| 1. | Ozone enhancement was observed in the lower troposphere over kunming on 21 march 2001 using electrochemical concentration cell ozonesondes
摘要2001 - 03 - 21在昆明用电化学臭氧探空仪探测到了对流层低层异常的高浓度臭氧分布。
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| 2. | As a comparison , ba1 . 03ce0 . 8gd0 . 2o3 - was synthesized by sol - gel method . among these samples , nonstoichiometric samples were synthesized for the first time . the research work involved : the crystal phase of the sinters were determined by xrd ; ionic conduction under different experimental atmospheres was measured by gas concentration cells ; performances of hydrogen - air fuel cells with the sinters as electrolytes and porous pt as electrodes were measured
用粉末x射线衍射仪鉴定它们的结晶相；在( 600 1000 )范围内，以烧结体作为电解质隔膜，多孔性pt黑为正、负电极， pt - rh合金网为集电极，分别组成氢浓差电池、氧浓差电池及氢?空气燃料电池并测定了它们的性能，研究了不同气氛下样品的离子导电特性及影响燃料电池性能的因素。
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| 3. | On the base of these theory calculations , we passivated the front - surface both of different surface doping concentration solar cells by a thin layer of thermally grown sio2 . the results show that the in heavy surface doping concentration cell is lower compared to the cell in light surface doping concentration . the majority of improvement in comes from the emitter surface passivation
接着采用sio2作为钝化膜，从实验上比较了在不同表面浓度下单晶硅太阳电池的钝化效果，结果表明在高表面浓度下其开路电压比低表面浓度下的开路电压低，这开路电压的提高主要来源于降低了前表面复合。
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