From 4f18480050d26029d3d127a007c1b0b1297fd866 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Peter=20Babi=C4=8D?= Date: Tue, 8 Mar 2016 13:08:18 +0100 Subject: [PATCH] Add three more citations to the ProblemExpress The problem express part was poorly cited, so three new citations were added there to strehngten the statements. --- problemexpres.tex | 6 +++--- tukethesis.bib | 34 ++++++++++++++++++++++++++++++++++ tukethesis.pdf | 4 ++-- 3 files changed, 39 insertions(+), 5 deletions(-) diff --git a/problemexpres.tex b/problemexpres.tex index d3e8fe3..2a25b21 100644 --- a/problemexpres.tex +++ b/problemexpres.tex @@ -1,7 +1,7 @@ \section{Electric power fundamentals} In general physics terms, power is defined as the rate at which energy is transferred (or transformed). Electric energy in particular, begins as electric potential energy – what we commonly refer to as voltage. When electrons flow through that potential energy, it turns into electric energy. In most useful circuits, that electric energy transforms into some other form of energy. Electric power is measured by combining both how much electric energy is transferred, and how fast that transfer happens. -The electric power P is equal to the energy consumption E divided by the consumption time t +The electric power P is equal to the energy consumption E divided by the consumption time t \cite{meade2002foundations} $$P = \frac Et$$ where P is the electric power in watt [W], E is the energy consumption in joule [J] and t is the time in seconds [s]. @@ -13,13 +13,13 @@ Ohm's Law deals with the relationship between voltage and current in an ideal co $$I = \frac U R $$ where I is the current expressed in Amperes [A], V is the voltage, bearing the Volt units [V] and R is the electrical resistance in ohms [$\Omega$]. -The Ohms's law can be further expanded, to get these three quantities in relationship with \textbf{power}, such as +The Ohms's law can be further expanded \cite{beaty1998electric}, to get these three quantities in relationship with \textbf{power}, such as $$P = I \cdot V = I^2 \cdot R = \frac{U^2}R$$ \subsection{Direct current (DC) circuits} Generally, Ohm's law is used on \gls{dc} circuits. A DC voltage or current has a fixed magnitude (amplitude) and a definite direction associated with it. Both DC currents and voltages are produced by power supplies, batteries, dynamos and solar cells to name a few. -We also know that DC power supplies do not change their value with regards to time, they are a constant value flowing in a continuous steady state direction. In other words, DC maintains the same value for all times and a constant uni-directional DC supply never changes or becomes negative unless its connections are physically reversed. +We also know that DC power supplies do not change their value with regards to time\cite{herman2012direct}, they are a constant value flowing in a continuous steady state direction. In other words, DC maintains the same value for all times and a constant uni-directional DC supply never changes or becomes negative unless its connections are physically reversed. \subsection{Waveforms and alternating current (AC) circuits} An alternating function or \gls{ac} waveform on the other hand is defined as one that varies in both magnitude and direction in more or less an even manner with respect to time making it a “bi-directional” waveform \cite{whitaker2006ac}. An AC function can represent either a power source or a signal source with the shape of an AC waveform generally following that of a mathematical sinusoid as defined by diff --git a/tukethesis.bib b/tukethesis.bib index 20f5762..6a58355 100644 --- a/tukethesis.bib +++ b/tukethesis.bib @@ -158,3 +158,37 @@ pages={80--81} } +@book{meade2002foundations, + title={Foundations of Electronics}, + author={Meade, R.L.}, + isbn={9780766840270}, + lccn={2002018069}, + series={Foundations of Electronics, Circuits and Devices}, + url={https://books.google.sk/books?id=16Aec25Fo\_0C}, + year={2002}, + publisher={Thomson/Delmar Learning}, + pages={85} +} + +@book{beaty1998electric, + title={Electric Power Distribution Systems: A Nontechnical Guide}, + author={Beaty, H.W.}, + isbn={9780878147311}, + lccn={98018533}, + series={PennWell nontechnical series}, + url={https://books.google.sk/books?id=NfGECDO8wp0C}, + year={1998}, + publisher={PennWell}, + pages={12} +} + +@book{herman2012direct, + title={Direct Current Fundamentals}, + author={Herman, S.L.}, + isbn={9781111127466}, + lccn={2010936991}, + url={https://books.google.sk/books?id=xUyulrQuCyYC}, + year={2012}, + publisher={Cengage Learning} +} + diff --git a/tukethesis.pdf b/tukethesis.pdf index f589f45..9ef1e3c 100644 --- a/tukethesis.pdf +++ b/tukethesis.pdf @@ -1,3 +1,3 @@ version https://git-lfs.github.com/spec/v1 -oid sha256:6b07c40f29c99e4c498268a73c4e4f25774c618338d0f3f9962821ea90569848 -size 2249159 +oid sha256:662e2fe9e1f44bbd88866949288fe8c2429df262eb4fe5295793745ac930b340 +size 2250368