- 频率因数
- 频率因子
- frequency: n. 1.屡次，频仍，频繁。 2.(脉搏等的)次数，出现 ...
- factor: n. 1.〔英国〕经销人；(代客买卖收取佣金的)经纪人； ...
- arrhenius frequency factor: 阿雷尼厄斯频率因子; 阿仑尼乌斯频率因素
- audio-frequency variation factor: 声频波动因数; 音频波动因数
- frequency attenuation factor: 频率衰减因子
下载手机词典可随时随地查词查翻译
frequency factor中文什么意思
- 频率因数
- 频率因子
下载手机词典可随时随地查词查翻译
例句与用法
- Frequency factor is linear to trap depth
频率因子与陷阱深度呈近似线形关系。 - The experiment result of a 50v / 20a communication power frequency factor correction circuit is also given
功率因数达到0 . 99以下，适用于大功率应用场合。 - This text completely and systematically studies the status and the development of the pyrolysis and the fluidization of biomass , which distill the bio - oil in the domestic and international area , as well as the existing problems . this thesis primarily include following aspects : ( l ) , by experimenting and measuring the energy ( heat value ) and the content of c , h , n chemical element of right 20 kinds of common biomass , on the base of the experimental result , and respectively established the biomass energy predict experiment formula with the element of h and c is from change , and passed the ro . os examination , which provides the basis and convenience for flash pyrolysis fluidization device energy to convert the rate to compute with biomass energy utilization calculation ; ( 2 ) , proceeded the tg and dtg experimentation equal velocity ( 10 ? / min , 20 ? / min , 40 ? / min , 60 ? / min ) heating and constant temperature heating by studying on eight kinds of biomass samples , according to the experimental data and arrhenius formula , we established the dynamics model of pyrolysis of , then , using the goast - redfern and p function , we also solved the dynamics parameters and analyze out every kind of biomass ' s frequency factor and parameters of activation energy , and established the every kind of dynamics model of pyrolysis of biomass , all of these provide the theories and basis to make sure the reactor ' s flash pyrolysis work temperature scope design and the describing of pyrolysis reactor dynamics ; ( 3 ) , in order to study and ascertain the process of heat completely getting to pyrolysis time of varied size biomass particles , we observed and measured the ratio of length and diameter ( l / d ) with the varied biomass through electron microscope , we concluded the l / d ratios usually is from 5 . 0 to 6 . 0 , the average is 5 . 3 ; ( 4 ) , we studied the process of biomass transiting and the theory of complete pyrolysis time with the theory of complicated heat field , we got the time ( t ) of the varied size biomass particles arriving to complete pyrolysis , and we knew that the complete pyrolysis time and the time which get to the biggest production ratio are identical , all of these studies provide the theory base for design and forecasting the flash pyrolysis reactor solid state resort time ; ( 5 ) , according to the above experiment result , synthesize to make use of the engineering the mechanics , engineering the material , machine the design to learn the principle , deduce , establish the theory of rotation cone flash pyrolysis reactor material resort time ( t ) and reasonable rotation velocity ( or frequency ) relation theory ; and ( 6 ) , we gave the reactor ' s smallest cone angle certain , reactor cone wall strength design theory , the reactor production ability theory , the power design method and the critical rotation velocity theory
本文较全面、系统地综述了国内外生物质热解液化制取生物燃油技术研究发展现状及存在的问题，主要研究内容有： ( 1 )实验、测定了20种常见生物质的能量(发热量)和c 、 h 、 n元素含量，根据实验结果分别建立了以h和c为自变量的生物质能量预测经验公式，并通过r _ ( 0 . 05 )检验；为闪速热解液化装置能量转化率计算和生物质能量利用率计算提供了依据和方便； ( 2 )选择了8种生物质试样作了等加热速率( 10 min 、 20 min 、 40 min 、 60 min )和恒温加热的tg和dtg实验，根据实验数据和阿伦尼乌斯公式建立了生物质热解反应动力学微分方程，并采用goast - redfem积分法和p函数对其动力学参数进行了求解，解析出各种生物质的频率因子和活化能参数，进而建立了各种生物质的热解动力学模型，为科学确定反应器的闪速热解工作温度范围及热解反应动力学描述，提供了理论和依据； ( 3 )为研究和确定不同尺度的生物质颗粒中心达到全热解的时间，在体视显微镜下对不同粒度的生物质颗粒的长径比进行了实验观察和测定，得出生物质的长径比( l d )一般在5 . 0 6 . 0之间，平均为5 . 3的结果； ( 4 )采用复杂温度场传热学理论对生物质传热过程及充分热解时间理论进行了研究，解析推导出了不同尺寸生物质颗粒中心温度达到充分热解温度的时间( t ) ，得出了理论推导的充分热解时间与最大产油率的热解时间相一致的结果，为闪速热解反应器固相滞留时间设计和预测提供了理论依据； ( 5 )根据上述实验结果，综合运用工程力学、工程材料、机械设计学原理，推导、建立了转锥式闪速热解反应器物料滞留时间( )与转速(或频率)合理匹配理论； ( 6 )提出了转锥式闪速热解反应器的最小锥角设计、锥壁强度设计、生产能力设计理论和功率计算方法及临界转速理论等。 - Individual factor is divided into cognition factor , personality factor , competence factor and appearance factor . mutual factor is divided into mutual space / distance factor , mutual intercourse frequency factor , mutual similarity factor , mutual complementary factor and mutual adoration factor . and exterior factor is considered to include social circumstance factor and school circumstance factor
再对三大因素分别进行进一步聚类分析，个体因素又被分成认知因素、个性品质因素、能力因素和仪表因素；双方互动因素被分成双方空间距离因素、双方交往频率因素、双方相似因素、双方互补因素和相悦因素；外部因素被分成社会环境因素和学校环境因素。