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values estimated
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  估算值
     The dispersion of transitional metal oxide (NiO, CuO or MoO 3) on modified oxide support (TiO 2 γ Al 2O 3, MoO 3 t ZrO 2 or NiO t ZrO 2) and the interactions among the oxide components in these ternary oxide systems are discussed. The experimentally measured dispersion capacities of the transition metal oxides are basically consistent with the values estimated by the incorporation model proposed previously based on the studies of binary oxide systems.
     讨论了一些过渡金属氧化物 (NiO ,CuO或MoO3 )在经改性所得复合载体 (TiO2 γ Al2 O3 ,MoO3 t ZrO2或NiO t ZrO2 )上的分散作用 ,这些三元体系中实验测定的氧化物分散容量与研究负载型二元氧化物体系所得嵌入模型的估算值基本相符 ;
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     by hydrogen bubble technique. The flow velocity distribution both in front of and behind the model was measured by hydrogen bubble time lines. It is closed to the values estimated by the irrotational flow theory for the flow right after the start.
     模型前后流速分布是用氢泡时间线测量的,它与在起动开始时由无旋流理论估算值接近,但当起动旋涡变大以后,在尾流中流速差别变大。
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     The comparing the experiment data of detonation velocity for various initial density values of TNT which detonation product contains more solid carbon with the theory values estimated with above mentioned method, a new test of the hypotheses of the ZND theory was performed.
     用产物中含碳量较多的TNT的 {D ,ρ0 }实验数据与理论估算值相比较 ,可以对爆轰的ZND理论的假设进行检验 .
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     The LD 50 values estimated for ARSEF1100 were 231 68,113 08, 71 41, 40 87 and 35 30 conidia/mm 2 on days 4-8 after exposure, respectively.
     接种后 4~ 8天内 ,ARSEF110 0的LD50 值分别为 2 31 6 8、 113 0 8、 71 4 1、4 0 87和 35 30 mm2 的孢子 ,其毒力远高于其余 3个菌株 ;
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     8.Linkage between resistant genes and marker genes was discovered in M9×IR28,M10×IR28 and M22×IR28.The recombination values estimated were:Xa-a-la 27.9%;
     IR28的抗性基因与 M9,M10和 M22的标记基因有连锁现象。
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     The results indicated that the sd-g gene was linked to the marker genes n1(neck leaf) and gh-1 (gold hull-1) The recombation values estimated were 24.33%±3.96% for sd-g to gh-1 and 29.44%±4.81% for sd-g to n1, respectively.
     结果表明:半矮秆基因sd-g与标志基因系M4所携隐性主基因gh-1和M27所携隐性主基因n1表现连锁。 sd-g与gh-1之间的交换值为24.33%±3.96%,sd-g与n1之间的交换值为29.44%±4.81%。
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     It was found that the Vo_2max values estimated by Wang Jimin's formula were most near to those estimated with Maritz's regression method.
     结果表明,汪济民计算式估计的Vo_(2max)更接近回归方程法的估计值。
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     in canned Water Chestnuts:TDT = 2.62, D = 0.43, Z=14.3. These thermal resistance values estimated may be used to determine the thermal schedule of respondent canned foods.
     马蹄罐头汤汁的TDT=2.62,Dr=0.45,Z=14.3℃。
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     And the values of Q.
     Fe~(3+)M_1位的Q.
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     The range of normal values was estimated.
     按统计学原理进行分析 ,并对总体正常值范围进行估计。
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     Pollen percentages, R-values and pollen infux were estimated.
     用在表土中所取R值对化石花粉组合谱进行了校正。
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     On Confucianist Values
     儒家价值观评议
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     It was estimated that there were 7?
     预测全省现有感染者7 000余人。
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  values estimated
For stepped surfaces vicinal to Pt(111), two local maxima in the entropy of the double layer are observed that are close to the local PZTC values estimated from the N2O reduction.
      
Results are partly in agreement with values estimated by long-term in vivo methods.
      
