|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Effect 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 | 2012 | Journal of Environmental Sciences2012，24，7： | 21 |
| 2 | Hot Mixing Behavior and Curing Process of Epoxy Asphalt显示文摘A new hot mixed epoxy asphalt system was developed. The reaction process of epoxy resin was characterized by Fourier transform infrared spectroscopy (FTIR). The viscosity was investigated by Brinell viscometer when epoxy resin was mixed with asphalt. The glass transition temperature (Tg), homogeneity, thermal stability and viscoelasticity of epoxy asphalt were analyzed by differential scanning calorimetry (DSC), metallographic microscope, thermogravimetric (TG) and dynamic mechanical analysis (DMA). The results showed that the viscosity of epoxy resin modified asphalt reached 1000 mPa·s for more than 180 minutes at 180 ℃, while the best construction process is mixing at 180 ℃ for 2 hours and curing at 60 ℃ for 4 days. The particle size of asphalt is less than 50 μm. In addition, the mechanical properties of the materials are uniform within the specified pavement thickness. | 李华伟 WEI Wei ZHANG Chao XU Feifan LI Xin JING Peng 朱泉峣 DING Qingjun YAN Boxiang | 2020 | Journal of Wuhan University of Technology(Materials Science)2020，35，3： | 3 |
| 3 | Joint 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 | 2019 | China Communications2019，16，11： | 3 |
| 4 | MULTI-SHOP SCHEDULING PROBLEM显示文摘A new concept of multi-shop (M ) is put forward which contains all basic shops including open shop (O), job shop (J ), flow shop (F ) and hybrid flow shop (H ) so that these basic shop can be scheduled together. Several algorithms including ant colony optimization (ACO), most work remaining (MWR), least work remaining (LWR), longest processing time (LPT) and shortest processing time (SPT) are used for scheduling the M. Numerical experiments of the M adopting data of some car and reC series benchmark instances are tested. The results show that the ACO algorithm has better performance for scheduling the M than the other algorithms, if minimizing the makespan ( C m*ax) is taken as the objective function. As a comparison, the separate shops contained in the M are also scheduled by the ACO algorithm for the same objective function, when the completing time of the jobs in the previous shop is taken as the ready time of these jobs in the following shop. The results show that the M has the advantage of shortening the makespan upon separate shops. | HU Yanhai YAN Junqi MA Dengzhe YE Feifan ZHANG Jie | 2007 | Chinese Journal of Mechanical Engineering2007，20，3： | 2 |
| 5 | Characterization of a bacterial strain capable of degrading DDT congeners and its use in bioremediation of contaminated soil显示文摘 | Hua Fang Bin Dong Hu Yan Feifan Tang Yunlong Yu | 2010 | Journal of Hazardous Materials2010，，1： | 1 |
| 6 | Antagonistic 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 | 2022 | Asian Agricultural Research2022，14，5： | 1 |
| 7 | Regulation 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 | 2011 | Journal of Integrative Plant Biology2011，53，1： | 1 |
| 8 | On Electrorheological Effect Instantaneous Tiny Grinding Wheel for Fine Machining显示文摘 | Bi Feifan Yan Qiusheng | 2006 | Key Engineering Materials2006，，： | 1 |
| 9 | Performance Evaluation of Electro-rheological Fluid and Its Applications to Micro-parts Fine-machining显示文摘 | Yan Qiusheng Bi Feifan Wu Naiqi | 2006 | Key Engineering Materials2006，，： | 1 |
| 10 | Bioleaching of realgar by Acidithiobacillus ferrooxidans using ferrous iron and elemental sulfur as the sole and mixed energy sources显示文摘 | Chen Peng Yan Lei Leng Feifan | | 0，，03： | 1 |
| 11 | Bioleaching of realgar by Acidithiobacillus ferrooxidans using ferrous iron and elemental sulfur as the sole and mixed energy sources显示文摘 | Peng Chen Lei Yan Feifan Leng Wenbing Nan Xiaoxuan Yue Yani Zheng Na Feng Hongyu Li | 2010 | Bioresource Technology2010，，3： | 1 |
| 12 | Bioleaching of realgar by Acidithiobacillus ferrooxidans using ferrous iron and elemental sulfur as the sole and mixed energy sources显示文摘 | Peng Chen Lei Yan Feifan Leng Wenbing Nan Xiaoxuan Yue Yani Zheng Na Feng Hongyu Li | 2010 | Bioresource Technology2010，，3： | 1 |
| 13 | Biosorption of inorganic and organic arsenic from aqueous solution by Acidithiobacillus ferrooxidans BY-3显示文摘 | Lei Yan Huanhuan Yin Shuang Zhang Feifan Leng Wenbin Nan Hongyu Li | 2010 | Journal of Hazardous Materials2010，，1： | 1 |
