辐射

In this thesis, we has made research in ScanSAR mechanism and imaging theory, which is the base of studies on imaging radiometric precision and accuracy, including causation and correcting technology of ScanSAR azimuth scalloping distortion.

本文对星载ScanSAR的工作机制和成像原理进行了研究，对ScanSAR成像处理器辐射精度的影响因素进行了理论分析，并研究了影响ScanSAR 方位向成像精度的扇贝效应的成因、对成像辐射精度的影响及其校正技术。

These results show that scattering radiation and uniformity of radiation field accord...

这些结果表明散射辐射、辐射场的均匀性均符合ISO 40 3 7的要求

In the study of infrared radiation character, different species of tourmaline and Draviteoccurring in pegmatites from Hebei that are different in granularity and heattreatmenttemperature are chose for infrared radiation ratio testing. The result shows:The infraredradiation ratio of tourmaline powder is above 0.80 when the surrounding temperature is 20℃and the testing temperature is below 100℃;Schorl has a close infrared radiation ratio to Dravite,which is higher than Elbaite;No matter to Dravite or Schorl, as the content of ferric oxideincreases, the infrared radiation ratio decreases;tourmaline's size is smaller, its infraredradiation ratio is higher;after tourmaline is heat-treated under 800℃, its infrared radiation ratiodeclines;Dravite heat-treated at 800℃ has the highest infrared radiation ratio, 0.90;andDravite's structure suffers from destruction above 900℃ heattreatment, so its infrared radiationratio goes down.

在红外辐射特性的研究中，本文选择了不同种属电气石、不同粒度和不同热处理温度河北伟晶岩镁电气石进行红外发射率的测试，结果表明：在环境温度为20℃、测试温度为100℃下，电气石粉体红外发射率均在0.80以上；铁、镁电气石红外发射率相近，且大于锂电气石；不论在铁电气石还是在镁电气石中，随氧化铁质量分数的增加，红外辐射率下降；电气石粒径越小，红外发射率越高；电气石在低于800℃以下温度的热处理后，红外发射率下降，800℃热处理电气石红外发射率最高，为0.90，900℃以上电气石结构遭到破坏，红外发射率降低。

The degradation kinetics, effect of irradiation on the degree of deacetylation of chitosan and the main chain scission mechanism have been studied.

用 γ射线照射壳聚糖使之发生辐射降解，研究了降解反应的动力学、辐射对壳聚糖脱乙酰化度的影响以及大分子链的断链机理。

Polymer modification as cross-link, chain scission, and graft-polymerization by radiation is initiated by the quantum energy transferred from radiation to polymers.

聚合物的辐射交联、降解和接枝改性都是由辐射向聚合物的能量转移引发的。

If not used to drink green tea, chrysanthemum tea can also play computer radiation resistance and regulation of the function of the body, Spirulina, sea buckthorn oil also has anti-radiation effect

如果不习惯喝绿茶，菊花茶同样也能起着抵抗电脑辐射和调节身体功能的作用，螺旋藻、沙棘油也具有抗辐射的作用

The governing equation is the mild-slope equation. Finite element method has advantage to treat complicated boundary. The second order radiation boundary condition is expanded to improve the wave model for large incident wave angles. The validity of the second order radiation condition is examined through varying arbitrary wave incident angles.

模式将以包含波浪绕射及反射之缓坡方程式建立数值模式，利用有限元素法易於处理不规则边界的优点，引用二阶近似辐射边界条件，扩展波场模式处理大角度波浪入射的能力，探讨在未碎波的情形下，二阶辐射边界条件对於任意角度波浪入射之适用情形。

The calculation has the specific feature that both radiation emission and self-absorption are taken into account.

其特点是不仅考虑了热辐射的发射问题，同时考虑了等离子体内热辐射的自吸收问题。

The result shows that there is a good single-valued relationship between the ratio and the temperature of an emission body under some given conditions,and the impact of radiant emittance on the measurement of temperature was reduced to some extent.

结果表明，适当选取四个测量点的波长、四波长之差值及测量点波长带宽，该比率与被测辐射体温度之间有良好的单值关系，并可一定程度上消除物体单色辐射率对测温的影响。

With the foundation of this new database, the total solar radiation amount of one day, one month and one year were calculated respectively of 24 solar terms in 1977, the representative year.

分别计算了典型年(1977年)24节气的太阳辐射日、月以及年总量，在此基础上分析了小坝乡太阳直接辐射的时空分布规律。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。