International Research Journal on Advanced Science Hub

Increasing fuel prices and emission norms have favoured the automobile manufactures the use of lightweight materials. Land fill regulations imposed by many environmental governing agencies encourage the use of products which will decompose easily or which will require lesser energy for recycling. In this scenario, an effort has been made to build natural fibre hybrid composites combining natural and synthetic fibres to solve the problems of environmental impact and energy wasted on recycling in this study. In this work the flexural, compression, interlaminar shear stress and low velocity impact properties of composites reinforced with plies containing carbon fibres in the weft direction and E-glass fibres in the warp direction, parallel oriented sunn hemp mats and 40 µ SiO2 particles are investigated for possible application in automobiles. It is observed that the reinforcement of the composite with 40 µ SiO2 particles enhances the flexural, compression, interlaminar shear strength and low velocity impact properties of the composite.

This paper presents the Hybrid Modulation Technique for single phase AC-AC multi-Frequency converter to overcome the local square wave overshoot in output waveform which are responsible for harmonics content in converter and to get better smooth voltage waveform. And also, by using SPWM (Sinusoidal Pulse Width Modulation) and TPWM (Trapezoidal Pulse Width Modulation) a comparative analysis is done; it shows the how converters behave with different modulation technique. The detail study of converter and modulation techniques are done here with including operation, block diagram and mathematical calculations. All the studies and experimental operation are performed by using MATLAB Simulink model simulation and the switch is used for converter is MOSFET

The Covid-19 pandemic has made a huge impact on the e-commerce industry. The industry has experienced some benefits and problems during the pandemic. People tend to buy more items online as it can be more secure when it comes to the spread of disease. The reports are saying that overall e-commerce industry is having an increased sales growth. Many methods and techniques are being used by the e-commerce industry to make-up the negative impacts that happened to online business during the Covid-19 pandemic. This study is done to deeply analyse the problems and factors that are affecting the Online businesses and to know about the situations of e-commerce business in different parts of the world.

There was a big question about the transition to online learning on around the world, could it motivate student as good as the traditional methods? This study is aimed at finding out the effectiveness of virtual discussion for improving motivation of students during the Covid-19 pandemic. A total of sixty Christian students of State Vocational High School Malang were involved in the study, separated in two classes. The first class was treated with virtual discussion method and the other class as a control class. This study used a quasi-experimental research design, and analyzed using a paired sample t-test. The result obtained sig. 0.000 less than 0.05, showed a significant difference in the mean scores, indicated that virtual discussion was effective for improving motivation of students. From the finding, it is recommended to use virtual discussion in Christian education, against Covid-19 pandemic effect.

In this paper we have proposed a room sanitation robot. The world around us is facing new threats day by day, latest being the corona virus. Social distancing, wearing masks, sanitizing the hands and disinfecting rooms are some precautionary measures to be taken against this deadly virus. Hence our project aims at disinfecting the rooms by deploying robots instead of manpower. Steriloid is a sanitizing robot which can be used to sanitize rooms, pathways, roads etc. It can be controlled in two modes manually or automatically. In the Automatic mode, the robot moves around the room with the help of two ultrasonic sensors. The sensors detect the obstacle while the robot is in motion and control the robot accordingly. In the Manual mode, complete control of the robot is in the user's hands. A mobile application is used to control the robot via a Bluetooth module. So the robot can move to any location. Sanitizer or sanitizing liquid is filled inside a reservoir and a pump is placed inside it. When the robot starts moving, the pump can be turned on from the mobile or manually and it starts sanitizing the room.

The world has witnessed a standstill moment because of outbreak of coronavirus not sparing anyone across ethnicity, be it rich or poor, black or white, east or west, north or south. The pandemic has affected various sectors, education being one of it. According to UNESCO, close to 900 million learners have been affected by the closure of educational institutions. (11) Due to this pandemic, the educational institutions have to move from conventional mode of parting education to online mode. The research paper highlights advantages and disadvantages of imparting education through online mode during the pandemic situation.

