الاثنين، 30 سبتمبر 2013

Hydraulic Disc Brakes

Hydraulic disc brake uses brake fluid ( Ethylene Glycol HO–CH2CH2–OH) to transfer pressure from controlling mechanism to braking mechanism. It was first used in 1914 for racing cars.It is based on the principle of Pascal Law which states that "The pressure exerted anywhere in a mass of confined liquid is transmitted undiminished in all direction throughout the liquid".
It consists of pipeline containing fluid. One end of which is connected to the master cylinder fitted with a piston attached to the brake foot pedal and other end of the pipeline is connected to the wheel cylinder having two pistons attached to the brake shoes.Area of the cross section of the wheel cylinder is greater than the area of the cross section of master cylinder.

Why we need disc brakes?
Though both systems use hydraulic brakes but in drum brakes, braking system started to fade because of servo effect, this problem has been greatly reduced in disc brake.Moreover, their are other problems within the assembly line which cause braking strength weak.

How it works?

It works on the very simple principle, when force applied at one point, it is transmitted to another point using an in-compressible fluid.When the brakes are applied the foot pedal is pushed due to which pressure is exerted on the fluid in the master cylinder.This pressure is transmitted equally and undiminished throughout the fluid and to the pistons of the wheel cylinder, therefore pistons of the engine pushed outwards and the brake shoe get pressed against the rim of the wheel due to which motion retards and vehicle starts to slow down.

السبت، 28 سبتمبر 2013

Candle Light Powered Fan



Candle light fan use technology which converts heat directly into electricity using a effect called Seebeck. The only problem with these fans is their efficiency which is lesser than 10 %. To use this technology we need thermoelectric materials such as Bismuth Telluride(Bi2Te3) or Lead Telluride (PbTe).

Is their any difference ?

Yes, it is very different technology and unlike Dynamo (First Electric Generator, it is most commonly used for bicycle headlight),their is no moving part involved in electricity generation with thermoelectric materials.

What is the use of this project?

It helps you to understand basic concept of thermoelectricity which is used in spacecraft as Radioisotope to convert the heat released by the decay of a suitable radioactive material into electricity and in automobiles where it helps to reuse waste heat from Internal Combustion Engine.

How to Build this?

You can find complete instructions about this fan here.


الأحد، 15 سبتمبر 2013

Physics Projects

Physics is everywhere, from walk to talk , from electronics to robotics and from computer science to aeronautics.From ancient times people use physics in construction, wars, travelling and in many more things.In this post we will discuss some of the projects related to this extraordinary field.
Pedal Powered Water filter: Filter water without using home electricity and filters.
Solar Powered Bicycle: Run your bicycle on solar power
Wind mill water pump: They are not new for us but still it would be interesting for us to build one on our own.

Color and Light
College Prep physics on light and color

Human Eye concept based on Color and light :

How Vision Works?

Physics and Human Eyes
Your sense of Sight

Related Project
Bending of Light 

Build Your Own Maglev
Maglev (MAG: is used for magnetic, LEV: is used for Levitation) is a train which use power of magnets instead of fuel with its highest recorded speed is 581 km/hr.
Complete Details about Maglev Project
Compare Strength of Wood using three different Paint's.

Is there any relation between paint and strength? Can we increase the strength of our furniture’s just by painting it? This project would help you finding that out.

Marion Smith :The Effect of Paints on the Strength of Wood







Try to build your own Roller Coaster
Model roller coaster for physics project
Pdf files related to roller Coaster Project :
Mathematica of Roller Coaster
Ppt of roller Coaster from Virginia University in Pdf format

Other related :
What wiki says about Roller Coaster
Incredible Web Roller Coaster
Videos of Roller Coaster

Build your Telescope

How to build telescope
simple Galilean telescope
Simple Galilean Telescope 

simple Galilean telescope
simple Galilean telescope
Engines:

Fabrication of cam-less engine:A camless is a kind of free valve engine uses electromagnetic, hydraulic, or pneumatic actuators to open the poppet valves instead. Actuators can be used to both open and close the valves, or an actuator opens the valve while a spring closes it.

Trebuchet or Catapult: 

What is Trebuchet?
In most simple words, we can say that trebuchet is a machine build to throw object to a distance.In our post Catapult Project we saw how we can build one for us.

Concept:
It is based on simple concept of storing potential energy and when requires convert it into kinetic energy.So, to build good trebuchet we need to store as much energy and use it with bare minimum loses.

How Trebuchet works?


