例句與造句

1. As a design method , frequency tuning approach ( fta ) was suggested to be used first to avoid critical frequency ranges
   建議人行橋梁設(shè)計(jì)時(shí)應(yīng)首先采用頻率調(diào)整法，使結(jié)構(gòu)自振頻率盡量不落在敏感頻率范圍內(nèi)。
2. The vibration control has two main types : initiative and passivity . i use the modulation frequency tuned mass damper to control the vibration of it and adopt ansys5 . 5 to calculate the result of it
   振動(dòng)控制主要有主動(dòng)和被動(dòng)控制，我是應(yīng)用被動(dòng)控制的調(diào)制調(diào)頻質(zhì)量阻尼器進(jìn)行橋機(jī)的控制。
3. In contrast , although application of bicuculline essentially had no effect on the bfs of ic neurons , it differentially broadened neurons ftcs at different azimuths abolishing the direction - dependent sharpening of frequency tuning
   本研究還提示，聽皮層對(duì)下丘神經(jīng)元頻率調(diào)諧的方向敏感性的調(diào)制，可能是通過改變神經(jīng)元在不同聲源方位的抑制區(qū)的大小實(shí)現(xiàn)的。
4. We also demonstrated that one corticofugai pathway is that auditory cortex sends excitatory inputs to icx and then sends inhibitory inputs to icc from icx . under free field sound stimulation conditions , we studied the sound direction effect on frequency tuning curves of inferior collicular ( ic ) neurons
   本研究首次提出了聽皮層調(diào)制皮層下神經(jīng)元方向性性信息的概念，并發(fā)現(xiàn)，下丘神經(jīng)元頻率調(diào)諧的方向敏感性的形成中，聽皮層的下行調(diào)制有重要作用。
5. In the third chapter , a methodologies to realize second - order band - pass filter with which center frequency tuned in a wide range using mcdi ( multiple output current - mode differential integrator ) , these two kinds of mcdi are composed of pmos and nmos input transistors respectively , lastly we compare these two integrators " merits and disadvantages
   第三章：提出了輸入級(jí)分別為pmos管、 nmos管的多輸出端電流模式全差分積分器，并由此構(gòu)成了中心頻率連續(xù)可調(diào)的二階帶通濾波器，同時(shí)比較了二者的優(yōu)缺點(diǎn)。
6. It's difficult to find frequency tuning in a sentence. 用frequency tuning造句挺難的
7. These data indicate that gabaergic inhibition makes an important contribution to the direction - dependent frequency tuning of most ic neurons . corticofugal modulation of the excitatory and inhibitory ftcs of most ic neurons was more pronounced at one sound direction than the other . sound direction effects on frequency tuning characteristics may undergo a postnatal development due to the development of excitation and inhibition integration
   通過對(duì)幼年(出生后第四周)和成年蝙蝠下丘聽神經(jīng)元頻率調(diào)諧的方向敏感性的比較，發(fā)現(xiàn)幼年蝙蝠頻率調(diào)諧的方向敏感性比成年蝙蝠差，并認(rèn)為可能是動(dòng)物發(fā)育過程中，下丘的興奮性和抑制性輸入的整合也有一個(gè)發(fā)育的過程。
8. This study showed that the mt and sharpness of frequency tuning curves increased as the sound direction changed from contralateral to ipsilateral azimuthal angles . it suggests that sound direction effect on frequency tuning may be through the complex interplay between the excitatory and inhibitory inputs . the application of gaba ( a ) antagonist , bicuculline , lowered all mts but the application did not abolish direction - dependent variation in mt