This indicates that the total ecosystem values estimated for the study area are relatively inelastic with respect to the ecosystem service coefficients.
      
The isotopic dependence of the g-values estimated for fast neutron radiolysis is also presented.
      
The experimental results are compared with theoretical values estimated with the Lindholm approximation using C6 constants calculated as well from the Uns?ld formula as from fits to pseudopotentials.
      
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The impurity distribution to be expected in a pulled crystal of silicon is investigated theoretically for the general case that the starting material may contain various donor and accepter impurities and the grown crystal as well as the crucible may have non-uniform cross-sections. Equations determining the distributions of the various impurities are set up, taking account of effects of crucible contamination, impurity evaporation and segregation. It is shown that the solutions can be expressed as linear combinations...

The impurity distribution to be expected in a pulled crystal of silicon is investigated theoretically for the general case that the starting material may contain various donor and accepter impurities and the grown crystal as well as the crucible may have non-uniform cross-sections. Equations determining the distributions of the various impurities are set up, taking account of effects of crucible contamination, impurity evaporation and segregation. It is shown that the solutions can be expressed as linear combinations of certain characteristic functions (depending on shape of the crucible and the crystal grown) with appropriate coefficients which are directly related to the impurity concentrations in the starting material and the crucible contamination coefficient. Three crystals are grown and the longitudinal distributions of conductivity are measured. The characteristic functions are calculated for each case from the shapes of the crystal and the crucible. By comparison of the theoretical impurity distributions with the measured conductivity distributions, the appropriate coefficients of linear combinations can be determined. In this way, one obtains an approximate estimate of the crucible contamination coefficient, the impurity contents in the starting material as well as the distributions of the different impurities in the crystals grown. The crucible contamination coefficient thus determined agree with values estimated by other methods.

对于原材料含有多种杂质,石英坩埚对熔硅有沾污,晶体截面和坩埚截面并非常数的情况,分析和计算了拉硅单晶时熔体中杂质浓度的变化和单晶中的杂质分布。理论上必须同时考虑多种杂质的污沾、蒸发和分凝过程。实验测定了硅单晶中电阻率分布,与理论相符合。利用这里提出的分析方法,可以确定出石英坩埚的沾污率,并可粗略估计单晶中各种杂质的分布情况以及原材料所合杂质的情况。并且利用复拉单晶的办法,试验了几种测定坩埚沾污率的方法。各种方法所测得的坩埚沾污率值相近,为(1.0—1.5)×10~(11)硼原子/秒·厘米,相应的石英坩埚硼合量约为10~(-6)克硼/克石英。

In a study on the effects of a series of centrally active agents on the nucleic acid contents of animal brains, we have determined the normal contents of RNA and DNA in the brains of mice, rats and rabbits by a method of two-wavelength spectrophotometry. This paper presents the results thus obtained in comparison with the values estimated for the same tissue samples as determined simultaneously by the methods of single-wavelength spectrophotometry and colorimetry following orcinol or diphenylamine reaction.In...

In a study on the effects of a series of centrally active agents on the nucleic acid contents of animal brains, we have determined the normal contents of RNA and DNA in the brains of mice, rats and rabbits by a method of two-wavelength spectrophotometry. This paper presents the results thus obtained in comparison with the values estimated for the same tissue samples as determined simultaneously by the methods of single-wavelength spectrophotometry and colorimetry following orcinol or diphenylamine reaction.In spectrophotometry, the O. D. of RNA and DNA was determined at 260 and 268mμ respectively. The second wave length (λ_) selected for the estimation of RNA was 284.25mμ for mice and rats brain samples and 285mμ for rabbits, and that for DNA was respectively 281.5 and 282.5mμ.The constants used for calculation were:e(p)_(260) of RNA=6915, e(p)_(268) of DNA=9006; r-value of RNA=2.09 (mice, rats) and 2.24 (rabbits), r-values of DNA=1.46 and 1.58 respectively; K_(RNA)=860(mice,rats) and 809 (rabbits), K_(DNA)=1090 and 936 respectively.The results of determination by the two-wavelength method were the following:The average value for RNA in mice brain determined in 4 series of experiments on 37 animals ranged from 99.5 to 108.0mg P/100gm dry tissue; DNA ranged from 89.9-95.7mg P% and the RNA/DNA ratios from 1.06-1.15. ENA in rabbit brains ranged between 58.4-70.4 mg P%; the values for DNA were 38.3-44.1mg P% and the RNA/DNA ratios were 1.53-1.60. The average RNA content of 3 rat brains was 90.1 mg P%; DNA was 64.2 mg P% and the RNA/DNA ratio was 1.40.A comparison of our own results determined by three diffe(?)ent methods and also with values reported by others showed that determination of nucleic acid contents of the brain by Schmidt-Thannhauser and Schneider precedures was seriously interfered by contaminants. In the case of spectrophotometry the contaminants interfered mainly the determination of RNA; This interference may be eliminated to a great extent by an application of the two-wavelength method.

