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| 1 | Ore-forming event and geodynamic setting of molybdenum deposit at Wenquan in Gansu Province,Western Qinling显示文摘The Wenquan molybdenum deposit is associated with a Triassic granite in this area.The Wenquan granite is enriched in LILE and LREE,poor in HFSE,and has significantly higher contents of alkali(K2O+Na2O) and Sr,Ba than those of the island arc volcanic rocks.These geochemical characteristics are similar to post-collisional granites in high K calc-alkaline series.Studies of major elements,trace elements,REEs and chronology of the Wenquan pluton show that,in the geodynamic transition stage of continent-continent convergence to extension,the partial melting of the enriched lithospheric mantle generated the basaltic magma and triggered the partial melting of the thickened lower crust which produceded the acidic magma,and the Wenquan pluton was formed by mixing of the two magmas.Molybdenite Re-Os isotopic dating gave Os model ages of 212.7±2.6 Ma to 215.1±2.6 Ma with a weighted mean of 214.1±1.1 Ma,and an Re-Os isochron age of 214.4±7.1 Ma.These ages are close to K-Ar ages(223 to 226 Ma) and a SHRIMP zircon U-Pb age(223±7 Ma) for the Wenquan granite within the error range,but relatively younger.This implies that the Mo mineralization occurred in a late stage of the magmatic intrusion,and the metallogenesis took place in the transition stage from syn-collision to post-collision in the tectonic setting of the Qinling Orogenic Belt(QOB) after continental collision be-tween the North China Block(NCB) and the South China Block(SCB).This process is also corre-sponding to the geological events of metamorphism and deformation in South Qinling,closure of the Mian-Lue oceanic basin,and exhumation of the Dabie-Sulu ultrahigh-pressure metamorphic rocks.The large-scale continent-continent collision between NCB and SCB in the middle Triassic triggered sig-nificant crustal thickening and exhumation of subducted slab.In the late Triassic,the tectonic setting was transformed to the transition stage from collision to extension.Materials from the asthenospheric mantle would ascend into the root of the lower crust,which could induce partial melting of the lower crust and generate Mo-enriched granitic magma.The ore-forming elements enriched in the fluid derived from the condensation and fraction of the magma resulted in the Mo mineralization.The Mo deposits in the QOB are mainly formed in two episodes,namely 220± Ma and 140± Ma.The two episodes of metal-logenesis were developed in the tectonic transition settings from compression to extension,but they were in the different stages of the tectonic evolution.The occurrence of the Wenquan Mo-bearing plu-ton indicates that the Triassic tectonic-magmatic belt of Western Qinling is another favorable region for Mo mineralization in the QOB.Therefore,it is significant to pay more attention to evaluation of the ore-forming potentiality in the Triassic granites in Western Qinling. | ZHU LaiMin DING ZhenJu YAO ShuZhen ZHANG GuoWei SONG ShiGang QU WenJun GUO Bo LEE Ben | 2009 | Chinese Science Bulletin2009，54，13： | 12 |
| 2 | The constraints of strain partitioning and geochronology in Luonan-Luanchuan tectonic belts on Qinling orogenic belt显示文摘The Luonan-Luanchuan tectonic belt lies between the North China Block and Qinling Mountains, in- cluding the Luonan-Luanchuan fault zone and the strong deformation zone to the north of the fault. The ductile shear zone, imbricate brittle fault and duplex structure in the fault zone now are the expression of the same tectonic event in different depth. Such lineation structure exists in the tectonic belts as mineral lineation, elongation lineation, crenulation lineation, sheath folds and so on, indicating NE-directed plate motion. Fold axes and thrusts in the strong deformation zone are inclined to the Luonan-Luanchuan fault zone at small angles. The structures with different natures show a regular pattern, produced during oblique convergence of plates. The convergence factors are as follows:The direction of plate convergence is 22°, 31° and the angle between the plate convergence direction and plate boundary is 73°, 82° respectively in the west and east segment. The Luonan-Luanchuan tectonic belt was deformed strongly in 372 Ma, resulted from Erlangping back-arc ocean basin subduction sin- istrally and obliquely to North China Block during the collision of North China Block and South China Block. | SONG ChuanZhong ZHANG GuoWei WANG YongSheng LI JiaHao CHEN ZeChao CAI ZhiChuan | 2009 | Science China Earth Sciences2009，52，3： | 9 |
