根半徑 的英文怎麼說

中文拼音 [gēnbànjìng]
根半徑 英文
root radius
  • 根 : Ⅰ名詞1 （植物的營養器官） root （of a plant） 2 （比喻子孫後代） descendants; posterity 3 [數學] ...
  • 半 : Ⅰ數詞1 （二分之一） half 2 （在 中間的） in the middle; halfway 3 （比喻很少） very little; the l...
  • 徑 : Ⅰ名詞1 （狹窄的道路; 小路） footpath; path; track 2 （達到目的的方法） way; means 3 （直徑的簡稱...
  1. For example, if there is a planet orbiting around the neutron star, it will wobble a little and the pulses will come a little early or late. we can then deduce the mass and the radius of the orbit of the planet from the arrival time of the pulses. this is how the first extrasolar planet is discovered

    例如假若有一顆行星圍繞一顆中子星運行，它會令中子星出現搖動，引致脈沖的間隔變長或短，由此我們根據脈沖周期的變化，可推斷出行星的質量和軌道半徑，這亦是天文學家找出第一顆地外行星時所用的方法。
  2. Bohr radius was the radius of the circle in which the electron moved in the ground state of the hydrogen atom, according to the bohr theory.

    根據玻爾理論，玻爾半徑是在基態氫原子中電子運動的圓周半徑。
  3. Methods ： fifty paired embalmed cadaveric humeri ( twenty - five pairs : fourteen from male donors and eleven from female donors ) were scanned in medial - lateral ( ml ) and anterior - posterior ( ap ) position according to the humeral retroversion by ct. images of the humeri in the transverse planes at the lowest border of neck ( lbn ), 20mm and 40mm distal of lbn ( lbn - 20 、 lbn - 40 ), isthmus, head - neck anterior - posterior ( hn - ap ) were obtained. sixty - one extracortical and intracortical parameters were measured exactly by image analytic computer software that included offset, head position, head - shaft angle, head to tuberosity height ( ht ), head thickness, curvature radius, articular surface arc ( sa ), neck diameter, isthmus position, proximal and distal border of isthmus, maximum coronal and sagittal diameter of medullary canal and thickness of cortical bone in four planes, including lbn, lbn - 20, lbn - 40 and isthmus

    方法： 50根成對防腐肱骨（男14對，女11對）按肱骨頭扭轉角置於冠狀位和矢狀位，行肱骨全長，頭頸矢狀面，解剖頸下緣及其下20mm 、 40mm ，髓腔狹窄部四平面ct掃描，由ct軟體測量冠、矢狀位髓腔內外參數共61項，包括頭心?干軸距，頭位置，頭干角，頭?結節高度差，頭厚度，頭半徑，關節面張角，解剖頸直徑，髓腔狹窄部位置，解剖頸下緣及其下20mm 、 40mm和狹窄部四個平面髓腔的最大冠、矢狀徑，皮質骨厚度等。
  4. Abstract : the author provides a method for solution of hydraulic tortuosity factor with gas permeability in cores according to the definition of hydraulic tortuosity factor and relations between pore radius porosity and permeability in porous media and give examples of some applications in reservoir experimental studies

    文摘:根據水力學迂曲度因子的定義以及迂曲度因子與多孔介質中孔隙半徑、孔隙度、滲透率的關系，提出了一種利用氣測巖心滲透率求取巖心水利學迂曲度因子的方法，並例舉了其在油藏實驗研究中的幾種應用情況。
  5. According to the moving characteristics of tracklayer, when the vehicle is on ramp and the ground ' s vertical pressure is linear, the calculating formulas of relationship between the deviation of the instantaneous steering center, the position of vehicle ' s gravity, steering radius, moving velocity, moving acceleration, and vehicle ' s orientation, were obtained by the theory and method of vector analysis in mathematics and mechanics

    摘要根據履帶式車輛的運動特點，運用數力學中矢量分析理論和方法，推導了接地比壓為線性分佈時履帶式車輛在斜坡上轉向時，瞬時轉向中心偏移量與車輛重心位置、轉向半徑、行進速度、加速度、車輛方位相互關系的計算公式。
  6. This specific view becomes the tip of our designing ; the energy consumption has great relation with the rf module, which is breakpoint of the ebra ( energy - based radius self - adjust wireless sensor network protocol ). based on the facts between the energy consuming and the rf transferring radius, the ebra protocol is designed and implemented under the visual c + + 6. 0 ide, which switches its running mode with the energy consuming of nodes, so that meet the goal of energy saving of the nodes in wsn

    本文正是從這一視角入手，根據結點能量消耗與無線傳輸發射半徑間的關系，設計並實現了一種基於能量的半徑自適應傳感器網路路由協議，使得節點能夠根據自身剩餘能量的狀況對節點的運行模式進行控制，同時對無線模塊的收發半徑進行動態調整，達到節能目的。
  7. After confirming the number of bs, we set the number of voice channels and the number of cells according to the relation between capacity and coverage area " radius of the cdma cell with a certain i / c value

