波段

Study this modeled database, find some features and then L band multiangular semiempirical model is founded using regression method.

通过AIEM模拟的数据库，利用回归关系建立了一个精度相对较高的L波段多角度半经验模型。

Especially, with the improvement on microelectronic integrating technique and the development of hegh-speed electronic devices in the recent decade, the rise time and width of working pulses have been reduced to the ps range in high-speed digital circuits. In such fast pulses there are microwave and even milliwave components, so analysis of the time-domain response of multiconductor tuansmission lines used as interconnects in high-speed integrated circuits must be performed to ensure the normal working state, Much research work has been done and many analysis methods have been developed.

近十年来随着微电子集成工艺技术的提高和高速电子器件的发展，高速数字电路的工作速度提高迅速，脉冲信号的上升时间和宽度已缩短至ps量级，对应的频谱已进入微波甚至毫米波波段，这种情形下对信号连接线的时域响应加以分析就成为保证高速电路正常工作的必要环节。

It can be in the form of spurious signals If the amplitude of these spurious signals is outside agency-reference-recommendation value, they could cause undue disturbances to other users by entering the receiver systems of other RF bands The generation of spurious signals from a transmitter could be the result of imposed varying antenna loads, noisy voltage-supply lines to the stages of the transmitter, or noncontinuous battery-voltage supply to RF energy from the host.

传输器的不稳定是指传输器产生的伪真信号，这种不稳定性的伪真信号的形成出现，如果它们的振幅超过代理服务器允许值就会进入其它波段的接收系统，干扰使用者，强制性的天线改装，伴有嗓音的电压，断续的供电都会产生为伪真信号，有些电池装配线可接收并解调这种能量，并生成嗓音，然后由经供电线路进入主传输器。

Photodissociation spectroscopy of the complexes Mg~+-NCSCH_3 Mg~+-S_2(CH_3_2 in the spectral region of 230-440nm was oberserved. As to Mg~+-NCSCH_3 of photo-induced reaction, there were three channels. And there are the products Mg~+ from nonreaction quenching and reactive products Mg~+NC, Mg~+NCS in the reaction throughout the whole wavelength range.

观察了复合物Mg~+-NCSCH_3Mg~+-S_2(CH_3_2在230～440nm范围的光解离光谱，在此波段内的复合物光诱导产物的质谱显示，对Mg~+-NCSCH_3：光诱导反应有三个通道，存在着非反应猝灭产物Mg~+和反应产物Mg~+NC、Mg~+NCS。

In order to further study the blue and green visible band up-conversion emission mechanism of rare earth-doped material, the different host glass of oxyfluoride crystallite glasses were prepared by conventional melting method.

中文摘要：为了进一步探讨稀土掺杂材料在蓝绿波段的上转换发光机制，本文采用传统的熔融技术制备了不同基质材料的氟氧化物上转换微晶玻璃。

The oscillator strength and integrated emission section value of 〓H〓→〓I〓(521 nm) for Er〓 ions in visible wavelength is large, it means that Er〓 doped oxyfluoride glass-ceramics may be lase in short wavelength.

Er〓离子可见光波段的几个通道如〓H〓→〓I〓（521nm）有大的振子强度，积分发射截面和较高的荧光分支比，有可能实现短波长的激光输出。

In this paper, transparent Er(superscript 2+) ions doped oxyfluoride glass-ceramics was prepared by high temperature melting and thermal treatment technology. The changes of micro-crystals structure, UV-VIS absorption spectra and NIR emitting spectra occurred with the variety of Er(superscript 3+) concentrations were studied.

采用高温熔融及热处理工艺，制备了透明度良好的Er(上标 3+)离子掺杂的氟氧化物玻璃陶瓷，并研究了不同Er(上标 3+)离子掺杂浓度下，玻璃陶瓷微晶结构、紫外－可见波段吸收光谱、近红外发射光谱的变化。

The presented oxyhalide tellurite glass is a kind of optical material with high infrared transmission. It exhibits a high transmittance (≥80%) in the mid-infrared regions and possesses an infrared cut-off edge up to 6.5μm.

这种新型的氧卤碲酸盐玻璃在中红外区域有较高的透过(≥80%)，中红外波段透过截止波长达6.5μm，是一种红外透过性能优良的光学玻璃材料。

Therefore,the band ratio of ASTER band 4 and band 6 can effectively distinguish blueschist/greenschist and psammitic/pelitic schist.

应用ASTER band4/band6波段比值可以有效的区分开砂质/泥质片岩与蓝片岩/绿片岩。

This and previous studies have shown that pheophytin absorption peaks appears at 412 nm in the violet region of spectrum, and 670 nm in the red.

由实测数据及相关文献推断出脱镁叶绿素蓝光和红光吸收峰分别位于412和670nm波段，并采用多元线性回归对脱镁叶绿素和叶绿素a的比吸收系数进行研究。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