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| 1 | Approximate Iteration Detection and Precoding in Massive MIMO显示文摘Massive multiple-input multiple-output provides improved energy efficiency and spectral efficiency in 5 G. However it requires large-scale matrix computation with tremendous complexity, especially for data detection and precoding. Recently, many detection and precoding methods were proposed using approximate iteration methods, which meet the demand of precision with low complexity. In this paper, we compare these approximate iteration methods in precision and complexity, and then improve these methods with iteration refinement at the cost of little complexity and no extra hardware resource. By derivation, our proposal is a combination of three approximate iteration methods in essence and provides remarkable precision improvement on desired vectors. The results show that our proposal provides 27%-83% normalized mean-squared error improvement of the detection symbol vector and precoding symbol vector. Moreover, we find the bit-error rate is mainly controlled by soft-input soft-output Viterbi decoding when using approximate iteration methods. Further, only considering the effect on soft-input soft-output Viterbi decoding, the simulation results show that using a rough estimation for the filter matrix of minimum mean square error detection to calculating log-likelihood ratio could provideenough good bit-error rate performance, especially when the ratio of base station antennas number and the users number is not too large. | Chuan Tang Yerong Tao Yancang Chen Cang Liu Luechao Yuan Zuocheng Xing | 2018 | China Communications2018，15，5： | 5 |
| 2 | GLOBAL OPTIMIZATION OF PUMP CONFIGURATION PROBLEM USING EXTENDED CROWDING GENETIC ALGORITHM显示文摘An extended crowding genetic algorithm (ECGA) is introduced for solving optimal pump configuration problem,which was presented by T.Westerlund in 1994.This problem has been found to be non-convex,and the objective function contained several local optima and global optimality could not be ensured by all the traditional MINLP optimization method.The concepts of species conserving and composite encoding are introduced to crowding genetic algorithm (CGA) for maintain the diversity of population more effectively and coping with the continuous and/or discrete variables in MINLP problem.The solution of three-levels pump configuration got from DICOPT++ software (OA algorithm) is also given.By comparing with the solutions obtained from DICOPT++,ECP method,and MIN-MIN method,the ECGA algorithm proved to be very effective in finding the global optimal solution of multi-levels pump configuration via using the problem-specific information. | ZhangGuijun WuTihua YeRong | 2004 | Chinese Journal of Mechanical Engineering2004，17，2： | 3 |
| 3 | Free fatty acids induce endothelial dysfunction and activate protein kinase C and nuclear factor-κB pathway in rat aorta显示文摘 | Hua Li Hongliang Li Yige Bao Xiangxun Zhang Yerong Yu | 2010 | International Journal of Cardiology2010，，2： | 3 |
| 4 | Effect of Konjac Food on Blood Glucose Level in Patients with Diabetes显示文摘Seventy-two type II diabetic subjects were given Konjac food for 65 days. The data analyzed by multiple F test indicate that the fasting blood glucose (FBG) and the 2-h postprandial blood glucose (PBG) on the 30th and the 65th days after the food was ingested were significantly reduced (P = 0.001, P < 0.001, respectively), as was the glycosylated hemoglobin level at the end of the trial (P < 0.05). The final FBG and PBG of the subjects with initial FBG-O >200 mg% decreased on the average by 51.8 and 84.6 mg%. respectively; those with FBG-0 150-200 mg% decreased by 24.1 and 68.7 mg%; and those with FBG-O < 150 mg% decreased by 4.8 and 21.4 mg%. No significant changes in blood lipid indexes were observed, except that the triglycer-ide values of subjects with hypertriglyceridemia (>200 mg%) significantly decreased by 118.7 mg%. It was concluded that Konjac food is very useful in the prevention and treatment of hyperglycemia. (C)1990 Academic Press. Inc. | HUANG CHENG-YU,~*ZHANG MAO-YU,~*PENG SHU-SHENG,~*HONG JUN-RONG,~*WANG XU,~*JIANG HUIJUN,~*ZHANG FULIN,~*BAI YUNXIANG,~*LIANG JINZHONG,Yu YERONG,LUO ZHAOTIAN,ZHANG XIANGXUN,AND ZHOU ZANCHENG~*School of Public Health, West China University of Medical Sciences (WCUMS). Chengdu, China Department of Endocrinology, First University Hospital of WCUMS, Chengdu, China and Staff Hospital of 107 Post Office Box, Chengdu, China | 1990 | Biomedical and Environmental Sciences1990，3，2： | 2 |
