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| 1 | Multicenter study of the clinicopathological features and recurrence risk prediction model of early-stage breast cancer with low-positive human epidermal growth factor receptor 2 expression in China (Chinese Society of Breast Surgery 021)显示文摘Background:Breast cancer with low-positive human epidermal growth factor receptor 2(HER2)expression has triggered further refinement of evaluation criteria for HER2 expression.We studied the clinicopathological features of early-stage breast cancer with low-positive HER2 expression in China and analyzed prognostic factors.Methods:Clinical and pathological data and prognostic information of patients with early-stage breast cancer with low-positive HER2 expression treated by the member units of the Chinese Society of Breast Surgery and Chinese Society of Surgery of Chinese Medical Association,from January 2015 to December 2016 were collected.The prognostic factors of these patients were analyzed.Results:Twenty-nine hospitals provided valid cases.From 2015 to 2016,a total of 25,096 cases of early-stage breast cancer were treated,7642(30.5%)of which had low-positive HER2 expression and were included in the study.After ineligible cases were excluded,6486 patients were included in the study.The median follow-up time was 57 months(4-76 months).The disease-free survival rate was 92.1%at 5 years,and the overall survival rate was 97.4%at 5 years.At the follow-up,506(7.8%)cases of metastasis and 167(2.6%)deaths were noted.Multivariate Cox regression analysis showed that tumor stage,lymphvascular invasion,and the Ki67 index were related to recurrence and metastasis(P<0.05).The recurrence risk prediction model was established using a machine learning model and showed that the area under the receiving operator characteristic curve was 0.815(95%confidence interval:0.750-0.880).Conclusions:Early-stage breast cancer patients with low-positive HER2 expression account for 30.5%of all patients.Tumor stage,lymphvascular invasion,and the Ki67 index are factors affecting prognosis.The recurrence prediction model for breast cancer with low-positive HER2 expression based on a machine learning model had a good clinical reference value for predicting the recurrence risk at 5 years.Trial registration:ChiCTR.org.cn,ChiCTR2100046766. | Ling Xin Qian Wu Chongming Zhan Hongyan Qin Hongyu Xiang Ling Xu Jingming Ye Xuening Duan Yinhua Liu Chinese Society of Breast Surgery(CSBrS) Chinese Society of Surgery of Chinese Medical Association | 2022 | Chinese Medical Journal2022，，6： | 9 |
| 2 | Distributed cooperative localization based on Gaussian message passing on factor graph in wireless networks显示文摘In conventional localization, agents may not be able to reach sufficient number of anchors to obtain unambiguous locations, especially in sparse networks. Cooperative localization is a promising solution in that harsh environment, which enables the agents to cooperate with each other by exchanging location information and performing range measurements. In this paper, a distributed cooperative localization method based on factor graph is proposed in wireless networks. Gaussian parametric messages are used to represent the messages passed on factor graph. However, because of the nonlinear observation model, no closed-form solutions can be obtained. To solve this problem, the Taylor expansion is used to approximate the nonlinear terms in message updating, which leads to the Gaussian message passing on factor graph. Accordingly, only two parameters of the Gaussian distribution have to be transmitted and the communication overhead for localization can be significantly reduced. The two proposed algorithms for the application with accurate and inaccurate anchors,respectively, are evaluated by Monte Carlo simulations and compared with the SPAWN and maximum likelihood(ML) estimator. The results show that the proposed algorithms can perform very close to SPAWN with much lower computational complexity, and it outperforms the ML estimator significantly. | WU Nan LI Bin WANG Hua XING ChengWen KUANG JingMing | 2015 | Science China(Information Sciences)2015，58，4： | 4 |
