an overview of the remanufacturing process. the significance of it, how it contributes to sustainability, and a list of difficulties with product remanufacturing. When industries adopt new technologies for component restoration, higher material recovery, and even the retention in-house of competencies that could have previously been outsourced, the scope and benefits of remanufacturing expand. However, its drawbacks are also explained.","PeriodicalId":437292,"journal":{"name":"Journal of Mathematical Techniques and Computational Mathematics","volume":"2011 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121327475","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":"An Improved Conditional Inference on General Lifetime Model Parameters","authors":"","doi":"10.33140/jmtcm.02.01.07","DOIUrl":"https://doi.org/10.33140/jmtcm.02.01.07","url":null,"abstract":"It is widely known that the conditional inference is usually efficient as the Bayesian inference based on the non-informative prior. However, it is less efficient than the Bayesian inference based on the informative prior. Therefore, the main objective of this paper is to introduce an improvement to the conditional inference by using the kernel prior distribution. The improved conditional inference has been used for estimating the general lifetime model parameters, based on the generalized progressive hybrid-censoring scheme, and compared with the Bayesian estimates, via the Monte Carlo simulations. The simulation results have been shown that the improved conditional inference is highly efficient and provides better estimates than the Bayesian estimates based on different loss functions. Finally, real data sets have been given to demonstrate the efficiencies of the proposed methods","PeriodicalId":437292,"journal":{"name":"Journal of Mathematical Techniques and Computational Mathematics","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127313229","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 Past, Present and the Futuristic Earth-Moon Orbital-Globe Dynamics - and its Habitability","authors":"","doi":"10.33140/jmtcm.02.01.06","DOIUrl":"https://doi.org/10.33140/jmtcm.02.01.06","url":null,"abstract":"Using Advanced Kinematic Model (AKM), the unfolding of Earth’s eco-system under the influence of the evolving tidally interacting Earth-Moon System (E-M system) is studied. E-M system is born 4.467Gy ago at inner geo-synchronous orbit (aG1 = 15,000Km) which is a Total Energy Maxima Hill Top (+4.18x10^30J). E-M system tidally evolves to its final interlocking orbit in 97Gy from NOW at outer geo-synchronous orbit (aG2 = 534,590.6Km) which is Total Energy Minima Valley (- 2.64x10^28J). Tidal evolution is accompanied with synchronization and circularization of Moon’s orbit but co-planarization with Ecliptic plane remains unachievable due to weak tidal coupling between Earth and Moon. E-M system falls in Cassini State 1 in 214My from NOW. In 992.56My from NOW Moon’s ‘orbit’ gets completely circularized and synchronized. In 1.1Gy Sun’s brightness increases 10% and Earth becomes moist greenhouse planet. In 1.3458Gy from NOW Earth Obliquity angle reaches an eco-hostile value of 30.42⁰ with complete destruction of Habitat trinity. In 2Gy from NOW due to Moon’s resonance passage there is large oscillations of obliquity and severe climatic alterations. In 3.5Gy Sun’s brightness increases 40% and Earth becomes a runaway greenhouse planet reducing to a molten remnant. If E-M system survives Red Giant Branch stage, Thermal Pulse-Asymtotic Giant Branch stage, the Planetary Nebular phase and if it survives the present phase of Big-Bang of our Bouncing Universe then in 97Gy from NOW Moon will get interlocked with Earth in a triple synchrony orbital period of 44.7473 d at aG2 = 534,590.6Km.","PeriodicalId":437292,"journal":{"name":"Journal of Mathematical Techniques and Computational Mathematics","volume":"254 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136083364","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":"Some Super Hyper Degrees and Co-Super Hyper Degrees on Neutrosophic Super Hyper Graphs and Super Hyper Graphs Alongside Applications in Cancer’s Treatments","authors":"","doi":"10.33140/jmtcm.02.01.05","DOIUrl":"https://doi.org/10.33140/jmtcm.02.01.05","url":null,"abstract":"In this research, new setting is introduced for new notions, namely, Super Hyper Degree and Co-Super Hyper Degree. Two different types of definitions are debut for them but the research goes further and the Super Hyper Notion, Super Hyper Uniform, and Super Hyper Class based on that are well-defined and well-reviewed. The literature review is implemented in the whole of this research. For shining the elegancy and the significancy of this research, the comparison between this Super Hyper Notion with other Super Hyper Notions and fundamental Super Hyper Numbers are featured. The definitions are followed by the examples and the instances thus the clarifications are driven with different tools. The applications are figured out to make sense about the theoretical aspect of this ongoing research. The cancer’s treatments are the under research to figure out the