|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Relationship between heavy metals and dissolved organic matter released from sediment by bioturbation/bioirrigation显示文摘Organic matter(OM) is an important component of sediment. Bioturbation/bioirrigation can remobilize OM and heavy metals that were previously buried in the sediment. The remobilization of buried organic matter, thallium(Tl), cadmium(Cd), copper(Cu) and zinc(Zn) from sediment was studied in a laboratory experiment with three organisms: tubificid,chironomid larvae and loach. Results showed that bioturbation/bioirrigation promoted the release of dissolved organic matter(DOM) and dissolved Tl, Cd, Cu and Zn, but only dissolved Zn concentrations decreased with exposure time in overlying water. The presence of organisms altered the compositions of DOM released from sediment,considerably increasing the percentage of fulvic acid-like materials(FA) and humic acidlike materials(HA). In addition, bioturbation/bioirrigation accelerated the growth and reproduction of bacteria to enhance the proportion of soluble microbial byproduct-like materials(SMP). The DOM was divided into five regions in the three-dimensional excitation emission matrix(3 D-EEM), and each part had different correlation with the dissolved heavy metal concentrations. Dissolved Cu had the best correlation with each of the DOM compositions, indicating that Cu in the sediment was in the organic-bound form.Furthermore, the organism type and heavy metal characteristics both played a role in influencing the remobilization of heavy metal. | Yi He Bin Men Xiaofang Yang Yaxuan Li Hui Xu Dongsheng Wang | 2019 | Journal of Environmental Sciences2019，31，1： | 12 |
| 2 | Three-dimensional crustal movement and the activities of earthquakes,volcanoes and faults in Hainan Island,China显示文摘Hainan Island is a seismic active region, where Qiongshan M7.5 earthquake occurred in 1605 and several seismic belts appeared in recent years, especially the NS trending seismic belt(NSB) located in the northeast part of the island. Here is also a magmatic active region.The lava from about 100 volcanoes covered more than 4000 km^2. The latest eruptions occurred on Ma'anlinge Lei Huling volcanoes within 10,000 years. The neotectonic movement has been determined by geological method in the island and its adjacent areas. In the paper, the present-day 3D crustal movement is obtained by using Global Positioning System(GPS) data observed from 2009 to 2014 and leveling observations measured in 1970s and 1990s respectively. The results show the horizontal movement is mainly along SEE direction relative to the Eurasian Plate. The velocities are between 4.01 and 6.70 mm/a. The tension rate near the NSB is less than 1 mm/a. The vertical movement shows the island uplifts as a whole with respect to the reference benchmark Xiuyinggang. The average uplifting rate is 2.4 mm/a. The rates are 2-3 mm/a in the northwest and 3-5mm/a in the northwest. It shows the deformation pattern of the southwest island is upward relative to the northeast, which is different from the result inferred from the coastal change and GPS.Haikou and its adjacent region present a subsidence in a long time. The southern part of the middle segment of the Wangwu-Wenjiao fault uplifts relative to the northern. Meanwhile, the western part uplifts relative to the eastern NSB. The vertical crustal motion and the two normal faults nearly correspond to the terrain. The NSB is located along the Puqiangang-Dazhibo fault, which is assessed as a segmented fault with a dip of 80°-90° and partly exposed. The 3D deformations and other studies reveal the present activities of earthquakes, volcanoes and the faults. The small earthquakes will still occur in the NS belt and the volcanoes are not active now. | Yaxuan Hu Ming Hao Lingyun Ji Shangwu Song | 2016 | Geodesy and Geodynamics2016，7，4： | 6 |
