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Synovial fluid contains lubricin secreted by synovial cells. Chiefly, it is responsible for so-called boundary-layer lubrication, which reduces friction between opposing surfaces of cartilage. There also is some evidence that it helps...

베어링(fluid film bearing)의 압력발생에 대한 기본 원리이다. 이 때 발생한 압력의 크기가 베어링의 하중지지능력(load carrying capacity)를 결정하게 된다. 동압발생원리 나) 최적 쐐기 각도 (optimum wedge shape in slider bearing) 윤활유가 틈새...

coelom fluid from a forward segment is drawn in by the beating of cilia of the nephrostome. From there it is carried through the septum (wall) via a tube which forms a series of loops entwined by blood capillaries that also transfer...

a lubricating mucus, which is either secreted by surface cells or more usually by underlying glands. The mucous membrane in the mouth continues as the thin mucosa which lines the bases of the teeth. The main component of mucus is a...