The COVID-19 pandemic has profoundly affected almost all facets of peoples’ lives, various economic areas and regions of the world. In such a situation implementation of a vaccination can be viewed as essential but its success will be dependent on availability and transparency in the distribution process that will be shared among the stakeholders. Various distributed ledgers (DLTs) such as blockchain provide an open, public, immutable system that has numerous applications due the mentioned abilities. In this paper the authors have proposed a solution based on blockchain to increase the security and transparency in the tracing of COVID-19 vaccination vials. Smart contracts have been developed to monitor the supply, distribution of vaccination vials. The proposed solution will help to generate a tamper-proof and secure environment for the distribution of COVID-19 vaccination vials. Proof of delivery is used as a consensus mechanism for the proposed solution. A feedback feature is also implemented in order to track the vials lot in case of any side effect cause to the patient. The authors have implemented and tested the proposed solution using Ethereum test network, RinkeyBy, MetaMask, one clicks DApp. The proposed solution shows promising results in terms of throughput and scalability.

Vehicle automation is one of the main applications of industry 4.0 especially for tourism companies who provide their vehicles to migrants for traveling purposes. It is difficult to maintain trust among the travel agency and the customers. Although there are many existing solutions in the research that addresses the trust issues, but most of the solutions are based on centralized architecture such as cloud computing where the data is prone to various security threats. Motivated by the aforementioned discussion, the authors have proposed a vehicle tracking system based on the integration of blockchain and IoT in this paper. The proposed system will increase the trust among the entities by providing them transparency in tracking details of the vehicle. As the trip details are immutable and decentralized in nature, so, blockchain is used to store the details. Also, the system will generate the trip summary that contains the route detail, the number of kilometres travelled and the total cost of the trip. Tools such as Ethereum, Remix IDE, MetaMask, and RinkeyBy have been used to measure the performance of the system.

In today’s era of development, people are more industry-oriented and hence are shifting in different cities for their jobs as per their requirements. Such citizens are often occupied with their work life and they want everything to be done easily and quickly. They have limited time to explore and visit different places in order to search required commodities according to their needs. Additionally, traditional way to find anything or to advertise anything on lease is time-consuming and tedious task as one has to explore different applications for searching different commodities. Hence, to save the time and effort from the hectic schedules of individuals, an android application has developed namely ‘On Rent,’ which provides different services on a single platform. This platform equips the user to borrow and lend equipment like books and electrical appliances on rent. It also facilitates users to take accommodation on rent according to their needs.

Bees play a vital role in saving environment as they are the paramount agricultural pollinators and are the prior pollinators in the tropical ecosystem. Now a days, bees are in trouble as they are suffering from a mysterious condition known as colony collapse disorder in which honeybees leave their hives but fail to return back there because of the environmental activities done by the human. It caused a tremendous drop in the number of bees around the globe. The main reasons behind it are massive use of pesticides in agriculture, trading of bees by the humans and electromagnetic radiation emitted by the portable devices. In this research paper, importance of honeybees and the reason behind their disappearance has been studied.

This paper is completely focused on the difficulties faced by the paralyzed patients and the today technology help these patients to relief them. Currently the physical therapy, occupational therapy, respiratory therapy and the speech therapy are used to treat the patient who is suffers from paralysis. There is need of the device with this the paralyzed person convey his feelings like pain, hunger and loo. In this paper author purposed an electronic googles that can help the paralyzed person to convey his feelings using the eye blink pattern. The infrared sensor (IR) pair are used to detect the eye blinking pattern. When the IR rays strike to pupil it, large intensity of IR rays is reflected back. When the eye lashes are closed the less amount of IR radiation is reflected back. Two pair of infrared sensors are installed on the both glasses of the google. The blink pattern is pre-programmed in the microcontroller. ESP8266 microcontroller is used to process the all data coming from IR sensor. When the blink pattern is detected the message is sent to the care taker through internet connection.