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From Wikipedia

Conversion rate

In internet marketing, conversion rate is the ratio of visitors who convert casual content views or website visits into desired actions based on subtle or direct requests from marketers, advertisers, and content creators. If the prospect has visited a marketer's web site, examples of conversion actions might include making an online purchase or submitting a form to request additional information.

The Conversion rate is defined as follows:

\mathrm{Conversion\ rate} = \frac{\mathrm{Number\ of\ Goal \ Achievements}}{\mathrm{Visits}}

Successful conversions are interpreted differently by individual marketers, advertisers, and content creators. To online retailers, for example, a successful conversion may constitute the sale of a product to a consumer whose interest in the item was initially sparked by clicking a banner advertisement. To content creators, however, a successful conversion may refer to a membership registration, newsletter subscription, software download, or other activity that occurs due to a subtle or direct request from the content creator for the visitor to take the action.


For web sites that seek to generate offline responses, for example telephone calls or foot traffic to a store, measuring conversions can be difficult because a phone call or visitor is not automatically traced to its source, such as the Yellow Pages, website, or referral. Possible solutions include asking each caller or shopper how they heard about the business and using a toll-free number on the website that forwards to the existing line.

For web sites where the response occurs on the site itself, a Conversion funnel can be setup in a site's analytics package to track user behavior.

Methods to increase the conversion in e-commerce

Among the many methods to increase the conversion rate, these are the most relevant:

  • clear distinction of the website for a certain conversion goal (e.g. "increase sign-ins for newsletter")
  • better content (e.g. text, picture, video) of the website that clearly target versus the conversion goal
  • increase usability to reduce the barriers towards the conversion goal and thus reduce the abortion rate
  • good site navigation structure to help users find and browse without thinking too much about where to click
  • show credibility signs like third-party trust logos and good site design to increase trust level of visitor
  • use AIDA (attention, interest, desire, action) to move the user through the conversion funnel
  • use third party certification sites such as [http://www.ibcim.org IBCIM.ORG]


  • Definition of the Conversion rate [http://www.marketingterms.com/dictionary/conversion_rate/]
  • Facts about typical conversion rates and hints how to increase them [http://www.seochat.com/c/a/Website-Marketing-Help/Conversion-Rate-Optimization/]
  • Berkeley-Study on Conversion rate in Spam [http://www.icsi.berkeley.edu/pubs/networking/2008-ccs-spamalytics.pdf]

From Encyclopedia



From Yahoo Answers

Question:give an example for each of the following energy conversions. 1.electrical -> heat 2. mechanical -> sound 3. chemical -> heat 4. heat -> light 5. light -> electrical chemistry homework please help, i dont get it :/ thank you :)

Answers:Energy conversion is the process of transforming energy from one form into another 1) lightbulbs! (lightbulbs releaces heat!) 2) amp/speaker 3) a good example of chemical energy is gass, gass is a good fuel because there are alot of bonds in these long chains of carbons. When you convert chemical energy to thermal energy you are basically ripping all of the bond in thoes carbon chains apart which releses energy in the form of heat 4) fire! 5) solar pannel

Question:A combustion reaction releases 117 J of heat energy. Express the quantity in Kilocalories ?

Answers:1 kilocalorie is 1000 calories and one calorie is 4.18 joules. so, 0.0279 kilocalories.

Question:I'm doing a Rube Goldberg project and I need 5 types of Energy Conversions, know of any websites?

Answers:I guess in it's basic form, there is: 1) chemical to heat to kinetic to mechanical to electrical (gas turbine) 2) heat to kinetic to mechanical to electrical (steam turbine with HRSG) With turbines, the fluid (gas) is heated under high pressure and expands through each stage of the turbine experiencing a pressure drop. The idea is for the pressure drop to increase the kinetic energy of the fluid coming out of the first stage to produce an additional amount of work for the next stage. The increase in kinetic energy is balanced by the drop in temperature of the fluid. This can go on until the lowest pressure is reached and the fluid is still in the gaseous state. 3) chemical to heat to mechanical (car engine) 4) kinetic to mechanical to electrical (wind turbine, hydro turbine) 5) electrical to heat (resistor, toaster oven) 6) solar to electrical to mechanical (solar home, solar vehicle) I'm sure there's more (nuclear energy, decomposting of biodegradable material produces chemical and heat energy, potential energy, etc.) Take a look under "Energy transformation" on Wikipedia. They also explain the inefficiencies that crop up when heat plays a role in the energy conversion. If your familiar with thermodynamics, the Carnot cycle is available to determine the highest efficiencies available during energy conversion (gas engines, turbines, heat pumps and refrigerators).



From Youtube

Science Energy Conversion Project :Our project on Energy Conversions =)

Energy Conversion Devices on Bloomberg :This is one company I totally support. For them, and us, solar power is reality. This video features a hydrogen hybrid vehicle. What more should I say.