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| 1 | Mesozoic contraction deformation in the Yanshan and northern Taihang mountains and its implications to the destruction of the North China Craton显示文摘Mesozoic contraction deformation in the Yanshan and Taihang mountains is characterized by basement-involved thrust tectonics,basement-cored buckling anticlines and ductile thrust and nappe tectonics.Most of these deformations are orientated west-east,west-northwest and northeast to north-northeast.The contraction deformations began in the Permian,continued through the Triassic and Jurassic and terminated in the Early Cretaceous,and constitute an important part of the destruction of the North China Craton.It is estimated,from balanced cross-section reconstructions,that the north-south shortening of the central part of the Yanshan belt before 135 Ma was around 38%.The initial crust thickness,pre-dating the major contraction deformation in late Paleozoic and early Mesozoic,was estimated to be around 35 km based on paleogeographic characteristics.Assuming that the inferred depth of ductile thrusting deformation,20-25 km,was the crust thickness involved in the contraction deformation,and also assuming that the N-S contraction deformation was accommodated by vertical crust thickening,the thickness of the crust after the contraction deformation was expected to be around 47-50 km.This was the approximate crust thickness required for the eclogitization of the lower crust for delamination.The gravity potential accumulated by the isostatic uplift of the thickened crust,together with the decrease in crustal strength caused by the coeval magmatisms associated with the contraction deformation,led to the subsequent extensional collapse of the middle and upper crust although the regional stress regime associated with the plate interactions remained constant.It is inferred that the Mesozoic contraction deformations in the Yanshan and Taihang mountains were not only a significant tectonic process contributing to the destruction of the craton in middle and upper crust but also stimulated delamination at a deep level and the extension of the shallow crust.In other words,both the suspected delamination of the lower crust and upper mantle and the well constrained extension deformations of the shallow crust in the eastern North China Craton during the late Mesozoic are a consequence of crust thickening due to previous contractions.Extensional deformations could be expected to occur independently in the shallow crust,and are not necessarily associated with or responding to delamination at a deep level. | ZHANG ChangHou LI ChengMing DENG HongLing LIU Yang LIU Lei WEI Bo LI HanBin LIU Zi | 2011 | Science China Earth Sciences2011,54,6: | 40 |
| 2 | Relationships Between Yield, Quality and Nitrogen Uptake and Utilization of Organically Grown Rice Varieties显示文摘Due to the relatively late start of organic rice(Oryza sativa L.) research in China,there is a still lack of systematic research on rice varieties,organic fertilizer management practices,and especially the mechanisms of nitrogen(N) uptake and utilization.Three rice varieties,Nanjing 5055,Nanjing 9108,and Nanjing 46,were grown under organic farming(OF) at three organic fertilizer levels(103.2,160.8,and 218.4 kg N ha^(-1)) and conventional farming(CF) with regular chemical fertilizers.Rice grain yields,yield components,and quality,dry matter accumulation,and plant N were measured at different growth stages during the 2012 and 2013 growing seasons.Compared with CF,OF had a significantly reduced yield.Nanjing 9108 showed significant reductions in number of panicles per unit area and percentage of filled grains,and had the lowest yield.The effects of fertilizer type and application rate on dry matter accumulation during the main growth periods were significant for all varieties.The N content and uptake in organically grown rice were lower compared with those of rice under CF.The N recovery efficiency and N agronomic efficiency were significantly lower,whereas N physiological efficiency and N partial factor productivity were