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The field test of moulding concrete rigid panel faced geogrids reinforced soil retaining wall is done in the Gan (Zhou)-Long (Yan) railway main line of China. The basement vertical pressure of reinforced soil retaining wall is non-linear along the reinforcement length, and the maximum value is at the middle of the reinforcement length, moreover the value reduce gradually at former and bottom. The...
The geogrid’s horizontal deformation of geogrid reinforced earth retaining wall was observed installing the gentle displacement gauge on the geogrids. And the strain rule which increase along with the tensile speed and the strength increasing were concluded from geogrid indoor test at the same time. The geogrid’s horizontal deformation rule of geogrid reinforced earth retaining wall was concluded...
To fit the demand of train speeding, existed railway should be widened, which causes the redistribution of the stress in the consolidated soft soil foundation that leads to unequal post-construction settlement, influences the stability of the roadbed. To eliminate above diseases, geogrid and plastic drainage plate usually be used. The paper uses FEM from aspects as layout manner, length, stiffness,...
We report a novel microfluidic surface-enhanced Raman scattering (SERS) device, which is achieved by bonding a polydimethylsiloxane cap with a microchannel structure onto an SERS-active substrate composed of noble-metal covered silicon nanopillar forests. The silicon nanopillar forests are fabricated by using nanomaterial dots, which are introduced in oxygen-plasma bombardment of photoresist, as etching...
Knowledge management is the source to improve enterprise core competitive ability in the knowledge economic ages. The evaluation of enterprise knowledge management performance based on gap analysis consists of determination of the evaluation object, application of evaluation method and analysis of evaluation results. An evaluation index system of enterprises knowledge management performance with two-stage...
Minority carrier lifetime was determined by MW-PCD method following the industry process well and truly. The wafer as-cut without any treatment showed an effective lifetime about 1.2mus. Then it rose to 2.5~5mus after one side was passivated by silicon nitride. The average lifetime with double layer passivation sharply increased to 48mus average, even over 100mus locally. The escape of hydrogen was...
Extreme ultraviolet (EUV) radiation with wavelengths of 11 to 14 nm is seen as the most promising candidate for a new lithographic technology. Compared to synchrotron radiation sources and laser produced plasmas, gas discharge produced plasma (GDPP) sources for EUV radiation are expected to offer lower cost of ownership. This paper describes the dependence of EUV emission on gas flow rate. Using xenon...
With the rapid development of the semiconductor chip, the lithography applied to the ICs is facing great challenges. Compared to the traditional optical lithography, extreme ultraviolet lithography (EUVL) is regarded as one of the most promising technique among the next generation lithography. Among all EUVL system, the EUV source is key issue. Compared with other light sources, the discharge produced...
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