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| 1 | REE and C-O Isotopic Geochemistry of Calcites from the World-class Huize Pb-Zn Deposits,Yunnan,China:Implications for the Ore Genesis显示文摘在西南的中国,云南省的世界级的 Huize Pb-Zn 存款在 Sichuan-Yunnan-Guizhou Pb-Zn polymetallic metallogenic 省的中心定位了,在 Pb+Zn 等级有超过500万吨的 Pb+Zn 储备比25%高并且包含丰富的联系金属例如 Ag , Ge , Cd ,并且 Ga 。存款在更低的含碳的碳酸盐阶层和在 orefield 的北、西南的部分散布了的二叠的 Emeishan 暗岩被招待。方解石是在沉积物的主要矿石的唯一的脉石矿物质并且能被分类进三种类型,也就是笨重,根据他们的出现的补丁和静脉方解石。在方解石和矿石矿物质之间并且在方解石的三种类型之中有没设置的接触,显示他们是有不同阶段的一样的形成矿石的年龄,它的形成的顺序从对到静脉方解石的补丁笨重。 | HUANG Zhilong LI Xiaobiao ZHOU Meifu LI Wenbo JIN Zhongguo | 2010 | Acta Geologica Sinica(English Edition)2010，84，3： | 42 |
| 2 | Orthogonal arrays obtained by generalized difference matrices with g levels显示文摘Nowadays orthogonal arrays play important roles in statistics, computer science, coding theory and cryptography. The usual difference matrices are essential for the construction for many mixed orthogonal arrays. But there are also orthogonal arrays which cannot be obtained by the usual difference matrices, such as mixed orthogonal arrays of run size 60. In order to construct these mixed orthogonal arrays, a class of special so-called generalized difference matrices were discovered by Zhang (1989,1990,1993,2006) from the orthogonal decompositions of projection matrices. In this article, an interesting equivalent relationship between orthogonal arrays and the generalized difference matrices is presented and proved. As an application, a lot of new orthogonal arrays of run size 60 have been constructed. | ZHANG YingShan LI WeiGuo MAO ShiSong ZHENG ZhongGuo | 2011 | Science China Mathematics2011，54，1： | 11 |
| 3 | Aerodynamic performance enhancement of a flying wing using nanosecond pulsed DBD plasma actuator显示文摘Experimental investigation of aerodynamic control on a 35 swept flying wing by means of nanosecond dielectric barrier discharge(NS-DBD) plasma was carried out at subsonic flow speed of 20–40 m/s, corresponding to Reynolds number of 3.1 · 105–6.2 · 105. In control condition, the plasma actuator was installed symmetrically on the leading edge of the wing. Lift coefficient, drag coefficient, lift-to-drag ratio and pitching moment coefficient were tested with and without control for a range of angles of attack. The tested results indicate that an increase of 14.5% in maximum lift coefficient, a decrease of 34.2% in drag coefficient, an increase of 22.4% in maximum lift-to-drag ratio and an increase of 2 at stall angle of attack could be achieved compared with the baseline case. The effects of pulsed frequency, amplitude and chord Reynolds number were also investigated.And the results revealed that control efficiency demonstrated strong dependence on pulsed frequency. Moreover, the results of pitching moment coefficient indicated that the breakdown of leading edge vortices could be delayed by plasma actuator at low pulsed frequencies. | Han Menghu Li Jun Niu Zhongguo Liang Hua Zhao Guangyin Hua Weizhuo | 2015 | Chinese Journal of Aeronautics2015，28，2： | 9 |
| 4 | Effect of total aluminum concentration on the formation and transformation of nanosized Al_(13) and Al_(30) in hydrolytic polymeric aluminum aqueous solutions显示文摘Influence of total aluminum concentration (CAlT) on the generation and transformation of nanosized Al13 and Al30 in hydrolytic polyaluminum aqueous solutions was in-vestigated using high field 27Al NMR and time-developed Al-Ferron complex colorimetry. When prepared at the opti-mal basicity (B) of Al13 generation and 80℃, the Al13 species in polyaluminum solution tends to further polymerize and convert to Al30 and higher polymers when CAlT >0.2 mol·L?1, but Al13 does not