混響層 的英文怎麼說

中文拼音 [húnxiǎngcéng]
混響層 英文
reverberation layer
  • 混 : 混形容詞1. （渾濁） muddy; turbid2. （糊塗; 不明事理） foolish; stupid
  • 層 : i 量詞1 （用於重疊、積累的東西 如樓層、階層、地層） storey; tier; stratum 2 （用於可以分項分步的...
  1. Using cd, cu, zn and cr as experimental toxicants and crucian as experimental creature, we employed the environmental biotechniques ( flame atomic absorption spectrophotometry, the method of improved pyrogallol autoxidation and electron microscopy ) to study the acute toxicity and secure concentrations of heavy metals to crucian ; the accumulation and distribution of mixed heavy metals to fingling crucian ; the activities of superoxide dismutase ( sod ) of gill and liver tissues and the hispathological and ultrastructural change of superfine structure of liver and kidney of crucian after cadmium exposure. through which, we intended to fully and systemically study the toxic influence of heavy metals to fish, and preliminarily discuss the influence of heavy metals pollution to the diversified level of fish such as individual, organ, tissue, cell and molecule. thus we tried to provide scientific evidence to establish preventative management measures, avoid and relieve the harm of heavy metals pollution to aquicolous ecosystem in time

    隨后以這幾種重金屬作為實驗毒物，以鯽魚為實驗動物，應用環境生物技術、火焰原子吸收分光光度法、鄰苯三酚自氧化法、透射電鏡等技術研究了重金屬cu 、 zn 、 cd和cr對鯽魚的急性毒性及其安全濃度評價、混合重金屬在鯽魚幼體組織內的積累和分佈、 cd對鯽魚鰓和肝臟中sod活性的影響、 cd對鯽魚肝細胞和腎細胞超微結構的影響等，全面和系統地研究了水環境中重金屬暴露對魚類的毒性影響，初步探討了重金屬污染對魚類的個體? ?器官? ?組織? ?細胞? ?分子等各水平層次的影響，為制定漁業生產上預防性的管理措施提供科學依據，及時避免或減輕重金屬污染對水生生態系統造成的損害。
  2. The present work indicates the organic nf membranes and the inorganic nf membranes all have shortages, so develop composite nf membranes that have low cost, mechanically strong and thermally / chemically - resistant, easy to cleanout and good performances is a very important task. in this paper, the preparation of inorganic - organic composite nf membranes were presented. this composite comprise a porous sio2 / al2o3 support substrate, the pore diameters of which ranging from 10 to 15 nm, this inorganic support substrate having a polymer membrane which comprises an polyvinyl alcohol ( pva ) or polyamide ( pa ) densely deposited on at least one of the face surfaces thereof, the structural porosity of such pva and pa membrane ranging from 3 to 5 nm

    本論文以開發無機?有機復合納濾膜為出發點，首先在al _ 2o _ 3多孔微濾膜上利用溶膠?凝膠法制備sio _ 2 al _ 2o _ 3無機復合超濾膜作為無機?有機復合納濾膜的基膜；選用聚乙烯醇和聚酰胺為表面功能層材料，分別探討了以羥基丁二酸和磺基水楊酸為混合交聯劑，採用浸塗法制備了聚乙烯醇sio _ 2 ? al _ 2o _ 3復合納濾膜；以均苯二甲酰氯、哌嗪和二胺為單體，採用界面聚合法制備了聚酰胺sio _ 2 ? al _ 2o _ 3復合納濾膜，並對影響膜性能的諸多因素進行系統研究。
  3. Based on the past results, seismic behavior of r. c. frame structure with special - shaped column is studied, according to the members to the structure in sequence in this paper. the main contents are as follows aspects : first of all, aiming at the characteristics of special - shaped column, various control parameters including allowable value of drift angle, axial load ratio etc, are studied

