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linear
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  线性关系
    In the examination of propofol,the calibration curve was linear in the range of 6.73-323.4 ng(r= 0.9991),and the quantitation limit was 0.016 ng(S/N=10).
    丙泊酚检查的定量限为0.016 ng(S/N=10),在6.73~323.4 ng范围内,线性关系良好(r=0.9991)。
短句来源
    Method:The wavelength with absorption maximum in corresponding medium was detected by UV.Result:There was a better linear correlation in the range of 1~200μg/mL(r=1.000)in phosphonic acid buffer(pH=6.8).
    方法:采用紫外分光光度法,对在不同介质中所对应的最大吸收波长处进行检测。 结果:在pH=6.8磷酸缓冲溶液中,美沙拉嗪溶液在1~200μg/mL(r=1.000)范围内吸收值与其浓度呈良好的线性关系
短句来源
    ResultsBoth aspartate and ornithine showed good linear(r=0.999 9) in the range of 125-2 500 μg/mL. The average recovery was 99.92% and 100.25% respecttively.
    结果门冬氨酸与鸟氨酸都在125~2 500μg/mL浓度范围内有良好的线性关系(r=0.999 9),两者的平均回收率分别为99.92%与100.25%,RSD分别为0.34%与0.70%。
短句来源
    Result The calibration curves of Diphenhydramine hydrochloride were linear in the range of 0.2~0.6 mg/ml,(r=1.0000);
    结果盐酸苯海拉明检测浓度在0.2-0.6 mg/ml范围内呈良好的线性关系,r=1.0000;
短句来源
    There is a good linear relationship between the concentration and peak area in the range of Antipyrine 98.2~147mg and caffeine 9.99~15.0mg.
    安替比林在98.2~147mg范围内; 咖啡因在9.99~15.0mg范围内,进样量与峰面积值呈良好的线性关系
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  “linear”译为未确定词的双语例句
    Discussion on the Application of Linear Programing Decision to Hospital Drug Production
    线性规划决策在医院药品生产中应用的探讨
短句来源
    DETERMINATION OF CIPROFLOXACIN HYDROCHLORIDE BY GRAN LINEAR TITRATION
    盐酸环丙沙星的Gran线性滴定测定
短句来源
    The linear relation was good under the range of 1.150~10.260 μg/mL,average accuracy and precision were accord to the standards.
    采用紫外分光光度法进行片剂质量浓度、溶出度和溶解度测定,结果表明在1.150-10.260μg/mL范围内,线形关系良好,精密度和回收率符合要求.
短句来源
    Results The linear range was 0.5~200.0mg·L-1(r=0.999 9).
    结果头孢他啶血浆浓度在0.5~200.0mg·L-1范围内线性关系良好(r=0.9999)。
短句来源
    The calibration curves of telmisartan and indapamide were linear in the concentration range of 50~150μg·ml-1(r=0.999 9)and 5~15μg·ml-1(r=0.999 8),respectively.
    替米沙坦、吲哒帕胺分别在50~150μg·ml-1,r=0.9999; 5~15μg·ml-1,r=0.9998,浓度范围内线性关系良好。
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  linear
Reductive group actions on affine quadrics with 1-dimensional quotient: Linearization when a linear model exists
      
Such an action is called linearizable if it is equivalent to the restriction of a linear orthogonal action in the ambient affine space of the quadric.
      
A linear model for a given action is a linear orthogonal action with the same orbit types and equivalent slice representations.
      
We prove that if a reductive group action on an affine quadric with a 1-dimensional quotient has a linear model, then the action is linearizable.
      
We find presentations for the irreducible crystallographic complex reflection groupsW whose linear part is not the complexification of a real reflection group.
      
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Cardiac hemodynamics and myocardial utilization of carbohydrates during early stage of acute potassium antimony tartrate (PAT) intoxication were investigated in order to elucidate the relationship between functional and metabolic disturbances of heart. In 12 dogs, cardiac output was estimated by Fick's principle while coronary blood flow and myocardial metabolism were studied by coronary sinus catheterization. This study was designed in paired experiments. PAT 10 mg/kg was administered intravenously. Both control...

