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63篇 您的检索式:作者名="Wenjun MENG"
    题名 作者 年代 出处 被引量
1Water regime-nitrogen fertilizer incorporation interaction:Field study on methane and nitrous oxide emissions from a rice agroecosystem in Harbin, China显示文摘Water regime and nitrogen(N) fertilizer are two important factors impacting greenhouse gases(GHG) emission from paddy field, whereas their effects have not been well studied in cold region. In this study, we conducted a two-year field experiment to study the impacts of water regime and N fertilizer on rice yields and GHG emissions in Harbin, China, a cold region located in high latitudes. Our results showed that intermittent irrigation significantly decreased methane(CH_4) emission compared with continuous flooding, however,the decrement was far lower than the global average level. The N_2O emissions were very small when flooded but peaked at the beginning of the disappearance of floodwater. The N fertilizer treatments increased CH_4 emissions at low level(75 kg N/ha). But both CH_4 and N_2O emissions were uninfluenced at the levels of 150 kg N/ha and 225 kg N/ha. Rice yields increased under intermittent irrigation and were highest at the level of 150 kg N/ha. From our results, we recommended that the intermittent irrigation and 150 kg N/ha as the ideal water regime-nitrogen fertilizer incorporation for this area to achieve low GHG emissions without impacting rice yields.Wenjun Dong Jia Guo Lijun Xu Zhifeng Song Jun Zhang Ao Tang Xijuan Zhang Chunxu Leng Youhong Liu Lianmin Wang Lizhi Wang Yang Yu Zhongliang Yang Yilei Yu Ying Meng Yongcai Lai 2018Journal of Environmental Sciences2018,30,2:12
2Structure of the receptor-activated human TRPC6 and TRPC3 ion channels显示文摘TRPC6 和 TRPC3 是属于正规短暂受体潜力(TRPC ) 的家庭的激活受体的 nonselective 阳离子隧道隧道。他们被 diacylglycerol 激活,一个类脂化合物秒送信人。TRPC6 和 TRPC3 涉及许多生理的过程并且在人的基因疾病含有。这里我们在场在有最新识别的高亲密关系的禁止者 BTDM 的建筑群的人的 TRPC6 homotetramer 的结构由单个粒子的 cryo 电子显微镜学解决了到 3.8?分辨率。我们也在 4.4 点介绍人的 TRPC3 的结构吗?分辨率。这些结构显示出塑造钟的 cytosolic 层在保持 transmembrane 层的二层的体系结构。包括 N 终端 ankyrin 重复和 C 终端卷卷, cytosolic 领域的广泛的内部子单元的相互作用贡献 tetramer 集会。高亲密关系的禁止者 BTDM 在 S5-S6 毛孔领域和电压之间挤像传感器的领域禁止隧道开。我们的结构揭开 TRPC 隧道的分子的建筑学并且为理解这些隧道的机制提供一个结构的基础。Qinglin Tang Wenjun Guo Li Zheng Jing-Xiang Wu Meng Liu Xindi Zhou Xiaolin Zhang Lei Chen 2018Cell Research2018,28,7:10
3Whole genome sequencing of 10K patients with acute ischaemic stroke or transient ischaemic attack: design, methods and baseline patient characteristics显示文摘Background and purpose Stroke is the second leading cause of death worldwide and the leading cause of mortality and long-term disability in China,but its underlying risk genes and pathways are far from being comprehensively understood.We here describe the design and methods of whole genome sequencing(WGS)for 10914 patients with acute ischaemic stroke or transient ischaemic attack from the Third China National Stroke Registry(CNSR-III).Methods Baseline clinical characteristics of the included patients in this study were reported.DNA was extracted from white blood cells of participants.Libraries are constructed using qualified DNA,and WGS is conducted on BGISEQ-500 platform.The average depth is intended to be greater than 30×for each subject.Afterwards,Sentieon software is applied to process the sequencing data under the Genome Analysis Toolkit best practice guidance to call genotypes of single nucleotide variants(SNVs)and insertion-deletions.For each included subject,21 fingerprint SNVs are genotyped by MassARRAY assays to verify that DNA sample and sequencing data originate from the same individual.The copy number variations and structural variations are also called for each patient.All of the genetic variants are annotated and predicted by bioinformatics software or by reviewing public databases.Results The average age of the included 10914 patients was 62.2±11.3 years,and 31.4%patients were women.Most of the baseline clinical characteristics of the 10914 and the excluded patients were balanced.Conclusions The WGS data together with abundant clinical and imaging data of CNSR-III could provide opportunity to elucidate the molecular mechanisms and discover novel therapeutic targets for stroke.Si Cheng Zhe Xu Yang Liu Jinxi Lin Yong Jiang Yilong Wang Xia Meng Anxin Wang Xinying Huang Zhimin Wang Guohua Chen Songdi Wu Zhengchang Jia Yongming Chen Xuerong Qiu Jun Wu Binbin Song Weizhong Ji Zhongping An Wenjun Xue Lili Zhao Yu Geng Hongyan Li Hao Li Yongjun Wang 2021Stroke & Vascular Neurology2021,6,2:8
