urface warfare is in the news as navies tackle pirates off the Somali coast. The impact of piracy reflects the importance of sea lanes to a global economy, and navies are reequipping to deal with high- and low-level threats. One result is the emergence of a variety of antiship missiles. DTI has covered Chinese, Russian and Indian developments, but the rest of the world is also responding to changing threats.
At the U.S. Navy League exhibition in Washington this month, Raytheon Missile Systems will unveil an upgrade to the BGM/UGM-109E Tomahawk Block IV land-attack cruise missile that will make it a multirole weapon capable of hitting moving ships. The package has four elements: An active electronically scanned array, millimeter-wave seeker provides target acquisition and homing; a passive electronic surveillance system is for long-range acquisition and identification; the 1,000-lb. blast-fragmentation warhead is replaced by a shaped charge; and the two-way data link gets more bandwidth.
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Wednesday, May 6, 2009
Tuesday, May 5, 2009
Energy of the Future: Igniting a Star With Laser Light
LIVERMORE, California – It may look like one of Michael Bay's Transformers, but this mass of machinery could soon be the birthplace of a baby star right here on Earth.
Using 192 separate lasers and a 400-foot-long series of amplifiers and filters, scientists at Lawrence Livermore's National Ignition Facility (NIF) hope to create a self-sustaining fusion reaction like the ones in the sun or the explosion of a nuclear bomb — only on a much smaller scale.
Sci-fi-inspired End of Days jokes may follow this historic undertaking like they did for CERN's Large Hadron Collider, but the science behind this advanced laser system is profoundly serious.
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Using 192 separate lasers and a 400-foot-long series of amplifiers and filters, scientists at Lawrence Livermore's National Ignition Facility (NIF) hope to create a self-sustaining fusion reaction like the ones in the sun or the explosion of a nuclear bomb — only on a much smaller scale.
Sci-fi-inspired End of Days jokes may follow this historic undertaking like they did for CERN's Large Hadron Collider, but the science behind this advanced laser system is profoundly serious.
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External Airbag Protects Pedestrians
Researchers at Cranfield University in England have developed an external airbag they say will significantly reduce pedestrian fatalities and injuries in the event of a crash.
The system deploys a hood - or bonnet, as the British call it - airbag at the base of the windshield, which research shows is where a pedestrian’s head is most likely to hit. The system uses radar and infrared technology to “pre-detect” a collision and inflates quickly enough to cushion the impact, said Roger Hardy of the university’s Cranfield Impact Centre.
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The system deploys a hood - or bonnet, as the British call it - airbag at the base of the windshield, which research shows is where a pedestrian’s head is most likely to hit. The system uses radar and infrared technology to “pre-detect” a collision and inflates quickly enough to cushion the impact, said Roger Hardy of the university’s Cranfield Impact Centre.
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Start-Up Promises 1 Billion Gallons of Algal Fuel By 2025
A California company is promising to deliver one billion gallons of algal biofuel a year by 2025, an aggressive goal for technology still in its infancy.
That’s the promise from Sapphire Energy, which is positioning itself to lead an emerging industry by working with airlines on test flights and ramping up its production facilities in New Mexico. If all goes as planned, the company says, it will be in the position to supply one million gallons of biofuel annually by 2011, 100 million gallons annually by 2018 and one billion gallons each year by 2025.
“Fuel from algae is not just a laboratory experiment or something to speculate on for years to come,” Dr Brian Goodall, a Sapphire vice president, told the New York Times. “We’ve worked tirelessly, and the technology is ready now.”
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That’s the promise from Sapphire Energy, which is positioning itself to lead an emerging industry by working with airlines on test flights and ramping up its production facilities in New Mexico. If all goes as planned, the company says, it will be in the position to supply one million gallons of biofuel annually by 2011, 100 million gallons annually by 2018 and one billion gallons each year by 2025.
“Fuel from algae is not just a laboratory experiment or something to speculate on for years to come,” Dr Brian Goodall, a Sapphire vice president, told the New York Times. “We’ve worked tirelessly, and the technology is ready now.”
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CDC: Virus-surveillance technology can cut H1N1 flu diagnosis time
A $20 chip can cut the time it takes to distinguish swine flu—aka the H1N1 influenza A virus—from days to hours, the U.S. Centers for Disease Control and Prevention (CDC) said today.