| 3 | Train model acceleration and deceleration显示文摘In order to accelerate a heavy train model with great dimensions to a speed higher than 300 km h?1 in a moving train model testing system,compressed air is utilized to drive the train model indirectly.The gas from an air gun pushes the piston in an accelerating tube forward.The piston is connected to the trailer through a rope,and the trailer pulls the train model to the desired speed.After the testing section,the train model enters the deceleration section.The speed of the train model gradually decreases because of the braking force of the magnetic braking device on the bottom of the train model and the steel plates fixed on the floor of this device.The dissipation of kinetic energy of the trailer is also based on a similar principle.The feasibility of these methods has been examined in a 180 m-long moving train model testing system.The speed of the trailer alone reaches up to 490 km h-1.Consequently,a 34.8 kg model accelerates up to 350 km h?1;the smooth and safe stopping of the model is also possible. | YANG QianSuo SONG JunHao LI Duo ZHANG Jie YANG GuoWei | 2013 | Chinese Science Bulletin2013，58，7： | 3 |
| 4 | Physical Characteristics of Welding Arc Ignition Process显示文摘The existing research of welding arc mainly focuses on the stable combustion state and the research on the mechanism of welding arc ignition process is quite lack.The tungsten inert gas(TIG) touch arc ignition process is observed via a high speed camera and the high time resolution spectral diagnosis system.The changing phenomenon of main ionized element provided the electrons in the arc ignition is found.The metallic element is the main contributor to provide the electrons at the beginning of the discharging,and then the excitated shielding gas element replaces the function of the metallic element.The electron density during the period of the arc ignition is calculated by the Stark-broadened lines of Hα.Through the discussion with the repeatability in relaxation phenomenon,the statistical regularity in the arc ignition process is analyzed.The similar rules as above are observed through the comparison with the laser-assisted arc ignition experiments and the metal inert gas(MIG) arc ignition experiments.This research is helpful to further understanding on the generation mechanism of welding arc ignition and also has a certain academic and practical significance on enriching the welding physical theoretical foundation and improving the precise monitoring on automatic arc welding process. | SHI Linan SONG Yonglun XIAO Tianjiao RAN Guowei | 2012 | Chinese Journal of Mechanical Engineering2012，25，4： | 1 |
| 5 | Comprehensive evaluation on self-ignition risks of coal stockpiles using fuzzy AHP approaches 显示文摘 | Zeyang Song Hongqing Zhu Guowei Jia Chaonan He | 2014 | Joumal of Loss Prevention in the Process Industries2014，32，： | 1 |
| 6 | Surfac- tant- assisted synthesis and luminescent properties of Gd2O3 : Eu3+ core - shell microspheres 显示文摘 | Huang Jing Song Yanhua Wang Guowei | 2013 | Journal of Alloys and Compounds2013，574，： | 1 |
| 7 | Halogenated Thermally Activated Delayed Fluorescence Materials for Efficient Scintillation显示文摘Organic scintillators,materials with the ability to exhibit luminescence when exposed to X-rays,have aroused increasing interest in recent years.However,the enhancement of radioluminescence and improving X-ray absorption of organic scintillators lie in the inherent dilemma,due to the waste of triplet excitons and weak X-ray absorption during scintillation.Here,we employ halogenated thermally activated delayed fluorescence materials to improve the triplet exciton utilization and X-ray absorption simultaneously,generating efficient scintillation with a low detection limit,which is one order of magnitude lower than the dosage for X-ray medical diagnostics.Through experimental study and theoretical calculation,we reveal the positive role of X-ray absorption,quantum yields of prompt fluorescence,and intersystem crossing in promoting the radioluminescence intensity.This finding offers an opportunity to design diverse types of organic scintillators and expands the applications of thermally activated delayed fluorescence. | Xiao Wang Guowei Niu Zixing Zhou Zhicheng Song Ke Qin Xiaokang Yao Zhijian Yang Xiaoze Wang He Wang Zhuang Liu Chengzhu Yin Huili Ma Kang Shen Huifang Shi Jun Yin Qiushui Chen Zhongfu An Wei Huang | 2023 | Research2023，，4： | 1 |
