JET ENGINE:

                            Jet Engineconsist of an air inlet, an air compressor, a combustion chamber, a gas turbine (that drives the air compressor) and a nozzle. The air is compressed into the chamber, heated and expanded by the fuel combustion and then allowed to expand out through the turbine into the nozzle where it is accelerated to high speed to provide propulsion.Turbojets are quite inefficient if flown below about Mach 2and very noisy. Most modern aircraft use turbofans instead for economic reasons. Turbojets are still very common in medium range cruise missiles, due to their high exhaust speed, low frontal area and relative simplicity.

 Propulsion

Fig  showing balloon with no escape path for the air inside.

 

Propulsion is the net force that results from unequal pressures.  Gas (air) under pressure in a sealed container exerts equal pressure on all surfaces of the container; therefore, all the forces are balanced and there are no forces to make the container move.

 

If there is a hole in the container, gas cannot push against that hole and thus the gas escapes.  While the air is escaping and there is still pressure inside the container, the side of the container opposite the hole has pressure against it.  Therefore, the net pressures are not balanced and there is a net force available to move the container.  This force is called thrust.

               The simplest example of the propulsion principle is an inflated balloon (container) where the stem is not closed off.  The pressure of the air inside the balloon exerts forces everywhere inside the balloon.  For every force, there is an opposite force, on the other side of the balloon, except on the surface of the balloon opposite the stem.  This surface has no opposing force since air is escaping out the stem.  This results in a net force that propels the balloon away from the stem.  The balloon is propelled by the air pushing on the front of the balloon.

JET ENGINE:

 

DEFINATION:

An engine that burns fuel and uses the expanding exhaust gases to turn a turbine and/or produce thrust.

 

TYPES OF JET ENGINE:

a.Turbojet

          b.Turbofan

          c.Turboshaft

          d. Ramjet

            e. Scramjet

 

ELECTROMAGANETIC CLUCH SYSTEM

                                 Electromagnet is one of the worlds most technologically sophisticated

 industries & is often viewed as a research test bed to stimulate innovation in orears of interest to the manufacturing / automotive industry.

Electromagnet Clutch system is the fore front of modern technology & required a substantial investment of knowledge.

                         Now a days , there is lot of competition in the market. So there is need of developing a new method or process for effective manufacturing .That process or methods should fulfill the requirement about accuracy productivity etc.

                                 It is necessary to reduce the total machine time & reduces its weight .There are various ways by which the total machining time can be effectively minimized .There are various time consuming steps or sab process .which can be minimize by various methods .

In mass production & at machine or at working time there is time criteria is very important within small time limit a single unit job has to be completed for minimizing the job time & complicated circuit or assembly the hunting of the job should minimum. So that energy will be consumed & labour time considerably saved .

Electromagnetic Clutch system i.c. it is partially or wholly divided in to two parts .means electromagnetic operation & Clutch ing system .Both operation are depends upon each other operation.

We have to basically introduce the attachment of these two system is used for stop the rotory motion of rotory motion or partially providing one shaft to another shaft. From a minimizing the handling time, or we introduce perforation of different work for that Electromagnetic brake system is defined .whole system is totally based on Raradays laws of electromagnet.

Firstly we introduce about electromagnet. Electromagnets name implies that “electro and magnet” means there is electrical energy & mechanical energy combination. It has his own characteristic due to which we have to adopt it. In the field of technology every day a new technique is ruled. It has some pros & cons. Today is the world of “ New technology “ which we have to take in practice electromagnetic principle is one of the oreas in the development. Electromagnet at this time is most widely used in robotics.

In the past the focus in the field of mechanical has been on precision seed & controllability more recently there has been on increasing interest in adoptive learning & anotnmy.

This has led to a new set of goods for this new kind of our project of course, one of the important goods remains the development of usual artifacts but it is no longer the major one more important is on increased understanding at the principles underlying intelligent behavious. A typical starting point is molding of some aspects of systems.

BlackBerry Z30 5-inch display, BB10.2 OS launched Rs. 39,990 in India

• BlackBerry has launched the Z30 for the Indian market at Rs. 39,990.BlackBerry has included 2GB of RAM onboard the Z30, apart from 16GB of inbuilt storage, which can be further expanded via microSD card (up to 64GB). The BlackBerry Z30 sports an 8-megapixel rear camera and a 2-megapixel front-facing camera.
• The new phablet runs BlackBerry 10 OS version 10.2, which includes refinements and new features when compared to the BlackBerry Z10 that was launched earlier this year. The Z30 includes a 2880mAh battery, which the company claims can deliver up to 25 hours of talktime - there is no word on standby time.

It is powered by a 1.7GHz dual-core Qualcomm Snapdragon S4 processor with Adreno 320 GPU.

Blackberry z30 Specification :

• 5-inch Super AMOLED display with 720x1280 pixels resolution
• 1.7GHz dual-core Qualcomm Snapdragon processor with Adreno 320
• 2GB of RAM
• 16GB of inbuilt storage, expandable up to 64GB via microSD card
• BlackBerry 10 OS version 10.2
• 8-megapixel rear camera
• 2-megapixel front-facing camera
• 2880mAh

Blackberry's Smartphone Z30 may release in India on October 24

                               The BlackBerry Z30 is expected to launch with a 5-inch display, a 1.7GHz dual-core processor, 8MP camera, 2,880 mAh battery, 16GB internal storage, 2GB RAM and run BlackBerry OS 10.2. 

