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| 1 | Cold-chain food contamination as the possible origin of COVID-19 resurgence in Beijing显示文摘COVID-19,caused by SARS-CoV-2[1,2],has been contained in China through stringent non-pharmaceutical interventions.Border control and quarantine have effectively prevented the virus from being spread by infected travellers,but the risk of resurgence caused by other routes of introduction and transmission remains unclear,and current strategies to prevent resurgence could be flawed.Since July,SARS-CoV-2 RNA contaminations in frozen food imported from countries with ongoing epidemics have been reported in nine provinces in China[3,4].However,there is no robust evidence of COVID-19 outbreaks initiated by environmentto-human transmission.Here we add to evidence of such transmission by investigating the recent COVID-19 resurgence in Beijing. | Xinghuo Pang Lili Ren Shuangsheng Wu Wentai Ma Jian Yang Lin Di Jie Li Yan Xiao Lu Kang Shichang Du Jing Du Jing Wang Gang Li Shuguang Zhai Lijuan Chen Wenxiong Zhou Shengjie Lai Lei Gao Yang Pan Quanyi Wang Mingkun Li Jianbin Wang Yanyi Huang Jianwei Wang COVID-19 Field Response Group COVID-19 Laboratory Testing Group | 2020 | National Science Review2020，7，12： | 51 |
| 2 | Ozone pollution characteristics and sensitivity analysis using an observation-based model in Nanjing,Yangtze River Delta Region of China显示文摘Ground-level ozone(O3)has become a critical pollutant impeding air quality improvement in Yangtze River Delta region of China.In this study,we present O3 pollution characteristics based on one-year online measurements during 2016 at an urban site in Nanjing,Jiangsu Province.Then,the sensitivity of O3 to its precursors during 2 O3 pollution episodes in August was analyzed using a box model based on observation(OBM).The relative incremental reactivity(RIR)of hydrocarbons was larger than other precursors,suggesting that hydrocarbons played the dominant role in O3 formation.The RIR values for NOX ranged from–0.41%/%to 0.19%/%.The O3 sensitivity was also analyzed based on relationship of simulated O3 production rates with reductions of VOC and NOX derived from scenario analyses.Simulation results illustrate that O3 formation was between VOCs-limited and transition regime.Xylenes and light alkenes were found to be key species in O3 formation according to RIR values,and their sources were determined using the Positive Matrix Factorization(PMF)model.Paints and solvent use was the largest contributor to xylenes(54%),while petrochemical industry was the most important source to propene(82%).Discussions on VOCs and NOX reduction schemes suggest that the 5%O3 control goal can be achieved by reducing VOCs by 20%.To obtain 10%O3 control goal,VOCs need to be reduced by 30%with VOCs/NOX larger than 3:1. | Ming Wang Wentai Chen Lin Zhang Wei Qin Yong Zhang Xiangzhi Zhang Xin Xie | 2020 | Journal of Environmental Sciences2020，32，7： | 30 |
| 3 | Emission factors of gaseous carbonaceous species from residential combustion of coal and crop residue briquettes显示文摘Experiments were performed to measure the emission factors (EFs) of gaseous carbonaceous species, such as CO2, CO, CH4, and non-methane volatile organic compounds (NMVOCs), from the combustion of five types of coal of varying organic maturity and two types of biomass briquettes under residential burning conditions. Samples were collected in stainless steel canisters and 2,4- dinitrophenylhydrazine (DNPH) cartridges and were analyzed by GC FID/MS and HPLC, respectively. The EFs from crop residue briquette burning were generally higher than those from coals, with the exception of CO2. The dominant NMVOC species identified in coal smoke were carbonyls (41.7%), followed by C2 unsaturated hydrocarbons (29.1%) and aromatics (12.1%), while C2 unsaturated hydrocarbons were the dominant species (68.9%) emitted from the combustion of crop residue briquettes, followed by aromatics (14.4%). A comparison of burning normal crop residues in stoves and the open field indicated that briquettes emitted a larger proportion of ethene and acetylene. Both combustion efficiency and coal organic maturity had a significant impact on NMVOC EFs from burning coal: NMVOC emissions increased with increasing coal organic maturity but decreased as the combustion efficiency improved. Emissions from the combustion of crop residue briquettes from stoves occurred mainly during the smoldering process, with low combustion efficiency. Therefore, an improved stove design to allow higher combustion efficiency would be beneficial for reducing emissions of carbonaceous air pollutants. | Qin WANG Chunmei GENG Sihua LU Wentai CHEN Min SHAO | 2013 | Frontiers of Environmental Science & Engineering2013，7，1： | 17 |
