Essays on Relays

Introduction

Radio Frequency Identification (RFID) is a system that track and record organization's assets and inventory automatically. Although, designing a system that is able to track and record merchandise excluding unwanted ones in a hurriedly moving environment pose quite a challenge RF pads and curtain help easily that. In order to design a system that is both effective and efficient in collecting RFID signal data, MWT materials designed and introduced RF pads and curtains to minimize incorrect data collection as well as avoid installing a RFID tracking device. These curtains and pads increase the reader ability of Electronic Product Code ...

Derosa's second version has a relatively different version of the first thesis statement but similarly with a question, "are women treated as objects by the very university that has a responsibility to treat them with equality and dignity and not as second class citizens?" In the final version of DeRosa's article, the author provides more details and effects that objectification of women has on the society through the university. According to the author, assuming that women are less powerful than the males is a disregard to the females because it depicts them as inferior human beings. The author speaks ...

Abstract

This paper analyzes the importance of generator synchronization to the power grid, the required conditions to perform this procedure and the consequences of imprecise synchronization. For a generator to be synchronized to a grid, the voltage magnitude, frequency, phase sequence and phase angle must match. Manual synchronization depends on an operator to modify generator voltage and frequency, confirm phase sequences of generator and grid, and monitor phase angle difference to timely initiate breaker closure. Automatic synchronizers perform all these function through a computerized system that consists of complex algorithms and control systems, and are categorized in phase lock type ...

Introduction

Numerous electrical applications require an inverter, which converts Direct Current (DC) to Alternating Current (AC) power. Some of these applications require the stepping down of voltage levels when realizing this conversion, which signifies that the input DC power is greater than the AC power. Conversely, certain applications require the opposite: to step up voltage when performing the power conversion, which means that the input DC power is lower than the AC power. These requirements can be met through the use of Voltage Source Inverters and Current Source Inverters, respectively. However, some particular applications require to step down voltage for ...

“The Things They Carried” seems like a simple story concerning the items carried by soldiers while in Vietnam. But in the real sense, Tim O’Brien uses the stories to focus on the terrible conditions of Vietnam as well as the death of one soldier. He believed that the things men carried inside, and those they did or the ones they felt they had to do was so sad (O’Brien 57). It can be described as a powerful meditation by the Vietnam soldiers that is somehow fictional and fact. Besides, the author created a protagonist as a fictional ...