高灵敏度的

With the development of science and technology, sensitive, rapid, reproducible, simple and accurate analytical methods are required for the determination of trace elements in geological, biological and environmental samples. The direct determination of extremely low concentration of trace element with modern atomic spectroscopic method, such as atomic absorption spectrometry is so difficult. On one hand, the limitations are associated not only with the insufficient sensitivity of these techniques but also with matrix interference.

随着科学技术技术的发展，在进行地质、环境、生物等样品中痕量金属元素的测定时，常常要求达到ppb级的水平，虽然火焰原子吸收分光光度法具有很高的灵敏度，但是要直接测定这些样品中的痕量组分却很难，这是因为，一方面，样品本身的物理化学状态有的不适合直接测定，或组分的含量低于分析方法的灵敏度；另一方面是存在基体干扰。

Measurements of sensitivity showed that the films annealed at 500℃ had high ethanol sensitivity (67%), the sensitivity of butane is not high in the temperature around 225℃.

退火温度500℃的样品在工作温度225℃时，对乙醇有较高的灵敏度，灵敏度达67%，对丁烷的灵敏度不高。

When measuring the water permeability, people used to make the cell in the circumstance of hypotonicity. Our research has contrast the other method to make the cell in the circumstance of hyperosmotic using FluoStar Optima in CHO-V163S-AQP4、FRT-V163S-AQP1 and SMMC-7221-V163S. We has confirmed that the latter is more sensitive and accurate than the former in the process of high throughput screening AQP inhibitor drug on the first time.

在测定细胞水通透性变化时，人们通常采用给细胞造成低渗环境的方法，本研究将给细胞造成高渗环境的方法与之做了对比研究，应用FluoStar Optima荧光仪对CHO-V163S-AQP4、FRT-V163S-AQP1以及SMMC-7221-V163S进行两种方法对比测定，首次证明了，在高通量药物筛选AQP阻断剂过程中，后者较前者灵敏度更高、测定结果更准确。

The sensitivity and specificity of catalase was 25% and 100%, and of HAP2 was 90.6% and 60%. The results showed that the antigenicity of HAP2 is sensitive in detecting false negative sera group and may be applied to serodiagnosis in combination with other immunodominant antigens.

其中catalase的灵敏度和准确度为25％和100％，而HAP2则为90.6％及60％，显示HAP2具有较佳的抗原性，并对伪阴性血清样本有很高的灵敏度，未来可与其他高抗原性蛋白组合应用於幽门螺旋杆菌感染的检测。

Producing sound of high volume and intensity .

高频率高强度比低频率高强度对灵敏度高的精密测量设备的破坏性大得多。

Measure character: Frequency limits: CH1:dResolution of C ～ 225MHz frequency: 10 / second time-interval resolution : N/A measures speed: Can amount to 200 times measure / the second mixes in limits of the voltage on GPIB sensitivity : DC ～ 100MHz: 200MHz of ～ of 5Vac+dc 100MHz of 20mVrms ～±: 225MHz of ～ of 5Vac+dc 200MHz of 30mVrms ～±: Input of 5Vac+dc of 40mVrms ～± adjusts:(CH1 chooses) impedance, coupling: 1M Ω or 50 Ω, ac or Dc are low connect filter: 100kHz, but switch attenuation:× 1 or reference of × 10 exterior time base inputs: 1, 5, 10MHz sparks: CH1, to rising / drop the edge sparks, the percentage that uses signal n or absolutely voltage install n, setting sensitivity mixes to low, medium or tall gate start: Automatic, the hand is moved (setting gate time or resolution digit); Exterior, defer interface: Standard GP-IB(IEEE 488.1 and 488.2), take; of SCPI compatible language to say RS-232 power source only: 10 ％ of 100-120VAC ±, 50, 60 or 10 ％ of 400Hz ± 10 ％ of 220-240VAC ±, 50 or 10 ％ of 60Hz ± are suttle: 3kg dimension: 348.3mm of × of 212.6 × 88.5H

