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First three parametres matter at the decision of a question of placing of the new
Technicians on floor spaces available for the consumer. Such
Parametres as capacity and productivity, allow to define degree
Progressiveness of new technics. The service zone allows to define more
Precisely necessary number of workers for service of new technics.
Let's designate through
? 1 - perfection degree on dimensions;
? 2 - perfection degree on capacity and on productivity;
? 3 - perfection degree on labour input of service;
? - The general estimation of degree of perfection.
? = |? 1 | + |? 2 | +... + |? n |
The further calculations are carried out as follows:
At the heart of an estimation of degree of perfection can be and others
Technical and economic characteristics. Number of compared parametres
Depends on features of technics. However, an essence - in search
Positive and negative deviations of new technics from the replaced.
Example 6.2. The sum of negative deviations (taken on absolute size
On dimensions? 1 = 1,1; the sum of positive deviations on capacity and
Productivity? 2 =2,4; the sum of positive deviations on a zone
Service? 3 = 3,4.
Hence, the new technics is more perfect |1,1 + 2,4 + 3,4 | in 6,9
Let's notice that conducting tests of new technics, it is necessary to consider that
Results of individual tests of parametres of new technics can appear
If |xit - it3 |> t?, effect of improvement consider significant. In
Opposite case, the changes brought in a design or technology, not
Will lead to desirable result.
Technics tests is the process connected with consecutive change
Statuses in time. For example, the computer is serviceable now, and
Through any time has ceased to work. There was an event named
Refusal. Refusals are reliability characteristics.
Reliability characteristic is based on a binary estimation of a status of elements
And products: efficient, disabled. Refusal is an event, in
Which result the separate element or all device does not work. Refusal
It is considered as casual event. All characteristics of reliability carry
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