greater under OF than under CF.Under OF,the processing quality showed a slight but insignificant decline,protein content and gel consistency increased,and amylose content decreased compared with those under CF.Correlation analysis showed that under OF,grain yield was significantly correlated with N uptake.The medium organic fertilizer level(160.8 kg N ha^(-1)) was found to be the optimum fertilizer treatment,and Nanjing 46 appeared to be the best variety for organic rice cultivation.To increase rice grain yields and reduce the potential risk of non-point source pollution in organic agriculture,further research is needed to improve the N use efficiency in organic rice cultivation. | HUANG Lifen YU Jun YANG Jie ZHANG Rong BAI Yanchao SUN Chengming ZHUANG Hengyang | 2016 | Pedosphere2016,26,1: | 11 |
| 3 | Frequency-constrained Co-planning of Generation and Energy Storage with High-penetration Renewable Energy显示文摘Large-scale renewable energy integration decreases the system inertia and restricts frequency regulation. To maintain the frequency stability, allocating adequate frequency-support sources poses a critical challenge to planners. In this context, we propose a frequency-constrained coordination planning model of thermal units, wind farms, and battery energy storage systems (BESSs) to provide satisfactory frequency supports. Firstly, a modified multi-machine system frequency response (MSFR) model that accounts for the dynamic responses from both synchronous generators and grid-connected inverters is constructed with preset power-headroom. Secondly, the rate-of-change-of-frequency (ROCOF) and frequency response power are deduced to construct frequency constraints. A data-driven piecewise linearization (DDPWL) method based on hyperplane fitting and data classification is applied to linearize the highly nonlinear frequency response power. Thirdly, frequency constraints are inserted into our planning model, while the unit commitment based on the coordinated operation of the thermal-hydro-wind-BESS hybrid system is implemented. At last, the proposed model is applied to the IEEE RTS-79 test system. The results demonstrate the effectiveness of our co-planning model to keep the frequency stability. | Chengming Zhang Lu Liu Haozhong Cheng Dundun Liu Jianping Zhang Gang Li | 2021 | Journal of Modern Power Systems and Clean Energy2021,9,4: | 4 |
| 4 | Elastic Scattering of 7Be on Pb Target显示文摘 | Yang Yanyun Wang Jiansong Wang Qi Huang Meirong Ma Junbing Ma Peng Cao Xiguang Han Jianlong Bai Zhen Jin Shilong Hu Qiang Jin Lei Chen Jiangbo Zhang Xueying Chen Ruofu Hu Zhengguo Xu Shiwei Zhen Chuan Xu Zhiguo Xu Hushan Duan Liming Sun Zhiyu Chen Zhiqiang He Jianjun Li Songlin Lei Xiangguo Fu Fen Zhang Xueheng Yuan Xiaohua Du Chengming Yan Xinshuang Hu Jun Tang Shuwen Ye Ruiping Yang Kun Shi Fudong Zhang Wei Chen Ze Li Long Xu Xing Liu Longxiang Zhang Liyong Lin Qingyun Gou Boxing Xu Ge Zhou Xionghong Zhang Yuhu Xiao Guoqing | 2011 | IMP & HIRFL Annual Report2011,,1: | 4 |
| 5 | Age, estimated glomerular filtration rate and ejection fraction score predicts contrast-induced acute kidney injury in patients with diabetes and chronic kidney disease: insight from the TRACK-D study显示文摘 | Li Jing Li Yi Wang Xiaozeng Yang Shuguang Gao Chuanyu Zhang Zheng Yang Chengming Jing Quanming Wang Shouli Ma Yingyan Wang Zulu Liang Yanchun Han Yaling | 2014 | Chinese Medical Journal2014,,12: | 3 |
| 6 | Predicting future dynamics from short-term time series using an Anticipated Learning Machine显示文摘Predicting time series has significant practical applications over different disciplines.Here,we propose an Anticipated Learning Machine(ALM)to achieve precise future-state predictions based on short-term but high-dimensional data.From non-linear dynamical systems theory,we show that ALM can transform recent correlation/spatial information of high-dimensional variables into future dynamical/temporal information of any target variable,thereby overcoming the small-sample problem and achieving multistep-ahead predictions.Since the training samples generated from high-dimensional data also include information of the unknown future values of the target variable,it is called anticipated learning.Extensive experiments on real-world data demonstrate significantly superior performances of ALM over all of the existing 12 methods.In contrast to traditional statistics-based machine learning,ALM is based on non-linear dynamics,thus opening a new way for dynamics-based machine learning. | Chuan Chen Rui Li Lin Shu Zhiyu He Jining Wang Chengming Zhang Huanfei Ma Kazuyuki Aihara Luonan Chen | 2020 | National Science Review2020,7,6: | 3 |