convert to Al30 quantificationally, as the formation of Alu from Al13 and Al30 is accelerated in the same way. The conversion rate of Al13 is accelerated by the in-crease in CAlT. When CAlT >0.75 mol·L?1, Al13 content de-creases rapidly, and Al30 content increases continuously and becomes the dominant nanometer polynuclear aluminum species. Alm is one of prerequisites of Al13 conversion to Al30. When CAlT increases and B reduces, the polymerization rate between Al13 and Alm increases, and at the same time, the dissociation reaction rate of Al13 and Al30 by H+ also increases. The latter becomes the dominant reaction in polyaluminum solution with low B value, so Al30 decreases with the increas-ing CAlT. The hydrolytic polyaluminum solution with Al13 content beyond 80% can only be prepared under the condi-tion of CAlT<0.5 mol·L?1 and optimal B value. | CHEN Zhaoyang LIU Changjun LUAN Zhaokun ZHANG Zhongguo LI Yanzhong JIA Zhiping | 2005 | Chinese Science Bulletin2005，50，18： | 8 |
| 5 | Brain-derived neurotrophic factor induces neuron-like cellular differentiation of mesenchymal stem cells derived from human umbilical cord blood cells in vitro显示文摘Human umbilical cord blood was collected from full-term deliveries scheduled for cesarean section.Mononuclear cells were isolated,amplified and induced as mesenchymal stem cells.Isolated mesenchymal stem cells tested positive for the marker CD29,CD44 and CD105 and negative for typical hematopoietic and endothelial markers.Following treatment with neural induction medium containing brain-derived neurotrophic factor for 7 days,the adherent cells exhibited neuron-like cellular morphology.Immunohistochemical staining and reverse transcription-PCR revealed that the induced mesenchymal stem cells expressed the markers for neuron-specific enolase and neurofilament.The results demonstrated that human umbilical cord blood-derived mesenchymal stem cells can differentiate into neuron-like cells induced by brain-derived neurotrophic factor in vitro. | Lei Chen Zhongguo Zhang Bing Chen Xiaozhi Liu Zhenlin Liu Hongliang Liu Gang Li Zhiguo Su Junfei Wang Guozhen Hui | 2011 | Neural Regeneration Research2011，6，13： | 8 |
| 6 | A SIMPLE METHOD FOR CONSTRUCTING ORTHOGONAL ARRAYS BY THE KRONECKER SUM显示文摘在这篇文章,我们建议一条新一般途径到构造不均匀的直角的数组,也就是 Kronecker 和。自从很多 newmixed 水平,直角的数组能被这个方法获得,有趣。 | Yingshan ZHANG Weiguo LI Shisong MAO Zhongguo ZHENG | 2006 | Journal of Systems Science & Complexity2006，19，2： | 8 |
| 7 | Big data-enabled multiscale serviceability analysis for aging bridges显示文摘 | Yu Liang Dalei Wu Guirong Liu Yaohang Li Cuilan Gao Zhongguo John Ma Weidong Wu | 2016 | Digital Communications and Networks2016，2，3： | 5 |
| 8 | Retrieval of leaf biochemical properties by inversed PROSPECT model and hyperspectral indices:an application to Populus euphratica polymorphic leaves显示文摘Leaf biochemical properties have been widely assessed using hyperspectral reflectance information by inversion of PROSPECT model or by using hyperspectral indices,but few studies have focused on arid ecosystems.As a dominant species of riparian ecosystems in arid lands,Populus euphratica Oliv.is an unusual tree species with polymorphic leaves along the vertical profile of canopy corresponding to different growth stages.In this study,we evaluated both the inversed PROSPECT model and hyperspectral indices for estimating biochemical properties of P.euphratica leaves.Both the shapes and biochemical properties of P.euphratica leaves were found to change with the heights from ground surface.The results indicated that the model inversion calibrated for each leaf shape performed much better than the model calibrated for all leaf shapes,and also better than