Archive for March, 2010

CERN LHC Proton Beam Collision Official Press Release

31 March 2010

LHC research programme gets underway

Geneva, 30 March 2010. Beams collided at 7 TeV in the LHC at 13:06 CEST, marking the start of the LHC research programme. Particle physicists around the world are looking forward to a potentially rich harvest of new physics as the LHC begins its first long run at an energy three and a half times higher than previously achieved at a particle accelerator.

“It’s a great day to be a particle physicist,” said CERN1 Director General Rolf Heuer. “A lot of people have waited a long time for this moment, but their patience and dedication is starting to pay dividends.”

“With these record-shattering collision energies, the LHC experiments are propelled into a vast region to explore, and the hunt begins for dark matter, new forces, new dimensions and the Higgs boson,” said ATLAS collaboration spokesperson, Fabiola Gianotti. “The fact that the experiments have published papers already on the basis of last year’s data bodes very well for this first physics run.”

“We’ve all been impressed with the way the LHC has performed so far,” said Guido Tonelli, spokesperson of the CMS experiment, “and it’s particularly gratifying to see how well our particle detectors are working while our physics teams worldwide are already analysing data. We’ll address soon some of the major puzzles of modern physics like the origin of mass, the grand unification of forces and the presence of abundant dark matter in the universe. I expect very exciting times in front of us.”

“This is the moment we have been waiting and preparing for”, said ALICE spokesperson Jürgen Schukraft. “We’re very much looking forward to the results from proton collisions, and later this year from lead-ion collisions, to give us new insights into the nature of the strong interaction and the evolution of matter in the early Universe.”

“LHCb is ready for physics,” said the experiment’s spokesperson Andrei Golutvin, “we have a great research programme ahead of us exploring the nature of matter-antimatter asymmetry more profoundly than has ever been done before.”

CERN will run the LHC for 18-24 months with the objective of delivering enough data to the experiments to make significant advances across a wide range of physics channels. As soon as they have “re-discovered” the known Standard Model particles, a necessary precursor to looking for new physics, the LHC experiments will start the systematic search for the Higgs boson. With the amount of data expected, called one inverse femtobarn by physicists, the combined analysis of ATLAS and CMS will be able to explore a wide mass range, and there’s even a chance of discovery if the Higgs has a mass near 160 GeV. If it’s much lighter or very heavy, it will be harder to find in this first LHC run.

For supersymmetry, ATLAS and CMS will each have enough data to double today’s sensitivity to certain new discoveries. Experiments today are sensitive to some supersymmetric particles with masses up to 400 GeV. An inverse femtobarn at the LHC pushes the discovery range up to 800 GeV.

“The LHC has a real chance over the next two years of discovering supersymmetric particles,” explained Heuer, “and possibly giving insights into the composition of about a quarter of the Universe.”

Even at the more exotic end of the LHC’s potential discovery spectrum, this LHC run will extend the current reach by a factor of two. LHC experiments will be sensitive to new massive particles indicating the presence of extra dimensions up to masses of 2 TeV, where today’s reach is around 1 TeV.

“Over 2000 graduate students are eagerly awaiting data from the LHC experiments,” said Heuer. “They’re a privileged bunch, set to produce the first theses at the new high-energy frontier.”

Following this run, the LHC will shutdown for routine maintenance, and to complete the repairs and consolidation work needed to reach the LHC’s design energy of 14 TeV following the incident of 19 September 2008. Traditionally, CERN has operated its accelerators on an annual cycle, running for seven to eight months with a four to five month shutdown each year. Being a cryogenic machine operating at very low temperature, the LHC takes about a month to bring up to room temperature and another month to cool down. A four-month shutdown as part of an annual cycle no longer makes sense for such a machine, so CERN has decided to move to a longer cycle with longer periods of operation accompanied by longer shutdown periods when needed.

“Two years of continuous running is a tall order both for the LHC operators and the experiments, but it will be well worth the effort,” said Heuer. “By starting with a long run and concentrating preparations for 14 TeV collisions into a single shutdown, we’re increasing the overall running time over the next three years, making up for lost time and giving the experiments the chance to make their mark.”

CERN LHC 7TeV Proton Beam Collided!

31 March 2010

CERN LHC has just successfully collided proton beams at 7TeV! Anxious to know what data they have gathered and answer to early Universe and the Big Bang Theory!

