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.
Different Types Of Honey Bees. Honey bees are not the same as bumble bees, wasps or yellow jackets. The scientific name for the honey bee that we have in America is Apis mellifera. Apis mellifera is actually one of eight species of honey bees. This is slightly incorrect in that a honey bee carries nectar not honey, but the name still stands. Apis mellifera is a species of honey bee but within that species there are races. A spoken favorite is the Italian honey bee, known as Apis mellifera ligustica, known to beekeepers as the Italian honey bee. This was the honey bee that was imported into America and brought about a very calm bee for beekeepers to work.