Switching mechanism and optimisation research on a pressure-attitude adaptive adjusting coal seam water jet slotter

To investigate the attitude-switching mechanisms of existing jet slotters, which integrate drilling, punching and slotting operations, and to improve its fracture ability, we used the power bond diagram theory to analyse the dynamic flow pressure, and force of slotters.A mathematical model was developed for the dynamic characteristics of slotter sy

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Kernel density surface modelling as a means to identify significant concentrations of vulnerable marine ecosystem indicators.

The United Nations General Assembly Resolution 61/105, concerning sustainable fisheries in the marine ecosystem, calls for the protection of vulnerable marine ecosystems (VME) from destructive fishing practices.Subsequently, the Food and Agriculture Organization (FAO) produced guidelines for identification of VME indicator species/taxa to assist in

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Neurolymphomatosis mimicking neurosarcoidosis: a case report

Abstract Introduction Both neurosarcoidosis and central nervous system lymphoma can be very difficult to diagnose.We describe the case of a patient in whom neurosarcoidosis was strongly suspected, but who was eventually found to have lymphoma.We believe the case to be of interest and practical value to neurologists, oncologists and internists with

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