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What is a Linear Motor?

A linear motor is-simply speaking-an electric motor that uses a linear force mechanism to generate the power needed for a said application. In contrast to a rotational electric motor (found in automobiles, appliances, and commonly-used electrical equipment), a linear motor generates its energy output through exclusively linear scientific principles; i.e. there is no torque or rotation to produce accelerated force through the electrical current magnetic field relationship. Linear motors are used for a variety of purposes, which include high velocity trains, military weaponry, spacecraft exploration, robotic technologies, medical advancement, and automated engineering systems whose job is to produce mass amounts of a specified product. There are two basic types of linear motors: low-acceleration and high-acceleration. Low-acceleration motors are typically used for applications in which endurance is favored over high bursts of electromechanical power or energy. These types of linear motors are engineered for Maglev trains, automated applications systems, etc. High-acceleration motors are the more common of the two, and produce higher velocity outputs for shorter amounts of time; such as used in firearms, military equipment, spacecraft propulsion, and the like. Low-acceleration linear motors are designed to accelerate an object up to a continuous stabile speed, while high-acceleration linear motors will accelerate an object up to a very high speed and then release the object. Typically, the low-acceleration linear motor will be engineered with one winding system on one side of the motor and magnets on the other side to create the electromagnetic repulsion necessary for successful application force; this is called linear synchronous design. The high-acceleration linear motor will generally be constructed of a three-phase winding on one side and a conductor plate on the other side of the motor to meet the intended engineering objective; this is called linear induction design. Linear motors offer a number of advantages in this ever-evolving technological world. Whether the high power application your company or organization requires necessitates a low- or high-accelerated lateral motor system, linear motors assure faster acceleration and higher velocities as well as higher success rates in automated accuracy, repeatability, and long-term reliability.

More doors open for graduates

More doors open for graduates

By STEFAN NAIDU
KUALA LUMPUR: The demand for open-source software in the ­country and the expertise required in this area is rising, according to the Multimedia Development Corp (MDeC) which spearheads the MSC Malaysia initiative.
Open-source software, said networking systems giant Sun Microsystems, is gaining popularity mainly because the advantages of user malleable programs are becoming more apparent.
Since the source code is ­accessible to users, a company could tweak open-source software to better meet its needs, compared to proprietary software which arguably has to be used as is.
In view of this increasing ­interest in open-source ­applications, MDeC and Sun have banded together to offer local university graduates the ­opportunity to master open-source skills.
Under the partnership, Sun will provide the graduates with industry-recognised technology training and certification tools, through MDeC’s network of institutions of higher learning.
The training will include ­teaching the students to master Java, a programming language developed by Sun Microsystems that has been in use since 1995.
In addition to that, they will learn about OpenSolaris, Sun’s open-source operating system, around which the vendor has built developer and user ­communities.
Also on the cards is to make the graduates experts in MySQL, a relational database management system that ­reportedly has more than 11 million installations worldwide.
“The students will gain ­relevant IT skills which will improve their employability, and the initiative will also help meet the local industry’s demand for competent IT professionals,” said MDeC chief executive Datuk Badlisham Ghazali.
He was speaking at a press conference in the capital last week to announce the ­partnership.
C.P. Loo, managing director of Sun Microsystems Malaysia, emphasised the importance of obtaining certification in open-source software.
“Our programmes are designed to enable IT ­professionals to better harness Sun’s leading open-source ­technologies,” he said, “as well as improve their communication and interaction skills.
The graduates will also be more productive once their ­technical and problem-solving skills are honed, Loo added.
Candidates who complete the course may be awarded a three-month apprenticeship at an MSC Malaysia-status company.
The MSC Malaysia initiative is aimed at developing the ­country’s knowledge-based economy, as well as boosting its information and communications technology industry.

Ocean "Dead Zones" Spreading Rapidly as Humans Pollute the Planet

(NaturalNews) The number of "dead zones" in coastal regions around the world continues to rapidly increase, according to a study conducted by researchers from the Virginia Institute of Marine Science and the University of Gothenberg, and published in the journal Science."It's not sort of a local or regional problem, which is how it was thought of in the past," researcher Robert Diaz said. "It is actually a global problem."Dead zones are areas where oxygen has become so depleted that little or no marine life is able to survive. They form when excessive plant nutrients, particularly nitrogen and phosphorus, run off from the coast and lead to an explosion of algae blooms. When this vastly increased biomass dies and sinks to the bottom, its decomposition leads to the proliferation of oxygen-consuming bacteria.In some cases, this may lead to increased crowding pressure in other parts of the ocean."Fish are the best at avoiding dead zones," Diaz says. "When the oxygen starts to decline, they're smart - they leave, they don't hang around. Crabs and shrimp are pretty good at getting away, too, as are lobsters."Many slower moving animals such as clams, worms and small crustaceans, however, simply die.In the current study, researchers found that the number of dead zones has steadily increased from 39 at the end of the 1960s through 63 at the end of the 1970s, 132 at the end of the 1980s and 301 at the end of the 1990s to the current number of 405. The total area consumed by dead zones now measures no less than 95,000 square miles.The major sources of the pollutants that produce dead zones are fertilizer runoff from industrial agriculture and nitrogen-based byproducts of fossil fuel use."Most of it is agricultural-based, but there is a lot of industrial nitrogen in there, too, if you consider electric generation," Diaz said.Dead zones now function as one of the primary stresses on marine biodiversity, along with overfishing and habitat loss.

