EP3350627A1 - Schallwandleranordnung schleppsonar winde schleppschiff und verfahren zum ausbringen und einholen - Google Patents
Schallwandleranordnung schleppsonar winde schleppschiff und verfahren zum ausbringen und einholenInfo
- Publication number
- EP3350627A1 EP3350627A1 EP16781661.0A EP16781661A EP3350627A1 EP 3350627 A1 EP3350627 A1 EP 3350627A1 EP 16781661 A EP16781661 A EP 16781661A EP 3350627 A1 EP3350627 A1 EP 3350627A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- winch
- sound
- transducer arrangement
- water
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000008878 coupling Effects 0.000 claims abstract description 106
- 238000010168 coupling process Methods 0.000 claims abstract description 106
- 238000005859 coupling reaction Methods 0.000 claims abstract description 106
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 74
- 230000005236 sound signal Effects 0.000 claims abstract description 29
- 238000004804 winding Methods 0.000 claims description 5
- 238000001514 detection method Methods 0.000 description 6
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000004807 localization Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
- G01V1/3843—Deployment of seismic devices, e.g. of streamers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/56—Towing or pushing equipment
- B63B21/66—Equipment specially adapted for towing underwater objects or vessels, e.g. fairings for tow-cables
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
- G01V1/201—Constructional details of seismic cables, e.g. streamers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/16—Receiving elements for seismic signals; Arrangements or adaptations of receiving elements
- G01V1/20—Arrangements of receiving elements, e.g. geophone pattern
- G01V1/201—Constructional details of seismic cables, e.g. streamers
- G01V1/202—Connectors, e.g. for force, signal or power
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/38—Seismology; Seismic or acoustic prospecting or detecting specially adapted for water-covered areas
- G01V1/3817—Positioning of seismic devices
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Definitions
- the invention relates to a sound transducer arrangement for receiving and / or transmitting water sound signals, the sound transducer arrangement having a first antenna with a plurality of sound transducers and a first trailing cable and wherein the sound transducer arrangement can be pulled in the water on a tugboat. Furthermore, the invention relates to a towing sonar for receiving and / or transmitting
- Schleppsonare usually have a buoyancy-neutral receiving antenna with hydrophones whose depth (drag) is set by the length and / or density of the towed cable and the speed of the towboat.
- the running depth is always a compromise between the coverage of the water column and the maximum horizontal detection range.
- thermocline acts as a specular horizontal partition for sonar tracking, deflecting the water sound into a series of curves that curve to the water surface and seabed.
- sonars can only locate on the side of the thermocline where they are located. Convergence zones are created, in particular, by bending sound waves in the water in such a way that blind zones and zones with compression occur. While the compression effect occasionally allows for higher detection ranges, the blind or shadow zones prevent continuous detection.
- thermocline can be circumvented by positioning two physically separate sonars above and below the thermocline, respectively.
- a submarine deliberately places its towed sonar on one side of the thermocline, while the submarine itself, with its sonar attached to the fuselage, remains on the other side of the thermocline where it locates.
- blind or shadow zones in convergence phenomena can also be avoided and / or exploited.
- the disadvantage here is the high space and weight requirements on board the towboat.
- the object of the invention is to improve the state of the art.
- a sound transducer arrangement for receiving and / or transmitting water sound signals, wherein the acoustic transducer assembly comprises a first antenna with a plurality of sound transducers and a first trailing cable and wherein the transducer assembly is pulled by a towed ship in the water, and the first antenna and / or the first tow cable a coupling element or more
- thermocline The fact that two antennas can be connected via coupling elements and separated again, they are used separately above and below a thermocline and provide better coverage of the water column in the speed of sound profile. Thus, a localization can be carried out especially in the case of a pronounced thermocline and / or convergence zone.
- the spacing of the antennas relative to one another can be set via the number and / or the positions of the decoupled (opened) coupling elements and / or via the pulling speed of the towboat.
- Coupling elements is a variation of the relative running depths of the antennas allows each other. Opening the coupling elements increases the distance between the antennas in the water column.
