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For the normal working of the electrical apparatus customers want an uninterrupted flow of sinusoidal voltage and current of continual magnitude and frequency at the AC mains. Although the generated voltage at power plants is almost sinusoidal but our current power system has wide range of electrical apparatus some of which are non-linear in nature which causes complications in the power supply. Also, few other unavoidable conditions like lightning strike and faults also induces power quality complications. Various FACTS devices are utilized to eliminate any power quality concerns in current and voltage signals. One of these numerous devices is the unified power quality conditioner (UPQC), and this paper provides a literature overview on the subject.

Metaheuristic algorithms, in the field of engineering, have attracted researchers for problem-solving of complex and non-linear optimization. Many algorithms have been designed to address wide-ranging applications such as GSA—gravitational search algorithms (GSA), PSO—particle swarm optimization, GWO—grey wolf optimization, and various hybrid plus evolutionary algorithms. Hybrid algorithms also made for such wide-range application, but the drawback of such algorithms are convergence time is very high and challenging to implement for multiple wide range applications. Cuckoo Search (CS) is an optimization technique, developed in 2009, is a highly efficient algorithm. It is an algorithm that is based on population and is also a nature-inspired metaheuristic algorithm, which is easy to implement for such applications. The success of the algorithm has been fueled because of its characteristics, i.e. its simplicity, few parameter, ease of implementation. Cuckoos are delightful birds, which have attracted people not only because of their melodious sound but also because of their aggressive reproduction capability. The algorithm addresses two important behavioral aspects of some cuckoos i.e. brood parasitism and levy flights. The two Ani and Guira cuckoo species will all lay eggs in a communal nest. The cuckoo can then remove the eggs laid by others to improve the probability of hatching the laid eggs. Cuckoo immigration along with environmental factors make the cuckoos to find an appropriate and also a place for reproduction and breeding. Cuckoos presents the random walk Levy flight behavior, which enables the algorithm to completely explore the search space. In CS algorithm fixed number of better fitness cuckoos survive in the environment. This chapter introduces with the mathematical concept of CS algorithm and summarizes different research articles where the algorithm has been explored in the field of engineering. Furthermore, the resent version of CS algorithm are addressed which mainly focuses on modified and hybrid versions. The novelty of this chapter is that it presents current trending research aspects of CS algorithm in the field of engineering, machine and deep learning. The chapter concludes with the future direction which can be investigated using CS algorithm in the field of science and technology.

Managing and defining multiple tasks over different physical and digital workspaces are done by using various strategies.In this paper we put light on how computer based task management tools can support task management on a desktop or a smart phone and how it reacts in a fatal situation to the processes out of limit. The key concept in any of the operating system which allows the particular system to support multitasking system, etc. is Task Scheduling. It’s the core which refers to the basic way; different processes are allowed to share the common CPU. Scheduler and dispatcher are the software which helps to carry out this project.

The thought of shaping your ideas into reality has achieved its literal meaning. A future where we can hold a tangible product in our hand which was the part of our imagination minutes ago is around the corner. The 3D Model printing isalready an exciting and successful venture. Manufacturing a product which you saw on the shelf of a local store, a complicated industrial part, a small and precise component of an aircraft, or just a prototype that gives shapes to your idea. In printing system domains, they majorly use two technologies either using CAD software to make the digital files or to use a three-dimensional scanner to scan a 3D object to create a digital copy and to validate and implement the printed model. We are mainly having three techniques for 3D model creation like Selective Laser Sintering (SLS), Fused Deposition Modeling (FDM) and Stereo lithography (SLA). We present an illustrative study of the 3D printing techniques, working of 3D printer, their benefits and drawbacks, its impact on the economy.