Robbers drive off with victim's son in back seat

Robbers drive off with victim’s son in back seat
By WANI MUTHIAH

KLANG: The Foo family had a most frightening experience when two robbers drove off in their car with their son still in the back seat in Taman Berkeley here.
Their nightmare began yesterday morning when Kendrick Foo, 43, returned home after dropping off his wife at the Meru wet market where she runs a stall selling noodles and soya bean by-products.
Six-year-old Foo Koo Ping was sleeping in the back seat when two men grabbed Foo, pushed him to the ground and took off in his Proton Wira.
He surrendered his wallet and threw himself in front of the car, screaming that his son was asleep in the back seat.
“I believe that they too panicked and sped off,” said Foo.
“He is our only child and we cannot imagine anything terrible happening to him,” said Foo, an employee at the IT department of a private hospital in Klang.
The robbers abandoned his car in front of Chemistry Department pensioner Zamedin Hasar’s house in Taman Desaria, near Sunway.
Zamedin, 65, said he was on his way to his neighbourhood surau at 6.10am when he noticed a maroon Wira parked outside his house with the engine running.
When he returned 30 minutes later, the car was still there.
Zamedin said he looked into the car and saw the boy asleep in the back seat.
“The feeling of relief after being told that our son was all right is unexplainable,” said Foo, adding that he met Zamedin at the Sungai Way police station with his son and car.
Koo Ping, when asked what happened, coolly replied: “Two bad men drove my daddy’s car and I was very frightened.”
Meanwhile, Klang OCPD Asst Comm Mohamad Mat Yusop said the police received their first report at 5.15am. The two robbers are still at large.
On a another matter, City police said there was no such case of an eight-year-old girl being kidnapped from Taman Maluri in a Nissan Sentra that was circulated by SMS a few days ago.

Video games are good for children - EU report

Children who spend hours every day on their Playstation or Xbox video consoles may not be rotting their brains, as many parents fear. A report from the European parliament concluded yesterday that computer games are good for children and teach them essential life skills.

Contrary to fears about the violent reputation of some games, there is no firm proof that playing them has an automatic negative impact on children's behaviour, for example by causing aggression, said the report from the committee on the internal market and consumer protection.

Instead, "video games can stimulate learning of facts and skills such as strategic thinking, creativity, cooperation and innovative thinking, which are important skills in the information society."

Toine Manders, the Dutch liberal MEP who drafted the report, said: "Video games are in most cases not dangerous. We heard evidence from experts on computer games and psychologists from France, the US, Germany and the Netherlands and they told us that video games have a positive contribution to make to the education of minors."

The study called for schools across Europe to consider using games for educational purposes and urged parents to take a greater interest in them.

"Schools should pay attention to video games and inform children and parents about benefits and disadvantages that video games can have," the report said.

The findings are likely to surprise supporters of tougher regulation of computer games, some of which have been blamed for influencing violent crime among children.

Last year the mother of Stefan Pakeerah, a 14-year-old boy from Leicester who was murdered by a 17-year old wielding a knife and a claw hammer, claimed her son's killer was influenced by the computer game Manhunt in which players earn points for stealth killings.

Keith Vaz, who chairs the Commons home affairs select committee, has called for tighter controls and described Grand Theft Auto, a popular "shoot 'em up" game, as "violent and nasty".

The European parliament conceded that "violence in video games can in certain situations stimulate violent behaviour," but said there was no need for Europe-wide legislation. It called for a Europe-wide approach to prevent the sale to children of games intended for adults and urged the introduction of stricter identity checks at the point of sale and a wider application of the age-rating system that currently applies to computer games in many European countries.

Total revenues from the video gaming sector amounted to more than €7bn (£6.25bn) last year, the report said and in the UK, video games outsold music and other video products for the first time last year, according to separate research.

The growing market for online games needed to be better controlled, the MEPs said, and online games should include a red button on the screen which children or parents could click to disable the game.

Manders said the button could also be linked to the administrators of the Pan-European Game Information age rating system, so that when a game player presses it, PEGI is informed and can investigate potentially disturbing games that are available through the internet.