Swedish CG’s GeoSwath Multibeam Echosounder Ready for Operation

first_imgBack to overview,Home naval-today Swedish CG’s GeoSwath Multibeam Echosounder Ready for Operation View post tag: Defence View post tag: Defense View post tag: operation View post tag: GeoSwath Kongsberg GeoAcoustics has completed the prestigious Swedish Coast Guard (KBV) project with the installation and full acceptance of a 125 kHz GeoSwath Shallow Water Multibeam echosounder on the fourth and final new-build multipurpose vessel.These vessels, all under Swedish flag, are defined as multipurpose vessels with the possibility of oil recovery, conforming to class GL 100A5 DP0 Oil Recovery Vessel E2 HC-/2 and conforming to the Swedish Maritime Administration for traffic in international voyage service area ‘A’. The vessels are to serve as environmental protection and surveillance ships and will aid the Coast Guard in vessel traffic management, environmental monitoring, border security, fisheries, customs- and police checks at sea.The vessels, named KBV031 to 034, were built by P+S Werften in Wolgast, Germany and were part of a ‘Full Picture’ delivery which involved close collaboration between various departments within Kongsberg Maritime. This long-running project involved Kongsberg supplying the total package for each vessel including: K-Bridge Integrated Navigation system, K-Chief Integrated alarm, monitoring and control system, C-Pos Dynamic Positioning system and GeoSwath Plus Multibeam echosounder. The contract included basic and detailed design of each system, technical layout, delivery, start-up, testing and commissioning.[mappress]Press Release, October 1, 2013; Image: Kongsberg View post tag: Naval Swedish CG’s GeoSwath Multibeam Echosounder Ready for Operation View post tag: Navy View post tag: Multibeamcenter_img October 1, 2013 View post tag: Echosounder View post tag: Ready Industry news View post tag: Coastguard View post tag: News by topic View post tag: Swedish Share this articlelast_img read more

Dead Wood for Wildlife

first_imgA second kind of woodpile for backyard wildlife is a slow-rot pile. Use slower-rotting woodslike oaks. Make an elevated support of stones, bricks or other nonrotting material. This keepstermites out and keeps the wood dryer. A brush pile is a third kind of woodpile for wildlife. It makes a refuge for rabbits and lizardsand a protected feeding area for certain ground-feeding birds. For a finishing touch, place a couple of fat logs or flat rocks on the ground next to the brushpile. You can lift these up from time to time to view the creatures that burrow under them. It’slike taking the roof off part of your little wildlife city to see what’s going on. Of course, these creatures will be just as well off in the upper, and not yet rotten, layers ofyour fast-rot pile. The advantage of a slow-rot pile is that it lasts longer. When a bird scratches in dead leaves looking for insects, it’s feeding in the detritus food chain.Dead things are part of Mother Nature’s bountiful provisions. We humans think of dead things as useless. But in the wild world, many dead things have justbegun to be valuable. This pile makes a refuge for lizards, protected crannies for deer mouse nests and a feedingplatform for chipmunks. Chipmunks like a lot of small crevices for quick escape. Use small-diameter branches to make brush piles. Place a few large logs or rocks on theground first to hold the branches above the ground. These delectable critters and their kin will attract predators like the brown snake and maybethe worm snake. Skinks may lay their eggs in the rotting wood. Kris Irwin found a slimysalamander under dead wood in his Athens backyard. The wood next to the ground will rot fastest. It will make a home for snails, slugs,wood-eating beetles and the larvae of predatory insects like the eyed elater, a click beetle withbig eye spots. Dead wood creates a kind of detritus food chain. Most people think of the grazing food chainas the foundation of life. Examples are the grass-cow-human or the oak leaf-caterpillar-warblerchains. Grazing food chains provide about half the food for the world’s organisms. Detritusfood chains provide the other half. This same ecological principle applies to logged forests, hayfields and other croplands.Harvested environments have somewhat fewer raw materials to work with. The idea is to makea little piece of your yard function like a natural forest floor. As the pile rots down into the earth, keep adding more wood to the top to keep your foodchain supplied with raw materials. Cleaning wood from a backyard carries away useful elements (like carbon, nitrogen, potassiumand phosphorus) that fuel detritus-based food chains. Dead wood is an example. You can use it in woodpiles for wildlife. I like a woodpile outside awindow under a tree. Some people think woodpiles for wildlife are messy. Let the fallen dead leaves accumulate on the ground. These will provide a foraging ground formoles, shrews and other secretive wildlife. For a fast-rot woodpile, just make a stack like a pile of firewood. Fast-rotting species includesweet gum, elm and pine. So what do they do? It seems so absurd — They take all their dead branches out to the curb. Then come the garbagemen. They take them away. Off to a faraway landfill, they say. There the stuff sits, for a lifetime or more, While they buy new fertilizer straight from the store. Those with the money say, “Hang the expense.” But Mother Nature thinks it doesn’t make sense.last_img read more

