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A quantitative estimate of the ducted whistler power within the outer plasmasphere

first_imgFrom a statistical study of ductedwhistlers observed at Halley, Antarctica, in 1996, which had propagated on paths in the range L=2.5–4.5, we report mean occurrence rates, numbers of components per whistler, intensities, etc. for night and day conditions and in different seasons at solar minimum. We found an average whistler rate of and 3 components per whistler. Received whistler amplitudes were measured as a function of frequency and were in the range 2–40 fT, typically 10 fT at 4 kHz. Combining these results with a propagation model, we estimate mean whistler duct output powers to be around 1–10 mW, (≃0.1–1 mJ per whistler in the 3–5 kHz band). Inferred typical equatorial wave fields for ductedwhistlers of 0.3 pT led to estimated radiation belt lifetimes for 1–100 keV electrons due to gyroresonance with ductedwhistlers of 2×106 days. This compares with published lifetimes due to plasmaspheric hiss of order 105 days or less, and we conclude that, on average, lightning which enters and propagates in magnetospheric ducts, although known to cause pitch angle scattering and precipitation of trapped electrons, does not significantly affect the radiation belt fluxes in a statistical sense. We have compared our results with those from a similar study by Burgess and Inan (J. Geophys. Res. 98 (1993) 15,643–15,665). In a separate investigation of multi-component whistlers received in winter at quiet times, using the same methodology, we have found that the duct output power generally decreases with increasing L. This is consistent with previous theoretical work and parallels a similar experimental conclusion with respect to higher-frequency whistler-mode signals from VLF transmitters.last_img read more

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Frigate Admiral Gorshkov to Represent Russia at IMDS-2013?

first_img View post tag: Gorshkov Frigate Admiral Gorshkov to Represent Russia at IMDS-2013? View post tag: IMDS-2013 View post tag: represent Share this article View post tag: Navy Project 22350 frigate Admiral Gorshkov may become a major Russian exhibit at the International…[mappress]Source: Russian Navy, November 15, 2012; Image: Flot November 15, 2012 View post tag: Naval View post tag: Russia Back to overview,Home naval-today Frigate Admiral Gorshkov to Represent Russia at IMDS-2013? View post tag: News by topic View post tag: Frigate Industry news View post tag: Admirallast_img read more

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FGS Niedersachsen Sailors Get Voting Papers Onboard

first_img View post tag: Defense Share this article View post tag: Naval September 18, 2013 View post tag: get View post tag: sailors View post tag: News by topic View post tag: FGS View post tag: voting Back to overview,Home naval-today FGS Niedersachsen Sailors Get Voting Papers Onboard center_img Training & Education View post tag: Defence On Wednesday 11 September, German frigate FGS Niedersachsen received a special kind of air mail, when a Spanish Maritime Patrol Aircraft parachuted in voting papers for 20 sailors on board for the forthcoming parliamentary elections in Germany.The warship, which has 230 men and women on board is currently doing counter piracy patrols off the Somali coast as part of the European Union Naval Force.Most of the sailors had received their election forms when the ship was alongside Djibouti earlier in the month, however, some of the voting forms did not arrive in time before the ship had to return to her sea patrols.So that all the sailors would be able to cast their vote on election day, a solution was quickly found, when the Spanish maritime patrol aircraft stepped in to help.The Spanish maritime patrol aircraft, which is stationed in Djibouti placed the 20 election forms in to a specially designed orange cylinder and flew out to the ship. When it was just 200 metres away, the cylinder was dropped in to the sea and it was quickly picked up by the ship’s boarding team.Once the election forms were filled in, they were sent back to Germany in time for the elections.[mappress]Press Release, September 18, 2013; Image: EU NAVFOR View post tag: Niedersachsen View post tag: Papers View post tag: Onboard View post tag: Navy FGS Niedersachsen Sailors Get Voting Papers Onboardlast_img read more

