查询词典 medium frequency

The frequency selecting absorbing effect of stratum medium on seismic wave keeps more information of medium characteristics in the low-frequency components.

地层介质对地震波的这种选频吸收作用使得在地震波的低频成分中保留了更为丰富的反映介质性质的信息。

The angular distribution of the scattering coefficient of the HH polarization is obtained by numerical implementation, the influence of the fractal dimension, the special fundamental frequency, the scale interval, the permittivity of substrate medium, the permittivity and the mean layer thickness of intermediate medium, the root mean square of rough surface, and the frequency of the incident wave on the bistaticscattering coefficient is discussed.

通过数值计算得到了HH极化下双站散射系数随散射角的变化曲线，讨论了分维、空间基频、标度区间、底层介质介电常数、中间介质介电常数和厚度、粗糙面高度起伏均方根及入射波频率对双站散射系数的影响，得到了平面波入射一维带限Weierstrass分形分层介质粗糙面散射系数的分形特征、基本特征、分区特征和随频率变化的特征。

The simultaneity use of Xiao Er Chuan Ke Ye and Cang Er Zi San intervening asthma and allergic rhinitis,comparing simply use Xiao Er Chuan Ke Ye,has the predominance in prolonging time of introducing asthma and reducing the frequency of nodding breathe,which indicated that the treatment of allergic rhinitis has great importance in asthma control and lessen the degree of asthma(frequency of rat nodding breath).3,The combination high-dose group has better therapeutic effect than dexamethasone group,all Chuan Ke Ye groups and combination low,medium group in the prevention and control of allergic rhinitis symptoms,reduced airway hyper responsiveness,while in improving breath difficulties combination high-dose group has similar effect with western medicine group,and better effect than all Chuan Ke Ye groups and combination low,medium group.Its efficacy increased with the prolonging of treatment time,but fewer side effects,which makes the application safer and more reliable.4,Xiao Er Chuan Ke Ye combining with Cang Er Zi San can obviously improve the pathological changes in rats with bronchial airway remodeling,reducing the serum TGF-β1,IL-4,ECP levels,increasing the level of serum IFN-γand the imbalance IFN-γ/ IL-4 ratio.

而运用小儿喘咳液合苍耳子散同时干预哮喘与过敏性鼻炎，较之单纯使用小儿喘咳液治疗哮喘，其在延长引喘时间、减少点头呼吸频度等方面有明显的优势，说明过敏性鼻炎的治疗，对于控制哮喘发生，减轻哮喘发作的程度，有着重要的意义。3、大剂量的合方在预防和控制过敏性鼻炎症状、降低哮喘气道高反应性方面疗效较地塞米松对照组、喘咳液各剂量组及合方小、中剂量组更优，而改善呼吸困难方面则与西药组相当，优于喘咳液各剂量组及合方小、中剂量组，且其疗效随着治疗时间的延长而增加，但副作用更少，使用更加安全可靠。4、小儿喘咳液合苍耳子散能明显改善气道重塑大鼠支气管的病理改变，同时降低血清TGF-β1、IL-4、ECP水平，提高血清IFN-γ水平及失衡的IFN-γ/IL-4比值。

The following are the expressions for the mean pressure set up at the detection plate and for the time of the signal to progagate from the radiator to the detector:这里是1个公式,省略） where Re is the real part of the expression appearing within the braces, 0 is the density of the medium, vo is the amplitude of the vibrational velocity, c is the speed of sound in the medium, d2 = I +(r/zcos 8, z is the distance between the emitting and receiving plates, B is the angle between the axis of the acoustic channel and the axis of the tube, r = vro/c, v is the flow speed of the fluid, d is the diameter of the pipe, m is the circular frequency, k is the wave number, where a is the radius of the plate (this is taken as the same for the emitting and receiving plates for simplicity, but there is no difficulty in discussing plates differ~mg in radii),,~ is the vibrational frequency of the emitting plate, and The triple sums in the expressions for N~ and N2 may be neglected if the flow speed is low, since the contributions for these become negligible.