After the outbreak of Covid-19 pandemic there had been huge changes in the shopping behaviour of customers across world. From bulk buying to online shopping there is a major change in what, when and how people are buying. As people are avoiding going to public places, online shopping has become even more prominent now. This paves the way for the online shopping stores giving them competitive advantage over traditional shopping stores. Amazon and Flipkart, which are the two most leading online shopping stores have also been beneficially affected by this shift of customer purchasing behaviour. Both Amazon and Flipkart are seeing accelerated growth in online sales fuelled by first time buyers and sellers from small towns. In this study the overall customer attitude towards the two sites is measured and compared with the help of Fishbein Multi-Attribute Model. An analysis is done to determine the important attributes that matters more to the customers ,on which these online sites need to focus on and also the perception of customers on performance of  the two sites on those attributes is assessed.

Education is continuing its journey since man is on earth. It may be the nature taught man in the yester years, gurukulas in the golden period of many kings, Government Schools and colleges’ post-independence era and convents, international schools, deemed universities in the 21st century, its common objective of all these institutions is to educate the human race. Education is not just reading the books and getting a degree from a University, it is the holistic development of an individual physically, mentally, financially and economically. The aim of education is to bring overall development of an individual and make him today a productive citizen, for tomorrow’s nation. Every country develops its education system to express and promote its unique socio-cultural identity and to meet the growing demand of job and career opportunities. The country has reached a stage in economic and technological progress and efforts must be made to ensure that the fruits of change reach all the sections of the society. The National Education Policy- 1986 focused on common curriculum framework that contains a common core along with other components that are flexible. Child-centric approach is given prominence in elementary education, followed by secondary education giving prominence to girl child education and SC, ST and BC categories of education. The National Education Policy-2020, which is reformed after 34 years, emphasized more on holistic approach with multi-disciplinary courses and students are facilitated with bucket system of choosing subjects of their interest. This paper focuses on the comparative study on the highlighted aspects of NEP of both 1986 and 2020.

The Covid-19 pandemic has made a huge impact on the e-commerce industry. The industry has experienced some benefits and problems during the pandemic. People tend to buy more items online as it can be more secure when it comes to the spread of disease. The reports are saying that overall e-commerce industry is having an increased sales growth. Many methods and techniques are being used by the e-commerce industry to make-up the negative impacts that happened to online business during the Covid-19 pandemic. This study is done to deeply analyse the problems and factors that are affecting the Online businesses and to know about the situations of e-commerce business in different parts of the world.

This report aims to give an overview of a standalone automatic fan speed controller that controls the speed of an electric fan according to our requirement. With the help of the embedded technology makes more efficient and reliable with this closed loop feedback control system. This project is the Temperature Based Fan Speed Control & Monitoring with the help of the Arduino UNO and LM35 Temperature Sensor. In this the microcontroller controls the speed of an electric fan according to the requirement & allows faster control and the LCD display makes the system user-friendly. The LCD panel displays the Sensed temperature in Celsius Scale and fan speed in percentage simultaneously.

Cyber bullying is a threat to the persons who are very socially active in various social media platforms. So, in this paper we deal with what is cyber bullying and types of it. We also discuss about the cyber bullying taking place at various places like school, college, university etc.Even we conducted a small survey and unstructured interviews with the teachers, professionalisms about the cyber bullying. So in the results we discuss about the survey and interview results after properly analyzing it. We also give some of the way that how to stop cyber bullying and its limitations to fight with it easily

This Paper presents the fabrication and concept of four way hacksaw blade machine mainly carried out for production-based industries. Industries are basically meant for production of useful goods and services at low production cost, machinery cost and low inventory cost. Today in this world every task has been made quicker and fast due to technology advancement but this advancement also demands huge investment and expenditure, every industry desire to make high productivity rate maintaining the quality and standard of the product at low average cost. We have developed a prototype model of a Hacksaw machine. This project consists of a crank and slider mechanism along with linear bushing. These machines can be used in remote places where electricity is regular. It is designed as a portable one which can be used for cutting in various places. It can be used for operating on materials like thin metals, wood. We include Design Thinking process from SNS college of technology to do this experiment. The stages of Design Thinkers are Empathize, Define, Ideate, Prototype & test, Evolve.