比
- 与 比 相关的网络例句 [注:此内容来源于网络,仅供参考]
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As on other glaciated Ecuadorian mountains, Chimborazo's glacial ice is mined by locals (the so called Hieleros from Spanish Hielo for Ice) to be sold in the markets of Guaranda and Riobamba.
这里说的最厚是指从地心到峰顶的距离,之所以最厚,是因为地球的赤道半径最大,比极半径大近12公里,而钦博拉索峰位于赤道,就地心到峰顶的距离的距离来说,比珠穆朗玛峰要大。
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In clinical. acetylcholinesterase inhibitors reduce the breakdown of synaptic acetylcholine, have been modestly effective in improving the cognitive deficits of Alzheimer's disease.The goal of this work is to determine enzyme kinetics and mechanisms of acetylcholinesterase and butyrlcholinesterase inhibition by five cardiovascular drugs, lovastatin, simvastatin, amlodipine besylate, nifedipine, and hydralazine hydrochloride, and two benzodiazepines, diazepam and chlordiazepoxide hydrochloride. All drugs in this study are reversible mixed-type inhibitors of acetylcholinesterase and butyrylcholinesterase. The pKi values for acetylcholinesterase and butyrylcholinesterase inhibition by the cardiovascular drugs are linearly correlated with the molecular weights of the drugs with the slopes of 0.005 and 0.0021, respectively. Therefore, van der Waals' interactions between acetylcholinesterase and the cardiovascular drugs are stronger than those between butyrylcholinesterase and the drugs. This is probably due to a smaller active site gorge and a more significant peripheral anionic substrate binding site of acetylcholinesterase than those of butyrylcholinesterase.
本研究之目的系决定乙醯胆碱酯酵素和丁醯胆碱酯酵素被五种心脏血管药物lovastatin, simvastatin, amlodipine besylate, nifedipine、hydralazine hydrochloride和两种benzodiazepines:diazepam和Chlordiazepoxide hydrochloride的抑制作用之动力学及机转,这些药物都是乙醯胆碱酯酵素和丁醯胆碱酯酵素的可逆性、混合型之抑制剂,实验结果显示,五种心血管药物对於乙醯胆碱酯酵素及丁醯胆碱酯酵素抑制之pKi值和药物之分子量呈直线之关系,斜率分别为0.005及0.0021因此丁醯胆碱酯酵素,与心血管药物间之凡德瓦作用(van der Waals' )比乙醯胆碱酯酵素与心血管药物间者弱,这可能原因是丁醯胆碱酯酵素之活性区域比乙醯胆碱酯酵素之活性区域更宽广,但丁醯胆碱酯酵素之周边阴离子区域不及乙醯胆碱酯酵素之周边阴离子区域者明显重要,由於五种心血管药物对於乙醯胆碱酯酵素和丁醯胆碱酯酵素抑制之pKi值存在著线性关系表示此种抑制作用系经过共同之反应机理。
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The results of N/P ratio test show that the removal of nitrogen and phosphorus by immobilized Chlorella is influenced by N/P ratio.
氮磷比试验结果表明,固定化小球藻对氮磷的去除受氮磷比的影响。
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SDF from tea is a superior dietary fiber with high capacities of water holding, swelling and oil holding, as well as good absorption on cholesterol and sodium cholate.
结果表明:pH值对茶叶SDF提取的影响最大,其次依次为温度、酶添加量、时间、料液比;茶叶SDF提取的最佳工艺为:温度60℃、酶添加量0.08g/g、pH值9.0、时间2.0h、料液比1:20,提取率达53.72%,所得SDF具有较好持水力、膨胀力和持油力,对胆固醇、胆酸钠也有一定吸附作用,为一种优质膳食纤维。
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Result:The best prescription was : Lecithin: Sodium Cholate =8∶1,Lecithin:Proanthocyanidins =15∶1,sonde-type ultrasound time was 5 min,the entrapment efficiency of FNL was 67.13%,and the results revealed the FNLs were sphere like with the mean size of 168.3 nm,the mean Zeta potential was –86.6 mV.
结果:最佳处方和制备工艺条件为卵磷脂与胆酸钠的质量比为8∶1、卵磷脂与原花青素的质量比为15∶1、探头式超声5 min。包封率为67.13%,所得柔性纳米脂质体为类球形实体粒子,平均粒径168.3 nm,平均Zeta电位-86.6 mV。
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Moreover, chondriosome hypertrophy and vacuolar degeneration were found. The damage lessened in SVitC and LVitC groups. Both myofilaments and sarcomeres in IVIG and IVIG+VitC groups were almost normal, and the chondriosome was normal.
6心肌的电镜检测:对照组心肌肌丝排列紊乱,肌节断裂严重,线粒体肥大,并出现空泡变性;大、小剂量VitC组病变比对照组有所减轻;IVIG组和IVIG+VitC组肌丝排列紊乱明显减轻,肌节断裂比对照组减少,线粒体基本正常。
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The author or origin of this denomination, Christus, had, in the reign of Tiberius, been executed by the procurator, Pontius Pilate Annals xv.
作者或原籍本面额,基督,曾在腥风血雨的台比留,被处决的,由检察长,祂比拉多(县志第十五44段)。
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Each hue has an intrinsic tonal value in relation to others on the chromatic scale; orange is inherently lighter than red, for instance, and violet is darker than green.
每一色彩与色彩环中其它色彩有相对不同的光度:枯黄色固有地比红色明快,紫色则比绿色暗淡。
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The Thiobarbituric acid-reactive substances assay is a sensitivity HPLC assay that measures a chromogen that is produced by the reaction of thiobarbituric acid with malondialdehyde, which is an endproduct of lipid peroxidation.
硫巴比妥酸反应物分析,利用HPLC的灵敏特性分析硫巴比妥酸与丙二醛反应所产生的发色体,其为内生性脂质过氧化物。
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This article first antenna, microstrip theory, the circular polarization technology, the theoretical discussion, in this based on the microstrip antenna of circular polarization method - corner square microstrip antenna, and has done a design simulation , and then do the design and further research to improve and eventually get a resonant frequency (S11 reflection coefficient corresponding to the minimum frequency) for the 1.5GHz and 1.43GHz, the frequency of circular polarization for the 1.46GHz, S11 is less than -10dB relative bandwidth, the VSWR is less than 2 is about 8.8% relative bandwidth, axial ratio less than 3dB relative bandwidth of about 2.2% of the right circular polarization microstrip antenna design case, which proved very good the circular polarization microstrip antenna theory, also fully confirmed by a square corner design is a practical program, and select the appropriate regulation of sticks is indeed able to improve the performance of the antenna.
本文先对天线、微带理论、圆极化技术等进行了理论论述,在此基础上,提出圆极化微带天线的实现方法——切角方形微带天线,并对此做了设计仿真,后又对这一设计方案做了改进及进一步研究,最终得到一个谐振频率(反射系数S11 的最小值所对应的频率)为1.5GHz和1.43GHz,圆极化频率为1.46GHz,S11 小于-10dB 的相对带宽、驻波比小于2 的相对带宽约为8.8%,轴比小于3dB 的相对带宽约为2.2%的右旋圆极化微带天线的设计案例,从而很好的印证了圆极化微带天线理论,也充分证实了切角方形是一种切实可行的设计方案,而选取合适的调节枝则确能提高天线的性能。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力