4Estimation of Gridded Atmospheric Oxygen Consumption from 1975 to 2018显示文摘Atmospheric Oxygen(O2)is one of the dominating features that allow the earth to be a habitable planet with advanced civilization and diverse biology.However,since the late 1980 s,observational data have indicated a steady decline in O2 content on the scale of parts-per-million level.The current scientific consensus is that the decline is caused by the fossil-fuel combustion;however,few works have been done to quantitatively evaluate the response of O2 cycle under the anthropogenic impact,at both the global and regional scales.This paper manages to quantify the land O2 flux and makes the initial step to quantificationally describe the anthropogenic impacts on the global O2 budget.Our estimation reveals that the global O2 consumption has experienced an increase from 33.69±1.11 to47.63±0.80 Gt(gigaton,109 t)O2yr^-1 between 2000 and 2018,while the land production of O2(totaling 11.34±13.48 Gt O2yr^-1 averaged over the same period)increased only slightly.In 2018,the combustion of fossil-fuel and industrial activities(38.45±0.61 Gt O2yr^-1)contributed the most to consumption,followed by wildfires(4.97±0.48 Gt O2yr^-1)as well as livestock and human respiration processes(2.48±0.16 and 1.73±0.13 Gt O2yr^-1,respectively).Burning of fossil-fuel that causes large O2 fluxes occurs in East Asia,India,North America,and Europe,while wildfires that cause large fluxes in comparable magnitude are mainly distributed in central Africa.Xiaoyue LIU Jianping HUANG Jiping HUANG Changyu LI Lei DING Wenjun MENG 2020Journal of Meteorological Research2020,34,3:8
5Impacts of nighttime post-anthesis warming on rice productivity and grain quality in East China显示文摘The impacts of nighttime post-anthesis warming on rice productivity and grain quality in East China were evaluated for two cultivars, II You 128, an indica rice, and Wuyunjing 7, a japonica rice. Warming by 3.0 °C stimulated the nighttime respiration rate and decreased the photosynthesis rate, resulting in significant decreases of 21.2% and 24.9% in aboveground biomass accumulation for II You 128 and Wuyunjing 7, respectively. Warming significantly reduced the rates of seed setting and grain filling, especially of inferior kernels(those lower in panicles), while the filling rate of superior kernels remained almost unchanged. As a result, 1000-grain weight and grain yield were respectively 3.7% and 30.0% lower for II You 128 and 12.8% and 34.3% for Wuyunjing 7 in warmed plots than in the unwarmed control. Nighttime warming also significantly reduced the grain milling and appearance quality of both varieties. More negative effects of warming on inferior than on superior kernels were found. The above results have important implications for rice variety cultivation in East China.Wenjun Dong Jin Chen Lili Wang Yunlu Tian Bin Zhang Yongcai Lai Ying Meng Chunrong Qian Jia Guo 2014The Crop Journal2014,2,1:6
