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| 1 | Re-Os and U-Pb Geochronology of the Erlihe Pb-Zn Deposit,Qinling Orogenic Belt,Central China,and Constraints on Its Deposit Genesis显示文摘The Erlihe Pb-Zn deposit is an important mine of the Pb-Zn metallogenic zone in the South Qinling Orogen.It has been considered a sedimentary exhalative deposit in previous investigations because the ore body occurs concordantly at the transitional location of an upright fold.Re and Os isotopic analyses for paragenetic pyrites with sphalerite and galena from the ore body have been used to determine the timing of mineralization and to trace the source of metallogenic materials.The Re-Os isotopic data of four pyrite samples construct an isochron,yielding a weighted average age of 226±17 Ma(mean square weighted deviation=1.7),which is considered the main mineralization age.A dioritic porphyrite vein sample,showing weaker mineralization,was also dated using the SHRIMP zircon UPb isotopic method to constrain the youngest metallogenic age of the ore deposit,because it distributes along a group of tensional joints cutting not only the upright fold in the deposit field,but also the main ore bodies.The dioritic porphyrite sample yields a weighted mean ^(206)Pb/^(238)U age of 221±3 Ma,which is slightly younger than the Re-Os isotopic isochron age of the pyrites,considered as the upper age limit of the mineralization,namely the ending age of the mineralization.The Os isotopic compositions of sulfide minerals distribute within a range between Os isotopic compositions of the crust and the mantle, indicating that the ore deposit can be derived from magma-related fluid,and the metallogenic materials are most likely derived from the mixing source of the crust and the mantle.The Erlihe Pb-Zn deposit and associated dioritic porphyrite vein,important records of Qinling tectonic-magmatism-mineralization activities,were formed during the Triassic collisional orogeny processes. | ZHANG Fan LIU Shuwen LI Qiugen SUN Yali WANG Zongqi YAN Quanren YAN Zhen | 2011 | Acta Geologica Sinica(English Edition)2011，85，3： | 30 |
| 2 | Multi-objective parameter optimization for a single-shaft series-parallel plug-in hybrid electric bus using genetic algorithm显示文摘最近,插件混合电的公共汽车(PHEB ) 的单个柄的系列平行 powertrain 为驾驶周期由于它的可改变的操作模式,优秀燃料经济和强壮的适应性成为了最流行的 powertrains 之一。为在开发阶段与单个柄的系列平行 powertrain 设置 PHEB,当选择并且匹配主要部件参数时,不过,它仍然比另外的配置面对更大的挑战。由这个问题激发了,全面多目的优化策略与典型 powertrain 为 PHEB 基于基因算法(GA ) 被开发。就公共汽车线路的重覆性和整齐而言,首先,离线的数据处理和数学统计的方法被采用,到获得一个代表性的开车周期,它能很好反映真实世界的公共汽车线路的一般特征。然后,节俭的优化目的被定义,它是由生产关键部件和精力消费的费用组成,并且与动态优化目的结合了,多客观的优化功能被提出。同时, GA 算法被用来优化参数,为新奇系列平行 powertrain 的最佳的部件联合。最后,有原型的比较被执行沿着驾驶周期验证优化 powertrain 的表演。模拟结果显示建议全面多目的优化策略获得的 powertrain 部件的参数可能得到更好的燃料经济,同时保证 PHEB 的动态性能。与原版相对照,费用在 18% 衰退了。因此,策略将为 PHEB 制造商在参数选择上提供理论指导。 | CHEN Zheng ZHOU LiYan SUN Yong MA ZiLin HAN ZongQi | 2016 | Science China(Technological Sciences)2016，59，8： | 4 |
| 3 | Qiguiyishen decoction reduced the accumulation of extracellular matrix in the kidneys of rats with adriamycin-induced nephropathy显示文摘OBJECTIVE: To investigate the effect of Qiguiyishen decoction(QGYS) on the severity of nephropathy.METHODS: Twenty-four rats were randomly divided into four groups(Ⅰ, Ⅱ, Ⅲ, Ⅳ) according to the random number table. Group Ⅰ as control group did not establish nephropathy model. Groups Ⅱ,Ⅲ, and Ⅳ were intravenously administered Adriamycin(7.5 mg/kg) through the tail vein to establish nephropathy model. QGYS was prepared with the extracts of Huangqi(Radix Astragali Mongolici),Danggui(Radix Angelicae Sinensis),Niuxi(RadixAchyran-this Bidentatae), and Chuanxiong(Rhizoma Chuanxiong).Group Ⅳ was administered QGYS (2mL·kg-1·d-1), group Ⅲ was administered benazepril(10 mL·kg-1·d-1), and group Ⅰ, Ⅱ was administered water(2mL·kg-1·d-1)once daily for eight weeks.RESULTS: QGYS