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  • 1
    Keywords: Agricultural conservation. ; Electronic books.
    Description / Table of Contents: This synopsis covers evidence for the effects of conservation interventions for native farmland wildlife. It is restricted to evidence captured on the website www.conservationevidence.com. The list of interventions was organized into categories based on the IUCN classifications of direct threats and conservation actions.
    Type of Medium: Online Resource
    Pages: 1 online resource (570 pages)
    Edition: 1st ed.
    ISBN: 9781907807954
    Series Statement: Synopses of Conservation Evidence ; v.3
    DDC: 333.76094
    Language: English
    Note: Intro -- Farmland Conservation -- Farmland Conservation -- Copyright -- Contents -- Advisory board -- About the authors -- Acknowledgements -- About this book -- 1: All farming systems -- 2: Arable farming -- 3: Perennial (non-timber) crops -- 4: Livestock farming -- 5: Residential and commercial development -- 6: Agri-chemicals -- 7: Transport and service corridors -- 8: Hunting and trapping (for pest control, food or sport) -- 9: Natural system modification -- 10: Invasive and other problematic species -- 11: Education and awareness -- Index.
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  • 2
    Online Resource
    Online Resource
    La Vergne :Royal Society of Chemistry, The,
    Keywords: Metals - diagnostic use. ; Electronic books.
    Description / Table of Contents: Metals in pharmaceuticals have play an important role in medicine, particularly in cancer therapy and diagnostic imaging methods.
    Type of Medium: Online Resource
    Pages: 1 online resource (371 pages)
    Edition: 1st ed.
    ISBN: 9781847557759
    DDC: 615.19
    Language: English
    Note: Medicinal Applications of Coordination Chemistry -- Contents -- Abbreviations -- CHAPTER 1 Introduction -- 1.1 Metals in Medicine - A Historical Perspective -- 1.2 Metals and Human Biochemistry -- 1.3 Metallopharmaceuticals -- 1.3.1 General Requirements -- 1.3.2 Structure-Activity Relationships -- 1.3.3 Clinical Trials -- 1.4 The Special Properties of Metals -- 1.4.1 Comparison with Organic and Biological Compounds -- 1.4.2 Coordination Chemistry -- CHAPTER 2 The Chemistry of Metals in a Nutshell -- 2.1 The Structure of Materials -- 2.1.1 States of Matter -- 2.1.2 Chemical Elements -- 2.1.3 Chemical Compounds -- 2.2 The Structures and Properties of Atoms -- 2.2.1 Electron Configurations -- 2.2.2 The Spacial Distribution of Electrons in Atoms -- 2.2.3 The Electronic Properties of Atoms and Ions -- 2.2.4 The Radii of Atoms and Ions -- 2.3 The Formation of Compounds -- 2.3.1 Chemical Bonds -- 2.3.2 The Ionic Bond -- 2.3.3 The Covalent Bond -- 2.3.4 The Coordinate Bond -- 2.3.5 Polarity in Bonding -- 2.4 The Chemistry of Metals - An Overview -- 2.4.1 The Oxidation Numbers and Electron Configurations of Metal Ions -- 2.4.2 The Structures of Metal Compounds -- 2.5 Bonding in Metal Complexes -- 2.5.1 The Crystal Field Theory and