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24篇 您的检索式:作者名="Z.Zhu"
    题名 作者 年代 出处 被引量
1地下水渗入排污管道的定量方法显示文摘在排污管道系统中,地下水的渗入是个普遍问题。随着管材的老化,地下水可通过破损的管壁或接口处渗入管中,渗入的地下水会给环境带来危害并造成经济损失,是一个值得关注的重要问题。为了评估地下水渗入量,发达国家的学者发展并提出了三种定量方法:水量平衡法,同位素示踪法以及污染物负荷法,其中水量平衡法是传统的方法,而后两种方法是近几年提出的新方法。详细介绍了三种方法的原理和特点,通过对比发现:传统的水量平衡法精度低,误差大,但可实施性强,费用低;同位素示踪法精度高,误差小,但对区域水文条件有特定要求,且评估费用高。经综合比较分析后认为,污染物负荷法将是一种有希望得到普遍应用的方法。郭帅 张土乔 David Z.Zhu 2013中国给水排水2013,29,4:23
2High mechanical strengths and ductility of stainless steel 304L fabricated using selective laser melting显示文摘Achieving not only high mechanical strengths but also high ductility is recently established using an additive manufacturing technique called selective laser melting. In the present study, stainless steel 304 L fully dense samples were successfully printed using the 3 D systems – ProX 300 printing machine. The ductility and tensile yield strength were almost two and three times higher compared to those of ASTM cast's alloy. Honey comb like nano-cellular structure with different orientation was observed in the fine grains(~4μm) due to fast cooling rate. In addition, the formation of martensite phase in random grains is also a contributor to the strengths. Furthermore, negative residual stresses in the build and horizontal directions were detected and assisted further increase in the tensile strength. Fractography revealed the ductile feature of plastic deformation and the crack openings at unmelted particles or pores.Q.B.Nguyen Z.Zhu F.L.Ng B.W.Chua S.M.L.Nai J.Wei 2019Journal of Materials Science & Technology2019,35,2:8
3Methods for a blind analysis of isobar data collected by the STAR collaboration显示文摘In 2018,the STAR collaboration collected data from^(96)_(44)Ru+^(96)_(44)Ru and^(96)_(40)Zr+^(96)_(40)Zr at√^(S)NN=200 Ge V to search for the presence of the chiral magnetic effect in collisions of nuclei.The isobar collision species alternated frequently between 9644 Ru+^(96)_(44)Ru and^(96)_(40)Zr+^(96)_(40)Zr.In order to conduct blind analyses of studies related to the chiral magnetic effect in these isobar data,STAR developed a three-step blind analysis procedure.Analysts are initially provided a'reference sample'of data,comprised of a mix of events from the two species,the order of which respects time-dependent changes in run conditions.After tuning analysis codes and performing time-dependent quality assurance on the reference sample,analysts are provided a species-blind sample suitable for calculating efficiencies and corrections for individual≈30-min data-taking runs.For this sample,species-specific information is disguised,but individual output files contain data from a single isobar species.Only run-by-run corrections and code alteration subsequent to these corrections are allowed at this stage.Following these modifications,the'frozen'code is passed over the fully un-blind data,completing the blind analysis.As a check of the feasibility of the blind analysis procedure,analysts completed