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| 1 | Enhancing plant-microbe associated bioremediation of phenanthrene and pyrene contaminated soil by SDBS-Tween 80 mixed surfactants显示文摘The use of surfactants to enhance plant-microbe associated dissipation in soils contaminated with polycyclic aromatic hydrocarbons(PAHs) is a promising bioremediation technology. This comparative study was conducted on the effects of plant-microbe treatment on the removal of phenanthrene and pyrene from contaminated soil, in the presence of low concentration single anionic, nonionic and anionic-nonionic mixed surfactants. Sodium dodecyl benzene sulfonate(SDBS) and Tween 80 were chosen as representative anionic and nonionic surfactants, respectively. We found that mixed surfactants with concentrations less than 150 mg/kg were more effective in promoting plant-microbe associated bioremediation than the same amount of single surfactants. Only about(m/m) of mixed surfactants was needed to remove the same amount of phenanthrene and pyrene from either the planted or unplanted soils, when compared to Tween 80. Mixed surfactants(< 150 mg/kg) better enhanced the degradation efficiency of phenanthrene and pyrene via microbe or plant-microbe routes in the soils. In the concentration range of 60–150 mg/kg, both ryegrass roots and shoots could accumulate 2–3 times the phenanthrene and pyrene with mixed surfactants than with Tween 80. These results may be explained by the lower sorption loss and reduced interfacial tension of mixed surfactants relative to Tween 80, which enhanced the bioavailability of PAHs in soil and the microbial degradation efficiency. The higher remediation efficiency of low dosage SDBS-Tween 80 mixed surfactants thus advanced the technology of surfactant-enhanced plant-microbe associated bioremediation. | Hewei Ni Wenjun Zhou Lizhong Zhu | 2014 | Journal of Environmental Sciences2014，26，5： | 17 |
| 2 | Corrosion mechanism of micro-arc oxidation treated biocompatible AZ31 magnesium alloy in simulated body fluid显示文摘The rapid degradation of magnesium(Mg) based alloys has prevented their further use in orthopedic trauma fixation and vascular intervention,and therefore it is essential to investigate the corrosion mechanism for improving the corrosion resistance of these alloys. In this work, the effect of applied voltage on the surface morphology and the corrosion behavior of micro-arc oxidation(MAO) with different voltages were carried out to obtain biocompatible ceramic coatings on AZ31 Mg alloy. The effects of applied voltage on the surface morphology and the corrosion behavior of MAO samples in the simulated body fluid(SBF) were studied systematically. Scanning electron microscope(SEM) and X-ray diffractometer(XRD)were employed to characterize the morphologies and phase compositions of coating before and after corrosion. The results showed that corrosion resistance of the MAO coating obtained at 250 V was better than the others in SBF. The dense layer of MAO coating and the corrosion precipitation were the key factors for corrosion behavior. The corrosion of precipitation Mg(OH)2and the calcium phosphate(Ca–P) minerals on the surface of MAO coatings could enhance their corrosion resistance effectively. In addition, the mechanism of MAO coated Mg alloys was proposed. | Ying Li Fang Lu Honglong Li Wenjun Zhu Haobo Pan Guoxin Tan Yonghua Lao Chengyun Ning Guoxin Ni | 2014 | Progress in Natural Science:Materials International2014，24，5： | 7 |
| 3 | A preliminary analysis of the surface chemistry of atmospheric aerosol particles in a typical urban area of Beijing显示文摘Atmospheric aerosol particle samples were collected using an Ambient Eight Stage(Non-Viable) Cascade Impactor Sampler in a typical urban area of Beijing from 27 th Sep.to 5th Oct.,2009.The surface chemistry of these aerosol particles was analyzed using Static Time of Flight-Secondary Ion Mass Spectrometry(Static TOF-SIMS).The factors influencing surface compositions were evaluated in conjunction with the air pollution levels,meteorological factors,and air mass transport for the sampling period.The results show that a variety of organic ion groups and