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| 1 | Utilization of Sparingly Soluble Phosphate by Red Cloverin Association with Glomus mosseae and Bacillus megaterium显示文摘A pot experiment was conducted to investigate the mobilization of sparingly soluble inorganic andorganic sources of phosphorus (P) by red clover (Trghlium pmtense L.) whose roots were colonized by thearbuscular mycorrhizal (AM) fungus Glomus mosseae and in association with the phosphate-solubilizing(PS) bacterium Bacillus megaterium ACCC10010. Phosphate-solubilizing bacteria and rock phosphate hada synergistic effect on the colonization of plant roots by the AM fungus. There was a positive interactionbetween the PS bacterium and the AM fungus in mobilization of rock phosphate, leading to improved plantP nutrition. In dual inoculation with the AM fungus and the PS bacterium, the main contribution to plantP nutrition was made by the AM fungus. Application of P to the low P soil increased phosphatase activityin the rhizosphere. Alkaline phosphatase activity was significantly promoted by inoculation with either thePS bacterium or the AM fungus. | YAOQING QINGFANGLING 等 | 2002 | Pedosphere2002,12,2: | 19 |
| 2 | An efficient visible-light photocatalyst for CO2 reduction fabricated by cobalt porphyrin and graphitic carbon nitride via covalent bonding显示文摘Nanoparticle photosensitizers possess technical advantages for photocatalytic reactions due to enhanced light harvesting and efficient charge transport.Here we report synthesis of semiconductor nanoparticles through covalent coupling and assembly of metalloporphyrin with condensed carbon nitride.The resultant nanoparticles consist of light harvesting component from the condensed carbon nitride and photocatalytic sites from the metalloporphyrins.This synergetic particle system effectively initiates efficient charge separation and transport and exhibits excellent photocatalytic activity for CO2 reduction.The CO production rate can reach up to 57μmol/(g·h)with a selectivity of 79%over competing H2 evolution.Controlled experiments demonstrate that the combination of light harvesting with photocatalytic activity via covalent assembly is crucial for the high photocatalytic activity.Due to effective charge separation and transfer,the resultant nanoparticle photocatalysts show exceptional photo stability against photo-corrosion under light irradiation,enabling for long-term utilization.This research opens a new way for the development of stable,effective nanoparticle photocatalysts using naturally abundant porphyrin pigments. | Shufang Tian Sudi Chen Xitong Ren Yaoqing Hu Haiyan Hu Jiajie Sun Feng Bai | 2020 | Nano Research2020,13,10: | 9 |
| 3 | Doppler frequency offset estimation and diversity reception scheme of high-speed railway with multiple antennas on separated carriage显示文摘The challenges of severe Doppler effects in high-speed railway are considered. By building a cooperative antenna system, an algorithm of joint channel estimation and Doppler frequency offset (DFO) estimation is proposed based on Ricean channel model. First, a maximum likelihood estimation (MLE) algorithm for DFO is designed, showing that the Doppler estimation can be obtained by estimating moving velocity of the train and the path loss with the exploitation of pilots that are placed inside the frame. Then a joint detection algorithm for the receiver is proposed to exploit multi-antenna diversity gains. Last, the theoretical Crammer Rao bound (CRB) for joint channel estimation and DFO estimation is derived. The steady performance of the system is confirmed by numerical simulations. In particular, when the Ricean fading channel parameter equals 5 and the velocities of train are 100 m/s and 150 m/s, the estimation variances of DFO are very close to the theoretical results obtained by using CRB. Meanwhile, the corresponding signal to noise ratio loss is less than 1.5 dB when the bit error rate is 10-5 for 16QAM signals. | Yaoqing YANG Pingyi FAN | 2012 | Journal of Modern Transportation2012,20,4: | 4 |
| 4 | Optical and scintillation properties of Bi_4Si_3O_(12):RE(RE=Eu^(3+), Sm^(3+),Ho^(3+), Tb^(3+))single crystals显示文摘Bi_4 Si_3 O_(12):RE(BSO:RE, RE = Eu^(3+), Sm^(3+), Ho^(3+), Tb^(3+)) crystals were grown by the modified vertical Bridgeman method, and doping effects on scintillation properties were investigated. Under γ-ray irradiation, the light yield of BSO doped with small doses of Eu^(3+) increases slightly, and the energy resolution improves significantly compared to pure BSO, therefore the ability of distinguishing between particles will be improved for BSO crystals with a small amount of Eu^(3+) dopant. The results show that a small amount of Eu^(3+) doping can sensitize the Bi^(3+) ions. The sensitization effect enables the reduction of intrinsic defects, and thus improves the scintillation properties. However, the relative light yield of BSO:Tb(1.0 mol%) crystal is 4.3%, which is smaller than 5.0% of pure BSO. The improved light yield and energy resolution in the BSO:Eu and BSO:Sm crystals are considered an impressive achievement in the optimization of this scintillator which is already suitable for applications such as dual-readout calorimeters and homogeneous hadron calorimeters. | Xuefeng Xiao Jiayue Xu Haicheng Wei Yaoqing Chu Bobo Yang Xuefeng Zhang | 2019 | Journal of Rare Earths2019,37,3: | 2 |
| 5 | Nonlinear Coupled Mathematical Model for Solid Deformation and Gas Seepage in Fractured Media显示文摘 | Yangsheng Zhao Yaoqing Hu Baohu Zhao Dong Yang | 2004 | Transport in Porous Media2004,,2: | 2 |
