Ola Adil Ibrahim¹, Gunawan Widjaja², Abdulhussien N. Alattabi³, Krishanveer Singh⁴, Yasser Fakri Mustafa⁵, P. A. Krovopuskov⁶, Mustafa M. Kadhim^7,*

FDMP-Fluid Dynamics & Materials Processing, Vol.18, No.4, pp. 1137-1151, 2022, DOI:10.32604/fdmp.2022.019921 - 06 April 2022

Abstract The objective of the presented study is to perform a vibration analysis and investigate the stability of a viscoelastic-fluid conveying pipe with an intermediate support. The mathematical model is elaborated in the framework of the Euler-Bernoulli beam theory in combination with the Kelvin-Voight viscoelastic approach. The resulting differential equation of motion and the related boundary conditions and compatibility conditions in the mid-span support are solved analytically using a power series method. The results show that an intermediate support located at ξ_s = 0.1 and ξ_s = 0.5 increases the critical velocity up to 35% and 50.15%, More >

Jin Su Kim¹, Min-Gu Kim¹, Jae Myung Kim^1,2, Sung Bum Pan^1,2,*

CMC-Computers, Materials & Continua, Vol.72, No.2, pp. 2997-3007, 2022, DOI:10.32604/cmc.2022.026572 - 29 March 2022

Abstract As fifth generation technology standard (5G) technology develops, the possibility of being exposed to the risk of cyber-attacks that exploits vulnerabilities in the 5G environment is increasing. The existing personal recognition method used for granting permission is a password-based method, which causes security problems. Therefore, personal recognition studies using bio-signals are being conducted as a method to access control to devices. Among bio-signal, surface electromyogram (sEMG) can solve the existing personal recognition problem that was unable to the modification of registered information owing to the characteristic changes in its signal according to the performed operation.… More >

Xuefeng Li¹, Keli Yin^1,* , Md Zahir Ahmed², Oli Ahmed³, Mary C. Jobe⁴, Fatema Akhter Hiramoni⁵

International Journal of Mental Health Promotion, Vol.24, No.3, pp. 347-359, 2022, DOI:10.32604/ijmhp.2022.019734 - 17 March 2022

Abstract Government city management is facing higher requirements with the development of the number of migrant workers. Therefore, improving their subjective well-being is a significant practical problem that the government must consider in public governance. This research discusses the influence of public service satisfaction on the well-being of urban migrant workers from the perspective of social comparison theory and the role of the sense of social equity and social conflict in the process of this influence. Using the structural equation modeling and moderated mediating mechanism analysis, the results show that: (1) the satisfaction of social and More >

Mehran Mokhtari¹, Homayun Motameni^1,*, Peyman Bayat²

Computer Systems Science and Engineering, Vol.42, No.2, pp. 659-675, 2022, DOI:10.32604/csse.2022.021729 - 04 January 2022

Abstract In this study, a new feature is added to the smart message passing interface (SMPI) approach (SMPIA) based on the prioritization method, which can completely eliminate the task starvation and lack of sufficient resources problems through prioritizing the tasks. The proposed approach is based on prioritizing the tasks and the urgency of implementation. Tasks are prioritized based on execution time, workload, the task with a more sensitive priority is executed earlier by the free source. The idea of demand-bound functions (DBFs) was extended to the SMPIA setting based on partitions and caps. For each task,… More >

Usman Inayat^1,*, Shaukat Iqbal¹, Tareq Manzoor²

CMES-Computer Modeling in Engineering & Sciences, Vol.130, No.2, pp. 751-776, 2022, DOI:10.32604/cmes.2022.018665 - 13 December 2021

Abstract In this contemporary study, theoritical investigation of nanofluidic model is thought-out. Two-dimensional nanomaterials based mixed flow is considered here. Convective solar radiative heat transport properties have been investigated over a nonlinearly stretched wall in the presence of magneto-hydrodynamic (MHD), by innovative application of semi analytical “optimal homotopy asymptotic method (OHAM)”. OHAM does not require any discretization, linearization and small parameter assumption. OHAM describes extremely precise order solutions without the need of computing further higher order terms, therefore, fast convergence is observed. Nanofluidic governing model is transformed into system of ordinary differential equations (ODEs) by exploitation More >

