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| 1 | Tectonic Evolution of the Middle Frontal Area of the Longmen Mountain Thrust Belt,Western Sichuan Basin,China显示文摘由分析平衡的生气的节和 Longmen 山戳带的沉淀历史,中国,我们断定它经历了五个构造阶段:(1 ) 形成阶段(T 3 x ) Longmen 的缩影,山,早 Indosinian 运动,和 Anxian 构造运动创造了 Longmen 山;(2 ) 稳定的构造阶段(更弱的构造运动导致了 Longmen 山戳带的 J 1) 稍微正在被高举并且稍微减退低岬盆;(3 ) 强烈构造阶段(J2.3 ) ,也就是早 Yanshan 运动;(4 ) 连续构造运动(K-E ) ,也就是迟了的 Yanshan 运动和早喜玛拉雅的运动;并且(5 ) Longmen 山(N-Q ) 的形成,也就是晚喜玛拉雅的运动。在那些构造变丑阶段期间, Anxian 运动和喜玛拉雅的运动在 Longmen 山的形成起了重要作用。喜玛拉雅的运动影响了 Longmen 山大多数;阶层强烈地推进了并且严重地被侵蚀。因为一些越过水坝落下的水被推,在 Longmen 山戳带的中间的部分有某 klippes 在以后向东南构造变丑。 | JIN Wenzheng TANG Liangjie YANG Keming WAN Guimei Lü Zhizhou YU Yixin | 2009 | Acta Geologica Sinica(English Edition)2009，83，1： | 10 |
| 2 | Influences of affiliated components and train length on the train wind显示文摘The induced airfl w from passing trains,which is recognized as train wind,usually has adverse impacts on people in the surroundings,i.e.,the aerodynamic forces generated by a high-speed train's wind may act on the human body and endanger the safety of pedestrians or roadside workers.In this paper,an improved delayed detached eddy simulation(IDDES) method is used to study train wind.The effects of the affiliate components and train length on train wind are analyzed.The results indicate that the aff liated components and train length have no effect on train wind in the area in front of the leading nose.In the downstream and wake regions,the longitudinal train wind becomes stronger as the length of the train increases,while the transverse train wind is not affected.The presence of affiliate components strengthens the train wind in the near fiel of the train because of strong fl w solid interactions but has limited effects on train wind in the far | Dilong Guo Keming Shang Ye Zhang Guowei Yang Zhenxu Sun | 2016 | Acta Mechanica Sinica2016，32，2： | 10 |
| 3 | Differential Tectonic Deformation of the Longmen Mountain Thrust Belt,Western Sichuan Basin,China显示文摘地调查和地震的节解释证明 Longmen 山戳带有明显的微分变丑:带状配列,分割和层化。带状配列意味着那,从 NW 到 NE, Longmen 山戳带能被划分成 Songpan-Garz ê构造的带,可锻的变丑带,基础深奥的戳带,正面的褶层戳带,和低岬消沉。它能向南向北被划分成五个片断从到的分割工具:北片断, Anxian 转移地区,中心片断, Guanxian 转移地区和南部的片断。层化意味着分开层在侧面划分结构的式样。在 Longmen 山戳带的分开层能被分类进三个范畴:深水平的分开层包括外壳披风系统分开层, intracrustal 分开层,和 Presinian 系统基础分开层;中间级的分开层包括寒武纪奥陶纪的分开层,志留纪分开层,等等;并且浅水平的分开层,包括的上面的三叠纪的 Xujiahe 形成分开层和侏罗记分开层。多水平分开层在塑造和 Longmen 山戳带的进化上有很重要的效果。 | TANG Liangjie YANG Keming JIN Wenzheng WAN Guimei LüZhizhou YU Yixin | 2009 | Acta Geologica Sinica(English Edition)2009，83，1： | 6 |
| 4 | Numerical and experimental investigation into hypersonic boundary layer transition induced by roughness elements显示文摘In this work, the Direct Numerical Simulation(DNS) and Oil-Film Interferometry(OFI)technique are used to investigate the hypersonic boundary layer transition induced by single and double roughness elements at Mach number 5. For single roughness, the DNS results showed that both horseshoe vortices and hairpin vortices caused by shear layer instability can affect the boundary layer instability. The generation of the near-wall unstable structure is the key point of boundary layer transition behind the roughness element. At the downstream of the roughness element, the interaction between horseshoe vortices and hairpin vortices will spread in the spanwise direction.For double roughness elements, the effect of the spacing between roughness elements on the transition is studied. It is found that the case of higher spacing between roughness elements is more effective for inducing transition than the lower one. The interaction between two adjacent roughness elements can suppress the evolution of horseshoe vortices in the downstream and trigger the instability of shear layer. Thus, the transition will be suppressed accordingly. | Hao DONG Shicheng LIU Xi GENG Song LIU Liming YANG Keming CHENG | 2019 | Chinese Journal of Aeronautics2019，32，3： | 6 |
