- 更多网络例句与使升高相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The blood pressure of.1 of pathology physiology mechanism that SAS causes CVD breathes time-out to be able to bring about airframe in elevatory Morpheus anoxic, sympathetic is excessive and excited, element of serous catechu phenolic amine, kidney and hemal endodermis element are elevatory, bring about hemal easy of hemal convulsion; to shrink the function is disorder, can make blood-vessel flowing flesh happening reframes and fleshy, systemic blood-vessel obstruction adds element of the kidney when; is chronic and anoxic, system of hemal and nervous element is activationed, bring about blood pressure to lift. Obstruction of way of energy of life of patient of OSAS of disease of blood of 1.2 low oxygen increases, cause air current to interrupt, breath pauses, at the same time airframe gets used to low oxygen environment gradually, breathing centre drops to low oxygen and sensitivity of disease of blood of tall carbonic acid, breath suspends a frequency increasing, farther aggravating airframe is anoxic. 1.3 heads are self-adjusting the function drops normal person changes quickly in systematic circulation blood pressure when, the head can be passed adjust independently functional generation protects effect, make change of cerebral blood flow not big.
SAS诱发CVD的病理生理机制。1血压升高睡眠中呼吸暂停可导致机体缺氧,交感神经过度兴奋,血浆儿茶酚胺、肾素以及血管内皮素升高,导致血管痉挛;血管舒缩功能紊乱,可使血管平滑肌发生重构和肥厚,全身血管阻力增加;慢性缺氧时肾素—血管紧张素系统被激活,导致血压升高。1.2低氧血症OSAS患者气道阻力增加,造成气流中断、呼吸暂停,同时机体逐渐适应低氧环境,呼吸中枢对低氧和高碳酸血症敏感性下降,呼吸暂停次数增加,进一步加重机体缺氧。1.3脑自动调节功能下降正常人在体循环血压快速变化时,脑可通过自主调节功能产生保护效应,使脑血流量变化不大。
-
The effect of tribology factors on bearing vibration is studied experimentally. AR model and WPT are used to processing the normal arid abnormal signals. The results are as follows:1. The vibration of ball bearings is caused by the tribology action of contact pairs of ball and ring races and has the essential of tribo-dynamics. Any factors affecting the tribology characteristics of contact pairs will affect vibration and noise of bearings consequently.2. Vibration characteristics of bearing keep almostly unchanged with the increasing of axial load expecting the increasing of nature frequencies. When radial load increasing with axial load unchanged, nature frequencies keep unchanged but some new vibration peaks appears in the spectrum.3. Vibration amplitudes are damped and nature frequency are enhanced with sufficient lubrication. Vibration and noise of bearings increase obviously and roar can happen and the contact surfaces scratch slightly under insufficient and unclean lubrication state. Bearing will be disabled in a few minutes without any lubrication.4. Bearing vibration is unstable under low speed. With the speed increasing, the vibration become stable and natural frequencies increase slightly but the amplitudes increase apparently.5. Bearing vibration can be excited only by some harmonics ofwaviness without lubrication and by all harmonics with lubrication based on the theoretical analysis.6. The nature frequencies of ball bearings decrease with the increasing sizes. When international clearance increasing, nature frequencies decrease in radial and increase in axial and angular and the amplitudes increase in radial and decrease in axial and angular. When the number of balls increasing, nature frequencies increase and amplitudes decrease. When the pitch diameter increasing, axial nature frequency increase and others nearly keep no change. When outer race groove curvature radius increasing, nature frequencies increase in radial and decrease in axial and angular and amplitudes keep no change in radial and increase in axial and angular. When inner race groove curvature radius increasing, nature frequencies decrease and amplitudes increase.7. The distortion in amplitude and frequency components of bearing vibration signals picked up by the present probe measurement method is founded and right conclusions cannot be achieved by the signals. When accelerometer is rigidly screwed with steel stud onto a flat outer surface of a ball bearing, vibration signal can be got without distortion and the reliability of research on bearing vibration is assured.8. AR model is suitable for large samples of bearing vibration signals, square root of length of samples can be used as the upper limitation of order determination and the FPE order selection criterion is effective. Many advantages of AR spectrum are founded over the classical based on FFT.9. Time-Frequency analysis is necessary for abnormal noise of ball bearings. WPT overcomes the principle shortcomings of STFT and proved to be a best tool to process the abnormal signals.
