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Museum Wormianum Dets Forudsætninger og Tilblivelse.Schepelern, H. D. January 1971 (has links)
Thesis--Copenhagen. / Summary in English. Bibliography: p. 384-401.
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Geometric Measurements for Double-Enveloping WormsSu, Teng-Fa 09 September 2004 (has links)
Double-enveloping reducer is widely used in the industry due to its high transmission torque and high accuracy. The screw theory and the rigid-body transformation method are introduced and applied in this thesis to the determination of the worm surface. The equation of the worm surface is derived by the two methods based on different geometries of cutting tools (conical cutter and fly cutter).
According to the Standards of American Gear Manufacturers Association (AGMA6030 C-87), the size and the shape of the cutters can be determined to conform the worm offset surface. Moreover, a measuring system is set up with a CMM (coordinate measuring machine) to measure and record the center point of the touch probe when it contacts with the surface of the double-enveloping worm. Finally, comparisons of measured results with different theoretical worm offset surfaces obtained from two types of cutting tools are made in this study. Geometric errors of the measured worm offset surface shows that the worm used in this thesis was machined by cutters with a conical form.
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Automated Defense Against Worm Propagation.Patwardhan, Sudeep 12 1900 (has links)
Worms have caused significant destruction over the last few years. Network security elements such as firewalls, IDS, etc have been ineffective against worms. Some worms are so fast that a manual intervention is not possible. This brings in the need for a stronger security architecture which can automatically react to stop worm propagation. The method has to be signature independent so that it can stop new worms. In this thesis, an automated defense system (ADS) is developed to automate defense against worms and contain the worm to a level where manual intervention is possible. This is accomplished with a two level architecture with feedback at each level. The inner loop is based on control system theory and uses the properties of PID (proportional, integral and differential controller). The outer loop works at the network level and stops the worm to reach its spread saturation point. In our lab setup, we verified that with only inner loop active the worm was delayed, and with both loops active we were able to restrict the propagation to 10% of the targeted hosts. One concern for deployment of a worm containment mechanism was degradation of throughput for legitimate traffic. We found that with proper intelligent algorithm we can minimize the degradation to an acceptable level.
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Life history patterns and the role of disturbance in intertidal and subtidal populations of the polychaete Phragmatopoma lapidosa lapidosa in the sub tropical western AtlanticMcCarthy, Daniel Anthony January 2001 (has links)
No description available.
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Phosphagens and the adenylate energy charge in two species of polychaete wormBestwick, B. W. January 1987 (has links)
No description available.
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Schistosoma mansoni : Studies of antigenic expression and immune recognition in infected and vaccinated guinea pigsRogers, M. V. January 1986 (has links)
No description available.
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Histology, ultrastructure and immunocytochemistry of the neurosecretory systems of earthwormsMcArthur, F. K. January 1987 (has links)
No description available.
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Immunity to filarial nematodesStorey, N. January 1985 (has links)
No description available.
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Schistosoma mansoni : studies on the development of the female reproductive systemRoberts, J. E. January 1986 (has links)
The work presented in this thesis consists of an investigation into the development of the female reproductive system of the human blood fluke Schistosoma mansoni. Worms were examined both under the light and electron microscopes, at all ages from 20 to 70 days post-infection. An investigation was also carried out into the various factors which affect the rate of development of the reproductive system. The development of the female system as a whole, as observed under the light microscope, is examined in Chapter 1, with a detailed examination of the ultrastructural development of each individual section of the system as observed using the electron microscope being presented in the succeeding chapters. Several factors were found to have an effect on the development of the female worms. These were the age of the worms themselves, the sex-ratio of the population as a whole and the population size. However, only the first two factors were found to effect the sexual development, the population size only affecting the overall size of the worms. The ultrastructure of the various components of the female reproductive system was observed at ages ranging from 20 to 70 days post-infection and the method of development of each component has been described as far as possible.
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Studies on the migration and transmission of Brugia pahangi infective larvae in Aedes aegyptiLindsay, Steven William January 1984 (has links)
No description available.
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