| 7 | Polycrystalline diamond MESFETs by Au-mask technology for RF applications显示文摘Metal-semiconductor field effect transistors (MESFETs) were fabricated on H-terminated polycrystalline diamond.The DC characteristics of the p-channel MESFET showed a maximum drain current density of 204 mA/mm at a gate-source voltage of 6 V,and a maximum transconductance of 20 mS/mm at a gate-source voltage of 1.5 V.The small signal S-parameters of MESFET with 2 100 m gate width and 2 m gate length were measured.An extrinsic cut-off frequency (fT) of 1.7 GHz and the maximum oscillation frequency (fmax) of 2.5 GHz were obtained,which was the first report on diamond MESFETs with RF characteristics in China. | FENG ZhiHong WANG JingJing HE ZeZhao DUN ShaoBo YU Cui LIU JinLong ZHANG PingWei GUO Hui LI ChengMing CAI ShuJun | 2013 | Science China(Technological Sciences)2013,56,4: | 2 |
| 8 | Simultaneous Determination of Four Heavy Metal Ions in Tobacco and Tobacco Additive by Online Enrichment Followed by RP-HPLC and Microwave Digestion显示文摘 | Yang Guangyu Zhang Chengming Hu Qiufen | 2003 | Journal of Chromatographic Science2003,41,4: | 2 |
| 9 | A guidance method for coplanar orbital interception based on reinforcement learning显示文摘This paper investigates the guidance method based on reinforcement learning(RL)for the coplanar orbital interception in a continuous low-thrust scenario.The problem is formulated into a Markov decision process(MDP)model,then a welldesigned RL algorithm,experience based deep deterministic policy gradient(EBDDPG),is proposed to solve it.By taking the advantage of prior information generated through the optimal control model,the proposed algorithm not only resolves the convergence problem of the common RL algorithm,but also successfully trains an efficient deep neural network(DNN)controller for the chaser spacecraft to generate the control sequence.Numerical simulation results show that the proposed algorithm is feasible and the trained DNN controller significantly improves the efficiency over traditional optimization methods by roughly two orders of magnitude. | ZENG Xin ZHU Yanwei YANG Leping ZHANG Chengming | 2021 | Journal of Systems Engineering and Electronics2021,32,4: | 2 |
| 10 | Comparative transcriptome analysis during early fruit development between three seedy citrus genotypes and their seedless mutants显示文摘Identification of genes with differential transcript abundance(GDTA)in seedless mutants may enhance understanding of seedless citrus development.Transcriptome analysis was conducted at three time points during early fruit development(Phase 1)of three seedy citrus genotypes:Fallglo(Bower citrus hybrid(Citrus reticulata×C.reticulata×C.paradisi)×Temple(C.reticulata×C.sinensis)),grapefruit(C.paradisi),Pineapple sweet orange(C.sinensis),and their seedless mutants.Seed abortion in seedless mutants was observed at 26 days post anthesis(Time point 2).Affymetrix transcriptomic analysis revealed 359 to 1077 probe sets with differential transcript abundance in the comparison of seedless versus seedy fruits for each citrus genotypes and time points.The GDTA identified by 18 microarray probe sets were validated by qPCR.Hierarchical clustering analysis revealed a range of GDTA associated with development,hormone and protein metabolism,all of which may reflect genes associated with seedless fruit development.There were 14,9 and 12 genes found exhibiting similar abundance ratios in all three seedless versus seedy genotype comparisons at time point 1,2 and 3,respectively.Among those genes were genes coding for an aspartic protease and a cysteine protease,which may play important roles in seedless fruit development.New insights into seedless citrus fruit development may contribute to biotech approaches to create seedless cultivars. | Shujian Zhang Qingchun Shi Ute Albrecht Robert G Shatters Jr Ric Stange Greg McCollum Shuo Zhang Chengming Fan Ed Stover | 2017 | Horticulture Research2017,4,1: | 2 |
