US20140033624A1 - Support apparatus for underwater power generator and method for deployment - Google Patents

Support apparatus for underwater power generator and method for deployment Download PDF

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Publication number
US20140033624A1
US20140033624A1 US13/816,032 US201113816032A US2014033624A1 US 20140033624 A1 US20140033624 A1 US 20140033624A1 US 201113816032 A US201113816032 A US 201113816032A US 2014033624 A1 US2014033624 A1 US 2014033624A1
Authority
US
United States
Prior art keywords
support apparatus
accordance
support
stand
ballast
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US13/816,032
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English (en)
Inventor
Drew Blaxland
David Collier
John Ward
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlantis Resources Corp Pte Ltd
Original Assignee
Atlantis Resources Corp Pte Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2010903577A external-priority patent/AU2010903577A0/en
Application filed by Atlantis Resources Corp Pte Ltd filed Critical Atlantis Resources Corp Pte Ltd
Assigned to ATLANTIS RESOURCES CORPORATION PTE LIMITED reassignment ATLANTIS RESOURCES CORPORATION PTE LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: COLLIER, DAVID, WARD, JOHN, BLAXLAND, DREW
Publication of US20140033624A1 publication Critical patent/US20140033624A1/en
Abandoned legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/52—Submerged foundations, i.e. submerged in open water
    • E02D27/525—Submerged foundations, i.e. submerged in open water using elements penetrating the underwater ground
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/52—Submerged foundations, i.e. submerged in open water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • E02B9/08—Tide or wave power plants
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D27/00—Foundations as substructures
    • E02D27/32—Foundations for special purposes
    • E02D27/42—Foundations for poles, masts or chimneys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/10—Submerged units incorporating electric generators or motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/26—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy
    • F03B13/264—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using tide energy using the horizontal flow of water resulting from tide movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/97—Mounting on supporting structures or systems on a submerged structure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the present invention relates generally to support apparatus for supporting underwater power generators and apparatus and methods for the deployment of underwater power generators.
  • Underwater power generators typically include turbines to convert energy of marine and water currents into usable power, usually electrical power. These underwater power generators are generally difficult to install on valuable sites, partly because the sites are deep below the surface of any body of water. Also, difficulties are encountered due to the water currents at those valuable sites being powerful as well as substantially or generally constantly flowing, even though the water current flows may vary in strength and water current flow direction from time to time.
  • the present inventors have developed a new deployment apparatus and method suitable for use with underwater power generators.
  • a support apparatus for support of an underwater power generator having a power generating portion including:
  • the locating region on the or each stabilising footing element includes a male portion for interengagement with a cooperating female portion on a ballast mass.
  • the male portion includes a plinth or ridge or a key extending from and/or along the stabilising footing element.
  • the plinth or key or ridge extends radially and horizontally along the stabilising footing element so that the ballast mass, when mounted on the stabilising footing element, is disposed in a corresponding radial and horizontal orientation.
  • there are provided slanted shoulders depending downwardly and outwardly from a side portion of the key so that they may support the location of a ballast mass having cooperating downward sloping underside portions.
  • the locating assembly includes a stop so that the ballast masses may locate thereagainst when installed on a respective stabilising footing element.
  • the stop may be a shoulder; optionally it is one or more posts extending upwardly from the or each stabilising footing element.
  • the posts are arranged in pairs, two per stabilising footing element, generally or substantially on a common pitch circle diameter having its centre disposed on a stand centre.
  • the or each stabilising footing element may be disposed at a selected distance from the stand centre by a plurality of spokes extending radially from the stand centre.
  • the stabilising footing element may be a plate and may comprise the preferred locating assemblies disposed at various locating assembly regions on the plate distributed from proximal the stand centre to distal the stand centre, at locations near the outer edges of the plate.
  • the stabilising footing element may be an annulus having a main annular body disposed at a distal end of the spokes.
  • the stabilising footing element includes support foot pads disposed at the distal end of the spokes.
  • the spokes are arranged relative to one another so that they are spaced at approximately 120° from one another.
  • One spoke may be longer than another two so that it may provide a stronger support or reaction force in a particular direction.
  • one spoke may be 11 m long while another two may be 8 m long. It will be appreciated that any suitable length can be chosen for the spokes.