| 3 | Histogram method for reliable thickness measurements of graphene films using atomic force microscopy(AFM)显示文摘Atomic force microscopy(AFM) is a commonly used technique for graphene thickness measurement.However, due to surface roughness caused by graphene itself and variation introduced in AFM measurement, graphene thickness is difficult to be accurately determined by AFM. In this paper, a histogram method was used for reliable measurements of graphene thickness using AFM. The influences of various measurement parameters in AFM analysis were investigated. The experimental results indicate that significant deviation can be introduced using various order of flatten and improperly selected measurement parameters including amplitude setpoint and drive amplitude. At amplitude setpoint of 100 mV and drive amplitude of 100 m V, thickness of 1 layer(1L), 2 layers(2L) and 4 layers(4L) graphene were measured.The height differences for 1L, 2L and 4L were 1.51 ± 0.16 nm, 1.92 ± 0.13 nm and 2.73 ± 0.10 nm, respectively. By comparing these values, thickness of single layer graphene can be accurately determined to be0.41 ± 0.09 nm. | Yaxuan Yao Lingling Ren Sitian Gao Shi Li | 2017 | Journal of Materials Science & Technology2017，33，8： | 5 |
| 4 | Comparing containment measures among nations by epidemiological effects of COVID-19显示文摘The coronavirus disease 2019(COVID-19)has evolved to a global pandemic since its inception in December 2019.Countries have responded to the epidemics with different levels of responses and containment measures.Given the unprecedented pressure on nations’healthcare systems and the deaths so far,there is an urgent need to evaluate the effects of the containm ent measures,which would be useful for countries to plan for their responses to counter the first or possibly the second wave of the epidemic.There have been studies for the effects of COVID-19 control measures taken in China on disease transmission and public health interventions for W uhan’s outbreaks[1-4],and W uhan travel ban on the spread of COVID-19 both inside China and internationally[5,6]. | Jia Gu Han Yan Yaxuan Huang Yuru Zhu Haoxuan Sun Yumou Qiu Songxi Chen | 2020 | National Science Review2020，7，12： | 4 |
| 5 | Synthesis and Characterization of Disodium Hydrogen Phosphate Dodecahydrate-Lauric-Palmitic Acid Used for Indoor Energy Storage Floor Units显示文摘Organic and inorganic phase change materials(PCMs) are considered potential materials for thermal energy storage(TES) with different phase change characteristics. In this study, a novel organic-inorganic composite phase change material(PCM) called disodium hydrogen phosphate dodecahydrate-lauric-palmitic acid(D-LA-PACM) was prepared. Expanded graphite(EG) was selected as the support material, and the novel organic-inorganic form-stable PCM called D-LA-PAPCM/EG was prepared using the vacuum adsorption method. Differential scanning calorimetry, Fourier transform infrared spectroscopy, X-ray diffraction, leakage testing, melting and solidification cycle testing, thermal conductivity testing, scanning electron microscopy observation of the micromorphology, and other characterization methods were used to study the microstructure and morphology, thermal physical parameters, thermal conductivity, stability of the PCMs, and the comprehensive material properties of D-LA-PAPCM under the composite action of EG. Results indicated that the melting and freezing temperatures and latent heats of D-LA-PAPCM/EG were measured to be 31.6℃ and 34.3℃ and 142.9 and 142.8 J/g, respectively. Although some of the lauric-palmitic acid(LA-PA) and disodium hydrogen phosphate dodecahydrate(DHPD) separated in the multiple porous structures of EG after 1000 cycles, they could still absorb and release latent heats independently, with D-LA-PAPCM/EG still exhibiting good thermal stability. The thermal conductivity of D-LA-PAPCM/EG was 1.361 W/(m·K). Therefore, the material and thermal properties of the prepared D-LA-PAPCM/EG indicate that it could be well used as a feasible material for energy-saving phase change floor units in indoor TES systems. | XU Qian AKKURT Nevzat ZOU Zhenwei LIU Yang FENG Junxiao YU Chuqiao DING Chong XIONG Yaxuan ZHOU Jingzhi ZANG Yong DING Yulong | 2020 | Journal of Thermal Science2020，29，2： | 4 |
