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91.
PE Goodacre 《International Journal of Project Management》1983,1(1):29-31
The structure and philosophy of a one-year course in construction management are described. Emphasis is placed on the importance of forgetting old methods and ideas, in order to take full advantage of new technologies, and on the need to allow enough time for effective training. 相似文献
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L. J. Kutz PhD PE V. P. Nelson 《The International Journal of Advanced Manufacturing Technology》1991,6(4):317-327
The automated control of manufacturing devices on a common communications network is a necessity for the factory of the future.
The manufacturing automation protocol (MAP) represents a major effort by a group of companies towards meeting this need, and
apparently is becoming a standard for factory-floor communications. In this project, an ASEA 2000 robot was used with a computer-controlled
ply-cutting machine in a simulated factory sheet-metal cell to demonstrate coordinated inter- and intra-cell communications.
Both machines used a MAP network to send and receive information from the cell-controller computer, and to coordinate cell
operation. The methodology, hardware and software required to adapt the ASEA robot to the MAP network are described. This
methodology will be useful in adapting other computer-controlled manufacturing devices to MAP networks. 相似文献
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AG Brooks F Borrego PE Posch A Patamawenu CJ Scorzelli M Ulbrecht EH Weiss JE Coligan 《Canadian Metallurgical Quarterly》1999,162(1):305-313
The CD94/NKG2 receptors expressed by subpopulations of NK cells and T cells have been implicated as receptors for a broad range of both classical and nonclassical HLA class I molecules. To examine the ligand specificity of CD94/NKG2 proteins, a soluble heterodimeric form of the receptor was produced and used in direct binding studies with cells expressing defined HLA class I/peptide complexes. We confirm that CD94/NKG2A specifically interacts with HLA-E and demonstrate that this interaction is dependent on the association of HLA-E with peptide. Moreover, no interaction between CD94/NKG2A and classical HLA class I molecules was observed, as assayed by direct binding of the soluble receptor or by functional assays using CD94/NKG2A+ NK cells. The role of the peptide associated with HLA-E in the interaction between HLA-E and CD94/NKG2A was also assessed. All class I leader sequence peptides tested bound to HLA-E and were recognized by CD94/NKG2A. However, amino acid variations in class I leader sequences affected the stability of HLA-E. Additionally, not all HLA-E/peptide complexes examined were recognized by CD94/NKG2A. Thus CD94/NKG2A recognition of HLA-E is controlled by peptide at two levels; first, peptide must stabilize HLA-E and promote cell surface expression, and second, the HLA-E/peptide complex must form the ligand for CD94/NKG2A. 相似文献
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Creep-Damage Behaviour of Plates and Shells 总被引:1,自引:0,他引:1
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