Big Chemical Encyclopedia

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

Articles Figures Tables About

Division defined

Figure 51.3 provides an example of a typical work breakdown stmcture. The major divisions define specific, logical task groupings as well as the cost-accounting classifications. In the example, cost should be acquired for the preparation of the foundation, installation and final com-misioning of the pump and motor. In addition, each of the sub-tasks that comprise these classifications are logical groups of tasks that must be completed in sequence and by different work classifications. [Pg.821]

This division defines and enumerates those drugs that are defined by a Standard in Canada including ... [Pg.105]

A department (e.g., laboratory, unit, division) defines a group of users, each of which has explicit rights on content editing and signing for electronic records. Each user may be a member of multiple departments, having different rights in each department. [Pg.329]

FIGURE 2.7. All the energy levels of a molecule are divided into two groups, A and B. This division defines the two species A and B. [Pg.52]

The percent strain limits are arbitrary relative divisions defining the behavior. The above definitions of a brittle and ductile material assume that the reference temperature is room temperature. It is best to refer to ductile behavior and brittle behavior, rather than define materials as ductile or brittle. A material that is brittle at room temperature will be ductile at some elevated temperature, and a material that is ductile at room temperature will exhibit brittle behavior at a low-enough temperature. Ductile and brittle are relative terms. The point is that mechanical properties, particularly for polymers, are highly dependent on temperature. [Pg.30]

Division of matrices is not defined, but the equivalent operation of multiplieation by an inverse matrix (if it exists) is defined. If a matr ix A is multiplied by its own inverse matrix, A , the unit matrix I is obtained. The unit matrix has Is on its prineipal diagonal (the longest diagonal from upper left to lower right) and Os elsewhere for example, a 3 x 3 unit matrix is... [Pg.34]

Looking at the matrix equation Ax = b, one would be tempted to divide both sides by matrix A to obtain the solution set x = b/A. Unfortunately, division by a matrix is not defined, but for some matrices, including nonsingular coefficient matrices, the inverse of A is defined. [Pg.51]

Handbook 44 defines five accuracy classes for scales in terms of the value of the scale division and the number of divisions. Class I appHes to precision laboratory weighing. Class II appHes to laboratory weighing (precious metals, gems, and grain test scales). Class III appHes to the majority of industrial and retail scales, and to all scales not specified in the other categories. Class III L appHes to vehicle, Hvestock, railway, crane, and hopper scales. Class nil appHes to portable scales used for highway weight enforcement. [Pg.329]

Table 1 is condensed from Handbook 44. It Hsts the number of divisions allowed for each class, eg, a Class III scale must have between 100 and 1,200 divisions. Also, for each class it Hsts the acceptance tolerances appHcable to test load ranges expressed in divisions (d) for example, for test loads from 0 to 5,000 d, a Class II scale has an acceptance tolerance of 0.5 d. The least ambiguous way to specify the accuracy for an industrial or retail scale is to specify an accuracy class and the number of divisions, eg. Class III, 5,000 divisions. It must be noted that this is not the same as 1 part in 5,000, which is another method commonly used to specify accuracy eg, a Class III 5,000 d scale is allowed a tolerance which varies from 0.5 d at zero to 2.5 d at 5,000 divisions. CaHbration curves are typically plotted as in Figure 12, which shows a typical 5,000-division Class III scale. The error tunnel (stepped lines, top and bottom) is defined by the acceptance tolerances Hsted in Table 1. The three caHbration curves belong to the same scale tested at three different temperatures. Performance must remain within the error tunnel under the combined effect of nonlinearity, hysteresis, and temperature effect on span. Other specifications, including those for temperature effect on zero, nonrepeatabiHty, shift error, and creep may be found in Handbook 44 (5). The acceptance tolerances in Table 1 apply to new or reconditioned equipment tested within 30 days of being put into service. After that, maintenance tolerances apply they ate twice the values Hsted in Table 1. Table 1 is condensed from Handbook 44. It Hsts the number of divisions allowed for each class, eg, a Class III scale must have between 100 and 1,200 divisions. Also, for each class it Hsts the acceptance tolerances appHcable to test load ranges expressed in divisions (d) for example, for test loads from 0 to 5,000 d, a Class II scale has an acceptance tolerance of 0.5 d. The least ambiguous way to specify the accuracy for an industrial or retail scale is to specify an accuracy class and the number of divisions, eg. Class III, 5,000 divisions. It must be noted that this is not the same as 1 part in 5,000, which is another method commonly used to specify accuracy eg, a Class III 5,000 d scale is allowed a tolerance which varies from 0.5 d at zero to 2.5 d at 5,000 divisions. CaHbration curves are typically plotted as in Figure 12, which shows a typical 5,000-division Class III scale. The error tunnel (stepped lines, top and bottom) is defined by the acceptance tolerances Hsted in Table 1. The three caHbration curves belong to the same scale tested at three different temperatures. Performance must remain within the error tunnel under the combined effect of nonlinearity, hysteresis, and temperature effect on span. Other specifications, including those for temperature effect on zero, nonrepeatabiHty, shift error, and creep may be found in Handbook 44 (5). The acceptance tolerances in Table 1 apply to new or reconditioned equipment tested within 30 days of being put into service. After that, maintenance tolerances apply they ate twice the values Hsted in Table 1.
Flavor has been defined as a memory and an experience (1). These definitions have always included as part of the explanation at least two phenomena, ie, taste and smell (2). It is suggested that in defining flavor too much emphasis is put on the olfactory (smell) and gustatory (taste) aspects (3), and that vision, hearing, and tactile senses also contribute to the total flavor impression. Flavor is viewed as a division between physical sense, eg, appearance, texture, and consistency, and chemical sense, ie, smell, taste, and feeling (4). The Society of Flavor Chemists, Inc, defines flavor as "the sum total of those characteristics of any material taken in the mouth, perceived principally by the senses of taste and smell and also the general senses of pain and tactile receptors in the mouth, as perceived by the brain" (5). [Pg.10]