Cardiac hemodynamics and myocardial utilization of carbohydrates during early stage of acute potassium antimony tartrate (PAT) intoxication were investigated in order to elucidate the relationship between functional and metabolic disturbances of heart. In 12 dogs, cardiac output was estimated by Fick's principle while coronary blood flow and myocardial metabolism were studied by coronary sinus catheterization. This study was designed in paired experiments. PAT 10 mg/kg was administered intravenously. Both control and experimental observations were carried out on the same dog, at intervals of 1—2 weeks. The results of both periods were analyzed by t test of individual and group comparisons, aimed to exclude the possible influences other than PAT. During the first hour of the control period, the hemodynamic changes were insignificant, while both arterial and venous levels of lactic acid and pyruvic acid were elevated and the myocardial consumption of oxygen and pyruvic acid was augmented. During the 4th hour of the control period, the aortic blood pressure, total peripheral resistance and pulmonary vascular resistance were increased, while the cardiac index and the work of both ventricles reduced. These alterations might be ascribed essentially to the action of the anesthetic-sodium pentobarbital. One hour after PAT administration, the work of both ventricles was apparently not altered, while arterial and venous levels of glucose, lactic acid and pyruvic acid were elevated, A—V difference and myocardial consumption of lactic acid were increased. The oxygen extraction ratios of carbohydrates were likewise augmented. The mechanical efficiency of left ventricle was diminished as a result of augmented energy cost without corresponding increase of work. Four hours after PAT administration, aortic and pulmonary blood pressure, work of both ventricles and coronary blood flow were all decreased. Meanwhile, the myocardial energy cost was not reduced correspondingly. Hence, the mechanical efficiency of left ventricle was lowered. Thus it was deduced that cardiac functional impairment during PAT intoxication was due to metabolic derangement of the heart. However, the myocardial extraction of carbohydrates remained a linear function of their heightened arterial concentration, and the percentage of myocardial anaerobic metabolic rate was not increased. So it was suggested that the aerobic myocardial metabolism was not impaired, and that the lowered mechanical efficiency resulted probably from the impairment of storage or utilization of energy. The elevated level of glucose, lactic acid and pyruvic acid in blood during early stage of PAT intoxication indicated that the anaerobic glycolysis of the body as a whole was enhanced.

为闡明吐酒石心肌中毒时代謝与机能障碍的关系,研究了急性中毒早期狗心血流动力和心肌利用糖类能源的变化。狗12只,按Fick原理測心輸出量,用冠状窦插管法研究冠脉流量和心肌代謝。采用配对实驗,每狗实驗2次,观察对照期和肺动脉內注射吐酒石10毫克/公斤后变化。实驗結果作t测驗个别比較和组間比較以排除吐酒石外的影响因素。对照期1°时心脏血流动力变化不显著,但动靜脉中乳酸、丙酮酸增高,心肌耗氧量、丙酮酸消耗量增加。4°时主动脉压、总外周阻力和肺血管阻力增高,心脏指数与左右心室作功量减少。这些可能主要是戊巴比妥鈉的作用。吐酒石后1°,左右心室作功量不增加,而动靜脉中糖、乳酸、丙酮酸增加,乳酸的动靜脉差和心肌消耗量增加,糖类在心肌內氧化时所消耗氧量占心肌耗氧总量的%增加。因作功不增而耗能增加,故左室功率降低。吐酒石后4°主动脉压、肺动脉压、左右心室作功量及冠脉流量均减少,而心肌耗能量不减少,故左室功率也减少。結果說明吐酒石損害心肌机能与心肌代謝紊乱有关。但心肌仍能按比例提取糖类能源,且心肌无氧代謝%不增,說明心肌有氧代謝(能量釋放)无障碍。推測心功率降低可能是干扰了氧化磷酸化反应(能量貯存)或能量轉换(能量利用)的結果。吐...

