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最高温度

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The ecological mechanism of fertility transition for a thermo-sensitive genic male sterile line,Qiong-68 ms,was evaluated by means of sowing by stages,investigating leafage and detecting the fertility of pollen.

采用分期播种、叶龄调查以及花粉镜检等方法,对玉米温敏核雄性不育系琼68 ms 育性转换的生态机制进行了研究,发现琼68 ms的育性变化主要受温度影响,日最高温度是其育性转换的主要因素,表现为高温不育,低温可育,育性转换的温度范围为30~33℃,雄穗发育的小穗分化期是对温度敏感的关键时期。

It is shown that maximum temperature value of the field's will rise while the Mach number increases. After the Mach number exceeds one, a clear bowshock is obtained in the simulation result, and the Mach angle decreases along with the Mach number. Those are consistent with theoretical results. While the Mach number is 3.5, even the radome inside is adiabatic, the maximum temperature is below 1000K. So the CVD diamond thick film radome can meet practical requirement of flight at 3.5 Mach number.

研究发现,随着马赫数的增加,温度场中最大温度值也随之增大;在马赫数大于1时,会产生明显的弓形激波,且激波的锥角随马赫数增加而减小,这与理论结果相一致;当马赫数为3.5时,即使在头罩内壁绝热条件下,温度场中最高温度值也在1000K以下,表明CVD金刚石厚膜可以满足Ma=3.5的实际飞行要求。

RR pointed out that at the top range it would are quire large amount of ventilation to keep the building.

罗罗指出在,在最高温度限值时,将需要大量通风,以保持主厂房温度比周围温度仅高出12℃。

According to the regulation of period time of average statistical climate by the World Meteorological Organization, and taking into account of our country's climate characteristics, statistically analyzes the basic weather data for 18 cities in China from 1970 to 2000. Weather data include maximum temperature and correspono, minimum relative humidity , minimum temperature and corresponding maximum relative humidity. This would be a preliminary database for responsive climate building design.

依据世界气象组织关于气象参数统计时段的规定,考虑到我国不同城市区域气候的特点,在建立室外气象参数分析模型的基础上,本文首次统计分析了我国18个城市最近30年(1970-2000)的主要气象参数,包括月平均温度、月最高温度、最低温度、以及对应的最小相对湿度和最大相对湿度,为建筑气候设计奠定了数据基础。

Secondly, ANSYS is used to compute the thermal filed of air-core reactor. A coupled magnetic-circuit-thermal finite element model is proposed for thermal analysis. Finally, the distribution of the thermal field and the maximal temperature are given.

对干式空心电抗器的温度场进行了有限元分析,建立磁场-电路-温度场的耦合计算模型,得到空心电抗器的稳态温度场分布以及最高温度值。

Using this method, the thermal analysis of air-core reactor is performed without specifying the convection coefficients at its development stage. Therefore, the experimental cost of air-core reactor is decreased and the design period is shortened.

建立了空心电抗器磁场、电路、流场和温度场耦合计算的有限元模型,将磁场-电路计算得到的焦耳热作为流场和温度场计算中的热源,从而求出了空心电抗器的稳态和暂态温度场分布及最高温度值。

Multivariate logistic regression analysis was used to correlate the tumor response to Tmax,Tmin, Tav, T90, T50, T10,%T, and the cumulative minutes when the temperature reached 42.5℃ in the tumor center (Cum min Tcenter>42.5℃).

最终进行肿瘤反应与肿瘤内最高温度,最低温度,平均温度, T90, T50,T10,%T以及肿瘤中央区测温点温度大于42℃, 42.5℃的持续时间(Cum min Tcenter>42℃, 42.5℃等热参数的多元回归分析。

The result showed that Wote and PAM increased the average temperature of the earth's surface, temperatures of 10cm soil, 20cm soil and the lowest temperature of the earth's surface, but reduced the highest temperature of the earth's surface in reviving phase. Soil moisture was increased by using Wote and PAM, and the soil moisture of 0-30cm soil in florescence and fruiting phase was also increased.

结果表明,施用沃特和FAM降低了西瓜缓苗期的地表最高温度,提高了地表的平均温度、最低温度及10cm土层和20cm土层的土壤温度,增加了土壤的含水量,特别是开花坐瓜期0~30cm土层的土壤含水量。

By means of equalizing the histogram, the contrast of original thermal image is enhanced; then image region of the disc surface of insulator is intercepted manually; through the envelope of the smoothened histogram of thermal image the segmentation threshold is extracted and the morphological filtering is applied to the threshold- segmented binarized image to obtain insulator disc surface image and background image, and then 10 infrared image features of insulator disc surface image and background image, such as the highest temperature, the lowest temperature, mean temperature, variance of temperature distribution of both kinds of images, as well as maximum temperature rise and mean temperature rise of insulator disc surface relative to background, are extracted; finally, the good and bad features are discriminated by single factor variance analysis, thus the feature selection is implemented.

利用直方图均衡化增强原始热像图对比度,人工截取绝缘子盘面图像区域;通过平滑后的图像直方图包络线提取分割阈值,对阈值分割后的二值图像进行形态学滤波,得到绝缘子盘面图像和背景图像,提取2者的最高温度、最低温度、平均温度、温度分布方差以及盘面相对于背景的最大温升和平均温升共10个红外热像特征;应用单因素方差分析甄别特征优劣,实现特征选择。

At the same time, the calculation results show that a layer of underground garage, when only a car was ignited, when the non-extraction system, and sprinkler systems do not work, the source region of the fire smoke layer the maximum temperature of 280 degrees, in other regions the maximum temperature of smoke layer 142 degrees.

同时,计算结果表明,一层地下车库,当时只有一辆汽车被点燃,当非提取系统,自动喷水灭火系统不能正常工作,源区的火灾烟气层的最高温度280度,在其他地区的最高温度为142度的烟雾层。

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