|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | An insight into the removal of fluoroquinolones in activated sludge process:Sorption and biodegradation characteristics显示文摘The detailed sorption steps and biodegradation characteristics of fluoroquinolones(FQs)including ciprofloxacin, enrofloxacin, lomefloxacin, norfloxacin, and ofloxacin were investigated through batch experiments. The results indicate that FQs at a total concentration of 500 μg/L caused little inhibition of sludge bioactivity. Sorption was the primary removal pathway of FQs in the activated sludge process, followed by biodegradation, while hydrolysis and volatilization were negligible. FQ sorption on activated sludge was a reversible process governed by surface reaction. Henry and Freundlich models could describe the FQ sorption isotherms well in the concentration range of 100–300 μg/L. Thermodynamic parameters revealed that FQ sorption on activated sludge is spontaneous, exothermic, and enthalpy-driven. Hydrophobicity-independent mechanisms determined the FQ sorption affinity with activated sludge. The zwitterion of FQs had the strongest sorption affinity, followed by cation and anion, and aerobic condition facilitated FQ sorption. FQs were slowly biodegradable, with long half-lives(> 100 hr). FQ biodegradation was enhanced with increasing temperature and under aerobic condition,and thus was possibly achieved through co-metabolism during nitrification. This study provides an insight into the removal kinetics and mechanism of FQs in the activated sludge process, but also helps assess the environmental risks of FQs resulting from sludge disposal. | Lu Wang Zhimin Qiang Yangang Li Weiwei Ben | 2017 | Journal of Environmental Sciences2017，29，6： | 18 |
| 2 | Performance of 3D TPN against true-arbitrarily maneuvering target for exoatmospheric interception显示文摘True proportional navigation(TPN) guidance law is widely used for exoatmospheric interception, for its robustness and ease of implementation. The performance of TPN against nonmaneuvering target or the maneuvering target with a specific acceleration had been analyzed before. However, the obtained results are not suitable for the realistic exoatmospheric interception scenario,since the target may maneuver along an arbitrary direction with an arbitrary but upper-bounded acceleration in the threedimensional(3 D) space, which is the so-called 'true-arbitrarily maneuvering target' in this paper. With the help of the line-ofsight(LOS) rotation coordinate system, the performance of 3 D TPN against the true-arbitrarily maneuvering target is thoroughly analyzed using the Lyapunov-like approach. The upper-bound of the 3 D LOS rate is obtained, and so is that of the commanded acceleration of 3 D TPN. After that, the capture region of 3 D TPN is presented on the initial relative velocity plane. The nonlinear3 D relative kinematics between the interceptor and the target is taken into full account. Finally, the new theoretical findings are demonstrated by numerical simulations. | LI KeBo LIANG YanGang SU WenShan CHEN Lei | 2018 | Science China(Technological Sciences)2018，61，8： | 9 |
| 3 | Reservoir accumulation conditions and key exploration&development technologies for Keshen gas field in Tarim Basin显示文摘The Keshen gas field is located in the central part of Kuqa foreland thrust belt in Tarim Basin,and is another large gas field discovered in Kuqa depression after Kela 2 gas field.Since the breakthrough in 2008,a number of large and medium scale gas reservoirs including Keshen 2,Keshen 5 and Keshen 8 have been discovered,that are characterized by ultra depth,ultra-high pressure,ultra-low porosity,ultra-low permeability,high temperature and high pressure.With natural gas geological reserves of nearly trillion cubic meters and production capacity of nearly 5.5 billion cubic meters,the Keshen gas field is the main natural gas producing area in Tarim Oilfield.The Keshen gas field is located in a series of thrusting imbrication structures in the Kelasu structural belt of Kuqa foreland thrust belt.The salt roof structure,plastic rheology of salt beds and pre-salt faulted anticlinal structure constitute the large wedge-shaped thrust body.The thick delta sandstone of the Cretaceous Bashijike Formation is widely distributed,and it forms the superior reservoir-caprock combination with overlying Paleogene thick gypsum-salt bed.The deep Jurassic-Triassic oil and gas migrate vertically along fault system formed in Late Himalaya,break through the thick Cretaceous mudstone and move laterally along the fracture system of the pre-salt reservoirs,to form anticline and fault anticline high pressure reservoir groups.Through near ten years of studies,the three-dimensional seismic acquisition and processing technology for complex mountainous areas,extrusion salt-related structural modeling technology and fractured low-porosity sandstone reservoir evaluation technology have been established,which lay a foundation for realization of oil and gas exploration objectives.Logging acquisition and evaluation technology for high temperature,high pressure,ultra-deep and low-porosity sandstone gas reservoirs,and efficient development technology for fractured tight sandstone gas reservoirs have been developed,which provide a technical support for efficient exploration&development and rapid production of the Keshen gas field. | Haijun Yang Yong Li Yangang Tang Ganglin Lei Xiongwei Sun Peng Zhou Lu Zhou Anming Xu Jingjie Tang Wenhui Zhu Jiangwei Shang Weili Chen Mei Li | 2019 | Petroleum Research2019，4，4： | 3 |
