離心分佈 的英文怎麼說
中文拼音 [líxīnfēnbù]
離心分佈
英文
centrifugal disintegration-
Keywords : moisture distribution, bound water content, bonding energy, solid - liquid separation, gravitational sedimentation, filtration and expression, centrifugal separation, thermal pyrolysis, and resource reuse and utilization
關鍵詞:水份分佈、結合水量、水份鍵結能、固液分離、重力沉降、過濾壓榨、離心分離、無氧熱分解、資源回收利用。Firstly, simulate flow field of rear smoke channel, plot velocity magnitude and ash concentration distribution in section of entry of heat pipe air preheater, compare with data which were measured in guiyang power station, verify simulation to be reasonable and right. secondly, simulate all kinds of factors which affect flow field ' s uniformity such as length, thickness, location of diffluent board, ash concentration, ash diameter, and so on, find the chiefly factors. thirdly, install guide board in curve channel in rear smoke channel, then simulate its " flow field, plot velocity magnitude and ash concentration distribution
在此基礎上模擬在冬夏兩季不同情況下,不同流速對熱管空氣預熱器壁面溫度的影響;然後對影響整個流場分佈的各種因素:包括分流板長度、厚度、偏離中心流道位置的偏離度、飛灰濃度、飛灰粒徑等因素進行數值模擬;最後提出在分流煙道轉彎處加裝導流板,並模擬加裝導流板后的流場分佈,得到下級空氣預熱器出口、熱管空氣預熱器進口處的斷面速度場分佈、濃度場分佈,以論證加裝導流板能達到流場均勻化的作用。In this thesis hydraulic experimental studies and theoretical analyses on the vortex - flow drop shaft were conduced and the following results were accomplished : ( 1 ) in the model test some hydraulic characteristics including the shape of air core in the center of the drop shaft, the radial distribution of water flow velocity and the distribution of pressure on the wall of the drop shaft were measured under the condition of high water head above 250m and large discharge above 1400m3 / s. ( 2 ) a kind of computational method for the spiral water flow in the air core region of drop shaft was discussed and applied and the results agree the experimental data well. ( 3 ) the total ratio of energy dissipation in the drop shaft can reach 90 % and the energy dissipation in every region was discussed quantitatively
本文通過試驗研究與理論分析對旋流式豎井泄洪洞應用於高水頭、大泄流量情況時存在的一些水力學問題進行了研究和探討,取得以下主要成果:一、結合小灣工程導流洞改建,對高水頭( 252m ) 、大泄流量( 1400m ~ 3 s )條件下旋流式豎井中的水流運動特徵進行了比較全面的測量,包括空腔形態、徑向流速分佈及井壁壓強等;二、提出了豎井空腔段螺旋水流水力計算方法,其計算結果與實測值吻合良好;三、利用試驗與計算結果,對旋流式豎井的消能機理進行了探討,對豎井各部分的消能能力有了總體認識;四、對豎井下部消力井的合理井深進行了優化試驗研究,發現消力井合理深度為0 . 9d左右;五、通過試驗研究,歸納出豎井水流總摻氣量估算方法,為導流洞排氣方案的設計提供了參考依據;六、在高水頭、大流量條件下,豎井空腔段下部流速很高,盡管水流螺旋運動引起的離心力可以確保井壁壓強保持正壓,但空化數依然較低,因此豎井的空化空蝕始終是工程界關注的重大問題。Numerical analysis of temperature distribution of metal solidification process in centrifugal acceleration field
離心加速場中金屬凝固過程溫度場分佈數值分析Finally, a correlative equation about bearing capacity of this structural member under bending and torsion is deduced, which may provide design of such structural members a valuable reference. to imitate centrifugal concrete - filled steel tubes used in real structures, three - dimension models are built up by using finite element method. the resistance performance of this structure under complex loads is studied
利用三維有限元模擬分析方法對離心鋼管混凝土在彎扭組合作用、彎壓組合作用、壓扭組合作用下的構件彈性應力分佈進行了研究,分析了離心鋼管混凝土構件在組合作用下的工作機理和承載力的相關關系。Aiming at the study actuality of fan performance monitoring system and analysis of fan performance curve changes affected by inlet - box and the different fixed - angles of guide blades in the course of installation, a fan flow monitoring model based on rbfnn in whole flow zone was established in this thesis. in the model, the method of no throttle and fan performance curve were used as basis. and on the basis of that model, fan performance curves of 4 - 73no. 8d were approached with experimental data of different speed, different opening - angles of guide blade and different resistance of pipeline, the precision and the error law of model were studied
本文針對電站風機性能監測系統研究較少的現狀,在實驗的基礎上分析了現場加裝進氣箱和由於安裝造成的導流器葉片開度不一致對風機性能曲線的影響,並在此基礎上採用無節流方法測量流量,以風機調節性能曲線為依據,建立了基於徑向基函數( rbf )神經網路的風機流量全程監測模型;以實驗室4 - 73no . 8d離心風機為研究對象,探討了rbf神經網路差壓模型在變轉速、變導流器開度和變管網阻力等工況下的應用精度和誤差分佈規律;最後用visualc + +語言開發了風機性能在線監測系統。In the experiment, we use the he - ne laser and the semiconductor laser as the source, record the bessel beam patterns behind the axicon by using a digital camera and a microscope, measure the radius of the bessel beam central spot by film - scanning and measure the effect of both the radius of the aperture and the open angle of the axicon on the maximum non - diffraction distance. the experiments show that a specific propagating range has constant power and the beam has a bessel - like distribution in this range. the results agree with the beam corresponding to a diffraction free beam