| 8 | The Gas Mass Flow Measurement based on Multi-Sensor Information Fusion显示文摘 | Weiguo Zhao Zhihuan Song Guowei Liang | 2008 | Proceedings of the 7th World Congress on Intelligent Control and Automation[C]//Chongqing2008，，： | 1 |
| 9 | Developing super-hydrophobic and corrosion-resistant coating on magnesium-lithium alloy via one-step hydrothermal processing显示文摘Formation of super-hydrophobic and corrosion-resistant coatings can provide significant corrosion protection to magnesium alloys.However,it remains a grand challenge to produce such coatings for magnesium-lithium alloys due to their high chemical reactivity.Herein,a one-step hydrothermal processing was developed using a stearic-acid-based precursor medium,which enables the hydrothermal conversion and the formation of low surface energy materials concurrently to produce the super-hydrophobic and corrosion-resistant coating.The multiscale microstructures with nanoscale stacks and microscale spheres on the surface,as well as the through-thickness stearates,lead to the super-hydrophobicity and excellent corrosion resistance of the obtained coating. | Guowei Wang Dan Song Yanxin Qiao Jiangbo Cheng Huan Liu Jinghua Jiang Aibin Ma Xiaolong Ma | 2023 | Journal of Magnesium and Alloys2023，11，4： | 1 |
| 10 | The effects of the water-extraction of Astragali Radix and Lycopi herba on the pathway of TGF-smads-UPP in a rat model of diabetic nephropathy 显示文摘 | FU Xiao SONG Bing TIAN Guowei | 2014 | Pharmacogn Mag2014，10，40： | 1 |
| 11 | Comprehensive evaluation on self-ignition risks of coal stockpiles using fuzzy AHP approaches显示文摘 | Zeyang Song Hongqing Zhu Guowei Jia Chaonan He | 2014 | Journal of Loss Prevention in the Process Industries2014，，32： | 1 |
| 12 | Posttreatment of effluent fromcoke-plant wastewater treatment system in seguencing batch reactors显示文摘 | YU Huanqing GU Guowei SONG Leping | 1997 | J Environ Eng1997，123，3： | 1 |
| 13 | Simultaneous generation of electricity, ethylene and decomposition of nitrous oxide via protonic ceramic fuel cell membrane reactor显示文摘Ethylene,one of the most widely produced building blocks in the petrochemical industry,has received intense attention.Ethylene production,using electrochemical hydrogen pump-facilitated nonoxidative dehydrogenation of ethane(NDE)to ethylene,is an emerging and promising route,promoting the transformation of the ethylene industry from energy-intensive steam cracking process to new electrochemical membrane reactor technology.In this work,the NDE reaction is incorporated into a BaZr_(0.1)Ce_(0.7)Y_(0.1)Yb_(0.1)O_(3-δ)electrolyte-supported protonic ceramic fuel cell membrane reactor to co-generate electricity and ethylene,utilizing the Nb and Cu doped perovskite oxide Pr_(0.6)Sr_(0.4)Fe_(0.8)Nb_(0.1)Cu_(0.1)O_(3-δ)(PSFNCu)as anode catalytic layer.Due to the doping of Nb and Cu,PSFNCu was endowed with high reduction tolerance and rich oxygen vacancies,showing excellent NDE catalytic performance.The maximum power density of the assembled reactor reaches 200 mW cm^(-2)at 750℃,with high ethane conversion(44.9%)and ethylene selectivity(92.7%).Moreover,the nitrous oxide decomposition was first coupled in the protonic ceramic fuel cell membrane reactor to consume the permeated protons.As a result,the generation of electricity,ethylene and decomposition of nitrous oxide can be simultaneously obtained by a single reactor.Specifically,the maximum power density of the cell reaches 208 mW cm^(-2)at 750℃,with high ethane conversion(45.2%),ethylene selectivity(92.5%),and nitrous oxide conversion(19,0%).This multi-win technology is promising for not only the production of chemicals and energy but also greenhouse gas reduction. | Song Lei Ao Wang Guowei Weng Ying Wu Jian Xue Haihui Wang | 2023 | Journal of Energy Chemistry2023，，2： | 0 |
