Is Nitrogen Better than Air in Car Tyres

Is Nitrogen Better than Air in Car Tyres? 

Air is 78 percent nitrogen, just under 21 percent oxygen, and the rest is water vapor, CO2 and small concentrations of noble gases such as neon and argon. We can ignore the other gases. There are several compelling reasons to use pure nitrogen in tires:- 

1) Nitrogen is less likely to migrate through tire rubber than is oxygen,which means that your tire pressures will remain more stable over the long term.
Racers figured out pretty quickly that tires filled with nitrogen rather than air also exhibit less pressure change with temperature swings. That means more consistent inflation pressures during a race as the tires heat up. And when you're tweaking a race car's handling with half-psi changes, that's important. 

Carburetor

Carburetor:-

A carburetor or carburettor is a device
that blends air and fuel for an internal combustion engine. It is sometimes, but not always, shortened to "Carb" in North America and the United Kingdom. The carburetor works on Bernoulli's principle: the faster air moves, the lower its static pressure, and the higher its dynamic pressure. The throttle (accelerator) linkage does not directly
control the flow of liquid fuel. Instead, it actuates carburetor mechanisms which meter the flow of air being pulled

What is Mechanical Engineering

 What is Mechanical Engineering?
 
Mechanical engineering is a diverse subject that derives its breadth from the
need to design and manufacture everything from small individual part sand devices (e.g., micro scale sensors and inkjet printer nozzles) to large systems (e.g., spacecraft and machine tools). The role of a mechanical engineer is to take a product from an idea to the marketplace.In order to accomplish this, a broad range of skills are needed.  

Differences Two stroke N Four Stroke Engine

The obvious differences between a two stroke and a four stroke engine:

One difference that is easily noticed is the sound of the engines;
 a two stroke has a higher pitched sound unlike the low pitched sound of the four stroke engine
Another difference noticed when handling an engine is that a four stroke engine weighs more than the two stroke engine

The types of fluids the engines run on:
A two stroke engine requires gas that is mixed with oil
A four stroke engine doesn't require oil to be mixed with gas; therefore less smoke is produced
certain oils are not recommended for Atv's and dirtbikes because they may harm the engine

Water Turbines

Development: Why Water Turbines are developed?

In very ancient days water wheels were developed to convert hydraulic energy into mechanical energy. Basically these water wheels are useful to lift water from well for irrigation purpose. Due to its very slow moving speed, water wheels arenot suitable for all types of purposes. Moreover, the hydro power was available mostly in rural and mountainous regions. It was necessary to install mills which are run by water wheels near to the power stations. The main disadvantage of this system was to run prime movers round the clock, even if some of the machines in the mills may remain idle.

Internal Combustion Engine

Cooling: Why Cooling is required in Internal Combustion Engine?

In Automobile engineering, to get the work done from internal combustion engine, we have to burn air-fuel mixture inside the cylinder. When the combustion of air-fuel mixture takes place in the engine cylinder, a temperature as high as 2500 degree centigrade is reached. To withstand such a high temperature we have to use very high melting point material for construction of engine. 

Types of Air Compressor

 
Compressor: Types of Air Compressor

The two main classification of Air Compressor are.
01) Positive Displacement Type.
02) Dynamic Type.

You will find details of each type from below description.

01) Positive Displacement Air Compressors.
Positive displacement types compressor are those who mechanically displace a fixed volume of air into a reduced volume. Compressor when operated at fixed speed can deliver the constant volume. The discharge pressure is determined by the system load conditions. If the consumption of air ismore then discharge pressure falls below the cut-off pressure & compressor works on load condition.
These types of Air Compressor further classified as

Reciprocating Air Compressor Terms.

Definitions: Reciprocating Air Compressor Terms.

Are you concerned with engineering field? Are you interested in compressor? Do you have any engineering education?

 Before taking up the actual study of air compressor one must know the important terms which are frequently used. These definitions are most essential because they are the fundamentals fair compressor education. One who is interested in reciprocating air compressor must always remember the following definitions.

Air Compressor
This is the machine which is used to increase the pressure of air by reducing its volume.

Reciprocating Compressor
This is a machine which compresses air by means of piston reciprocating inside the cylinder bore.

Single Acting Compressor:-
This is a machine which compresses air in only one end of piston and cylinder.

Double Acting Compressor
This is a machine where air is compressed at both end of piston andcylinder.

Single Stage Compressor
This is a machine in which air from atmospheric pressure is compressed up to desired discharge pressure in single operation (stage).

Compressor:How to Store Air Compressor

Compressor:

 How to Store Air Compressor?

