Two-dimensional short surface-waves of an oscillating cylinder with arbitrary shape of cross-section

The 2-D short surface waves produced by a partially submerged cylinder which performsarbitrary oscillating motion are discussed. The uniformly valid solution which is applicableto all kinds of cylinder wall cases at waterline point is obtained. It is pointed out that thesolution obtained by Holford[J] for the vertical oscillating motion of a cylinder is incomplete.The reason why his solution cannot go over to that for the case of vertical cylinder wall atwaterline point is also pointed out.

Environmental Assessment of Vancouver Harbour Data Report for the PICES Practical Workshop

Table of Contents [pdf, 0.13 Mb] Section I - Practical Workshop Description [pdf, 21.22 Mb] Section II - Site Description and Oceanography [pdf, 0.40 Mb] Section III - Extended Abstracts Contaminant Concentrations in Sediment and Biota [pdf, 1.36 Mb] Biochemical and Physiological Studies [pdf, 0.77 Mb] Community Studies [pdf, 1.01 Mb] Harmful Algae Studies [pdf, 0.67 Mb] Section IV - Comprehensive Data Tables Site Locations [pdf, 0.10 Mb] Sediment Chemistry [pdf, 0.54 Mb] Tissue Chemistry – Fish [pdf, 1.20 Mb] Tissue Chemistry – Bivalves [pdf, 0.49 Mb] Lipid and Fatty Acids in Mytilus trossulus [pdf, 0.15 Mb] Biochemical, Physiological and Histopathological Parameters [pdf, 1.20 Mb] Biological Community Data – Fish and Mussels [pdf, 0.87 Mb] Biological Community Data – Macrobenthos [pdf, 0.85 Mb] Harmful Algae [pdf, 0.07 Mb] (Document contains 205 pages)

Short communication: Rapid separation of cis9, trans11- and trans7,cis9-18:2 (CLA) isomers from ruminant tissue using a 30 m SLB-IL111 ionic column

[EN]Rumenic acid (cis9,trans11-18:2) is the main natural isomer of conjugated linoleic acid (CLA). Rumenic acid has many purported health benefits, but effects of most other CLA isomers are unknown. Typically trans7,cis9-18:2 is the second most abundant CLA isomer, but it co-elutes with rumenic acid on conventional polar gas chromatography (GC) columns, requiring complimentary analysis with silver-ion high performance liquid chromatography (Ag(+)-HPLC). Herein we report a rapid method for analyzing rumenic acid and trans7,cis9-18:2 using a 30 m ionic-liquid GC column. Optimal resolution of the two CLA isomers was at 145 degrees C and analysis of backfat from barley-fed cattle compared well with GC/Ag(+)-HPLC (y =0.978x - 0.031, r =0.985, P <0.001).

Do tissue carbon and nitrogen limit population growth of weevils introduced to control waterhyacinth at a site in the Sacramento-San Joaquin Delta, California?

Waterhyacinth (Eichhornia crassipes(Mart.) Solms), is a serious problem in the Sacramento Delta. Two weevil species (Neochetina bruchi Hustache and N. eichhorniae Warner) have been introduced as biological control agents. The purpose of this study was to test the hypothesis that nitrogen (N) in the tissue of waterhyacinth was not sufficient to support weevil growth and reproduction. Because it grows better on plants with high N content and because it has a greater impact on the growth of high N plants, N. bruchi may be a more effective biological control agent in the Sacramento Delta.