水流相對方位 的英文怎麼說
中文拼音 [shuǐliúxiāngduìfāngwèi]
水流相對方位
英文
relative bearing of current- 水 : 名詞1 (由兩個氫原子和一個氧原子結合而成的液體) water 2 (河流) river 3 (指江、河、湖、海、洋...
- 流 : Ⅰ動1 (液體移動; 流動) flow 2 (移動不定) drift; move; wander 3 (流傳; 傳播) spread 4 (向壞...
- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 對 : Ⅰ動詞1 (回答) answer; reply 2 (對待; 對付) treat; cope with; counter 3 (朝; 向; 面對) be tr...
- 方 : Ⅰ名詞1 (方形; 方體) square 2 [數學] (乘方) involution; power 3 (方向) direction 4 (方面) ...
- 位 : Ⅰ名詞1 (所在或所佔的地方) place; location 2 (職位; 地位) position; post; status 3 (特指皇帝...
- 水流 : 1. (江河) rivers; streams; waters2. (流動的水) current; water flow; fluent; flow; [水文] stream current
- 相對 : 1. (面對面) opposite; face to face 2. (非絕對的) relative 3. (比較的) relatively; comparatively
- 方位 : position; bearing; direction; points of the compass; placement
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So this article analyses deeply in the method of ensur ' my designing food rolume which is an important element to affect the " designimy height of bridge " it brings forward an " arverage optiminmy suiting line " method which is a bondage discommode series at the same time it puts forward a ensurmy principle for rough coefficient " and " fallimy flood proportion which are both suitable to heilongjiang province at last this article introduces the " three - days rainimy rolume " method
本文立足於黑龍江省各種河流的洪水特點,結合以往工程實際,對影響跨河橋梁設計高度的主要因素? ?設計洪水流量及其相應洪水位的確定方法加以詳細分析。提出有約束不連序系列的加權優化適線法及適合於黑龍江省的河流粗糙系數和洪水比降的確定原則,並介紹了三日降雨量法。Based on the analysis of the fishing capture monitoring data, which obtained from 5 deep water drift net fishery resources investigation boats from april 1998 to march 2001, the results indicated that the psenopsis anomala which took accounted for 8. 68 % ~ 27. 16 % of the total catch, was one of the three preponderant species in the northern part of the east china sea and southern part of the yellow sea. ( branchiostegidac ranked first, followed by the psenopsis anomala or argyrosonus altetnate ). the yearly quantity distribution concentrated in summer and autumn, and reached the peak in latter summer to early autumn
摘要根據對5艘深水流網資源信息船1998年8月~ 2001年3月連續漁撈調查資料進行分析研究,結果表明:刺鯧是本海域深水流網漁業的三大優勢種之一(方頭魚占首位,刺鯧和白姑魚年間變動量相互交替) ,占年總漁獲量的8 . 68 % ~ 27 . 16 % ;周年數量分佈集中在夏、秋季,全年數量最高值出現在夏末初秋。Many planets ( for example, ganymede, mercury, the earth, jupiter and saturn ) and stars ( for example, the sun ) possess intrinsic magnetic fields. the explanation for their existence and variation remains a great challenge to planetary scientists and astrophysicists. this article attempts to review some recent developments and difficulties in the study of magnetohydrodynamics for the electrically conducting fluid interiors of planets and stars. it is the fluid motions, usually driven by thermal convection, that generate and sustain magnetic fields through magnetohydrodynamic processes in planets and stars. in planets, the magnetohydrodynamic processes are strongly affected by the combined and inseparable effects of rotation, magnetic fields and spherical geometry. the key dynamics involves the interaction between the coriolis and lorentz forces. in the sun, it is the solar tachocline, a thin shear flow layer located at the base of the convection envelope, that plays an essential role in the solar magnetohydrodynamic processes which produce the 11 - year sunspot cycle. some results of a new nonlinear three - dimensional solar dynamo model are also presented
