水擊現象 的英文怎麼說
中文拼音 [shuǐjīxiànxiàng]
水擊現象
英文
water hammer-
By the large quantity of indoor and field soil mechanics test, this paper investigated physics and mechanics property of xigeda stratum and xigeda compounding filling, profoundly and systematically studied on shearing strength, cbr ( including indoor cbr and field cbr ) and intensity feature of xigeda compounding filling. the new achievement and cognition as follows : ( 1 ) cbr value is decided by moisture content and mudstone content of xigeda compounding filling. the filling material can satisfy minimum intensity standard of express highway when mudstone content is less than some fixed value, ( 2 ) this paper established field cbr standard value which can synthetically evaluate the filling material nature and field compaction degree. ( 3 ) the optimal compacting mean of xigeda compounding filling is hard oscillation first and weak oscillation later, not traditional way which is weak oscillation first and hard oscillation later. ( 4 ) this paper put forward the conception of optimum moisture content in construction different from optimum moisture content of indoor impaction
本文以昔格達填料強度特徵為研究對象，通過大量的室內及現場試驗，從昔格達地層巖組的物理力學性質、昔格達填料的物理性質入手，對昔格達填料的抗剪強度、室內承載比及現場承載比特徵進行了較系統地研究，獲得了如下認識及進展：昔格達混合填料承載比值受填料含水量及其中泥巖含量的影響，當泥巖含量小於一定值時，昔格達混合填料具有較高的承載比值，能夠滿足高速公路對填料的最低強度要求；建立了綜合評判昔格達填料性能及現場壓實效果的現場承載比（ cbr ）標準；對于昔格達填料而言，最佳的碾壓方式為先強振后弱振而不是傳統的先弱振后強振；提出了與室內擊實最優含水量相區別的施工最佳含水量的概念。Secondly, detailedly analyzing reasons inducing these problems, author finds it is that not thinking of the slope of pipeline and the friction in the process of producing water hammer pressure functions, but, thinking of the effect of the slope of pipeline in the process of producing the consequent water hammer calculative continuity function, which results in the inconsequent illogicality in the whole process of producing
接著，對這些問題存在的原因進行了詳細分析，發現在當前推導水擊壓強公式的過程中沒有考慮管道的傾斜度和摩擦阻力的影響，而在後面水擊計算的連續性方程的推導過程中則考慮了管道的傾斜度，這就導致了在當前連續性方程的整個推導過程中前後矛盾的不合理現象。The characteristics of high pressure gyratory sprayed pumping discusses is presented, which is applicable in wide range of scope and ground layers, convenient for construction, long durability, wide source of materials. mechanism for subgrade strengthening : complex foundation of cement solid and earth between piles was formed by pulsant load of flowing pressure and spraying flow, water wallop, cavitation phenomenon, water wedge effect, extrusion force and air flow agitation etc so as to enhance foundation bearing force and reduce settlement and deformation
高壓旋噴注漿技術具有適用范圍、適用地層較廣，施工方便，耐久性好，材料廣闊等特點；其加固地基機理主要是通過流動壓、噴射流的脈動負荷、水塊的沖擊力、空穴現象、水楔效應、擠壓力、氣流攪動等效應形成水泥固結體與樁間土的復合地基，從而提高地基承載力，減少沉降變形。But most prior discoveries of mammoth bones have involved fragments washed down during the prehistoric floods that repeatedly swept across the columbia basin at the end of the ice age
但是，考古學家表示，很多此前發現的猛獁象骨骼化石中含有史前洪水沖擊下來的碎片。冰河時代末期的哥倫比亞盆地曾屢次受到史前大洪水的沖擊。Ghg - electrical grade activated silica powder is produced by way of mingling on the basis of electrical grade silica powder. it has activt effect on surface & make silica powder mingled with resin, raise cohesive force between resin & silica powder, raise the water - resestance on the sunface and the compressive strength of pour object, reduce sediment, gradation & split, increase filler of silica powder, and replaced inpoted products on the producing line of imported dry type transfomer & high tension mutual induc tance equiment, it has been the best pouring insulate materual in electrical trade