    在確定基站的數量后，在一定的干載比時，根據小區容量和小區覆蓋半徑之間的關系確定每個小區所能支持的話音通道數和小區的半徑。
  8. With the new - simple method, the equation of circle - arc - enveloping curve are deduced. also the relationship between the arc radius, the radius of center distribution and the distance of centers is given to avoid undercutting

    文中採用新方法推導出了圓弧包絡線轉子型線方程，還給出了避免出現根切現象的圓弧半徑、圓弧圓心分佈圓半徑以及中心距三者之間的關系。
  9. According to the guidline, two nd : yag lasers have been designed and set up, one is end - pumped by lower output power ld using a selfoc micro lens, and the other is end - pumped by high output power ld using a pair of lenses are designed, and the characteristics such as output power and power stabilization of both solid - state lasers are investigated. thirdly, when an empty liquid crystal cell is inserted in the cavity of the nd : yag laser pumped by high power ld, the laser can operates in single axial mode. finally, according to the relationship between the laser output power and the longnitudinal a ld - end - pumped nd : yag laser sensor for displacement measurement has been investigated theoretically and demonstrated experimently, the results indicate that when the mean radius of pumping inside the laser cavity is far less than that of the oscilating laser mode, the exponential of the output power is a gauss function of the longitudinal positon of focused spot of ld pumping beam, both the measurement range and the sensitivity are dependent on the incident pumping power, as the incident pumping power is increased, the measurement range is enlarged and the sensitivity is improve d

    本文首先介紹了ld泵浦nd ： yag激光器的發展狀況、主要特性及其應用，從四能級速率方程出發，推導了ld泵浦nd ： yag激光器的閾值、輸出功率和斜效率的表達式，並簡述了激光器的工作原理、結構型式和倍頻方法；其次，以空間相關的速率方程為基礎，提出了ld端面泵浦nd ： yag激光器的設計方法，給出了一定泵浦耦合方式下，振蕩光模尺寸、最佳輸出耦合率、泵浦光模尺寸、泵浦光焦斑位置等參數的選取依據，以此為依據，設計了自聚焦透鏡耦合小功率ld泵浦nd ： yag激光器和透鏡組耦合高功率ld泵浦nd ： yag激光器，對激光器的輸出功率和功率穩定性等特性進行了實驗研究；再次，在帶尾纖輸出的高功率ld泵浦nd ： yag激光腔內插入一隻空液晶盒，觀察到了激光器以單縱模運轉；最後，根據泵浦光焦斑端面位置對激光輸出功率的影響規律，提出了ld端面泵浦nd ： yag激光位移傳感新方法，並進行了理論和實驗研究，研究結果表明：當激光晶體內泵浦光平均光斑半徑遠小於振西安理工大學碩士學位論文蕩光束腰半徑時，激光輸出功率的自然指數與泵浦光焦斑的縱向位置成高斯變化規律，測量范圍和靈敏度依賴于泵浦功率，隨著泵浦功率的增加，測量范圍擴大，靈敏度提高，當端面泵浦功率為7 . 24w （最大輸出功率為1 . 926w ）時，激光位移傳感器的測量范圍和靈敏度分別是13 . 045mm和0 . 148mw / pm 。
  10. Test results indicated : with the hoist of altitude, the increase of ice amount and the rise of pollutant, the average flashover voltage reduced. the character exponent generally depends on the insulator profile, ice amount, ice state and pollution severity etc. by means of a high - speed camera, a data acquisition system and high voltage test facilities, a series of the flashover processes on ice surfaces were record. the experimental results form this study and the subsequent theoretical analyses suggested : the thermal ionization of the air in front of an arc root resulted in arc movement ; the electrostatic force had an auxiliary effect of impelling arc propagation ; the electrical

    通過對攝像機、數據採集系統及高壓試驗裝置記錄覆冰絕緣子表面閃絡電弧的發展過程的試驗結果進行理論分析得出：弧根周圍空氣的熱電離導致了電弧的發展，靜電場力對電弧的發展起到了加速作用，電擊穿僅發生在閃絡最終的跳躍階段；通過測量閃絡過程中的放電電壓、泄漏電流、閃絡時間、覆冰水電導率、電弧長度及電弧半徑等參數，得到了不同階段電弧（電弧起弧階段、電弧發展階段及完全閃絡）的發展速度、臨界電弧長度均隨覆冰水電導率的增加而減小。
  11. In the new dryer, the air guiding device with an orderly increased air guiding radius was introduced to improve the uniformity of airflow distributed in bed ; a three - blade device was installed to get a good pulse - fluidizing effect ; an vibrating device and a conducting device were additionally set up to make materials flow fluent and to overcome " reverse flow " respectively

