WO2005019658A1 - Strömungskanal für flüssigkeiten - Google Patents
Strömungskanal für flüssigkeiten Download PDFInfo
- Publication number
- WO2005019658A1 WO2005019658A1 PCT/EP2004/002961 EP2004002961W WO2005019658A1 WO 2005019658 A1 WO2005019658 A1 WO 2005019658A1 EP 2004002961 W EP2004002961 W EP 2004002961W WO 2005019658 A1 WO2005019658 A1 WO 2005019658A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- flow
- flow channel
- section
- cross
- liquids
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
- F15D1/06—Influencing flow of fluids in pipes or conduits by influencing the boundary layer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
- F15D1/06—Influencing flow of fluids in pipes or conduits by influencing the boundary layer
- F15D1/065—Whereby an element is dispersed in a pipe over the whole length or whereby several elements are regularly distributed in a pipe
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/02—Influencing flow of fluids in pipes or conduits
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/0753—Control by change of position or inertia of system
- Y10T137/0777—With second control
Definitions
- the invention relates to a flow channel for liquids.
- Liquids or gases are known to be channeled through a wide variety of flow channels in a wide variety of areas of life.
- the purpose is often a mass transport and / or energy transport.
- Examples of flow channels for liquids are pipelines, for example in domestic technology or process or energy technology, or flow channels in flow machines, such as water turbines or sewage treatment plants.
- flow channels are implemented, for example, in the form of veins for blood transport.
- a decisive parameter of flows through flow channels is the flow resistance, which is essentially caused by friction and deflections, which is often expressed in the form of standardized characteristic values such as the drag coefficient.
- the consideration of the flow resistance is of central importance for the design of flow channels such as pipelines and the dimensioning of pumps or other pressure-producing organs.
- the flow resistance and the friction losses occurring during the flow must of course be minimized as far as possible, so that, for example, the energy required for pumping can ultimately be kept as low as possible for a system. This must be taken into account when designing flow channels.
- the object of the present invention is to provide a flow channel for liquids or gases which is designed in such a way that the lowest possible losses in the flow, in particular low frictional losses, occur.
- Another object of the invention is to provide a flow channel for liquids in which different flow areas are established.
- the invention achieves the object in the case of a flow channel of the type mentioned at the outset in that at least one wall delimiting the flow channel is designed such that when a liquid flows through it, at least one flow area is formed which has an axial and simultaneous tangential flow component.
- a flow channel according to the invention creates a flow with axial and tangential flow components at least in sections due to its wall design, as a result of which the flow resistance is significantly reduced compared to conventional flow channels.
- This reduction in the flow resistance advantageously has the effect that the energetic losses of the flow, the pressure losses and the resistance coefficient are reduced. It is therefore necessary to have a lower pump output for generating a specific volume or mass flow of a liquid than in the case of conventional flow channels. This enables the pump output to be applied to pipes, for example, to be significantly reduced.
- the flow losses can also be reduced according to the invention in the case of turbomachines, hydropower plants or the like, and the efficiency is thus increased.
- a circulating spiral flow is preferably formed in regions or completely. Experimental studies have shown that wall design, which causes a kind of circulating spiral flow through the flow channel, results in lower flow resistances and thus flow losses.
- the length of a pipe section which is completely twisted once in a certain ratio to the length of the smallest halves ends of the cross-sectional area of the flow channel, which is in the range 6 to 7, particularly preferably in the range of 6.44. Due to the non-cylindrical design of the flow cross-section and twisting or twisting in the axial direction, an at least partially spiral-like flow with axial and tangential flow components with low flow resistance can be realized in a structurally simple manner.
- the ratio of the length of the longer axis of the oval flow cross section to the length of the shorter axis of the flow cross section is significantly greater than 1, preferably greater or approximately 2 . This also minimizes the drag coefficient of the flow channel.
- the flow cross section taper or widen in the flow direction.
- the invention further solves the problem or is further developed by a flow channel for liquids, which is designed such that essentially two flow areas form within the channel when a liquid flows through, which flow areas do not penetrate or hardly penetrate each other and are wrapped in the manner of a double helix ,
- Such a design of the flow channel and a flow with essentially two flow areas also makes it possible to reduce the number of flow areas Achieve flow resistance, so that ultimately pump power is reduced and efficiency of turbomachinery is improved.
