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34篇 您的检索式:作者名="WANG Feifan"
    题名 作者 年代 出处 被引量
1Effect of vegetation of transgenic Bt rice lines and their straw amendment on soil enzymes, respiration, functional diversity and community structure of soil microorganisms under field conditions显示文摘With the development of transgenic crops, there is an increasing concern about the possible adverse effects of their vegetation and residues on soil environmental quality. This study was carried out to evaluate the possible effects of the vegetation of transgenic Bt rice lines Huachi B6 (HC) and TT51 (TT) followed by the return of their straw to the soil on soil enzymes (catalase, urease, neutral phosphatase and invertase), anaerobic respiration activity, microbial utilization of carbon substrates and community structure, under field conditions. The results indicated that the vegetation of the two transgenic rice lines (HC and TT) and return of their straw had few adverse effects on soil enzymes and anaerobic respiration activity compared to their parent and distant parent, although some transient differences were observed. The vegetation and subsequent straw amendment of Bt rice HC and TT did not appear to have a harmful effect on the richness, evenness and community structure of soil microorganisms. No different pattern of impact due to plant species was found between HC and TT. It could be concluded that the vegetation of transgenic Bt rice lines and the return of their straw as organic fertilizer may not alter soil microbe-mediated functions.Hua Fang Bin Dong Hu Yan Feifan Wang Baichuan Wang Yunlong Yu 2012Journal of Environmental Sciences2012,24,7:21
2ATF4 regulates lipid metabolism and thermogenesis显示文摘(ATF4 ) 激活抄写因素 4 被显示了在许多生理的过程起关键作用。然而,没有报告表明在 ATF4 和类脂化合物新陈代谢之间的一个直接连接。我们注意到 Atf4 缺乏的老鼠是瘦的,建议为在调整类脂化合物新陈代谢的 ATF4 的一个可能的角色。我们的当前的学习的目标是在类脂化合物新陈代谢调查 ATF4 的参与并且阐明内在的机制。用 Atf4 缺乏的老鼠的研究揭示了增加的精力开销,由氧消费测量了。这些鼠标也显示出增加在分解,解开的表示蛋白质 2 (UCP2 ) 并且在在白脂肪质的织物(WAT ) 的 lipogenic 基因的表示的尾 - 氧化基因和减少,建议增加的利用和丰满的酸的减少的合成分别地。UCP1 的表示, 2 和 3 也在棕色的脂肪质的织物(蝙蝠) 被增加,建议增加了生热作用。在蝙蝠的 UCP 的表示上的 ATF4 删除的效果建议增加的生热作用可以位于增加的精力开销下面。因此,我们的学习在调整类脂化合物新陈代谢和生热作用为 ATF4 识别可能的新功能。Chunxia Wang Zhiying Huang Ying Du Ying Cheng Shanghai Chen Feifan Guo 2010Cell Research2010,20,2:16
3Magnetic evidence for heavy metal pollution of topsoil in Shanghai, China显示文摘这研究介绍从土壤侧面的集中大小在 Baoshan 区域从可耕地和城市的公园收集了的磁性的危险性和重金属(Cu, Zn, Pb,和 Cr ) 获得的结果,上海的一个工业区域,中国。学习在土壤侧面在磁性的危险性和重金属集中并且在在磁性的危险性和重金属集中之间的关联上集中于垂直变化的调查。结果证明在土壤侧面的表面层的那磁性的改进与增加的重金属污染被联系。丰富因素(EF ) 和 Tomlinson 污染负担索引(PLI-EF ) 为在学习估计土壤侧面的重金属污染的水平被计算。在重金属内容,丰富因素(EF ) , Tomlinson 污染负担索引(PLI-CF ) ,修改 Tomlinson 污染负担索引(PLI-EF ) ,和磁性的危险性(c) 之间的重要积极关联重金属那么显示在学习区域的污染被连接到燃烧导出的微粒排出物。结果证实联合磁性的测量和重金属集中分析能为在城市的环境监视的土壤提供有用信息。然而,磁性的技术的使用应该被进一步的 geochemical 分析证实在这个学习区域的土壤侧面定位重金属污染边界。Guan WANG Yuan LIU Jiao CHEN Feifan REN Yuying CHEN Fangzhou YE Weiguo ZHANG 2018Frontiers of Earth Science2018,12,1:5
4Combined remediation of DDT congeners and cadmium in soil by Sphingobacterium sp.D-6 and Sedum alfredii Hance显示文摘Combined pollution of 1,1,1-trichloro-2,2-bis (4-chlorophenyl) ethane (DDT) and cadmium (Cd) in agricultural soils is of great concern because they present serious risk to food security and human health.In order to develop a cost-effective and safe method for the removal of DDTs and Cd in soil,combined remediation of DDTs and Cd in soil by Sphingobacterium sp.D-6 and the hyperaccumulator,Sedum alfredii Hance was investigated.After treatment for 210 days,the degradation half-lives of DDTs in soils treated by strain D-6 decreased by 8.1% to 68.0% compared with those in the controls.The inoculation of strain D-6 into soil decreased the uptake of DDTs by pak choi and S.alfredii.The shoots/roots ratios of S.alfredii for the Cd accumulation ranged from 12.32 to 21.75.The Cd concentration in soil decreased to 65.8%-71.8% for S.alfredii treatment and 14.1%-58.2% for S.alfredii and strain D-6 combined