查询词典 transmission bands

In overlay cognitive radio, secondary users harness unused spectrum bands for their transmission; in underlay cognitive radio, an ultra-wideband transmission with very low power spectrum density is employed by the secondary user to minimize harmful interference to the primary users.

认知无线电和动态频谱接入网络因此应运而生，成为近期无线通信和网络研究的热点。通常的认知无线电技术主要采用两种频谱接入方式：Overlay和Underlay。

The method of high-resolution Fourier-transform spectroscopy study on the Absorption line intensities is discussed. With a series of measurement and fitting the line profiles, altogether 1 760 Absorption lines of phosphine were obtained, corresponding to five bands in the 1 950-2 480 cm~(-1)region and four bands i...

文章探讨了高分辨傅里叶变换光谱方法研究气体样品吸收线型的基本原理，并通过实验测量以及程序拟合谱线线型，得到了磷烷分子在1950~2480cm-1波段的5个吸收带以及3280~3580cm-1波段的4个吸收带中的1760条谱线线强度，经分析其结果误差在±6%左右。

When C.farreri×P.yessoensiswere tested by using6pairs of microsatellite primers which could be applied to boththe two kinds of scallops,the specific bands could be amplified fromeachone of the 6 pairs,among which,the specific bands fromboth agnate and maternal colony could be distinguished obviouslyinthe amplified products of P13F449 and KMY134,and accordinglythe hybrid identity of hybrid generations could be affirmed.

将这6对具有属间通用性的微卫星引物对栉孔扇贝×虾夷扇贝进行PCR扩增，均能扩增出特异性条带，其中引物P13F449和KMY134的扩增产物中可以明显地分辨出来自父母本群体的特有条带，从而确定了杂交子代的杂种身份。

While the adsorptions of 1-propanol and 1-Br-propane at 100℃ give rise to 1-propoxy species, which mainly converted to propanal at higher temperature. IR spectrum arising from the interaction of propene with the catalyst at 100 ℃ shows the IR bands of allyl alcoholate and isopropoxy species. As the temperature was increased to 150℃, the bands ascribable to the adsorbed acetone and acrolein were observed. Based on these results, it is suggested that isopropoxy species is one of the intermediates for SOP to acrolein over MoPO/SiO〓 catalyst.

2原位IR光谱实验结果表明：200℃时丙烷/O〓混合气在催化剂表面吸附后的IR谱与同温度下异丙醇吸附的IR谱相似，均检测到吸附态丙酮物种和丙烯醛物种的IR谱峰；溴代异丙烷和异丙醇在催化剂表面吸附后均转化为异丙氧基，异丙氧基主要转化为丙烯和丙酮，丙烯进一步转化为丙烯醛；溴代正丙烷和正丙醇在催化剂表面吸附后均转化为正丙氧基，正丙氧基主要转化为丙醛；丙烯在催化剂表面吸附后转化为σ-氧烯丙基和异丙氧基，升温后σ-氧烯丙基转化为丙烯醛而异丙氧基转化为丙酮。

While the adsorptions of l-propanol and 1-Br-propane at 100 癈 give rise to 1-propoxy species, which mainly converted to propanal at higher temperature. IR spectrum arising from the interaction of propene with the catalyst at 100 癈 shows the IR bands of allyl alcoholate and isopropoxy species. As the temperature was increased to 150 癈, the bands ascribable to the adsorbed acetone and acrolein were observed. Based on these results, it is suggested that isopropoxy species is one of the intermediates for SOP to acrolein over MoPO/SiO2 catalyst.