The technology—InDevR, Inc.'s FluChip—includes normal 0.8- by 2-inch (2- by 5-centimeter) lab slides featuring a pencil-eraser sized patch of tiny dots containing pieces of influenza's genome. Researchers place a drop of a solution containing a sample of chemically amplified RNA (which the viruses use to make proteins) from the virus they're studying onto the slide. Once the dots react with the solution, the FluChip is placed in a 4-pound (1.8-kilogram) IntelliChip Reader where it's scanned and a digital image is produced that can help physicians identify an influenza virus down to its subtype. The process takes about seven hours.
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The technology—InDevR, Inc.'s FluChip—includes normal 0.8- by 2-inch (2- by 5-centimeter) lab slides featuring a pencil-eraser sized patch of tiny dots containing pieces of influenza's genome. Researchers place a drop of a solution containing a sample of chemically amplified RNA (which the viruses use to make proteins) from the virus they're studying onto the slide. Once the dots react with the solution, the FluChip is placed in a 4-pound (1.8-kilogram) IntelliChip Reader where it's scanned and a digital image is produced that can help physicians identify an influenza virus down to its subtype. The process takes about seven hours.
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Everything You Need to Know About Intel's New Chip, the Core i7 Platform
The New Chip in TownFirst of all, the i7 is not necessary for a consumer who is interested in just surfing the Net—an Intel-atom-based netbook is more than powerful enough for basic tasks. But if you need to take on more intense processes, the i7 is the chip du jour. The new Nehalem family (Intel's internal name for the i7 micro-architecture) has three offerings in three price categories—the Core i7-920 2.66 GHz ($290), Core i7-940 2.93 GHz ($560) and the Core i7-965 Extreme Edition, which runs at a whopping 3.2 GHz ($1000).
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Send in the Rescue Robots
Earthquakes, tsunamis, cyclones -- disasters like these make the natural environment both unnavigable and dangerous for human search-and-rescue teams. That's when it's time for robots to come to our rescue.
Earthquakes are a recurring problem in Japan, an archipelago that rests on four tectonic plates. Japan also happens to be a hotbed of robotics research, so the two have come together in surprising ways.
Professor Satoshi Tadokoro of Tohoku University has recently developed a snakebot with a camera for eyes that can slither into the rubble of collapsed buildings to see if anyone's trapped there and to send images back to rescuers in real time.
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Earthquakes are a recurring problem in Japan, an archipelago that rests on four tectonic plates. Japan also happens to be a hotbed of robotics research, so the two have come together in surprising ways.
Professor Satoshi Tadokoro of Tohoku University has recently developed a snakebot with a camera for eyes that can slither into the rubble of collapsed buildings to see if anyone's trapped there and to send images back to rescuers in real time.
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Northrop plans October roll-out for Eurohawk prototype
An October roll-out is planned for Germany's Eurohawk high-altitude long-endurance unmanned air vehicle at Northrop Grumman's Palmdale, California facility. But its first flight could be delayed until early 2010.
A variant of Northrop's RQ-4 Global Hawk Block 20 UAV developed in conjunction with EADS, the Eurohawk's first flight had already been delayed by six months until December, and could now slip into January 2010, the US prime contractor says.
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A variant of Northrop's RQ-4 Global Hawk Block 20 UAV developed in conjunction with EADS, the Eurohawk's first flight had already been delayed by six months until December, and could now slip into January 2010, the US prime contractor says.
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EADS, Lockheed Martin team up for Army helicopter
EADS today announced signing Lockheed Martin as the weapons systems integrator for a newly-revealed Armed Scout 645 helicopter, a new contender for a major US Army contract.
The Armed Scout 645 would integrate a weapons and targeting system on the Eurocopter EC145 airframe already sold to the army as the UH-72 Lakota light utility helicopter (LUH).
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The Armed Scout 645 would integrate a weapons and targeting system on the Eurocopter EC145 airframe already sold to the army as the UH-72 Lakota light utility helicopter (LUH).
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Rockwell Shows Off Self-Healing UAV
Rockwell Collins plans to demonstrate the autonomous recovery and safe landing of an unmanned aircraft after severe damage to the wing and tail under an extension to its damage-tolerant flight control work with the U.S. Defense Advanced Research Projects Agency.
