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A NOTE ON WEAK STABILITY OF 𝜺-ISOMETRIES ON CERTAIN BANACH SPACES 关于𝜺-isometries在某些banach空间上弱稳定性的一个注记
IF 0.4
Journal of Science and Arts Pub Date : 2023-06-30 DOI: 10.46939/j.sci.arts-23.2-a08
Minanur Rohman, I. Eryilmaz
{"title":"A NOTE ON WEAK STABILITY OF 𝜺-ISOMETRIES ON CERTAIN BANACH SPACES","authors":"Minanur Rohman, I. Eryilmaz","doi":"10.46939/j.sci.arts-23.2-a08","DOIUrl":"https://doi.org/10.46939/j.sci.arts-23.2-a08","url":null,"abstract":"In this paper, we will discuss the weak stability of ε-isometries on certain Banach spaces. Let f: X → Y be a standard ε-isometry. If Y^* is strictly convex, then for any x^*∈X^*, there is φ∈Y^* that satisfies ‖φ‖ ≡r=‖x^* ‖, such that |〈x^*,x〉-〈φ,f(x)〉|≤2rε,x∈X.\u0000Also, we show that if X and Y are both L_P spaces (1<p<∞), f: X→Y is a standard ε-isometry, then there exists a linear operator T: Y→X with norm 1 such that ‖Tf(x)-x‖≤2ε,∀x∈X.","PeriodicalId":54169,"journal":{"name":"Journal of Science and Arts","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46975944","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
DETERMINATION OF OPTIMUM SAMPLE SIZE AND VARIANCE IN MULTIVARIATE STRATIFIED SAMPLING WITH NON-LINEAR TIME FUNCTION 非线性时间函数多变量分层抽样中最佳样本量和方差的确定
IF 0.4
Journal of Science and Arts Pub Date : 2023-06-30 DOI: 10.46939/j.sci.arts-23.2-a18
Abrar Ahmad, Q. Rabbani, A. H. Ansari
{"title":"DETERMINATION OF OPTIMUM SAMPLE SIZE AND VARIANCE IN MULTIVARIATE STRATIFIED SAMPLING WITH NON-LINEAR TIME FUNCTION","authors":"Abrar Ahmad, Q. Rabbani, A. H. Ansari","doi":"10.46939/j.sci.arts-23.2-a18","DOIUrl":"https://doi.org/10.46939/j.sci.arts-23.2-a18","url":null,"abstract":"Stratified sample size which determined in Stratified Random Sampling (SRS) with the help of different allocation techniques. The multivariate stratified sampling with linear or nonlinear time function can be optimized using generalized model of time function. After formulation as generalized model with time function (linear or nonlinear), in which the information given that there is only one varying time (time of transportation) and different time involved are constants or insignificant. The formulated generalized model was solved using different techniques but in present paper we use Lagrange multiplier technique to get the optimal solution (i.e. by minimizing the variance) with the involved time constraints. The generalized model with time of transportation is derived under optimum allocation and other involved time is fixed, when the sample size and its variances for a given time is unknown, then different allocation techniques are required for proportionality constant and a given time.","PeriodicalId":54169,"journal":{"name":"Journal of Science and Arts","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46357583","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
AN ENHANCED CLASSIFICATION SYSTEM BASED ON KERNEL PRINCIPAL COMPONENT ANALYSIS AND DATA COMPLEXITY MEASURES 基于核主成分分析和数据复杂度度量的增强型分类系统
IF 0.4
Journal of Science and Arts Pub Date : 2023-05-30 DOI: 10.46939/j.sci.arts-23.2-a12
Fatih Sağlam, E. Dünder, M. Cengiz
{"title":"AN ENHANCED CLASSIFICATION SYSTEM BASED ON KERNEL PRINCIPAL COMPONENT ANALYSIS AND DATA COMPLEXITY MEASURES","authors":"Fatih Sağlam, E. Dünder, M. Cengiz","doi":"10.46939/j.sci.arts-23.2-a12","DOIUrl":"https://doi.org/10.46939/j.sci.arts-23.2-a12","url":null,"abstract":"Principal component analysis is commonly used as a pre-step before employing a classifier to avoid the negative effect of the dimensionality and multicollinearity. The performance of a classifier is severely affected by the deviations from the linearity of the data structure and noisy samples. In this paper, we propose