水底混響 的英文怎麼說
中文拼音 [shuǐdehúnxiǎng]
水底混響
英文
water-bottom reverberation-
The sensor exhibits a linear response to c3 in the concentration range 6. 5ng / ml to 75ng / ml, correlation coefficient 0. 973. 4 ) a novel enzyme - link fluoroimmunoassay system using 2 - chloro - 10 - [ 3 - ( 4 - methyl - l - piperazinyl ) propyl ] 10h - phenothiazine ( prochlorperazine ) as substrate to determine the goat anti - igg was developed by using polystyrene ( ps ) as carrier. the hrp - labled goat anti - igg can catalyze the oxidation of prochlorperazine to cause the increasing of fluorescence
4 ）以聚苯乙烯（ ps ）製成史持體，通過疏水性非特異吸附將igg固定在其表面，然後與gaigg和酶標gaigg進行競爭免疫反應，以雙氧水和甲哌氯丙嗪混合溶液為熒光底液，通過測定395nm處熒光增強的多少來測定gaigg的濃度，熒光響應與gaigg濃度在2n留ml到60n留ml之間呈準線性關系。We used this water - soluble cationic polyelectrolyte pei as a soft cushion for biomimetic membranes in this chapter, and studied the microstructure of polymer - cushioned pure binary and trinary mixed lb and ls films of dimyristoyl phosphatidyicholine ( dmpc ). cholesterol ( chol ) and sphingomylin ( sph ) ( that is to say study the influence of pei cushion on the microstructure of the monolayers ) deposited from looppm pei water solution subphase by - a isotherms and tapping mode atomic force microscopy
在本章中我們用這種極易溶於水的陽離子型聚合物pei為一軟墊，研究以此軟墊為基底的不同生物分子和它們不同種二元及三元混合單分子膜體系在含pei亞相上的相結構情況，初步的討論了它們以雲母為基底的is膜和lb膜的微結構或者說是該軟墊對單分子膜微結構的影響。Analysis for the product hydration process of natural maintenance show tailings and quartz sand surface is advantage for the major influence of hydration outcome in jing pei generate " base role ", do not participate in chemical reaction basically, while steam temperature and pressure for hydration structure and form of low silicon - tailings aerocrete have obvious influence, it is why the compressive strength of two products have obvious difference
對自然養護的製品水化過程分析的研究表明，尾礦和石英砂表面對於水化產物的主要影響是利於晶胚生成的「基底作用」 ，基本不參與化學反應，而蒸壓溫度和壓力對低硅尾礦加氣混凝土水化產物的結構、形態有著明顯的影響，導致兩種製品的抗壓強度有明顯差別。This thesis investigated and researched on non - loaded crack, especially those caused by thermal - shrink, and analyzed the thermal - shrink stress of beam, slab and continuous - wall, found that according data of civil and overseas offered thermal - shrink calculating formula without considering effect of factors, such as the cement quantity, using of aruhuesiru, aggregate size and quantity of sand, which made the result data smaller. in addition, there are not enough construct measure in code
本文對非荷載裂縫，特別是溫度?收縮裂縫進行了調查研究，並對兩端或四周約束的梁、板和底部約束的地下連續墻進行了收縮應力分析，發現國內外有關文獻給出的收縮計算公式沒有考慮泵送商品混凝土的水泥用量、外加劑使用、骨料粒徑和砂用量等因素的影響，計算出的混凝土收縮量往往偏小；另外， 《規范》中針對溫度?收縮裂縫的構造措施不足。Through the research and analysis on the three aspects concerning the base interface of the pavement panel, crack accumulation, expansion in the pavement panel and interaction between spring plates on the road surface as well as its damage on the road fatigue, it is first brought forth that the process of fissures and breakage in the cement concrete pavement can be divided into three stages, i. e. stage of initial crack formation and damage in the bottom of the pavement slab, stage of accumulation, intensifying & expansion in ruptures from load during the time of use and stage of fissures & breakage in the pavement
通過對路面板底界面開裂、路面板中裂縫積聚、擴展和路面表面車板相互作用及其對路面疲勞破壞的影響等三個層面的研究和分析，首次提出水泥混凝土路面的開裂和破壞過程可以分為三個階段，即路面板底初始損傷西南交通大學博士研究生學位論文第11頁和早期裂縫的形成階段、使用期間荷載作用對路面造成的開裂損傷累計、加劇和裂縫擴展階段以及路面斷裂破壞階段。In this thesis, first, reasons and factors for the stability of loose rock dams were summarized according to the field surveys and certain expert ' s experiences. then, researches on block stability problems were reviewed, and according to the relationship between grain size and incipient velocity, it is found that the block weight is in direct proportion to 6 - 9 power of incipient velocity, and 50 % increase of the velocity will result in about 40 times change of the block weight. after that, experiments were conducted in a flume, focusing on the relationship between incipient velocity and some main factors including block weight, water depth over the dam, cross - section size, block material and river bed material
