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| 1 | Explicit diagnosis of the local ozone production rate and the ozone-NOx-VOC sensitivities显示文摘In the troposphere, ozone is a harmful gas compound to both human health and vegetation. Ozone is produced from the reaction of NO_x(@NO + NO_2) and VOCs(volatile organic compounds) with light. Due to the highly nonlinear relationships between ozone and its precursors, proper ozone mitigation relies on the knowledge of chemical mechanisms. In this study, an observation-based method is used to simulate ozone formation and elucidate its controlling factors for a rural site on the North China Plain. The instantaneous ozone production rate is calculated utilizing a box model using the dataset obtained from the Wangdu campaign. First, the model was operated in a time-dependent mode to calculate the ozone production rate at each time stamp. The calculated ozone formation rate showed a diurnal average maximum value of 17 ppbv/h(1-h diurnal averaged). The contribution of individual peroxy radicals to ozone production was analyzed. In addition, the functional dependence of calculated P(O_3) reveals that ozone production was in a NO_x-limited regime during the campaign. Furthermore, the missing peroxy radical source will further extend NO_x-limited conditions to earlier in the day, making NO_xlimitation dominate more of a day than the current chemical model predicts. Finally, a multiple scenarios mode,also known as EKMA(empirical kinetic modeling approach), was used to simulate the response of P(O_3) to the imaginary change in precursor concentrations. We found that ozone production was in the NO_x-limited region. However, the use of NO_2 measured by the molybdenum converter and/or the absence of a peroxy radical source in the current chemical model could over-emphasize the VOC-limited effect on ozone production. | Zhaofeng Tan Keding Lu Huabin Dong Min Hu Xin Li Yuhan Liu Sihua Lu Min Shao Rong Su Haichao Wang Yusheng Wu Andreas Wahner Yuanhang Zhang | 2018 | Science Bulletin2018,63,16: | 25 |
| 2 | Engineering the Coordination Sphere of Isolated Active Sites to Explore the Intrinsic Activity in Single-Atom Catalysts显示文摘Reducing the dimensions of metallic nanoparticles to isolated,single atom has attracted considerable attention in heterogeneous catalysis,because it significantly improves atomic utilization and often leads to distinct catalytic performance.Through extensive research,it has been recognized that the local coordination environment of single atoms has an important influence on their electronic structures and catalytic behaviors.In this review,we summarize a series of representative systems of single-atom catalysts,discussing their preparation,characterization,and structure-property relationship,with an emphasis on the correlation between the coordination spheres of isolated reactive centers and their intrinsic catalytic activities.We also share our perspectives on the current challenges and future research promises in the development of single-atom catalysis.With this article,we aim to highlight the possibility of finely tuning the catalytic performances by engineering the coordination spheres of single-atom sites and provide new insights into the further development for this emerging research field. | Xin Wu Huabin Zhang Shouwei Zuo Juncai Dong Yang Li Jian Zhang Yu Han | 2021 | Nano-Micro Letters2021,13,9: | 4 |
| 3 | In situ monitoring of atmospheric nitrous acid based on multi-pumping flow system and liquid waveguide capillary cell显示文摘In the last four decades, various techniques including spectroscopic, wet chemical and mass spectrometric methods, have been developed and applied for the detection of ambient nitrous acid(HONO). We developed a HONO detection system based on long path photometry which consists of three independent modules i.e., sampling module, fluid propulsion module and detection module. In the propulsion module, solenoid pumps are applied. With solenoid pumps the pulsed flow can be computer controlled both in terms of pump stroke volume and pulse frequency, which enables the attainment of a very stable flow rate. In the detection module, a customized Liquid Waveguide Capillary Cell(LWCC) is used. The customized LWCC pre-sets the optical fiber in-coupling with the liquid wave guide, providing the option of fast startup and easy maintenance of the absorption photometry. In summer 2014, our system was deployed in a comprehensive campaign at a rural site in the North China Plain. More than one month of high quality HONO data spanning from the limit of detection to 5 ppb were collected. Intercomparison of our system with another established system from Forschungszentrum Juelich is presented and discussed. In conclusion, our instrument achieved a detection limit of 10 ppt V within2 min and a measurement uncertainty of 7%, which is well suited for investigation of the HONO budget from urban to rural conditions in China. | Yuhan Liu Keding Lu Huabin Dong Xin Li Peng Cheng Qi Zou Yusheng Wu Xingang Liu Yuanhang Zhang | 2016 | Journal of Environmental Sciences2016,28,5: | 4 |