inorganic ions/ion groups were accumulated on the surfaces of aerosol particles in urban areas of Beijing;and hydrophobic organic compounds with short-or middle-chain alkyl as well as hydrophilic secondary inorganic compounds were observed.All these compounds have the potential to affect the atmospheric behavior of urban aerosol particles.PM1.1–2.1and PM3.3–4.7had similar elements on their surfaces,but some molecules and ionic groups demonstrated differences in Time of Flight-Secondary Ion Mass Spectrometry spectra.This suggests that the quantities of elements varied between PM1.1–2.1and PM3.3–4.7.In particular,more intense research efforts into fluoride pollution are required,because the fluorides on aerosol surfaces have the potential to harm human health.The levels of air pollution had the most significant influence on the surface compositions of aerosol particles in our study.Hence,heavier air pollution was associated with more complex surface compositions on aerosol particles.In addition,wind,rainfall,and air masses from the south also greatly influenced the surface compositions of these urban aerosol particles. | Zhengzheng Zhang Hong Li Hongyan Liu Runxiang Ni Jinjuan Li Liqun Deng Defeng Lu Xueli Cheng Pengli Duan Wenjun Li | 2016 | Journal of Environmental Sciences2016，28，9： | 5 |
| 4 | Real-time dynamics of soliton triplets in fiber lasers显示文摘The evolution of soliton molecules emphasizes the complex soliton dynamics akin to matter molecules.Beyond the simplest soliton molecule-a soliton pair constituted by two bound pulses-soliton molecules with more constituents have more degrees of freedom because of the temporal pulse separations and relative phases.Here we detailedly characterize the transient dynamics of soliton triplets in fiber lasers by using the dispersive Fourier transform measurement.A particular form of leading,central,and tailing pulses is constructed to shed new light on more intriguing scenarios and fuel the molecular analogy.Especially the vibrating dynamics of the central and tailing pulses are captured near the regime of equally spaced soliton triplets,which is reminiscent of the recurrent timing jitters within multi-pulse structures.Further insights enable acess into a universal form of unequally spaced soliton triplets interpreted as 2+1 soliton molecules.Different binding strengths of intramo-lecular and intermolecular bonds are validated with respect to the diverse internal motions involved in this soliton triplet molcule.All these findings unveil the transient dynamics with more degrees of freedom as well as highlight the possible application for all-optical bit storage. | YIYANG LUO RAN XIA PERRY PING SHUM WENJUN NI YUSONG LIU HUY QUOC LAM QIZHEN SUN XIAHUI TANG LUMING ZHAO | 2020 | Photonics Research2020，8，6： | 3 |
| 5 | Adaptive motionvector re-sampling for fast fade and dissolve transitions onMPEG video显示文摘 | NI Qiang DU Weina ZHANG Wenjun | 2005 | IEEE Trans on Consumer Electronics2005，51，4： | 1 |
| 6 | Genome-wide expression profiles of seasonal bud dormancy at four critical stages in Japanese apricot显示文摘 | Wenjun Zhong Zhihong Gao Weibing Zhuang Ting Shi Zhen Zhang Zhaojun Ni | 2013 | Plant Molecular Biology2013，，3： | 1 |
| 7 | Adaptive mo-tion vector re-sampling for fast fade and dissolve tran-sitions on MPEG video显示文摘 | NI Qiang DU Weina ZHANG Wenjun | 2005 | IEEE Transactions onConsumer Electronics2005，51，4： | 1 |
| 8 | Lunar meteorites: witnesses of the composition and evolution of the Moon显示文摘Lunar meteorites are fragments of the Moon that escaped the gravity of the Moon following high-energy impacts by asteroids,subsequently fell to Earth.An inventory of 165 lunar meteorites has been developed since the discovery and identification of the first lunar meteorite,ALHA 81005,in 1979.Although the Apollo samples are much heavier in mass than lunar meteorites,the meteorites are still an important sample supplement for scientific research on the composition and history of the Moon.Apart from a small amount of unbrecciated crystalline rocks,the majority of lunar meteorites are breccias that can be classified into three groups:highland feldspathic breccia,mare basaltic