Octahedral Complexes -- 2.5.2 The MO Theory and Octahedral Complexes -- 2.5.3 The Eighteen-Electron Rule -- 2.5.4 The Crystal Field Theory and Complexes of CN 4 -- 2.6 The Magnetism and Spectroscopy of Metal Complexes -- 2.6.1 The Electronic Spectra of Metal Complexes -- 2.6.2 Lanthanide Luminescence -- 2.6.3 The Magnetic Properties of Transitional Element Complexes -- 2.7 The Energetics of Metal Complex Formation -- 2.7.1 Equilibrium or Stability Constants -- 2.7.2 Hard and Soft Donors or Acceptors -- 2.7.3 The Chelate and Macrocyclic Effects -- 2.8 Reactions at Metal Centres -- 2.8.1 Thermodynamic and Kinetic Stability. , 2.8.2 Substitution Reactions at Metal Centres -- 2.8.3 Mechanisms of Substitution at Metal Centres -- 2.9 Redox Potentials -- 2.10 Conclusions -- CHAPTER 3 Diagnostic Medicine -- 3.1 Introduction -- 3.2 Anatomical Imaging -- 3.2.1 Magnetic Resonance Imaging Contrast Agents -- 3.2.2 X-ray Contrast Agents -- 3.3 Functional Imaging -- 3.3.1 Radiopharmaceuticals for Functional Imaging -- 3.3.2 Nuclear Medicine -- 3.3.3 Radiopharmaceuticals -- 3.3.4 Aspects of Technetium Chemistry -- 3.3.5 Blood-pool Imaging and Labelled Blood Cells -- 3.3.6 99mTc SPECT Imaging Agents for Bone -- 3.3.7 Kidney Imaging -- 3.3.8 Liver and Hepatobiliary System -- 3.3.9 Heart SPECT and PET Imaging -- 3.3.10 Brain Imaging -- 3.3.11 Tumors Abscesses and Hypoxia -- 3.3.12 Synthetic Approaches to Bifunctional 99mTc Radiopharmaceuticals -- 3.4 In vitro Applications -- CHAPTER 4 Therapeutic Medicine -- 4.1 The Use of Metal Compounds in Therapy -- 4.2 Chelation Therapy -- 4.2.1 Metal Sequestration -- 4.2.2 Macrocyclic Antibiotics -- 4.2.3 Metal Intoxication -- 4.2.4 Thalassaemia-Iron -- 4.2.5 Wilson Disease-Copper -- 4.3 Cancer Therapy -- 4.3.1 Metal Complexes in Cancer Therapy -- 4.3.2 Platinum and Palladium Anticancer Agents -- 4.3.3 Non-Platinum Anticancer Agents -- 4.4 Rheumatoid Arthritis -- 4.4.1 Introduction -- 4.4.2 Gold Chemistry -- 4.4.3 Gold Compounds for the Treatment of Rheumatoid Arthritis -- 4.5 Diabetes -- 4.5.1 Vanadium and Diabetes -- 4.5.2 Vanadium Chemistry -- 4.5.3 Vanadium Salts as Insulin Mimics -- 4.5.4 Vanadium Coordination Compounds as Insulin Mimics -- 4.5.5 Mechanism of Action of Vanadium Compounds -- 4.6 Cardiovascular System -- 4.6.1 In vivo Management of Gaseous Compounds -- 4.6.2 Superoxide Dismutase Mimics -- 4.6.3 Nitric Oxide Management -- 4.7 Therapeutic Radiopharmaceuticals -- 4.7.1 Radiation Therapy -- 4.7.2 α-Emitters -- 4.7.3 β-Emitters. , 4.7.4 Radiosensitisers -- CHAPTER 5 Metallopharmaceuticals Design -- 5.1 Introduction -- 5.2 Structure Activity Relationships -- 5.2.1 Organic Molecules -- 5.2.2 Metallopharmaceuticals -- 5.3 Future Directions -- Further Reading -- Subject Index.
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  • 3
    Online Resource
    Online Resource
    San Diego :Elsevier Science & Technology,
    Keywords: Feeds -- Law and legislation -- Great Britain. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (144 pages)
    Edition: 1st ed.
