Central mudminnows, Umbra limi, were exposed to the insecticides endrin, chlordane, diazinon and guthion at concentrations of 5.4 X 10(-12) M to 5.4 X 10(-9) M in the aquaria water. Endrin, chlordane ...and diazinon caused significant increase in the frequencies of SCE. The results of these tests in part are in contrast to previous work which did not find endrin to be mutagenic. Our results suggest that the in vivo SCE test is an efficacious method of detecting mutagenic pesticides in water.
Determination of machine direction (MD) and cross-direction (CD) weight profiles is currently available with conventional scanning technology at the dry end of the paper machine. There are many ...reasons why faster determination of these profiles would be extremely useful for papermakers. These reasons include the ability to put on-line control systems into action as soon as possible, particularly CD basis weight control at the headbox. The resulting more uniform CD and MD profiles will speed up the stabilization of the machine and the ability to start manufacturing saleable paper sooner with minimum loss to the broke pit. Fast MD and CD control: Figure 3 shows how the CD sensor array would be used for fast CD and MD control without the need for dry end measurements. The CD profile obtained from the sensor array can be used for immediate CD weight control at the headbox. MD drainage can be adjusted by comparison with a reference cell. With previous knowledge of the furnish characteristics, one can infer the MD sheet weight. Multi-ply dry weight measurement: Figure 5 shows how a CD array may be installed on each ply of a multi-ply machine. This decoupled measurement allows independent CD weight profile control of the individual headboxes. The reel scanner can be used for an absolute reference of the total sheet weight. This enhanced measurement ability will be of particular value in reducing nonuniform CD fibre orientation profiles coming from misadjusted headboxes.
Britannia's Call Baughan, W. F.; Baughan, Charles E.; Stevenson, Robert Louis ...
Musical times and singing class circular, 1844-1903,
02/1901, Letnik:
42, Številka:
696
Book Review, Journal Article
Reviews and other notices Martin, G. H.; Smith, David M.; Brand, Paul ...
Journal of the Society of Archivists,
19/3/1/, Letnik:
12, Številka:
1
Book Review, Journal Article
Medieval Westminster 1200-1540 Gervase Rosser Oxford: Clarendon Press, 1989 xx + 425 pp. illus. £40
Manual of Law French, 2nd edition J.H. Baker Aldershot: Scolar Press, 1990 219 pp. £39.50
Essex ...Wills: The Archdeaconry Courts 1583-1592 Abstracted and edited by F. G. Emmison Chelmsford: Essex Record Office and The Friends of Historic Essex, Essex Wills Series Volume 5, 1989 xviii + 401 pp. £14.95
The Directories of London, 1677-1977 P.J.Atkins Mansell: London and New York, 1990 xii + 732 pp., illus. £60
Discovering Parish Boundaries Angus Winchester Princes Risborough: Shire Publications, 1990 88 pp. 10 black and white plates, 26 maps. £2.50
The Diaries of Jeffery Whitaker, Schoolmaster of Bratton, 1739-1741 Edited by Marjorie Reeves and Jean Morrison Trowbridge: Wiltshire Record Society, Volume XLIV, 1989 for 1988 lxiv +117 pp., illus.
£15 to non-members (available from M. J. Lansdown, 53 Clarendon Road, Trowbridge, Wiltshire BAH 7BS)
Lord Grenville 1759-1834. A Bibliography A. D. Harvey London and Westport, Connecticut: Meckler, 1989 vi + 94 pp. £28
Making Sense of the Census: The Manuscript Returns for England and Wales, 1801-1901 Edward Higgs London: H.M.S.O. for the Public Record Office, 1989 x + 146 pp., illus. £9.95
History and Computing II Edited by Peter Denley, Stefan Fogelvik and Charles Harvey Manchester and New York: Manchester University Press, 1989 xiv + 290pp. £29.95 hardback, £9.95 paper
How to Use a Research Library by David Beasley (New York: Oxford University Press, 1988. 174 pp. £19.50).
Cambridge University Archives: A Classified List D.M.Owen Cambridge: Cambridge University Press, 1989 xiii + 231 pp. £35
A Guide to Manuscripts and Documents in the British Isles Relating to South and South-East Asia. Volume 1, London, Volume 2, British Isles (Excluding London) Compiled by J. D. Pearson London: Mansell, 1989-90 vii + 319 pp; xiii + 337 pp. £60, £70
Government Archives Division General Inventory Series: Records of Federal Royal Commissions (RG 33), Volume 1 James Murray Whalen Ottawa: National Archives of Canada, 1990 xliv + 362 pp.
NEWSPLAN: Report of the NEWSPLAN project in the North Western Region September 1989 -January 1990 Ruth Cowley London: The British Library, 1990 xxxviii + 306 pp. £30
Accessions PGI Documentation Centre No 1/2 - 1989 (Paris: UNESCO, 1990. 52 pp. PGI.90/WS.1)
Traditional restoration techniques: a RAMP study Prepared by V. Vinas and R. Vinas (Paris,UNESCO,1988: PGI-88/WS/17)
Impact of environmental pollution on the preservation of archives and records: a RAMP study Prepared by M. W. Pascoe (Paris, UNESCO, 1988: PGI-88/WS/18)
Study on mass-conservation techniques for treatment of library and archival material Prepared by Wolfgang Wächter under the supervision of Helmuth Rötzsch (Paris, UNESCO, 1989: PGI-89/WS/14)
Review of training needs in preservation and conservation Prepared by D. W. G. Clements, J. M. Mcllwaine, A. C. Thurston and S. A. Rudd (Paris, UNESCO, 1989: PGI-89/WS/15)
Archival principles and practice: a guide for archives management Jeanette White Ford Jefferson, North Carolina, and London: McFarland, 1990 vi + 154 pp., illus. £12.30
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