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To shed light on the architecture of the cytoskeleton, we used the atomic force microscope (AFM) to measure the elasticity, viscoelasticity, and plasticity of L929 cells. The initial elastic response (Young's modulus approximately 4,000 Pa) of the cells to an applied force was followed by a slow compression of the cytoskeleton (tau 1/2 approximately equal(More)
Integrated GPS/INS systems provide an enhanced navigation system that has superior performance in comparison with either system operating in stand-alone mode as it can overcome each of their limitations. The high cost and government regulations prevent the wider inclusion of high quality IMUs to augment GPS as a commercialized navigation system in many(More)
A research study is described that has developed a computerised monitoring and simulation system to provide immediate or real time information on each branch within an underground mine ventilation network through linking of sensors to the ventilation network simulation software. Software has been developed to link underground mine ventilation electronic(More)
In the United States, total carbon (TC) is used as a surrogate for determining diesel particulate matter (DPM) compliance exposures in underground metal/nonmetal mines. Since TC can be affected by interferences and elemental carbon (EC) is not, one method used to estimate the TC concentration is to multiply the EC concentration from the personal sample by a(More)
The stroma layer (SL) cultured from mouse bone marrow cells for one week, had an inhibitory effect on the granulocyte-macrophage progenitor cells (CFU-GM). The inhibitory effect decreased in the 2nd week SL, while the 3rd week SL promoted CFU-GM growth greatly. When indomethacin (1 x 10(-7) mol/L) was added into the CFU-GM culture system, the score of(More)
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