查询词典 2-butene

In this paper, the relationship between the linear complexity and the 2-adic complexity is investigated based on the Chinese Remainder Theorem and some other related theories in the number theory, and the existence of N-periodic sequences that simultaneously achieve the maximum 2-adic complexity and a great k-error 2-adic complexity is proved.

文中借助数论中的中国剩余定理等相关理论研究了二元序列的2-adic复杂度与线性复杂度的关系，证明了具有最大2-adic复杂度以及较大k错2-adic复杂度的N周期序列的存在性，给出了具有这种性质的周期序列的数目的下界。

In chapterⅡ, considering GLMMs data which the number of high units is different and the number of low units is small and unbalanced, we Conduct a series of simulations, the simulations show that regardless of the number of the level 2 units,the Bayesian estimate of random effects residual variance is more precise than PQL and the PQL estimation deviates from the true value seriously; In terms of the fixed effects estimates, When the number of level 2 units is 20, The mean and median of the Bayesian estimate is more precise than PQL,But With the number of level 2 units increase,the estimate of two methods is similar. Thus, in practical applications, we recommend the use of Bayesian method.

第二章针对不同高水平单位数，低水平数较小且不平衡的GLMMs数据，进行模拟研究，研究表明：无论水平2单位数的大小，贝叶斯方法随机效应残差方差估计值远比PQL法更接近真实值，PQL法严重偏离了真实值；而对固定效应参数估计值，当水平2单位数为20时，贝叶斯法各参数的均数和中位数均要较PQL法更接近真实值，而随着水平2单位数的增加，两种方法在估计固定效应参数时相差并不大，因而，在实际应用中，推荐采用贝叶斯法。

Inhibition to activated sludge process by 2-naphthol was also investigated by Warburg respirometer to verify the conclusion drawn from Rank Cell respirometer test. 2-Naphthol in low concentration was biodegradable, hence resulted in the acceleration of respiration, while in higher concentration 2-naphthol would dramatically inhibit microorganisms respiration on account of high K〓 and electron density.

用Warburg呼吸仪研究了2-萘酚对活性污泥过程的抑制作用，验证了RankCell呼吸仪的研究结论，发现低浓度下2-萘酚自身能被生物降解而使活性污泥中微生物呼吸速率升高；浓度增加后2-萘酚因良好的脂溶性和强亲核能力而对活性污泥过程产生强抑制。

Tax: China's tax revenue rose 18.8% YoY to RMB5.42tn in 2008 according to MOF , vs. 2007's 33.7%. 1 Value-added, corporate income and business tax revenues rose 16.3%, 27.3% and 15.9% respectively, which together contributed about 70% of the increased revenue. 2 Stamp duty for stock transactions was the only tax that saw YoY drop (-51.2% YoY ). 3 2008 saw 1H08 tax revenue growth at 33.5% YoY , relatively flat from 2007; but 2H08 growth was a mere 3.2%, lower than GDP growth in the same period.

税收：据财政部透露，08年中国税入达到5.42万亿元，同比增长18.8％，07年同比增长为33.7％。1）增值税、企业收入税和营业税分别增长16.3％、27.3％和15.9％，三项税入贡献了总增长的70％。2）股票交易印花税是唯一下跌的税入（同比下跌51.2％）。3）08年上半年税收同比增长33.5％，与07年基本持平，但08年下半年税收增长仅为3.2％，低于同期 GDP 增长。

To produce the scientific evidence for developing and manufacturing new antitumor drugs.Methods: 1 The inhibitory effect on cell growth of Hela was measured by MTT assay in treated or untreated groups (3.125, 6.25, 12.5, 25, 50μg/ml TAM and control) for three different treatment times (24h, 48h and 72h).2 Apoptosis and cell cycle were measured by FCM in four experimental groups (0, 4, 16, 40μg/ml TAM) for 48h.3 Adopting Wright and Giemse's staining to observe the morphology of Hela cells which treated with 40μg/ml TAM.4 Using invasion experiment to detect the Hela cells'invasive abilities which treated with 40μg/ml TAM.5 The protein expressional levels of P-ERK, ERK, C-myc and Cyclin D1 in Hela cells untreated or treated with 4, 16, 40μg/ml TAM for 24h were measured by Western blot.6 Expression of anti-apoptotic gene bcl-2, apoptotic gene bax and MMP-9 in Hela cells of four experimental groups (0, 4, 16, 40μg/ml TAM for 24h), were observed by revers transcription PCR.7 The protein expression of P-ERK, ERK, Bcl-2 and Bax in Hela cells treated with 40μg/ml TAM for 24h observed by laser scanning microscopes.