- An essential idea of the invention is based on the fact that on board a towed vessel, a first antenna is connected to a tow cable via coupling elements with a second antenna with a second tow cable and a part of the coupling elements is opened in the water, so that the two antennas are spatially separated and are positioned at different running depths when towing.
- the connected antennas and trailing cables are handled together on board and require less space.
- a "sound transducer arrangement” is in particular an arrangement of several sound transducers for receiving and / or transmitting water sound signals
- Sound transducer arrangement may in particular be a towed antenna and / or a towed sonar.
- a towed antenna and / or a towed sonar may in particular be a towed antenna and / or a towed sonar.
- an antenna or multiple antennas includes the
- Sound transducer arrangement in particular also a tow cable or several tow cables.
- Water sound signals are understood in particular sound signals that are emitted and / or received in the water.
- An "antenna” is in particular a technical device for transmitting and / or receiving sound waves, an antenna being, in particular, a liquid and / or gel-filled tubular casing in which a plurality of spaced electro-acoustic transducers is strung.
- the antenna has passive sound transducers, such as hydrophones, which receive water sound signals.
- the antenna has, in particular, an attenuation module or several attenuation modules.
- An antenna is, in particular, a towed antenna For extending the antenna at the end floating freely in the water, an end piece can be arranged there, in particular.
- a "sound transducer” is in particular a device for transmitting and / or receiving acoustic underwater sound signals, such as those used in active and / or passive sonars
- the sound transducer receives underwater sound signals and converts these into an electrical signal for further processing (receiver) and / or converts an electrical signal into an acoustic signal, the latter being transmitted (transmitter)
- hydrophones are used underwater as sound transducers to record underwater sound, in which a hydrophone converts the water sound into an electrical variable corresponding to the sound pressure
- Use under water is used in particular a frequency range between about 10Hz and 1MHz.
- a "towing cable” (also referred to as a cable or towing cable) is in particular a cable which initiates a mechanical process by train, in particular the tow cable transmits the traction of the towed vessel to a towed aerial so that it is towed in the water
- the towing cable also has one or more lines for data exchange and / or for energy transmission.
- a "coupling element” (also called connecting element or coupling element) is in particular an element for the detachable, reversible connection of two antennas and / or two trailing cables and / or one antenna and one trailing cable
- a coupling element may, for example, be an envelope which is displaceably arranged on both antennas,
- the coupling element may comprise an electromagnet, so that the connection can take place with a second antenna or the coupling element can be arranged dividedly on both antennas for example, arranged on both antennas components of the electromagnetic
- the coupling element may be arranged as an elongate element along the antenna and / or the towing cable or a plurality of coupling elements may be arranged at a predetermined distance along the length of the antenna and / or the towing cable at different positions.
- the coupling elements may in particular be equally spaced along the antenna and / or tow cable or have different distances.
- the coupling elements of two antennas to be connected and / or trailing cables are each arranged opposite one another on the same length, so that the antennas and / or trailing cables connect flush and no loops are formed by unconnected lengths.
- the coupling elements can assume different shapes.
- a coupling element can be arranged as a uniform ring around a towed antenna and / or a trailing cable and / or the coupling element itself has an irregular shape.
- the coupling element may be flattened at the direct connection point and / or the coupling element may have on the opposite side of the connection point more material and / or more density and / or a different shape and / or a different orientation of the magnetic field, so that this side of the antenna and / or tow cable is pulled down.
- the orientation of the antenna and / or tow cable in the water can also be influenced by the shape of the coupling element.
- reversibly connectable is meant, in particular, that the connection of the antennas and / or the trailing cable via a coupling element or a plurality of coupling elements is reversible, so that the connection can be released again, in particular the coupling elements can be repeatedly connected and disconnected.
- Sound transducer assembly has the coupling element or the coupling elements a switching element, in particular an electromechanical switch, on.
- the coupling element or the coupling elements can be selectively opened or closed, so that the antennas and / or the tow cables connect or disconnect.