| 5 | Burial fluxes and sources of organic carbon in sediments of the central Yellow Sea mud area over the past 200 years显示文摘Long-term changes of composition,sources and burial fluxes of TOC(total organic carbon) in sediments of the central Yellow Sea mud area and their possible affecting factors are discussed in this paper.Firstly,similarity analysis is employed to confirm that the carbon burial features resulted from two collected cores are typical in the central Yellow Sea mud area where YSWC(Yellow Sea Warm Current) is prevalent.On this basis,the burial flux of TOC here was considered to be 235.5–488.4 μmol/(cm2?a) since the first industrial revolution,accounting for about 70%–90% among burial fluxes of TC(total carbon) in the sediments.Compared TOC/TC ratio in the two cores with that in other marine sediments worldwide,we suggest that the growth of calcareous/non-calcareous organisms and dissolution of IC(inorganic carbon) are important factors controlling the TOC/TC ratio in sediment.Results of two-end mixed model based on δ13C data indicate that marine-derived organic carbon(OCa)is the main part among total burial organic carbon which accounts for a ratio over 85%.Due to the high TOC/TC ratio in the two cores,TC in the sediments also mainly exists as OCa,and the proportion of OCa is about 60%–80%.Away from the shore and relatively high primary production in upper waters are the main reasons that OCa is predominant among all burial OC in sediments of the central Yellow Sea mud area.Burial of OC in this mud area is probably mainly influenced by the human activities.Although the economic development during the late 19 th century caused by the first industrial revolution in China did not obviously increase the TOC burial fluxes in the sediments,the rise of industry and agriculture after the founding of new China has clearly increased the TOC burial flux since 1950 s.Otherwise,we also realize that among TC burial fluxes,TIC account for about 10%–30% in sediments of the central Yellow Sea mud area,so its burial could not be simply ignored here.Distinct from TOC burial,long-term TIC burial fluxes variations relate with climate changes more closely:the East Asian summer monsoon may influence the strength of the Huanghe River(Yellow River) flood,which could further affect the transport of terrestrial IC from land to the central Yellow Sea as well as the burial of these IC in the sediments. | YANG Shu YANG Qian LIU Sai CAI Deling QU Keming SUN Yao | 2015 | Acta Oceanologica Sinica2015，34，10： | 3 |
| 6 | Research on Critical Flow of Water under Supercritical Pressures in Nozzles显示文摘 | Yuzhou Chen Minfu Zhao Chunsheng Yang Keming Bi Kaiwen Du Shuming Zhang | 2012 | Journal of Energy and Power Engineering2012，6，2： | 3 |
| 7 | Geologic Characteristics of Gas Reservoirs in West Sichuan Foreland Basin显示文摘摘要:在韦斯特四川的低岬盆是经历了多时期的一个构造单位 Indosinian-Yanshanian-Himalayan 的构造运动。后来迟了三叠纪,它在盆边缘山系统并且由压缩与丰富的沉积来源一起控制的被动沉淀环境。与复杂地质的背景,天然气水库的主要地质的特征如下被列出:(1 ) 来源岩石与高度到是忍受煤的泥和页岩系列在成熟,和长、进步的烃产生排水量时期上。关键累积时期是中间迟了的 Yanshanian 历元。(2 ) 其各个有不同水库机制,主要控制的因素和分发法律垂直地有三个煤气忍受的系统,探索想法和技术因此也是不同的。(3 ) 经历多时期 generation-migration-accumulation,油和气体遇到了多时期修正或破坏,和煤气的累积通过多重构造时期。陷井类型因此由联合陷井复杂、统治。因为天然气的主要累积时期是早的,水库遇到强壮的喜玛拉雅的运动的修正,在煤气的水库和复杂煤气水的关系的充分度有大差别。(4 ) 水库对紧张很紧密,但是水库相对,高质量在超级紧密的背景下面发展了。(5 ) 为在西方四川低岬盆的油和煤气的探索的关键技术是相对有利的水库,破裂并且煤气的适用的预言;并且为油和煤气的开发的关键技术是怎么改进穿入率,水库保护和修正。 | YANG Keming | 2008 | Acta Geologica Sinica(English Edition)2008，82，6： | 3 |