treatment,respectively,compared with that in the control.The population size of the DDTs-degrading strain,Simpson index (1/D) and soil respiratory rate decreased in the early stage of treatment and then gradually increased,ultimately recovering to or exceeding the initial level.The results indicated that synchronous incorporation of strain D-6 and S.alfredii into soil was found to significantly (p 0.05) enhance the degradation of DDTs in soil and the hyperaccumulation of Cd in S.alfredii.It was concluded that strain D-6 and S.alfredii could be used successfully to control DDTs and Cd in contaminated soil.Hua Fang Wei Zhou Zhengya Cao Feifan Tang Dandan Wang Kailin Liu Xiangwei Wu Xiao'e Yang Yongge Sun Yunlong Yu 2012Journal of Environmental Sciences2012,24,6:5
5Locating Parent Lightning Strokes of Sprites Observed over a Mesoscale Convective System in Shandong Province,China显示文摘In this paper, we report the location results for the parent lightning strokes of more than 30 red sprites observed over an asymmetric mesoscale convective system(MCS) on 30 July 2015 in Shandong Province, China, with a long-baseline lightning location network of very-low-frequency/low-frequency magnetic field sensors. The results show that almost all of these cloud-to-ground(CG) strokes are produced during the mature stage of the MCS, and are predominantly located in the trailing stratiform region, which is similar to analyses of sprite-productive MCSs in North America and Europe. Comparison between the location results for the sprite-producing CG strokes and those provided by the World Wide Lightning Location Network(WWLLN) indicates that the location accuracy of WWLLN for intense CG strokes in Shandong Province is typically within 10 km, which is consistent with the result based on analysis of 2838 sprite-producing CG strokes in the continental United States. Also, we analyze two cases where some minor lightning discharges in the parent flash of sprites can also be located, providing an approach to confine the thundercloud region tapped by the sprite-producing CG strokes.Anjing HUANG Gaopeng LU Hongbo ZHANG Feifan LIU Yanfeng FAN Baoyou ZHU Jing YANG Zhichao WANG 2018Advances in Atmospheric Sciences2018,35,11:5
6Deep Auto-encoded Clustering Algorithm for Community Detection in Complex Networks显示文摘The prevalence of deep learning has inspired innovations in numerous research fields including community detection, a cornerstone in the advancement of complex networks. We propose a novel community detection algorithm called the Deep auto-encoded clustering algorithm(DAC), in which unsupervised and sparse single autoencoders are trained and piled up one after another to embed key community information in a lowerdimensional representation, such that it can be handled easier by clustering strategies. Extensive comparison tests undertaken on synthetic and real world networks reveal two advantages of the proposed algorithm: on the one hand, DAC shows higher precision than the kmeans community detection method benefiting from the integration of sparsity constraints. On the other hand,DAC runs much faster than the spectral community detection algorithm based on the circumvention of the time-consuming eigenvalue decomposition procedure.WANG Feifan ZHANG Baihai CHAI Senchun 2019Chinese Journal of Electronics2019,28,3:5
7Joint Design of Coalition Formation and Semi-Blind Channel Estimation in Fog Radio Access Networks显示文摘Coordinated signal processing can obtain a huge transmission gain for Fog Radio Access Networks(F-RANs).However,integrating into large scale,it will lead to high computation complexity in channel estimation and spectral efficiency loss in transmission performance.Thus,a joint cluster formation and channel estimation scheme is proposed in this paper.Considering research remote radio heads(RRHs)centred serving scheme,a coalition game is formulated in order to maximize the spectral efficiency