Secondary stress. A secondary stress is any stress in the structure which is not a primary stress or peak stress. Source: API SPEC 16R, Specification for Marine Drilling Riser Couplings, Exploration and Production Department, First Edition, January 1997. Global Standards.
Two groups of ground nesting bees commonly. found in Michigan are bumble bees and. burrower (andrenid) bees. Bumble bees are. easily recognized by their large, robust, hairy, black and yellow (sometimes orange) bodies. Bumble bees live in colonies of several. hundred individuals, but only the queens.
List of crop plants pollinated by bees. From Wikipedia, the free encyclopedia. This is a list of crop plants pollinated by bees. Most of them are pollinated in whole or part not by honeybees, but by the crop's natural pollinators, like bumblebees, orchard bees, squash bees, and solitary bees.Where the same plants have non-bee pollinators such as birds or other insects, these are also indicated.Pollination by insects is called entomophily.ist of crop plants pollinated by bees. From Wikipedia, the free encyclopedia. This is a list of crop plants pollinated by bees. Most of them are pollinated in whole or part not by honeybees, but by the crop's natural pollinators, like bumblebees, orchard bees, squash bees, and solitary bees.