为闡明吐酒石心肌中毒时代謝与机能障碍的关系,研究了急性中毒早期狗心血流动力和心肌利用糖类能源的变化。狗12只,按Fick原理測心輸出量,用冠状窦插管法研究冠脉流量和心肌代謝。采用配对实驗,每狗实驗2次,观察对照期和肺动脉內注射吐酒石10毫克/公斤后变化。实驗結果作t测驗个别比較和组間比較以排除吐酒石外的影响因素。对照期1°时心脏血流动力变化不显著,但动靜脉中乳酸、丙酮酸增高,心肌耗氧量、丙酮酸消耗量增加。4°时主动脉压、总外周阻力和肺血管阻力增高,心脏指数与左右心室作功量减少。这些可能主要是戊巴比妥鈉的作用。吐酒石后1°,左右心室作功量不增加,而动靜脉中糖、乳酸、丙酮酸增加,乳酸的动靜脉差和心肌消耗量增加,糖类在心肌內氧化时所消耗氧量占心肌耗氧总量的%增加。因作功不增而耗能增加,故左室功率降低。吐酒石后4°主动脉压、肺动脉压、左右心室作功量及冠脉流量均减少,而心肌耗能量不减少,故左室功率也减少。結果說明吐酒石損害心肌机能与心肌代謝紊乱有关。但心肌仍能按比例提取糖类能源,且心肌无氧代謝%不增,說明心肌有氧代謝(能量釋放)无障碍。推測心功率降低可能是干扰了氧化磷酸化反应(能量貯存)或能量轉换(能量利用)的結果。吐酒石急性中毒早期,血中糖、乳酸、丙酮酸相应升高,提示全身无氧糖酵解加强。

The amounts of methicillin remaining in the buffered solution over the pH range 1.5—9.1 after the period of storage have been determined by visible spectrophotometry in the form of ferric-hydroxymate complex from standpoint of chemical kinetics. The linear relation of logarithm of concentration of methicillin against time might be considered as that the degradative reaction of methicillin is a first-order reaction at a fixed pH value. In aqueous solution the methicillin can occur in two different forms,...

The amounts of methicillin remaining in the buffered solution over the pH range 1.5—9.1 after the period of storage have been determined by visible spectrophotometry in the form of ferric-hydroxymate complex from standpoint of chemical kinetics. The linear relation of logarithm of concentration of methicillin against time might be considered as that the degradative reaction of methicillin is a first-order reaction at a fixed pH value. In aqueous solution the methicillin can occur in two different forms, i.e., as the ionized form and the unionized acid form. The ratio of the concentration of the ionized methicillin to that of its unionized form changes with variation of the pH value and the hydrolysis of them are catalyzed by H+, H_2O and OH~- respectively. The decomposition of methicillin may be accounted for by the six rate constants of bimolecular reaction and the dissociation constant of methicillin. Judging from the rate-pH profile and its theoretical analysis the rate (hr~(-1)) of reaction over the whole pH range at 35℃ can be practically represented by the following equation: k=3.39×10~2[H~+] /1+1.59×10~(-3)/[H~+]+2.02×10~3[H~+]+2.24×10~(-4)+3.02×10~3[OH~-]/1+[H~+]/1.59×10~(-3) A good agreement was obtained between the calculated curve and the experimental curve in pH value less than 5.6 and more than 8.5. The difference between calculated and experimental values may be considered to be due to the effect of the buffer components. In the rate-pH curve of methicillin it will be noted that at the lower pH region (pH 3.53) and at the higher pH regions (pH 9.1) the logarithm of the apparent rate constant is a linear function of pH value with a slop of near -1 or +1.It may be considered that these correspond to the reactions between ionized form and H~+ with a bimolecular velocity constant (k_4) of 2.02×10~3 (1.mol~-.hr.~(-1)) and between the ionized form and OH~- with bimolecular velocity constant (k_6) of 3.02×10~3. The values of k_4 and k_6 obtained at 35℃, 45℃, 55℃, are given.From the linear relation between log k_4 and the reciprocal of absolute temperature and between log k_6 and the reciprocal of absolute temperature the Arrhenius equations for the reactions were obtained as follows: log k_4=- 4.41×10~3/T+17.6 log k_6=- (4.66×10~3/T+18.6 The half-life of methicillin at pH 1.50 and 35℃ experimently was found to be four minutes while at pH 6.40 and 35℃, 224 hours. The pH of the minimum rate of degradation of methicillin is 6.75 at 35℃, 6.95 at 25℃ and 7.04 at 20℃.