    本文在前人研究成果的基礎之上，就鋼筋混凝土異形柱框架結構的抗震性能，按照從構件到結構的順序展開研究，主要內容如下：第一，針對異形柱的特點，對影響結構抗震性能的主要參數，如層間位移角、軸壓比等進行研究。
  4. A one - dimensional oceanic mixed layer model with the m - y level - 2. 5 turbulence closure schemes is employed. the rate of energy loss by breaking waves is estimated by parameterization and incorporated into the model as a source of turbulence kinetic energy ( tke ) by modifying the existing surface boundary condition of tke equation. the velocity field and turbulence energy budget are calculated under different forcing conditions ( the results given below are for a wind speed of 20 m / s. )

    採用一維2 . 5階湍封閉混合層模式，根據參數化方法對波浪破碎導致的能量耗散率進行了估計，通過改變湍動能方程的上邊界條件引入波浪破碎對湍動能生成的影響，計算了不同風應力強迫下的混合層流場結構和湍能量收支（下述給出的結果是取風速為20m s得到的） 。
  5. 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。
  6. By physiognomy feature, it could be divided into three types of thermal structure : positive dome model, negative collapse model and border dome core collapse model. based on the depth degree or magma - thermal influenced, it could be divided into five types of thermal structure : ( ancient ) geothermal anomaly focus region model, superficial volcano eruption hydro - thermalism and hypabyssal intrusive model, thermal anticline ( thermal dome ) model, mid - deep intrusive model, deep mantle ( crust ) thermal plume model ; and put forward a perfect model of the thermal structure. there are many interaction system could be induced into a systematic thermal interaction, include : ocean - continent system, basin - mountain interaction, superficial and mid - deep crust - mantle interaction, crust - mantle commingle interaction, vertical thermal interaction ( delamination ) etc.

    依據地貌形態分為三類：正向穹窿型、負向塌陷型、邊隆核陷型：依據巖漿-熱力作用影響的深淺程度或深度分為五類： （古）地熱異常群集區、表淺層火山噴發-熱液活動與淺成侵入型、熱力背斜（熱穹窿） 、中深層侵入型、深部地幔（地殼）熱柱型；提出了熱力構造作用空間分佈的理想模式，將洋陸系統、盆山作用、淺表與中深部殼幔作用、殼幔混合、垂向熱力作用（拆沉）等納入一個整體統一的熱力作用系統中，為盆地動力學研究打開了一個新窗口；研討了熱力構造研究方法。
  7. When the effect of surface wave breaking is considered, mld is 50 cm deeper than that obtained without wave breaking, and with the enhancement of wind stress forcing, the deepening of mld is increased

    模擬結果表明，當考慮波浪破碎的影響時，混合層深度比無波浪影響時的結果加深了約50cm ；隨著風應力作用的增加，波浪破碎加強了混合層中的湍流混合，促使加深幅度也增加。
  8. Secondly, the effect of thermocline to the intensity decaying rule for monostatic case is analysed

    然後分析了聲速躍變層對海洋混響平均強度衰減的影響。
  9. In the paper, not only such factors as reinforcing steel bar, various placing temperature of concrete in case of lift placements, lift thickness, time interval between lifts, the variation of elastic modules of concrete, heat of hydration, the temperature changes of environment but the effect of creep deformation and autogenous volume change on the temperature field and thermal stress field of reinforced concrete face - slab are considered

    本論文在分析中，考慮了鋼筋、混凝土分層澆築、入倉溫度、澆築層厚、施工間歇、混凝土彈性模量變化、水化熱發散規律、外界氣溫等因素的變化及混凝土徐變和自生體積變形等因素對面板溫度場和溫度應力的影響。
  10. In the program, the effect of lamination placement, construction interval, elastic modulus change, thermal insulation change, surrounding temperature change, concrete creep and autogenous volume change on thermal stress are considered. and such temperature control measurement as water pipe cooling, heat preservation of the dam surface, the pouring temperature control, the overflow across the dam top during flood season can also be simulated by numerical method

    該程序在編制過程中考慮了混凝土分層澆築、施工間歇、彈模變化、絕熱溫升過程、環境溫度的變化、混凝土徐變、自生體積變形等因素對壩體溫度場及溫度應力場的影響，同時也考慮了水管冷卻、壩體表面保溫、控制澆築溫度、施工汛期壩頂面過水等各種溫控措施的數值模擬。
  11. In this article, according to heat conduction theory, elastic creep theory and finite element theory, the temperature field and creep stress field in the arch dam during construction and operation are simulated and analyzed by means of three dimensional finite element relocating mesh method, and the distribution law of the temperature field and creep stress field in the arch dam during construction and operation are systematically studied, and according to the construction process of concrete arch dam, the effect of lamination placement, construction interval, elastic modulus change, thermal insulation change, surrounding temperature change, concrete creep and autogenous volume change on thermal stress in the arch dam are also considered