| 8 | The geometric simulation and analysis of the blind growth fold in the overthrust belt of the southern section of the frontier Longmen Mt.during Late Triassic显示文摘The seismic profiles processed by high-resolution display that a blind growth fault-bend fold emerges in depth of seismic exploration area in Dayi in the southern section of the frontier Longmen Mt.This paper presents a detailed structural interpretation to seismic section,then describes the deformed geometry related to the pre-growth strata,the growth strata and the post-growth strata on both limbs of the fold.The computer geometric simulation,based on the model of fault-bend fold,is utilized to stimulate the geometry of the blind growth fold at different sedimentation rates in Dayi.These structural features are subsequently extracted and compared with the actual seismic reflection section.Our research suggests that a low angle overthrust formed during Late Triassic also appears in the southern section of the frontier Longmen Mt.The event of structure took place at the depositional stage of a portion of the middle and upper fourth member of Xujiahe Formation(T3x4),which corresponds to thrusting in the northern section of the frontier Longmen Mt.However,the thrusting displacement here is smaller than one of the northern section. | CHEN Wei YANG KeMing LI ShuBin JIAN GaoMing TANG Jin ZHAO Yiao SU Qian | 2009 | Chinese Science Bulletin2009，54，8： | 3 |
| 9 | Ecophysiological responses of two closely related Magnoliaceae genera to seasonal changes in subtropical China显示文摘Aims Plants use a variety of hydraulic strategies to adapt to seasonal drought that differ by species and environmental conditions.The early-diverging Magnoliaceae family includes two closely related genera with contrasting leaf habits,Yulania(deciduous)and Michelia(evergreen),which naturally inhabit temperate and tropi-cal regions,respectively.Here,we evaluate the hydraulic strategy of species from both genera that have been ex situ conserved in a subtropical region to determine how they respond to the novel cool-dry season climatic pattern.Methods We measured ecophysiological traits in five Michelia and five Yulania species conserved in the South China Botanical Garden in both wet and dry season conditions and monitored the whole-year sap flow for four of these species.Important Findings We found that Magnoliaceae species that have been ex situ con-served in a subtropical climate did not suffer from excessive water stress due to the mild drought conditions of the dry season and the ecophysiological adjustments the species made to avoid this stress,which differed by leaf habit.Specifically,deciduous species com-pletely shed their leaves during the dry season,while evergreen species decreased their turgor loss points,dry mass based photo-synthetic rates,stomatal conductance and specific leaf areas(SLAs)compared to wet season measurements.In comparing the two dis-tinct leaf habits during the wet season,the leathery-leaved evergreen species had higher leaf hydraulic conductance and leaf to sapwood area ratios than the papery-leaved deciduous species,while the deciduous species had greater hydraulic conductivity calculated on both a stem and leaf area basis,dry mass based photosynthetic rates,leaf nutrients,SLAs and stomatal sizes than the evergreen species.Interestingly,species from both genera maintained similar sap flow in