次聲學 的英文怎麼說

中文拼音 [cìshēngxué]
次聲學 英文
infrasonics
  • 次 : Ⅰ名詞1 （次序; 等第） order; sequence 2 [書面語] （出外遠行時停留的處所） stopping place on a jou...
  • 學 : Ⅰ動詞1 （學習） study; learn 2 （模仿） imitate; mimic Ⅱ名詞1 （學問） learning; knowledge 2 （學...
  1. " there seems to be something in the air that can harm developing fetuses " beate ritz an epidemiologist who headed the study said in a statement

    領導這項研究的流行病學家beate ritz在一次聲明中說： "空氣中似乎有某種東西會傷害正在發育的胎兒。
  2. But it is not the same with surd or the alternation of sonant and surd. on the base of the acoustics, a whole linear time - varying discrete speech produce model is established through anatomising the factors including track, driving source and lip eradiation the mechanism of speech in this paper, and we draw a conclusion that the time between glottal closure is pitch period

    本文從聲學理論出發，剖析了語音產生的機理，綜合考慮聲道、激勵源和嘴唇輻射三方面的因素，建立了一個完整的、線性的和時變的語音產生的離散系統模型，得出兩次聲門閉合事件之間的時間間隔就是基音周期的結論。
  3. Effects of infrasound on biological characteristics of osteoblast - like cells

    次聲波對成骨樣細胞生物學特性的影響
  4. Being inaudible and with a mechanism of bio - resonance, infrasound has a brilliant perspective when applied to biomedicine

    次聲的作用機理是生物共振，次聲應用於生物醫學，前景將會十分廣闊。
  5. Atmospheric acoustics is the study of propagation of sound waves in the atmosphere. listed in it is the study of infra - sonics, which focuses on inaudible, low - frequency sounds

    研究聲音在大氣中傳播特性的科學稱為大氣聲學，當中的次聲學便是專注於人耳無法聽到的低頻聲音。
  6. Know the various hazardous weather systems by their infra - sonic properties will help understand their behaviour and make better forecast. this has recently become an important topic in the study of infra - sonics

    認識並利用次聲方法來預測各類危險天氣的活動規律，成為近代次聲學研究的重要課題。
  7. In this paper, the main research works are as follows : 1 ) survey and analysis previous work in auv navigation and summarize : as the cumulate error, the dead - reckoning and inertial navigation systems ca n ' t be used without other modified system ; the acoustic navigation system is used only in small range, and is very expensive. 2 ) two important approaches in geophysical navigation techniques are summarized, one is terrain contour based navigation, this approach is investigated keystone today ; the other is image based navigation, due to no perfect image sensors and image seabed map, this approach has seldom been practised. 3 ) two important terrain contour based navigation algorithms has been applied to auv, one is match algorithm - based terrain contour match ( tercom ) ; the other is kalman filter - based sandia inertia terrain - aided navigation ( sitan )