a new classification system that overcomes the drawback of these crucial problems, simultaneously. Our proposal is relying on the kernel principal component analysis with a proper parameter selection approach with data complexity measures. According to the empirical results, F1, T2 and T3 in AUC, T3 in GMEAN and T2 and T3 in MCC performed better than classical and other complexity measures. Comparison of classifiers showed that Radial SVM performs better in AUC, and KNN performs better in GMEAN and MCC using KPCA with complexity measures. As a result, our proposed system produces better results in various classification algorithms with respect to classical approach.","PeriodicalId":54169,"journal":{"name":"Journal of Science and Arts","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45612998","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
ON RULED SURFACES CONSTRUCTED BY THE EVOLUTION OF A POLYNOMIAL SPACE CURVE 在由多项式空间曲线演化构造的直纹曲面上
IF 0.4
Journal of Science and Arts Pub Date : 2023-03-30 DOI: 10.46939/j.sci.arts-23.1-a06
K. Eren, K. H. Ayvaci, S. Şenyurt
{"title":"ON RULED SURFACES CONSTRUCTED BY THE EVOLUTION OF A POLYNOMIAL SPACE CURVE","authors":"K. Eren, K. H. Ayvaci, S. Şenyurt","doi":"10.46939/j.sci.arts-23.1-a06","DOIUrl":"https://doi.org/10.46939/j.sci.arts-23.1-a06","url":null,"abstract":"In this paper, we present the evolutions of the ruled surfaces constructed by the tangent, normal-like, and binormal-like vector fields of a polynomial space curve. These evolutions of the ruled surfaces depend on the evolutions of their directrices using the Flc (Frenet like curve) frame along a polynomial space curve. Therefore, the evolutions of a polynomial curve are expressed in the first step of this study. Then, some geometric properties of the special ruled surfaces are investigated and examples of these surfaces are given and their graphics are drawn using the Mathematica 9 program.","PeriodicalId":54169,"journal":{"name":"Journal of Science and Arts","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49173475","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
PETRI NET MODELING OF A PRODUCTION SYSTEM WITH PARALLEL MANUFACTURING PROCESSES 具有平行制造过程的生产系统的Petri网建模
IF 0.4
Journal of Science and Arts Pub Date : 2023-03-30 DOI: 10.46939/j.sci.arts-23.1-c05
Octavian Duca, E. Minca, M. Paun, I. Gurgu, O. Dragomir, Claudiu Bidica
{"title":"PETRI NET MODELING OF A PRODUCTION SYSTEM WITH PARALLEL MANUFACTURING PROCESSES","authors":"Octavian Duca, E. Minca, M. Paun, I. Gurgu, O. Dragomir, Claudiu Bidica","doi":"10.46939/j.sci.arts-23.1-c05","DOIUrl":"https://doi.org/10.46939/j.sci.arts-23.1-c05","url":null,"abstract":"This paper presents the modelling and control of a flexible manufacturing system with integrated Industry 4.0 concepts using Petri nets. The flexible manufacturing system is composed of 7 workstations that ensure the assembly and disassembly of two types of products on two parallel production processes. The two parallel processes, in-line and in-cell production processes, ensure the assembly of the products and disassembly of the defects with a minimal number of stations. wo types of controls, local and centralized, are implemented in the control of production processes. The local control, based on the PLCs of each station, ensures the control of the assembly process at the workstation level. The centralized control ensures the obtaining of desired results at the level of interaction between the stations and also the implementation of the optimization algorithm results. To better understand and develop the control of the system a Petri net model was developed. Based on the properties of the Petri nets was possible to simulate and verify the assembly process and data flow inside the flexible manufacturing system. The developed model also ensures no bottlenecks at the data transmission and processing of the production information from the client to the production hardware.","PeriodicalId":54169,"journal":{"name":"Journal of Science and Arts","volume":"21 3","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41271284","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
