检索结果-内蒙古大学图书馆

HighTech and Innovation Journal 2024年第1期5卷 16-35页

作者： Sunthornwat, Rapin Sukparungsee, Saowanit Areepong, Yupaporn Industrial Technology and Innovation Management Program Faculty of Science and Technology Pathumwan Institute of Technology 10330 Thailand Department of Applied Statistics Faculty of Applied Science King Mongkut’s University of Technology North Bangkok Bangkok10800 Thailand

This research aims to investigate a Homogenously Weighted Moving Average (HWMA) control chart for detecting minor and moderate shifts in the process mean. A mathematical model for the explicit formulae of the average run length (ARL) of the HWMA control chart based on the autoregressive (AR) process is presented. The efficacy of the HWMA control chart is evaluated based on the average run length, the standard deviation of run length (SDRL), and the median run length (MRL). As illustrations of the design and implementation of the HWMA control chart, numerical examples are provided. In numerous instances, a comparative analysis of the HWMA control chart relative to the Extended Exponentially Weighted Moving Average (Extended EWMA) and cumulative sum (CUSUM) control charts with mean process shifts is performed in detail. Additionally, the relative mean index (RMI), the average extra quadratic loss (AEQL), and the performance comparison index (PCI) are utilized to evaluate the performance of control charts. For various shift sizes, the HWMA control chart is superior to the Extended EWMA and CUSUM control charts. This study applies empirical data from the area of economics to validate the explicit formula of ARL values for the HWMA control chart. © Authors retain all copyrights.

关键词： Control charts

来源：评论

学校读者我要写书评

暂无评论

Use of dual control groups to estimate false positive rates in laboratory animal carcinogenicity studies

引用

Toxicological Sciences 1986年第4期7卷 573-584页

作者： Haseman, J.K. Wlnbush, J.S. Statistics and Biomathematics Branch Biometry and Risk Assessment Program National Institute of Environmental Health Sciences North Carolina 27709 P.O. Box 12233 Research Triangle Park United States Division of Mathematics Center for Food Safety and Applied Nutrition Food and Drug Administration Washington D.C 20204 United States

Use of Dual Control Groups to Estimate False Positive Rates in Laboratory Animal Carcinogenicity Studies. HASEMAN, J.K., WINBUSH, J.S., AND O'DONNELL, M.W., JR. (1986). Fun-dam. Appl. Toxicol. 7, 573-584. Tumor incidence data from 18 recently completed carcinogenicity studies utilizing male and female mice and rats were examined to determine if the frequency of significant (p < 0.05) pairwise differences between the two concurrent control groups employed in these experiments exceeded chance expectation. Although marked study-to-study variability was observed for some tumors, no evidence of extra-binomial within-study variability between the two concurrent control groups was found. The total number of observed significant (p < 0.05) paired-control differences was virtually identical to what would be expected from the usual binomial model assumptions;the corresponding overall observed (44%) and expected (47-50%) false positive rates were essentially the same. While one should not overgeneralize the implications of these findings, these results should lessen concerns that elevated false positive rates resulting from extra-binomial within-study variability might be adversely affecting the interpretation of long-term laboratory animal carcinogenicity studies. On the other hand, these results reaffirm the conclusions of other investigators that (particularly for commonly occurring tumors) more stringent evidence than an isolated p < 0.05 effect should be required before an increased tumor incidence is regarded as biologically significant;otherwise, the study may have an unacceptably high false positive rate. © 1986 by the Society of Toxicology.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Transverse magnetic defect modes in two-dimensional triangular lattice photonic crystals

Transverse magnetic defect modes in two-dimensional triangul...

引用

Quantum Electronics and Laser Science Conference, QELS 2001

作者： Stojić, N. Glimm, J. Deng, Y. Haus, J.W. Department of Physics and Astronomy University at Stony Brook Stony BrookNY11794-3381 United States Department of Applied Mathematics and Statistics University at Stony Brook Stony BrookNY11794-3600 United States Electro-Optics Program University of Dayton DaytonOH45469-0254 United States

ISBN: (纸本)155752663X

Summary form only given. We used the finite-difference time-domain method to solve Maxwell equations. More specifically, we applied the non-dissipative Yee's algorithm with a duality relation between the spatial representations of the electric and magnetic fields that represents both the differential and integral forms of Maxwell equations. To shorten the computational run time a parallel code was developed and run on a Pentium III linux cluster. © 2001 Optical Soc. Of America.