reduced the excretion of urinary protein and N-acetyl-β-D-glucosaminidase and alleviated the accumulation of extracellular matrix(ECM) in renal tissue. Additionally, QGYS effectively regulated the levels of transforming growth factor,tissue inhibitor of matrix metalloproteinase, and matrixmetalloprote in asesin the kidney of the rats.CONCLUSION:QGYS may reduce the accumulation of ECM in the kidneys of rats with Adriamycin-induced nephropathy. | Minggang Wei Wei Sun Weiming He Li Ni Xiaofeng Cai Zongqi Cheng Kun Gao Fengling Li Lin Chen Xinping Zhang | 2014 | Journal of Traditional Chinese Medicine2014，34，3： | 4 |
| 4 | Approaches to High-grade Sintered Magnesia from Natural Magnesite显示文摘It is hard to manufacture high purity,dense sintered-magnesia from natural magnesite in the prevailing process of calcining and sintering,for two reasons:a)impurity,and b)low sintering activity of coarse-grained magnesite.In this paper,95%MgO magnesite was used as the starting material and finally magnesia of high density(3.47 g/cm^3)and high purity(98%MgO)was obtained after the flotation purification and a three-step sintering process.An industrial scale of the beneficiation system of natural magnesite was introduced for magnesite purification.In lab experimental,the three-step sintering process was implemented by calcining,hydrating,re-calcining and sintering,which has proven the possibility of densified magnesia from natural magnesite. | GUO Zongqi BI Deli MA Ying SUN Zhenlin | 2020 | China's Refractories2020，29，3： | 3 |
| 5 | Effect of Annealing on the Microwave-absorption Properties of Ni/Al_2O_3 Nanocomposites显示文摘Ni/Al2O3 nanocomposites were prepared by the mechanochemical synthesis method.The annealing process enlarges the grain size of both the metal Ni and insulating Al2O3 in the as-milled nanocomposite and leads to an increase of the saturation magnetization and a decrease of the surface anisotropy.An optimal reflection loss(RL) of 23 dB is obtained in the as-milled nanocomposite at 17.8 GHz for an absorber thickness of 6.6 mm.The annealed sample exhibits a RL exceeding 20 dB in the whole K u-band for an absorber thickness of 6.6-9.7 mm with an optimal RL of 54.7 dB at 13.2 GHz for a layer thickness of 9.3 mm.The excellent microwave-absorption properties are a consequence of a proper match of the dielectric and magnetic losses. | Songning XU Meixing ZHAO Zongqi CAI Naikun SUN Feng LIU Baosheng DU Xueyuan ZHANG Zhoujun LING | 2013 | Acta Metallurgica Sinica(English Letters)2013，26，4： | 1 |
| 6 | Analysis of flexural mode focusing by a semianalytical finite element method显示文摘 | Hayashi Takahiro Kawashima Koichiro Sun Zongqi | 2003 | J Acoust Soc Am2003，113，3： | 1 |
| 7 | General behaviour of mode Ⅱ crack propagation in rock显示文摘 | Sun Zongqi and Li Zhenzi | 1994 | J Cent South Inst Min Metall(in Chinese)1994，25，4： | 1 |
| 8 | Non - axisym- metric wave focusing in pipe inspection 显示文摘 | SUN Zongqi ROSE J L SONG Wonjoon et at | 2003 | Review of Quan- titative Nondestructive Evaluation2003，，22： | 1 |
| 9 | Flexural torisonal guided wave mechanics and focusing in pipe 显示文摘 | Zongqi Sun Li Zhang Rose J L | 2005 | Journal of Pres- sure Vessel Technology2005，127，4： | 1 |
| 10 | ANALYSIS OF BRITTLE FRACTURE DUE TO COMPRESSIVE LOADING USING CENTER-CRACKED BRAZILIAN DISK显示文摘Determinationoffracturetoughnesofbritlematerialsisofgreatimportanceinminingandgeologicalenginering.Avarietyofspecimengeomet... | Chen Feng Zhou Hongbin ** Sun Zongqi (Opening Laboratoary of Mechanics, Central South University of Technology, Changsha 410083, China) | 1999 | Journal of Central South University1999，11，1： | 1 |
| 11 | Analysis of flexural mode focusing by a semianalytical finite element method显示文摘 | Kavashima Kochiro Sun Zongqi | 2003 | J Acoust SocAm2003，113，3： | 1 |