Under the previous phase, the company demonstrated its flight-control software could recover and land an F/A-18 scale model after 60% of its wing was blown off. "We'll expand on that to show more realistic damage," says David Vos, senior director of control technologies. "We'll take out a big fraction of the wing and horizontal and vertical tails."
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Under the previous phase, the company demonstrated its flight-control software could recover and land an F/A-18 scale model after 60% of its wing was blown off. "We'll expand on that to show more realistic damage," says David Vos, senior director of control technologies. "We'll take out a big fraction of the wing and horizontal and vertical tails."
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High-Tech Network Monitors Mexican Border
the U.S. passing through Mexico, and claims that many of the weapons seized from drug traffickers and at crime scenes in Mexico come from the U.S., it’s obvious that the border between the countries needs more security.
A major factor driving this deadly exchange is the power of Mexican drug cartels in areas abutting the border. Violence linked to the cartels has killed more than 6,200 people in Mexico over the past year, including 522 military and law enforcement personnel, more than double the number in 2007.
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A major factor driving this deadly exchange is the power of Mexican drug cartels in areas abutting the border. Violence linked to the cartels has killed more than 6,200 people in Mexico over the past year, including 522 military and law enforcement personnel, more than double the number in 2007.
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V-22 Faces Mission Capable Rates Issues
It may be flying every mission in theater, but the MV-22 is still facing reliability issues due to inaccurate predictive modeling, according to Lt. Gen. George Trautman, U.S. Marine Corps deputy commandant for aviation.
“We’re working on it, but that’s one concern I have in the Osprey program,” Trautman told Aerospace DAILY April 30. Reliability and maintainability are “not meeting my full expectations yet.”
The V-22 was sent into combat “sooner than we should have,” Trautman said. Typically, an aircraft is deployed only after its has passed its Material Support date, which the Osprey did Oct. 1, 2008. The first squadron was deployed a year prior, in October 2007. That early deployment had an effect on the way the Marine Corps purchased spare parts for the aircraft.
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“We’re working on it, but that’s one concern I have in the Osprey program,” Trautman told Aerospace DAILY April 30. Reliability and maintainability are “not meeting my full expectations yet.”
The V-22 was sent into combat “sooner than we should have,” Trautman said. Typically, an aircraft is deployed only after its has passed its Material Support date, which the Osprey did Oct. 1, 2008. The first squadron was deployed a year prior, in October 2007. That early deployment had an effect on the way the Marine Corps purchased spare parts for the aircraft.
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Shuttle Crew Prepares a Long-Delayed Last Goodbye for Hubble
NASA is set to try again to carry out one last long-delayed shuttle mission to the Hubble Space
On May 11, if all continues to go well, a crew led by Scott Altman will blast off on the space shuttle Atlantis on an 11-day maintenance and repair mission that they say is the most daunting yet. It will be the last of these voyages that have kept the storied telescope the pride of astronomy.
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On May 11, if all continues to go well, a crew led by Scott Altman will blast off on the space shuttle Atlantis on an 11-day maintenance and repair mission that they say is the most daunting yet. It will be the last of these voyages that have kept the storied telescope the pride of astronomy.
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Missile defense satellite launched from California
VANDENBERG AIR FORCE BASE, Calif. - Department of Defense officials say an experimental satellite for the U.S. missile defense program has been launched.
A Delta 2 rocket carrying the satellite lifted off Tuesday from Vandenberg Air Force Base on the central California coast.
Rick Lehner, a spokesman for the Missile Defense Agency, says the satellite is equipped with experimental sensors designed to detect, track and provide targeting information on missiles.
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A Delta 2 rocket carrying the satellite lifted off Tuesday from Vandenberg Air Force Base on the central California coast.
Rick Lehner, a spokesman for the Missile Defense Agency, says the satellite is equipped with experimental sensors designed to detect, track and provide targeting information on missiles.
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Five years after killing Comanche, army eyes new aviation shake-up
The US Army has launched the first major review of its aviation needs since the previous study led to canceling the Sikorsky/Boeing RAH-66 Comanche.
Lt Gen James Thurman, the army’s deputy chief of staff, says the “Aviation Study-2” will consider the results from the sweeping modernization programmes launched with the Comanche’s $14.6 billion budget.
