Saturday 14 July 2012

Rail Technology 2012




  1. Learn about the latest theory and practise in LCM and HFO
  2. Share your knowledge
  3. Discuss latest developments, technologies and policies
  4. Build new and extend existing business relationships
  5. Synergise to find inspirational solutions and new ideas
  6. Determine pros & cons and best practises
  7. Become inspired by perceptions and point of views of other stakeholders
  8. Join the presentations from international speakers
  9. Meet/network with international colleagues

Are you involved in Life Cycle Management (LCM) and/or High Frequency Operations (HFO

Railroaded (into a Fast-Train Technology) Trap


                                                                                    
The professional dreams of a team of locomotive designers and rail systems engineers sped along steel tracks through the countryside of northeastern China



The year was 2003, and high-speed track testing was under way between the cities of Shenyang and Qinhuangdao for the China Star bullet train, the pride of an engineering team assigned to jump-start the nation's all-new, high-speed railroad.

Technicians led by the project's chief engineer Liu Youmei had developed the China Star and its track components from scratch as part of a 130 million yuan, Ministry of Railways effort to upgrade the nation's vast railroad network, promoted by the then minister, Fu Zhihuan.
The ministry hoped the China Star, with a top speed of 270 kilometers per hour, would help state-owned businesses from train manufacturers to track construction companies carve out a market niche and successfully compete against the world's largest bullet train manufacturers.

Moreover, Liu's team wanted to prove that Chinese engineers and craftsmen had what it takes to build world-class fast trains independently, from top to bottom, without the foreign-based multinationals that dominate the global market.

But the team never really got a chance to prove itself, and the China Star tests were essentially for naught. A few months after the train's experimental run, the railways ministry slammed the brakes on indigenous high-speed rail technology research and radically changed the course of national railroad development.

The Train Technology 2012

Train Technology

New Helicopter Sim Is Technological

(Ryan Aerospace’s) the new dual-control Helicrew helicopter cockpit simulator system is part of a growing segment of technological,but not too technological,training devices. The new technology system consists of a base platform containing seats, cyclic sticks and pedals. The Instructors can add a series of interchangeable modules such as instrument panels, avionics, aircraft-specific collective levers and overhead panels. A variety of screens can be used to give an outside view, but there is no cockpit enclosure or motion system. For an added degree of realism and an additional cost, the simulator can be equipped with seat shakers or vibration devices. To provide a halfway house between the most basic procedural trainers and high-level simulators, with trainees able to undertake routines such as instrument scans, GPS exercises and multifunction display operation.

IRobot Technology

IRobot designs and builds robots that make a difference. The company’s home robots help people find smarter ways to clean, and its defense & security robots help protect those in harm’s way. iRobot’s consumer and military robots feature iRobot Aware® robot intelligence systems, proprietary technology incorporating advanced concepts in navigation, mobility, manipulation and artificial intelligence

IEEE 2012

Welcome to TePRA 2012 The 4th Annual IEEE International Conference on Technologies for Practical Robot Applications (TePRA) will be held in the Greater Boston Area, Massachusetts, USA on April 23-24, 2012. TePRA is aimed at catalyzing the development of enabling technologies and encouraging their adoption by robot designers. With an emphasis on practical applications and industrial participation, TePRA provides researchers, innovators, entrepreneurs and robotics professionals with a forum balanced between an academic conference and an exhibition, while presentations are selected through IEEE's rigorous peer-review process.

Robot Technology 2012 vedio

Robot

Technology Roll Laptop

ROLL Laptop

Wednesday 11 July 2012

atx power supply pion voltage diagram

300w atx power supply schmetic diagram

Rim black berry 7320

Research in Motion's (RIM) early attempts at mating its popular wireless email devices/PDA with a cell phone didn't turn out as well as the company had hoped.But the black barry 7320,the combine GSm/GPRS world phone.

