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19篇 您的检索式:作者名="Wanming Zhang"
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1The uplifting and denudation of main Huangshan Mountains,Anhui Province,China显示文摘The Huangshan Mountain Geopark is an important geological landmark and tourist attraction.In this paper,we apply fission track dating to examine the uplift and exhumation processes that created the Huangshan Mountains and provide a timeline for their development.In addition to being an important scientific contribution,this information can be used on guided tours and to promote tourism.The results of eight apatite fission-track analyses suggest three age groups:56,45-30,and 15 Ma.These age groups are related to the uplifting-erosion processes involved in forming ancient multilevel denudation planes at 85-50,45-30,and 24-5 Ma,respectively.The scenic area has experienced three stages of thermal evolution.The first stage occurred before 80 Ma and the third stage after 13 Ma.The three stages had varying cooling rates:2.69,0.62,and 4.23°C/Ma,respectively.Uplifting rates also varied:0.08,0.02,and 0.12 mm/a.The uplifting ranges were also variable:1.14,1.57,and 4.00 km,respectively.Significant uplifting differences between diverse areas are obvious and there were four magnitudes of cumulative uplifting range:4060-3950,3760-3490,3190-3070,and 2650 m.The surface uplifting range varied from 450 to 2230 m.Denudation and uplifting amount averaged 2340 and 3400 m,respectively.The 1060 m difference between them is the average elevation at present.YUAN WanMing YANG ZhiQiang ZHANG ZhaoChong DENG Jun 2011Science China Earth Sciences2011,54,8:21
2Geologic relationships and geochronology of the Cenozoic volcanoes and interbedded weathered mantles of Yulinshan in Qiangtang, North Tibet显示文摘The Yulinshan accumulations of volcanic rocks and interbedded weathered mantles provide a unique chance for studying the processes and environment of the formation of the planation surface in central Tibetan Plateau. Geochemical, 40Ar/39Ar and K/Ar geochronologic investigations of the weathered mantles and high-potassium volcanic rocks reveal that the volcano-weathered mantle accumulations formed under arid or semi-arid subtropic environment in 30-24 Ma. The sole planation surface of the Qiangtang region finally formed in about 20 Ma.Lin Ding Yong Zhou Jingjiang Zhang Wanming Deng 2000Chinese Science Bulletin2000,45,24:11
3K-Ar age of the Cenozoic volcanic rocks in the Nangqen Basin, Qinghai Province and its geological significance显示文摘The Nangqen Basin is one of the typical shearing-extensional basins situated in the north part of the Hengduan Mts. Nine ages of the Cenozoic volcanic rocks from the basin by K-Ar isotope-dilution technique have been reported in the note. The apparent ages of whole rock and separated biotite range from 32.04 to 36.50 Ma. The 40Ar-K (%) correlation isochronal line shows that there existed neither argon excessing , nor radiogenetic argon loosing, i.e. the age represents the true diagenetic time. Volcanic activity in this area occurred in the post-collision environment and is controlled by lithosphere substantial thickening and violent intercontinental shearing-strike slip faults. There is age difference of the magmatic activity in the east, the west and the north Tibet. The multi-periodic eruption-intrusion of the magmatic melt since Cenozoic is a tracer showing the pulsating uplift of the Tibetan Plateau.DENG Wanming SUN Hongjuan ZHANG Yuquan 2000Chinese Science Bulletin2000,45,11:7
4Effect of Solidification Condition on Microstructure and Mechanical Properties of Single Crystal Superalloy显示文摘CMSX-2 single crystals with different primary dendrite arm spacing were obtained on directional solidification apparatus with high temperature gradient (250 K/cm). The microstructure and elevated temperature stress rupture properties of these single crystals were examined and analyzed.Wanming ZHANG Wei DU and Hengzhi FU State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China 2001Journal of Materials Science & Technology2001,17,1:6
