At a Glance What is a Connection Pool? A connection pool is a group of database connections with same connection properties maintained in the application server so that these connections can be reused when future requests to the database are required. Connection pool helps to reuse the established connection to serve multiple database request and hence improve the response time. During the application execution, many identical connections will be opened and closed.
Just read the brief blocks of text, view the videos, and check out some of the screened internet links. This is the easiest, fastest way to learn basic electronics.
No sign-up requirements and it is free. The menu table above provides easy access to many interesting electronics topics. Take your time and enjoy. Everyone today is exposed to electronic devices in one way or another. The computer revolution is a good example.
Everyone can benefit from additional knowledge of electronics. Even a quick scanning of this page will help.
Obtain and study various books on electronics - this is really a must as each author will explain things in a little different way to help you grasp the concepts. All the internet links to other web sites found on science. This will save you many hours of searching for good educational material. This site is for everyone from the beginner to expert electrical engineering professional.
There is something here for every level of expertise in the world of electronics. If you just need information on one specific area, use the table above to navigate to the information you need. If you need more instruction - read on. Maybe you already know some basic electronics and want to test yourself to see exactly how much you do know.
Electricity is the movement of electrical charge from one place to another. Electric charges do not exist without their associated electric and magnetic fields. This module will introduce you to many of the basic concepts involved with electricity and magnetism.
Matter consists of atoms. Now we will introduce you to the structure of atoms, talk about electrons and static charge, moving charges, voltage, resistance, and current. All matter can be classified as being either a pure substance or a mixture.
Matter can exist as either a solid, liquid, or a gas and can change among these three states of matter. In electronics the most important matter are conductive metals, and non-conductive insulators.
Here we will stick to thinking in classical physics terms. Nobody completely understands what this charge consists of but we do know a lot about how it reacts and behaves.
The smallest known charge of electricity is the charge associated with an electron. This charge has been called a "negative" charge.
An atoms nucleus has a positive charge. These two un-like charges attract one another.With CorelDraw, you can design your own logos and graphic images for presentations, web sites and print media. While CorelDraw is easy to use, you still must take the time to learn the basics.
Removing the borders on an object requires use of just two tools on the design platform- . To close them, take the Knife Tool and draw a circle around the entire objects. As a result, all the paths have been closed. I want to pay your attention, if you need to close only one path and there are the objects that overlap it, it must be selected.
Polar Grid tool just tap the arrow keys while you drag. Up/Down for inner circles, left/right for diameter divisions. Or, Option/Alt-click with the Polar Grid tool to set specific numbers of divisions.
Feb 14, · 1. Preparation 2. Drawing the background 3. Working with multiple pages and backgrounds 4. Drawing a starburst offer symbol 5. Drawing a lightbulb 6. Converting a drawing into a silhouette 7. Adding photos in random and standardised sizes 8.
Creating text areas and defining style templates 9. Preparing the brochure for print In this tutorial. Graphic Design. From free software to Adobe Photoshop and Illustrator resources, we have the tutorials and guidance you need to nail that design. Tutorial “Creating Vector Graphics“ thicker than the circle.
You can set the particulars (mm, pt, etc.) under If the line is too thin, you can create an outline around the selected line: under object properties you can add an outline then 'convert outline to object' using ctrl+shift+Q.
By the way – this step.