無限小的數量 的英文怎麼說
中文拼音 [wúxiànxiǎodeshǔliáng]
無限小的數量
英文
iota- 無 : 無Ⅰ動詞(沒有) not have; there is not; be without Ⅱ名詞1 (沒有) nothing; nil 2 (姓氏) a surn...
- 限 : Ⅰ名詞(指定的范圍; 限度) limit; bounds Ⅱ動詞(指定范圍, 不許超過) set a limit; limit; restrict
- 小 : Ⅰ形容詞1 (體積、面積、數量、強度等不大) small; little; petty; minor 2 (年紀小的; 年幼的) youn...
- 的 : 4次方是 The fourth power of 2 is direction
- 數 : 數副詞(屢次) frequently; repeatedly
- 量 : 量動1. (度量) measure 2. (估量) estimate; size up
- 無限 : infinite; limitless; boundless; immeasurable; unlimited
- 數量 : quantity; quantum; amount; magnitude; number
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Abstract : based on the analysis of the main failures discovered in pavement on steel deck plate and the demanding service condition of the pavement on steel deck, high - temperature rutting test, low - temperature bending test and controlled stress flexural fatigue test are used to study the performance of asphalt mixtures modified by epoxy resin including high - temperature stability, low - temperature cracking - resistance, and fatigue cracking - resistance, which are served to evaluate the modification effect of epoxy resin of different contents. with the addition of epoxy resin, all the three performances are improved greatly. however, when the amount of epoxy resin added is over a certain value, the modification effect will be stable with no extra benefit detected. finally, in terms of the properties of the three respects, 20 ?, 30 ?, 30 ? are given separately as the proposal adding contents
文摘:在分析鋼橋面鋪裝層主要病害和特殊工作環境的前提下,分別採用高溫車轍試驗、低溫小梁彎曲試驗和控制應力小梁彎拉疲勞試驗,研究了不同環氧樹脂摻量下的環氧樹脂改性瀝青混合料的高溫穩定性、低溫抗裂性和抗疲勞性能.試驗結果表明:環氧樹脂對這3個方面都有很大的改進效果,但改性效果和樹脂的添加量並不是一個無限遞增的關系,當添加量超過一定數值以後,改性的效果將趨于平穩.最後就高溫、低溫、疲勞3個方面分別提出環氧樹脂添加量為20 ? , 30 ? , 30 ?的建議值Based on the analysis of the main failures discovered in pavement on steel deck plate and the demanding service condition of the pavement on steel deck, high - temperature rutting test, low - temperature bending test and controlled stress flexural fatigue test are used to study the performance of asphalt mixtures modified by epoxy resin including high - temperature stability, low - temperature cracking - resistance, and fatigue cracking - resistance, which are served to evaluate the modification effect of epoxy resin of different contents. with the addition of epoxy resin, all the three performances are improved greatly. however, when the amount of epoxy resin added is over a certain value, the modification effect will be stable with no extra benefit detected. finally, in terms of the properties of the three respects, 20 ?, 30 ?, 30 ? are given separately as the proposal adding contents
在分析鋼橋面鋪裝層主要病害和特殊工作環境的前提下,分別採用高溫車轍試驗、低溫小梁彎曲試驗和控制應力小梁彎拉疲勞試驗,研究了不同環氧樹脂摻量下的環氧樹脂改性瀝青混合料的高溫穩定性、低溫抗裂性和抗疲勞性能.試驗結果表明:環氧樹脂對這3個方面都有很大的改進效果,但改性效果和樹脂的添加量並不是一個無限遞增的關系,當添加量超過一定數值以後,改性的效果將趨于平穩.最後就高溫、低溫、疲勞3個方面分別提出環氧樹脂添加量為20 ? , 30 ? , 30 ?的建議值By these new control charts, the steady control limits are able to build when the production begins, the problem is solved that the appropriate control limits are hard to be built by using the traditional shewhart control chart in small batch production environment because enough data can not be acquired
這種控制圖可以在生產過程一開始就根據給定的條件建立起穩定的控制界限,從而解決了傳統的休哈特控制圖應用在小批量生產條件下數據量不足,無法建立起合適控制界限的問題。Can it fit mining lasers ? does it get the bonus to number of drones, when combined with a very small drone bay would preclude use of fighters
她能安裝采礦激光嗎?或者她有蜜蜂控制數量加成,但是卻受限於一個很小的無人機掛艙以使得她雖然不能放鐵騎,但是卻可以當一個擁有一大堆工蜂的蜂后呢?In chapter 2, an accurate modified reynolds equation is derived. the modified reynolds equation is solved numerically with the finite different method, the generated axial thrust force, minimal mucus film thickness, load capacity of hydrodynamic pressure and circumferential friction under the rectangular screw are obtained. at last, using numeral methods and coordinate graphs, the influences of rectangular screw parameters on the generated axial thrust force, minimal mucus film thickness, load capacity of hydrodynamic pressure and circumferential friction are studied and analyzed
