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通量
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  flux
    Research of Effective Neutron Multiplication Factor and Neutron Flux Distribution for Accelerator Driven Sub-Critical System on DF-3 Facility
    在东风3号上开展加速器驱动次临界系统有效增殖系数和中子通量密度分布研究
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    HEAT TRANSFER IN THE HIGH FLUX ENGINEERING TEST REACTOR
    高通量工程试验堆内的传热
短句来源
    PHYSICAL STARTUP OF HIGH FLUX ENGINEERING TEST REACTOR
    高通量工程试验反应堆物理启动
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    The on-line relative measurement of neutron flux distribution in the light water zero-power reactor
    零功率反应堆内中子通量相对分布实时测量
短句来源
    THE CALCULATION OF NEUTRON FLUX AND POWER DISTRIBUTION IN A TWO-DIMENSIONAL LIGHT WATER FUEL ASSEMBLY
    二维轻水堆燃料组件中子通量和功率分布的计算
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  the flux
    The ground simulation tests of proton irradiation for Kapton/Al films were conducted using the space synthesis irradiating facility,in which the energy of protons was chosen as 90 keV, and the flux was 5.0×1011cm-2·s-1.The degradation of optical property was investigated through changes of the spectral reflectance of specimens before and after the irradiation.
    采用空间综合辐照设备对Kapton/Al薄膜进行了质子辐照地面模拟试验,选取质子能量90keV,辐照通量5.0×1011cm-2.s-1。 通过辐照前后光谱反射系数的变化考察了实验样品的光学性能退化特征。
短句来源
    Calculation of the Flux Distribution in Two Dimensional Hexagonal LWR Fuel Assembly
    二维六角形轻水堆燃料组件中子通量分布的计算
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    A study on the flux density of the bremsstrahlung converted from the 200MeV electron beam
    200MeV电子束转换产生的轫致辐射的通量梯度研究
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    Physical model and the analytic expression for calculating the flux of the detector are given.
    给出了计算探测器通量的物理模型及其解析表达式 .
短句来源
    The direct sampling and the reciprocity method are applied to the calculation of the flux measured by a detector.
    采用直接抽样法和倒易方法计算探测器的通量 ,得到了一致的结果 .
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  “通量”译为未确定词的双语例句
    The Physical Design and Calculation of the HFETR
    高通量工程试验反应堆的物理设计和计算
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    The Measurements of the Dynamic State Thermal Parameters of HFETR Fuel Element:the Loss-of-Power Accident,the Shutdown Cooling and the Decay Heat Experiment
    高通量工程试验堆燃料元件动态热工参数测量——全厂断电、停堆冷却与剩余发热实验
短句来源
    The Poison Reactivity Analysis for HFETR
    高通量工程试验反应堆毒物反应性分析
短句来源
    The Hot Assembly Parameters Measurement by Aeroballs in the HFETR
    高通量工程试验堆热盒参数的气动球测量
短句来源
    Measurement of Power Coefficient in HFETR
    高通量工程试验堆的功率系数测量
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  flux
The increased glucose flux through this metabolic pathway has been linked to the development of diabetic complications such as neuropathy, nephropathy, retinopathy, and cataract.
      
In diabetes, increased flux through the polyol pathway has been implicated in the development of diabetic complications such as cataract, retinopathy, neuropathy, and nephropathy.
      
At last, we also get the super-convergence estimates for total flux.
      
Research on a direct torque control for an electrically excited synchronous motor drive with low ripple in flux and torque
      
Therefore, the torque and stator flux linkage ripples are high in the direct torque control (DTC) drive of the ESM with a torque and flux linkage hysteresis controller (basic DTC).
      
更多          
  the flux
Furthermore, the trends of the flux and charge rate with various speeds were analyzed.
      
The influence of the external dimensions, pole numbers and magnet thicknesses of the rotor, and the airgap distances on the flux density, are analyzed and analytical results are given.
      
With the increase of the airgap distance, the flux density under more poles reduces more quickly than under fewer poles.
      
With the increase of the magnet thickness, the flux density is a rising curve, and after the magnet thickness attains a certain point, the flux density is almost a constant.
      
While reducing the diameter of the rotor, the decrease of the flux density slows down as magnet thickness is reduced.
      
