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heat exposure
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  热暴露
     Results ①Compared with NC group, MAP, Ps and Pd in HS and SC group were lower and HR was higher at 73 min after after heat exposure.
     结果 ①热暴露 73min时 ,HS组与SC组大鼠的MAP、Ps、Pd值明显低于NC组 ,HR值高于NC组。
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     Results showed that (1) plasma LPS level in rabbits increased obviously during their heat exposure and reached 0.285 and 0.249 ng/ml before death from 0.139 and 0.131 ng/ml before exposure for Groups Ⅰ and Ⅱ,respectively (P<0.01);
     结果:(1)在动物热暴露过程中,其血浆LPS浓度明显增加,临近死亡时,Ⅰ、Ⅱ组分别由实验前的0.139、0.131ng/ml升高至0.285、0.249ng/ml(P<0.01);
短句来源
     Objective To show the changes of heat shock protein 70(HSP70) expression at cellular level in different heat exposure stages and the significance of HSP70 expression in heat exposure organism.
     目的 研究热暴露不同阶段对大鼠肝与心肌细胞热休克蛋白 70 (HSP70 )表达的影响 ,为探讨HSP70在细胞水平的表达机制 ,以及HSP70对热暴露机体的意义提供实验依据。
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     Heat stress was induced by Tdb (39-40)℃, Twb (32±1)℃ heat exposure for 90min.
     高温环境应激条件 :干球温度为 ( 39~ 40 )℃ ,湿球温度为 ( 32± 1 )℃ ,相对湿度为 60 %左右 ,热暴露 90 min。
短句来源
     (3) With the onset of acute heat exposure, plasma cortisol concentrations increased (P<0.05) from 11.9ng/ml to 25.1ng/ml within 120min and maintained 24.7ng/ml at 180min. After the end of the heat exposure, plasma cortisol levels gradually declined.
     3.猪在急性热暴露期间血浆皮质醇浓度逐渐上升,自热暴露前的11.9ng/ml,经120min升至25.1ng/ml,180min时仍维持在24.7ng/ml,显著高于热暴露前(P<0.05),热暴露结束后逐渐下降。
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  热应激
     The result showed that plasma Cu,Fe,Mn,Co,Ca,Na,Mg,K,Cr concetation were affected by acute heat exposure significantly,whereas,P and Zn concentiation has no reaction to the acute heat exposure.
     结果表明 ,急性热应激显著影响血浆中Cu、Fe、Mn、Co、Ca、Na、Mg、K、Cr的浓度 (P <0 .0 5) ,而对P、Zn浓度无影响 (P >0 .0 5) ;
短句来源
     On the heat exposure of the 14th and 21st days, 6 animals both in HS and in HA were exposed to heat in the same chamber.
     其中半数动物继续热暴露至21天,每天热暴露时间延长至100min,于热暴露第14天和第21天热应激组各6只动物与热习服组同时热暴露。
短句来源
     Heat stress protein 70(HSP70)mRNA of K 562 cell was analyzed by RT PCR,and the chemosensitivity of K 562 cell was tested by MTT method before and after heat exposure.
     方法:对K562细胞预热应激,用RT-PCR检测细胞热应激蛋白70(HSP70),并用MTT比色法观察细胞对化疗药物体外敏感性的变化。
短句来源
     The results indicated that heat exposure at 36℃ could increase body weight(P<0.01),decrease plasma Triiodothyronine(T) concentration(P<0.05),and decrease the livability after heat challenge(36.5~37.0℃,4h)at the age of 42d(P<0.05).
     结果表明:4日龄36℃的高温处理可提高肉仔鸡42日龄体重、降低血清中三碘甲腺原酸(T3)浓度(P<0.05)及降低42日龄时第二次热应激(36.5~37.0℃,4h)肉仔鸡的存活率。
短句来源
     (2)After heat exposure to 42 ℃ for 10,20,30,45,60,90 min, and heat exposure to 39 ℃,42 ℃,45 ℃,the trend of changing in expression of Hsp70 was similar to that of JWA protein,and HSF1 was expressed in earlier stage.
     (2 )在 4 2℃不同时间 (10、2 0、30、4 5、6 0、90min)和不同温度 (39℃、4 2℃、4 5℃ )处理下 ,Hsp70表达水平的变化与JWA蛋白表达水平的变化趋势基本相似 ,且HSF1在热应激早期表达。
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  “heat exposure”译为未确定词的双语例句
     (2)the rectal temperature(Tr),heart rate,men arterial pressure after heat exposure were:G group 42 5±0 4℃、459±9 9beats/min,11 5±0 8kPa;
     (2 )动物受试 80min后肛温、心率 ,平均动脉压分别为 :G组 42 5±0 4℃、45 9± 9 9beats/min、11 5± 0 8kPa ;
短句来源
     Theprevalence rates of hypertension for maleworkers in two groups were 9.24% (adjustedrate 10.30%) and 6.29% (adjusted rate5.01%) respectively, the significal differencewas found (X~2=7.25, P<0.01),and the ratealso increased with the standing and thedegree of heat exposure
     高温男工高血压患病率为9.24%(标化率为10.30%),对照男工为6.29%(标化率为5.01%),两组比较有显著差异(x~2=7.25,P<0.01)。 高温男工高血压患病率随着高温工龄和高温暴露等级的增加而明显增加。
短句来源
     The results revealed that ① hyperthermal exposure could increase Cu content in rat hippocampus significantly, ②after heat exposure, Cu content in hippocampus was higher than in cerebral cortex and cerebellum.
     实验结果发现:①高温暴露可使海马铜含量显著增加:②高温暴露后,海马铜含量比小脑和大脑皮层铜含量高,而在室温对照大鼠,小脑铜含量却比大脑皮层和海马铜含量高。
短句来源
     Methods After the HepG2 cells were treated with ten repeated cycles of heat exposure at 43℃ for 80 minutes twice a day,the rate of apoptosis was analyzed,and the mRNA and protein expressions of Bcl-2 and Bax were detected.
     方法HepG2细胞经43℃加热,每次80m in,2次/d,共10个循环后,检测其细胞凋亡率、Bc l-2和Bax基因/蛋白的表达。
短句来源
     [Methods] After the HepG2 cells were treated by ten repeated cycles of heat exposure at 43 ℃ for 80 minutes twice a day, the doubing time of cells was analyzed, and the cells cycle and cyclin D1 were detected.
     方法HepG2细胞43℃加热,每次80分钟,每天两次,共10个循环后,分析细胞倍增时间,检测细胞周期及细胞周期素D1的表达。
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  heat exposure
The dynamics and the level of accumulation of small heat shock proteins (sHSP group 21-27) after a heat exposure were studied in three Drosophila species differing in thermotolerance.
      