测量特征：频率规模：CH1：dc～225MHz 频率分辨率：10位/秒时候距离分辨率：N/A 测量速度：可达200次测量/秒在GPIB上电压规模和灵敏度： DC～100MHz： 20mVrms～±5Vac+dc 100MHz～200MHz：30mVrms～±5Vac+dc 200MHz～225MHz：40mVrms～±5Vac+dc 输入调节：(CH1选择)阻抗，耦合： 1MΩ或50Ω，ac或dc 低通滤波器： 100kHz，可切换衰减：×1或×10 外部时基参考输入： 1，5，10MHz 触发： CH1，对回升/回升沿触发，用信号电平的百分数或相对电压设置电平，设置灵敏度至低、中或高闸门和启动：主动，手动(设置闸门时候或分辨率位数)；外部，延迟接口：尺度GP-IB(IEEE 488.1和488.2)，带SCPI兼容说话；只讲RS-232 电源：100-120VAC±10％，50，60或400Hz±10％ 220-240VAC±10％，50或60Hz±10％净重：3kg 尺寸：212.6×88.5×348.3mm

And it is especially applicable to quick measurement for great batch of samples.3 MT dynamics in blood , feces and urine,and MT accumulation in tissues and organs of DLY pigs and WD pigs were also conducted by a isotopic tracing method using MT labeled with ~(125)I ~(125)I-MT which was affused through mouth..It was shown that MT was absorbted perfectly with a tardigrade mode and remained about 31 hours in the digestive tract of both DLY pigs and WD pigs . MT excreted from feces and urine of DLY pigs accounted for 7.91 and 21.45 percent of total MT affused through mouth while MT excreted from feces and urine of WD pigs accounted for 10.09 and 11.85 percent of total MT affused through mouth, respectively.

灵敏度为4.1ng/ml，批内变异系数和批间变异系数分别为9.06%和12.35%，具有特异性强、灵敏度较高、稳定性和重复性好、适合于大批量样品检测等特点。3利用~(125)I标记MT~(125I-MT进行同位素示踪，研究了MT在杜长大杂交猪和杂种野猪体内吸收速率、代谢过程、排泄途径、在各组织器官中存留规律和代谢动力学，发现MT在杂交猪和杂种野猪体内能被完整地吸收，但吸收速度较慢；MT在消化道内存留时间为31h左右；MT在杜长大杂交猪粪中和尿中排出量分别占灌喂总量的7.91%和21.45%，杂种野猪相应值分别为10.09%和11.85%，二者尿中排出的MT量差异显著(P.01)。

The sensors had high sensitivity. Their sensitivity was about twice of that of other thin film manganin gauges and was very close to that of foil gauges.

传感器的灵敏度高，约为其他单位研制的薄膜锰铜计的1倍，而与现用的低GPa的箔式锰铜计的灵敏度相近。

The frequency-dependent sensitivity coefficients with respect to the parameters of the radial layers are computed quantitatively. Comparing the horizontal permeability with the vertical permeability, the horizontal mobility plays the predominant role over the entire frequency range. The Stoneley wave is more sensitive to the velocity of the horizontally propagating SH wave than the flexural wave.

利用灵敏度曲线定量研究了不同频率下地层各个参数对相速度和衰减系数的贡献大小，主要结果显示模式波的衰减受水平渗透率影响明显，而垂直渗透率的变化对模式波几乎无影响；斯通利波对水平向传播的横波速度比弯曲波的灵敏度高。

The shift in the peak extinction wavelength and the change in the corresponding intensity of the LSPR band as a function of the refractive index of the solution are 71 nm/RIU and 0.21 a.u./RIU, respectively. The penetration depth of the electromagnetic field excited by LSPR upon the response of the sensing film is estimated to be about 16 nm.

研究结果表明，所制备的LSPR传感膜粒子分布均匀、单分散性好、稳定性高、重现性好；消光峰位对样品溶液折射率的检测灵敏度为71 nm/RIU，相应的峰强检测灵敏度为0.21 AU/RIU，对表面吸附层的渗透深度约为16 nm。

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