  • the support foot pads include grip portions for increasing frictional engagement between the sea bed and the stabiliser.
  • the grip portion includes teeth or ribs in base portions of the support foot pads to bite into the sea bed.
  • the support foot pads include a sole portion which has a convex disposition for increasing frictional engagement with the sea bed, and offering more sea bed/teeth engagement.
  • the stand includes a pylon portion extending upwardly from the stabiliser.
  • the pylon is disposed in a central portion of the stand.
  • the pylon is a hollow cylindrical arrangement suitable for mounting a turbine head thereon.
  • the pylon may also include a rotation mechanism for the turbine.
  • the pylon is tall enough to support a horizontally-disposed axial turbine having blades approximately 12 m in radial length.
  • the turbine head includes a first axial flow blade set arranged on a hub and disposed so that the first blade set is rotated about the hub under the influence of flowing water current from a direction parallel with the sea bed.
  • the ballast masses include a recess or keyway as described above.
  • the keyway is set into a base face and has slanted sides. This facilitates easy positioning as will be appreciated when these ballast masses are being located in the locating region while being lowered from a sea surface by long cables.
  • the ballast masses include upper faces with a similar profile to that of the locating assembly's male or ridged or plinthed portion. This is so that another ballast mass may be located on top of a first ballast mass in a nesting relationship.
  • the locating assembly's stops or posts are sufficiently long to be effective in placing a second or third ballast mass, one atop another.
  • the ballast masses are approximately 200 tonnes in mass and are constructed from steel, concrete or other heavy and dense material and shaped to have negative buoyancy.
  • the ballast masses could be any mass, including 5 tonnes, 10 tonnes, 50 tonnes, 100 tonnes, or other suitable masses.
  • the present invention provides a method of deployment of an underwater power generator, the method including the steps of:
  • the stand is a support apparatus according to the first aspect of the present invention.
  • the method further includes the step of installing a power generating portion onto the stand.
  • the stand includes a power generating portion installed thereon at the time of lowering.
  • the present invention provides a ballast mass for ballasting an underwater power generator or power generator support, the ballast mass including a locating region in one surface for cooperating with a cooperating locating region in a stand of an underwater power generator.
  • the locating region is in the form of a keyway or recess.
  • the ballast mass includes a key or ridge or plinth in a second surface for receiving a cooperating keyway or recess in another ballast mass for providing a nesting relationship between ballast masses.
  • an underwater power generating apparatus including a power generating portion, the power generating apparatus comprising a stand adapted for supporting the power generating portion, the stand comprising a stabiliser including one or more stabilising footing elements adapted to mount one or more ballast masses.
  • a method of installing an underwater power generator including:
  • the stand is a support apparatus according to the first aspect of the present invention.
  • FIG. 1 is an isometric view of an underwater power generator mounted on a support apparatus in accordance with a preferred embodiment of the present invention
  • FIG. 2 is a side elevation view of the underwater power generator of FIG. 1 ;
  • FIG. 3 is a front elevation view of the underwater power generator of FIG. 1 ;
  • FIG. 4 is an plan schematic view of the support apparatus shown in FIG. 1 with the power generating head of the underwater power generator removed for clarity;
  • FIG. 5 is a side elevation view of the support apparatus shown in FIG. 1 with the power generator portion removed for clarity;
  • FIG. 6 is an isometric view of the support apparatus shown in FIG. 1 with the ballast masses and power generator portion removed for clarity;
  • FIG. 7 is an end elevation view of an optional stabilising footing element in accordance with a portion of a preferred embodiment of the present invention, showing a type of optional cooperating stack of ballast masses stacked on top of the footing;
  • FIG. 8 is an end elevation view of another optional stabilising footing element in accordance with a portion of a preferred embodiment of the present invention, showing a type of optional cooperating stack of ballast masses stacked on top of the footing.
  • an underwater power generator generally indicated at 10
  • the underwater power generator 10 including a support apparatus 12
  • the support apparatus including a stand 14 .
  • the stand 14 comprises a stabiliser 16 which includes a stabilising footing element 18 in the form of three support foot pads 20 , 21 , 22 .
  • the stabiliser 16 includes spokes 23 , 24 and 25 having distal ends 26 , 27 and 28 and the support food pads 20 , 21 , 22 are disposed at the distal ends of the spokes 23 , 24 and 25 .
  • the support foot pads 20 , 21 and 22 include locating assemblies 30 on each support foot pad.
  • Each locating region 30 is adapted to locate a monolithic ballast mass 50 on a support foot pad 20 , the mass of the monolithic ballast mass acting to provide reaction support from marine or water currents for the underwater power generator 10 so that it is weighted down.