許多行星(如木衛三,水星,地球,木星和土星)和恆星(如太陽)具有內部磁場.對這些磁場的存在和變化的解釋對行星科學家和天體物理學家是一個巨大的挑戰.本文試圖總結行星和恆星的導電流體內部磁流體力學研究的新近發展和困難.一般由熱對流驅動的流動通過磁流體力學過程產生並維持在行星和恆星中的磁場.在行星中磁流體力學過程強烈地受到轉動,磁場和球幾何位型的綜合影響.其動力學的關鍵方面涉及科里奧利力和洛倫茲力間的相互作用.在太陽中其流線,即處于對流層的薄的剪切流層在太陽的磁流體力學過程中扮演了一個基本的角色,並由之產生了11年的太陽黑子周期.本文也給出了一個新的非線性三維太陽發電機模型When soil antecedent condition is dry and the initial rainfall intensity is high, peak surface runoff also considerably lag behind that of rainfall, because of the formation of temporary relative impermeable top layer ; b ) surface runoff is controlled primarily by infiltration - excess runoff mechanism under unsaturated condition ; the major fraction of surface runoff are dominated by saturated infiltration - excess runoff response, only a small fraction by return flow mechanism when soil is saturated ; c ) subsurface flow is dominated by saturated runoff mechanism, and the duration of subsurface post the rainfall end is dependent upon rather the soil properties than the rainfall characteristics ; d ) subsurface flow intensity in cultivated soil layer ( 0 ~ 20cm ) is high up to 35mm / h when rainfall intensity is up to 120mm / h, indicating the existing of macropores and pipe flow in cultivated layer
2 )耕作制下紫色土的產流主要機制是: 1 )當雨前土壤含水量未達到飽和狀態時,表面產流起始時間有明顯滯后現象,這與紫色土的快吸水性和較多非毛管孔隙密切相關;當雨前土壤較乾燥,降雨初期雨強較大時,易形成臨時相對不透水表層,表面產流峰也有明顯滯后現象。 2 )表面徑流的產流方式主要是超滲產流,當土壤達到飽和狀態后,有四川大學博士學位論文小部分回歸流發生,但主要是飽和超滲產流發生,因為紫色土的相對不透水層和其它透水障礙層不明顯。 3 )壤中流主要是飽和產流,與降雨過程有明顯的滯后,而且雨停后的壤中流產流歷時與降雨特徵無關。According to the background information from the above, the facts of the combination, expansion and quick development of wut, and the strategic significance of the world ' s economy and the development of university, and from the angle of history, reality and the future, to a large degree, this paper analyzes three strategic environment faced by university, that is : intellectual economy and the world ' s new technical revelation ; marketing economy and modernization of china ; the popularity of education and the reform of chinese higher leaning system. through a thorough analysis of thirty six comprehensive universities and science and engineering colleges owned by the national education department, and through comparison between typical universities, this paper also objectively analyzes the strength and advantages of the development of wut on the aspects of subjects, trade and scale, and the disparity existed in subject strength, scientific and technical ability, qualified personnel construct and the economic base. through those analysis, it points out several problems in the development of university, such as " no common idea, no complementary subjects, no fixed core, no unified campus " and etc. therefore, a basic conclusion is drawn, that is " generally speaking, wut ranks among the second class of the nation ' s higher learning groups, and which possesses many potentialities to help itself step into the first class universities
本課題正是從上述背景出發,緊密結合武漢理工大學合併、擴招和大發展的實際,從世界經濟和大學發展的高度,從歷史、現實和未來的角度,大范圍、多層面、寬視野地分析了學校發展所面臨的知識經濟和世界新技術革命、市場經濟和中國現代化建設以及教育大眾化和高校管理體制改革三大戰略環境,通過對育部所屬36所綜合及理工類高校的整體分析和典型大學的個案對比,比較客觀地分析了學校發展在學科、行業和規模三方面的實力與優勢以及存在的學科實力、科技能力、人才結構和經濟基礎等四方面的差距,指出了學校發展中「無共同的理念、無互補的學科、無凝聚的核心、無統一的校園」等問題,並得出一個基本結論:學校總體位居全國高校第二集團水平,具有向一流大學邁進的基礎,同時,相比國內一流大學又有很大的差距。This paper, based on normalizing well logging data while drilling and correcting depth into true vertical depth and calculating reservoir parameters and etc, combining the practical ease of mobei oilfield, extracted logging and geological pattern characteristic of target oil - gas formation and geosteering mark formation, and used bp neural network and regressive analysis to create predicting mode of geosteering parameter to build relevant contrast curve ; adopted geometry geosteering method to fix on die drilling direction of bit upper and declination, the position in reservoir, to judge the real drilling case. all finely solved the problem to follow the geological target while drilling for three horizontal well these methods improve the drilling horizontal well ability by using the techniques to follow the geological target while drilling, and then it is convenient and practicable
