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| 1 | Self-powered versatile shoes based on hybrid nanogenerators显示文摘摩擦电 nanogenerator (TENG ) 和一个电磁的发电机(EMG ) 是 hybridized 收获人的机械精力。由 triboelectrification 和电磁的正式就职的一个有效连词,有 1.2 厘米的 2 厘米和高度的半径的 hybridized nanogenerator 能在颤动的 100 个周期以后控告 1,000 F 电容器到 5.09 V。这微型大小的混合 nanogenerator 然后能在鞋被嵌入用作一个精力房间。典型室外的 applicationsincluding 与一台全球放系统(GPS ) 设备开车,为一节 Li 离子电池和成功地表明的房间 phonewere 充电,建议它在聪明的便携电子学和士兵的未来西装的潜在的应用程序。 | Long Liu Wei Tang Chaoran Deng Baodong Chen Kai Han Wei Zhong Zhong Lin Wang | 2018 | Nano Research2018，11，8： | 6 |
| 2 | Low soil temperature reducing the yield of drip irrigated rice in arid area by influencing anther development and pollination显示文摘Drip irrigation can produce high rice yields with significant water savings;therefore,it is widely used in arid area water-scarce northern China.However,high-frequency irrigation of drip irrigation with low temperature well water leads to low root zone temperature and significantly reduce the rice yield compared to normal temperature water irrigated rice,for example,reservoir water.The main purpose of this paper is to investigate the effects of low soil temperature on the yield reduction of drip irrigated rice in the spike differentiation stage.The experiment set the soil temperatures at 18℃,24℃and 30℃under two irrigation methods(flood and drip irrigation),respectively.The results showed that,at the 30℃soil temperature,drip irrigation increased total root length by 53%but reduced root water conductivity by 9%compared with flood irrigation.Drip irrigation also increased leaf abscisic acid and proline concentrations by 13%and 5%,respectively.These results indicated that drip irrigated rice was under mild water stress.In the 18℃soil temperature,drip irrigation reduced hydraulic conductivity by 58%,leaf water potential by 40%and leaf net photosynthesis by 25%compared with flood irrigation.The starch concentration in male gametes was also 30%less in the drip irrigation treatment than in the flood irrigation treatment at soil temperature 18℃.Therefore,the main reason for the yield reduction of drip irrigated rice was that the low temperature aggravates the physiological drought of rice and leads to the decrease of starch content in male gametes and low pollination fertilization rate.Low temperature aggravates physiological water deficit in drip irrigated rice and leads to lower starch content in male gametes and low pollination fertilization rate,which is the main reason for the reduced yield of drip irrigated rice.Overall,the results indicated that the low soil temperatures aggravated the water stress that rice was under in the drip irrigated environment,causing declines both in the starch content of male gametes and in pollination rate.Low temperature will ultimately affect the rice yield under drip irrigation. | ZHANG Jun DONG Peng ZHANG Haoyu MENG Chaoran ZHANG Xinjiang HOU Jianwei WEI Changzhou | 2019 | Journal of Arid Land2019，11，3： | 3 |
| 3 | Red phosphor SrWO 4 :Eu 3+ for potential application in white LED显示文摘 | Zhenghua Ju Ruiping Wei Xiuping Gao Weisheng Liu Chaoran Pang | 2011 | Optical Materials2011，，6： | 2 |
| 4 | Two pathogenesis-related proteins interact with leucine-rich repeat proteins to promote Alternaria leaf spot resistance in apple显示文摘Alternaria leaf spot in apple(Malus x domestica),caused by the fungal pathogen Alternaria alternata f.sp.mali(also called A.mali),is a devastating disease resulting in substantial economic losses.We previously established that the resistance(R)protein MdRNL2,containing a coiled-coil,nucleotide-binding,and leucine-rich repeat(CC R-NB-LRR)domain,interacts with another CC R-NB-LRR protein,MdRNL6,to form a MdRNL2–MdRNL6 complex that confers resistance to A.mali.Here,to investigate the function of the MdRNL2–MdRNL6 complex,we identified two novel pathogenesis-related(PR)proteins,MdPR10-1 and MdPR10-2,that interact with MdRNL2.Yeast two-hybrid(Y2H)assays and bimolecular fluorescence complementation(BiFC)assays confirmed that MdPR10-1 and MdPR10-2 interact with MdRNL2 and MdRNL6 at the leucine-rich repeat domain.Transient expression assays demonstrated that accumulation of MdPR10-1 and MdPR10-2 enhanced the resistance of apple to four strains of A.mali that we tested:ALT1,GBYB2,BXSB5,and BXSB7.In vitro antifungal activity assays demonstrated that both the proteins contribute to Alternaria leaf spot resistance by inhibiting fungal growth.Our data provide evidence for a novel regulatory mechanism in which MdRNL2 and MdRNL6 interact with MdPR10-1 and MdPR10-2 to inhibit fungal growth,thereby contributing to Alternaria leaf spot resistance in apple.The identification of these two novel PR proteins will facilitate breeding for fungal disease resistance in apple. | Qiulei Zhang Chaoran Xu Haiyang Wei Wenqi Fan Tianzhong Li | 2021 | Horticulture Research2021，8，1： | 2 |
