Engineering Essays and Writings

Dangerous Goods Can Create Accidents Engineering Essay

Example essay. Published: 1st Jan 2015

Dangerous goods are essentially for wide range of global industry, commercial, medical and research requirement and processes. This is because of the advantages of air transport, a great deal of this ...

Data Captuare and Analysis System for Aircraft Wire Testing

Example essay. Published: 18th May 2020

Abstract A good aircraft is an engineering marvel. Flaws in electrical cabling could result in catastrophic consequences particularly in inflight systems. Deprivation and failing of airc ...

Data Prediction Strategy for ROSSMANN

Example essay. Published: 30th Aug 2017

Our task in this project is to predict 6 weeks daily sales for 1115 Rossmann stores located across Germany. Why is this important? This will help the stores maximize their profit by focusing on spec ...

Data transmission in computer networks

Example essay. Published: 1st Jan 2015

Why can waves with a very low frequency follow the earth’s surface? Why are they not used for data transmission in computer networks? Answers: Radio waves which are below 2 MHz follow the ground ...

DC Motor Direction Control Using Arduino Uno with L298 Driver

Example essay. Published: 18th May 2020

Abstract: Dc motor direction control by using Arduino and L298N motor driver is the main title of the project By using this Arduino we can see how to control DC motors and We can control the dire ...

DC Motor Speed Control

Example essay. Published: 30th Aug 2017

Abstract The point of this paper is to comprehend the attributes of open loop and close loop speed control for a DC engine. It additionally intends to demonstrate the properties of a PID Contro ...

Dc Power Source Utilization Engineering Essay

Example essay. Published: 1st Jan 2015

Many industrial applications have begun to require higher power apparatus in recent years. Some medium voltage motor drives and utility applications require medium voltage and megawatt power level. Fo ...

De-icing operations at Minnesota Saint Paul

Example essay. Published: 1st Jan 2015

EXECUTIVE SUMMARY This report explains the results of research into how de-icing operations at Minnesota Saint Paul could be improved. The findings were that this airport should use a combination of ...

Defining Linear Particle Accelerators Engineering Essay

Example essay. Published: 1st Jan 2015

Abstract of work done As linear particle accelerator was invented in 1928 by Rolf Wideroe which is (often shortened to linac) is a type of particle accelerator that greatly increases the velocity of c ...

Definition of rank and its characterstics by column vectors with a 3×4 matrix

Example essay. Published: 1st Jan 2015

RANK of matrix The column rank of a matrix A is The maximal number of linearly independent columns of A. Likew is e, The row rank is The maximal number of linearly independent rows of A. Since The c ...

Deflection of Coil Tipped Catheter

Example essay. Published: 30th Aug 2017

It happens that most of it are remotely steerable catheters. In this paper, it becomes fit to the lines can be used for turning of the wall unto the pool of the inclination of the times, the rotatio ...

Delineation Of Pipeline Coating Defects Company Engineering Essay

Example essay. Published: 1st Jan 2015

The business sector of corrosion monitoring and control solutions we provide expertise in consultation, evaluation, design and installation of cathodic protection systems. With established field asses ...

Demonstrating Quantum-Assisted Binary Classification Using a Quantum Annealer

Example essay. Published: 18th May 2020

1. Summary This document is intended to propose the final area of research regarding the project that is going to be explored, providing an outline of the direction and method that ...

Description of a Maintenance Organisation

Example essay. Published: 31st Aug 2017

Description of a Maintenance Organisation with Suggested Developments to Improve Cost Effectiveness Table 1: Key Terms and Abbreviations Term / Abbreviation Definition CM Correcti ...

Description Of Bird Strike Engineering Essay

Example essay. Published: 1st Jan 2015

“A bird strike (sometimes bird strike, bird hit, or BASH – Bird Aircraft Strike Hazard) is a collision between an airborne animal (usually a bird) and a man-made vehicle, especially aircraft. It is a ...

Design a simple apnea detection system

Example essay. Published: 1st Jan 2015

CHAPTER 1 1.1 INTRODUCTION AIM The aim of the project is to design a simple apnea detecting system with an alarm and to classify the type of apnea identified using LabVIEW. 1.1.1 Normal Respiratory E ...