a'mock data challenge,'analyzing data from Au+Au collisions at√^(S)NN=27 Ge V,collected in 2018.The Au+Au data were prepared in the same manner intended for the isobar blind data.The details of the blind analysis procedure and results from the mock data challenge are presented.J.Adam L.Adamczyk J.R.Adams J.K.Adkins G.Agakishiev M.M.Aggarwal Z.Ahammed I.Alekseev D.M.Anderson A.Aparin E.C.Aschenauer M.U.Ashraf F.G.Atetalla A.Attri G.S.Averichev V.Bairathi K.Barish A.Behera R.Bellwied A.Bhasin J.Bielcik J.Bielcikova L.C.Bland I.G.Bordyuzhin J.D.Brandenburg A.V.Brandin J.Butterworth H.Caines M.Calderon de la Barca Sanchez D.Cebra I.Chakaberia P.Chaloupka B.K.Chan F-H.Chang Z.Chang N.Chankova-Bunzarova A.Chatterjee D.Chen J.Chen J.H.Chen X.Chen Z.Chen J.Cheng M.Cherney M.Chevalier S.Choudhury W.Christie X.Chu H.J.Crawford M.Csanad M.Daugherity T.G.Dedovich I.M.Deppner A.A.Derevschikov L.Didenko X.Dong J.L.Drachenberg J.C.Dunlop T.Edmonds N.Elsey J.Engelage G.Eppley S.Esumi O.Evdokimov A.Ewigleben O.Eyser R.Fatemi S.Fazio P.Federic J.Fedorisin C.J.Feng Y.Feng P.Filip E.Finch Y.Fisyak A.Francisco L.Fulek C.A.Gagliardi T.Galatyuk F.Geurts A.Gibson K.Gopal X.Gou D.Grosnick W.Guryn A.I.Hamad A.Hamed S.Harabasz J.W.Harris S.He W.He X.H.He Y.He S.Heppelmann S.Heppelmann N.Herrmann E.Hoffman L.Holub Y.Hong S.Horvat Y.Hu H.Z.Huang S.L.Huang T.Huang X.Huang T.J.Humanic P.Huo G.Igo D.Isenhower W.W.Jacobs C.Jena A.Jentsch Y.Ji J.Jia K.Jiang S.Jowzaee X.Ju E.G.Judd S.Kabana M.L.Kabir S.Kagamaster D.Kalinkin K.Kang D.Kapukchyan K.Kauder H.W.Ke D.Keane A.Kechechyan M.Kelsey Y.V.Khyzhniak D.P.Kikoła C.Kim B.Kimelman D.Kincses T.A.Kinghorn I.Kisel A.Kiselev M.Kocan L.Kochenda L.K.Kosarzewski L.Kramarik P.Kravtsov K.Krueger N.Kulathunga Mudiyanselage L.Kumar S.Kumar R.Kunnawalkam Elayavalli J.H.Kwasizur R.Lacey S.Lan J.M.Landgraf J.Lauret A.Lebedev R.Lednicky J.H.Lee Y.H.Leung C.Li C.Li W.Li W.Li X.Li Y.Li Y.Liang R.Licenik T.Lin Y.Lin M.A.Lisa F.Liu H.Liu P.Liu P.Liu T.Liu X.Liu Y.Liu Z.Liu T.Ljubicic W.J.Llope R.S.Longacre N.S.Lukow S.Luo X.Luo G.L.Ma L.Ma R.Ma Y.G.Ma N.Magdy R.Majka D.Mallick S.Margetis C.Markert H.S.Matis J.A.Mazer N.G.Minaev S.Mioduszewski B.Mohanty I.Mooney Z.Moravcova D.A.Morozov M.Nagy J.D.Nam Md.Nasim K.Nayak D.Neff J.M.Nelson D.B.Nemes M.Nie G.Nigmatkulov T.Niida L.V.Nogach T.Nonaka A.S.Nunes G.Odyniec A.Ogawa S.Oh V.A.Okorokov B.S.Page R.Pak A.Pandav Y.Panebratsev B.Pawlik D.Pawlowska H.Pei C.Perkins L.Pinsky R.L.Pinter J.Pluta J.Porter M.Posik N.K.Pruthi M.Przybycien J.Putschke H.Qiu A.Quintero S.K.Radhakrishnan S.Ramachandran R.L.Ray R.Reed H.G.Ritter O.V.Rogachevskiy J.L.Romero L.Ruan J.Rusnak N.R.Sahoo H.Sako S.Salur J.Sandweiss S.Sato W.B.Schmidke N.Schmitz B.R.Schweid F.Seck J.Seger M.Sergeeva R.Seto P.Seyboth N.Shah E.Shahaliev P.V.Shanmuganathan M.Shao A.I.Sheikh W.Q.Shen S.S.Shi Y.Shi Q.Y.Shou E.P.Sichtermann R.Sikora M.Simko J.Singh S.Singha N.Smirnov W.Solyst P.Sorensen H.M.Spinka B.Srivastava T.D.S.Stanislaus M.Stefaniak