| 11 | Handheld optical coherence tomography device for photodynamic therapy显示文摘Photodynamic therapy (PDT) is a very effective treatment for port wine stains (PWS). To guide and assess PDT treatment, a handheld optical coherence tomography (OCT) probe was designed for real-time imaging of the PWS patient. The system uses a light source with a center wavelength of 1310 nm, -3 dB bandwidth of 90 nm and an optical power of 9 mW. The system also has a spatial resolution of 8 μm (lateral) × 7 μm (axial), an imaging rate of 4 frames per second, and a 102 dB sensitivity. We then demonstrate that the OCT imaging system can clearly distinguish between normal and PWS tissues. Therefore, the system can provide valuable guidance for PDT treatment. | WANG TianShi WANG ChengMing HUANG NaiYan ZHANG Jian GU Ying XUE Ping | 2012 | Chinese Science Bulletin2012,57,5: | 2 |
| 12 | Chemical vapor deposited diamond with versatile grades:from gemstone to quantum electronics显示文摘Chemical vapor deposited(CVD)diamond as a burgeoning multifunctional material with tailored quality and characteristics can be artificially synthesized and controlled for various applications.Correspondingly,the application-related“grade”concept associated with materials choice and design was gradually formulated,of which the availability and the performance are optimally suited.In this review,the explicit diversity of CVD diamond and the clarification of typical grades for applications,i.e.,from resplendent gem-grade to promising quantum-grade,were systematically summarized and discussed,according to the crystal quality and main consideration of ubiquitous nitrogen impurity content as well as major applications.Realizations of those,from quantum-grade with near-ideal crystal to electronic-grade having extremely low imperfections and then to optical,thermal as well as mechanical-grade needing controlled flaws and allowable impurities,would competently fulfill the multi-field application prospects with appropriate choice in terms of cost and quality.Exceptionally,wide range defects and impurities in the gem-grade diamond(only indicating single crystal),which are detrimental for technology applications,endows CVD crystals with fancy colors to challenge their natural counterparts. | Yuting ZHENG Chengming LI Jinlong LIU Junjun WEI Xiaotong ZHANG Haitao YE Xiaoping OUYANG | 2022 | Frontiers of Materials Science2022,16,1: | 1 |
| 13 | Research on assessment method of testability for integrated information service platform 显示文摘 | Zhang Chengming Zhang Jixian Liang Yong | 2010 | Sensor Letters2010,8,1: | 1 |
| 14 | Phosphate-induced interfacial electronic engineering in VPO_(4)-Ni_(2)P heterostructure for improved electrochemical water oxidation显示文摘Anodic oxygen evolution reaction(OER)is the key bottleneck for water electrolysis technique owing to its sluggish reaction kinetics.Interfacial engineering on the rationally designed heterostructure can regulate the electronic states efficiently for intrinsic activity improvement.Here,we report a co-phosphorization approach to construct a VPO_(4)-Ni_(2)P heterostructure on nickel foam with strongly chemical binding,wherein phosphate acts as electronic modifier for Ni_(2)P electrocatalyst.Profiting from the interfacial interaction,it is uncovered that electron shifts from Ni_(2)P to VPO_(4)to render valence increment in Ni species.Such an electronic manipulation rationalizes the chemical affinities of various oxygen intermediates in OER pathway,giving a substantially reduced energy barrier.As a result,the advanced VPO_(4)-Ni_(2)P heterostructure only requires an overpotential of 289 mV to deliver a high current density of 350 mA/cm^(2)for OER in alkaline electrolyte,together with a Tafel slope as low as 28 mV/dec.This work brings fresh insights into interfacial engineering for advanced electrocatalyst design. | Kun Chen Keke Mao Yu Bai Delong Duan Shuangming Chen Chengming Wang Ning Zhang Ran Long Xiaojun Wu Li Song Yujie Xiong | 2022 | Chinese Chemical Letters2022,33,1: | 1 |
