Equilibrium can be broadly classified as heterogeneous and homogeneous equilibrium. Enzymes possess properties of both homogeneous and heterogeneous catalysts. Homogeneous nucleation is much rarer than heterogeneous nucleation. Catalysts may be classified as either homogeneous or heterogeneous. A variety of heterogeneous and homogeneous catalysts have been developed. OLEP allows to reliably compose related events of a complex scenario across heterogeneous systems. Hence pumped storage systems are crucial when coordinating large groups of heterogeneous generators. Purified human prolactin was scarce, heterogeneous, unstable and difficult to characterize. This allows for a heterogeneous computing model. These conversions are catalyzed by zeolites as heterogeneous catalysts. Its primary use is in enterprise application integration (EAI) of heterogeneous and complex service landscapes. Interfacial relaxation occurs when charge carriers are trapped at interfaces of heterogeneous systems. In the early 1980s, computer scientists began designing systems for interoperability of heterogeneous databases. These knockouts are often difficult to distinguish, especially within heterogeneous genetic backgrounds. Coking is one of several mechanisms for the deactivation of a heterogeneous catalyst.