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| 1 | Mulching mode and planting density affect canopy interception loss of rainfall and water use efficiency of dryland maize on the Loess Plateau of China显示文摘High and efficient use of limited rainwater resources is of crucial importance for the crop production in arid and semi-arid areas. To investigate the effects of different soil and crop management practices(i.e., mulching mode treatments: flat cultivation with non-mulching, flat cultivation with straw mulching, plastic-covered ridge with bare furrow and plastic-covered ridge with straw-covered furrow; and planting density treatments: low planting density of 45,000 plants/hm^2, medium planting density of 67,500 plants/hm^2 and high planting density of 90,000 plants/hm^2) on rainfall partitioning by dryland maize canopy, especially the resulted net rainfall input beneath the maize canopy, we measured the gross rainfall, throughfall and stemflow at different growth stages of dryland maize in 2015 and 2016 on the Loess Plateau of China. The canopy interception loss was estimated by the water balance method. Soil water storage, leaf area index, grain yield(as well as it components) and water use efficiency of dryland maize were measured or calculated. Results showed that the cumulative throughfall, cumulative stemflow and cumulative canopy interception loss during the whole growing season accounted for 42.3%–77.5%, 15.1%–36.3% and 7.4%–21.4% of the total gross rainfall under different treatments, respectively. Soil mulching could promote the growth and development of dryland maize and enhance the capability of stemflow production and canopy interception loss, thereby increasing the relative stemflow and relative canopy interception loss and reducing the relative throughfall. The relative stemflow and relative canopy interception loss generally increased with increasing planting density, while the relative throughfall decreased with increasing planting density. During the two experimental years, mulching mode had no significant influence on net rainfall due to the compensation between throughfall and stemflow, whereas planting density significantly affected net rainfall. The highest grain yield and water use efficiency of dryland maize were obtained under the combination of medium planting density of 67,500 plants/hm^2 and mulching mode of plastic-covered ridge with straw-covered furrow. Soil mulching can reduce soil evaporation and retain more soil water for dryland maize without reducing the net rainfall input beneath the maize canopy, which may alleviate the contradiction between high soil water consumption and insufficient rainfall input of the soil. In conclusion, the application of medium planting density(67,500 plants/hm^2) under plastic-covered ridge with bare furrow is recommended for increasing dryland maize production on the Loess Plateau of China. | ZHENG Jing FAN Junliang ZHANG Fucang YAN Shicheng GUO Jinjin CHEN Dongfeng LI Zhijun | 2018 | Journal of Arid Land2018，10，5： | 6 |
| 2 | A Positive Feedback Loop between Mesenchymal-like Cancer Cells and Macrophages Is Essential to Breast Cancer Metastasis显示文摘 | Shicheng Su Qiang Liu Jingqi Chen Jianing Chen Fei Chen Chonghua He Di Huang Wei Wu Ling Lin Wei Huang Jin Zhang Xiuying Cui Fang Zheng Haiyan Li Herui Yao Fengxi Su Erwei Song | 2014 | Cancer Cell2014，，5： | 3 |
| 3 | Direct Current Control Strategy of SVG Based on Dual Sequence dq Coordinates Under Asymmetric Load Condition显示文摘In the case of asymmetric loads of power grid,load currents are composed of four components:positive sequence active and reactive components and negative sequence active and reactive components that can pollute the power grid with harmonics and reactive power and interrupt the normal operation of power grid.Therefore,increasing numbers of static var generators(SVGs)are used to stabilize the power grid.In this study,a new type of current compensation control strategy of a three-phase three-wire SVG under an asymmetric load is proposed.According to the symmetric component method and dual dq synchronous transformation theory,the load currents are transformed into four components under dual dq coordinates.Each component is compensated separately by the SVG.Simultaneously,the proportional-limiter method is adopted to minimize the harmonics from the SVG by optimizing the waveform of the modulation wave and limiting its amplitude.Finally,the validity and feasibility of the control strategy are verified by simulation and experimental results. | Shicheng Zheng Zhuangzhuang Li Menglin Cao | 2019 | Chinese Journal of Electrical Engineering2019，5，1： | 3 |