Most species of the virilisgroup exhibited positive correlation between the HSP70 accumulation after heat exposure and thermotolerance; however, this correlation was absent in some species and strains.
      
The patterns of induction of various heat shock protein (HSP) families after heat exposure in a wide spectrum of Drosophila species were compared.
      
Heat exposure significantly reduced the contents of TBP, TAF proteins, TFIIB, and TFIIF (RAP30), while these proteins were detected in ecdysone-inducible loci.
      
After the heat exposure of untreated and Ca2+-treated seedlings, differential changes in MDA content and in activities of guaiacol peroxidase, SOD, and catalase were observed.
      
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Experiments were performed on 91 rabbits to assess whether the effect of acupuncture analgesia (AA) could be modified by the activation or blockade of the α-receptors in discrete brain areas. Minute amount of α-agonist clonidine (3.5μg/5μl) or α-antagonist phentolamine (10μg/5μl) was injected into each brain area through chronically implanted cannula within 20 minutes. Finger pressing of the Kuenlun point which was proved to be of the same effectiveness as manual needling was given during the last 10 minutes...

Experiments were performed on 91 rabbits to assess whether the effect of acupuncture analgesia (AA) could be modified by the activation or blockade of the α-receptors in discrete brain areas. Minute amount of α-agonist clonidine (3.5μg/5μl) or α-antagonist phentolamine (10μg/5μl) was injected into each brain area through chronically implanted cannula within 20 minutes. Finger pressing of the Kuenlun point which was proved to be of the same effectiveness as manual needling was given during the last 10 minutes of intracerebral injection.The latency of the head-withdrawal reaction induced by radiant heat exposure was taken as the nociceptive index. The effect of intracerebral injection on AA was correlated with the site of injection as varified on brain slices at the end of the experiment. The main results were as follows:The effect of AA was found to be significantly attenuated by the injection of α-agonist clonidine into bilateral habenula, nuclei accumbens and periaquaductal grey and significantly augmented by the injection of α-antagonist phentolamine into bilateral habenula. No significant effect on AA was noticed when the same drugs were injected into bilateral amygdala. Nor was there any significant effect on AA when the cannula was directed outside the above mentioned nuclei or into the third ventricle.It is concluded that activation of the α-receptors in habenula, and perhaps in nucleus accumbens and periaquaductal grey as well, seems to exert a powerful antagonistic influence on the effectiveness of AA in the rabbit. The possible mechanisms of this antagonistic action were discussed.