原位IR光谱实验结果表明：200℃时丙烷／O_2混合气在催化剂表面吸附后的IR谱与同温度下异丙醇吸附的IR谱相似，均检测到吸附态丙酮物种和丙烯醛物种的IR谱峰；溴代异丙烷和异丙醇在催化剂表面吸附后均转化为异丙氧基，异丙氧基主要转化为丙烯和丙酮，丙烯进一步转化为丙烯醛；溴代正丙烷和正丙醇在催化剂表面吸附后均转化为正丙氧基，正丙氧基主要转化为丙醛；丙烯在催化剂表面吸附后转化为σ-氧烯丙基和异丙氧基，升温后σ-氧烯丙基转化为丙烯醛而异丙氧基转化为丙酮。

By Giemsa--C technique, the chromosomes of Aegilops tauschii (85A-34) and Hordeum vulgare (H2) and Ae.tauschii- H.vulgare amphidiploid were all produced clear bands, the terminal band, centromeric band, secondary constrition band and rich intercalary bands were displayed distinctly, thus the corresponding Giemsa-C banding patterns were confirmed.

利用Giemsa--C带显带技术，节节麦、大麦、节节麦-大麦双二倍体都显示出了清晰的带纹，都具有端带、着丝点带、随体带和丰富的中间带，相应的确定了它们的Giemsa--C带核型。

Fast Fourier transformation and autoregressive model estimation, are the most common methods used in the frequency domain analysis. The fluctuation in the highfrequency bands are mediated by parasympathetic control, whereas the fluctuation in the low frequency bands are mediated by both sympathetic and parasympathetic nervous systems. The origin of the fluctuation in the very low and ultra low frequency ranges are less obvious.

频域分析法一般是利用快速傅位叶转换或自动回规模型估计法，高频处的变异是由副交感神经系统调控，低频处的变异则是由副交感神经系统共同调控，至於极低频处与超低频处的变异，其原因尚待厘清。

On FFA, there are 10 to 15 hypofluorescenct bands radiating from the optic disk which were similar to the large retinal vessels in shape and number. On ICGA the choroidal folds showed obvious hyperfluorescence at the late stage. On OCT the reflective bands of Bruch membrane and retinal pigment epithelium showed the wavy folds.

FFA检查显示，视盘周围呈现10～15条呈放射状行走的弱荧光带，形态及走行状似视网膜大血管；ICGA检查显示，后期脉络膜皱褶的槽底呈强荧光条；OCT检查显示，Bruch膜和视网膜色素上皮反光带呈波浪状皱褶。

Meiotic pachytene bivalents were obtained from porcine testes using prolonged hypotonic treatment combined with high chloroform Carnory's fixative solution. Mitotic metaphase chromosomes were prepared from blood cell culture. Comparative studies on division index and length of pachytene bivalents and mitosis metaphase chromosomes showed that those of the former are 5 times higher and 3.42(1.87～5.98) times longer than the latter, respectively. Chromomere maps of bivalents are more abundant than mitotic metaphase G-bands, while they are correspondent with mitotic early-metaphase G-bands. The result was found by using the chromosome 12 as a sample.

以性成熟公猪睾丸和外周血为材料，采用长低渗、高氯仿卡诺固定液固定和外周血细胞培养制备减数分裂粗线期二价体和有丝分裂中期染色体，通过对二价体和有丝分裂中期染色体分裂指数和长度的比较研究，发现二价体的分裂指数和长度分别是有丝分裂中期染色体的5倍和3.42倍(1.87～5.98)；同时以12号染色体为例，比较了二价体上的染色粒结构带与有丝分裂中期染色体G-带，表明染色粒结构带比中期染色体G-带带纹丰富，而与早中期G-带带纹吻合。

It was showed that wheat gliadins were codominant and the female parent prevailed in F1; there were 9 bands segarated as a pair of gene, for example, Gli-23.2, 34.8, 40.2, 46.2, 71.5, 73.8, 13.9, 26.0, 50.0 and there were 9 bands separated as two pairs of genes in F2, in addition, Gli-17. 8 did not follow with any one of them.

结果表明，醇溶蛋白在F1代表现出共显性和倾母性遗传特点；F2代蛋白谱带发生分离，具体表现为：Gli-13.9、23.2、26.0、34.8、40.2、46.2、50.0、71.5、73.8等9个组分的分离符合一对基因的分离规律，而Gli-12.7、15.7、16.5、19.1、26.9、30.5、30.8、32.2、76.8等9个组分的分离符合两对基因的分离规律；Gli-17.8既不符合一对基因的分离规律，又不符合两对基因的分离规律。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。