Adequate lubrication is of the utmost importance in internal combustion engines. Low temperature operation with low-proof alcohol may create some operational problems if alcohol and or water accumulates in the crankcase oil. Condensates of unburned alcohol and water may be blown into the crankcase oil with blow by gases. The...
Groups of second-growth Douglas-fir (Mirb.) Franco were excavated
in plots of two to six trees on two sites in the vicinity of Cowichan
Lake, Vancouver Is., British Columbia. Eleven excavation plots provided
36 trees which could be studied in pairs (a total of 50 pairs) in order
to ascertain the...
A series of experiments were conducted to determine
the utilization of fibrous feeds by the rabbit. A review
of literature was performed to ascertain the results of
similar studies. The first two experiments involved
various levels of alfalfa substituted for corn or barley.
Results indicated that a 50 percent alfalfa...
A problem found in high speed transport aircraft is
excessive tail loading when flying at cruise speeds through
turbulence. Attempts to reduce these areodynamic forces on
the tail may result in unstable aircraft motions. Using a
linear quadratic regulator in conjunction with a Kalman
filter, the feasibility of designing an...
A heuristic is developed to plan loads for containerized cargo ships. It is designed to serve a port which uses gantry cranes (transtainers) and trucks to handle containers. The model recognizes constraints on ship stability, placing containers in a bay with the proper length, placing refrigerated cargo near electrical outlets,...
Polynuclear aromatic hydrocarbons (PNAH) classified as noncarcinogens
may be photooxidized to mutagenic or toxic products by
near-ultraviolet (NUV) wavelengths of sunlight (290-320 nm). The
possibility that this represents a major degredation pathway in the
aquatic environment is of increasing concern. Large quantities of
PNAH from accidental oil spills, anthropogenic and...