本文以微量的α受体激动剂氯压啶或α受体拮抗剂酚妥拉明经慢性埋藏套管注入家兔脑内四个核团:伏核、杏仁核、缰核和导水管周围灰质(PAG),观察其对指压穴位镇痛作用的影响。氯压啶注入双侧缰核、伏核和PAG可显著对抗指压镇痛,酚妥拉明注入缰核则有显著加强作用。将同量药物注入以上三核团的周围区域或杏仁核内均无效。实验结果说明中枢儿茶酚胺可通过α受体对抗指压镇痛,这种效应具有明显的部位特异性:缰核在该效应中占有极重要的位置,PAG和伏核可能也起重要作用.

A study was made of the correlation between the mechanical properties and the microstructure variation of an Fe-Ni-Cr base superalloy on prolonged heat exposure. It was found that the notch sensitivity of the alloy is closely related to TiC film precipitated along grain boundaries. With raising temperature and prolonging time of aging treatment, the TiC films coarsen gradually into block so that the notch sensitivity vanished from the alloy. Because of the minute block-shaped σ-phase is distributed along...

A study was made of the correlation between the mechanical properties and the microstructure variation of an Fe-Ni-Cr base superalloy on prolonged heat exposure. It was found that the notch sensitivity of the alloy is closely related to TiC film precipitated along grain boundaries. With raising temperature and prolonging time of aging treatment, the TiC films coarsen gradually into block so that the notch sensitivity vanished from the alloy. Because of the minute block-shaped σ-phase is distributed along the grain boundaries, the high temperature tensile elongation and the rupture toughness of the alloy as well as its notch sensitivity ilimination could be improved. However, its room temperature tensile elongation and impact ductility are reduced, yet no great harm was influenced upon them as compared with the same contents of TiC and boride.

本文较详细地研究了一种铁镍铬基合金长期时效过程中力学性能变化与组织结构的关系。合金的缺口敏感性与薄膜状TiC沿晶界析出有着密切的关系,随着时效温度的提高和时效时间的延长,晶界薄膜状TiC逐渐变为块状,因而缺口敏感得以消除。由于σ相数量很少,并呈块状分布,因此它能提高高温拉伸塑性及持久延伸率,对消除缺口敏感性也起到一定有利作用,但使室温拉伸塑性及室温冲击韧性下降,其不良影响比TiC及硼化物要小。

The authors tried to increase the intake of water and heat-tolerance of the people working in the heat by regulating osmotic pressure and taste of the water and drinking at frequent intervals. The experimental results showed that during heat exposure for 45 minutes the ATr in the rabbits, perfu-sed with the iso-osmotic Nad solution was 0.35-0.46℃ lower than that of the control group and the osmotic pressure in the serum was maintained normal throughout heat exposure. The survival time in those groups...

The authors tried to increase the intake of water and heat-tolerance of the people working in the heat by regulating osmotic pressure and taste of the water and drinking at frequent intervals. The experimental results showed that during heat exposure for 45 minutes the ATr in the rabbits, perfu-sed with the iso-osmotic Nad solution was 0.35-0.46℃ lower than that of the control group and the osmotic pressure in the serum was maintained normal throughout heat exposure. The survival time in those groups perfused with iso-osmotic NaCl solution before and after heat exposure and at frez-quent intervals was 40-46 min longer than that of control.When young men worked with medium intensity ( 4.63cal/min) in the hot chamber ( DB 37-40℃, GT 41-45℃, RH 47-65% ) for three hours, the amount of fluid intake in subjects drinking multi-electrolyte solution containing K+,Na+,Ca++,Mg++,Cl-,PO43-,vitamins, flavoring agents etc at frequent intervals was 68.2% greater than that, of drinking water. ATr and heart rate were 0.2℃,8.7b/min lower than those of drinking water respectively(P<0.05), the decrease of the plasma volume was 4.2% less than that of the latter (P< 0.05). Therefor a benificial programme of drinking water was suggested for people working in hot environments.

给暴露于热环境下的家兔不同次数灌注等渗的NaCl溶液可以提高其耐热能力,在受热45分钟内,肛温增加值比对照低0.35—0.46℃,血浆渗透压在整个受热期也稳定在正常水平。热环境下的活存时间也有明显延长。热环境下(DB37—40℃,RH47—65%)做中等强度劳动(4.63卡/分)的人多次饮用含多种电解质及维生素C,蔗糖等的等渗饮料,可提高饮水量,减少失水量,其肛温增加值,心率分别比饮白开水的低0.2℃和8.7次/分(p<0.05),血浆容量的减少也比饮白水的少4.2%(p<0.05)。文中提出在热环境下劳动时,为防止热损伤发生及提高耐热能力的补水方案。

 
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