| 15 | Advanced glycation end products impair the migration,adhesion and secretion potentials of late endothelial progenitorcells显示文摘 | Li H Zhang X Guan X Cui X Wang Y Chu H ChengM | 2012 | Cardiovasc Diabetol2012,11,: | 1 |
| 16 | Landscape dynamic network biomarker analysis reveals the tipping point of transcriptome reprogramming to prevent skin photodamage显示文摘Skin,as the outmost layer of human body,is frequently exposed to environmental stressors including pollutants and ultraviolet(UV),which could lead to skin disorders.Generally,skin response process to ultraviolet B(UVB)irradiation is a nonlinear dynamic process,with unknown underlying molecular mechanism of critical transition.Here,the landscape dynamic network biomarker(lDNB)analysis of time series transcriptome data on 3D skin model was conducted to reveal the complicated process of skin response to UV irradiation at both molecular and network levels.The advanced l-DNB analysis approach showed that:(i)there was a tipping point before critical transition state during pigmentation process,validated by 3D skin model;(ii)13 core DNB genes were identified to detect the tipping point as a network biomarker,supported by computational assessment;(iii)core DNB genes such as COL7A1 and CTNNB1 can effectively predict skin lightening,validated by independent human skin data.Overall,this study provides new insights for skin response to repetitive UVB irradiation,including dynamic pathway pattern,biphasic response,and DNBs for skin lightening change,and enables us to further understand the skin resilience process after external stress. | Chengming Zhang Hong Zhang Jing Ge Tingyan Mi Xiao Cui Fengjuan Tu Xuelan Gu Tao Zeng Luonan Chen | 2021 | Journal of Molecular Cell Biology2021,13,11: | 1 |
| 17 | 3D placement of unmanned aerial vehicles and partially overlapped channel assignment for throughput maximization显示文摘This paper investigates a wireless system with multi-Unmanned Aerial Vehicles(UAVs)for improving the overall throughput.In contrast to previous studies that optimize the locations of UAVs and channel assignment separately,this paper considers the two issues jointly by exploiting Partially Overlapped Channels(POCs).The optimization problem of maximizing network throughput is formulated as a non-convex and non-linear problem.In order to find a practical solution,the problem is decomposed into two subproblems,which are iteratively optimized.First,the optimal locations of UAVs are determined under a fixed channel assignment scheme by solving the mixed-integer second-order cone problem.Second,an efficient POC allocation scheme is determined via the proposed channel assignment algorithm.Simulation results show that the proposed approach not only significantly improves system throughput and service reliability compared with the cases in which only orthogonal channels and stationary UAVs are considered,but also achieves similar performance using the exhaustive search algorithm with lower time complexity. | Chengming Zou Xiaoxiao Li Xing Liu Mengya Zhang | 2021 | Digital Communications and Networks2021,7,2: | 1 |
| 18 | Analysis and Optimization of Thrust Characteristics of Tubular Linear Electromagnetic Launcher for Space-Use 显示文摘 | Kou Baoquan Li liyi Zhang Chengming | 2009 | IEEE Transactions on magnetics2009,45,1: | 1 |
| 19 | Simultaneous determination of four heavy metal ions in tobacco and tobacco additive by online enrichment followed by RP-HPLC and microwave digestion显示文摘 | Guangyu Yang Chengming Zhang Qiufen Hu | 2003 | Journal of Chromatographic Science2003,41,4: | 1 |
| 20 | Immobilization of human red cells in gel particles for chromatographic activity studies of the glucose transporter Glutl 显示文摘 | ChengMing Zeng YanXiao Zhang LiLi Lu | 1997 | Biochimica et Biophysica Acta1997,1325,1: | 1 |