  • the locating regions 30 include a male portion 31 for cooperation or interengagement with a cooperating female portion 51 in the form of a keyway or channel 52 on the monolithic ballast mass 50 when the monolithic ballast mass 50 is installed on the support foot pad 20 .
  • the male portion 31 includes a plinth or ridge or key 32 which is disposed centrally on the support foot pad 20 and extends along the support foot pad 20 in a radial direction, parallel each spoke 23 , 24 , 25 .
  • the plinth or ridge or key 32 includes sloping ramps or shoulders 33 to facilitate cooperation and interengagement.
  • the monolithic ballast masses 50 will be lowered onto the support foot pads 20 on cables from a height of roughly 30-60 m (at which will be the surface of the body of water). So ramps, sloping shoulders 33 will facilitate the positioning of the or each monolithic ballast mass 50 onto the support foot pads 20 .
  • the locating regions 30 further include stops 34 for locating the monolithic ballast masses 50 thereagainst when installed on a respective stabilising foot pad 20 .
  • the stops 34 may be in the form of posts 35 which are disposed extending upwards from the support foot pad 20 , in pairs, two per support foot pad 20 , each post 35 disposed on a common pitch circle diameter.
  • Each support foot pad 20 includes a grip region 29 on an undersurface 40 for increasing frictional engagement with the sea bed (not shown).
  • the grip region 29 includes teeth or ridges 41 which may increase biting engagement with the sea bed for improved frictional engagement with the sea bed.
  • the undersurface 40 is convex in shape to improve frictional engagement with the sea bed.
  • the stand 14 includes a pylon 15 in the form of a hollow cylinder 17 to support a power generating portion 19 in the form of a turbine head 11 .
  • the turbine head 11 includes a rotatable mounting portion 13 .
  • the monolithic ballast masses 50 further include an upper profiled face portion 56 similar to that of the support foot pads 20 so that the ballast masses 50 may stack in such a way as to nest with each other when resting on one another, and so that upper masses may be located with the same ease as the lower masses were on the support foot pads 20 .
  • the purpose of the key and keyway is also to retain the monolithic ballast masses 50 on the support foot pads and on one another during operation of the power generator 10 .
  • the monolithic ballast masses 50 are approximately 200 tonnes in mass and are constructed from steel, concrete or other heavy and dense material and shaped to have negative buoyancy. However, it should be appreciated that the ballast masses are designed to suit the conditions and local standards and could be any mass, including 5 tonnes, 10 tonnes, 50 tonnes, 100 tonnes, or other suitable masses.
  • the spokes 23 , 24 and 25 extend outwardly from the pylon and are arranged so that they are angularly spaced from one another by approximately 120°.
  • One spoke is slightly longer than the other, as can be seen in FIG. 4 so that that spoke may provide more reaction support for the underwater power generator and may be disposed in a direction of the strongest marine or water current.
  • One installation technique is to lower the support apparatus 12 (shown in FIG. 5 ) to the sea bed in a first movement and the power generating head lowered and installed on the support apparatus in a second movement. The ballast masses are then lowered onto the pads 20 .
  • the stand and power generating head can be lowered together and the ballast masses then applied to the stand foot pads 20 .
  • a further option for installing the power generator is to lower the entire apparatus 10 , including installed ballast masses, from the surface of the body of water to the sea floor in one lift (or lowering operation). That is, any combination of lifts (lowering operations) which is suitable for the size and mass of the power generation apparatus may be utilised.
  • ballast masses 50 when being installed, will, using one example installation technique, be lowered on cables (not shown) from above to a position a few metres above the support foot pad 20 and radially a selected distance away from the support foot pad 20 . Then, wall 55 of the ballast mass 50 will be brought into abutment with the stop 34 , then lowered further so that the key 32 interengages with the keyway 52 . Any misalignment of the keyway 52 of the ballast mass 50 with the key 32 will be resolved by the sloping shoulders or ramps 33 . The power generating head is then installed on the pylon.
  • the stabilising foot pads 120 , 121 and 122 optionally include a female locating region 130 as shown in FIGS. 7 and 8 .
  • the ballast masses 150 , 250 in these options include a male portion 151 , 251 which cooperates with the female locating region 130 by extending into when resting thereon.
  • the upper surfaces of the ballast masses 151 and 251 are similarly female so as to receive further ballast masses in a stack as shown in FIGS. 7 and 8 .
  • the upper surface of a top ballast mass may be flat as shown.
  • the female locating regions 130 may have sloping shoulders to facilitate positioning.
  • the male locating regions 151 may similarly be cooperatingly tapered.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Oceanography (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Foundations (AREA)
US13/816,032 2010-08-10 2011-08-09 Support apparatus for underwater power generator and method for deployment Abandoned US20140033624A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AU2010903577 2010-08-10
AU2010903577A AU2010903577A0 (en) 2010-08-10 Support Apparatus and Method for Deployment
PCT/AU2011/001009 WO2012019224A1 (en) 2010-08-10 2011-08-09 Support apparatus for underwater power generator and method for deployment

