使降低

The speed also affects combustion noise through variation of advance angle.

推迟供油提前角可以显著降低噪声。2、燃烧系统多参数分析2.1、喷孔数目在喷油压力不变时，减少喷油孔数量，可使促进燃油雾化，使着火延迟期缩短，因而有助于降低压力升高比，汽缸压力频谱线也相应降低，尤其是中、高频成分降的更多些。

The results of absorption spectra of chloroplasts showed that NO alleviated the effects of Cd on absorption spectra of chloroplast by raising the relative absorbance at 436 nm,480 nm and 470 nm,which caused lower contents of carotinoid and chlorophyll.

结果发现，Cd对叶绿素a、叶绿素b和类胡萝卜素含量都有不同程度的降低，NO处理缓解了Cd的影响，使叶绿体室温吸收光谱的吸收率提高；Cd导致686 nm处峰偏移4 nm，峰值降低33%，734 nm处峰值降低23%，外源NO缓解了Cd对光合系统的影响，使得叶绿体低温荧光光谱在686和734 nm的峰值分别仅下降17%和10%；以DCPIP为人工电子受体， Cd处理的叶绿体中DCPIP还原速率较慢，光合电子传递(H2O→DCPIP)速率降低1.5倍，外源NO处理显著缓解了Cd对电子传递链的抑制，使其光合电子传递速率恢复到对照的水平。

Under two levels of earing fertilization (N0 and N2), compared with 25℃ treatment, heat stress (35℃) accelerated the grain filling and resulted in less grain weight, and also reduced the two glutelin subunits content of both fertilization treatments 12.1% and 5.7% respectively, and reduced the prolamin content of them 6.7% and 4.9% respectively. Simultaneously, the polypeptides above 57 kD was increased 18.8% and 11.7% respectively, and grain crude protein content was also increased 0.56% and 0.35% respectively.

在N0和N2两个穗肥水平下，35℃高温处理均提高了子粒灌浆速度，明显降低了子粒单粒重；35℃高温处理还使谷蛋白的两个亚基的含量较25℃处理分别降低12.1%和5.7%，使醇溶蛋白含量分别降低6.7%和4.9%，同时却使谷蛋白组分中57kD及以上多肽的积累分别增加18.8%和11.7%，且子粒的粗蛋白含量也分别增加0.56%和0.35%。

Results showed that L-THP possessed negative inotropic and negative chronotropic action, lowed left ventricular pressure and it's infinitesimal calculus, decreased heart output in per min., shorten 〓 and 〓 of action potential of ventricular papillary muscle of guinea pig and even the plate-phase of action potential disappeared in larger dose group , but prolonged 〓. we studied transmembrane transportation of 〓 after administering L-THP , L-THP not only depressed uptake and increased release of Ca 2+ in normal myocardium, but also it showed stronger inhibition in cell injured by ISO, and fully eliminated the effect of ISO increasing uptake and decreasing release of 〓. By detecting the 〓 content of ventricular single myocyte using fluorescent probe Fluo-3/AM, results correspond to that done above, L-THP decreased 〓 content inside of cell significantly. Using whole-cell mode, we observed the effect of L-THP on Ica in ventricular single cell, it was found that L-THP decreased Ica, the effect increased with increasing it's dose, and had voltage, frequency-dependency. Dose highly corelated to effect, corelative constant is 0.87. When washing cell with normal tyre's solution, Ica could recover, which proved the blocked action of L-THP on calcium channel once again. Meanwhile, L-THP reduced production of MDA in heart injured by ISO in dose-dependent manner, improved content of GSH-Px, in case tissue or cell free from free radical damage.

结果显示，该药物具有负性肌力和负性频率作用，降低左室压及其微分，终使每分心输出量减少；缩短豚鼠心室乳头肌动作电位时程的〓和APD〓，大剂量使动作电位平台消失，〓延长；同位素示踪法研究证实L-THP抑制〓摄取，促进〓释放，降低细胞内的〓含量；单通道水平的研究证实，L-THP减少豚鼠心室肌单细胞内向钙电流，且具有剂量，电压，频率依赖性，其作用易于洗脱，药物剂量与Ica也具有高度相关性（相关系数r为-0.87）；L-THP还可抑制ISO损伤心肌组织所致的丙二醛含量增加，增加谷胱甘肽过氧化物酶的量，使组织细胞免受损伤。L-THP阻断L-型〓通道，抑制〓的摄取，促进〓的释放，降低细胞内〓含量L-THP作用的离子基础。

The results showed that(1) UV-B irradiation can inhibit the growth and photosynthetic rate of Nitzschia closterium,and the inhibiting effects were more significant when the time was prolonged;(2) UV-B irradiation decreased soluble sugar.In the initial 2 days,soluble sugar of N.closterium decreased rapidly,the soluble sugar on the 4~ day has...

结果表明：(1)随着UV-B暴露时间的延长，UV-B辐射对藻的生长以及光合速率有抑制作用，并且时间越长，抑制作用越明显；(2)UV-B辐射使小新月菱形藻可溶性糖含量降低，而且在最初的2d，UV-B辐射使可溶性糖含量降低迅速，第4天的可溶性糖含量稍有所升高但与第2天相比差异不显著，UV-B辐射第6天，可溶性糖含量又迅速降低；(3)UV-B辐射的可溶性蛋白含量在第2天明显升高，随后又快速下降；(4)对照组的还原型谷胱甘肽含量的变化随时间延长而升高，UV-B辐射第2天的GSH含量比初始状态(0d)的GSH含量稍有升高，但变化不明显，第2天之后，GSH含量随时间延长而快速降低；(5)对照组的过氧化物酶活性随时间延长而升高，UV-B辐射第2天的POD活性比初始状态(0d)的POD活性显著升高，第2天之后，POD活性随时间延长而快速降低。

The result showed that Insulin capsule could increase the insulin sensitivity of model rat of insulin resistance of typeⅡdiabetes mellitus by decreasing its blood sugar,decreasing its avoirdupois,improving its lipodystrophy and hemodynamics , increasing its GLUT4 translocation of skeletal muscle cell,increasing expression level of GK in liver cell, increasing expression level of PEPCK and decreasing level of TNF-αexpression in adipose tissue.

