The multi-seasonal NOy budget in coastal Antarctica and its link with surface snow and ice core nitrate: results from the CHABLIS campaign

first_imgMeasurements of a suite of individual NOy components were carried out at Halley station in coastal Antarctica as part of the CHABLIS campaign (Chemistry of the Antarctic Boundary Layer and the Interface with Snow). Conincident measurements cover over half a year, from austral winter 2004 through to austral summer 2005. Results show clear dominance of organic NOy compounds (PAN and MeONO2) during the winter months, with low concentrations of inorganic NOy. During summer, concentrations of inorganic NOy compounds are considerably greater, while those of organic compounds, although lower than in winter, are nonetheless significant. The relative concentrations of the alkyl nitrates, as well as their seasonality, are consistent with an oceanic source. Multi-seasonal measurements of surface snow nitrate correlate strongly with inorganic NOy species (especially HNO3) rather than organic. One case study in August suggested that, on that occasion, particulate nitrate was the dominant source of nitrate to the snowpack, but this was not the consistent picture throughout the measurement period. An analysis of NOx production rates showed that emissions of NOx from the snowpack overwhelmingly dominate over gas-phase sources. This result suggests that, for certain periods in the past, the flux of NOx into the Antarctic boundary layer can be calculated from ice core nitrate data.last_img read more

Warship Kostiantyn Olshansky Leaves for Libya to Evacuate Ukrainian Citizens

first_imgBack to overview,Home naval-today Warship Kostiantyn Olshansky Leaves for Libya to Evacuate Ukrainian Citizens View post tag: Warship The Kostiantyn Olshansky, a large landing ship of the Ukrainian Navy, put to sea from Sevastopol (southern Ukraine) on Wednesday to conduct…(ukrinform)[mappress]Source: ukrinform,March 23, 2011; View post tag: Leaves View post tag: Olshansky View post tag: Evacuate View post tag: News by topic View post tag: Naval View post tag: Kostiantyncenter_img March 23, 2011 View post tag: Libya View post tag: Ukrainian Share this article View post tag: Navy Warship Kostiantyn Olshansky Leaves for Libya to Evacuate Ukrainian Citizens View post tag: citizenslast_img read more