| 4 | Investigation of carbonyl compound sources at a rural site in the Yangtze River Delta region of China显示文摘Carbonyl compounds are important intermediates in atmospheric photochemistry, but their primary sources are still not understood well. In this work, carbonyls, hydrocarbons,and alkyl nitrates were continuously measured during November 2011 at a rural site in the Yangtze River Delta region of China. Mixing ratios of carbonyls and hydrocarbons showed large fluctuations during the entire measurement. The average level for total measured volatile organic compounds during the pollution episode from 25 th to 27 th November, 2011 was 91.6 ppb, about 7 times the value for the clean period of 7th–8th, November, 2011. To preliminarily identify toluene sources at this site, the emission ratio of toluene to benzene(T/B) during the pollution episode was determined based on photochemical ages derived from the relationship of alkyl nitrates to their parent alkanes. The calculated T/B was5.8 ppb/ppb, significantly higher than the values of 0.2–1.7 ppb/ppb for vehicular exhaust and other combustion sources, indicating the dominant influence of industrial emissions on ambient toluene. The contributions of industrial sources to ambient carbonyls were then calculated using a multiple linear regression fit model that used toluene and alkyl nitrates as respective tracers for industrial emission and secondary production. During the pollution episode, 18.5%, 69.0%, and 52.9% of measured formaldehyde, acetaldehyde, and acetone were considered to be attributable to industrial emissions. The emission ratios relative to toluene for formaldehyde, acetaldehyde, and acetone were determined to be 0.10, 0.20 and0.40 ppb/ppb, respectively. More research on industrial carbonyl emission characteristics is needed to understand carbonyl sources better. | Ming Wang Wentai Chen Min Shao Sihua Lu Limin Zeng Min Hu | 2015 | Journal of Environmental Sciences2015，27，2： | 8 |
| 5 | The Suitability of Using Leaf Area Index to Quantify Soil Loss under Vegetation Cover显示文摘Soil erosion by water under forest cover is a serious problem in southern China.A comparative study was carried out on the use of leaf area index(LAI) and vegetation fractional coverage(VFC) in quantifying soil loss under vegetation cover.Five types of vegetation with varied LAI and VFC under field conditions were exposed to two rainfall rates(40 mm h-1 and 54 mm h-1) using a portable rainfall simulator.Runoff rate,sediment concentration and soil loss rate were measured at relatively runoff stable state.Significant negative exponential relationship(p < 0.05,R2 = 0.83) and linear relationship(p < 0.05,R2 = 0.84) were obtained between LAI and sediment concentration,while no significant relationship existed between VFC and sediment concentration.The mechanism by which vegetation canopy prevents soil loss was by reducing rainfall kinetic energy and sediment concentration.LAI could better quantify such a role than VFC.However,neither LAI nor VFC could explain runoff rate or soil loss rate.Caution must be taken when using LAI to quantify the role of certain vegetation in soil and water conservation. | ZHANG Wentai YU Dongsheng SHI Xuezheng WANG Hongjie GU Zhujun ZHANG Xiangyan TAN Manzhi | 2011 | Journal of Mountain Science2011，8，4： | 7 |
| 6 | Improving the electrical performance of resistive switching memory using doping technology显示文摘In this paper, improvements of resistive random access memory (RRAM) using doping technology are summarized and analyzed. Based on a Cu/ZrO2/Pt device, three doping technologies with Ti ions, Cu, and Cu nanocrystal, respectively, are adopted in the experiments. Compared to an undoped device, improvements focus on four points: eliminating the electroforming process, reducing operation voltage, improving electrical uniformity, and increasing device yield. In addition, thermal stability of the high resistance state and better retention are also achieved by the doping technology. We demonstrate that doping technology is an effective way of improving the electrical performance of RRAM. | WANG Yan LIU Oi LU HangBing LONG ShiBing WANG Wei LI YingTao ZHANG Sen LIAN WenTai YANG JianHong LIU Ming | 2012 | Chinese Science Bulletin2012，57，11： | 6 |