- different phases of a flow for example different liquids
- Such a separation can take place, for example, in that different constituents of a liquid with different material properties such as densities or viscosities preferably move in certain areas of the flow cross section, so that segregation can occur.
- the flow channel according to the invention is further developed in that further underflow areas are formed within each flow area, which in turn are intertwined with one another. This allows the flow conditions to be further improved and, if necessary, the separation effects described above to be improved.
- the two core flow channels are essentially circular and form a main fluid flow, and that one or more secondary flows are formed in the region of the flow tube that is not occupied by the main flow cores, with a main flow and there is no or preferably only a slight fluid exchange in a bypass region and foreign bodies are preferably transported in the entire fluid stream in the bypass region. Solid and liquid or different liquid phases of the flow can also be formed in this way.
- Figure 1 is a schematic representation of a flow channel formed in a flow tube.
- Fig. 3 measurement results of experiments with flow channels according to the invention 4 shows a flow schematically shown in a flow channel according to the invention with different flow areas and
- FIG. 5 shows a schematic cross-sectional illustration of the flow shown in FIG. 4.
- Figure 1 shows a side view of an embodiment of a flow tube 2, in which a flow channel 4 according to the invention is formed.
- Fluids ie. H.
- a three-phase flow with liquid, gaseous and solid components can also flow through flow channel 4, for example.
- the tube 2 can be made of plastic or metal.
- the tube 2 is preferably designed such that the flow cross section is essentially oval, as shown in the schematic representations according to FIG. 2a) and FIG. 2b).
- the tube 2 is, as Fig. 1 shows schematically, in the axial direction, i. H. twisted or twisted in the direction of the longitudinal axis 3.
- FIGS. 1 and 2a are slightly less curved than the design of the walls according to the embodiment of Fig. 2b).
- a flow forms in the flow channel 4 which not only has a flow component in the axial direction, ie in the direction of the axis 3, but also a flow component in the tangential direction with respect to the axis 3. This results from the twisted design of the flow channel 4 or the tube 2. This is shown schematically in FIGS. 1 and 2a by arrows 7. This essentially results in a circulating, spiral flow through the pipe 2 in the flow channel 4.
- FIGS. 2c-f likewise lead to a flow according to the invention with an axial and tangential flow component, and consequently to a kind of spiral flow in the flow channel 4.
- FIG. 2c represents a rectangular
- FIG. 2d a square
- FIG. 2e one triangular
- FIG. 2 f represents an octagonal flow cross section.
- a hexagonal design of the flow cross section or a corresponding flow tube 2 is also possible according to the invention.
- These exemplary embodiments are also preferably designed such that the flow cross section is twisted in the axial direction (axis 3).
- the ratio of the wavelength to the length of the smallest bisector of the cross-sectional area of the flow cross section 4 is in a specific ratio, which is in the range from 6 to 7.
- FIG. 3 Results of experimental investigations with flow channels according to the invention are shown in FIG. 3. Measurements have been made of the performance of a pump with conventional cylindrical pipes and with oval and twisted pipes according to the invention, water being used as the liquid.
- the figure shows the pump power consumed on the vertical Y axis and the volume flow of water through the respective pipes on the horizontal X axis.
- Curve 8 shows the pump power consumed for different volume flows for conventional cylindrical pipes and curve 10 shows the pump power for different volume flows for oval pipes according to the invention.
- the cross-sectional areas of the cylindrical or oval tubes have remained constant. It can be seen that the recorded mene pump capacity according to curve 10 for pipes according to the invention with the same volume flow is lower than in conventional pipes.
- FIGS. 4 and 5 show further flow channels according to the invention and flows which form therein with a schematic illustration.
- a flow channel When a flow channel is twisted in relation to the schematically indicated longitudinal axis 3 of a flow channel, when a liquid flows through it, essentially two larger flow areas 12, 14 initially form, which are wrapped in the course of the flow in the manner of a double helix. The mixing of the areas 12, 14 is low. Underflow regions 16, 18 and 20, 22 form within each flow region 12, 14, which in turn are wrapped in the manner of a double helix. In turn, interlaced underflow areas can in turn form in these underflow areas 16-22.
- the two main flow areas or core flow channels 12, 14 are essentially round in cross section.
