查询词典 absorption coefficient

Pyrology; Energy transportation; Absorption refrigeration; Absorption heat pump; Waste heat utilization

热工学；能量输送；吸收式制冷；吸收式热泵；余热利用

Based on time-course observations on the nitrogen accumulation, assignment, absorption and remobilization under various nitrogen rate regimes with different cultivars, a dynamic model was developed to simulate the nitrogen accumulation and assignment before anthesis and the nitrogen absorption and remobilization model after anthesis in barley.

通过定量分析不同品种和氮肥处理大麦氮素吸收、积累、分配和转移的变化过程，建立了大麦花前氮素积累及分配和花后氮素吸收转移动态模型。

Furthermore,the nonlinear absorption in Z-scan result is saturable absorption,which mainly caused by polarities of solvents.

此外，Z-scan结果中的非线性吸收为饱和吸收。

Furthermore, the nonlinear absorption in Z-scan result is saturable absorption, which mainly caused by polarities of solvents.

至于光限幅效应，主要受热效应影响，但亦可由吸收谱预测出在某波长处的动态范围。

In this paper the content of fourteen microelements in astragulus root of northeast China was determined by flame atomic absorption and graphite oven absorption spectrophotometry, compared with four pretreatment slaking methods and gained good determination methods for some elements.

本文以火焰原子吸收法和石墨炉原子吸收法测定了东北黄芪中 14种微量元素的含量，并对 4种预处理消化方法进行了比较，选择出对某种元素较好的测定方法。

The two-photon absorption cross-sections of these styryl derivatives were determined by Z-scan technique, and the benzothiazolium derivatives exhibited the largest TPA cross-sections (10〓s·cm〓/photon) and the best power limiting ability at high operable incident intensity. The results show that the benzothiazolium derivatives are promising organic compounds as two-photon absorption optical limiting materials. 2. Several organic dyes active to 800nm femtosecond laser with D-π-A structure were designed and synthesized.

研究了它们的上转换荧光、上转换激射和光限幅行为，通过改变染料分子共轭体系的大小，首次实现了在576nm-635nm范围内的双光子上转换激光波长的调节，其中噻唑啉碘盐类二苯乙烯化合物的双光子上转换激射峰（576nm）是迄今在1064nm皮秒激光作用下能够得到的最短波长的激光；阴离子显著改变上转换激射效率，但对上转换荧光峰和激射峰的位置影响很小；增加溶液的浓度，上转换荧光光谱和激射光谱红移，并在一定的浓度范围内，能够有效的提高上转换激射效率；利用Z-扫描技术测定了染料分子的双光子吸收截面，发现苯并噻唑类染料分子的双光子吸收截面高达10〓s·cm〓／photon，而且在较大的入射光强范围内，这类染料分子具有较大的光限幅能力，是一类作为双光子吸收光限幅材料很有潜力的染料分子。

A three-level energy model is forwarded on the nonlinear absorption properties o f a two-photon absorption dye trans-4-[4′-(N- hydroxyethyl- N-eth ylamino)styryl]-N-methylpyridinium p-toluene sulfonate.

提出了有机染料反式 4 [4′(N 羟乙基 N 乙基胺基)苯乙烯基 ] N 甲基吡啶对甲苯磺酸盐非线性吸收的三态模型。

The moisture absorption change abided by the Fick rule and dimensional change of the two kind of bamboo flooring were very similar. The results showed that the equal moisture content and moisture absorption speed of the sympodial flooring were higher than of moso bamboo flooring in summer extreme conditions. However, less differences were found in winter conditions.

结果表明：夏季高温湿热环境对竹地板吸湿及尺寸稳定性影响较明显，丛生竹地板和毛竹地板的吸湿性能变化规律基本符合菲克定律，且两者变化规律相似；但冬季湿热环境对竹地板影响较小。

The charge transfer rate and the total absorption of simulated solar light were remarkably increased because of the presence of MWCNT thin film, which has a superior electron-conducting property, an absorption property and a tanglesome network, providing an ideal matrix for uniform distribution of TiO2 nanoparticles.

MWCNT薄膜具有良好的电子导电性、吸光性和镂空的网状结构等性质，形成了一个理想的基板负载TiO2纳米颗粒，而且显著提高了纳米复合薄膜电极光生载流子的分离效率和模拟太阳光的利用效率。

These decreases in absorption were not a nonspecific global event,because there was no postprandial effect on absorption of oleic acid or taur- ocholate at any time point.

这些吸收的下降并是一个特殊的全球化事件，因为在餐后任何时间都不会影响对油酸或者牛黄胆酸的吸收。

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。