| 3 | Estimating soil ammonium adsorption using pedotransfer functions in an irrigation district of the North China Plain显示文摘Extensive use of chemical fertilizers in agriculture can induce high concentration of ammonium nitrogen(NH4^(+)_(-)N) in soil. Desorption and leaching of NH4^(+)_(-)N has led to pollution of natural waters. The adsorption of NH4^(+)_(-)N in soil plays an important role in the fate of the NH4^(+)_(-)N. Understanding the adsorption characteristics of NH4^(+)_(-)N is necessary to ascertain and predict its fate in the soil-water environment, and pedotransfer functions(PTFs) could be a convenient method for quantification of the adsorption parameters. Ammonium nitrogen adsorption capacity, isotherms, and their influencing factors were investigated for various soils in an irrigation district of the North China Plain. Fourteen agricultural soils with three types of texture(silt, silty loam, and sandy loam) were collected from topsoil to perform batch experiments. Silt and silty loam soils had higher NH4^(+)_(-)N adsorption capacity than sandy loam soils.Clay and silt contents significantly affected the adsorption capacity of NH4^(+)_(-)N in the different soils. The adsorption isotherms of NH4^(+)_(-)N in the 14 soils fit well using the Freundlich, Langmuir, and Temkin models. The models’ adsorption parameters were significantly related to soil properties including clay,silt, and organic carbon contents and Fe^(2+) and Fe^(3+) ion concentrations in the groundwater. The PTFs that relate soil and groundwater properties to soil NH4^(+)_(-)N adsorption isotherms were derived using multiple regressions where the coefficients were predicted using the Bayesian method. The PTFs of the three adsorption isotherm models were successfully verified and could be useful tools to help predict NH4^(+)_(-)N adsorption at a regional scale in irrigation districts. | Chunying WANG Defeng WU Xiaomin MAO Jingming HOU Lei WANG Yuping HAN | 2021 | Pedosphere2021，31，1： | 4 |
| 4 | Outage probability analysis for superposition coded symmetric relaying显示文摘Superposition coded symmetric relaying is a bandwidth-efficient cooperative scheme where each source node simultaneously transmits both its own 'local' packet and 'relay' packet that originated at its partner by adding the modulated local and relay signals in Euclidean space. This paper investigates the power allocation and outage probability of a superposition coded symmetric relaying system with finite-constellation signaling. We first derive the mutual information (MI) metrics for the system. The derived MI metrics consist of two parts: one represents the MI conveyed by the modulated signal corresponding to its own data, and the other represents the MI conveyed by the modulated signal corresponding to its partner's data. Using MI based effective signal-to-noise ratio mapping technique, we attain expressions for the outage probability. Furthermore, we discuss power allocation policies that minimize the outage probability. Simulation results are presented to verify the correctness of the outage probability analysis and the benefits of the power allocation. | WU Yi ZHENG Meng FEI ZeSong LARSSON Erik G. KUANG JingMing | 2013 | Science China(Information Sciences)2013，56，2： | 3 |
| 5 | Induction of priming by cold stress via inducible volatile cues in neighboring tea plants^FA显示文摘Plants have evolved sophisticated defense mechanisms to overcome their sessile nature.However,if and how volatiles from cold‐stressed plants can trigger interplant communication is still unknown.Here,we provide the first evidence for interplant communication via inducible volatiles in cold stress.The volatiles,including nerolidol,geraniol,linalool,and methyl salicylate,emitted from cold‐stressed tea plants play key role(s)in priming cold tolerance of their neighbors via a C‐repeatbinding factors‐dependent pathway.The knowledge will help us to understand how plants respond to volatile cues in cold stress and agricultural ecosystems. | Mingyue Zhao Lu Wang Jingming Wang Jieyang Jin Na Zhang Lei Lei Ting Gao Tingting Jing Shangrui Zhang Yi Wu Bin Wu Yunqing Hu Xiaochun Wan Wilfried Schwab Chuankui Song | 2020 | Journal of Integrative Plant Biology2020，62，10： | 2 |
