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This study demonstrates optically and spatially band-tunable color cone lasers based on DDCLC cells with a photoisomerizable chiral dopant. The band-tunability is attributable to the recovery of the helix of the CLC resulted from the trans-cis isomerization induced decrease of the helical twisting power of the chiral dopant.The more the chiral cis-isomers are produced, the larger the tuned lasing band is.

本文主要藉由在胆固醇液晶射中加入可光致同素构化亲手性材，使胆固醇液晶所输出的彩色锥角射波段可光调控及空间调控，其射输出波段可调控的机制是由於当同素构化反应产生后，光致同素构化亲手性材的HTP值低并造成胆固醇液晶距改变，藉此间接调控输出的射波长，同素构化的程愈高，胆固醇液晶所输出的彩色锥角射波段可调控范围也愈大。

Our product series include gravity fabric band filter,magnetic separator,magnetic separator with disc,gravity drum filter,magnetic conveyor,hinged belt conveyor,dredge conveyor,hydrocyclonge separator,pneumatic vacuum filter,hydraulic vacuum filter,precoat filter,vertical plate stack filter ,magnetic stick separator,rotary drum filter with permanent band,screw conveyor,disco oil separator,band oil separator,and centrifuges filter.

公司产品主要有：重力式纸带过滤机、圆柱面磁性分离器、梳齿磁性分离器、鼓形纸带过滤机、磁性排屑器、链板排屑器、刮板排屑器、旋流器、空气真空纸带过滤机、液体真空纸带过滤机、预涂助滤过滤机、板式精密纸带过滤机、磁棒分离器、反洗滤网筒式过滤机、螺旋排屑器、盘式油水分离器、离心过滤机。

The main products are: velvet with double-sided, single-sided velvet belt, velvet elastic band silicone pressure adhesive tape, computer jacquard elastic, elastic yarn-dyed, computer jacquard belt, crochet belt, ribbon, rib band, reflective band, transparent shoulder straps, PP belt, cotton belt, yarn-dyed belt, with special knitting, flat knitting belt, green onions with special gold and silver, printing tapes, cluster belt, belts, harnesses and so on more than 30,000 varieties.

主要产品有：双面丝绒带，单面丝绒带，弹性丝绒带矽利康压胶带，电脑提花松紧带，色织松紧带，电脑提花带，钩边带，丝带，罗纹带，反光带，透明肩带， PP 带，纯棉带，色织带，特种针织带，平面针织带，特种金银葱带，印花带，子母带，腰带，吊带等 30000 多个品种。

The essay through the research of the need of the customer, the competition environment and the native strength and weakness of GDCATV broad band network, used Michael Porter competition strategy analysis method and SWOT strategic analysis model to evaluation the marketing situations, anatomise the deep-seated develop obstacle of GDCATV broad band network recently, then advanced the solution plan accordingly, according to the characteristic of TV broadcasting s business structure system, put forward the marketing strategy suggestion of GDCATV broad band network in a systemic way, and describe the whole content and steps of how to implement the strategy.

本论文通过对广东有线视讯宽带网的客户需求、竞争环境、本身的优劣势进行调研，采取了迈克尔·波特竞争战略分析方法和SWOT战略分析模型进行分析评价，剖析了广东有线视讯宽带网现阶段深层次的发展阻碍，进而提出了对症下药的解决方案，针对广电行业的业务结构体系特色，从系统的角度提出了广东有线视讯宽带网应采取的发展战略建议，并详细地描述了战略实施的内容和步骤，为广东有线视讯宽带网乃至整个广电行业提供了一个发展的思路。

Based on the comparison of the infrared spectra of polyamide homologues, on the changes in the infrared spectra of deuterated and iodine-treated samples of polycaprolactam, and also on the observations of the infrared dichroism of drawn film , the main absorption bands of polycaprolactam in the region 400 cm(-1)-1400cm-1, which are rather structure sensitive, have been assigned as follows: 1370 cm-1 band-VC-N;, 1265 cm-1 and 1205 cm-1 bands-; 1170 cm-1 band-VC-N; 730 cm-1 band-γCH2 of (CH2)n w...