| 6 | Working Mechanism of a Kind of Non-resonant Linear Piezoelectric Motor with Flexible Driving End显示文摘A non-resonant piezoelectric linear motor with a flexible driving end,which has an extensive working frequency range and good operation stability,is studied theoretically and experimentally.Based on the microscopic vibration characteristics of the motor stator,the longitudinal vibration model is established for the whole motor system.According to the Coulomb friction model and the motor vibration model,the friction mechanism of the nonresonant piezoelectric linear motor is investigated by dynamical analysis of the whole motor system.Furthermore,the vibration characteristics and mechanical output characteristics of the stator are simulated and experimentally studied on the basis of the friction drive mechanism model.Finally,both the simulation and experimental results show that this kind of motor remain stable in the frequency domain from 2.2 kHz to 3.5 kHz and that when the pre-stress is 4 Nand the driving voltage is 90 V,the maximum velocity of the motor is above 4 mm/s and the maximum thrust is nearly 0.5 N. | Chen Xifu Huang Weiqing Lu Qian Li Ming Ren Yaoqing | 2018 | Transactions of Nanjing University of Aeronautics and Astronautics2018,35,5: | 2 |
| 7 | Seismic performance analysis and design suggestion for frame buildings with cast-in-place staircases显示文摘Many staircases in reinforced concrete (RC) frame structures suffered severe damage during the Wenchuan earthquake. Elastic analyses for 18 RC structure models with and without staircases are conducted and compared to study the influence of the staircase on the stiffness, displacements and internal forces of the structures. To capture the yielding development and damage mechanism of frame structures, elasto-plastic analysis is carried out for one of the 18 models. Based on the features observed in the analyses, a new type of staircase design i.e., isolating them from the master structure to eliminate the effect of K-type struts, is proposed and discussed. It is concluded that the proposed method of staircase isolation is effective and feasible for engineering design, and does not significantly increase the construction cost. | Feng Yuan Wu Xiaobin Xiong Yaoqing Li Congchun Yang Wen | 2013 | Earthquake Engineering and Engineering Vibration2013,12,2: | 2 |
| 8 | The constitute law of gasseepage in rock fractures undergoing three-dimensional stress显示文摘 | Yang Dong Zhao Yangsheng Hu Yaoqing | 2006 | Transport in Porous Media2006,63,3: | 1 |
| 9 | Scientometric trends and knowledge maps of global health systems research显示文摘 | YaoQ Chen K Yao L | 2014 | Health Res Policy Syst2014,12,: | 1 |
| 10 | On the deskins completions and theta completions for maximal subgroups显示文摘 | ZHAO YAOQING | 2000 | Communication in Algebra2000,28,1: | 1 |
| 11 | The constitute law of gas seepage in rock fractures undergoing three-dimensional stress 显示文摘 | Yang Dong Zhao Yangsheng Hu Yaoqing | 2006 | Transport in Porous Media2006,63,3: | 1 |
| 12 | Studies on forma- tion and control of combustion particulate matter in China: a review 显示文摘 | YAOQ LISQ XU H W | | Energy0,34,9: | 1 |
| 13 | The constitute law of gas seepage in rock fractures undergoing three-dimensional stress显示文摘 | Yang Dong Zhao Yangsheng Hu Yaoqing | 2006 | Transport in Porous Media2006,63,3: | 1 |
| 14 | Effects of glass-to-rubber transition of thermosetting resin matrix on the friction and wear properties of friction materials 显示文摘 | Wu Yaoqing Zeng Ming Xu Qingyu | 2012 | Tribology International2012,54,: | 1 |
| 15 | Study on Filtration Performance of Silica/ Alumina Slurry in the Process of Recycling Mother Liquor of NaY Zeolite显示文摘In order to recover the SiO2 contained in the mother liquor in the course of NaY zeolite synthesis to minimize pollution, the influence of various preparation conditions on the filtering velocity of gel slurry was studied using the SiO2/Al2O3 gel recovered from the NaY mother liquor in the laboratory. The results of study had shown that at a SiO2/A12O3 ratio in the feed equating to 9:1 the SiO2 recovery rate and Al2O3utilization rate were high with a faster flow velocity of the filtrate. The pH value of the system had great impact on the flow velocity of filtrate. Between the two methods for regulating the pH value, the one for formation of silica/alumina gel slurry by addition of sulfuric acid prior to adding aluminium sulfate in the solution could secure a faster filtration velocity. The filtration velocity was decreased in tandem with increasing SiO2 concentration in mother liquor, meanwhile an increase in dry filter cake yield. | Guo Yaoqing Ma Yuelong Deng Jinghui(Research Institute of Petroleum Processing, Beijing 100083) | 2004 | China Petroleum Processing & Petrochemical Technology2004,6,1: | 1 |
| 16 | NovelmolecularbeaconstomonitormicroRNAsinnonsmallcelllungcancer显示文摘 | YaoQ ZhangAM MaH etal | 2012 | MolCellProbes2012,26,5: | 1 |
| 17 | Distribution and properties of the genes encoding the biosynthesis of the bacte- rial cofactor, pyrroloquinoline quinone显示文摘 | Shen Yaoqing Bonnot F Imsand E M ct al | 2012 | Biochemistry2012,51,11: | 1 |
| 18 | A simple, rapid, high-fidelity and cost-effective PCR-based two-step DNA synthesis method for long gene sequences显示文摘 | XiongA S YaoQ H PengR H | 2004 | Nucleic Acids Research2004,32,12: | 1 |
| 19 | The Deskins index complex and the mlvability of groups显示文摘 | LI Shirong ZHAO Yaoqing | 1998 | Southeast Asian Bulletin of Mathematics1998,22,: | 1 |
| 20 | Paleozoic tectonic evolution of the Tianshan Orogen, northwestern China显示文摘 | Gao Jun Li Maosong Xiao Xuchang Tang Yaoqing He Guoqi | 1998 | Tectonophysics1998,,1: | 1 |