| 7 | Appropriately adapted properties of hot-extruded Zn-0.5Cu-xFe alloys aimed for biodegradable guided bone regeneration membrane application显示文摘Appropriately adapted comprehensive mechanical properties,degradation behavior and biocompatibility are prerequisites for the application of Zn-based biodegradable implants.In this study,hot-extruded Zn-0.5Cu-xFe(x=0.1,0.2 and 0.4 wt%)alloys were fabricated as candidates for biodegradable materials for guided bone regeneration(GBR)membranes.The hot-extrusion process and Cu alloying were expected mostly to enhance the mechanical properties,and the Fe alloying was added mainly for regulating the degradation.The microstructure,mechanical properties and in vitro degradation behavior were systematically investigated.The ZnCuFe alloys were composed of a Zn matrix and FeZn13 phase.With increasing Fe content,a higher FeZn13 phase precipitation with larger particles was observed.Since elongation declined significantly until fracture with increasing Fe content up to 0.4 wt%,the ZnCuFe(0.2 wt%)alloy achieved a good balance between mechanical strength and ductility,with an ultimate tensile strength of 202.3 MPa and elongation at fracture of 41.2%.Moreover,the addition of Fe successfully accelerated the degradation of ZnCuFe alloys.The ZnCuFe(0.2 wt%)alloy showed relatively uniform corrosion in the long-term degradation test.Furthermore,extracts of the ZnCuFe(0.2 wt%)alloy showed no apparent cytotoxic effects against L929 fibroblasts,Saos-2 osteoblasts or TAg periosteal cells.The ZnCuFe(0.2 wt%)alloy exhibited the potential to inhibit bacterial adhesion of Streptococcus gordonii and mixed oral bacteria.Our study provides evidence that the ZnCuFe(0.2 wt%)alloy can represent a promising material for the application as a suitable GBR membrane. | Wentai Zhang Ping Li Gang Shen Xiaoshan Mo Chao Zhou Dorothea Alexander Frank Rupp Jürgen Geis-Gerstorfer Haijun Zhang Guojiang Wan | 2021 | Bioactive Materials2021，6，4： | 6 |
| 8 | One-Step Preparation of Green Fabric for Continuous Antibacterial Applications显示文摘Polypropylene(PP)scaffolds are the most commonly used biomedical scaffolds despite their disadvan-tages,which include problems with adhesion,infection,and inflammatory responses.Here,we report on the successful development of a facile one-step method to fabricate a series of novel triclosan poly-dopamine polypropylene(TPP)composite scaffolds and thereby effectively improve the biocompatibility and long-term antibacterial properties of PP scaffolds.The antibacterial triclosan can effectively interact with dopamine during biocompatible polydopamine formation on the PP scaffold by one-step green fab-rication.Thanks to the sustained release of triclosan from the biocompatible polydopamine coating,a 5mm×5mm sample of TPP-coated scaffold made with a triclosan concentration of 8 mg-mL^(-1)(referredto herein as TPP-8)exhibited a continuous antibacterial effect against both Escherichia coli(E.coli)and Staphylococcus aureus(S.aureus)for more than 15d,at maximum antibacterial volumes of 2 and 5mL,respectively.Our study establishes a new direction for facile long-term antibacterial studies for medical applications. | Rongkang Huang Minghui Hu Weiwen Liang Juanjuan Zheng Yang Du Yanhuan Lin Huaiming Wang Wentai Guo Zhantao Zeng Chuangkun Li Ming Li Hui Wang Xingcai Zhang | 2021 | Engineering2021，7，3： | 3 |
| 9 | Multi-channel radar array design method and algorithm显示文摘The array design of radar antenna is no more a new problem at all. Nevertheless, the array design of multi-channel radar, especially that of MIMO (multiple-input multiple-output) radar, is a new problem. The performance of space diversion and spatial sampling of target scattering are dependent on the array design of MIMO radar, and consequently, which in turn will determine the performances of target parameter estimation, DOA, and imaging. In this paper, commencing with target scattering model, T/R signal model of MIMO radar, and spatial sampling ability for this system are analyzed. Conceptually, under the far field condition, spatial convolution principle determines the array design theory. Based on this idea, array design method and also algorithm are proposed in this paper. | SU Yi ZHU YuTao YU WenXian XU HongBo LEI WenTai | 2010 | Science China(Information Sciences)2010，53，7： | 3 |