结果表明，胰苏灵胶囊可使2型糖尿病IR模型大鼠的血糖降低、体重减轻、脂质代谢异常得到改善、血流变异常得到改善；能使模型大鼠的脂肪组织TNF- a的mRNA表达水平降低，能使模型大鼠骨骼肌细胞的GLUT4的转位增加，能增加肝GK表达，能诱导PEPCK的转录。通过以上作用，胰苏灵胶囊可使2型糖尿病IR大鼠模型的IR得到改善。

Interestingly we found that high concentration of L-phenylalanine (Phe, 10mM) and DL-β-phenyllactic acid (PL, 10mM) decreased 〓, while phenylacetic acid (PAA, 10mM) could decreased 〓, then increased, finally decreased 〓. With the normal extracellular balance solution replaced by calcium-free and natrium-free balance solution, PL did not change its effect on intracellular free calcium.

我们用钙成像技术检测氨基酸及其衍生物对未成熟神经元胞浆游离钙浓度的影响，结果发现高浓度苯丙氨酸降低胞浆游离钙，苯乙酸使胞浆内钙浓度降低后升高最后又降低，苯乳酸使胞浆内钙降低更明显。

Results: in contrast with model group, SSM can (1) increase the survival rate of ARF in rats, cut down Scr and BUN at 24hr, improve renal function, slightly surpass Vp in its therapeutic effect;(2) mitigate the extent of renal pathologicchanges, decrease the numbers of renal tubule necroses and casts;(3) protect renal ultrastructure such as microvilli, mitochondria, endoplasmic reticulum of TEC, podocytic process of glomerulus epithelial cell,endothelial cell etc, better than Vp;(4) enhance SOD activity, lower MDA contents in renal cortex;(5) enhance NO contents in serum, reduce ET levels in plasma;(6) evidently cut down TNF- a contents in serum, superior to Vp;(7) antagonize calcium overload in TEC;(8) alleviate renal pathological changes in ARF metaphase (at 3d), advance regeneration and recovery of TEC, restore renal structure in ARF convalescence (at 5d), and better than Vp;(9) increase the expression of TEC PCNA and prepro EGFmRNA in ARF metaphase.

结果：与模型组相比，SSM能(1)提高ARF大鼠的存活率，降低24hr时Scr及BUN，改善肾功能，其疗效略优于维拉帕米；(2)减轻ARF肾脏病变程度，减少24hr肾小管坏死数及管腔内管型数；(3)对肾脏的超微结构如肾小管上皮细胞微绒毛、线粒体、内质网、肾小球上皮细胞足突、内皮细胞等形态结构均有一定的保护作用，其疗效略优于维拉帕米；(4)提高肾皮质SOD活性，降低MDA含量；(5)提高血清NO水平，同时降低血浆ET含量；(6)显著降低血清TNF-α的水平，疗效明显优于维拉帕米；(7)拮抗小管上皮细胞[Ca~(2+)]_i的升高；(8)使ARF中期(第3d时)肾组织病变较同期其它两组明显减轻，并使肾小管细胞再生修复提前，至ARF恢复期(第5d时)肾组织结构恢复重建良好；作用明显优于维拉帕米；(9)促进ARF中期肾小管上皮细胞PCNA的表达及EGF前体mRNA的合成，从而增加EGF的合成释放，而维拉帕米无此作用。

Treatment of corn stover silages with cellulase and lactobacillus had improved DM digestibility 8% and decreased VBN/TN 33%, butyric acid-to-total acid ratios 81%, NDF content 10%, ADF content 7%. That had approved their quality be improved obviously.

乳酸菌和纤维素酶的共同作用可以使玉米秸秆青贮料的干物质消失率提高8％，使氨态氮与总氮的比值降低33％，丁酸占总酸的比例降低81％，同时使NDF、ADF的含量分别降低10％和7％，说明玉米秸秆青贮料的质量明显改善。

The PPO activity of genotype 2AL/2DL,2AL/2DH,2AH/2DL,2AH/2DH get higher one by one for one degree40-60AU/min·gand their activity level is low medium,medium,medium high,high medium,respectively;and they make activity decrease 30.1%,decrease 7.8%, increase 8.3%,increase 30.0%,respectively.8.2AL and 2DL gene make kernel PPO activity decrease 25%and 10%, respectively.2AH and 2DH gene make kernel PPO activity increase around 17%.2AL, 2DL,2AH,2DH keep PPO activity at low,medium,medium high,medium high level, respectively.

四种基因型2AL/2DL、2AL/2DH、2AH/2DL、2AH/2DH的籽粒PPO活性逐渐升高一个档次(40-60AU/min·g)，且其活性分别处于低偏中、中等、中偏高、高偏中水平，可分别使活性降低30.1%、降低7.8%、升高8.3%、升高30.0%。8.2AL和2DL基因分别使籽粒PPO活性降低25%和10%。2AH和2DH基因均可使籽粒PPO活性增加17%左右。2AL、2DL、2AH、2DH基因分别使籽粒PPO活性维持在低、中等、中高、中高水平。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。