| 6 | Study on the matrix effect in the determination of selected pharmaceutical residues in seawater by solid- phase extraction and ultrmhigh-performance liquid chro- matograph - eleetrospray ioniaation low-energy coLlision- induced dissociation tandem mass spectrometry显示文摘 | Jingming Wu Xiaoqing Qian Zhaoguang Yang Lifeng Zhang | 2010 | Jour- nal of Chromatography A2010，1217，： | 1 |
| 7 | Relationships between net primary productivity and stand age for several forest types and their influence on China’s carbon balance显示文摘 | Shaoqiang Wang Lei Zhou Jingming Chen Weimin Ju Xianfeng Feng Weixing Wu | 2011 | Journal of Environmental Management2011，，6： | 1 |
| 8 | Parametric message passing-based relative navigation in joint tactical information distribution system显示文摘Relative navigation is a key feature in the joint tactical information distribution system(JTIDS).A parametric message passing algorithm based on factor graph is proposed to perform relative navigation in JTIDS.First of all,the joint posterior distribution of all the terminals' positions is represented by factor graph.Because of the nonlinearity between the positions and time-of-arrival(TOA) measurement,messages cannot be obtained in closed forms by directly using the sum-product algorithm on factor graph.To this end,the Euclidean norm is approximated by Taylor expansion.Then,all the messages on the factor graph can be derived in Gaussian forms,which enables the terminals to transmit means and covariances.Finally,the impact of major error sources on the navigation performance are evaluated by Monte Carlo simulations,e.g.,range measurement noise,priors of position uncertainty and velocity noise.Results show that the proposed algorithm outperforms the extended Kalman filter and cooperative extended Kalman filter in both static and mobile scenarios of the JTIDS. | Nan Wu Bin Li Hua Wang Liang Hou Jingming Kuang | 2016 | Journal of Systems Engineering and Electronics2016，27，1： | 1 |
| 9 | Ion-pair dynamic liquid-phase microextraction combined with injection-port derivatization for the determination of long-chain fatty acids in water samples显示文摘 | WU Jingming LEE H K | 2006 | Journal of Chromatography A2006，1133，12： | 1 |
| 10 | Orthogonal array designs for the optimization of liquid-liquid-liquid microextraction of nonsteroidal anti-inflammatory drugs combined with high-performance liquid chromatography-ultraviolet detection 显示文摘 | Wu Jingming Lee Hian Kee | 2005 | Journal of Chromatography A2005，1092，： | 1 |
| 11 | Efficient degradation of atrazine through in-situ anchoring NiCo_(2)O_(4) nanosheets on biochar to activate sulfite under neutral condition显示文摘Sulfite (S(IV)) is a promising substitute for sulfate radical-based advanced oxidation processes.Here,a composite of in-situ anchoring Ni Co_(2)O_(4)nanosheets on biochar (BC) was firstly employed as a heterogeneous activator for sulfite (Ni Co_(2)O_(4)@BC-sulfite) to degrade atrazine (ATZ) in the neutral environment.The synergistic coupling of BC and Ni Co_(2)O_(4)endows the resulting composite excellent catalytic activity.82% of the degradation ratio of ATZ (1 mg/L) could be achieved within 10 min at initial concentrations of 0.6 g/L Ni Co_(2)O_(4)@BC,3.0 mmol/L sulfite in neutral environment.When further supplementing sulfite into the system at 20 min (considering the depletion of sulfite),outstanding degradation efficiency (100%) were achieved in the next 10 min without any other energy input by the Ni Co_(2)O_(4)@BC-sulfite system.The features of the prepared catalysts and the effects of some key parameters on ATZ degradation were systematically examined.A strong