Publications (1)

Publication Number Publication Date
US20140033624A1 true US20140033624A1 (en) 2014-02-06

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US13/816,032 Abandoned US20140033624A1 (en) 2010-08-10 2011-08-09 Support apparatus for underwater power generator and method for deployment

Country Status (9)

Country Link
US (1) US20140033624A1 (ja)
EP (1) EP2603641A4 (ja)
JP (1) JP2013535600A (ja)
KR (1) KR20130102048A (ja)
CN (1) CN103221616A (ja)
AU (1) AU2011288967B2 (ja)
CA (1) CA2807726A1 (ja)
CL (1) CL2013000385A1 (ja)
WO (1) WO2012019224A1 (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110303807A1 (en) * 2009-03-09 2011-12-15 J. Van Walraven Holding B.V. Roof support system
US8920200B2 (en) 2009-10-27 2014-12-30 Atlantis Resources Corporation Pte Connector for mounting an underwater power generator
US9073733B2 (en) 2011-05-10 2015-07-07 Atlantis Resources Corporation Pte Limited Deployment apparatus and method of deploying an underwater power generator
US9410559B2 (en) 2014-01-29 2016-08-09 Hydrostor, Inc. Energy-accumulation apparatus
US9416796B2 (en) 2014-01-29 2016-08-16 Hydrostor Inc. Energy accumulation apparatus
US9784413B2 (en) 2014-10-29 2017-10-10 Hydrostor Inc. Methods of deploying and operating variable-buoyancy assembly and non-collapsible fluid-line assembly for use with fluid-processing plant
US9939112B2 (en) 2014-10-29 2018-04-10 Hydrostar Inc. Variable-buoyancy assembly and non-collapsible fluid-line assembly for use with fluid-processing plant

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FR3001742B1 (fr) * 2013-02-04 2015-06-19 Fonderie Et Mecanique Generale Castelbriantaise Fmgc Chassis d'hydrolienne comprenant un ensemble de lestage et ensemble de lestage pour un tel chassis
DE102013219973A1 (de) * 2013-10-02 2015-04-02 Voith Patent Gmbh Unterwasserkraftwerk
KR102048726B1 (ko) * 2017-07-14 2019-11-26 한국해양과학기술원 와유기진동 에너지 추출장치
CN108194250A (zh) * 2017-12-28 2018-06-22 张建洲 一种水流发电装置
CN109869266A (zh) * 2019-04-08 2019-06-11 宁波润爵科技有限公司 一种小型水下发电机
CN109854433B (zh) * 2019-04-08 2020-11-10 山东博源精密机械有限公司 一种方便安装的水下发电机
GB2589118B (en) * 2019-11-21 2023-03-29 Nova Innovation Ltd A tidal turbine with a seabed support structure

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110303807A1 (en) * 2009-03-09 2011-12-15 J. Van Walraven Holding B.V. Roof support system
US9404264B2 (en) * 2009-03-09 2016-08-02 J. Van Walraven Holding B.V. Roof support system
US8920200B2 (en) 2009-10-27 2014-12-30 Atlantis Resources Corporation Pte Connector for mounting an underwater power generator
US9073733B2 (en) 2011-05-10 2015-07-07 Atlantis Resources Corporation Pte Limited Deployment apparatus and method of deploying an underwater power generator
US9410559B2 (en) 2014-01-29 2016-08-09 Hydrostor, Inc. Energy-accumulation apparatus
US9416796B2 (en) 2014-01-29 2016-08-16 Hydrostor Inc. Energy accumulation apparatus
US9784413B2 (en) 2014-10-29 2017-10-10 Hydrostor Inc. Methods of deploying and operating variable-buoyancy assembly and non-collapsible fluid-line assembly for use with fluid-processing plant
US9939112B2 (en) 2014-10-29 2018-04-10 Hydrostar Inc. Variable-buoyancy assembly and non-collapsible fluid-line assembly for use with fluid-processing plant

Also Published As

Publication number Publication date
JP2013535600A (ja) 2013-09-12
CN103221616A (zh) 2013-07-24
CA2807726A1 (en) 2012-02-16
AU2011288967B2 (en) 2012-09-20
EP2603641A1 (en) 2013-06-19
CL2013000385A1 (es) 2013-07-26
EP2603641A4 (en) 2014-07-23
WO2012019224A1 (en) 2012-02-16
KR20130102048A (ko) 2013-09-16
AU2011288967A1 (en) 2012-08-30

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