We discuss the mechanism of wave beam forming for the phase array vibrators, give a definition of the marginal energy density for the seismic wave field, and make some quantitative analyses to the energy intensity along each direction on the snapshot of the wave field.

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By comprehensively using the information of lithostratigraphy, paleobiology, isotope, paleomagnetism, fission track of apatite, well-logging, geophysics and petroleum geology, the characteristics of the sedimentary wave processes in the Tazhong uplift, North depression and the Tabei uplift were studied by the wave process analysis method under the direction of the wave theory of the earth's crust movement in this paper, and the main achievements are as follows

本文以地殼波狀運(yùn)動(dòng)理論為指導(dǎo)，綜合利用巖石地層人人操,人人摸97、古生物欧美永久、同位素、古地磁三级片毛片免费看、磷灰石裂變徑跡A片在线观看,、測(cè)井、地球物理欧美三级片一区、石油地質(zhì)等方面的資料亚洲女人黄色性生活视频，運(yùn)用沉積波動(dòng)過(guò)程的研究方法，研究了塔里木盆地環(huán)滿加爾地區(qū)(塔中隆起帶人人操2018，北部坳陷和塔北隆起)的沉積波動(dòng)特征HEZYO在线爆乳。

It is found that in the STCC the amplitude of the Rossby wave, corresponding to the SSHA oscillation with period of 70～210 days, increases when the wave propagates westward, and the amplitude is the largest in east of Taiwan. In HLCC, the amplitude of Rossby wave with period of 70～210 days doesn't increase when the wavepropagates westward.

發(fā)現(xiàn)在這兩支向東的逆流區(qū)Rossby波的特性不同：副熱帶逆流區(qū)70～210天周期振蕩對(duì)應(yīng)的Rossby波西傳過(guò)程中增幅，在臺(tái)灣以東振幅達(dá)到最大性欧美办公室在线看片网；而在夏威夷背風(fēng)逆流區(qū)国产视频91拍拍阴口，70～210天周期Rossby波在西傳過(guò)程中不出現(xiàn)增幅現(xiàn)象。

Depending on the character of Lamb wave propagation , thedamage scat tering signals were time reversed and reemit ted to the damage , and then they will arrive at the damage synchronously so that the damage scat tering signal caught again will be amplified. Details about the time reversal amplifying process were analyzed and given. Based on the focalization ability of time reversal theory to the wave origin , the wave propagation was rebuilt by an image method which displays the damage as the focusing point .

根據(jù)信號(hào)傳播自身的特性最新国外哟哟aⅴ网站，研究采用時(shí)間反轉(zhuǎn)聚焦方法使損傷散射信號(hào)能量疊加放大A一级特黄大片强奷全过程，從而提高信號(hào)的信噪比3WWW日本视频，分析給出了具體的損傷信號(hào)時(shí)間反轉(zhuǎn)聚焦增強(qiáng)過(guò)程小说区图片；利用時(shí)間反轉(zhuǎn)法對(duì)波源的自適應(yīng)聚焦能力，重建信號(hào)傳播波動(dòng)圖99九九精品免费视频观看，通過(guò)信號(hào)聚焦顯示損傷位置和區(qū)域一级a爱做片无码免费手机在线。

It is thought that the channel bay line evolution processes can be divided into four stages. The first stage is soon of the sea level stable when the bayhead mountines are eroded and developed abrasion geomorphy and the productive materials were transport into the bay deposition by the tidal current and wave current and were reworked into gravel dams. The second stage is characterized by the fluvial output sediments and eroded sediments mixed deposition in channel bay and developed marine accumulation plain and sand riges in the plain under the wave reworked. The third stage developed clay silt marine accumulation plain under the action of the channel current and the wave action is very limited. The fourth stage is marked by human being reclaim which result in the channel bay filled and evoluted into a strait arce coast.

