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| 1 | XCO_2 satellite retrieval experiments in short-wave infrared spectrum and ground-based validation显示文摘Based on the optimal estimation method, a satellite XCO2 retrieval algorithm was constructed by combining LBLRTM with VLIDORT. One-year GOSAT/TANSO observations over four TCCON stations were tested by our algorithm, and retrieval results were compared with GOSAT L2 B products and ground-based FTS measurements. Meanwhile, the influence of CO2 line mixing effect on retrieval was estimated, and the research showed that neglecting CO2 line mixing effect could result in approximately 0.25% XCO2 underestimation. The accuracy of XCO2 retrievals was similar to GOSAT L2 B products at cloud-free footprints with aerosol optical depth less than 0.3, and 1% accuracy of XCO2 retrievals can be reached based on the validation result with TCCON measurements. | ZHOU MinQiang ZHANG XingYing WANG PuCai WANG ShuPeng GUO LiLi HU LieQun | 2015 | Science China Earth Sciences2015，58，7： | 4 |
| 2 | Identification of portal vein tumor thrombus with an independent clonal origin in hepatocellular carcinoma via multi-omics data analysis显示文摘Objective: Multiple mechanisms underlying the development of portal vein tumor thrombus(PVTT) in hepatocellular carcinoma(HCC) have been reported recently. However, the origins of PVTT remain unknown. Increasing multi-omics data on PVTTs in HCCs have made it possible to investigate whether PVTTs originate from the corresponding primary tumors(Ts).Methods: The clonal relationship between PVTTs and their corresponding primary Ts was investigated using datasets deposited in public databases. One DNA copy number variations dataset and three gene expression datasets were downloaded for the analyses.Clonality analysis was performed to investigate the clonal relationship between PVTTs and Ts from an individual patient.Differential gene expression analysis was applied to investigate the gene expression profiles of PVTTs and Ts.Results: One out of 19 PVTTs had no clonal relationship with its corresponding T, whereas the others did. The PVTTs with independent clonal origin showed different gene expression and enrichment in biological processes from the primary Ts. Based on the unique gene expression profiles, a gene signature including 24 genes was used to identify pairs of PVTTs and primary Ts without any clonal relationship. Validation in three datasets showed that these types of pairs of PVTTs and Ts can be identified by the 24-gene signature.Conclusions: Our findings show a direct evidence for PVTT origin and consolidate the heterogeneity of PVTTs observed in clinic.The results suggest that PVTT investigation at a molecular level is clinically necessary for diagnosis and treatment. | Shupeng Liu Zaixin Zhou Yin Jia Jie Xue Zhiyong Liu Kai Cheng Shuqun Cheng Shanrong Liu | 2019 | Cancer Biology & Medicine2019，16，1： | 1 |
| 3 | Plant drought tolerance trait is the key parameter in improving the modeling of terrestrial transpiration in arid and semi-arid regions显示文摘陆面过程蒸腾作用的模拟制约着天气,气候降水预测的精确度.近几十年来,为了更好地描述植被蒸腾的水力约束,陆面过程模式发展了基于植物性状的植物水力胁迫方案.然而,我们对于植物性状在蒸腾模拟中的地位仍然缺乏了解,植物性状对蒸腾的重要性仍需进一步量化.本研究利用Morris方法评估植物性状参数在通用陆面模式植物水力胁迫方案(CoLM-P_(50)HS)中的重要性,针对17种植物性状,筛选出最为重要的:耐旱性状(P_(50)),气孔性状,和光合作用性状.在12个FLUXNET站点中,参数的重要性由归一化敏感度来衡量.P_(50)的重要性随着降水的减少而增加,而气孔性状和光合作用性状的重要性则随着降水的减少而减少.在干旱或半干旱地区,P_(50)比气孔性状和光合作用性状更重要,这意味着当植物经常经历干旱时,水力安全策略比植物生长策略更关键.而耐旱性状的巨大变异性进一步暗示了多种植物水力安全策略的共存.忽视P_(50)的变异性可能会对陆面过程模式蒸腾作用的模拟造成严重误差.因此,为了更好地表示植物水力功能的变异性,需要增加对耐旱性状的观测并耦合到陆面模式中. | Xintao Liu Xingjie Lu Shulei Zhang Zhongwang Wei Nan Wei Shupeng Zhang Hua Yuan Wei Shangguan Shaofeng Liu Jianfeng Huang Lu Li Xiulan Ye Jinxuan Zhou Wenke Hu Yongjiu Dai | 2022 | Atmospheric and Oceanic Science Letters2022，15，1： | 1 |
| 4 | An Improved K-Means Algorithm Based on Initial Clustering Center Optimization显示文摘The K-means algorithm is widely known for its simplicity and fastness in text clustering.However,the selection of the initial clus?tering center with the traditional K-means algorithm is some random,and therefore,the fluctuations and instability of the clustering results are strongly affected by the initial clustering center.This paper proposed an algorithm to select the initial clustering center to eliminate the uncertainty of central point selection.The experiment results show that the improved K-means clustering algorithm is superior to the traditional algorithm. | LI Taihao NAREN Tuya ZHOU Jianshe REN Fuji LIU Shupeng | 2017 | ZTE Communications2017，15，B12： | 0 |
| 5 | Corporate Power for Poverty Alleviation: Evidence from the Poverty Alleviation Results of Chinese Listed Companies显示文摘Government-led poverty alleviation faces multiple constraints and limitations fighting poverty,and it is urgent to mobilize social forces as many as possible,especially the involvement of corporate forces.To figure out whether corporate participation is effective to poverty alleviation and whether regional differences have an impact on it,this paper probes into results of corporate involvement in poverty alleviation,based on corporate social responsibility report information released by A-share listed companies in 2010-2017.The findings are as follows.(1)Companies in the western region,companies directly contacting consumers and large companies with good business performance are more willing to involve in poverty alleviation.(2)The participation of enterprises in poverty alleviation can increase the per capita income of rural residents,which is even better in underdeveloped areas.This revealed that social forces represented by companies have responded to China’s call of targeted poverty alleviation and fulfilled corporate social responsibilities,which will indeed help consolidate the achievements of poverty alleviation and lift underdeveloped areas out of poverty.From the perspective of corporate involvement in poverty alleviation,this paper extends related research on social forces and another participant in poverty alleviation,and enrich the literature on social benefits brought by companies performing social responsibilities. | Liya Liu Shupeng Zhou Yuanchen Pang Xuehan Guo | 2022 | China Finance and Economic Review2022，11，2： | 0 |