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Lt Gen James Thurman, the army’s deputy chief of staff, says the “Aviation Study-2” will consider the results from the sweeping modernization programmes launched with the Comanche’s $14.6 billion budget.
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Sunday, May 3, 2009
Program to Introduce New Threat Detection, Countermeasure Capabilities
WASHINGTON, April 27, 2009 – A lot of questions are likely to rush through your head when you’re out on the battlefield and the enemy projectiles come flying. The Defense Advanced Research Project Agency is making big strides on a program to respond with life-saving speed and accuracy.
The goal of DARPA’s CROSSHAIRS – or Counter Rocket-Propelled Grenade and Shooter System with Highly Accurate Immediate Responses -- program is to develop a threat detection and countermeasure system for light tactical vehicles, program manager Karen Wood explained.
As envisioned, Wood said, CROSSHAIRS will be able to detect and locate enemy shooters firing threats ranging from bullets to rocket-propelled grenades to anti-tank guided missiles to direct-fired mortars. In addition, it will engage the shooters and notify other friendly forces of the threat.
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The goal of DARPA’s CROSSHAIRS – or Counter Rocket-Propelled Grenade and Shooter System with Highly Accurate Immediate Responses -- program is to develop a threat detection and countermeasure system for light tactical vehicles, program manager Karen Wood explained.
As envisioned, Wood said, CROSSHAIRS will be able to detect and locate enemy shooters firing threats ranging from bullets to rocket-propelled grenades to anti-tank guided missiles to direct-fired mortars. In addition, it will engage the shooters and notify other friendly forces of the threat.
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Future Nano-Satellite Constellation to Extend Tactical Communications Beyond the-Horizon
The first batch of eight SMDC-ONE nano-satellites developed and built by Miltec Corp. for the U.S. Army Space and Missile Defense Command (SMDC) was delivered this week to the Army customer at Huntsville, Alabama. The program's goal is to demonstrate how a constellation of miniature, low-cost nano-satellites spacecraft, each costs about $400,000 perform six months in space, effectively extending tactical communications over-the-horizon.
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Northrop Grumman Delivers First Production Center Fuselage for F-35 Program
PALMDALE, Calif., April 30, 2009 (GLOBE NEWSWIRE) -- On April 22, Northrop Grumman Corporation (NYSE:NOC) reached a major milestone in the development and production of the F-35 Lightning II Joint Strike Fighter by delivering the center fuselage for the first production F-35 aircraft.
The first production F-35 is designated AF-6. It is the conventional takeoff and landing (CTOL) variant for the U.S. Air Force.
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The first production F-35 is designated AF-6. It is the conventional takeoff and landing (CTOL) variant for the U.S. Air Force.
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Pulse Detonation Engines
One of the newest and most exciting areas of pulse-jet development is the Pulse Detonation Engine (PDE).
While they work on similar principles to a regular pulsejet, the PDE has one very fundamental difference -- it detonates the air/fuel mixture rather than just allowing it to simply deflagrate (burn vigorously).
When we cause an air/fuel mixture to deflagrate in a semi-enclosed space (such as a pulsejet or auto-engine) then pressure is generated and that pressure can be harnessed to perform some work -- eg: create thrust or turn a crankshaft.
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While they work on similar principles to a regular pulsejet, the PDE has one very fundamental difference -- it detonates the air/fuel mixture rather than just allowing it to simply deflagrate (burn vigorously).
When we cause an air/fuel mixture to deflagrate in a semi-enclosed space (such as a pulsejet or auto-engine) then pressure is generated and that pressure can be harnessed to perform some work -- eg: create thrust or turn a crankshaft.
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Saturday, May 2, 2009
DHS tests bomb-proof CCTV by blowing up bus
Depressing news for extremist privacy lovers today: a cheap CCTV camera which can reliably survive a large bomb explosion with video recordings intact has been developed. It's no longer possible to cover one's tracks by simply blowing everything up.
News of the new cheapo bombproof surveillance cams comes to us courtesy of - you guessed it - the US Department of Homeland Security (DHS). The DHS didn't develop the kit, but did help test it by blowing up a bus with sixteen of the prototype ruggedised spyeyes aboard (vid below). Each camera's memory chip had been preloaded with video files in order to see how much was retained.