Accelerating Alzheimer’s Disease Breakthroughs With HPC

first_imgUniversity of Queensland highlights potential of ultrasound to delay the onset of Alzheimer’s diseaseThe University of Queensland is modeling possible treatments for some of the most debilitating illnesses such as Alzheimer’s disease. The Queensland Brain Institute, the University’s neuroscience research institute, is using its high performance computing system to model the behavior of ultrasound using an analysis technique called Finite Element Method (FEM).The modeling calculates what happens to each element of the brain when an ultrasound is passed through the skull. It is hoped that ultrasound can be used to temporarily allow direct delivery of therapeutic drugs to the brain, something not currently possible due to the presence of a blood-brain barrier. The team also hopes to activate cells that can digest the plaques that are a hallmark of Alzheimer’s disease. The promising results will now be confirmed in a sheep study, an animal with similar skull properties as humans, and may be instrumental in developing treatments that stop or reserve degeneration, rather than just relieving symptoms.I am inspired! And it’s Dell Technologies customers like the University of Queensland who give me hope for our future.The University of Queensland (UQ) is consistently rated as one of Australia’s premier research-intensive universities by independent third parties. For example, UQ was awarded five out of five stars for research grants and research intensity by the Good Universities Guide. And the influential Academic Ranking of World Universities places UQ at 55th globally. To maintain these world-class rankings, UQ strives to empower its faculty with leading-edge high performance computing (HPC) systems. The latest example is the Wiener system, an HPC cluster designed in cooperation with Dell EMC to accelerate discovery and innovation.Niche supercomputing for cutting-edge microscopyThe university’s Research Computing Centre (RCC) is tasked with managing HPC resources. The RCC has developed a strategy for broadening the HPC infrastructure base, built on the theory that it’s more cost-effective to serve different application types with different machines.Launched in 2018, Wiener is the first ever dedicated GPU-accelerated supercomputer in an Australian university. It was designed specifically for imaging-intensive workloads generated by the University’s microscopy facilities and its world-class Lattice Light Sheet Microscope based at the University’s Institute of Molecular Bioscience. Wiener was developed and paid for with strategic funding from UQ and a consortium of the University’s various cutting-edge microscopy facilities.The RCC worked in close partnership with Dell Technologies to develop the system’s capabilities. This groundbreaking project was completed in two phases. The first used Dell EMC PowerEdge R740 Servers as building blocks for processing data sets across 15 compute and analysis nodes, along with two additional nodes for visualization. The visualization nodes were included to provide processing power for a fully interactive experience to researchers viewing 4D data sets in real time at the edge of the scientific instruments throughout the university campus.The second incorporated 15 Dell EMC PowerEdge C4140 Servers, each with two Intel® Xeon® Gold 6132 Scalable processors with 28 cores per node, 384GB of DDR4 RAM, four NVIDIA SXM2 Tesla 32GB V100 GPUs, 1.6TB of Dell EMC NVMe flash storage, and 100-Gbps Mellanox® EDR InfiniBand® networking.The complete system includes 32 Dell EMC PowerEdge servers and 527,360 NVIDIA® Tesla® GPU cores distributed across the compute and analysis nodes. UQ wanted a system with multiple GPUs for parallel processing massive amounts of computational tasks such as those involved in data visualization and machine learning.The supercomputer also leverages an open‑source, parallel‑cluster file system, designed specifically to manage I/O‑intensive workloads in performance‑critical environments. Both phases of the system are backed by Dell EMC ProSupport Plus for 24×7 technical support and assistance.Half a million GPU cores in actionThe Wiener supercomputer has a total performance of 11.3 petaFLOPS. Because the system has more than a half-million CUDA cores along with the parallel file system, it can easily handle multiple workloads, some of which generate 70–80 TBs of data per day. Researchers can process a single file at 105Gb/s, with up to 15 million IOPS.“For the scale of machine learning to take place with the CPUs we previously had on campus, in some cases what we have now is 100 times faster,” says Jake Carroll, chief technology officer at UQ. “It’s literally untenable to run on CPUs [alone].” He continues, “The machine has become a plethora of massive machine learning and deep learning capabilities in the organization. It’s the focal point of AI computing at the University of Queensland.”The cutting edge of accelerated technologyWith the accelerated computing power of the Wiener supercomputer, UQ researchers can solve pressing global challenges while helping maintain the school’s status as a top research university.“Given demand for the system is still going up, it is our intention to work with Dell Technologies to stay on the cutting edge of accelerated technology,” Carroll says, “and we would like to be the first in the Asia Pacific to deploy whatever technological leap in this area comes next.”To learn moreRead the case study, “Accelerating research breakthroughs.”Read the press release, “The University of Queensland Uses Dell Technologies Supercomputer to Pioneer New Alzheimer’s Disease Breakthrough.”Read the Weiner supercomputer technical specifications.Learn about technologies for HPC/AI at DellEMC.com/HPC.last_img read more

Texas solar capacity could hit 5.8GW in 2020

first_imgTexas solar capacity could hit 5.8GW in 2020 FacebookTwitterLinkedInEmailPrint分享PV Magazine:Solar capacity in the ERCOT grid region has the “potential” to reach 5.8 GW this year, said ERCOT in its annual “State of the Grid” report. ERCOT serves nearly all of Texas.Solar capacity in ERCOT has room to grow, as it met less than 2% of the grid’s load last year. Wind power met 20% of the grid’s load, with wind capacity at 24 GW and potentially rising to 33 GW this year. Wind and solar generation developers submitted a “record number of interconnection requests” last year, the report said, and “with more solar projects coming online, wind and solar power have begun to complement each other.”Solar additions this year should also help serve peak load, which exceeded 74 GW last August 12, and which ERCOT expects to reach just under 77 GW this summer.ERCOT’s pricing structure, which allowed wholesale rates to briefly reach the maximum $9,000 per megawatt-hour last August, gives all retail providers “a significant incentive” to reduce the impact of wholesale price swings, by entering long-term supply arrangements such as power purchase agreements, in the view of Travis Kavulla, vice president of regulatory affairs for NRG Energy, a retail provider in ERCOT. Solar power purchase agreements, in turn, help solar developers gain the financing needed to build their solar projects.[William Driscoll]More: Texas could add 3.5 GW of solar this yearlast_img read more