关键词： Maxwell equations

来源：评论

学校读者我要写书评

暂无评论

Energy stability of the Charney-DeVore quasi-geostrophic equation for atmospheric blocking

arXiv

引用

arXiv 2021年

作者： Chen, Zhi-Min Xiong, Xiangming School of Mathematics and Statistics Shenzhen University Shenzhen518060 China The Program in Applied and Computational Mathematics Princeton University PrincetonNJ08544 United States

Charney and DeVore [J. Atmos. Sci. 36 (1979), 1205-1216] found multiple equilibrium states as a consequence of bottom topography in their pioneering work on the quasi-geostrophic barotropic flow over topography in a β-plane channel. In the present paper, we prove that the basic flow is asymptotically stable in a parameter region, including the flat topography situation, which excludes the existence of multiple equilibrium states therein. Moreover, we show that an additional condition on the average zonal force or the average zonal velocity is indispensable to the well-posedness of the Charney–DeVore quasi-geostrophic equation. Coexistence of at least three equilibrium states is confirmed by a pseudo-arclength continuation method for different topographic amplitudes. The stabilities of the equilibrium states are examined by high-resolution direct numerical simulations. © 2021, CC BY-NC-ND.

关键词： Astrophysics

来源：评论

学校读者我要写书评

暂无评论

A Comparison between the Bayesian Network Model and the Logistic Regression Model in Prevention of the Defects on Ceramic Tiles

Research Square

引用

Research Square 2022年

作者： Sevinç, Volkan Kırca, Meryem Merve Muğla Sıtkı Koçman University Faculty of Science Department of Statistics Turkey Muğla Sıtkı Koçman University Graduate School of Natural and Applied Sciences Statistics Program Turkey

One of the most important problems occurring in ceramic tile industry is defective product problem. Defective ceramics leads to loss of income and waste of resources in enterprises. However, it is generally unknown which factors and production stages cause what kinds of defects. On the other hand, in the literature, the existing modeling studies usually consider the defects seen on industrial ceramics. The defect types of industrial ceramics and those of ceramic tiles are different. Moreover, the classification types encountered in both kinds of ceramics also differ from each other. This article investigates the reasons behind the defect occurrences on ceramic tiles, along with a comparison between a logistic regression model and a Bayesian network model. In the study, the model validation results of the logistic regression model and the Bayesian network model show that the Bayesian network model is more successful in estimating the defect types. Thus, the constructed Bayesian network model indicates that in general, the high speeds of the production band significantly increase the probabilities of all kinds of defects except the deformation defect. Additionally, the high densities of the glaze also increase the occurrence levels of the defects, except the deformation defect. Similarly, the high levels of the engobe weight and the engobe density are also among the factors increasing the defect occurrences. © 2022, CC BY.

关键词： Bayesian networks

来源：评论

学校读者我要写书评

暂无评论

Antithetic Multilevel Particle Filters

arXiv

引用

arXiv 2023年

作者： Jasra, Ajay Maama, Mohamed Ombao, Hernando Applied Mathematics and Computational Science Program United States Statistics Program Computer Electrical and Mathematical Sciences and Engineering Division King Abdullah University of Science and Technology Thuwal23955-6900 Saudi Arabia

In this paper we consider the filtering of partially observed multi-dimensional diffusion processes that are observed regularly at discrete times. This is a challenging problem which requires the use of advanced numerical schemes based upon time-discretization of the diffusion process and then the application of particle filters. Perhaps the state-of-the-art method for moderate dimensional problems is the multilevel particle filter of [12]. This is a method that combines multilevel Monte Carlo and particle filters. The approach in that article is based intrinsically upon an Euler discretization method. We develop a new particle filter based upon the antithetic truncated Milstein scheme of [10]. We show that for a class of diffusion problems, for ϵ > 0 given, that the cost to produce a mean square error (MSE) in estimation of the filter, of O(ϵ2) is O(ϵ−2 log(ϵ)2). In the case of multidimensional diffusions with non-constant diffusion coefficient, the method of [12] has a cost of O(ϵ−2.5) to achieve the same MSE. We support our theory with numerical results in several examples. Copyright © 2023, The Authors. All rights reserved.

