Design Compiler Basics

This section is meant to familiarize the reader with frequently used synthesis terminology. The terms discussed here have been used extensively throughout this book, making it imperative that one develop a clear understanding of them at the very outset. The following section should provide a macro-level perspective of the synthesis process, and the background needed to invoke DC and execute the basic commands. Subsequent chapters discuss the eps in greater detail. 

---

Chapter 9 is devoted to interfaces. This chapter provides a basic discussion on EDIF generated by the Design Compiler. EDIF constructs are explained via an example EDIF schematic generated by the Design Compiler. This chapter also includes discussion on other commonly used interface fomats such as SDF and PDEF. 

The CRC-Elsevier materials selector , 2nd edition, N.A. Waterman, and M.E Ashby CRC Press (1996) ISBN 0412615509. (Now, also available on CD-ROM). Basic reference work. Three-volume compilation of data for all materials includes selection and design guide. The Materials Selector is the most comprehensive and up-to-date comparative information system on engineering materials and related methods of component manufacture. It contains information on the properties, performance and processability of metals, plastics, ceramics, composites, surface treatments and the characteristics and comparative economics of the manufacturing routes which convert these materials into engineering components and products. 

Because the programs are compiled (. exe format), they can be run on any PC under Windows, but by the same token, they can no longer be tinkered with. For most users, this will not constitute a disadvantage, as even the authors of very well designed and documented source code occasionally run into problems when attempting to change some minor detail. Those who habitually tweak every screw they run into are aware that the old GW- or Q-Basic world was a much simpler place than today s universe of objects, mainly because the barebones syntax was easily memorized. 

Kinetic- information is acquired lor two different purposes. Hirst, data are needed lor specific modeling applications that extend beyond chemical theory. These arc essential ill the design of practical industrial processes and are also used io interpret natural phenomena such as Ihe observed depletion of stratospheric ozone. Compilations of measured rate constants are published in the United Stales by the National Institute of Standards and Technology (NISTt. Second, kinetic measurements are undertaken to elucidate basic mechanisms of chemical change, simply to understand the physical world The ultimate goal is control of reactions, but the immediate significance lies in the patients of kinetic behavior and the interpretation in terms of microscopic models. 

This work began as a slim booklet prepared by one of the authors (T.J.B.) to accompany a course on chemical instrumentation presented at the National Institute of Standards and Technology, Boulder Laboratories. The booklet contained tables on chromatography, spectroscopy, and chemical (wet) methods, and was intended to provide the students with enough basic data to design their own analytical methods and procedures. Shortly thereafter, with the co-authorship of Professor Paris D.N. Svoronos, it was expanded into a more extensive compilation entitled Basic Tables for Chemical Analysis, published as a National Institute of Standards and Technology Technical Note (number 1096). That work has now been expanded and updated into the present body of tables. 

According to established dimensionless calculation model of the finite difference and the corresponding boundary conditions above, the Visual Basic language is used to design and compile the... 

As a case in point, reviews made of incident analyses compiled in previous years resulted in the conclusion that, too often, improper lifting by an employee was given as the principal incident causal factor when, in reality, the basic causal factor was work methods design. Improper lifting had been programmed into the work procedure. 

The development of membrane ultrafiltration for the chemical process industry was described by Michaels (131), who reviewed the basic principles, equipment, and types of applications. The useful ranges of available separation processes for molecules and particles of different sizes were compared by Porter and Michaels (132). Available membranes were described with pores of uniform sizes of selected diameters over the range 1-20 nm (10-200 A). A bibliography of applications has been compiled (133). Equipment and information are available from a number of manufacturers, representing a wide range of apparatus design and membrane construction. 

---