    ISBN: 9781483165448
    Language: English
    Note: Front Cover -- Animal Feeding Stuffs Legislation of the UK: A Concise Guide -- Copyright Page -- Table of Contents -- Preface -- Chapter 1. Introduction -- Chapter 2. UK Animal feeding stuffs law -- Chapter 3. Acts -- 3.1 Agriculture Act 1970 Part IV -- 3.2 Medicines Act 1968 -- 3.3 Animal Health and Welfare Act 1984 -- 3.4 Regulations under the Medicines Act -- Chapter 4. Definitions -- 4.1 Animals -- 4.2 Description of material -- 4.3 Terms used under Agriculture Act Regulations -- 4.4 Terms used under Medicines Act Regulations -- Chapter 5. Raw materials and straights -- 5.1 General form of the statutory statements -- 5.2 Undesirable substances -- 5.3 Limits of variation (tolerances) -- 5.4 Names, descriptions and declarations -- 5.5 Controls on certain protein sources -- Chapter 6. Compound feeding stuffs -- 6.1 General form of the statutory statements under the Agriculture Act 1970 and its Regulations -- 6.2 Packaging -- 6.3 Moisture in certain compound feeding stuffs -- 6.4 Statutory declarations -- 6.5 Molassed feeding stuffs -- 6.6 Mineral feeding stuffs -- 6.7 Undesirable substances -- 6.8 Non-medicinal additives in compound feeding stuffs -- 6.9 Medicated compound animal feeding stuffs -- 6.10 Prescription only medicines in feeds - special provisions and the written veterinary direction -- 6.11 Limits of variation (tolerances) - nutrients, additives and medicinal products -- Chapter 7. Additives and premixtures -- 7.1 General form of the statutory statements -- 7.2 Controls and labelling -- 7.3 Packaging -- Chapter 8. Registration of manufacturers -- 8.1 Registered manufacturers-Register A -- 8.2 Notified manufacturers-Register B -- Chapter 9. Sampling and analyses -- 9.1 Sampling -- 9.2 Inspectors' rights -- 9.3 Informal samples -- 9.4 Purchasers' rights -- 9.5 Analysis -- Appendix 1: Specimen labels -- Appendix 2: Current proposals. , 1. Declaration of metabolisable energy in poultry feeds -- 2. Anatoxin in raw materials -- 3. Recommended standard withdrawal periods for medicated feeding stuffs -- 4. European feed label -- 5. Bentonite and Montmorrillonite -- 6. Cadmium -- 7. Iron in Milk replacer feeds -- Appendix 3: Codes of practice for medicated feeds -- Introduction -- Procedure -- A Code of practice for registered manufacturers of medicated animal feeding stuffs-Register A -- B Code of practice for notified manufacturers of medicated animal feeding stuffs-Register B -- Index.
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  • 4
    Online Resource
    Online Resource
    Exeter :Pelagic Publishing,
    Keywords: Birds--Conservation. ; Electronic books.
    Description / Table of Contents: This book brings together scientific evidence and experience relevant to the practical conservation of wild birds. The authors worked with an international group of bird experts and conservationists to develop a global list of interventions that could benefit wild birds.
    Type of Medium: Online Resource
    Pages: 1 online resource (593 pages)
    Edition: 1st ed.