D.J.Stewart M.Strikhanov B.Stringfellow A.A.P.Suaide M.Sumbera B.Summa X.M.Sun X.Sun Y.Sun Y.Sun B.Surrow D.N.Svirida P.Szymanski A.H.Tang Z.Tang A.Taranenko T.Tarnowsky J.H.Thomas A.R.Timmins D.Tlusty M.Tokarev C.A.Tomkiel S.Trentalange R.E.Tribble P.Tribedy S.K.Tripathy O.D.Tsai Z.Tu T.Ullrich D.G.Underwood I.Upsal G.Van Buren J.Vanek A.N.Vasiliev I.Vassiliev F.Videbæk S.Vokal S.A.Voloshin F.Wang G.Wang J.S.Wang P.Wang Y.Wang Y.Wang Z.Wang J.C.Webb P.C.Weidenkaff L.Wen G.D.Westfall H.Wieman S.W.Wissink R.Witt Y.Wu Z.G.Xiao G.Xie W.Xie H.Xu N.Xu Q.H.Xu Y.F.Xu Y.Xu Z.Xu Z.Xu C.Yang Q.Yang S.Yang Y.Yang Z.Yang Z.Ye Z.Ye L.Yi K.Yip Y.Yu H.Zbroszczyk W.Zha C.Zhang D.Zhang S.Zhang S.Zhang X.P.Zhang Y.Zhang Y.Zhang Z.J.Zhang Z.Zhang Z.Zhang J.Zhao C.Zhong C.Zhou X.Zhu Z.Zhu M.Zurek M.Zyzak STAR Collaboration Abilene 2021Nuclear Science and Techniques2021,32,5:3
4促进饮用水供水管道生物膜脱落的超声处理参数优化显示文摘目的:从贫营养环境(如饮用水供水管道)中获取足量的DNA是用分子生物学的方法研究微生物群落的重要环节。尽管如此,DNA量不足始终是对饮用水环境样品进行宏基因组测序时最大的问题之一。为了获得尽可能多的微生物,本文采用超声处理进行微生物分离,并研究处理供水管道生物膜的最佳超声处理参数。创新点:本研究提供了一种预处理方法,可以从实际供水管道生物膜中提取更多可靠的DNA,可以更好地解决贫营养环境中DNA的收集问题。方法:1.用挑选的细菌(Pelomonas sp.)形成的生物膜来初步研究三个超声参数的最佳水平,即功率、时间和超声处理次数;2.基于这些值,对每个超声参数选择三个水平,并对实验室培养的饮用水生物膜进行正交试验,以进一步确定能有效分离生物膜的最佳超声参数水平;3.使用研究所得的最优超声处理参数对从实际供水管道采集的生物膜进行处理,以验证其效果。结论:1.最佳超声功率、时间和次数分别为13 W、1 min和15次,且两次超声处理之间需要20min的静置期;2.与没有进行超声处理的样品相比,研究所得的最优超声处理不会降低DNA质量,而且可以将提取的DNA量增加至少4.78倍。Hong-xi PENG Yu SHAO Yi-fu ZHANG Ruo-wei WANG David Z.ZHU Huan-yu CHEN Jing-qing LIU 2020Journal of Zhejiang University-Science A(Applied Physics & Engineering)2020,21,3:3
5Air entrainment in a vertical dropshaft with limited air supply显示文摘Dropshafts are vertical structures widely used in urban drainage systems and buildings for water transportation.In this paper,a physical model study was conducted to investigate the air entrainment in the dropshaft under various flow regimes with and without air ventilation.Observed from the experiments,the air entrainment mechanisms varied with the water flow regimes in the dropshaft.When there was no water plug formed in the dropshaft,air could be supplied directly from downstream.Once the water plug was formed,while without venting,the air was replenished only from downstream intermittently and then in the form of large air bubble traveling upwards to the airspace at the top;while with venting,air was mainly replenished from the dropshaft top and no large air bubble was observed.The experimental results also showed that the amount of entrained air in the dropshaft with venting was greater than that without venting.Qiang Ding Yiyi Ma David Z.Zhu 2018Theoretical & Applied Mechanics Letters2018,8,5:2