| 4 | Controllable Hydrothermal Synthesis and Properties of ZnO Hierarchical Micro/Nanostructures显示文摘A simple hydrothermal route has been developed for the fabricating Zn O hierarchical micro/nanostructure with excellent reproducibility. SEM and TEM analysis show that the hierarchical rod is a single-crystal, suggesting that many single-crystal micro/nanorods are assembled into Zn O hierarchical micro/nanostructures. The morphologies of the hierarchical rods can be conveniently tailored by changing the reaction parameters. And we also found citric acid plays a crucial role in the formation process of Zn O micro/nanostructures. Room-temperature photoluminescence spectra reveals that the Zn O hierarchical micro/nanostructures have a strong emission peak at 440 nm and several weak emission peaks at 420, 471 and541 nm, respectively. | Weifei Li Yangang Sun Jingli Xu | 2012 | Nano-Micro Letters2012，4，2： | 2 |
| 5 | Dual-periodic-microstructure-induced color tunable white organic Ught-emitting devices显示文摘 | Yangang BI Jinhai JI Yang CHEN Yushan LIU Xulin ZHANG Yunfei LI Ming XU Yuefeng LIU Xiaochi HAN Qiang GAO Hongbo SUN | 2016 | Frontiers of Optoelectronics2016，9，2： | 2 |
| 6 | Analysis of the characteristics of offshore currents in the Changjiang(Yangtze River) estuarine waters based on buoy observations显示文摘A buoy of 10 m in diameter was used to record the current speed and direction in a vertical profile in the offshore area of the Changjiang(Yangtze River) Estuary(with an average water depth of 46.0 m) for one year.The results include:(1) the currents rotate clockwise and the current direction is consistent in a vertical profile without clear seasonal variations.(2) The horizontal current speeds are generally high,with a maximum of 128.5 cm/s occurring in summer and 105.5 cm/s appearing in winter commonly close to the surface.The average current speeds in the vertical profile fall in the same range(the differences are less than 8.0 cm/s),with the maximum of47.0 cm/s occurring in summer and 40.8 cm/s in winter.The average current speed during spring tides is twice that during neap tides(26.5 cm/s).(3) Significant differences of speeds are observed in the vertical profile.The maximum current speed occurs at either surface(spring and winter) or sub-surface(summer and autumn),with the minimum current speed appearing at the bottom.The maximum average current speed of all layers is 57.9cm/s,which occurs in the 18-m layer during summer.(4) The average speed of the residual currents ranges from7.5 cm/s to 11.3 cm/s,with the strongest occurring in spring and weakest in winter.The residual currents of all layers are eastward during spring and winter,whereas northeastward or northward during summer and autumn.(5) The currents in the offshore of Changjiang Estuary are impacted collectively by diluted Changjiang River discharge,the Taiwan Warm Current,monsoon and tides. | LI Peng SHI Benwei WANG Yaping QIN Weihua LI Yangang CHEN Jian | 2017 | Acta Oceanologica Sinica2017，36，4： | 2 |
| 7 | Several boundary identification methods of gravity data and application in Vientiane of Laos area显示文摘The authors studied the potential field boundary identification of the new technology in order to find out the possible fractures or contact zones using the following methods such as tilt derivative,horizontal derivative of tilt derivative,normalized standard deviation and normalized differential method. Combined with Euler deconvolution and small subdomain filtering,the actual data processing results show that these methods are all able to identify wider range extending fractures and obtain abundant geological information. The horizontal derivative of tilt derivative and normalized differential method have a better resolution for the small cutting fractures and lacunae in the studied area. They provide a reliable basis for study of the cutting relationship between fractures. | LI Lin WU Yangang YANG Changbao HUAN Hengfei GUO Cancan | 2014 | Global Geology2014，17，1： | 2 |
