ratio curve 中文意思是什麼

ratio curve 解釋
比值曲值
  • ratio : n. (pl. ratios)1. 比,比率,比值;比例;系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達;求出…的比值;使…成比例。2. 將(相片)按比例放大或縮小。
  • curve : n 1 曲線;彎曲;彎曲物。2 曲線規 (=French curve);【機械工程】曲線板;【棒球】曲線球;【統計學...
  1. And understanding and studying the spectral features and variation rules of geo - targets in the experimental area, raising that it is the basis of geo - targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo - targets, realizing that in a great extent spectral - integrated - form - based classification method can remove the phenomenon of " different spectrum with same objects " resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo - target with similar spectral forms and much different values of whole reflection ratio. it is suggested that " red edge " range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel - based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. the remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed

    研究結果如下:首先針對荒漠化地區的地物特徵,對高光譜數據不同波段的數據質量、波段組合進行了評價,提出了適用於荒漠化監測的基本波段選擇集;初步了解和掌握了研究地區的地物光譜特性及變異規律,進一步明確了掌握地物光譜特徵和變異規律是用成像光譜儀數據提取地物信息的基礎;發現了基於光譜整體形狀的分類方法在很大程度上能夠消除由於傳感器、地物目標觀測方向之間的角度變化引起的反射率曲線整體平移的「同物異譜」現象,對于譜形相似而整體反射率的值相差較大的兩類地物,通過引入均值和方差圖像參與分類得到解決;研究還表明在植被「紅邊」范圍內的波段是進行荒漠化監測的主要特徵波段,這些波段與植被生物量和蓋度都有密切的關系,是開展精細植被分類研究和植被定量反演的重要基礎;像元的導數光譜分析可以消除土壤背景的影響,是進行植被生物量和蓋度定量反演的有力工具;建立了荒漠化監測主要評價因子的定量反演模型,並分析了模型的適用性。
  2. Without considering other aspects, carbon nanotubes with the same aspect ratio have entirely uniform trend in charge density relative distribution curve

    在忽略其他條件影響下,長徑比相同的碳納米管,電荷密度相對分佈曲線趨勢完全相同。
  3. The results showed that the torque ratio and efficiency curve are almost not affected by width ratio, whereas the torque capacity performance changes especially when the speed ratio is less than 0. 6

    結果表明,隨寬度比減小變矩比和效率基本不受影響,而透穿性則由正透穿逐漸變為混合透穿,在速比大於0 . 6時傳動性能基本沒有差異。
  4. We collect distributing of near - field of optical switch output - port. using gaussian curve fit, we measure the extinction ratio of " bar channel " is 8db, and the extinction ratio of " cross channel " is more than 18db

    利用紅外攝像機採集的光開關輸出的近場分佈,採用對場光場能量高斯擬合的近似方法,測得該關注入光開關的直通端的消光比可以達到8db ,而反射端的消光比則至少可以達到18db以上。
  5. Mz, a, sk, kg and sc / d ( ratio of the sum of silt and clay to sand ) of fluvio - lacustrine, palaeosols and aeolian sands constitute an interlocking, multi - fluctuation process curve with peak and valle y values : the < & value of mz, o and sk values often increase accordingly from aeolian sands to its overlying fluvio - lacustrine facies or / and palaesols, the kg value heightens, too, and the sc / d value also basically consists with its change steps

    河湖相和古土壤與風成砂的mz 、 、 sk 、 kg以及sc d (粉砂粘土之和與砂的比值)構成一峰谷交替、犬牙交錯的鋸齒狀多波動過程線:常常是由風成砂至上覆河湖相或和古土壤, mz的值、 、 sk值相應增大, kg相應增高, sc d值亦與之變化步驟基本一致。
  6. Based on the experiment results, the damage form of abnormal exterior joint are summarized, characteristics of hysteresis curve are studied, the effect of stirrup ratio and height of column section and beam section on anti - shear property of abnormal joint are discussed, working mechanism of abnormal exterior joint is researched, the conclusion that the anti - crack and bearing capacity of abnormal joint are studied by analyzing the minor core of abnormal exterior joint is proposed, the basic data is provided for the design formula of abnormal joints

