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半干鸡肉生产及降低制品水分活度的研究 总被引:2,自引:1,他引:2
研究了半干鸡肉的生产方法。重点试验了用不同浓度的磷酸盐、丙三醇、丙二醇对鸡肉进行腌制处理 ,生产半干鸡肉 (含水量为 2 5 %~ 3 0 % )对制品水分活度的影响。结果表明 ,m [焦磷酸钠 (Na4P2 O7) ]∶m [三聚磷酸钠 (Na5P3 O10 ) ]∶m [六偏磷酸钠 ((NaPO3 ) 6) ]为5∶5∶4时 ,产品水分活度最低为 0 .5 7;丙三醇比丙二醇降低半干鸡肉水分活度的能力强 ,二者共同添加有协同作用 ,最佳添加量为丙三醇 3 % ,丙二醇 2 %。 相似文献
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本文首先阐述了宽带城域网的层次结构,然后详细介绍了接入层的各种技术方案和应用情况,最后对各种接入技术进行了比较和分析,提出采用综合接入手段作为系统解决方案的观点. 相似文献
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组合型复合地基的理论分析与试验研究 总被引:1,自引:1,他引:0
通过三维有限元和现场静载试验对组合型复合地基的受力和位移特性进行了研究,并把理论计算结果与实测结果进行了对比分析,理论分析和试验结果表明:在组合型复合地基中,由于各桩之间相互影响,桩长较短、刚度较小的RSC桩的单桩承载力同单桩相比差别不大;而桩长较长、刚度较大的水泥粉煤灰碎石桩(简称CFG桩)的单桩承载力比单桩减小较多.在湿陷性黄土地区,采用具有挤密作用的RSC桩可以消除地基土的湿陷性,采用刚度大的CFG桩可以大幅度提高复合地基的承载力. 相似文献
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In order to study the engineering behaviors of reinforced gabion retaining wall, laboratory model test was carried out. Cyclic
load and unload of five levels (0–50, 0–100, 0–50, 0–200 and 0–250 kPa) were imposed. Vertical earth pressure, lateral earth
pressure, deformation behaviors of reinforcements, potential failure surface and deformation behaviors of wall face were studied.
Results show that vertical earth pressure is less than theoretical value, the ratio of vertical earth pressure to theoretical
value increases nearly linearly with increasing load, and the correlation coefficient of regression equation is 0.92 for the
second layer and 0.79 for the fifth layer. The distribution of lateral earth pressure along the wall back is nonlinear and
it is less than theoretical value especially when the load imposed at the top of retaining wall is large. Therefore, reinforced
gabion retaining wall will be in great safety when current method is adopted. The deformation behaviors of reinforcements
both in the third layer and the fifth layer are single-peak distributions, and the position of the maximum strain is behind
that determined by 0.3H (Here H refers to the height of retaining wall) method or Rankine theory. Lateral deformation of wall face increases with increasing
load, and the largest lateral deformation occurs in the fourth layer, which lead to a bulging in the middle of wall face. 相似文献