challenges make sense about ongoing and upcoming research. The special case is up. The cells are viewed in the deemed ways. There are different types of them. Some of them are individuals and some of them are well-modeled by the group of cells. These types are all officially called “Super Hyper Vertex” but the relations amid them all officially called “Super Hyper Edge”. The frameworks “Super Hyper Graph” and “neutrosophic Super Hyper Graph” are chosen and elected to research about “cancer’s treatments”. Thus, these complex and dense Super Hyper Models open up some avenues to research on theoretical segments and “cancer’s treatments”. Some avenues are posed to pursue this research. It’s also officially collected in the form of some questions and some problems. If there’s a Super Hyper Edge between two Super Hyper Vertices, then these two Super Hyper Vertices are called Super Hyper Neighbors. The number of Super Hyper Neighbors for a given Super Hyper Vertex is called Super Hyper Degree. The number of common Super Hyper Neighbors for some Super Hyper Vertices is called Co-Super Hyper Degree for them and used Super Hyper Vertices are called Co-Super Hyper Neighbors. A graph is Super Hyper Uniform if it’s Super Hyper Graph and the number of elements of Super Hyper Edges are the same. Assume a neutrosophic Super Hyper Graph. There are some Super Hyper Classes as follows. It’s SuperHyperPath if it’s only one SuperVertex as intersection amid two given Super Hyper Edges with two exceptions; it’s SuperHyperCycle if it’s only one SuperVertex as intersection amid two given Super Hyper Edges; it’s Super Hyper Star it’s only one SuperVertex as intersection amid all Super Hyper Edges; it’s SuperHyperBipartite it’s only one SuperVertex as intersection amid two given Super Hyper Edges and these SuperVertices, forming two separate sets, has no Super Hyper Edge in common; it’s SuperHyperMultiPartite it’s only one SuperVertex as intersection amid two given Super Hyper Edges and these SuperVertices, forming multi separate sets, has no Super Hyper Edge in common; it’s SuperHyperWheel if it’s only one SuperVertex as ","PeriodicalId":437292,"journal":{"name":"Journal of Mathematical Techniques and Computational Mathematics","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125527951","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":"Image-To-Image Translation for Animation Using Opencv and Gan","authors":"","doi":"10.33140/jmtcm.02.01.04","DOIUrl":"https://doi.org/10.33140/jmtcm.02.01.04","url":null,"abstract":"The main goal is to produce an output to convert the global real image into supported impressions (Animated Image). The concept of the paper is based on one-of-a-kind photos that are turned into an art shape akin to oil. This project would use an OpenCV package in Python to create the layout and a Deep Convolutional Generative Adversarial Network (DCGAN) to generate realistic-looking photos. The system is made up of three components: (a) a generative adversarial network that has been trained to generate comic characters, (b) a cartoon model that will generate edge animated images using OpenCV, and (c) an edge detects that takes input from portraits and then generates comic characters based on the resulting edge images","PeriodicalId":437292,"journal":{"name":"Journal of Mathematical Techniques and Computational Mathematics","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127594948","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":"Long-Term Trend and Variability of Rainfall in Bangladesh","authors":"","doi":"10.33140/jmtcm.02.01.03","DOIUrl":"https://doi.org/10.33140/jmtcm.02.01.03","url":null,"abstract":"The study of long-term rainfall data is significantly important for the country, whose food security and economy depend on the timely availability of water. In this study, spatial and temporal rainfall variability in Bangladesh were analysed for seasonal and annual trends by using monthly rainfall data for 40 years (1981–2020) from 34 stations of Bangladesh Meteorological Department. Linear regression analysis and Mann-Kendall (MK) test were used to identify trends and magnitude of the change and Sen’s slope to estimate the slope of the trend line. The Coefficient of Variation (CV) was used to examine the variability of rainfall. Spatial interpolation technique was done by a Kriging method using Surfer for interpolating the spatial pattern over Bangladesh. With the exception of a few stations, the findings of both parametric and non-parametric tests and trend tests were insignificant for most stations, and these stations revealed a falling trend in annual rainfall. Sen's test showed a decreasing trend for both annual and monsoon rainfall in almost all stations. Over the 40-year periods, among the seasons, the highest percentage of variability was observed in winter rainfall (148.6%) while the lowest percentage variability was observed in annual series (12.1%). The analysis of rainfall data could help irrigation and agricultural management plan for the most efficient use of water resources in Bangladesh.","PeriodicalId":437292,"journal":{"name":"Journal of Mathematical Techniques and Computational Mathematics","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123831576","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":"A Bibliometric Study of Emerging Trends in The Equity Options Segment","authors":"","doi":"10.33140/jmtcm.02.01.02","DOIUrl":"https://doi.org/10.33140/jmtcm.02.01.02","url":null,"abstract":"Index options and stock options are part of equity options segment in particular and the equity derivatives segment in general. This study examines the evolution of index options and stock options as modern financial instruments along with open interest. 