6Substantial transition to clean household energy mix in rural China显示文摘The household energy mix has significant impacts on human health and climate,as it contributes greatly to many health-and climate-relevant air pollutants.Compared to the well-established urban energy statistical system,the rural household energy statistical system is incomplete and is often associated with high biases.Via a nationwide investigation,this study revealed high contributions to energy supply from coal and biomass fuels in the rural household energy sector,while electricity comprised∼20%.Stacking(the use of multiple sources of energy)is significant,and the average number of energy types was 2.8 per household.Compared to 2012,the consumption of biomass and coals in 2017 decreased by 45%and 12%,respectively,while the gas consumption amount increased by 204%.Increased gas and decreased coal consumptions were mainly in cooking,while decreased biomass was in both cooking(41%)and heating(59%).The time-sharing fraction of electricity and gases(E&G)for daily cooking grew,reaching 69%in 2017,but for space heating,traditional solid fuels were still dominant,with the national average shared fraction of E&G being only 20%.The non-uniform spatial distribution and the non-linear increase in the fraction of E&G indicated challenges to achieving universal access to modern cooking energy by 2030,particularly in less-developed rural and mountainous areas.In some non-typical heating zones,the increased share of E&G for heating was significant and largely driven by income growth,but in typical heating zones,the time-sharing fraction was<5%and was not significantly increased,except in areas with policy intervention.The intervention policy not only led to dramatic increases in the clean energy fraction for heating but also accelerated the clean cooking transition.Higher income,higher education,younger age,less energy/stove stacking and smaller family size positively impacted the clean energy transition.Guofeng Shen Rui Xiong Yanlin Tian Zhihan Luo Bahabaike Jiangtulu Wenjun Meng Wei Du Jing Meng Yuanchen Chen Bing Xue Bin Wang Yonghong Duan Jia Duo Fenggui Fan Lei Huang Tianzhen Ju Fenggui Liu Shunxin Li Xianli Liu Yungui Li Mu Wang Ying Nan Bo Pan Yanfang Pan Lizhi Wang Eddy Zeng Chao Zhan Yilin Chen Huizhong Shen Hefa Cheng Shu Tao 2022National Science Review2022,9,7:4
7Distribution and sources of polycyclic aromatic hydrocarbons and phthalic acid esters in water and surface sediment from the Three Gorges Reservoir显示文摘After the impoundment of the Three Gorges Reservoir(TGR), the hydrological situation of the reservoir has changed greatly. The concentration and distribution of typical persistent organic pollutants in water and sediment have also changed accordingly. In this study, the concentration, distribution and potential sources of 16 polycyclic aromatic hydrocarbons(PAHs) and 6 phthalic acid esters(PAEs) during the water drawdown and impoundment periods were investigated in water and sediment from the TGR. According to our results, PAHs and PAEs showed temporal and spatial variations. The mean ΣPAH and ΣPAE concentrations in water and sediment were both higher during the water impoundment period than during the water drawdown period. The water samples from the main stream showed larger ΣPAH concentration fluctuations than those from tributaries. Both the PAH and PAE concentrations meet the Chinese national water environmental quality standard(GB 3838-2002). PAH monomers with 2–3 rings and 4 rings were dominant in water, and 4-ring and 5–6-ring PAHs were dominant in sediment. Di-n-butyl phthalate(DBP) and di-2-ethylhexyl phthalate(DEHP)were the dominant PAE pollutants in the TGR. DBP and DEHP had the highest concentrations in water and sediment, respectively. The main source of PAHs in water from the TGR was petroleum and emissions from coal and biomass combustion, whereas the main sources of PAHs in sediments included coal and biomass combustion, petroleum, and petroleum combustion. The main source of PAEs in water was domestic waste, and the plastics and heavy chemical industries were the main sources of PAEs in sediment.Li Lin Lei Dong Xiaoyang Meng Qingyun Li Zhuo Huang Chao Li Rui Li Wenjun Yang John Crittenden 2018Journal of Environmental Sciences2018,30,7:4
