残余

These factors have seriously influenced the security and economical operation of the unit. This paper firstly summarizes the research background and the general situation of resarch about the overheating problem of boiler's high-temperature surface ,introduces the aspects and research findings in this field such as flux deviation、thermal deviation、flue gas velocity deviation at the exit of furnace and tee bends,et al.Then analyses the reason why high-temperature surfaces are overheated from such aspects as design、manufacture、operation, et al and points out one of the main factors that cause the overheating of reheaters is the flue gas velocity deviation caused by the remaining turning at the exit of furnace.

本文首先综合论述了课题的研究背景和目前电站锅炉高温受热面超温问题的研究概况，介绍了国内外流量偏差、热偏差、炉膛出口残余旋转、&三通&等研究方向和研究成果，然后从锅炉的设计、制造、运行等方面分析了高温再热器超温的原因，指出水平烟道内气流的残余旋转是造成再热器超温的主要原因之一。

To improve the fatigue strength of TC4, Nd: Glass pulse laser was used to shock the surface of TC4. X-ray stress analyzer was used to test the residual stress of the shocked area, and calculation was done by finite element software ABAQUS.

为提高钛合金的疲劳强度，采用Nd： Glass强脉冲激光对TC4钛合金表面进行冲击强化处理，采用X射线应力仪对冲击区的残余应力场进行测试，并采用ABAQUS有限元仿真软件对其残余应力场进行分析计算。

Besides, the effect of strength matching of weld metal on J-integral values is different between the two situations, with and without residual stresses.

此外，有残余应力和无残余应力的情形下，接头的强度组配对J积分的影响是不同的。

It is shown that the ratio of relaxed value of residual stress to the original residual ...

研究表明，在高压聚乙烯反应管开停工的循环载荷和 34 0℃时的均匀温度场作用下，2 0年内管内壁自增强残余应力衰减量与初始残余应力值的比率在 5 3%以下。

Results: 2 cases were the typeⅡ residual kidney and 1 case was the typeⅠresidual kidney.

结果 ：其中 2例为Ⅱ型残余肾，1例为Ⅰ型残余肾。

The simulation results show that the distribution of longitudinal residual stress along the width of sheet is asymmetrical, and the residual distortion corresponds well with experimental results both in distortion pattern and deformation values on the whole sheet.

利用该模型可以得到不对称的纵向残余应力结果，残余变形的趋势在整块板上都与实验结果相同，而且变形量和实验测量值之间的误差在20%以内。

The shear stress component was separated from strain data of normal stress relieved by symmetric-combining strain detecting.

利用对称组合应变测量的方法实现剪应力与轧向残余应力的分离，分别计算出板带的轧向残余应力和剪应力分布，计算结果与板形检测结果取得一致。

In this paper,the surface roughness and residual stress of 1Cr11Ni2W2MoV stainless steel after laser shock peening and shot peening were tested and analyzed.The results show that laser shock peening samples have better surface quality and larger residual stress than shot peening samples.

对不锈钢材料1Cr11Ni2W2MoV进行了激光冲击强化和喷丸强化后表面粗糙度和残余应力测试分析，与喷丸相比，激光冲击强化对试件表面形貌和表面粗糙度的影响更小，产生的残余压应力更大。

After the coagulation and sedimentation in the jar test with ferric chloride, the residual COD in the supernatant was 9000 mg/L which was further oxidized by chloric acid or with Fenton method. The COD removal efficient increased with the increasing of the dosage of chloric acid from 0.5 ~ 100 g/L or the H2O2/Fe2+ from 5/2.5 ~ 50/25 g/L, and the economical dosage were suggested as chloric acid 50 g/L or the H2O2/Fe2+ 50/25 g/L which resulted in the residual COD of 400 and 3300 mg/L individually for 95 and 63 % COD removal percentages. Oxidation test showed that only 5 minutes was needed for 92 % COD removal in the case of chloric acid dosage 50 g/L.

废液A经氯化铁混凝沉淀后，COD浓度可降低至9，000mg/L，仍未符合符合工业区污水厂进厂限值(＜650mg/L)，进而使用氯酸钠直接氧化法及Fenton法以去除剩余之COD，其操作条件范围分别为氯酸钠加药量0.5g ~ 100g/L ，而最适加药量为50g/L，及Fenton法H2O2/Fe2+加药量范围为5/2.5g/L~50/25g/L，其最适H2O2/Fe2+加药量为50/25g/L，两种方法处理后残余COD浓度分别为400mg/L及3300mg/L，去除率约为95%及63%，而依此判断氯酸钠氧化处理残余COD有较好之效果，且利用氯酸钠氧化速率快，5分钟就能有92%去除率，所需水力停留时间较短，由此实验建议利用氯酸钠直接氧化处理，最适加药量为50g/L。

The results showed that the surface layer and the bottom layer of the road pavement experience the repeated horizontal tensile and compressive stresses under cyclic loading and small residual tensile and compressive stresses build up in the surface layer and bottom layer respectively. This is probably one of the factors causing top-down or bottom-up fatigue cracking in the asphalt pavement.

结果表明在循环荷载作用下，路表和沥青层底都经受水平压应力和拉应力的重复作用，且在路表和沥青层底分别产生少量的残余拉应力和残余压应力，这有可能是造成沥青路面从上到下或从下到上疲劳开裂的原因之一。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。