View post tag: Help View post tag: americas Authorities View post tag: Mines Back to overview,Home naval-today GTRI’s Sonar to Help US Navy Find Sea Mines New sonar research being performed by the Georgia Tech Research Institute (GTRI) could improve the Navy’s ability to find sea mines deep under water.The underlying technology, known as synthetic aperture sonar (SAS), uses advanced computing and signal processing power to create fine-resolution images of the seafloor based on reflected sound waves. Thanks to the long-term vision and a series of focused efforts funded by the Office of Naval Research spanning back to the 1970s, SAS has become a truly robust technology. When it transitions to the fleet, the SAS will dramatically improve the Navy’s ability to carry out the mine countermeasures mission.“The Navy wants to find sea mines,” said Daniel Cook, a GTRI senior research engineer. “There are systems that do this now, but compared to SAS, the existing technology is crude.”The SAS research is funded by a grant from the Office of Naval Research, and is conducted in collaboration with the Applied Research Laboratory at the Pennsylvania State University. In the past year, the group has made strides in improving the ability to predict and understand sonar image quality and has published and presented their work at conferences.Sonar systems emit sound waves and collect data on the echoes to gather information on underwater objects.The Navy uses torpedo-shaped autonomous underwater vehicles (AUVs) to map swaths of the seafloor with sonar sensors. Perhaps the most well-known example is the Bluefin 21 used to search for Malaysian Airlines Flight 370.The AUVs zigzag back and forth in a “mowing the lawn pattern,” Cook said.These AUVs can map at a range of depths, from 100 to 6,000 meters.SAS is a form of side scanning sonar, which sends pings to the port and starboard sides of the AUV and records the echoes. After canvassing the entire area, data accumulated by SAS is processed into a mosaic that gives a complete picture of that area of the seafloor.SAS has better resolution than real aperture sonar (RAS), which is currently the most widespread form of side scan sonar in use. RAS transmits pings, receives echoes and then paints a strip of pixels on a computer screen. RAS repeats this pattern until it has an image of the seafloor. This technology is readily available, and relatively cheap, but its resolution over long ranges is not good enough to suit the Navy’s mine hunting needs.RAS sensors emit acoustic frequencies that are relatively high and are therefore quickly absorbed by the seawater. SAS uses lower frequency acoustics, which can travel farther underwater. Upgrading to SAS improves the range at which fine resolution pictures can be produced.“RAS can give you a great looking picture but it can only see out 30 to 50 meters,” Cook said. “For the same resolution, SAS can see out to 300 meters.”[mappress]Press Release, June 24, 2014; Image: Georgia Tech Research Institute Share this article Since World War II, sea mines have damaged or sunk four times more U.S. Navy ships than all other means of attack combined, according to a Navy report on mine warfare. June 24, 2014 View post tag: Naval View post tag: US Navy View post tag: News by topic View post tag: Navy View post tag: research View post tag: sea View post tag: Sonar View post tag: find GTRI’s Sonar to Help US Navy Find Sea Mines View post tag: GTRI
By Donald WittkowskiMayor Jay Gillian on Thursday night touted Ocean City’s strong finances, tax-friendly reputation and ambitious capital improvement program during a State of the City address that serves as the foundation for his re-election campaign this year.Gillian, who is seeking his third term in the May 8 municipal election, also unveiled his proposed $79.9 million budget for 2018. The budget will add a penny to the local tax rate while financing an array of construction projects that address the city’s critical infrastructure needs.Speaking before City Council, Gillian called on the governing body to continue to work with him to stimulate economic growth, promote tourism and build projects that will “improve our infrastructure and way of life.”“The great news is the state of the city is strong. And although it is strong, we still have challenges,” he said.Gillian stressed that he wants to maintain “the first-class services people come to expect in Ocean City – in the most cost-effective manner possible.”“As mayor, I will make sure our city is clean, safe and family-friendly and will commit the resources to make that happen,” he said.He also used his address to outline a series of economic achievements during his administration that are expected to position the town for further growth in 2018 and years to come.Road and drainage improvements, beach replenishment projects, the Boardwalk’s reconstruction and the dredging of the shallow back bays will all pay dividends as the city looks to make itself even more appealing to residents and tourists, he said.“We’ve tackled major repairs to every part of Ocean City, and the work continues,” he said. “All of the people who live here, own property here or vacation here share a love of Ocean City.”In the past two years, in particular, Gillian has placed a heavy emphasis on capital projects to catch up on what he has described as the city’s aging and long-neglected infrastructure.He noted that during his eight years as mayor, the city has completely rebuilt more than 18 percent of the town’s 110 miles of roads and alleys. More than 25 percent of the streets will have been repaved when the city completes the most recent series of road and drainage projects, he said.This year, major road and drainage improvements will target flooding that occurs from 26th to 34th streets, between West Avenue and Bay Avenue. The city is also launching new drainage projects in flood-prone neighborhoods from Second Street to Eighth Street, between West Avenue and the bay. On Feb. 8, Council approved the mayor’s $100 million, five-year capital plan, a sweeping blueprint for construction projects that will span from the beaches to the Boardwalk to the bay. The capital plan calls for $38.7 million worth of projects in 2018 alone. On Thursday night, Council approved a $5.7 million bond ordinance to finance the first round of projects.