本文在開展隨鉆測井資料的標準化和斜井校正及儲層參數解釋與含流體性質判釋等工作的基礎上,結合研究工區莫北油田的實際情況,提取了目標油(氣)層和導向標志層的測井地質模式特徵,並採用bp神經網路法和回歸分析法建立了地質導向參數的預測模型、構造了相應的對比曲線;採用幾何導向法確定鉆頭上下傾鉆進方向及其在目標層的位置,以判斷實際鉆進地層情況,很好地解決了研究工區三口水平井的隨鉆跟蹤地質目標的問題。The activity area of sediment and solution in gooey is distributary river, which has gigantic water power, good degree of sorting and roundness, gruff grain. lower mud and mica content
分流河道的主體部位水動力較強,分選性和磨圓度較好,粒度粗,雲母礦物和泥質含量較低,是膠結物沉澱和溶解的活躍區,因而也是物性相對較好的地方。The geological factors are important besides them, which are related to the loess landslide and evolution of gullies, specially for bedrock folds, bedrock joints and loess joints. in field, the data of the bedrock elevation in the three sheets combined with the research from south to north lively were got by gps12xlc pocket locator, the type and its evolution of bedrock, loess landslides and distribution of hydrographical net were explored too. at office, the synthetic analysis and contrast were used including the simulating analysis about the data by mapinfo 6. 5, software of gis, discussion and communication with experts, in order to demonstrate and reveal the rules between the loess landforms and its pale bedrock landforms and the impact of structure on erosion interiorly in shaan bei
在野外,以代表調查區和路線調查相結合的方法,利用gps12xc型手提式定位儀採集基底高程數據,實地觀察基底地層產態變化規律和特徵,觀察黃土地貌、黃土崩塌、水系展布及土壤侵蝕等與地質構造之間的關系;在室內主要進行綜合分析與對比,利用gis系統的mapinfo6 . 5軟體對採集數據模擬分析,並將認識成果與其他專家學者進行交流和探討,從而論證和揭示陜北黃土地貌南北縱向分異與基底古樣式關系特徵及水土流失與構造因素之間的內在規律。The contents of this paper include the following several aspects : ( 1 ) a model of the fractures leakage is built through counting and analyzing the wealthy geological records of hae field, and a model of the fracture water transporting is also built according to the fracture water condition of its recharge and its runoff and its discharge in hae field ; ( 2 ) this paper studies the chemical behavior and the migration parameters of the elenent sr2 + in ground water in hae field, the main contents include : the presence form of the element sr in ground water is analyzed by way of the rmodynamics ; the absorption mechanism that granite and sand stone absorbs sr element is analyzed based on theory and experiment test the diffusion parameters of the element sr in water and in granite and in sand stone are researched with laboratory experiment test ; the partition coefficient of sand stone and granite to sr is tested by the batch way
其研究內容包括以下幾個方面: ( 1 )通過對我國hae預選處置場豐富地質資料的大量統計和分析,建立了該處置場的基巖裂隙滲透模型。再根據hae預選處置場基巖裂隙水的補給、徑流、排泄條件及水位動態特徵,建立了預選處置場基巖裂隙水水運動模型。 ( 2 )對高毒性鍶元素在我國hae預選處置場地下水中的化學行為和遷移參數進行系統的研究,其中主要包括運用熱力學方法分析了鍶元素在地下水中的存在形態,利用理論分析與實驗測試相結合的方法分析了花崗巖和砂巖對核素鍶的吸附機制,採用室內實驗裝置研究了核素鍶在地下水中的擴散參數以及在花崗巖和砂巖中的本徵擴散參數,採用靜態批式法研究了鍶在砂巖和花崗巖中的分配系數。In the paper, i construct a software platform for the turbine and feedwater pump. the platform is an object - oriented system that can be extended by the other models. i have programmed the classes of the performance of the turbine and feedwater pump. besides, the software platform has the functions of giving alarms, the storage of data, the analysis of accident, configuration of chart, administrator operation, report, the query of history data. the paper has explained the methods of constructing the platform at the same time i set forth in details the connections of mis with dcs and distributing the performance data
本文針對電廠開發了汽輪機與給水泵組性能分析與評價平臺,本系統平臺用面向對象方法編制,並與多位同學合作編寫了汽輪機與給水泵組與性能有關的多個模塊同時可以另外插入模塊擴充功能,此系統平臺還具有數據存儲、歷史數據查詢、報警處理、事故分析、曲線組態、管理員操作、數據報表等多種功能,此外,本文詳細闡述了平臺的構建過程並且詳細論述了dcs與系統的連接方法, activeform電廠設備性能數據網路發布的方法以及現今電廠流行的pi實時數據庫的深入開發與利用,並分別編寫了相應的程序。How many pumps were turned on should be based on the dynamic design according to project target. and how many pumps should be in operation in standard shut off procedure. it was approved that although the theoretical boundary of decline of groundwater level is 10m, the actual boundary is only about 6m
