衰減阻力 的英文怎麼說
中文拼音 [shuāijiǎnzǔlì]
衰減阻力
英文
damping resistance- 衰 : 衰動詞(衰弱) decline; wane
- 阻 : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 衰減 : attenuation; decay; damping; reduction; rejection; weakening; deamplification; dampening; dying o...
- 阻力 : 1 (阻礙事物發展的外力) obstruction; resistance 2 [物理學] resistance; drag; drag force; nowel; ...
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Compared with straight ray tracing, inversion of bending ray tracing is better when data of test are accurate. on the other hand, natural weight is introduced and numerical simulations and experiments of wlm on inversion of velocity and attenuation are also made, which show that wlm, with resistance of noises and convergence of iteration, may get good re - construction images
本文引入了物理意義明確的自然權,對基於自然權的加權阻尼最小二乘反演演算法( wlm )在速度反演、衰減反演中進行了數值模擬和試驗研究,結果表明wlm均能獲得良好的重建圖像,迭代收斂,抗噪能力強。The paper has founded the model of laser transmission in launch process and the movement model of laser - powered vehicle, and has analyzed the influence on performance of launch system, which was raised by some factors, for instance, the performance of thruster, the attenuation in transmission, the height of mode - transform, the laser power, the air drag force, the launch height, and so on
本文研究了激光推進微小衛星發射系統的概念和性能。建立了發射過程激光傳輸和激光推進運載器運動模型,分析了推進系統性能、大氣傳輸衰減、模式轉換高度、激光器功率、大氣飛行阻力、發射點高度等因素對發射系統性能的影響。Olive beneficial to the circulatory : can prevent arteriosclerosis and atherosclerosis complications, hypertension, heart disease, heart failure, renal failure, cerebral hemorrhage, thrombosis reduce the probability and improve the digestive functions : it is to reduce gastric acid, discourage gastritis and ulcer disease, and other functions
橄欖油有利促進血液循環: ,能防止動脈硬化以及動脈硬化並發癥、高血壓、心臟病、心力衰竭、腎衰竭、腦出血,減少血栓形成的機率,有利改善消化系統功能:它有減少胃酸、阻止發生胃炎及十二指腸潰瘍等病的功能。Great intermittent noise, wide variety of impendence along with the load and great attenuation of signals have restricted the further utilization of power line
但是,電力線通信通道存在間歇性噪聲大、阻抗隨負載變化大、信號衰減大等缺點,嚴重製約了它的有效利用。It can clear out redundant cholesterol and triglyceride in blood, decrease very low density lipoprotein and enhance high density lipoprotein which is beneficial to human body. this product has effects of activating blood and the channels, tonifying the heart and promoting urination, regulating the flow of qi to alleviate pain, preventing and curing heart failure, and the effects of inducing reuscitation and restoring consciousness. 3
藥理研究:葛根能增加腦及冠狀動脈血流量,使血管阻力相應減低,清除血液中多餘的膽固醇及甘油三脂,降低低密度脂蛋白,同時提高對人體有益的高密度脂蛋白,具有活血通絡,強心利尿,理氣止痛,防止心衰,且具有開竅醒腦之功效。The system can resolve the noise and impedance on the power line and obviously improve the abilities of anti - disturbance and successful rate of communication. at the same time, the software realy method and arithmetic is also introduced to settle the problem of attenuation and increase the distance of carrier communication, it can satisfy the need of remote reading meter system
該系統有效地克服了電力線噪聲和阻抗變化等干擾因素,提高了抗干擾能力和通信成功率,同時提出軟體中繼的思想和演算法並加以實現,進一步抑制了線路衰減快的問題,使載波通信的距離增加,滿足了遠程抄表系統的要求。Sub - c mh - ni power batteries were prepared with excellent electrochemical performance based on the research of the high rate performance at different temperature. the change of temperature, impedance and weight loss was investigated in the process of recycle at high rate. it showed that the discharge time is 5. 9min at 10c and the middle voltage is 1. 05v
三、根據對電池大電流和溫度性能的研究,研製了具有較好電化學性能的動力型鎳氫電池,並分別測試了電池在大電流循環過程中的溫度、內阻、重量和正負極板等的變化情況,以此分析引起電池性能衰減的原因。A system scheme of digital image collection plus spread spectrum communication ( abbreviated as ssc ) is presented in this paper after a full analysis of noise characteristics, attenuating characteristics and impedance characteristics of low - voltage power lines
本文首先介紹了低壓電力線的噪聲特性、衰減特性和阻抗特性,然後提出一種數字圖像採集+擴頻傳輸的系統總體方案。Using the canonical variable representation ( x, p ), the light - damping oscillator is discussed by the corrected time - dependent perturbation methods of dirac, it is turned out that the energy levels have shift and breadth, and the wave function decaying with time exponentially