为了观察一些中枢神经系统药物对脑内核酸含量的影响,首先采用Tsanov等的双波长分光法测定了正常小鼠、大鼠和家兎全脑的核酸含量,并和单波长分光法及戊糖反应的比色法比较。用分光法测定RNA和DNA含量时所用波长分别为260及268mμ,在用双波长法测定RNA含量时选用的第二波长为284.25(小鼠,大鼠)和285mμ(家兎),测定DNA含量时的第二波长为281.5(小鼠,大鼠)和282.5mμ(家兎)。计算中需要的几个常数是:RNA的ε(p)_(260)=6915,DNA的ε(p)_(268)=9006;RNA的γ值为2.09(小鼠,大鼠)和2.24(家兎),DNA的γ值为1.46(小鼠,大鼠)和1.58(家兎);K_(RNA)为860(小鼠, 大鼠)和809(家兎),K_(DNA)为1090(小鼠,大鼠)和936(家兎)。用双波长法测定的4批实验37只小鼠脑内RNA含量为99.5—108.0毫克P/100克干燥组织,DNA含量为89.9—95.7毫克P%,RNA/DNA此值为1.06—1.15。6只家兎2批实验的结果,RNA含量为58.4—70.4毫克P%,DNA合量为38.3—44.1毫克P%,RNA/DN...

为了观察一些中枢神经系统药物对脑内核酸含量的影响,首先采用Tsanov等的双波长分光法测定了正常小鼠、大鼠和家兎全脑的核酸含量,并和单波长分光法及戊糖反应的比色法比较。用分光法测定RNA和DNA含量时所用波长分别为260及268mμ,在用双波长法测定RNA含量时选用的第二波长为284.25(小鼠,大鼠)和285mμ(家兎),测定DNA含量时的第二波长为281.5(小鼠,大鼠)和282.5mμ(家兎)。计算中需要的几个常数是:RNA的ε(p)_(260)=6915,DNA的ε(p)_(268)=9006;RNA的γ值为2.09(小鼠,大鼠)和2.24(家兎),DNA的γ值为1.46(小鼠,大鼠)和1.58(家兎);K_(RNA)为860(小鼠, 大鼠)和809(家兎),K_(DNA)为1090(小鼠,大鼠)和936(家兎)。用双波长法测定的4批实验37只小鼠脑内RNA含量为99.5—108.0毫克P/100克干燥组织,DNA含量为89.9—95.7毫克P%,RNA/DNA此值为1.06—1.15。6只家兎2批实验的结果,RNA含量为58.4—70.4毫克P%,DNA合量为38.3—44.1毫克P%,RNA/DNA此值为1.53—1.60。3只大鼠的平均结果,RNA含量为90.1毫克P%,DNA含量为64.2毫克P%,RNA/DNA比值为1.40。将我们所用三种方法测得的结果相互比较,并和其他作者用不同方法测定的结果相比较,表明用Schmidt-Thannhauser法和Schneider法测定脑内核酸含量时杂质的影响很大。在分光测定时杂质的影响主要存在于RNA的部分,双波长分光法可以消除杂质的影响。