The growth inhibitory mechanism of the thiocarbamate herbicides, eg, EPTC, butylate, cycloate, diaHate, and triaHate, is not well defined. Cell elongation, rather than cell division, appears to be inhibited (183), although mitotic entry may be inhibited by diaHate (184). Thiocarbamates have a greater effect on shoot than toot tissue (163,184). The weU-documented inhibition of Hpid synthesis by thiocarbamates certainly contributes to the observed inhibitions of cell division and elongation. These compounds may also inhibit gibbereUic acid synthesis (185). [Pg.46]

Introduction The Introduction contains the scope of the division and defines the responsibilities of the user, the manufacturer, and the inspector. The scope defines pressure vessels as containers for the containment of pressure. It specifically excludes vessels having an internal pressure not exceeding 103 kPa (15 Ibf in") and further states that the rules are applicable for pressures not exceeding 20,670 kPa (3000 Ibf/in"). For higher pressures it is usually necessary to deviate from the rules in this division. [Pg.1024]

Appendixes Appendix 1 defines the basis used for defining stress-intensity values. Appendix 2 contains external-pressure charts, and Appendix 3 has the rules for bolted-flange connec tions these two are exact duplicates of the eqiiivalent appendixes in Division 1. [Pg.1026]

By virtue of its division into six sections, this text may be used in several ways. Part I, by itself, provides the material for a short course to introduce a diverse group of students to the subject—with the other five parts serving as a built-in reference book. Parts I, II, and II, which define the problem, can provide the basis for a semester s work, while Parts IV, V, and VI, which resolve the problem, provide the material for a second semester s work. Part IV may well be used separately as the basis for a course on the meteorology of air pollution, and the book as a whole may be used for an intensive one-semester course. [Pg.585]

In Table 13-2, the numerator of a well-known group is identified by the arrowhead, while the denominator is assigned by the tail of die aiTow. For example, the Damkdhler I represents the division of the dimensions representing die generation per unit volume by die dimensions representing die transport of mass by eonveetion. This is defined as ... [Pg.1042]

The quantity aAp is defined separately for each type of cooling tower. It depends on many variables jet pressure, jet division, airflow velocity, and others. The total energy balance for a cooling tower is (see Fig. 4.19)... [Pg.99]

The fin efficiency is defined by the division of the actual by the theoretical heat transfer, i.e.. [Pg.699]

Define the location of work, departments, groups, and divisions. [Pg.122]

An appropriate division of the efforts just mentioned is helped by defining two areas of composite material behavior, micromechanics and macromechanics ... [Pg.122]

This report is by Battelle Columbus Division to the Line Pipe Research Supervisory Committee of the American Gas Association. It presents an analysis of statistical data obtained from reports of lea)c or rupture (service) incidents and test failures in natural gas transmission and gathering lines over the 14.5 year period from 1970 through June, 1984. All gas transmission companies were required to notify the Office of Pipeline Safety Operations in the event of a "reportable" incident, as defined by the Code of Federal Regulations. The purpose of the study is to organize the reportable incident data into a meaningful format from which the safety record of the industry can be assessed. [Pg.111]

