The global concern about a new pandemic associated with the insufficiency of vaccines has necessitated basic practices of handwashing to get prevention in Covid-19 disease in modern health issues. At this point, due to that, the researchers develop a simple mobile application engaging augmented reality to educate the urban and rural community on a notable effect of basic infection prevention practices peculiarly on hand wash guidance to prevent Covid-19infection. A quality of a hand wash could be attained by washing hands in conformity with health standard guidelines. In this study, we analyze a sample size of 83 participants (n=83), there were categorized by age, young adult (ages 15 to 35, n=28), middle-age (36 to 55, n=28) and older adults (older than 56 years, n=27) through three main formulated hypotheses namely as a step, movement, and duration and being analyzed by SPSS version 25by using Anova. The differences in demographics and gender are not being compared amongst the group. The final result underlying a statistical significance draws two significant factors for step and movement and there was no significant effect at the time factor of utilizing this mobile application. Hence, the final result could mitigate the Malaysian government sector peculiarly to the health department to alleviate the load of educating a community about a proper hand wash that would ease the process.
The public key cryptosystem is fundamental in safeguard communication in cyberspace. This paper described a new cryptosystem analogous to El-Gamal encryption scheme, which utilizing the Lucas sequence and Elliptic Curve. Similar to Elliptic Curve Cryptography (ECC) and Rivest-Shamir-Adleman (RSA), the proposed cryptosystem requires a precise hard mathematical problem as the essential part of security strength. The chosen plaintext attack (CPA) was employed to investigate the security of this cryptosystem. The result shows that the system is vulnerable against the CPA when the sender decrypts a plaintext with modified public key, where the cryptanalyst able to break the security of the proposed cryptosystem by recovering the plaintext even without knowing the secret key from either the sender or receiver.
Energy saving is something that being focus deeply either larger or smaller industry in this current era especially steam and electricity. In a crude palm oil mill, tons of fibers and woods are used for burning process as a boiler fuel to generate steam. As steam is good heat transfer medium, it is use for the regular process of heating the product or materials by direct and batch heating to raise the temperature in order to change the characteristic. In typical palm oil mill, every 1000kg of fresh fruits bunches (FFB) required 250kg of steam energy for the sterilization process. It is not surprising that the exhaust lost that release to the atmosphere from the total steam usage is about 70%, which can conclude as energy waste. By referring to this issue, the cost of replace consumable boiler fuel increase tremendously. Besides that, the huge amount of heat release caused the thermal pollution that may have significant effects in the ecological balance and lead to changes in the aquatic fauna and flora. This paper reviews and critically discusses the waste of steam energy and the morphology involved in excess steam from sterilizer. The system that combined with few steps of steam recovery were developed to recovery the low-pressure steam to form the mid-pressure steam that can able to reuse at the process plant. The steam ejector technology is use in this research to recover and reuse the excess steam leading to lower energy consumption and fuel costs. The overall idea is about combining the low-pressure excess steam with high-pressure steam that directly supply from back pressure receiver to form the mid-pressure steam. The Ansys software used as to identify the change of parameter of excess steam and through the software, the percentage of motive steam needed to combine with excess steam finalized. Via recovery and reuse the excess steam from sterilizer, the total energy consumption will be minimized at least 20% which can able to reduce the massive expenses for boiler fuel that benefit the palm oil mill owners.
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