Pelton Wheel:
The Pelton wheel is an impulse turbine which is among the most efficient types of water turbines.The Pelton wheel extracts energy from the impulse (momentum) of moving water, as opposed to its weight like traditional overshot water wheel.Older turbines used water power inefficiently.The shape of Pelton turbine made it more efficient.

Useful links :
Calculations for my Pelton wheel turbine
Pelton Turbine Manual (1.6 MB)




Other Good Websites :

Research Projects in Physics 
Fun Physics / Astronomy Projects
Ocean Physics Laboratory 
Windmill Power Generation system
Internal Combustion engine

Bicycle :
Solar Powered bicycle
Steam Engine Powered Bicycle

Related :
Physics FAQ
Solar Energy Projects
Pedal powered Washing Machine
HydroPower Plants
Magnetic Levitation Train
Solidification into crystalline and amorphous states

الخميس، 12 سبتمبر 2013

Solar Powered Bag

From last few years phones are getting smart, Laptops are becoming Tablets and CD Players are becoming iPods. All these changes make us more dependent on electronic devices than ever. Though these devices keep us connected, but when battery runs out they become liability. That makes battery charging one of the most important needs of today’s world.
In my post mobile charger using bicycle, I discussed how we can charge our battery while riding on a bike. Today we will discuss about Solar powered Bag which is not only useful and handy but uses green technology too. Solar bag consists of skinny film solar cells and batteries. It contains a flexible mono crystalline solar panel, battery, charge controller, plugs, cords and light bulbs. It provides users with power up to 120 watt-hours/day, capable of powering electronic equipment's rated up to 300 W.

What is Monocrystalline solar Panel?
Monocrystalline silicon is the base material of the electronic industry. It consists of silicon in which the crystal lattice of the entire solid is continuous, unbroken (with no grain boundaries) to its edges. It can be prepared intrinsic, i.e. made of exceedingly pure silicon alone, or doped, containing very small quantities of other elements added to change in a controlled manner its semiconducting properties.

How it works?

The solar panels convert sunlight into electricity, which is stored in the batteries and can be used to power portable electronic appliances like mobile phones and mp3 players.

Advantages:
  • Solar backpacks are light-weight, hence making it easier to carry. 
  • Flexible solar panels also are light and portable, as well as waterproof. 
  • Backpack allows patients to carry medical devices with them.

الأربعاء، 14 أغسطس 2013

Solar Energy Project Ideas

Solar energy is a form of energy which is widely available in abundance and have many different uses. Energy provided by sun in 1 hour, if measured; is equivalent to energy consumed on earth in one whole year. And for this reason, their is ample opportunity to work and use this energy in comparison to any other form.

It is radiant light and heat from the sun, has been harnessed by humans since ancient times from drying clothes to generating electricity using a range of ever-evolving technologies.
Though it has many uses,but we often this energy as solar power, which is the conversion of sunlight into electricity, either directly using photovoltaics (PV), or indirectly using concentrated solar power (CSP) with the help of lenses or mirrors and tracking systems to focus a large area of sunlight into a small beam.

Solar Powered Motor

This project has 12V DC water pump,12V 7ah battery that was charged by my 6.5 watt solar cell and was able to pump water. This system seems to work really well.



Solar Water Heater

We can save large amount of electricity if we start using solar water heater at the place of traditional heaters. If we implement it using cogeneration, it would be really effective.
What wiki says about Solar Water Heater?

Related Pdf :
Parabolic Trough Water Heating System ( pdf )
Complete detail of this project with photos, outline and drawings. 

Sun Tracker Project : devices that orient various payloads toward the sun.

Produce Fuel using Sun Energy: harness energy from the sun to produce synthetic gas consist of water, CO2 and Water.

Remote Control Plane : Flying Solar RC Plane's Panels, Batteries and Motors. Working on this project is easy, for experiment purpose, you can purchase electrical aircraft and replace it source of charging from batteries to solar.

3D Solar Cells : New form of cells, that capture nearly all of the light that strikes them. When used in the place of traditional cells, efficiency of the cell improves considerably.

LED Lights : Light emitting diodes are very reliable and can works in extreme conditions.When powered by sun, they can be installed at the distant places in minutes.

Stirling Engine Generator 

Solar Cooker
Solar cooker is a device which uses solar energy to heat and cook our food. It is very simple device and works on basic concept of concentration of energy at one point.It takes only 45 minutes to build a simple cooker.

Why it is important?
Energy plays a vital role in human development and welfare.Solar energy is the cheapest, inexhaustible
and can be used for cooking as well as various other activities.