提出了一些與真空預壓加固地基設計相關的概念和處理方法,如定義真空預壓加固區場地形狀系數,提出按加固土體體積來確定射流泵數量、根據工程需要動態設計開泵量、增加停泵標準中對開泵量的規定等設計思想等,論證了真空預壓加固地基時地下水位下降的理論極限深度為10m ,而實際極限深度約為6m 。In this thesis, based on a digital signal processor tms320f240, a controller for pmsm is researched an designed. we analyzes the mathematics model of pmsm, researchs vector control of pmsm and space vector pwm, discusses the controller of position, speed and current, designs the mrfas position controller, pid speed controller and pid current controller, sets up pmsm ac servo control system, designs dsp controller, and develop the corresponding sofeware. at last, the designed controller is simulated under matlab / simulink, and the results are gived
分析了水磁同步電機的數學模型,研究了永磁同步電機的矢量控制方法和空間矢量脈寬調制原理,討論了位置環、速度環和電流環的控制方法,設計了模型參考模糊自適應位置控制器、 pi速度器和pi電流控制器,組建了永磁同步電機交流伺服控制系統,設計dsp控制器,並開發了相應的軟體。最後在matlab simulink環境下對系統進行了動態模擬,並給出了模擬結果。The width of main channel would influence the water level rising rate greatly in flood events. when the discharges in main channel increased to 8000 m ' / s from 3000 m3 / s the water rising amplitude at hydrometer stations in the lower yellow river was correlative well with the exponent ( - 0. 65 ) of main channel width and the exponent ( - 0. 33 ) of river longitudinal slope
洪水期主槽寬度對水位漲率有較大影響,主槽流量從3000m ~ 3 s增大到8000m ~ 3 s時,下游各水文站斷面水位的抬升幅度與主槽寬度的( - 0 . 65 )次方和河道縱比降的( - 0 . 33 )次方具有較好的相關關系。In the aspects of choice that make the price method, because of canning compare the company analysis method with can compare the bargain analysis method must have the prosperous capital market, more case example, lack domestic current the bargain of the state - owned property to say, very much the enough case example props up. and buy the market multiple analysis method analyze first public of and buy the market bargain multiple, and usually is trading the scale to ascend to take into the restrict with the industry category, for example, can be provided as analytic bargain a bargain for being limited by this front in six months, target company in the electric power profession, the scale limit in 50, 000, 000 dollars including, this kind of method and ca n ' t provide the help of high times. but the dividends usuallies convert into cash to analyze the method to get the analysis of the bonus from the target company to the value that get the target company. the above method exsits current state - owned property make price very much the localization of the different degree, the past a text tries to use value analysis method as to lends support to the method, the cash discharge converts into cash to analyze method ( the method of dcf ) as the main method, the certain state - owned property procures the price. among them, use the cash discharge converts into cash to analyze the method makes sure the income is after procuring, value analysis the method gets of result the conduct and actions manages with state - owned property the section to make the basis of the price for the state - owned property, two kinds of methods is mutually combinative, make sure the state - owned property procure the price
以上方法對于目前國有資產的作價都存在不同程度的局限,故本文嘗試用賬面價值分析法為輔助方法,現金流量折現分析法( dcf法)為主要方法,確定國有資產收購價格。其中,用現金流量折現分析法確定收購之後的收益,賬面價值分析法得到的結果作為與國有資產管理部門就國有資產作價的依據,兩種方法相互結合,來確定國有資產收購價格。同時論文對國有企業收購整合的模式作了積極的探索,地方電力公司投資新的水利發電項目往往同時有一部份是排灌、防洪等非經營性的,或稱為公益性的無收益項目,論文對新建項目的經營性資產與非經營性資產合理比例作了深入的探討,重慶大學碩士學位論文並建立了分析模型,對于新項目的投入資金結構進行了較為深入的分析,並建立了相應的項目融資模型。With the meteorological and hydrographic data in songhuajiang and nenjiang valley from 1951 to 1995, using correlation analysis and empirical orthogonal analysis, the rule of the flood and relation between flood and precipitation distribution in this region are discussed. the results show that periodic change of water level is obvious in this region. now water level is in the serious stage from 1980 ' s. there are great relation between the water level of flood period and the precipitation. the unusual precipitation of nenjiang valley has greater impact than that of second songhuajiang valley. at the summer in 1998, songhuajiang and nenjiang valley encountered the ghastly flood and the reason for that is the anomalous precipitation great exceeding the historic maximum
