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  • 1
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    Salmonid & freshwater Fisheries statistics England & Wales 1989 (2021)
    National Rivers Authority | Lowestoft, UK
    In:  dis@fba.org.uk | http://aquaticcommons.org/id/eprint/10947 | 1256 | 2013-03-26 13:58:11 | 10947 | Environment Agency, UK (Freshwater Biological Association)
    Details
    Publication Date: 2021-06-25
    Description: This is the Salmonid & Freshwater Fisheries Statistics for England & Wales 1989 produced by the National Rivers Authority (NRA) in 1989. This report is focused on the maintenance, improvement and development of fisheries of England and Wales. This report is the first on salmon and migratory trout catch statistics for England and Wales published by the National Rivers Authority (NRA). From 1989 onwards, these statistics will appear each year as NRA fisheries statistics reports replacing the Data Report Series which was published by the Ministry of Agriculture Fisheries and Food (MAFF) Directorate of Fisheries Research. This report makes a general review of different catches: Northumbria, Yorkshire, Anglian, Thames, Southern, Wessex, South West, Severn-Trent, Welsh and North West.
    Description: Environment Agency Archives North West
    Keywords: Fisheries ; Limnology ; Management ; England ; Wales ; Northumbria ; Yorkshire ; Anglian ; Thames ; Southern ; Wessex ; South West ; Severn-Trent ; Welsh ; North West ; Inland waters ; Rivers ; River fisheries ; Freshwater fish ; Fishery management ; Fishery data ; Fish catch statistics ; Migratory species ; Licensing
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 28
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  • 2
    Electronic Resource
    Electronic Resource
    Twin structures in tetragonal SrTiO3: The ferroelastic phase transition and the formation of needle domains (1999)
    [S.l.] : American Institute of Physics (AIP)
    Journal of Applied Physics 86 (1999), S. 1653-1656 
    Details
    ISSN: 1089-7550
    Source: AIP Digital Archive
    Topics: Physics
    Notes: Direct optical observation of the twin domains in ferroelastic strontium titanite at 8 K〈T〈105 K show that twin boundaries in the bulk do not change at temperatures below 103.4 K. At temperatures between 103.4 K and Tc=105.65 K the contrast between the birefringences of two adjacent domains is too weak to allow the visual observation of the domain wall. The temperature independent, coarse domain structure in the bulk of the crystal is in strong contrast with a fine domain structure and strain relaxations near the crystal surface. No indication for wall flip motion was found for repeated, slow cooling, and heating through the transition point. © 1999 American Institute of Physics.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.370942
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  • 3
    Electronic Resource
    Electronic Resource
    Ionization of nitrogen and oxygen acids in strongly basic systems (1973)
    s.l. : American Chemical Society
    Journal of the American Chemical Society 95 (1973), S. 4711-4714 
    Details
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/ja00795a040
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  • 4
    Electronic Resource
    Electronic Resource
    MESO – a program to convert X-ray diffraction data from angular to reciprocal space (1999)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 32 (1999), S. 362-364 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: A computer code has been developed to convert X-ray diffraction data generated by Siemens X-1000 and Siemens HISTAR area detectors and INEL CPS 120 linear detectors from angular to reciprocal space. Programs have been written to visualize and analyse the resulting data using AVS (Advanced Visual Systems Inc., MA, USA). Two examples of the application of MESO to problems in X-ray diffuse scattering are presented. Firstly, the `butterfly' associated with tweed microstructure in the high-temperature superconductor YBa2(Cu1–xMx)3O7–δ. Secondly, the `dog bone' generated by scattering off domain walls in the perovskite-like WO3.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889898017221
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  • 5
    Electronic Resource
    Electronic Resource
    An X-ray photoelectron spectroscopic study of the influence of electrode fabrication on carbon supported Pt + Ru electrodes
    Amsterdam : Elsevier
    Journal of Electroanalytical Chemistry 302 (1991), S. 261-268 
    Details
    ISSN: 0022-0728
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0022-0728(91)85045-Q
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  • 6
    Electronic Resource
    Electronic Resource
    Concon: A code for constrained minimization without derivative computation
    Amsterdam : Elsevier
    Computer Physics Communications 35 (1984), S. C-876 
    Details
    ISSN: 0010-4655
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Computer Science , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1016/S0010-4655(84)82980-X
