混合衰變 的英文怎麼說
中文拼音 [húngěshuāibiàn]
混合衰變
英文
complex decay-
On the basis of drawing lessons from the existing research results both at home and abroad, this paper observes the change law of the two financial indexes of nroa and croa from 1997 to 2001, studies the relations between the locations of listed companies and the m & a performance, between the structure of equity of listed companies and the m & a performance, between the industry nature of the listed companies and the m & a performance, between the type of m & a and the m & a performance, and then draws several conclusions that m & a performance is unsatisfactory on the whole, m & a performance of listed companies in eastern china is superior to that of the counterpart in middle or western china, m & a performance of listed companies that the country or the other corporations hold the most share of the listed companies is unsatisfactory on the whole, the growing or mature listed companies can achieve best m & a performance when they implement the m & a horizontally while the listed companies in declining phase may perform the conglomerate m & a the best
在借鑒國內外已有的研究成果的基礎上，本文考察了並購上市公司從1997年到2001年五年時間內凈資產收益率和主營利潤率兩項財務指標的變化規律，研究了並購公司所在的區域與並購績效、並購公司的股權結構與並購績效、並購公司的產業性質與並購績效、並購類型與並購績效等方面的關系，得出了若干結論： 1 、並購績效從總體上來說是不理想的； 2 、東部上市公司的並購績效要優于中部和西部上市公司的並購績效； 3 、國家股或法人股是第一大股東的上市公司的並購績效不理想； 4 、處于成長性產業和成熟性產業的上市公司發生橫向並購績效最好，處于衰退性產業的上市公司發生混合併購績效最好。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。From the point of kinematics and dynamics, the author analyses the propagation rules of stress waves in concrete, namely time - space relations, wave amplitude attenuation, dispersion effect and characteristics of transmission of reflected waves and acoustic waves. combining with engineering practices, the author also concluded the main points of low strain detection of integrity of longdiameter underwater cast - in - situ piles, and pointed out that comprehensive and relational utilization of reflected waves method and acoustic wave transmission method can accurately evaluated the integrity of pile shaft and then improve the reliability of detection. 6figs., 3refs
從運動學和動力學角度，分析應力波在混凝土中的傳播規律：時空關系、波幅衰減、頻散作用以及反射波與聲波透射的特點，結合工程實踐，總結大直徑水下灌注樁低應變檢測的工作要點，指出綜合、合理運用反射波法與聲波透射法，可以較準確地評價樁身完整性，提高檢測結果的可靠性.圖6 ，參3The 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。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