| 12 | Shear fracture of brittle rock 显示文摘 | Rao Qiuhua Sun Zongqi Stephansson O | 2003 | International Journal of Rock Mechanics and Mining Sciences2003，40，3： | 1 |
| 13 | DYNAMIC MIXED MODE FRACTURE INITIATION IN ROCK^+显示文摘In this paper, a distortion dynamic strain energy density factor criterion for dynamic mixed-mode fracture initiation in rock is suggested.The results of the investigation on 14 three-point bending (TPB) and four-point bending(FPB) rock specimens tested u | Li Zhenzi Liu Youwen DU Hui Xu Jicheng Zhang Jinyi Sun Zongqi (Department of Architectural Engineering, Central South University of Technology, Changsha, 410083, China) | 1995 | Journal of Central South University1995，7，1： | 0 |
| 14 | A SIMPLE METHOD OF DETERMINING STRESS INTENSITY FACTOR K_I FROM ISOCHROMATIC FRINGE LOOPS显示文摘Owingtotheimportanceofstressintensityfa-torinlinear-elasticfracturemechanics,consider-ableresearchisconductedinboththeoryande... | Chen Feng Sun Zongqi (Opening Laboratory of Mechanics, Central South University of Technology, Changsha 410083, China) | 1998 | Journal of Central South University1998，10，2： | 0 |
| 15 | ROCK FRACTURE PROCESS ZONE AND ITS INFLUENCE ON MODEⅡFRACTURE BEHAVIOR显示文摘On the basis of that rock material usually has a larger fracture process zone,a new fracture criterion which is different from that of linear elastic fracture theory was presented.On this basis,the fracture behavior and influencing factors under modeⅡor compressive shear loading were investigated. | Wang Guiyao Sun Zongqi Xu Jicheng | 1996 | Transactions of Nonferrous Metals Society of China1996，6，1： | 0 |
| 16 | PREDICTION OF BLOCK CAVING RATE USING SUBCRITICAL CRACK GROWING VELOCITY显示文摘PREDICTIONOFBLOCKCAVINGRATEUSINGSUBCRITICALCRACKGROWINGVELOCITYChaoPing;PanChangliang;SunZongqi;LuoLi(DepartmentofResourcesEx... | Chao Ping Pan Changliang Sun Zongqi Luo Li(Department of Resources Exploitation Engineering ,Central South University of Technology,Changsha 410083) | 1995 | 中国有色金属学会会刊:英文版1995，5，4： | 0 |
| 17 | Dislocation Model and Morphology Simulation of bcc<->fcc Martensitic Transformation显示文摘By using molecular dynamics computer simulation at atomic level, the effects of single dislocation and dipole dislocations on nucleation and growth of martensitic transformation have been studied. It was found that only the location of tension or compression stress fields of the dislocations are favorable for martensite nucleation in NiAl alloy and the dislocations can move to accommodate partly the transformation strain during the nucleation and growth of martensite. Combined with the molecular dynamics simulation, a two dimensional simulation for martensite morphology based on a dislocation model has been performed. Many factors related to martensitic transformation were considered, such as supercooling, interface energy, shear strain, normal strain and hydrostatic pressure. Different morphologies of martensites, similar to lath, lenticular, thin plate, couple-plate and lenticular couple-plate martensites observed in Fe-C and Fe-Ni-C alloys, were obtained. | Xiumu ZHANG, Bin LI, Xianwei SHA, Zongqi SUN and Rong LI (Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015, China) | 2000 | Journal of Materials Science & Technology2000，16，4： | 0 |
| 18 | ELASTO-PLASTIC STIFFNESS MATRIX OF ROCK MASS ELEMENT WITH SOFT CLAY STRATA AND ITS APPLICATION显示文摘The fault element is used to handle soft clay strata in a rock mass.The formulas or clasto-plastic stiffnessmatrix for the fault element are derived using the constitutive relationship between plastic increment stress andstrain.A numerical example of a circular tunnel with soft clay strata in the rock medium are examined. | Li,Zhenzi Sun,Zongqi Central-South University of Technology,Changsha,Hunan,410083,China | 1993 | 中国有色金属学会会刊:英文版1993，3，2： | 0 |
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