8Materials Experiment on Tiangong-2 Space Laboratory显示文摘During the China's Tiangong-2(TG-2) flight mission, the experiments of 18 kinds of material samples were conducted in space by using a Multiple Materials Processing Furnace(MMPF) mounted in the orbital module of the TG-2 space laboratory. After the experiments of 12 kinds of samples of the first and second batches were completed successfully, astronauts packed and brought them back to the ground by ShenzhouII spacecraft. By studying processing and formation on semiconductor and optoelectronics materials, metal alloys and metastable materials, functional single-crystal, micro-and nano-composite materials encapsulated in sample ampoules both in space and on Earth, we expect to explore some physical and chemical processes and mechanism of the materials formation that are normally obscured and therefore are difficult to study quantitatively on the ground due to the gravity-induced convection, to obtain the processing and synthesis technology for preparing high quality materials, and lead to the improvement and development of materials processing techniques on Earth, and also develop the experiment device and comprehensive ability for materials experiment in microgravity environment. This report briefly introduces the main points of each research work and preliminary comparative analysis results of 12 samples carried out by scientists undertaking research task.LI Xiangyang LU Ye MENG Xiangjian WANG Jianlu WANG Reng CHEN Lidong HUA Zile LI Xiaoya SHI Jianlin LIU Jinfeng XU Guisheng WEI Bingbo XIE Wenjun YIN Zhigang ZHANG Xingwang JIANG Hongxiang LI Hong LUO Xinghong ZHANG Haifeng ZHAO Jiuzhou WANG Binbin PAN Mingxiang 2018空间科学学报2018,38,5:4
9Interferon as a Mucosal Adjuvant for an Influenza Vaccine in Pigs显示文摘Interferon,a natural protein that is produced by a variety of cells during viral infection,activates the transcription of multiple functional genes in cells,regulates synergy among various signaling pathways,and mediates many biological functions such as antiviral activity,immune regulation,and cell growth.However,clinical research on interferon in livestock is lacking.In this study,recombinant porcine interferon(PoIFNα)was used as an adjuvant,in combination with inactivated influenza virus,to vaccinate 6-week-old pigs via nasal infusion.The transcription of target genes was then monitored and the functions of PoIFNαwere determined with respect to the activation of mucosal immunity.We found that a combination of low-dose PoIFNαand in activated influenza virus could significantly up-regulate the expression of immunoregulatory cytokines such as IL-2,IL-1β,IFN-γ,IL-6,and IL-10 by real-time PCR,suggesting the induction of a strong mucosal innate immune response after administration.In addition,low-dose PoIFNαcan significant enhancing the transcription of genes encoding homing factors including CCR9 and CCR10(P<0.001),thereby resulting in the induction of higher levels of HA-specific antibodies(P<0.05),which can be determined by ELISA and IFA.Post-immunization challenges with H1N1 virus demonstrated that PoIFNot,combined with inactivated influenza virus,could alleviate clinical signs in pigs during the early stages of viral infection.These studies reveal low-dose PoIFNαas a potential mucosal adjuvant for influenza virus in pigs.Lirong Liu Wenhui Fan He Zhang Shuang Zhang Liang Cui Meng Wang Xiaoyuan Bai Wenxian Yang Lei Sun Limin Yang Wenjun Liu Jing Li 2019Virologica Sinica2019,34,3:3
10Osmium isotope of the Co-rich crust from seamount Allison, central Pacific and its use for determination of growth hiatus and growth age显示文摘Based on its microstructure, Co-rich crust A1-1 from seamount Allison, central Pacific, was scraped at averaged interval of 1.3 mm to measure osmium isotopic composition, and subsequently to establish the 187Os/188Os profile of scraping section of the crust. By observing the variation of 187Os/188Os under 10Be chronology and matching it to the well-known seawater Os isotope evolution of the past 40 Ma, two growth hiatuses (H1 and H2) occurring in the periods respectively