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c-simple
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  相似匹配句对
     (c) it is simple.
     (c)简单 ;
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     The method is simple.
     该方法简单且适用面广 ,程序实现容易 .
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     It is simple to realize.
     新算法有效降低了路由开销,而且实现简单。
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     It is simple and practical.
     用它定阶简便实用。
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     On Simple P-Function
     关于素p-函数
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  c-simple
We prove the existence of a c-simple theory (of an infinite signature) every uncountable model of which is not Σ-definable in superstructures over dense linear orders.
      
A criterion is stated for the uncountable model of a c-simple theory to be Σ-definable in superstructures over dense linear orders, and over infinite models of the empty signature.
      
We consider the problem of being Σ-definable for an uncountable model of a c-simple theory in hereditarily finite superstructures over models of another c-simple theory.
      


In this paper, the biaxial stress-strain relations for concrete in R.C beams arc modified to secure the stability and high precision of the calculating program. Consequently, a 2 -D nonlinear finite clement program RCNFEA for R.C beams is developed. The program is applied to the full -range nonlinear analysis of R.C simple supported beams and two-span continuous beams. The regularity of redistribution of internal forces of continuous beams with moment modulation is studied, and the moment modulation influence...

In this paper, the biaxial stress-strain relations for concrete in R.C beams arc modified to secure the stability and high precision of the calculating program. Consequently, a 2 -D nonlinear finite clement program RCNFEA for R.C beams is developed. The program is applied to the full -range nonlinear analysis of R.C simple supported beams and two-span continuous beams. The regularity of redistribution of internal forces of continuous beams with moment modulation is studied, and the moment modulation influence on the crack width and the deflection of continuous reinforced concrete beams with a relatively small steel ratio under service loads is analyzed in detail. The conclusions obtained show no difference, on the whole, with the experimental ones.

为了确保计算稳定性和提高计算精度,本文改进了砼梁单元在双向应力作用下的本构关系,自编了钢筋砼梁非线性平面有限元计算程序RCNFEA,对简支梁和两跨连续梁进行了非线性全过程分析,着重研究了连续梁的内力重分布规律,并详细分析了弯矩调幅对低配筋连续梁使用阶段裂缝宽度和挠度的影响,所得结果与试验分析结果基本一致。

Objectives:To explore the best method to preserve the large bone allograft. Method:The bone and joint allografts of fetus and adults were divided into three groups after being treated by cryoprotectant (group A: gradient cooling and liquid nitrogen preservation, group B: gradient cooling and -80 ℃ hypothermic freezer preservation, group C: simple liquid nitrogen preservation). Histological and histochemical changes, chondrocyte survival rates and ultrastructurse of the cartilage tissues were detected periodically....

Objectives:To explore the best method to preserve the large bone allograft. Method:The bone and joint allografts of fetus and adults were divided into three groups after being treated by cryoprotectant (group A: gradient cooling and liquid nitrogen preservation, group B: gradient cooling and -80 ℃ hypothermic freezer preservation, group C: simple liquid nitrogen preservation). Histological and histochemical changes, chondrocyte survival rates and ultrastructurse of the cartilage tissues were detected periodically. Results:Group A and B had normal shaped chondrocytes and ultrastructural appearance, high cell survival rates and much mucopolysaccharide after cryopreserved for 1,3,6,12 weeks; Cell membrane rupture and karyopydnosis could be seen in group C , in which there was little mucopolysaccharide, low cell survival rates and unclear ultrastructures. Much more normal shaped chondrocytes and mucopolysaccharide could be seen in fetus than that in adults. Conclusions:①Gradient cooling can help to maintain the chondrocyte activity of the osteoarticular allograft. ②The chondrocytes of the fetus are more resistant to cold injury than that of the adults. ③There is no relationship between the survival rates and the preservation time.④There is no difference between liquid nitrogen preservation and -80℃ hypothermic freezer preservation after gradient cooling.

