iosr-JCE   Volume-23 ~ Issue-5 ~ Sep. - Oct. 2021

Abstract: Restaurant industry is one of the most profitable industries in the world over where incessant long waiting time may not only lead to customers' dissatisfaction but also facilitate loosing of customers to other competitors which may consequently result to total closure of such business if not properly investigated. In order to provide solution to the problem of long waiting time of customers especially in restaurant industry, Hierarchical Timed Coloured Petri Nets Model formalism was employed in this paper to model Restaurant Food Serving Process with multiple servers that serially and consecutively attend to individual customer at each serving point for effective services using a renowned restaurant in Ibadan metropolis, Oyo state, Nigeria as a case study. The developed HTCPN model is made up of two modules highest hierarchical module (environment page) and four sub-modules (serving point 1, 2, 3 and 4 modules). The developed HTCPN model can be adaptable to solve queue problem in any restaurant industry or relevant scenarios.

Key Word: Restaurant industry, Food Serving Process, Hierarchical Timed Coloured Petri Nets, Multiple servers

[1]. Raja, I.S., Muhammad, I., Naeem, A. Muhammad, A.P., and Asad, U.R. (2014).Customer Satisfaction in the Restaurant Industry; Examining the Model in Local Industry Perspective, Journal of Asian Business Strategy, 4(1): 123-120.
[2]. Odeniyi, L. A., Ganiyu R.A., Omidiora E.O. andOlabiyisi S.O.(2020), Determination of Customers' Arrival and Service Patterns for a Restaurant Food Service Process. Asian Journal of Research in Computer Science 5(4), 13-24.
[3]. Manjurul, A., Raisul, I., and Ashikul, A. (2014).Study of Queuing System of a Busy Restaurant and a Proposed Facilitate queuing System. Journal of Mechanical and Civil Engineering, 2, 31-35.
[4]. Mathias D., Hera, O. and Erwin, A. (2012). "Analysis of Expected and Actual Waiting Time in Fast Food Restaurants" Industrial Engineering Letters, 2, No. 5
[5]. Raid, A. (2010). Simulating Service Systems: Discrete Event Simulations Aitor, G. (Ed). Retrieved from: http://www.intechopen.com/books /discrete -event simulations/simulating-service-system. (Nov. 24, 2018)

Abstract: Picture straightening and edge conservation is an essential technique for image processing applications; the underlying smoothing character of an applicator for normalization is typically calculated. We answer this issue in this paper by recommending a new edge preservation pattern control, which combines color values into uniformly textured buildings to ensure the resulting image feasible more for the differentiation together with the Laplacian deblurring filter. Using this novel filter approach, we achieve significant efficiency gains in pictures over the benchmark dataset superior to filter alternatives version of edge-preserving technics. The process proposed demonstrates substantial objective and subjective progress in image consistency.

[1]. Zhenping Qiang, Libo He, Yaqiong Chen, Xu Chen, and Dan Xu, "Adaptive fast local Laplacian filters and its edge-aware application," Multim. Tools Appl., vol. 78, no. 1, pp. 619–639, 2019, doi: 10.1007/s11042-017-5347-9.
[2]. Jinsha Li, Daniel W. C. Ho, and Junmin Li, "Adaptive consensus of multi-agent systems under quantized measurements via the edge Laplacian," Autom., vol. 92, pp. 217–224, 2018, doi: 10.1016/j.automatica.2018.03.022.
[3]. Zhiwen Zeng, Xiangke Wang, and Zhiqiang Zheng, "Convergence Analysis using the Edge Laplacian: Robust Consensus of Nonlinear Multi-agent Systems via {ISS} Method," CoRR, vol. abs/1502.0, 2015, [Online]. Available: http://arxiv.org/abs/1502.06732.
[4]. Zeina Sinno and Alan C. Bovik, "Large Scale Subjective Video Quality Study," in 2018 {IEEE} International Conference on Image Processing, {ICIP} 2018, Athens, Greece, October 7-10, 2018, 2018, pp. 276–280, doi: 10.1109/ICIP.2018.8451467.
[5]. Dongqing Xu, Xiuyou Wang, Gang Sun, and Huaimin Li, "Towards a novel image denoising method with edge-preserving sparse representation based on laplacian of B-spline edge-detection," Multim. Tools Appl., vol. 76, no. 17, pp. 17839–17854, 2017, doi: 10.1007/s11042-015-3097-0..