根据对聚酰胺类高聚物红外光谱的类比和对聚酰胺6试样进行氘化和碘处理后红外光谱的改变，以及根据对拉伸过的聚酰胺6薄膜试样的偏振红外光谱的观察，我们对聚酰胺6红外光谱中400cm~(-1)—1400cm~(-1)之间的主要吸收带，作了如下解释：1370cm~(-1)吸收带为ν_；1265cm~(-1)和1205cm~(-1)吸收带为δ_+ν_；1170cm~(-1)吸收带为ν_；730cm~(-1)吸收带为γ_(CH_2)[当(CH_2)_n的n≥4时]；690cm~(-1)吸收带为δ_；580cm~(-1)吸收带亦为δ_。

Based on the comparison of the infrared spectra of polyamide homologues, on the changes in the infrared spectra of deuterated and iodine-treated samples of polycaprolactam, and also on the observations of the infrared dichroism of drawn film, the main absorption bands of polycaprolactam in the region 400 cm(-1)-1400cm-1, which are rather structure sensitive, have been assigned as follows: 1370 cm-1 band-VC-N;, 1265 cm-1 and 1205 cm-1 bands-; 1170 cm-1 band-VC-N; 730 cm-1 band-γCH2 of (CH2)n when n≥...

根据对聚酰胺类高聚物红外光谱的类比和对聚酰胺6试样进行氘化和碘处理后红外光谱的改变，以及根据对拉伸过的聚酰胺6薄膜试样的偏振红外光谱的观察，我们对聚酰胺6红外光谱中400cm~(-1)—1400cm~(-1)之间的主要吸收带，作了如下解释：1370cm~(-1)吸收带为ν_；1265cm~(-1)和1205cm~(-1)吸收带为δ_+ν_；1170cm~(-1)吸收带为ν_；730cm~(-1)吸收带为γ_(CH_2)[当(CH_2)_n的n≥4时]；690cm~(-1)吸收带为δ_；580cm~(-1)吸收带亦为δ_。

There are three parts included. The first part is the prepositive-amplifier, it gets broadband high gain and flat frequency response. The second part is the U band quadrupler, which composed of two doublers using a PHEMT chip HMMC-5040, a Schottky diode of DMK-2790, a HMMC-5040 amplifier, and a fin-line transitional stage. Maximum output power higher than 60mW is obtained in V band. The third part is a 2nd harmonic gunn oscillator injection locked by the Fundamental Wave,which get about 2GHz locked bandwidth in W band.

电路主要由三部分组成，第一部分为采用HMMC-5618设计的前置放大器，实现了宽带高增益和平坦的频率响应；第二部分为设计的主体，由HMMC-5040设计的二倍频器、DMK-2790设计的二倍频器、HMMC-5040设计的放大器及鳍线过渡段组成的U波段四倍频器，在U波段实现了最高60mW以上的输出功率；第三部分为基波注入锁定谐波Gunn振荡器，在W波段实现了近2GHz锁定带宽。

Also included is a conversion unit that converts a receiving signal of a first frequency band received via the antenna duplexer into a second frequency band lower than the first frequency band.

还包括转换单元，该转换单元将经由所述天线双工器接收的第一频带的接收信号转换为比所述第一频带低的第二频带。

The results indicated that four SOD bands were identified in five tissues, and the band with the biggest mobility ratio were found weakly in gill, digestive gland and adductor muscle but not in foot and mantle. Two ATPase bands were found in four tissues except digestive gland. One MDH band was found in five tissues, but the MDH gene expressed strongly in foot and adductor muscle. Two ME bands were examined in foot, adductor muscle and mantle, but the band with smaller mobility ratio was found in gill and digestive gland.

结果表明，SOD在紫贻贝的5种组织中均有表达，共有4条酶带，但迁移率最大的酶带在足和外套膜中未出现，而在另外3种组织中呈弱表达；ATPase在除消化腺外的组织中都表现为2条带；MDH在5种组织中都表达出1条酶带，其中足和闭壳肌的MDH染色最深；ME存在1~2条酶带，其中迁移率大的条带在5种组织中都有表达，而迁移率小的条带只存在于外套膜、闭壳肌和足中。

A first step, his thumb and index finger hook rubber band, when the index finger and middle finger to maintain a state of closure, in the friction of the rubber band when the two cross-cutting, with the middle finger caught rubber band, releasing the index finger and then the index finger

第一步，拇指和食指钩住皮筋，此时食指与中指保持合拢的状态，在摩擦两个交叉的皮筋时，用中指挂住皮筋，松开食指，然后再用食指钩住皮筋，这样皮筋就出来了。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。