759 studies were reviewed from 1982 to 2022. The equity options market informational content is particularly helpful in forecasting future prices. As a result, it is a favourite of traders and short-term investors, but this subject needs more research. The study used a bibliometric and network analysis tool to identify the most cited studies, leading journals, and authors. The thematic structure of research on equity options and open interest has been inferred using the bibliometric analyses in this review paper. With the help of the Scopus database, the results have been summarized, covering the broad topics of volatility, options and option prices, stochastic models, financial markets and stock markets, hedging, Granger causality, price determination, model test, information asymmetry, equity and the VIX index. During this review study, researchers found that day traders and short-term investors can use the information in open interest, index options, and stock options to predict future prices.","PeriodicalId":437292,"journal":{"name":"Journal of Mathematical Techniques and Computational Mathematics","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133327395","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":"Structural, Maorphological, Electrical and Optical Properties of SILAR Deposited Flowers Buds Like SrMoO4 Film","authors":"","doi":"10.33140/jmtcm.02.01.01","DOIUrl":"https://doi.org/10.33140/jmtcm.02.01.01","url":null,"abstract":"Successive Ionic Layer Adsorption and Reaction (SILAR) method is employed to deposit microcrystalline flowers buds like SrMoO4 film onto glass substrate using SrCl2 .6H2 O and Na2 MoO4 •2H2 O as cationic and anionic precursors respectively. Structural and morphological characterization of the film were carried out by means of X-ray diffraction, FTIR spectra, Field Emission Scanning Electron Microscopy and EDX studies, which confirms the formation of scheelite type tetragonal structure and flowers buds like microcrystalline grain growth of SrMoO4 film. The optical band gap and activation energy of the SrMoO4 film is found to be 3.6 and 1.15 eV respectively","PeriodicalId":437292,"journal":{"name":"Journal of Mathematical Techniques and Computational Mathematics","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131088591","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":"On the Necessity of the Existence of the Cosmological Scales","authors":"","doi":"10.33140/jmtcm.01.03.03","DOIUrl":"https://doi.org/10.33140/jmtcm.01.03.03","url":null,"abstract":"An interesting interpretation of the role of the cosmological scales may give rise to the necessity of their existence.","PeriodicalId":437292,"journal":{"name":"Journal of Mathematical Techniques and Computational Mathematics","volume":"381 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117086076","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":"El Niño Impacts on the Ozone Column Over Mato Grosso Do Sul","authors":"","doi":"10.33140/jmtcm.01.03.01","DOIUrl":"https://doi.org/10.33140/jmtcm.01.03.01","url":null,"abstract":"The El Niño-South Oscillation (ENSO), a dominant factor in interannual climate variations worldwide, is characterized in the Pacific by anomalous sea surface heating during the El Niño phase and cooling during the La Niña phase. Although ENSO strongly affects atmospheric circulation, its effects on tropospheric ozone are not fully explored. We used satellite measurements of the tropospheric column of ozone to assess the effects of atmospheric circulations driven by ENSO on tropospheric column ozone levels in Mato Grosso do Sul (MS). The objective of this work is to analyze the annual variation and the effects of the El Niño atmospheric variability mode in the Total Ozone Column (TCO) on MS between 2005 and 2020 using data from the AUREA satellite and the Ozone Monitoring Instrument (OMI) sensor. We found that observed ozone tends to increase in the troposphere after the La Niña peak, corresponding to anomalous downward motions and suppressed convection. The model also reveals that the La Niña-related ozone increase in MS is largely due to intensified transport of ozone-rich air from higher latitudes. This suggests that ENSO should be considered for estimating the ozone concentration in MS, requiring close attention to the properties of ENSO in a changing climate.","PeriodicalId":437292,"journal":{"name":"Journal of Mathematical Techniques and Computational Mathematics","volume":"267 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122916730","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}