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Australian, US Navy start diving exercise in Sydney

first_imgBack to overview,Home naval-today Australian, US Navy start diving exercise in Sydney View post tag: US Navy View post tag: Dugong View post tag: Royal Australian Navy November 7, 2016 Authorities Share this article Australian, US Navy start diving exercise in Sydney Navy divers from Australia and the United States are set to start training activities in Sydney on November 8 to improve their skills and inter-operability.Exercise Dugong 16 brings together more than 50 specialist divers and support staff for two weeks of training on underwater construction techniques, underwater damage repair, search and salvage, shipping hazard removal, medical and communication techniques.Commander of the Australian mine warfare clearance diving task group commander Etienne Mulder, said the annual exercise provided Australian and US Navy divers with a chance to share knowledge and develop their skills.“Maintaining freedom of navigation and movement through sea lanes is vital to Australia as 98 per cent of our trade by volume travels by sea,” Commander Mulder said.“It’s vital therefore Navy divers have the broadest possible range of skills so they can respond to any challenge or threat.”Eighteen divers from the US will be conducting continuation training and demonstrations in underwater welding, thermal cutting, underwater chainsaw and grinding, search techniques utilising underwater sonar, construction and simulated deep diving and recompression chamber drills.Australian Navy divers participating in Dugong 16 will be drawn from clearance dive team one based at HMAS Waterhen and clearance dive team four from HMAS Stirling in Western Australia.last_img read more

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Airport Authority Names Nate Hahn New Director

first_imgThe Evansville Vanderburgh Airport Authority Board of Directors have appointed a new airport executive director.Effective January 1st, 2019 Nate Hahn will replace Doug Joest. December 31st, Joest will be stepping down after eight years.Joest began his career at EVV as a finance manager in 2007 and was later named executive director in 2010. During his tenure, he is credited for many milestone airport improvements.Joest played a key role in securing funding from the state’s Regional Cities as part of a $20 million terminal renovations project.Engelbrecht said the board of directors has been working with Joest and Hahn on a succession plan in anticipation of Joest’s retirement.Hahn is a graduate of Purdue University’s aviation program. The Indiana native started his career Midland, Texas, before joining EVV in 2011. FacebookTwitterCopy LinkEmailShare Airport Authority Names Nate Hahn New DirectorAUGUST 31ST, 2018 Tyrone MORRIS EVANSVILLE, Indianalast_img read more

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Bob Dylan Becomes First Songwriter To Win The Nobel Prize In Literature

first_imgFirst and foremost, we want to extend a heartfelt congratulations to Mr. Bob Dylan for this incredible achievement. For the first time in Nobel Prize history, the Academy has awarded the Literature prize to a songwriter. No songwriter is more deserving of such an honor than the great Bob Dylan.Dylan was awarded the prize for “for having created new poetic expressions within the great American song tradition,” according to the Academy. He is the first American to receive the award since Toni Morrison in 1993, and also the first songwriter to achieve such an honor.The prize is given to someone who shows a lifetime of writing achievements, and Dylan certainly fits that mold. Though a number of authors and poets were favored to win the award, Dylan’s name has always been mentioned in those circles. Now, it seems, the times they are a-changing.A full biographical note from the Swedish Academy highlights Dylan’s extensive career, referring to him as an “icon.” With his works published as lyrical volumes and dozens of albums to his name, it’s no wonder Bob Dylan was awarded such a prize.Congratulations again to Mr. Bob Dylan! Fans can catch him performing at Desert Trip tomorrow night, for what is sure to be a very special performance.last_img read more

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Professors discuss options for Syria

