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| 1 | Relation of hepatic EROD activity and cytochrome P4501A level in Sebastiscus marmoratus exposed to benzo[a]pyrene显示文摘这研究被设计调查 benzo 的体内效果[一]有细胞色素 P4501A ( CYP1A )蛋白质的活动和它的关联在 Sebastiscus marmoratus 铺平的肝的 ethoxyresorufin-O-deethylase (侵蚀)上的分核( BaP )通过水列暴露于 BaP , 10 , 100 , 1000 ng/L ,分别地)或与 BaP 的 intraperitoneal 注射被对待( 0.5 , 1 , 5 , 10 mg/kg ,分别地)每 7 d 。结果证明在到 1000 ng/L BaP 的水运的暴露的 25 d 以后,捞肝的 CYP1A 层次和侵蚀活动显著地被导致。相反,侵蚀活动没被改变在第二 intraperitoneal 注射以后的 7 d,而, CYP1A 蛋白质层次被增加。胆汁的 BaP 代谢物的剂量依赖者增加证明 CYP1A 的催化活动被处理与 BaP 导致。关于胆汁的 BaP 代谢物(100 ng/L ) 的最低可见效果集中与侵蚀活动(1000 ng/L ) 的参考是比那低得多的。结果建议那胆汁的多不的芳族烃(哼) 代谢物被显示更好反映污染坡度比侵蚀哼活动。它看起来必要测量 CYP1A 蛋白质层次在相关毒物学的评价补充 EROD 活动。 | WANG Yun ZHENG Ronghui ZUO Zhenghong CHEN Yixin WANG Chonggang | 2008 | Journal of Environmental Sciences2008，20，1： | 10 |
| 2 | Control method for multi-input multi-output non-Gaussian random vibration test with cross spectra consideration显示文摘A control method for Multi-Input Multi-Output(MIMO) non-Gaussian random vibration test with cross spectra consideration is proposed in the paper. The aim of the proposed control method is to replicate the specified references composed of auto spectral densities, cross spectral densities and kurtoses on the test article in the laboratory. It is found that the cross spectral densities will bring intractable coupling problems and induce difficulty for the control of the multioutput kurtoses. Hence, a sequential phase modification method is put forward to solve the coupling problems in multi-input multi-output non-Gaussian random vibration test. To achieve the specified responses, an improved zero memory nonlinear transformation is utilized first to modify the Fourier phases of the signals with sequential phase modification method to obtain one frame reference response signals which satisfy the reference spectra and reference kurtoses. Then, an inverse system method is used in frequency domain to obtain the continuous stationary drive signals. At the same time, the matrix power control algorithm is utilized to control the spectra and kurtoses of the response signals further. At the end of the paper, a simulation example with a cantilever beam and a vibration shaker test are implemented and the results support the proposed method very well. | Ronghui ZHENG Huaihai CHEN Xudong HE | 2017 | Chinese Journal of Aeronautics2017，30，6： | 9 |
| 3 | Operational modal parameter identification with colored noise excitation显示文摘Operational Modal Analysis(OMA) refers to the modal analysis of a structure in its operating state. The advantage of OMA is that only the output vibration signal of a system is used in the analysis process. Classic OMA is based on the white noise excitation assumption and many identification methods have been developed in both time domain and frequency domain. But in reality, many environmental excitations are not compliance with the white noise assumption. In this paper, a method of half power bandwidth analysis is applied to power spectrum analysis to deal with the colored noise and trapezoidal spectral excitation. The modal frequencies and modal damping ratios are derived and the error caused by trapezoidal spectral and colored noise excitation are analyzed. It is proved that the OMA algorithm based on the white noise assumption can be extended to the colored noise environments under certain conditions. Finally, a simulation example with a cantilever beam and a vibration test with four kinds of colored noise and trapezoidal spectrum base excitation are carried out and the results support the proposed method. | Xiangyu LU Xudong HE Huaihai CHEN Ronghui ZHENG | 2021 | Chinese Journal of Aeronautics2021，34，2： | 2 |
