Sunday, 13 July 2014

literature review - Thiha

according to this link -The biggests factors which reduce Wi-Fi performance are the effect distance and internal walls have on signal strength.it uses radio wave to transmit internet.thick layer of brick, stone or concrete can hinder the connectivity.

according to this link - Aluminum foil can block up the wireless connection . also that since the wireless connection could not leak outside of the aluminum foil, it bounces back inside the space and thus the devices inside are more likely to see improvement in connection signal.

Tuesday, 8 July 2014

Literature Review(Heat)

Heat does affect the efficiency of a solar panel at producing electricity. When the temperature increases, it negatively affects the efficiency of the solar panel. (Damian Waco 2011)




source:
http://www.civicsolar.com/resource/how-heat-affects-solar-panel-efficiency

Literature review (Wei Xuan)

How to test Wireless connection to a computer .
According to this Link , since we only have a wireless router , the best way to test the wireless connection is to take two network devices and wirelessly connect one your router (we'll deem this Device 1) and using an Ethernet cable, connect the second device (Device 2) to one of the LAN ports on your router. 
Set up a network share folder on Device 2 so you can access it from Device 1. In Windows Explorer, this is done by creating a folder, right-clicking on it, clicking the "Sharing" tab, and then the "Share" button. In the image below, I created a folder called "testshare" and gave Read/Write permissions to "Everyone" on my network (you can remove or change permissions after testing for security, but for the test, Device 1 will need permission to write to the share). But for this we will need a windows computer.

literature review (Wei Xuan)

According to this Link , the wifi signal in water is almost close to 0 .  RF transmissions in water need long wavelengths, like AM frequencies or lower. 

Wednesday, 2 July 2014

Project title and Research Title

Title : Factors affecting the strength of wifi signals 

Research Title : Finding the strength of wifi signals through different materials

Equipments needed :  Wireless router, different materials e.g cloth , cement , wood , metal , Windows computer 

Tuesday, 1 July 2014

Research questions


PersonResearch QuestionsIndependent VariableDependent Variablecontrolled variableHypothesis
Ivan Gan How does the magnetic force affect
electronic devices
Magnetic fieldCondition of electronic deviceType of electronic deviceIf i increase the magnetic force on the device , the device will be spoiled faster.
Wei XuanHow does heat affect the efficiency
of a Solar Cell
Amount of heat applied to the solar panelThe amount of electricity made Type of Solar Panel , Environment if i increase the temperature , the amount of
electricity produced will decrease
Pat GuanHow does impurities affect the boiling
/freezing point of water?
Temperature of FreezerBoiling/Freezing Point of WaterPurity of waterIf I increase the amount of impurities, the
Boiling/Freezing Point will be lowered
Thihahow does the angle of sunlight affect
the amount of energy input into solar
panel?
Angle of Light applied on the solar panelThe amount of energy producedtype of solar panel , type of lightif the sun is perpendicular to the surface of the panel it will receive the most amount of energy