Things you will need:
• shoe box
• aluminum foil
• string
• tape
• straws
• manila folder
• marshmallows (white and
chocolate, or other color)

How to build solar oven?
Pizza Box Solar Cooker (pdf)
Design, Development and Testing of Paraboloidal Solar Cooker
Build Reflective solar cooker(pdf file)

Solar Powered Mobile Charger

Solar Toy Car
 

A solar vehicle is an electric vehicle powered completely or significantly by direct solar energy. Usually, photovoltaic (PV) cells contained in solar panels convert the sun's energy directly into electric energy. The term "solar vehicle" usually implies that solar energy is used to power all or part of a vehicle's propulsion. Solar power may be also used to provide power for communications or controls or other auxiliary functions.

What is Solar Car ?
How can solar panels power a car?

How Solar Car Works ?

Solar car works on a very simple concept. It has solar panels on its top, which charge battery attached to it via wire. This battery is connected with small DC motor installed in the chassis of the car. This motor is connected to the wheels of the car via gears. In simple words, it is basic Remote control cars with only difference is that its battery gets charged via solar panels instead of traditional sources.

How to make Solar Powered Toy Car(Video) :




Solar Powered Refrigerator

Solar Chimney

Beam Circuit Solar Engines

Solar Powered Bird Scarer 

Steam engine powered by sun light

Solar Turbine generator

Solar Powered Path Finding vehicle

Solar Powered Generator 

Solar Powered Bicycle

Solar Powered Bag 

Solar Insect Robot

Solar powered automatic rain operated wiper

Air Conditioner 

Water Pumps

Solar Powered Boat 

Water Purification System : Filter water anywhere, at the place of camping or in a village where electricity is not available easily.

Carbon Solar Cells

Nanowires : New Innovation in solar energy

Other Webpages:

Stanford Solar Car Projects

Bob Solar Project Blogs

Solar Power Demonstration Projects

High Tech Projects

Creative Projects

1.Painting with three colors : Art tips by Nita Leland

2.You can write your autobiography :

Writing Autobiography is one of the best things in the world. It lets us know about ourselves, and we get to know both positives and negatives of our life, who are our true friends and who are not! Sometime in our hectic life, we forget about many important parts and beings related of our lives and this project will help you in doing the same.


How to start?
Writing Biography is not an easy task, even if it's your own. So, start working towards it as soon as you finish reading this post.
To write your biography, you will need help from lot of people and this is a best part of it as you discuss about your life with others and get their point of view.
  1. You need to do discussions with your family, friends and even enemies 
  2. Carry pencil and paper during these discussions. 
  3. Ask as many questions as you can and without getting offended with their replies.
  4. Don't try to edit negatives and things you don't like.(This will help you in long term)
  5. Arrange all the text chronologically and do write them in your textbook according to your convenience.
  6. Read each conversation twice or more, and find a way and right words to write it interesting.
  7. Write it in language you are comfortable in.
3.Prepare a poster report on some decade for eg 90's .

4.You can redecorate your room :

It will not only give you satisfaction, but also some freshness in your life. Before doing anything, you need to start with easiest task first, it will stimulate you for bigger task ahead.

Steps for Redecorating:

1. Take paper and write about changes you want to do with your room.
2. Before shifting anything, do care about your comfort, whether it will increase or not.
3. Arrange room in a way, by which you can save your time; for ex. if you like reading books on bed,make necessary arrangements, so you can grab your books right from your bed.
4. Redecorating needs time, try to do it on Saturday evening, where you will get Sunday as an extra day.You can either finish your job or if you will have finished it already, you will get a time for rest.

5.Prepare greeting cards for different occasions

Yes, you can purchase them but still handmade card is more precious gift for its receiver than any card purchased.

As you know, making cards requires creativity and various items, you should not wait for the occasion to start. Whenever you get time , make one or two of them for different occasions and give them to your loving one's when occasion arrives.

Starting early has added benefit of getting enough time to purchase things required for card making such as gum, sheets, colors etc.

6.Project about World War 2

World War 2 is one of the most important event of our history and it still affects our lives in one or other way. You can write about reasons, and long term effects of this war. You should try to find answers of questions such as How it changed the dynamics of world politics? What was the reasons behind it? Was it possible to stop it from happening?

7.Write about world most influential and important leaders

الثلاثاء، 6 أغسطس 2013

Computer Final Year Project Ideas


Computer scie nce is the scientific approach to computation and its applications.As a discipline, computer science spans a range of topics from theoretical studies of algorithms and the limits of computation to the practical issues of implementing computing in hardware and software.Due to its range sometime it gets difficult to find topic or idea for final year project.Though I have tried to share as many ideas as possible but it is difficult to cover all the projects on single page.For that reason I have divided this subject into different subsections such as PHP,Java,VB etc. and their links are available at the bottom of post. I hope you will find them useful.