| 5 | New Evidence for Improving Omega Estimation by Explicitly Considering Horizontal Divergence显示文摘It is well known that the quasi-geostrophic(QG) omega equation with only two contributors respectively associated with vorticity advection(VA) and temperature advection is derived for midlatitude synoptic-scale systems only. Based on reliable reanalysis data, new evidence revealed by cyclonic and anticyclonic cases indicates that forecasters might sometimes experience problems by paying too much attention to the 500-hPa VA when estimating vertical motions not only in subtropical systems but also in systems meeting all the assumptions of the QG omega equation. Our investigations also showed that explicitly considering the vertical profiles of horizontal divergence could allow for better interpretation of vertical motions and weather in these real cases, suggesting that this equation might not be sufficient due to the presence of only two horizontaldivergence-related(HDR) mechanisms and the absence of other HDR mechanisms, e.g., frictional force, mountain barriers, diabatic/adiabatic processes, and acceleration/deceleration of air flows. | YUAN Zhuojian QI Jindian GAO Shouting FENG Yerong XU Pengcheng WU Naigeng | 2014 | Advances in Atmospheric Sciences2014，31，2： | 2 |
| 6 | Efficient closed-form solution for target localization using TDOA measurements in the presence of sensor position errors显示文摘An efficient solution for locating a target was proposed, which by using time difference of arrival(TDOA) measurements in the presence of random sensor position errors to increase the accuracy of estimation. The cause of position estimation errors in two-stage weighted least squares(TSWLS) method is analyzed to develop a simple and effective method for improving the localization performance. Specifically, the reference sensor is selected again and the coordinate system is rotated according to preliminary estimated target position by using TSWLS method, and the final position estimation of the target is obtained by using weighted least squares(WLS). The proposed approach exhibits a closed-form and is as efficient as TSWLS method. Simulation results show that the proposed approach yields low estimation bias and improved robustness with increasing sensor position errors and thus can easily achieve the Cramer-Rao lower bound(CRLB) easily and effectively improve the localization accuracy. | Yan Leibing Zhang Yerong Lu Yin | 2017 | The Journal of China Universities of Posts and Telecommunications2017，24，4： | 1 |
| 7 | An effective time-domain microwave image reconstruction algorithm for loss-y layered media utilizing the ADI-FDTD method显示文摘The finite-difference time-domain( FDTD) method is extensively applied in dealing with time-domain microwave imaging( MWI) problems since it is robust,fast,simple to implement. However,the FDTD method is an explicit time-stepping technique,due to the constraint of the Courant-Friedrich-Levy( CFL) stability condition,the time step needs to be as small as the size of the fine cells,which brings a major increase in computational costs. A fast nonlinear electromagnetic reconstruction algorithm for layered loss-y media by using the alternating-direction implicit finite-difference time-domain( ADI-FDTD) method is proposed. This algorithm is based on an adjoint method,and the nonlinear iterations apply the ADI-FDTD method to calculate the forward and adjoint field,and adopt the Polak,Ribiere,Polyar conjugate-gradient( PRP-CG) optimization scheme. By comparing the simulation results based on ADI-FDTD method and the FDTD method,the validity and efficiency of the proposed algorithm have been proved. Furthermore,the relative residual errors( RRE) are introduced as the iterative computation termination conditions,which further prove the accuracy of this algorithm. | Chen Biyun Zhang Yerong Pan Xin | 2018 | The Journal of China Universities of Posts and Telecommunications2018，25，2： | 1 |
| 8 | Improving the Nowcasting of Strong Convection by Assimilating Both Wind and Reflectivity Observations of Phased Array Radar:A Case Study显示文摘With the advent of the phased array radar(PAR)technology,it is possible to capture the development and evolution of convective systems in a much shorter time interval and with higher spatial resolution than via traditional Doppler radar.Research on the assimilation of PAR observations in numerical weather prediction models is still in its infancy in China.In this paper,the impact of assimilating PAR data on model forecasts was investigated by a case study of a local heavy rainfall event that occurred over Foshan city of Guangdong Province on 26 August 2020,via a series of sensitivity experiments.Both the retrieved three-dimensional wind and hydrometeor fields were assimilated through the nudging method with the Tropical Regional Assimilation Model for South China Sea_Rapid Update Cycle_1km(TRAMS_RUC_1km).The temperature and moisture fields were also adjusted accordingly.The results show that significant improvements are made in the experiments with latent heat nudging and adjustment of the water vapor field,which implies the importance of thermodynamic balance in the initialization of the convective system and highlights the need to assimilate PAR radar observations in a continuous manner to maximize the impact of the data.Sensitivity tests also indicate that the relaxation time should be less than 5 min.In general,for this case,the assimilation of PAR data can significantly improve the nowcasting skill of the regional heavy precipitation.This study is the first step towards operational PAR data assimilation in numerical weather prediction in southern China. | Xiaoxia LIN Yerong FENG Daosheng XU Yuntao JIAN Fei HUANG Jincan HUANG | 2022 | Journal of Meteorological Research2022，36，1： | 1 |