- the switching element can be controlled and switched by a controller.
- some of several coupling elements can be selectively opened and / or closed.
- a "switching element” is in particular a component which produces or separates an electrically conductive connection (switching contact) by means of two electrically conductive materials or a semiconductor component, whereby in particular the switching element causes a coupling element to open or close, so that two antennas and / or two trailing cables and / or an antenna and a trailing cable are disconnected and / or connected
- the switching element can be controlled by a controller, in particular by a control unit of a sonar and / or the towboat.
- the transducer assembly In order to use two antennas in the water at different running depths, the transducer assembly to a second antenna and / or a second trailing cable, so in the case of connection when opening the coupling element or more of the coupling elements, the first antenna and the second antenna in the water spaced are.
- the coupling elements are attached to the antennas and trailing cables in such a way that the thicker and shorter triplet or quadlet antenna is positioned centrally above the thin line array.
- Sound transducer assembly the sound transducer assembly on a third antenna and / or a third trailing cable and / or a fourth antenna and / or a fourth trailing cable and / or a fifth antenna and / or a fifth trailing cable and / or other antennas and / or further trailing cable.
- both an optimal "illumination" of the water column can be achieved while avoiding blind and shadow zones as well as an improvement in the maximum horizontal detection range can also be achieved by using multiple antennas of different types and / or with different frequency ranges
- the antennas and / or the trailing cables have different lengths and / or different diameters. By different lengths, a shorter antenna can be used with a shorter trailing cable at a lower depth and connected to a longer antenna and / or its associated longer trailing cable.
- both antennas of different lengths and antennas with different transducers can be used so that the antennas can cover different frequency ranges.
- the trailing cables In order for the antennas to be positioned at different depths from an averaged water surface when the coupling element is open or several opened coupling elements, the trailing cables have different masses and / or different densities.
- the spacing of the antennas and their positioning in the water column can be set directly via the mass and / or the density of the tow cables. Consequently, a lighter cable is used for an antenna which is to be aligned in a shallower water depth than for the further supply to the second antenna in a larger water depth. This also ensures that separate the different antennas when opening the coupling elements. If a coupling element, which connects a heavy towing cable with a light trailing cable, opens while the towboat is in motion, the water resistance on the light trailing cable and the associated antenna acts as an opening moment.
- the coupling elements have different shapes, in particular asymmetrical shapes.
- each asymmetrical coupling element and / or the mechanical influences of the asymmetric shape and / or the orientation of a magnetic field in magnetic coupling elements and / or the distance of the coupling elements is used to each other.
- the coupling elements at the opposite sides of the connection points in the first antenna each more mass and the second antenna less mass, so that these pages are always aligned due to the masses in the first antenna down and the second antenna upwards.
- the connection and release of the coupling elements can be improved by an asymmetrical shape.
- this asymmetry may compensate for different diameters of the trailing cables.
- Towing and / or unwindable form the antennas and the trailing cable with a closed coupling element or closed coupling elements a connected tow line.
- a "winch” is in particular a device with which from a towed vessel a towed antenna and / or several towed antennas and / or a towing cable and / or several towed cables and / or a connected towed strand is discharged into the water and / or from the
- a winch has a rotatable winch drum for winding and / or unwinding a connected towline and / or an antenna and / or a tow cable.
- a "winch drum” (also called a reel spool or a cable reel) is in particular a reel or reel on which or which material, in particular a round cross section, is rolled up and / or unrolled, in particular the reel or reel has the two outer sides
- a winch drum in particular a connected tow line, an antenna, a towed sonar and / or a tow cable is opened and / or unrolled.
- the object is achieved by a towing sonar for receiving and / or transmitting water sound signals, wherein the towed sonar comprises a previously described sound transducer arrangement.
- a high-quality location of water sound sources is also possible with a thermocline and / or convergence zone.
- a "towed sonar" is in particular a device for locating objects in space and under water by means of emitted and / or received sound pulses, in particular a towed sonar is used for seismic surveying of the seabed and / or for locating objects and vessels under water.