Easy UPS Solution for IT Systems

Centralized VS Distributed SYSTEM

  1. All equioment ( servers,switchs,routers) in the area protected
  2. Single ups system easy to manage & control
  3. easy to add loads to protected system
  4. easy to add more battery capicity to whole system if needed
  5. easy to implement ups redundancy

  • easy to protect indivisual IT equipment
  • High flexibilty
  • easy to expend with a addtional units
  • plug & play installation
  • swap services possible

Tuesday 10 July 2012

Password Aging ploicies in linux

Gruop administration in linux

# groupadd groupname

#groupdel groupname  to delete the group

#groupmod -n newname oldname  to the change the old group name

User Add in linux

# useradd muddassar
then press enter key

this user is created in home directory

now for passwor

#passwd muddassar
then press enter key and type password

How to re size the picture using mspaint


How to re size the picture using mspaint
  •    Click on start
  •   Click on run and write mspaint and press ok
  • Click on file and click on open and select the picture.
  •  Press ctrl w and give the value 40% horizontal and 40% vertical and press ok 
  •  Press ctrl s and save the file on specific location.
  • Right click on the file where you save the picture in jpeg format and click on properties to check the size of file.
In this way your picture is re sized or decreased in size

Keyboard


Keyboard
The keyboard used to type the text & numbers into a word processor, text editor or any other programs.
Keyboard types:

One factor determining the size of a keyboard is the presence of duplicate keys, such as a separate numeric keyboard, for convenience. Keyboard with few keys called a keypad. There is another factor determining the size of a keyboard is the size & spacing of the keys.

Standard

The Standard (full-travel) alphanumeric keyboards have keys, that are on (03) quarter inch centers “0.750 inches, 19.05 mm”,& have a key travel of at least 0.150 inches “3.81 mm”. The Desktop computer keyboards, such as the 101-key (US) traditional keyboards or the 104-key (keyboards), include alphabetic characters, punctuation symbols, numbers and a variety of function keys.

Laptop-size

The keyboards on laptops & notebook computers are usually having a shorter travel distance for the keystroke and a reduced set of keys. May be they not have a numerical keypad & the function keys or and may be placed in locations that differ from their placement on a standard, full sized keyboard.

Fold-able

Fold-able is also called flexible keyboards are made of soft plastic or silicone which can be rolled or folded on itself for travel. When in use, this keyboard can conform to uneven surfaces and  are more resistant to liquids than standard keyboards. These can also be connected to portable devices and smart phones. Some models can be fully immersed in water, making them popular in hospitals and laboratories, as they can be disinfected.

circut diagram of keyboard


wireless mouse circut diagram


wireless air mouse technoloy diagram


wireless mouse diagram


how optic mouse work


old mouse diagram


Monday 9 July 2012

power transmission towers from 500kv to 7.13kv


500 kv transmission line 1


winlog interface


66 kv transmission line via scada


Scada in factory to control the plant


Scada programing interface


Units used in computers


Unit                                       Equivalent (bytes)

1 kilo byte (KB)                       1,024
1 mega byte (MB)                    1,048,576
1 giga byte (GB)                       1,073,741,824
1 tera byte (TB)                        1,099,511,627,776
1 peta byte  (PB)                       1,125,899,906,842,624

Hard Disk Drive Components


A typical hard disk drive has two electric motors, disk motor that spins the disks & an actuator (motor) that positions the read/write head assembly across the spinning disks.

The disk motor has an external (rotor) attached to the disks; the stator windings are fixed in place.
Opposite the actuator at the end of the head, support arm is the read-write head near center in photo, a thin (printed-circuit) cables connect the read-write heads to amplifier electronics mounted at the pivot of the actuator. A flexible somewhat U-shaped, ribbon cable, seen edge-on below and to the left of the actuator arm continues the connection to the controller board on the opposite side.

Head support arm is very light, but also stiff; in modern drives, acceleration at the head reaches 550g
The silver-colored structure at the upper left of the first image is the top plate of the actuator, a permanent-magnet and moving coil motor that swings the heads to the desired position (it is shown removed in the second image). The plate supports a squat neodymium-iron-boron (NIB) high-flux magnet.

Beneath this plate is the moving coil, often referred to as the voice coil by analogy to the coil in loudspeakers, which is attached to the actuator hub, and beneath that is a second NIB magnet, mounted on the bottom plate of the motor some drives only have one magnet.