1采用四甲基偶氮唑蓝法检测不同浓度北豆根总碱(3.125、6.25、12.5、25、50μg/ml)处理不同时间(24、48和72小时)对Hela细胞增殖反应的抑制作用。2采用流式细胞技术(flow cytometry，FCM)检测不同浓度北豆根总碱(0、4、16、40μg/ml)作用48小时，对Hela细胞凋亡及周期变化的影响。3瑞氏-姬姆萨染色后显微镜观察北豆根总碱(0、40μg/ml)作用24小时后Hela细胞形态学变化。4采用Transwell小室法检测北豆根总碱(0、40μg/ml)作用24小时后对Hela细胞侵袭性的影响。5采用免疫印迹方法检测不同浓度北豆根总碱(0、4、16、40μg/ml)作用24小时后，Hela细胞中磷酸化ERK、ERK、C-myc、CyclinD1的表达变化。6采用逆转录-聚合酶链反应(revers transcription PCR，RT-PCR)半定量检测北豆根总碱(0、4、16、40μg/ml)作用24小时，Hela细胞抗凋亡基因bcl-2、促凋亡基因bax、基质金属蛋白酶-9(MMP-9)的表达变化。7应用激光共聚焦显微镜(laser scanning microscope，LSM)观察北豆根总碱(0、40μg/ml)作用24小时后，Hela细胞内P-ERK、ERK、Bcl-2、Bax蛋白的表达变化。

The invention provides the flux-cored wire for welding the duplex stainless steel, 17 percent to 24 percent flux-cored powder is filled into stainless steel belt. The invention is characterized in that the mass percent of the components of the flux-cored is as follows: 35 percent to 40 percent of chromium powder, 11 percent to 15 percent of molybdenum powder, 2 percent to 4 percent of nickel powder, 3 percent to 5 percent of manganese powder, 1 percent to 5 percent of magnesia chrome, 1 percent to 3 percent of ferrosilicon, 4 percent to 9 percent of rock crystal, 2 percent to 6 percent of feldspar, 21 percent to 30 percent of rutile, 0.5 percent to 4 percent of Al2O3, 0 percent to 5 percent of zircon, 0.5 percent to 3 percent of Bi2O3, and 0.5 percent to 3 percent of manganese nitride.

一种用于焊接双相不锈钢的药芯焊丝，将药芯粉末以17～24％填充在不锈钢带内，其特征在于，所述的药芯质量百分比成分如下：35～40％的金属铬粉，11～15％的金属钼粉，2～4％的金属镍粉，3～5％的金属锰粉，1～5％的铝镁合金，1～3％的硅铁，4～9％的石英，2～6％的长石，21～30％的金红石，0.5～4％的Al 2 O 3 ，0～5％的锆英石，0.5～3％的Bi 2 O 3 ，0.5～3％的氮化锰。

The results from the experiment of linear guidance showed that an combination of four parameters "rud","ctr","yau", and "trn" of (2,2,2,7) was a good choice, with an average path deviation of 1.247m. The results from the experiment on waypoint guidance by satellite showed that the first route, from waypoint A to waypoint B, had a good state, with an average path deviation of 1.188m.

测试结果发现：直线导航的较佳状况是rud、ctr、yau和trn四个参数分别为(2，2，2，7)，此时的平均偏移量为1.247公尺；而在卫星导航中，较佳情形则是A、B航点间的第一段路线，平均偏移量仅1.188公尺。

Among them flowers and plants of head shape column (flowers and plants of column of Capitata), horse segment of a circle (flowers and plants of column of Fine Stem), Mineirao and CIAT1517 column flowers and plants (CIAT1517) belongs to phosphor small effect is not sensitive model; heat grinds 2 column flowers and plants (Reyan2), heat grinds 5 column flowers and plants (Reyan5), flowers and plants of column having a check mark (flowers and plants of column of Verano), bush and TPRC2001-2 column flowers and plants (TPRC2001-2) performance is not steady.

其中头状柱花草、马弓形柱花草、Mineirao柱花草和CIAT1517柱花草(CIAT1517)属于磷低效不敏感型；热研2号柱花草(Reyan2)、热研5号柱花草(Reyan5)、GC1581柱花草(GC1581)和TPRC2001-1柱花草(TPRC2001-1)属于磷高效敏感型；西卡柱花草属于磷高效不敏感型，有钩柱花草、灌木柱花草和TPRC2001-2柱花草(TPRC2001-2)表现不稳定。

Ninteen cases of posterior semicircular canal BPPV were treated with otolith reposition.Reexamined after 2 weeks,14 cases disappeared vertigo,2 cases had no positional vertigo but they were dizzy,2 cases improved the syndromes,1 case had no effeciency.

内容提要用Epley首创的耳石复位法治疗后半规管性良性阵发性体位性眩晕。2周后复查，结果显示，眩晕消失14例，无体位性眩晕，但有头昏2例，眩晕症状改善2例，无效1例。

Expression of MMP-2 and TIMP-2 was examined by immunohistochemical technique and scored semiquantitatively(score 0-3) in carcinoma cells, and the results were correlated with clinicopathological tumor parameters.

我们通过免疫组织化学染色观察人胰腺癌组织MMP-2和TIMP-2的表达情况及其与侵袭转移的关系，旨在探讨MMP-2和TIMP-2表达对胰腺癌患者预后的影响。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。