the wet season.Both photosynthetically active radia-tion and vapour pressure deficit affected the diurnal patterns of sap flow in the wet season,while only vapour pressure deficit played a dominant role in the dry season.This study reveals contrasting hydraulic strategies in Yulania and Michelia species under subtropi-cal seasonal conditions,and suggests that these ecophysiological adjustments might be affected more by leaf habit than seasonality,thus reflecting the divergent evolution of the two closely related genera.Furthermore,we show that Magnoliaceae species that are ex situ conserved in a subtropical climate are hydraulically sound,a finding that will inform future conservation efforts of this ancient family under the threat of climatic change. | Hui Liu Liwei Zhu Qiuyuan Xu Marjorie R.Lundgren Keming Yang Ping Zhao Qing Ye | 2018 | Journal of Plant Ecology2018，11，3： | 2 |
| 10 | Hydrocarbon Generation and Expulsion of the Upper Triassic T3x5Source Rocks in the Western Sichuan Depression: Assessment for Unconventional Natural Gas显示文摘Tight-sand gas in the Jurassic and shale gas within the fifth member of Xujiahe Formation(T3x5) in the Western Sichuan Basin(WSD) are currently regarded as the most prolific emerging unconventional gas plays in China. This study conducted a conventional evaluation of T3x5 source rocks in the WSD, and investigated their hydrocarbon generation and expulsion characteristics, including intensity, efficiency and amount. The results show that, the T3x5 source rocks are thick(generally >200 m), and have a high total organic content(TOC), ranging from 2.5 to 4.5 wt%. It is thus indivative of a great hydrocarbon generation potential when they underwent high thermal evolution(Ro>1.2%) in the area. In addition, an improved method of hydrocarbon generation potential is applied, indicating that the source rocks reached a hydrocarbon expulsion threshold with vitrinite reflectance(Ro) reaching 1.06%, and that the comprehensive hydrocarbon expulsion efficiency is about 60%. The amount of hydrocarbon generation and expulsion from T3x5 source rocks is 3.14×1010 t and 1.86×1010 t, respectively, with a residual amount of 1.28×1010 t within them. Continuous-type tight-sand gas is predicted to have developed in the Jurassic in the Chengdu Sag of the WSD because of the good source-reservoir configuration; the Jurassic sandstone reservoirs are tight, and the gas expelled from the T3x5 source rocks migrates for very short distances vertically and horizontally. The amount of gas accumulation in the Jurassic reservoirs derived from T3x5 source rocks is up to 9.3×108 t. Geological resources of shale gas are up to 1.05×1010 t. Small differences between the amounts calculated by the volumetric method and those obtained by hydrocarbon generation potential method may be due to other gas accumulations present within interbedded sands associated with gas shales. | GUO Yingchun SONG Yan PANG Xiongqi WANG Youwei YANG Keming LI Boyuan | 2015 | Acta Geologica Sinica(English Edition)2015，89，1： | 2 |
| 11 | A note on the Bahadur representation of sample quantiles for a - mixing random variables 显示文摘 | Guodong Xing Shunchao Yang Yah Liu Keming Yu | 2012 | Monatshefte ftir Mathematik2012，165，： | 1 |
| 12 | Study on the faults in Longmen Mountain Thrust Belt, western Sichuan foreland basin,China 显示文摘 | Wan Guimei Tang Liangjie Yang Keming | 2008 | Journal of China University of Geosciences2008，19，6： | 1 |
| 13 | Testing a Dynamic Complex Hypothesis in the Analysis of Land Use Impact on Lake Water Quality显示文摘 | QingHai Guo KeMing Ma Liu Yang Kate He | 2010 | Water Resources Management2010，，7： | 1 |