| 5 | Representing surface wind stress response to mesoscale SST perturbations in western coast of South America using Tikhonov regularization method显示文摘Interaction between mesoscale perturbations of sea surface temperature(SSTmeso)and wind stress(WSmeso)has great influences on the ocean upwelling system and turbulent mixing in the atmospheric boundary layer.Using daily Quik-SCAT wind speed data and AMSR-E SST data,SSTmeso and WSmeso fields in the western coast of South America are extracted by using a locally weighted regression method(LOESS).The spatial patterns of SSTmeso and WSmeso indicate strong mesoscale SST-wind stress coupling in the region.The coupling coefficient between SSTmeso and WSmeso is about 0.0095 N/(m^2·℃)in winter and 0.0082 N/(m^2·℃)in summer.Based on mesoscale coupling relationships,the mesoscale perturbations of wind stress divergence(Div(WSmeso))and curl(Curl(WSmeso))can be obtained from the SST gradient perturbations,which can be further used to derive wind stress vector perturbations using the Tikhonov regularization method.The computational examples are presented in the western coast of South America and the patterns of the reconstructed WS meso are highly consistent with SSTmeso,but the amplitude can be underestimated significantly.By matching the spatially averaged maximum standard deviations of reconstructed WSmeso magnitude and observations,a reasonable magnitude of WSmeso can be obtained when a rescaling factor of 2.2 is used.As current ocean models forced by prescribed wind cannot adequately capture the mesoscale wind stress response,the empirical wind stress perturbation model developed in this study can be used to take into account the feedback effects of the mesoscale wind stress-SST coupling in ocean modeling.Further applications are discussed for taking into account the feedback effects of the mesoscale coupling in largescale climate models and the uncoupled ocean models. | CUI Chaoran ZHANG Rong-Hua WANG Hongna WEI Yanzhou | 2020 | Journal of Oceanology and Limnology2020，38，3： | 2 |
| 6 | The effects of straw‑returning and inorganic K fertilizer on the carbon–nitrogen balance and reproductive growth of cotton显示文摘Background:Many studies have indicated that straw-returning could meet part or even all of the potassium(K)demand for crop growth in the field,but few have compared the effects of crop straw as K source and inorganic K fertilizer on carbon–nitrogen(C–N)balance of cotton and the reproductive growth.To address this,field experiments were conducted using the cotton cultivar,Siza 3,under there treatments(CK as control group one,no crop straw and inorganic K fertilizer were applied;K150 as control group two,150 kg·ha^(-1) of K2O was applied;and W9000,9000 kg·ha^(-1) wheat straw,which could provide K2O about 150 kg·ha^(-1),was incorporated into soil).Results:Although the final reproductive organ biomass did not differ between W9000 and K150,W9000 had a higher ratio of reproductive organ biomass to total biomass(RRT),suggesting that straw-returning was more conducive to the allocation of biomass to reproductive organs.The theoretical maximum biomass of reproductive organ was higher,but the average and maximum accumulation rates of reproductive organ biomass were 2.8%∼8.3%and 2.5%∼8.2%lower under W9000 than K150.Also,the duration of rapid-accumulation period for reproductive organ biomass(T)was 2.0∼2.8 d longer under W9000 than K150,which was a reason for the higher RRT under W9000.Straw-returning altered the dynamics of leaf K with the growth period,so that W9000 had a more drastic effect on leaf C metabolism than K150.Consequently,lower soluble sugar/free amino acid and C/N ratios were measured under W9000 than K150 at boll-setting(BSS)and boll-opening(BOS)stages.Higher leaf net photosynthetic rate,sucrose phosphate synthase and sucrose synthase activities,and lower acid invertase activity were observed under W9000 than K150 at BSS and BOS and these were more conducive to sucrose accumulation.However,less sucrose was measured under W9000 than K150 at these stages.This should be because straw-returning promoted the assimilate transport capacity when compared with inorganic K fertilizer application,which also explained the higher RRT under W9000 than K150.The lower acid invertase activity under W9000 inhibited the conversion of sucrose to other sugars,hence lower contents of soluble sugar and starch were measured under W9000 than K150.Conclusion:Under low K condition,crop straw as K source can increase the assimilate transport from source to sink,leading to lower C/N ratio in leaf and higher allocation of biomass to reproductive organs than inorganic K fertilizer. | HU Wei YU Chaoran ZHAO Wenqing LIU Ruixian YANG Changqinand ZHOU Zhiguo | 2021 | Journal of Cotton Research2021，4，4： | 2 |