電工級活性硅微粉是在電工級硅微粉的基礎上進行偶聯化處理而製成，具有表面活性作用，能使用硅微粉與樹脂發生交聯，提高樹脂與硅微粉的粘結力和界面增水性，提高澆注體抗沖擊強度，減少沉澱、分層、開裂現象，增加硅微粉的填充量，在引進的乾式變壓器、高壓互感器生產線上已成功地代替了進口產品，成為電工行業理想的環氧澆注絕緣材料。Discussions of blasting shock waves cutoff in shallow - layer water
淺層水中爆炸沖擊波切斷現象淺探If water hammer occured as the water is full, the steam pipeline, appurtenance, support should be checked. only when there is no abnormal condition observed, can the normal oparation resumed
若滿水時還出現水擊現象，則在恢復水位后，還應檢查蒸氣管道、附件、支架等，無異常時才恢復正常運行。This thesis regard internal property reorganization in the group of pangang as the research object, from chengdu seamless steel pipe limited liability company with chengdu iron and steel works inside exterior environment reorganizing in front and back commences, making use of to exceed the makel - bot with of five factors competition models and the method of factors analysis, after analyzing the reorganization of the business enterprise a profession for facing competes the situation. develop the development the business enterprise with the profession industry from the international local profession rival circumstance after analyzing the reorganization should the market position of the establishment with develop the strategy target. make use of the swot the analysis the method, to after the reorganization the development strategy of the business enterprise, from manage the angle proceeded the fixed position analyzes, for after the reorganization business enterprise development provided four kinds of developments strategy that eligibility choose : the brave development strategy, request the resources advantage, funds advantage, human resource advantage, technique advantage that new company make the most of new business enterprise in empress in reorganization, is an essential condition to increases to manage the level, quickly technique reforms, develop the high and additional worth product with new product production line, as soon as quikly change to strong and large business enterprise, realizes soon steel aircraft carrier dream ; dispersion strategy, the technology market quota with deal with produce high additional worth product, completely promote business enterprise brand image, extend high carry product of the exaltation product, is a necessary means to increases business enterprise performance, realizes business enterprise target ; defense strategy, adjusting the business enterprise organizes construction, reducing the intensive type in labor and the low additional worth product line, lower bad the property saves the deal, alleviating the business enterprise burden, attaining the casual wear go to battle, benefitting to the challenge that make frontal attack the rival ; withdraw strategy, compress the production of the high depletion and high cost product, simplify the production craft, controlling the cost of the end product in the lower level, is a valid path to increases business enterprise competition ability
本論文以攀鋼集團內部的資產重組為研究對象，從成都無縫鋼管有限責任公司與成都鋼鐵廠重組前後的內外部環境入手，運用邁克爾?波特的五力競爭模型及因素分析法，分析了重組后的企業所面臨的行業競爭態勢。從國際國內行業競爭對手情況和本行業發展動態分析了重組后企業應確立的市場地位和發展戰略目標。運用swot分析法，對重組后企業的發展戰略，從管理角度進行了定位分析，為重組后企業發展提供了可選擇的四種發展戰略：即大膽發展戰略，要求新公司充分運用重組后新企業的資源優勢，資金優勢，人力資源優勢，技術優勢，是提高管理水平，加快技術改造，開發高附加值產品和新產品生產線，盡快立於強勢企業之林，早日實現「鋼鐵航母」夢的必要條件；分散性戰略，提高產品的科技含量和生產高附加值的產品，全面提升企業品牌形象，擴大高端產品的市場份額，是提高企業效益，實現企業目標的必要手段；防禦性戰略，調整企業組織結構，削減勞動密集型和低附加值產品生產線，降低不良資產存量，減輕企業包袱，做到輕裝上陣，有利於迎擊競爭對手的挑戰；退出性戰略，壓縮高消耗、高成本產品的生產，降低低端產品的比例，精簡生產工藝，將最終產品的成本控制在較低水平，是提高企業競爭力的有效途徑。