排序方式: 共有37条查询结果,搜索用时 15 毫秒
1.
2.
3.
浓缩化——洗涤剂的“低碳经济” 总被引:1,自引:0,他引:1
综述了洗涤剂行业应对“低碳经济”的措施——浓缩化。追溯了浓缩粉的国际进展及国内现状,并分析了国内外浓缩粉市场差距比较大的原因,同时对国内浓缩粉的发展提出建设性意见。 相似文献
4.
对目前市售几种规格的脂肪酸甲酯磺酸钠(MES)产品进行了对比,提出了衣用液体洗涤剂配方和生产技术对MES产品的技术要求。研究了MES在衣用液体洗涤剂中与LAS、AES等其他类型表面活性剂复配对体系去污力、泡沫性能、稳定性以及储存过程中二钠盐含量变化的影响。结果表明,在衣用液体洗涤剂配方体系中,MES与LAS复配去污性能增效明显,与LAS+AES复配有一定的去污增效作用,而与AES复配没有增效作用。随复配体系中MES加量的增加,洗衣液泡沫下降,随储存时间的延长和储存温度的升高,产品中二钠盐含量增加。 相似文献
5.
针对发动机台架试验时因机油泵供油量不足引起的拉缸问题,通过Flowmaster仿真计算分析,实现机油泵性能的优化,进而改进原机油泵的设计尺寸,并进行耐久性试验验证。结果表明,当机油泵转子在原机油泵转子厚度基础上加大1.6mm时,连杆喷口处的机油流量达到原发动机的流量指标,发动机未出现拉缸现象。该优化方法实现了分析与试验结果一致,为发动机润滑系统性能优化和工程应用提供理论依据。 相似文献
6.
基于GT-Power的LPG燃气组分对发动机排放影响的研究 总被引:3,自引:1,他引:2
通过建立单缸点火式LPG发动机在GT-Power中仿真,来研究LPG组分及其比例对发动机排放的影响.仿真实验表明,LPG组分对污染物的排放有重要的影响.随着丁烷比例的增加,CO和HC的排放增加,而NO_x减少;其中,CO、HC排放最少的是Fuel 1#,NO_x的排放最低的是Fuel 3#;考虑到综合排放性能和动力性的同时,丙烷与丁烷比例为7:3时最佳. 相似文献
7.
8.
9.
Cold atmospheric-pressure plasma is a new technology,widely used in many fields of biomedicine,especially in cancer treatment.Cold plasma can selectively kill a variety of tumor cells,and its biological safety in clinical trials is also very important.In many cases,the patient's immune level is relatively low,so we first studied the safety assessment of plasma treatment in an immunocompromised animal model.In this study,we examined the safety of immuno-deficient nude mice by oral lavage treatment of plasma-activated water,and studied the growth status,main organs and blood biochemical indexes.Acute toxicity test results showed that the maximum dose of plasma treatment for 15 rain had no lethal effect and other acute toxicity.There were no significant changes in body weight and survival status of mice after 2 rain and 4 min of plasma-activated water (PAW) treatment for 2 weeks.After treatment,the major organs,including heart,liver,spleen,lung and kidney,were not significandy changed in organ coefficient and tissue structure.Blood biochemical markers showed that blood neutrophils and mononuclear cells were slightly increased,and the others remained unchanged.Liver function,renal function,electrolytes,glucose metabolism and lipid metabolism were not affected by different doses of PAW treatment.The above results indicate that PAW treatment can be used to treat immuno-deficient nude mice without significant safety problems. 相似文献
10.