sound tuning 中文意思是什麼
sound tuning
解釋
聲調諧-
After careful testing and tuning, the inspection system appears good to the inspection of sound, chalky and off - type kernels, and rice screenings
本系統在連續大量檢測米粒時，其整體分類正確率超過80 % ，檢出完整粒的精確度約為97 % 。 -
A tuning fork transmits sound waves through the air
音叉通過空氣傳播聲音。 -
The nature of the wave motion in sound can be made clear by considering the tuning fork.
對于音叉的考查可以使我們清楚地理解聲波波動的本質。 -
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神經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，同時使c - 40和i - 40的最低閾值的差別進一步增大，提高了信噪比，提高下丘聽神經元對聲源方位和最佳頻率的分辨能力。 -
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
通過對幼年（出生后第四周）和成年蝙蝠下丘聽神經元頻率調諧的方向敏感性的比較，發現幼年蝙蝠頻率調諧的方向敏感性比成年蝙蝠差，並認為可能是動物發育過程中，下丘的興奮性和抑制性輸入的整合也有一個發育的過程。 -
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. )
本實驗旨在探討弱噪聲對小鼠（ musmusculuskm ）中腦下丘（ inferiorcolliculusic ）神經元聲信號提取的影響及其神經機制，我們選用相當于純音閾下5db的白噪聲（ whitenoise ） ，比較加入噪聲前後神經元頻率調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 ）后對該變化的影響。 -
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
結果表明： 1 ）同頻層神經元之間或者非同頻層之間神經元之間存在相互作用，這種作用既有相互抑制（ 18對，佔81 . 8 ） ，也有相互易化（ 4對，佔18 . 2 ） ，且同頻層神經元之間的相互抑制作用較非同頻層神經元之間的相互抑制作用要強； 2 ）神經元對低刺激強度反應時，所受到的相互抑制作用較強，隨著聲刺激強度加大，抑制作用逐步降低（ p 0 . 001 ， anova ） ； 3 ）對閾上10db放電率抑制百分比進行的分析顯示，配對神經元之間的最佳頻率差越小，相互抑制作用越強（ r = - 0 . 545 ， p = 0 . 0006 ） ； 4 ）配對神經元之間通過相互抑制作用可表kx碩士學位論文waiaster 』 sthesis現出調諧銳化作用，該作用的效率與頻率有關， bf處的銳化作用較低，偏離bf時其銳化作用逐步加強； 5 ）頻率銳化作用的效率與bf差有關，隨著配對神經元之間的bf差擴亢q10 ， q30值的變化逐漸減小，其變化百分比與配對神經元之間的頻率差存在明顯相關； 6 ）配對神經元之間的相互易化作用不僅表現在放電率增加上，也表現在頻率調諧曲線的擴寬，即頻率響應范圍擴大。 -
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共振在_ _仁行傳入過程中可能激活了至所一記錄的jc神經元的gaba能抑制性神經迴路，這種gaba能抑制為銳化神經元頻率調諧提供了一種抑制性輸入，使ic神經元對靠近最佳頻率的頻率分析變得更為細致和精確，由於聲頻率是聲信號的重要參數和信息載體，頻率調諧的銳化意味著對聲頻率分析能力增強，從而為解釋人們為什麼能從充滿噪聲的環境中捕捉或提取與行為學相關的信號提供了一種細胞水平的實驗證據。 -
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
本實驗共用12隻健康、聽力正常的成年小鼠，雌雄不拘，共獲得177個神經元，測量了76個神經元的頻率調諧曲線（ frequencytuningcurve ， ftc ） ，發現弱噪聲對神經元ftc的影響有三種類型：銳化、拓寬和基本不受影響。 -
Control panel : computer, monitor, fan, switch of stereo, sound volume and tuning
控制面板:主機，顯示器，風扇，音響開關，音量，音調調諧。 -
Stereo sound tuning earphone
立體聲調音耳機 -
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制皮層下神經元方向性性信息的概念，並發現，下丘神經元頻率調諧的方向敏感性的形成中，聽皮層的下行調制有重要作用。 -
The room sound may help dictate the best tuning if you don ' t use a pillow
房間的聲音可能會對幫助你完成最佳的調節有所指示，如果你不用鼓枕的話。 -
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
木實驗結果首次顯示弱噪聲可銳化小鼠大部分ic神經元的ftc ，使神經元對聲信號分析增強，高頻調諧敏感性增加:而bic去gaba能抑制后，能全部或部分的解除弱噪聲對神經元ftc的抑制。
分享友人