inner-sphere complexation (≡Co_(2)+/Ni^(2+)-SO_(3)^(2-)) was explored between sulfite and the metal sites on the Ni Co_(2)O_(4)@BC surface.The redox cycle of the surface metal efficiently mediated sulfite activation and triggered the series radical chain reactions.The generated radicals,in particular the surface-bound radicals were involved in ATZ degradation.High performance liquid chromatography-tandem mass spectrometry (LC-MS) technique was used to detect the degradation intermediates.Density functional theory (DFT) calculations were performed to illustrate the possible degradation pathways of ATZ.Finally,an underlying mechanism for ATZ removal was proposed.The present study offered a low-cost and sustainable catalyst for sulfite activation to remove ATZ in an environmentally friendly manner from wastewater. | Lizhen Feng Yijin Yuan Xianqin He Mengsi Wu Lizhi Zhang Jingming Gong | 2023 | Journal of Environmental Sciences2023，，4： | 1 |
| 12 | Improved block truncation coding based on the void-and-cluster dithering approach显示文摘 | Guo Jingming Wu Mingfeng | 2009 | IEEE Trans- actions on Image Processing2009，18，1： | 1 |
| 13 | The measurement of responsivity of infrared photodetectors using a cavity blackbody显示文摘For the measurement of responsivity of an infrared photodetector,the most-used radiation source is a blackbody.In such a measurement system,distance between the blackbody,the photodetector and the aperture diameter are two parameters that contribute most measurement errors.In this work,we describe the configuration of our responsivity measurement system in great detail and present a method to calibrate the distance and aperture diameter.The core of this calibration method is to transfer direct measurements of these two parameters into an extraction procedure by fitting the experiment data to the calculated results.The calibration method is proved experimentally with a commercially extended InGaAs detector at a wide range of blackbody temperature,aperture diameter and distance.Then proof procedures are further extended into a detector fabricated in our laboratory and consistent results were obtained. | Nong Li Dongwei Jiang Guowei Wang Weiqiang Chen Wenguang Zhou Junkai Jiang Faran Chang Hongyue Hao Donghai Wu Yingqiang Xu Guiying Shen Hui Xie Jingming Liu Youwen Zhao Fenghua Wang Zhichuan Niu | 2023 | Journal of Semiconductors2023，44，10： | 0 |
| 14 | GENERATE ROUGH TOOL-PATHS FROM UNORGANIZED POINT-CLOUD DIRECTLY显示文摘一条途径被介绍在不平的用机器制造从巨大的未组织起来的数据直接产生不平的没有干扰的工具路径那被以一种 slice-by-slice 方式用机器制造材料的体积执行。未组织起来的点云第一被变换成剖面图数据。然后,柔韧的数据结构说出工具路径网络被构造保存工具路径数据。为划分 sub-cut-areas 并且计算没有干扰的切割器地点的最佳的算法被提出。最后,工具路径在一个之字形 milling 模式被连接,它能被转变成一个旅行出售人问题。实验显示最佳的工具路径能被获得,并且高计算效率能被获得,干扰能成功地被避免。 | WU Shixiong WANG Chengyong FAN Jingming | 2007 | Chinese Journal of Mechanical Engineering2007，20，5： | 0 |
| 15 | A Novel Approach for Image Encryption with Chaos-RNA显示文摘In today’s information society,image encryption technology is crucial to protecting Internet security.However,traditional image encryption algorithms have problems such as insufficient chaotic characteristics,insufficient randomness of keys,and insecure Ribonucleic Acid(RNA)encoding.To address these issues,a chaos-RNA encryption scheme that combines chaotic maps and RNA encoding was proposed in this research.The initial values and parameters of the chaotic system are first generated using the Secure Hash Algorithm 384(SHA-384)function and the plaintext image.Next,the Lühyperchaotic system sequence was introduced to change the image’s pixel values to realize block scrambling,and further disturbance is achieved through spiral index sequence to enhance encryption effectiveness.Subsequently,to obtain the final encrypted image,the diffusion is accomplished through different RNA encoding rules and operation rules corresponding to the chaotic sequence generated by an improved one-dimensional chaotic map(1DCM).Here innovatively propose four new RNA operation rules,increasing the difficulty of decryption.Simulation results