| 14 | Function of anaerobic portion in a conventional sequencing batch reactor显示文摘The performance of SBRs treating two kinds of wastewater(synthetic wastewater con-taining polyvinyl alcohol and effluent from a coke-plant wastewater treatment system)was investi-gated in this study,in order to examine the exact function of anaerobic portion in a conventionalSBR.The set up of 4-or 8-hour anaerobic mixing period in a SBR’s cycle did not benefit for PVAdegradation.While an anaerobic reactor seeded with anaerobic sludge could partly hydrolyse andacidify PVA into readily-degradable intermediates.During the anaerobic fill period of an SBR treat-ing the effluent from a coke-plant wastewater treatment system,the organic concentration was re-duced to certain extent due to the adsorption of activated sludge and dilution of the mixed liquorfrom the previous cycle.Parts of readily-degradable organics in the influent were utilised by denitri-fiers as carbon source.The biomass in a conventional SBR was alternatively imposed to aerobic andanaerobic conditions in its operating cycle,the environmental conditions needed for anaerobic hy-drolization and acidification of refractory organics could not occur in such an SBR. | Yu Hangqing School of Civil & Structural Engineering,Nanyang Technological University,639798,SingaporeGu Guowei Song Lepin School of Environmental Engineering,Tongji University,Shanghai 200092,China | 1997 | Journal of Environmental Sciences1997，9，1： | 0 |
| 15 | China's reform of the regulatory system for medical products and its impact显示文摘On 9 August 2015, the State Council of the People’s Republic of China issued ‘The Opinions on Reforming Review and Approval Process for Drugs and Medical Devices’(GUOFA[2015] No. 44). This important policy document not only provides the guideline for creating a more scientific and efficient regulatory process for drugs and medical devices, but also initiates the reform of the administration system for medical products in China. In October 2017, the general office of the Communist Party of China Central Committee and the general office. | Ruilin Song Guowei Sang Meiyu Geng Hualiang Jiang | 2019 | National Science Review2019，6，1： | 0 |
| 16 | Optimal Concentration of the Bubble Drainage Agent in Foam Drainage Gas Recovery Applications显示文摘Foam drainage is theflow of liquid through the interstitial spaces between bubbles driven by capillarity and grav-ity and resisted by viscous damping.The so-called foam drainage gas recovery technology is a technique tradi-tionally used to mitigate the serious bottom-hole liquid loading in the middle and late stages of gas well production.In this context,determining the optimal concentration of the bubble drainage agent is generally cru-cial for the proper application of this method.In this study,a combination of indoor experiments and theoretical analysis have been used to determine the pressure drop related to the foam-carrying capacity in a representative gasfield.Dynamic and static experiments were designed with a bubble drainage agent concentration varying in the range 0.3%–0.6%.Using thefield formation water data,the optimal soaking agent concentration was obtained and pressure drop test experiments on the foam carrying capacity were conducted accordingly.These tests have revealed that the optimal foam displacement agent concentration is 0.5%,and the foam quality at the optimum concentration is between 0.78–0.98.A theoretical method for calculating the pressure drop at the optimum soak-away concentration based on experimental data has also been introduced.The error of the proposed method is within 15%compared to the experimental measured value,demonstrating that it is highly accurate and simple. | Shaopeng Liu Guowei Wang Pengfei Liu Dong Ye Jian Song Xing Liu Yang Cheng | 2023 | Fluid Dynamics & Materials Processing2023，19，12： | 0 |
| 17 | Effect of cold stratification on the temperature range for germination of Pinus koraiensis显示文摘Germination at low spring temperatures may offer a competitive advantage for the growth and survival of plant species inhabiting temperate forest ecosystems.Pinus koraiensis is a dominant species in temperate forests of northeastern China.Its seeds exhibit primary morphophysiological dormancy following dispersal in autumn,limiting natural or artificial regeneration:direct seeding and planting seedlings in spring.The aim of this study was to determine the optimum cold stratification temperature that induces germination to increase towards lower temperatures.Seeds from two populations(Changbaishan and Liangshui)were cold stratified at 0,5 and 10℃.Germination to incubation temperatures(10/5,20/10,25/15 and 30/20℃;14/10 h day/night)were determined after 2 and 4 weeks,and 5.5 and6.5 months of cold stratification.After 5.5 months,approximately 68-91%of seeds from both populations germinated at incubation temperatures of 25/15℃and 30/20℃,regardless of cold stratification temperatures.When the cold stratification temperature was reduced to 0℃and the period increased to 6.5 months,germination at 10/5℃significantly improved,reaching 37%and 64%for the Changbaishan and Liangshui populations,respectively.After 6.5 months of cold stratification,there was a significant linear regression between cold stratification temperatures and germination at10/5℃.The range in temperatures allowing for germination gradually expanded to include lower temperatures with decreasing cold stratification temperatures from 10 to 5℃and further to 0℃. | Yuan Song Xinghuan Li Mingyi Zhang Guowei Xia Chao Xiong | 2023 | Journal of Forestry Research2023，34，1： | 0 |