6Measurement of away-side broadening with self-subtraction of flow in Au+Au collisions at √sNN=200 GeV显示文摘High transverse momentum(pT)particle production is suppressed owing to the parton(jet)energy loss in the hot dense medium created in relativistic heavy-ion collisions.Redistribution of energy at low-to-modest pT has been difficult to measure,owing to large anisotropic backgrounds.We report a data-driven method for background evaluation and subtraction,exploiting the away-side pseudorapidity gaps,to measure the jetlike correlation shape in Au+Au collisions at √sNN=200 GeV in the STAR experiment.The correlation shapes,for trigger particles pT>3GeV/c and various associated particle pT ranges within 0.5L.Adamczyk J.R.Adams J.K.Adkins G.Agakishiev M.M.Aggarwal Z.Ahammed I.Alekseev D.M.Anderson A.Aparin E.C.Aschenauer M.U.Ashraf F.G.Atetalla A.Attri G.S.Averichev V.Bairathi K.Barish A.Behera R.Bellwied A.Bhasin J.Bielcik J.Bielcikova L.C.Bland I.G.Bordyuzhin J.D.Brandenburg A.V.Brandin J.Butterworth H.Caines M.Calderón de la Barca Sánchez D.Cebra I.Chakaberia P.Chaloupka B.K.Chan F-H.Chang Z.Chang N.Chankova-Bunzarova A.Chatterjee D.Chen J.H.Chen X.Chen Z.Chen J.Cheng M.Cherney M.Chevalier S.Choudhury W.Christie X.Chu H.J.Crawford M.Csanád M.Daugherity T.G.Dedovich I.M.Deppner A.A.Derevschikov L.Didenko X.Dong J.L.Drachenberg J.C.Dunlop T.Edmonds N.Elsey J.Engelage G.Eppley S.Esumi O.Evdokimov A.Ewigleben O.Eyser R.Fatemi S.Fazio P.Federic J.Fedorisin C.J.Feng Y.Feng P.Filip E.Finch Y.Fisyak A.Francisco L.Fulek C.A.Gagliardi T.Galatyuk F.Geurts A.Gibson K.Gopal D.Grosnick W.Guryn A.I.Hamad A.Hamed S.Harabasz J.W.Harris S.He W.He X.H.He S.Heppelmann S.Heppelmann N.Herrmann E.Hoffman L.Holub Y.Hong S.Horvat Y.Hu H.Z.Huang S.L.Huang T.Huang X.Huang T.J.Humanic P.Huo G.Igo D.Isenhower W.W.Jacobs C.Jena A.Jentsch Y.JI J.Jia K.Jiang S.Jowzaee X.Ju E.G.Judd S.Kabana M.L.Kabir S.Kagamaster D.Kalinkin K.Kang D.Kapukchyan K.Kauder H.W.Ke D.Keane A.Kechechyan M.Kelsey Y.V.Khyzhniak D.P.Kikoła C.Kim B.Kimelman D.Kincses T.A.Kinghorn I.Kisel A.Kiselev M.Kocan L.Kochenda L.K.Kosarzewski L.Kramarik P.Kravtsov K.Krueger N.Kulathunga Mudiyanselage L.Kumar S.Kumar R.Kunnawalkam Elayavalli J.H.Kwasizur R.Lacey S.Lan J.M.Landgraf J.Lauret A.Lebedev R.Lednicky J.H.Lee Y.H.Leung C.Li W.Li W.Li X.Li Y.Li Y.Liang R.Licenik T.Lin Y.Lin M.A.Lisa F.Liu H.Liu P.Liu P.Liu T.Liu X.Liu Y.Liu Z.Liu T.Ljubicic W.J.Llope R.S.Longacre N.S.Lukow S.Luo X.Luo G.L.Ma L.Ma R.Ma Y.G.Ma N.Magdy R.Majka D.Mallick S.Margetis C.Markert H.S.Matis J.A.Mazer N.G.Minaev S.Mioduszewski B.Mohanty I.Mooney Z.Moravcova D.A.Morozov M.Nagy J.D.Nam Nasim Md K.Nayak D.Neff J.M.Nelson D.B.Nemes M.Nie G.Nigmatkulov T.Niida L.V.Nogach T.Nonaka A.S.Nunes G.Odyniec A.Ogawa S.Oh V.A.Okorokov B.S.Page R.Pak A.Pandav Y.Panebratsev B.Pawlik D.Pawlowska H.Pei C.Perkins L.Pinsky R.L.Pintér J.Pluta J.Porter M.Posik N.K.Pruthi M.Przybycien J.Putschke H.Qiu A.Quintero S.K.Radhakrishnan S.Ramachandran R.L.Ray R.Reed H.G.Ritter O.V.Rogachevskiy J.L.Romero L.Ruan J.Rusnak N.R.Sahoo H.Sako S.Salur J.Sandweiss S.Sato W.B.Schmidke N.Schmitz B.R.Schweid F.Seck J.Seger M.Sergeeva R.Seto P.Seyboth N.Shah E.Shahaliev P.V.Shanmuganathan M.Shao A.I.Sheikh F.Shen W.Q.Shen S.S.Shi Q.Y.Shou E.P.Sichtermann R.Sikora M.Simko J.Singh S.Singha N.Smirnov