Design And Analysis Of Wind Turbine Blade Engineering Essay

Example essay. Published: 1st Jan 2015

This project is devoted to investigate the parameters that governs the efficiency of a wind turbine and to design blades capability of maximizing the energy generated from the turbine. Using the help ...

Design and Construction of Crane

Example essay. Published: 18th May 2020

Introduction The project assigned by the teacher to the students is to design and construct a Tower crane using the materials provided: Hoop pine and paddle pop sticks. The crane needs t ...

Design and Construction of Liquefaction Tank

Example essay. Published: 13th Dec 2017

Chapter 3. Methodology As mentioned in previous chapters, the objective of the project is to design and construct a “liquefaction tank” to be used during geotechnical engineering lectures ...

Design and Development of a Time-triggered Co-operative Scheduler

Example essay. Published: 13th Oct 2021

In this experiment, the aim is to design and develop a time-triggered co-operative scheduler to run multiple tasks at a fixed timeframe. Each task is allowed a pre-defined time limit and each task corresponds to illuminating an LED on the Hardware board and there is a total of eight LEDs, which means eight tasks. ...

Design And Fabrication Of A Hydraulic Ram Pump Engineering Essay

Example essay. Published: 1st Jan 2015

Abstract The Design and Fabrication of a Hydraulic Ram Pump (Hydram) is undertaken. It is meant to lift water from a depth of 5 feet below the surface with no other external energy source required. ...

Design And Fabrication Of A Hydraulic Scissor Lift Engineering Essay

Example essay. Published: 1st Jan 2015

Elevated work platforms are mechanical devices that are used to give access to areas that would previously be out of reach, mostly on buildings or building sites. They are also known as aerial work pl ...

Design And Implementation Of Chebyshev Filters Engineering Essay

Example essay. Published: 1st Jan 2015

A filter in Digital signal Processing terminology is a nothing but a component which eliminates undesired elements of the signals. For instance noise is an undesired element. Filter extracts the desi ...

Design and Implementation of Galvanic Skin Resistance

Example essay. Published: 19th Oct 2016

CAREER EPISODE 1 Introduction CE1.1 Chronology : 2007-2011 Name of the organization : Netaji Subhash Engineering College. Geographical location ...

Design and Installation of 66/11kV District Substation

Example essay. Published: 8th Feb 2020

Contents Introduction Objectives Purpose Technical specification Stakeholders Project scope management plan Work Breakdown Structure ...

Design And Modeling Of Axial Micro Gas Turbine Engineering Essay

Example essay. Published: 1st Jan 2015

ABSTRACT Micro turbines are becoming widely used for combined power generation and heat applications. Their size varies from small scale units like models crafts to heavy supply like power supply to h ...

Design And Operation Of Engine Testing Facilty Engineering Essay

Example essay. Published: 1st Jan 2015

ABSTRACT The report covers design and development of an engine testing facility for the operation of diesel and gasoline engines. It consists of two sub-cells for each engine type. It is designed by k ...

Design and Simulation of Automatic Load Tap Changer

Example essay. Published: 31st Aug 2017

Introduction CE 3.1 This is the third project I did as a graduate Electrical Engineering while pursuing my Bachelor of Engineering in the field of Electrical Engineering from Balochistan Univers ...

Design Considerations For Optimizing Flat Plate Collector Effectiveness Engineering Essay

Example essay. Published: 1st Jan 2015

Abstract- Application of solar energy for domestic and industrial heating purposes has been become very popular. However the effectiveness of presently used fixed flat plate collectors is low ...

Design For Manufacturing And Assembly

Example essay. Published: 8th May 2017

A design process that focuses on meeting customer requirements meanwhile balancing the important aspects such as cost, quality and performance is Dfma. DFMA is an abbreviation for “Design fo ...

Design of a Low Voltage CMOS Transconductance Amplifier

Example essay. Published: 31st Aug 2017

This project aims to illustrate the design and simulation of a Low Voltage Complementary Metal Oxide Semi Conductor (CMOS) Transconductance Amplifier (OTA) with an improved power consumption, Direct ...

Design Of A New Liquid Liquid Hydrocyclone Geometry Engineering Essay

Example essay. Published: 1st Jan 2015

Abstract A Liquid to Liquid hydrocyclone is a static machine that use centrifugal force and apply it on the liquid mixture which will make the separation of heavy and between the mixture components (l ...