理论分析和试验研究表明: 1球轴承振动是钢球—滚道接触副中的各种摩擦学作用引起的,具有摩擦动力学的本质,任何对接触副的摩擦学特性有影响的因素都将对球轴承的振动和噪声特性产生影响; 2中心轴向载荷作用下,载荷增大使球轴承的固有振动频率升高,载荷越大同样的载荷增幅引起的频率升幅减小,足够大的中心轴向载荷作用下载荷的变化对球轴承振动的频率特性不会产生明显的影响; 3轴向和径向联合载荷作用下,径向载荷不大时球轴承振动的固有频率基本不变,但是可能引起变刚度激励的非线性振动,出现新的频峰,过大的径向载荷将使部分钢球脱离接触,使球轴承的振动和噪声呈现不稳定状态; 4润滑对球轴承的振动和噪声特性有重要的影响,良好的润滑对振动有明显的抑制作用,润滑不充分时,振动和噪声的水平会有明显增高,一定条件下还会激发接触副中的谐振,发出啸声,造成接触表面的伤害,无润滑干接触时,短时的运转就会损伤接触副表面,使振动和噪声迅速增大,并随时可能引发严重的磨损和卡滞失效;接触副润滑良好时,油膜的"刚化效应"使球轴承振动的固有频率有所提高,润滑剂中含有弥散性污浊时,振动的幅度总体升高,但弥散性污浊不会改变球轴承振动的频率特性;浙江大学博士学位论文:球轴承振动的研究 5低速时,球轴承振动的基本特征呈现不稳定状态,随着转速的提高,球轴承振动的频率特性趋于稳定,固有频率频峰升高; 6理论分析表明,干接触时钢球和滚道表面波纹度的某些谐波分量能激励球轴承的振动,振动的幅值与谐波幅值成正比,实际球轴承中钢球的分布不可能完全均匀,波纹度的激励作用会随时发生;润滑接触的分析表明,波纹度的任意谐波分量均能激励球轴承的振动; 7球轴承的几何和结构参数分析表明,球轴承尺寸越大,径向、轴向和角振动的固有频率越低;钢球中心圆直径增大,球轴承的径向和轴向振动的固有频率基本不变,角振动的固有频率有所上升,振动的幅频特性基本不变;径向游隙加大使球轴承的径向振动固有频率降低,轴向和角振动的固有频率有所升高,径向振动幅频特性的幅值升高,而轴向和角向降低;钢球的数量增多使球轴承振动的固有频率上升,幅频特性的幅值下降,径向振动的幅值下降最为明显;外圈沟曲率半径系数增大使球轴承径向振动的固有频率升高,轴向和角振动的固有频率降低,径向幅频特性基本不变,轴向和角向幅频特性幅值升高;内圈沟曲率半径系数增大使径向、轴向和角振动固有频率均下降,振动幅频特性的幅值均有升高; 8试验对比表明,传感器采用探针式安装时,由于探针接触副接触特性的影响,钡(量得到的球轴承振动信号有失真,采用专门设计和制作的试验球轴承,以固定式安装加速度计,首次测量得到了球轴承振动的真实信号,通过对振动信号的分析,验证了球轴承振动的理论模型; 9)基于时间序列分析的AR模型适用于大样本球轴承振动信号的分析,以样本长度的均方根值作定阶上界,FPE做判阶准则,给出的AR谱光滑,频率分辨率高,是球轴承振动分析的简便而可靠的手段; 10以时频域分析的小波包变换分析球轴承异音信号能够比较好地定位和聚焦异音发生的时间,时间间隔,频率范围,同样是球轴承振动分析的可靠的手段,可用作球轴承故障诊断技术。
-
Treated with 5~80mg/L SA, destroyer of nectarine flowers were faint, electrolyte exosmosis rate and the content of MDA decreased obviously. Treatments with 5~25mg/L SA resulted the activity of SOD increased, but 45~80mg/L SA made it decreased obviously.
经5~80mg/L SA处理的桃花,雌蕊形态恶变减轻,电解质外渗率和MDA含量显著下降;5~25mg/L SA处理使SOD活性显著升高,但45~80mg/L SA处理使SOD活性显著下降;25mg/L SA处理使POD活性升高,其它处理使POD活性下降。
-
We discovered that the mechanisms of borneol opening BBB involved (1) promoting the tight junction of endothelial cells opening:(2) increasing the quantity of pinocytosis vesicle in endothelial cells and enhance the pinocytosis;(3) inhibiting the activation of P-glycoprotein (P-glycoprotein is an efflux pump of drugs) and increase the permeability of BBB;(4) reducing the expression of intercellular adhesion molecule-1 in brain microvessel endothelial cells;(5) increasing the concentration of Ca〓 in brain microvessel endothelial cells;(6) increasing the activation of eNOS in brain microvessel endothelial cells.