hyperspectral indices.Similar results were obtained for estimations of equivalent water thickness (EWT) and leaf mass per area (LMA).Hyperspectral indices identified in this study for estimating these leaf properties had root mean square error (RMSE) and R 2 values between those obtained with the two calibration strategies using the inversed PROSPECT model.Hence,the inversed PROSPECT model can be applied to estimate leaf biochemical properties in arid ecosystems,but the calibration to the model requires special attention. | ZhongGuo MA Xi CHEN Quan WANG PingHeng LI Guli Jiapaer | 2012 | Journal of Arid Land2012，4，1： | 4 |
| 9 | Hydrolysis of polyaluminum chloride prior to coagulation:Effects on coagulation behavior and implications for improving coagulation performance显示文摘The effects of polyaluminum chloride(PACl) hydrolysis prior to coagulation on both the coagulation zone and coagulation performance of a kaolin suspension were investigated by a novel jar test named the 'reversed coagulation test'.The tests showed that PACl hydrolysis prior to coagulation decreased the performance of charge neutralization coagulation in the case of short-time slow mixing(10 min;G = 15 sec-1) and increased the optimal dosage for charge neutralization and sweep coagulation.Moreover,the hydrolysis time had insignificant effects on the size and zeta potential of PACl precipitates and the residual turbidity of the raw water.However,PACl hydrolysis prior to coagulation and the size of PACl precipitates had a negligible effect on the performance of sweep coagulation.The results imply that,in practice,preparing a PACl solution with deionized water,rather than tap water or the outlet water from a wastewater treatment unit,can significantly save PACl consumption and improve the performance of charge neutralization coagulation,while preparing the PACl solution with tap or outlet water would not affect the performance of sweep coagulation.In addition,the optimal rapid mixing intensity appears to be determined by a balance between the degree of coagulant hydrolysis before contacting the primary particles and the average size of flocs in the rapid mixing period.These results provide new insights into the role of PACl hydrolysis and will be useful for improving coagulation efficiency. | Zhongguo Zhang Jun Wang Dan Liu Jiuyi Li Xiaolin Wang Boyu Song Bing Yue Kehui Zhao Yun Song | 2017 | Journal of Environmental Sciences2017，29，7： | 4 |
| 10 | Simplified full-depth precast concrete deck panel systems for accelerated bridge construction显示文摘A simplified full-depth precast concrete deck panel system for accelerating bridge construction(ABC) is introduced and a finite element analysis(FEA) is conducted to investigate the static and dynamic responses of this conceptual deck system. The FEA results are compared to those of the traditional full-depth precast concrete deck panel system. The comparison results show that the mechanical behavior of the new deck system is different from that of the traditional deck system. The concrete decks in the new system act as two-way slabs, instead of the one-way slab in the traditional system. Meanwhile, the connections in both the longitudinal and transverse directions may need to accommodate the negative moments.Compared to those in the traditional system, the longitudinal nominal stress at middle span increases a lot in the new deck system and the effective flange width varies significantly. In addition, the dynamic results show that the impact factor is influenced by the spacing of connections.Finally, some design concerns of the new deck system are proposed. | Zhongguo John Ma Yulin Zhan Lin Xiao Lungui Li Weiwei Lu | 2016 | Journal of Modern Transportation2016，24，4： | 4 |