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News of the new cheapo bombproof surveillance cams comes to us courtesy of - you guessed it - the US Department of Homeland Security (DHS). The DHS didn't develop the kit, but did help test it by blowing up a bus with sixteen of the prototype ruggedised spyeyes aboard (vid below). Each camera's memory chip had been preloaded with video files in order to see how much was retained.
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Blurring the lines between magic and science: Berkeley researchers create an 'invisibility cloak'
The great science fiction writer Arthur C. Clarke famously noted the similarities between advanced technology and magic. This summer on the big screen, the young wizard Harry Potter will once again don his magic invisibility cloak and disappear. Meanwhile, researchers with Berkeley Lab and the University of California (UC) Berkeley will be studying an invisibility cloak of their own that also hides objects from view.
A team led by Xiang Zhang, a principal investigator with Berkeley Lab's Materials Sciences Division and director of UC Berkeley's Nano-scale Science and Engineering Center, has created a "carpet cloak" from nanostructured silicon that conceals the presence of objects placed under it from optical detection. While the carpet itself can still be seen, the bulge of the object underneath it disappears from view. Shining a beam of light on the bulge shows a reflection identical to that of a beam reflected from a flat surface, meaning the object itself has essentially been rendered invisible.
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A team led by Xiang Zhang, a principal investigator with Berkeley Lab's Materials Sciences Division and director of UC Berkeley's Nano-scale Science and Engineering Center, has created a "carpet cloak" from nanostructured silicon that conceals the presence of objects placed under it from optical detection. While the carpet itself can still be seen, the bulge of the object underneath it disappears from view. Shining a beam of light on the bulge shows a reflection identical to that of a beam reflected from a flat surface, meaning the object itself has essentially been rendered invisible.
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Safety Laser Scanner covers up to 48 zones
The New Keyence SZ Series, Type 3 Safety Laser Scanner, allows users to configure protection areas anywhere, even in complex-shaped zones and dangerous areas. Its compact body and light weight help facilitate installation and save space without compromising quality or detection range. Despite its compact size, the SZ Series can create a protection zone up to 4.2m (13.77') with a warning zone area projecting as far as 10 m (32.80') from the scanner.
The SZ Series ensures reliable detection of any target regardless of its color or surface finish. Even matte black targets can be detected, thus eliminating the need to worry about dark colored work clothes affecting its performance.
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The SZ Series ensures reliable detection of any target regardless of its color or surface finish. Even matte black targets can be detected, thus eliminating the need to worry about dark colored work clothes affecting its performance.
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Rubber Suspensions target fire and rescue industry.
Available in tandem capacities of 42,000, 48,000, 54,000, and 58,000 lb, HN® FR Series utilizes VariRate® spring system to provide optimal balance of empty ride quality and loaded stability. Diagonally-mounted rubber bolster springs act in compression and shear to dissipate road shock, while extra wide spring centers and Hytrel® auxiliary springs provide stability for high center of gravity applications and emergency driving conditions.
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RFID Asset Tracking Solution Debuted by DAILY RFID
DAILY RFID has released a modified RFID Asset Tracking solution, designed to track and manage mobile and fixed assets. It can automatically keep track of assets as they move in and out of an area.
This 13.56MHz RFID asset tracking solution can apply to all assets in business. To track asset with RFID, asset tracking tags or rfid metal tags are attached to the assets, depending on different environment, so as to enable the stability of the system.
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This 13.56MHz RFID asset tracking solution can apply to all assets in business. To track asset with RFID, asset tracking tags or rfid metal tags are attached to the assets, depending on different environment, so as to enable the stability of the system.
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Blade forces
US researchers have developed a technique that uses sensors and software to constantly monitor forces exerted on wind-turbine blades.
The research by engineers at Purdue University and Sandia National Laboratories is part of an effort to develop a smarter wind-turbine structure.
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The research by engineers at Purdue University and Sandia National Laboratories is part of an effort to develop a smarter wind-turbine structure.
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Speed Bump Sensors Keep Hummers Rolling
Wear and tear on Humvees need not slow down the U.S. Army – soldiers could soon drive over speed bump-like diagnostic cleats to determine the conditions their vehicles are in.
Embedded sensors could detect suspension or tire problems by comparing vibration signatures with the baseline signature of a healthy vehicle. Researchers used triaxial accelerometers to gauge tire forces in a cleat prototype.