In engineering units, store is the place where machines and spare parts are stored. Actually air compressor is not a machine to keep in store but due to some reasons it requires to be storage for some time. Any air compressor, which is not in service, whether it is installed or not, the unpainted Compressor surface are subjected to Rust and Corrosion. If this occurs to you, you have to take care of that air compressor up to commissioning. However every Compressor going out of factory is always processed with Rust Preventive Oil. This Rust Preventive Oil will work better up to one month and if your requirement is more than this period then you should have to take extra preventive steps.

White and Black box testing techniques

White and Black box testing techniques 

Below is the list White and Black box testing techniques

 

White box testing techniques

- Basis Path Testing

- Loop testing

- Flow Graph Notation

- Cyclomitc complexity

- Graph Matrices

- Control Structure Testing

 

Black box testing techniques

- Graph Based testing Method

- Boundary Value analysis

- Equivalence partitoning

- Error Guessing

- Orthogonal Array testing

Software Development Models

Software Development Life Cycle (SDLC)

Below are some of the popular Software Development Models.

- Waterfall Model

- V Model

- Spiral Model

- Win Win Spiral Model

- Rapid Application Development Model(RAD Model)

- Incremental Model

- Evolutionary prototyping

- Concurrent Development Model

- Extreme Programming

 

Golden Rules of User Interface Design

Regardless of the domain, user interface, or intended device (computer, tablet or phone) for a particular website or application and there are certain universal “Golden Rules” of user interface design. These golden rules have been discussed in numerous publications over the years.
Theo Mandel describes the golden rules of user interface design in great detail in Chapter 5 of his book,
“The Elements of User Interface Design.”

• Golden Rules of User Interface Design – Chapter 5 (PDF)
• SlideShare Keynote Presentation: “The (New) Golden Rules of Web Design”

Theo Mandel’s Golden Rules
The golden rules are divided into three groups:

1. Place Users in Control
2. Reduce Users’ Memory Load
3. Make the Interface Consistent

Networking Admins

Network administration is a discipline in Computer Science that entails maintenance of computer hardware and software that are part of a network. &

System administration is a discipline in Computer Science that entails maintenance and operation of computer systems which includes both hardware and software. 

These two fields are sometimes combined into one and given the name System Administration. As every company in the world try to automate their business processes by making use of computers and computer software, they find themselves hiring System Administrators in the process. 

Block Diagram of Intel 8086

Download the pdf version of these notes.

The 8086 CPU is divided into two independent functional units:

• Bus Interface Unit (BIU)
• Execution Unit (EU)

Fig. 1: Block Diagram of Intel 8086

Features of 8086 Microprocessor:

• Intel 8086 was launched in 1978.
• It was the first 16-bit microprocessor.
• This microprocessor had major improvement over the execution speed of 8085.
• It is available as 40-pin Dual-Inline-Package (DIP).
• It is available in three versions:
• 8086 (5 MHz)
• 8086-2 (8 MHz)
• 8086-1 (10 MHz)
• It consists of 29,000 transistors.

Master of Computer Applications

JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY,HYDERABAD
Master of Computer Applications

MCA 1st Year (I-Semester)

Mathematical Foundations of Computer Science
Computer Organization
Object Oriented Programming through C++
Probability and Statistics
Accounting and Financial Management

Practicals
IT Workshop
Object Oriented Programming Lab through C++
Computer Organization Lab

Master of Computer Application

The Master of Computer Application Program . The M.C.A. Department is bestowed with an experienced team of faculty. members with excellent academic records and proficiency. Excellent infrastructure, state-of-the-art computers with the latest advances in technology and comprehensive study material make the Department a class apart.  The M.C.A. Department helps in providing the I.T. and Computer Industry with world-class talent and creating some of the finest software professionals year after year. By providing concept-oriented subject knowledge through a high quality teaching that is supplemented with practical training, the Department aims to bring out some of the brightest minds into the world of  computers and technology. The success of the M.C.A. Department is attributed to its motivating and inspiring faculty members who handle subjects like Artificial Intelligence, Software Quality Management, Computer Networks, Mobile Computing, Distributed Computing and much more. The students gain high quality learning in several subjects. The department has laboratories fully equipped with state-of-the-art equipments. The department has got a department library consisting of text books, reference books, student project reports, conference proceedings, faculty development program materials etc. Faculty and the students of the department have got access to the department library. The department has got a technical association called MAESTROS APPS with activities through out the year to develop the leadership, organizational and technical skills of the students. Opportunities for students to participate in various forums, technical and non-technical. Opportunities for students to take up industry based projects. Opportunities for faculties to take up Quality Improvement Programs (QIP). High Placement Opportunities in well established organizations and MNCs.