Pursuing the green manufacturing (GM) of products i s very beneficial in the alleviation of environment burdens. In order to reap such benefits, green manufacturing is involved in every aspect of manufacturing proc es...Pursuing the green manufacturing (GM) of products i s very beneficial in the alleviation of environment burdens. In order to reap such benefits, green manufacturing is involved in every aspect of manufacturing proc esses. During the machining process, cutting fluid is one of the main roots of e nvironmental pollution. And how to make an optimal selection for cutting fluid f or GM is an important path to reduce the environmental pollution. The objective factors of decision-making problems in the traditional selection of cutting flu id are usually two: quality and cost. But from the viewpoint of GM, environmenta l impact (E) should be considered together. In this paper, a multi-object d ecision-making model of cutting fluid selection for GM is put forward, in which the objects of Quality (Q), Cost(C) and Environmental impact (E) are considered together. In this model, E means to minimize the environmental impact, Q means to maximize the quality and C means to minimize the cost. Each objective is anal yzed in detail too. A case study on a decision-making problem of cutting fluid selection in a gear hobbing process is analyzed, and the result shows the model is practical.展开更多
The action of total flavones of Gynostemma pentaphyllum (Thunb) Mak (TFG) 60 mg/kg i.v. could prevent arrhythmias induced by drugs and myocardial ischemia were investigated. In anesthetized rats and guinea pigs. The r...The action of total flavones of Gynostemma pentaphyllum (Thunb) Mak (TFG) 60 mg/kg i.v. could prevent arrhythmias induced by drugs and myocardial ischemia were investigated. In anesthetized rats and guinea pigs. The results showed that in TFG group the duration of ventricular tachycardia (VT) induced by aconitine in rats was shortened (P<0 01) and the incidence of ventricular fibrillation (VF) and the mortality were decreased (P<0 01) respectively. The arrhythmias induced by i.v. BaCl 2 4 mg/kg in rats were immediately recovered to a normal sinus rhythm and VT induced by i.v. CaCl 2 130 mg/kg in rats was decreased by TFG i.v. TFG i.v. elevated the doses of i.v. strophanthin G to induce ectopic beats (EB), VT, VF and cardiac arrest (CA) in guinea pigs by 89%, 58%, 27%, and 28% (P<0 01) respectively. The incidence of VF induced by coronary artery ligation in rats was decreased (P<0 01), duration of EB, duraton of VT and VF decreased to 45%, 42% and 0% of the NS group respectively. The results suggest that TFG in dosage of 60 mg/kg might be useful for the prevention of VT and VF.展开更多
Dioscorea nippnica Mak is an important traditional Chinese medicinal material with significant economic value. Seeds of Dioscorea nippnica Mak were collected from three forest areas. Germination experiment was carried...Dioscorea nippnica Mak is an important traditional Chinese medicinal material with significant economic value. Seeds of Dioscorea nippnica Mak were collected from three forest areas. Germination experiment was carried out with three mediums. Experimental results showed that the species had lower percentage of germination on all mediums. The limiting factors for germination were analyzed.展开更多
文摘Pursuing the green manufacturing (GM) of products i s very beneficial in the alleviation of environment burdens. In order to reap such benefits, green manufacturing is involved in every aspect of manufacturing proc esses. During the machining process, cutting fluid is one of the main roots of e nvironmental pollution. And how to make an optimal selection for cutting fluid f or GM is an important path to reduce the environmental pollution. The objective factors of decision-making problems in the traditional selection of cutting flu id are usually two: quality and cost. But from the viewpoint of GM, environmenta l impact (E) should be considered together. In this paper, a multi-object d ecision-making model of cutting fluid selection for GM is put forward, in which the objects of Quality (Q), Cost(C) and Environmental impact (E) are considered together. In this model, E means to minimize the environmental impact, Q means to maximize the quality and C means to minimize the cost. Each objective is anal yzed in detail too. A case study on a decision-making problem of cutting fluid selection in a gear hobbing process is analyzed, and the result shows the model is practical.
文摘The action of total flavones of Gynostemma pentaphyllum (Thunb) Mak (TFG) 60 mg/kg i.v. could prevent arrhythmias induced by drugs and myocardial ischemia were investigated. In anesthetized rats and guinea pigs. The results showed that in TFG group the duration of ventricular tachycardia (VT) induced by aconitine in rats was shortened (P<0 01) and the incidence of ventricular fibrillation (VF) and the mortality were decreased (P<0 01) respectively. The arrhythmias induced by i.v. BaCl 2 4 mg/kg in rats were immediately recovered to a normal sinus rhythm and VT induced by i.v. CaCl 2 130 mg/kg in rats was decreased by TFG i.v. TFG i.v. elevated the doses of i.v. strophanthin G to induce ectopic beats (EB), VT, VF and cardiac arrest (CA) in guinea pigs by 89%, 58%, 27%, and 28% (P<0 01) respectively. The incidence of VF induced by coronary artery ligation in rats was decreased (P<0 01), duration of EB, duraton of VT and VF decreased to 45%, 42% and 0% of the NS group respectively. The results suggest that TFG in dosage of 60 mg/kg might be useful for the prevention of VT and VF.
文摘Dioscorea nippnica Mak is an important traditional Chinese medicinal material with significant economic value. Seeds of Dioscorea nippnica Mak were collected from three forest areas. Germination experiment was carried out with three mediums. Experimental results showed that the species had lower percentage of germination on all mediums. The limiting factors for germination were analyzed.