Secret Islands of the Chesapeake

first_imgMy friend Roland and I often lament that we live on opposite coasts. We both have the kind of rare jobs that let us set our own hours (I’m a freelance journalist, he runs a tech company), so we share the luxury of being able to travel in the middle of the week while most other grownups are confined to cubicles. So when Roland called me up one Tuesday night saying he was in town and in need of an adventure, I knew a spur-of-the-moment road trip was in order. We spent a few minutes weighing the standard options within a 100-mile radius: hike White Oak Canyon/Cedar Run? drive out to Blue Hole for a swim? rent out kayaks on Lake Anna? And then it came to me.“We could pick one of the random islands of the Chesapeake and try to get to it?” I phrased it as a question, not entirely sure the suggestion was worthy of practical consideration. But he was immediately on board. I dragged around Google Maps, marveling at the tiny specks of land I never knew existed. We eventually settled on Solomons Island. He recalled the area since many years ago, his parents, both biologists, worked on a boat off its coast.The next morning greeted us with 78-degree sunshine and clear blue skies. We headed east in Roland’s black Volkswagen Jetta, and in two short hours, we made it to the southern tip of the Calvert Peninsula on Maryland’s Western Shore. There, where the Patuxent River unites with the Chesapeake Bay, lies Solomons Island.We parked by the boardwalk and walked around, acquainting ourselves with the historic fishing village. We passed through a marina and saw a couple of boats that hailed from the same place we did, D.C. In the boatyard, two men were making repairs on an impressive sailboat. Wandering down the riverwalk, we came across a little hut with a sign saying “Solomons Boat Rental.” Upon closer inspection, the shop was closed, but another sign had a number to call if no one was around. The office only had a few powerboats available. Since I had never driven a powerboat in my life before, we decided to go for it. We had the owner meet us in a couple hours so we had a bit more time to explore the island.We couldn’t visit Maryland without eating crabs, so we looked for a place serving up genuine Chesapeake crab cakes. Unfortunately, most restaurants were closed. We finally came to a little retail strip home to the CD Café. It was open and full of locals; plus, the name was too good to pass up. Only after we were seated did we realize the menu was devoid of crab dishes. Our mission was a failure. When our server recited the day’s specials, though, a crab cake sandwich answered our prayers. It smelled amazing coming out of the kitchen. The gently pan-fried cake was bursting with sweet lump meat – no pesky additives to interfere with the fresh, succulent crab.After lunch, we headed back to the boat rental office and took out a 19-foot bow rider. We set off up the Patuxent, with practically the entire river to ourselves. I took the wheel and gave driving a try. Breathing in the delicious air, I was exhilarated by the feeling of speed on the water. As we headed north, we stumbled upon several tiny coves and creeks concealed by the picturesque landscape. Each one was more peaceful than the last. Surrounded by lush greenery, we passed by the appropriately named Greenwell State Park on the left. It was so beautiful out there, so quiet, so incredibly scenic, I couldn’t believe we were just 60 miles from the nation’s capital. I realized that in about the same amount of travel time from D.C., I could be exploring any number of islands hidden within the great expanse of the Chesapeake.A couple months after my Solomons excursion, I enlisted another friend on a mission to discover the wetland island of Eastern Neck National Wildlife Refuge. And a couple months after that, I vowed to learn about and eventually visit the many other treasures the bay has been keeping secret all this time.7658400548_1c493f4a20_kEastern Neck National Wildlife RefugeEastern Neck is a 2,285-acre island enjoying federal protection as part of the Chesapeake’s vast complex of national marshlands. The refuge is a birder’s paradise, providing habitat to dozens of species, including bald eagles, tundra swans, hawks, and various songbirds and waterfowl. Cradled by the converging waters of the Chester River and the Chesapeake Bay, its system of tidal marshes, upland forests, freshwater