Since leu-enkephalin (LEK) and met-enkephalin (MEK) were discovered in 1975, great progress has been made in the research on brain opiate pentapeptides. The preferable estimation method for these peptides is radioimmunoassay (RIA). We suggested and prepared immunogens by condensation of LEK or MEK with poly-Llysine semisuccinic acid, the rate of conjugation was 81% or 90%, one LEK or MEK molecule per 3.2 or 2.6 lysine residues. Rabbits were immunized by multiple intradermal inoculation. Specific antiserum (ALS...

Since leu-enkephalin (LEK) and met-enkephalin (MEK) were discovered in 1975, great progress has been made in the research on brain opiate pentapeptides. The preferable estimation method for these peptides is radioimmunoassay (RIA). We suggested and prepared immunogens by condensation of LEK or MEK with poly-Llysine semisuccinic acid, the rate of conjugation was 81% or 90%, one LEK or MEK molecule per 3.2 or 2.6 lysine residues. Rabbits were immunized by multiple intradermal inoculation. Specific antiserum (ALS or AMS) was obtained 6 or 3 months afterwards respectively, the working dilution of which was 1:5000, K_(eff) about 10~9 liters per mole. ~(125)I labelled LEK or MEK with specific activity of about 1,600μ Ci/μg were prepared by a modified chloramine-T method and purified by DEAE-Sephadex A-25 column chromatography, and were shown to possess a high immunoreactivity. The double-antibody technique was used to separate the "bound" from "free" ~(125)I-enkephalins. In the competitive inhibition curves, the detection limit of LEK was~ 11pg and that of MEK~130pg, whereas the precision was 1.8 or 1.4% respectively. No significant interference by β-endorphin, 8 peptide hormones, morphine and naloxone was found. The cross reaction rate was low, i. e., MEK vs. ALS was 3.3% and LEK vs. AMS was less than 1%.Brain enkephalins were extracted with 0.1N HCl. After neutralization, the supernatant portions were used directly for RIA. Several tests for validating the methodology has been processed: non-specific combination was found to bo less than 0.4~1.8%; a linear relation was found between the amounts of authentic MEK added to brain extract and the values estimated (p<0.001); the recovery of authentic LEK added to brain tissue was 84.2±8.2% (C.V.=9.7%, n=6): increasing the volumes of added brain extract increases the estimated quantity of enkephalins proportionally (p<0.001); the intraassay coefficient of variation of brain extracts measured was 3.4~6.2%, whereas the interassay coefficient of variation was 6.0~19.3%. In the normal rat brain, the highest amount of enkephalins, in terms of unit wet weight, was in the hypothalamus, with the caudate the next. These two assays have been shown to be sensitive, reliable and specific in our routine assay.

1975年发现亮氨酸脑啡肽(LEK)和甲硫氨酸脑啡肽(MEK)。其测定以放射免疫(RIA)最佳。作者提议并合成了多聚赖氨酸琥珀酰脑啡肽免疫原,EK结合率81~90%,每2.3或3.2个赖氨酸残基连上一个EK。免疫3或6个月时获得抗EK血清(ALS或AMS),工作稀度可达1:5000,K_(eff)10~9升/克分子。试用改进的氯胺T标记法及DEAE-Sephadex A-25柱层析制备高比放射性~(125)I-EK免疫活性良好。双抗体法分离抗体结合的和游离的~(125)I-EK。竞争抑制曲线:灵敏度LEK~11微微克,MEK~130微微克;精密度1.8%及1.4%。β-内啡肽,八种肽类激素、吗啡、纳洛酮无明显干扰;交叉反应MEK对ALS为3.3%、LEK对AMS为<1%。脑组织用0.0N盐酸抽提,中和后,直接作RIA。本方法已通过多种方法学考验。正常大鼠脑中EK浓度以下丘脑为最高,尾核次之。本法是灵敏、可靠和特异的。

 
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