Block diagram diagrams

Block diagrams—Diagrams that illustrate the operation, interrelationships, and interdependencies of the fnnctions of a system that are required to show the sequence and the series dependence or independence of functions and operations block diagrams may be constrncted in conjnnction with, or after defining, the system and shall present the system breakdown of its major fnnctions. 

Functional block diagrams— Diagrams that illustrate the operation and interrelationships between functional entities of a system as defined in engineering data and schematics. 

Release zone—An area in and immediately snrrounding a hazardous substance release. It is assumed to pose an immediate health risk to all persons, including first responders. For the purposes of this document, the release zone is always remote from the hospital. This zone is also referred to as the exclusion zone, the red zone, and the restricted zone in other documents. Reliability block diagrams—Diagrams that dehne the series dependence, or independence, of all functions of a system or functional gronp for each life cycle event. 

Functional block diagrams diagrams that illustrate the operation and interrelationships between functional entities of a system as defined in engineering data and schanatics Fungi organisms that lack chlorophyll and must receive food from decaying matter Fusion a reaction in which at least one heavier, more stable nucleus is produced from two lighter, less stable nuclei... 

Reliability block diagrams Diagrams that define the series dependence, or independence, of all functions of a system or functional group for each life-cycle event. 

Fig.l Block diagram of the main operation principles of the AEBIL system ... 

Fig. 1 shows the block diagram of the vibrometer, in which the most sensible to small phase variations interferometric scheme is employed. It consists of the microwave and the display units. The display unit consists of the power supply 1, controller 2 of the phase modulator 3, microprocessor unit 9 and low-frequency amplifier 10. The microwave unit contains the electromechanical phase modulator 3, a solid-state microwave oscillator 4, an attenuator 5, a bidirectional coupler 6, a horn antenna 7 and a microwave detector 11. The horn antenna is used for transmitting the microwave and receiving the reflected signal, which is mixed with the reference signal in the bidirectional coupler. In the reference channel the electromechanical phase modulator is used to provide automatic calibration of the instrument. To adjust the antenna beam to the object under test, the microwave unit is placed on the platform which can be shifted in vertical and horizontal planes. 

The programming language has mainly two parts the front panel and the block diagram. 

The block diagram accompanies each front panel and contains the graphical program. 

Figure Bl.15.4. Block diagram of a typical EPR spectrometer operating at X-band frequencies.

Figure C3.1.6. Block diagram for nanosecond absorjDtion apparatus using multichannel detection. (From Goldbeck R A and Kliger D S 1993 Adethods Enzymol. 226 147-77.)...

Block diagram for a filter photometer with photo showing a typical hand-held instrument suitable for field work. Colorimeterrw is manufactured by Hach Company/photo courtesy of Hach Company. 

Block diagram for a single-beam fixed-wavelength spectrophotometer with photo of a typical instrument. 

Molecular Fluorescence A typical instrumental block diagram for molecular fluorescence is shown in Figure 10.45. In contrast to instruments for absorption spectroscopy, the optical paths for the source and detector are usually positioned at an angle of 90°. 

Block diagram for molecular phosphorescence spectrometer with inset showing how choppers are used to isolate excitation and emission. 

Fig. 5. Block diagram of contact atomic force microscope system in which cantilever deflection monitored optically with position-sensitive photodiode...

The Eastman Chemicals from Coal faciUty is a series of nine complex interrelated plants. These plants include air separation, slurry preparation, gasification, acid gas removal, sulfur recovery, CO /H2 separation, methanol, methyl acetate, and acetic anhydride. A block flow diagram of the process is shown in Eigure 3. The faciUty covers an area of 2.2 x 10 (55 acres) at Eastman s main plant site in Kingsport, Teimessee. The air separation plant is... 

Fig. 3. Overall block flow diagram for Eastman s coal gasification—acetic anhydride complex (35).

Fig. 6. Simplified block flow diagram for the New Zealand gas-to-gasoline (GTG) plant (61). To convert m /h to gal/min, multiply by 4.40. HGT = heavy...

Fig. 3. A block diagram schematic representation of a Fourier transform nmr spectrometer, ie, a superconducting magnetic resonance system.

A reliability block diagram can be developed for the system from the definition of adequate performance. The block diagram represents the effect of subsystem or component failure on system performance. In this preliminary analysis, each subsystem is assumed to be either a success or failure. A rehabihty value is assigned to each subsystem where the appHcation and a specified time period are given. The reUabiUty values for each subsystem and the functional block diagram are the basis for the analysis. 

Series Systems. The series configuration is the most commonly encountered in practice. In a series system, all subsystems must operate successfully for the system to be successful. The rehabihty block diagram is given in Figure 6. 

Example 2. Figure 8 shows a system block diagram iadicating subsystem rehabihties. Applying equation 7 to part A of Figure 8 gives... 

The process implications of equation 3 go beyond the weU-known properties (27—29) of NMP to faciUtate S Ar processes. The function of the aminocarboxylate is also to help solubilize the sulfur source anhydrous sodium sulfide and anhydrous sodium hydrogen sulfide are virtually insoluble in NMP (26). It also provides a necessary proton acceptor to convert thiophenol intermediates into more nucleophilic thiophenoxides. A block diagram for the Phillips low molecular weight linear PPS process is shown in Eigure 1. 

In a typical balanced plant producing vinyl chloride from EDC, all the HCl produced in EDC pyrolysis is used as the feed for oxychlorination. On this basis, EDC production is about evenly spHt between direct chlorination and oxychlorination, and there is no net production or consumption of HCl. The three principal operating steps used in the balanced process for ethylene-based vinyl chloride production are shown in the block flow diagram in Eigure 1, and a schematic of the overall process for a conventional plant is shown in Eigure 2 (76). A typical material balance for this process is given in Table 2. 

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