Big Chemical Encyclopedia

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

Articles Figures Tables About

Variables, types

As standard practice, this resistance is supplied with the relay by the relay manufacturer. It is of variable type, to. suit system conditions and the actual fault level. The... [Pg.482]

When it is required to limit the inrush current a fixed reactance (linear) reactor is more suitable. A variable type reactor will be necessary when it is to be used for voltage regulation or load sharing. In circuits where harmonics may be present, saturated type reactors may be preferred. [Pg.847]

Pneumatic or electric Deriving the energy for maintaining the constant flow rate function from an external source. It can be either of the constant or variable type. [Pg.1442]

System-powered Deriving its energy from the dynamic pressure in the air-stream to maintain its constant flow rate function and can be either a constant or variable type. [Pg.1442]

Variable—Type assigned at declaration and may not be changed value assigned by a numerical or character constant, by input or by an expression. [Pg.124]

This argument has been reviewed in many articles in the past and the corresponding problems in reaching the highest substitution level of the P-Cl bonds in the polydichlorophosphazene deeply analysed [38] therefore, it will not be considered in detail here. What is important to stress in the present paper is that the replacement of these chlorine atoms with variable types of nucleophiles provides many different classes of hydrolytically stable phosp-hazene materials, as reported in Fig. 9. [Pg.178]

The first example deals with poly[bis(trifluoroethoxy)phosphazene],PTFEP, film, whose surface is intrinsically hydrophobic but can be converted to hydrophilic by the action of NaOH in dioxane at 80 °C in the presence of tetrabutyl-ammonium bromide [514,515], or by metathetical exchange of trifluoroethoxy moieties with variable types of alkoxides groups [482,483,515] (vide supra). [Pg.219]

These implications types correspond closely to the definitions of state variable types we gave in Section II, E. Those variables that appear in the... [Pg.305]

In addition to being able to identify the types of constraints, we must also be able to identify the types of variables. We introduce two predicates, Intersituational and Intrasituational to identify the variable types. [Pg.310]

We then use a predicate for each variable type to be able to pattern match from the variable to its value ... [Pg.312]

Both fixed and variable wavelength uv/visible detectors are available. The variable types use a deuterium and/or a tungsten filament lamp as the radiation source and can operate between about 190-700 nm. They will have a number of absorbance ranges (ranges are given... [Pg.53]

In order to optimize the formulation, a different experimental design was used. Based on the results of the first design, the particular molecular weight of SiUMA was chosen which seemed to have the best chance of giving the desired balance of properties. Further, it had been established that Variable II (and not Variable III) was preferable for further work. With these variable types (i.e., not involving a component amount) eliminated, the problem was reduced to a "constrained mixture deslgn"(12,13) involving three components SiUMA-18, Variable I, and Variable II. [Pg.50]

Fig. 11. Using the generic web services interface of Pipeline Pilot it is possible to generate complex input forms. In this case we use different variable types to provide a Vendor Filter protocol for selecting reactants. Fig. 11. Using the generic web services interface of Pipeline Pilot it is possible to generate complex input forms. In this case we use different variable types to provide a Vendor Filter protocol for selecting reactants.
Input variable Type of variable Distribution andparameters... [Pg.129]

Secondary sweep variable type has been changed to a Current source. [Pg.245]

Subduction-related processes, which generate differing styles of mantle contamination of sub-arc mantle, back-arc opening of the Tyrrhenian Sea and generation of variable types of magmas. [Pg.307]

There are a number of basic factors to be considered in polymerization in addition to process variables, types of catalyst, and catalyst poisons. Possibly the most important is that essentially all polymerization... [Pg.221]

The silica surface allows variable types of interactions in which the large specific surface area as well as the surface site chemistry play an important role. Both topics will be discussed in detail below. Concerning the applications, three types of interactions may be discerned ... [Pg.27]

High conversion with an optimal reaction rate [7, 11, 75, 95], increase of the turnover numbers, i.e., the moles of substrate converted per mole of enzyme deactivated [3, 75, 95], and high stereospecificity of the compound of interest are targets of particular interest in the operation of these batch reactors [10,11,48, 77]. The achievement of these goals requires the study of different variables type and concentration of peroxide, substrates and cofactors, enzyme activity and purity, composition of the reaction medium, pH, temperature, or agitation. Such optimization requires a deep knowledge of the system and a mathematical model that represents it satisfactorily. The kinetic model obtained in batch experiments is the... [Pg.254]