Design Of A Pipe Climbing Robot Engineering Essay

Example essay. Published: 1st Jan 2015

This technical paper explains the design process and simulation of a concept vehicle to drive inside a circular pipe of the desired configuration as shown in figure 1. The design is developed to faci ...

Design Of A Sulfuric Acid Production Plant Engineering Essay

Example essay. Published: 1st Jan 2015

This project is prepared according to the requirements of chemical engineering department, and it’s also a preliminary study of sulfuric acid production plant. The project begins with chapter on ...

Design Of Baffle In Upflow Anaeorobic Engineering Essay

Example essay. Published: 1st Jan 2015

The Upflow Anaerobic Sludge Blanket process was developed by Lettinga in the Netherland during the early 1980s, as a relatively simple wastewater treatment system, in which no moving parts are present ...

Design Of Belt Conveyor System Engineering Essay

Example essay. Published: 1st Jan 2015

Belt conveyor is the transportation of material from one location to another. Belt conveyor has high load carrying capacity, large length of conveying path, simple design, easy maintenance and high re ...

Design Of Calipers For Post Polio Paralytic Patients Engineering Essay

Example essay. Published: 1st Jan 2015

ABSTRACT Over 13 million in India people suffer from various locomotor disabilities, of which 4 million have been afflicted by polio. Polio destroys the nervous system and causes paralysis of the li ...

Design of Condition Monitoring (CM) system of a Case Study

Example essay. Published: 30th Aug 2017

Term / Abbreviation Definition CBW Continuous Batch Washer CM Condition Monitoring DIN Deutsches Institut fur Normung (German Institute for Standardization) FFT Fa ...

Design of Face Recognition Image Processor

Example essay. Published: 13th Dec 2017

Abstract This project deals with the design and implementation of an image processing system for Face recognition using MATLAB. Image treatment is a complex task so, we must study all the background i ...

Design of Handshake Mode

Example essay. Published: 13th Dec 2017

Design Of Handshake Mode 8255A Using 8086 Introduction: 8255 is a widely used general purpose programmable devices, can be compatible with any microprocessor. The 8255 includes three programmable port ...

Design of Interventional Biomedical Devices

Example essay. Published: 30th Aug 2017

1. Neurovascular Catheters and Engineering Design 1. Case Study 1. The following catheter found in the ”cathlabdigest” written by Gill Laroya discusses the advancement of the design of i ...

Design of Manchester Serial Data Communications Channel

Example essay. Published: 31st Aug 2017

The Design of Manchester Serial Data Communications Channel Based on Vivado (Systemverilog) Abstract As the explosive growth of wireless communication system and also with the proliferation of lapto ...

Design of Oil Storage Tanks

Example essay. Published: 24th Apr 2017

Oil Storage Tanks 1-Introduction Storage tanks containing organic liquids, non organic liquids, vapours and gases are used in many industries. Most such tanks are designed and built in accordance with ...

Design of Remote Controlled Aircraft

Example essay. Published: 23rd Sep 2019

Table of Contents Executive summary Management summary Plan chart Conceptual design summary Mission requirement De ...

Design of Search and Rescue Helicopter

Example essay. Published: 30th Aug 2017

Proposal:Search & Rescue Helicopter This report highlights the design process of a S&R Helicopter system that can rival the competitors in the current market. In order to do so Sys ...

Design of Shaft | Basis of rigidity

Example essay. Published: 18th May 2017

DESIGN OF SHAFT ON THE BASIS OF RIGIDITY AND STRENGTH CALCULATION AND ANGLE OF TWIST Design of Shaft: • A shaft is a rotating member usually of circular crossection (solid or hollow), which is us ...

Design of Spatial Decoupling Scheme

Example essay. Published: 30th Aug 2017

Design of Spatial Decoupling Scheme using Singular Value Decomposition for Multi-User Systems Abstract– In this paper, we present the use of a polynomial singular value decomposition (PSVD) al ...

Design Of Steel And Structure Engineering Essay

Example essay. Published: 1st Jan 2015

A plate girder bridge is a bridge supported by two or more plate girders. The plate girders are typically I-beams made up from separate structural steel plates (rather than rolled as a single cross-se ...

Design Of The Centrifugal Pump Engineering Essay

Example essay. Published: 1st Jan 2015

1.0 Introduction Turbomachine is a device that exchanges energy with a fluid using continuously flowing fluid and rotating blades. Two classifications of turbomachines are that if the device delivers ...

