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  • Open Access


    Numerical Simulation of Heat Transfer of High-Temperature Slag Flow Inside the Blast Furnace Slag Trench

    Guangyan Fan, Fuyong Su*, Cunwang Li, Bin Li

    Frontiers in Heat and Mass Transfer, Vol.21, pp. 281-292, 2023, DOI:10.32604/fhmt.2023.043221

    Abstract To investigate the flow and heat transfer process of blast furnace slag through the slag trench after the slag is discharged, a three-dimensional physical model is established and simulated according to the actual size of the slag trench and the physical properties of the high-temperature slag. The temperature fied and flow field distribution of the high-temperature slag liquid inside the slag trench is obtained by numerical simulation under different working conditions, and the effects of operating conditions such as slag trench inclination, high-temperature slag inlet flow rate, and inlet temperature are investigated. The results show that the flow rate of… More >

  • Open Access


    Study on the Application of Vibration Isolation by Using a Trench in Frame Structures

    Pinwu Guan1, Zheng Ma1, Pu Zhang1, Shizhan Xu1,*, Wei Liu2, Yanwei Guo2, Xin Yang2, Zhen Wang2, Haibo Wang2, Chao Yuan2, Jie Wang2

    Structural Durability & Health Monitoring, Vol.17, No.1, pp. 23-36, 2023, DOI:10.32604/sdhm.2023.011383

    Abstract An isolation trench is a simple and effective method to isolate structural vibrations originating from sources of vibration other than earthquakes (machines, traffic, explosions, etc.); however, there is still not a conclusive depth of the isolation trench for frame structures. To investigate the isolation effect of a trench in the frame structure designed for ground vibration, both a field test and finite element analysis were conducted to analyze the reduced effect of the vibration. The vibration reduction analysis was based on the dynamic equation and wave theory. Considering the vibration control of an industrial plant frame, a soil-trench-building finite element… More >

  • Open Access


    Timer Entrenched Baited Scheme to Locate and Remove Attacks in MANET

    S. Padmapriya1, R. Shankar2, R. Thiagarajan1,*, N. Partheeban3, A. Daniel3, S. Arun4

    Intelligent Automation & Soft Computing, Vol.35, No.1, pp. 491-505, 2023, DOI:10.32604/iasc.2023.027719

    Abstract The Mobile Ad-hoc Network (MANET) is a dynamic topology that provides a variety of executions in various disciplines. The most sticky topic in organizational fields was MANET protection. MANET is helpless against various threats that affect its usability and accessibility. The dark opening assault is considered one of the most far-reaching dynamic assaults that deteriorate the organization's execution and reliability by dropping all approaching packages via the noxious node. The Dark Opening Node aims to deceive any node in the company that wishes to connect to another node by pretending to get the most delicate ability to support the target… More >

  • Open Access


    A Novel Trenchless Detection Technology Based on Transient Electromagnetic Method for Power Poles

    Lingda Xu1, Dandi Zhang2, Jun Zhou3,*, Zhou He2, Xiao Fang2, Yonglin Zhi1

    Energy Engineering, Vol.117, No.1, pp. 19-26, 2020, DOI:10.32604/EE.2020.010409

    Abstract For the application of inspecting the construction status of distribution network poles, this paper proposed a novel detection technology for base plates, pulling plates, chucks (abbreviated as BPC) which are buried together with the power poles based on exerting external current excitation. The detection system consists of lead wires for BPC, an excitation generating circuit, a signal receiving coil, a signal conditioning circuit and an embedded processor. Compared with the traditional transient electromagnetic method, this technology is more suitable for detecting BPC which are buried shallowly, with higher sensitivity for depth changes and higher signal-to-noise ratio. Moreover, it can judge… More >

  • Open Access


    Modelling and Validation of Contribions to Stress in the Shallow Trench Isolation Process Sequence

    K. Garikipati1, V.S. Rao2, M.Y. Hao3, E. Ibok4, I. de Wolf5, R. W. Dutton6

    CMES-Computer Modeling in Engineering & Sciences, Vol.1, No.1, pp. 65-84, 2000, DOI:10.3970/cmes.2000.001.065

    Abstract This work is based upon a careful rendering of mechanics and mathematics to describe the phenomena that influence the stress engendered by the Shallow Trench Isolation process. The diffusion-reaction problem is posed in terms of fundamental mass balance laws. Finite strain kinematics is invoked to model the large expansion of SiO2, dielectrics are modelled as viscoelastic solids and annealing-induced density relaxation of SiO2 is incorporated as a history-dependent process. A levelset framework is used to describe the moving Si/SiO2 interface. Sophisticated finite element methods are employed to solve the mathematical equations posed for each phenomenon. These include the incorporation of… More >

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