关键词： Mean square error

来源：评论

学校读者我要写书评

暂无评论

EVOLUTION OF MATURATION SIZE IN HARVESTED PREDATOR-PREY SYSTEM

EVOLUTION OF MATURATION SIZE IN HARVESTED PREDATOR-PREY SYST...

引用

第三届世界生态高峰会(Eco Summit 2007)

作者： Poos J.J. Brannstrom A. Dieckmann U. Evolution and Ecology Program International Institute for Applied Systems AnalysisLaxenburg Austria Institute for Marine & Ecosystem Studies IJmuiden Netherlands Evolution and Ecology Program International Institute for Applied Systems AnalysisLaxenburg Austria Department of Mathematics and Mathematical Statistics Umea University Umea Sweden Evolution and Ecology Program International Institute for Applied Systems AnalysisLaxenburg Austria

来源：评论

学校读者我要写书评

暂无评论

Classification of Nonlinear Confusion Component Using Hybrid Multi-Criteria Decision Making

引用

Intelligent Automation & Soft Computing 2023年第5期36卷 1451-1463页

作者： Nabilah Abughazalah Iqra Ishaque Majid Khan Ammar S.Alanazi Iqtadar Hussain Department of Mathematical Sciences College of SciencePrincess Nourah bint Abdulrahman UniversityP.O.Box 84428Riyadh 11671Saudi Arabia Department of Applied Mathematics and Statistics Institute of Space TechnologyIslamabadPakistan Department of Mathematics King Abdulaziz UniversityFaculty of ScienceJeddahSaudi Arabia Mathematics Program Department of MathematicsStatistics and PhysicsCollege of Arts and SciencesQatar University2713DohaQatar Statistical Consulting Unit College of Arts and ScienceQatar UniversityDohaQatar

In today’s digital world,the most inevitable challenge is the protection of digital *** to the weak conﬁdentiality preserving techniques,the existing world is facing several digital information *** make our digital data indecipherable to the unauthorized person,a technique forﬁnding a crypto-graphically strong Substitution box(S-box)have *** S-box with sound cryptographic assets such as nonlinearity(NL),strict avalanche criterion(SAC),bit independence criteria(BIC),bit independence criteria of nonlinearity(BIC-NL),Bit independence criteria of Strict avalanche criteria(BIC-SAC),and Input/output XOR is considered as the robust *** Decision-Making Trial and Evaluation Laboratory(DEMATEL)approach of multi-criteria decision making(MCDM)is proposed forﬁnding the interrelation among cryptographic properties.A combination of two MCDM methods namely Entropy and multi-objective optimization based on ratio analysis(MOORA)is applied for the best S-box selection.A robust substitution box is selected for secure communications in cryptography by using the combination of DEMETAL selection criteria,entro-py weight assigning,and MOORA ranking *** combination of these three methods provides a fast selection procedure for the secure confusion *** offered selection method can also be utilized for the choice of the best cryptosystem with highly secure properties and resistive against all possible linear and differential attacks in the cryptanalysis.

