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restore strategies of the old cement concrete pavement were investigated to validate the availability on the reflection-crack resistance in the asphalt concrete(AC) layer through beam... concrete(AC) layer; reflection crack 旧水泥混凝土路面加铺沥青混凝土罩面层后构成复合式路面,可改善原水泥混凝土路面的使用性能,提高路面行驶的舒适性,同时又能充分利用旧水泥混凝土路面的剩余强度,且对交通及环境影响较小.由于旧水泥混凝土板存在较多的破损接缝,在温度应力和行车荷载作用下,在使用的短时期内,AC(asphalt concrete)层在水泥混凝土板破损接缝的对应位......
wavelet transform was put forward. Taking account of optimal parameters selection problem of lifting wavelet signal process, the lifting wavelet filter and layer numbers were optimally chosen......
of BaZrO3 refractory after contacting the melt with different time were studied. The results show that the thickness of erosion layer of the BaZrO3 crucible is measured as about 2000 μm. The Zr and O elements......
chloride adjusts the surface potential of serpentine through compressing double electrode layer and then disperses serpentine and pyrite, then improving the flotation performance of pyrite. Key words......
with different concentrations. Based on theory of the diffuse double layer and micro-structure characteristics of soil particles, effect mechanism of salt solutions on permeability coefficient of the mixtures......
the mass fraction of chlorites, the finer the particle size is, which leads to greater pulp viscosity, higher height of flotation foam layer and longer half-life of the foam, resulting in more serious non......
to the disintegrated gas bubbles formed at the interface between the electrolyte and substrate. According to the theory of contact glow discharge model, the layer growth causes the enlargement of some microdischarges, and the enlargement of the microdischarges with the thickening layer can be explained by decreasing thermal input to the substrate metal from heated gas bubbles. This has the effect of increasing......
sites distribute over the biosorbent surface homogeneously, thus presenting the same affinity for biosorption of a single molecular layer [26]. A good biosorbent is considered to be characterized... the molecules in the layer decreases linearly with coverage due to adsorbent-adsorbate interactions, and the adsorption is characterized by a uniform distribution of the binding energies, up......
criterion in the analysis. The large displacement of soil was considered and contact elements were used to evaluate the interaction between pile and soil. The influences of soil depth of layer and number... of the nonlinearity include properties and depth of soft soil layer, diameter, number and spacing of piles, and constraints from upper structure. Up to date, limited studies on these influencing......
to a different degree that grows with the numbers of bombardment, and in the surface layer amorphous states and nanocrystaline structures consisting of grains of γ-phase and cementite are found... in the formation of metastable phase states in the near-surface layer. This is associated with high quenching rates (about 108 K/s) from liquid state of the thin surface (about 0.1-1.0 μm). This treatment sub......