| 4 | Carbon interstitial defects causing emission red shift in YAG:Ce phosphor:First-principles calculation显示文摘Y_3 Al_5 O_(12):Ce3+ is the most famous phosphor material due to its excellent photolumincent properties.Here,through first-principles calculation,the effect of carbon interstitial defects on Y_3 Al_5 O_(12):Ce3+phosphor was investigated. It is found that the carbon interstitials tend to occupy the next-nearest sites of Ce^(3+) ion in Y_3 Al_5 O_(12):Ce3+ lattice. Specially,these interstitial defects can shorten the Ce3+-O^(2-) bond length, leading to a larger crystal field splitting of 5 d orbital of the Ce^(3+) atom and bigger 5 d centroid shift.These two factors cause the emission spectrum of Y_3 Al_5 O_(12)(C):Ce^(3+) red shift compared with that of Y_3 Al_5 O_(12):Ce3+. Moreover, with our comparison experiment, we find that the Y_3 Al_5 O_(12)(C):Ce3+ has an obvious red shift compared with that of Y_3 Al_5 O_(12):Ce^(3+) system,which is in accord with our first principles calculation. Our work systematically investigates the impact of the carbon interstitial defect on Y_3 Al_5 O_(12):Ce^(3+),and provides a new route to tune the emission spectrum in Y_3 Al_5 O_(12):Ce^(3+). | Yaling Zheng Weidong Zhuang Xianran Xing Ronghui Liu Yanfeng Li Yuanhong Liu Yunsheng Hu Xiaoxia Chen Lei Chen Xiaole Ma | 2018 | Journal of Rare Earths2018，36，12： | 1 |
| 5 | Stationary non-Gaussian random vibration control:A review显示文摘This paper presents a review of the various methods for the stationary non-Gaussian random vibration control.Random vibration tests can be divided,according to the number of exciters,in single-shaker tests and multiple-shaker tests.In the stationary non-Gaussian random vibration test,the time and frequency domain characteristics of the responses should be controlled independently and simultaneously.Skewness and kurtosis are usually selected as the nonGaussian time control references(targets)while power spectral density is the frequency domain control procedure before it recalls the concepts of non-Gaussianity.Then,the generation of a one frame stationary non-Gaussian random signal for both the single and multiple shakers are reviewed.The commonly used methods for the single non-Gaussian random signal generation in the random vibration test are memoryless nonlinear transformation,phase modification and Filtered Poisson process.For the multiple-shaker case,the sequential phase modification and memoryless nonlinear transformation are used to generate one frame coupled multi-channel non-Gaussian random signal.In order to obtain a stationary and consecutive dynamic input,the time domain randomization procedure is introduced with high computational efficiency and its influences on the skewness and kurtosis are analyzed.Finally,two existing problems in the non-Gaussian random vibration control are addressed. | Ronghui ZHENG Guoping CHEN Huaihai CHEN | 2021 | Chinese Journal of Aeronautics2021，34，1： | 1 |
| 6 | Distributed Robust Optimal Dispatch for the Microgrid Considering Output Correlation between Wind and Photovoltaic显示文摘As an effective carrier of integrated clean energy,the microgrid has attracted wide attention.The randomness of renewable energies such as wind and solar power output brings a significant cost and impact on the economics and reliability of microgrids.This paper proposes an optimization scheme based on the distributionally robust optimization(DRO)model for a microgrid considering solar-wind correlation.Firstly,scenarios of wind and solar power output scenarios are generated based on non-parametric kernel density estimation and the Frank-Copula function;then the generated scenario results are reduced by K-means clustering;finally,the probability confidence interval of scenario distribution is constrained by 1-norm and∞-norm.The model is solved by a column-and-constraint generation algorithm.Experimental studies are conducted on a microgrid system in Jiangsu,China and the obtained scheduling solution turned out to be superior under wind and solar power uncertainties,which verifies the effectiveness of the proposed DRO model. | Ming Li Cairen Furifu Chengyang Ge Yunping Zheng Shunfu Lin Ronghui Liu | 2023 | Energy Engineering2023，120，8： | 0 |
| 7 | Applying a fish expert system for ranking the biological effects of polycyclic aromatic hydrocarbons on the rockfish Sebastiscus marmoratus in the Maowei Sea,China显示文摘Polycyclic aromatic hydrocarbons(PAHs)pollution,particularly in coastal environments,is a global concern.In this study,the biomonitoring and ranking effects of PAHs in the rockfish Sebastiscus marmoratus were determined in the Maowei Sea,China.The results showed that the concentrations of the 16 priority PAHs detected in the surface seawater were moderate compared with those in other coastal areas worldwide,and the possible sources were rapid industrialization and urbanization combined with atmospheric deposition and runoff.Nested analysis of variance(ANOVA)suggested significant differences in the hepatic ethoxyresorufin-O-deethylase(EROD)activities and phenanthrene-derived metabolites in bile between the port area and the oyster farming area.The fish expert system(FES)was applied to evaluate the biological effects of PAHs on fish.The FES data demonstrated that the biological effect levels of Site S1(level III,medium stress)were higher than those of the other sampling sites(level II,low stress). | Ronghui Zheng Chao Fang Fukun Hong Weiming Kuang Yulu Jiang Jincan Chen Yusheng Zhang Jun Bo | 2022 | Acta Oceanologica Sinica2022，41，12： | 0 |