    主要研究內容包括：一、總結分析了當前水下導航的常用方法和不足之處，指出基於航位推算的導航方法，存在著最大的問題就是導航誤差的積累問題，如果沒有修正系統，這種方法很難滿足使用要求；其次指出基於聲學的導航方法，造價昂貴，導航范圍有限，難以滿足自主水下航行器大范圍導航的需求；二、總結了當前水下地形輔助導航的主要技術路線，一是基於地形高程的匹配方法，這是當前研究的重點；二是基於地形圖像的匹配方法，由於缺乏良好的圖像傳感器，和可用的海底圖像地圖，目前這種方法還有待研究發展；三、將兩種地形高程匹配的常用方法應用到自主水下航行器上：以相關演算法為前提的地形輪廓匹配（ tercom ）方法和以卡爾曼濾波為基礎的桑迪亞慣性地形輔助導航（ sitan ）方法，前者演算法簡單可靠，但是導航精度不高，後者雖然精度比較高，但存在著演算法較為復雜、有可能發散和出現奇異值等問題。
  8. Because the north downtown is the old city in municipal area, kits population is intensive and the business in train station, long distance bus station is comparative concentrates. concentrating, the poprlation flows a great deal, so the mission of medical treatment, prevention, health care for this area is heavy. through several generation s effort, the hygiene business of my area from have no to have, go to since the childhood to big, obtained the substantial development, tooctober 1999, my area totally contain 192 all levels vrious medical treatment hygiene organzation, among them the first province class is the sixth people s hospital ; troops hospital is namely 252 hospital ; municipal class hospital 8, namely the first hospital, the first center hospital, the third hospital, north downtiwn hygiene defends the station, the north downtown women and children health care staton ; three countries hosptal namely hanzhuang country hospital, dongjin country hosspital, bailou country hospital ; still there are 56 villages public health offices, 70 individual clinics, 50 business enterprises business unit hygiene room in addition, an a scale as center from the city, regarding village as the key point, under the new form of the socialism economcal market, our hygiene system insists on the material civilization grasp with spiritual civilization together, putting the social efficient in the first, hold " everything regard health as the center, working hard to mold " window image, the municipal fifth hospital is named as baoding civilized committee, baoding hygiene office as the two star class civilized service. my area all hygiene worker will still work hard to create superior quality service ofor the large crowd

    經過幾代人的努力，我區的衛生事業從無到有，從小到大，取得了長足的發展，至1999年10月，我區內共有各級各類醫療衛生機構192個，其中省級一家即河北省第六人民醫院軍隊醫院一家即二五二醫院市級醫院8家即保定市第一醫院保定市第一中心醫院保定市第三醫院保定急救中心保定市法醫醫院保定市聲學研究所保定市衛生防疫站區直屬單位三家即保定市第五醫院北市區衛生防疫站北市區婦幼保健站三個鄉醫院即韓莊鄉醫院東金莊鄉醫院百樓鄉醫院;此外還有56個村衛生所70戶個體診所50個企業事業單位衛生室。一個從城市為中心，以農村為重點，集醫療預防保健康復科研和公共衛生監督等多功能多層次並基本滿足社會需求的衛生工作網路初具規模。在大力發展社會主義市場經濟的新形式下，我區衛生系統始終堅持物質文明和精神文明一起抓，始終把社會效益放在第一位，緊緊圍繞「一切以健康為中心，努力塑造」窗口形象，市第五醫院被保定市文明委保定市衛生局命名為文明服務二星級單位。
  9. The saint porch ( acoustics ) decorates the company according to the market the demand basis general owners ' request, in order to increases the high grade for the family repair, therefore the saint porch company grandly promotes ( acoustics adds repair ) the idea in 2007, and first promotes the application in the national capital, passes through ten plots different levels owner ' s experiment, satisfaction rate reaches above 99 %, and receives owner ' s high praise

    聖軒（聲學）裝飾公司根據市場的需求根據廣大業主的要求，為了給家庭裝修增加高品位，所以在二零零七年聖軒公司隆重推出（聲學加裝修）的理念，並在京城首先推廣應用，經過十個小區不同層次業主的試驗，滿意率達99 %以上，並且受到業主的好評。
  10. Left atrial spontaneous echo contrast evaluated by thi

    二次諧波顯像評價左心房自發性聲學顯影
  11. It was because of the detection network that scientists found out that the nature is full of infra - sounds

    因為有了這些探測網，科學家們得以發現大量自然現象都會產生不同特性的次聲。
  12. Secondly, by means of the measurement of the vibration and associated noise, the area in the presence of the friction - induced noise is determined accurately. as a result, a comparative analysis on the topography of the scar surfaces with and without noise is performed in detail

    其次，利用動力學和聲學測量技術確定了摩擦噪聲所發生的區域，在此基礎上對磨痕上表面形貌進行了詳細的對比分析，發現有噪聲區域的形貌明顯不同於沒有噪聲區域的形貌。
  13. A data acquisition and analysis system of insect acoustic signal ( daasias ) with friendly interface, simple operation and multifunction was developed. it could sample and analyze insect acoustic signals in real time. by daasias both observing insect behavior and analyzing signal could be conducted at the same time