ponds, grasslands, and carefully managed croplands attract over 100,000 migratory and wintering birds seeking sustenance and sanctuary.Several hiking trails make it easy to explore this peaceful island on foot. Although swimming is not officially permitted in surrounding waters, passersby will likely encounter a few rule-breakers. Those who visit with boats in tow, however, can launch their kayaks or canoes from Bogles Wharf Landing, off the eastern edge of the refuge. Kayakers who’d rather rent can do so near the park’s entrance at the outfitter Eastern Neck Boat Rentals – just remember to bring cash, since this tiny shack of an operation does not accept credit cards or checks. The refuge itself also periodically hosts group kayaking nights for boat owners with a love of moonlight paddling.Solomons IslandFar less desolate than Eastern Neck, Solomons has a number of attractions in town, including waterside concerts, the Calvert Marine Museum, the Annmarie Sculpture Garden and Arts Center, the Harbor Island Marina, a few great seafood houses, and even a tiki bar (cleverly named Tiki Bar). By land, get your juices flowing with a self-guided bike tour of the island. By water, the Patuxent Adventure Center rents out (and sells) SUP boards in addition to leading kayaking expeditions that introduce tourists to the local marine life.St. George IslandAlthough I may be biased by my own introduction to the island, I would say the best way to experience St. George is by sleeping on its shores, under the stars, with the waves gently lapping nearby.Private campgrounds on the beaches of St. George Island, where the Potomac River flows into the bay, include the family-owned Camp Merryelande and Far East Beach. The latter site has kayaks and canoes that campers can rent. In addition to swimming and kayaking, many visitors also catch their own lunch or dinner – either right off the beach or at one of the nearby fishing piers.Smith IslandThe ferry to Smith Island leaves twice daily, at 12:30pm and 5:00pm, from the nearby town of Crisfield (adjacent to Janes Island State Park – itself worth a visit for its secluded beaches and saltmarsh water trails). Kayaks can be taken on the passenger ferry for a small additional fee.The heart of America’s soft shell crab industry, Smith Island is part of a remote archipelago of arteries that pump life into the seafood economy up the coast. During warm months, visitors can watch the crabbing and crab picking in action. The Smith Island Crabmeat Co-op invites curious tourists to watch the picking process, either via an observation window, or up-close inside for $3 (crabmeat samples included).After feasting on soft shell crabs or crab cakes at one of the island’s restaurants or seafood markets, be sure to try a slice of Smith’s signature dessert, Smith Island Cake – 8 to 15 layers of yellow cake divided by sheets of icing, cream, and/or crushed candy bars and iced with a cooked chocolate fudge frosting.Tangier IslandTangier Island, population 727, is so isolated that its people have their own distinct dialect. Encircled by Virginia’s portion of the bay, the island was founded in the late 1600s by Cornish settlers with their Elizabethan parlance. Over the centuries, this has combined with islander mannerisms to create the unique island accent.Most families on Tangier rely on crabbing and fishing for their livelihoods. Watermen wake up at 3am to begin harvesting soft shell crabs or oysters. The fruits of their labor can be unpredictable; last year’s erratic weather yielded a crab surplus in the spring, and then a crab shortage in the summer. Visitors can get a taste of what it’s like to be a Chesapeake waterman by riding with a local captain for a crabbing tour of Tangier. In addition to crabbing tours, the bed and breakfast Hilda Crockett’s Chesapeake House offers eco-tours, birding trips and sunset boat excursions.Watts IslandThere is something astoundingly romantic to me about the notion of a deserted island. An uninhabited land practically right in my backyard, just a couple hours outside a city swarming with four million people. The tiny island of Watts can be visited on a day trip from Tangier via kayak or canoe (or other small boat), as it lies just a few miles east of the larger landmass. Few settings in this world can make us feel like explorers, wandering and discovering a strange and unknown place. Watts is one of them.last_img read more