The illustration is by hand to express, quote from this literary reference of “ the head hangs the beam, the zhui stabs ” of ancient times, but the ancients cloud : " in the book there is gold house ", an monster is binding the hair to try very hard to studying on the ceiling, there is a large number of gold ingot in front of him, but his is die of have eyes fixed on this gold, still stay the exit water in mouth, take the irony meaning, deliver the deep province of person, attack current education system in china not perfect, the examination is hardly limited the student ' s imagination and creative ability
用手繪插畫的形式來表現，引用了古代「頭懸梁，錐刺股」的這一典故，而古人云： 「書中自有黃金屋」 ，一個怪人正把頭發綁在天花板上拚命讀書，在他面前的是一堆金錠，而他的眼睛正在死死的盯住這堆黃金，嘴裏還留出口水，帶有諷刺意義，發人深省，抨擊了中國現行的教育體制的不完善，功名考試極大的限制了學生的思維和想象力。Corresponding to the correct water hammer mathematic model ( 3 ), the character difference equation is by comparing the new mathematic model with the old mathematic model, the last calculative part of paper argues the falseness of the current water hammer mathematic model, makes use of the improved character line method to analyze the correct mathematic model ( 3 ), studies all kinds of facts " impact on water hammer pressure value and water hammer phenomenon attenuation, points out that, in the long pipeline system, the subarea calculation of head loss along with flow rather influences the calculative results of water hammer pressure, advices to take the subarea calculation of head loss along with flow into account in the water hammer calculation of the long pipeline system
對應于正確的水擊數學模型（ 3 ）的特徵差分方程形式如下c ，弓+吼川一c ，唱一幾弓扮幾rv另卜川= o幾代+吼川一幾唱一吼嶸{一c :腳丸}唱} ? 「本論文在最後的計算部分，通過對新老數學模型的數值計算比較，進一步論證了當前水擊數學模型的不正確性。並且應用改善了的特徵線法對正確的數學模型（ 3 ）進行了計算分析，研究了各種因素對水擊壓強值和水擊現象衰減的影響，指出在長管道系統中，沿程水頭損失的分區計算對水擊壓強的計算結果影響較大，建議在長管道系統的水擊計算中應按分區進行沿程水頭損失的計算。Numerical investigation on blast wave propagation and dynamic response of an explosion vessel
關于圓柱殼在水下爆炸沖擊波作用下二次加載現象的數值模擬研究A basin of water here. i want to hit a tuning fork and put it into the water. look carefully, what happened
教師演示實驗，出示一盆水和一音叉，敲擊音叉后將其放入水中，讓學生觀察現象並討論。T : a basin of water here. i want to hit a tuning fork and put it into the water. look carefully, what happened
教師演示實驗，出示一盆水和一音叉，敲擊音叉后將其放入水中，讓學生觀察現象並討論。The paper studied withstand voltage level, influence factors, breakdown process and breakdown mechanism of covered with snow or ice through some theory calculation results, many test data and phenomena. the paper got the conclusions that withstand voltage strength of insulator covered with snow or ice descended largely, and the amount of ice or snow build - up, number of flashover, string length, environment temperature and leak current etc had obvious effects on flashover voltage values of insulators
通過大量的試驗數據和現象研究冰雪條件下絕緣子的耐壓水平、影響因素及其擊穿機理，如串長的影響、環境溫度、絕緣子形狀及冰的干濕程度、閃絡次數、冠雪量和積冰量的影響、雪的密度、氣壓和濕度的影響等，並對試驗結果與理論分析結果進行了對比，分析其是否一致。Combining physical experiments and theoretical analysis, this literature has performed thorough research on gas properties of delivery pipeline system, pressure current rush to interception air - mass in pressure pipeline, water hammer with gas that happens with gas releasing and liquid column separating