   聽皮層的抑制性影響使大多數(shù)神經(jīng)元在蝙蝠最敏感的聲源方位c - 40的頻率分辨能力明顯提高，同時(shí)使c - 40和i - 40的最低閾值的差別進(jìn)一步增大，提高了信噪比，提高下丘聽神經(jīng)元對(duì)聲源方位和最佳頻率的分辨能力。
9. From these results , it is tempting to speculate that the response of ic neurons to sound signal could be inhibited or facilitated by the weak noise . our data revealed for the first time that the weak noise could sharpen frequency tuning and increase the sensitivity of mouse ic neurons to high frequency of sound signal
   木實(shí)驗(yàn)結(jié)果首次顯示弱噪聲可銳化小鼠大部分ic神經(jīng)元的ftc ，使神經(jīng)元對(duì)聲信號(hào)分析增強(qiáng)，高頻調(diào)諧敏感性增加:而bic去gaba能抑制后，能全部或部分的解除弱噪聲對(duì)神經(jīng)元ftc的抑制。
10. Were used for this study . durations of tone and weak white noise bursts used as sound stimuli were both 40 ms ( 2 - ms rise - decay times ) , and delivered synchronally at 2 per second in free field . 177 neurons were obtained in this experiment , and frequency tuning curves ( ftcs ) of 76 ic neurons were measured in our study
    本實(shí)驗(yàn)共用12只健康、聽力正常的成年小鼠，雌雄不拘，共獲得177個(gè)神經(jīng)元，測(cè)量了76個(gè)神經(jīng)元的頻率調(diào)諧曲線( frequencytuningcurve ， ftc ) ，發(fā)現(xiàn)弱噪聲對(duì)神經(jīng)元ftc的影響有三種類型：銳化、拓寬和基本不受影響。
11. Corticofugal modulation of frequency tuning of inferior collicular neurons in big brown bat , eptesicus fuse us chinese science bulletin , 2000 in order to explore the possible mechanism of corticofugal modulation of excitatory frequency tuning curves ( eftcs ) of midbrain neurons , we examine the change of sharpness , frequency - intensity response area , minimum threshold of both eftcs and inhibitory frequency tuning curves ( iftcs ) of inferior coliicular neurons during corticofugal modulation using two - tone inhibition paradigm and micro - electrical stimulation technique
    第二章大棕幅聽皮層對(duì)中腦下丘聽神經(jīng)元頻率調(diào)諧曲線的調(diào)制科學(xué)通報(bào)， 2000用雙聲刺激的方法和電刺激技術(shù)，進(jìn)一步研究了在激活聽皮層前后下丘聽神經(jīng)元興奮性和抑制性頻率調(diào)諧曲線的銳度、頻率強(qiáng)度反應(yīng)區(qū)域、最低閾值的協(xié)同變化
12. 22 paired inferior collicular neurons were obtained in the experiment . the neurons were recorded in the depth of 198 - 1254 u m ( 544 . 59 ? 72 . 37 n m , m + sd ) , and their bfs were 11 . 25 - 59 . 29 khz ( 26 . 77 + 9 . 95 khz , m ? d ) : the minimum thresholds ( mts ) werelo - 66 db spl ( 38 . 14 ? 14 . 39 khz , m + sd ) ; the latencies were 4 . 0 - 16 . 0 ms ( 8 . 19 + 3 . 14 ms , m + sd ) ; the best intervals between paired sound pulses were 0 . 01 - 28 . 71 ms ( 3 . 93 + 2 . 52 ms , m ? d ) 0 the results showed : l ) there were interactions between the neurons in the iso - frequency lamina and hetero - frequency lamina which included mutual inhibition ( 18 / 22 , 81 . 8 % ) and mutual facilitation ( 4 / 22 , 18 . 2 % ) , and the mutual inhibition in iso - frequency lamina was stronger than that in hetero - frequency lamina ; 2 ) the mutual inhibition decreased with sound level increasing ( p < 0 . 