first_imgSyrian leader Bashar al-Assad agreed to destroy the troubled Middle Eastern country’s chemical weapons Tuesday in a deal brokered by Russian Prime Minister Vladimir Putin.  Professor David Cortright of the Kroc Institute for International Peace Studies, who moderated Tuesday’s panel discussion on the United States’ role in the Syrian crisis, said this development proves the use of force against Syria would have been the wrong decision for the United States. “I hope what we learn from this is that diplomacy can be effective, that the solution to this turns out to be a diplomatic agreement, not military strikes,” Cortright said. “Although … the threat of military strikes helped to catalyze the diplomatic action.” Cortright said the United States should realize that Russia could be a helpful ally in dealings with the Middle East. “We can benefit from cooperating with Russia,” he said. “Everyone was sort of bashing Russia these days, but as much as we may disagree with some of Mr. Putin’s policies, the fact of the matter is that Russia’s cooperation can be very important in solving some of these difficult challenges.”  Another difficult challenge Russia could help solve is the nuclear problem in Iran, Cortright said. “It’s very significant that Iran expressed support for the Russian deal right away; within four or five hours of when it was announced, the Iranian foreign ministry said, ‘We support this proposal,’” he said. “That sent a message to Assad that … his two main patrons basically said, ‘Here’s the deal.’ He really had no choice but to accept it.”  Cortright said although the chemical weapons deal negates the possibility of immediate United States military intervention in the region, Congress may pass a resolution to discuss the use of force at a later date if Syria reneges on its promise.  “Senator [Harry] Reid made a speech just the other day … and that’s basically the veiled message that he’s making – that we need to keep the potential threat of military action still in the background, not take it off the table entirely,” Cortright said.  In the meantime, Cortright said he thinks it’s the United Nations’ job to make sure Syria sticks to its chemical weapons agreement. “I’ve advocated for a long time that the U.N. should be front and center in this whole question,” he said. “The administration initially mishandled the U.N. because the first proposal they made to the U.N. was military action. There was no way Russia was going to support that, or Argentina, or China; several countries on the [Security] Council said ‘no’ right away. So that was a mistake. But now, Secretary [of State John] Kerry, apparently, and the [Obama] administration and certainly the French, have said we need to go to the U.N. now to get the U.N. to implement the Russian deal.” Cortright said the U.N. is most qualified to ensure Syria disposes of its chemical weapons.  “I’m sure we will insist upon on-the-ground monitoring to make sure this is really happening, and that’s a role for the U.N.,” he said. “The Organization for the Prohibition of Chemical Weapons (OPCW) – they have the experts … It’s an organization that was created through a U.N. process, although it’s an independent organization. But it reports to the U.N., so the U.N. working with the OCPW will need to play a key role in monitoring and implementing this resolution.”  Cortright said the Catholic Church has been vocal in its opposition to military interference in Syria, and its hierarchy is most likely pleased with the diplomatic deal and the role of the U.N. in implementing it. “The Church position is that war and military action is always a defeat for humankind. It’s always a violation of God’s desires for humans to be more loving and more godlike in our lives,” Cortright said. “They had this prayer vigil at the Vatican this weekend … that seemed almost like a peace rally, and the Pope stayed for most of it, and it went well into the night.” The United States Conference of Catholic Bishops also released two letters urging peaceful solutions, one addressed to Congress and the Obama Administration and one addressed to the leaders of the G20 Summit, Cortright said.  Cortright said he believes the Church is happy that military intervention in Syria is off the table, at least for now. “I haven’t seen yet a statement from the bishops or the Vatican, but I suspect that everyone’s relieved and is perhaps believing that they’re prayers were probably answered,” he said.last_img read more

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SGA, RHA join efforts in hosting lip sync battle

first_imgPaths between the Student Government Association (SGA) and Residence Hall Association (RHA) may not cross often in everyday campus life, but they came together to throw a lip sync battle Wednesday.Big Belle Little Belle co-chair and senior Moira LeMay said the battle, co-sponsored by Big Belle Little Bell and RHA, was created “to give girls something to do after classes, take a break from studying and just hang out.”RHA co-president of events Lucia O’Quinn said she knew Big Belle Little Belle had an interest in hosting an event featuring singing. Sine RHA typically hosts a karaoke event, the senior thought to combine the two groups’ ideas.“Big Belle Little Belle, they wanted to do something for their bigs and their littles, and I was thinking for RHA karaoke we did something 90s themed, and this event just became a kind of 90s themed lip sync battle type thing,” she said. O’Quinn found that the event was an instrumental step to “getting RHA and SGA to work together.”“I hope that people realize that even though we’re two separate organizations, we really work together because there had been problems in the past between them,” O’Quinn said.LeMay said the event was “something [they] might want to do [again] later on.”Big Belle Little Belle has around 200 members, so committee organizers worked to make sure they had the appropriate space to accommodate their lip sync battles, Big Belle Little Belle co-chair Sarah Austin said.“We had it in [Carroll Auditorium] so that we can give an opportunity for the bigs and the littles to come to an event together,” the junior said. “In general the space was really good for us just because we have a really large club and we couldn’t predict how many girls would come. So in the event that they all did come, they’d fill the seats.”The event started with an icebreaker, and once the girls were ready to battle, prizes were theirs to win.“We started off with a group dance, so we did the Cupid Shuffle. That way a lot of girls felt comfortable getting up because if we’re being goofy they feel like they can be goofy, too,” Austin said. Prizes for winners included large makeup bags, blankets, face masks, beauty products, coffee mugs and gift cards for Uber, Starbucks and Chick-Fil-A. “I really enjoyed seeing the bigs and littles coming together,” Austin said. “[One little and big pair] did matching shirts and [performed] ‘You’ve got a friend in me’ from Toy Story, and had a little dance together. It was really cute, so seeing them making friends, interacting with the other girls were really good.”Competitors were not limited to big and little pairs. Some of the committee members performed as well. Committee members from SGA and RHA reiterated their joint effort of the event by performed together. By the end of the night, O’Quinn said the event was meant to be a place for students to let go of work and have an enjoyable evening.“I think just that it’s a place for inclusivity for all students and just to have fun,” she said. “You know it’s not just all about school work and college, you have to have some type of social life.”Tags: Big Belle Little Belle, Lip Sync Battle, Residence Hall Association, Saint Mary’s College, Student Government Associationlast_img read more