随后,在对冰片开放血脑屏障的机制作进一步的研究时又发现,冰片开放血脑屏障的机制包括以下几个方面:(1)冰片可使血脑屏障内皮细胞间的紧密连接开放;(2)冰片能使内皮细胞内的囊泡数量增加,吞饮功能增强;(3)冰片能抑制P-糖蛋白的活性(P-糖蛋白是一种药物外排泵),而使血脑屏障的通透性增加;(4)冰片能使脑微血管内皮细胞ICAM-1表达量减少;(5)冰片使脑微血管内皮细胞内的Ca〓浓度升高;(6)冰片可升高脑微血管内皮细胞eNOS的活性。
-
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。
-
Root-derived organic carbon is composed of three compartments: root detritus, root eaudates and root symbionts, which represents a large important and potential C sink in forest ecosystems, The known responses of root derived organic carbon and heterotrophic microbes to elevated CO2 were reviewed. Overall, increases in root biomass, productivity, and exudation indicate an augmentation of C inputs into the soil via roots, although changes in root lifespan are still unclear and may modify this flux positively or negatively, Altogether, changes in root chemistry and morphology that may augment soil C storage under elevated CO2 include decreased N concentration and wider root diameter, Alternately, a shift in rooting depth upwards in the soil profile may increase average turnover rates of root detritus. Effects of CO2 concentration on C qualities of root exudates and root symbionts are the least understood components discussed here, Changes of soil heterotropic microbial activity and community under elevated CO2 still remained large uncertainties.
林木根源有机C包括根东通过根枯落物、根系分泌物和根共生菌周转3条途径向土壤输入的有机C,它是森林生态系统中一个重要的、潜在的C汇,综述了根源有机C与其微生物对CO2浓度升高的响应,虽然对根系寿命的变化尚不清楚,但CO2浓度升高将导致根系生物量、生产量、死亡量和分泌物的增加;同时,CO2升高亦促使根共生菌生物量的增加而增加了共生菌的C归还潜力,表明CO2升高使根源有机C的输入增加了,CO2农度升高情况下,根系化学性质和形态特征的这些变化均有利于增加土壤C的吸存;而根分布深度的降低则对土壤C吸存不利;CO2浓度升高对根分泌物和根共生菌质量的影响研究则极少,CO2浓度升高下土壤微生物活性和群落组成的变化存在较大的不确定性,目前CO2浓度升高下林木根源有机C对森林长期C吸存的贡献仍很不清楚。
-
The results showed that elevated CO2 increased the R/S ratio and the dry mass of both coarse and fine roots, indicating that the seedlings under elevated CO2 allocated more biomass to their belowground part. Compared with control, elevated CO2 increased the contents of reducing sugar, sucrose, and total soluble sugar in coarse roots significantly, but had less effect on those in fine roots. Elevated CO2 increased the contents of starch and total non-structural carbohydrate both in coarse roots and in fine roots. Under elevated CO2, the carbon content in coarse and fine roots had an unsignificant increasing trend, while the nitrogen content decreased significantly, which resulted in an increase of C/N ratio.
结果表明:CO2浓度升高使红桦幼苗粗根和细根的干质量增加,同时根/冠值显著升高,表明CO2浓度升高使红桦幼苗生物量向根系的分配增加;与对照相比,粗根的还原糖、蔗糖和总可溶性糖含量显著增加,而在细根中没有显著变化;粗根、细根的淀粉和总的非结构性碳水化合物含量显著增加;CO2浓度升高下粗根和细根的碳含量有升高的趋势但未达到显著水平,同时氮含量降低,碳/氮值升高;氮的吸收量在粗根和细根中均无显著变化。
-
The results showed that elevated CO2 increased the R/S ratio and the dry mass of both coarse and fine roots, indicating that the seedlings under elevated CO2 allocated more biomass to their below- ground part. Compared with control, elevated CO2 increased the contents of reducing sugar, sucrose, and total soluble sugar in coarse roots significantly, but had less effect on those in fine roots. Elevated CO2 increased the contents of starch and total non-structural carbohydrate both in coarse roots and in fine roots. Under elevated CO2, the carbon content in coarse and fine roots had an unsignificant increasing trend, while the nitrogen content decreased signifi- cantly, which resulted in an increase of C/N ratio.