Debiao Meng^1,2,3,*, Hongtao Wang¹, Shiyuan Yang¹, Zhiyuan Lv¹, Zhengguo Hu¹, Zihao Wang¹

CMES-Computer Modeling in Engineering & Sciences, Vol.130, No.1, pp. 543-558, 2022, DOI:10.32604/cmes.2022.018123 - 29 November 2021

Abstract In a wind turbine, the rolling bearing is the critical component. However, it has a high failure rate. Therefore, the failure analysis and fault diagnosis of wind power rolling bearings are very important to ensure the high reliability and safety of wind power equipment. In this study, the failure form and the corresponding reason for the failure are discussed firstly. Then, the natural frequency and the characteristic frequency are analyzed. The Empirical Mode Decomposition (EMD) algorithm is used to extract the characteristics of the vibration signal of the rolling bearing. Moreover, the eigenmode function is More >

Komeil Raisian¹, Jamaiah Yahaya^2,*, Aziz Deraman³

Computer Systems Science and Engineering, Vol.41, No.1, pp. 271-288, 2022, DOI:10.32604/csse.2022.020496 - 08 October 2021

Abstract Software is a central component in the modern world and vastly affects the environment’s sustainability. The demand for energy and resource requirements is rising when producing hardware and software units. Literature study reveals that many studies focused on green hardware; however, limited efforts were made in the greenness of software products. Green software products are necessary to solve the issues and problems related to the long-term use of software, especially from a sustainability perspective. Without a proper mechanism for measuring the greenness of a particular software product executed in a specific environment, the mentioned benefits… More >

Nikita Jain¹, Vedika Gupta^1,*, Chinmay Chakraborty², Agam Madan¹, Deepali Virmani³, Lorenzo Salas-Morera⁴, Laura Garcia-Hernandez⁴

CMC-Computers, Materials & Continua, Vol.70, No.1, pp. 213-231, 2022, DOI:10.32604/cmc.2022.016424 - 07 September 2021

Abstract COVID-19 has become one of the critical health issues globally, which surfaced first in latter part of the year 2019. It is the topmost concern for many nations’ governments as the contagious virus started mushrooming over adjacent regions of infected areas. In 1980, a vaccine called Bacillus Calmette-Guérin (BCG) was introduced for preventing tuberculosis and lung cancer. Countries that have made the BCG vaccine mandatory have witnessed a lesser COVID-19 fatality rate than the countries that have not made it compulsory. This paper’s initial research shows that the countries with a long-term compulsory BCG vaccination… More >

Qiang Zhi^1,*, Zhengshu Zhou^2,3

Computer Systems Science and Engineering, Vol.40, No.1, pp. 357-374, 2022, DOI:10.32604/csse.2022.018759 - 26 August 2021

Abstract Enterprise Architecture (EA) has evolved based on the practice of information systems architecture design and implementation. EA is a rigorous description of a structure, and the objectives of EA modeling not only include clarifying corporate strategies, visualizing business processes, and modeling information systems to manage resources but also include improving organizational structures, adjusting information strategies, and creating new business value. Therefore, EA models cover a wide scope that includes both IT and business architectures. Typically, EA modeling is the initial and most important analysis step for researchers, architects, and developers. ArchiMate is the dominant modeling… More >

Syed Ali Raza^*, Ahsan Ullah, Shuang He, Yifeng Wang, Jiangtao Li

CMES-Computer Modeling in Engineering & Sciences, Vol.129, No.2, pp. 829-847, 2021, DOI:10.32604/cmes.2021.017360 - 08 October 2021

Abstract The distribution transformer is the mainstay of the power system. Its internal temperature study is desirable for its safe operation in the power system. The purpose of the present study is to determine direct comprehensive thermal distribution in the distribution transformers for different loading conditions. To achieve this goal, the temperature distribution in the oil, core, and windings are studied at each loading. An experimental study is performed with a 10/0.38 kV, 10 kVA oil–immersed transformer equipped with forty–two PT100 sensors (PTs) for temperature measurement installed inside during its manufacturing process. All possible locations for… More >