    以往昆蟲鳴聲信號是記錄在磁帶上，分析時通過回放磁帶的錄音，在示波器、頻譜儀或聲譜儀等聲學儀器上進行信號分析，結果磁帶的多次回放常會引起信號的失真，並難以對信號作進一步的編輯處理；分析儀器不但價格昂貴、體積較大，而且很難實現昆蟲聲行為觀察與信號分析同步，更不適合野外工作。
  14. The course, then, is not a grammar class nor a thesis editing service though we will spend considerable time developing student ' s editorial skills

    即使我們會花費相當的時間指導學生編輯上的技巧，但再次聲明這不是文法課、也不是校定論點的課。
  15. Based on apdl, the design language of finite element analysis software ansys, and visual c + +, the software on acoustics design of underwater cylindrical shell structure is developed. when input parameter of the cylindrical shell in the interface redeveloped in this paper, the software execute the batch file of apdl in the vc process to establish the finite element modal and carry out the analysis, the analysis result and the vibration mode can also be displayed. furthermore, the software has been developed to process the acoustics optimization design of the finite cylindrical shell with stiffener in appointed frequency range

    本論文從便於工程實際應用出發，對使用有限元分析軟體進行二次開發以方便結構振動分析及改進結構設計的方法和過程進行了研究，在此基礎上對水下航行器圓柱殼體的結構聲學特性進行了分析，在指定頻率區間，對結構以振動輻射聲功率級為目標函數進行了部分參數的結構優化設計，與此同時，為了方便有限元分析軟體的使用和簡化設計過程中大量重復的工作，利用ansys提供的參數化設計語言apdl （ ansysparametricdesignlanguage ）結合vc對有限元軟體ansys進行了二次開發，形成了一體化的水下圓柱殼體結構聲學設計軟體。
  16. The impact on the muffler performance is realized by the high - speed pulsation gas flow, which regenerates noises and strikes the acoustic elements of the muffler such as the pipe run, the body case and the separator plate to arouse the vibration radiated noise

    氣流影響消聲器性能的主要原因是發動機排氣的高速脈動氣流再生噪聲，其次是這種氣流會沖擊消聲器的管路、殼體、隔板等聲學元件，進而激發振動輻射噪聲。
  17. What is clear from the stanford team ' s earlier work with trained african elephants is that under ideal conditions, elephant infrasound calls can make seismic waves that can travel almost a mile and a half ( two kilometers )

    在通過馴服的非洲象進行的較早的研究中，斯坦福大學研究小組已清楚：理想條件下，大象的次聲吼叫能使震波傳播兩公里左右。
  18. At last, the encoding hardware structure of mpeg - 1 layer ii is put forward. second, in the paper, we have analyzed every module of the structure and estimated it ' s complexity. then the sub - band filter bank and psycho - acoustic modules are more investigated

    其次，分析了硬體結構中各個模塊並估計了它們的運算復雜性，然後對子帶濾波器組和心理聲學模型作了進一步的探討，提出了基於fft的高效實現演算法及其硬體結構。
  19. About a hundred years before brahmagupta, another astronomer, varahamihira had claimed for the first time perhaps that there should be a force which might be keeping bodies stuck to the earth, and also keeping heavenly bodies in their determined places

    大約早於婆羅門加塔一百年，另一位天文學家瓦拉哈米希拉首次聲稱很可能有一種力量使得物體掉到地面，也使得天體在它們的固定位置上。
  20. Therefore, it is imperative to correct the misunderstanding of mcluhan ' s theories nowadays. the sixties of last century was mcluhan ' s age, he was well known all over the world. then, his academic reputation was becoming vicissitudinous

    他在60年代獲得巨大聲譽，隨后又沉寂二十年，在90年代中期，重新得到學術界的矚目，這兩次聲名顯赫都有深刻的歷史原因和社會背景。
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