Moderator requirements

Moderator required as a heat sink <0..5 h after reactor trip 7.4E-6... 

Moderator required as a heat sink >24 li after reactor trip 4.l)i. S... 

C—Indicates generally moderate requirements of commercial and general process applications. 

Because of their ease of application and moderate price, direct dyes still represent one of the largest groups of azo dyes, although their wetfastness, in particular, often only satisfies moderate requirements. 

Utility Hydrogenated styrene-diene and star-shaped diene VI improvers have found their widest utility in gasoline and diesel engine oils. They may also be used in other applications which have only moderate requirements for shear stability, such as tractor transmission fluids and aircraft piston engine oils. However, the shear stability demands of many of the specialty applications precludes the use of currently available products. 

The TEMA standards identify three classes of exchanger construction Class R covers exchangers for the generally severe requirements of the refinery and related processing industries. Class C meets the moderate requirements of commercial and general process applications. Class B meets the special requirements of chemical process service, mainly addressed to the use of special alloys for corrosion resistance. There is relatively little difference between the requirements, and most process-plant exchangers are built to Class R standards. 

BF.R Semirigid blanket, etc., Fair Moderate Requires careful vapor treat- -400 250 0.300 0.320 U... 

CHG Broad Moderate Requires data to demonstrate safety Low Good when formulated with surfactants Relatively long, in hours... 

The designation/classification process for ozone was described in the Federal Register (4). For areas classified marginal to extreme, virtually all requirements are additive (e.g., a moderate area has to meet all marginal and moderate requirements, unless otherwise specified). The requirements reduce emissions of VOC and NO, which are precursors to ozone. This paper focuses on the NO,i requirements for major stationary sources. 

In this technique one standard polarizer is replaced by a dichroic color sensitive polarizer. For the yellow mode this results in a compensation of the off state and only slight influence on the on state. This mode of operation is called the neutral STN-mode (NSTN). For the complementary blue mode a compensation of the on state is achieved. A disadvantage of this technique is the low polarization efficiency of only (50-75)%. This limits its use to low-multiplexed displays with moderate requirements of contrast and viewing angle. 

Kakimoto and Liu [10] developed a partly 3D global model that takes into account feasible 3D global modeling with moderate requirements of computer memory and computation time. AH convective and conductive heat transfers, radiative heat exchanges between diffuse surfaces and the Navier-Stokes equations for the melt are all coupled and solved simultaneously by a finite-volume method in a 3D configuration. 

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