| 4 | Silencing myostatin gene by RNAi in sheep embryos显示文摘 | Dayun Tang Huabin Zhu Jianmin Wu Hanzhong Chen Yan Zhang Xueming Zhao Xiaoliang Chen Weihua Du Dong Wang Xiukun Lin | 2012 | Journal of Biotechnology2012,,3: | 2 |
| 5 | Identification of differentially expressed proteins between bull X and Y spermatozoa显示文摘 | Xiaoli Chen Huabin Zhu Chengjiang Wu Weidong Han Haisheng Hao Xueming Zhao Weihua Du Tong Qin Yan Liu Dong Wang | 2012 | Journal of Proteomics2012,,: | 1 |
| 6 | Silencing myostatin gene by RNAi in sheep embryos显示文摘 | Dayun Tang Huabin Zhu Jianmin Wu Hanzhong Chen Yan Zhang Xueming Zhao Xiaoliang Chen Weihua Du Dong Wang Xiukun Lin | 2012 | Journal of Biotechnology2012,,3: | 1 |
| 7 | Synthesis of Dioxanes via Prins Reaction Catalyzed by Acyclic Acidic Ionic Liquids 显示文摘 | Fang Dong Jiao Changmei Zhang Huabin | 2010 | JlndEng Chem2010,16,2: | 1 |
| 8 | Cosolvent effects on the diffusions of 1,3-dichlorobenzene, L-carvone, geraniol and 3-fluorophenol in supercriticai carbon dioxide显示文摘 | DONG Xinyan SU Baogen XING Huabin | 2011 | J of Supercritical Fluids2011,58,2: | 1 |
| 9 | Technical note: the application of an improved gas and aerosol collector for ambient air pollutants in China显示文摘 | Dong Huabin Zeng Limin Hu Min | 2012 | Atmos Chem Phys2012,12,10: | 1 |
| 10 | Cosolvent effects on the diffusions of 1,3 dichlorobenzene, L-carvone, geraniol and 3-{luorophenol in supereritical carbon dioxide 显示文摘 | Dong Xinyan Su Baogen Xing Huabin | 2011 | Journal of SupercriticalFluides2011,58,21: | 1 |
| 11 | Consensus on potential biomarkers developed for use in clinical tests for schizophrenia显示文摘Background Schizophrenia is a serious mental illness affecting approximately 20 million individuals globally.Both genetic and environmental factors contribute to the illness.If left undiagnosed and untreated,schizophrenia results in impaired social function,repeated hospital admissions,reduced quality of life and decreased life expectancy.Clinical diagnosis largely relies on subjective evidence,including self-reported experiences,and reported behavioural abnormalities followed by psychiatric evaluation.In addition,psychoses may occur along with other conditions,and the symptoms are often episodic and transient,posing a significant challenge to the precision of diagnosis.Therefore,objective,specific tests using biomarkers are urgently needed for differential diagnosis of schizophrenia in clinical practice.Aims We aimed to provide evidence-based and consensus-based recommendations,with a summary of laboratory measurements that could potentially be used as biomarkers for schizophrenia,and to discuss directions for future research.Methods We searched publications within the last 10 years with the following keywords:‘schizophrenia’,‘gene’,‘inflammation’,‘neurotransmitter’,‘protein marker’,‘gut microbiota’,‘pharmacogenomics’and‘biomarker’.A draft of the consensus was discussed and agreed on by all authors at a round table session.Results We summarised the characteristics of candidate diagnostic markers for schizophrenia,including genetic,inflammatory,neurotransmitter,peripheral protein,pharmacogenomic and gut microbiota markers.We also proposed a novel laboratory process for diagnosing schizophrenia in clinical practice based on the evidence summarised in this paper.Conclusions Further efforts are needed to identify schizophrenia-specific genetic and epigenetic markers for precise diagnosis,differential diagnosis and ethnicity-specific markers for the Chinese population.The development of novel laboratory techniques is making it possible to use these biomarkers clinically to diagnose disease. | Ping Lin Junyu Sun Xiaoyan Lou Dan Li Yun Shi Zhenhua Li Peijun Ma Ping Li Shuzi Chen Weifeng Jin Shuai Liu Qing Chen Qiong Gao Lili Zhu Jie Xu Mengyuan Zhu Mengxia Wang Kangyi Liang Ling Zhao Huabin Xu Ke Dong Qingtian Li Xunjia Cheng Jinghong Chen Xiaokui Guo | 2022 | General Psychiatry2022,35,1: | 1 |