Abstract: The disclosure relates to recombinant host cells including strain modifications effective to improve titer, yield and/or productivity of fatty acid derivatives. The disclosure further relates to cell cultures including the recombinant host cells for the fermentative production of fatty acid derivatives and compositions thereof.

Abstract: Apparatus such as a cofferdam 1, intended to be partially buried in ground beneath water comprises a hollow structural framework. The framework includes chambers 12 which have inlets 29 via which pressurized water can be supplied to the chambers. Each chamber 12 communicates with a plurality of nozzles 36 from which jets of the pressurized fluid issue to break up the ground below. Each chamber 12 also communicates with a plurality of water operated pumps 25 via inlets 24. The pumps 25 are operated by the pressurized water to draw or suck water-suspended solids from below through the pumps via the inlets 32 and discharged from the pumps via outlets 28.

Abstract: A valve system comprising a housing, a main inlet to the housing for pressurized fluid communicating with an outlet from the housing, an auxiliary inlet to the housing for pressurized fluid communicating with the outlet, valve means in the housing movable to open or close communication between the main inlet and the outlet and between the auxiliary inlet and the outlet, and means exposed to the exterior of the housing and actuated by the valve means for indicating the position of the valve means relative to the main inlet and the auxiliary inlet.