The phase of optical wave can be recovered by the intensity transport equation under the paraxial approximation For the optical system with diffraction limit, it is difficult to get the boundary radical slope of phase and sample in the circular domain boundary when using the intensity transport equation to recover the phase, consequently, we reviewed an algorithm mentioned in the reference ［4］, namely, the equation, computation domain and boundary condition are changed, then the phase is reconstructed by the multigrid method and corrected at last Moreover, the experiment system is set to testify the algorithm, and the recovered phase from the intensity data detected by CCD is compared with the result from phase retrieval algorithm, it is found that the phase reconstruction error can reach 017 λ in the case of non-uniform intensity distribution, as a result, the method is suitable for the phase recovery with low wavefront sensing accuracy.

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Taking advantage of gauge transformation and dipolar approximation, we qualitatively derive rotating Bose-Hubbard model.Then finite temperature phase boundary between superfluid phase and normal state in rotating Bose-Hubbard model is analytically derived by studying the stability of normal state in rotating bosonic optical lattice.We also analytically prove that as the function of rotation angular velocity the oscillation of critical hopping matrix directly follows the upper boundary of Hofstadter butterfly.

4通過做一個規(guī)范變換和偶極近似亚洲黄情，定性地推導(dǎo)了旋轉(zhuǎn)Bose-Hubbard模型，并且通過研究正常態(tài)不動點的穩(wěn)定性推廣了旋轉(zhuǎn)Bose-Hubbard模型的零溫相圖到有限溫度的情形大屁股网站；另外根據(jù)系統(tǒng)有效的能帶寬度與旋轉(zhuǎn)速度的關(guān)系(Hofstadter蝴蝶)超碰在线永久，得到了系統(tǒng)的臨界躍遷矩陣隨旋轉(zhuǎn)速度的改變展示諧振行為的結(jié)論。

Results show that the phase boundary comprises two segments relating to the purely new phase and mixed phase respectively.

相邊界包括純新相和混合相兩段18岁禁止在线免费观看。

Moreover, there exists a morphotropic phase boundary for the composition at x= 0.33 , and the rhombohedra phase and tetragonal phase coexists for the composi tion near MPB, but the pure rhombohedra phase and tetragonal phase separately exists for the composition away from MPB.

陶瓷樣品X-射線衍射相組成和相結(jié)構(gòu)分析表明：所有陶瓷樣品均為純鈣鈦礦相久久久好视频，無任何其他雜相出現(xiàn)；且組成在x=0.33處存在一準同型相界国产自产精品视频，在該相界附近三方相和四方相共存欧美人人做人人爱视频，而遠離該相界則分別為純?nèi)较嗪退姆较唷?/p>

Multicomponent polymer systems; Fillers; Phase behavior; Dynamic rheology; Phase boundary; Binodal phase separation; Spinodal phase separation

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The phenomenon demonstrates that the perovskite is a stable state with low free energy. The (1-x) PMN- x PT system has a morphotropic phase boundary separating the tetragonal and rhombohedral phases. The MPB is located in the vicinity of x = 33%. The PMN-PT ceramics near the phase boundary possesses excellent piezoelectric performance. d33 can reach to 540 pC/N. kt and kp can be up to 0.45 and 0.62, respectively.

在準同型相界附近欧美性爱颜射，PMN-PT陶瓷材料具有較好的壓電性能，d33可達540 pC/N71av视频在线，kt国产丝袜高清在线精品一区、kp分別可達0.45和0.62；在準同型相界附近美国大片又乱又伦，極化后的（1-x）PMN-xPT陶瓷材料（0.22 x 0.35）的介電常數(shù)在溫度誘導(dǎo)FR-FT相變過程中發(fā)生突變禁看网站；PMN-PT陶瓷材料在FR-FT相變過程中呈現(xiàn)出一個熱釋電峰，反應(yīng)了自發(fā)極化在相變過程中發(fā)生了非線性的變化a欧美专区。

Dielectric, piezoelectric and electrmechanical coupling properties of PZT and PSZT systems at high Zr content region were studied. The feature of high Kt and low Kp of PZT-based materials near F-AF phase boundary was exploited and examined, and electromachanical coupling anisotropy Kt/Kp is higher than that at the morphotropic phase boundary , Kt≥0.40, Kt/Kp≥3. 0. This phenomenon can be realized by electric field -induced AF-F phase transition and explained by coupling effect of two-sublattice in antiferroelectric unit cell.

研究了PZT和PSZT兩個系統(tǒng)在高鋯區(qū)的介電成人免费视频网站、壓電和機電耦合等性能，首次發(fā)現(xiàn)了PZT基材料在鐵電-反鐵電相界處具有高Kt和低Kp的性質(zhì)，機電耦合各向異性Kt/Kp也比準同型相界要高亚洲91呦呦视频，Kt≥0.40久草观看视频，Kt/Kp≥3.0，并把這一現(xiàn)象歸因于電場誘導(dǎo)AF-F相變和反鐵電雙子晶格間的強耦合作用最新白嫩丰满美女AV网站。

The Bengtsson-Jacobson conjecture that "degenerate phase boundaries are always null" is studied by the mapping language in Chapter 4. By distinguishing a "phase boundary" from its image in the "covariant approach", the nulless of the image is proved. Time-like and null hypersurfaces in the degenerate space-times in the Ashtekar theory are denned, and then the phase boundary obtained by the "covariant approach" is shown to be always null.

我們在第四章用映射的語言分析了Bengtsson和Jacobson關(guān)于&相邊界為類光&的猜想久久久久久黃色網站免費；通過區(qū)分&協(xié)變方法&中的&相邊界&和它的像，我們證明了像的類光性一级欧美黑人大战白妞；在定義了Ashtekar退化時空中的類時和類光超曲面之后18岁免费看的黄色网站，我們證明了&協(xié)變方法&得到的相邊界必定是類光的。

The results show that Mg segregates to the phase bounda-ries of MC/γand γ′/γ. The thickness of Mg on MC/γ phase boundaries is latgerthan that on γ′/γ phase boundaries. The results prove that Mg is not only a grainboundary segregation element, but also a phase boundary searegation one.

結(jié)果表明色秀视频a8a6com，微量Mg偏析于MC和γ′相界面国产精品老女人精品视频，而在其內(nèi)部沒有富集；Mg在MC相界面上的偏析厚度大于在γ′相界面的偏析厚度黄片A片三级aa黄；試驗結(jié)果及理論分析表明欧美性爽欧美精品一，Mg不僅是晶界偏析元素，更重要的是相界偏析元素久久亚洲欧美va。

In the phase-boundary reactions of cyclohexene hydration and isoamyl acetate hydrolysis, these amphiphilic zeolite particles are oriented at the aqueous-organic phase boundary and exhibit catalytic activity obviously superior to the parent zeolites.

在環(huán)己烯水合及乙酸異戊酯水解的相界面反應(yīng)中，兩親性沸石分布於水－油兩相界面自拍偷拍精品专区，并表現(xiàn)出明顯高於各自母體沸石的催化活性特黄一级乱淫A片。