between 13.6 and 29.6 Ma and between 8 and 9.8 Ma in the crust were recognized. According to the two hiatuses, the dating scheme for each scraped layer of the crust was suggested. For the upper layers younger than 6.8Ma, their growth ages were calibrated under 10Be chronology; for the lower layers older than 6.8Ma, their growth ages were obtained from 187Os/188Os evaluation curve by linear interpolation. Hereby, the age for the most inner layer of the crust was determined to be 39.5 Ma. H1 and H2 exactly correspond to the boundary between phosphatization and non-phosphatization and volcanic ash layer in the crust, respectively.MENG XianWei LIU YanGuang QU WenJun SHI XueFa 2008Science China Earth Sciences2008,51,10:2
11Characterization methods of organic electrode materials显示文摘The development of novel organic electrode materials is of great significance for improving the reversible capacity and cycle stability of rechargeable batteries.Before practical application,it is essential to characterize the electrode materials to study their structures,redox mechanisms and electrochemical performances.In this review,the common characterization methods that have been adopted so far are summarized from two aspects:experimental characterization and theoretical calculation.The experimental characterization is introduced in detail from structural characterization,electrochemical characterization and electrode reaction chara cterization.The experimental purposes and working principles of various experimental characterization methods are briefly illustrated.As the auxilia ry means,theoretical calculation provides the theoretical basis for characterizing the electrochemical reaction mechanism of organic electrode materials.Through these characterizations,we will have a deep understanding about the material structures,electrochemical redox mechanisms,electrochemical properties and the relationships of structure-property.It is hoped that this review would help researchers to select the suitable characterization methods to analyze the structures and performances of organic electrode materials quickly and effectively.Meng Zhang Wenjun Zhou Weiwei Huang 2021Journal of Energy Chemistry2021,30,6:2
12Re- habihty Analysis - Based Numerical Calculation of Metal Structure of Bridge Crane 显示文摘Meng Wenjun Yang Zhengmao Qi Xiaolong 2013Mathematical Problems in Engineering2013,,:1
13A Diameter Formula for an Undirected Double-loop Network显示文摘Chen Baoxing Meng Jixiang Xiao Wenjun 2009ARS Combinatoria2009,90,:1
14Determination of water states and the structural parameters of W/O microemulsions显示文摘Guowei Zhou Ganzuo Li Anjing Lou Wenjun Chen Meng Bao 2001Science in China Series B: Chemistry2001,,4:1
15Hydrogen-Bonded Dopant-Free Hole Transport Material Enables Efficient and Stable Inverted Perovskite Solar Cells显示文摘Although many dopant-free hole transport materials(HTMs)for perovskite solar cells(PSCs)have been investigated in the literature,novel and useful molecular designs for high-performance HTMs are still needed.In this work,a hydrogen-bonding association system(NH⋯CO)between amide and carbonyl is introduced into the pure HTM layer.Rui Li Chongwen Li Maning Liu Paola Vivo Meng Zheng Zhicheng Dai Jingbo Zhan Benlin He Haiyan Li Wenjun Yang Zhongmin Zhou Haichang Zhang 2022CCS Chemistry2022,4,9:1
16Therapeutic effect of Jianpi Liqi Fang(健脾理气方)combined with transcatheter arterial chemoembolization in patients with hepatocellular carcinoma and spleen deficiency syndrome显示文摘OBJECTIVE:To investigate the therapeutic effect of the Jianpi Liqi Fang(健脾理气方,JPLQF)combined with transcatheter arterial chemoembolization(TACE)in patients with hepatocellular carcinoma(HCC)and spleen deficiency syndrome(SDS)and identify a potential indicator of efficacy.METHODS:Ninety-nine patients with HCC who were diagnosed with SDS,non-spleen deficiency syndrome(NSDS),or no syndrome(NS)were treated with JPLQF combined with TACE for three periods.Therapeutic efficacy