| 18 | Positive Solutions of Fourth-Order Equations under Nonlocal Boundary Value Conditions of Sturm-Liouville Type显示文摘In this paper, we study the fourth-order problem with the first and second derivatives in nonlinearity under nonlocal boundary value conditions of Sturm-Liouville type involving Stieltjes integrals. Some inequality conditions on nonlinearity are presented that guarantee the existence of positive solutions to the problem by the theory of fixed point index on a special cone. Some examples are provided to support the main results under mixed boundary conditions containing multi-point with sign-changing coefficients and integral with sign-changing kernel. | Chunlei SONG Wei CHEN Guowei ZHANG | 2023 | Journal of Mathematical Research with Applications2023，43，1： | 0 |
| 19 | Bio-inspired Attachment Mechanism of Dynastes Hercules:Vertical Climbing for On-Orbit Assembly Legged Robots显示文摘With the increasing size of space facilities,on-orbit assembly requires robots to move on different heights of trusses.This paper proposes a bio-inspired attachment mechanism for robot feet to enable climbing on different heights of trusses.Inspired by the attachment and grasping abilities of Dynastes Hercules,we utilize its foot microstructures,such as microhooks and setae,to achieve efficient contact and firm grip with the surface.The morphology and arrangement of these structures can inspire the design of robot feet to improve their grasping and stability performance.We study the biological structure of Dynastes Hercules,design and optimize the bio-inspired structure,analyze the influence of various factors from theoretical and experimental perspectives,and verify the feasibility of the scheme through simulation.We propose an ideal climbing strategy that provides useful reference for robot applications in practice.Moreover,the influence laws of various factors in this paper can be applied to robot foot design to improve their operation ability and stability performance in the space environment.This bio-inspired mechanism can improve robot working range and efficiency,which is critical for on-orbit assemblyin space. | Yuetian Shi Xuyan Hou Zhonglai Na Jie Zhou Nan Yu Song Liu Linbo Xin Guowei Gao Yuhui Liu | 2024 | Journal of Bionic Engineering2024，21，1： | 0 |
| 20 | Enhancement of a recombinase-aided amplification assay using betaine and pullulan显示文摘Background:Nucleic acid amplification enhancers suitable for use in a recombinase-aided amplification(RAA)assay were studied for the first time,and amplification of a long-fragment(509 bp)was initially explored.Methods:Using recombinant plasmids and clinical samples,RAA fluorescence and basic methods were used to evaluate the efficacy.The fluorescence method was evaluated by threshold time and fluorescence value,and the basic method was characterized by 2%agarose gel electrophoresis.Results:Taking a previously established RAA assay for HPV18 as an example,we demonstrated that the addition of 0.2 M,0.4 M,and 0.6 M betaine and 10%pullulan could enhance the RAA.The new RAA assays with betaine and pullulan were named B-RAA and P-RAA,respectively.Using the B-RAA and P-RAA fluorescence methods,the threshold time values could be shortened by 1.72-2.32 minutes and 2.60 minutes,respectively,and the fluorescence values could be enhanced by 8847.25-9094.37 mv and 5250 mv,respectively.Using the basic method,the sensitivity could be increased 10-fold.We successfully amplified a long-fragment of 509 bp using a P-RAA assay with a sensitivity of 102 copies/μL(compared with 103 copies/μL in the RAA assay).Conclusions:Thus,we concluded that betaine and pullulan are effective additives to enhance the sensitivity of RAA assays. | Jinrong Wang Guowei Song Yue Ming Jing Pan Ruiqing Zhang Guohao Fan Xinxin Shen Xuejun Ma Lixin Li | 2022 | Infectious Medicine2022，1，2： | 0 |
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