NEW ARITHMETIC FUNCTION RELATED TO THE LEAST COMMON MULTIPLE 新的有关最小公倍数的算术函数
IF 0.4
Journal of Science and Arts Pub Date : 2023-03-30 DOI: 10.46939/j.sci.arts-23.1-a09
Brahim Mittou
{"title":"NEW ARITHMETIC FUNCTION RELATED TO THE LEAST COMMON MULTIPLE","authors":"Brahim Mittou","doi":"10.46939/j.sci.arts-23.1-a09","DOIUrl":"https://doi.org/10.46939/j.sci.arts-23.1-a09","url":null,"abstract":"The author’s last two papers concerned the study of arithmetic functions related to the greatest common divisor. In the present paper, similarly to the two previous papers we will define new multiplicative arithmetic functionsrelated to the least common multiple and we will study several interesting properties of them. Also, we will discuss the values of two special functionsof them at perfect numbers.","PeriodicalId":54169,"journal":{"name":"Journal of Science and Arts","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43913764","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
MULTIPLICATIVELY PREINVEX P-FUNCTIONS 乘预凸P函数
IF 0.4
Journal of Science and Arts Pub Date : 2023-03-30 DOI: 10.46939/j.sci.arts-23.1-a02
H. Kadakal, M. Kadakal
{"title":"MULTIPLICATIVELY PREINVEX P-FUNCTIONS","authors":"H. Kadakal, M. Kadakal","doi":"10.46939/j.sci.arts-23.1-a02","DOIUrl":"https://doi.org/10.46939/j.sci.arts-23.1-a02","url":null,"abstract":"In this study, using both Hölder’s integral inequality and Hölder-İşcan integral inequality, some inequalities of Hermite Hadamard type obtained for multiplicatively preinvex P-functions are given. Afterwards, the result obtained with Hölder-İşcan inequality has been shown to be better than that obtained with Hölder’s integral inequality.","PeriodicalId":54169,"journal":{"name":"Journal of Science and Arts","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46043120","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: 1
THE EFFECT OF ELECTROLYTE COMPOSITIONS ON THE STRUCTURE AND PROPERTIES OF PEO COATINGS ON PURE Ti SUBSTRATE 电解液组成对纯钛基底上PEO涂层结构和性能的影响
IF 0.4
Journal of Science and Arts Pub Date : 2023-03-30 DOI: 10.46939/j.sci.arts-23.1-b01
E. Coaca, V. Andrei, I. Dulama, Andreea Laura Banica, C. Radulescu, C. Mihăilescu
{"title":"THE EFFECT OF ELECTROLYTE COMPOSITIONS ON THE STRUCTURE AND PROPERTIES OF PEO COATINGS ON PURE Ti SUBSTRATE","authors":"E. Coaca, V. Andrei, I. Dulama, Andreea Laura Banica, C. Radulescu, C. Mihăilescu","doi":"10.46939/j.sci.arts-23.1-b01","DOIUrl":"https://doi.org/10.46939/j.sci.arts-23.1-b01","url":null,"abstract":"Plasma electrolytic oxidation method was used to form ceramic coatings on pure Ti substrates, using various aqueous solutions of sodium aluminate (15 g/L and 20 g/L, with or without the addition of NaOH, 2 g/L). The PEO process was carried out at constant time and voltage (300 seconds, 200 V). The ceramic coatings obtained by PEO were investigated by SEM, EDS, XRD, XPS and their corrosion behavior has been evaluated. The aim of the study was to understand the role of NaOH in the development of the PEO process and to evaluate the results obtained by short treatments in potentiostatc regime.","PeriodicalId":54169,"journal":{"name":"Journal of Science and Arts","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41840592","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