    根據試驗結果,總結了異型邊節點的破壞形態,研究了節點滯回曲線的特徵,討論了節點核芯配箍率、樑柱截面高度變化對異型邊節點抗剪性能的影響,分析了異型邊節點的受力機理,提出應以「小核芯」為分析單元來研究此類節點抗裂和承載力的建議,為異型節點設計公式的建立提供了基礎數據。
  7. Based on tests of nine 1 / 2 - scaled model slabs under vertical loads, the paper analyzed load - deformation curve and proposed limit value of height - width ratio under axial loads. 2. based on aseismic tests, the paper put forward a model of concrete frame, silica brick and a combination of the two, proposed that the silica brick works as a 45 compression bar, analyzed the factors which may influence bearing capacity of the slab and advised a formula including the numbers of bays and of storeys of the frame

    通過對墻板模型的抗震性能試驗研究,建立了由鋼筋混凝土框格、砌塊以及兩者協同作用三個部分組成的承載力極限狀態下的理論簡化計算模型;提出了墻板中填充塊等效斜壓桿寬度按45度計算的統一量化標準;分析了影響墻板承載力的主要影響因素,給出了表達墻板框格層數和跨數不同的斜截面承載力實用設計計算公式。
  8. The study on hpec mortar shows that restricted expansive ratio ( e2 ) increases in the curve of parabola with the increase of the dosage of calcium sulphoaluminate ( csa ) expansive agent. so there is a suitable range of csa dosage ( generally 6 % - 12 % ). in this range, e2 of hpec mortar can reach as high as ( 5 - 10 ) 10 ~ 4, and the strength is not decreased

    對hpec砂漿的研究表明,限制膨脹率隨膨脹劑csa摻量的增加呈拋物線形式遞增,存在一個合適的csa摻量范圍(一般為6 - 12 ) ,在該范圍內hpec砂漿限制膨脹率可高達5萬- 10萬,且保證強度不下降,這就為設計不同膨脹能級膨脹混凝土而又保證混凝土強度等級提供了空間。
  9. Abstract : this paper has deduced a new method for risering , ? parametric method. it has proved with the test curve of the british castin g p ractice commission. practical results have well perfected furt her the perimetrischen quotlent method for risering. a conclusion is drawn that rise r supplement shrink efficiency is directly proportion to the ratio of casting to riser perimetrischen quotient

    文摘:提出的冒口設計新方法?參數法,與英國鑄造實踐委員會給出的實驗曲線相互印證其實用性,進一步完善了冒口設計的周界商法;得出了冒口補縮效率與鑄件和冒口的周界商比值成正比的結論。
  10. With the numerical solution, an internal condensation critical curve can be calculated out by condensation theory and depositing theory, on the curve, the enter water ability equal to the out water ability, which can be used as the basis to determine the occurrence of internal condensation. but the result doesn ’ t coincide with the real completely. in this dissertation, we plan to get the critical curve by practical experiment results, because that the enter water ability only relates to the condensation density and the out water ability only relate to the volume ratio of the pneumatics system

    然而由凝結理論和沉積理論得到的計算結果往往與實際有一定偏差,本課題希望通過實驗的方法獲得內部結露臨界線,即系統進水能力和排水能力相等的曲線,由於系統的進水能力和充放氣過程中凝結水滴密度有關,排水能力和系統容積比有關,可以通過大量實驗總結出以凝結水滴密度和容積比表示的內部結露臨界曲線,作為判別內部結露是否發生的依據。
  11. According to pump performance curve shown we can get that the distance h is changed with the rotate speed n in the same point q, and the flux q is changed with the rotate speed n in the same point h. from the curve we can get the rule that the distance and rotate speed are in direct with ratio at the same flux point, and the rotate speed and the flux are also in direct with ratio at the same distance point

    根據相似定律:流量與轉速的一次方成正比;揚程與轉速的二次方成正比;功率與轉速的三次方成正比。即在降低轉速,調低水泵出水揚程的同時,功率下降的幅度非常大,從中可以節省相當大的電能。完全應在高水位時降低水泵機組轉速,從而使電機的輸出功率隨著轉速下降值與轉速原值商的三次方關系下降。
  12. Established the system of coordinates of roll testing, getting the parameters of equation of tooth face by solving the non - linear equations set ; according to the differential geometry and meshing principle, deduce the curvature parameters of tooth face and tooth profile, and get the parameters of instantaneous contact ellipse. emulate the contact trace and contact area of the working tooth face, and drawing the instantaneous drive ratio error curve