| 6 | Phase-Locked Loop Based Cancellation of ECG Power Line Interference显示文摘Power line(PL)interference is one significant artifact in electrocardiography(ECG)that needs to be reduced to ensure accurate recording of cardiac signals.Because PL interference is non-stationary and has varying frequency,phase,and amplitude in ECG measurement,adaptive techniques are often necessary to track and cancel the interference.In this paper we present a phase-locked loop(PLL)-based adaptive filter to cancel PL interference.The PLL obtains the reference signal that is fed into the adaptive filter to remove the PL interference at the central frequency of 50 Hz.It is found that the technique can effectively cancel PL interference in real ECG signals and,when compared with some existing techniques such as least mean squares(LMS)adaptive filter,the new technique produces better results in terms of signal-to-interference ratio(SIR). | LI Taihao ZHOU Jianshe LIU Shupeng SHI Jinsheng REN Fuji | 2018 | ZTE Communications2018，16，1： | 0 |
| 7 | Bionic Stepping Motors Driven by Piezoelectric Materials显示文摘By imitating the behavioral characteristics of some typical animals, researchers develop bionic stepping motors to extend the working range of piezoelectric materials and utilize their high accuracy advantage as well. A comprehensive review of the bionic stepping motors driven by piezoelectric materials is presented in this work. The main parts of stepping piezoelectric motors, including the feeding module, clamping module, and other critical components, are introduced elaborately. We classify the bionic stepping piezoelectric motors into inchworm motors, seal motors, and inertia motors depending on their main structure modules, and present the mutual transformation relationships among the three types. In terms of the relative position relationships among the main structure modules, each of the inchworm motors, seal motors, and inertia motors can further be divided into walker type, pusher type, and hybrid type. The configurations and working principles of all bionic stepping piezoelectric motors are reported, followed by a discussion of the advantages and disadvantages of the performance for each type. This work provides theoretical support and thoughtful insights for the understanding, analysis, design, and application of the bionic stepping piezoelectric motors. | Shupeng Wang Shihui Zhou Xiaolong Zhang Pengyun Xu Zhihui Zhang Luquan Ren | 2023 | Journal of Bionic Engineering2023，20，3： | 0 |
| 8 | Prevalence and Severity of HBV-Associated Acute-on-Chronic Liver Failure Due to Irregular Medication of Nucleos(t)ide Analogs显示文摘Hepatitis B virus(HBV)represents the commonest etiologic agent of acute-on-chronic liver failure(ACLF)in most Asian countries.Nucleos(t)ide analogs(NAs)are effective in the treatment of chronic HBV infections,but may also exacerbate the disease and stimulate its development into HBV-associated ACLF if not used appropriately.The current study aimed to assess the prevalence and severity of HBV-associated ACLF as a result from irregular medication of NAs(IMNA).A total of 1134 individuals with HBV-associated ACLF in nine hospitals in Heilongjiang Province were enrolled in this study between 2005 and 2015.Among these,777 chronic hepatitis B(CHB)and 357 HBV-associated liver cirrhosis cases were classified based on various predisposing factors,including IMNA,HBV reactivation(HBVR),infections,treatment drugs,alcohol use and others(hepatitis C virus,hepatitis E virus,gastrointestinal bleeding and unknown reasons).The percentage and improvement rate were examined.Among individuals with HBV-associated ACLF and CHB,IMNA was found in 9.01%,HBVR in 46.20%,infections in 9.52%,treatment drugs in 14.67%,alcohol in 11.71%,and others in 24.58%as predisposing factors.Improvement rates in cases with IMNA,HBVR,infections,treatment drugs,alcohol and others were 41.43%,58.50%,58.11%,56.14%,53.85%,and 65.97%,respectively.Multivariable analysis showed that IMNA,others,infections,hepatic encephalopathy and hepatorenal syndrome were associated with prognosis.Only IMNA independently predicted HBV-associated ACLF prognosis.Overall,our study demonstrated that the percentage of IMNAinduced HBV-associated ACLF was 12.61%,and worse disease conditions resulted from IMNA compared with other factors.Thus,the suitability of treatment with NAs should be thoroughly evaluated. | Ying Zheng Shu Chen Yanxin Huang Lisheng Jiang Yongguo Li Yinghua Lan Shuchen Li Yuqin Xu Xiaodong Li Hongwei Zhao Yanbo Wang Ying Shen Chao Wei Honglin Zhou Rongshan Fan Xiqiu Zeng Mingxia Jiang Shupeng Song Mingyan Xu | 2021 | Infectious Microbes & Diseases2021，3，4： | 0 |
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