    它採用導流半徑依次增大的導流裝置，改善了氣流在床層內分配的均勻性；採用三葉片式脈動裝置，改善了脈動效果；增設了振動裝置，使物料輸送流暢；增設了導料裝置，從根本上解決了物料的「反流」問題。
  12. Sphere orientation is to make out the 3 - d coordinate of the ii sphere center and the sphere radius

    球體定位就是根據球的圖像求出球心的三維坐標以及半徑。
  13. On the basis of computer simulation, the relationship among plasma channel, plasma configuration and the final crater are clarified

    根據計算機模擬實驗，得出了短、長脈沖加工時瞬時放電通道半徑、放電通道位形半徑以及最終放電痕半徑三者之間的關系。
  14. In connection with the difference and distribution characteristic of the samples in sample space rs based on dga, a new self - adapted weight fuzzy omean clustering model of fault diagnosis of the power transformer based on the potential function is proposed. meanwhile, from the aspect of geometry characteristic of fc - divided in s dimension sample space, a method is proposed for the purpose of getting an effective adjacent radius, adaptive cluster number c and original cluster center of x sample set. for the diagnosis sample x, the property measure and diagnosis rule are proposed, which under the condition of potential density function that determine c number of optimal fuzzy cluster p1

    根據以變壓器dga數據為特徵量的樣本空間各樣本差異特性以及樣本在空間r ~ s的分佈特性，首次提出了基於勢函數自適應加權的變壓器絕緣故障診斷的模糊c -均值聚類模型；同時，從s維樣本空間的f ~ c -劃分幾何特性出發，提出了一種求取樣本集的類勢有效鄰域半徑和自適應求取聚類數和聚類中心初值的方法；對一個待診斷樣本，設計了基於類勢密度函數意義下的屬性測度和診斷準則。
  15. We calculated the surface subsidence, horizontal displacement, incline, and current curvature using the groundwater drawdown, conical depression influence radius of water cone and ground property

    根據地下水降深、降落漏斗影響半徑、巖土工程地質性質，計算降水引發的地表沉降值、水平移動、傾斜、曲率現狀值。
  16. The effect of the corner radius on root stress of involute gear

    刀尖圓弧半徑對漸開線齒輪齒根應力的影響
  17. Based on geometry alignment data and speed difference, by stat. formula are established about the relation between downgrade, curve radius and deflection and speed change. then method to establish speed characteristic curve is present

    依據樣本路段的幾何線形數據和速度變化特徵，利用統計手段得出了縱坡坡度、平曲線半徑和偏角等線形指標與速度變化之間的關系公式，根據這些公式，給出了一定線形組合求解速度特徵曲線的方法。
  18. In this paper the ground state structure of the four - hypemucluei ^ he > " be * be and a c are studied by applying a5 / fe structure model and few - body theory method and compared with the results of the shell model and the a cluster model from the ground binding energy and r. m. s distances

    我們用a ， he結構模型和少體理論方法從基態結合能和集團間的方均根半徑出發研究了aa6he 、 a9be 、 a ? be和? c這四個超核的基態結構，並與文獻中用殼模型和集團模型的計算結果作了比較。
  19. With the retrospection of the developing course of the bored pile foundation and combining with my practical experience, the paper expatiates upon the design principle of percent of fit of the stone - fill grouted concrete and the main factors of the influence strength target, and the final pile technique introduction of the hollow pile of the stone - fill grouted concrete and the precast prestressed concrete ; baesd on the theory of slurry hydraulics, empirical calculation formulas of the radis and height of diffuse slurry are deduced in this paper ; it analyzes the test pile materials of the hollow pile foundation, such as luoyang yi river bridge and dangwang jian river bridge ; the new technique of the hollow pile, which provides the generalization and application with base materials, expounds its feasibilities, adaptabilities and economy

    本文通過綜合分析國內外鉆孔樁基礎的發展歷程及研究現狀，重點討論了填石壓漿混凝土空心樁、預制預應力混凝土空心樁的成樁工藝、填石壓漿混凝土的配合比設計原理及影響強度指標的主要因素；根據泥漿水力學原理，導得了考慮各種因素的水泥漿液在預填骨料中的流動影響半徑和上升高度；結合河南省洛陽伊河大橋、黨灣澗河大橋工程實踐，討論了填石壓漿混凝土空心樁基礎的質量檢測方法及標準；並在此基礎上，深入分析了樁側、樁端承載能力，提出了填石壓漿混凝土空心樁的設計計算理論和方法。最後，論證了空心樁新工藝的可行性、適應性、經濟性，為大力推廣應用空心樁新技術提供了可靠的技術資料。
  20. The result shows that the halo intensity factor becomes zero after it is controlled, other statistical physical quantities, such as r ( subscript ms ) and p ^ 2 and related average emittances are obviously reduced

    結果表明，加控制后束暈強度因子變為零，束均方根半徑、束橫向動量平方和的平均值和束橫向平均發射度比控制前都明顯減小。
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