To this purpose, L 18 (2 1x3 7) orthogonal table and S/N ratio are used to find out the optimal parameters set in M3300. The results show that the parameters derived from this study do improve quality level from 667 PPM to 167 PPM, and the scrap rate from 8.10% to 5.74%.
This paper introduces the experience of maintenance and management of speed control system of boosters and retarders in the Nanjing-East marshalling station and puts forward the period of overhaul and scrap for booster and retarders,combinging maintenance practice for many years.
There are many methods to solve it, but all the solutions have the basic thought that is to precede the demand as a whole in the course of developing the information system, Product Life-cycle Management (PLM) is one of the solutions, it has considered the product’s each stage from market demand to finally discard.
Abrasion not only consumes the energy and materials and decreases the equipment efficiency, but also accelerates the equipments discard and causes the parts replacement frequently and big economy loss.
The author analyzes the issues related to dam construction and management in China in the 21st Century based on the local conditions, and made key introductions to the depreciation and abandonment system in dam safety management, risk alleviation and strengthen of ill or risky dams.
Based on the application of 8.8kW walking tractors in China, regulations for rejection or abandonment of walking tractors in this Power range have been put forward and detailed explaination has been made.
Therefore, vehicle and driver management should efficiently serve the mass and better serve public security work and economic construction by perfecting the eight basic management systems, that is, vehicle registration system, vehicle license system, driver's license system, cumulative marking system, safety test, the third party compulsory insurance system, driver's license examining system and forcible abandonment system.
Critical slope gradient for compulsory abandonment of farmland on the hilly Loess Plateau
Population dynamics of wireworms (Coleoptera, Elateridae) in arable land after abandonment
The fallow II was used as a meadow after abandonment and was regularly mown until 1985, when cultivation stopped.
obscurus larvae were found during cultivation, whereas larval size increased after abandonment.
In the event of an increasingly QALY-driven priority-setting environment, however, abandonment of QALYs runs the risk of inappropriately marginalising people with mental illnesses in the resource allocation process.