Sessions Cites Central Islip Quadruple Murder in Touting MS-13 Crackdown

first_imgSign up for our COVID-19 newsletter to stay up-to-date on the latest coronavirus news throughout New York U.S. Attorney General Jeffrey Sessions cited last week’s quadruple murder on Long Island while touting a renewed federal crackdown on the violent street gang investigators suspect was responsible: MS-13.Sessions briefly discussed how he plans to take down the four-decade-old street gang headquartered in El Salvador while speaking Tuesday to the Organized Crime Council, which includes leaders of various federal law enforcement agencies targeting syndicates such as the mafia and international drug cartels.“Just a few days ago, law enforcement believes that members of MS-13 murdered four young men and dumped their bodies in a park on Long Island,” Sessions said while mentioning the case first in a list of recent high-profile violent crimes the gang is suspected of committing.Suffolk County police have said they believed the four victims—three teenagers and a 20-year-old man—were killed where they were found, in a wooded area near the Central Islip Recreation Center, and not dumped there after being killed elsewhere.The AG blamed “years of lax immigration enforcement” for the gang’s membership increasing to 10,000 in the US. He also blamed so-called sanctuary cities—municipalities that don’t comply with federal authorities requests to turn over for deportation criminal defendants that are undocumented immigrants.“We will secure our border, expand immigration enforcement and choke-off supply lines,” Sessions said. “If you are a gang member: We will find you.“We will devastate your networks,” he continued. “We will starve your revenue sources, deplete your ranks and seize your profits. We will not concede a single block or street corner to your vicious tactics.”Sessions’ remarks came hours after President Donald Trump tweeted about MS-13, although Trump didn’t mention LI specifically.“The weak illegal immigration policies of the Obama Admin. allowed bad MS 13 gangs to form in cities across U.S.,” Trump tweeted. “We are removing them fast!”MS-13 was formed in Los Angeles in the early 1980s, now has more than 30,000 members worldwide, according to the Department of Justice.It also came on the same day that Suffolk County Sheriff Vincent DeMarco held a community forum on gangs.“This problem is national in scope, but Long Island has been particularly impacted by gang activity,” DSeMarco said. “All too often people want to pretend this isn’t happening in their neighborhoods, but gangs are everywhere. We need to educate people who are in community about what to look for, and inform them about what to do if they see gang members recruiting outside their premises.”Sessions, who called gangs such as MS-13 “one of the gravest threats to American safety,” signaled that additional law enforcement strategies targeting organized crime are in the works.“Today is just the beginning,” he said. “There will be much more in the coming weeks and months as we seek to eradicate these transnational criminal organizations. Under the Trump Administration and this Department of Justice, there will be no safe quarter for gangs and those that support them.”last_img read more

Keep your money goals on track with a midyear financial checkup

first_imgNot only is summertime a good halfway point between New Year’s money resolutions and year-end tax planning, it’ll also be easier to contact financial experts, tax planners, human resources representatives and other advisors, who are less swamped in the off-season. continue reading » More than one-third of Americans considered a financial resolution for 2016, according to a telephone survey of more than 2,000 Americans by Fidelity Investments. Top goals included saving more, spending less and paying down debt. For these goal-setters, summer is a great time to gauge progress made toward those objectives, experts say. 16SHARESShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblr Fantasizing about reaching your financial goals is easy. Actually accomplishing them is more difficult. “I do think a midyear financial checkup is a great idea because, hopefully, Americans are slowing down a bit,” says Pamela Sandy, a certified financial planner and president of the Financial Planning Association.last_img read more

Lawmakers urge DoD to exempt CUs from MLA changes

first_imgRep. Paul Cook, R-Calif., along with several fellow representatives, sent a letter Wednesday to the Department of Defense urging the department to exempt credit unions from the July 2015 amendments to the Military Lending Act.“It has come to my attention that the July 2015 amendments have caused numerous financial institutions to eliminate products and services, many of which have been relied on by servicemembers and their families,” the letter states. “Of great concern, I have heard from credit unions that they are being forced to cut back on, or eliminate, products that help find solutions for credit for servicemembers and their families that may have few, or much worse, other options.”The letter acknowledges that while the MLA changes “have proven effective in broadening the scope of products and services targeted by … lenders, it has also had the unintended effect of creating barriers for good actors seeking to serve the military with highly regulated and safe products and services. Particularly, I am concerned about the unintended consequences on the thousands of credit unions, serving 110 million consumers including servicemembers.” continue reading » 10SHARESShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblrlast_img read more

