Results 31 to 40 of about 3,156 (150)
用预放电电流法测量了SF6气体以及SF6/CO2混合气体的正负离子迁移率。实验数据表明,正负离子迁移率只是E/p的函数,SF6/CO2混合气体的正负离子迁移率随CO2含量的增加而增大。
王沛, 王中方, 张乔根, 邱毓昌
doaj
Analysis of Physicochemical Quality and Flavor Differences of Five Commercially Available Tiger Nut Oils with Different Processes Based on GC-IMS Technique [PDF]
In order to evaluate the differences in physicochemical quality and flavor of commercially edible tiger nut oil, gas chromatography-ion mobility spectroscopy (GC-IMS) combined with principal component analysis was used to compare the volatile compounds ...
Changqing WEI +5 more
core +1 more source
利用直流电晕放电的电流—电压关系,测量了SF6气体、SF6/空气和SF6/R12混合气体中离子的平均迁移率。结果表明,添加气体对SF6绝缘性能的改善不在于离子迁移率的变化。
周黎明, 邱毓昌
doaj
Properties of Germanium Composited Lithium Phosphate Solid Electrolyte Thin Film [PDF]
固体电解质,作为一种具有离子导电性的固态物质,其应用已经渗透到很多的领域,如新型固体电池、高温氧化物燃料电池、离子传导型传感器件和太阳能电池等。其中固体电解质在锂离子电池中有着极其重要的应用,其固态性质可以大大提高锂离子电池的安全性,并且使手机等电子设备实现超长待机。在此之前研究较多的固体电解质薄膜为无定形态的LiPON,其离子电导率已达到1×10-6~3×10-6S/cm。通过在磷酸锂中掺杂氮元素,改善了磷酸锂本身较差的离子电导率(~10-18S/cm)。近期 ...
孙士博
core
Comparison of volatile compounds between the green and yellow ripening fruits of four guava species [PDF]
[Objective] This study aimed to analyze the differences in volatile compounds between the mature green and mature yellow fruits of guava. [Methods] The volatile compounds in 4 kinds of guava fruits during the mature green and mature yellow were detected ...
LIN Zhixin +4 more
core +1 more source
根据西北黄土坡面溶质随地表径流迁移的特点,研制了黄土坡面溶质随地表径流迁移实验系统,并利用此系统进行了室内模拟实验,根据实验资料分析了土壤中各种离子随地表径流迁移特性,详细分析了土壤溶质随地表径流迁移机理。
王全九 秦务光 等
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Study of Solid Oxide Fuel Cell Electrolytes Based on Lanthanum Gallate [PDF]
Sr、Mg双掺杂的镓酸镧具有高氧离子电导率、高氧离子迁移数与较好的稳定性,是目前研究广泛的中温固体氧化物燃料电池(ITSOFC)电解质材料。本文采用交流阻抗和Hebb-Wagner极化法研究了氧化铝掺杂的La0.9Sr0.1Ga0.8Mg0.2O3-d和钴掺杂的La0.8Sr0.2Ga0.8Mg0.2O3-d材料的电导特性,利用热重分析法考察了钴掺杂的La0.8Sr0.2Ga0.8Mg0.2O3-d中钴离子的价态以及氧空位浓度随氧分压的变化,并用电动势法测定了系列镓酸镧材料的平均氧离子迁移数 ...
吴玲丽
core
Analysis of Postharvest Quality and Volatile Substances of Different Tomato Varieties [PDF]
In order to clarify the differences of postharest quality and volatile substances of different tomato varieties, the volatile substances of different tomato varieties ('567' 'Provence' 'Youshi No.3' 'Warrior 808' 'Meiqi') were determined by gas ...
Di WU +6 more
core +1 more source
依据洞庭湖水系江湖流域中的主要水文站实测的悬移质模数(1951-1990年)和离子径流模数(198501988年)以及计算资料,运用自然地理学的理论、方法研究了物质侵蚀特性以及物质迁移与归宿的动态变化,同时从地理环境状况的角度上分析了影响物质物质侵蚀迁移的主导因素。
李景保 刘晓清
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