採用正則變數( x , p )表象討論輕阻尼振子,並對量子力學含時微擾的狄拉克方法加以修改,得出量子能級有位移和寬度,以及波函數出現隨時間指數衰減的行為The mechanism of storing lithium - ions was to store lithium ions in the micropores of the samples. since the micropores which formed in the process of liquid phase carbonization had different sizes, the smaller the micropores, the lower the potential to overcome the resistance for inserting lithium ions. the charging - discharging curves looked like the letter " v " and had no flat plateaus, the charging - discharging capacities were high but faded rapidly
Htt _ ( max ) = 2000以前,石墨微晶尚未出現,貯鋰機制為「微孔貯鋰」 ;由於微孔的大小不同,插鋰時克服阻力所需的電位也不同,微孔愈小,所需電位愈低,因此充、放電曲線為「 v 」字形,無充、放電電位平臺,充、放電容量高,但容量衰減快;隨著htt _ ( max )的增大,液相炭化過程中所形成的微孔逐漸變小、變少,因此充、放電容量也逐漸變小。A lumped parameter model was developed for predicting the transient motion of mirrors, taking into account electrostatic and tensile forces and viscous air damping via squeeze film theory
考慮靜電驅動力、張力和空氣阻尼衰減對變形鏡回復過程的影響,建立一種復合參數模型來預測變形鏡的瞬態行為。The proposed control system includes the attitude controller acting on the rigid hub, designed by using pulse - width pulse - frequency ( pwpf ) modulation integrated with command shaping technique based on csvs method, and the piezoelectric material elements as sensors / actuators bonded on the surface of the beam appendages, designed by the optimal positive position feedback ( oppf ) control technique, in which the selection of ppf gains is determined via introducing a cost function to be minimized by feedback gains which are subject to the stability criterion at the
設計的控制器僅利用輸出信息,從而避免設計撓性模態狀態觀測器以及引入狀態觀測器誤差;在此基礎上,採用分力合成方法設計命令成形控制器來抑制撓性附件的振動,設計的優化命令成形控制信號在理論上可以對系統的各階撓性模態完全抑制。但考慮到模型不確定性和外部擾動,在內迴路又設計了最優正位置反饋( oppf )補償器以增加撓性結構的阻尼,使撓性結構的振動能夠很快衰減。System scheme of speech coding plus spread spectrum communication was presented based on a full analysis of noise characteristic, attenuation characteristic and impedance characteristic of low - voltage power line. spread spectrum carrier ( abbreviated as ssc ) technology is adopted to overcome problems existing in signal transmission over power line. high quality, low rate mbe compression algorithm was used to complete speech encoding and decoding
在對低壓電力線路的噪聲特性、衰減特性和阻抗特性三個方面充分分析的基礎上,本文提出一種語音編碼+擴頻傳輸的系統總體方案,採用擴頻載波( spreadspectrumcarrier ,縮寫為ssc )技術克服電力線傳輸信號存在的問題,採用語音合成質量高並具有較低碼率的mbe壓縮演算法完成語音信號的編解碼。While testing ofeis at different depth of dischargeand charge - discharge at different charge - discharge rate reveale that, these material indicate lower conductivity at highcharge - discharge rate, resulting in bad electrochemical perforemence. melting - cooling and inorganic sol - gel were adopted, which facility - simpleand operating - easy, to prepare v _ 2o _ 5 xeroxes as positive material of li - ion battery. the comparision of structual and electrochemical performance between thesecathode materials were investigated for the first time. their electrochemicalbehaviorswerestudiedbygalvanostaticcharge - discharge, cyclicvoltammetry ( cv ), and electrochemical impedance spectroscopy ( eis ) techniques. the results indicte the sample that prepared by melting - cooling revealed moreexcellent performance at low charge - discharge rate, which achieved a high initialdischarge specific capacity of approximate 320 mah ? g - 1
通過各種充放電測試,循環伏安( cv )曲線以及電化學阻抗譜( eis )等測試手段對材料的電化學性能進行表徵,結果發現,在低倍率放電下,熔融淬冷法合成的材料具有更好的電化學性能, 0 . 1c恆流放電至1 . 8v時首次放電容量達320mah ? g - 1 ,並且發現, v _ 2o _ 5作為正極材料組裝成的鋰離子二次電池,除首次循環具有較大的不可逆容量外,其餘循環可逆且容量保持能力較好, 20次循環后,容量只衰減了6 . 40 % 。Real - time characteristics of data transmission, remarkable transmission, error - detection and automatic retransmission built in can protocol make it a good option for power line carrier communication, which has some obvious drawbacks such as wide - range variant input impedance, interference and signal attenuation
Can協議中數據的實時傳輸、卓越的錯誤檢出及自動重發功能為建立高效的基於電力線載波(電力線介質存在著大范圍變化的輸入阻抗,較強的干擾和信號衰減)的can通信系統提供了方便。In this paper based on the test and simulation of different power networks, the reliability and practicability of carrier communications are discussed and the impedance characteristic, transmission characteristic, the effect of noise on the low - voltage are also analyzed
本文基於對不同電網環境下的載波傳輸情況進行系統綜合測試和模擬的基礎上,針對載波通信的可靠性、實用性進行了探討。分析了低壓電力網的阻抗特性、傳輸衰減特性以及噪聲特性影響。But because of the disadvantages of noise, attenuation and rapid impedance changing, it will greatly affect the reliability of communication
不過由於中壓電力線具有噪聲大、信號衰減快、線路阻抗變化大等不利因素,在很大程度上影響了通信的可靠性。分享友人