demonstrate that the normalized pixel change rate(NPCR)and the unified average changed intensity(UACI)values of the tested encrypted images were 99.61%and 33.46%,respectively.The average ciphertext entropy value in the Red Green Blue(RGB)channels were 7.9986,7.991,and 7.991.Furthermore,this algorithm exhibits a low correlation coefficient and enhanced robustness.This encryption method effectively improves the security and reliability of image encryption compared to other similar techniques. | Yan Hong Shihui Fang Jingming Su Wanqiu Xu Yuhao Wei Juan Wu Zhen Yang | 2023 | Computers, Materials & Continua2023，77，10： | 0 |
| 16 | Turbo equalization based on joint Gaussian,SIC-MMSE and LMMSE for nonlinear satellite channels显示文摘The nonlinear distortion of wideband signal due to the filtering and efficiently operated high power amplifiers limits the performance of satellite communications. Volterra series can be used to describe the nonlinear satellite channels effectively. Most existing equalizers simply ignore the nonlinear terms or treat all the nonlinear combinations of symbols as interference. In this study, by properly exploiting information from nonlinear terms, we propose three turbo equalizers for nonlinear satellite channels, namely, joint Gaussian(JG), soft interference cancellation-minimum mean square error(SIC-MMSE) and linear minimum mean square error(LMMSE) equalizers. In JG and SIC-MMSE-based equalizers, both the linear and nonlinear terms that contain the symbol of interest are considered as desired signals. Accordingly, the required statistics are calculated based on the a priori probabilities of coded bits from output of channel decoder.For LMMSE-based equalizer, we propose to calculate the extrinsic information from output of equalizer by excluding the prior information in both the linear and nonlinear terms. Simulation results demonstrate that the proposed equalizers significantly outperform the method which ignores the presence of nonlinear interferences. Moreover, the nonlinear terms that contain the symbol of interest can be exploited to further improve the performance of turbo equalization. | Zheren LONG Hua WANG Nan WU Jingming KUANG | 2018 | Science China(Information Sciences)2018，61，4： | 0 |
| 17 | Investigation and analysis of vascular plant resources and diversity in Wuyi Mountain,Fujian Province显示文摘Wuyi Mountain,located in the north of Fujian Province,China,is renowned for its abundant medicinal plant resources.In July 2014,the 8th(second team)of Shenyang Pharmaceutical University’s Chinese Medicine Resources Scientific Expedition Team conducted field investigation in the area.Through specimen collection and extensive literature review,the team identified and analyzed 223 vascular plant species from 175 genera and 85 families.The most dominant families were Compositae and Rosaceae,and perennial herbs were the predominant species,accounting for 44.39%of the total species identified.Notably,we documented five precious and rare medicinal plants unique to Wuyi Mountain.This study updates the database of plant resources and diversity in the region,providing a valuable reference for future studies.Finally,we put forward some suggestions to enhance the conservation and sustainable utilization of Wuyi Mountain’s plant resources. | Peiying Chen Ruru Xiong Jun Yuan Minglong Huang Zhuo Tao Bowen Zhang Fanglin Luo Lisha Liu Qian Wang You Zhou Haofan Zhang Zijie Wei Jie Yang Jiangang Chen Kui Wu Anhua Wang Jingming Jia | 2024 | Asian Journal of Traditional Medicines2024，19，1： | 0 |
| 18 | A Metric Space with Transfinite Asymptotic Dimension 2ω+1显示文摘The authors construct a metric space whose transfinite asymptotic dimension and complementary-finite asymptotic dimension are both 2ω+1,whereωis the smallest infinite ordinal number.Therefore,an example of a metric space with asymptotic property C is obtained. | Yan WU Jingming ZHU | 2021 | Chinese Annals of Mathematics,Series B2021，42，3： | 0 |
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