辐射

The experimental results show that the SOM method can get the best result for lesion recognition, the recognition rate of pork tissue and liver tissue are 96.1% and 91.7%, respectively. The recognition rate for PCA-LDA method is lower than that of SOM method because the feature of tissue lesion is linear indivisible.An effective clinic scheme is developed for NETE, and some problems are discussed. For example, nonuniform temperature field conduced by nonuniform energy field; tissue database construction; movement of HIFU transducer with ultrasonic transducer; rectification of HIFU parameters.

临床方案做了总体设计，并讨论了在临床应用中需要考虑的一些问题，如因HIFU辐射能量分布不均匀导致的焦域的温度场不均匀的问题，数据库的建立问题，HIFU换能器和超声探头的位移的问题以及HIFU辐射参数的确定问题等。

Paired ionization chambers used for the dosimetry of mixed gamma-neutron field in reactor, consist of a tissue-equivalent chamber which responds to both neutron and gamma radiation, and a nonhydrogenous chamber which is relatively insensitive to neutron.

采用对中子和γ辐射具有相似灵敏度的组织等效电离室与对中子不太灵敏而对γ辐射灵敏的无氢电离室配对，组成双电离室探测器，测量反应堆混合场中的中子和γ剂量率，具有较高的测量精度。

For clarity's sake, the frequency range of nonionizing radiation used in wireless communications is referred to as "radiofrequency/microwave radiation" or RF/MW.

为明确起见，频率范围的辐射nonionizing中使用的无线通信被称为&射频/微波辐射&或射频/兆瓦。

In letters dated July and September 2002, scientists from the Radiation Protection Division of the US Environmental Protection Agency (2) stated that they are concerned about the burgeoning exposure of the public to nonionizing radiation, and that claims that the FCC guidelines are protective of all possible mechanisms of damage are unjustified.

信中年7月和2002年9月，科学家从辐射防护司的美国环境保护局（ 2 ）指出，他们担心新兴的曝光，市民nonionizing辐射，并声称， FCC的准则是保护所有可能的机制的损害是没有道理的。

To begin with, we discuss the single scattering property of the pigment particle, and compute the scattering parameters of homogeneous sphere, coated sphere, spheroid, and other nonspherical particle.

本文从红外辐射与颜料粒子的相互作用的微观物理机制和涂层中热辐射传输方程出发，对红外与雷达波兼容隐身的机理，进行了深入的研究。

They are compound nucleus statistical process and two nonstatistical process ,i.

所考虑的反应机制有复合核统计过程和复合核弹性散射道中的辐射俘获及形状弹性散射道中的直接-半直接辐射俘获两种非统计过程。

CdSe nanoclusters were overcoated with CdS shell in aqueous medium, which resulted in elimination of deep defects on surface of nanoparticles and thus large increase of the emission intensity of CdSe nanoclusters.(4) Based on PL emission and excitation results and the theoretical calculation on fine structure of bandedge exciton, a model of formation of excimer within the small clusters was proposed to explain the large Stokes shift of luminescence from absorption edge observed in PL results.

有机包覆剂虽然可以控制颗粒的长大，但无法同时消除由Ⅱ族和Ⅵ族两种元素的悬挂键在表面形成的无辐射复合缺陷中心，本文实现了在水溶胶中将宽带隙CdS半导体材料外延生长在CdSe纳米颗粒表面，有效的消除了无辐射复合缺陷中心，使得样品在室温就可以测到带边发光。

Polysaccharides from parmelia tinctorium have protective effect on radiation-injured mice.

石花多糖对辐射损伤小鼠具有良好的辐射防护作用。

This suggests persistent expression of SiDIV and ceasing of SiCYC1A and SiCYC1B in late peloric flower stage may generate the actinomorphic flower.

综此推测，变异型的花发育成辐射对称可能是由於开花晚期时SiCYC表现量下降及SiDIV持续表现，造成花发育后期两侧对称性的无法继续维持，而成了辐射对称花形式。

Hese perturbation could be ascribed to a 〓∑〓 perturbing state interacting with the B〓∑〓 state, which was reported for the first time.

iN分子的B〓∑〓-X〓∑〓跃迁（0，0）带辐射没有微扰，在（1，0）带辐射中存在四个微扰。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。