- a towed sonar may be an active sonar, which itself emits sound signals and receives its reflected signals, or a passive sonar, which has only one receiving part
- a towed sonar can also Be part of a bistatic sonar, where the transmitter is on a different platform or in an antenna other than the receiver.
- the towed sonar is associated with a plurality of antennas and / or trailing cables, which can be connected via coupling elements.
- the object is achieved by a winch for a towed ship, wherein by means of the winch a previously described transducer arrangement and / or a previously described towed sonar can be wound up and / or unwound.
- a guide device is associated with the winch, so that when deploying the antennas and / or the respectively associated towing cables are brought into mutual proximity to one another at a spatial distance and / or during retrieval.
- connecting and / or decoupling of the coupling elements of the antennas and / or trailing cables is supported by a guide device.
- the guidance of the antennas and trailing cable is important to each other in electromagnetic coupling elements, so that they can attract each other.
- a "guiding device” is in particular a device which brings antennas and / or trailing cables closer to each other in a spatial proximity and / or in a spatial distance, whereby the guiding device can be positioned directly on the winch or freely positionable on and / or on the ship For example, the guide device outside on the ship's side wall.
- a guide device is in particular a guide funnel, guide rails and / or sheets.
- the object is achieved by a tug boat, wherein the tug boat has a previously described transducer arrangement and / or a previously described towed sonar and / or a previously described winch.
- a tugboat for high-quality location can be provided, which may have different types of transducer arrangements and / or a towed sonar for different running depths.
- the tug boat has a higher space and / or weight reserve.
- the object is achieved by a method for deploying and / or retrieving a sound transducer arrangement and / or a towed sonar and for receiving and / or transmitting water sound signals by means of a previously described sound transducer arrangement and / or a previously described towed sonar and / or a previously described winch and / or a towed ship described above, comprising the following steps:
- Figure 1 is a highly schematic representation of a
- Figure 2 is a highly schematic sectional view of a winch with a guide funnel.
- a tugboat 101 travels on the sea and has a towed sonar 102 on.
- the towed sonar 102 has a first antenna 103 with a first tow cable 104 and a second antenna 106 with a second tow cable 107.
- the first antenna 103 has seven different receiving modules 105 and the second antenna 106 has ten receiving modules 108.
- the first antenna 103 and the second antenna 106 are designed to be neutral in terms of buoyancy, while the first trailing cable 104 is lighter than the second trailing cable 107.
- the first antenna 103 is oriented horizontally at a depth of 50m and the second antenna 106 at a depth of 250m.
- the first antenna 103 is located above and the second antenna 106 is located below a thermocline 112. Due to the thermocline 112 is a
- Sonic velocity profile 113 curved to the water surface 111 and the seabed.
- the first antenna 103 and the first trailing cable 104 and the second trailing cable 107 have electromagnetic couplings 109.
- the electromagnetic couplings 109 are opened at the first antenna 103, a part of the first trailing cable 104 and a part of the second trailing cable 107.
- the other electromagnetic couplings 109 of the first trailing cable 104 and the second trailing cable 107 are closed and form a connected part of the first and second trailing cables 110.
- the towing binar 102 is connected at the connected portion of the first and second tow cables 110 to a winch 114 of the towboat 101.
- the winch 114 is arranged in a frame 221.
- the winch 114 has a rotatable drum 222 with the axis of rotation 226. Laterally on the frame 221, a motor 227 is arranged. At the top of the frame 221, a guide slide 224 and a guide funnel 223 are arranged.
- the electromagnetic couplings 109 are switched. As a result, the electromagnetic couplings 109 and due to the different densities of the first trailing cable 104 and the second trailing cable 107 and the pulling speed of the towed ship 101, which tows the first antenna 103 and the second antenna 106 on the connected part of the first and second trailing cables 110, The first antenna 103 and the second antenna 106 align horizontally in the different water depths of 50m and 250m from the mean water surface 111. Thereby For example, the first antenna 103 is above and the second antenna 106 is below the thermocline 112.
