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| 1 | Adakitic rocks associated with the Shilu copper–molybdenum deposit in the Yangchun Basin,South China,and their tectonic implications显示文摘South China is famous for the extensive magmatism and polymetallic mineralization that took place there in the Mesozoic. Shilu is a large porphyry–skarn Cu–Mo deposit in the Yangchun Basin, South China. The lithology of the Shilu intrusion is granodiorite and quartz diorite, both of which are high-K calc-alkaline series, with high Sr([400 ppm) content along with low Y and Yb contents. Most of the samples have characteristics of adakite except for a few samples that have slightly higher Y and Yb contents, which may be plausibly explained by crustal contamination. Laser Ablation Inductively Coupled Plasma Mass Spectrometry zircon U–Pb dating revealed ages between 106.6 ± 1.3 and 103.9 ± 0.5 Ma, with multiple magmatic pulses. Molybdenite Re–Os isochron age of 102.2 ± 2.9 Ma(MSWD = 9.4) was determined, which is identical to the youngest zircon U–Pb age(103.9 ± 0.5 Ma) within error.The Shilu intrusion has high oxygen fugacity as indicated by high zircon Ce^(4+)/Ce^(3+) and Eu_N/Eu_N* ratios. Considering the geochemical characteristics(high Sr, and low Y and Yb contents), high oxygen fugacity, and copper mineralization of the Shilu intrusion, it was most likely formed by partial melting of a subducted young oceanic slab. Whole-rock Sr–Nd isotope-, zircon Hf isotope-, and whole-rock trace element analyses show that Shilu adakitic magmas may have interacted with type II enriched mantle and/or crustal materials during ascent. South China was affected by the Pacific tectonic regime to the east and the Neo-Tethys tectonic regime to the south in the Cretaceous. Based on the Pacific Plate drifting and rotation history, it is hard to explain how the Pacific Plate would have subducted and melted, forming adakitic rocks in the Shilu region. Considering the tectonic history of Southeast Asia and the South China Sea, the Neo-Tethys trench should have been much closer to the South China Block in the Cretaceous, and thus have had a greater impact on the South China Block. Based on the subduction direction, time of subduction,and distance between the Neo-Tethys subduction zone and the Shilu deposit, subduction of the Neo-Tethys ridge is the best mechanism for explaining the Shilu adakitic rocks and Cu–Mo mineralization. | Lipeng Zhang Yongbin Hu Jinlong Liang Trevor Ireland Youliang Chen Rongqing Zhang Saijun Sun Weidong Sun | 2017 | Acta Geochimica2017，36，2： | 15 |
| 2 | Re-Os isotope dating of pyrite from the footwall mineralization zone of the Xinqiao deposit,Tongling,Anhui Province:Geochronological evidence for submarine exhalative sedimentation显示文摘The Xinqiao deposit is located in the Tongling area,Anhui Province.This deposit is dominantly composed of stratiform sulfide orebodies,which are restricted to the transitional zone from clastic rocks to carbonates at the base of the Late Carboniferous Huanglong Formation.There are discordant veinlets or networks of mineralization in the footwall rocks below the stratiform sulfide orebodies.The underlying discordant mineralization zones coexist with conformable stratiform sulfide orebodies,which are considered to be the most representative features of massive sulfide deposits formed by submarine exhalative sedimentation.This study reports a pyrite 187Re-187Os isotopic age of 319±13 Ma(MSWD=16) for the footwall mineralization zone.This isochron age is consistent with the interval of strata hosting the conformable stratiform sulfide orebody,and provides direct geochronological evidence for Carboniferous exhalative sedimentary mineralization. | GUO WeiMin LU JianJun JIANG ShaoYong ZHANG RongQing QI Liang | 2011 | Chinese Science Bulletin2011，56，35： | 11 |
