Key technology issues

As pointed out in the beginning of the chapter—and perhaps also noticeable from the process description earlier—the pultrusion process at first appears rather simple and straightforward however, several intricacies arise on closer inspection. The key technology issues of pultrusion of thermoset-matrix composites are usually considered to be resin formulation, temperature control, material guidance, and die design (not in order of importance). It is typically the skill in these areas that distinguishes a successful pultruder from his hapless competitor. 

In pultrusion of composites with all the reinforcement axially aligned, the pre- and postimpregnation guidance is quite straightforward. In contrast, to place mats, fabrics, and veils corrrectly to form an intricate, thin-walled, and hollow cross-section, such as a window profile, considerable ingenuity, skill, and experience are required. From a composite strength 

Processing and design problems related to the technology issues discussed in the previous sections are usually addressed through trial-and-error type experiments, no doubt with great 

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The Hybrid Sulfur (HyS) thermochemical cycle task addresses the key technology issues involved in the development of a hybrid sulfur hydrogen production system - including the SO2 - H2O electrolyzer design, SO2/O2 separation, and the unique materials and process issues associated with the acid decomposition section. An electrolyser is being developed that can be used in conjunction with the sulfuric acid decomposition section being developed for the S-I cycle in a Hybrid Sulfur Integrated Laboratory-Scale Experiment. 

The key to successful commercialization of gasification systems devoted to power production rests both on maintaining the government R D focused on industry needs and ensuring that the proper key technical issues are being addressed. The sidebar discussion summarizes those factors that have an impact on the future development of the technologies described here. 

Key technical issues facing gasifier technologies on the whole evolve around economies of scale and the fact that most technologies are not suitable for low-rank coals. The primary developmental needs are ... 

Table 11.1 Major technological issues. Key to symbols, ++, best technique for measurement +, acceptable technique for measurement unsuitable for measurement...

The second section reviews documentation in relation to CSV and the procedural controls required for regulated operations. Change management and control, training, and security (introducing key technology-driven services such as user/data authentication and access control), are followed by guidance on source code issues, and suppliers qualifications. 

The purpose of the workshop was to assess the state of the art in this area of information technology and identify key research issues. The papers collected in this volume represent a wide spectrum of topics with the main focus being practicality and real life experiences. 

In addition to quality control over compound collections, the issue of purity of synthetic libraries derived using combinatorial chemistry quickly came under the microscope. In the early to mid-1990s, combichem became a household word throughout the pharmaceutical industry and was believed to be a key technology that would revolutionize drug discovery. The basis of... 

Key Technologies for the 21st Century Scientific American A Special Issue (Scientific American Series). New York W. H. Freeman Co., 1999. 

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