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Colorado Coal Industry Sees Sharpest Drop in 23 Years

first_imgColorado Coal Industry Sees Sharpest Drop in 23 Years FacebookTwitterLinkedInEmailPrint分享Christopher Coats for SNL:Facing national and state pressure, coal mines in Colorado reported the lowest production in 23 years in 2015, with 18.7 million tons for the period. The state’s output marked an 18.5% drop from 2014 and a sharp drop from the almost 40 million tons it produced in 2004.According to data provided by the Colorado Division of Reclamation, Mining and Safety, significant drops in production over 2014 were seen at a number of local mines, including Bowie Resource Partners LP’s Bowie No. 2 mine, where production fell from 2.4 million tons in 2014 to 1.6 million tons in the last year.Peabody Energy Corp.’s Foidel Creek mine fell even further, dropping about 2.5 million tons from 2014 to end the year with 4.1 million tons. The mine, also known as the Twentymile mine, once stood as the most productive mine in the basin, but it has seen output steadily decline in recent years.Arch Coal Inc.’s West Elk mine also saw a year-over-year drop of about a million tons, ending 2015 with 5.2 million tons in production.The state’s continued slide came despite no mine closures during the year, though a few remain idled, including Elk Creek and New Elk.Full article ($): Coal production in Colorado tumbles to 23-year low in 2015last_img read more

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3 options for consolidating your debt

first_img 534SHARESShareShareSharePrintMailGooglePinterestDiggRedditStumbleuponDeliciousBufferTumblr,John Pettit John Pettit is the Managing Editor for CUInsight.com. John manages the content on the site, including current news, editorial, press releases, jobs and events. He keeps the credit union … Web: www.cuinsight.com Details Debt can be scary, and debt consolidation is a hopeful option for many. The idea of putting all of your debt in one place, with one monthly payment can be a real relief.  But what are your best options for consolidating your debt? Here are three to consider…A balance transfer credit card: If you’re looking at this option, you’ll want to first make sure that you find a card that will have a high enough limit to contain all of the debt you’re wanting to put together. You’ll probably be able to find one with a zero percent introductory rate, which is ideal for paying off debt. If you have $3,600 of debt, and an introductory rate of zero percent for 18 months, you can pay 200 bucks a month for 18 months, and be completely debt free without paying a cent of interest. If this option interests you, here are some pros and cons to consider.A home equity loan: After the introductory rate on a balance transfer card, the interest rate can be pretty high. The main benefit of a home equity loan, is that the interest rate will be a whole lot lower. Just be careful if you go this route: If you default on the loan, you’re putting your home at risk. If this option sounds better to you, here are some things to think about before you take the plunge.A personal loan: If you don’t like the idea of risking your home (or any other form of collateral), then a personal loan might be the best option for you. If you’ve got a good credit score, you can probably qualify for the loan, and if you’ve got a great credit score, you’ll probably get an even better interest rate. Plus, you can get the loan through your credit union, so you’ll have a lender that has your back. If this is the option for you, ask your credit union about any debt consolidation loans they have available.last_img read more

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