以下的表情为代表的压力设置在检测板甲，手持骑枪和时间的信号 progagate从散热器排出到检测器(这里是1个公式、省略)。在什么地方才是真正的出现在背带，表现为0密度的吗当时的媒介的振幅振动速度、c是声音的速度中、d2 =我+ r / z，8、z是距离的发射和接收板、B之间的角度对声信道和轴轴管，r = vro / c，v的流体的流动速率公式，d 管直径的圆频率，m，凯西是波数公式* n，一个是半径的板(这是作为相同的发射和接收吗为了简单，但板板是毫无困难地讨论不同半径)、镁-，~的振动频率的发光，。总结了三倍的表达方式和N2 ~能忽略的流量速度低，因为这些变得微不足道的贡献。

The key components in laser gyro is He-Ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the Lamb half classical theory, and on the base of density matrix theory, the optical Brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter-propagating wave. On the basis of this equations, adopted the simulation software MATLAB and virtual instrument programming language LabWindows/CVI, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock-in of frequency and the characteristic of light intensity and phasic of the counter-propagating wave in laser gyro.

激光陀螺的核心部件为He-Ne环形激光器，而掌握光与介质的相互作用理论是研究激光器的关键，采用拉姆半经典理论为主，在密度矩阵理论的基础上，推导环形谐振腔中描述He-Ne气体增益介质原子运动的光学布洛赫方程，运用介质极化理论得出描述激光陀螺反向行波的光强、位相所满足的自洽场方程组，在此基础上，运用MATLAB仿真软件和虚拟仪器编程语言LabWindows/CVI，对激光陀螺中的介质增益色散特性、频率牵引效应、烧孔效应及模竞争、闭锁效应及环激光的光强和相位特性进行仿真试验研究，并且运用全量子理论，对激光工作原理进行分析，得出二能级系统单模辐射场的光子数密度分布，得出激光场的光子统计分布，仿真激光场的动态建立过程。

The results showed as follows: 3mg/LBA in differentiation medium was favorable for regeneration of callus; addition of 3mg/LABA, sucrose substituted with maltose, or sucrose partially substituted with mannitol in subculture media improved the status of callus in a degree and enhanced the differentiation frequency; partial desiccation treatment significantly increased the regeneration frequency of callus; addition of AgNO3 or CuSO4 in differentiation medium contributed to plant regeneration , The two resistant calli and fifteen regenerated plants were obtained when the calli of mature embryo of 7001S were infected with Agrobacterium carrying bar and CPTI gene.

结果表明：3mg/LBA对分化有利；继代培养基中加入3mg/LABA，以麦芽糖代替蔗糖，或以甘露醇代替部分蔗糖在一定程度上可以改善愈伤组织状态，提高分化率；干燥处理能明显提高愈伤组织分化率；分化培养中添加一定浓度的AgNO3和CuSO4有利于愈伤组织分化。借助农杆菌介导bar基因和CPTI基因对水稻进行遗传转化，获得2块抗性愈伤组织和15棵再生苗。

The results showed as follows 3mgLBA in differentiation medium was favorable for regeneration of callus; addition of 3mgLABA, sucrose substituted with maltose, or sucrose partially substituted with mannitol in subculture media improved the status of callus in a degree and enhanced the differentiation frequency; partial desiccation treatment significantly increased the regeneration frequency of callus; addition of AgNO3 or CuSO4 in differentiation medium contributed to plant regeneration , The two resistant calli and fifteen regenerated plants were obtained when the calli of mature embryo of 7001S were infected with Agrobacterium carrying bar and CPTI gene.