| 6 | Staged angioplasty versus regular carotid artery stenting in patients with carotid artery stenosis at high risk of hyperperfusion:a randomised clinical trial显示文摘Background and purpose Hyperperfusion(HP)is a devastating complication associated with carotid artery stenting(CAS)or endarterectomy.The efficacy and safety of staged angioplasty(SAP)in patients with CAS at high risk of HP remains unclear.We sought to determine whether SAP is superior to regular CAS in patients with high risk of HP.Methods A randomised,multicentre open-label clinical trial with blinded outcome assessment(STEP)was conducted.Patients with severe carotid stenosis at high risk of HP were randomly assigned(1:1)to the SAP or regular CAS group.The primary endpoint was hyperperfusion syndrome(HPS)and intracerebral haemorrhage(ICH)within 30 days after the procedure.Results From November 2014 to January 2017,a total of 64 patients were enrolled in 11 centres.33 patients were allocated to the SAP group and 31 to the regular CAS group.At 30 days,the rate of primary endpoint was 0.0%(0/33)in the SAP group and 9.7%(3/31)in the regular CAS group(absolute risk reduction(ARR),9.7%;95%CI−20.1% to 0.7%;p=0.11).As one of the secondary endpoints,the incidence of HP phenomenon(HPP)was lower in the SAP group than the regular CAS group(0.0%vs 22.6%,ARR,−22.6%;95% CI−36.8%to−10.2%;p=0.04).Conclusion The rate of HPS and ICH was not significantly lower in SAP group;the extended secondary endpoint of HPP,however,significantly reduced,which suggested that SAP may be a safe and effective carotid revascularisation procedure to prevent HP. | Dapeng Mo Baixue Jia Huaizhang Shi Yaxuan Sun Qingan Liu Chengzhe Fan Jianping Deng Jinglin Yuan Wei Wu Changchun Jiang Guilian Zhang Hanjun Du Ning Ma Feng Gao Xuan Sun Ligang Song Lian Liu Guangge Peng Yongjun Wang Yilong Wang Zhongrong Miao the STEP Study Group | 2021 | Stroke & Vascular Neurology2021，6，1： | 3 |
| 7 | Creating Colorful Flower Border for Building Beautiful Eco-city显示文摘Although it has been widely applied in China,flower border has great development potentials,and it is significant for the construction of eco-city to explore favorable flower borders fit for China.On the basis of introducing classification and components of flower border,this paper discusses key points of flower border design from the perspectives of planar and three-dimensional layouts,seasonal aspect,color,background and edge decoration,and puts forward major problems in the current flower border application.More indigenous species should be introduced into flower border designs to present works characterized by'localization of plant application,diversified landscape expression,and intensive construction and management'. | HAN Yaxuan | 2013 | Journal of Landscape Research2013，5，6： | 3 |
| 8 | Present three-dimensional crustal deformation in Hainan Island显示文摘Hainan Island,located at the southeast edge of the Eurasian Plate,is affected by the motion of multiple plates,with its northeast edge mainly dilatating and its western margin presently compressing. By analyzing the GPS rates during 1999- 2007 in Hainan and its adjacent region,we determined horizontal movement rates of 3. 0-21. 1 mm /a at the west of 104°E,evidently affected by the Indian Plate extrusion.Their directions are SE-SN-SW from east to west and are separated by the main fault. The principal strains have the same characteristics. The stations east of 104°E move mainly in the SEE direction. The eastward rates are 2. 1-8. 5 mm /a and northward rates are 0. 4- 2. 7 mm /a. The GPS rates during 2009- 2013 show that stations at the edge of the island move SEE relative to the Eurasian Plate,with rates relative to the mean benchmark,indicating that there are small relative movements between stations,whereas QION station,located in the middle,moves in the NW direction at a greater rate. Vertical differential movement is apparent in the northeast zone of the island. Upwelling of mantle plume material possibly influences the local stress.Three-dimensional GPS rates indicate that,at present,inherited crustal movement is dominant in Hainan. | Hu Yaxuan Hu Jiuchang Hao Ming | 2014 | Geodesy and Geodynamics2014，5，2： | 3 |
