Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Operations blueprint

Chow, A., A M. Fayon, and Bili Bauman, Simulations Proride Blueprint For Distillation Operation, Chem. Eng. June 7 (1976) p. 1731. [Pg.414]

Von Neumann s machine is actually an example of a universal constructor. It must not only carry out logical operations (i.e. act as a universal computer), but must also be able to identify and manipulate various components. The universal constructor C must be able to both (1) construct the machine whose blueprint appears in symbolic form on its input tape and (2) attach a copy of that same blueprint to the machine once it is constructed. Self-reproduction is the special case where C s input tape actually contains the blueprint data for C itself. Alas, there are a few subtleties. [Pg.571]

Man-made structures and architecture operate under similar constraints. Three factors come together to produce the final object. There is a design in the form of a blueprint, the workforce to manipulate the components, and the components themselves whose physical properties also play a role in determining the ultimate form. One cannot build a car engine from rubber or Wellington boots from steel. Classical Greek architecture... [Pg.95]

Whereas DNA has a single role as the storehouse of genetic information, RNA plays many roles in the operation of a cell. There are several different types of RNA, each having its own function. The principal job of RNA is to provide the information needed to synthesize proteins. Protein synthesis requires several steps, each assisted by RNA. One type of RNA copies the genetic information from DNA and carries this blueprint out of the nucleus and into the cytoplasm, where construction of the protein takes place. The protein is assembled on the surface of a ribosome, a cell component that contains a second type of RNA. The protein is consfructed by sequential addition of amino acids in the order specified by the DNA. The individual amino acids are carried to the growing protein chain by yet a third type of RNA. The details of protein synthesis are well understood, but the process is much too complex to be described in an introductoiy course in chemistry. [Pg.942]

Representation requires that the designer of a typical evolutionary computation algorithm (EA) formulates one inadaptable blueprint for the solution of some problem, then present the variables of that blueprint in a form that is amenable to manipulation by the genetic operators of the EA. Fitness evaluation, on the other hand, has limited GA in two distinct ways (1) it has limited environmental feedback to the confines of a formula or algorithm, which reflects accurately and exclusively the quality of the complete candidate solution from the perspective of the human designer. In addition, (2) fitness evaluation has proven to be the most computationally costly part of a typical EA. Note that elaborate developmental mappings actually increase that computational cost. However, our interest here lies in the limiting effects of representation. [Pg.324]

Factor the spec into model types. If some parts of the pre or postcondition seem to be particularly associated with types in the model, write them there as effects that you use in the system operation specs (Section 3.8.3, Effects factor common postconditions, on page 150). This helps avoid replication in the spec, and allows it to be polymorphic. Although the type model is not necessarily a blueprint for its design, this distribution of concerns obviously looks forward to the distribution of responsibilities in design. effect LibraryManagementSystem Book return () pre borroweronull post etc... [Pg.623]

The documents are reviewed for their adequacy before approval. The document control system is designed to ensure that the information used in the production of the product or parts is clear, complete, correct, and current. No changes can be made without authorization. The system operates within a contractual constraint that requires all products or parts to be built to blueprints, drawings, or other specifications. All personnel are required to immediately report any discrepancy to the proper supervisor so that corrective action can be taken. Documentation shall include one or more of the following, but is not limited to ... [Pg.220]

Production operations are controlled by blueprints, drawings, documented work instructions, specifications, formulations, or proven numerical controlled software. [Pg.226]

Drawing up the blueprint also sets a common language and communicates the shared vision for the level of operational excellence required across the production network. It provides a clear idea of the company s future operating system. Company executives also benefit, as it sets their individual activities in an overarching context. Finally, a blueprint can be codified and expert groups can be established to help roll it out globally. However, caution must be exercised so that this does not lead to yet another corporate standard that is not appropriate for the local sites, and therefore is never realized. [Pg.235]

Category 7—minimal monitoring. Example Supplier customizes a formulation tank. Sponsor reviews and approves the blueprints prior to manufacturing. An installation qualification and operational qualification is planned upon receipt to verify acceptability. Category 2—Enhanced monitoring. Example Well-known supplier of containers/closures supplies multiple lots per year of vials to the sponsor. The sponsor has no historical quality concerns with the supplier. Testing will be conducted upon receipt to verify acceptability of materials. [Pg.353]

Figure 3-3 shows a view of a typical model for an industrial plant. Errors in a plant layout are easily located when three-dimensional models are used, since the operations and construction engineers can immediately see errors which might have escaped notice on two-dimensional templates or blueprints. In addition to increasing the efficiency of a plant layout, models are very useful during plant construction and for instruction and orientation purposes after the plant is completed. [Pg.96]

Validation protocol approvals Installation and operational qualifications, including blueprints or drawings Qualification report(s)... [Pg.3931]

Most of the viruses that contain DNA (e.g., herpes) use this as a direct template for m-RNA production using host cell DNA-directed RNA-polymerase. However, the pox viruses have their own RNA polymerase. Finally, the so-called retroviruses like HIV use their RNA as a blueprint for the production of a complementary DNA strand with the help of an enzyme called reverse transcriptase - an RNA-dependent DNA polymerase. This nomenclature arises from the fact that these organisms operate in reverse of the normal cellular replicative process whereby DNA acts as a blueprint for RNA production. The DNA thus produced is incorporated into host cell DNA with the help of another viral enzyme - HIV integrase - and the cell ultimately produces new viral genomic RNA and viral proteins using its normal replication procedures. [Pg.88]

The preceding scheme was blueprinted by I.G. Farbenindustrie for large-scale operations, in which the ammonium chloride in the p-nitroaniline mother liquor was liberated by the addition of lime, and recovered. The German product was frequently dark and contained acetone insolubles. This handicap could in all probability be remedied by the insertion of a set of small-pressure filters in the line between the holding tubes and the expansion vessel. Experience has shown that such a technique leads to a canary-yellow, finely divided product. [Pg.469]


See other pages where Operations blueprint is mentioned: [Pg.181]    [Pg.181]    [Pg.1092]    [Pg.159]    [Pg.228]    [Pg.97]    [Pg.334]    [Pg.263]    [Pg.1]    [Pg.69]    [Pg.231]    [Pg.111]    [Pg.158]    [Pg.233]    [Pg.234]    [Pg.235]    [Pg.236]    [Pg.32]    [Pg.240]    [Pg.159]    [Pg.915]    [Pg.781]    [Pg.159]    [Pg.473]    [Pg.228]    [Pg.1260]    [Pg.477]    [Pg.745]    [Pg.150]    [Pg.207]    [Pg.220]    [Pg.400]    [Pg.1261]    [Pg.2]    [Pg.1096]    [Pg.64]   
See also in sourсe #XX -- [ Pg.233 ]




SEARCH



Blueprints

© 2024 chempedia.info