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Intermediate confinement

The thermomechanical behavior can also be understood in terms of 3-D stress-strain-temperature curves. During step 1, it can be visualized from Figure 3.30 that the specimen that was confined by the steel hner experienced the maximum stress, followed by the nylon liner and mbber hner. This is due to rigid confinement, intermediate confinement, and weak confinement provided by the steel liner, nylon hner, and rubber liner, respectively. Transverse confinement resists the lateral expansion of the foam specimen, leading to lateral compressive stress to the specimen. Of course, the stiffer the lateral confinement, the higher is the lateral compressive stress to the specimen, and thus the higher the axial stress needed to achieve the same axial strain. [Pg.74]

The ratio between lateral strain to axial strain Sj/e, increases firstly, then decreases and finally keeps constant as plastic strain increases under confining pressure 1 MPa and 30 MPa. There is no decreasing section in the curve of rock specimen under intermediate confining pressures 15 MPa ... [Pg.413]

The relation curve between ej/ej in the elastic loading stage of every cycle and the plastic axial strain p can be divided into 3 segments (Fig. 7b). First segment, Ej/Ej increases to a peak value as Ep increases into Ep. second section, after peak, Ej/Ej decreases as Ep increases and last section, Ej/Ej tends to be constant. Curve of rock specimen under intermediate confining pressure of 15 MPa do not have the second section due to its pure shear failure mechanism, not like other two specimens with more lateral extension. [Pg.416]

Intermediate Confinement Zone (Zone II) Encloses all portions of the Reactor Block not In Zone I...plus other areas which have hlc probability of contamination Confine contamination in areas where there is a potential for only a low pressure build-up Negative 0 1 pslg to a positive 0.5 pslg Negative 0 30 Inches of water, me All penetration fittei with seals Not normally sealed off Personnel entry possi ble during normal operations ... [Pg.184]

The ability to act as a lone pair acceptor is not confined to Group III, and can occur wherever a quantum level is incomplete. This ability to accept electrons explains why covalent chlorides, with the exception of carbon tetrachloride, are readily hydrolysed, the apparently anomalous behaviour of carbon tetrachloride being readily explained by the fact that the carbon has a completed quantum level and is unable to form an intermediate complex with water. [Pg.42]

Physically, this is a difficult procedure Co justify. On planes intermediate between ab and cd Che compositions at corresponding points of each of the three paths will not be the same, so there should be lateral fluxes introduced by these lateral composition gradients--it is not consistent to assume that Che directions of motion are confined to vertical paths, as implied by the diagram. [Pg.69]

So without direct amination we are confined to semi-direct ami-nation (Strike s terminology). In Strike s opinion, the direct addition of an azide (N3) counts. Once on the beta carbon, that azide is as good as an amine. But can we get an azide directly onto safrole without having to go thru the bromosafrole intermediate as was discussed earlier Maybe we can ... [Pg.184]

R = R = H) are intermediate, and gentamicin and tobramycin are most susceptible (66). Resistance to streptomycin is widespread, and its use is currently confined primarily to infections caused by Mycobacterium tuberculosis Yersiniapestis and Francisella tularensis. [Pg.481]

Polysulfide Melt. Cl Sulfur Black 1 [1326-82-5] (Cl 53185), derived from 2,4-dinitrophenol, is the most important dye in this group which also includes the indophenol-type intermediates. The latter are appHed in the stable leuco form. The derived dyes are usually confined to violet, blue, and green shades. Other members of this group are intermediates capable of forming quinoneimine (10) or phenazone stmctures (11) that produce red-brown or Bordeaux shades ... [Pg.164]

The stmcture of the sulfuri2ed vat dyes is uncertain but in the presence of amino or methyl groups, thia2o1e-ring formation is possible. Examples have been confined to the dyes whose intermediates have been subjected to the conventional sulfur or polysulfide bake (Tables 2—5). [Pg.166]

