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  • 1
    Electronic Resource
    Electronic Resource
    Purine N-Oxides. XIV. A Total Synthesis of a Pyrimidine N-Oxide, a Pteridine 1-N-Oxide, and Xanthine 3-N-Oxide1 (1965)
    s.l. : American Chemical Society
    The @journal of organic chemistry 30 (1965), S. 408-410 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo01013a024
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  • 2
    Electronic Resource
    Electronic Resource
    Some 2-Substituted Aminopurines and Purine Analogs1 (1963)
    s.l. : American Chemical Society
    Journal of medicinal chemistry 6 (1963), S. 817-819 
    Details
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jm00342a050
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  • 3
    Electronic Resource
    Electronic Resource
    Addtions and Corrections - Some 2-Substituted Aminopurines and Purine Analogs. (1965)
    s.l. : American Chemical Society
    Journal of medicinal chemistry 8 (1965), S. 894-895 
    Details
    ISSN: 1520-4804
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jm00330a053
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  • 4
    Electronic Resource
    Electronic Resource
    Experimental investigation into a turbulent jet with negative buoyancy (1993)
    New York, NY : American Institute of Physics (AIP)
    Physics of Fluids 5 (1993), S. 2865-2878 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: An experimental investigation of a steady-state negatively buoyant jet has been performed using a hot water jet projected vertically downwards from a 7.5 mm radius inlet pipe into a cold ambient. The Richardson number was 0.1 based on inlet pipe radius and the Reynolds number was 5000. Mean and fluctuating velocities and temperatures, triple velocity correlations and velocity–temperature correlations were measured for the jet in a constant temperature ambient. Correlations between orthogonal velocity components were also measured. Velocity measurements were performed using laser Doppler anemometry (LDA), and errors associated with beam movement (due to refractive index fluctuations) were experimentally quantified. Temperatures were measured with fast response thermocouples. The two techniques were used in conjunction to provide velocity–temperature correlations. The intermittency factors around the edge of the flow were measured optically, employing refractive index as a tracer. The normal stresses were found to be high in the shear region at the jet-flow/reverse-flow interface and in the region of large-scale fluid reversal. The contribution from the intermittency at the boundary of the flow was evident in the velocity and temperature fluctuations. The triple velocity products were interpreted as fluxes of the Reynolds stresses and in general exhibited net fluxes away from the regions of high stress intensity. Balances of the terms in the axial momentum and turbulent kinetic energy equations showed that the main contribution from buoyancy was in the mean motion, with very little direct input to the turbulence field.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.858749
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  • 5
    Electronic Resource
    Electronic Resource
    Drop-formed vortex rings—The generation of vorticity (1995)
    [S.l.] : American Institute of Physics (AIP)
    Physics of Fluids 7 (1995), S. 1363-1370 
    Details
    ISSN: 1089-7666
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Vortex rings are seen to form when dyed water drops strike a water surface and their formation and structure depend on height of fall and surface tension. The assumption that a vortex sheet envelopes the penetrating drop, frequently stated without explanation in the literature, does not explain these factors and this paper shows why it is incorrect. Alternative mechanisms have been proposed in the literature but none explains adequately the vorticity generation or the restriction of vortex ring formation to low Weber numbers. This paper proposes a mechanism based on the generation of vorticity on relaxation of surface stresses at coalescence. The condition that the surface viscous stress be continuous across the water-air interface leads to a boundary condition on vorticity and the total amount of vorticity generated depends on the quantity which can be diffused into the fluid interior from the boundary during coalescence. At low values of Weber number this condition appears to be sufficient to generate enough vorticity to allow flow separation at the surface, such separation being a necessary condition for vortex sheet roll-up and ring production. The existence of a critical Weber number above which vortex rings do not form is the result of a balance between the rate at which the ring of contact moves outward associated with on the one hand, the action of surface tension forces and, on the other, the rate of surface destruction due to the coming together of surfaces. If surface destruction dominates then the fluid elements to which the surface viscous stress boundary condition applies will become part of the fluid interior before diffusion has carried significant vorticity away from the surface. © 1995 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.868524
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  • 6
    Electronic Resource
    Electronic Resource
    Purine N-Oxides. XI. An Activating Effect on Some Displacement Reactions1 (1963)
    s.l. : American Chemical Society
    The @journal of organic chemistry 28 (1963), S. 2560-2563 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo01045a017
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  • 7
    Electronic Resource
    Electronic Resource
    Displacement of the 2-Methylmercapto Group in Pyrimidines Bearing a 5-Nitroso Substituent1 (1963)
    s.l. : American Chemical Society
    The @journal of organic chemistry 28 (1963), S. 2563-2564 
    Details
    ISSN: 1520-6904
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/jo01045a018
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  • 8
    Electronic Resource
    Electronic Resource
    Conservation and management of brown trout, Salmo trutta, stocks in Wales by the Welsh Water Authority (1989)
    Oxford, UK : Blackwell Publishing Ltd
    Freshwater biology 21 (1989), S. 0 
    Details
    ISSN: 1365-2427
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: SUMMARY. 1. The diversity, value and status of the trout resource within the Welsh Water Authority area is described.2. Reported angling catches of sea trout have increased in recent years but there is an apparent decline in brown trout stocks. Factors affecting the distribution, status and diversity of the trout resource are identified and discussed.3. Investigations are being carried out to evaluate the apparent problems and to provide information required to formulate management solutions. A management strategy is proposed which allows for the maintenance and development of the resource, whilst ensuring the preservation of strains of trout which have conservation value in their own right.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2427.1989.tb01352.x
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  • 9
    Electronic Resource
    Electronic Resource
    Post-stocking Movements and Recapture of Hatchery-reared Trout Released into Flowing Waters: Effect of Time and Method of Stocking (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Aquaculture research 13 (1982), S. 0 
    Details
    ISSN: 1365-2109
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Hatchery-reared brown trout Salmo trutta L. (length 23–26 cm) were stocked in the Afon Taf, South Wales. The effects of ‘spot-’ and ‘scatter-planting’ and of stocking at 1 and 4 weeks prior to the start of the angling season were investigated. Data on the percentage recapture and post-stocking movements of the trout were obtained from tag returns.Higher percentage recaptures were recorded for ‘spot-plantings’ (65% and 31%) than for ‘scatter-planting’ (16%). Stockings made 1 week before the start of the angling season yielded better returns (17.1%) than those made 3 weeks earlier (2.2%). Neither ‘spot-’ nor ‘scatter-planting’ resulted in stocked fish contributing to the catch for an appreciably longer period of time.The majority of trout stocked were caught in the area of stocking irrespective of the method or time of planting.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2109.1982.tb00037.x
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  • 10
    Electronic Resource
    Electronic Resource
    Post-stocking movements and recapture of hatchery-reared trout released into flowing waters—a review (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of fish biology 18 (1981), S. 0 
    Details
    ISSN: 1095-8649
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: The success of stocking with hatchery-reared trout has been the subject of varied investigations for the past half-century. Percentage returns are summarised, and literature on the post-stocking movements of hatchery-reared trout is reviewed. Factors affecting the poststocking movements are considered, special attention being paid to studies on industrial rivers. Highest returns are obtained from stockings, with trout of a size suitable for angling, made during or shortly before the angling season. The majority of stocked brown trout, Salmo trutta tend to remain close to the area of stocking, but brook trout, Salvelinus fontinalis and rainbow trout, Salmo gairdneri show greater movement, usually in a down-stream direction. Greater dispersion of all species occurs if they have overwintered prior to capture or have been stocked in‘cold water’or in small upstream stretches of river.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1095-8649.1981.tb03784.x
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