of cooperative RRHs under the conditions of balancing the data rate and the cost of channel estimation.As the cost influences to the necessary consumption of training length and estimation error.Particularly,an iterative semi-blind channel estimation and symbol detection approach is designed by expectation maximization algorithm,where the channel estimation process is initialized by subspace method with lower pilot length.Finally,the simulation results show that a stable cluster formation is established by our proposed coalition game method and it outperforms compared with full coordinated schemes.Zhifeng Wang Feifan Yang Shi Yan Saleemullah Memon Zhongyuan Zhao Chunjing Hu 2019China Communications2019,16,11:3
8High-efficiency green micro-LEDs with GaN tunnel junctions grown hybrid by PA-MBE and MOCVD显示文摘We fabricated p-i-n tunnel junction(TJ)contacts for hole injection on c-plane green micro-light-emitting diodes(micro-LEDs)by a hybrid growth approach using plasma-assisted molecular beam epitaxy(PA-MBE)and metal–organic chemical vapor deposition(MOCVD).The TJ was formed by an MBE-grown ultra-thin unintentionally doped In Ga N polarization layer and an n^(++)∕n^(+)-GaN layer on the activated p^(++)-Ga N layer prepared by MOCVD.This hybrid growth approach allowed for the realization of a steep doping interface and ultrathin depletion width for efficient inter-band tunneling.Compared to standard micro-LEDs,the TJ micro-LEDs showed a reduced device resistance,enhanced electroluminescence intensity,and a reduced efficiency droop.The size-independent J-V characteristics indicate that TJ could serve as an excellent current spreading layer.All these results demonstrated that hybrid TJ contacts contributed to the realization of high-performance micro-LEDs with long emission wavelengths.YAOZHENG WU BIN LIU FEIFAN XU YIMENG SANG TAO TAO ZILI XIE KE WANG XIANGQIAN XIU PENG CHEN DUNJUN CHEN HAI LU RONG ZHANG YOUDOU ZHENG 2021Photonics Research2021,9,9:2
9BnVIR:bridging the genotype-phenotype gap to accelerate mining of candidate variations underlying agronomic traits in Brassica napus显示文摘Dear Editor,Genetic variations,which range from single nucleotide polymor-phisms(SNPs)and short insertion/deletions(InDels)to large-scale structural variations(SVs),are the basis of phenotypic diversity.Understanding the effect of genetic variations on traits is critical for uncovering the genetic architecture of various phe-notypes.Zhiquan Yang Congyuan Liang LuLu Wei Shengbo Wang Feifan Yin Dongxu Liu Liang Guo Yongming Zhou Qing-Yong Yang 2022Molecular Plant2022,15,5:2
10Branched chain amino acids and metabolic regulation显示文摘Amino acids are fundamental nutrients required for protein synthesis. The branched chain amino acids (BCAAs) leucine, isoleucine, and valine are the most abundant of the essential amino acids. BCAAs have recently been recognized as having functions in processes other than simple nutrition. For example, metabolic diseases are characterized by higher levels of circulating BCAAs. Moreover, supplementation with or deficiency in BCAAs is closely related to the regulation of metabolic homeostasis. Indeed, leucine deprivation induces increased lipolysis and thermogenesis, which result in fat loss, as well as suppressed lipogenesis and enhanced insulin sensitivity in the liver. Accumulating evidence has indicated that several amino acid sensors, including GCN2, ATF4, mTOR, and AMPK, play pivotal roles in the regulation of lipid metabolism, glucose metabolism, and energy homeostasis. Furthermore, the hypothalamus is critical for sensing amino acid levels and mediates the metabolic adaptation of the body upon limitation of essential amino acids (EAAs) through regulating expression of the S6K1, MC4R, and CRH. In this review, we highlight recent studies investigating the cellular mechanisms linking amino acids, amino acid sensors, metabolic regulation, and metabolic diseases. Amino acid sensing and metabolic regulation have become research hotspots in the metabolic field.WANG ChunXia GUO FeiFan 2013Chinese Science Bulletin2013,58,11:2