| 4 | The pain-related behavior changes correlate with the bone damage in a rat model of rheumatoid arthritis显示文摘Objective: In view of the extensive bone damage in rheumatoid arthritis, we used a commonly utilized animal model to detect behavioral changes in pain-related and the bone damage during the early disease, and to explore the correlation between bone damage and pain-related behavioral changes. Methods: Arthritis were induced in Sprague-Dawley (SD) male rats by injecting complete Freund's adjuvant (CFA) into the tails. Pain-related behavior changes were studied using the Hargreaves, VonFrey, and acetone tests on the 0, 7, 14, day and 28 day after CFA injection. The rats were sacrificed according the same schedule. The bone damage of the right proximal tibia was studied by microCT scan and bone histological slices. Results: Animals developed soft tissue inflammation and polyarthritis on 7 days after CFA injection, and arthritic score proved obvious arthritis were established within the study period. Mechanical hyperalgesia and cold allodynia were present in the affected hind paw from the 7 day through the 28 day, but the heat hyperalgesia and the mechanical allodynia lasted a short time after CFA injection. Trabecular bone number (Tb.N), Tissue Mineral Content (TMC) and Bone Volume to Tissue Volume (BV/TV) in the proximal tibia by microCT scan were also reduced after induction, especial 14 days after CFA injection. The bone histological slices showed the trabecular bone and proteoglycan diminished, the bone damage severity scores became more severely on the 7 day after CFA injection. Using analysis of covariance, these changes had statistical significance compared with baseline. By linear regression analysis demonstrated mechanical hyperalgesia and cold allodynia correlated well with arthritic score, bone damage parameters and bone damage severity scores. Conclusion: Adjuvant-induced arthritis (AA) were observed after CFA injection and lasted within the later experimental period. Pain-related behavioral changes were observed in the early time of AA. Bone damage was also occurred with arthritis development. Pain-related behavioral change correlated well with arthritic score and bone damage parameters. | ZHENG Shicheng WANG Kunzheng FAN Lihong SHI Zhibin CHEN Junchang BAO Hongxiang | 2013 | Journal of Medical Colleges of PLA(China)2013，28，3： | 3 |
| 5 | Overexpression of PITPNM3 promotes hepatocellular carcinoma cell metastasis显示文摘A previous study indicated that C–C chemokine(C–C motif)ligand 18(CCL18)is capable of inducing tumor cell invasion and metastasis by interacting with receptor membrane-associated phosphatidylinositol transfer protein 3(PITPNM3)in breast cancer cells.The present study aims to investigate the correlation between the PITPNM3 expression and metastasis in hepatocellular carcinoma(HCC).Real-time quantitative polymerase chain reaction and Western blot were performed to detect the expression pattern of PITPNM3 in patient samples and HCC cell lines.Wound-healing and transwell chamber assays were performed to assess the migration and invasiveness of HCC cells,and the activation of the signaling protein downstream of PITPNM3 was also detected by Western blot and immunofluorescence.The results revealed that PITPNM3 was upregulated in HCC tissue compared to matched normal liver tissue.Silencing the expression of PITPNM3 by specific siRNAs markedly attenuated the invasive and metastatic abilities of HCC cells,whereas the upregulation of PITPNM3 significantly increased HCC cell mobility.Furthermore,inhibiting the expression of PITPNM3 suppressed the activation of Pyk2,FAK,and Src,while overexpression of PITPNM3enhanced the phosphorylation of FAK and Src in HCC cells.Besides,suppression of Pyk2 can also impair the clustering of integrin.These results imply that PITPNM3 is a vital determinant of HCC migration and invasion. | Chonghua He Shicheng Su Fei Chen Di Huang Fang Zheng Wei Huang Jianing Chen Xiuying Cui Qiang Liu Erwei Song Herui Yao Yujie Liu | 2014 | Chinese Science Bulletin2014，59，12： | 3 |
| 6 | National Alveolar Echinococcosis Distribution--China, 2012−2016显示文摘What is already known about this topic?Both alveolar echinococcosis(AE)and cystic echinococcosis are endemic in China,among which alveolar echinococcosis has a very high mortality rate.What is added by this report?The survey results showed the prevalence and scope of AE in China and identified high-risk groups including children,monks,herdsmen and illiterate people.At the same time,all the cases found in the survey(more than 90%of the patients did not go to the hospital for diagnosis and treatment before survey)were promptly diagnosed and treated.What are the implications for public health practice?This study provides information for the development of a plan for AE prevention and control and for the implementation of interventions targeted to high-risk populations. | Canjun Zheng Chuizhao Xue Shuai Han Zhongjie Li Hu Wang Liying Wang Ying Wang Qian Wang Yu Feng Yanyan Hou Xiao Ma Junying Ma Xiumin Han Gongsang Quzhen Xiaofeng Jiang Weidong Guo Xianglin Wu Yaming Yang Lei Cao Fanka Li Weiqi Chen Xinliu Yan Shicheng Yu Meihua Fu Qing Yu Ning Xiao Jiangping Cao Jun Yan Weiping Wu Xiao-nong Zhou | 2020 | China CDC weekly2020，2，1： | 2 |
| 7 | Puerarin blocks the signaling transmission mediated by P2X 3 in SG and DRG to relieve myocardial ischemic damage显示文摘 | Shuangmei Liu Chunping Zhang Qingming Shi Guilin Li Miaomiao Song Yun Gao Changshui Xu Hong Xu Bo Fan Shicheng Yu Chaoran Zheng Qicheng Zhu Bing Wu Lichao Peng Huangui Xiong Qin Wu Shangdong Liang | 2014 | Brain Research Bulletin2014，，： | 1 |
| 8 | Genome analysis and epidemiological investigation of goose circovirus detected in eastern China显示文摘 | Xuping Yu Chun Zhu Xintian Zheng Shicheng He Xiaoning Liu | 2007 | Virus Genes2007，，3： | 1 |