同時我們還採用膠片掃描的方法測量了無衍射光束的中心光斑尺寸,測量了不同光闌孔徑和不同稜角情況下的最大無衍射距離和傳播軸附近橫截面內微小光孔中的光強,實驗結果顯示當激光光束經過軸棱錐轉換後有一段距離功率變化很小,且分佈近似貝塞爾分佈,符合無衍射光束的特性;經過聚焦后,呈現三維分佈中空的光束bottlebeam ,實驗結果與理論分析基本吻合。Numerical simulation results indicate that, for low temperature dust particles, dust particles mainly exist in the area near the column center and their charge - number can be considered as a constant, while in the area where there are no dust particles, ion and electrons are in ambipolar diffusion ; for high temperature dust particles, both the distribution regions of dust particle and high ion density are expanded and dust charge - number is increasing with the distance from the center
計算結果表明:當塵埃粒子的溫度較低時,塵埃粒子主要集中在圓柱形放電器的中心很小的區域,塵埃粒子攜帶的電荷幾乎是一個常數,受塵埃粒子空間電荷的影響,離子在該區域的密度最高。在遠離中心區域,離子和電子呈現雙及擴散特點;當塵埃粒子的溫度較高時,塵埃粒子分佈的區域和高離子密度區域擴大,塵埃粒子離放電器中心越遠,攜帶的負電荷越多。Contrasting the results of simulation and the experiment for depositing the 3 inch thin films by icds technique, the center position of substrate and the target is in a 18mm offset, the thickness distribution homogeneity is under 8 %. based on the analyses of the theoretic heat distribution for the radiant heating system, a 3 inch size radiant heater fitting for the requirement is designed and made, whose temperature difference is under 6 %
其次,對3英寸范圍內的膜厚分佈進行了理論模擬,在此基礎上和試驗結果對比分析,發現:在倒筒靶直流濺射裝置下,如果採用一種讓基片中心和靶中心處于相對偏心距離為18mm的位置來制備3英寸薄膜,其膜厚分佈的均勻度范圍控制在8以內。Test method for particle distribution of cathode carbonates by centrifugation sedimentation
陰極碳酸鹽粒度分佈的測定離心沉降法It is found that the degree of mineralization and metamorphic coefficient and conversion potential of formation water, the fault is zone of sluicing of atmospheric infiltration water flowing from basin west margin to east ( centripetal flow ) and sedimentary compaction water flowing from qija gulong depression to west ( centrifugal flow )
通過地層水礦化度和變質系數等參數的分佈規律及一系列折算水位剖面圖的分析發現,該斷裂對水是不封閉的,並且是盆地西緣大氣滲入水向東流動(向心流)及齊家古龍坳陷沉積壓實水向西流動(離心流)的共同泄水帶。Earth ' s wobble causes water to be retained in an uneven manner around the globe much like a centrifuge
地球的擺動就象一個離心分離機,使水域以不均勻的方式分佈在全球。Now i seem to have hit a sweet spot ( slightly left of center ) where the bhs are hitting with the fps on a left / right plane at 20 and 30yds
現在么,我』 』似乎』 』發現了這個很妙的搭箭點(平衡中心略微偏左) ,從這個位置發射的刀片箭頭,在20和30碼的距離,還能水平分佈在子彈箭頭的左右兩側,可是In the process of steel - making, killing oxygen by adding aluminum process is a controlled object whose parameters are distributed and non - linear, and its observed data are discrete. the key point of this process is model of killing oxygen by adding aluminum process
煉鋼生產中,定氧加鋁工藝的被控對象具有參數分佈、非線性、動態觀測數據離散等特徵,定氧加鋁模型的建立是該工藝的核心。In icf ecperiment, the x ray produced by laser plamsa mainly distributes in sub - kilo electron volt region, whose overall energy, energy - spectrum characteristic, projecting time and its distribution in space are basic dataes in theory and experiment
在icf實驗中,激光等離子體產生的x光主要分佈在亞仟電子伏特區( 0 . 1 - 1 . 5kev ) ,它的總能量、能譜特徵、發射時間過程和空間分佈都是理論和實驗極為關心的基本數據。Because of the network of delicate veins located in the back of the brain, the work to isolate and separate them was meticulous and time - consuming
由於精細的血管分佈在大腦後面,所以分離它們是一項費心又費時的工作Rubber compounding ingredients - carbon black - determination of aggregate size distribution by disc centrifuge photosedimentory
橡膠配合材料.炭黑.用盤式離心沉澱攝影法測定集料粒度分佈Detailed numerical simulation of krain impeller at design operating condition is made, the computed results, such as circumferentially averaged shroud static pressure distribution, meridional velocity and relative flow angel et al., show good agreement with experimental data
對krain高速離心葉輪在設計工況下的內部流場進行了詳細的數值模擬,計算所得輪蓋壓力分佈、子午速度及相對氣流角分佈與實驗結果吻合較好,並且進一步加深了對二次流機理的認識。To improve the performance of the traditional icp method for the large data models of mesh watermarking, this thesis develops a new icp variant based on the framework of mesh multiresolution analysis. the author presents a novel method for acquiring the initial approximate transformation in terms of the distribution feature of points around the centroid
為避免迭代落入局部而非全局最優解,本方法利用網格的多解析度表示特性和網格上點到質心距離分佈的特徵信息,快速有效地確定初始矩陣。The enriched stable isotope tracer technique combined with neutron activation analysis and differential centrifugation was utilized to investigate the subcellular distribution of rare earth elements sm and yb in rat liver
Sm和, sup 168 yb作為示蹤劑,結合差速離心分離和中子活化分析技術naa初步研究了稀土元素sm和yb在大鼠肝臟亞細胞組分中的分佈。分享友人