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Yuvraj Singh1*,Nurnabi Sk2,Shubham Mitra3,Ratri Bhattacharjee4,Soumendra Pain5,Pijush Kanti Ghosh6,Kaushik Ghosh7

BLUETOOTH CONTROLLED HOME AUTOMATION SETUP USING ARDUINO

[Vol. 02 (01), December, 2021, pp. 01-06]

The main objective of designing this project is to automate appliances of interest. During the past few years, immense hard work has been placed to automate objects which essential human involvement earlier. One of the processes is Home Automation. This manuscript aimed at controlling appliances in our home with the help of smartphones. This is designed by interfacing Arduino Uno R3 with a Bluetooth module and connecting the Bluetooth module with the smartphone thereby switching the control of appliances directly with a smartphone. A relay is also used to switch on or off the appliances as per the command given by the user.

Sourav Dey1*, Chiradip Pal 2,Amlan Dutta3

SHEET METAL CUTTING MACHINE BY USING SOLENOID VALVE

[Vol. 02 (01), December, 2021, pp. 72-76]

The sheet metal cutting process has a vital role in all kind of industries. Generally in medium and small scale industries this machine is manually hand operated. In our project is SHEET METAL CUTTING MACHINE BY USING SOLENOID VALVE . Automation in the modern world is inevitable. Any automatic machine is designed for the economical use of man, machine, and material worth the most. In our project solenoid valve is key for the automation. The working principle of pneumatic double acting cylinder is mainly involved in the sheet metal cutting machine. The piston is associated to the moving cutting tool and thus sheet metal is cut into the small sizes. As the machine is portable in size it s easy to transport.

Surajit Dey1*, Santu Kundu2, Sarada Mallik3,Abhishek Pal4

DEVELOPMENT OF A PROBLEM SOLVING SUPPORT FOR AN INTELLIGENT TUTORING SYSTEM

[Vol. 02 (01), December, 2021, pp. 77-88]

Recent changes in technology make it possible to distribute Intelligent Tutoring System so that students can benefit from adaptive software. Many social benefits can flow from wider access to ITSs. An extensible architecture is described for deploying Intelligent Tutoring System in student- centered manner. Authoring tools now exists which trade the depth of intelligence to make ITSs accessible to less technically skilled students.ITS attempts to bring in aspect human-teacher delivering personalized tutoring to a student. This paper highlights on developing tutoring system which will teach quadratic equation by factoring to the students effectively as human teacher does. This paper focuses on the various modules of ITS and also focuses primary duty of an ITS which is problem solving support means providing support when student faces any problem during problem solving

Kaushik Mukherjee1*, Ujjal Kar2, Bholanath Ghosh3, Kaushik Ghosh4, Samya Neogi5

SENSING MECHANISM INVOLVED IN SEMICONDUCTING METAL OXIDE GAS SENSOR: A BRIEF OVERVIEW

[Vol. 02 (01), December, 2021, pp. 89-94]

The present study incorporates gas sensing mechanism for a chemi-resistive type sensor using semiconducting metal oxides (SMO) as sensing material. A detailed view of the interaction process between the target gases and sensor surface has been included with some vital examples of SMO sensor. Furthermore, the advantages and disadvantages of SMO sensor have also been discussed. To explore the sensing mechanism in a better way, different models and influencing factors in gas sensing are included and discussed. So, in this paper we report a focused study on the sensing mechanism of semiconducting metal oxides helpful to explore and correlate different sensing characteristics of the material.

Sukalpa Dey1*, Sanjoy Satpati2, Aditya Suhasaria3, Dipankar Sukul4

CORROSION INHIBITION OF MILD STEEL IN AQUEOUS H2SO4 BY THE BIOMOLECULES GUANINE AND GUANOSINE

[Vol. 02 (01), December, 2021, pp. 95-106]

A pyrine base, guanine and its corresponding nucleoside, guanosine are tested as eco-friendly green corrosion inhibitors for mild steel in 0.5 M aqueous H2SO4. Both electrochemical and weight loss techniques are employed for the investigation. Results indicate both the inhibitors exert almost identical inhibition efficiency (around 70% at 3 mM concentration level) with guanosine having slightly greater inhibitory effect. From adsorption isotherm study, types of adsorptions, i.e., physical or chemical has been ascertained. Quantum mechanical study (DFT) allows to indicate the atoms or group of the inhibitor molecules involved in electron donation to the metal or the retro-donation.