Of Facebook jail and the future of fintech

first_img 359SHARESShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblr,John San Filippo John is the co-founder of OmniChannel Communications, Inc., a company that specializes in B2B marketing to community financial institutions. He started out in the savings and loan industry, but wisely … Web: www.omnichannelcommunications.com Details I just finished up 30 days of hard time in Facebook jail. For those who have never earned that badge of honor, that means you’re reduced to a spectator. You can look; you just can’t do anything – except spend money, of course. Facebook would never mess with that.On the plus side, the pain in my wrist cleared up in a couple of days. On the minus side, I realized for the first time that I have many friends whom I know only through Facebook – people I’ve never met in person and perhaps never will. And yet I care for some of them every bit as much as I care for the friends and family I know in my non-virtual life. So it really pissed me off that the Thought Police at Facebook kept me from talking with some very close friends for a whole month.For as long as I can remember, I’ve been hearing that technology is going to make everyone’s life easier. Yet with one mouse click, some dimwit at one of the most dominant tech companies in the world made my life more difficult. Then it occurred to me. Technology has always made my life more difficult.How many hours have I spent troubleshooting computer problems for myself and others? How many times have I had to request a password reset? How many times have I wanted to pitch the remote through the TV screen while trying to navigate my super-deluxe cable service? I don’t know if my life is any better because of technology. It’s just different.That said, I believe we may be on the cusp of an era wherein technology actually does make our lives easier. The problem with technology up to this point is that it has always required you and me to operate some piece of equipment, whether it be the knob on your black-and-white TV, the frustratingly complex timer on your VCR, Excel running on your PC, or the dozens of apps that found their way onto your smartphone. You always had to know what buttons to push.When you look around today, though, it’s easy to see the tremendous advances in technologies like speech recognition, data analytics and artificial intelligence. Deployed properly, these technologies let you do more than bark commands at a computer. They let whatever device is at the other end – your phone, your refrigerator, your smart toilet, or whatever – do some of the thinking for you. The technology becomes predictive and assistive. It … dare I say … makes your life easier.I’ve been in this industry more than 30 years and the technology race has always been about who can add the most features. My online banking app can help me balance my budget. Well, my online banking app can poach an egg. Stop it! We don’t need more “features.” With all the information we’re bombarded with daily, we need to make our lives a little easier. That’s my advice for credit unions and fintech vendors alike. Don’t try to cram more and more features into your products. Instead, create elegant, unobtrusive technology that really makes my life easier. I’m pretty sure I can’t be the only one who wants this.last_img read more

Zagreb and Seoul will be connected three times a week from September

first_imgKorean Air, the largest airline from South Korea that flies to 123 destinations and connects 43 countries, will connect the South Korean capital Seoul and Zagreb three times a week from September this year, until the end of summer and winter flights.The Seoul – Zagreb route will be direct until the end of the summer flight schedule, and from the winter flight schedule the route will return via Zurich (Seoul-Zagreb-Zurich-Seoul). Korean Air will fly to Zagreb in September and October on an Airbus A330-200 aircraft on Tuesdays, Thursdays and Saturdays, departing from Seoul (ICN) at 11:05, arriving in Zagreb at 15:45. Return from Zagreb will be at 17:00 and arrival in Seoul the next day at 10:30.From the winter flight schedule, Korean Air will fly a Boeing 787-9 – Dreamliner aircraft with a capacity of 269 seats. The line will fly on Mondays, Wednesdays and Fridays with departure from Seoul at 11:25, arrival in Zagreb at 14:55, from Zagreb the plane will go to Zurich at 17:00, it will arrive in Zurich at 18:40 from where it will leave at 20: 55 to go to Seoul where he arrives at 15:35. This is the third year-round flight from Zagreb to Asia, namely, Emirates flies once a day to Dubai and Qatar Airways twice a day to Doha.The mentioned line Seoul – Zagreb comes at the time of the tourist “boom” of Zagreb and a significant increase in the number of tourists from South Korea – almost half a million of them visited Croatia last year. In addition, another new line in Zagreb will contribute to an additional increase in Franjo Tuđman Airport traffic, which has been continuously recorded since the opening of the new passenger terminal. Thus, Zagreb Airport recently welcomed this year’s millionth passenger, 13 days earlier than ever in history, and from the beginning of the year until today, a cumulative increase in the number of passengers of 11% has been recorded.last_img read more