Hi,
I moved my blog to lonewritings.github.io.
I did not find the support for programming scripts impressive in WordPress.
Hi,
I moved my blog to lonewritings.github.io.
I did not find the support for programming scripts impressive in WordPress.
Energy efficiency or efficient energy usage is a goal, aiming to reduce energy consumption by adopting new technology/means. For example, using LED bulbs instead of CFLs for lighting purpose reduces both energy consumption and the cost. Energy efficiency is an important means to handle growing energy demands or for sustainable energy.
Energy Intensity is a quantitative metric for nation’s energy efficiency. For a country, it is calculated as the ratio of the total energy units consumed and the total units of GDP over a calendar year. The lower its value, the better is the energy efficiency. A higher value of energy intensity means more money is being spent on energy to convert it into nation’s GDP, which is bad.
In this post, I will write about the TED talk by Mr. Richard Greene, author of the book, “The Words that Shook the World: 100 Years of Unforgettable Speeches and Events”. In the talk, “The 7 secrets of the greatest speakers in history“, Richard first explains seven ingredients of a great talk, and then he shows video snippets of few great speakers including Loe Gehring, Winston Churchill, John F. Kennedy, Martin Luther King, among others. Here, I will re-phrase only the seven ingredients of his talk in five bullet points
A few days back I attended a doctoral symposium along with my fellow PhDs at NIIT Universiy, Neemrana, Rajasthan. It was a two-day event in which 17 Ph.D. students from elite educational institutions of India and few experts from Industry and Academia (IIT Profs.) gave presentations. Each presentation was around 15 – 20 minutes followed by 1-2 questions. After the symposium, I along with my colleagues discussed the presentations, i.e., which presentations were catchy and what were the reasons for boring presentations. I won’t repeat the discussion here, but I would like to say that the debate intrigued me to dig deep and understand the characteristics of better presentations.
In this post and another subsequent post, I will nail down the ingredients of a better presentation. In all these posts I will present views of world-class presenters. This post is based on a TED (Technology, Entertainment, and Design) talk by Chris Anderson, “TED’s secret to great public speaking“. Chris is the owner of the TED, a non-profit organization, organizing talks on ideas worth sharing. Chris mentions that there is no unique formula for giving a better presentation. It is not like that you tell catchy stories on red-velvet, rather presentation is means of transferring an idea from a presenter to an audience. He defines this idea transformation process as a synchronization problem, i.e., if the speaker’s and listeners’ minds get synched with one another then idea gets transferred quickly without losing the audience. To make sure that the synchronization will happen between the two parties while presenting, Chris mentions that a speaker should prepare his(r) talk while ensuring following ingredients in a talk:
\setlength{\abovedisplayskip}{2pt} \setlength{\belowdisplayskip}{2pt}
2. Reduce space above and below section/subsection titles. Place these lines before beginning the document.
\usepackage[compact]{titlesec}
\titlespacing*{\section} {0pt}{2\baselineskip}{3\baselineskip}
\titlespacing*{\subsection} {0pt}{2\baselineskip}{3\baselineskip}
This answer is copied from this StackOverflow link. In Springer, llncs format I found this sucks but a hack around the same is provided in this StackOverflow answer. It really works!!.
1. Place two figures side by side with separate captions and labels [copied from https://tex.stackexchange.com/a/37582/88745%5D
\usepackage{subfigure}
\begin{figure}
\centering
\parbox{5cm}{
\includegraphics[width=5cm]{img1}
\caption{First.}
\label{fig:2figsA}}
\qquad
\begin{minipage}{5cm}
\includegraphics[width=5cm]{img2}
\caption{Second.}
\label{fig:2figsB}
\end{minipage}
\end{figure}
2. Place Table and a Figure side by side. [source:https://tex.stackexchange.com/a/265891/88745%5D
\documentclass{article}
\usepackage{graphicx}
\usepackage{capt-of}% or \usepackage{caption}
\usepackage{booktabs}
\usepackage{varwidth}
\begin{document}
\begin{table}[ht]
\begin{varwidth}[b]{0.6\linewidth}
\centering
\begin{tabular}{ l r r r }
\toprule
Student & Hours/week & Grade \\
\midrule
Ada Lovelace & 2 & A \\
Linus Thorvalds & 8 & A \\
Bruce Willis & 12 & F \\
Richard Stallman & 10 & B \\
Grace Hopper & 12 & A \\
Alan Turing & 8 & C \\
Bill Gates & 6 & D \\
Steve Jobs & 4 & E \\
\bottomrule
\end{tabular}
\caption{Student Database}
\label{table:student}
\end{varwidth}%
\hfill
\begin{minipage}[b]{0.4\linewidth}
\centering
\includegraphics[width=40mm]{example-image}
\captionof{figure}{2-D scatterplot of the Student Database}
\label{fig:image}
\end{minipage}
\end{table}
\end{document}
At times we need to copy the Latex equations and tables in our presentation slides prepared either in Microsoft Powerpoint or Apple Keynote. There are many options to do the same but here I will explain a simple approach
There are different options for customizing the output such as font size, installing new packages.
In Oxford dictionary sustainable means “able to be maintained at a certain rate or level.” According to the United Nations sustainability is defined as “meeting the needs of the present without compromising the ability of future generations to meet their own needs .” The important question to ask is why we are discussing sustainable energy, and the answer is either we have limited sources of energy or we are polluting our environment at the incredibly fast rate. In fact, we are facing both of these challenges, but at the consumer level, we don’t realize these.
The major sources of energy are coal, oil and natural gas. Two major problems with these resources are they are: 1) limited and are getting depleted; this means that our future generations will face energy scarcity. 2) Coal, the main energy source emit lots of carbon dioxide, a green house gas which eventually results in the greenhouse effect. The greenhouse effect deals with heating of our climate which eventually melts the glaciers raises water levels and affects global ecosystem badly.
Sustainable energy aims to find solutions to our existing energy problem by proposing renewable energy sources which regenerate naturally and produce clean energy. These sources include solar, wind, water, biogas, geothermal energy. All these sources are inexhaustible. Sustainable energy also includes the practices of energy efficiency and conservation.
Stephen Pacala, an environment biologist at Princeton University mentions that we can handle the increasing carbon dioxide challenge with following four options:
A point x in a two-dimensional space represents a vector because it has a magnitude and a direction with respect to the center (0, 0). A scalar multiplication of x represents another vector which lies on the same line (elongated or scaled down) as that of vector x. When we multiply vector x with a matrix A, it again results in a vector but now the resultant vector will be either in the same previous direction as that of x or in a new direction. Also, the resultant vector will get either scaled up or down. If the resultant vector lies in the same direction then we say vector x is Eigen vector of matrix A, otherwise, it is not an Eigen vector. A 96 seconds youtube video explains the same concept visually.
Corresponding to Eigen vector, we too get a scalar value () which on multiplying vector x results in the same vector as that obtained by above matrix multiplication. Mathematically,
Here, refers to Eigen Vector and
refers to Eigen value.
References:
Follow these steps to install RaZberry: