Indentation of an elastic layer bonded to a rigid cylinder—II. Unidirectional slipping with Coulomb friction

A quasistatic, frictionless indentation problem for an incompressible elastic layer(s) bonded to a rigid cylinder is solved by use of a stress function in the form of a series. The method of Yau is then applied to obtain the solution of the dual series equations resulting from the mixed-type boundary condition which categorizes the problem. Although the analysis is given in detail only for a single-layered cylinder, comments on the many-layered case are made and some numerical results are given for a two-layered covering. In addition, some observations are made concerning a specific numerical example typical of rubber-covered steel rolls of the sort used in paper mills.     

Diagnostic messages

An algorithm is presented for the compiler diagnostic phase by the introduction of a dictionary concept with elimination of duplicate words, synonymous words and messages, special symbols and non-uniform spellings. The result is compared with an American Standard COBOL Compiler. This concept can be extended beyond the compilers to all systems which issue extensive messages. It will simplify modularity design and aid in standardization of output format.     

Microelectronics simulation-based training on a virtual campus

Simulation-based training supports active learning, enabling students to acquire complex knowledge and skills. Such training is inevitable whenever knowledge of and experience with professional simulation tools is essential for job fulfilment. Telematics within the training domain enables more openness and flexibility for courses and it offers synchronous and asynchronous training solutions at a distance. MODEM--Multimedia Optimisation and Demonstration in Microelectronics--exploits both technologies to establish a European-wide training service for industry and higher education. MODEM uses a virtual campus to simplify access to its services. MODEM's educational settings differ in degrees of time- and location-independence and provided support.     

Spinal cord compression as initial manifestation of Hodgkin's disease. Report of a case

A case of Hodgkin's disease in which the first clinical manifestation was a radiculo-spinal compression is reported. The authors comment about the possible mechanisms to explain this radiculo-spinal compression in this granulomatosis.     

Assessing the Influence of Power Pools on Emission Constrained Economic Dispatch

Power pools are formal groups of utilities that exchange electricity in order to reduce production costs. The purpose of this paper is to present a framework which assesses the impacts of different types of pooling arrangements on production costs and emissions. The framework is based on a set of economic dispatch models which simulate how different types of pools approach short-term energy exchanges. The models include constraints on emissions, system demand, spinning reserve and unit output. By varying the constraint set, trade-offs between costs and emissions across different types of pools can be quantified. To demonstrate the value of this approach, an illustrative calculation is presented for an existing pool.