    論文根據熱傳導理論、彈性徐變理論及有限元理論，用三維有限元浮動網格法對拱壩施工期和運行期溫度場、徐變應力場進行了全過程模擬分析，較為系統的研究了混凝土拱壩施工期和運行期溫度場、徐變應力場的分佈規律，在分析中按照混凝土拱壩施工過程，考慮了混凝土分層澆築、施工間隙時間、彈模變化、絕熱溫升過程、環境溫度的變化、混凝土徐變、自生體積變形等因素對壩體溫度應力的影響。
  12. In computation the effect of thermal insulation, elastic modulus, creep degree and autogenous volume change along with age, the progress of pouring by layer, work suspension in summer, the change of air temperature, heat preservation, water cooling, and water storage, by stages on temperature field are considered

    計算中考慮了混凝土的絕熱溫升、彈性模量、徐變度和自生體積變形隨齡期的變化以及分層澆築、夏季停工、外界氣溫變化、表面保溫、通水冷卻及分期蓄水等因素對壩體溫度應力場的影響。
  13. The equal density and pressure of free streams are chosen to study the effect of compressibility on the mixing layer

    計算選取來流密度和壓力相等，對流馬赫數從0 . 2到1 . 2 ，以研究壓縮性對混合層流動的影響。
  14. Furthermore, because of the scarcity of measurements and data, our work has to be limited to investigating the effect of wave breaking on the ocean surface mixed layer by the numerical models

    同時，由於無法獲得觀測資料，本文所得的波浪破碎對海洋上混合層影響的數值研究結果沒能與現場觀測結果比較。
  15. When the temperature is uniform within the mixed layer, a thermocline appears at the bottom of this layer, and when the effect of surface wave breaking is considered, the temperature is 0. 013 ? lower than the result without wave breaking

    當混合層內溫度分佈均勻時，在混合層底部形成一溫度躍層，並且考慮波浪破碎影響時，混合層內的溫度比無波浪影響時均勻分佈的溫度降低了0 . 013 。
  16. First, the formula for average intensity of ocean reverberation is deduced on the basis of ray theon " for monostatic case, then it is proved by computer simulation and experiment data

    本文首先從分層介質的射線理論出發導出傾斜海底收發合置淺海近程海洋混響平均強度的近似表達式，並對其進行數值分析與實驗驗證。
  17. Particle dispersion affected by turbulent coherent structures in a three - dimensional mixing layer

    三維混合層中湍流擬序結構對顆粒擴散的影響
  18. The global mlp neural network with 3 layers and the local linear polynomial map with first order are used to model the reverberation sequence

    本文分別用三層mlp神經網路和線性一階映射多項式對混響進行全局非線性建模和局部線性建模及預測性能分析。
  19. The thermocline causes omittable effect on the intensity decaying speed. but the site of hydrophone affects the reverberation intensity when hydrophone lies upper than the thermocline, the reverberation intensity is greater than when there is no thermocline, and vice versa. at last, the average intensity of reverberation for bistatic case had been deduced

    發射聲源與水聽器在聲速躍變層上方時，水聽器接收到的混響強度比無聲速梯度時接收到的混響強度大；發射聲源與水聽器在聲速躍變層下方時，水聽器接收到的混響強度比無聲速梯度時接收到的混響強度小。
  20. The understanding of the effects of atmospheric forcings, including mainly the surface wind stress, net heat flux and buoyant flux, on the dynamical and thermal structure of the ocean surface mixed layer necessitates a proper knowledge of the mechanisms and influences of the different turbulent mixing processes involved in the upper ocean

    海洋上混合層的動力學和熱力學結構特徵主要受到海表風應力、凈熱通量和浮力通量的影響，而混合層的形成與維持依賴于混合層內的湍流生成和湍流垂向混合。
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