Wednesday, December 29, 2010

::Chemsketch::


ACD/ChemSketch

Drawing Chemical Structures and Graphical Image

  ACD/ChemSketch is a chemically intelligent drawing interface that allows you to draw almost any chemical structure including organics, organometallics, polymers, and Markush structures. Use it to produce professional looking structures and diagrams for reports and publications.

Alhamdulillah, for this week assignment we are required to use some tools of the ChemSketch to draw those objects:-
• A diagram of the energy of reaction
• Various types of orbitals
• Vacuum distillation apparatus
• A two-chain DNA strand
• Lipids and micelles


 1) Drawing the Energy of Reaction Diagram



Energy graph
2) Drawing Different Kinds of Orbitals
p-orbital, d-orbital and pi-orbital






3) Drawing Vacuum Distillation Apparatus


Vacuum distillation apparatus
4) Drawing a Two-chain DNA Strand


DNA strand
5)Drawing Lipids and Micelles

Phospholipids
 Benefits of using this tool:

  • Visualize chemical structures in 2D or 3D to gain more insight into spatial configurations, and relationships to molecular properties
  • Create professional reports, working with structures, text, and graphics simultaneously
ACD/ChemSketch also allows you to check other tautomeric forms for your drawn structure. Consideration of tautomeric forms is very important for structure searching, predictions (such as physicochemical properties, i.e., pKa), and interpretation (i.e., of NMR, MS, and other analytical data). 

The following is a table of featuresyou can use with this chemsketch application; between freeware and commercial:

Option
Freeware
commercial

ACD Dictionary - yes
Search for structure in different
computer file
-
yes
Restricted version of ACD/chemfolder
(SDfile viewer)
-
yes
Export to Adobe@PDF
yes

yes
ACD/toutomers
yes

yes
ACD/Name freeware
yes

yes
ACD/ 3D viewer
yes

yes
ACD/I lab add on for ACD/labs online
yes (must be installed separately)

yes
Instruction for author


yes (must be installed separately)

yes
Advanced drawing tools yes
yes
AC/lab extension for chemdrew -
yes
Technical support -
yes


Anything related about this tool can be explored through this site. Just click 



 

Tuesday, December 21, 2010

HTML

 

HTML Introduction


What is HTML?

HTML, which stands for HyperText Markup Language, is the predominant markup language for web pages. A markup language is a set of markup tags, and HTML uses markup tags to describe web pages.
HTML is a language for describing web pages.
  • HTML stands for Hyper Text Markup Language
  • HTML is not a programming language, it is a markup language
  • A markup language is a set of markup tags
  • HTML uses markup tags to describe web pages 


HTML Tags

HTML is written in the form of HTML elements consisting of "tags" surrounded by angle brackets (like <html>) within the web page content. HTML tags normally come in pairs like <b> and </b>. The first tag in a pair is the start tag, the second tag is the end tag (they are also called opening tags and closing tags).
HTML markup tags are usually called HTML tags
  • HTML tags are keywords surrounded by angle brackets like <html>
  • HTML tags normally come in pairs like <b> and </b>
  • The first tag in a pair is the start tag, the second tag is the end tag
  • Start and end tags are also called opening tags and closing tags 

HTML Documents = Web Pages

  • HTML documents describe web pages
  • HTML documents contain HTML tags and plain text
  • HTML documents are also called web pages
The purpose of a web browser (like Internet Explorer or Firefox) is to read HTML documents and display them as web pages. The browser does not display the HTML tags, but uses the tags to interpret the content of the page:

<html>
<body>

<h1>My First Heading</h1>

<p>My first paragraph.</p>

</body>
</html>

Example Explained

  • The text between <html> and </html> describes the web page
  • The text between <body> and </body> is the visible page content
  • The text between <h1> and </h1> is displayed as a heading
  • The text between <p> and </p> is displayed as a paragraph

 

HTML Links

HTML links are defined with the <a> tag.

Example:
 <a href= "http://www.w3schools.com"> This is a link </a>

 Let's explore more

 

HTML Image

Note: The name and the size of the image are provided as attributes.
Example:  HTML images are defined with the <img> tag.<img src="w3schools.jpg" width="104"

 

 

 

 

 

HTML Tables

Tables are defined with the <table> tag.

A table is divided into rows (with the <tr> tag), and each row is divided into data cells (with the <td> tag). td stands for "table data," and holds the content of a data cell. A <td> tag can contain text, links, images, lists, forms, other tables, etc.
Table example:
 
<table border="1">
<tr>
<td>row 1, cell 1</td>
<td>row 1, cell 2</td>
</tr>
<tr>
<td>row 2, cell 1</td>
<td>row 2, cell 2</td>
</tr>
</table>

HTML code above looks in a browser:

Example:

Some important thing you have to know about HTML:
 











What is HTML?

HTML is a language for describing web pages.
  • HTML stands for Hyper Text Markup Language
  • HTML is not a programming language, it is a markup language
  • A markup language is a set of markup tags
  • HTML uses markup tags to describe web pages

 HTML Tags

HTML markup tags are usually called HTML tags
  • HTML tags are keywords surrounded by angle brackets like <html>
  • HTML tags normally come in pairs like <b> and </b>
  • The first tag in a pair is the start tag, the second tag is the end tag
  • Start and end tags are also called opening tags and closing tags


HTML Documents = Web Pages

  • HTML documents describe web pages
  • HTML documents contain HTML tags and plain text
  • HTML documents are also called web pages


What You Need

You don't need any tools to learn HTML at W3Schools.
  • You don't need an HTML editor
  • You don't need a web server
  • You don't need a web site


HTML Element Syntax

* An HTML element starts with a start tag / opening tag
* An HTML element ends with an end tag / closing tag
* The element content is everything between the start and the end tag
* Some HTML elements have empty content
* Empty elements are closed in the start tag
* Most HTML elements can have attributes