- Secondary flows or secondary flow regions 24, 26 can form adjacent to the core flow channels 12, 14, in which certain components, for example solid components, can accumulate. In this way it is possible to separate components of the liquid.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
Description
Claims
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0412883 BRPI0412883A (pt) | 2003-07-22 | 2004-03-20 | canal de fluxo para lìquidos |
EP04722166A EP1649173A1 (de) | 2003-07-22 | 2004-03-20 | Strömungskanal für flüssigkeiten |
MXPA06000733A MXPA06000733A (es) | 2003-07-22 | 2004-03-20 | Canal de flujo para liquidos. |
US10/565,399 US7487799B2 (en) | 2003-07-22 | 2004-03-20 | Flow channel for liquids |
AU2004267143A AU2004267143A1 (en) | 2003-07-22 | 2004-03-20 | Flow channel for liquids |
JP2006520675A JP2006528750A (ja) | 2003-07-22 | 2004-03-20 | 流体用流動チャネル |
CA 2533042 CA2533042A1 (en) | 2003-07-22 | 2004-03-20 | Flow channel for liquids |
IL173185A IL173185A0 (en) | 2003-07-22 | 2006-01-17 | Flow channel for liquids |
EGNA2006000063 EG23928A (en) | 2003-07-22 | 2006-01-21 | Flow channel for liquids |
NO20060842A NO20060842L (no) | 2003-07-22 | 2006-02-21 | Stromningskanal for vaesker |
IS8317A IS8317A (is) | 2003-07-22 | 2006-02-21 | Flæðirás fyrir vökva |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10333477.7 | 2003-07-22 | ||
DE10333477A DE10333477A1 (de) | 2003-07-22 | 2003-07-22 | Strömungskanal für Flüssigkeiten |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005019658A1 true WO2005019658A1 (de) | 2005-03-03 |
Family
ID=34088756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/002961 WO2005019658A1 (de) | 2003-07-22 | 2004-03-20 | Strömungskanal für flüssigkeiten |
Country Status (17)
Country | Link |
---|---|
US (1) | US7487799B2 (de) |
EP (1) | EP1649173A1 (de) |
JP (1) | JP2006528750A (de) |
KR (1) | KR20060036468A (de) |
CN (1) | CN1833109A (de) |
AR (1) | AR046398A1 (de) |
AU (1) | AU2004267143A1 (de) |
BR (1) | BRPI0412883A (de) |
CA (1) | CA2533042A1 (de) |
DE (1) | DE10333477A1 (de) |
EG (1) | EG23928A (de) |
IL (1) | IL173185A0 (de) |
IS (1) | IS8317A (de) |
MX (1) | MXPA06000733A (de) |
NO (1) | NO20060842L (de) |
WO (1) | WO2005019658A1 (de) |
ZA (1) | ZA200600103B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112870960A (zh) * | 2021-03-19 | 2021-06-01 | 中国华电科工集团有限公司 | 喷氨装置、烟气脱硝装置 |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080237044A1 (en) * | 2007-03-28 | 2008-10-02 | The Charles Stark Draper Laboratory, Inc. | Method and apparatus for concentrating molecules |
WO2008130618A1 (en) | 2007-04-19 | 2008-10-30 | The Charles Stark Draper Laboratory, Inc. | Method and apparatus for separating particles, cells, molecules and particulates |
US7837379B2 (en) * | 2007-08-13 | 2010-11-23 | The Charles Stark Draper Laboratory, Inc. | Devices for producing a continuously flowing concentration gradient in laminar flow |
BRPI1007219A8 (pt) * | 2009-01-21 | 2016-08-16 | Nippon Steel & Sumito Metal Corp | elemento oco |
US20100278666A1 (en) * | 2009-04-30 | 2010-11-04 | Olson David A | High solids material moving apparatus |
DE102009058198A1 (de) | 2009-12-15 | 2011-06-16 | Sms Siemag Ag | Düsenvorrichtung und Strangführungsvorrichtung mit der Düsenvorrichtung |
DE102011106494B4 (de) | 2011-06-07 | 2022-03-03 | Sms Group Gmbh | Düsenvorrichtung und Strangführungsvorrichtung mit der Düsenvorrichtung |
CN103204186B (zh) * | 2012-01-17 | 2016-04-20 | 朱晓义 | 运动装置 |