breccia,and mingled(including fledspathic and basaltic clasts)breccia.The petrography of lunar rocks suggests that there are a series of rock types of anorthosite,basalt,gabbro,troctolite,norite and KREEP in the Moon.Although KREEP is rare in lunar rocks,KREEP components have been found in the increasing number of lunar meteorites.KREEP provides important information on lunar magmatic evolution,e.g.,the VHK KREEP clasts in SaU 169 may represent the pristine lunar magma(urKREEP).Six launching pairs of lunar meteorites have been proposed now,along with ten possible lunar launching sites.In addition,symplectite is often found in lunar basalts,which is a significant record of shock metamorphism on the lunar surface.Furthermore,isotopic ages and noble gases not only provide information on crystallization processes in lunar rocks and the formation of lunar crust,but also provide insight into shock events on the lunar surface. | MIAO Bingkui CHEN Hongyi XIA Zhipeng YAO Jie XIE Lanfang NI Wenjun ZHANG Chuantong | 2014 | Advances in Polar Science2014，25，2： | 1 |
| 9 | New equation to decipher the relationship between carbon isotopic composition of methane and maturity of gas source rocks显示文摘The identification of the origin and source of natural gas is always a difficult and hot issue.Hereinto,the maturity identification is one of the most important scientific problems.Many empirical equations have been established to decipher the relationship between the maturity of gas source rocks and the carbon isotopic composition of natural gas.However,these equations proposed often fail to identify the maturity of the source rocks correctly,which in turn prevents the identification of genetic types and source rocks of the natural gas because the petroliferous sedimentary basins in China are complex and diverse,with multiple sets of source rocks and different thermal history.In this paper,the oil-associated gas from the Permian lacustrine source rocks and the coal-derived gas from the Jurassic source rocks in Junggar and Turpan-Hami basins have been investigated to decipher the relationship between the maturity(vitrinite reflectance)of gas source rocks and the carbon isotopic composition of methane.The equations established areδ^(13)C_(1)=25lgR_(o)-42.5 for oil-associated gas,andδ^(13)C_(1)=25lgR_(o)-37.5 for coal-derived gas.These new equations are suitable for the maturity identification of source rocks in most petroliferous basins,and favorable for the identification of the genetic type and source of natural gas,which is very important to improve the geological theory of natural gas. | Jianping CHEN Xulong WANG Jianfa CHEN Yunyan NI Baoli XIANG Fengrong LIAO Wenjun HE Limiao YAO Erting LI | 2021 | Science China Earth Sciences2021，64，3： | 1 |
| 10 | Mutual inhibition between YAP and SRSF1 maintains long non-coding RNA, Malat1-induced tumourigenesis in liver cancer显示文摘 | Jiayi Wang Hongmei Wang Yue Zhang Ni Zhen Li Zhang Yongxia Qiao Wenhao Weng Xiangfan Liu Lifang Ma Weifan Xiao Wenjun Yu Qinghua Chu Qiuhui Pan Fenyong Sun | 2014 | Cellular Signalling2014，，： | 1 |
| 11 | Energy-optimal trajectory planning for solar-powered aircraft using soft actor-critic显示文摘High-Altitude Long-Endurance(HALE)solar-powered Unmanned Aircraft Vehicles(UAVs)can utilize solar energy as power source and maintain extremely long cruise endurance,which has attracted extensive attentions from researchers.Trajectory optimization is a promising way to achieve superior flight time because of the finite solar energy absorbed in a day.In this work,a method of trajectory optimization and guidance for HALE solar-powered aircraft based on a Reinforcement Learning(RL)framework is introduced.According to flight and environment information,a neural network controller outputs commands of thrust,attack angle,and bank angle to realize an autonomous flight based on energy maximization.The validity of the proposed method was evaluated in a 5-km radius area in simulation,and results have shown that after one day-night cycle,the battery energy of the RL-controller was improved by 31%and 17%compared with those of a Steady-State(SS)strategy with a constant speed and a constant altitude and a kind of statemachine strategy,respectively.In addition,results of an uninterrupted flight test have shown that the endurance of the RL controller was longer than those of the control cases. | Wenjun NI Ying BI Di WU Xiaoping MA | 2022 | Chinese Journal of Aeronautics2022，35，10： | 1 |
