Stomach ulcers are small infected openings that develop in the stomach lining or, more often, in the area where the intestines close up to the stomach. These injuries are not very common, and it was thought for some time that the cause of stomach ulcers was stress or diets rich in spicy foods.
Materials for Stereolithography. Stereolithography is one of the most advanced and accurate rapid prototyping technologies, which is most ideal for concept modeling, fit-form-function testing and a variety of molding techniques. In an SLA process, the laser is capable of fusing metal, plastic, glass and ceramic particles into a 3D Printed model. Offering a variety of different coloured materials, SLA is an ideal technology for economical and rapid 3D printing.
From Wikipedia, the free encyclopedia. A service-level agreement (SLA) is a part of a service contract where a service is formally defined. Particular aspects of the service-scope, quality, responsibilities-are agreed between the service provider and the service user. A common feature of an SLA is a contracted delivery time (of the service or performance). As an example, Internet service providers and telcos will commonly include service level agreements within the terms of their contracts with customers to define the level(s) of service being sold in plain language terms.