In Chapter 3, we studied the topic of population analysis. In population analysis, we attempt a rough-and-ready numerical division of the electron density into atom and bond regions. In Mulliken theory, the bond contributions are divided up equally between the contributing atoms, giving the net charges. The aim of the present section is to answer the questions Are there atoms in Molecules , and if so, How can they be defined . According to Bader and coworkers (Bader, 1990) the answers to both questions are affirmative, and the boundaries of these atoms are determined by a particular property of the electron density. [Pg.316]

The Natural Atomic Orbitals for atom A in the molecular environment may be defined as those which diagonalize the block, NAOs for atom B as those which diagonalize the D block etc. These NAOs will in general not be orthogonal, and the orbital oecupation numbers will therefore not sum to the total number of electrons. To achieve a well-defined division of the electrons, the orbitals should be orthogonalized. [Pg.230]

FPN) Nonincendive circuit is defined in Article 100. For further information, see Electrical Equipment for Use in Class I, Division 2 Hazardous (Classified) Locations, ANSI/ISA-S12.12-1984. [Pg.637]

Sealing. Approved seals shall be provided in accordance with Section 501-5. Sealing requirements in Sections 501-5(a) (4) and (b) (2) shall apply to horizontal as well as to vertical boundaries of the defined Class 1 locations. Buried raceways under defined Class 1 locations shall be considered to be within a Class 1, Division 1 location. [Pg.645]

Matrix division is not defined, although if C is a square matrix, C (the inverse of C) can usually be defined so that... [Pg.71]

Microbial growth was discovered with replication of each cell to three daughter cells. With the growth data define the mean time for the cell divisions. Table E.10.1 shows the cell dry weight increases with culture incubation time. [Pg.126]

The eukaryotic somatic cell cycle is defined by a sequential order of tasks a dividing cell has to complete it must replicate its DNA, segregate its chromosomes, grow, and divide. The cell cycle can be divided into four discrete phases. DNA replication is restricted to S phase (DNA synthesis phase), which is preceded by a gap phase called G1 and followed by a gap phase called G2. During mitosis (M phase) the sister chromatids are segregated into two new daughter nuclei and mitosis is completed by the division of the cytoplasm termed cytokinesis (Fig. 1). [Pg.340]

In dealing with radical-radical termination in bulk, polymerization it is common practice to divide the polymerization timeline into three or more conversion regimes.2 "0 The reason for this is evident from Figure 5.3. Within each regime, expressions for the termination rate coefficient are defined according to the dominant mechanism for chain end diffusion. The usual division is as follows ... [Pg.244]

Integers and exact numbers In multiplication or division by an integer or an exact number, the uncertainty of the result is determined by the measured value. Some unit conversion factors are defined exactly, even though they are not whole numbers. For example, 1 in. is defined as exactly 2.54 cm and the 273.15 in the conversion between Celsius and Kelvin temperatures is exact so 100.000°C converts into 373.150 K. [Pg.911]

A three-dimensional meshwork of proteinaceous filaments of various sizes fills the space between the organelles of all eukaryotic cell types. This material is known collectively as the cytoskeleton, but despite the static property implied by this name, the cytoskeleton is plastic and dynamic. Not only must the cytoplasm move and modify its shape when a cell changes its position or shape, but the cytoskeleton itself causes these movements. In addition to motility, the cytoskeleton plays a role in metabolism. Several glycolytic enzymes are known to be associated with actin filaments, possibly to concentrate substrate and enzymes locally. Many mRNA species appear to be bound by filaments, especially in egg cells where they may be immobilized in distinct regions thereby becoming concentrated in defined tissues upon subsequent cell divisions. [Pg.85]


See other pages where Division defined is mentioned: [Pg.75]    [Pg.1964]    [Pg.280]    [Pg.3]    [Pg.137]    [Pg.321]    [Pg.75]    [Pg.1964]    [Pg.280]    [Pg.3]    [Pg.137]    [Pg.321]    [Pg.46]    [Pg.47]    [Pg.192]    [Pg.760]    [Pg.1024]    [Pg.78]    [Pg.18]    [Pg.341]    [Pg.243]    [Pg.53]    [Pg.317]    [Pg.681]    [Pg.649]    [Pg.113]   
See also in sourсe #XX -- [ Pg.608 ]




SEARCH



© 2024 chempedia.info