| 3 | Interference-Free Pilot Design and Channel Estimation Using ZCZ Sequences for MIMO-OFDM-Based C-V2X Communications显示文摘Cellular vehicle-to-everything(C-V2X) communications is regarded as a promising and feasible solution for 5G-enabled vehicular communications and networking. In this paper, we investigate the pilot design and channel estimation problem in MIMO-OFDM-based C-V2X systems with severe co-channel interference due to spectrum reusing among different V2X communication links. By using zero-correlation zone(ZCZ) sequences, we provide an interference-free pilot design scheme and a corresponding time-domain(TD) correlation-based channel estimation(TD-CCE) method. We employ the ZCZ sequences from the same family set to be designed as the TD pilot symbols and guarantee the pilot sequeneces for neighboring V2X communication links are code-division multiplexing(CDM). The co-channel pilot interference of the deisgned pilot symbols can be effectively eliminated by exploiting the provided TD-CCE method. Simulation results indicate that the accuracy of channel estimation can be effectively improved by the proposed scheme, whose performance is close to that of the non-interference situation. | Haibin Chen Rongqing Zhang Wenjun Zhai Xiaoli Liang Guojuan Song | 2018 | China Communications2018，15，7： | 5 |
| 4 | Calibration of the simulation parameters of the particulate materials in film mixed materials显示文摘In order to obtain accurate contact parameters of a particulate material in residual film mixture collected by cotton field machine in Xinjiang,the angle of repose test and inclined plane test were carried out.In the tests,the angles of repose of the particulate material with the water content of(6.26±1.5)%and(14.1±2.1)%were measured respectively,as well as the static sliding friction angle between the particulate material and the residual film.At the same time,the EDEM software was used to calibrate the coefficient of restitution,static friction coefficient and dynamic friction coefficient between the material and the film.Then,the second-order response model between contact parameters and the angle of repose and static sliding friction angle was constructed.In addition,the optimal contact parameters between the granular materials and the mulch were obtained by fitting the physical test data.The results indicated that the errors between the physical test results and the numerical simulation results are small.It was proved that the second-order response model could predict the repose angle of granular materials and the static sliding friction angle between granular materials and farmland film.This study could provide theoretical support for the subsequent model construction of the residual film mixture collected by the cotton field machine. | Rongqing Liang Xuegeng Chen Peng Jiang Bingcheng Zhang Hewei Meng Xiangbin Peng Za Kan | 2020 | International Journal of Agricultural and Biological Engineering2020，13，4： | 3 |
| 5 | Characterization of microbial communities in strong aromatic liquor fermentation pit muds of different ages assessed by combined DGGE and PLFA analyses显示文摘 | Jia Zheng Ru Liang Liqiang Zhang Chongde Wu Rongqing Zhou Xuepin Liao | 2013 | Food Research International2013，，1： | 1 |
| 6 | Calibration and test of the contact parameters for chopped cotton stems based on discrete element method显示文摘In view of the fact that the existing cotton stem simulation models are simplified and have a large discrepancy from the actual appearance and the contact parameters have not been calibrated.In this study,the simulation model and numerical simulation were established using the discrete element software EDEM.Then a second-order response model between contact parameters and repose angle had been constructed.The test result showed that the static friction coefficient,rolling friction coefficient,and coefficient of restitution between cotton stems were crucial factors affecting the repose angle.The determination coefficient corrected determination coefficient and p-value of the second-order response model were R^(2)=0.959,R^(2)_(adj)=0.921,and p<0.0001 respectively.The error values of the comparison between the simulation test results and the corresponding physical test values were all less than 10%,which showed that the model was reliable and had high interpretation and predictability,this study can provide a certain theoretical basis and data support for the setting of contact parameters in the data simulation of cotton stem harvesting and processing,mechanically-harvested film residue crushing and film stem separation,etc. | Rongqing Liang Xuegeng Chen Bingcheng Zhang Xinzhong Wang Za Kan Hewei Meng | 2022 | International Journal of Agricultural and Biological Engineering2022，15，5： | 1 |
| 7 | Pre- dictable characteristics of the fluorescent lamp electrodes with the constant RMS voltage heating method during the preheating phase 显示文摘 | ZHANG Weiqiang YING Jianping LIANG Rongqing | 2012 | IEEE Transactions on Power Electronics2012，27，5： | 1 |
