High performances liquid chromatography method for analyzing CHP and related substance was established by Shim-pack CLC-SIL(4.6 mm×250 mm,5 μm)column. Gradient was adopted at the detection of 230 nm with a diode array detector.
The Marx and diode voltages are 1.1MV and 620kV, respectively, with a diode current of 160kA and e- beam energy of 8kJ. The total gas pressure is 0.25MPa (F2 : Kr : Ar = 0.4 : 10 : 89.6). The reflectivities of the laser cavity mirrors are 96% and 25%, respectively.
The optimized result has a dominant frequency of 3.45 GHz with 3% bandwidth(3 dB),a power of 310 MW,and a conversion efficiency of 6.8% with a cathode radius of 7 cm,an anode radius of 5.5 cm,a diode voltage of 250 kV,and a current of 20 kA.
The step voltage generation process and mechanism in the step recovery diode(SRD) were analyzed and a new SRD model was proposed based on the parallel connection of a nonlinear capacitance and a PN diode.
In this paper, high performance liquid chromatography (HPLC) along with mass spectrometry (MS) and HPLC along with a diode array detector (DAD) was used to study the compound Ilex pubescens extract.
However, a ripple current occurs in the inactive phase due to the diode freewheeling during the non-commutation period in the traditional pulse width modulation (PWM) methods, which aggravates the torque ripples.
In this paper, high performance liquid chromatography (HPLC) along with mass spectrometry (MS) and HPLC along with a diode array detector (DAD) was used to study the compound Ilex pubescens extract.
A principle of constructing a combined semiconductor switch based on a diode assembly and an assembly of reverse switch-on dynistors (RSDs) is considered.