| 8 | Design and numerical investigation of swirl recovery vanes for the Fokker 29 propeller显示文摘Swirl recovery vanes(SRVs) are a set of stationary vanes located downstream from a propeller, which may recover some of the residual swirl from the propeller, hoping for an improvement in both thrust and efficiency. The SRV concept design for a scaled version representing the Fokker 29 propeller is performed in this paper, which may give rise to a promotion in propulsive performance of this traditional propeller. Firstly the numerical strategy is validated from two aspects of global quantities and the local flow field of the propeller compared with experimental data, and then the exit flow together with the development of propeller wake is analyzed in detail.Three kinds of SRV are designed with multiple circular airfoils. The numerical results show that the swirl behind the propeller is recovered significantly with Model V3, which is characterized by the highest solidity along spanwise, for various working conditions, and the combination of rotor and vane produced 5.76% extra thrust at the design point. However, a lower efficiency is observed asking for a better vane design and the choice of a working point. The vane position is studied which shows that there is an optimum range for higher thrust and efficiency. | Wang Yangang Li Qingxi G.Eitelberg L.L.M.Veldhuis M.Kotsonis | 2014 | Chinese Journal of Aeronautics2014，27，5： | 2 |
| 9 | Preparation and electrochemical properties of Ca-doped Li 4 Ti 5 O 12 as anode materials in lithium-ion battery显示文摘 | Qianyu Zhang Chengli Zhang Bo Li Shifei Kang Xi Li Yangang Wang | 2013 | Electrochimica Acta2013，，： | 1 |
| 10 | Synthesis and characterization of N-benzoyl-N′-carboxyalkyl substituted thiourea derivatives显示文摘 | Li Zhonghua Zhang yan Wang Yangang | 2003 | Phosphorus Sulfur and Silicon2003，178，2： | 1 |
| 11 | The effect of surface modification of LaNi 5 hydrogen storage alloy with CuCl on its electrochemical performances显示文摘 | Guizhi Kuang Yangang Li Fei Ren Meng Hu Lixu Lei | 2014 | Journal of Alloys and Compounds2014，，： | 1 |
| 12 | An investigation of tip vortices unsteady interaction for Fokker 29 propeller with swirl recovery vane显示文摘A numerical study was performed to explore the unsteady interaction between the upstream propeller and the downstream swirl recovery vane(SRV) by transient simulations. Much larger fluctuations of thrust coefficient were observed on the vane, which indicates that the variations of the total efficiency depend mainly on the working performance of the stator. The harmonic loads of the decomposed unsteady blade-surface pressures show that the stator experiences about ten times higher of unsteadiness compared with the rotor. Notable changes appear at the vane leading edge due to the potential disturbance as well as the sweeping effects from the wake of the upstream propeller, whereas more significant unsteadiness occurs at the stator tip region as a result of the interaction between the rotor/stator tip vortices. The visualization of vortex structures addresses that the rotor tip vortex has a dominant effect on the stator tip vortex since the latter one starts right at the impingement location on the vane top in this configuration. Furthermore,a longer and a shorter SRV were investigated based on the original case to explore different interaction patterns for the rotor/stator tip vortices. Weaker effects have been observed as expected. | Li Qingxi Wang Yangang G.Eitelberg | 2016 | Chinese Journal of Aeronautics2016，29，1： | 1 |
| 13 | Honeycomb-like g-C_(3)N_(4)/CeO_(2)-x nanosheets obtained via one step hydrothermal-roasting for efficient and stable Cr(Ⅵ) photo-reduction显示文摘Graphitic carbon nitride(g-C_(3)N_(4))-based materials are regarded as one of the most potential photocatalysts for utilizing solar energy.In this work,we reported a facile one step in-situ hydrothermal-roasting method for preparing honeycomb-like g-C_(3)N_(4)/CeO_(2) nanosheets with abundant oxygen vacancies(g-C_(3)N_(4)/CeO_(2)-x).The hydrothermal-roasting and incomplete-sealed state can(i)generate an in-situ reducing atmosphere(CO,N2,NH3) to tune the concentration of oxygen vacancies in CeO_(2);(ii) beneficial to prevent continuous growth of g-C_(3)N_(4) and results in honeycomb-like g-C_(3)N_(4)/CeO_(2)-x hybrid nanosheets.What is more,the g-C_(3)N_(4)/CeO_(2)-x photocatalyst exhibited extended photoresponse range,increased specific surface area and obviously enhanced separation efficiency of photogenerated electron-hole pairs.As a proof-of-concept application,the optimized g-C_(3)N_(4)/CeO_(2)-xnanosheets could achieve 98% removal efficiency for Cr(Ⅵ) under visible light irradiation(λ≥420 nm)within 2.5 h,which is significantly better than those of pure g-C_(3)N_(4) and CeO_(2).This work provides a new idea for more rationally designing and constructing g-C_(3)N_(4)-based catalysts for efficient extended photochemical application. | Yanan Liu Zhangfeng Shen Jialing Song Huilan Qi Chaochuang Yin Xuhui Zou Qineng Xia Lifeng Cui Xi Li Yangang Wang | 2020 | Chinese Chemical Letters2020，31，10： | 1 |