更多          


This paper describes a new process of constructing high temperature operation pulse-type fission chamber. This chamber can be operated at a temperature up to 650. Its sensitivity is about 0.1c/sec/n/cm2sec. The plateau length is 250 volts at 650, but 800 volts at room temperature. And it is possible to count at 1 x 105c/sec with less than 10% counting losses. Under about 400 hour's long-term high temperature (650) tests, this chamber shows no sign of deterioration. The fission chamber construction, material,...

This paper describes a new process of constructing high temperature operation pulse-type fission chamber. This chamber can be operated at a temperature up to 650. Its sensitivity is about 0.1c/sec/n/cm2sec. The plateau length is 250 volts at 650, but 800 volts at room temperature. And it is possible to count at 1 x 105c/sec with less than 10% counting losses. Under about 400 hour's long-term high temperature (650) tests, this chamber shows no sign of deterioration. The fission chamber construction, material, manufacturing techniques and the rigid extension are described, and the characteristics of the chamber at 650 are also given. Some problems arising in high temperature tests are discussed in the later part of this paper.

约0.1计数/秒/单位通量,坪长在650℃是250伏而在室温下是800伏,它能进 行1X105计数/秒的计数而损失小于10%。经过近400小时高温考验未发现性能变坏。 文章中说明了裂变室的结构、材料、工艺技术及刚性电缆等,并给出了650℃时裂变室 的各项性能指标。而后,对高温实验中出现的一些问题进行了讨论。

By using multi-factor optimization which consists of a climbing method and a method of reduction of dimensions, calculations have been made to choose the structure of the E-coils (the primary -windings of the air-core transformer) in a small tokamak device with non-circular cross-section, with satisfactory results regarding both physics and engineering. For the transfo-rmer structure chosen, the leakage field distribution and isomagnetic linesinside the liner, the magnetic flux distribution and equi-flux lines...

By using multi-factor optimization which consists of a climbing method and a method of reduction of dimensions, calculations have been made to choose the structure of the E-coils (the primary -windings of the air-core transformer) in a small tokamak device with non-circular cross-section, with satisfactory results regarding both physics and engineering. For the transfo-rmer structure chosen, the leakage field distribution and isomagnetic linesinside the liner, the magnetic flux distribution and equi-flux lines over thewhole device, and the total inductance of the E-coils have been calculated.

本文采用降维法和爬山法相结合的多因素优选法,对一个非圆截面小型环流器装置的E线圈(空芯变压器的初级绕组)进行了结构选择计算,得到了物理上和工程上都比较满意的结果。对选定的变压器结构,分别计算了它在真空室的漏场分布和等漏场线,在整个装置区域的磁通量分布和等磁通量线,以及它的系统总电感。

The HWRR of Institute of Atomic Energy (IAE) was upgraded after 20 years operation. Reconstruction design studies were made. Both physical and thermohydraulic approaches are adopted so that the upgraded reactor can provide higher neutron flux, higher thermal power, larger irradiation spaces and spectrum separation.A tight core lattice with increased ~(235)U enrichment of 3% and flux trap arrangement is chosen in the physical design. Heat removiug capacity is enhanced by means of increasing flow rate of both...

The HWRR of Institute of Atomic Energy (IAE) was upgraded after 20 years operation. Reconstruction design studies were made. Both physical and thermohydraulic approaches are adopted so that the upgraded reactor can provide higher neutron flux, higher thermal power, larger irradiation spaces and spectrum separation.A tight core lattice with increased ~(235)U enrichment of 3% and flux trap arrangement is chosen in the physical design. Heat removiug capacity is enhanced by means of increasing flow rate of both primary and secondary loops, enlarging main heatexchangers, improving cooling tower and readjusting core flow distribution. As a result, reactor power is increased from 10MW to 15MW, maximum thermal neutron flux from 1.2×10~(14) to 2.8×10~(14)n/cm~2·sec and irradiation spaces is enlarged by 2.6 times. Soft neutron spectrum is availabe in the flux trap and outcr D_2O reflector, and hard spectrum in the lattice places. The new reconstructed reactor was named HWRR-2. Operation of HWRR-2 in October 1980 showed all the design characteristics are met.