| 9 | SO_2 emission cap planning for Chengdu-Chongqing economic zone显示文摘The SO 2 emission sources of the Chengdu-Chongqing economic zone were divided into 556 emissions units according to four different categories,which are city,industry,point sources,and area sources.The CALPUFF model was used to calculate the contribution of each unit,and consequently obtain an influence-transferring matrix.To ensure that the SO 2 concentrations of 46 cities and counties in the Chengdu-Chongqing economic zone meet air quality standards,an emission optimization model was developed to calculate optimal emissions of each emission unit under different development scenarios.The result showed the optimal emissions of SO 2 by different provinces and industries.To achieve the target of restricting and optimizing development,corresponding planning programs were developed for every district. | Peng Yi Ning Duan Fahe Chai Yaxuan Xu Youjiang He | 2012 | Journal of Environmental Sciences2012，24，1： | 3 |
| 10 | Regulation of the order-disorder phase transition in a Cs_(2)NaFeCl_(6) double perovskite towards reversible thermochromic application显示文摘Multifunctional lead-free double perovskites demonstrate remarkable potential towards applications in various fields.Herein,an environmentally-friendly,low-cost,high-throughput Cs_(2)NaFeCl_(6) single crystal with exceedingly high thermal stability is designed and grown.It obtains a cubic lattice system in the temperature range of 80-500 K,accompanied by a completely reversible chromatic variation ranging from yellow to black.Importantly,the intriguing thermochromism is proved to own extremely high reproducibility(over 1000 cycles)without a hysteretic effect,originating from its structural flexibility that including(i)the noteworthy distortion/deformation of[NaCl_(6)]5−and[FeCl_(6)]3−octahedra;(ii)order-disorder arrangement transition of[NaCl_(6)]5−and[FeCl6]3−octahedra as the function of temperature.This study paves the way towards a new class of smart windows and camouflage coatings with an unprecedented colour range based on a Cs_(2)NaFeCl_(6) perovskite. | Wenzhe Li Naveed Ur Rahman Yeming Xian Hang Yin Yunkai Bao Yi Long Songyang Yuan Yangyi Zhang Yaxuan Yuan Jiandong Fan | 2021 | Journal of Semiconductors2021，42，7： | 2 |
| 11 | Quality analysis of the campaign GPS stations observation in Northeast and North China显示文摘TEQC is used to check the observations quality of 173 GPS campaign stations in the Northeast and North China. Each station was observed with an occupation of 4 days. The quality of the 692 data files is analyzed by the ratio of overall observations to possible observations, MP1, MP2 and the ratio of observations to slips. The reasons for multipath and cycle slips can be derived from the photos taken in the field. The results show that the coverage of trees and buildings/structures, and the interference of high-voltage power lines near the stations are the main reasons. In a small area, the horizontal velocity field in the period 2011—2013 is exemplified, where the magnitudes and directions of the 4 stations' rates are clearly different with that of other stations. It seems that the error caused by the worse environment cannot be mitigated through post processing. Therefore, these conclusions can help the establishment of GNSS stations, measurements, data processing and formulating standards in future. | Yaxuan Hu Lin Cheng Xiong Wang | 2016 | Geodesy and Geodynamics2016，7，2： | 2 |
