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  • Open Access

    ARTICLE

    On Single Valued Neutrosophic Regularity Spaces

    Yaser Saber1,2, Fahad Alsharari1,6,*, Florentin Smarandache3, Mohammed Abdel-Sattar4,5

    CMES-Computer Modeling in Engineering & Sciences, Vol.130, No.3, pp. 1625-1648, 2022, DOI:10.32604/cmes.2022.017782 - 30 December 2021

    Abstract This article aims to present new terms of single-valued neutrosophic notions in the Šostak sense, known as single-valued neutrosophic regularity spaces. Concepts such as r-single-valued neutrosophic semi £-open, r-single-valued neutrosophic pre-£-open, r-single valued neutrosophic regular-£-open and r-single valued neutrosophic α£-open are defined and their properties are studied as well as the relationship between them. Moreover, we introduce the concept of r-single valued neutrosophic θ£-cluster point and r-single-valued neutrosophic γ £-cluster point, r-θ£-closed, and θ£-closure operators and study some of their properties. Also, we present and investigate the notions of r-single-valued neutrosophic θ£-connectedness and r-single valued neutrosophic δ£-connectedness and investigate relationship More >

  • Open Access

    ARTICLE

    A Vanillin-Derived, DOPO-Contained Bisphenol as a Reactive Flame Retardant for High-Performance Epoxy Thermosets

    Li Wang1,2,#, Rongbai Tong3,#, Juanli Wang1,2,*, Jintao Wan1,2,*, Yuhu Li1,2, Pujun Jin1,2, Daodao Hu1,2

    Journal of Renewable Materials, Vol.10, No.5, pp. 1349-1364, 2022, DOI:10.32604/jrm.2022.019372 - 22 December 2021

    Abstract Quest for bio-based halogen-free green flame retardant has attracted many concerns in recent years. Herein a reactive functional flame retardant containing phosphorus VDP is synthesized from vanillin, 9,10-dihydro-9-oxa-10-phosphophene-10-oxide (DOPO) and phenol via a facile way. VDP is characterized with 1H NMR, 31P NMR, FTIR and Time of Flight Mass Spectrometry, and used as a new reactive flame retardant for bisphenol epoxy thermosets. Thermogravimetry analysis shows that when the VDP loading is only 0.5P% (based on phosphorus content), the residue increases from 14.2% to 21.1% at 750°C in N2 compare with neat DGEBA. Correspondingly, the limit oxygen index… More >

  • Open Access

    ARTICLE

    Reliability Analysis for Retaining Pile in Foundation Pit Based on Bayesian Principle

    Yousheng Deng, Chengpu Peng*, Jialin Su, Lingtao Li, Liqing Meng, Long Li

    CMES-Computer Modeling in Engineering & Sciences, Vol.130, No.2, pp. 1135-1148, 2022, DOI:10.32604/cmes.2022.018349 - 13 December 2021

    Abstract Moso bamboo has the advantages of high short-term strength and reproducibility, appropriating for temporary supporting structure of shallow foundation pit. According to the displacement of the pile top from an indoor model test, the reliability of the supporting effect of the moso bamboo pile was analyzed. First, the calculation formula of reliability index was deduced based on the mean-value first-order second-moment (MVFOSM)method and probability theory under ultimate limit state and serviceability limit state. Then, the dimensionless bias factor (the ratio of the measured value to the calculated value) was introduced to normalize the displacement. The… More >

  • Open Access

    ARTICLE

    On Some Properties of Neutrosophic Semi Continuous and Almost Continuous Mapping

    Bhimraj Basumatary1,*, Nijwm Wary1, Jeevan Krishna Khaklary2, Usha Rani Basumatary1

    CMES-Computer Modeling in Engineering & Sciences, Vol.130, No.2, pp. 1017-1031, 2022, DOI:10.32604/cmes.2022.018066 - 13 December 2021

    Abstract The neutrality’s origin, character, and extent are studied in the Neutrosophic set. The neutrosophic set is an essential issue to research since it opens the door to a wide range of scientific and technological applications. The neutrosophic set can find its spot to research because the universe is filled with indeterminacy. Neutrosophic set is currently being developed to express uncertain, imprecise, partial, and inconsistent data. Truth membership function, indeterminacy membership function, and falsity membership function are used to express a neutrosophic set in order to address uncertainty. The neutrosophic set produces more rational conclusions in… More >

  • Open Access

    ARTICLE

    Deep Learning Based Automated Diagnosis of Skin Diseases Using Dermoscopy

    Vatsala Anand1, Sheifali Gupta1, Deepika Koundal2,*, Shubham Mahajan3, Amit Kant Pandit3, Atef Zaguia4

    CMC-Computers, Materials & Continua, Vol.71, No.2, pp. 3145-3160, 2022, DOI:10.32604/cmc.2022.022788 - 07 December 2021