| 14 | Characterization of longshore currents in southern East China Sea during summer and autumn显示文摘Current characteristics and vertical variations during summer and autumn in the southern East China Sea were investigated by measuring current profile, tide, wind, and wave data for 90 d from July 28 to October 25, 2015. Our results are:(1) The current was mainly a(clockwise) rotating flow, displaying reciprocating flow characteristics,and vertically the current directions were the same throughout the vertical profile.(2) The horizontal current speed was strongest during August(summer) with an average speed of 51.8 cm/s. The average current speeds during spring tides were highest in August and weakest in September, with speeds of 59.9 and 42.8 cm/s,respectively.(3) Considerable differences exist in average current speeds in different layers and seasons. The highest average current speeds were found in the middle–upper layers in August and in the middle–lower layers in September and October.(4) The residual current speed was highest in August, when the speed was 12.5–47.1 cm/s,whereas the vertical average current speed was 34.3 cm/s. The depth-averaged residual current speeds in September and October were only 50% of that in August, and the residual current direction gradually rotated in a counter-clockwise direction from the lower to surface layers.(5) Typhoon waves had a significant influence on the currents, and even affected the middle and lower water layers at depths of >70.0 m. Our results showed that the currents are controlled by the dynamic interplay of the Taiwan Warm Current, incursion of the Kuroshio Current onto the continental shelf, and monsoonal changes. | Peng Li Benwei Shi Yangang Li Sijian Wang Xin Lv Yaping Wang Qing Tian | 2020 | Acta Oceanologica Sinica2020，39，3： | 1 |
| 15 | Ni- trogen-rich salts based on the energetic anion:a promising design in the development of new energetic materials显示文摘 | Li Fugang Bi Yangang Zhao Wenyuan | 2015 | Inorganic Chemistry2015，54，4： | 1 |
| 16 | Application of gravity inversion focused in Changbai Mountain显示文摘Focusing inversion is accomplished by the iterative of abnormal source to make the image gradually focused. It can better reflect the underground geological geometry and physical parameters. The model experiments in the study show that gravity focusing inversion allows inversion image stabilization and polymerization,which solves the multiple solutions and instability of inversion and so on. The method is applied to measured gravity data processing of certain region of Changbai Mountain,compared to Euler deconvolution,the results show that the method for determining the horizontal position and depth of underground anomalies has good efforts. | LI Qiuchen WU Yangang | 2014 | Global Geology2014，17，1： | 1 |
| 17 | Precipitation polymerization of acrylamide with quaternary ammonium cationic monomer in potassium carbonate solution initiated by plasma显示文摘 | He Yangang Li Gang Yang Fang | 2007 | Journal of Applied Polymer Science2007，104，6： | 1 |
| 18 | Combined ultrasound and Fenton (US-Fenton) process for the treatment of ammunition wastewater显示文摘 | Yangang Li Wen-Pin Hsieh Rovshan Mahmudov Xiaomei Wei C.P. Huang | 2013 | Journal of Hazardous Materials2013，，： | 1 |
| 19 | Thermal Management of Electrified Propulsion System for Low-Carbon Vehicles显示文摘An overview of current thermal challenges in transport electrification is introduced in order to underpin the research developments and trends of recent thermal management techniques.Currently,explorations of intelligent thermal management and control strategies prevail among car manufacturers in the context of climate change and global warming impacts.Therefore,major cutting-edge systematic approaches in electrified powertrain are summarized in the first place.In particular,the important role of heating,ventilation and air-condition system(HVAC)is emphasised.The trends in developing efficient HVAC system for future electrified powertrain are analysed.Then electric machine efficiency is under spotlight which could be improved by introducing new thermal management techniques and strengthening the efforts of driveline integrations.The demanded integration efforts are expected to provide better value per volume,or more power output/torque per unit with smaller form factor.Driven by demands,major thermal issues of high-power density machines are raised including the comprehensive understanding of thermal path,and multiphysics challenges are addressed whilst embedding power electronic semiconductors,non-isotropic electromagnetic materials and thermal insulation materials.Last but not least,the present review has listed several typical cooling techniques such as liquid cooling jacket,impingement/spray cooling and immersion cooling that could be applied to facilitate the development of integrated electric machine,and a mechanic-electric-thermal holistic approach is suggested at early design phase.Conclusively,a brief summary of the emerging new cooling techniques is presented and the keys to a successful integration are concluded. | Bo Li Huang Kuo Xuehui Wang Yiyi Chen Yangang Wang David Gerada Sean Worall Ian Stone Yuying Yan | 2020 | Automotive Innovation2020，3，4： | 1 |
| 20 | Analysis of pollution in Dianchi Lake and consideration of its application in crop planting 显示文摘 | LIU Yanfang LI Yangang YANG Xiaohong | 2012 | Procedia Environmental Sciences2012，12，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员