The adsorption time of coal sample has a positive correlation with gas content and fracture growth.
样品的吸附时间与煤层含气量及裂隙发育程度呈正相关关系。
The fracture growth level is strictly controlled by argilla content, structural stress action and fault.
裂缝发育程度严格受泥质含量、构造应力作用和断层的控制。
On structure it is a west leans' structural nose, the large-scale shear fracture growth and complicate the structure;
③构造上为一西倾鼻状构造,大型剪切断裂发育且将构造复杂化;
Anpeng deep layer series is a clastic reservoir with low porosity, low permeability and fracture growth, where fractures are the main hydrocarbon migration channel and storage space.
安棚地区深层系为低孔、低渗、裂缝发育性碎屑岩储层,裂缝是主要的油气运移通道和储集空间。
These reservoirs are mainly contained mudstone, with salts and dolomite, fracture growth, and variational reservoir lithology, which determine reservoir sensitivities are very complicated.
这种储层主要是泥岩,含盐和白云石,裂缝发育,并且岩性变化大。决定盐间非砂岩储层敏感性相当复杂。
Observations were made in three groups on the effect of detumescence, pain-relief, callus growth and clinical duration for fracture union.
观察各组在消肿、止痛、骨痂生长、骨折临床愈合时间等方面的情况。
Objective: to investigate the expression of basic fibroblast growth factor in the process of human facial bone fracture healing.
目的:观察碱性成纤维细胞生长因子在人颌面部骨折愈合过程中的表达及量的变化。
This article reviews the appearance and expression of the main six kinds of endogenous growth factors up to now during fracture healing, and expects provide clues for future research.
本文综述了目前六种主要内源性生长因子在骨折修复过程中产生与表达的研究进展,以期对进一步的研究提供参考依据。
If the failure is defined as the final fracture of a component, then both S-N curves and crack growth rate curves reflect the fundamental material behavior under fatigue loading.
如果都把一个构件的最终断裂作为疲劳破坏的定义,则S - N曲线和裂纹扩展率曲线均是反映金属在疲劳载荷作用下的基本材料特性。
Objective: To establish a method for culturing the fracture hematoma cells in vitro and investigate the growth and osteogenesis characteristics of the fracture hematoma cells.
目的:建立一种体外培养骨折血肿细胞的方法,并研究骨折血肿细胞的生长情况和成骨特性。
Fracture mechanics is adopted to estimate the fatigue life of structural members, and among the rest, crack growth rate formula is studied.
本文采用断裂力学方法来估算结构构件的疲劳寿命,这其中主要围绕裂纹扩展速率表达式展开研究。
The method has been widely applied in the concrescence of fracture , growth of nerve fiber , cure of infected wound , speeding growth of vegetables.
直流电刺激的方法在促进骨折愈合,神经纤维生长,感染性创伤治疗,促进植物生长等方面,已得到了广泛的应用。
Fracture analysis by the scanning electron microscope shows that grain growth can be effectively inhibited and product properties highly improved by adding appropriate amount of foreign elements.
扫描电镜断口分析表明:掺杂可以控制晶粒生长,提高材料的性能。
Fatigue damage estimation of the tendons was made using fracture mechanics approach, establishing the fracture crack growth rate model and limit state equations for failure modes.
疲劳寿命的计算采用断裂力学方法,建立疲劳裂纹扩展模型和失效模式的极限状态方程。
Objective:To observe the effects of lower limb growth on children's femoral fracture treated with intramedullary nailing.
目的:观察儿童股骨骨折髓内针固定后对下肢生长发育的影响。
We also make tentative researches for fatigue fracture and for the effect of secondary crack on fatigue crack growth.
本文还在疲劳断口的研究方面进行了新的尝试,探讨了二次裂纹对疲劳裂纹扩展的影响。
Based on establishing fracture model, the authors analyze the factors influencing the growth of fractures and their openness, and then propose the method and technology for exploring fracture traps.
在建立裂缝模型的基础上,分析了影响裂缝发育和开启程度的因素,进而提出了勘探裂缝圈闭的方法与技术。
The craze growth and fracture laws concerning with the craze microstructure are the core of craze toughening mechanism.
考虑银纹细观结构特征的银纹生长和断裂规律是研究银纹增韧机制的核心内容。
It was found that the fracture of TWIP steel was typical ductile fracture pattern and its deformation and fracture processes were the formation, growth and coalescence of microvoids.
结果发现,TWIP钢具有典型的延性断裂断口特征,其变形和断裂过程为微孔洞的形核、长大和聚合。
In this paper, through analyzing the subcritical crack growth, a new formula is presented which can be used to calculate the crack fracture initiation stress at low and middle stress rates.
本文通过裂隙亚临界扩展的分析,提出一个计算低、中等应力率下裂隙断裂起动应力的新公式。
BACKGROUND: Common metal bone fracture plate had powerful stress force shelter reaction in fixed bone segments and moreover, is has no induction and guiding reactions in bone growth.
背景:普通金属接骨板对固定骨段具有强大的应力遮挡作用,且对骨组织生长无诱导及引导作用。
This section will introduce the concept of Fracture Mechanics and initiation and growth mechanism of fatigue cracks, in particular, fatigue crack developed from welding defects.
本节将介绍结构断裂力学概念,礼炮裂纹的起始和生长机理。尤其是从焊接缺陷开始的疲劳。
It is shown that the fracture of concrete behaved complicatedly and irregularly, which underwent explicitly a subcritical crack growth prior to the unstable crack propagation.
结果表明:混凝土断裂是一个复杂的不规则过程,存在明显的亚临界扩展现象。
The growth of structural fracture is controlled by such factors as lithology, porosity, lamellation and local structures, and the regional fracture controlled mainly by the regional stress field.
构造裂缝的发育受岩石本身的力学性质以及局部构造制约,区域裂缝则与区域应力场强度有关。
It is shown that the zigzag grain boundary may delay the initiation, growth and propagation of crack, as well as may also influence the crack morphology and the fracture mode markedly.
研究表明,弯曲晶界对裂纹的萌生、长大及扩展,对裂纹的形态及断裂方式,都有显著的影响。
Based on testing results, the relationship between velocity of granite subcritical crack growth and stress intensity factor, and the fracture toughness are obtained respectively.
根据试验结果,得到了花岗岩亚临界裂纹扩展速度与应力强度因子之间的关系和花岗岩的断裂韧度。
The methodology of fracture mechanics based on continuous crack growth was applied to the investigation of the microscopic damage evolution and toughness calculation for fiber composites.
文中以裂纹连续扩展的断裂力学方法,研究单向纤维复合材料的细观损伤演化与韧度计算。
Modeling of crack growth curve is the premise of the durability analysis based on probabilistic fracture mechanism.
裂纹扩展曲线的建模是基于概率断裂力学的耐久性分析方法的前提。
Modeling of crack growth curve is the premise of the durability analysis based on probabilistic fracture mechanism.
裂纹扩展曲线的建模是基于概率断裂力学的耐久性分析方法的前提。
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