    Abstract Biomedical image analysis has been exploited considerably by recent technology involvements, carrying about a pattern shift towards ‘automation’ and ‘error free diagnosis’ classification methods with markedly improved accurate diagnosis productivity and cost effectiveness. This paper proposes an automated deep learning model to diagnose skin disease at an early stage by using Dermoscopy images. The proposed model has four convolutional layers, two maxpool layers, one fully connected layer and three dense layers. All the convolutional layers are using the kernel size of 3 * 3 whereas the maxpool layer is using the kernel size of 2… More >

  • Open Access

    ARTICLE

    Chaotic Whale Optimized Fractional Order PID Controller Design for Desalination Process

    F. Kavin1,*, R. Senthilkumar2

    CMC-Computers, Materials & Continua, Vol.71, No.2, pp. 2789-2806, 2022, DOI:10.32604/cmc.2022.021577 - 07 December 2021

    Abstract The main aim of this work is to design a suitable Fractional Order Proportionl Integral Derivative (FOPID) controller with Chaotic Whale Optimization Algorithm (CWOA) for a RO desalination system. Continuous research on Reverse Osmosis (RO) desalination plants is a promising technique for satisfaction with sustainable and efficient RO plants. This work implements CWOA based FOPID for the simulation of reverse osmosis (RO) desalination process for both servo and regulatory problems. Mathematical modeling is a vital constituent of designing advanced and developed engineering processes, which helps to gain a deep study of processes to predict the… More >

  • Open Access

    ARTICLE

    Protecting Data Mobility in Cloud Networks Using Metadata Security

    R. Punithavathi1,*, M. Kowsigan2, R. Shanthakumari3, Miodrag Zivkovic4, Nebojsa Bacanin4, Marko Sarac4

    Computer Systems Science and Engineering, Vol.42, No.1, pp. 105-120, 2022, DOI:10.32604/csse.2022.020486 - 02 December 2021

    Abstract At present, health care applications, government services, and banking applications use big data with cloud storage to process and implement data. Data mobility in cloud environments uses protection protocols and algorithms to secure sensitive user data. Sometimes, data may have highly sensitive information, leading users to consider using big data and cloud processing regardless of whether they are secured are not. Threats to sensitive data in cloud systems produce high risks, and existing security methods do not provide enough security to sensitive user data in cloud and big data environments. At present, several security solutions… More >

  • Open Access

    ARTICLE

    A549/DDP derived exosomes can affect cisplatin chemosensitivity via transporting CXCR4 to A549 cells

    MINGMING FANG1,#, NING GE2,#, JIANFANG LIU3,*, YAYUN CUI2,*

    BIOCELL, Vol.46, No.3, pp. 711-720, 2022, DOI:10.32604/biocell.2022.016714 - 18 November 2021

    Abstract The resistance of cancer cells to the anti-cancer drugs is the most important reason that affecting the efficacy of the non-small cell lung cancer (NSCLC) chemotherapy; thus, to explore the underlying mechanism of drug resistance of NSCLC medications is urgently needed for improving the therapeutic efficacy of current anti-NSCLC chemotherapies. The aim of the present study is to explore the roles of exosomes in the chemosensitivity of A549 cells and the related mechanism. A549 cells and cisplatin resistant cell line A549/DDP derived exosomes were isolated, and the expressions of CXCR4 were compared. Then, after cisplatin… More >

  • Open Access

    ARTICLE

    Optimal Hybrid Precoding Based QoE for Partially Structured Massive MIMO System

    Farung Samklang, Peerapong Uthansakul, Monthippa Uthansakul*, Patikorn Anchuen

    CMC-Computers, Materials & Continua, Vol.71, No.1, pp. 1887-1902, 2022, DOI:10.32604/cmc.2022.022139 - 03 November 2021

    Abstract Precoding is a beamforming technique that supports multi-stream transmission in which the RF chain plays a significant role as a digital precoding at the receiver for wireless communication. The traditional precoding contains only digital signal processing and each antenna connects to each RF chain, which provides high transmission efficiency but high cost and hardware complexity. Hybrid precoding is one of the most popular massive multiple input multiple output (MIMO) techniques that can save costs and avoid using complex hardware. At present, network services are currently in focus with a wide range of traffic volumes. In… More >

  • Open Access

    ARTICLE

    Algorithms to Calculate the Most Reliable Maximum Flow in Content Delivery Network

    Baili Zhang1, Keke Ling1,*, Pei Zhang2,3, Zhao Zhang2,3, Mingjun Zhong4

    Computer Systems Science and Engineering, Vol.41, No.2, pp. 699-715, 2022, DOI:10.32604/csse.2022.020193 - 25 October 2021

    Abstract Calculating the most reliable maximum flow (MRMF) from the edge cache node to the requesting node can provide an important reference for selecting the best edge cache node in a content delivery network (CDN). However, SDBA, as the current state-of-the-art MRMF algorithm, is too complex to meet real-time computing needs. This paper proposes a set of MRMF algorithms: NWCD (Negative Weight Community Deletion), SCPDAT (Single-Cycle Preference Deletion Approximation algorithm with Time constraint) and SCPDAP (Single-Cycle Preference Deletion Approximation algorithm with Probability constraint). NWCD draws on the “flow-shifting” algorithm of minimum cost and maximum flow, and… More >

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