    ISBN: 9781907807213
    Series Statement: Synopses of Conservation Evidence ; v.2
    DDC: 333.95816
    Language: English
    Note: Cover -- Contents -- Advisory board -- About the authors -- Acknowledgements -- 1. About this book -- 2. Habitat protection -- Key messages -- 2.1. Legally protect habitats -- 2.2. Ensure connectivity between habitat patches -- 2.3. Provide or retain un-harvested buffer strips -- 3. Education and awareness raising -- Key messages -- 3.1. Raise awareness amongst the general public through campaigns and public information -- 3.2. Provide bird feeding materials to families with young children -- 3.3. Enhance bird taxonomy skills through higher education and training -- 3.4. Provide training to conservationists and land managers on bird ecology and conservation -- 4. Threat: Residential and commercial development -- Key messages -- 4.1. Angle windows to reduce collisions -- 4.2. Mark or tint windows to reduce collision mortality -- 5. Threat: Agriculture -- Key messages - All farming systems -- Key messages - Arable farming -- Key messages - Livestock farming -- Key messages - Perennial, non-timber crops -- Key messages - Aquaculture -- All farming systems -- 5.1. Support or maintain low-intensity agricultural systems -- 5.2. Practise integrated farm management -- 5.3. Food labelling schemes relating to biodiversity-friendly farming -- 5.4. Increase the proportion of natural/semi-natural vegetation in the farmed landscape -- 5.5. Pay farmers to cover the costs of conservation measures -- 5.6. Cross compliance standards for all subsidy payments -- 5.7. Reduce field size (or maintain small fields) -- 5.8. Provide or retain set-aside areas in farmland -- 5.9. Manage hedges to benefit wildlife -- 5.10. Plant new hedges -- 5.11. Manage stone-faced hedge banks to benefit birds -- 5.12. Manage ditches to benefit wildlife -- 5.13. Protect in-field trees -- 5.14. Plant in-field trees -- 5.15. Tree pollarding and tree surgery. , 5.16. Plant wild bird seed or cover mixture -- 5.17. Plant nectar flower mixture/wildflower strips -- 5.18. Create uncultivated margins around intensive arable or pasture fields -- 5.19. Plant grass buffer strips/margins around arable or pasture fields -- 5.20. Use mowing techniques to reduce chick mortality -- 5.21. Provide refuges in fields during harvest or mowing -- 5.22. Mark bird nests during harvest or mowing -- 5.23. Relocate nests at harvest time to reduce nestling mortality -- 5.24. Make direct payments per clutch for farmland birds -- 5.25. Control scrub on farmland -- 5.26. Take field corners out of management -- 5.27. Reduce conflict by deterring birds from taking crops -- Arable farming -- 5.28. Increase crop diversity -- 5.29. Implement 'mosaic management' -- 5.30. Leave overwinter stubbles -- 5.31. Plant nettle strips -- 5.32. Leave unharvested cereal headlands within arable fields -- 5.33. Plant crops in spring rather than autumn -- 5.34. Undersow spring cereals,with clover for example -- 5.35. Plant more than one crop per field (intercropping) -- 5.36. Revert arable land to permanent grassland -- 5.37. Reduce tillage -- 5.38. Add 1%barley into wheat crop for corn buntings -- 5.39. Leave uncropped, cultivated margins or plots (includes lapwing and stone curlew plots) -- 5.40. Create skylark plots -- 5.41. Create corn bunting plots -- 5.42. Plant cereals in wide-spaced rows -- 5.43. Create beetle banks -- Livestock farming -- 5.44. Maintain species-rich, semi-natural grassland -- 5.45. Reduce management intensity on permanent grasslands -- 5.46. Reduce grazing intensity -- 5.47. Provide short grass for waders -- 5.48. Raise mowing height on grasslands -- 5.49. Delay mowing date or first grazing date on grasslands -- 5.50. Leave uncut rye grass in silage fields -- 5.51. Plant cereals for wholecrop silage. , 5.52. Maintain lowland heathland -- 5.53. Maintain rush pastures -- 5.54. Maintain traditional water meadows -- 5.55. Maintain upland heath/moor -- 5.56. Plant Brassica fodder crops -- 5.57. Use mixed stocking -- 5.58. Use traditional breeds of livestock -- 5.59. Maintain wood pasture and parkland -- 5.60. Exclude grazers from semi-natural