A mathematic model of the false alarm ratio(FAR) and the multiplication factor of APD is established.
为保证激光陀螺中雪崩光电二极管(APD)在温度变化的情况下始终处于最佳工作状态,从APD的倍增机理出发,分析了温度对雪崩增益的影响,建立了虚警率与APD倍增因子的数学模型,并采用监测雪崩噪声平均过阈率的方法,得到器件的实际击穿电压温度系数γ=6。
One is based on the charge sheet approach,the other is based on calculating a multiplication factor.
一种是基于面电荷的方法,另一种是基于求雪崩倍增因子的方法。
The relationships of the background radiant power,the multiplication factor,and the optimum signal-to-noise ratio of the receiving system were analyzed.
本文分析了背景辐射功率、倍增因子与激光高度计最佳信噪比之间的关系,并利用积分球进行了不同背景辐射功率下的信噪比试验,验证了背景辐射功率以及雪崩二极管倍增因子对接收系统信噪比的影响。
Cultivated three kinds of lactic acid bacteria(LAB) in order to searching for the multiplication factors.
确定了提取姬松茸多糖的最佳工艺参数,即温度100℃,时间5h,pH值为10;研究了多糖对乳酸菌生长的影响,采用DEAE-纤维素柱层析分离姬松茸粗多糖,得到3种多糖,通过对乳酸菌的培养寻找增殖因子;测定乳酸菌的生长曲线、菌液OD值与pH值,比较了3种多糖对乳酸菌的促生长作用的差异。
It cultivated two kinds of lactic acid bacteria(LAB) with a kind of special medium which was added with 1 percent of PS as multiplication factor,cultivated at 37℃ and compared with blank sample.
实验采用DEAE-纤维素柱层析法分离食用菌提取物,得到3种多糖,通过对在培养乳酸菌的MRS培养基中添加1%3种多糖作为增殖因子,并作空白对照,37℃恒温培养,测定乳酸菌的生长曲线、菌液OD值与pH值,比较3种多糖对乳酸菌的促生长作用的差异得出,多糖Ⅰ、多糖Ⅱ对乳酸菌的增殖作用比较明显,多糖Ⅲ的增殖作用因大分子多糖与蛋白-多糖复合物含量较大而次之,但是3种多糖培养乳酸菌对数期期间活菌数都达到了1010cfu/mL以上,培养终止时间为12h。
Experimental Study on Two-Phase Fractional Multiplier of Post Dry-Out Mist Flow in Vertical Narrow Annuli
环形窄缝通道内干涸后摩擦倍增因子的试验研究
crossed-field electron beam multiplier
交叉场电子束倍增器
silicon electron multiplier target vidico
硅靶电子倍增视像管
secondary emission multiplier
二次发射电子倍增管
silicon electron multiplier targetvidicon
硅电子倍增靶视象管
cross-field electron beam multiplier
交叉电场电子束倍增器
secondary electron multipactor limiter
次级电子倍增限幅器
microchannel electron multiplier
微通道式电子倍增器
venetian blind dynode
软百叶帘电子倍增歧极
Influencing Factors of Image Uniformity Affected by Output Probability Distribution of Charge Carrier Multiplier
电荷载流子倍增输出概率分布对图像均匀性影响因素研究
image intensifier with transmitted secondary electron multiplication
透射式二次电子倍增象增强器
a common denominator/factor/multiple
公分母/公因子/公倍数
He did so, and thus doubled his income.
他照办了，因此收入就增加了一倍。
Something increased twofold.
倍增成倍增加的东西
The sales of industrial electronic products have multiplied six times.
工业电子产品销售额增加了五倍。
parallel plate electron multiplier
平行板电极式电子倍增管
pulse saturated channel electron multiplier
脉冲饱和通道式电子倍增器