Design Of The Rear Spoiler For Road Vehicles Engineering Essay

Example essay. Published: 1st Jan 2015

ABSTRACT When objects move through air, forces are generated by the relative motion between the air and surfaces of the object. Aerodynamics is the study of these forces, generated by the motion of ai ...

Design of Traffic Light System

Example essay. Published: 30th Aug 2017

Contents Task 1 Design Specification Design 1 Complete Block Diagram of the traffic light system State diagram Table Circuit simulation using Multisim software, Task 2 Timing Counter Task 3 Figure 1 ...

Design of Vehicle Security and Passenger Protection System

Example essay. Published: 31st Aug 2017

‘Understand vehicle security, environmental control and passenger protection systems’ Introduction I will learn that there are many advantages in the modern central door locking system ...

Design of Wind Turbine Control

Example essay. Published: 31st Aug 2017

ABSTRACT The main objective of this report is the design and analysis of the control of the wind turbine. In order to ensure an efficient energy capture from the wind and at the same time the miti ...

Design Proposal for Smartphone Technology

Example essay. Published: 30th Aug 2017

HUMAN MOBILE “Your personal invisible communication platform” The goal of this project is to propose an innovative and futuristic design of new era mobile smartphone. It is b ...

Design Specifications for Engineering Project

Example essay. Published: 31st Aug 2017

Introduction For large development projects, defining the problem becomes the development of design specifications. Typically, development project are complex, involving a number of people from diff ...

Designing a 1MW Solar Power Plant

Example essay. Published: 31st Aug 2017

Introduction CE 1.1 “Turn the air con on, it’s 45 degrees Celsius already”, said my mum. The weariness of stifling heat with the tops of dry 45 degrees Celsius radiated in her tone ...

Designing A Creep Testing Machine Engineering Essay

Example essay. Published: 1st Jan 2015

A Creep Testing Machine is one that accurately measures the creep of a material under constant load and at elevated temperatures until final rupture. Basically, it demonstrates the effect of Temperatu ...

Designing an automated lawn mower

Example essay. Published: 25th May 2017

Chapter 1: Introduction to the study Background to the research The first lawn mower was contrivance in 1827 and patented in 1830 by Edwin Beard Budding, an engineer from Stroud, Gloucestershire, Engl ...

Designing and Planning High Voltage Laboratories

Example essay. Published: 30th Aug 2017

1. Introduction The demand of energy which has to be delivered over long distances is increasing in today’s world due to industrial and economic development. Transportation of such a large amo ...

Detecting Spam Zombies by Monitoring Outgoing Messages

Example essay. Published: 30th Aug 2017

Abstract: Compromised machines are one of the key security threats on the Internet. They are often used to launch various security attacks such as spamming and spreading malware [15]. Given that spa ...

Developing a Compensator using Cerrobend Materials

Example essay. Published: 27th Nov 2017

ABSTRACT In external beam radiotherapy (EBRT), dose optimization is achieved by conforming the dose distribution to the shape of the intended target whilst minimizing radiation to normal tissues in c ...

Development Of A Hybrid Electric Vehicle Engineering Essay

Example essay. Published: 1st Jan 2015

The term HYBRID VEHICLE refers to a vehicle which uses two or more distinct power sources of energy to move the vehicle. The term commonly refers to HYBRID ELECTRIC VEHICLES (HEVs), which is a combina ...

Development of a Sensor Spear

Example essay. Published: 18th May 2020

Title Development of sensor spear to go into silos of grains or nuts. Aim To develop a sensor spear to go into grain silos, which contin ...

Development of a Solar Wind Downdraft Energy Tower

Example essay. Published: 8th Feb 2020

SUMMARY I have done research on the renewable energy extraction plant- Solar Wind downdraft energy tower. This plant is most efficient in warm place, but it has low effic ...

Development of a superconducting coil gun system

Example essay. Published: 1st Jan 2015

Decades of research on superconductivity and cryogenics yielded results that have been essential for a number of fascinating developments, primarily in medical and industrial applications. Most of the ...

Development of a UAV for Team Purpose

Example essay. Published: 31st Aug 2017

Career Episode 3 CE 3.1 Introduction During my final year of my Bachelor’s Degree in Electronics and Communication Engineering I made a project known as ‘Loon Copter’. This was a g ...

