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The implicit iterative method was applied to the linearized Newton equation, and the key step in the process was that a new reasonable a posteriori stopping rule for the inner iteration was presented.

对线性化后的Newton方程用隐式迭代法求解,关键的一步是引入了一种新的更合理的确定迭代步数的后验准则。

Based on data collected from health check-up of a group of submariners,the authors established a discriminatory model of submariner's health level by the application of Bayes progressive discrimination method.

根据一组潜艇艇员体格检查资料中的14项指标,应用Bayes逐步判别分析法,选择其中6项指标建立了潜艇艇员健康等级的判别模型,用所建立的判别模型对原数据进行回代考核,总回代符合率为74.1%。

Monochloroethylene carbonate is prepared by chlorination of ethylene carbonate with sulfuryl chioride ,a solution of monochloroethylene carbonate in ethylene carbonate is reacted with triethylamine to give vinylene carbonate.A parameter design method was applied to select the optimum synthesis conditions.63.3% and 78% yields superior to the conventional for monochloroethylene carbonate and vinylene carbonate were obtained respectively,and the process was also simplified .

以碳酸乙烯酯为原料,用磺酰氯作为氯化剂生成一氯代碳酸乙烯酯,三乙胺为脱卤化剂在碳酸乙烯酯溶剂中合成碳酸亚乙烯酯,对一氯代碳酸乙烯酯和碳酸亚乙烯酯制备的工艺参数进行优化,收率分别达到63.3%和78%,均超过了传统方法,且简化了工艺,缩短了反应时间,易于工业化生产。

The cyclic tridiagonal matrix method is adopted to solve the discretization equations. The circumferential cyclic boundary condition is implemented using the mutual replacement method.

同时,对圆周角方向的周期性用反复迭代方式来实现的方法提出了一种实施边界条件处理的方式,并比较了采用CTDMA方法与采用反复迭代法的收敛速度。

Assuming that there is a plural Z and , with the following iterative calculation : Z = Z2 +, because the value of different , after several iteration number Z after the amplitude may tend to infinity. May also maintained sector, Mandebo Lott who is set to make Z maintained sector pool put on the complex plane make the distribution of images, as demonstrated above in the extremely complex structure.

假设有复数Z和μ,用下式迭代计算:Z=Z2+μ,由于μ的取值不同,经过若干次数迭代以后Z的幅值可能趋向无穷,也可能保持有界,曼德勃罗特集就是那些使Z保持有界的μ的集合,把μ在复平面上的分布作成图像,就像上面演示的那样具有极其复杂的结构。

Three types of cells were transferred into perivitelline space under zona pellucida of rabbit oocytes respectively.

用体外培养14代和24代的小鼠胚胎干细胞构建的异种重构卵的卵裂率分别是88.5%和82.1%(P>0.05),囊胚发育率分别是16.7%和15.4%(P>0.05)。

Aiming at the shortcoming of sodium sulfantimonate preparation process,a new preparation process was designed which adopted sodium sulfide to leach sodium sulfantimonate from sodium antimonate.

针对目前硫代锑酸钠制备工艺的不足,设计出用硫化钠浸出锑酸钠制备硫代锑酸钠的新工艺。

Observations on intact transparent ovaries under inverted differential interference microscope showed that the antipodal cells in the embryo sac disappeared at 4 days after pollination.

用粳稻84_15与水稻喜峰杂交,在杂种第二代选育出中新一号比秋光增产11%,已种植F10代农艺性状保持一致。

Other three alien translocation lines referring to chromosome Lr.14 of L.racemosus were also induced via irradiated pollens.After irradiated by gamma raysof 1KR does,the pollens of T.aestivum-L.racemosus Lr.14 disomic addition lineswere used to pollinate wheat varieties"Yangmai No.5"and"Mianyang No.11".M1plants have pairing between wheat chromosomes and Lr.14 ofL.racemosus at PMCMI stage were self-pollinated,and the M2 seeds used to be Giemsa C-banded andfluorescence in situ hybridized.As the result,three alien translocation lines wereobtained and T12 was observed to have distal translocation chromosomes betweenLr.14S and a wheat chromosome segment(TW-Lr.14S·Lr.14L).T13 wasidentified to contain mostly-alien-translocation chromosome(TLr.14L·Lr.14S-W).T14 was proved to contain a translocation between Lr.14L and 6BS,with approximatebreakpoint at 6BS2.2 region, FL0.22 in the short arm of chromosome T6BL.6BS-Lr.14L.

用普通小麦-大赖草Lr.14二体异附加系经辐射处理过的花粉给扬麦5号和绵阳11号授粉,M1代植株进行PMC MI染色体配对分析和Giemsa C-分带,选出PMCMI小麦和大赖草染色体发生配对的植株进行自交,M2代经RTC M期染色体C-分带和原位杂交,鉴定出3个小麦-大赖草易位系,其中T12为由Lr.14大部分和一个小麦染色体片段组成的易位染色体(TLr.14L·Lr.14S-W);T13含由Lr.14染色体绝大部分与小麦染色体的一个小片段组成的易位染色体(TLr.14L·Lr.14S-W);T14易位系的染色体易位发生在小麦6BS2.2区和大赖草Lr.14L之间,易位断点在T6BL·6BS-Lr.14L易位染色体的FL0.22附近。

One route was that the amino-groups on the silica gel were transformed to tertiary amines by Eschweiler-clarke reaction that amine-groups react with formaldehyde and methanoic acid to prepare tertiary amines; the silica gel intermediates with tertiary amine groups reacted with chorohydrocarbons to prepare insoluble silica gel quaternary ammonium salt bactericides. Another route was that the amino-groups on the silica gel reacted with excessive chlorohexadecane; the preparing intermediates were quaternized with iodomethane to obtain insoluble silica gel quaternary ammonium salt bactericides.

一条路线是根据埃施韦勒-克拉克(Eschweiler-clarke)胺甲基化反应,进行胺基叔胺化反应,制成带有叔胺官能团的硅胶中间体,此中间体上的叔胺与卤代烷反应生成杀菌活性官能团季铵盐,制成硅胶类水不溶性季铵盐杀菌剂;另一条路线是带有胺反应活性中心的硅胶与过量正氯代十六烷反应,得到的中间体再用碘甲烷季铵化,得到最终产品——水不溶性季铵盐杀菌剂。

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With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务,乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐,因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。

Closes the eye, the deep breathing, all no longer are the dreams as if......

关闭眼睛,深呼吸,一切不再是梦想,犹如。。。。。。