specific storagespecific strain energyspecific surfacespecific volumespecific weightspecific workspecific yieldspecificationsspecified compressive strengthspecified speedspecified strengthspecified stressspecimenspectraspectral intensityspectrographic analysisspeedspeed change lanespeed controlspeed density relationshipspeed deterrentspeed deterrent vehiclespeed measurementspeed measuring devicespeed slopespeed variationspeed volume relationshipspeedingspeedometerspherical shellspherical stress tensorspherical wedgesphericitysphericity of aggregatespheroidspider networkspider network assignmentspikespike knotspillspill waterspillwayspillway apronspillway capacityspillway componentsspillway design floodspillway elementsspillway entrancespillway operationspillway slab