| 10 | Self-assembly synthesis of phosphorus-doped tubular g-C_(3)N_(4);Ti_(3)C_(2)MXene Schottky junction for boosting photocatalytic hydrogen evolution显示文摘Establishing highly effective charge transfer channels in carbon nitride(g-C_(3)N_(4)) to enhance its photocatalytic activity is still a challenging issue.Herein,the delaminated 2D Ti_(3)C_(2) MXene nanosheets were employed to decorate the P-doped tubular g-C_(3)N_(4)(PTCN)for engineering 1D/2D Schottky heterojunction(PTCN/TC)through electrostatic self-assembly.The optimized PTCN/TC exhibited the highest hydrogen evolution rate(565 μmol h^(-1)g^(-1)),which was 4.3 and 2.0-fold higher than pristine bulk g-C_(3)N_(4) and PTCN,respectively.Such enhancement may be primarily attributed to the phosphorus heteroatom doped and unique structure of 1D/2D g-C_(3)N_(4)/Ti_(3)C_(2) Schottky heterojunction,enhancing the light-harvesting and charges’separation.One-dimensional pathway of g-C_(3)N_(4) tube and built-in electric field of interfacial Schottky effect can significantly facilitate the spatial separation of photogenerated charge carriers,and simultaneously inhibit their recombination via Schottky barrier.In this composite,metallic Ti_(3)C_(2) was served as electrons sink and photons collector.Moreover,ultrathin Ti_(3)C_(2) flake with exposed terminal metal sites as a co-catalyst exhibited higher photocatalytic reactivity in H2 evolution compared to carbon materials(such as reduced graphene oxide).This work not only proposed the mechanism of tubular g-C_(3)N_(4)/Ti_(3)C_(2) Schottky junction in photocatalysis,but also provided a feasible way to load ultrathin Ti_(3)C_(2) as a co-catalyst for designing highly efficient photocatalysts. | Kelei Huang Chunhu Li Xiuli Zhang Liang Wang Wentai Wang Xiangchao Meng | 2023 | Green Energy & Environment2023，8，1： | 2 |
| 11 | MIMO RADAR IMAGING MODEL AND ALGORITHM显示文摘Based on the array architecture of multiple transmitting/receiving antennas, Multi-Input Multi-Output (MIMO) radar provides a new mechanism for radar imaging technology. In order to explore the processing approach to this imaging mechanism, the two dimensional (2D) imaging model of MIMO radar is established first, and the spatial sampling ability is analyzed from the concept of spatial convolution of the antenna elements. The target spatial spectral filling format of MIMO radar with monochromatic transmitting signal is described. High-resolution imaging capability of MIMO radar is analyzed according to spatial spectral coverage and the corresponding imaging algorithm is presented. Finally, field imaging experiment is used to demonstrate the superior imaging performance of MIMO radar. | Wang Huaijun Lei Wentai Huang Chunlin Su Yi | 2009 | Journal of Electronics(China)2009，26，5： | 2 |
| 12 | Post COVID-19 burden:focus on the short-term condition显示文摘The catastrophic pandemic of the coronavirus disease 2019(COVID-19)has caused serious harm to human life and global social economy.As of June 13,2022,there were more than 530 million confirmed cases of COVID-19 and over 6.3 million deaths[1].During the past 2 years,global studies on prevention and therapies for COVID-19 have achieved a series of promising findings,including antiviral drugs(Remdesivir,Molnupiravir,Paxlovid)and monoclonal antibodies(Bamlanivimab and Etesevimab,Sotrovimab,Casirivimab and Imdevimab)[2]. | Fengwen Yang Bo Pang Xinyao Jin Zhe Chen Wentai Pang Qingquan Liu Junhua Zhang Boli Zhang | 2022 | Acupuncture and Herbal Medicine2022，2，3： | 2 |
| 13 | Approaches for improving the performance of filament-type resistive switching memory显示文摘Resistive random access memory (RRAM) has received significant research interest because of its promising potential in terms of down-scaling,high density,high speed and low power. However,its endurance,retention and uniformity are still imperfect. In this article,the physical mechanisms of filament-type RRAM and the approaches for improving the switching performance,including doping,process optimization and interface engineering,are introduced. | LIAN WenTai LONG ShiBing LU HangBing LIU Qi LI YingTao ZHANG Sen WANG Yan HUO ZongLiang DAI YueHua CHEN JunNing LIU Ming | 2011 | Chinese Science Bulletin2011，56，4： | 2 |
| 14 | Emission inventory of carbonaceous pollutants from biomass burning in the Pearl River Delta Region, China显示文摘 | Yisheng Zhang Min Shao Yun Lin Shengji Luan Ning Mao Wentai Chen Ming Wang | 2012 | Atmospheric Environment2012，，： | 2 |