5Petrogenesis of Cenozoic Potassic Volcanic Rocks in the Nangqen Basin显示文摘The Nangqên basin is one of the Tertiary pull-apart basins situated in the east of the Qiangtang block. Similar to the adjacent Dengqên basin and Baxoi basin, there occurred a series of potassic volcanic and sub-volcanic rocks, ranging from basic, intermediate to intermediate-acid in lithology. Based on the study of petrology, mineralogy and geochemistry, including REEs, trace elements, isotopic elements and chronology, the authors concluded that the Cenozoic potassic volcanic rocks in the Nangqên basin were formed in the post-collisional intraplate tectonic settings. The relations between the basic, intermediate and intermediate-acid rocks are neither differentiation nor evolution, but instead the geochemical variability is mainly attributable to the different partial melting degrees of the mantle sources formed at depths of 50(80 km.The sources of the potassic rocks are enriched metasomatic mantle that has experienced multiple mixing of components mainly derived from the crust. The recycling model can be described as follows: after they had subducted to the mantle wedge, the crust-derived rocks were metasomatized with the mantle materials. In view of the fact that the ratio of crust-derived rocks increases by the age of volcanism, it can be concluded that the sources of the potassic rocks moved upwards progressively with time.The underplating of small scattered magmas upwelling from the asthenosphere may have induced partial melting of the sources of the volcanic rocks in some pull-apart basins in the Hengduanshan area and the intense tectonic movements of large-scale strike-slip belts provided conduits for the ascending melts.SUN Hongjuan DENG Wanming ZHANG Yuquan 2001Acta Geologica Sinica(English Edition)2001,75,1:4
6Effect of the drive system on locomotive dynamic characteristics using different dynamics models显示文摘Based on the theory of vehicle-track coupled dynamics and gear system dynamics, a locomotive-track coupled spatial dynamics model is established by considering the dynamic effects of the gear transmission system. The vibration responses of a locomotive's major components are then simulated using three locomotive-track models, namely the proposed dynamics model with the gear transmissions, a locomotive-track coupled dynamics model that considers the traction motor, and the classical Zhai's model. The locomotive dynamic responses of the three models are extracted and compared to reveal discrepancies between them so as to explore the dynamic effects of the power transmission system and clarify potential applications of these models. The results indicate that the dynamic effects of the gear transmissions have a negligible influence on the lateral vibrations of the locomotive components. However, they have obvious effects on the vertical and longitudinal vibrations of the wheelset and the traction motor. Another advantage of the locomotive dynamics model that considers the dynamic effects of the gear transmissions is that the dynamic performance of the drive system can be assessed in the vehicle vibration environment. This study provides theoretical references that can assist researchers in choosing the most appropriate locomotive dynamics model according to their specific research purpose.ZHANG Tao CHEN ZaiGang ZHAI WanMing WANG KaiYun WANG Hong 2019Science China(Technological Sciences)2019,62,2:3
7Noonan syndrome/leukemia- associated gain-of-function mutations in SHP-2 Phosphatase (PTPN 11) enhance cell migration and angiogenesis显示文摘Siying Wang Wen-Mei Yu Wanming Zhang 2009J Biol Chem2009,284,2:1
8Water-soluble antioxidants improve the antioxidant and anticancer activity of low concentrations of curcumin in human leukemia cells 显示文摘CHEN J WANMING D ZHANG D 2005Pharmazie2005,60,:1
9Research on the Law of Garlic Price Based on Big Data显示文摘In view of the frequent fluctuation of garlic price under the market economy and the current situation of garlic price,the fluctuation of garlic price in the circulation link of garlic industry chain is analyzed,and the application mode of multidisciplinary in the agricultural industry is discussed.On the basis of the big data platform of garlic industry chain,this paper constructs a Garch model to analyze the fluctuation law of garlic price in the circulation link and provides the garlic industry service from the angle of price fluctuation combined with the economic analysis.The research shows that the average price rate of the price of garlic shows“agglomeration”and cyclical phenomenon,which has the characteristics of fragility,left and a non-normal distribution and the fitting value of the GARCH model is very close to the true value.Finally,it looks into the industrial service form from the perspective of garlic price fluctuation.Feng Guo Pingzeng Liu Chao Zhang Weijie Chen Wei Han Wanming Ren Yong Zheng Jianrui Ding 2019Computers, Materials & Continua2019,,3:1