利用松花江,嫩江流域1951 1995年期間的氣象和水文資料,採用相關分析,經驗正交分析等方法,討論了該流域洪澇發生的規律及其與流域內降水分佈的關系.文章指出,江流域的水位變化有明顯的階段性,且具有全流域一致的特性,目前正處在80年代以來洪澇較嚴重的階段;嫩江流域降水異常偏多對松花江洪澇的影響比第二松花江的作用要大; 1998年夏季,松花江,嫩江流域出現超歷史紀錄特大洪水的關鍵原因是嫩江流域6 8月的降水距平百分率遠遠超過了歷史上的的最大值At the same time, the method of disposal phase shift of ct by compensation is introduced. then the analysis and statistic of electrical power quality, the control scheme and compensating amount of capacitor for reactive power compensation are analyzed respectively. and in the paper, the control with a / y and the switch with ac contactor and solid state switch is valid measure not only for improving operate level economically and amending electrical power quality but also for avoiding of replacing switch frequently and decrease economic loss
然後對現有的演算法進行了詳細的分析、比較,篩選出既能滿足硬體要求又可降低投資、保證精度、簡化軟體的方案,確定了準同步采樣的方案,並通過對準同步采樣誤差的分析,提出了一種從45開始采樣,從而提高精度的采樣數據處理辦法,同時,對于電流互感器相位漂移提出了一種補償辦法,接著對裝置中電能質量分析與統計以及無功補償中電容器的補償量、投切原則也作了相應分析,其中對于無功補償採用y混合接線,並利用交流接觸器和固態開關共同投切電容,不但提高了經濟運行水平、改善了電能質量,而且有效的避免了頻繁更換開關,減少了經濟損失;最後,設計了裝置的硬體電路並繪制了相應的軟體流程圖。Centrifuge model test technique preferably solves two problems : one is the gravity loss of the model soil, the other is the coupling problem between the seepage field of the ground water and the stress field of the stratum, which is a guidance for other deformation controls under the similar condition
離心模型試驗技術較好的解決了在地下工程研究中模型土體的自重損失和地層位移分析中地下水滲流場和地層應力場相互耦合作用問題,對于在相似條件下富水地層隧道開挖施工如何控制地表沉降變形的研究方面具有指導意義。The research of reservoir design flood is one of basic works in this subject. it is based on the reasons, and the actual conditions of baipenzhu reservoir are combined, the following contents are researched in this paper : 1. according to the actual conditions of baipenzhu reservoir and through the compare of parameters estimation methods, a objective and having fine statistic characteristics p - iii frequency curve distribution parameters estimation method of proximate baipenzhu reservoir is putted
正是基於這種考慮,本論文結合白盆珠水庫的實際情況,本著理論性與實用性相結合的原則,重點研究以下內容: 1 、根據白盆珠水庫的實際情況,對各種參數估計方法進行比較,提出一種客觀、有良好統計特性、適用於白盆珠水庫的p ?型分佈參數估計方法; 2 、利用實測流量資料推求設計洪水過程; 3 、分析計算可能最大洪水( pmf ) ; 4 、對兩種方法計算的設計洪水過程進行調洪演算,推求水庫特徵水位。Until now, there have been a few reports on the damage of the water pumps caused by sand and water cavitation. by use of the test loop for solid and liquid two phases, under the condition of 3 % head drop, the damage location and relative degree of the sand and water cavitaiton occurred on the impeller were tested and researched. the result was, them, compared with the results under the condition that water cavitation occurred and no cavitation but only wear occurred. the differencts were analyzed. the analysis result can be used as the basis of the further research and the improvement of the impeller shape
目前含沙水汽蝕對水泵損傷方面的報導甚少,本文利用固液兩相流試驗臺,對離心泵閉式葉輪在含沙水汽蝕時( 3揚程下降點)的損傷部位和相對程度進行了試驗研究,並將此結果與清水介質發生汽蝕時的損傷情況[ 13 ]及含沙水無汽蝕情況下的磨損情況[ 7 ]相比較,對其差異進行了分析,為今後進一步探討葉輪損傷機理和葉型改進提供了實驗依據。Optimization model of networks " roughness is established. in this model, objective function is the average scedasticity of relative error for water level and discharge. with the recorded water level and tidal data, the value of roughness is optimized
建立了以流量和水位相對均方差作為目標函數的河網糙率優化模型,並利用實測的河道水位及潮流資料,對河道的糙率取值進行了優化,所建立的糙率優化模型更加合理,計算的效率及精度大大提高了。分享友人