| 15 | An Efficient Inductive Power Link Design for Retinal Prosthesis显示文摘 | Kendir G A Liu Wentai Bashirullah R | 2004 | IEEE Transactions on Circuits and Systems2004，60，4： | 1 |
| 16 | Design and Perform- ance of a Wideband Sub-sampling Front-end for Mtdti- standard Radios 显示文摘 | YUCE M TEKIN A WENTAI LIU | 2008 | AEU-Intemational Journal of Elec- tronics and Communications2008，62，1： | 1 |
| 17 | The thrust and nappe tectonic zone along the southern margin of the coal-forming region of north China显示文摘 | CAO Daiyong GAO Wentai WANG Changxian | 1992 | Jurnal of China University of Mining & Technology1992，3，1： | 1 |
| 18 | Distribution and storage of soil organic and inorganic carbon under different ecological zones in Xinjiang,China显示文摘The objective of this study was to quantify both soil organic carbon(SOC)and soil inorganic carbon(SIC)stocks in different ecological zones in Xinjiang Region,the largest arid and semi-arid region in northwest China.The specific focus was on the vertical distributions of 641 typical soil profiles(0-100 cm).The study region covered five ecological zones:I-Altai/west Junggar;II-Junggar basin;III-Tianshan mountain;IV-Tarim basin;and V-Kunlun-Altun mountains.The zones are categorized by their specific geographical locations from north to south with terrains derived from mountains to basins.The data used in the study were obtained from the first(1960s)and the second(1980s)National Soil Surveys and partially from the field survey of this study conducted in 2013.The results suggest that there are 11.74 Pg SOC and 26.71 Pg SIC total stocks in the 0-100 cm surface soil over the entire study region.The distributions of SOC and SIC were found to be non-uniform.The Tianshan mountain zone has the highest SOC stock,followed by the Tarim basin,Kunlun-Altun mountains,Altai and west Junggar(Altai/west Junggar),and Junggar basin zones.In contrast,the Tarim basin zone had the highest SIC stock,followed by the Tianshan mountain,Kunlun-Altun mountains,Junggar basin,and Altai/west Junggar zones.The SOC content decreases gradually from northwest to southeast and from mountains to deserts;while the SIC content decreases gradually from south to north.The SOC and SIC contents also change with soil depth.Within a given ecological zone,the SOC content increased with increasing soil depth,peaked at about 20-40 cm,then it decreased with the bigger depths below 40 cm.The SIC contents increased gradually from 0 to 40 cm,and then decreased gradually with increasing soil depth over the 40-100 cm depth in all ecological zones except for the Tianshan mountain area. | An Yan Baoguo Li Feng Huang Wentai Zhang Ping'an Jiang Jiandong Sheng | 2019 | International Journal of Agricultural and Biological Engineering2019，12，1： | 1 |
| 19 | Microfluidic 3D printing polyhydroxyalkanoates-based bionic skin for wound healing显示文摘Biomimetic scaffolds with extracellular matrix(ECM)-mimicking structure have been widely investigated in wound healing applications,while insufficient mechanical strength and limited biological activity remain major challenges.Here,we present a microfluidic 3D printing biomimetic polyhydroxyalkanoates-based scaffold with excellent mechanical properties and hierarchical porous structures for enhanced wound healing.This scaffold is composed of poly(3-hydroxybutyrate-4-hydroxybutyrate)and polycaprolactone,endowing it with excellent tensile strength(2.99 MPa)and degradability(80%of weight loss within 7 d).The ECM-mimicking hierarchical porous structure allows bone marrow mesenchymal stem cells(BMSCs)and human umbilical vein endothelial cells(HUVECs)to proliferate and adhere on the scaffolds.Besides,anisotropic composite scaffolds loaded with BMSCs and HUVECs can significantly promote re-epithelization,collagen deposition and capillary formation in rat wound defects,indicating their satisfactory in vivo tissue regenerative activity.These results indicate the feasibility of polyhydroxyalkanoates-based biomimetic scaffolds for skin repair and regeneration,which also provide a promising therapeutic strategy in diverse tissue engineering applications. | Wentai Guo Xiaocheng Wang Chaoyu Yang Rongkang Huang Hui Wang Yuanjin Zhao | 2022 | Materials Futures2022，1，1： | 1 |
| 20 | An optimal design methodology for inductive power link with Class-E amplifier显示文摘 | Kendir G A Liu Wentai Wang Guoxing | 2005 | IEEE Transactions on Circuits and Systems I:Regular Papers2005，52，5： | 1 |
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