11Triangulation of red sprites observed above a mesoscale convective system in North China显示文摘The triangulation of red sprites was obtained, based on concurrent observations over a mesoscale convective system(MCS) in North China from two stations separated by about 450 km. In addition, broadband sferics from the sprite-producing lightning were measured at five ground stations, making it possible to locate and identify the individual causative lightning discharges for different elements in this dancing sprite event. The results of our analyses indicate that the sprites were produced above the trailing stratiform region of the MCS, and their parent strokes were located mainly in the peripheral area of the stratiform. The lateral offset between sprites and causative strokes ranges from a few km to more than 50 km. In a particularly bright sprite, with a distinct halo feature and streamers descending down to an altitude of approximately 48 km, the sprite current signal identified in the electric sferic, measured at a range of about 1,110 km, peaked at approximately 1 ms after the return stroke.YongPing Wang GaoPeng Lu Ming Ma HongBo Zhang YanFeng Fan GuoJin Liu ZheRun Wan Yu Wang Kang-Ming Peng ChangZhi Peng FeiFan Liu BaoYou Zhu BinBin Ni XuDong Gu Long Chen Juan Yi RuoXian Zhou 2019Earth and Planetary Physics2019,3,2:2
12Change of Cytokines in Chronic Hepatitis B Patients and HBeAg are Positively Correlated with HBV RNA, Based on Real-world Study显示文摘Background and Aims:The natural course of chronic hepatitis B virus(HBV)infection is widely studied;however,follow-up studies of the same patients are scanty.Here,we studied the dynamic changes of serum HBV RNA and cytokines in hepatitis B virus e antigen(HBeAg)-positive patients treated with entecavir(ETV)to explore the relationship between the HBV serum viral nucleic acids and host immunity.Methods:Thirty-three chronic hepatitis B patients who are HBeAg-positive,with high virus load(HBV DNA>20,000 IU/mL),and received standard nucleos(t)ide analogue(NA)antiviral therapy(ETV)for more than 48 weeks were included.The serum levels of HBV nucleic acids and selected cytokines were measured at 0,12,24,and 48 weeks respectively.Results:Serum HBV RNA could still be detected while serum HBV DNA had fallen below the detection limit in patients treated with ETV.There was a strong positive correlation between HBV RNA and HBeAg,with a concomitant decrease in the secretion of cytokines from type 1 helper T(Th1)/type 2 helper T(Th2)/interleukin(IL)-17 producing T(Th17)cells.IL-4 and IL-10 were the main cytokines negatively associated with serum HBV RNA.Conclusions:HBeAg can be used to reflect the load of HBV RNA indirectly,because serum HBV RNA has not been widely used in clinical practice.Meanwhile,serum IL-4 and IL-10 might be explored in combination with HBV RNA in guiding future clinical antiviral therapy.Qiqi Zhang Hui Huang Aijun Sun Chunyan Liu Zhidong Wang Feifan Shi Wei Duan Xueying Sun Qi Wang Ping Sun Chunwen Pu Yong Zhang 2022Journal of Clinical and Translational Hepatology2022,10,3:1
13High-Efficiency Wastewater Purification System Based on Coupled Photoelectric–Catalytic Action Provided by Triboelectric Nanogenerator显示文摘It is of great importance to explore a creative route to improve the degradation e ciency of organic pollutants in wastewater.Herein,we construct a unique hybrid system by combining self-powered triboelectric nanogenerator(TENG)with carbon dots-TiO_(2)sheets doped three-dimensional graphene oxide photocatalyst(3 DGA@CDs-TNs),which can significantly enhance the degradation e ciency of brilliant green(BG)and direct blue 5 B(DB)owing to the powerful interaction of TENG and 3 DGA@CDs-TNs photocatalyst.The power output of TENG can be applied for wastewater purification