    建立了克林貝格擺線齒錐齒輪嚙合分析的對滾模型,通過對非線性方程組的迭代求解,得到齒面方程的各個參數;由微分幾何和切齒嚙合原理推導了齒面上齒廓和齒線方向的曲率參數,得到了瞬時接觸橢圓的參數。根據設計參數和機床調整參數繪制了工作齒面的接觸軌跡和接觸區圖形,並求得了瞬時傳動比的誤差曲線。
  13. Ratio control of cvt is the key for engine running according to ideal curve, and controlling thrust of driving and driven pulley reasonably can improve efficiency and extend life - span of metal belt, and it is coupling relation between control of ratio and thrust

    無級變速傳動系統的速比控制是實現發動機按理想工作線運行的關鍵,合理控制主、從動帶輪的夾緊力能提高傳動效率和金屬帶的壽命,而夾緊力和速比控制存在耦合效應。
  14. The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film

    試驗結果表明:所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求;聚四氟乙烯樹脂熱分解溫度超過400 ,但在ptfe中加入無機填料會使復合材料吸水率提高,熔融溫度及分解溫度降低,且伴有氧化分解反應;碳纖維表面含有c = o及c - o - c等極性基團,有利於提高其與其它組分的相容性,提高層間剪切強度;均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系,擬合曲線基本能表示各配方的摩擦系數發展趨勢;配方中不加銅粉或不加石墨,其摩擦系數均較高,說明銅粉和石墨應該配合使用;當銅粉15份、石墨60份時,銅粉30份、石墨30 - 40份時,銅粉60 、石墨15 - 30份時,摩擦系數均具有較低值;純聚四氟乙烯樹脂在空氣冷卻時結晶度最大,磨損量也是三者中最大的;同時,固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的:不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副,在金屬表面均可形成潤滑轉移膜,從而減少金屬摩擦副表面間的直接接觸,大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。
  15. This paper analyses and studies the design method of optical divide ratio of two way optical distributor in star optical fiber transport network, reaches a simple method to design optical divide ratio of two optical distributor : tabulated solution method and graph method, and then analyses and summarizes the characteristic and law of function curve, the five - point conclusion are presented finally

    摘要對星形光纖傳輸網路中的光二分路器分光比的設計作了分析和研究,得到一種設計光二分路器分光比的簡便方法查表法和曲線圖解法,並對相關函數關系及其曲線特徵與規律作了分析,得出了5條結論。
  16. The results indicate that the ratio of span to rise, the ratio of reinforcement and the stretching controlling stress are the three primary influencing factors to the failure pattern of the slab. in addition, the relationships between the ratio of deflection to span and the ratio of span to rise and the stretching controlling stress submit to linear curves, the relationship between the ratio of deflection to span and the ratio of reinforcement submits to a quadratic parabola curve

    運用數值分析程序計算了175組不同跨高比、配筋率、張拉控制應力的中強( 1270mpa )螺旋肋鋼絲預應力空心板,結果表明跨高比、配筋率、張拉控制應力是影響空心板破壞形態的主要因素,且構件撓跨比與跨高比和張拉控制應力呈線性關系,與配筋率呈二次拋物線關系。
  17. Considering the similitude law for shaking table test, we study the test results and obtain some conclusions which are a ) generally, the silty soil in test box liquefies and the liquefied time has relation with the amplitude of acceleration, b ) when the intensity is on and above eight degree, the silty soil deposit will be liquefied dramatically, c ) the relationship of the pore water pressure is relevant to the cycle loading which represents when the cycle loading ranges from little to great, the relationship is represent as a concave curve, or else as a protruding curve and tends to stability. ( 3 ) based on the triaxial compression test and the resonant column test, some studies are made such as a ) the duncan - chang parameters of constitutive model, b ) the dynamic shear modulus ratio and c ) the damping ratio of the site soil deposits. in order to deal with the test data, a computer program is compiled

