cyclical stress

См. также в других словарях:

• Cyclical asymmetry — is an economic term which describes any large imbalance in economic factors that occur due to purely cyclical reactions by a market or nation. This can include employment rates, debt retention, interest rates, bond strengths, or stock market… …   Wikipedia

• Cyclic stress — in engineering refers to an internal distribution of forces (a stress) that changes over time in a repetitive fashion. As an example, consider one of the large wheels used to drive an aerial lift such as a ski lift. The wire cable wrapped around… …   Wikipedia

• Fracture toughness — In materials science, fracture toughness is a property which describes the ability of a material containing a crack to resist fracture, and is one of the most important properties of any material for virtually all design applications. It is… …   Wikipedia

• Wind turbine — Offshore wind farm using 5MW turbines REpower 5M in the North Sea off Belgium This article discusses wind powered electrical generators. See windmill for wind powered machinery used to grind grain or pump water. A wind turbine is a device that… …   Wikipedia

• Agriculture and Food Supplies — ▪ 2007 Introduction Bird flu reached Europe and Africa, and concerns over BSE continued to disrupt trade in beef. An international vault for seeds was under construction on an Arctic island. Stocks of important food fish species were reported… …   Universalium

• Bicycle frame — Steel frame of 2000 LeMond Zurich road racing bicycle mounted in a work stand …   Wikipedia

• Hip replacement — Hip replacement, also hip arthroplasty, is a surgical procedure in which the hip joint is replaced by a prosthetic implant. Such joint replacement orthopaedic surgery generally is conducted to relieve arthritis pain or fix severe physical joint… …   Wikipedia

• Hither Green rail crash — infobox UK rail accident title= Hither Green rail crash date= 5 November 1967 21:16 location= Hither Green Depot line = Hastings Line (BR Southern Region) cause= Broken rail trains= 1 pax= full train, some standing deaths= 49 injuries= 78 The… …   Wikipedia

• dormancy — /dawr meuhn see/, n. the state of being dormant. [1780 90; DORM(ANT) + ANCY] * * * ▪ biology Introduction       state of reduced metabolic activity adopted by many organisms under conditions of environmental stress or, often, as in winter, when… …   Universalium

• Unemployment — World unemployment rates[1] as of January 2009[update] Unemployment (or …   Wikipedia

• Earth Sciences — ▪ 2009 Introduction Geology and Geochemistry       The theme of the 33rd International Geological Congress, which was held in Norway in August 2008, was “Earth System Science: Foundation for Sustainable Development.” It was attended by nearly… …   Universalium