Title	Distributed Denial of Service Defense on Cloud Computing Based on Network Intrusion Detection System: Survey
Author	Esraa Samkari and Hatim Alsuwat
Citation	Vol. 22  No. 6  pp. 67-74
Keywords	DDoS, DoS, cloud computing attack, network intrusion detection, system detection.

Title	A Systematic Literature Review on Security Challenges In Image Encryption Algorithms for Medical Images
Author	Nora Almalki and Hatim Alsuwat
Citation	Vol. 22  No. 6  pp. 75-82
Keywords	Medical Image , Encryption , Steganography.

Title	An Intelligent Machine Learning Inspired Optimization Algorithm to Enhance Secured Data Transmission in IoT Cloud Ecosystem
Author	Sreejyothsna Ankam and Dr.N.Sudhakar Reddy
Citation	Vol. 22  No. 6  pp. 83-90
Keywords	Security, Cloud Computing, Cloud-IoT ecosystem, Optimization

Title	Modeling and Simulation of the Photocatalytic Treatment of Wastewater using Natural Bauxite and TiO2 doped by Quantum Dots
Author	Nidhal Becheikh, Aboulbaba Eladeb, Nejib Ghazouani
Citation	Vol. 22  No. 6  pp. 91-96
Keywords	Modeling, Simulation, Photocatalytic reaction, Microreactor, Micro-agitation.