| 8 | Two-Stage Optimal Scheduling of Community Integrated Energy System显示文摘From the perspective of a community energy operator,a two-stage optimal scheduling model of a community integrated energy system is proposed by integrating information on controllable loads.The day-ahead scheduling analyzes whether various controllable loads participate in the optimization and investigates the impact of their responses on the operating economy of the community integrated energy system(IES)before and after;the intra-day scheduling proposes a two-stage rolling optimization model based on the day-ahead scheduling scheme,taking into account the fluctuation of wind turbine output and load within a short period of time and according to the different response rates of heat and cooling power,and solves the adjusted output of each controllable device.The simulation results show that the optimal scheduling of controllable loads effectively reduces the comprehensive operating costs of community IES;the two-stage optimal scheduling model can meet the energy demand of customers while effectively and timely suppressing the random fluctuations on both sides of the source and load during the intra-day stage,realizing the economic and smooth operation of IES. | Ming Li Rifucairen Fu Tuerhong Yaxiaer Yunping Zheng Abiao Huang Ronghui Liu Shunfu Lin | 2024 | Energy Engineering2024，121，2： | 0 |
| 9 | Synthesis and characterization of biodegradable thermoplastic elastomers derived from N.N-bis (2-carboxyethyl)-pyromellitimide, poly(butylene succinate) and polyethylene glycol显示文摘 | Jiaojiao Shang Guo Yao Ronghui Guo Wei Zheng Long Gu Jianwu Lan | 2018 | Frontiers of Chemical Science and Engineering2018，12，3： | 0 |
| 10 | Mitigating growth-stress tradeoffs via elevated TOR signaling in rice显示文摘Rice production accounts for approximately half of the freshwater resources utilized in agriculture,result-ing in greenhouse gas emissions such as methane(CH4)from flooded paddy fields.To address this chal-lenge,environmentally friendly and cost-effective water-saving techniques have become widely adopted in rice cultivation.However,the implementation of water-saving treatments(WsTs)in paddy-field rice has been associated with a substantial yield loss of up to 50%as well as a reduction in nitrogen use efficiency(NUE).In this study,we discovered that the target of rapamycin(TOR)signaling pathway is compromised in rice under WsT.Polysome profiling-coupled transcriptome sequencing(polysome-seq)analysis unveiled a substantial reduction in global translation in response to WST associated with the downregulation of TOR activity.Molecular,biochemical,and genetic analyses revealed new insights into the impact of the positive TOR-S6K-RPS6 and negative TOR-MAF1 modules on translation repression under WST.Intriguingly,ammonium exhibited a greater ability to alleviate growth constraints under WsT by enhancing TOR signaling,which simultaneously promoted uptake and utilization of ammonium and nitrogen allocation.We further demonstrated that TOR modulates the ammonium transporter AMT1;1 as well as the amino acid permease APP1 and dipeptide transporter NPF7.3 at the translational level through the 5'untranslated region.Collectively,these findings reveal that enhancing TOR signaling could mitigate rice yield penalty due to WST by regulating the processes involved in protein synthesis and NUE.Our study will contribute to the breeding of new rice varieties with increased water and fertilizer utilization efficiency. | Wei Li Jiaqi Liu Zeqi Li Ruiqiang Ye Wenzhen Chen Yuqing Huang Yue Yuan Yi Zhang Huayi Hu Peng Zheng Zhongming Fang Zeng Tao Shiyong Song Ronghui Pan Jian Zhang Jumim Tu Jen Sheen Hao Du | 2024 | Molecular Plant2024，17，2： | 0 |
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