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Artificial Intelligence Based Threat Detection in Industrial Internet of Things Environment

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Computers, Materials & Continua 2022年第12期73卷 5809-5824页

作者： fahad f.Alruwaili College of Computing and Information Technology Shaqra UniversitySharqaSaudi Arabia

Internet of Things(IoT)is one of the hottest research topics in recent years,thanks to its dynamic working mechanism that integrates physical and digital world into a single *** technology,applied in industries,is termed as Industrial IoT(IIoT).IIoT has been found to be highly susceptible to attacks from adversaries,based on the difficulties observed in IIoT and its increased dependency upon internet and communication *** or accidental attacks on these approaches result in catastrophic effects like power outage,denial of vital health services,disruption to civil service,etc.,Thus,there is a need exists to develop a vibrant and powerful for identification and mitigation of security vulnerabilities in *** this view,the current study develops an AI-based Threat Detection and Classification model for IIoT,abbreviated as AITDC-IIoT *** presented AITDC-IIoT model initially pre-processes the input data to transform it into a compatible *** addition,WhaleOptimizationAlgorithm based feature Selection(WOA-fS)is used to elect the subset of ***,Cockroach Swarm Optimization(CSO)is employed with Random Vector functional Link network(RVfL)technique for threat ***,CSO algorithm is applied to appropriately adjust the parameters related to RVfL *** performance of the proposed AITDC-IIoT model was validated under benchmark *** experimental results established the supremacy of the proposed AITDC-IIoT model over recent approaches.

关键词： Security industrial internet of things threat detection artificial intelligence feature selection

The embryology of persistent cloaca and urogenital sinus malformations

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Asian Journal of Andrology 2020年第2期22卷 124-128页

作者： David f M Thomas University of Leeds LeedsWest Yorkshire LS29JTUK

Cloacal malformations are characterized by the confluence of the lower urinary tract,the female reproductive tract,and the rectum to create a common channel with a single opening on the *** presence of a cloaca is a normal phase of early human embryological *** the 4^th and 7^th weeks of gestation,the cloaca undergoes subdivision to form the hindgut and urogenital *** of this process results in the congenital anomaly termed persistent cloaca(PC).The term urorectal septum malformation sequence(URSMS)is also used to describe this *** classic description of this process which is still cited in many standard textbooks dates from the 19th ***,this has been increasingly called into question by the findings of studies using modern scientific *** sinus anomalies are defined by the confluence of the urethra and vagina to form a common channel of varying length with a single perineal *** this condition,the anorectal canal opens separately on the *** presence of a urogenital sinus represents a transient phase of the normal development of the lower genital tract in the female ***,the form of urogenital sinus most commonly encountered in the developed world is a feature of disordered sexual differentiation and does not arise simply from the persistence of the anatomical structure which is a feature of normal fetal development.

关键词： cloaca embryology urogenital sinus

On three-dimensional stress analysis of periodic notched plates under tension

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Science China(Physics,Mechanics & Astronomy) 2014年第9期57卷 1751-1757页

作者： AfSHAR R BERTO f University of Padova Department of Management and Engineering

By using the finite element method,three-dimensional models of a number of periodic blunt and sharp notches subjected to tension loading are *** aim of this research is to investigate the thickness effect on the location of maximum stress and notch stress intensity factor(NSIf)of corresponding blunt and sharp periodic notches *** this aim,different number of periodic notches as well as different notch opening angles are *** for two-dimensional plates weakened by periodic notches some results are available in the literature,this paper first faces the problem of three-dimensional cases.A total of about 100 geometrical configurations are *** is found that,the effect of plate thickness of periodic notched components can be characterized by the relative value with respect to the depth of the notch(H/t).for the blunt periodic notches with relatively higher values of H/t ratio,the value of the maximum tensile stress is located near the free *** the contrary for lower values of H/t,it is placed at the middle *** same behaviour is observed for sharp periodic notches in terms of notch stress intensity factors.

关键词： periodic notches three-dimensional problems notch stress intensity factor stress concentration factor

Multiscale stochastic finite element method on random field modeling of geotechnical problems- a fast computing procedure

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frontiers of Structural and Civil Engineering 2015年第2期9卷 107-113页

作者： Xi f. XU School of Civil Engineering Beo'ing Jiaotong University Beijing 100044 China

The Green-function-based multiscale stochastic finite element method (MSfEM) has been formulated based on the stochastic variational principle. In this study a fast computing procedure based on the MSfEM is developed to solve random field geotechnical problems with a typical coefficient of variance less than 1. A unique fast computing advantage of the procedure enables computation performed only on those locations of interest, therefore saving a lot of computation. The numerical example on soil settlement shows that the procedure achieves significant computing efficiency compared with Monte Carlo method.

关键词： multiscale finite element settlement perturbation random field geotechnical

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Chinese Annals of Mathematics,Series B 2002年第2期23卷 253-266页

作者： J.f.RODRIGUES CMAf/Universidade

This paper presents new results for strong solutions and their coincidence sets of the obstacle problem for linear hyperbolic operators of first order. An inequality similar to the LewyStampacchia ones for elliptic and parabolic problems is shown. Under nondegeneracy conditions the stability of the coincidence set is shown with respect to the variation of the data and with respect to approximation by semilinear hyperbolic problems. These results are applied to the asymptotic stability of the evolution problem with respect to the stationary coercive problem with obstacle.