目的 :探讨大块同种异体骨关节软骨冷冻保存的最佳方法。 方法 :将高月龄胎儿和成人肢体骨关节移植物用冷冻保护剂预处理后进行分组保存 (A组 :梯度降温加液氮保存 ;B组 :梯度降温加 - 80℃低温冰箱保存 ;C组 :单纯液氮保存 ) ,定期取部分关节软骨组织进行组织学、组织化学、细胞存活率以及超微结构。 结果 :A、B组经过冷冻保存 1、3、6、12周后关节软骨细胞形态基本正常 ,软骨基质粘多糖含量丰富 ,细胞超微结构大体正常 ,细胞存活率较高 ;C组经过冷冻后细胞大多出现胞膜破裂、胞核固缩等现象 ,基质中粘多糖含量降低 ,细胞器结构不清 ,细胞存活率低。在A、B组中 ,胎儿关节软骨中细胞成分较成人多 ,细胞较幼稚 ,粘多糖含量更丰富。 结论 :①梯度降温有利于保持冷冻骨关节移植物中软骨细胞的活性。②胎儿软骨细胞较成人具有更强的抗冻伤能力。③软骨细胞的活性与保存时间无关。④液氮和 - 80℃低温保存对维持软骨细胞活性无明显区别。

Objective To investigate the possible relation of atrial fibrillation (AF) with the total activity of protein kinase C (PKC) and the quantity of PKC (α,β) in the left auricle tissues of the patients with mitral disease. Methods Thirty five patients hospitalized for valve replacement surgery were divided into four groups: group A(simple mitral stenosis with AF), group B(simple mitral stenosis with sinus rhythm), group C(simple mitral regurgitation with AF), group D (simple mitral regurgitation with sinus rhythm),...

Objective To investigate the possible relation of atrial fibrillation (AF) with the total activity of protein kinase C (PKC) and the quantity of PKC (α,β) in the left auricle tissues of the patients with mitral disease. Methods Thirty five patients hospitalized for valve replacement surgery were divided into four groups: group A(simple mitral stenosis with AF), group B(simple mitral stenosis with sinus rhythm), group C(simple mitral regurgitation with AF), group D (simple mitral regurgitation with sinus rhythm), The total PKC, activity and the quantity of PKC α and PKC β were measured and compared in an attempt to find out whether significant difference exists between the groups. Results There was no significant difference in total PKC activity between the four groups ( P >0.05). The quantity of PKC α in patients with AF was lower than that in patients with sinus rhythm. the quantity of PKC β in patients with AF was higher than in patients with sinus rhythm. But these differences were not statistically significant ( P >0.05). Conclusion Under conditions of the same rhythm and the same herat disease, the total PKC activity and the quantity of PKC (α, β) of the four groups showed no significant difference. No obvious relation was seen between the total activity of PKC in left auricle tissue and the occurrence of AF in patients with mitral disease, but more research on the relation between AF and the quantity of PKC isoforms in left auricle tissues would be needed.

目的 探讨二尖瓣病变患者左房心肌总蛋白激酶 C(PKC)活性及 PKCα、β亚类含量与心房颤动(AF)之间可能存在的关系。方法  35例患者分为四组 ,A组 :二尖瓣狭窄 (MS)伴 AF;B组 :为窦性心率 (SR)的二尖瓣狭窄 ;C组 :二尖瓣关闭不全 (MR)伴 AF;D组 :为 SR的二尖瓣关闭不全。分别检测各组总 PKC活性及 PKCα、PKCβ亚类含量。结果 各组间总 PKC活性无明显差异 (P>0 .0 5 )。伴有 AF的二尖瓣病变患者 (MS或 MR)其左房心肌 PKCα含量低于 SR的二尖瓣病变患者 (MS或 MR) ;而 PKCβ含量却高于 SR的二尖瓣病变患者 ,但上述差异尚未达到统计处理的显著性水平 (P>0 .0 5 )。结论 左房心肌总 PKC活性与二尖瓣病变患者 AF发生的关系不明显 ,但左房心肌 PKC亚类含量水平的变化与 AF的关系值得进一步研究

 
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