Name of Ensemble Independent Variables Types of Contact with Next System Partition Function Fundamental Thermodynamic Equation... [Pg.294]

Table 10. Breakdown of Copper(II) Stereochemistries into their temperature variable (A) and nontemperature variable types (B)... Table 10. Breakdown of Copper(II) Stereochemistries into their temperature variable (A) and nontemperature variable types (B)...
The term brittle asthma was first used in 1977 to describe patients who maintained a wide variation in PEER despite high-dose inhaled steroids. This has been reviewed and described by Ayres et al. (1998) based on the magnitude of diurnal PEFR variability, rather than the pattern of variability. They also describe two subclasses maintained wide PEF variability (type 1, >40% diurnal variation for >50% of the time over at least 150 days) or sudden onset of acute airway obstruction (type 2, occurring in less than 3 hours without obvious trigger). [Pg.78]

All common variable types are supported. It is best to declare variables, using either the Dim or Redim statement, which can occur anywhere in a procedure. Arrays must be declared. There are some leftovers from older versions of the language whereby a variable that ends in % is automatically an integer, for example i%, and a variable ending in a character, for example n. However, it is not necessary for these variable types to end in these characters providing they are specifically declared, e.g. [Pg.445]

Conventional humidity sensors of the electric resistance variable type use hydrocarbon polyelectrolyte as a moisture sensing material. Therefore, the sensors usually have insufficient heat resistance, and cannot be used at temperatures of 60°C or more. Another problem is that they deteriorate when in contact with cigarette smoke and oil contained in the air [64,65]. When the fluorinated pitch-deposited coating was breathed upon, the electrical resistance quickly decreased, but electrical resistance quickly recovered when this action was stopped. Then, how to develop a humidity sensor excelling in humidity response sensitivity, heat resistance and durability was attempted [66]. Two kinds of comb-like electrodes with different electrode gaps were made, and a thin film was formed on the surfaces by vacuum deposition of fluorinated pitch. The obtained fluorinated pitch sensors were left at rest in a thermostatic chamber, and electrical resistance was determined under the following conditions. [Pg.616]

We learned in Chapter 5 that some metals always form monatomic ions having one given charge in all their compounds. In this book, we will call this type of ion the constant type. Other metals form monatomic ions with different charges (see Figure 5.11). We will call this type the variable type. There are also some polyatomic cations, but only three of these are important for this course. Thus, the first step in naming a cation is to decide which of these three types it is polyatomic, constant type, or variable type. We name them in different ways. [Pg.175]

Naming ions of metals that form ions of more than one charge requires distinguishing between the possibilities. For example, iron forms Fe and Fe ions. We cannot call both of these iron ion because no one would know which of the two we meant. For monatomic cations of variable type, the charge in the form of a Roman numeral is attached to the element s name to indicate which ion we are talking about. For example, Fe is called iron(II) ion and Fe is called iron(lll) ion. This system of nomenclature is called the Stock system. [Pg.175]

Classify the metal in each of the following compounds as constant type or variable type, and then name each compound ... [Pg.190]

IV for Ionic compounds containing metal ion of Variable type... [Pg.193]


See other pages where Variables, types is mentioned: [Pg.422]    [Pg.1810]    [Pg.852]    [Pg.168]    [Pg.173]    [Pg.314]    [Pg.71]    [Pg.266]    [Pg.267]    [Pg.40]    [Pg.57]    [Pg.354]    [Pg.219]    [Pg.700]    [Pg.63]    [Pg.167]    [Pg.219]    [Pg.15]    [Pg.200]    [Pg.62]    [Pg.696]    [Pg.175]    [Pg.178]   
See also in sourсe #XX -- [ Pg.5 , Pg.13 ]




SEARCH



Free-Wilson-type indicator variable

Indicator-type variables

Precaution—Use a Roots-Type Blower with Variable Frequency-Driven Motor

Sample types variability

Soils spatial variability types

Spatial variability types

Types of Preanalytical Variables

Variability major types

Variable type cations

Variables, Types and Operators

© 2024 chempedia.info