W.Solyst P.Sorensen H.M.Spinka B.Srivastava T.D.S.Stanislaus M.Stefaniak D.J.Stewart M.Strikhanov B.Stringfellow A.A.P.Suaide M.Sumbera B.Summa X.M.Sun X.Sun Y.Sun Y.Sun B.Surrow D.N.Svirida P.Szymanski A.H.Tang Z.Tang A.Taranenko T.Tarnowsky J.H.Thomas A.R.Timmins D.Tlusty M.Tokarev C.A.Tomkiel S.Trentalange R.E.Tribble P.Tribedy S.K.Tripathy O.D.Tsai Z.Tu T.Ullrich D.G.Underwood I.Upsal G.Van Buren J.Vanek A.N.Vasiliev I.Vassiliev F.Videbæk S.Vokal S.A.Voloshin F.Wang G.Wang J.S.Wang P.Wang Y.Wang Y.Wang Z.Wang J.C.Webb P.C.Weidenkaff L.Wen G.D.Westfall H.Wieman S.W.Wissink R.Witt Y.Wu Z.G.Xiao G.Xie W.Xie H.Xu N.Xu Q.H.Xu Y.F.Xu Y.Xu Z.Xu Z.Xu C.Yang Q.Yang S.Yang Y.Yang Z.Yang Z.Ye Z.Ye L.Yi K.Yip H.Zbroszczyk W.Zha C.Zhang D.Zhang S.Zhang S.Zhang X.P.Zhang Y.Zhang Y.Zhang Z.J.Zhang Z.Zhang Z.Zhang J.Zhao C.Zhong C.Zhou X.Zhu Z.Zhu M.Zurek M.Zyzak 2020Chinese Physics C2020,44,10:2
7Hepatitis B virus X protein induces hypermethylation of p16<sup>INK4A</sup> promoter via DNA methyltransferases in the early stage of HBV‐associated hepatocarcinogenesis显示文摘Y.‐Z.Zhu R.Zhu J.Fan Q.Pan H.Li Q.Chen H.‐G.Zhu 2010Journal of Viral Hepatitis2010,,2:1
8Nitrous oxide emissions from vegetables grown in a polytunnel treated with high rates of applied nitrogen fertilizers in Southern China显示文摘J.Min W.Shi G.Xing D.Powlson Z.Zhu 2012Soil Use and Management2012,,1:1
9Sulfide elimination by intermittent nitrate dosing in sewer sediments显示文摘The formation of hydrogen sulfide in biofilms and sediments in sewer systems can cause severe pipe corrosions and health hazards, and requires expensive programs for its prevention. The aim of this study is to propose a new control strategy and the optimal condition for sulfide elimination by intermittent nitrate dosing in sewer sediments. The study was carried out based on lab-scale experiments and batch tests using real sewer sediments. The intermittent nitrate dosing mode and the optimal control condition were investigated. The results indicated that the sulfide-intermittent-elimination strategy by nitrate dosing is advantageous for controlling sulfide accumulation in sewer sediment. The oxidation–reduction potential is a sensitive indicator parameter that can reflect the control effect and the minimum N/S(nitrate/sulfide)ratio with slight excess nitrate is necessary for optimal conditions of efficient sulfide control with lower carbon source loss. The optimal control condition is feasible for the sulfide elimination in sewer systems.Yanchen Liu Chen Wu Xiaohong Zhou David Z.Zhu Hanchang Shi 2015Journal of Environmental Sciences2015,27,1:1