habitats (including woodland) -- 5.61. Protect nests from livestock to reduce trampling -- 5.62. Mark fences to reduce bird collision mortality -- 5.63. Create open patches or strips in permanent grassland -- Perennial, non-timber crops -- 5.64. Maintain traditional orchards -- 5.65. Manage perennial bioenergy crops to benefit wildlife -- Aquaculture -- 5.66. Reduce conflict with humans to reduce persecution -- 5.67. Scare birds from fish farms -- 5.68. Disturb birds at roosts -- 5.69. Use electric fencing to exclude fish-eating birds -- 5.70. Use netting to exclude fish-eating birds -- 5.71. Disturb birds using foot patrols -- 5.72. Use 'mussel socks ' to prevent birds from attacking shellfish -- 5.73. Translocate birds away from fish farms -- 5.74. Increase water turbidity to reduce fish predation by birds -- 5.75. Provide refuges for fish within ponds -- 5.76. Use in-water devices to reduce fish loss from ponds -- 5.77. Spray water to deter birds from ponds -- 5.78. Deter birds from landing on shellfish culture gear -- 6. Threat:Energy production and mining -- Key messages -- 6.1. Paint wind turbines to increase their visibility -- 7. Threat:Transportation and service corridors -- Key messages - Verges and airports -- Key messages - Power lines and electricity pylons -- Verges and airports -- 7.1. Mow roadside verges -- 7.2. Sow roadside verges -- 7.3. Scare or otherwise deter birds from airports -- Power lines and electricity pylons -- 7.4. Bury or isolate power lines to reduce incidental mortality. , 7.5. Remove earth wires to reduce incidental mortality -- 7.6. Thicken earth wire to reduce incidental mortality -- 7.7. Mark power lines to reduce incidental mortality -- 7.8. Use raptor models to deter birds and so reduce incidental mortality -- 7.9. Add perches to electricity pylons to reduce electrocution -- 7.10. Insulate power pylons to prevent electrocution -- 7.11. Use perch-deterrents to stop raptors perching on pylons -- 7.12. Reduce electrocutions by using plastic, not aluminium, leg rings to mark birds -- 8. Threat: Biological resource use -- Key messages - reducing exploitation and conflict -- Key messages - reducing fisheries bycatch -- Reducing exploitation and conflict -- 8.1. Use legislative regulation to protect wild populations -- 8.2. Increase 'on-the-ground' protection to reduce unsustainable levels of exploitation -- 8.3. Promote sustainable alternative livelihoods -- 8.4. Use education programmes and local engagement to help reduce persecution or exploitation of species -- 8.5. Employ local people as 'biomonitors -- 8.6. Mark eggs to reduce their appeal to egg collectors -- 8.7. Relocate nestlings to reduce poaching -- 8.8. Use wildlife refuges to reduce hunting disturbance -- 8.9. Introduce voluntary 'maximum shoot distances' -- 8.10. Provide 'sacrificial' grasslands to reduce the impact of wild geese on crops -- 8.11. Move fish-eating birds to reduce conflict with fishermen -- 8.12. Scare fish-eating birds from areas to reduce conflict -- Reduce fisheries bycatch -- 8.13. Set longlines at night to reduce seabird bycatch -- 8.14. Turn deck lights off during night-time setting of longlines to reduce bycatch -- 8.15. Use streamer lines to reduce seabird bycatch on longlines -- 8.16. Use larger hooks to reduce seabird bycatch -- 8.17. Use a water cannon when setting longlines to reduce seabird bycatch. , 8.18. Set lines underwater to reduce seabird bycatch -- 8.19. Set longlines at the side of the boat to reduce seabird bycatch -- 8.20. Use a line shooter to reduce seabird bycatch -- 8.21. Use bait throwers to reduce seabird bycatch -- 8.22. Tow buoys behind longlining boats to reduce seabird bycatch -- 8.23. Dye baits to reduce seabird bycatch -- 8.24. Use high-visibility longlines to reduce seabird bycatch -- 8.25. Use a sonic scarer when setting longlines to reduce seabird bycatch -- 8.26. Weight baits or lines to reduce longline bycatch of seabirds -- 8.27. Use shark liver oil to deter birds when setting lines -- 8.28. Thaw bait before setting lines to reduce seabird bycatch -- 8.29. Reduce seabird bycatch by releasing offal overboard when setting longlines -- 8.30. Use bird