原子能研究所重水反应堆HWRR-1于1958年建成并投入使用。經过二十年运行后,反应堆于1978年11月停閉进行改建。在HWRR-1运行期間(1958—1978),主要用于基础研究和同位素生产,也兼作燃料材料的輻照試驗和其它用途。实际上它成为一座多用途研究用堆。在使用期間,不少实驗研究和輻照工作要求改善HWRR-1的技术性能,这包括: 1) 更高的中子通量; 2) 较大的輻照和实驗空間; 3) 中子能譜能够分离以适应各种用途; 4) 较大的过剩反应性。 HWRR-1物理性能的主要不足之处在于:实驗管道的中子通量最大处仅1.2×10~(14)n/cm~2·s,后备反应性也较低(13.2%)。虽然燃料元件出堆最大燃耗已达11650MWD/TU,而无明显肿胀,但由于后备反应性小,出堆燃料元件的平均燃耗只有6000MWD/TU,因而增加了运行費用。 HWRR-1在工程布置上的缺点是沒有重水反射层,除活性区栅格內有9根垂直管道外,其余垂直管道全在石墨反射层,那里中子通量低(2×10~(13)n/cm~2·s),环境温度高(250℃),这些管道的用途受到限制。这样,全堆的有用輻照空間较...

原子能研究所重水反应堆HWRR-1于1958年建成并投入使用。經过二十年运行后,反应堆于1978年11月停閉进行改建。在HWRR-1运行期間(1958—1978),主要用于基础研究和同位素生产,也兼作燃料材料的輻照試驗和其它用途。实际上它成为一座多用途研究用堆。在使用期間,不少实驗研究和輻照工作要求改善HWRR-1的技术性能,这包括: 1) 更高的中子通量; 2) 较大的輻照和实驗空間; 3) 中子能譜能够分离以适应各种用途; 4) 较大的过剩反应性。 HWRR-1物理性能的主要不足之处在于:实驗管道的中子通量最大处仅1.2×10~(14)n/cm~2·s,后备反应性也较低(13.2%)。虽然燃料元件出堆最大燃耗已达11650MWD/TU,而无明显肿胀,但由于后备反应性小,出堆燃料元件的平均燃耗只有6000MWD/TU,因而增加了运行費用。 HWRR-1在工程布置上的缺点是沒有重水反射层,除活性区栅格內有9根垂直管道外,其余垂直管道全在石墨反射层,那里中子通量低(2×10~(13)n/cm~2·s),环境温度高(250℃),这些管道的用途受到限制。这样,全堆的有用輻照空間较小,就不能滿足各方面的輻照需求。一座多用途的研究性反应堆常常是重装載的,即装有許多实驗样品、靶料和輻照材料。这既要求反应堆有足够大的实驗空間,还要求有足够多的过剩中子(过剩反应性)。另外,还要求反应堆不同空間具有不同的中子能譜以滿足多种实驗的要求。较高的中子通量是一些要求高輻照强度的实驗所必需的。高中子通量可以縮短实驗輻照时間,可以提高某些实驗的分辨率。正是出于上述考虑,提出了HWRR-1的改建研究。另一方面,經过二十年运行,反应堆的重要部件陆續出現了严重缺陷。如反应堆內壳出現渗漏,燃料管道揷座漏流量高达40%;主热交換器管子4%有严重腐蝕;重水循环泵主叶輪有严重汽蝕,轉子密封套泄漏以及其它等等。这些迹象说明主要部件已接近使用寿期。一般,研究性反应堆設計寿期在二十年左右。这就提出了是关閉反应堆、另建新的反应堆还是改建現有反应堆的問題。經过衡量比较,认为采用改进的途径可以节省大量投资(大約只需新建投资的十分之一)和縮短时間。是符合我国当前情况的。在已經运行二十年之久的反应堆上进行改建設計,受到許多因素的限制。在几何布置方面,由于混凝土生物防护层和石墨反射层砌体保持不作变动,活性区的最大外径和高度已經限定。在冷却和散热能力方面,由于冷却回路是在原有基础上挖掘潜力,反应堆热功率提高的幅度有限。另外,考虑到实施时的强放射性,設計应尽可能使拆卸安装易于进行。提高研究性反应堆的技术性能可从物理和热工二个方面着手考虑。

 
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