第二章,首先推導了非牛頓流體的變形雷諾方程,化簡了雷諾方程,得出了矩形螺紋下有限差分方程;還推出了矩形螺紋作用下軸向摩擦牽引力、粘液膜厚度、粘液膜承載能力、周向摩擦阻力無量綱表達式,最後用數值計算方法求解,通過坐標圖分析了矩形螺紋參數對軸向摩擦牽引力、最小粘液膜厚度、粘液膜承載能力、周向摩擦阻力的影響。Following, making development study from the three directions : the first one is how to reduce calculation when to use markowitz model. this text has improved the efficient frontier of markowitz model utilizing free risk assets, and reduced calculation about revenue rates " co - variance matrix utilizing single or multiple factors, and so on. the second one is to add thinking factors about, such as transaction fee, fund limitation, lowest transaction unit ' s limitation, risk measures and exchange rate risk of international portfolio securities, so as to make markowitz model closer to our country ' s practice
接著,分三今方向對markowitz模型進行了拓展研究:第一個方向是運用markowitz模型時如何減少計算量,本文利用無風險資產來改進markowitz模型的有效邊界,利用單因子或多因子模型來減少收益率協方差的計算量等等;第二個方向是增加考慮因素,諸如交易費用、資金限制、最小交易單位限制,風險測度和國際組合證券的匯率風險,使markowitz模型更貼近我國的實際;第三個方向是對markowitz模型進行動態拓展研究,提出了將證券收益率看成是隨機序列時的投資決策模型,深入研究了m ? v有效邊界隨資產品種數增加而發生的漂移,並用解析方法和幾何圖形描述了漂移的軌跡和方向。The application on substitution of equivalent infinite small in algebra sum ' s limiting operation
無窮小量的等價代換在代數和的極限運算中的應用Considering the limited energy and transmission range of sensor nodes in sensor networks, an innovative routing algorithm named self - adaptive flooding based on delay is proposed. in this algorithm, sources deliver route request packets ( rreq ) and sink answers route reply packets ( rrep ) to build routes. in order not to miss optimum routes with the best metrics, the algorithm is to wait a specific amount of time to ensure that almost the rreq near the best metrics is received
為此本文在無線傳感器網路中研究了基於自適應的路由演算法,主要工作如下:針對傳感器節點能量及傳輸范圍有限等特點,提出了一種基於延遲的自適應洪泛路由演算法,首先通過源節點在網內用較小的路由請求報文和路由回復報文來建立路由,路由建立的過程中自適應地確定等待時間以使更優的路由請求報文得到轉發,然後源節點再沿著建立好的路徑轉發較大的數據報文。To put into operation a large amount of non - linear load, make in harmony wave of rural power grids serious becoming in pollution, pass to rural local electric wire netting main in harmony analysis of wave source, put forward in order to restrain from insert rural power grids in harmony wave source voltage total in harmony wave distortion rate and the containing rate change last device number pulsating for increase of goal, increase the pulse of the current change device and install light specified value electricity active wave filter mix with passive wave filter near the harmonics source to control the wave in harmony
摘要大量非線性負荷的投運,使農村電網的諧波污染日趨嚴重,通過對農村地方電網主要諧波源的分析,最終提出了以限制接入農村電網的諧波源的電壓總諧波畸變率和各次諧波電壓含有率為目標的增加換流裝置脈動數,以及在諧波源附近裝設小額定值的電力有源濾波器配以無源濾波器的混合型電力濾波方式,以進行諧波治理。In chapter 4, the modified reynolds equation is solved numerically with the finite different method, and the generated axial thrust force, minimal mucus film thickness, load capacity of hydrodynamic pressure and circumferential friction under the serrate screw are obtained. at last, using numeral methods and coordinate graphs, the influences of serrate screw parameters on the generated axial thrust force, minimal mucus film thickness, load capacity of hydrodynamic pressure and circumferential friction are studied and analyzed
第四章,首先求出鋸齒形螺紋下數值計算所需的有限差分方程,再推出了鋸齒形螺紋作用下軸向摩擦牽引力、粘液膜厚度、粘液膜承載能力、周向摩擦阻力無量綱表達式,最後用數值計算方法求解,通過坐標圖分析了鋸齒形螺紋參數對軸向摩擦牽引力、最小粘液膜厚度、粘液膜承載能力、周向摩擦阻力的影響。So it is necessary to reflect the inner reality physical field ' s numerical number analogy method to analysis and improve the magnetic field and the computing accuracy of the cable ' s eddy - current detection. T his affords helping for the researching of biased cable instrument in the future. first open domain electric magnetic problem ' s breaking method is done with, which supposing fictitious boundary far away from the region. second breaking the infinite region into the finite region and supposing the electric magnetic is too small to be ignored