The results supported the proposal of Glu-165 as the general base and suggested the novel possibility of neutral histidine acting as an acid, contrary to the expectation that His-95 was protonated [26,58]. The conclusion that the catalytic His-95 is neutral has been confinned by NMR spectroscopy [60]. The selection of neutral imidazole as the general acid catalyst has been discussed in terms of achieving a pX, balance with the weakly acidic intermediate. This avoids the thermodynamic trap that would result from a too stable enediol intermediate, produced by reaction with the more acidic imidazolium [58]. [Pg.228]

More inclusive is Table 3.3.1 -3 which is appropriate at depth into the analysis. The major headings in this table address major hazardous subject areas,. iccideni mitigation, protection and repair. I or example, under the first major heading, "Storage of Raw Materials, Products, Intermediates," listed are confinement measures, release nicclumi.sms (valves), procedures for safe operation and limitations that must be observed for safety. [Pg.78]

The 1987 version of ISO 9001 required the quality policy and the quality system procedures and instructions to be documented, clearly identifying three levels of documents in practice, organizations produced an intermediate level between the quality policy statement and the procedures which addressed the requirements of the standard and cross-referenced the associated procedures. This intermediate level together with the quality policy statement was often referred to as the quality manual. However, some manuals merely paraphrased the requirements of the standard, some described the quality system, and others confined the manual to the organization s operational policies. The guidance given in clause 5.3.1 of ISO 9004-1 suggests that the quality system documentation consists of policies and procedures. Clearly these policies are of a somewhat lower level than the corporate quality policy addressed in Part 2 Chapter 1. [Pg.163]

Compound 6 is a pivotal intermediate in Schreiber s synthesis. It was hoped that the conspicuous and strained bridgehead cyclobutene substructure in 6 would undergo a conrotatory electrocyclic ring opening upon thermolysis to give an isomeric 1,3-diene (8, Scheme 1). In the event, when a solution of cyclobutene 6 in toluene is confined to a sealed tube and heated to 180°C for 12 h, a stereoisomeric mixture of 1,3-dienes 7 and 8 is produced in an excellent yield of 95% (7 8 ca. 5 1). Finally, irradiation of the 5 1 mixture of cis-7 and trans-8, or of each independently, establishes a photostationary state in which the desired trans isomer 8 predominates (8 7 ca. 10 1). [Pg.335]

It should be noted that we have confined ourselves to the simplest reaction intermediates, namely, complexes involving only one transition metal atom and two alkene molecules. If the possibility of two transition metal atoms is taken into account the following complexes seem most likely ... [Pg.151]

In this theorem, any proposition p can represent an operator (i.e., an operation step), whereas the situations t and s represent any intermediate state of the process. Although the validity of the theorem is general, its practical utility is confined to monotonic planning with STRIPS-like operators. For example, in nonmonotonic planning the plans are at any point when partially specified and a new mechanism is needed to guarantee that when the partial plan is completed, a given proposition (i.e., a given operation) is still true (i.e., consistent). [Pg.57]


See other pages where Intermediate confinement is mentioned: [Pg.83]    [Pg.69]    [Pg.471]    [Pg.415]    [Pg.110]    [Pg.110]    [Pg.111]    [Pg.542]    [Pg.83]    [Pg.69]    [Pg.471]    [Pg.415]    [Pg.110]    [Pg.110]    [Pg.111]    [Pg.542]    [Pg.110]    [Pg.373]    [Pg.129]    [Pg.322]    [Pg.258]    [Pg.300]    [Pg.119]    [Pg.134]    [Pg.30]    [Pg.582]    [Pg.252]    [Pg.87]    [Pg.160]    [Pg.70]    [Pg.65]    [Pg.82]    [Pg.37]    [Pg.212]    [Pg.46]    [Pg.601]    [Pg.505]    [Pg.13]    [Pg.33]    [Pg.643]    [Pg.654]   
See also in sourсe #XX -- [ Pg.110 ]




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