001 , anova ) ; 3 ) the analysis of the inhibition of discharge rate at lodb above mt showed that the inhibition increased when the paired neurons " bfs difference decreased ( r = - 0 . 545 , p = 0 . 0006 ) ; 4 ) the mutual inhibition of paired neurons can sharpen the frequency tuning and the effect increased when the frequency was away from the bf ; 5 ) the changes in q10 , q30 decreased with bfs difference of the paired neurons increasing ; 6 ) the mutual facilitation between paired neurons not only increased discharge rate , but also widened the frequency tuning , i . e . , increased response frequency
    結(jié)果表明： 1 )同頻層神經(jīng)元之間或者非同頻層之間神經(jīng)元之間存在相互作用，這種作用既有相互抑制( 18對(duì)，占81 . 8 ) ，也有相互易化( 4對(duì)，占18 . 2 ) ，且同頻層神經(jīng)元之間的相互抑制作用較非同頻層神經(jīng)元之間的相互抑制作用要強(qiáng)； 2 )神經(jīng)元對(duì)低刺激強(qiáng)度反應(yīng)時(shí)，所受到的相互抑制作用較強(qiáng)，隨著聲刺激強(qiáng)度加大，抑制作用逐步降低( p 0 . 001 ， anova ) ； 3 )對(duì)閾上10db放電率抑制百分比進(jìn)行的分析顯示，配對(duì)神經(jīng)元之間的最佳頻率差越小，相互抑制作用越強(qiáng)( r = - 0 . 545 ， p = 0 . 0006 ) ； 4 )配對(duì)神經(jīng)元之間通過相互抑制作用可表kx碩士學(xué)位論文waiaster ’ sthesis現(xiàn)出調(diào)諧銳化作用，該作用的效率與頻率有關(guān)， bf處的銳化作用較低，偏離bf時(shí)其銳化作用逐步加強(qiáng)； 5 ）頻率銳化作用的效率與bf差有關(guān)，隨著配對(duì)神經(jīng)元之間的bf差擴(kuò)亢q10 ， q30值的變化逐漸減小，其變化百分比與配對(duì)神經(jīng)元之間的頻率差存在明顯相關(guān)； 6 ）配對(duì)神經(jīng)元之間的相互易化作用不僅表現(xiàn)在放電率增加上，也表現(xiàn)在頻率調(diào)諧曲線的擴(kuò)寬，即頻率響應(yīng)范圍擴(kuò)大。
13. On the other hand , inhibitory areas of ftc could be abolished partially or completely during bicuculline application . these results showed that gabaergic inhibitory afferent projections to recorded neurons were activated by random resonance caused by weak noise in cochlea , which provided inhibitory input for sharpening frequency tuning and made neuron more precisely analyze sound signal near its bf . therefore , this experiment presented a possible evidence of cellular level for interpreting why human and animal could extract or capture sound signal of specific frequency from the environment with competing noise
    說明山弱噪聲引起的耳蝸隨機(jī)共振在_ _仁行傳入過程中可能激活了至所一記錄的jc神經(jīng)元的gaba能抑制性神經(jīng)回路，這種gaba能抑制為銳化神經(jīng)元頻率調(diào)諧提供了一種抑制性輸入，使ic神經(jīng)元對(duì)靠近最佳頻率的頻率分析變得更為細(xì)致和精確，由于聲頻率是聲信號(hào)的重要參數(shù)和信息載體，頻率調(diào)諧的銳化意味著對(duì)聲頻率分析能力增強(qiáng)，從而為解釋人們?yōu)槭裁茨軓某錆M噪聲的環(huán)境中捕捉或提取與行為學(xué)相關(guān)的信號(hào)提供了一種細(xì)胞水平的實(shí)驗(yàn)證據(jù)。
14. In order to study the effect of weak noise on the sound signal extraction of mouse ( mus musculus km ) inferior collicular ( ic ) neurons from environment , we examined the change in frequency tuning of neuron induced by a weak noise relative to 5 db below minimum threshold ( remt - 5 db ) of tone . 12 healthy adult mice ( 20 - 25 g , b . wt . )
    本實(shí)驗(yàn)旨在探討弱噪聲對(duì)小鼠( musmusculuskm )中腦下丘( inferiorcolliculusic )神經(jīng)元聲信號(hào)提取的影響及其神經(jīng)機(jī)制，我們選用相當(dāng)于純音閾下5db的白噪聲( whitenoise ) ，比較加入噪聲前后神經(jīng)元頻率調(diào)諧曲線的變化和注射-氨基丁酸( - aminobutyricacid ， gaba )能受體拮抗劑荷包牡丹堿( bicuculline ， bic )后對(duì)該變化的影響。