| 12 | Genome-wide expression profiles of seasonal bud dormancy at four critical stages in Japanese apricot显示文摘 | Wenjun Zhong Zhihong Gao Weibing Zhuang Ting Shi Zhen Zhang Zhaojun Ni | 2013 | Plant Molecular Biology2013，，3： | 1 |
| 13 | The Fabrication and SHG Test of QPM Periodically Poled KTiOPO_4显示文摘The Quasi-phase-matching periodically poled flux-grown KTP by high electrical field method is researched. A 8×5×1mm3,∧=9.0μm PPKTP wafer is successfully fabricated for the first order QPM SHG. The interactive length of the sample is about 3mm. The SHG scheme of Nd: YAG at 1064nm tested that the output power of cw 532nm green light is 0.2mw at room temperature with fundamental power of 1.2w. The normalized conversion efficiency is about 0.09% (W·cm)-1. | Mei Sang Jian Yu Wenjun Ni Ting Xue Shichen LiCollege of science, College of precision instrument and Optoelectronics Engineering, TianjinUniversity, Key Laboratory of Opto-electronics Information and Technical Science, Ministry ofEducation, Tianjin, P.R.China, Tel: 86-22-27404468, Fax: 86-22-27406726, E-mail: m_sang@eyou.com | 2003 | 光学学报2003，23，S1： | 1 |
| 14 | Effect of different drying methods on the amino acids,α-dicarbonyls and volatile compounds of rape bee pollen显示文摘The significant demand for high quality food has motivated us to adopt appropriate processing methods to improve the food nutritional quality and flavors.In this study,the effects of five drying methods,namely,pulsed vacuum drying(PVD),freeze drying(FD),infrared drying(IRD),hot-air drying(HAD)and sun drying(SD)on free amino acids(FAAs),α-dicarbonyl compounds(α-DCs)and volatile compounds(VOCs)in rape bee pollen(RBP)were determined.The results showed that FD significantly released the essential amino acids(EAAs)compared with fresh samples while SD caused the highest loss.Glucosone was the dominantα-DCs in RBP and the highest loss was observed after PVD.Aldehydes were the dominant volatiles of RBP and SD samples contained more new volatile substances(especially aldehydes)than the other four drying methods.Comprehensively,FD and PVD would be potential methods to effectively reduce the quality deterioration of RBP in the drying process. | Yanxiang Bi Jiabao Ni Xiaofeng Xue Zidan Zhou Wenli Tian Valérie Orsat Sha Yan Wenjun Peng Xiaoming Fang | 2024 | Food Science and Human Wellness2024，13，1： | 0 |
| 15 | Temperature-sensitive and solvent-resistance hydrogel sensor for ambulatory signal acquisition in“moist/hot environment”显示文摘To realize continuously and stably work in a“moist/hot environment”,flexible electronics with excellent humid resistance,antiswelling,and detection sensitivity are demanding.Herein,a solvent-resistant and temperature-ultrasensitive hydrogel sensor was prepared by combining MXene and quaternized chitosan(QCS)with the binary polymer chain.The strong electrostatic interaction between the QCS chain and the poly(acrylic acid)(PAA)network endows the hydrogel stability against solvent erosion,high temperature,and high humidity.The strong dynamic interaction between MXene and polymer matrix significantly improves the mechanical properties and sensing(strain and temperature)sensitivity of the hydrogel.The hydrogel strain sensor exhibits a high gauge factor(5.53),temperature/humidity tolerance(equilibrium swelling ratio of 2.5%at 80℃),and excellent cycle stability,which could achieve a remote and accurate perception of complex human motion and environment fluctuation under aquatic conditions.Moreover,the hydrogel sensor exhibits impressive thermal response sensitivity(-3.183%/℃),ultrashort response time(<2.53 s),and a low detection limit(<0.5℃)in a wide temperature range,which is applied as an indicator of the body surface and ambient temperature.In short,this study broadens the application scenarios of hydrogels in persistent extreme thermal and wet environments. | Xinyu Qu Hanjun Sun Xiaolong Kan Bing Lei Jinjun Shao Qian Wang Wenjun Wang Zhenhua Ni Xiaochen Dong | 2023 | Nano Research2023，16，7： | 0 |
