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搜索耗时2.3530秒,为你在为你在102,285,761篇论文里面共找到 22 篇相符的论文内容
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[期刊论文] 作者：Yong Zhao,Pengfei Li,
来源：工程（英文） 年份：2018
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PERFORMANCE OF ULTRA-LOW FREQUENCY PASSIVE VERTICAL VIBRATION ISOLATION SYSTEM WITH REVERSE PENDULUM
[期刊论文] 作者：Zhao Pengfei, Huang Yuying, Ta,
来源：固体力学学报：英文版 年份：2002
A novel long period passive vertical vibration isolator constructed by mounting reverse pendu-lums on two pairs of torsion springs is presented.By theoretical a...
[期刊论文] 作者：ZHAO Pengfei,TIAN Yuming,LIU A,
来源：中国耐火材料：英文版 年份：2015
Based on the needs of the market,a new 52 MPa medium-density and high-strength ceramic proppant was prepared by adopting third grade bauxite and clay as raw mat...
[期刊论文] 作者：Hengqi Liu,Depeng Zhao,Pengfei,
来源：黑龙江科技学院学报 年份：2018
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7...
[期刊论文] 作者：Yong Zhao,Pengfei Li,Siming Ti,
来源：岩石力学与岩土工程学报：英文版 年份：2013
Water inrush and mud gushing are one of the biggest hazards in tunnel construction. Unfavorable geological sections can be observed in almost all railway tunnel...
[期刊论文] 作者：Yong Zhao,Pengfei Li,Siming Tian,,
来源：Journal of Rock Mechanics and Geotechnical Engineering 年份：2013
Water inrush and mud gushing are one of the biggest hazards in tunnel construction. Unfavorable geological sections can be observed in almost all railway tunnel...
Problems Existing in the Production of Angelica sinensis( Oliv. ) Diels in HuiChuan Town Producing R
[期刊论文] 作者：Fenglin LIU,Lei ZHAO,Pengfei XIA,Zhijia CUI,,
来源：Medicinal Plant 年份：2004
At present,there exist two major problems in Angelica sinensis( Oliv.) Diels production in HuiChuan Town producing region, which include breeding and local poor...
The Impact of Nano CaCO3 Modified in situ with Methacrylic Acid on the Structure and Properties of N
[期刊论文] 作者：ZENG Zongqiang,LI Yongzhen,WANG Chao,ZHAO Pengfei,
来源：武汉理工大学学报（材料科学版）（英文版） 年份：2020
Natural rubber (NR) was reinforced in situ with nano CaCO3 that had been modified with methacrylic acid (MAA)(M-CaCO3). The structures and properties of the res...
Description of inverse energy cascade in homogeneous isotropic turbulence using an eigenvalue method
[期刊论文] 作者：Feng LIU,Hantao LIU,Hongkai ZHAO,Pengfei LYU,
来源：应用数学和力学:英文版 年份：2021
Abstract:A description of inverse energy cascade(from small scale to large scale)in homogeneous isotropic turbulence is introduced by using an eigenvalue method.We show a special isotropic turbulence,in which the initial condition is constr......
[期刊论文] 作者：ZENG Zongqiang,LI Yongzhen,ZHAO Pengfei,YU Heping,
来源：武汉理工大学学报（材料科学版）（英文版） 年份：2020
Rice husk ash/natural rubber composites were fabricated by modifying rice husk ash with the rare earth coupling agent DN-8102. The structure of the rice husk ash and the morphological dispersion of the rice husk ash in a rubber matrix were ......
[期刊论文] 作者：Xiaoli Ma,Xiaoyu Guo,Mingbo Zhao,Pengfei Tu,Yong Jiang,,
来源：Acta Pharmaceutica Sinica B 年份：2017
Four new phenolic glycosides,including two flavonoid glycosides(1 and 2) and two lignan glycosides(3 and 4),were isolated from the traditional Chinese medicine...
[期刊论文] 作者：Zhipeng Tong,Gaohong Yu,Xiong Zhao,Pengfei Liu,Bingliang Ye,
来源：中国机械工程学报 年份：2020
It has been challenging to design seedling pick-up mechanism based on given key points and trajectories,because it involves dimensional synthesis and rod length...
[期刊论文] 作者：Guo Pengde,Yan Fei,Tian Cheng,Zhao Pengfei,Wang Zhenchang,Xian Junfang,
来源：中华医学杂志英文版 年份：2014
...
[期刊论文] 作者：Lu Zhao,Pengfei Zhao,Jianhua Zhen,Guangrui Huang,Yini Li,Anlong Xu,
来源：中医科学杂志（英文） 年份：2021
Objective:To clarify the structural and functional characteristics of the gut microbiota in individuals with qi stagnation constitution(QSC)and identify the potential biomarkers related to QSC.Methods:This cross-sectional study involved ind......
[期刊论文] 作者：Han Yu'nan,Ma Tao,Zhang Hongxin,Zhang Kexin,Dai Lin,Zhao Pengfei,,
来源：The Journal of China Universities of Posts and Telecommunica 年份：2015
A novel printed microstrip-fed ladder patch monopole antenna is presented for ultrawide band(UWB) application. The antenna consists of rectangular patch element...
[期刊论文] 作者：Yingying Jian,Wenwen Hu,Zhenhuan Zhao,Pengfei Cheng,Hossam Haick,Mingshui Yao,Weiwei Wu,
来源：纳微快报（英文） 年份：2020
Chemi-resistive sensors based on hybrid functional mate-rials are promising candidates for gas sensing with high responsivity, good selectivity, fast response/r...
Synthesis and in-situ noble metal modification of WO3·0.33H2O nanorods from a tungsten-containing mi
[期刊论文] 作者：Tingting Li,Yanbai Shena,Sikai Zhao,Pengfei Zhou,Xiangxi Zhong,Shuling Gao,Dezhou Wei,Fanli Meng,
来源：中国化学快报（英文版） 年份：2020
Ag-and Pt-doped WO3·0.33H2O nanorods with high response and selectivity to NH3 were synthesized from a tungsten-containing mineral of scheelite concentrate by...
Treatment delay from aneurysmal subarachnoid hemorrhage to endovascular treatment: a high-volume hos
[期刊论文] 作者：Xiaoxi Zhang,Haishuang Tang,Qiao Zuo,Gaici Xue,Guoli Duan,Yi Xu,Bo Hong,Rui Zhao,Pengfei Yang,Jianmin,
来源： 年份：2021
...
Treatment delay from aneurysmal subarachnoid hemorrhage to endovascular treatment: a high-volume hos
[期刊论文] 作者：Xiaoxi Zhang,Haishuang Tang,Qiao Zuo,Gaici Xue,Guoli Duan,Yi Xu,Bo Hong,Rui Zhao,Pengfei Yang,Jianmin,
来源：中华神经外科杂志（英文） 年份：2021
Background::Early treatment for patients with aneurysmal subarachnoid hemorrhage (aSAH) could significantly reduce the risk of re-bleeding and improve clinical outcomes. We assessed the different time intervals from the initial hemorrhage, ......
Pollution levels, composition characteristics and sources of atmospheric PM2.5 in a rural area of th
[期刊论文] 作者：Xiaoxi Zhao,Xiujuan Zhao,Pengfei Liu,Can Ye,Chaoyang Xue,Chenglong Zhang,Yuanyuan Zhang,Chengtang Liu,
来源：环境科学学报（英文版） 年份：2020
The pollution levels,composition characteristics and sources of atmospheric PM2.5 were investigated based on field measurement at a rural site in the North Chin...
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