Major decisions guide

Dow has patented both a fixed bed supported catalyst and a fluidized bed reactor. The fluidized bed has a slightly higher selectivity, and would probably be easier to manage the heat load than the less expensive fixed bed reactor. You should use economics and technical criteria to guide your decision about which reactor technology to use in the plant design, and discuss this major decision in your report. 

The major decision remaining here is how many concepts should be pursued in depth. This is another judgment decision, to be guided by a number of factors How much confidence is there in the first two or three ideas How long will it take to (wove out the uncertainties What resources are... 

The next few steps are very similar to those required in any software project. One of the first stages is the clear definition of the knowledge domain. It must be clear which problems the expert system must solve. It is at this stage not the intention to define how this can be done. Clarity and specificity must be the major guides here. Fuzziness at this stage will, more than in classical software projects, have to be paid for later when different interpretations cause misunderstandings. Equally important is the clear definition of the end user(s). An expert system set up as decision support tool for professionals is totally different from an expert system that can be used as a training support for less professional people. 

There are other topics that might be considered, such as solid state theory and classical statistical mechanics. You must decide how much time to spend on each of your chosen topics. You can identify subtopics that you might omit or to which you can give only an introduction. One of the difficult decisions involves how much to teach about your own research area. You are obviously excited about this area, and will be tempted to spend too much class time on it. Another difficult decision is how much time to spend on topics of current interest such as nanomaterials and environmental chemistry. Your decisions should be guided by the composition of your class. If the class has a lot of premedical students and biochemistry majors in it, they are probably well served by a thorough treatment of thermodynamics and dynamics, and perhaps less well served by a thorough treatment of quantum mechanics and statistical mechanics. If the class is mostly composed of future chemistry graduate students, quantum mechanics and statistical mechanics are more important. 

Four major landmark discoveries, coupled with Einstein s relativistic theory of gravity, have guided mankind to this picture. They are the four great facts that are explained by the Big Bang but that are decidedly difficult for other interpretations of the universe. In chronological order, these decisive discoveries are ... 

When to measure. A major challenge for clinical studies is when to measure. At what point in the process is the end point reached The decision can significantly affect the cost and time of conducting a study. Unfortunately, there are no obvious guides, but there should be sufficient proximity between process and outcome measures to believe the linkage. 

Medicare-approved hospitals responding, 31 did not have a formulary system in place even though Medicare required one/ The second, looking at academic medical centers with 500 beds or more, found that the majority of formularies analyzed were simple drug lists and were not used to guide prescribing decisions. - ... 

There is still room for art in this style of catalyst development. It will usually come up in the first flush of the discovery of a new catalyst, when major effects are visible from sample to sample. Moreover art or intuition will normally guide the creativity of the researcher in making decisions requiring judgment. However, the refinement and rational design of previously optimized catalyst formulations, those well established in industry, will surely best be done on the basis of good science. 

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