| 16 | Characteristics of 240 randomized controlled trials for adjusting constitution in preventive treatment of disease:A bibliometric analysis显示文摘Background:A growing number of randomized controlled trials(RCTs)have explored the significance of adjusting constitution for preventive treatment of disease in traditional Chinese medicine(TCM).In this study,we sought to comprehensively analyze the characteristics of these RCTs.Methods:All RCTs related to constitutional adjustment and preventive treatment of disease were included in the study.Literature was screened searching seven databases,including Pubmed,Web of Science,Embase,SinoMed,CNKI,Chongqing VIP,and Wangfang Database,from inception to December 2018.Data pertaining to bibliometrics,participants,and interventions were extracted and analyzed.Results:Two hundred and forty papers were published between 2007 and 2018,involving 240 RCTs with 55977 total participants.Sample size in these RCTs ranged from 30 to 7800.Among them,59 RCTs addressed disease prevention prior to onset involving 11 healthy states of participants,mainly for general health or sub-health population(40.68%)using health care and non-drug therapy.In control the development of existing disease(n Z 174),59 diseases were involved.Based on the number of RCTs and sample sizes,diseases including type 2 diabetes mellitus,primary hypertension,nonalcoholic fatty liver disease,and hyperlipoproteinemia accounted for 51.15%of the total patients studied.Drug therapy as an intervention was frequently used.In preventing recurrence after recovery(n Z 7),over 4 kinds of health status in participants were involved.Drug therapy combined with health care was mostly used.Most RCTs reported positive outcomes,with only one reporting negative findings(1/240).Conclusion:The number of RCTs of constitutional adjustment on preventive treatment of disease has gradually increased since 2012.Participants and intervention measures from the above-mentioned types of RCTs exhibit their own characteristics.Future systematic reviews or meta-analyses on constitutional adjustment for preventive treatment of disease are warranted. | Wenjun Yu Shenglou Ni Qianru Li Mingyue Ma Ya’nan Peng Weidong Yu Hua Jin Pengting Zhang Qi Wang | 2019 | Journal of Traditional Chinese Medical Sciences2019，6，3： | 0 |
| 17 | Singlet relaxation dynamics and long triplet lifetimes of thiophene-coupled perylene diimides dyads:New insights for high efficiency organic solar cells显示文摘In the active layer of organic solar cells(OSCs),the lifetime of triplet excitons is one of the decisive factors in the diffusion length and therefore has important impact on the power conversion efficiency of the devices.Herein,we have investigated singlet excited state relaxation dynamics and their triplet exciton lifetimes of two thiophene-coupled perylene diimides(PDI)dyads(2 PDI-Th and fused-2 PDI-Th),in order to provide a unique explanation in depth on their different performances in OSC devices.From the transient absorption(TA)spectra,the singlet excitons of 2 PDI-Th form excimers in the time scale of 1.5 ps.Then the excimers go into the triplet state via intersystem crossing(ISC).In fused-2 PDI-Th,triplet excitons are generated directly from the singlet excited excitons via the efficient ISC.Density functional theory(DFT)calculations further support the formation of excimers.DFT results indicate that 2 PDI-Th exhibits an H-typed molecular configuration which is beneficial to form the excimers,while fused-2 PDITh gives a twisted X-shaped configuration in the optimized ground and excited state.In steady-state emission spectra,2 PDI-Th shows abroad and featureless spectral characteristics of the excimers with a decay time of 840 ps,which is much shorter than those of PDI(5.5 ns)and fused-2 PDI-Th(3.3 ns).The triplet lifetime(67 ms)of fused-2 PDI-Th is factor of 3 longer than that of 2 PDI-Th(22 ms).These results demonstrate that ring-fused structure is an efficient strategy to eliminate excimer formation and prolong the lifetime of triplet excitons,which provides a new insight for design of optoelectronic molecules for high efficiency organic solar cells. | Qingxuan Fan Wenjun Ni Lingcheng Chen Gagik G.Gurzadyan Yi Xiao | 2020 | Chinese Chemical Letters2020，31，11： | 0 |