| 12 | Nanocellulose-Assisted Construction of Multifunctional MXene-Based Aerogels with Engineering Biomimetic Texture for Pressure Sensor and Compressible Electrode显示文摘Multifunctional architecture with intriguing structural design is highly desired for realizing the promising performances in wearable sensors and flexible energy storage devices.Cellulose nanofiber(CNF)is employed for assisting in building conductive,hyperelastic,and ultralight Ti_(3)C_(2)T_(x)MXene hybrid aerogels with oriented tracheid-like texture.The biomimetic hybrid aerogels are constructed by a facile bidirectional freezing strategy with CNF,carbon nanotube(CNT),and MXene based on synergistic electrostatic interaction and hydrogen bonding.Entangled CNF and CNT“mortars”bonded with MXene“bricks”of the tracheid structure produce good interfacial binding,and superior mechanical strength(up to 80%compressibility and extraordinary fatigue resistance of 1000 cycles at 50%strain).Benefiting from the biomimetic texture,CNF/CNT/MXene aerogel shows ultralow density of 7.48 mg cm^(-3)and excellent electrical conductivity(~2400 S m^(-1)).Used as pressure sensors,such aerogels exhibit appealing sensitivity performance with the linear sensitivity up to 817.3 kPa^(-1),which affords their application in monitoring body surface information and detecting human motion.Furthermore,the aerogels can also act as electrode materials of compressive solid-state supercapacitors that reveal satisfactory electrochemical performance(849.2 mF cm^(-2)at 0.8 mA cm^(-2))and superior long cycle compression performance(88%after 10,000 cycles at a compressive strain of 30%). | Ting Xu Qun Song Kun Liu Huayu Liu Junjie Pan Wei Liu Lin Dai Meng Zhang Yaxuan Wang Chuanling Si Haishun Du Kai Zhang | 2023 | Nano-Micro Letters2023，15，7： | 2 |
| 13 | The Reform Scheme of Practice-Courses Cooperation Training Pattern of Software Engineering Major of Overseas Chinese Universities显示文摘How to improve the employment of software engineering graduates, especially, how to effectively enhance the employment competitiveness of relevant overseas students in the context of 'One Belt and One Road' is one of the core tasks of overseas Chinese universities. This paper proposes a reform plan for the practical training mode of school-enterprise cooperative project in the software engineering of overseas Chinese universities. The reform plan combines education concepts with practical research and development. It subdivides students and according to the characteristics of different types of students, and is carried out on campus, outside campus(in the province), and abroad(original area), which makes senior undergraduates fully understand the needs of enterprises, constantly improve their professional practice ability, and improve their competitiveness. Thus, the professional innovation and entrepreneurship ability of students is enhanced, and it also reduces the cost of employee entry. | Jin Gou Wei Luo Kongjie Lin Yaxuan Zhang | 2018 | 计算机教育2018，，12： | 2 |
| 14 | A new Riccatiequation expansion method with symbolic computation to construct new travelling wave soluation of nonlinear differential equations显示文摘 | Zhao Xueqin Zhi Hongyan Yu Yaxuan | 2006 | Applied Mathematics and Computation2006，，172： | 1 |
| 15 | Expression and regulation of genes involved in the reserve starch biosynthesis pathway in hexaploid wheat (Triticum aestivum L.)显示文摘Reserve starch of cereal crop accounts for about 70%of grain endosperm and acts as an important human carbohydrate resource worldwide.Wheat reserve starch is synthesized by enzymatic machinery in endosperm cells.To identify genes involved in starch biosynthesis,we constructed 30 RNA-Seq libraries of 10 endosperm-development periods and performed expression and localization analyses.Of 166 endosperm-expressed homologs of starch biosynthesis-related genes,74 showed expression correlated with reserve starch accumulation,including 26 with expected subcellular distribution and higher expression than their isoforms.The key proteins SUS3,UGP1,cAGPase,and Bt1-3 formed the main metabolic pathway and contributed the major substrates for starch processing in amyloplasts.Important isoforms,key pathway proteins,and the main carbon flux toward starch formation in the reserve starch biosynthesis pathway were identified.Based on a coexpression analysis,a library of 425 transcription factors was produced to screen for common regulators.TaMYB44 had features of transcription factors and bound to TaSUT1,TaSSIIIa,TaBEIIa,TaISA1,and TaBEIIb promoters in yeast,suggesting that the gene is a pathway regulator.This study sheds light on understanding the mechanism of reserve starch biosynthesis and will be helpful for increasing starch content in wheat endosperm via biotechnological strategies. | Yunsong Gu Shichen Han Lin Chen Junyi Mu Luning Duan Yaxuan Li Yueming Yan Xiaohui Li | 2021 | The Crop Journal2021，9，2： | 1 |