| 8 | Dynamics of laser-induced cavitation bubble near solid boundary显示文摘 | Zhao Rui Liang Zhongcheng Xu Rongqing | 2008 | Japanese Journal of Applied Physics2008，47，7： | 1 |
| 9 | The characteristics of dielectric barrier discharge and its influence on the excimer XeC1 * emission显示文摘 | XU Jinzhou LIU Wei LIANG Rongqing | 2001 | Plasma Science & Technology2001，3，： | 1 |
| 10 | Surface modification of indium tin oxide by oxygen plasma immersion ion implantation显示文摘Organic electroluminescent device,also known as organic light-emitting diode (OLED),is a kind of solid state light emitting device by carrier injection which can directly transform electrical energy into luminous energy.Due to its low operating voltage,low energy consumption,high brightness,flexibility in the choice of materials and easy realization of full color display,OLED is the potential material both in the display and illumination fields.However,there is much scope to improve the efficiency,lifetime,and reduce the cost in mass production before OLEDs can replace traditional technology in some application fields.In this work,we report the oxygen plasma immersion ion implantation (PIII) to improve the surface oxygen ratio of ITO films for further increase of surface work function above the common treatment of O2 inductively coupled plasma (ICP).The ratio of oxygen content at the surface layer was improved to be much higher than by O2 ICP treatment.A further surface work function relative increase of 0.4e V above OICP sample and 0.4 eV above the as-prepared sample can be estimated by the peak relative shift in the X-ray photoelectron spectroscopy (XPS) diagram.Moreover,the XPS characterization was carried out at least 50 h after the PIII implantation to indicate that the surface modifying effects are stable.The variations of transparency and conductivity of the PIII treated ITO samples can be neglected. | CHENG WeiHai HE Long FAN XiaoXuan OU QiongRong LIANG RongQing | 2013 | Science China(Technological Sciences)2013，56，4： | 1 |
| 11 | Ethyl esters enhancement of Jinchuan pear wine studied by coculturing Saccharomyces bayanus with Torulaspora delbrueckii and their community and interaction characteristics显示文摘To enhance the fruity flavour of pear wine by coculturing Saccharomyces yeasts with non-Saccharomyces,the coculture patterns were optimised based on the effect of different strains on the physicochemical properties and metabolites,and the interaction relationship in the coculture fermentation was also studied.These results showed that total volatiles of S.bayanus were higher than those of S.cerevisiae,especially esters,acids and phenols.The contents of total volatiles and esters were enhanced by sequential inoculation.The effect of coculturing S.bayanus Y4 with T.delbrueckii Y7 or Pichia sp.was better than that of coculturing with them with S.cerevisiae Y1,enhancing the contents of phenylethanol,acetate and ethyl esters.Furthermore,the esters(mainly ethyl esters)content was increased by 53.30%,and the acids content was decreased by 32.82%when S.bayanus Y4 was cocultured with T.delbrueckii Y7 by sequential inoculation compared with S.bayanus Y4 single inoculation.Their coculture increased theα-diversity of the fungal community and changed the correlation network between the microbiota.Redundancy analysis showed that Torulaspora was closely correlated to ethyl hexanoate,ethyl decanoate and ethyl 9-decenoate,while Saccharomyces was associated with hexanoic acid and octanoic acid.PICRUSt2 prediction revealed that Torulaspora may utilize the fatty acids produced by Saccharomyces to synthesize fatty acid ethyl esters. | Jian Liu Miao Liu Pian Ye Cheng He Yingjie Liu Suyi Zhang Jun Huang Jun Zhou Rongqing Zhou Liang Cai | 2022 | Food Bioscience2022，46，2： | 0 |
| 12 | Distributed Beamforming for Energy-Harvesting Relaying in Vehicular Networks显示文摘Recently,battery capacity and charging speed have been the bottlenecks of mobile communication networks.Energy harvesting(EH)relaying has become a promising solution for green 5th generation mobile communication with the advancement of wireless power transfer technology.In this paper,we investigate EH relaying in vehicular networks and adopt distributed beamforming(DB)to enhance the reliability and capacity of EH relaying.To be more specific,we propose a DB solution based on the joint optimization of power-splitting(PS)factors.For amplify-and-forward relaying,to transform the optimization problem into a quasi-convex one,we apply the