    ( 2 )利用小型振動臺進行了k _ 0固結狀態下粉土的振動液化模擬研究,通過分析正弦荷載作用下的試驗資料,驗證了粉土的孔隙水壓力增長模式的合理性;從微分方程推導了基於土體振動臺模型試驗的相似律,並從模型實體、孔壓時程曲線和相似律等方面做出了分析,得出了如下結論:在小型振動臺試驗中,模型箱中的粉土都發生了液化,液化的時刻和輸入加速度幅值有關,而對頻率的變化不太敏感;粉土在相當於8 9度地震烈度的加速度幅值作用下可能產生嚴重的液化;孔壓的增長曲線形狀與施加的荷載有關:當施加荷載為由小到大的形式時,曲線形狀為上凹的曲線;當施加荷載為等幅的正弦荷載或荷載幅值由大到小時,曲線形狀為上凸的曲線,且逐漸趨于穩定。
  18. With the very low water to cement ratio, rpc has ultra - high strength high ductility and low permeability. in this paper, the compressive strength of rpc can reach to a high point with the number approximately 135mpa. as illustrated from the study results, we can approve some fundamental conclusions : there are big effects on rpc with deferent kinds and properties of raw materials and deferent curing conditions ; stress - strain curve shows the process of destroy with rpc samples ; x - ray diffraction analysis indicates that heat treatment at temperatures 90 accelerate the hydration of rpc sharply, therefore, mechanical and microstructural properties of rpc are highly dependent on heat treatment ; it is believed that rpc materials have excellent resistance to chloride permeability ; during the heat treatment, the shrinkage of rpc developed quickly because of chemical reactions ; the rpc with slag mostly has the advantage of rpc without slag about resistance to solutions corrosion

    研究結果表明:通過對rpc各組分摻量變化的研究,可以找到rpc的最優配合比;試件成型后的熱養護制度對rpc的性能影響巨大; rpc的抗壓應力?應變曲線可以反映出試件受破壞時微裂紋的擴展情況,剛纖維的摻入可以大幅改善rpc的韌性; rpc在成型后存在較大的收縮,而其中的化學收縮要遠遠大於乾燥收縮; rpc具有很強的抗氯離子滲透性能,漿體的密實度很高;通過x射線衍射實驗,可以發現rpc的膠凝體中ch晶體已經幾乎不存在,膠凝體主要由c - s - h凝膠和未水化水泥顆粒組成;在抗溶液侵蝕的實驗中,摻礦渣rpc的抗溶液侵蝕性能在絕大多數情況下要好於不摻礦渣試件,酸、堿溶液和浙江工業大學碩士學位論文摘要一些鹽溶液都會對rpc的結構產生侵蝕作用,但是機理各有不同。
  19. The same type of cement - soil mixing pile with concrete core, concrete pile and cement - soil pile that means they have the same pile length and pile diameter is deeply analyzed by finite element program. we get the q - s curve, the axis force of pile body curve, the stress of pile curve and the side and the end sharing load ratio of the pile curve by finite element program. with the help of the finite element program, the paper finds the relations between the pile ' s parameter and its bearing capacity and load transferring properties

    利用有限元計算分析了同比(樁長相同、樁徑相同)水泥土組合樁、水泥土攪拌樁和混凝土鉆孔灌注樁,得到了它們的荷載沉降曲線、樁身應力曲線、樁身軸力曲線、樁側樁端分擔荷載曲線等,通過這些曲線對它們的荷載傳遞規律以及變形特性進行了深入的分析。
  20. The simulated test of the mechatronics soft start equipment is made regarding the experimental platform of belt conveyor as load, the sensor design is had for selecting type, the testing datum are gatherd and analyzed, the rational curve of velocity in the starting and braking progress are gained, the best matching ratio of driving power for the double asynchronous moters is found

    以帶式輸送機實驗臺為負載進行了機械電子式軟起動裝置的模擬試驗,對傳感器進行了選型設計,對試驗數據進行了採集與分析,確定了合理的起、制動速度曲線,求出雙電機驅動功率的最佳配比。
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