Guarding principles

British Standards Institution, BS EN 1088 (ISO 14119), Safety of machinery - Interlocking devices associated with guards - Principles for design and selection, BSI, London (1995)... 

Incidentally, there are customers who come and ask, I know you have stated in your Abs Max table that I shouldn t apply more than 24V to the device. But what if I apply 28V for just lms The principled answer to that is, you can t apply even 24.01V, for even 10-12 seconds The company officially doesn t stand by it. Yes, internally they do test at higher stress levels than published, and have also got various guard-bands present (for their protection and reputation). But remember you don t know what these are. Also, keep in mind that voltage overstress leads to almost instantaneous death, whereas current ratings are related more to internal heat buildup, so you can always exceed them somewhat for a short time. 

The methods used to convert these vat dyes into a suitable physical form (and in some cases, crystal structure) for use as pigments have been carefully guarded industrial secrets, revealed only in patents. The general principles are clear, however. One method is to reduce the vat dye in the usual manner to bring it into solution and then to re-precipitate it under very carefully controlled conditions. The other is to subject the dye to a fine grinding operation. Whichever approach is used, the aim is to reduce the mean particle size to below 1 J,m (1000 nm). 

The principle of justice states that individuals should be given what they deserve, be that benefit or burden. Cases that are alike should be treated similarly, and relevant distinctions should be drawn consistently. The principle of justice does not specifically state what distinctions are fair or which criteria are reasonable it simply requires that, once criteria are determined, they be applied fairly. Justice is important in many areas, such as recruitment of research subjects for pharmaceutical studies. For example, researchers must guard against distributing the burdens of participation disproportionately among populations that are poorly equipped to give informed consent, such as children or the mentally incompetent. 

Berget applied the so-called guard-ring principle. 

We will now look at some other important industrial applications of the chemical principles studied so far. Each of these processes involves at least one step that reaches equilibrium, and so the position of the equilibrium has to be altered in order to make the process economically viable. Although both raising the temperature and increasing the concentration of reactants can speed up reactions, the latter method is costly and the former may destroy some substances in the process. The use of a suitable catalyst is generally more efficient and economical in the long run. A considerable amount of time and money is invested in the development of catalysts. The detailed composition of an industrial catalyst is often a well-guarded secret. 

When using multireaction rate functions to describe kinetic data, the simplest model with the best overall fit to the data and with the lowest parameter standard errors is the most desirable. One must guard against overfitting the data, which occurs by using a model with too many parameters for too few data points. The extra sum of squares principle (Kinniburgh,... 

The difficulties were overcome. Swedish radio broadcast the Swedish protest that evening, October 2, and reported the country ready to offer asylum. The broadcast signaled a route of escape in the next two months 7,220 Jews crossed to safety in Sweden with the active help of the Swedish coast guard. One refugee s report of what first alerted him in hiding to the idea of escape is typical At the pastor s house I heard on the Swedish radio that the Bohr brothers had fled to Sweden by boat and that the Danish Jews were being cordially received. With personal intervention on behalf of the principle of openness, which exposes crime as well as error to public view, Niels Bohr played a decisive part in the rescue of the Danish Jews. 

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