“The city continues to experience strong tax-base growth. We’ve added more than $100 million in ratables in each of the past four years. That makes this an ideal time to complete this ambitious list of capital projects,” Gillian said.City Council will review the proposed $79.9 million municipal budget before voting on it in the next two months.Separate from the capital plan is the city’s 2018 municipal budget. Gillian gave Council the first glimpse of his proposed budget while delivering his State of the City address.Council will scrutinize the budget in coming weeks as it prepares to formally introduce it on March 22 during the first of two votes required for the spending plan. A final vote and public hearing are tentatively scheduled for April 26.The proposed $79.9 million budget is 1.5 percent higher than the 2017 spending plan and adds a penny to the local tax rate. The owner of a $500,000 home would pay an extra $50 in local taxes under the budget.Gillian said the city’s property tax rate remains low overall, at 0.79 percent. Emphasizing his point, he cited a NJBIZ story that called Ocean City “the most tax-friendly municipality in New Jersey for retirees.”“I’d like to stress that conservative financial planning will always be a priority of mine,” he said.In other business Thursday night, Council honored three leaders of the Ocean City school district by presenting them with proclamations recognizing their achievements.Superintendent of Schools Kathleen Taylor, American Sign Language Teacher Amy Andersen and Ocean City High School Student Council President Nora Faverzani are all “amazing women” who have made the Ocean City school district one of the best in the state, the Council members said.Taylor has been named New Jersey’s Superintendent of the Year and is a candidate for National Superintendent of the Year honors. Andersen has been selected as New Jersey’s Teacher of the Year and is a finalist for National Teacher of the Year. The winners will be announced in the spring.Faverzani, meanwhile, has been named State Board of Education student representative for 2018. The 16-year-old junior is the daughter of former Ocean City Councilwoman and former Cape May County Freeholder Susan Sheppard, who is now a Superior Court judge.“Nora Faverzani, what a rock star,” Councilman Michael DeVlieger said. “She’s somebody to watch. She’s going to do great things in her life.”Taylor and Andersen also were praised by the Council members and Mayor. DeVlieger called Taylor “world class.” Council President Peter Madden said Andersen has inspired countless students in her American Sign Language class and helped to make Ocean City a deaf-friendly community.Speaking for the three women, Taylor thanked the mayor and Council for their support of the school district. She said the district has benefited immensely from all of the hard work invested by the community.“We strive every day to make sure we have the best possible educational system for our students,” Taylor said.Superintendent of Schools Kathleen Taylor, Ocean City High School Student Council President Nora Faverzani and American Sign Language Teacher Amy Andersen, center of group, receive honors from City Council and the mayor. Mayor Jay Gillian accuses John Flood of “stringing together documents from unrelated projects to manufacture false conclusions.”
Boost Performance and Capacity of SC Storage with Free OS UpgradeEvery IT customer wants maximum value from their storage infrastructure at the lowest cost at the time of purchase and over the full lifespan of the product. And why not? They should! But the reality is that not all vendors can deliver on this commitment. Most storage products become slower and overburdened over time, use obsolete technology, and require a short-term replacement. What if a vendor provided no-cost upgrades to their customers, adding substantial new features and functionality with each release, dramatic performance gains, and tools to reduce the management overhead? Now, that would be game-changing.At Dell EMC, we’re taking a different approach than most vendors. We recognize the investment customers have made in the SC Series platform, and we’re taking bold steps to ensure the platform provides compelling value time and time again, at the lowest cost and complexity. I’ve yet to meet a customer that doesn’t need more performance from their storage system. We’ve optimized the internal code top to bottom, extracting every ounce of performance wherever we could, and the results are truly amazing.Affordable Flash Arrays, Now 2X FasterDell EMC today announced the new SC Operating System 7.3, a free upgrade for customers with an active ProSupport agreement that offers major performance gains, plus a variety of new management capabilities. With this release, the SC Series offers an astounding 2X increase in maximum IOPS for every current array – from our largest to our smallest models.1Three SC platforms now exceed 1 million max IOPS – and SC9000 tops 2.2 million.1 Dell EMC tests show real-world applications such as VDI and SQL OLTP perform 33%2 to 54%3 faster on SCOS 7.3 – all for no cost, and virtually no effort.But it’s not only performance. SCOS 7.3 also makes SC easier to manage with the new “Unisphere for SC” HTML 5 web interface (same look and feel across SC Series and Dell EMC Unity platforms), introduces data-in-place upgrades for the popular SC4020 array, enhances our Live Volume feature for reduced latency and network traffic in high availability environments, increases maximum array capacity up to 2×4, and adds support for 100Gb and 25Gb iSCSI networking.Best of all, current customers of either our SC All-Flash or SC Hybrid arrays can easily upgrade their firmware to experience an overnight performance boost, while continuing to benefit from the leading economics of our