| 16 | Blockchain: A new safeguard for agri-foods显示文摘Blockchain implementation in agriculture has begun.Blockchain is recognized as an emerging technology in the agri-foods industry which may provide an efficient and robust mechanism for enhancing food traceability and a transparent and reliable way to validate quality,safety,and sustainability,of agri-foods.However,the technology is in its nascency,therefore,this review was written to foster discussion and encourage the application of blockchain technology,especially in the agri-food industry.In this review,the working principle of blockchain for data recording and tracking is briefly described.The collaborationmodels for the current blockchain applications on agri-foods are summarized.Furthermore,the specific utilization of blockchain to enhance safety and quality of agri-foods is discussed in four aspects:enhance the data transparency,realize data traceability,improve the food safety and quality monitoring,and reduce the cost of financial transactions.A case study on aWalmart pork traceability system has been provided to demonstrate how blockchain may be used to enhance the food traceability.Finally,challenges and future trends of blockchain technology in agri-foods concerning data/cost management,data security,and data integration are discussed.Blockchain technology reveals a promising approach to foster a future of agri-foods system in a way that is safer,healthier,more sustainable,and reliable. | Jie Xu Shuang Guo David Xie Yaxuan Yan | 2020 | Artificial Intelligence in Agriculture2020，，1： | 1 |
| 17 | OpenGate: Towards an open network services gateway显示文摘 | Yaxuan Qi Fei He Xiang Wang Xinming Chen Yibo Xue Jun Li | 2010 | Computer Communications2010，，： | 1 |
| 18 | Three-dimensional crustal deformation before and after the Wenchuan earthquake in Guanzhong and adjacent regions显示文摘The recent plethora of GPS observations compensates for the 20-year-old lack in vertical displacement data for the Guanzhong region. The 2001—2007 three-dimensional(3D) crustal deformation data suggest regional movement with a horizontal velocity of 3—7 mm/a,predominantly from SSE in the west to SE in the east, and vertical inherited movement with velocity of -7 mm/a to 4 mm/a. After the Wenchuan earthquake, the GPS data suggest that the effect of the earthquake on the regional deformation is greater in the west than the east.The horizontal displacement increased during 2007—2008; however, the reverse was observed in 2008—2009. The vertical displacement in the western part of the region increased in 2008 and has been gradually returning to normal since 2009; however, in the eastern part,the effect of the earthquake remains. | Hu Yaxuan Qin Shanlan Hao Ming | 2015 | Geodesy and Geodynamics2015，6，1： | 1 |
| 19 | Particulate pollution in an underground car park in Wuhan,China显示文摘在在武汉的一个地下的停车场的微粒事(下午) 污染被调查。PM10 和 PM2.5 的集体集中用 gravimetric 方法被获得。选择金属元素例如在 PM10 样品的 Fe, Mn, Zn, Pb,和 Cu,用原子吸收分光计(AAS ) 被决定。贝它变细方法被使用观察时时, PM10 的变化铺平。结果证明分别地,在入口并且在出口的平均 PM10 集中是 101.3 g/m3 和 234.4 g/m3,在入口并且在出口的平均 PM2.5 集中分别地是 47.7 g/m3 和 62.7 g/m3。下午污染比在入口在出口是更坏的。时时, PM10 集中微弱地与交通流动被相关。关于元素集中,在 PM10 样品的最充实的元素是 Fe。在出口的土壤灰尘的重新暂停是 PM10 的重要来源。 | Yaxuan Li Rongbiao Xiang | 2013 | Particuology2013，11，1： | 1 |
| 20 | Experimental study on the heat transfer characteristics of a low melting point salt in a parabolic trough solar collector system显示文摘 | Wu Yuting Liu Shanwei Xiong Yaxuan | 2015 | Applied Thermal Engineering2015，，89： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员