| 18 | A NEW ROUTING ALGORITHM FOR THE SHUFFLE-EXCHANGE PERMUTATION NETWORK显示文摘在这篇论文,一个新路由算法为 shuffle-exchangepermutation 网络(SEP_n ) 被给。在我们的算法给的任何二个节点之间的路径的长度是不超过 11/16 n^2 + O (n) ,即, SEP_n 的直径是至多 11/16 n^2 + O (n) 。1/8 上的 Thisimproves (9n ~ 2 - 22n + 24 ) S 更早描述的路由算法。Latifi 和 P。K.Srimani。我们也证明 SEP_n 的直径多于 1/2 n^2 - n。 | Baoxing CHEN Wenjun XIA Ni DU | 2006 | Journal of Systems Science & Complexity2006，19，4： | 0 |
| 19 | Adaptive Multi-Resolution Method for 3D Reactive Flows with Level Set Front Capturing显示文摘For compressible reactive flows with stiff source terms,a new block-based adaptive multi-resolution method coupled with the adaptive multi-resolution representation model for ZND detonation and a conservative front capturing method based on a level-set technique is presented.When simulating stiff reactive flows,underresolution in space and time can lead to incorrect propagation speeds of discontinuities,and numerical dissipation makes it impossible for traditional shock-capturing methods to locate the detonation front.To solve these challenges,the proposed method leverages an adaptive multi-resolution representation model to separate the scales of the reaction from those of fluid dynamics,achieving both high-resolution solutions and high efficiency.A level set technique is used to capture the detonation front sharply and reduce errors due to the inaccurate prediction of detonation speed.In order to ensure conservation,a conservative modified finite volume scheme is implemented,and the front transition fluxes are calculated by considering a Riemann problem.A series of numerical examples of stiff detonation simulations are performed to illustrate that the present method can acquire the correct propagation speed and accurately capture the sharp detonation front.Comparative numerical results also validate the approach’s benefits and excellent performance. | Wenhua Ma Dongmi Luo Wenjun Ying Guoxi Ni Min Xiao Yibing Chen | 2023 | Communications in Computational Physics2023，33，3： | 0 |
| 20 | A modified back analysis method for deep excavation with multi-objective optimization procedure显示文摘Real-time prediction of excavation-induced displacement of retaining pile during the deep excavation process is crucial for construction safety.This paper proposes a modified back analysis method with multi-objective optimization procedure,which enables a real-time prediction of horizontal displacement of retaining pile during construction.As opposed to the traditional stage-by-stage back analysis,time series monitoring data till the current excavation stage are utilized to form a multi-objective function.Then,the multi-objective particle swarm optimization (MOPSO) algorithm is applied for parameter identification.The optimized model parameters are immediately adopted to predict the excavation-induced pile deformation in the continuous construction stages.To achieve efficient parameter optimization and real-time prediction of system behavior,the back propagation neural network (BPNN) is established to substitute the finite element model,which is further implemented together with MOPSO for automatic operation.The proposed approach is applied in the Taihu tunnel excavation project,where the effectiveness of the method is demonstrated via the comparisons with the site monitoring data.The method is reliable with a prediction accuracy of more than 90%.Moreover,different optimization algorithms,including non-dominated sorting genetic algorithm (NSGA-II),Pareto Envelope-based Selection Algorithm II (PESA-II) and MOPSO,are compared,and their influences on the prediction accuracy at different excavation stages are studied.The results show that MOPSO has the best performance for high dimensional optimization task. | Chenyang Zhao Le Chen Pengpeng Ni Wenjun Xia Bin Wang | 2024 | Journal of Rock Mechanics and Geotechnical Engineering2024，16，4： | 0 |
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