sophisticated tiered storage architecture and intelligent data placement.All in a Day’s WorkThis release highlights a guiding philosophy of the Dell EMC Midrange storage team. With programs such as the Future-Proof Loyalty Program, which gives customers and partners guaranteed satisfaction and investment protection for their future technology changes, we’re working to ensure customer satisfaction over the long haul. The new SC Series continues our tradition of adding great value through new features with no hidden costs to the end user.Compression and deduplication – No-charge data reduction on both SSDs and HDDs gives customers more usable capacity (for example, up to 50% savings in VDI environments)Increased performance – No-charge upgrades (such as this release) accelerate workloads and delay future hardware expenseEnhanced management – No-charge for tools and 3rd-party integration/interop to ensure SC stays in sync with diverse application and ecosystem needs.Multi-array federation – No charge for increased system scale, flexibility and availability, now supported by the entire family of SC productsCustomer ReactionIt’s not surprising customers and partners alike are responding favorably to the way SCOS 7.3 allows them to move ahead quickly with new solution strategies. Here’s what some of them had to say:“The 7.3 release will free up additional time for IT departments,” said Donald Weaver, President of Weaver Technologies. “Instead of having to replace [hardware] with new gear, now we can use existing gear and attain more IOPs and more capabilities, without having to do a physical upgrade. This will essentially be like getting a [new] array for free.”————“The SC Series is a staple in our Dell storage portfolio and has been for a number of years,” said Scott Winslow, President, Winslow Technology Group, LLC. “It’s a time-tested platform, and our customers have benefited from the way Dell provides significant new features over time. Dell EMC has shown a steady, regular cadence for innovation that allows current and new customers to get more out of their existing system. “We’re really excited about this release, as test results show a 2X increase in maximum IOPS across every current platform in the SC Series. The very idea that a free software download can give this level of improvement is a rarity in the IT industry. We’re big fans of the SC Series, and with performance gains like these, it really helps us. More importantly, it really helps our customers.”There’s simply a lot to love about this release. I encourage you to contact your Dell EMC representative or authorized partner to learn more. To our existing customers, thank you for the opportunity to ensure we meet and exceed, your expectations. We know you’ll be delighted with SCOS 7.3. For those customers running VDI, SQL, or any other databases, we’re confident you’ll see the difference in performance. And if you’re not a customer yet, we welcome you to join our SC Series customer family.1 – Based on internal tests performed in February, 2018 on SC9000, SC7020, SC5020 and SCv3020 arrays running 7.3 vs. 7.2 firmware on 100% sequential reads with 4K sector transfer size. Actual performance will vary based on configuration, usage and manufacturing variability.2 – Based on internal tests performed by Dell EMC on an SC9000 with 7.3 vs. 7.2 firmware. Actual performance will vary based on configuration, usage and manufacturing variability.3 – Based on internal tests performed by Dell EMC in February 2018 running TPC-E like workloads (95% reads, 8K sector transfer size) on an SC9000 with 7.3 vs 7.2 firmware. Actual performance will vary based on configuration, usage and manufacturing variability.4 – SCOS 7.3 increases the maximum raw capacity for SC9000, SC7020 and SC5020 arrays. SC9000 increases from 3PB max to 6PB max, assuming 2MB page sizes.
RelatedPosts Ighalo: My best moment as ‘Red Devil’ Ings not interested in leaving Saints, Southampton manager says Live stream Premier League, La Liga, Serie A on Showmax Pro this weekend England’s Premier League said on Thursday its shareholders had unanimously agreed to a broadcast deal in China for the 2020/2021 season with digital media platform Tencent.Financial terms were not disclosed for the deal, which replaces a $700 million contract with Chinese retail group Suning’s PPLive Sports International, which was terminated earlier this month. The league confirmed that viewers in China would be able to watch all 372 remaining league matches on Tencent’s streaming and news platforms.“We are excited to have agreed this partnership with Tencent, ensuring our supporters in China can enjoy following Premier League action throughout this season,” Premier League chief executive Richard Masters said.“We and our clubs have an extremely passionate fanbase in China and are looking forward to working with the team at Tencent to engage with fans in new ways over the coming season.”Tencent will broadcast half of all the matches available for free in China, with the remaining fixtures available via a membership service.“In collaboration with the Premier League, Tencent Sports hopes to leverage its platforms and technology to bring the drama of Premier League matches to fans and share with them the passion and excitement of football,” Tencent Sports general manager Ewell Zhao said. The league’s previous deal with PPLive was struck during the peak of Chinese interest in international football and was due to expire in 2022.The partnership ended abruptly after the Daily Mail newspaper reported that the Chinese broadcasters had withheld payments due to the league in March.The new agreement with Tencent will help Premier League clubs offset some of the financial losses caused by the COVID-19 outbreak.The pandemic had forced matches to be suspended for several months, before the 2019/2020 season resumed in June without spectators.The league said it would continue to explore opportunities for free-to-air broadcast coverage in China for the current season. Reuters/NAN.Tags: PPLive Sports InternationalPremier LeagueRichard MastersTencent