| 14 | Mid-infrared all-optical modulators based on an acetylene-filled hollow-core fiber显示文摘We report all-optical mid-infrared phase and intensity modulators based on the photo-thermal effect in an acetylene-filled anti-resonant hollow-core fiber.Optical absorption of the control beam promotes the gas molecules to a higher energy level,which induces localized heating through non-radiative relaxation and modulates the refractive index of the gas material and hence the accumulated phase of the signal beam propagating through the hollow-core fiber.By modulating the intensity of the control beam,the phase of the signal beam is modulated accordingly.By use of a 1.53μm near-infrared control beam,all-optical phase modulation up to 2.2πrad is experimentally demonstrated at the signal wavelength of 3.35μm.With the phase modulator placed in one arm of a Mach-Zehnder interferometer,intensity modulation with on-off ratio of 25 dB is achieved.The gas-filled hollow-core-fiber modulators could operate over an ultra-broad wavelength band from near-to mid-infrared and have promising application in mid-infrared photonic systems. | Kaiyuan Zheng Shoulin Jiang Feifan Chen Yan Zhao Shoufei Gao Yingying Wang Hoi Lut Ho Wei Jin | 2022 | Light(Advanced Manufacturing)2022，3，4： | 0 |
| 15 | Near-real-time global gridded daily CO_(2) emissions显示文摘Precise and high-resolution carbon dioxide(CO_(2))emission data is of great importance in achieving carbon neutrality around the world.Here we present for the first time the near-real-time Global Gridded Daily CO_(2)Emissions Dataset(GRACED)from fossil fuel and cement production with a global spatial resolution of 0.1°by 0.1°and a temporal resolution of 1 day.Gridded fossil emissions are computed for different sectors based on the daily national CO_(2)emissions from near-real-time dataset(Carbon Monitor),the spatial patterns of point source emission dataset Global Energy Infrastructure Emissions Database(GID),Emission Database for Global Atmospheric Research(EDGAR),and spatiotemporal patters of satellite nitrogen dioxide(NO2)retrievals.Our study on the global CO_(2)emissions responds to the growing and urgent need for high-quality,fine-grained,near-real-time CO_(2)emissions estimates to support global emissions monitoring across various spatial scales.Weshow the spatial patterns of emission changes for power,industry,residential consumption,ground transportation,domestic and international aviation,and international shipping sectors from January 1,2019,to December 31,2020.This gives thorough insights into the relative contributions from each sector.Furthermore,it provides the most up-to-date and fine-grained overview of where and when fossil CO_(2)emissions have decreased and rebounded in response to emergencies(e.g.,coronavirus disease 2019[COVID-19])and other disturbances of human activities of any previously published dataset.As the world recovers from the pandemic and decarbonizes its energy systems,regular updates of this dataset will enable policymakers to more closely monitor the effectiveness of climate and energy policies and quickly adapt. | Xinyu Dou Yilong Wang Philippe Ciais Frédéric Chevallier Steven J.Davis Monica Crippa Greet Janssens-Maenhout Diego Guizzardi Efisio Solazzo Feifan Yan Da Huo Bo Zheng Biqing Zhu Duo Cui Piyu Ke Taochun Sun Hengqi Wang Qiang Zhang Pierre Gentine Zhu Deng Zhu Liu | 2022 | The Innovation2022，3，1： | 0 |
| 16 | Broadband all-fiber optical phase modulator based on photo-thermal effect in a gas-filled hollow-core fiber显示文摘We report broadband all-fiber optical phase modulation based on the photo-thermal effect in a gas-filled hollow-core fiber.The phase modulation dynamics are studied by multi-physics simulation.A phase modulator is fabricated using a 5.6-cm-long anti-resonant hollow-core fiber with pure acetylene filling.It has a half-wave optical power of 289 mW at 100 kHz and an average insertion loss 0.6 dB over a broad wavelength range from 1450 to 1650 nm.The rise and fall time constants are 3.5 and 3.7μs,respectively,2–3 orders of magnitude better than the previously reported microfiber-based photo-thermal phase modulators.The gas-filled hollow-core waveguide configuration is promising for optical phase modulation from ultraviolet to mid-infrared which is challenging to achieve with solid optical fibers. | Shoulin Jiang Feifan Chen Yan Zhao Shoufei Gao Yingying Wang Hoi Lut Ho Wei Jin | 2023 | Opto-Electronic Advances2023，6，5： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员