directly,which exhibits a selfpowered electrocatalytic technology.Furthermore,the results also verify that TENG can replace conventional electric catalyst to remove pollutants e ectively from wastewater without any consumption.Subsequently,the unstable fragments and the plausible removal pathways of the two pollutants are proposed.Our work sheds light on the development of e cient and sustainable TENG/photocatalyst system,opening up new opportunities and possibilities for comprehensive utilization of random energy.Shen Shen Jiajia Fu Jia Yi Liyun Ma Feifan Sheng Chengyu Li Tingting Wang Chuan Ning Hongbo Wang Kai Dong Zhong Lin Wang 2021Nano-Micro Letters2021,13,12:1
14Antagonistic Effects of Sphingomonas and Pseudomonas aeruginosa on 4 Kinds of Pathogenic Bacteria of Ginseng显示文摘[Objectives]To explore effective biocontrol methods for diseases in the process of ginseng cultivation,and develop an efficient and environmentally friendly biocontrol agent.[Methods]In this study,2 strains were isolated from biogas slurry,and Cylindrocarpon destructans(XF),Fusarium solani(GF),Botrytis cinerea Pers(HM)and Alternaria panax Whetz(HB)were used as test materials.The strains were isolated and identified by dilution plate method,16S rDNA sequence identification method,confrontation culture method,filter paper method and ultraviolet spectrophotometer method,and the bacteriostatic activity and bacteriostatic rate were tested.[Results]Strain 15(Sphingomonas)and strain 19(Pseudomonas aeruginosa)were screened out through identification and analysis,and they grew stably within 8-10 d.The bacteriostatic rates of strain 15 against A.panax and B.cinerea were 47.37%and 43.40%,respectively,and the bacteriostatic rates of strain 19 against A.panax and B.cinerea were 62.30%and 63.27%,respectively.The bacteriostatic activity of the extract of strain 19 increased with the increase of OD_(600) value,and the bacteriostatic effect was optimal when the OD_(600) value was in the range of 0.8-1.0,up to 70%,so it had a strong biocontrol potential.[Conclusions]This experiment provides convenience for more effective inoculation,establishes a fast,simple and accurate method for the determination of the best bacteriostatic rate of P.aeruginosa culture solution to HM,and lays a foundation for large-scale culture of P.aeruginosa culture solution.Besides,it is expected to provide a theoretical basis for the efficient control of ginseng B.cinerea in field production,use it for the prevention and control of ginseng shoot diseases,and provide a reference for the efficient and diverse development of biocontrol agents for ginseng shoot diseases.Hairu YU Feifan YAN Yunlong WANG Xinying TONG Di CHEN Qiang YE Renzhe PIAO Hongyan ZHAO 2022Asian Agricultural Research2022,14,5:1
15Nanoscale all-optical logic devices显示文摘Commercial computers based on electronic logic devices have brought great changes to the world. However, traditional electronic devices are suffering from numerous technical challenges in their attempts to continue to satisfy Moore's law. Alloptical logic devices, as promising successors to their electronic counterparts, have become a major focus of optics research. In this paper, we provide a review of current all-optical logic devices. The logic gates in these devices, which are described in the first part of the review, are divided into five categories based on the different principles used in their realization. Complex optical devices with various functions and reconfigurable devices are summarized in the next section. In the final part of this paper, we discuss some of the previous works on all-optical integrated chips with specific functions. This review will provide a complete technological roadmap for all-optical devices and aims to be helpful in possible future developments in this growing field.Ye Chen YinKe Cheng RongBin Zhu FeiFan Wang HaoTian Cheng ZhenHuan Liu ChongXiao Fan YuXuan Xue ZhongCheng Yu JianKun Zhu XiaoYong Hu QiHuang Gong 2019Science China(Physics,Mechanics & Astronomy)2019,62,4:1
