Most warranty cost models based on preventive maintenance operations are assumed that products improve at each preventive maintenance （PM） operation and the failure rate is reduced to the failure rate of new product...Most warranty cost models based on preventive maintenance operations are assumed that products improve at each preventive maintenance （PM） operation and the failure rate is reduced to the failure rate of new products or to some specified level. To make warranty cost models more suitable to real operations, a modeling method of the PM warranty cost was proposed with the situation where each PM operation slowed the rate of product degradation. A warranty cost model was built on PM operations. On the basis of the cost model, both without and with reliability limit PM warranty policy, algorithms were presented to derive the optimal PM number and the optimal PM interval with an objective of minimizing expected total warranty cost over a t＇mite warranty period. Finally, to demonstrate the feasibility of the presented modeling method, Weibuil distribution cases were tested by numerical simulations. The simulation results indicate that the proposed modeling method is feasible and valid for resolving the optimal solution of the product warranty cost.展开更多
Fruit processing is the appropriative way to augment fruit intake. The present paper shows production technology, which is based on the characteristics of selected raw materials and does not use sugar （saccharose）. ...Fruit processing is the appropriative way to augment fruit intake. The present paper shows production technology, which is based on the characteristics of selected raw materials and does not use sugar （saccharose）. The objective of the present paper is to produce healthful and disease preventive beverages based on ＂Saperavi＂ red wine and bilberries, using grape juice concentrate and stevioside, a natural sweetener, instead of saccharose. The technology is based on the removal of alcohol at a low temperature and low pressure. In these conditions about 50% of moisture is evaporated. The extract is then diluted with 0.25% of stevioside liquid and the ratio is 1：1. The working name is ＂Saperavi-S＂. Bilberry juice is added to this beverage at the ratio of 1： l in order to enrich it with biologically active substances. The working name of this beverage is ＂Marnidan＂. The products have high contents of phenolic compounds, mainly-anthocyanins. The main idea of technology uses bilberry juice with grape juice concentrate. Bilberries have quite high antioxidant activity, amounting to 55% against l,l-Diphenyl-2-picrylhydrazyl. It is the first time we have produced a beverage based on dealcoholized red wine, stevioside and bilberry juice. This beverage is of special importance in terms of its disease-preventive qualities, including prevention of diabetes, one of the most widespread chronic diseases.展开更多
基金National Natural Science Foundation of China(No.60574054No.70771065No.70671065)
文摘Most warranty cost models based on preventive maintenance operations are assumed that products improve at each preventive maintenance （PM） operation and the failure rate is reduced to the failure rate of new products or to some specified level. To make warranty cost models more suitable to real operations, a modeling method of the PM warranty cost was proposed with the situation where each PM operation slowed the rate of product degradation. A warranty cost model was built on PM operations. On the basis of the cost model, both without and with reliability limit PM warranty policy, algorithms were presented to derive the optimal PM number and the optimal PM interval with an objective of minimizing expected total warranty cost over a t＇mite warranty period. Finally, to demonstrate the feasibility of the presented modeling method, Weibuil distribution cases were tested by numerical simulations. The simulation results indicate that the proposed modeling method is feasible and valid for resolving the optimal solution of the product warranty cost.
文摘Fruit processing is the appropriative way to augment fruit intake. The present paper shows production technology, which is based on the characteristics of selected raw materials and does not use sugar （saccharose）. The objective of the present paper is to produce healthful and disease preventive beverages based on ＂Saperavi＂ red wine and bilberries, using grape juice concentrate and stevioside, a natural sweetener, instead of saccharose. The technology is based on the removal of alcohol at a low temperature and low pressure. In these conditions about 50% of moisture is evaporated. The extract is then diluted with 0.25% of stevioside liquid and the ratio is 1：1. The working name is ＂Saperavi-S＂. Bilberry juice is added to this beverage at the ratio of 1： l in order to enrich it with biologically active substances. The working name of this beverage is ＂Marnidan＂. The products have high contents of phenolic compounds, mainly-anthocyanins. The main idea of technology uses bilberry juice with grape juice concentrate. Bilberries have quite high antioxidant activity, amounting to 55% against l,l-Diphenyl-2-picrylhydrazyl. It is the first time we have produced a beverage based on dealcoholized red wine, stevioside and bilberry juice. This beverage is of special importance in terms of its disease-preventive qualities, including prevention of diabetes, one of the most widespread chronic diseases.