| 7 | Development and Analysis of a Closed-Chain Wheel-Leg Mobile Platform显示文摘Current research concerning legged platforms and wheeled platforms primarily focuses on terrain adaptive capability and speed capability,respectively.Compared with wheeled platforms,legged platforms with a closed-chain mechanism still present deficiencies regarding speed ability.To integrate the advantages of these two types of platforms,a wheel-leg mobile platform with two modes based on a closed-chain mechanism is proposed.First,a closed-chain mechanism that generates a high-knee trajectory in legged mode is designed and analyzed based on kinematic analysis.To improve the platform’s obstacle-surmounting performance,the dimensional parameters of the closedchain mechanism are optimized and the design requirements for the platform’s frame are analyzed.In addition,the particular structure of the leg group is designed to realize transformation between legged mode and wheeled mode.The mobility of the constructed platform is calculated through an obstacle-surmounting probability analysis.The performances of the two motion modes are analyzed and compared by conducting dynamic simulations.Finally,experiments are carried out to verify both the theoretical analyses and the prototype performance.This study proposes a new approach to designing wheel-leg platforms with prominent speed ability and mobility based on a closed-chain mechanism. | Chaoran Wei Yanan Yao Jianxu Wu Ran Liu | 2020 | Chinese Journal of Mechanical Engineering2020，33，5： | 2 |
| 8 | Study of frequency domain full waveform inversion based on Huber norm and L-BFGS algorithm显示文摘Full waveform inversion( FWI) is a high resolution inversion method,which can reveal detailed information of the structure and lithology under complex geological background. It is limited by many kinds of noises when the method applied to the real seismic data. Based on Huber function criterion,the objective function combinates the anti-noise of L1 norm and the stability of L2 norm in theory,the authors derive the gradient formula of the Huber function by using L-BFGS algorithm for FWI. The new method is proved by synthetic seismic data with the Gaussian noise and the impulse noise. Numerical test results show that L-BFGS algorithm is applied to the frequency domain FWI with the convergence speed and high calculation accuracy,and can effectively reduce computer memory usage; and the Huber function is more robust and stable than L2 norm even with the noises. | WEI Yajie HAN Liguo DUAN Chaoran WANG Hongye GUO Kun | 2014 | Global Geology2014，17，4： | 0 |
| 9 | Mesoscale wind stress-SST coupling induced feedback to the ocean in the western coast of South America显示文摘The feedback induced by mesoscale wind stress-SST coupling to the ocean in the western coast of South America was studied using the Regional Ocean Modeling System(ROMS).To represent the feedback,an empirical mesoscale wind stress perturbation model was constructed from satellite observations,and was incorporated into the ocean model.Comparing two experiments with and without the mesoscale wind stress-SST coupling,it was found that SST in the mesoscale coupling experiment was reduced in the western coast of South America,with the maximum values of 0.5℃in the Peru Sea and 0.7℃in the Chile Sea.A mixed layer heat budget analysis indicates that horizontal advection is the main term that explains the reduction in SST.Specifically,the feedback induced by mesoscale wind stress-SST coupling to the ocean can enhance vertical velocity in the nearshore area through the Ekman pumping,which brings subsurface cold water to the sea surface.These results indicate that the feedback due to the mesoscale wind stress-SST coupling to the ocean has the potential for reducing the warm SST bias often seen in the large-scale climate model simulations in this region. | Chaoran CUI Rong-Hua ZHANG Yanzhou WEI Hongna WANG | 2021 | Journal of Oceanology and Limnology2021，39，3： | 0 |
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