JP2014198324A (ja) * | 2013-03-29 | 2014-10-23 | ソニー株式会社 | マイクロ流路及びマイクロ流体デバイス |
CN104386236A (zh) | 2014-11-17 | 2015-03-04 | 朱晓义 | 具有更大升力的飞行器 |
DE102015010639B4 (de) * | 2015-08-13 | 2019-01-31 | Sandy Schöbbel | Verwendung einer Röhre |
EP3587987B1 (de) * | 2017-06-07 | 2023-02-15 | Nanjing Tech University | Rohrmischer |
US11187466B2 (en) * | 2019-07-26 | 2021-11-30 | Denso International America, Inc. | Heat exchanger and heat exchanging system |
CN111151390A (zh) * | 2020-01-22 | 2020-05-15 | 柯敏兴 | 一种液体出液形状控制装置 |
RU2739626C1 (ru) * | 2020-03-23 | 2020-12-28 | Борис Никифорович Сушенцев | Способ снижения гидродинамического сопротивления корпуса судна и скоростное судно с использованием данного способа |
CN113390209B (zh) * | 2021-07-07 | 2022-06-24 | 内蒙古大唐国际克什克腾煤制天然气有限责任公司 | 冬季无需加压设备向制冷系统补充制冷剂的装置及其方法 |
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AT134543B (de) * | 1931-08-12 | 1933-08-25 | Viktor Schauberger | Wasserführung in Rohren und Gerinnen. |
GB409528A (en) * | 1933-06-28 | 1934-05-03 | Aerol Engine Corp | Improvements in liquid conducting conduits |
FR1002454A (fr) * | 1946-10-04 | 1952-03-06 | Schnellbau Technik G M B H | Conduite de circulation, notamment pour mélanges gazeux et/ou pulvérulents |
US3224814A (en) * | 1962-12-03 | 1965-12-21 | Sprout Waldron & Co Inc | Conduit for pneumatic conveying systems |
DE2156578A1 (de) * | 1971-11-15 | 1973-05-24 | Knut Dr Ing Kauder | Flexible rohrleitung zur fortleitung von fluiden, insbesondere zur waermeuebertragung |
DE2510169A1 (de) * | 1975-03-08 | 1976-09-16 | Albert Ziegler Kg | Fluessigkeitsleitung, z.b. schlauch |
GB2192966A (en) * | 1986-07-25 | 1988-01-27 | Shell Int Research | Fabricating helical flowline bundles |
WO1990015256A1 (en) * | 1989-06-07 | 1990-12-13 | Aerosep Societe Anonyme | Curved fluid translation systems |
US5924456A (en) * | 1993-07-01 | 1999-07-20 | Hutchinson | Tubular section member, in particular for use as a fluid flow duct |
WO2000038591A2 (en) * | 1998-12-29 | 2000-07-06 | Tayside University Hospitals Nhs Trust | Blood-flow tubing |
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US85149A (en) * | 1868-12-22 | Improvement in tubes for steam-generators | ||
US770599A (en) * | 1904-09-20 | Half to e | ||
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US1363416A (en) * | 1918-09-24 | 1920-12-28 | Ross B Hooker | Method of making radiator-tubes |
US1958577A (en) * | 1930-06-12 | 1934-05-15 | Glarence F Hirshfeld | Apparatus for dust separation |
US2139888A (en) * | 1936-08-10 | 1938-12-13 | Arthur J Fausek | Hose structure |
US2115769A (en) * | 1936-08-22 | 1938-05-03 | Henry H Harris | Radiant heating tube |
US2115796A (en) * | 1937-01-06 | 1938-05-03 | American Car & Foundry Co | Locking mechanism for venetian blinds |
US2935906A (en) * | 1957-07-01 | 1960-05-10 | Andreasson Rudolf William | Oil tube drill |
US3273916A (en) * | 1961-03-13 | 1966-09-20 | Lloyd E Tillery | Unitary flexible metallic connector |
US3612175A (en) * | 1969-07-01 | 1971-10-12 | Olin Corp | Corrugated metal tubing |
US3578075A (en) * | 1969-10-29 | 1971-05-11 | Olin Corp | Corrugated tubing |
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US4843713A (en) * | 1986-07-25 | 1989-07-04 | Shell Oil Company | Apparatus for making helical flowline bundles |
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-
2003
- 2003-07-22 DE DE10333477A patent/DE10333477A1/de not_active Ceased
-
2004
- 2004-03-20 AU AU2004267143A patent/AU2004267143A1/en not_active Abandoned
