The invention comprises a multi-ribbed belt wherein a rib tip has a concave arcuate surface disposed between substantially flat surfaces, which are in turn disposed between rib side surfaces. The substantially flat surfaces are adjacent to curved surfaces which connect to rib side surfaces. The inventive rib profile and rib compound construction significantly reduce rib tip cracking, which significantly reduces belt flex fatigue under high applied frictional torque. Further, the inventive rib profile and rib compound construction significantly reduces high localized tensile stress/strain at the rib tip and highly localized shear stress at the rib flank, thereby significantly reducing rib tip cracking and rib tear off. The inventive belt also comprises a significantly reduced contact normal force, thereby increasing an operating life of the belt.公開了支承結構,用於將傳感器定位在生理通道上,以便測量人體物理、化學和生物學參數並且根據參數的測量值來産生行動。支承結構中包含利用特殊幾何形狀裝配在支承結構上的傳感器,用以獲取連續且無干擾的人體生理數據。通過無綫傳送,例如電磁波、無綫電波、紅外綫、聲波等通過視頻或聲頻傳送而被局部報告。物理和化學參數包括腦功能、代謝功能、流體動力學功能、血液中化合物級別等等。安置在生理通道末端的支承結構包括貼片、夾子、眼鏡、頭部安裝機構等等,其容納着無源或有源傳感器,使傳感器定位於並接觸生理通道。