Friday, January 4, 2013

Anti Radiation (radiation-protection) stickers for mobiles


If you're looking for ways to limit your exposure to the electromagnetic emissions from your cell phone, know that, according to the FTC, there is no scientific proof that so-called shields significantly reduce exposure from these electromagnetic emissions. In fact, products that block only the earpiece – or another small portion of the phone – are totally ineffective because the entire phone emits electromagnetic waves. What's more, these shields may interfere with the phone's signal, cause it to draw even more power to communicate with the base station, and possibly emit more radiation.

For More information refer below sites

Do gold-plated radiation-protection stickers work?


FTC Charges Sellers of Cell Phone Radiation Protection Patches with Making False Claims



A SAR value is a measure of the maximum energy absorbed by a unit of mass of exposed tissue of a person using a mobile phone, over a given time or more simply the power absorbed per unit mass. SAR values are usually expressed in units of watts per kilogram (W/kg) in either 1g or 10g of tissue.


EXPOSURE LIMITS

In Europe, the European Council Recommendation 519/1999/EC for exposure guidelines has adopted the recommendations made by the International Commission on Non-Ionising Radiation Protection (ICNIRP Guidelines 1998). In the US, the FCC, Federal Communications Commission, sets the radio frequency safety guidelines that all phones must meet before being sold in the US. Current reference standards and limits (status January 2001).

Region / Country
SAR measurement protocol
SAR Limit
Europe
European Specification
ES 59005 (1998)
2.0 W/Kg in 10g of tissue
Australia
Australian Communications Authority (ACA) Standard
(ACA RS 1999)
1.6 W/Kg in 1g of tissue
US
Federal Communications Commission (FCC)
Guidelines (FCC 1997)
1.6 W/Kg in 1g of tissue

Thursday, January 3, 2013

Excel Macro for the All the work sheet names

Excel Macro for the All the work sheet names


Sub SheetNames()
j = 1
ShitCount = Worksheets.Count
Sheets.Add.Name = "SHeetNames"
Columns(1).Insert
    For i = 1 To Sheets.Count
        Cells(i, 1) = Sheets(i).Name
    Next i
End Sub

Monday, December 24, 2012

How to Test Your Xperia Phone [before buy it]

Before you buy a new phone We want to make sure that its working.
In the case of buying an Android phone (Sony Xperia P) follow the below simple test by yourself and verify the functions and hardware of it works correctly.

1. Open the Dialler and enter *#*#7378423#*#* to access the service menu.
2. Tap the Service Test and check each test available (almost everything that we need to check is available there), Keyboard, Touch screen, Display, Camera, mic, seekers, etc...

Sony Xleria P Boot Loader Unlocked Vs Locked

Unlocked
Locked
Can flash customer kernels and/or Roms
Cannot install Custom kernels
May void the warranty of your phone
Can gain the root access without unlocking
DRM security keys will be lost
Simply digital rights management (DRM) key are used to manage the copyrights of media files
Can install the Custom Roms
Will not give you root access just by unlocking
Can install CWM Recovery
Certain functions in your phone might cease to work (DRM related,…)

Might also damage your phone permanently. In the worst case (by Overheating with over clocking)

Everything that can do with a locked boot loader J (of course without DRM)



** Sony itself allowed and supporting to unlock some of Xperia NXT series phone (released after 2011) **

To check if your phone can be unlocked, follow the steps below:

  1. First, open the dialler and enter *#*#7378423#*#* to access the service menu.
  2. Tap Service info > Configuration > Rooting Status. If Boot loader unlocks allowed says Yes, then you can continue with the next step. If it says No, or if the status is missing, your device cannot be unlocked.
For More info: http://unlockbootloader.sonymobile.com/

Friday, December 21, 2012

How to create large files on Windows


We can create new files (any type) with a given size Using the windows command prompt

Go to command prompt (For Win 7 Open CMD as an Administrator)
Use the below command to create the required file
length - Size of the required file in bytes

Usage : fsutil file createnew
   Eg : fsutil file createnew C:\testfile.txt 1000

Sunday, October 24, 2010

Setting up the Apache Load Balancer

Install the Apache 2.2

Edit the conf\httpd.conf as mention below.


#Change the Listen port as you need
Listen 8990

#Load the following modules (Uncomment)
LoadModule proxy_module modules/mod_proxy.so
LoadModule proxy_ajp_module modules/mod_proxy_ajp.so
LoadModule proxy_balancer_module modules/mod_proxy_balancer.so
LoadModule proxy_connect_module modules/mod_proxy_connect.so
LoadModule proxy_ftp_module modules/mod_proxy_ftp.so
LoadModule proxy_http_module modules/mod_proxy_http.so
LoadModule rewrite_module modules/mod_rewrite.so
LoadModule status_module modules/mod_status.so

#Add following to Set the Env variables (Not required)
SetEnv proxy-sendcl 1
SetEnv proxy-nokeepalive 1 #keep the connections live
SetEnv downgrade-1.0 1 #downgrade the HTTP version to 1.0

#define the proxy pass for load balancer of the cluster
ProxyPass / balancer://mycluster/
ProxyPassReverse / balancer://mycluster/
ProxyPass /ccx balancer://mycluster/
ProxyPassReverse /ccx balancer://mycluster/

#define the cluster members of the balancer

Reference : http://httpd.apache.org/docs/2.1/mod/mod_proxy.html
http://httpd.apache.org/docs/2.1/mod/mod_proxy_balancer.html

Tools and Tips - Google App Engine - Google Code

Tools and Tips - Google App Engine - Google Code