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  • 7
    Electronic Resource
    Electronic Resource
    CONCON: A code for constrained minimization without derivative computation
    Amsterdam : Elsevier
    Computer Physics Communications 29 (1983), S. 231-236 
    Details
    ISSN: 0010-4655
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Computer Science , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0010-4655(83)90003-6
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  • 8
    Electronic Resource
    Electronic Resource
    Interaction of galena with hydrosulphide ions under controlled potentials (1994)
    Springer
    Journal of applied electrochemistry 24 (1994), S. 513-520 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The surface species produced by the anodic oxidation of hydrosulphide ions at galena surfaces have been determined by X-ray photoelectron spectroscopy. Components in the S(2p) spectrum appeared at binding energies typical of sulphur atoms in an oligosulphide. The relative intensities of these components suggested that lead oligosulphides with sulphur chain lengths of up to S4 (or S8 if a chelate) had been formed on the mineral surface. No evidence was found for the deposition of elemental sulphur. The oligosulphide is associated with a dispersed layer of lead sulphide formed by interaction of oxidized lead species and HS−. Investigations were also carried out on the surface oxidation of galena on exposure to air. Previous findings that the formation of lead hydroxide becomes evident from a shifted component in the Pb(4f) spectrum without any new sulphur environment being apparent from the S(2p) spectrum were confirmed. This behaviour is ascribed to diffusion of lead atoms from the bulk to maintain only a small metal deficiency in a lead-deficient sulphide layer formed concomitantly with lead hydroxide.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00249851
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  • 9
    Electronic Resource
    Electronic Resource
    Electrochemical and XPS studies of the surface oxidation of synthetic heazlewoodite (Ni3S2) (1991)
    Springer
    Journal of applied electrochemistry 21 (1991), S. 575-582 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract X-ray photoelectron spectroscopic (XPS) and electrochemical techniques have been applied to the investigation of the surface oxidation of synthetic heazlewoodite (Ni3S2). The XPS data showed that exposure of the sulphide to air resulted in nickel atoms migrating to the surface to form an overlayer of a hydrated nickel oxide and leave a sulphur-rich heazlewoodite. A hydrated nickel oxide was also produced on immersion of heazlewoodite in acetic acid solution in equilibrium with air, despite nickel being soluble under these conditions. After the acetic acid treatment, the S(2p) spectrum had a component at the binding energy of NiS and a small contribution due to sulphur-oxygen species. Voltammetry with bulk heazlewoodite electrodes, and the ground sulphide in a carbon paste electrode, indicated that, at pH 4.6, the initial anodic product was a sulphur-rich heazlewoodite and that oxidation was inhibited when NiS was formed on the surface. Further oxidation to higher nickel sulphides and elemental sulphur occurred at high potentials. In basic solutions, oxidation was restricted due to the formation of nickel oxide.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01024844
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  • 10
    Electronic Resource
    Electronic Resource
    Relaxation of the lead-deficient sulfide surface layer on oxidized galena (1996)
    Springer
    Journal of applied electrochemistry 26 (1996), S. 899-907 
    Details
    ISSN: 1572-8838
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Electrical Engineering, Measurement and Control Technology
    Notes: Abstract The surface oxidation of galena in air and in aqueous media has been investigated using electron spectroscopy and linear potential sweep voltammetry to elucidate the incongruent oxidation indicated by previous X-ray photoelectron spectroscopic studies. It has been confirmed that the initial oxidation reaction involves the removal of lead atoms from the sulfide lattice to generate a metal-deficient surface layer. It has been shown that, when the mineral is removed from the oxidizing environment, the composition of this layer relaxes slowly back towards that of the bulk mineral as a result of lead atoms diffusing from the bulk to the surface to fill metal vacancies in the sulfide lattice. The relaxation accounts for the absence of a shifted component in sulfur electron spectra from galena exposed to air or basic solutions in equilibrium with air. Correlation of the potential dependence of self-induced flotation and the extent of surface sulfur excess determined electrochemically indicates that a metal-deficiency equivalent to about half a monolayer of excess sulfur is necessary for significant flotation to be effected.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00242041
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