10An Application Layer Multicast Approach Based on Topology-aware Clustering显示文摘Zhang Xinchang Li Xiaodong Luo Wanming 2009Computer Communications2009,32,6:1
11Water-soluble antioxidants improve the antioxidant and anticancer activity of low concentrations of curcumin in human leukemia cells 显示文摘Chen J Wanming D Zhang D 2005Pharmazie2005,60,:1
12Spatial Quantitative Analysis of Garlic Price Data Based on ArcGIS Technology显示文摘In order to solve the hidden regional relationship among garlic prices,this paper carries out spatial quantitative analysis of garlic price data based on ArcGIS technology.The specific analysis process is to collect prices of garlic market from 2015 to 2017 in different regions of Shandong Province,using the Moran's Index to obtain monthly Moran indicators are positive,so as to analyze the overall positive relationship between garlic prices;then using the geostatistical analysis tool in ArcGIS to draw a spatial distribution Grid diagram,it was found that the price of garlic has a significant geographical agglomeration phenomenon and showed a multi-center distribution trend.The results showed that the agglomeration centers are Jining,Dongying,Qingdao,and Yantai.At the end of the article,according to the research results,constructive suggestions were made for the regulation of garlic price.Using Moran’s Index and geostatistical analysis tools to analyze the data of garlic price,which made up for the lack of position correlation in the traditional analysis methods and more intuitively and effectively reflected the trend of garlic price from low to high from west to east in Shandong Province and showed a pattern of circular distribution.Guojing Wu Chao Zhang Pingzeng Liu Wanming Ren Yong Zheng Feng Guo Xiaowei Chen Russell Higgs 2019Computers, Materials & Continua2019,,1:1
13Research on the Relationship Between Garlic and Young GarlicShoot Based on Big Data显示文摘In view of the problems such as frequent fluctuation of garlic price, lack ofefficient forecasting means and difficulty in realizing the steady development of garlicindustry, combined with the current situation of garlic industry and the collected datainformation. Taking Big Data platform of garlic industry chain as the core, using themethods of correlation analysis, smoothness test, co-integration test, and Grangercausality test, this paper analyzes the correlation, dynamic, and causality between garlicprice and young garlic shoot price. According to the current situation of garlic industry,the garlic industry service based on Big Data is put forward. It is concluded that there is apositive correlation between garlic price and young garlic shoot price, and there is a longtermstable dynamic equilibrium relationship between young garlic shoot price and garlicprice fluctuation, and young garlic shoot price can affect garlic price. Finally, it isproposed to strengthen the infrastructure construction of garlic Big Data, increase thetechnological innovation and application of garlic Big Data technology, and promote thesafety and security ability of the whole industry to promote the development of garlicindustry.Feng Guo Pingzeng Liu Wanming Ren Ning Cao Chao Zhang Fujiang Wen Helen Min Zhou 2019Computers, Materials & Continua2019,,2:1
14Characterization of Bacillus amyloliquefacien contaminating 75%alcohol disinfectant显示文摘The clinical characterization of Bacillus amy-loliquefacien contaminating 75%alcohol disinfectants were studied.The bacteria were cultured and observed by using bacterial examination under the hospital infec-tion monitor.According to the regulations,the resistance of bacterial to physical and chemical factors was tested.Drug sensitivity tests for 20 commonly used medicines were carried out using a K-B method.The bacterial plas-mids were analyzed using the Birnboim method.The bac-teria were found after being cultured in the clinically-used 75%alcohol disinfectant fluid.Their total number was more than 800 cfu/mL and they were identified as Bacillus amyloliquefacien.The bacteria were also found to be resistant to boiling for 5 min.It grew well in 95%alcohol disinfectant and was insensitive to 84 disinfectant fluids containing chlorine(1000 mg/L)and such disinfec-tants as ozone.They were able to be sterilized better through routine ultraviolet exposure for 30 min or gas pressure.The bacteria contained a 2.5 kb plasmid and were sensitive to 13 drugs and insensitive to 7 drugs of the 20 drugs tested.It was suggested that alcohol dis-infectant fluid was easily contaminated by Bacillus amy-loliquefacien,and the bacteria was resistant to disinfectant fluids such as alcohol and 84 disinfectants.Wanming ZHANG Yuesha YUAN Cangli BIAN Wen ZHANG Lan WANG Xianyu TU Huqiang HUANG 2008Frontiers of Medicine2008,2,1:0