本論文通過物理試驗與理論分析對輸水管道系統中的氣體特性、壓力水流沖擊截留氣團和包含氣體釋放和液柱分離現象的含氣水錘進行了深入研究。But, though considerable process has been made in the last ten years, digital watermarking is still in its infancy, and much interesting work remains to be done this thesis addresses some problems in the gray - scale image digital watermarking that are summarized below : 1 ) whereas the basic theory of digital watermarking is still very poor, a digital watermarking mathematic model based on imperceptibility and robustness is presented by analysising the characteristic of digital watermarking ; 2 ) based on the model constructed above, by defining the measures of capacity and robustness of digital watermarking, an objective method for evaluating the digital watermarking is introduced and used to analysis some algorithms ; 3 ) whereas geometric distortion always influences the restoration of watermark, we advocate to enhance the robustness against geometric distortion by restoring the image which has been distorted by geometric transformation, and a method is designed for estimating the parameters of geometric transformation ; 4 ) based on the conclusion discussed above, and combined with the masking effects of hvs, a novel public meaningful gray - scale image digital watermarking is designed by analysising the characteristics of image gray - scale interpolation and haar wavelet transformation. the experimental results show that the method is indeed powerful ; 5 ) whereas many image digital watermarking schemes, which embed watermark by modifying the values of pixels in spatial domain and transformed domain, are confronted with the conflict between the imperceptibility and robustness, we advocated to use some stable digital characteristics of host image as watermark and a algorithm based on hermite matrix is designed
本文重點對灰度圖象數字水印技術進行研究，主要工作如下： 1 ）鑒于目前數字水印的理論研究比較薄弱的現狀，本文通過分析數字水印的特點，建立了一個數字水印的數學模型，為進一步研究數字水印打下了基礎； 2 ）根據以上建立的模型，通過引入容量和穩健度的概念為數字水印提供了一個客觀評價方法，並對一些數字水印演算法進行了分析； 3 ）為增強數字水印抵抗幾何攻擊的能力，研究了受幾何攻擊的圖象的復原問題，並給出了一個計算圖象幾何變換參數的方法； 4 ）通過分析圖象灰度插值演算法和haar小波變換的特點，結合hvs的掩蔽效應，設計了一個公開的有意義數字水印演算法，實驗結果表明本演算法具有較強的穩健性； 5 ）目前許多水印演算法都是通過在空域或頻域修改象素值的方法嵌入水印的，這種方法面臨著透明性和穩健性的矛盾，為解決這個矛盾，本文提出以圖象的某些穩定的數字特徵為水印的觀點，並結合hermite矩陣的特點設計了相應的水印演算法，實驗結果表明該演算法具有較好的穩健性。And all words in every set can be classified into two types. then according to the different types of the words, the words in every set are embedded into two watermark groups in a specific watermark embedding way, and their contents are associated with embedded watermarks. so during watermarking detection, the action that the attacker deliberately distorts or modifies the watermarking feature by extracting watermarks consciously or not can be found easily, and the text integrity detection performance can also be enhanced
按此思路，對全文2字元以上的單詞將它們分為3個集合（即3層）並將之作為水印嵌入對象，而每層的所有單詞又區分為2類，對每層的單詞按一種水印嵌入方式嵌入2組（次）水印，而對單詞嵌入水印信息的時候根據其類別的不同以不同方法嵌入，使水印的嵌入與單詞內容相關，以利於水印檢測時能夠發現某些情況下攻擊者有意或無意地保留水印而對文本內容進行刻意篡改或者直接修改水印特徵的行為，以增強文本完整性檢測的性能。First, because pipelines are so complex that controlled object is high order, delay, coupling, nolinear and time - varing, it is difficult to realize closed loop control for it using valid mathematic model. to resolve this problem, the paper presents a fuzzy - pid control algorithm with self - adjusting regulation factor. second, if a moving motor supplied by inverter power is switched to be supplied by power supply, the impact of overload - voltage and overload - current appears
主要針對中、大容量供水系統中，由於供水管網鋪設復雜、彎管多、控制對象具有高階、滯后、耦合、非線性及參數時變的特點，難以利用有效的解析式數學模型進行閉環控制，以及多臺水泵並聯運行時，水泵電機由變頻電源供電向工頻電源供電切換過程中產生的過電壓過電流沖擊這兩個難題，提出了可調整因子fuzzy - pid控制演算法及利用鎖相環控制實現水泵電機由變頻電源向工頻電源的同頻同相平滑切換。And hits the floodgate engine off in view of the jiaozuo power plant # 6 unit after the boiler fire fighting, has the condensing water to eliminate the abnormal phenomenon many times which the oxygen pipeline hits to carry on the diagnosis and processing
針對焦作電廠# 6機組在鍋爐滅火和打閘停機后，多次發生凝結水至除氧器管道撞擊的異常現象進行診斷及處理。分享友人