The fluence distribution must be known for absolute gamma ray measurements in spherical radiation fields.
注量率分布是球面源伽玛射线强度绝对测量的必需参数。
In this paper, a hybrid method which combines the physical optics method with the rays theory is used for calculating the radiation fields of the reflector antenna.
本文论述了运用物理光学、射线理论混合分析反射面天线的过程,确定了混合方法在计算一般反射面天线时的分界区域。
Objective To compare the acute radiation reactions and sequelae with different radiation fields and different modes of fractionated radiotherapy for nasopharyngeal carcinoma.
目的比较不同照射野或不同剂量分割放疗鼻咽癌的急性放射反应及后遗症。
Detection system makes the core equipment for collecting feature information of radiation fields, and is the key point and technical basis for carrying out pulsed radiation detection.
探测系统是获取辐射场特征信息的核心器件,是实施脉冲辐射探测的关键和技术基础,其性能直接决定测试数据的质量和测试方法的选择。
Purpose: to assess the adequacy of common iliac lymph node coverage of conventional pelvic radiation fields for the treatment of cervical carcinoma, using computed tomography (CT) images.
目的:使用CT图像评价宫颈癌传统盆腔照射野对髂总淋巴结的包含程度。
A fast method for electromagnetic scattering and radiation problems pertinent to objects above a lossy ground is presented, and the scattering and radiation fields by grounds are taken into account.
本文引入一种求解有耗地面上方物体的电磁散射和辐射问题的快速算法,能有效地计入地面反射效应对散射和辐射场的影响。
Normally the galaxy's magnetic fields protect us from that radiation.
正常来说银河的磁力场会保护我们免受这种辐射侵袭。
That is because light is a form of electromagnetic radiation—in other words, a wave in which electric and magnetic fields continuously leapfrog each other.
那时因为光是以一种电磁辐射的形式存在的——换句话说,光就是一种波,在这种波里,电场与磁场不断地相互进行着交替作用。
Radiofrequency waves are electromagnetic fields, and unlike ionizing radiation such as X-rays or gamma rays, cannot break chemical bonds nor cause ionization in the human body.
射频波就是电磁场,但是与X射线或伽玛射线辐射等电离辐射不同的是,射频波不会打破化学键,也不会给人体造成电离辐射伤害。
Radiation stress fields were provided by the wave model and coupled to produce storm tide predictions along the coastline during landfalling hurricanes.
而波浪模块得出的辐射压力场则被耦合于飓风登陆时的海岸风暴潮位预测中。
The present paper reviews the research progress in application of gene chips and comparative proteomics in electromagnetic radiation such as microwave and electromagnetic fields.
本文就基因芯片技术和比较蛋白质组学在微波、电磁场等电磁辐射领域中的应用及其研究进展进行综述。
In this paper, the chemical systems, present status of studying and development, application fields and the development tendency of radiation curing adhesives were summarized.
本文介绍了辐射固化胶粘剂的化学体系,国内外的研究开发现状,应用领域和发展趋势。
A degree in radiobiology can be a stepping stone to a career as a radiation oncologist, or a researcher in cancer treatment, nuclear safety, genetic engineering, and other fields.
放射生物学的学位证书是将来成为放射肿瘤学家、癌症治疗研究员、核安全从业者、基因工程师或其他相关人员的踏脚石。
Studies have focused on three fields: the radiation dose levels currently encountered in interventional procedures, the consequent risk to operators and patients and protection methods.
现有研究的主要集中于三个方面:目前放射性介入操作中的剂量水平、操作人员和患者的辐射危险以及辐射防护措施。
Terahertz radiation is a newly developed coherent far infrared source, which has been applied in many research fields.
太赫兹辐射是一种新型的远红外相干辐射源,近年来在不同的研究领域得到了广泛的应用。
Electric Dipole Radiation. The Radiation Field, the Near Fields. Radiated Power. Example: Charge in Circular Motion.
电偶极辐射。辐射场,近场。辐射功率。实例:圆周运动之电荷。
The near fields of electromagnetic radiation systems are calculated by using the Finite-Difference Time-Domain (FD-TD) method.
本文讨论了用时域有限差分法计算电磁辐射系统的近场问题。
Work on simultaneous reconstruction of 2-D temperature fields and radiation parameters in a furnace has been going on.
以炉膛为研究对象,开展了二维温度场与辐射参数同时重建的研究。
It has especially significant effect on conducted interference and compromise through radiation from other information products in some fields where data processing is widely applied.
特别是有些数据处理应用较多的地方,对于传导干扰和其他信息产品辐射泄密有着非常明显的效果。
The paper builds relevant early warning and detection mechanism of conduction and radiation based upon the approach and method of electromagnetic fields interfering wired communication equipments.
论文基于电磁场干扰有线通信设备的途径与方法,建立了相应的传导预警探测和辐射预警探测机制。
For the radiation of a plate and a sphere, the acoustic fields are reconstructed, and the numeral calculation results agree with the theoretic results.
针对平板辐射和球形声源辐射的声场进行重构,数值计算的结果与理论分析结果一致。
Recently, radiation detection based on the digital signal processing has been widely applied in the fields as high energy physics, radiation imaging and so on.
近年来,基于数字信号处理的辐射探测技术在高能物理、辐射成像等领域中应用的越来越广泛。
Time-dependent electromagnetic fields and Maxwell's equations. Electromagnetic waves, emission, absorption, and scattering of radiation.
时变电磁场与马克思威尔方程式、电磁波、电磁辐射特性(发射,吸收及散射)。
Numerical results are reported of a model of the stimulated radiation force on a two-level atom, which is excited by two laser fields of different frequencies.
本文报道了在两束不同频率、不同传播方向的光束作用于二能级原子的受激辐射压力的数值结果。
Moreover, an equivalent substitution model for field to wire coupling of the radiation EMI fields coupling to the equipment external cable is presented.
然后,提出了一种求解辐射场通过场线耦合形成对设备干扰的等效替代模型。
Radiofrequency waves are electromagnetic fields, and unlike ionizing radiation such as X-rays or gamma rays, can neither break chemical bonds nor cause ionization in the human body.
射频波电磁场,电离辐射,如X射线或伽玛射线不同,既不能破坏化学键,也不在人体造成电离。
Radiation technology has found an increasingly wide utilization in many fields, and more and more attention has been paid to the decommissioning of cobalt sources.
辐照技术的应用日益广泛,辐射源的退役也越来越受到关注。
Radiation technology has found an increasingly wide utilization in many fields, and more and more attention has been paid to the decommissioning of cobalt sources.
辐照技术的应用日益广泛,辐射源的退役也越来越受到关注。
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