文章認(rèn)為，峽道海灣的充填經(jīng)歷了四個(gè)階段高h视频一区，第一階段以峽道海灣灣頂山體在波浪作用下產(chǎn)生的侵蝕物質(zhì)充填為主久久午夜精品A级毛片，發(fā)育了海蝕崖、海蝕洞、海蝕穴等侵蝕地形和灣頂砂礫石堤等堆積地形交替的峽道灣頂?shù)孛踩蘸只粕悠担诙A段以河流輸出物質(zhì)和峽道灣島嶼国产剧情在线一区、礁石侵蝕物質(zhì)在潮流作用下向峽道灣輸運(yùn)，由潮流和波流共同沉積為特征人人搞人人插人人看，發(fā)育海積平原色哟哟·com，部分粗顆粒泥沙在波浪的改造峽，發(fā)育平原沙堤一级一a无码黄在线观看，第三階段以河流輸出物質(zhì)為主国产在线精品专区第1页，在漲落潮流搬運(yùn)下進(jìn)入峽道和峽道灣沉積，在峽道灣中發(fā)育以淤泥質(zhì)粉砂為主要物質(zhì)的海積平原人人爽人人爽人人爽人人爽，第四階段以人類圍涂造田為標(biāo)志免费高清黄网站视频在线，加速峽道灣的充填過(guò)程，使峽道海灣最終趨于夷平99机这里只有精品，形成順直均衡的弧形海岸国产亚洲综合无码一区二区91。

In the meantime, the peak value of structure resonance contributes little to the response. The distribution of vertical displacement and wave bending moment of transverse section, which is along the direction of the floating structure length, appears unsymmetrical character. According to the wave scatter diagram of BI sea area of northwest pacific, which is in fairly calm condition, the amplitude values of long term prediction of wave bending moment in midsection and deck bending stress are quite large.

根據(jù)西北太平洋B1海區(qū)波浪散布圖計(jì)算的波浪彎矩和舯剖面甲板彎曲應(yīng)力的長(zhǎng)期預(yù)報(bào)值是相當(dāng)高的，日本的箱式浮動(dòng)機(jī)場(chǎng)的概念設(shè)計(jì)中www.在线毛片，浮體結(jié)構(gòu)設(shè)置在離岸很近的平靜水域且外圍設(shè)置了防波堤女人跪下吃男人J8免费视频，這可能是出于改善超大型浮體結(jié)構(gòu)的運(yùn)動(dòng)性能和為了滿足結(jié)構(gòu)強(qiáng)度要求。

The governing equation is the mild-slope equation. Finite element method has advantage to treat complicated boundary. The second order radiation boundary condition is expanded to improve the wave model for large incident wave angles. The validity of the second order radiation condition is examined through varying arbitrary wave incident angles.

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By using the second order Stokes wave theory, the wave force is calculated and the method to deduce the formula of the second order Stokes wave force spectrum is explored. A representative example is given and the results horn calculation are obtained in the form of curves for comparison.

本文基于二階7Stokes非線性波浪理論探討了采用非線性波浪理論時(shí)隨機(jī)波浪力譜的計(jì)算方法尹人网国产精品，并用一典型算例久久久免费视频日韩，對(duì)本文公式的計(jì)算結(jié)果與線性波理論的計(jì)算結(jié)果進(jìn)行比較。

Results show that amplitude of displacement excited by vertical incidence wave is larger than that excited by inclined incidence wave and not influenced greatly by the incidence angle. In vertical incidence, amplitudes of displacement of two points at the same altitude along each cavern are basically identical and maximum relative displacement occurs between top and bottom point of the cavern. While in the case of inclined incidence, displacement amplitude on sides meeting the wave is larger than that on leed sides, and maximum relative displacement occurs on left skewback and bottom of the cavern.

結(jié)果表明99re热视频这里只精品人人妻，位移幅值受入射角度的影響不敏感一级黄片www,186.com，豎直入射比斜入射情況要大；豎直入射時(shí)www.人人操人人射，各洞室兩側(cè)同一高程處的位移幅值基本相同露水夫妻，相對(duì)位移差最大部位為洞頂與洞底，而斜入射時(shí)迎波面比背波面一側(cè)位移大91在线亚洲精品专区，且相對(duì)位移差最大部位為洞室迎波面的左拱座與洞底三级片视频第一页。

Human origins the study of light early, but the understanding of the nature of light has gone through a more lengthy process, the light is actually the wave or the granule, the struggle of the light wave theory and the micellar theory started from the early 17th century,and comes to an end by the light wave-particle duality to the early 20th century.

人類對(duì)光的研究起源很早，但對(duì)光的本質(zhì)認(rèn)識(shí)經(jīng)歷了一個(gè)較漫長(zhǎng)的過(guò)程欧美成年在线，光究竟是波還是粒子国产雏18女破苞在线播放，光的波動(dòng)說(shuō)和粒子學(xué)說(shuō)之爭(zhēng)從17世紀(jì)初開始欧美性爱黄色一级片视频，至20世紀(jì)初以光的波粒二象性告終。