| 9 | Mold deformation in soft UV-nanoimprint lithography显示文摘UV-nanoimprint lithography (UV-NIL) using a soft mold is a promising technique with low cost and high throughput for producing the submicron scale large-area patterns. However, the deformations of the soft mold during imprinting process which can cause serious consequences have to be understood for the practical application of the process. This paper investigated the deformation of the soft mold by theoretical analyses, numerical simulations, and experimental studies. We simulated the mold deformation using a simplified model and finite element method. The simulation and the related experimental results agree well with each other. Through the investigation, the mechanism and affected factors of the mold deformation are revealed, and some useful conclusions have been achieved. These results will be valuable in optimizing the imprinting process conditions and mold design for improving the quality of transferred patterns. | LAN HongBo DING YuCheng LIU HongZhong QUE YeRong TAO WeiWei LI HanSong LU BingHeng | 2009 | Science China(Technological Sciences)2009，52，2： | 1 |
| 10 | Simulation and analysis of 60 GHz millimeter-wave indoor propagation characteristics base on the method of SBR/Image 显示文摘 | LIU Yuanjian SHI Qinjian ZHANG Yerong | 2013 | Pro- gress in Eleetromagnetics Research2013，43，： | 1 |
| 11 | A numerical simulation of latent heating within Typhoon Molave显示文摘The weather research and forecasting(WRF) model is a new generation mesoscale numerical model with a fine grid resolution(2 km), making it ideal to simulate the macro-and micro-physical processes and latent heating within Typhoon Molave(2009). Simulations based on a single-moment, six-class microphysical scheme are shown to be reasonable, following verification of results for the typhoon track, wind intensity, precipitation pattern, as well as inner-core thermodynamic and dynamic structures. After calculating latent heating rate, it is concluded that the total latent heat is mainly derived from condensation below the zero degree isotherm, and from deposition above this isotherm. It is revealed that cloud microphysical processes related to graupel are the most important contributors to the total latent heat. Other important latent heat contributors in the simulated Typhoon Molave are condensation of cloud water, deposition of cloud ice, deposition of snow, initiation of cloud ice crystals, deposition of graupel, accretion of cloud water by graupel, evaporation of cloud water and rainwater,sublimation of snow, sublimation of graupel, melting of graupel, and sublimation of cloud ice. In essence, the simulated latent heat profile is similar to ones recorded by the Tropical Rainfall Measuring Mission, although specific values differ slightly. | LIU Yang LIN Wenshi LI Jiangnan WANG Gang YANG Song FENG Yerong | 2017 | Acta Oceanologica Sinica2017，36，7： | 1 |
| 12 | The Influence of Tropical Cyclone Melor on PM10 Concentrations during an aerosol Episode over the Pearl River Delta Region of China: Numerical Modeling Versus Observational Analysis 显示文摘 | FENG Yerong WANG Anyu WU Dui | 2007 | Atmospheric Environment2007，41，21： | 1 |
| 13 | Spatio- temporal variation trends of satellite-based aerosol opti- cal depth in China during 1980-2008显示文摘 | Guo Jianping Zhang Xiaoye Wu Yerong | 2011 | Atmospheric Environment2011，45，37： | 1 |
| 14 | A real-time through-wall detec- tion based on support vector machine 显示文摘 | WANG Fangfang ZHANG Yerong | 2011 | Journal of Electromag- netic Waves and Applications2011，25，1： | 1 |
| 15 | Global Survey of Phosphotyrosine Signaling Identifies Oncogenic Kinases in Lung Cancer显示文摘 | Klarisa Rikova Ailan Guo Qingfu Zeng Anthony Possemato Jian Yu Herbert Haack Julie Nardone Kimberly Lee Cynthia Reeves Yu Li Yerong Hu Zhiping Tan Matthew Stokes Laura Sullivan Jeffrey Mitchell Randy Wetzel Joan MacNeill Jian Min Ren Jin Yuan Corey E. Bak | 2007 | Cell2007，，6： | 1 |
| 16 | Acetic acid induced programmed cell death and volatile organic compounds release in Chlamydomonas reinhardtii at acidic conditions 显示文摘 | ZUO Zhaojiang ZHU Yerong BAI Yaling | 2012 | Plant Physiol Biochem2012，51，： | 1 |