| 9 | Resistance Identification of Different Flue-cured Tobacco Varieties against Black Shank显示文摘The resistance of 15 flue-cured tobacco varieties were identified by artificial inoculation of black shank. The results showed that K326,Yunyan 202 and NC102 belonged to resistance variety against black shank,and the resistance successively were K326 > Yunyan 202 > NC102; Yunyan 87,Cuibi 5,Yunyan 85,Yunyan 97 and Cuibi 7 belonged to moderate resistance variety against black shank,and the resistance successively were Yunyan 87 > Cuibi 5 > Yunyan 85 >Yunyan 97 > Cuibi 7; Cuibi 12,NC82,PVH06 and Cuibi 14 belonged to moderate susceptible variety against black shank,and the resistance successively were Cuibi 12 > NC82 > PVH06 > Cuibi 14; Cuibi 1 and Hongda belonged to high susceptible variety against black shank,and the resistance successively were Cuibi1 > 09011 > Hongda. The disease dynamics of flue-cured tobacco varieties were positively correlated with variety susceptibility,namely the earlier infection in susceptible variety,the faster the disease progression. | Peng Shicheng Yang Peng Zheng Li Cai Hengbin Guan Yu | 2015 | Plant Diseases and Pests2015，6，4： | 1 |
| 10 | Genome analysis and epidemiological investigation of goose circovirus detected in eastern China显示文摘 | Xuping Yu Chun Zhu Xintian Zheng Shicheng He Xiaoning Liu | 2007 | Virus Genes2007，，3： | 1 |
| 11 | Heterogeneous photocatalytic decomposition of benzene on lanthanum-doped TiO2 film at ambient temperature 显示文摘 | ZHANG Shicheng ZHENG Zhijian WANG Jinhe | 2006 | Chemosphere2006，65，11： | 1 |
| 12 | Gridded reconstruction of the population in the traditional cultivated region of China from 1776 to 1953显示文摘Using modern census and environmental factor data,this study first identified the environmental factors that significantly affect the population distribution through Geodetector analysis and then constructed a population spatial distribution model based on the random forest regression algorithm.Finally,with this model and historical population data that were examined and corrected by historians,gridded population distributions with a spatial resolution of 10 km by 10 km in the traditional cultivated region of China(TCRC,hereafter)were reconstructed for six time slices from 1776 to 1953.Using the reconstruction dataset,the spatiotemporal characteristics of the population distribution were depicted.The results showed that(1)the environmental factors that significantly affected the population density differences among counties in the TCRC mainly consisted of elevation,slope,relief amplitude,distances to the nearest prefectural and provincial capitals,distance to the nearest river and the climatology moisture index.(2)Using the census data of 1934 counties in the TCRC in 2000 and the abovementioned environmental factor data,a random forest regression algorithm-based population spatial distribution model was constructed.Its determination coefficient(R^(2))is 0.81.In 88.4%of the counties(districts),the relative errors of the model predictions were less than 50%.(3)From 1776 to 1953,the total population in the study area showed an uptrend.Prior to 1851,the population increased mainly in the Yangtze River Delta.During this period,the number of grid cells in which the population densities were greater than 500 persons per km^(2) increased from 292 to 683.From 1851 to 1953,the population increased extensively across the study area.In the North China Plain and the Pearl River Delta,the number of grid cells in which the population densities were greater than 500 persons per km^(2) increased from 36 to 88 and from 4 to 35,respectively.The spatial clustering pattern of the population distribution varied temporally.The potential reasons included the shifts in economic development hot spots,traditional beliefs,wars,famine,and immigration policies.(4)Between our reconstructions and the HYDE dataset,there are large differences in the data sources,selected environmental factors and modeling methods.As a consequence,in comparison to our reconstructions,there were fewer populations in the eastern area and more populations in the western area from 1776 to 1851 and more populations in urban areas and fewer populations in rural areas after 1851 in the HYDE dataset. | Xuezhen ZHANG Fahao WANG Weidong LU Shicheng LI Jingyun ZHENG | 2022 | Science China Earth Sciences2022，65，2： | 0 |
| 13 | A Novel Soft-start Method for SVG Based on D-axis Orientation显示文摘In this paper,a novel method for shock-free soft-start is proposed.The novel method can realize the aim of no-overshoot and inrush of current during the entire soft-start process,thus the start process is safe,stable,and reliable.When the uncontrolled rectification stage ends,a sinusoidal signal synchronized with the grid voltage is generated through dq coordinate transformation and D-axis orientation,then the signal is transmitted to the three-phase inverter bridge.The AC voltage output of the inverter bridge is superimposed on both ends of the soft-start resistor along with the grid.The open-loop control method is adopted to gradually reduce the modulation ratio of the sinusoidal PWM wave until the capacitor voltage on the DC side reaches the rated voltage value,then the soft-start resistor is removed,which means the shock-free soft-start process is completed.Experimental results prove the effectiveness and feasibility of the control strategy proposed in this paper. | Shicheng Zheng Ying Shu Mengmeng Qi Jiahong Lang Xuefeng Hu | 2021 | Chinese Journal of Electrical Engineering2021，7，1： | 0 |
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