SOA – Agile Approach

30 March 2010

The agile strategy

The challenge remains to find an acceptable balance between incorporating service-oriented design principles into business analysis environments without having to wait before integrating Web services technologies into technical environments. For many organizations it is therefore useful to view these two approaches as extremes and to find a suitable middle ground.

This is possible by defining a new process that allows for the business-level analysis to occur concurrently with service design and development. Also known as the meet-in-the-middle approach, the agile strategy is more complex than the previous two simply because it needs to fulfill two opposing sets of requirements.

Process

The process steps shown in figure below demonstrate an example of how an agile strategy can be used to reach the respective goals of the top-down and bottom-up approaches.

Figure A sample agile strategy process.

Step 1: Begin the top-down analysis, focusing first on key parts of the ontology and related business entities

The standard top-down analysis begins but with a narrower focus. The parts of the business models directly related to the business logic being automated receive immediate priority.

Step 2: When the top-down analysis has sufficiently progressed, perform service-oriented analysis

While Step 1 is still in progress, this step initiates a service-oriented analysis phase. Depending on the magnitude of analysis required to complete Step 1, it is advisable to give that step a good head start. The further along it progresses, the more service designs will benefit.

After the top-down analysis has sufficiently progressed, model business services to best represent the business model with whatever analysis results are available. This is a key decision point in this process. It may require an educated judgment call to determine whether the on-going top-down analysis is sufficiently mature to proceed with the creation of business service models. This consideration must then be weighed against the importance and urgency of pending project requirements.

Step 3: Perform service-oriented design

The chosen service layers are defined, and individual services are designed as part of a service-oriented design process.

Steps 4, 5, and 6: Develop, test, and deploy the services

Develop the services and submit them to the standard testing and deployment procedures.

Step 7: As the top-down analysis continues to progress, revisit business services

Perform periodic reviews of all business services to compare their design against the current state of the business models. Make a note of discrepancies and schedule a redesign for those services most out of alignment. This typically will require an extension to an existing service for it to better provide the full range of required capabilities. When redesigned, a service will need to again undergo standard development, testing, and deployment steps.

To preserve the integrity of services produced by this approach, the concept of immutable service contracts needs to be strictly enforced. After a contract is published, it cannot be altered. Unless revisions to services result in extensions that impose no restrictions on an existing contract (such as the addition of new operations to a WSDL definition), Step 7 of this process likely will result in the need to publish new contract versions and the requirement for a version management system.

Pros and cons

This strategy takes the best of both worlds (Top-down and Bottom-up) and combines it into an approach for realizing SOA that meets immediate requirements without jeopardizing the integrity of an organization’s business model and the service-oriented qualities of the architecture.

While it fulfills both short and long-term needs, the net result of employing this strategy is increased effort associated with the delivery of every service. The fact that services may need to be revisited, redesigned, redeveloped, and redeployed will add up proportionally to the amount of services subjected to this re-tasking step.

Additionally, this approach imposes maintenance tasks that are required to ensure that existing services are actually kept in alignment with revised business models. Even with a maintenance process in place, services still run the risk of misalignment with a constantly changing business model.

CERN’s Large Hadron Collider breaks own power record

30 March 2010

cern_lhc (580 x 378)

Whether or not you believe that CERN’s Large Hadron Collider (LHC) will potentially answer the mysteries of the universe or be a harbinger of doom for our little blue planet, you have to admit that the world’s largest particle collider takes a lot of juice to operate. In fact, it takes a huge amount of power to get those photon beams up to near light speed and spin around the 17 mile tunnel near Geneva, Switzerland.  A record breaking kind of power.

This past Friday, the LHC was successful in breaking a previously held record for being the most powerful atom smasher in the world.  The recent ramp-up test, which only ran photons through the twin super-chilled electromagnetic tunnels, without any collisions, reached 3.5 Teraelectronvolts (TeV). This feat not only beats the LHC’s previous record of 1.18 TeV, a record that was set back in late November of last year, but the LHC has now smashed that record by a factor of three.

But that isn’t all this collider can do. After the LHC performs a series of collision experiments over the next 18 – 24 months, the system will be refitted so that the device could potentially handle photon beam runs at 7 TeV, more than doubling the current power.

Read more at PhysOrg, found via DVICE

UDDI: The Green, White and Yellow!

22 March 2010

Unlike WSDL and SOAP which are mandatory for Web services, registration of Web services instances in UDDI registries is optional and now falls with the WS-I Basic Profile 1.1.

