|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | A new procedure to estimate the rainfall erosivity factor based on Tropical Rainfall Measuring Mission(TRMM) data显示文摘Soil erosion by water is the most important land degradation problem worldwide.In this paper a new procedure was developed to estimate the rainfall-runoff erosivity factor(R)based on Tropical Rainfall Measuring Mission(TRMM)satellite-estimated precipitation data,which consists of 3-h rainfall intensity data.In this method,R was calculated as the product of the maximum 180-min rainfall intensity and the rainfall energy.This procedure was applied to the Daling River basin in Liaoning Province,China,R in terms of yearly,monthly and event-based rainfall in 2005 was computed separately using TRMM 3B42 data.The TRMM data showed a significant correlation with the interpolated rain-gauge data.Furthermore,because the TRMM data are based on rainfall intensity,they can represent the impact on erosion more accurately.It reflects both the spatial distribution and the intensity of rainfall.The procedure is a new approach to estimate the rainfall erosivity for soil water erosion modeling,especially in areas lacking rain-gauge stations. | ZHU Qiang CHEN XiuWan FAN QiXiang JIN HePing LI JiRen | 2011 | Science China(Technological Sciences)2011，54，9： | 15 |
| 2 | Polygenetic Mineralization of the Early ProterozoicTongkuangyu Metaporphyry Copper Deposit inthe Zhongtiao Mountains,Shanxi Province显示文摘The Tongkuangyu metaporphyry copper deposit formed in the Early Proterozoic is tectonically located in the northern part of the Zhongtiao X -type palaeorift depression, on the southern margin of the North China platform. The genesis of the deposit has long been a hot subject of research of geologists working on mineral deposits. By means of the protolith reconstruction and fluid inclusion and isotope studies of host rocks of the deposits, the authors hold that this deposit is the product of combined exogenic, endogenic and metamorphic processes. Its formation mainly involved the following four stages: (1) the stage of formation of Mg- and Fe-rich tuffaceous variegated cupriferous sand-shale and K-rich biomodal volcanic rocks; (2) the early stage of formation of the metaporphyry copper deposit; (3) the stage of formation of the metaporphyry copper deposit; and (4) the stage of reworking of the metaporphyry copper deposit. | CHEN Wenming ZHANG Chengxin LU Jiren DANG Zefa LI Shuping CUI Wenbin NING Yuan | 1998 | Acta Geologica Sinica(English Edition)1998，72，2： | 7 |
| 3 | Enabling Energy Efficiency in 5G Network显示文摘The mobile Internet and Internet of Things are considered the main driving forc⁃es of 5G,as they require an ultra-dense deployment of small base stations to meet the in⁃creasing traffic demands.5G new radio(NR)access is designed to enable denser network deployments,while leading to a significant concern about the network energy consump⁃tion.Energy consumption is a main part of network operational expense(OPEX),and base stations work as the main energy consumption equipment in the radio access network(RAN).In order to achieve RAN energy efficiency(EE),switching off cells is a strategy to reduce the energy consumption of networks during off-peak conditions.This paper intro⁃duces NR cell switching on/off schemes in 3GPP to achieve energy efficiency in 5G RAN,including intra-system energy saving(ES)scheme and inter-system ES scheme.Addition⁃ally,NR architectural features including central unit/distributed unit(CU/DU)split and dual connectivity(DC)are also considered in NR energy saving.How to apply artificial in⁃telligence(AI)into 5G networks is a new topic in 3GPP,and we also propose a machine learning(ML)based scheme to save energy by switching off the cell selected relying on the load prediction.According to the experiment results in the real wireless environment,the ML based ES scheme can reduce more power consumption than the conventional ES scheme without load prediction. | LIU Zhuang GAO Yin LI Dapeng CHEN Jiajun HAN Jiren | 2021 | ZTE Communications2021，19，1： | 4 |
| 4 | Shallow Structure of the Crust in the Sulu-Dabie Region,China and its Seismotectonic Implication显示文摘The P-wave velocity structure in the shallow crust is investigated in and around the Sulu-Dabie region by using seismic reflection data for deep soundings in 48 survey profiles and from rock velocity determinations.The observed velocity distributions show obvious heterogeneities in this region.The low velocity anomalies are observed mainly in the west of the Dabie region and the East Sea regions.The high velocity anomalies emerge in the shallow crust of the Sulu and Dabie orogeny.These high-velocity anomalies can be attributed to the ultra-high pressure metamorphosed(UHPM)rock formed by exhumation motion of mantle materials during the orogeny.The high-velocity anomalies in the different shallow layers beneath the Sulu region are located to the northeast of the Tan-Lu fault.The high-velocity anomalies beneath the Dabie region are located southwest of the Tan-Lu fault.Such a distribution pattern of velocity anomaly zones may reveal historical motion of a left-lateral strike-slip for the Tan-Lu fault,which differs from the result of a right-lateral strike-slip motion regime known from modern seismology,indicating a more complex tectonic motion along the Tan-Lu fault. | XU Jiren LI Haibing QI Xuexiang ZHAO Zhixin | 2021 | Acta Geologica Sinica(English Edition)2021，95，3： | 2 |
