As a web designer, you should design your websites to give your visitors the greatest ease of use, the best impression and most important of all a welcoming experience.
It doesn’t matter if you had the greatest product in the whole world — if your website is poorly done you won’t be able to sell even one copy of it because visitors will be driven off your website by the lousy design.
When I’m talking about a “good design”, I’m not only talking about a good graphical design.
A professional web design will be able to point out that there are many components which contribute to a good website design — accessibility design, interface or layout design, user experience design and of course the most straightforward, which is graphic design.
Hence, I have highlighted some features of the worst web designs I’ve come across. Hopefully, you will be able to compare that against your own site as a checklist and if anything on your site fits the criteria, you should know it’s high time to take serious action!
1) Background music
Unless you are running a site which promotes a band, a CD or anything related to music, I would really advise you to stay away from putting looping background music onto your site.
It might sound pleasant to you at first, but imagine if you ran a big site with hundreds of pages and everytime a visitor browses to another page on your site, the background music starts playing again.
If I were your visitor, I’d just turn off my speakers or leave your site. Moreover, they just add to the visitors burden when viewing your site — users on dial up connections will have to wait longer just to view your site as it is meant to be viewed.
Gerald Mason
http://www.articlesbase.com/internet-articles/web-design-elements-you-should-avoid-109596.html
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2 Responses for "Web Design Elements You Should Avoid"
discuss 5 safety precautions/design elements used in modern nuclear reactors to avoid disasters in the future?
How do we Prevent disasters like the Chernobyl disaster
There are many different types of nuclear reactors, and each one has its own safety and control methods. Take a look at Wikipedia's Nuclear Reactor page.
You mention Chernobyl's reactor number 4. It was a graphite moderated thermal reactor, of the same basic design as had been used on the K-19, only larger (an RBMK). Graphite moderated reactors are the least "idiot proof" of all the nuclear reactor designs. Unfortunately, Chernobyl was in the Soviet Union. But you can rest easy(?), there are only 3 sites currently operating 11 RBMK reactors in Russia. Graphite moderated reactors were never used as power reactors outside of the USSR. However, the very first man-made reactor was graphite moderated.
After the Chernobyl accident, the RBMK design was modified with 5 additional safety features.
1) The fuel was enriched further to reduce reliance on cooling water as a moderator.
2) More manual control rods were added.
3) More neutron absorbers were added to prevent accidental operation at low-power.
4) The SCRAM was reduced from 18 to 12 seconds.
5) Precautions were put in place to prevent safety systems from being bypassed (which is what happened at Chernobyl).
In the US and other countries, light water moderated thermal reactors are commonly used in power plants. Particularly common are the pressurized water and boiling water types. In these reactors, the water is necessary as a moderator. In fact, the reactor won't operate if the water is removed (boiled out). Therefore, these reactors have a built-in negative feedback. If the reactor power increases too high, it will heat up the moderator, which will lower the density of the water and reduce its moderating efficiency, resulting in decreased power.
Common safety features of a water reactor are:
1a) Independently movable absorber rods which can be quickly and automatically inserted, even in the even of a power failure.
1b) In the event of a real emergency, liquid neutron absorbers can be injected into the reactor.
2) SCRAM times of 4 seconds or less.
3) They are loaded with less fuel than is necessary for criticality. Even if they lost all coolant, the reactor vessel would be hot and damaged, but not a meltdown. Putting the reactor vessel in a pool helps to avoid the "hot and damaged".
4) Bunker-like containment buildings to contain most of the radiation released in a catastrophe.
5) Lots of indicators and sensors so that the operators know what's happening.
The Three Mile Island accident is perhaps the best example of how safe these reactors are. Even though it lost coolant and had a partial "meltdown", the reactor was recovered, and the radiation was contained. Contrast that with Chernobyl, which had a full meltdown, and a hydrogen explosion and fire which destroyed the reactor building.
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