结果分析中...
检索条件:"关键词=ratio "
条 记 录,以下是1-10
|
视图:
排序:
期刊Effects of Heat Exchange Tube Structural Parameters on Performance of Vehicle Radiator
《电力能源(英文)》2020年第9期1-7,共7页Zeyan Liu Xilei Kong Xiaobiao Han Hui Liu Quanzhen Wang Zhenling Wang 
In order to improve the performance of vehicle radiators, a two-dimensional heat transfer steady-state model of the radiator was set up. The influence of the structural parameters (axial ratio) of the heat exchange tu...显示全部
关键词:Vehicle Radiator Heat Transfer Performance Heat Exchange Tube Structure Parameters Axial ratio 
期刊BER of OFDM System with Multiple NBI Rejection Cascade Complex Coefficient Adaptive IIR Notch Filter
《无线传感网络(英文)》2012年第10期250-255,共6页Aloys N. Mvuma 
In this paper, rejection of multiple narrowband interferers in a binary phase shift keying modulated orthogonal frequency division multiplexing (BPSK-OFDM) system is investigated. The BPSK-OFDM system in consideration...显示全部
关键词:MULTIPLE NARROWBAND Interference CASCADE ADAPTIVE Notch Filter OFDM System Bit Error ratio 
期刊Ability of Optical Coherence Tomography–determined Ganglion Cell Complex Thickness to Total Retinal Thickness ratio to Diagnose Glaucoma
《Journal of glaucoma》Kita, Yoshiyuki MD, PhD[*]; Kita, Ritsuko MD[*]; Takeyama, Asuka MD[*]; Takagi, Seiji MD[*]; Nishimura, Chiaki PhD[?]; Tomita, Goji MD, PhD[*]
Purpose: To evaluate the usefulness of the spectral-domain optical coherence tomography (SD OCT)–determined ganglion cell complex thickness to total retinal thickness ratio (G/T ratio) in diagnosing glaucoma.
关键词:ganglion cell complex glaucoma ratio retinal nerve fiber layer spectral-domain optical coherence tomography 
期刊Additional Sensitivity Penalty of Burst Mode Receivers in Ethernet PON due to Extinction ratio
《光学学报》2003年第S1期647-648,共2页Sub Han Ja-Won Seo Tae-Whan Yoo Man-Seop Lee 
An additional sensitivity penalty of burst mode receivers due to the extinction ratio is analyzed considering the specific transmitter control in Ethernet PON. For an extinction ratio of 6dB, a penalty of 8dB occurs a...显示全部
关键词:PON of Additional Sensitivity Penalty of Burst Mode Receivers in Ethernet PON due to Extinction ratio in 
期刊混合原油粘温数学模型的最优化研究被引量:5
《油气储运》2008年第11期25-27,59,共4页南立团 汪玉春 韩朋科 陈坤明 吴华丽 
根据哈萨克斯坦混合原油实测粘度、温度、混合比例的特点,建立了混合原油的粘度随温度、混合比例变化的数学模型,采用微粒群算法对混合原油的粘温数学模型进行了求解。三个算例的建模、解模过程表明,该优化方法能快速搜索到模型的最优...显示全部
关键词:原油管道 混合原油 粘度 温度 比例 数学模型 优化 
期刊Heat Transfer Analysis for Dropwise-Filmwise Hybrid Surface of Steam on Vertical Plate
《热科学学报:英文版》2021年第3期962-972,共11页ALHASHEM Abdulwahab KHAN Jamil 
A model is proposed to predict and evaluate the heat transfer characteristics of dropwise-filmwise hybrid surface.This is approached by modifying the original drop-size distribution,which is defined for fully dropwise...显示全部
关键词:dropwise-filmwise hybrid surface dropwise condensation region width filmwise condensation region width drop-size distribution maximum radius to region width ratio 
期刊Poisson's ratios and S-wave velocities of the Xishancun landslide,Sichuan,China,inferred from high-frequency receiver functions of local earthquakes
《中国科学:地球科学英文版》2021年第7期1195-1206,共12页Zigen WEI Risheng CHU Zhiwei LI Minhan SHENG Qiu ZENG 
supported by the Strategic Priority Research Program(B)of Chinese Academy of Sciences(Grant No.XDB41000000);the National Natural Science Foundation of China(Grant Nos.41604056,41661164035)。
Landslides are recurrent geological phenomena on Earth that cause heavy casualties and property losses annually.In this study,we use the V_(p)-k stacking and nonlinear waveform inversion methods of high-frequency rece...显示全部
关键词:Xishancun landslide High-frequency receiver functions High Poisson's ratio Low S-wave velocity Landslide stability and hazard mitigation 
期刊Effect of C/N ratio on Nitrogen Removal of A/O-MBBR Process for Treating Mariculture Wastewater
《中国海洋大学学报:英文版》2021年第4期879-885,共7页CHEN Xi XIANG Zhuangzhuang HUANG Xiao RONG Huimin BAI Jie ZHAO Yangguo 
This work was supported by the National Key Research and Development Program of China(No.2018 YFC1407601);the Start-up Foundation for Introducing Talent of NUIST and Guangxi Innovation Driven Development Project(major science and technology project).
In order to explore the effect of carbon and nitrogen(C/N)ratio on the performance of anoxic/aerobic-moving bed bio-film reactor(A/O-MBBR)process for treating mariculture wastewater,a laboratory-scale A/O-MBBR was con...显示全部
关键词:mariculture wastewater C/N ratio A/O-MBBR process EPS 
期刊Phase Structure, Microstructure and Electrical Properties of K_xNa_((1-x))NbO_3 Piezoelectric Ceramics with Different K/Na ratio
《武汉理工大学学报:材料科学英文版》2019年第1期30-34,共5页陈建超 WU Wei SU Shi YU Jishun LEI Xinrong 赵培 
Funded by the National Natural Science Foundation of China(No.51302199);Key Natural Science Foundation of Hubei Province of China for Distinguished Yong Scholars(No.2014CFA044);Cultivation Plan for Science and Technology Talents of Wu Han City(No.2014072704011253);MOST Special Fund from the State Key Laboratory of Geological Process and Mineral Resources(No.MSFGPMR201204);Natural Science Foundation of Hubei Province(No.2014CFB809)
The K_xNa_((1-x))NbO_3(x=0.45, 0.46, 0.47, 0.48, 0.49, 0.50) lead-free piezoelectric ceramics was fabricated by conventional solid-state sintering method. It was found that the ratio of alkaline metal would affect the...显示全部
关键词:LEAD-FREE piezoelectric ceramics SOLID-STATE sintering K/Na ratio electrical properties 
期刊Study on separation technology of Pr and Nd in D_2EHPA-HCl-LA coordination extraction system
《稀土学报:英文版》2010年第S1期111-115,共5页尹少华 吴文远 张博 张丰云 罗瑶 李世伟 边雪 
Project support by the National Natural Science Foundation of China (50974042);Scientific Research Special Foundation of Doctor Subject of Chinese Universities (20090042120015);the Fundamental Research Funds for the Central Universities (N090302007)
The separation coefficient of Nd/Pr was lower in D2EHPA-HCl system. Pointing to this problem,the effect of the acidity of feed and the concentration of lactic acid on the distribution ratio,separation coefficient and ...显示全部
关键词:EXTRACTION of RARE earths COORDINATION EXTRACTION distribution ratio SEPAratioN factors 
共256页<12345678910
聚类工具

北京电子科技职业学院特色库 版权所有 ©2018