16A method for identifying the sensitive areas in targeted observations for tropical cyclone prediction: Conditional nonlinear optimal perturbation 显示文摘Mu Mu Zhou Feifan Wang Hongli 2009Monthly Weather Review2009,137,:1
17Regulation of Thermogenesis in Plants:The Interaction of Alternative Oxidase and Plant Uncoupling Mitochondrial Protein显示文摘Thermogenesis is a process of heat production in living organisms.It is rare in plants,but it does occur in some species of angiosperm.The heat is generated via plant mitochondrial respiration.As possible involvement in thermogenesis of mitochondrial factors,alternative ox-idases(AOXs) and plant uncoupling mitochondrial proteins(PUMPs) have been well studied.AOXs and PUMPs are ubiquitously present in the inner membrane of plant mitochondria.They serve as two major energy dissipation systems that balance mitochondrial respiration and uncoupled phosphorylation by dissipating the H+ redox energy and proton electrochemical gradient(μH+) as heat,respectively.AOXs and PUMPs exert similar physiological functions during homeothermic heat production in thermogenic plants.AOXs have five isoforms,while PUMPs have six.Both AOXs and PUMPs are encoded by small nuclear multigene families.Multiple isoforms are expressed in different tissues or organs.Extensive studies have been done in the area of thermogenesis in higher plants.In this review,we focus on the involvement and regulation of AOXs and PUMPs in thermogenesis.Yan Zhu Jianfei Lu Jing Wang Fu Chen Feifan Leng Hongyu Li 2011Journal of Integrative Plant Biology2011,53,1:1
18New clues to jet launching: The inner disks in radio loud quasars may be more stable显示文摘Jet launching in radio loud(RL) quasars is one of the fundamental problems in astrophysics. Exploring the differences in the inner accretion disk properties between RL and radio quiet(RQ) quasars might yield helpful clues to this puzzle. We previously discovered that the shorter term UV/optical variations of quasars are bluer than the longer term ones, i.e., the so-called timescaledependent color variation. This is consistent with the scheme that the faster variations come from the inner and hotter disk regions,thus providing a useful tool to map the accretion disk which is otherwise unresolvable. In this work we compare the UV/optical variations of RL quasars in SDSS Stripe 82 to those of several RQ samples, including those matched in redshift-luminosity-black hole mass and/or color-magnitude. We find that while both RL and RQ populations appear bluer when they brighten, RL quasars potentially show a weaker/flatter dependence on timescale in their color variation. We further find that while both RL and RQ populations on average show similar variation amplitudes at long timescales, fast variations of RL sources appear weaker/smaller(at timescales of ~25-300 d in the observer's frame), and the difference is more prominent in the g-band than in the r-band.Inhomogeneous disk simulations can qualitatively reproduce these observed differences if the inner accretion disk of RL quasars fluctuates less based on simple toy models. Though the implications are likely model dependent, the discovery points to an interesting diagram that magnetic fields in RL quasars may be prospectively stronger and play a key role in both jet launching and the stabilization of the inner accretion disk.ZhenYi Cai YuHan Sun JunXian Wang FeiFan Zhu WeiMin Gu Feng Yuan 2019Science China(Physics,Mechanics & Astronomy)2019,62,6:1
19Modeling of continuous drive friction welding of mild steel显示文摘Wenya Li Feifan Wang 2011Materials Science & Engineering A2011,,18:1
20The Bochner-type formula and the first eigenvalue of the sub- Laplacian on a contact Riemannian manifold显示文摘Wu Feifan Wang Wei 2014Differ Geom Appl2014,37,:1
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