MHD FLOW PAST OVER OSCILLATING VERTICAL PLATE THROUGH POROUS MEDIA IN THE PRESENCE OF HALL EFFECT AND CHEMICAL REACTION 在霍尔效应和化学反应的作用下，MHD在多孔介质中通过振荡垂直板
IF 0.4
Journal of Science and Arts Pub Date : 2023-03-30 DOI: 10.46939/j.sci.arts-23.1-c02
G. Kumar, A. Khan, Manish Kumar
{"title":"MHD FLOW PAST OVER OSCILLATING VERTICAL PLATE THROUGH POROUS MEDIA IN THE PRESENCE OF HALL EFFECT AND CHEMICAL REACTION","authors":"G. Kumar, A. Khan, Manish Kumar","doi":"10.46939/j.sci.arts-23.1-c02","DOIUrl":"https://doi.org/10.46939/j.sci.arts-23.1-c02","url":null,"abstract":"MHD flow past over oscillating vertical plate with variable temperature and mass diffusion through a porous medium in the presence of Hall current effect and chemical reaction is studied here. The MHD fluid model contains partial differential equations of momentum, energy and diffusion equations. The Laplace-transform technique used to find the exact solution of equations involved in this paper. The resultant velocity profile is discussed with the help of graphs drawn for different parameters like, inclination of magnetic field, chemical reaction parameter, phase angle parameter and permeability parameter, and the numerical values Sherwood number have been also tabulated. It is noticed that the values obtained for velocity, concentration and temperature profiles are in concurrence with the actual flow of the unsteady MHD fluid.","PeriodicalId":54169,"journal":{"name":"Journal of Science and Arts","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44934162","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
BISPHOSPHONATES-PDA: CORRELATION BETWEEN STRUCTURE AND PHYSICOCHEMICAL PROPERTIES 双膦酸盐- pda:结构与理化性质的关系
IF 0.4
Journal of Science and Arts Pub Date : 2023-03-30 DOI: 10.46939/j.sci.arts-23.1-b02
M. Ciocîlteu, E. Amzoiu, M. Amzoiu, G. Rău, C. Pisoschi, Roberto Angelo Postelnicu, J. Neamțu, Alexandra Costachi, Daniel Cord, A. Mocanu
{"title":"BISPHOSPHONATES-PDA: CORRELATION BETWEEN STRUCTURE AND PHYSICOCHEMICAL PROPERTIES","authors":"M. Ciocîlteu, E. Amzoiu, M. Amzoiu, G. Rău, C. Pisoschi, Roberto Angelo Postelnicu, J. Neamțu, Alexandra Costachi, Daniel Cord, A. Mocanu","doi":"10.46939/j.sci.arts-23.1-b02","DOIUrl":"https://doi.org/10.46939/j.sci.arts-23.1-b02","url":null,"abstract":"Bisphosphonates are used to treat a number of bone related diseases such as osteosarcoma, malignant hypercalcemia, osteomyelitis. Developing novel drug delivery systems may overcome the adverse reactions caused by traditional administration. This study uses a combination of molecular docking studies and correlation techniques between structure – physical and chemical properties to assess how different bisphosphonates (alendronate, risedronate, pamidronate, zoledronate) interact with polydopamine in order to later design new formulations. The structure of polydopamine is still under discussion therefore, its bisphosphonate binding properties have not been completely established. Polydopamine was modeled by repeated docking of tetrameric subunits combined in two ways which led to simple and mixed oligomers. Fingerprint descriptors, namely electronegativity of the OMO-UMO quantum molecular states, were used for the correlation studies. The correlation coefficients suggest that several atom species such as nitrogen and carbon have increased contributions to the formation of both HOMO and LUMO molecular states. The results showed that the most stable complex was obtained with risedronate for both simple and mixed dopamine oligomers (-186.00 kJ/mol and -184.92 kJ/mol).","PeriodicalId":54169,"journal":{"name":"Journal of Science and Arts","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70655305","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
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