关键词： DEMATEL MCDM MOORA nonlinearity S-box

来源：评论

学校读者我要写书评

暂无评论

In-silico structural and functional analysis of nonsynonymous single nucleotide polymorphisms in human FOLH1 gene

引用

In silico pharmacology 2025年第1期13卷 32页

作者： Abtin Tondar Muhammad Irfan Sergio Sánchez-Herrero Hafsa Athar Aleena Haqqi Asim Kumar Bepari Laura Calvet Liñán David Hervás Marin Department of Computer Science Multimedia and Telecommunication Interuniversity Doctoral Program in Bioinformatics Universitat Oberta de Catalunya Barcelona (UOC) Spain. Stanford Deep Data Research Center Stanford University Stanford USA. Atta-Ur-Rahman School of Applied Biosciences (ASAB) National University of Sciences and Technology (NUST) Islamabad Punjab Pakistan. School of Medical Laboratory Technology Minhaj University Lahore (MUL) Lahore Punjab Pakistan. Department of Pharmaceutical Sciences North South University (NSU) Dhaka Bangladesh. Telecommunications and Systems Engineering Department Universitat Autònoma de Barcelona (UAB) Sabadell Spain. Department of Applied Statistics and Operational Research and Quality Alcoy Universitat Politècnica de València (UPV) Alcoy Spain.

Non-synonymous single nucleotide polymorphisms (nsSNPs), also known as missense SNPs, can seriously affect an individual’s vulnerability to numerous diseases, including cancer. In this study, we conducted a comprehensive in-silico analysis to examine the structural and functional implications of nsSNPs within the Folate Hydrolase 1(FOLH1) gene, which encodes the Prostate-Specific Membrane Antigen (PSMA). A total of 504 SNPs were retrieved, and after filtering, 15 pathogenic nsSNPs were identified using five different in-silico tools. Three of these SNPs—R255H (rs375565491), R255C (rs201789325), and G168E (rs267602926)—were consistently predicted to be pathogenic across all in-silico tools. MutPred2 was used to predict the structural and functional consequences of the identified mutations. The analysis revealed multiple alterations in the PSMA protein, including changes in helical conformations, glycosylation patterns, transmembrane properties, and solvent accessibility. Furthermore, I-Mutant 2.0 analysis demonstrated a decrease in protein stability for most nsSNPs, except for rs267602926 (G168E), which was predicted to increase stability. Conservation analysis using ConSurf revealed varying degrees of amino acid conservation, with R255H and R255C identified as highly conserved residues, indicating their potential functional and structural significance. Additionally, post-translational modification (PTM) analysis indicated that while phosphorylation and methylation sites remained unchanged, specific glycosylation sites were lost in two pathogenic mutant variants (R255H and R255C), potentially affecting PSMA function and adversely impacting prostate cancer. Our findings highlight the importance of in silico studies to investigate the structural and functional impacts of FOLH1 nsSNPs on the PSMA protein. Such in silico studies can deepen our understanding of the roles of nsSNPs in prostate cancer onset, progression, and drug resistance.

关键词： FOLH1 In-silico structural and functional analyses PSMA PTM nsSNPs

来源：评论

学校读者我要写书评

暂无评论

Generalized Multiquadric Neural Networks in Image Reconstruction 4

Generalized Multiquadric Neural Networks in Image Reconstruc...

引用

4th International Conference on Machine Learning and Intelligent Systems, MLIS 2022

作者： Pongchalee, Pornthip Inthapong, Pirapong Chanthawara, Krittidej Paewpolsong, Pichapop Kaennakham, Sayan Department of Applied Mathematics and Statistics Faculty of Science and Liberal Arts Rajamangala University of Technology Isan Nakhon Ratchasima30000 Thailand School of Mathematics Institute of Science Suranaree University of Technology Nakhon Ratchasima30000 Thailand Program of Mathematics Faculty of Science Ubon Ratchathani Rajabhat University Ubon Ratchathani34000 Thailand

ISBN: (纸本)9781643683560

This work aims to numerically investigate the performance of the multiquadric (MQ) radial basis function in more general formats for image reconstruction applications. Desired features, i.e., accuracy and shape parameter sensitivity, of each form is numerically compared and explored. The famous Lena image is damaged using two levels of damage: 20% and 40%, in a Salt-and-Pepper manner. It has been discovered in this work that β=3/2 produces reasonably good accuracy and is least affected by the change in shape parameter while keeping both the CPU time and the condition number reasonably acceptable. This finding is promising and useful for further applications of MQ in more complex contexts. © 2022 The authors and IOS Press.

关键词： Image reconstruction

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：