15Development and Application of Big Data Platform for Garlic Industry Chain显示文摘In order to effectively solve the problems which affect the stable and healthy development of garlic industry,such as the uncertainty of the planting scale and production data,the influence factors of price fluctuation is difficult to be accurately analyzed,the difficult to predict the trend of price change,the uncertainty of the market concentration,and the difficulty of the short-term price prediction etc.the big data platform of the garlic industry chain has been developed.Combined with a variety of data acquisition technology,the information collection of influencing factors for garlic industry chain is realized.Based on the construction of the big data technology platform,the real-time synchronous acquisition,efficient storage and analysis of the planting,market,storage,processing,export and logistics information in five provinces and seven counties are realized.The application of the big data platform for garlic industry chain has realized the accurate acquisition of garlic planting area,the price and trend of market circulation and the information of export information,analyzed the fluctuation regulation of garlic price,and also realized the short-term precision prediction of garlic price.Weijie Chen Guo Feng Chao Zhang Pingzeng Liu Wanming Ren Ning Cao Jianrui Ding 2019Computers, Materials & Continua2019,,1:0
16Dynamic performance of vehicle in high-speed freight EMU equipped with four double-axle bogies显示文摘Size and weight limitations mean that ordinary railway vehicles with two double-axle bogies cannot deliver some extremely heavy cargo and products.Thus,a newly designed high-speed freight electric multiple unit(EMU)equipped with two bogie groups each with two double-axle bogies connected by a transition frame is an alternative means of transporting heavy products because of its greater load capacity.However,because it is still in the design stage,its dynamic performance is yet to be researched,something that is urgently required because of the more-complicated structure and more-intensive wheel-rail interactions than those of traditional high-speed railway vehicles.Therefore,to reveal the dynamic performance,this study establishes a three-dimensional dynamic model of a trailer vehicle in a high-speed freight EMU equipped with four double-axle bogies based on the classical theory of vehicle-track coupled dynamics.In this dynamic model,the vertical,horizontal,rolling,pitching,and yaw motions of the major components excited by random irregularities in the track geometry are considered fully.The results indicate that the derailment coefficient and stability index of this vehicle are both at excellent levels for the simulated conditions.The wheel unloading ratio appears to be larger but still within the safety range when the vehicle runs in a straight line,but it is close to or can even exceed the limit value when the vehicle runs at 400 km/h on a specified curved line.ZHANG WeiLi CHEN ZaiGang WANG KaiYun WANG JiaXin ZHAI WanMing 2021Science China(Technological Sciences)2021,64,2:0
17Creating a New Chinese Discourse on Political Economy: The Innovative Development of China's Private Sector Theory显示文摘Ever since China implemented its reform and opening up policy in the late 1970s,it has engaged in theoretical and practice-based innovations in the development of its private sector.China has experienced four evolutionary stages of private sector development and theoretical innovation:from proposing that the private sector was “subsidiary and complementary to the socialist public sector,” to elevating it to the heights of China’s “basic economic system”;from adhering to the principle of “the two unwaverings,” i.e.,unwaveringly consolidating and developing the public sector on the one hand,and unwaveringly encouraging,supporting,and guiding the development of the non-public sector on the other;and thence to further stating explicitly that “private enterprises and private