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With the emergence of Web 2.0 and growth of digital content users, this paper considers the effects of digital content characteristics (content, design, and technology) on the usefulness, concentration, and usage intention of digital content. Our results reveal that the aforementioned content characteristics do indeed affect both the usefulness and concentration of digital content. Whereas the technological characteristics of digital content positively affect both the usefulness and concentration of digital content, the design characteristic was associated solely with the usefulness of digital content. While of interest per se, the results provide both theoretical and practical insight. A theoretical foundation for future digital content-related studies is given in terms of understanding digital content characteristics and their effects on user behavior. Practically, valuable insights are provided for managers wishing to establish digital content business strategies and digital service plans based on the characteristics of digital content.

In order to control the exposure of information outside using plain text communication between IoT devices on the MQTT protocol network, each device generates and shares a symmetric encryption key and then encrypts and decrypts communication messages with the key. We proposed, implemented, and verified an end-to-end encryption process that each device communicates with encrypting and decrypting only the payload of Publish Control Packet at MQTT protocol network.

The change in the power demand results in modification of frequency of interrelated power system amongst the dissimilar areas. The load frequency control can be attained by proper regulation of participating producing elements. The Area Control Error (ACE) has to be minimized for the frequency response enhancement and Integral Square Error (ISE) is generally taken as ACE. The aim of Load Frequency Control (LFC) is to diminish the Integral Square Error to Nil with constant variation of claim of dynamic energy so that the entire produced energy of the arrangement and load obligation correctly matches with every element. In this paper, results of multi area interconnected power system under Unilateral Contract are verified with the assistance of conventional controllers.

Today, there is a developing requirement for observation so as to keep up the dignity at a spot and guarantee the wellbeing and security of its kin. An airborne observation framework will be advantageous in such a manner. This paper depicts how an ethereal reconnaissance framework can be assembled utilizing an unmanned flying vehicle or an automaton. We start by depicting the highlights of our ethereal observation framework and afterward talk about a portion of the advances that we have utilized in building it. From that point onward, we notice how we have consolidated those innovations into an automaton and have made them cooperate amicably so as to accomplish our goal. This goal will be achieved with the help of cloud services and cellular service using 5G technology. It tends to be utilized in peacekeeping exercises and furthermore constant observing of a spot whenever of the day. The point is to give quick and productive reconnaissance at a moderate rate with the goal that it tends to be utilized broadly at the private, institutional and administrative levels.

The exponential increase of COVID-19 cases around the world has yielded out one of the biggest concerns regarding health care. Keeping this view in mind, we have tried to resolve this issue by by exploring the transport opportunities in the vertical length above the lane. Drones are aerial robots that fly in different conditions and areas, also known as unmanned air vehicles (UAVs), and can perform various missions. In the past few years, drone distribution has been a trending subject in the field. Current techniques target either remote areas or rely on consolidated drop-off locations from which the final mile distribution is carried out. We address the dilemma of autonomous lastmile distribution in urban environments using an off-the-shelf drone in this article. Toodles is a freight delivery drone designed to land and take off vertically, have the address of the customer to carry the cargo and deliver the cargo packet. We also built a device which can use GPS to travel to the approximate delivery destination and then locate the exact drop-off spot. APM 2.8 - A common and stable commercial flight control system, due to its open-source software, its availability and its ample networking opportunities for additional peripherals, is chosen to provide the sensing and control functions. The flight controller, propeller and brushless motors are the main components of the machine.