本文以化学动力学的方法,研究了2,6-二甲氧苯基青霉素钠水溶液在不同pH及温度下的稳定性。结果表明,本品的分解反应在pH恆定时为一级反应。由log K-pH曲线图象的理论分析,确定35℃时表观分解速度常数的全程公式。从反应速度与温度的关系,分別求出离子型青霉素H~+催化及OH~-催化二级常数的Arrhenius,方程式。本品在pH1.5及温度35℃时的半衰期为4分钟;而在pH6.4及35℃时为224小时。本品在35℃时的最稳定的pH值为6.75;而在20℃时为7.04。

The direct detection of plasma angiotensin Ⅱ (AT Ⅱ) by radioimmunoassay with 0.5 ml of human blood was achieved by utilizing fine-quality antisera, ~(125)Ⅰ. AT Ⅱ of high speoifio aotivity and the double antisera separation technique.The detecting limit for competitive inhibition ourve (n =28) was 3.6 ± 1.6 pg (m. ± S. D.), and the preoision was 4.7 ±1.4% (m. ±S. D.).The C. V. in plasma measurement were 7~14% for the within assay, and 8.7~ 18 % for the between assays respectively.AT Ⅱ showed a linear increase...

The direct detection of plasma angiotensin Ⅱ (AT Ⅱ) by radioimmunoassay with 0.5 ml of human blood was achieved by utilizing fine-quality antisera, ~(125)Ⅰ. AT Ⅱ of high speoifio aotivity and the double antisera separation technique.The detecting limit for competitive inhibition ourve (n =28) was 3.6 ± 1.6 pg (m. ± S. D.), and the preoision was 4.7 ±1.4% (m. ±S. D.).The C. V. in plasma measurement were 7~14% for the within assay, and 8.7~ 18 % for the between assays respectively.AT Ⅱ showed a linear increase concomittantly with the inorement of the plasma from 0.1 to 1.5 ml.AT Ⅱ added into the plasma could be quantitatively recovered (97~117%).There was no evidenoe of interference by the addition of eight peptide hormones, human plasma proteins, proteolytio enzymes and enzyme inhibitors.The mean concentrations of the peripheral venous plasma AT Ⅱ of normall persons on free diet were as follows: 26±10 pg/ml(n=54) while assuming a recumbent position for 1.5 hour, with a negative correlation to 24 hours urinary sodium exeretion (p<0.01); 46±22 pg/ml (n=17) after assuming an erect position for 2 hours.The plasma AT Ⅱ values were markedly elevated after provocation either with a low sodium diet or an intramuscular injection of furosemide (p<0.01).As a sensitive, speoifio, accurate and simple method for the deteotion of minute quantities of plasma AT II, this method should be useful for clinical investigations and for research on the renin-angiotensin system.

应用优质抗血清、高比放射度~(125)Ⅰ·ATII及双抗体分离技术,建立了直接测定0.5毫升人血浆中血管紧张素Ⅱ(ATII)的放射免疫分析法。竞争抑制曲线的最小检出量3.6±1.6微微克,精密度4.74±1.4%(28次的m±S.D.)。血浆测定的变异系数为批内7~14%,批间8.7~18%。加入血浆中的ATII可定量回收(97~117%)。随待测血浆加入量增大(0.1至1.5毫升/孵育管),测得ATII量线性增加。8种肽类激素、人血浆及使用的酶抑制剂未显示出明显的干扰。正常人普通饮食时外周静脉血浆ATII浓度:卧位1.5小时以上后26±10微微克/毫升(n=54),与24小时尿钠排出量呈负相关(p<0.01);立位2小时后464±22微微克/毫升(n=17)。低钠饮食或肌肉注射速尿引起血浆中ATII显著激发(p<0.01)。本法可灵敏、精密、特异地正确度量微量ATII,操作简单,每批可测标本数较大。本法的建立有助于各领域中涉及肾素——血管紧张素系统之临床或实验研究工作。

 
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