Fig 1 Negative control Female umbilical cord sample has no Y-specific signal after in situ hybridization with the biotinylated Y-repeated sequence DNA probe PY3.4 Fig 2 Positive control Flow-sorted male umbilical cord cells hybridized to Y-specific DNA probe PY3.4,Every cell contains a Y-specific signal Fig 3 Fetal cells sorted from maternal blood Flow-sorted cells from a pregnant woman at 20 weeks of gestation hybridized to Y-specific DNA probe PY3.4,containing a Y-specific signal Fig 4 The result of polymerase chain reaction Lane 1:male umbilical cord NRBCs sorted by FITC-conjugated anti-monoclonal glycophorin A;Lane 2:sample of 2;Lane 3:male umbilical cord NRBCs sorted by FITC-conjugated anti-CD36;Lanes 4-5:samples of 1 and 3;Lane 6:50 cells of male;Lane 7:5 cells of male;Lane 8:200ng male DNA(positive+control);Lane 9:nonpregnant female DNA(negative+control);Lane 10:ΦX174 HaeⅢ Maker,271bp:amplified band of Y-specific gene SRY;383bp:amplified band of human β-globin gene

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So we designed a adaptive synchronizing controller based on hereinbefore hardware environment: first a small magnitude reference signal r is outputted to system through the signal card (to ensure that the vibrating system works in a linear state), and this signal is sent to the moving coil of vibrator through the power amplifier, so vibration is produced through electromagnetic induction. Secondly the vibration signal can feedback to the data acquiring card in the servo system through the acceleration sensor on the Vibroseis reactor M〓 and the base-plate M〓, then the computer can get the current vibrating state y〓 of the coil of vibrator according to the feedback information from the data acquiring card, and give a real time comparing between the current state y〓 and the reference output y〓 of the set-in reference model with current reference input being r , then regulates the correlative controlling parameters according to the error e〓=y〓-y〓 till y〓→y〓, finally normal signal sweeping begins with a certain phase fixed. Meanwhile a synchronization signal for seismic signal record is sent to seismograph from synchronization signal outputting component in the Vibroseis system to perform the controlling process of synchronization of sweeping phases.

為此，我們基于以上的硬件環(huán)境設(shè)計(jì)了一個(gè)自適應(yīng)同步控制器：首先通過信號發(fā)生卡對系統(tǒng)輸出小幅度的參考信號r(從而保證振動(dòng)系統(tǒng)工作處于線性狀態(tài))美女操白浆网站，信號通過前置放大器国产一区二区精品久久久v、功率放大器等送到激震器動(dòng)圈，并通過電磁感應(yīng)產(chǎn)生振動(dòng)能在线看的av，振動(dòng)信號通過可控震源激震器反應(yīng)塊M〓和基板M〓上的加速度傳感器反饋給伺服系統(tǒng)中的數(shù)據(jù)采集卡，工控計(jì)算機(jī)根據(jù)采集卡的反饋信息在线超碰cao，獲取當(dāng)前激震器動(dòng)圈的振動(dòng)狀態(tài)y〓免费毛片在线视频播放，并實(shí)時(shí)地將該狀態(tài)與內(nèi)置的參考模型在當(dāng)前參考輸入r下的參考輸出y〓進(jìn)行辨識，再將兩者輸出誤差e〓＝y(tǒng)〓-y〓對系統(tǒng)的有關(guān)控制參數(shù)進(jìn)行調(diào)整一级国产高清免费观看，直至y〓→y〓黄色网站下载久久，最后在經(jīng)過某一固定的相位后，開始信號的正常掃描過程福利视频免费一区，與此同時(shí)色色爱综合，由可控震源系統(tǒng)的同步信號輸出部件向地震儀送出一地震信號記錄同步信號，進(jìn)而完成掃描相位同步控制過程18禁在线播放免费。

Only with such characteristics, the movement equations can be expressed as matrices, and the idea of transforming the movement equations to the simplest form through a nonlinear transformation can be realized;(2) The form of Zi =Yi + YTH2i Y + Y7H3i Y(2)+ Y(2)T H4i Y(2)+ YTH5i Y(3) is adhibited in the nonlinear transformation, so that the multivalued problem caused by the nonlinear transformation is avoided, and the higher order transformation can be taken next;(3) The fourth order nonlinear transformation matrices H21,H31,H41 and H51 are derived, by which the original movement equations of electric power system is transformed to Jodan form in Z space;(4) By use of the fourth order nonlinear transformation, the approximate expression of the stability boundary is obtained, in Z space it is Z1= 0,in Y space it is Y1 + YTH21 Y + YTH31 Y(2)-i- Y(2) TH41 Y(2)+YTH51 Y(3)= 0;(5) The criterion used in this paper to judge whether the system critical unstable is simple and quick;(6) The method used in this paper is a direct method, and no need to construct an energy function.

正是由 于電力系統(tǒng)的運(yùn)動(dòng)方程具有這樣的特性800avcvm，才能寫成矩陣的形式，通過非線性變換將電力系統(tǒng)的運(yùn)動(dòng)方程變換為最簡單的線性形式的思想才能得以實(shí)現(xiàn)免费黄色在线观看网站；（2）將通常運(yùn)用于電力系統(tǒng)暫態(tài)穩(wěn)定性分析的Normal Form變換的形式由 Yi＝ Zi＋ ZTh2riZ變形為 Zi＝ Yi＋YTH2iY＋YTH3iY（2）＋Y（2）TH4iY（2）＋YTH5iY（3）国产精品黄色在线观看，從而使得在對持續(xù)故障軌線實(shí)施同樣的非線性變換以確定臨界切除時(shí)間時(shí)，避免了非線性變換帶來的多值性的問題人人做人人叼嘿，而只有在沒有多值性問題的困擾下色综合久久加勒比中文字幕，才能采用較高階的變換：（3）推導(dǎo)出了將原始電力系統(tǒng)系統(tǒng)的運(yùn)動(dòng)方程變換到Z空間的約當(dāng)形式的非線性變換矩陣H21、H31国产91在、H41国产一级美女黄片A、HS1：（4）在運(yùn)用四階了「線性變換的情況下，給出了受擾動(dòng)后系統(tǒng)的穩(wěn)定邊界的近似的解析表達(dá)最新国产精品视频网站，在Z空間為Z1=0jizz国产视频，在y空間為： Y1+YTH21Y+YTH31Y(2)+Y(2)TH41Y(2)+YTH51Y(3)=0 （5）確定臨界失穩(wěn)的判據(jù)簡單、快捷：對于一個(gè)復(fù)雜的電力系統(tǒng)久久精品国产精品久久96，其穩(wěn)定邊界是相當(dāng)復(fù)雜的一個(gè)高維曲面国产Aⅴ无码专区,亚洲Av，即便是已知系統(tǒng)穩(wěn)定邊界的解析表達(dá)，要求出系統(tǒng)持續(xù)故障軌線何時(shí)與這一高維曲面相交两人在线看A片，在數(shù)學(xué)上幾乎是不可能實(shí)現(xiàn)的操逼亚洲色。

y-axis y：軸;Y軸向

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roux-Y type gastrojejunostomy：胃空腸Y形吻合術(shù)

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Y box：星形電阻起動(dòng)器箱,Y形電阻箱

星形電阻起動(dòng)器箱,Y形電阻箱 Y box | Y循環(huán)器 Y circulator | Y軸方向 Y direction