| 14 | Transfer zones of Longmen Mountain thrust beh, SW China 显示文摘 | Jin Wenzheng Tang Liangjie Yang Keming | 2009 | Geosciences Journal2009，13，1： | 1 |
| 15 | Institutional holes and entrepreneurship in China显示文摘 | Keming Yang | | 0，，03： | 1 |
| 16 | Influenza virus vaccine expressing fusion and attachment protein epitopes of respiratory syncytial virus induces protective antibodies in BALB/c mice显示文摘 | Chengrong Bian Shuzhen Liu Na Liu Guangzhou Zhang Li Xing Yingwei Song Yueqiang Duan Hongjing Gu Ya Zhou Peirui Zhang Zhiwei Li Keming Zhang Zhaohai Wang Shaogeng Zhang Xiliang Wang Penghui Yang | 2014 | Antiviral Research2014，，： | 1 |
| 17 | Critical Heat Flux with Subcooled Flowing Water in Tubes for Pressures from Atmosphere to Near-Critical Point显示文摘 | Yuzhou Chen Keming Bi Minfu Zhao Chunsheng Yang Kaiwen Du | 2016 | Journal of Energy and Power Engineering2016，10，4： | 1 |
| 18 | A comparative study of the impact of species composition on a freshwater phytoplankton community using two contrasting biotic indices显示文摘 | Qinghai Guo Keming Ma Liu Yang Qinghua Cai Kate He | 2009 | Ecological Indicators2009，，2： | 1 |
| 19 | Institutional holes and entrepreneurship in China显示文摘 | Keming Yang | 2004 | Sociological Review2004，52，3： | 1 |
| 20 | Preparation and Properties of Polyacrylamide/Sodium Alginate Hydrogel and the Effect of Fe^(3+)Adsorption on Its Mechanical Performance显示文摘The preparation and application of functional hydrogels based on natural polysaccharides have always been a hot research topic.In this study,using acrylamide(AM)monomer,N,N'-methylene bisacrylamide(MBA)as crosslinking agent,potassium persulfate(K2S2O8)as initiator,in the presence of natural polysaccharide sodium alginate(SA),the PAM/SA hydrogel was prepared by free radical polymerization.Fourier transform infrared spectroscopy(FT-IR),swelling performance tests,scanning electron microscope(SEM),thermogravimetric analysis(TGA),UV-visible spectrophotometer,mechanical property measurements were carried out to analyze the composition,morphology,and performance of the hydrogels.The swelling behavior,dye adsorption performance,and the mechanical properties of PAM/SA hydrogels before and after Fe^(3+)adsorption were studied.The experimental results showed that the introduction of SA with 4.7%,7.8%,and 10.3%effectively improved the mechanical and dye adsorption properties of PAM composite hydrogels.The adsorption capacity of PAM/4.7%SA and PAM/10.3%SA hydrogels at equilibrium can reach 40.01 and 44.02 mg/g for methylene blue,which is higher than the value 13.58 mg/g of pure PAM hydrogel.The compressive strength of pure PAM hydrogel is 0.124 MPa.When the SA content is 4.7%,7.8%,and 10.3%,the compressive strength of the PAM/SA hydrogel was corresponding to 0.130 MPa,0.134 MPa,and 0.152 MPa,respectively.Fe^(3+)was introduced into the PAM/SA hydrogels,and PAM/SA/Fe^(3+)double-network hydrogels with excellent mechanical properties could be prepared by adjusting the SA content(4.7%,7.8%,and 10.3%),soaking time(1 h,2 h,3 h,4 h,5 h,6 h),and Fe^(3+)concentration(4.76%,7.41%,9.09%,and 13.04%).Under the same Fe^(3+)concentration of 9.09%and adsorption time of 4 h,the compressive strengths of the PAM/4.7%SA,PAM/7.8%SA,and PAM/10.3%SA hydrogels could reach 0.354 MPa,0.767 MPa,and 0.778 MPa,respectively. | Zheng Cao Yang Zhang Keming Luo Yinqiu Wu Hongxin Gao Junfeng Cheng Chunlin Liu Guoliang Tao Qingbao Guan Lei Zhang | 2021 | Journal of Renewable Materials2021，9，8： | 1 |
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