Paleothermometer: Difference between revisions

From formulasearchengine
Jump to navigation Jump to search
en>Bibcode Bot
m Adding 0 arxiv eprint(s), 1 bibcode(s) and 0 doi(s). Did it miss something? Report bugs, errors, and suggestions at User talk:Bibcode Bot
 
en>Monkbot
Line 1: Line 1:
I would like to introduce myself to you, I am Jayson Simcox but I don't like when people use my complete title. He is an information officer. What me and my family adore is doing ballet but I've been taking on new things lately. Mississippi is exactly where his house is.<br><br>Here is my webpage: real psychic ([http://bigpolis.com/blogs/post/6503 mouse click the next web page])
{{move portions from|Antenna effective length|date=July 2013}}
{{Antennas|Characteristics}}
 
In [[telecommunications]], the '''antenna factor''' is defined as the [[ratio]] of the incident [[electromagnetic field]] strength to the [[voltage]] ''V'' (units: V or µV) on the line connection of an [[antenna (radio)|antenna]].
 
For an electric field antenna, the field strength is in units of V/m or µV/m and the resulting antenna factor ''AF'' is in units of 1/m:
 
: <math>AF = \frac EV</math>
 
If all quantities are expressed logarithmically in [[decibel]]s instead of [[SI unit]]s, the above equation becomes
 
: <math>
AF_{\mathrm{dBm}^{-1}} =
E_\mathrm{\mathrm{dBV/m}} - V_{\mathrm{dBV}} =
E_\mathrm{\mathrm{dB}\mu\mathrm{V/m}} - V_{\mathrm{dB}\mu\mathrm{V}}
</math>
 
For a magnetic field antenna, the field strength is in units of A/m and the resulting antenna factor is in units of A/(Vm).  For the relationship between the electric and magnetic fields, see the [[impedance of free space]].
 
In a 50 Ω system, the antenna factor is related to the [[antenna gain]] ''G'' and the wavelength λ via:
 
: <math>
AF = \frac{9.73}{\lambda \sqrt{G} }
</math>
 
The variable G means antenna gain (dimensionless) and it can be written in terms of effective aperture A to obtain the final expression considering the [[impedance of free space]] (376.7Ω) and the load as 50Ω.
The antenna effective aperture can be written as A = (λ<sup>2</sup>G)/4π.
 
==References==
* [http://www.tdkrfsolutions.com/DataPDFs/antenna_paper_part3.pdf Interpreting Antenna Performance Parameters for EMC Applications]
* [http://www.djmelectronics.com/articles/emc-antenna-parameters-p3.html Interpreting Antenna Performance Parameters for EMC Applications]{{Dead link|date=July 2010}} An excellent page with summaries of all the relevant equations
* [http://www.antenna-theory.com/definitions/antennafactor.php Antenna Theory]
 
 
[[Category:Antennas (radio)]]

Revision as of 04:18, 28 January 2014

Template:Move portions from

google.deCheap Hostgator Hosting, http://www.fundacaonokia.org/?option=com_k2&view=itemlist&task=user&id=71687. When it comes to web hosting leaders, HostGator is plainly a leading tier option. The success HostGator has attained has actually been unparalleled. They are among the world's 10 biggest hosting business. According to their site, they host well over 2,500,000 domains. They have likewise been ranked number 21 on the Inc 5000 fastest growing companies in America. From the years 2005 to 2008, HostGator accomplished a 900 % boost in profits. So as you can tell HostGator has been really successful. We freely admit here at Webhosting Mentor, that HostGator places as a top favorite within our team. Now HostGator didn't pay us to say that. Its just the way it has actually fallen out. More of us consistently utilize this platform due to the fact that it just conforms with what we such as.
Now lets learn why

Dependability

Just like the various other hosting services we advise, HostGator has a state of the art information center with backup power generators and all of the techno goodies to make her hum. HostGator likewise went an action further and introduced a Gigabit Uplink with a Surefire 20mbit connection. HostGator has actually also executed a number of layers of network security making sure the safety of all your details.

Cost

In in our book, when it comes to web hosting, price is a big offer. HostGator is most likely the closest thing that you will find to pulling the bunny out of the hat. HostGator is also well understood for the incredible endless diskspace and bandwidth they offer.

Control board

HostGator utilizes a remarkably simple to navigate cPanel. The HostGator cPanel is one of one of the most user friendly full showcased control panels. The fantastico feature has become everyone's favored attribute. It permits webmasters to install content management systems like WordPress and drupal, not to mention all the online forums, blog sites and portals that you can enable. Just click on their link below and you can in fact demo their cPanel in order to get "feel" for how it operates. Or try their cost-free SiteBuilder Device as they have a demo for that as well.

Consumer Service

One of the reasons HostGator has been so effective is the fact that they offer quality client service. HostGator offers award winning support 24/7/365. HostGator's aim it to address any web hosting issue you have and provide suggestions that can save you a lot of time and money.

Summary

Limitless disk area
Unrestricted bandwidth
Unrestricted domains
Immediate backups
99.9 uptime assurance
WordPress friendly
45 day cash back assure
Free setup
24/7 support
$50 free of cost Google AdWords
Website home builder

Conclusion

HostGator has actually shown it is one of the leaders in the webhosting industry. They have the goods to back it up too and at the right rate. They provide services to novices and professionals alike. With the endless disk area and bandwidth the possibilities of how numerous sites you can have are limitless. HostGator provides top of the line customer support and reliability. It is no error that HostGator is one of the fastest expanding business in America. Word of mouth is getting around and people are reacting in a favorable way. Like I stated earlier, some of us below have already made the jump into the gator bandwagon. If you want to find out more about their hosting plan, merely click the link below.

In telecommunications, the antenna factor is defined as the ratio of the incident electromagnetic field strength to the voltage V (units: V or µV) on the line connection of an antenna.

For an electric field antenna, the field strength is in units of V/m or µV/m and the resulting antenna factor AF is in units of 1/m:

AF=EV

If all quantities are expressed logarithmically in decibels instead of SI units, the above equation becomes

AFdBm1=EdBV/mVdBV=EdBμV/mVdBμV

For a magnetic field antenna, the field strength is in units of A/m and the resulting antenna factor is in units of A/(Vm). For the relationship between the electric and magnetic fields, see the impedance of free space.

In a 50 Ω system, the antenna factor is related to the antenna gain G and the wavelength λ via:

AF=9.73λG

The variable G means antenna gain (dimensionless) and it can be written in terms of effective aperture A to obtain the final expression considering the impedance of free space (376.7Ω) and the load as 50Ω. The antenna effective aperture can be written as A = (λ2G)/4π.

References