| 5 | Isolation and characterization of Streptococcus gallolyticus subsp. pasteurianus causing meningitis in ducklings显示文摘 | Meixia Li Changqin Gu Wanpo Zhang Shuang Li Jiren Liu Chong Qin Jingliang Su Guofu Cheng Xueying Hu | 2012 | Veterinary Microbiology2012，，： | 1 |
| 6 | Isomorphisms and generalized derivations of some algebras显示文摘 | LI Jiankui PAN Zhidong ZHOU Jiren | 2010 | Fuzzy Sets and Sys-tems2010，28，： | 1 |
| 7 | Characterizations of Jordan derivations and Jordan homomorphisms 显示文摘 | LI Jiankui ZHOU Jiren | 2011 | Linear and Multilinear Alge-bra2011，59，3： | 1 |
| 8 | Neonatal exposure to benzo Eapyrene decreases the levels of serum testosteroneand histone H3K14 acetylation of the StAR promoter in the testes of SD rats显示文摘 | Jiren Liang HongyanZhua Cuizhen Li | 2012 | Toxicology2012，302，： | 1 |
| 9 | RAN Centric Data Collection for New Radio显示文摘Self-organizing network(SON)and minimization of driver tests(MDT)are functions designed for Long Term Evolution(LTE)system.SON is designed for network deployment by automatic configuration.MDT is designed for network performance evaluation by automatic signalling procedure.However,these functions do not support new features in new radio(NR)access technology,e.g.,multiple radio access technology(RAT)-dual connectivity(MR-DC),central unit-distribute unit(CU-DU)split architecture,beam,etc.Therefore,how to support these features is a challenge for the industry.This paper provides analysis for these problems and provides the summary of SON/MDT functions progress in3 GPP.The analysis includes sub functions such as inter/intra system mobility robustness enhancement,inter/intra system mobility load balance,measurement qualities and mechanism of MDT,energy saving mechanism and procedure,RACH procedure optimization,PCI selection optimization,coverage and capacity optimization,and quality of service(QoS)monitoring mechanism.In addition,this paper also provides an initial thought on artificial intelligence(AI)algorithms applied to SON/MDT functions in NR,so called Smart Grid. | GAO Yin LI Dapeng HAN Jiren LIU Zhuang LIU Yang | 2019 | ZTE Communications2019，17，3： | 0 |
| 10 | MODIFICATION EFFECT OF Sr ON Al-Si ALLOYS显示文摘By inserting the single crystal silicon seeds into Sr modified Al-22wt-% Si alloy melts,thefact that nucleation and growth of Si-phase are affected by Sr addition has been confirmed.Itis suggested that this effect is caused by the adsorption of Sr on{111}si,and the modificationof eutectic structure results from the variation of leading phase in the eutectic from Si to α-Al. | LIU Qiyang LI Qingchun ZHANG Jiren Harbin Institute of Technology,Harbin,China LIU Qiyang,Division of Foundry,Department of Mechanical Engineering No.2,South China University of Technology,Guangzhou,China | 1990 | Acta Metallurgica Sinica(English Letters)1990，3，7： | 0 |
| 11 | Analysis and Numerical Simulation of Hydrofracture Crack Propagation in Coal-Rock Bed显示文摘In underground coal mines,hydrofracture can cause the increase of breathability in the fractured coal bed.When the hydrofracture crack propagates to the interface between the coal bed and the roof-floor stratum,the crack may enter roof-floor lithology,thus posing a limit on the scope of breathability increase and making it difficult to support the roof and floor board for subsequent coal mining.In this work,a two-dimensional model of coal rock bed that contains hydrofracture crack was constructed.Then an investigation that combines the fracture mechanics and the system of flow and solid in rock failure process analysis(RFPA2D-Flow)were carried out to study the failure mechanism at the interface between rocks and coals,and critical water pressure that hydrofracture crack propagates.The results indicated that the main factors that affect the direction of hydrofracture crack propagation are the angle of intersection between coal-rock interface and horizontal section,horizontal crustal stress difference,tension-shear mixed crack fracture toughness in coal-rock interface and differences in elasticity modulus of coal-rock bed.The possibility of crack directly entering coal-rock interface would increase with the increase in angle of intersection or horizontal crustal stress difference.The trend that crack propagates along the coal-rock interface will become stronger with the decrease of the fracture toughness at the coal-rock interface and the increase of the elasticity modulus difference between the coal bed and the roof strata.The results of this study was to put forward a method of controlling hydrofracture crack,optimize the fracturing well location provides a certain theoretical basis. | Yiyu Lu Chenpeng Song Yunzhong Jia Binwei Xia Zhaolong Ge Jiren Tang Qian Li | 2015 | Computer Modeling in Engineering & Sciences2015，，5： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员