| 17 | Effects of Short-cut Flowering Branches on Harvest Time,Yield and Quality of Guire No.82 Mango显示文摘[Objectives]To further study the technology of short-cut flowering branches for Guire No.82 Mango,adjust its harvest time,increase yield and improve fruit quality,and increase the economic benefits of mango production.[Methods]The experiment of short-cut flowering branches was carried out for Guire No.82 Mango.[Results]At the initial flowering stage and full flowering stage of the primary inflorescence,with short-cut flowering branches and corresponding cultivation techniques,Guire No.82 Mango was easy to extract regenerated inflorescences.Compared with the control group,the flowering period of the regenerated inflorescences was delayed by 30-35 d and 40-50 d,respectively;the harvest time was delayed by 30 and 40 d,respectively;the yield significantly increased by 1.63 times and 2.25 times,respectively;compared with the control group,the number of fruits with embryo increased significantly,which were 1.39 and 2.25 times of the control,respectively;there was no significant difference in the fruit quality at the harvest time.[Conclusions]Short-cut flowering branches at the initial flowering stage and full flowering stage of the primary inflorescence is an effective measure to delay the marketing time of Guire No.82 Mango. | Shudan WEI Qianfu CHEN Yong ZHONG Qiang JIANG Jie HUANG Yerong WANG Huili HUANG Jinying YANG Yuanxin CAO | 2022 | Asian Agricultural Research2022，14，7： | 0 |
| 18 | Vector deflection stability control of aero-engine based on linear active disturbance rejection显示文摘Aimed at the problem of instability in engine control caused by vector deflection in experiment of turbofan engines with Axisymmetric Vectoring Exhaust Nozzle(AVEN),a vector deflection stability control method of aero-engine based on Linear Active Disturbance Rejection Control(LADRC)is proposed.Firstly,based on CFD numerical simulation,aerodynamic performance model of AVEN is established,and the aerodynamic load change rule of the nozzle throat area actuator during vector deflection is revealed.Subsequently,the integrated model of AVEN/-turbofan engine is established by Simulink/AMESim co-simulation.Finally,the nozzle throat area control loop based on LADRC is designed.The simulation results show that the integrated model can reflect the influence of vector deflection on the stability of the control system.The accuracy comparison between the fan rotor speed and the test data during vector deflection is larger than 1%,indicating a high degree of confidence.Compared with the conventional PID control,the designed LADRC control loop reduces the speed of the low-pressure rotor during vector deflection by 70%,which effectively improves the control stability of the vector deflection.Meanwhile,the fuel flow ratechange during the vector deflection process is smaller and more economical,which provides an important reference for engineering applications. | Changpeng CAI Yerong PENG Qiangang ZHENG Haibo ZHANG | 2022 | Chinese Journal of Aeronautics2022，35，8： | 0 |
| 19 | Preparation and release of curcumin/silk fibroin/sodium alginate film显示文摘The aim of this study was to prepare silk fibroin/sodium alginate composite film containing curcumin by casting method.Orthogonal test was used to optimize the formulation according to the values of tensile strength and elongation at break.The release of curcumin in the optimal film was studied in order to explore its application as wound dressing.The results showed that the optimum composition of curcumin/silk fibroin/sodium alginate composite film was as follows:Silk fibroin(70 mg/mL)2.7 g,sodium alginate(24 mg/mL)0.84 g,span 40(5.0 mg/mL)0.4 g,glycerol(3.75%,V/V)3 mL,curcumin(0.2 mg/mL)0.016 g.The optimum film showed the tensile strength and the elongation at break was(0.628±0.032)MPa and(0.794±0.046)%,respectively. | Yerong Yuan Jun’an Zheng Zunchao Liu Wei Li Jiaqing Cao Xiangrong Zhang | 2024 | Journal of Polyphenols2024，6，1： | 0 |
| 20 | Analysis of Summertime Typical Pollution in Pearl River Delta Region——Numerical Simulation of Meteorological Field显示文摘Based on meteorological field and air quality observation data,air pollution process over Pearl River Delta( PRD) in August of 2012 was analyzed. There were five notable pollution processes in this month,in which four pollution processes were related to typhoon. By using meso-scale meteorological model WRF,meteorological characteristics of two pollution processes induced by tropical cyclone were contrasted and analyzed. Results showed that O3and PM10concentrations significantly increased in PRD region during Typhoon Haikui period( 7-8 August),and other pollutant concentrations were also high. However,O3and PM10concentrations did not significantly increase during Typhoon Kai-Tak period( 16-17 August). This kind of concentration difference between two processes was related to typhoon pathway,wind direction and velocity,atmospheric boundary layer height,vertical transport and horizontal divergence field. | Zhang Xiaochen Liu Yiming Deng Xuejiao Chen Pakwai Feng Yerong Fan Qi | 2014 | Meteorological and Environmental Research2014，5，4： | 0 |
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