Abstract: TCP Reno and TCP Vegas work well in wire network, but they do not work properly in wireless network, because they take packet losses or timeout as the signal of congestion. However, in wireless network, temporary link outages or fading-induced bit errors will result in packet losses, so TCP will decrease CWND improperly. Some differences of TCP have been developed to improve the transport protocol performance for wireless network. It is to hide any reduction not related to congestion from the sender, so that the sender can only detect the packet losses due to congestion, such as I-TCP or snoopy protocol. However these protocols are not fit for Ad Hoc network in which there are.....

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Abstract:This article describes the design and development of a mobile application for the management of means of transport, more specifically Taxis (Smart Taxi). The system is proposed for 2 actors represented by the owners of the Taxis and the drivers. It was modeled by an agile method namely the agile Scrum framework. The mobile application was developed using the FireBase database for real-time data viewing and the Flutter framework. This work was carried out within a cooperation between ISET of Nabeul and the company CubeIT..

Key Word: Smart Taxi, Mobile application, secured access, FireBase, car location

[1]. Transports et déménagements, https://www.transports-et-demenagement.com/le-taxi-pour-une-qualite-accrue-du-service-du-transport
[2]. Android Studio, https://en.wikipedia.org/wiki/Android_Studio.
[3]. A quoi sert Firebase la plateforme mobile de Google ? ,https://junto.fr/blog/firebase/
[4]. Apprendre le langage de programmation Dart, https://www.udemy.com/fr/topic/dart-programming-language/
[5]. Agile Alliance, Scrum Master, https://www.agilealliance.org/glossary/scrum-master

Abstract: Since the dawn of the cyberspace age, cybercrime has evolved such that its scope and number of its forms now belie the original aims at the heart of the invention of the computer and the internet. Today, there are dozens of different forms of cybercrime, all with severe impacts for the finances, mental health, and physical safety of people, and consequently negative impacts for the economy and political orderliness of whole nations. These forms; privacy invasion and identity theft, cyber terrorism, child pornography and cyberbullying, are defined and their unique attributes are described. Finally, approaches to detection pertinent to each form of the cybercrime are delineated. The intent of the study is the identification of different forms of cybercrime to assist computer and internet users so that they do not fall victim to them.

Key Word: Computer, Cyber Terrorism, Cyberbullying, Cybercrime, Identity Theft, Internet

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[5]. Dragan, A. T. (2018). Child pornography and child abuse in cyberspace. Journal of Legal Studies "Vasile Goldiş", 21(35), 52-60.

Abstract: In today's fast-paced world, application security is critical. A backdoor is a way for attackers to get access to a system in order to carry out illegal activities or infringe on users' rights. It has created a severe security risk to networks. As a result, it is critical to implement proper defensive measures against such attacks. In the present study, the problem of web backdoor detection and prevention has been accomplished. The investigation of the various installation methods and concealment techniques employed by web backdoors is performed. The three areas of web backdoor detection and protection: server configuration and reinforcement, intrusion detection systems, and static analysis is covered in the current study. In addition, a detection and prevention strategy for PHP backdoors that combines a whitelist along with dynamic analysis is demonstrated. By detecting sensitive functions, this method can entirely block web backdoors and has no false positives.

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[3]. O. Starov, J. Dahse, S. S. Ahmad, T. Holz, and N. Nikiforakis, "No honor among thieves: a large-scale analysis of malicious web shells," in Proceedings of the 25th International Confer- ence on World Wide Web, pp. 1021–1032, Montre´al, Canada, April 2016.
[4]. C. Wang, H. Yang, Z. Zhao, L. Gong, and Z. Li, "The research and improvement in the detection of PHP variable webshell based on information entropy," Journal of Computers, vol. 28, pp. 62–68, 2016.
[5]. M. Peter and B. V. W. Irwin, "Towards a PHP webshell taxonomy using deobfuscation-assisted similarity analysis," IEEE, in Proceedings of the 2015 Information Security for South Africa (ISSA), pp. 1–8, Johannesburg, South Africa, August 2015.