When theresin concentration exceed 10%, three types of recovery swelling experiment indicate that thetransverse compressive deformation was almost 100% fixed. The X-ray and FTIR spectra ofcompressive wood treated by PF show that the width of crystalline region and crystallinitywas hardly changed comparing with untreated wood; Esterified carbonyl degree at 1736cm-1and the end carbon degree of semicellulose at 897cm-1 increased.
当树脂浓度超过10%时,三种循环膨胀实验证明,木材横纹压缩变形几乎100%被固定。X-射线衍射谱图和FTIR光谱表明,PF预聚物处理后的压密材同素材相比,结晶区的宽度和结晶度几乎没发生改变;1736cm-1处酯化羰基峰强度增加,897cm-1处半纤维素异头碳(C1)峰强度增加。
Among above deformation, the thrust-fold structure formed in Triassic established the E-W trend framework controlling the distribution of the late compressive settling. The NNE-NE trend obduction zone and regional folds is contributed to effect of Tethys tectonic region superimposed by Paleo-Pacific tectonic region.
其中三叠纪挤压变形产生的冲断—褶皱构造,奠定了本区中生代近东西向构造格局,并控制后期挤压坳陷型盆地的的空间展布规律;晚侏罗世早期挤压形成的北北东—北东向逆冲推覆构造带和区域性褶皱是特提斯构造域与古太平洋构造域共同叠加的结果。
The effect of thermomechanical treatment processing (immediate quenching after deformation in the austenite non-recrystallization region) on microstructures of Tgl ferritic heat resistant steel was investigated by compressive deformation performed on a Gleeble 1500 thermomechanical simulator.
在Gleeble 1500热模拟实验机上采用热压缩实验方法,研究了形变热处理工艺即在奥氏体未再结晶区变形后直接淬火对T91铁素体耐热钢微观组织的影响。
By separating the flame front and the compressive wave, we found that the compressive wave formed in the burning region behind the flame front, with the increase of its strength and velocity, the compressive wave would overtake the flame front and form a strong shock wave to initiate the detonation.
通过将火焰阵面和强压缩波阵面的分离,发现压缩波形成于火焰阵面之后的已燃区,它将不断加强与加速,最后赶上火焰峰,形成强冲击波,并由冲击波诱发爆轰。
The compressive stress-strain curve of cellular Al alloy consists of three distinct regions, i. e., the linear elasticity region, the plastic collapse region or brittle crushing region, and the densification region. Spherical pores Al foam is a cellular metal material of high plastic performance, so energy absorption capability of it is bigger than that of spherical pores Al alloy foam...
结果表明:球形孔泡沫纯铝与球形孔泡沫铝合金的压缩应力-应变曲线相似,分为三个部分:线弹性阶段、平台阶段和密实阶段;球形孔泡沫纯铝相对于球形孔泡沫铝合金是一种吸能能力更强、韧性更好的新材料;采用Gibson-Ashby模型来分析球形孔泡沫纯铝的压缩屈服强度,吻合良好。
Nestin+/GFAP+ cells obtained by isolating the gray and the white substance of spinal cord outside the ependymal region around central tube after compressive spinal cord injury in adult rat has the abil ity of self-renewal and the potential of multi-polarization and may be a renewable source of NSCs in the central nervous system.
成年大鼠压迫性脊髓损伤后,剔除中央管周围室管膜区脊髓白质与灰质分离而得的nestin+/GFAP+细胞,具有自我更新能力和多分化潜能,是中枢神经系统的NSCs。
Finite element study of the effects of compressive load on the fatigue crack growth in Paris Region
压载荷对疲劳裂纹在Paris区内扩展影响的有限元研究
It is presented that the material at the transition region is the easiest region to satisfy plastic yielding conditions and produce thickness compressive strain.
提出内高压成形中圆角和直边的过渡区材料最易满足塑性屈服条件,并发生厚度方向的压缩应变,因此在过渡区易发生剧烈的减薄变形;
The results show that the tangential residual stress is tensile and the radial residual stress is compressive in the exterior loop of the tensioned region;
结果表明,对于未适张锯片,辊压带内外锯片上切向和径向应力均为压应力;
Isolation and culture of neural stem cells in injured region of compressive spinal cord injury in adult rat
成年大鼠压迫性脊髓损伤后损伤区神经干细胞的分离培养实验研究
Azimuths of the horizontal component of compressive stress P-axes likely lie between 20 ° and 40 °, forming a nearly NE-directed stress field in the wide region west of the North-South Seismic Belt.
在青藏高原周缘地区和中国西部的大范围内,压应力P轴水平分量方位位于20~40°,形成了近NE方向的挤压应力场。
It serves as a reference for the design and analysis of dams, concrete roads, bridges which are subjected to biaxial compressive load in northern cold region.
它为北方寒冷地区的混凝土结构,如水坝、混凝土路面等处于双轴压组合荷载作用下混凝土结构的设计、分析提供了理论依据。
The method to define the ultimate limit state of carrying capacity, critical failure, critical strengthened quantity and critical height coefficient of concrete compressive region is suggested.
对粘贴碳纤维布抗弯加固梁正截面承载能力极限状态、界限破坏状态以及界限加固量进行了合理的界定。
The result shows that the orientation of the principle compressive strain axis is generally north-west-west within this region, i. e. the recent compression is along this direction.
其结果表明,此区内主压应变轴走向大都近于北西西向即近期承受北西西向的压应力作用。
Between the Gansu Qinghai block and Alxa block there is a broad compressive deformation zone, which turns essentially to be a network like deformation region to the southeast.
甘-青地块与阿拉善地块之间有一个宽阔的挤压变形带,该挤压带东南端转变为以网络状水平剪切变形为主。
Under oblique load, the high-stress region was near around the cervical of periodontal ligament with both tensile and compressive stresses.
斜向载荷下,基牙牙周膜的应力主要是拉应力和压应力,应力集中在唇、舌颈缘。
Under dynamic loading, buried pipe would first damaged in compressive region of bilateral fault, so special treatment should be done to pipe in bilateral fault region.
在受动荷载作用时,管道在断层两侧受压区先破坏,故在断层两侧要进行特殊处理进行防护。
It is interesting that the transverse wave propagation in double walled carbon nanotubes with initial compressive stress appears at most three different wave speeds in some frequency region, which is different from those results of carbon nanotubes with or without initial tensile stress.
双层碳纳米管受轴向初始压应力时,在某个频率区域存在最多三个横向波速,与受轴向初始拉应力和未受轴向应力时最多只存在两个横向波速有所不同。
The anteromedial region with the highest elastic modulus probably withstands the highest compressive pressure during mastication and perhaps is the loading region in the TMJ.
在咀嚼过程中,具有最大弹性模量的髁突前内侧软骨可能在TMJ中承担最大的压力,为关节的功能承载区。
Because of the existence of prestress, the compressive region is enlarged and the primary bending stiffness is developed.
在正常使用状态下,由于预制断面上荷载预应力的存在,增大了断面的有效受压区面积,从而提高了叠合构件的初期抗弯刚度。