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values in the eastern Pacific and lower values in the central Pacific. Coupling among POC concentrations, aggregating rates and POC fluxes support that POC fluxes is regulated by POC aggregating rates......
and coaxial. The temperature on the outer wall during different heat fluxes was collected. According to the principle of the least square method, an experimental correlation was established to reveal......
) of cadmium ions and permeate fluxes were investigated. The results indicate that the retention of cadmium ions depends strongly on pH and increases with the increase of pH at a certain P/M......
be classified as the crack at the cathodic interface between solder and outer IMC layer.The atomic fluxes concerned cathode dissolution and crack initiation were analyzed.When Fe-Ni UBM was added,cathode......
to estimate the rotor fluxes, speed and time constant using the stator currents and voltages. Simulation and experimental results show that the proposed method can adjust the PID parameters online......
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惰气熔融-红外热导法同时测定铌钛合金中氧和氮石新层1,周恺2,杨军红1(1.陕西省西安市西部金属材料股份有限公司2.西北有色金属研究院材料 分析中心,陕西西安 710016)摘 要:采用脉冲惰气熔样,红外测定氧,热导测定氮,建立了同时测定铌钛合金中杂质氧和氮的新方法.研究了不同助熔剂,加热功率以及称样量和助熔剂量的比例对实验结果的影响.在分析功率为5.3 kW,用镍做助熔剂,称样量和助熔剂的比例为1∶20的条件下对铌钛合金试样进行测定,氧和氮的相对标准偏差分别为3.0%,5.9%;加标回收率分别为91%~117......