Development of Air Compressor Lubrication

Example essay. Published: 13th Dec 2017

In this project, the mission which needs to be accomplished is to investigate the relentless root cause of such failure and to give useful recommendations which can help to avoid such failures in the ...

Development of an Automatic Plastic Spur Gear Moulding System

Example essay. Published: 18th May 2020

INTRODUCTION The process of recycling plastics is the recuperating of waste or scrap plastic product and recovering the material to another useful product that may be similar or far diff ...

Development of Automated Irrigation System

Example essay. Published: 18th May 2020

AUTOMATED IRRIGATION SYSTEM 1. Abstract: I am working on the development automated irrigation system. It was developed in many areas in agriculture department and the countrysid ...

Development of Automatic Ice Cone Filling Machine

Example essay. Published: 18th May 2020

Introduction– My project is automatic ice cone filling machine this machine the scope of this study like designing or focuses the various terms and developing of ice cone fil ...

Development of Automatic Wheelchair

Example essay. Published: 18th May 2020

Summary The automatic wheel chair for disable person is automatically controllable wheelchair will be designed to have help themselves with assistance o ...

Development of Automatic Wheelchair for all Physical Disabilities

Example essay. Published: 18th May 2020

ABSTRACT The Development of an Automatic Wheelchair for all Physical Disability Types is a mechanical device designed and developed compatible with most physical disabilities that is sel ...

Development of automobile engineering through Ford Motors

Example essay. Published: 23rd Sep 2019

Total cost minimization Introduction Unlike other professions, Engineering is one of the most expansive fields that has continuously advanced over the years with a goal of impr ...

Development of Cats Eyes in Improving Road Safety

Example essay. Published: 3rd Nov 2020

Difficult roads often lead to beautiful destinations, is a key theme that will be explored in this paper. The road safety invention was made due to problems first being spotted when driving across country roads with no source of light to guide drivers who are already nervous from these narrow unpredictable roads. ...

Development of Energy Efficient Lighting Technology

Example essay. Published: 23rd Sep 2019

Development of Energy Efficient Lighting Technology LED VS TUNGSTEN Abstract Since many government regulations are clamping down on wastage of ene ...

Development of Light as a Form of Energy

Example essay. Published: 18th May 2020

Light is a transverse, electromagnetic wave with a visible spectrum that can be seen by the average human and most animals. Light plays a vital role in our daily lives and has revolutionize ...

Development Of Micro Hydro Power Generation Engineering Essay

Example essay. Published: 1st Jan 2015

ABSTRACT Hydropower is a well established technology which is renewable, sustainable and has been producing power reliably for about a century. Hydro power stations are very sensitive to load variatio ...

Development of Obstacle Detecting Robot Car

Example essay. Published: 18th May 2020

ABSTRACT This project describes about an obstacle avoiding robot car which is controlled by ultrasonic sensor. Detecting and avoiding obstacles are the central issues while constructing ...

Development of Organic Redox Flow Batteries for Renewable Energy

Example essay. Published: 18th May 2020

Development of Organic Redox Flow Batteries for applications in storage of Renewable Energy Executive Summary Fossil fuels are still the primary source of energy in current tim ...

Development of The Boeing 747

Example essay. Published: 12th Mar 2019

Boeing 747 Jumbo Jet: The aircraft that changed the world Introduction In the early days of commercial airline transport, air travel saw a large increase in travellers and airport congestion ri ...

Development Of The Electricity Generation Engineering Essay

Example essay. Published: 1st Jan 2015

CHAPTER 1 INTRODUCTION 1.1 Introduction: Development of the electricity generation grew rapidly from age to age. Electricity generation is a process that generate electric energy from other form of en ...

Development of Vertical Wall Climbing Glass Cleaning Robot

Example essay. Published: 18th May 2020

Abstract The development of a robot which can move on the vertical wall that is intended for cleaning the glass wall surface. It is based on passive suction cups mechanism. The robot cou ...

Development of Wireless Weather System

Example essay. Published: 18th May 2020

Abstract The weather monitoring system has a vital role in the environment and has various applications. Data gathering can be difficult if obtained manually. The Arduino based ...