结果表明:CO2浓度升高使红桦幼苗粗根和细根的干质量增加,同时根/冠值显著升高,表明CO2浓度升高使红桦幼苗生物量向根系的分配增加;与对照相比,粗根的还原糖、蔗糖和总可溶性糖含量显著增加,而在细根中没有显著变化;粗根、细根的淀粉和总的非结构性碳水化合物含量显著增加;CO2浓度升高下粗根和细根的碳含量有升高的趋势但未达到显著水平,同时氮含量降低,碳/氮值升高;氮的吸收量在粗根和细根中均无显著变化。
-
The results showed that in the growth period of R. glutinosa, soil ferulic acid, vanillic acid, and vanillin contents had a persistent increase, while β-hydroxybenzoic acid content increased first but decreased then. The addition of ferulic acid (8 μg·ml-1), vanillic acid (08 μg·ml-1), vanillin (12 μg·ml-1), and β-hydroxybenzoic acid (30 μg·ml-1) in water culture had stronger inhibitory effects on R. glutinosa root length, root mass, fresh plant mass, and plant height. Treating with test phenolic acids except β-hydroxybenzoic acid increased leaf chlorophyll content significantly, compared with the control. After treated with test phenolic acids, plant SOD and POD activities decreased after an initial increase, and plant malondialdehyde content increased. In the treatment of ferulic acid, root SOD and POD activities were the lowest, and roots were rotted and dead.
结果表明:阿魏酸、香草酸和香草醛含量在地黄生长期表现为持续增加,而对羟基苯甲酸含量先升高后降低;外加阿魏酸(8 μg·ml-1)、香草酸(0.8 μg·ml-1)、香草醛(1.2 μg·ml-1)和对羟基苯甲酸(3.0 μg·ml-1)对水培地黄根长、根质量、全株鲜质量和株高有较强的抑制作用;酚酸处理使地黄叶片叶绿素含量降低,除对羟基苯甲酸外差异性极显著;经过酚酸处理的地黄幼苗SOD和POD活性为先升高后下降,丙二醛含量升高,其中阿魏酸的处理使根中酶活性降至最低,根部腐烂死亡。
-
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。
- 更多网络解释与使升高相关的网络解释 [注:此内容来源于网络,仅供参考]
-
ascensive ive:的 上升的,使上升的
ascension ion名词后缀 上升,升高 | ascensive ive ...的 上升的,使上升的 | ascent ascend转成的名称 上升,升高登高
-
cerebral edema:脑水肿
脑水肿(cerebral edema)是指脑组织内液体异常聚积,从而使颅内压升高而引起的一系列临床症状的综合征. 脑水肿(cerebral edema)是指脑组织内液体异常聚积,从而使颅内压升高而引起的一系列临床症状的综合征.
-
pericardial effusion:心包积液
1.心包积液 心包积液(pericardial effusion)的液体可为浆液性、浆液血性、血性、化脓性及乳糜性等. 心包积液时,心包腔内压力升高,当达到一定程度时,便可压迫心脏,使心房和腔静脉压力升高,以至静脉回流受阻,同时,心室舒张及血液充盈亦受阻,
-
elevated platform:高台,升运平台
elevate;举起,使升高 | elevated platform;高台,升运平台 | elevated portion;高架部分
-
escalate i:逐步升高, 逐步增强 t. 使逐步上升
543. erythrocyte n. [医]红血球 | 544. escalate i. 逐步升高, 逐步增强 t. 使逐步上升 | 545. esophagus n. 食道
-
excruciate:施刑,使苦恼
exalt 使升高,增高 | excruciate 施刑,使苦惱 | exo- 外、外部
-
expurgate:使清洁
ex- 表示"使"、"做",或作加強意義 | expurgate 使清潔 | exalt 使升高,增高
-
facilitate 1:使便利 2.促进,助长
2.propel vt.1.推进,推动 2.激励,驱使(99-12) | 3.facilitate 1.使便利 2.促进,助长(01-6) | 4.ascend 上升,升高,攀登(02-6)
-
hyperthermia:过热
80.过热(hyperthermia)是由于体温调节功能失调、散热障碍或产热器官功能异常,使体温调控不能与调定点相适应,体温被动性升高,体温升高的程度可超过调定点水平,但此时调定点并未移动,这类体温升高称为过热.
-
send one's love:替某人问好
93. raise vt.使升高,饲养,筹集 | ★send one's love 替某人问好 | send sth to sb (send sb sth )把某物送给某人