Speciation of some trace metals (Fe, Cu, and Cd) in El-Mex Bay waters, Alexandria, Egypt

Surface- and bottom-water samples were collected from October 1996 to August 1997 to study levels of iron, copper, and cadmium species in their dissolved labile as well as non-labile and particulate forms in the waters of El-Mex Bay. The results showed that the non-labile concentration of the metals was generally more abundant than that of the labile form: its content reached more than 90% of the total dissolved metal for Cu and more than 80% for Fe. The particulate form was almost at the level of the labile form. The annual concentration of the trace metals of the labile form was 13 µglˉ¹ for Fe; 3µglˉ¹ for Cu, and 1.2 µglˉ¹ for Cd in the surface- and bottom-waters.

Multi-objective optimization for multiphase orbital rendezvous missions

A multi-objective optimization approach was proposed for multiphase orbital rendezvous missions and validated by application to a representative numerical problem. By comparing the Pareto fronts obtained using the proposed method, the relationships between the three objectives considered are revealed, and the influences of other mission parameters, such as the sensors' field of view, can also be analyzed effectively. For multiphase orbital rendezvous missions, the tradeoff relationships between the total velocity increment and the trajectory robustness index as well as between the total velocity increment and the time of flight are obvious and clear. However, the tradeoff relationship between the time of flight and the trajectory robustness index is weak, especially for the four- and five-phase missions examined. The proposed approach could be used to reorganize a stable rendezvous profile for an engineering rendezvous mission, when there is a failure that prevents the completion of the nominal mission.

Memoirs and sermons of Wm. J. Armstrong / edited by Hollis Read.

http://www.archive.org/details/memoirsandsermon00armsiala

Alexander Mackay : missionary hero of Uganda.

http://www.archive.org/details/alexandermackay00unknuoft/

Educational missions.

http://www.archive.org/details/educationalmissi008437mbp

Memorial volume of the first fifty years of the American board of commissioners for foreign missions.

http://www.archive.org/details/memorialvolumeof00andeuoft

Christian missions ; their agents, and their results / by T.W.M. Marshall.

http://www.archive.org/details/a592254601marsuoft

Poor Lo! Early Indian missions. A memorial. By Walter N. Wyeth.

http://www.archive.org/details/poorloearlyindia00wyetiala

Historical sketch of the Hawaiian mission : and the missions to Micronesia and the Marquesas Islands / by S.C. Bartlett.

http://www.archive.org/details/historicalsketch00bartiala

Among the Sioux : a story of the Twin Cities and the two Dakotas / by R.J. Creswell ; introduction by David R. Breed.

http://www.archive.org/details/amongsiouxstoryo00cresiala

Christian missions : their agents and their results (vol. 1) / by T.W.M. Marshall.

http://books.google.com/books?vid=ISBN0665456816&id=sipohllLjKQC&dq=protestant+missions&a_sbrr=1 View book via Google

Isaac McCoy : early Indian missions. Isaac McCoy--Christiana McCoy, a memorial / by Walter N. Wyeth ...

http://www.archive.org/details/isaacmccoycarlyi012072mbp

Missions to the heathen / by L.C. Barnes.

http://www.archive.org/details/missionstoheathe00barnrich

Black-robes, or, Sketches of missions and ministers in the wilderness and on the border.

http://www.archive.org/details/blackrobesorsket00nevirich

Christian missions and a new world culture

http://www.archive.org/details/christianmission027881mbp