混響衰減 的英文怎麼說
中文拼音 [húnxiǎngshuāijiǎn]
混響衰減
英文
reverberation damping-
The investigation of a lot of parameters about treated sandstone, brick materials and earthen materials with fluorited polymers has been carried out, such as the formation of polymer, the penetration depth, porosity, capillary absorption and penetration coefficient, water uptake, compressive strength, drilling resistance, absorption isotherms of water vapor, water vapor diffusion, color changes as well as resistance to desegregation of water, frizzing - throwing cycles, worming - cooling cycles, and so on. in addition, the influence of salt crystallization, acid and base, and uv aging have also been assessed in order to better understand the protection effects and utilization possibility of two fluorinated polymers, mainly according to astm standard and the combination of international methods together with general technological
分別以國家級文物保護單位的土質、砂巖和磚材文物樣品為對象，依據astm標準及國際通用文物保護研究方法與評估準則相結合，通過膠化物形成周期、滲透深度、孔隙度、毛細吸水和滲透系數、持水量、抗壓強度、抗鉆強度、吸附水蒸氣的能力、透氣性、外觀顏色等系列參數的測定，及凍融、冷熱循環、酸堿腐蝕后抗壓強度的衰減、可溶鹽對保護效果的影響、酸堿及光照對表面保護效果的影響，對兩種含氟聚合物及其與有機硅的共混物在文物加固保護和表面防護中的可行性和保護效果給予了系統研究。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。Fourthly, with the finite element program, the author analyzes the relationship between the load magnitude or frequency and range of breakage or pore pressure. this can provide appropriate parameters for the method of vibrating grouting. fifthly, adopting the compressible porous medium, the author adduced dynamic theory of liquid saturated porous medium to analyze the displacement and force in the sand when there is dynamic load below the earth surface
基於連續介質力學的混合物理論建立的多孔介質理論和動力控制方程，假設砂土滿足各向同性並處于彈性小應變狀態，豎向振動力將在飽和砂土內部產生三種波，分析了這些波的彌散曲線和特徵衰減曲線，從波傳播的角度，研究了振動力參數和土性參數對振動范圍的影響。Cable assemblies, cables, connectors and passive microwave components - screening attenuation measurement by the reverberation chamber method
電纜組件電纜連接器和無源微波元件.用混響室法測量濾屏衰減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。Firstly, each single factor ( concrete carbonation, steel bar corrosion materials strength ) related the resisting forces of rc bridges is considered in this paper. then a resisting force model for multiple factors is created based on two types of steel bar corrosion : general and localized corrosion models
本文首先考慮混凝土碳化、鋼筋銹蝕、材料強度等單因素對橋梁結構抗力衰減的影響，然後在此基礎上建立多因素綜合作用下的結構抗力衰減模型。Average intensity is one of the physical parameters which are used to describe the oceanic reverberation and the researches about it had been carried out a long time before. but not thoroughly yet
平均強度是描述海洋混響的一個重要物理量，很早就有人對其衰減規律進行研究，但至今還沒有得到完滿的結果。Based on the fatigue test for flexural performance of reinforced concrete beam strengthened with aramid fiber reinforced plastic ( afrp ), the effect of fiber layers on the fatigue test performance of the strengthened beam was analyzed according to the strain cycling curve of steel and the stiffness reduction regularity of the beams
摘要通過芳綸纖維加固鋼筋混凝土梁的疲勞試驗，得到了鋼筋的應變滯回曲線和加固構件的抗彎剛度隨循環次數衰減的規律，探討了芳綸纖維布層數對加固構件疲勞性能的影響。The bistatic average intensity firstly rises wt time to a top point, then it goes down, and the decaying rule is close to the monostatic reverberation intensity ap ) j { jgj : 8kq @ f9tt & z decaying rule, but reverbefation intensity will be closely related to the relative site of the transducers
收發分置時的混響平均強度隨時間的變化先是增加，到一個極大值時再隨時間的變化而有規律地減小，其衰減規律與收發合置混響強度衰減規律一致，其強弱與接收水聽器所處位置有關。In this thesis, some useful rules for average reverberation intensity decaying are given basing on the work which have been done by other researchers
本文就是在前人工作的基礎上對淺海海洋混響平均強度衰減規律進行了一些有益的改進。The sound speed profile is another important factor, the bigger sound speed gradient, the faster reverberation intensity decay and the other factor to the reverberation intensity decaying is sea floor inclination, the greater the slope angle, the slower reverberation intensity decav
其次，對混響強度影響的第二大因素是聲速梯度，聲速梯度越大，混響強度衰減越快。第三，海底傾斜角也會影響海洋混響的衰減，海底傾斜角越大，混響平均強度衰減越慢。The resistance attenuation of each element is considered in the design process, and the statistical parameters of the elements are assumed to be the same as the investigated results of china. in the process of the calculating of the element reliability attenuation in expected service life, several load combination and different load ratio of dead load to live load are considered. in order to ensure that structure reliability in expected service life satisfies the requirement of today ’ s code, a method of choosing the initial reliability index of structure basing on the length of expected service life and the structure resistance attenuation is proposed and the corresponding durability reduction factor is chosen by an optimum algorithm
根據我國現行建築結構可靠度設計原理，考慮耐久性退化影響因素，設計了抗力統計參數與我國調查結果一致的五種代表性鋼筋混凝土構件，考慮多種荷載效應組合以及不同荷載效應比，研究了不同使用期內代表性構件的可靠度變化規律;為保證預期使用期內結構可靠度水平仍可滿足現行規范要求，提出了根據預期使用期和抗力衰減幅度確定結構設計可靠度指標的方法，並通過優化的方法確定了預期使用期內的耐久性折減系數，給出了預期使用期結構可靠度設計的實用設計方法。分享友人