LYYN » Australia

Dust

Fredrik — Wed, 09 Dec 2009 13:01:55 +0000

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Published courtesy by US Army

Indian temple in dust storm

RV parking in dust storm

Race dust

Dust bridge in Australia

Brisbane in red dust storm

Bikes and tent in dust storm

Dust storms can occur anywhere there is loose soil, little to no vegetation and strong winds. This combination is mostly found in the world’s deserts. In the Sahara, for example, sand dunes dominate and strong winds occur often. Without vegetation to hold it in place, sand and dust lift easily in the wind.

Another region with severe sand or dust storms is Central and Southwest Asia. There, soil is sand or sandy loess (in this case, fine, wind-blown clay). The desert plateaus of Afghanistan are major dust sources for the region. The surface soil, endlessly blown around by unrelenting winds, has been ground into a fine dust. This dust lifts easily and remains suspended in the air for a long time. Sand also lifts in the strong winds, but its effect is largely limited to the first 3-6 meters (10-20 feet) above the ground and the worst effects are limited to the first meter (2-3 feet).

Dust storms occur in strong storms with well-defined cold fronts, particularly dry storms. These storms have strong winds that create the problems. Dust and sand lift ahead of cold fronts as winds increase in tightening gradient. Oddly, the finest particles are not the first to lift; small sand particles of the “favored” size are moved on the surface first in a process called saltation. Behind cold fronts, even more dust and sand lifts as winds tend to be stronger behind the front than ahead of it.

There must be more going on than straight-line winds. First, the ground must be dry. Besides surface winds strong enough to move particles, there must also be upward vertical motion. Upward vertical speed is roughly one fifth of the surface speed. The vertical speed determines how much particulate matter lifts. The larger the particles, the stronger the required wind.

Visibility forecasting is difficult; restrictions depend on many variables. On the edges of blowing dust visibility is around ½ – 5 km(1/2-3 miles). Beyond that, visibility quickly returns to 3-8 km (2-5 miles). Visibility will remain at 5-10 km (4-6 miles) in dust haze for days after a dust storm.

Intense dust storms reduce visibility to near zero in and near source regions with visibility improving away from the source. Dust settles when winds drop below the speed necessary to carry the particles, but some level of dust haze persists nearly constantly in the summer.

Small particles restrict visibility more than large particles. In general, however, the worst visibility occurs within 5-6 meters (20 feet) of the surface. Above that, particles settle out into layers (by particle size) of progressively better visibility conditions. The largest particles are closest to the ground and settle out first. Slant range visibility is typically worse than straight-line visibility, and distortions, halos and coronas may also occur.

APAC Security Pty Ltd

Fredrik — Thu, 17 Sep 2009 14:09:26 +0000

APAC Security is a close LYYN partner and the main distributor of LYYN products in the APAC region. They manage the whole region for us, recruiting and supporting local dealers and partners.

APAC also performs customer projects where they develop customized video solutions with LYYN Inside™.

Main office:
9 / 32 Campbell Avenue
Cromer
NSW 2099
Australia

Contact: Carl Lundberg [mail]
Tel: +61 406 996 183

China office:

22F – C2, Shangmao Century Plaza,
No. 49 Zhongshan South Road,
Nanjing City,
Jiangsu Province,
210005,
China

Tel: +86 25 86893594

web site

LYYN and APAC Security signs Asia/Pacific distribution agreement

admin — Thu, 27 Sep 2007 11:24:53 +0000

LYYN and APAC Security has signed an Agreement for distribution of LYYN’s products in Asia/Pacific. The agreement specifically targets the market segment for security but also Sub Sea which among all includes commercial diving. With this partnership LYYN™ will be able to access the market via APAC’s existing sales channels.

“We released our first product, LYYN T38, in November last year. This has been well received by the market, especially within the submarine and security technology areas. Since then we have recruited over 20 resellers throughout the world, and several more are in the queue. To be able to support our markets in the best possible way LYYN will appoint regional distribution partners globally. We are extremely pleased to join forces with APAC to support the Asia/Pacific markets.“ says LYYN’s President Andreas Ekengren.

“I am very exited since LYYN’s products match our existing portfolio of security products” declares APAC’s MD Carl Lundberg. “In addition I enjoy working with entrepreneurs like the LYYN management. Andreas’ and his team’s ambitious targets suits us very well – we are committed to make this partnership successful”

About APAC Security

APAC’s main purpose is to provide the Asia/Pacific market with high quality security products like the LYYN V.E.T. technology. The majority of APAC’s business derives from government security. APAC’s principals can be found in UK, Sweden, USA and Singapore. APAC serves the Australian market directly while using a distribution network in the rest of the region.

For more information please contact MD Carl Lundberg on +61 406 996 183 or carl.lundberg@apacsecurity.com

Press release in PDF format

Three new resellers

admin — Mon, 05 Mar 2007 09:54:00 +0000

Advanced Marine, Singapore

Divex Asia Pacific, Australia

Deepwater Rental & Supply, USA

”For LYYN, this phase of rapid expansion is a milestone. With our new addition of resellers, we are well under way to reach a good market coverage. The addition of partners in Asia and Australia is critical for us, as is our local presence in the Gulf of Mexico. We’re focusing hard on supporting our resellers, as ’all business is local’. To us this indicates that we’re doing something right, and that the LYYN T38 is actually working well in offshore environments.

User feedback strongly indicates that LYYN T38 performs really well, increasing the productivity in sub sea tasks. This is especially true in close-range inspection work, where instead of aborting a dive due to lack of visibility (waiting for visibility to clear), a vessel can stay on site and complete a project.”

Andreas Ekengren, Managing Director LYYN AB

“Advanced Marine are pleased to represent LYYN in the Marine Offshore arena of ASEAN Nations especially their new T38 real time video enhancer. This product greatly improves colour video signals in a real time atmosphere allowing ROVs or Divers to get video documentation in silty or low visibility situations. We are excited by the response we are already getting from our customers.”

Jeff Bradford, Managing Director,
Advanced Marine Pte Ltd

“We believe the LYYN system will offer significant enhancements to the ability of both divers and ROV’s in the commercial and military arenas. The “”lyynification™” video enhancement will improve efficiency, reduce error and most significantly enhance the safety of the diver in low visibility conditions. The advantages to oilfield operations, search and rescue and military operations will be significant, and we look forward to offering the system to existing and new clients in these arenas.”

Doug Austin, Managing Director,
Divex Asia Pacific Pty Ltd

”This unique and specialized product fits immediately into our line of products. We were first introduced to the LYYN™ technology at the Underwater Intervention 2007, and the market response to the T38 has been great.

As we supply and service many of the sub sea contractors operating in the Gulf, the possibility to clear up bad visibility in real-time video is great. The Gulf is all about bad vis’.”

David DeCourt, President,
Deepwater Rental & Supply