iosr-JCE   Volume-25 ~ Issue-3 ~ May - June 2023

Abstract: For years' data has been a critical part of the technology and data has been perceived with the growth in technology and the population. This data is often referred to as NoSQL and unstructured data. Over the period of time, it is growing in complexity for traditional database management systems to manage some enormous databases in a virtual cloud environment. Nowadays different cloud services are offered like NoSQL databases to manage such Non-relational data which is dressing different requirements like availability, reliability, performance, safety as well as security. Hence there is a need to evaluate processes and find results in the performance and behavior of different NoSQL databases HBase and Cassandra using YCSB. The scale of big data will come from different sources it will be.....

Key Word: Big Data, Hadoop, NoSQL Databases, Cassandra, HBase, YCSB Application.

[1]. Ahmed, M. Razu, M. Arifa Khatun, A. Ali, and Kenneth Sundaraj. "A literature review on NoSQL database for big data processing." Int. J. Eng. Technol 7, no. 2 (2018): 902-906. "Apache HBase Architecture Overview." https://hbase.apache.org/book.html Accessed on: 04-08-2021.
[2]. Jakkula, Prashanth. "HBase or Cassandra? A Comparative Study of NoSQL Database Performance." International Journal of Scientific and Research Publications 10, no. 3 (2020): 808-820. "Apache Tephra." https://tephra.apache.org/ Accessed on: 04-08-2023.
[3]. Jakkula, Prashanth. "HBase or Cassandra? A Comparative Study of NoSQL Database Performance." International Journal of Scientific and Research Publications 10, no. 3 (2020): 808-820.
[4]. Khattab, AbdAlhamid, Alsayed Algergawy, and Amany Sarhan. "MAG: A performance evaluation framework for database systems." Knowledge-Based Systems 85 (2015): 245-255.
[5]. Kabakus, Abdullah Talha, and Resul Kara. "A performance evaluation of in-memory databases." Journal of King Saud University-Computer and Information Sciences 29, no. 4 (2017): 520-525..

Abstract: V-slot loaded Triangular patch antenna analysis using Machine learning ANN technique. Initially fractal antenna is designed and analyzed using HFSS tool. The training data is generated from the HFSS tool. Later, training data is applied to ML Random Forest. A triangular patch with a relative permittivity of 4.4 and a thickness of 0.6 mm is developed on a FR4 substrate and mounted 6 mm above the ground plane. With consistent pattern properties, like gain and cross polarisation, within its bandwidth, bandwidth as high as 9.2% are attained. This design technique involves inserting a single feed and two small slots in the shape of a V on the microstrip antenna......

Key Word: HFSS Tool, Python, ML-Algorithms, Linear Regression, Decision Tree Regressor, Random Forest Regressor, Elastic net, Lasso..

[1]. C. Aissaoui, A. Benghalia, "Comparison of resonant frequencies of rectangular, isosceles and equilateral micro strip antennas having the same patches surface",2012 IEEE conference, Algeria.
[2]. A.A. Deshmukh, "Broadband gap -coupled isosceles triangular microstrip antennas",2017 international conference on emerging trend & innovation in ICT, pune, India.
[3]. Amit A. Deshmuk," Broadband 90o isosceles triangular microstrip antenna",2015 fifth international conference on advances in computing and communications, Mumbai, India.
[4]. James, J.R. and Hall, P.S.: "Handbook of Microstrip Antennas" (Peter Peregrinus).
[5]. Constantine A. Balanis : "Antenna Theory, Analysis and Design" (John Wiley & Sons)..

Abstract: The scope of the establishment of internetworking security is large enough that requires special attention to details to realize its ultimate wholesome state. As soon as the Data/Information is placed in a medium to transmit over to the next hop, it is at risk of being fabricated by the Man-in-the-middle. Over the years many encryption/decryption algorithms were invented to ensure the integrity and authenticity of the content co compiled at the sender end. Cryptography is a subset of cryptography that only deals with encrypting data that can be passed through secure channels along with keys to ensure security.......

Key Word: Cryptology, Cryptography, Crptanalysis, Symmetric Key Encryption, Assymetric Key Encryption, Man-in-the-middle.

[1]. https://techblogs.42gears.com/encrypt-and-decrypt-a-message-using-des-algorithm-in-python/
[2]. Maqsood, F., Ahmed, M., Ali, M. M., & Shah, M. A. (2017). Cryptography: a comparative analysis for modern techniques. International Journal of Advanced Computer Science and Applications, 8(6).
[3]. Hercigonja, Z. (2016). Comparative analysis of cryptographic algorithms. International Journal of Digital Technology & Economy, 1(2), 127-134.
[4]. Jeeva, A. L., Palanisamy, D. V., & Kanagaram, K. (2012). Comparative analysis of performance efficiency and security measures of some encryption algorithms. International Journal of Engineering Research and Applications (IJERA), 2(3), 3033-3037.
[5]. Thambiraja, E., Ramesh, G., & Umarani, D. R. (2012). A survey on various most common encryption techniques. International journal of advanced research in computer science and software engineering, 2(7).