通過採用目前處理開域電磁場問題的截斷法,人為地設定一個遠離待求區域的虛擬邊界,將無限區域截斷為有限區域,且認為在該邊界外面的電磁場已衰減得足夠小,小到可以忽略不計,從而令邊界上的電磁場場量為零,在此有限區域內採用較為成熟的A , A法,並且併入庫侖規范建立數學模型。It is recommended that the current policy of maintaining the current fleet size 4, 350 and converting more rmb to gmb services should be continued, and that the new gmb services should mainly serve as feeders to the mass carriers, as well as serving areas physically inaccessible to buses or where demand does not warrant franchised bus services
我們建議應維持現行的政策,把小巴的數量限制在現有水平( 4 , 350輛) ,並繼續把紅色小巴改為專線小巴。此外,新的專線小巴路線應主要提供接駁集體運輸的服務,以及為巴士無法到達或需求量不足以開辦專利巴士線的地方提供服務。The solving steps are as follows : the field is divided into three regions by the cylindrical surface of the finite - length cylinder and the location of the delta - coils. because " the surface current source is placed at the interface, the non - homogenous restricted equation on the magnetic vector potential is transformed into the homogenous helmholtz equation. by using the method of separation of variables to solve equation and according to the interface conditions and the condition at infinity to determine the unknown constants, the expressions for the magnetic vector potential of the three regions are solved out
在求解過程中,假定放置式圓柱線圈是由無窮多個對稱圓環線圈密饒而成,首先求解含有有限長磁芯的通電對稱圓環線圈的電磁場:以有限長圓柱磁芯的側面和圓環線圈所在圓柱面為分界面將場域劃分為三個小區域,由於場源放置在內邊界面上,使得關于矢量磁位的非齊次約束方程轉化成齊次亥姆霍茲方程,利用分離變量法求解,根據分界面鄭州大學碩十研究生畢業論文摘要條件以及無限遠條件確定待定常數,從而得到各場區矢量磁位的表達式。Nevertheless, the probability of this reaction occurring in the general population from food exposure is thought to be very low. to protect the public from unnecessary exposure to potentially harmful substances, food and animal feed products containing chloramphenicol are illegal in the united states
對易受此副作用影響的少數人來說,接觸氯黴素可造成嚴重後果。關于這類人使用氯黴素的「安全」限量尚無定論。然而,據說在普通人群中因接觸食品而引起此類反應的可能性很小。In chapter 3, the modified reynolds equation is solved numerically with the finite different method, and the generated axial thrust force, minimal mucus film thickness, load capacity of hydrodynamic pressure and circumferential friction under the trapezoidal screw are obtained. at last, using numeral methods and coordinate graphs, the influences of trapezoidal screw parameters on the generated axial thrust force, minimal mucus film thickness, load capacity of hydrodynamic pressure and circumferential friction are studied and analyzed
第三章,首先求出梯形螺紋下有限差分方程,然後推導了梯形螺紋作用下軸向摩擦牽引力、粘液膜厚度、粘液膜承載能力、周向摩擦阻力無量綱表達式,並用數值計算方法求解,通過坐標圖分析了梯形螺紋參數對軸向摩擦牽引力、最小粘液膜厚度、粘液膜承載能力、周向摩擦阻力的影響。From the experiments, the number and width of fracture are obviously decreased, and pasting cfrp laminates play important role in improving rc construction durability ; with anchoring, premature is prevented and the ultimate shear capacity is increased ; taking properly anchoring measure, the ultimate shear capacity of rc t - section beams of initial loads is higher than that of no initial loads ; under non - anchoring case, because the rehabilitation of rc t - section beams with cfrp laminates are destroyed suddenly, the reinforcement effect maybe decrease
試驗結果表明,粘貼碳纖維布顯著減小了鋼筋混凝土t梁的裂縫數量和寬度,抑制了裂縫的開展,對提高普通鋼筋混凝土構件耐久性有重要作用;採用適當的錨固措施可以有效防止構件發生早期破壞,提高構件的極限抗剪能力;對于有錨固的粘貼方式,有預加載的t梁抗剪極限承載力明顯高於無預加載的t梁。試驗還表明,在無錨固的情況下,用碳纖維布作抗剪加固后的t梁破壞較突然,有可能使梁的加固效果出現負效應。The project is completed in the collaboration of the transportation college of jilin university and transportation science institute in jilin province. the paper mainly studies the characteristics and mechanical performance of small size member of bridge, the problems of concrete dense degree and shear lag effect of wide flange. the static load test and supersonic nondestructive test of four pieces of prestressed i - girder with varying section are carried out in bridge structure laboratory of jilin university
本文針對橋梁構件局部尺寸較小部位的混凝土密實度問題,進行了2片腹板寬度為14cm , 2片腹板寬度為16cm的變截面預應力工字梁的靜載試驗和超聲無損檢測試驗,提出密實度系數的概念,對試驗梁的密實度進行定量評定,推導了工字梁的塑性系數公式,基於塑性理論給出了試驗梁的開裂荷載和極限承載能力計算公式,分析了試驗梁的密實度對其開裂荷載和極限承載能力的影響。分享友人