10Theoretical analysis and experimental study of oxygen transfer under regular and non-breaking waves显示文摘The dissolved oxygen concentration is an important index of water quality,and the atmosphere is one of the important sources of the dissolved oxygen.In this paper,the mass conservation law and the dimensional analysis method are employed to study the oxygen transfer under regular and non-breaking waves,and a unified oxygen transfer coefficient equation is obtained with consideration of the effect of kinetic energy and wave period.An oxygen transfer experiment for the intermediate depth water wave is performed to measure the wave parameters and the dissolved oxygen concentration.The experimental data and the least squares method are used to determine the constant in the oxygen transfer coefficient equation.The experimental data and the previous reported data are also used to further validate the oxygen transfer coefficient,and the agreement is satisfactory.The unified equation shows that the oxygen transfer coefficient increases with the increase of a parameter coupled with the wave height and the wave length,but it decreases with the increase of the wave period,which has a much greater influence on the oxygen transfer coefficient than the coupled parameter.尹则高 DAVID Z.Zhu 梁丙臣 王乐 2013Journal of Hydrodynamics2013,25,5:1
11High Photovoltaic Performance of a Low‐Bandgap Polymer显示文摘D.Mühlbacher M.Scharber M.Morana Z.Zhu D.Waller R.Gaudiana C.Brabec 2006Adv. Mater2006,,21:1
12Hepatitis B virus X protein induces hypermethylation of p16INK4A promoter via DNA methyltransferases in the early stage of HBV‐associated hepatocarcinogenesis显示文摘Y.‐Z.Zhu R.Zhu J.Fan Q.Pan H.Li Q.Chen H.‐G.Zhu 2010Journal of Viral Hepatitis2010,,2:1
13Two-dimensional pipe leakage through a line crack in water distribution systems显示文摘In water distribution systems,water leakage from cracked water pipes is a major concern for water providers.Generally,the relationship between the leakage rate and the water pressure can be modeled by a power function developed from the orifice equation.This paper presents an approximate solution for the computation of the steady-state leakage rate through a longitudinal line crack of a water distribution pipe considering the surrounding soil properties.The derived solution agrees well with results of numerical simulations.Compared with the traditional models,the new solution allows assessment of all the parameters that related with leakage including the pressure head inside the pipe,hydraulic conductivity,crack size and its position,and pipe size and its depth.Shuai GUO Tu-qiao ZHANG Wei-yun SHAO David Z.ZHU Yuan-yu DUAN 2013Journal of Zhejiang University-Science A(Applied Physics & Engineering)2013,14,5:1
14A new hydrothermal synthesis of spherical Li4Ti5O12 anode material for lithium-ion secondary batteries显示文摘H.Yan Z.Zhu D.Zhang 0,,01:1
15Status and distribution of mangrove forests of the world using earth observation satellite data显示文摘C.Giri E.Ochieng L. L.Tieszen Z.Zhu A.Singh T.Loveland J.Masek N.Duke 2010Global Ecology and Biogeography2010,,1:1