exclusion devices such as 'Brickle curtains' to reduce seabird mortality when hauling longlines -- 8.31. Use acoustic alerts on gillnets to reduce seabird bycatch -- 8.32. Use high-visibility mesh on gillnets to reduce seabird bycatch -- 8.33. Reduce gillnet deployment time to reduce seabird bycatch -- 8.34. Mark trawler warp cables to reduce seabird collisions -- 8.35. Reduce 'ghost fishing' by lost//discarded gear -- 8.36. Reduce bycatch through seasonal or area closures -- 9. Threat: Human intrusions and disturbance -- Key messages -- 9.1. Use wildlife refuges to reduce hunting disturbance -- 9.2. Use signs and access restrictions to reduce disturbance at nest sites -- 9.3. Set minimum distances for approaching birds (buffer zones) -- 9.4. Provide paths to limit the extent of disturbance -- 9.5. Reduce visitor group size -- 9.6. Use voluntary agreements with local people to reduce disturbance -- 9.7. Start educational programmes for personal watercraft owners -- 9.8. Habituate birds to human visitors. , 9.9. Use nest covers to reduce the impact of research on predation of ground-nesting seabirds.
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  • 5
    Online Resource
    Online Resource
    La Vergne :Royal Society of Chemistry, The,
    Keywords: Local government -- Pakistan. ; Public administration -- Pakistan. ; Administración local. ; Administración pública. ; Pakistán. ; Electronic books.
    Description / Table of Contents: This book discusses, in relatively simple language, the importance of even minute amounts of certain trace elements for the protection of human health and how insufficiency or excess may produce serious diseases. It also examines the use of metal chelators in the treatment of such diseases.
    Type of Medium: Online Resource
    Pages: 1 online resource (136 pages)
    Edition: 1st ed.
    ISBN: 9781847552198
    Series Statement: Issn Series
    DDC: 612.3/924
    Language: English
    Note: Trace Element Medicine And Chelation Therapy -- Contents -- Chapter 1 Introduction -- What is Life? -- Evolution -- Composition and Structure of Living Systems -- Further Reading -- Chapter 2 The Elemental Composition of the Human Body -- The Elements in the Human Body -- Supplying Elements to the Body -- Metals and Human Health -- Further Reading -- Chapter 3 Metal Ions, Complexes, and Chemical Speciation -- Elements and the Periodic Table -- Solvents In Vivo -- Coordination Complexes -- Bonding -- Chelation -- Metal-Ligand Selectivity -- Hard and Soft Acids and Bases -- Bio-inorganic Chemistry -- Oxidation-Reduction Reactions -- Hydrolysis of Complexes -- Polynuclear Complexes -- Uncharged Metal-Ligand Complexes -- Labile and Inert Complexes -- Chemical Speciation Modelling -- Further Reading -- Chapter 4 Chelation, Ligands, and Drugs -- Bonding to Transition Metal Ions -- The Chelate Effect -- Metal-Ligand Selectivity, a Combination of the Chelate Effect and the HSAB Approach -- Metabolic Specificity In Vivo -- Chelating Drugs Designed for Mobilizing and/or Excreting Metal Ions from Humans -- Further Reading -- Chapter 5 Delivery of Trace Elements to Humans -- Means of Mineral Supplementation -- Absorption of Ligands from the Gastrointestinal Tract -- Iron, Zinc, and Copper Supplementation -- Biochemistry of Trace Element Delivery -- Further Reading -- Chapter 6 Agents Containing Metals -- Recommended Daily Amounts and Biological Half-lives -- Foods -- Food Additives -- Flavour Stimulants -- Supplements -- 'Health Foods' -- Folklore and Alternative Medicines -- Healthcare Agents -- Cosmetics -- Therapeuticals -- Chelation and Anticancer Activity -- Ulcer Therapy using Bismuth Compounds -- Parenteral Nutrition -- Wound Dressings -- Skin Protection and Decontamination -- Metals as Radioprotective Agents -- Meaningful Therapies. , Concluding Remarks -- Further Reading -- Chapter 7 Chelating Agents and Therapy -- Introduction -- Selectivity of Ligand Drugs for Metal Ions using Formation Constant Data -- EDTA, its Evolution, and Use -- Chemical Properties of EDTA -- In Vivo Chelation of Radionuclides -- Toxicity of EDTA -- Nephrotoxicity and Heavy Metal Chelates -- Rate of Administration and Dosage of EDTA -- Sulfur-containing Agents -- Removal of an Excess of an Essential Metal, e.g. Iron -- Excretion and 'Topping-up' Therapy -- Criteria of Success -- Metal Complexes used in Diagnosis and Chemotherapy -- Concluding Remarks -- Further Reading -- Chapter 8 Dietary and Environmental Aspects -- Diet -- National Food Surveys -- Crop Protection -- Food Fortification -- Food Intolerance -- Foods Linked with Health and a Longer Life -- Environmental Aspects -- Further Reading -- Chapter 9 The Future -- Subject Index.
