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上升曲线

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It was revealed that the average infrared radiation temperature of damp rock increases with loading and keeps its change in step with the stress, and that the fluctuation of AIRI is much less, The AIRT increment of damp rock is higher than that of dry rock under unit load before destabilization and the fact shows that water will intensify the infrared radiation from loaded rock, but no obvious change was found on thermal image during the instantaneous fracture of damp rock.

结果表明:潮湿岩石加载过程中平均红外辐射温度随载荷增加呈上升趋势AIRT与应力的变化步调一致,曲线波动较小;岩石失稳前单位载荷下潮湿岩石的升温幅度高于干燥岩石,水对岩石受力时的红外辐射具有明显推动作用,但破坏瞬间热像特征变化不很明显。

Content of chlorophyll of lamina of each test group and fast light answer the trend that the curve all presents to rise to drop again first, grow with bulrush of development seasonal metabolic rule photograph is consistent.

各试验组叶片叶绿素含量和快速光响应曲线均呈现先上升再下降的趋向,和芦苇生长发育的季节性变化规律相一致。

In this work the influence of surfactants CTAB and SDBS on the surface properties and imbibition for oil wet limestone is investigated at 62℃ by the ways of capillary rise, imbibition, and relative permeabilities curves.

本工作采用毛管上升、渗吸及相对渗透率曲线方法,在62℃下研究了CTAB和SDBS溶液对油湿灰岩表面性质及渗吸行为的影响。

Extrude that closed curve by 0.6cm up.

挤出的关闭0.6厘米曲线上升。

The friction performances of carbon face were investigated with an inertia friction tester. The torque curve of carbon face was ideal, the coefficient of static friction was lower than that of dynamic in 0.28 MPa, the friction coefficient of static and dynamic decreased with the braking pressure increasing. To the fiber face, the coefficient of dynamic friction of carbon face was more stable in cycle braking process, the wear rate was lower, and it was efficient to protect the couple plate not to be worn.

结果表明:碳质层的摩擦力矩在制动初期上升较快,中间过渡区平稳,尾部翘起较小;在制动压力小于0.28 MPa时静摩擦系数小于动摩擦系数,且动、静摩擦系数均随制动压力增加而减小;相对纤维层而言,采用碳质层摩擦时摩擦力矩曲线形态更好,连续制动时摩擦系数波动较小,磨损率低且能够有效保护偶件,是1种静/动摩擦系数比较低且适用于高载荷工况条件下使用的摩擦材料。

The friction performances of carbon face were investigated with an inertia friction tester.The torque curve of carbon face was ideal,the coefficient of static friction was lower than that of dynamic in 0.28 MPa,the friction coefficient of static and dynamic decreased with the braking pressure increasing.To the fiber face,the coefficient of dynamic fric...

结果表明:碳质层的摩擦力矩在制动初期上升较快,中间过渡区平稳,尾部翘起较小;在制动压力小于0.28 MPa时静摩擦系数小于动摩擦系数,且动、静摩擦系数均随制动压力增加而减小;相对纤维层而言,采用碳质层摩擦时摩擦力矩曲线形态更好,连续制动时摩擦系数波动较小,磨损率低且能够有效保护偶件,是1种静/动摩擦系数比较低且适用于高载荷工况条件下使用的摩擦材料。

The comparative research results showed that:(1)Thediurnal variation of the net photosynthetic rates in the aquatic leaves was a "double-peak", with an various "midday-decline", the time of the peak value appeared at about 10:00 A.M. and 13:00 P.M., while that in the xeric leaves was showed with invarious peak value and "midday-decline"; The diurnalvariation of transpiration ratesof both aquatic and xeric leaves appeared as a single-peak, the appearance time of peak value of the latter was earlier than the former and gradually decreased in the afternoon; The stomatal conductances appearance time of both of them were close to that of photosynthesisrate ,reached to the maximum in the morning and then gradually decreased: Diurnal variation of intercellular CO2 concentrationshows that: both aquatic and xeric leaves increased at first, and then exhibit a tendency of ascending within narrow range.(2) The net photosynthetic rates, photosyntheticallyactive radiation, stomatal conductances and transpiration ratesof both two kinds of leaves showed positive correlation, The correlation degree among them was prominent, there was significant negative correlation between The net photosynthetic rates and intercellular CO2 concentration.

研究结果表明:(1)水生叶片净光合速率的日变化曲线呈双峰型,出现明显的&午休&现象,峰值出现在10:00左右和13:00左右,但旱生叶片表现出的峰型和&午休&现象不明显;两种叶片的蒸腾速率日变化曲线表现为明显的单峰型,旱生叶峰值出现时间早于水生叶,中午过后逐渐下降;两种叶片气孔导度峰值出现时间和光合速率相近,均表现为上午升高至最高,随后逐渐下降的趋势;两种叶片胞间二氧化碳浓度日变化表现为:整体上先下降,然后有一上升趋势:(2)两种叶片的光合速率与光合有效辐射、气孔导度、蒸腾速率呈正相关,全部达到显著水平;光合速率与胞间CO2浓度显著负相关。

First super-low specific-speed centrifugal pump has a long and narrow flow passage for its high head and low capacity, and the power absorbed by disc friction is too high, so the efficiency is very low; Secondly the diffusion of flow passage is so high, that the reserved flow often emerges at the inlet and outlet of impeller. Therefore the H ~ Q characteristic curve is often hump-shaped, and at the low-capacity operating condition the instability often occurs; Thirdly the centrifugal pump at high-capacity operating condition is easy to overload because the N ~ Q curve appears a rising trend.

首先由于它的扬程较高、流量较小,所以它的流道狭长,圆盘摩擦损失较大,效率相对较低;其次由于它的流道扩散较严重,易在叶片进口产生回流和在出口产生脱流,扬程流量特性曲线易出现驼峰,在小流量工况下易产生不稳定现象;第三,由于其功率流量曲线呈现上升趋势,在大流量区运行时电机易过载。

Fo, Fm, Fv/ Fm, Yield, qP, qN and the apparent photosynthetic electron transport rateall exsited obvious diurnal variation ,the declines in Fm, Fv/ Fm, Yield and qP were observed at midday strong sunlighton the other hand , qN amounted to maximum value at midday. Fo decreased and some varieties went up again in the evening, but the value of evening was lower than morning. ETR varied as a two-peaked curve.

其中Fv/Fm、Fm、Yield、qP均呈先下降后上升的趋势,在中午强光下降低到一天中的最低值;qN则呈先上升后下降的趋势,在中午时分达到一天中的峰值;Fo一天中呈下降趋势,部分品种傍晚稍有回升,但仍比早晨低;ETR日变化呈双峰曲线。

The coordinate center of satellite altimetry data was the center of Earth so that the difference between value speed of satellite and the value speed of tide gauge station as correlative with the ground fall at tide gauge.

研究结果表明根据T/P海面高度数据提取的月均海面变化曲线与同海区验潮站测得的同期海面变化过程具有相当好的一致性和同步性,但是根据潮位序列得出的9年平均海面上升速率值均大于根据卫星资料得出的上升速率值。

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