疲劳

The results show that the life of low cycle large strain fatigue N of nitinol is between 102 -104 cycles; The less the cycle strain, sheet thickness, wire diameter and range of strain angle are, the more the life of fatigue is. Heat treatment of nitinol pl...

结果表明：TiNi合金低周大变形疲劳寿命在102-104之间；板厚、丝径、形变角幅度愈小，寿命愈长；热处理制度对疲劳寿命有重大影响，采用热拉伸工艺和400-500℃回火，合金有较好综合性能；合金中杂质含量和成分组织均匀性对合金性能有着重要作用。

The fastening bolts of steam turbine cylinder case were in fatigue-creep interaction.

调峰机组频繁调整负荷，汽轮机汽缸紧固螺栓处于疲劳-蠕变交互作用，对紧固螺栓多轴应力下疲劳-蠕变损伤的研究对调峰机组安全运行和维修具有重要意义。

Loading of peak generator units were changed frequently. The fastening bolts of steam turbine cylinder case were in fatigue-creep interaction. It was important to study fatigue-creep interaction damage of fastening bolts under multiaxial stress.

调峰机组频繁调整负荷，汽轮机汽缸紧固螺栓处于疲劳-蠕变交互作用，对紧固螺栓多轴应力下疲劳-蠕变损伤的研究对调峰机组安全运行和维修具有重要意义。

Spring fatigue strength is a key performance index. Fatigue strength is less than static stress strength such as elasticity limit,yield strength.

弹簧由于承受交变应力的作用，在运行过程中发生的弹簧断裂主要是疲劳断裂，所以，弹簧的疲劳强度是关键的性能指标。

Longer fatigue life is the key point for spring steel with ultimate tensile strength of 2 000 N/mm2 grade.

提高齿轮钢的强度需要改善其抗疲劳性能；1200N/mm2螺栓钢和2000N/mm2弹簧钢的强度需要改善抗延迟断裂性能和抗疲劳性能；提高微合金非调质钢的强度需要改善其韧性。

The thermal shock fatigue mechanism s of the ceram were discussed.

研究了Al2O3-TiC复合陶瓷的热震疲劳机制和TiC的添加量对其热震疲劳抗力的影响。

Anti-stress and anti-fatigue were the key mechanisms of AKM in treatment of Chronic Fatigue Syndrome.

抗应激和抗疲劳是AKM治疗慢性疲劳综合征的重要机理所在。

The extent of subjective fatigue in highway maintainers is higher, and it is a risk factor of electrocardiogram abnormality.

结论］养路工的主观疲劳状况比普通人群严重，主观疲劳可能是心电图异常的危险因素。

To do full-body massage and foot massage to be effective in lifting the body and spirit The two aspects of fatigue, therefore, to do escort in haerbin are more applicable to chronic fatigue syndrome.

做全身保健按摩和足底保健按摩可有效地解除躯体的和精神的两方面疲劳，因此，做保健按摩较适用于慢性疲劳综合症。

Methods rats were forced to swim in cold water daily for 9 days,behaviors in the open-field test,serum noradrenalin,dopamine and 5-hydroxytryptamice,and ascorbic acid in adreanal gland were determined.

采用强制冷水游泳模拟慢性疲劳发病过程的动物模型，从应激角度观察应激导致动物疲劳时，其大体行为及神经内分泌系统的变化和二十八烷醇对该变化的影响。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。