was compared among the groups.Plasma proteins were screened using label-free discovery analysis and verified via enzyme-linked immunosorbent assay(ELISA).Furthermore,receiver operating characteristic(ROC)curves were analyzed to evaluate therapeutic indicators.RESULTS:After treatment,the Karnofsky Performance Status was significantly improved in the SDS group and significantly better than that in the NS group.The Traditional Chinese Medicine(TCM)syndrome scores were lower in the SDS group after treatment and lower than those in the NSDS group.However,alanine aminotransferase,carbohydrate antigen 19-9,alpha-fetoprotein,and carcinoembryonic antigen levels and white blood cell and platelet counts did not differ among the groups.Serum aspartate aminotransferase levels in the SDS group were significantly lower after treatment than before treatment,and total bilirubin levels were significantly lower in the SDS group than in the NSDS group.Label-free analysis identified 24 differentially expressed proteins(DEPs)between the SDS and NS groups,including 17 and 7 upregulated and downregulated proteins,respectively.Fibulin-5(FBLN5)displayed the largest difference in expression between the groups.ELISA confirmed that FBLN5 levels were significantly lower in the NSDS and NS groups than in the SDS group.Following treatment with JPLQF and TACE,FBLN5 expression was upregulated only in the SDS group.Furthermore,ROC curve analysis indicated that FBLN5 may serve as a potential indicator of the efficacy of JPLQF combined with TACE in patients with HCC and SDS.CONCLUSION:JPLQF combined with TACE improved quality of life,clinical TCM symptoms,and liver function in patients with HCC and SDS.FBLN5 expression was significantly altered by treatment with JPLQF and TACE in patients with HCC and SDS.CHEN Xiaole WANG Peng MENG Zhiqiang YANG Mengdie ZHOU Wenjun SU Shibing CHEN Jian 2021Journal of Traditional Chinese Medicine2021,41,1:1
17Solid State Ionics显示文摘Wenjun Zheng Wenqin Pang Guangyao Meng 1998108 : 37 - 411998,108,:1
18Vapor phase epitaxy of PbS single-crystal films on water-soluble substrates and application to photodetectors显示文摘Lead sulfide(PbS),a typical functional semiconductor material,has attracted serious attention due to its great potential in optoelectronics applications.However,controllable growth of PbS single-crystal film still remains a great challenge.Here,we report heteroepitaxial growth of large-scale highly crystalline PbS films on alkali salt(NaCl and KCl)substrates via chemical vapor deposition(CVD).Structural characterizations demonstrate that the as-grown PbS films exhibit an atomically sharp interface with the underlying substrates.The epitaxial relationships between the epilayers and substrates were determined to be PbS(100)//NaCl(100)or KCl(100),PbS[010]//NaCl[010]or KCl[010].Owing to the high solubility of alkali salt,the epitaxial PbS films can be rapidly released from the underlying substrates and transferred to other substrates of interest while maintaining good integrity and crystallinity,the process of which is particularly attractive in the fields of electronics and optoelectronics.Furthermore,photodetectors based on the transferred PbS films were fabricated,exhibiting a high photoresponsivity of 7.5 A/W,a detectivity of 1.44×10^(12)Jones,and a rapid response time of approximately 0.25 s.This work sheds light on the batch production,green transfer,and optoelectronic application of PbS films.Yifan Wang Jing Xia Xuanze Li Fan Ru Xue Chen Ze Hua Ruiwen Shao Xuecong Wang Wenjun Zhang Chun-Sing Lee Xiangmin Meng 2022Nano Research2022,15,6:1
19Intelligent anti - swing control for bridge crane 显示文摘Z M Chen himei Meng Wenjun Zhang Jinggang 2012Central South University2012,19,10:1
20Hypoxia up-regulates vascular endothelial growth factor in U-87 MG cells: Involvement of TRPC1显示文摘Bin Wang Wenjun Li Xiaojing Meng Fei Zou 2009Neuroscience Letters2009,,3:1
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