See:

http://www.ws-i.org/Profiles/BasicProfile-1.1.html#discovery

UDDI provides programmatic interfaces into service registry repositories. This enables us to build programs and services capable of issuing dynamic discovery queries. The result is an automated process called runtime discovery.

See:

http://www.soaspecs.com/uddi.php

Thus, not to worry too much into the intricacies of UDDI as most ESB solution does provide mechanisms and toolset for service registry, discovery and invocation.

Hanging On to My Dream for iPhone 4G this June!

21 March 2010

4G iPhone: Multitasking, gestures galore, new maps, cloud iTunes

Jan. 19, 2010 (4:46 pm) By: Christian Zibreg

Article teaser (4G iPhone mockup, front - Credit: Designed by  Item)

Thanks to a new iPhone OS 4.0, the fourth-gen iPhone might multitask, run cutting-edge maps, and overlay useful information about nearby buildings on top of live video. You might be able to interact with it using a bunch of new multitouch gestures, stream your media off the cloud, and more.

New pieces of information regarding the iPhone OS 4.0 that are arriving on a daily basis in the run-up to Apple’s January 27 event help paint a better picture of the fourth-generation iPhone, simply regarded to as 4G iPhone. We’ve written quite a lot thus far about its rumored hardware features, ranging from new sensors like RDIF to front-facing camera for videoconferencing to speedy custom chips.

Beyond the hardware, though, the biggest surprises are said to be in the new underlying software and online services. An updated iPhone OS 4.0 software is the cornerstone of the next iPhone and its powerful hardware even though the software should run on the existing iPhone 3G and 3GS devices as well. A tipster in the know told Boy Genius Report that the iPhone OS 4.0 will

put Apple ahead in the smartphone market because it will make them more like full-fledged computers more than any other phone to date.

iPhone OS 4.0 (Settings-General-About)

The same source said that multitouch gestures will be system-wide and used much more extensively than in the current 3.x version that only employs pinch zoom and swipe gestures in the Safari and Photos apps. Apple has also found “a few new ways,” a source said, to multitask apps. iPhone OS 3.x allows only one running app at a time and doesn’t allow third-party apps to multitask arguing that background processes drain the battery. Finally, a source made mention of “brand new syncing ability for the contacts and calendar apps” (perhaps syncing with third-party services like Google, not just with Apple’s $99 a year MobileMe) and UI changes that should simplify navigation.

On the service level, though, Apple is said to be breaking away from its dependency on Google by developing their own replacement services. More precisely, 4G iPhone could run cutting-edge maps called iGuide featuring more detailed overlays and live information, courtesy of Apple’s quiet acquisition of a mapping startup Placebase last July.

Various augmented-reality features also come in mind, such as the ability to detect nearby buildings and other points of interest on images and videos. Finally, as Geek reported earlier today, cloud iTunes might also allow 4G iPhone to stream your entire personal music and video library on demand, off the cloud.

iPhone OS 4.0 is expected to power not only a future iPhone model, but a rumored tablet as well. Apple invited the press to its January 27 media event at the Yerba Buena Center for the Arts in San Francisco to “see its latest creation.” Big media agrees that Apple will unveil iPhone OS 4.0, 4G iPhone, and a tablet at the event. Other items on the agenda could include multitouch iLife and iWork suites, Core i5 MacBooks, and more.

Article teaser (4G iPhone mockup, back - Credit: Designed by  Item)

Meanwhile, a French-language site Nowhereelse.fr has published (original in French, Google translation) an interesting mockup visualizing 4G iPhone rumors. Based on a cool rendition by an agency called Designed By Item that depicts a unibody-created 4G iPhone, the mockup lists key rumored featured with an estimated probability of ending up in the actual product:

Check out the below composition (click for the full-size version) and let us know what you think about the next iPhone and its rumored features in the comment section.

4G iPhone - (visual rumor roundup)

Napalm Death

11 March 2010

Listening to Napalm Death is so much better than Osim massagers. Gives me instant stress relieve! Nice…

EHR Viewer Standard!

10 March 2010

I was approached by CLEO to define standards required for a web-based EHR viewer 1st thing in the morning before I get the chance to settle at my desk! What a silly question! How hard can it be, its either to support JSP and Servlets for Orion or .NET framework for dbMotion. The tricky parts from EMR is:
1. How to do a context switching from the EMR to the EHR via SAML and
2. Ways to launch EHR web viewer from EMR
These have to come from CLEO’s EMR vendor to propose.