- 2004-03-20 MX MXPA06000733A patent/MXPA06000733A/es not_active Application Discontinuation
- 2004-03-20 KR KR1020067001580A patent/KR20060036468A/ko not_active Application Discontinuation
- 2004-03-20 CA CA 2533042 patent/CA2533042A1/en not_active Abandoned
- 2004-03-20 EP EP04722166A patent/EP1649173A1/de not_active Withdrawn
- 2004-03-20 US US10/565,399 patent/US7487799B2/en not_active Expired - Fee Related
- 2004-03-20 CN CNA2004800210042A patent/CN1833109A/zh active Pending
- 2004-03-20 WO PCT/EP2004/002961 patent/WO2005019658A1/de not_active Application Discontinuation
- 2004-03-20 JP JP2006520675A patent/JP2006528750A/ja active Pending
- 2004-03-20 BR BRPI0412883 patent/BRPI0412883A/pt not_active IP Right Cessation
- 2004-07-21 AR ARP040102577 patent/AR046398A1/es unknown
-
2006
- 2006-01-17 IL IL173185A patent/IL173185A0/en unknown
- 2006-01-18 ZA ZA200600103A patent/ZA200600103B/xx unknown
- 2006-01-21 EG EGNA2006000063 patent/EG23928A/xx active
- 2006-02-21 IS IS8317A patent/IS8317A/is unknown
- 2006-02-21 NO NO20060842A patent/NO20060842L/no not_active Application Discontinuation
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Publication number | Priority date | Publication date | Assignee | Title |
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AT134543B (de) * | 1931-08-12 | 1933-08-25 | Viktor Schauberger | Wasserführung in Rohren und Gerinnen. |
GB409528A (en) * | 1933-06-28 | 1934-05-03 | Aerol Engine Corp | Improvements in liquid conducting conduits |
FR1002454A (fr) * | 1946-10-04 | 1952-03-06 | Schnellbau Technik G M B H | Conduite de circulation, notamment pour mélanges gazeux et/ou pulvérulents |
US3224814A (en) * | 1962-12-03 | 1965-12-21 | Sprout Waldron & Co Inc | Conduit for pneumatic conveying systems |
DE2156578A1 (de) * | 1971-11-15 | 1973-05-24 | Knut Dr Ing Kauder | Flexible rohrleitung zur fortleitung von fluiden, insbesondere zur waermeuebertragung |
DE2510169A1 (de) * | 1975-03-08 | 1976-09-16 | Albert Ziegler Kg | Fluessigkeitsleitung, z.b. schlauch |
GB2192966A (en) * | 1986-07-25 | 1988-01-27 | Shell Int Research | Fabricating helical flowline bundles |
WO1990015256A1 (en) * | 1989-06-07 | 1990-12-13 | Aerosep Societe Anonyme | Curved fluid translation systems |
US5924456A (en) * | 1993-07-01 | 1999-07-20 | Hutchinson | Tubular section member, in particular for use as a fluid flow duct |
WO2000038591A2 (en) * | 1998-12-29 | 2000-07-06 | Tayside University Hospitals Nhs Trust | Blood-flow tubing |
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JISCHA: "Konvektiver Impuls-, Wärme- und Stoffaustausch", 1982, VIEWEG, BRAUNSCHWEIG, XP002301995 * |
SPALDING, TABOREK: "Heat Exchanger Design Handbook", 1983, HEMISPHERE PUB. CO., DÜSSELDORF, XP002301994 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112870960A (zh) * | 2021-03-19 | 2021-06-01 | 中国华电科工集团有限公司 | 喷氨装置、烟气脱硝装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2006528750A (ja) | 2006-12-21 |
EP1649173A1 (de) | 2006-04-26 |
CA2533042A1 (en) | 2005-03-03 |
BRPI0412883A (pt) | 2006-10-03 |
US20070017588A1 (en) | 2007-01-25 |
DE10333477A1 (de) | 2005-02-24 |
US7487799B2 (en) | 2009-02-10 |
NO20060842L (no) | 2006-03-15 |
AU2004267143A1 (en) | 2005-03-03 |
CN1833109A (zh) | 2006-09-13 |
ZA200600103B (en) | 2006-09-27 |
AR046398A1 (es) | 2005-12-07 |
EG23928A (en) | 2008-01-13 |
IS8317A (is) | 2006-02-21 |
MXPA06000733A (es) | 2006-04-19 |
KR20060036468A (ko) | 2006-04-28 |
IL173185A0 (en) | 2006-06-11 |
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