Die Preforming Process: Long Last-stage Blade Nuclear Power

Example essay. Published: 31st Aug 2017

Design and Optimization of Die Preforming Process for Long Last-stage Blade of Nuclear Power He Xiaomao1,aï¼ŒJiang Peng1, Lin Jingtang2ï¼ŒHuang Jianning1 1 Beijing Mechanical and Electrical In ...

Difference between des and aes

Example essay. Published: 1st Jan 2015

Difference between des and aes AES has a better encryption standard i.e. it is far more advanced when compared to Des.There are many reasons attributing to this, Firstly the encryption key of an D ...

Difference Between Quasi Turbine And I C Engine Engineering Essay

Example essay. Published: 1st Jan 2015

In quasi turbine we gets lower temperature on combustion stroke, in this engine the expansion stroke time is little bit earlier than the other engines though this reason we get the all the energy at t ...

Different Power Factor Correction Engineering Essay

Example essay. Published: 1st Jan 2015

Different power-factor correction methods are reviewed, as well as the back ground to the power-factor. Problem is arising in modern electrical distribution systems due to the connection of rapidly in ...

Different Subassemblies Of Ac And Dc Generator Engineering Essay

Example essay. Published: 1st Jan 2015

P1: Draw diagram and write down the different subassemblies of AC and DC generator? A.C. generator has coil of wire moving around into a magnetic field. With this assembly, a voltage is induced and ...

Different techniques of spread spectrum

Example essay. Published: 8th May 2017

CHAPTER 1 INTRODUCTION: The idea of this project is to study different techniques of spread spectrum. These techniques include the two processes of direct-sequence spread spectrum and frequency hoppin ...

Different Types of Maintenance Methodologies

Example essay. Published: 18th May 2020

INTRODUCTION Maintenance can be defined as the process of maintaining, retaining or restoring it to a state in which it can perform a required function which ...

Differentiate Between Stress And Strain Engineering Essay

Example essay. Published: 1st Jan 2015

When stretching a material, the length changes and the strain become positive. More strain means that more stress to the object once compress. When the material is compressed, the length changes and ...

Digital Clock Using AT89C51

Example essay. Published: 18th May 2020

Keywords: Digital Clock; LCD Display; 8051Microcontroller Abstract A digital clock was designed in the this project where the microcontroller is used for the timing controller a ...

Digital communication simulation using matlab

Example essay. Published: 1st Jan 2015

Introduction On General Modulation/Demodulation And 64-QAM – AWGN Channel, Noise And Rectangular Pulse Shaping Modulation – Demodulation – Modem In the area of telecommunications, mo ...

Digital modulation and demodulation

Example essay. Published: 4th May 2017

Chapter 1 Digital Communications 1.0 Digital Communication 1.1 Introduction Communication Process: When we think of communication, we usually think of people talking or listening to each other. This m ...

Digital Signal formatting

Example essay. Published: 1st Jan 2015

Introduction: Digital Signal formatting is the process of transforming information from one format into another.. This is often used in many digital devices and for communication processes. A digital ...

Discuss The Contention That Conflict And Dispute Are Inevitable

Example essay. Published: 13th Apr 2017

INTRODUCTION Conflicts as well as Dispute are for sure inevitable in most of the commercial projects whether big or small. To be precise, Conflict and Dispute is always there, not only in commercial p ...

Discuss the different types of Pervasive electronics

Example essay. Published: 20th Dec 2017

Date authored: 23 rd August, 2014. The invention of the transistor in mid twentieth century gave birth to modern day electronics. Rapid advancements in semiconductor and fabrication technologies allow ...

Distance Meter Using Ultrasonic Sensor

Example essay. Published: 18th May 2020

ABSTRACT: This project is about to measure a distance using ultrasonic sensor and Arduino Leonardo. First of all in this electrical world almost everything we are using is automatic so m ...

Distortion effect for electric guitar

Example essay. Published: 1st Jan 2015

Distortion Effect For Electric Guitar Using FPGA Introduction Project Goals And Objectives The goal of the project is to implement distortion effects for electric guitar on an FPGA board. The algorith ...

Distributed Control System for Microgrid

Example essay. Published: 5th Aug 2021

This paper deals with how to implement a distributed control and monitoring system based on the Ethernet network in the microgrid. The paper describes a control strategy to implement both grid connected and islanded operation modes of the microgrid. ...