关键词： Hyperbolic obstacle problem Linear hyperbolic operator Strong solution

Applied statistical functions and multivariate analysis of geochemical compositional data to evaluate mineralization in Glojeh polymetallic deposit,NW Iran

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frontiers of Earth Science 2019年第1期13卷 229-246页

作者： f DARABI-GOLESTAN A HEZARKHANI Department of Mining and Metallurgical Engineering Amirkabir University of TechnologyTehranIran

Various genesis of epithermal veins as well as host rock cause complication in the modeling process. Thus LINEST and controlling function were applied to improve the accuracy and the quality of the *** LINEST is a model which is based on multiple linear regression and refers to a branch of applied *** method concerns directly to the application oft-test (TINV and TDIST to analyses of variables in the model)and f- test (fDIST,f-statistic to compare different models) *** elimination technique is applied to reduce the number of variables in the model through all the borehole *** 18 steps,an optimized reduced model (ORM)was constructed and ranked in order of importance as Pb >Ag >P >Hg>Mn>Nb >U>Sr>Sn>As > Cu,with the lowest confidence level (CL)of 92% for *** to the epigenetic vein genesis of Glojeh polymetallic deposit,determination of spatial pattems and elemental associations accompanied by anomaly separation were conducted by K-means cluster and robust factor analysis method based on centered log-ratio (clr)transformed ***,12 samples (cluster 2)with the maximum distance from centroid,indicates the intensity of vein polymetallic mineralization in the *** addition, an ORM for vein population was extracted for Sb >A1 > As >Mg >Pb >Cu >Ag elements with the R2 up to 0.99. On the other hand,after 23 steps of optimization process at the host rock population,an ORM Was conducted by Ag >Te >Hg >Pb >Mg >A1 >Sb >As represented in descending order *** revealed that Te and Hg can be considered as pathfinder elements for Au at the host *** on the ORMs at each population Ag,Pb,and As were often associated with Au *** concentration ratio of (tSb × tA1)vein/(tSb × tA1)baekground as an enrichment index can intensify the mineralization ***,Glojeh deposit was evaluated to be classified as a vein-style Au (Ag,Pb,As)-polymetallic mineralization.

关键词： LINEST and controlling function optimized reduced model log-ratio (clr)transformation K-means cluster robust factor analysis pathfinder elements veinstyle Glojeh polymetallic mineralization

What do we know about parasitic plants and the leaf economic spectrum?

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Journal of Plant Ecology 2022年第4期15卷 691-699页

作者： Audrey f.Haynes Department of Integrative Biology University of California BerkeleyBerkeleyCA 94720USA

The leaf economic spectrum(LES)quantifes correlations between key leaf traits across vascular plants and distills much of the variation in these traits to a single *** LES,remarkable in its near universality,has been extensively researched across a variety of ***,parasitic plants relationship to the LES framework remains relatively *** the LES is,in part,driven by physiological tradeoffs in the acquisition of carbon(C),in theory heterotrophy in parasitic plants,which supplants some of the essential functions of leaves,could lead to departures from the *** global leaf trait data from the TRY database,this work assessed the overall representation of parasitic plants in the TRY database,then compared the LES suite of leaf traits in parasitic plants to their non-parasitic *** their unique physiology,parasitic plants did not deviate dramatically from the LES,although there were examples of differences in position on the LES and relationships among *** more importantly,parasitic plants are not well represented in the TRY database,making any conclusions here premature.

关键词： parasitic plants leaf economic spectrum TRY database leaf traits

The lattice of idempotent distributive semiring varieties

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Science China Mathematics 1999年第8期42卷 785-804页

作者： f.Pastijn 郭聿琦 Department of Mathematics Statistics and Computer Science Marquette University

A solution is given for the word problem for free idempotent distributive semirings. Using this solution the lattice L(ID) of subvarieties of the variety ID of idempotent distributive semirings is determined. It turns out that L(ID) is isomorphic to the direct product of a four-element lattice and a lattice which is itself a subdirect product of four copies of the lattice L (B) of all band varieties. Therefore L(ID) is countably infinite and distributive. Every subvariety of ID is finitely based.

关键词： idempotent semiring band distributive semiring variety.

fortification Challenges and Needs

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Biomedical and Environmental Sciences 2001年第1期14卷 98-103页

作者： RODOLfO f. fLORENTINO President Philippine Association of Nutrition Philippines

Experience in many parts of the developing world has shown that food fortification offers a cost_effective and sustainable solution to the problem of micronutrient malnutrition. Building on the advances in science and technology and backed by studies on the economic benefits of fortification programs, governments and industry are beginning to respond positively to the call of nutrition advocates to adopt fortification as a long_term strategy. On the other hand, formidable challenges still remain in many countries in Asia, constraining the widespread adoption of this strategy. The science and technology community needs to provide adequate scientific and technological information as basis for planning and decision making. The government faces the challenge of providing the enabling environment for all stakeholders to cooperate in the fortification effort. Industry faces the challenge of adapting its production system to the requirements of fortification in order that they can contribute to social objectives while pursuing their economic objectives. The international and bilateral aid agencies need to seek tried and innovative ways to support the multiple players of food fortification, as these players in turn face the challenges that confront them.

关键词： science and technology production system economic benefits decision making in order