Sökning: "piston"
Visar resultat 1 - 5 av 134 avhandlingar innehållade ordet piston.
1. α-Cell signalling in glucose-regulated glucagon secretion
Sammanfattning : Glucagon is a blood glucose-elevating hormone released from α-cells in the islets of Langerhans during hypoglycaemia. Glucagon is critical for glucose homeostasis and inappropriate regulation of its secretion underlies both impaired counter-regulation of hypoglycaemia and chronic hyperglycaemia in diabetes patients. LÄS MER
2. The role of piston bowl shape in controlling soot emissions from heavy-duty Diesel engines
Sammanfattning : .... LÄS MER
3. Wear of piston rings in hydrostatic transmissions
Sammanfattning : This study focuses on the wear of piston rings in a hydraulic radial piston motor. The piston ring has to satisfy increasing demands for reliability and longer service life. It has two contacting surfaces, the face and the flank, and operates under a boundary lubrication state. LÄS MER
4. A mechanical model of an axial piston machine
Sammanfattning : A mechanical model of an axial piston-type machine with a so-called wobble plate and Z-shaft mechanism is presented. The overall aim is to design and construct an oil-free piston expander demonstrator as a first step to realizing an advanced and compact small-scale steam engine system. LÄS MER
5. Modeling of a Free Piston Energy Converter
Sammanfattning : ABSTRACTThe Free Piston Energy Converter (FPEC) is a new type of automotive prime mover, offering high efficiency in conjunction with low emissions. The FPEC essentially consists of two opposing cylinders with a linear alternator incorporated in-between that produces electric power directly. LÄS MER