Pension funds urge Unilever to stick to long-term policy

first_imgSeveral large Dutch pension funds have urged Unilever to refrain from increasing shareholder value at the expense of its long-term policy.In an open letter, the metal schemes PMT and PME, as well as their €114bn asset manager MN, said the multinational company should keep its focus on sustainability and return for the long term.Unilever has said it would investigate how it could increase its shareholder value, after it successfully fought off a takeover bid from US conglomerate Kraft Heinz last week.Kraft Heinz had offered $143bn (€135bn). As of 28 February, Unilever’s market cap on the London Stock Exchange was £114bn (€133.6bn). In the pension funds’ letter, which also received support from the €443bn pension manager APG and insurer ASR, the metal schemes said that “creating real shareholder value meant a long-term focus”.During the past years, Unilever – headed by chief executive Paul Polman – was known for its focus on sustainability.PMT and PME emphasised that, because of this explicit philosophy, the company had been an attractive investment option “as it came with understanding of markets, defining scarcity as well as innovatively responding to changes”.In their opinion, increased annual turnovers and sustainability targets could be combined for lasting shareholder value.However, they conceded that cost reductions as well as divesting less profitable parts of the company could be part of a long-term strategy and sustainability goals.Investors had suggested dividing the company into separate firms for food and household products, the divestment of its margarine division, or a share buyback programme.A spokesman for MN said commenting on specific suggestions would be too early, “as Unilever hasn’t yet announced concrete plans”.Dutch news daily De Volkskrant quoted a spokesperson for ASR as saying: “Sticking to a sustainable course will, based on our experience, lead to equal returns as well a a better world.”An APG spokesman said that the asset manager shared the pension funds’ concerns, but also underlined the importance of a high share value, “as this would make a takeover bid more difficult”.The €199bn asset manager NN IP, which has voting rights of more than 9% in Unilever through preferential shares, declined to comment on the company’s market value.last_img read more

Particulate filter research may enable more fuelefficient vehicles

Provided by Oak Ridge National Laboratory Explore further Researchers are looking to neutrons for new ways to save fuel during the operation of filters that clean the soot, or carbon and ash-based particulate matter, emitted by vehicles. ORNL researchers Todd Toops, Charles Finney, and Melanie DeBusk (left to right) hold an example of a particulate filter used to collect harmful emissions in vehicles. Using neutrons, they are cultivating a better understanding of how heat treatments and oxidation methods can remove layers of soot and ash from these filters, which could lead to improved fuel efficiency. Credit: ORNL/Genevieve Martin A team of researchers from the Energy and Transportation Science Division at the Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) is studying soot and ash collection and removal in particulate filters with neutron imaging, a technique sensitive enough to detect fine layers of material. Using the Neutron Imaging Facility instrument, beamline CG-1D, at ORNL’s High Flux Isotope Reactor (HFIR), they are investigating the structure of particulate layers generated by a series of gasoline fuels.Since 2007, U.S. emissions regulations have required particulate filters to control soot from diesel vehicles. Now, researchers are investigating how to use these filters for gasoline direct-injection engines, which release particles even smaller than those produced by diesel-powered engines. The ORNL team set out to decipher the differences between the ways diesel and gasoline particulates interact with the filters and learn how best to manage filter operation in both categories.”The purpose of our research is enabling more fuel-efficient vehicles, whether that’s understanding how the soot regenerates in diesel vehicles to improve fuel economy, or evaluating how a future gasoline filter would handle soot,” said ORNL’s Todd Toops.Because soot particulates have a carbon base, filters can be restored to their original states by removing carbon-based material through heat treatments and oxidation methods, which researcher Charles Finney said are “comparable to those of a self-cleaning oven.” The removal process, known as “regeneration,” requires additional fuel injection that reduces fuel efficiency.In addition to problems with efficient soot regeneration, the researchers face challenges with ash-based particulates, which cannot be regenerated with heat treatments. These metal oxide particles accumulate in the filter over time and clog some of the filter pores. As a result, the team seeks to understand how ash levels affect soot collection.Their strategy involves successively oxidizing more and more particulate matter within the particulate filters to see how the regeneration progresses and how the ash accumulates.”A key result of our neutron study will be to observe how the particulate matter layer is removed during successive oxidation steps,” said researcher Melanie DeBusk. “The images generated from this work will allow us to look at how the thickness of the layer changes throughout these oxidation stages.” As they continue studying carbon and ash-based particulate interactions, the researchers hope their findings could have profound implications for cleaner, safer vehicles. Citation: Particulate filter research may enable more fuel-efficient vehicles (2018, February 14) retrieved 18 July 2019 from https://phys.org/news/2018-02-particulate-filter-enable-fuel-efficient-vehicles.html Clean soot particle filters This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. read more