1. Retina display 
2. Scratch proof screen 
3. High processor 
4. Batter battery life 
5. Camera should be updated to 13 or 15 mp
6.hdmi+ charger should me same in the port. 
We’ll need to spend a bit more time with the phone before being able to comment on things like the claimed 25 hour battery life, but the 2880 mAh battery certainly gives the phone a solid feeling – officially it weight 170 grams.
The smartphone runs BlackBerry 10 OS version 10.2 and is a full-touch smartphone. It has the largest battery yet on a BlackBerry smartphone. 
 The Blackberry Z30 has a 5-inch Super AMOLED display and a 1.7 GHz processor with quad-core graphics.

Blackberry announces festival offer on smartphone Q5,Q10, and Z10

                   Blackberry 10 customer for festival offer in INDIA on smartphone Q5,Q10 and z10      Blackberry ltd.on Tuesday announced a fesitival offer for  BlackBerry Enterprise Service 10 (BES10) customers.

customers can now purchase BlackBerry Q10 smartphone at Rs 39,990, BackBerry Z10 smartphone at Rs 29,000 and BlackBerry Q5 smartphone at Rs 22,699.

The offer is only available to BlackBerry’s existing BES10 customers in India.

"Sunil Lalvani- Managing Director India for BlackBerry said, "As part of our on-going festive season promotions, we are introducing an exclusive offer for our valued BES10 enterprise customers. The uptake of our BES10 offering as well as BlackBerry 10 based smartphones among Indian enterprises has been encouraging and we believe this offer will further enhance our reach in the enterprise mobility market."

' In order to avail the exclusive festive offer for BES 10 customers, users can log in at http://blackberry.infibeam.com/ with their official email IDs. The offer is valid till October 30, 2013.

Sony Xperia C Slated For October 2013 India Release

SONY XPERIA C SPECIFICATION 

Features:- 

• 1.2 GHz MTK6589 Quad Core Processor
• Android v4.2.2 (Jelly Bean) OS
• 8 MP Primary Camera
• 0.3 MP Secondary Camera
• 5-inch TFT Capacitive Touchscreen
• Expandable Storage Capacity of 32 GB
• FM Radio
• Dual SIM (GSM + GSM)
• Wi-Fi Enabled

The World Better

A massive 5 inch TFT capacitive touchscreen that is quarter HD ensures that all that you view on it seems better, bigger, sharper and more beautiful. With a crisp finish and a brightness that you cannot contend with, the smartphone ensures that your eye sees only the best.

Capturing Camera 

The Xperia C comes with an 8 megapixel camera that incorporates the Exmor R technology that stems from Sony’s time-proven record with professional cameras. Helping you take amazing pictures even in low-light conditions, the camera employs HDR, aided by a pulsed LED, that captures at different exposure levels and layers them, ensuring that the subject looks crisp and bright.

A 0.3 megapixel secondary camera comes in handy when you want to take that perfect selfie or high-quality video chats with a loved one. What’s more, the phone is also capable of capturing full HD videos as well.

Connectivity

The Xperia C can also be connected with your large screen TV to watch mind-blowing content like it should be. All you need is Wi-Fi connectivity on the TV and you can throw content onto it using Bluetooth on your phone - the best way to connect to other devices without the hassle of wires.

Processing Capacity

A 1.2 GHz MTK6589 Quad Core processor backed by 1 GB RAM gives you performance and speed that you could easily get used to. Lag is a thing of the past as you blaze through apps, the web, streaming live videos and multitasking is but a piece of cake that will not frustrate you with slow responses. Aided and abetted by the Android v4.2.2 (Jelly Bean) operating system that is both intuitive and smooth while being simple and easy to use as well, the phone packs quite a punch.

4 GB of internal storage can be extended upto 32 GB and the phone packs a 2330 mAh battery as well. A feature that comes in very handy to those who don’t get the time to charge their phone batteries all that often, the Battery STAMINA mode that comes with the dual GSM SIM Sony Xperia C ensures that unnecessary battery drainage is curbed by cutting off display when not in use and disabling Wi-Fi and data traffic while still allowing notifications to show up on the screen, significantly improving battery life. You can also customize what kind of notifications you want to show up.

Digital Technology : Blackberry in $4.7bn takeover deal with Fairfax

Digital Technology : Blackberry in $4.7bn takeover deal with Fairfax:                         Tech pioneer Blackberry made a last roll of the dice and to agreed a probable $4.7 billion buyout by a consortium p...

Blackberry in $4.7bn takeover deal with Fairfax

                        Tech pioneer Blackberry made a last roll of the dice and to agreed a probable $4.7 billion buyout by a consortium planning to take the struggling smartphone maker private.
The Canadian billionaire (Prem wasta ) behind a $4.7bn (£2.9bn) offer to take the ailing smartphone maker BlackBerry private has insisted he will complete the deal.Mr Watsa insisted on Wednesday he would complete the deal, in spite of clauses that mean Fairfax will face no penalty if it walks away, and receive $150m if BlackBerry backs out.

                        He said: “We've got a track record of 28 years of completing what we've done. We've never re-negotiated.

“We thought long and hard before we offered $9 dollars a share and we're not in the business of offering a number and at the last minute changing the figure. Over 28 years our reputation is stellar on that front. We just don't do that.

”Struggling smartphone maker Blackberry has agreed in principle to be bought by a consortium led by Fairfax Financial for $4.7bn (£3bn).

Blackberry was one of best smart phone tech but Android and Apple they coincidentally record announced sales of latest iphone 5c and 5s on 23rd sept 2013.

Blackberry stock was down six percent to $8.23 before trading was halted just prire to its announcement .its shares bounced back in afternoom trading to close at $9.08 but farbelow stocks high  history .

While Blackberry helped create a culture of mobile user glued to smartphones,many have since movedto iphones ,or samsung's galexy ranges ..

Blackberry's financial problems came to a head this year following disappointing sales of its new Z10 model smartphone.

Released in January - after many delays - the phone has failed to enthuse consumers.