semidefinite relaxation(SDR)method so that we can effectively attain the global optimal solution,while the suboptimal DB solution with distributed optimal PS factor which only requires local channel state information is also proposed.For decode-and-forward relaying,to get the optimal PS factors,we set a signal-to-noise ratio threshold at the relays,which can reduce the system error rate caused by the poor transmission link.Simulation results demonstrate the efficiency of our proposed DB-based EH relaying scheme in vehicular networks. | Yuxiang Liang Bing Li Rongqing Zhang Hongze Li Shengjie Zhao | 2020 | Journal of Communications and Information Networks2020，5，2： | 0 |
| 13 | Cotton stalk restitution coefficient determination tests based on the binocular high-speed camera technology显示文摘The restitution coefficient(RC)of cotton stalks is an important elementary physical parameter that is required to establish the crushing mechanical model and research the film residue separation machinery.In this study,the calculation method of restitution coefficient considering the rotation motion of stalk-shaped agricultural materials was derived based on the principle of kinematics and the energy restitution coefficient method,and a test bench for measuring the RC was designed and built.The effects of collision material,moisture content,length,diameter,release height,and collision angle respectively on the RC were investigated by single-factor experiments and orthogonal experiments,and the regression models between influence factors and the RC were established.The results showed that Q235 showed the highest value of the RC,and it was followed by cotton stalks and soil lumps,sequentially.The RC of cotton stalks decreased with the increase of moisture content and diameter,while it increased at first and then decreased with the increase of length.As the release height was less than 500 mm,the RC increased with the increased release height.As the collision angle was less than 40°,the RC showed a linear increasing trend.The significance of the effects of factors on RC decreased with the following sequence:collision angle,length,release height,diameter,and moisture content.Length,collision angle,and release height were extremely significant.The contrast test results showed that the values based on Newton’s restitution coefficient method were smaller than that based on the energy restitution coefficient method.The verification test showed that the predicted rebound height of cotton stalks calculated based on the energy restitution coefficient method was closer to the actual rebound height,and the relative error was less than 5%. | Bingcheng Zhang Xuegeng Chen Rongqing Liang Jiali Li Xinzhong Wang Hewei Meng Za Kan | 2022 | International Journal of Agricultural and Biological Engineering2022，15，4： | 0 |
| 14 | Design and test of a multi-edge toothed cutting device for membraneimpurity mixed material显示文摘As the existing residual film crushing device in Xinjiang cannot directly crush membrane-impurity mixed material,by analyzing the compressive and cutting force characteristics of residual film material layer and cotton stalk,the cutting conditions of mixed materials were obtained,and the method of cutting was determined.A multi-edge toothed cutters was created,and a cutting device was built.It was preliminarily determined that the number of teeth in the cutters was 8,the clearance between the teeth and between the tooth and fixed blade was 3 mm,the speed of the high-speed cutter was 800 r/min,and the speed difference between the high-and low-speed cutters was-300 r/min.Test results show that the ratio of residual film to total residual film sampling mass was(2.22±0.30)%,(19.19±2.02)%,(58.94±3.19)% and(20.65±2.05)%,respectively,when the maximum outer profile size in the range of[0,20)mm,[20,100)mm,[100,500)mm and[500,~)mm.The mass of cotton stalks with lengths of[0,50)mm,[50,100)mm and[100,~)mm accounted for(32.57±1.5)%,(27.77±1.3)%and(39.66±1.75)%,respectively,and the cutting power consumption was(85.41±15.63)kJ.The test results can provide a basis for the subsequent membrane-impurity mixed material cutting technology,as well as some guidance for the separation of it. | Rongqing Liang Bingcheng Zhang Xuegeng Chen Hewei Meng Xinzhong Wang Congju Shen Yaping Li Za Kan | 2023 | International Journal of Agricultural and Biological Engineering2023，16，2： | 0 |
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