结果表明：3mgLBA对分化有利；继代培养基中加入3mgLABA，以麦芽糖代替蔗糖，或以甘露醇代替部分蔗糖在一定程度上可以改善愈伤组织状态，提高分化率；干燥处理能明显提高愈伤组织分化率；分化培养中添加一定浓度的AgNO3和CuSO4有利于愈伤组织分化。借助农杆菌介导bar基因和CPTI基因对水稻进行遗传转化，获得2块抗性愈伤组织和15棵再生苗。

The mega crystal of Fluorphlogopite Mica produced by the company is the only domestic product, which is good at heat-resistant, anticorrosive with low loss of high frequency medium, high body resistivity, good photopenetrativity, transparence, divestivity, elasticity, unaging, infragility, etc, and mainly applied in the environment of high frequency medium, high temperature vacuum, strong acid and alkali substituting for polyquadrifluorethene, crude mica and quartz glass and other materials.

所研制的氟晶云母大晶体在国内属唯一产品，该产品是一种集耐高温、抗腐蚀、高频介质损耗低、体电阻率高、光波透过率极佳等优点于一身的新材料，并具有透明、可分剥和富有弹性、不老化、不易碎等特性。

The results were showed that embryogenic calli were induced from young leaves, which were cultured on MS medium supplemented with 2,4-D 2mg/L and KT 0.2mg/L. For the proliferation of embryogenic calli, the suitable culture medium was MS+BA 8mg/L +NAA 1mg/L. The development and maturation of somatic embryo could be much improved by using the medium of MS+ZT 2mg/L or BA 5mg/L +IAA 0.2mg/L. For the induction of secondary somatic embryo from integral somatic embryo, the suitable culture medium was MS+KT 0.1mg/L+NAA 0.01 mg/L or MS+ZT 0.1mg/L+NAA 0.01 mg/L, the proliferation frequency is 214%, 256% respectively. The cotyledonary generated from somatic embryos of Aesculus hippocastanum L.

本文就欧洲七叶树的组织培养和体细胞胚发生以及植株再生进行了系统研究，主要结果如下：以植物细胞具有全能性的理论为依据，以欧洲七叶树幼嫩叶片为外植体，进行体细胞胚胎发生研究，研究结果表明，诱导愈伤组织的适宜培养基是MS+2，4-D 2mg／L+KT0.2mg／L，MS+BA 8mg／L+NAA 1mg／L有利于胚性愈伤组织的诱导和增殖，添加ZT 2mg／L或BA 5mg／L和IAA 0.2mg／L的MS培养基有利于体细胞胚发育和成熟，体细胞胚可直接诱导次生胚发生，MS+KT 0.1mg／L+NAA 0.01 mg／L或MS+ZT 0.1mg／L+NAA 0.01 mg／L培养基诱导效果最好，增殖频率分别为214％、256％。

Mechanical strains also regulated the protein and mRNA expression of several differentiation markers, as well as the activation of extracellular signal-regulated kinases, p38 MAP kinase and protein kinase B in a frequency-dependent manner. Furthermore, the inhibition of p38 pathway could block the strain-frequency induced the phenotype modulation of VSMCs, neither ERKs nor Akt. Frequency of mechanical strain, not conditioned medium, regulated the phenotype of VSMCs in a frequency-dependent manner. Rho-GDI alpha was suppressed by the mechanical strain at 1Hz.

采用免疫细胞化学法检测VSMCs形态和排列的变化；RT-PCR和Western blotting检测表型标志分子α-肌动蛋白、肌球蛋白重链(SM1/2)、肌动蛋白相关蛋白SM22α和调宁蛋白(h1-calponin)的mRNA和蛋白水平的变化；抑制剂或RNA干扰阻断可能的信号调节分子的活性或表达，包括p38、细胞外信号调节激酶1/(2extracellular signal-regulated kinases， ERK1/2)、蛋白激酶B和Rho-鸟苷酸解离抑制因子(Rho-guanine nucleotide dissociation inhibitor， Rho-GDI alpha)，研究了不同频率张应变对VSMCs表型转化的影响及其调节机制。

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。