"The cleat is a quick first check to determine what's mechanically wrong with a vehicle before wasting time hunting for potentially simple problems," said Joseph Gothamy, who leads the reliability and durability simulation team at Army's Tank Automotive Research, Development and Engineering Center, in Warren, Michigan.
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Embedded sensors could detect suspension or tire problems by comparing vibration signatures with the baseline signature of a healthy vehicle. Researchers used triaxial accelerometers to gauge tire forces in a cleat prototype.
"The cleat is a quick first check to determine what's mechanically wrong with a vehicle before wasting time hunting for potentially simple problems," said Joseph Gothamy, who leads the reliability and durability simulation team at Army's Tank Automotive Research, Development and Engineering Center, in Warren, Michigan.
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Hackers Breach the Joint Strike Fighter Program
Cyberwarfare ratchets up as intruders siphon information from the Pentagon's most sensitive and expensive weapons program. Are Chinese hackers responsible?
After frightening revelations that hackers have already managed to break into the computer systems that control huge swaths of the United States' power grid and other pieces of national infrastructure, the Wall Street Journal reports that cyber-spies have broken into the Pentagon's Joint Strike Fighter program -- its costliest initiative -- and made off with several terabytes of sensitive data. Hackers have also managed to get into the Air Force's air-traffic-control system, the Journal reports.
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After frightening revelations that hackers have already managed to break into the computer systems that control huge swaths of the United States' power grid and other pieces of national infrastructure, the Wall Street Journal reports that cyber-spies have broken into the Pentagon's Joint Strike Fighter program -- its costliest initiative -- and made off with several terabytes of sensitive data. Hackers have also managed to get into the Air Force's air-traffic-control system, the Journal reports.
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Social Networking for Emergencies
Microsoft Vine takes the trivia out of tweeting
Emergency response entails a widespread tactical effort by countless government agencies. Too often, citizens are left out of the loop and have to rely on mass media, cell phones, and Web sites for emergency information. Microsoft Vine is a new social networking tool, designed to help its users keep tabs on people and places. Currently in a beta test in Seattle, the service lets you enter a location and see news reports aggregated from 20,000 sources, and from the United States National Oceanic and Atmospheric Administration. You can enter people you want to track into Microsoft Vine, and then receive an e-mail, text message, or an update about them in the Vine dashboard -- which runs on Windows only. Disaster victims with Macs are out of luck.
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Emergency response entails a widespread tactical effort by countless government agencies. Too often, citizens are left out of the loop and have to rely on mass media, cell phones, and Web sites for emergency information. Microsoft Vine is a new social networking tool, designed to help its users keep tabs on people and places. Currently in a beta test in Seattle, the service lets you enter a location and see news reports aggregated from 20,000 sources, and from the United States National Oceanic and Atmospheric Administration. You can enter people you want to track into Microsoft Vine, and then receive an e-mail, text message, or an update about them in the Vine dashboard -- which runs on Windows only. Disaster victims with Macs are out of luck.
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GE breakthrough steps closer to 500 Gbyte optical storage disc
Although they are not the first to develop ultrahigh-density data storage technology (see "Terabyte optical disc relies on two-photon process" and "Harvard researchers develop plasmonic laser antenna [to improve optical storage technology]"), GE Global Research (Niskayuna, NY), the technology development arm of General Electric, announced a major breakthrough in the development of next-generation optical storage technology. GE researchers successfully demonstrated a threshold micro-holographic storage material that can support 500 gigabytes (Gbyte) of storage capacity in a standard DVD-size disc.
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Air Force fields special flight suit for JSF
Pilots flying the F-35 Lightning II are getting their own flight suit, a more comfortable one that will protect their arms if they have to eject from the stealth fighter.
The sage-green flight suit looks like the one now worn by thousands of other airmen except for no line-cutter pocket on the left leg and the addition of a removable fabric cord attached to each upper sleeve, said Cheryl Limrick, a spokeswoman for the Joint Strike Fighter program office in Arlington, Va.
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The sage-green flight suit looks like the one now worn by thousands of other airmen except for no line-cutter pocket on the left leg and the addition of a removable fabric cord attached to each upper sleeve, said Cheryl Limrick, a spokeswoman for the Joint Strike Fighter program office in Arlington, Va.
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