sector entrepreneurs are one of us;they are socialist.” New theories of private sector development have been created in response to the inherent requirements of the primary stage of socialism,to the choice of the correct path to common prosperity,and to the human behavioral rationality and the laws governing people’s interest claims.The private sector is an important achievement of the development of the socialist market economy;an important force promoting the development of the socialist market economy;and an important actor in the building of the modern economic system.Creating new theories of private sector development has opened up a new realm for Marxist political economy.Zhang Wanming Liu Yingqiu 邵亚楠 2022Social Sciences in China2022,43,1:0
18Serum erythropoietin and transferrin in children with idiopathic nephrotic syndrome显示文摘Idiopathic nephrotic syndrome(INS)is char-acterized by marked urinary excretion of albumin and other intermediate-sized plasma proteins,such as trans-ferrin and vitamin D-binding protein.Some cases even develop anemia.The aim of this study was to investigate the changes in serum iron,transferrin,and erythropoietin,and the relationships between serum and urine transferrin and erythropoietin.Thirty-seven children with INS and 35 age-and sex-matched healthy children were investi-gated.The indexes related to iron metabolism,including serum iron,ferritin,transferrin,total iron-binding capa-city(TIBC),transferrin saturation,and hematological parameters[hemoglobin(Hb),mean corpuscular volume(MCV),mean corpuscular hemoglobin(MCH)],and urin-ary transferrin and erythropoietin were measured in 37 children with INS before treatment and at the remission stage.Thirty-five age-and sex-matched healthy children served as controls.Serum iron levels(18.8±3.8)mmol/L in INS patients before treatment were significantly lower than those of the healthy controls(22.2±3.8)mmol/L and those measured at the remission stage(21.0±3.5)mmol/L(all P<0.01).Serum transferrin levels in INS patients before therapy(1.9±0.3)g/L also decreased compared with the healthy controls(3.1±0.5)g/L and the measures at the remission stage(2.9±0.6)g/L(all P<0.01).In contrast,serum TIBC and transferrin saturation were sig-nificantly higher in INS patients before treatment than in the healthy controls[TIBC(56.4±9.2)mmol/L vs(50.7±6.8)mmol/L,P<0.01;transferrin saturation(55.7±9.2)%vs(46.4±8.2)%,P<0.01]and they were also higher than the measures at remission stage[(51.9±7.7)mmol/L and(47.4±13.3)mmol/L](all P<0.01).Serum transferrin was positively correlated with serum albumin(r= 50.609,P<0.01)and negatively correlated with urinary transferrin(r= 520.550,P<0.01)in INS patients before treatment.We conclude that serum iron,transferrin and erythropoietin levels are markedly decreased in INS patients,which may be partially related to the urinary loss of these indexes.Hongzhu LU Lin WANG Qihong FAN Dan LIU Wanming ZHANG Yuesha YUAN Hongyan KUANG 2008Frontiers of Medicine2008,2,3:0
19Microstructure design of advanced magnesium-air battery anodes显示文摘Metal-air battery is an environmental friendly energy storage system with unique open structure.Magnesium(Mg)and its alloys have been extensively attempted as anodes for air batteries due to high theoretical energy density,low cost,and recyclability.However,the study on Mg-air battery(MAB)is still at the laboratory level currently,mainly owing to the low anodic efficiency caused by the poor corrosion resistance.In order to reduce corrosion losses and achieve optimal utilization efficiency of Mg anode,the design strategies are reviewed from microstructure perspectives.Firstly,the corrosion behaviors have been discussed,especially the negative difference effect derived by hydrogen evolution.Special attention is given to the effect of anode micro-structures on the MAB,which includes grain size,grain orientation,second phases,crystal structure,twins,and dislocations.For further improvement,the discharge performance,long period stacking ordered phase and its enhancing effect are considered.Meanwhile,given the current debates over Mg dendrites,the potential risk,the impact on discharge,and the elimination strategies are discussed.Microstructure control and single crystal would be promising ways for MAB anode.Xu Huang Qingwei Dai Qing Xiang Na Yang Gaopeng Zhang Ao Shen Wanming Li 2024Journal of Magnesium and Alloys2024,12,2:0
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