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yellow and light yellow, which means that the maturity of the inclusion is relatively low. Hydrocarbon charging period in the first stage is from Jidike period to Kangcun period (23-12 Ma). Inclusions in the second phase are mainly gas-liquid inclusions with fluorescence colour of white blue, which means that the maturity of the inclusion is relatively high.Hydrocarbon charging period......
temperature of thermal explosion and reaction product were obtained. The results show that the chemical reaction of CuO Al system includes three stages, i.e. stable period, incomplete reaction period and complete reaction period in which termal explosion often occurs. [ Keyword: CuO Al powder compact; thermal explosion; temperature time curves; Received......
of other relevant experimental and theoretical studies ofsuperconductivity in that period briefly,and tries to give the authors’ comments on that history.关键词:......
MODERN HEDGING FOR EVERYONEBasil Venitis摘 要:<正> The business world is entering a new period which might well be called the Era of Hedging. Hedging is the arbitrage between futures and their corresponding spot commodities, financial instruments, or services. The modern hedger not only seeks protection from price fluctuations, but also tries......
贸易救济金禹摘 要:<正>中国2007年1月进出口同比增长26.1% China exports increased by 26.1% in Jan.2007 compared with the same period of lastyear中国海关近日发布数据显示,1月出口同比增长33.0%,达866.2亿美元;进口同比增长27.5%,达707.40亿美元;1月贸易顺差达158.80亿美元.海关数据显示,1月进出口总值同比增长30.5%,达1573.60亿美元.关键词:......
modulation period and sharp interface between TiN and TaN layers. In mutilayered TiN/TaN coatings, TiN layers have cubic structure, but hexagonal structure emerged among TaN layers besides cubic structure as modulation period is beyond 8.5 nm. The microhardness is affected by modulation period and the maximum hardness value of 31.5 GPa appears at a modulation period of 8.5 nm. The coefficient of friction......
ion plating(AIP) technique. The results revealed that the microstructure,morphologies and properties of the multilayered coatings were strongly influenced by the bilayer period(L).There were two kinds... microhardness, adhesive strength and wear resistance first increased, and then decreased slightly or remained stable as the bilayer period L < 590 nm. The multilayered Cr N/Cr2O3 coating with the bilayer......
absorption kinetics is different at different temperatures.The incubation period exists at the initial hydrogen absorption stage below 823 K,and Ka2(the reaction rate constant of Stage 2)>>Ka1(the reaction rate constant of Stage 1).And there is no incubation period over 823 K,Ka1>>Ka2.关键词:......
were investigated. For the mixture of 60% lake sludge and 40% fly ash in this experiment, the calcination regime with a pre-calcination period at about 600 ℃, a temperature keeping period at 1 200......