- Both antennas 103 and 106 receive water sound signals by means of their receiving modules 105 and 108.
- the first antenna 103 covers the area above the thermocline 112 and the second antenna 106 covers the area below the thermocline 112.
- the water sound signals are evaluated on board the tug boat 101 and used for the location of an unknown underwater vehicle.
- the towed sonar 102 is caught by the winch 114 by first winding the connected portion of the first and second tow cables 110 driven by the motor 227 due to the rotational motion of the drum 222.
- the electromagnetic couplings 109 are switched and these close to Connecting the decoupled parts of the first trailing cable 104 and the second trailing cable 107.
- the shorter antenna 103 is also in the region of the guide funnel 223 with the remaining decoupled part of the second trailing cable 107 and subsequently with a part of the second antenna 106 by closing the electromagnetic couplings 109th connected.
- a single connected tow strand 225 forms, which is wound on the drum 222 of the winch 214.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Oceanography (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015115693.8A DE102015115693A1 (de) | 2015-09-17 | 2015-09-17 | Schallwandleranordnung, Schleppsonar, Winde, Schleppschiff und Verfahren zum Ausbringen und Einholen |
PCT/DE2016/100388 WO2017045665A1 (de) | 2015-09-17 | 2016-08-29 | Schallwandleranordnung schleppsonar winde schleppschiff und verfahren zum ausbringen und einholen |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3350627A1 true EP3350627A1 (de) | 2018-07-25 |
Family
ID=57136626
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16781661.0A Pending EP3350627A1 (de) | 2015-09-17 | 2016-08-29 | Schallwandleranordnung schleppsonar winde schleppschiff und verfahren zum ausbringen und einholen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3350627A1 (de) |
CA (1) | CA2997196C (de) |
DE (1) | DE102015115693A1 (de) |
WO (1) | WO2017045665A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019200756A1 (de) | 2019-01-22 | 2019-12-24 | Atlas Elektronik Gmbh | Tiefenadaptives Schleppsonar |
DE102020206996A1 (de) | 2020-06-04 | 2021-12-09 | Thyssenkrupp Ag | Tiefenvariables Schleppsonar sowie Verfahren zum Betreiben |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4781140A (en) * | 1987-04-16 | 1988-11-01 | Teledyne Exploration Company | Apparatus for towing arrays of geophysical devices |
CA2003280A1 (en) * | 1988-11-18 | 1990-05-18 | Nicholas Jerome Reed | Demountable hydrophone cable connector |
US5943293A (en) * | 1996-05-20 | 1999-08-24 | Luscombe; John | Seismic streamer |
NO301737B1 (no) * | 1996-05-31 | 1997-12-01 | Petroleum Geo Services As | Anordning for justering av oppdrift |
US5673644A (en) * | 1996-08-22 | 1997-10-07 | The United States Of America As Represented By The Secretary Of The Navy | Tri-joint coupling |
US7184365B2 (en) * | 2002-12-26 | 2007-02-27 | Pgs Americas, Inc. | Unitary multi-cable towing system |
DE102012008248A1 (de) * | 2011-12-20 | 2013-06-20 | Atlas Elektronik Gmbh | Kupplungsmittel für Schlauchantennen sowie Unterwasserantenne mit derartigem Kupplungsmittel |
-
2015
- 2015-09-17 DE DE102015115693.8A patent/DE102015115693A1/de not_active Withdrawn
-
2016
- 2016-08-29 CA CA2997196A patent/CA2997196C/en active Active
- 2016-08-29 EP EP16781661.0A patent/EP3350627A1/de active Pending
- 2016-08-29 WO PCT/DE2016/100388 patent/WO2017045665A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
CA2997196A1 (en) | 2017-03-23 |
WO2017045665A1 (de) | 2017-03-23 |
DE102015115693A1 (de) | 2017-03-23 |
CA2997196C (en) | 2021-03-02 |
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Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
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