本文首先根據散拋石壩損毀情況的現場調查資料，結合有關專家多年的整治經驗，總結出壩體的損毀原因及影響因素；對現有塊體穩定性的研究成果進行回顧和總結，並針對散拋石壩的直接損毀現象，結合山區河流的水流、地形特點，利用塊體粒徑與起動流速的關系，提出塊體穩定重量與起動流速高次方成正比的概念，流速50的增長可能導致塊體穩定重量接近40倍的變化；通過二維變坡水槽試驗，研究了壩體穩定的主要影響因素，包括塊體重量、壩頂水深、斷面尺寸、塊體材料（塊石和卵石兩種） 、護底等，結果表明對于山區河流，試圖僅僅通過增加壩體單個塊體重量或斷面尺寸來提高壩體穩定性效果甚微；最後，根據西部地區的自然、經濟、交通等條件，提出可以採用柔性混凝土鉸鏈體等一類整體性較好的護面層作為散拋石壩的防沖毀措施，以期取得良好的工程效果。According to the documentation collected from domestic and abroad wang wei dong who works in huadong architect and structure institute utilizes the similar work property between the underground continuous wall and pile subjected the vertical loads, and introduces poulos method of elasticity and plastic which applies to pile foundation into the calculation for subsidence of underground continuous wall. pujialiu and yu yuzhou from water and electronic engineering of qinghua university, according to the result of three axes, define the concrete parameter utilize the model of non - linear e - b combined with the design cross section of dam in xiaolangdi, yellow river accept the total stress programme of thepd dam, and we analyze the stress and displacement of plastic concrete diaphragm wall by finite element method in comparison with the result of common concrete one. at same time, we consider the effect of the character of plastic concrete diaphragm wall which is composed of different gradients and adopting the level of stress and pulling stress infers whether the plastic concrete diaphragm wall is safe or not
地下連續墻是一種歷史較短的施工方法，目前，砼防滲墻的設計還是以傳統的設計方法為主，根據查找國內外文獻資料，華東建築設計院王衛東利用地下連續墻與樁在豎向荷載作用下的工作性能有相似性，將適用於樁基的poulos彈性理論引入對地下連續墻的沉降計算中；清華大學水利水電工程系濮家騮、于玉貞根據三軸試驗結果確定混凝土的參數，利用非線性e - b模型，結合黃河小浪底土石壩設計剖面，採用thepd土石壩總應力程序，對深覆蓋層塑性混凝土防滲墻的應力、位移進行有限元分析，並與普通混凝土防滲墻計算結果加以對比，同時分析了不同配比塑性混凝土特性的影響，並採用應力水平和拉應力數值來判斷塑性混凝土防滲墻的安全程度。Lt is obvious that the decaying rule of average reverberation intensity is affected by scattering coefficient of sea floor, sound speed profile, inclination of bottom etc. the sea floor scattering function is the most importan factor to the intensity decaying rule
結果表明：海底散射方向性指數因子、海水聲速梯度、海底傾斜角等對海洋混響平均強度的衰減皆有影響。海底散射方向性指數因子對其影響最大，即適當選取海底散射模型是淺海近程混響建模的首要因素。On systematic analysis of engineering property of the aeolian sand, we choose cement stabilized aeolian sand, cement stabilized mixture of aeolian sand and soil, lime - fly ash stabilized aeolian sand, lime stabilized mixture of aeolian sand and soil and lime - cement stabilized mixture of aeolian sand and soil as object of research. on the base of the determination and analysis of temperature contraction property, aridity resistance property and strength of the stabilized aeolian sand mixture, this paper mainly analyses influential factors and inherent law of property about the stabilized aeolian sand mixture, and provides scientific foundation for the using of aeolian sand as paving material
本文在系統分析風積沙工程特性的前提下，以水泥穩定風積沙、水泥穩定混合沙土、石灰穩定混合沙土、石灰粉煤灰穩定風積沙和水泥石灰穩定混合沙土作為底基層材料研究對象，在對其溫縮、干縮以及強度和模量等性能指標的測試、分析的基礎上，研究分析了這些穩定風積沙混合料各性能的影響因素和內在規律，為風積沙用作沙漠地區公路路面材料提供了科學依據。4 ) three - dimensional nonlinear analysis of the bottom outlet of the xiao wan arch dam is presented using sub - model techniques. the structural characteristics and failure mechanism of the bottom outlet, under loading of concrete deadweight, hydraulic pressure, internal water pressure and temperature are studied. it is shown that the meshing of the structure becomes easy and the computing time is reduced by using sub - modeling method
4 ）對小灣拱壩的1 ~ #底孔進行了三維非線性分析，研究了孔口在壩體自重、庫水壓力、孔內水壓力和庫水溫度影響等作用下的孔口應力分佈、混凝土開裂、裂縫發展規律以及配筋對孔口開裂和裂縫擴展的影響。分享友人