Attendance Management:Using this project you can maintain attendance of the employees.Moreover it can generate monthly and daily report of their attendance and salary slips.Source code
GEMINI: Generic Monitoring Infrastructure for Grid computing and Applications
What is grid Computing?
Details about Generic Infrastructure for Medical Informatics

District collect orate office information integration
Project Details

Jquery Simple Income Tax Calculator 

Automation of ticket booking for performances(ASP.net)
Ticket Booking by Jignesh Desai

Automation of Stock market operations
Stock Market Application

IR Based video streaming on mobile phones
Project Information
Source Code of video Streaming in Pocket PC

Security using IP camera
Video Surveillance using C#
Article about this project

Pervasive Computing
What is pervasive Computing
More about the project

Online recruitment(ORS)
Download

Embedded web server for remote access
Free embedded Ethernet
CodeProject Embedded Server Project

Online on-request courses coordination (ORS)
Templete of Various Documents of this Project from Sourcecodeworld.com (doc)

College management software
Download

Help Desk (OHD) for the facilities in the campus
Download

Development of a micro controller module for a mobile feed dispenser

Call Center Management
Download

8085 Simulator
Download Source Code and Application

2D and 3D Games
Download

Campaign Information System
Download Project Document and Student kit

Pocket Dictionary
Download Open Source Project

Voice over IP
Download Project

File Transfer using PSTN
Download

Security using IP Camera
Download

Virtual Router
Let us find out more about it

Auto- summarize tool
Download Report of this Project ( Pdf) <- Right click and save target as or save link as

SMS Games

SMS based Juke Box

SMS ticket Reservation

Sms Source Code Website

Universal Remote using IR on Pocket PC
Download

Canteen Automation
Download

Library Management(LMS)
Download

Electricity Billing  - Visual Basic , VB.NET
Medical Billing - Visual Basic , VB.NET
SMART BILLING 1.0 - Visual Basic , VB.NET
Card Billing - Visual Basic , VB.NET
Billing and Customer Account Maintenance - Visual Basic , VB.NET

Software Defined Radio

Quiz Application

Discussion Forums 

Income tax Calculator 

Digital Audio Processing 

Spam filter for Search Engine

Hostel Management 

Hospital Management

Personal Finance Management System

Online Auctioning Shop for a campus/organization
Download

Network Print Spool er
Download

HTTP Caching Proxy Server

Vehicle Access Control

Intelligent car transportation

Online leave management

Online Library management ( Download )

Online Sales and Inventory management

Employee Transfer Application 

Feature-rich, Resume Builder Application

Safe and secure Internet banking

Online internet knowledge management for the college (KMS).

Online application for the Training and Placement Dept. of the college

Sixth Sense Technology of Pranav Mistry

Repository and Search Engine for Alumni of College (RASE)

Split scree application for the data entry of the shipments. 

e-Post Office

Lost Articles and Letters Reconciliation

Student Project Allocation management with online Testing (SPM)

Practical online Testing (OTS).

Resource management (RMS)

Online Tickets reservation system for Cinema halls.

Time table generation system for a college.

User friendly ,feature-rich, practical Appraisal Tracker

Development of Effort Tracker

Feature-rich, practical “Web Enabled Estate Agent”

Web Based Mail Client

Work flow based Complaint management (where the complaints are received through emails)

Application for receiving orders for printing digital photographs

work flow based purchase request approval

Defect Tracking System (DTS)

Product Master maintenance

Recipe management

Employee Separation System (E-Separation)

Miles Acquisition System (MAS)

Network packet sniffer

Web Based Meeting Scheduler

Employee Cubicle management

Web based Stationery management

Online Course Portal for a campus

Online Polling System

Design and development of Point Of Sale [ POS ]

Design and development of Speed Cash System [ SCS ]

practical online Survey Tool (OST)

Web/Email based Search Engine

Human Resource Management System 

Optical Character Recognition 

Online Auction System

Web-based Recruitment Process for the HR group for a company

Online Learning System

MetaSearch Engine 

Online Health Monitoring

Meeting Room Booking System

A Tutor: is an Open Source Web-based Learning Management(LMS), designed with accessibility and adaptability in mind.

Lifi Project : It is similar to wifi but twice as faster.For example WIFI has speed of 54 Mb/s it has around 100 Mb/s speed. It use light to transmit data. It has LED which transmit digital data as 0 (light switch off) or 1(light on) .
Knowledge sharing system

Related Projects :
Computer Engineering Project ideas
Java Project Ideas
How to answers Projects