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  • 6
    Keywords: Metals ; Solution (Chemistry) ; Metal ions ; Biologisches System ; Metallion ; Metall ; Organismus
    Type of Medium: Book
    Pages: XII, 172 S , Ill., graph. Darst
    Edition: 1. publ
    ISBN: 044209499X
    DDC: 574.1/9214
    RVK:
    Language: English
    Note: Literaturangaben
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  • 7
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 10 (1998), S. 1243-1245 
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Combination modes appear in the spectrum of the surface pressure signals when a circular cylinder is forced to oscillate at a frequency different from the von Karman vortex shedding frequency. The spatial symmetry of the sum and difference modes depends on the direction of cylinder oscillation, and is predictable with a simple set of symmetry relations. As a result of the symmetry relations, cross-flow oscillations of the cylinder aimed at enhancing fluctuating lift also channel energy into the fluctuating drag component through the combination modes. © 1998 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 3 (1991), S. 2047-2049 
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: The cross-flow symmetry properties of interacting nonlinear disturbances have been studied experimentally in the wake of a circular cylinder. It is shown using modal decomposition that the interaction between two symmetric or two antisymmetric modes produces symmetric combination modes, while the interaction between a symmetric and an antisymmetric mode produces antisymmetric combination modes.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 30 (1987), S. 2283-2285 
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: It is demonstrated that a scanning laser anemometer is capable of measuring rapid and randomly occurring flow events. Mean and instantaneous velocity profiles in the near wake of a cylinder at Reynolds number of 155 are shown together with spatial correlations. In addition, the scanning laser anemometer has been used to show that the mean velocity defect behind the cylinder can be substantially reduced, when the wake is disturbed by unsteady forcing with a line of small pulsating jets emanating from the trailing edge of the cylinder.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 5 (1993), S. 1657-1660 
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Detailed velocity measurements have been made to investigate the structure of the low-frequency vortex dislocations that appear in the indigenous wake of a circular cylinder. It is shown that one mechanism for the production of vortex dislocations is the superposition of two waves with slightly different frequencies, where the higher frequency wave is parallel to the cylinder axis and the lower frequency is an oblique wave. In contrast to the discrete vortex concept that implies discontinuous shedding frequencies, the measured amplitude and phase distribution of the interacting waves are shown to be continuous along the span of the cylinder. Both waves (parent modes) exist simultaneously and overlap in the wake. The difference mode associated with the vortex dislocations is produced by the nonlinear interaction of the parent modes, and its maximum amplitude is at the location where the parent modes have comparable magnitude. The spanwise phase and amplitude distributions of the difference mode are "predicted'' by taking the product of the complex wave amplitudes of the parent modes.
    Type of Medium: Electronic Resource
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