16Observations on sand jets in viscoplastic fluids显示文摘Sand jet in non-Newtonian viscoplastic fluid is associated with a number of industrial and engineering applications,including sand capping for the reclamation of oilsands tailings ponds and sediment deposition into soft mud.In this study,several experiments were carried out by depositing circular sand jets vertically into viscoplastic fluids,known as Laponite gel.The deformation regimes of sand jets in the gel were investigated.The yield-gravity parameter of the deformed sand drop in the gel was computed.David Z.Zhu N.Rajaratnam 2012Theoretical & Applied Mechanics Letters2012,2,5:0
17Simulation of open channel flows by an explicit incompressible mesh-free method显示文摘In this study,to simulate open channel flows,an explicit incompressible mesh-free method is employed in which the pressure field is obtained by explicitly solving the pressure Poisson equation.To capture the velocity information in open channel flows,the source term in the pressure Poisson equation is modified while the spatial discretization of gradient and Laplacian models is based on the moving particle semi-implicit(MPS)method.The inflow boundary condition is treated by injecting fluid particles into the domain according to the inlet discharge,and the outflow condition is handled by prescribing the pressure distribution and removing the fluid particles beyond the domain.The explicit incompressible mesh-free method is then used to simulate open channel flows,including weir flow,hydraulic jump,and flow over an obstacle.In the simulations,velocity distribution and flow pattern are examined.The simulated results are compared to available experimental measurements and other numerical results.There is a good agreement between the simulated results and the experimental measurements.It shows that the explicit incompressible mesh-free method can reproduce the flow characteristics in the open channel flows.Zhi-jian Huang Ti-bing Xu David Z.Zhu Song-da Zhang 2023Journal of Hydrodynamics2023,35,2:0
18薄矿脉矿山膏体充填的现场应力与应变监测显示文摘许多研究人员曾将充填作业作为地层支护的一个组成部分加以研究,由于充填体与岩体之间的相互作用非常复杂且难以模拟,加上地层条件的复杂特性、回采空间几何形状和回采顺序等因素的影响,开采过程诱发的应力情况难以预测.该问题的复杂程度很难用计算机模型或物理模型来充分描述.为改善这些不足,详细而广泛的现场数据可使人们对充填的影响有更好的了解.在现场对真实问题进行全面研究,也可以消除基于理论的研究而必须依靠的一些限制条件,现场的详细图纸也可以为人们验证并最终完善计算或分析模型提供宝贵的信息.基于这一点,作者进行了广泛的调研查研究,以了解矿山充填体对开采诱发应力的作用.该项调研历时5年,包括两个矿山现场.第一个现场是一个薄矿脉型的矿山,第二个现场则是一个大型的矿床.现场调研活动包括各种现场设备应用、现场测试、实验室测试和对采场详细的地质力学研究.在这次研究过程中,第一个矿山发生了一次岩爆,作者也对其进行了检测,还从岩层支护的角度阐述了现场设备使用的潜在后果,并基于上述案例讨论了胶结充填作业的作用.F.Hassani J.Ouellet Z.Zhu Roy A. 刘维震 2004矿业研究与开发2004,24,z1:0
19大型矿山的膏体充填特性--现场应力测量与观测显示文摘许多研究人员研究过充填作为岩层支护要素的作用.为评价充填对采场稳定性的作用和为采场设计确定适当准则,了解岩石和充填体的相互作用是必不可少的.问题的复杂性在于计算机模拟和物理模拟难以恰当地描述,为使问题适应这些方法,必须作一些假定来简化问题,因此模型是否具有真实的代表性总有一些怀疑.为克服这些缺陷,详细而广泛的现场数据能更好地了解充填的效应.为研究矿山充填对采矿诱发应力应变的影响,作者进行了广泛研究,这一研究包括两个矿山现场,历时5年.第一个矿山是薄矿脉,第二个为厚大矿体,包括各种现场测试仪器、现场试验和现场详细地质力学研究.文章以第二个矿山(BouchardHebert矿)的较大采场的研究为基础,介绍了现场测试仪器的潜力和测试方法,并从岩体和充填体相互作用的观点讨论了膏体充填的作用.J.Ouellet F.Hassani Z.Zhu 姚必鸿 2004矿业研究与开发2004,24,z1:0
20A TELEMONITORING NETWORK:DESIGN AND CLINICAL TEST显示文摘J.Bai Y.Zhang B.Dai J.Lin Z.Zhu Z.Cui J.Zhang P.Zhang D.Shen S.Yao S.Cd D.Ye 1995Chinese Journal of Biomedical Engineering(English Edition)1995,4,2:0
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