燕尾狀 的英文怎麼說
中文拼音 [yānwěizhuàng]
燕尾狀
英文
swallow tailed-
First, the theory of fretting wear and studies on fretting fatigue were introduced and the parametric method was used in the process of creating the model of dovetail joints in ug software. the elastic contact problem is analyzed in finite element method ( fem ) and is used to the parameters " distribution and contact stress of the joint are obtained on the base of ansys code. with the effect factor of load frequency, the prediction method of fretting fatigue life of dovetail joint under low and high / low cycle complex load is proposed
本文介紹了微動損傷的機理和微動疲勞壽命的研究方法；利用ug軟體對燕尾榫聯接結構創建了參數化實體模型；基於ansys軟體平臺求解彈性接觸問題，獲得了榫聯接結構接觸應力及接觸狀態量的分佈；在已有微動疲勞壽命預測模型的基礎上，引入載荷頻率影響因子，對低周、高低周復合載荷作用下的燕尾榫聯接結構進行了微動疲勞壽命的預測，與試驗結果對比表明採用本文提出的方法預測榫聯接結構的微動疲勞壽命是有效的。While studying the wings of swallowtail butterflies, researchers discovered that there were a lot of similarities between the scale coverings and leds
科學家在研究非洲燕尾蝶的時候，發現其翅膀上的鱗狀覆蓋物和發光二級管之間擁有很多相似的地方。In this paper, cholinergic neurons was mapped in the two kinds of birds ( emberiza rutila and fringilla montifringilla ) by using immunohistochemical method. the soma size and cell density of cholinergic neurons in the three song control nuclei, the higher vocal center ( hvc ), the robust nucleus of the archistriatum ( ra ) and area x, were measured and compared. here we discussed the distribution of cholinergic neurons and their effect on the process of song producing and song learning. the results show that chat - li was found in hvc, ra and areax of forebrain
本文以中國北方地區常見的兩種鳴禽栗? （ emberizarutila ）和燕雀（ fringillamontifringilla ）為材料，應用免疫組化方法，對兩種鳴禽發聲控制核團，即上紋狀體腹側尾核或高級發聲中樞（ hvc ） 、古紋狀體粗核（ ra ） 、 x區（ areax ）內膽堿能神經元的胞體大小和胞體密度進行了觀察測量，旨在探討膽堿能神經元在發聲控制核團內的分佈情況及其在鳴囀產生和學習過程中的作用。Considering the influence of high evanescent modes, we have obtained the common theory. by the comparing between theoretical calculation and experimental data, we found the theory can accurately describe the high - frequency characteristic of this kind of slow - wave helical groove structure. then, five representative shapes are chosen and researched particularly ( triangle shape, cosine shape, trapezoid shape, rectangular shape and swallow - tailed shape )
主要工作成果和創新之處在於: 1 .通過考慮高次模式的影響，獲得了一種更為精確分析任意槽形螺旋槽結構的普遍理論，經與實驗測量值比較，發現它更能準確可靠地描述此類螺旋慢波結構的高頻特性，然後詳細研究了五種槽形狀（三角形槽、餘弦形槽、梯形槽、矩形槽和燕尾形槽）對螺旋槽慢波系統導波特性的影響。The results show that : ( a ) the influence of the groove shape on the low cut - off frequency is great at certain groove depth ; the high cut - off frequency is gradually lowered from triangle profile, cosine profile to swallow - tailed profile
結論為: （ 1 ）槽深較大情況下，槽形狀對截至頻率影響較大，槽形狀從三角形變化到燕尾形，截至頻率依次降低。The results show that : ( a ) the influence of the groove shape on the high cut - off frequency is great at certain groove depth ; the high cut - off frequency is gradually lowered from triangle profile, cosine profile to swallow - tailed profile
結論為：中文摘要（ 1 ）適當槽深情況下，槽形狀對高截止頻率影響較大；槽形狀從三角形變化到餘弦形直到燕尾形，高截止頻率依次降低。分享友人