| 11 | Drinking water treatment using a submerged internal-circulation membrane coagulation reactor coupled with permanganate oxidation显示文摘A submerged internal circulating membrane coagulation reactor(MCR) was used to treat surface water to produce drinking water. Polyaluminum chloride(PACl) was used as coagulant,and a hydrophilic polyvinylidene fluoride(PVDF) submerged hollow fiber microfiltration membrane was employed. The influences of trans-membrane pressure(TMP), zeta potential(ZP) of the suspended particles in raw water, and KMnO_4 dosing on water flux and the removal of turbidity and organic matter were systematically investigated. Continuous bench-scale experiments showed that the permeate quality of the MCR satisfied the requirement for a centralized water supply, according to the Standards for Drinking Water Quality of China(GB 5749-2006), as evaluated by turbidity(<1 NTU) and total organic carbon(TOC)(<5 mg/L)measurements. Besides water flux, the removal of turbidity, TOC and dissolved organic carbon(DOC) in the raw water also increased with increasing TMP in the range of 0.01–0.05 MPa. High ZP induced by PACl, such as 5–9 mV, led to an increase in the number of fine and total particles in the MCR, and consequently caused serious membrane fouling and high permeate turbidity.However, the removal of TOC and DOC increased with increasing ZP. A slightly positive ZP, such as 1–2 mV, corresponding to charge neutralization coagulation, was favorable for membrane fouling control. Moreover, dosing with KMnO_4 could further improve the removal of turbidity and DOC, thereby mitigating membrane fouling. The results are helpful for the application of the MCR in producing drinking water and also beneficial to the research and application of other coagulation and membrane separation hybrid processes. | Zhongguo Zhang Dan Liu Yu Qian Yue Wu Peiran He Shuang Liang Xiaozheng Fu Jiding Li Changqing Ye | 2017 | Journal of Environmental Sciences2017，29，6： | 3 |
| 12 | Investigation of calcium phosphate (CaP) tribofilms from commercial automatic transmission fluids (ATFs) and their correlation with antishudder performance显示文摘The friction properties of wet clutches are highly dependent on the surface tribofilms formed by automatic transmission fluids (ATFs). Here, four commercial ATFs were evaluated with a disc-on-disc tribometer to study tribofilm formation on steel surfaces and the effects of tribofilms on the friction properties. The chemical composition, stoichiometry, structure, and thickness of the tribofilms were investigated by scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDX), secondary ion mass spectrometry (SIMS), and X-ray photoelectron spectroscopy (XPS). Calcium phosphate (CaP) tribofilms form on the friction surface with all ATFs, which contributes to their antishudder characteristics. The thickness and surface coverage of CaP tribofilms are positively correlated with their antishudder properties. | Zechao DI Jingjing XU Yang LIU Yu JIANG Dongsheng HUANG Haitao CUI Zhongguo LIU Zhiyu ZHAO Shaohui LI | 2020 | Friction2020，8，5： | 3 |
| 13 | Industrial waste utilization method: producing poly-ferric sulfate (PFS) from sodium-jarosite residue显示文摘Sodium-jarosite 是源于 hydrometallurgy 和无机的化学生产的工业废物的一种类型。jarosite 残余的铁内容可以被利用理论上生产铁的材料。在高质量的 poly 铁的硫酸盐(PFS ) 的生产的困难是怎么移开在 jarosite 残余包含的杂质。这份报纸为处理能被用来综合的 sodium-jarosite 建议一个新奇方法 PFS,为对待浪费水的很重要的试剂。方法由沥滤的一个二拍子的圆舞组成试验性的过程。第一走,预先沥滤过程,是由严格地控制沥滤的条件移开杂质金属。酸的水的酸集中在 sodium-jarosite 根据杂质金属的内容被调整,沥滤的温度在 25 浯'贉?€ ?晬浡瑥潨慸潺敬?被控制????€ 楤汣景湥捡??慣'R浡穡灥湩???????????湡敡潲楢?湡硯捩漯楸??????????呓???????畘桺畯??湡硯捩漯楸???? | Zhongguo LI Wenyi YUAN | 2015 | Frontiers of Environmental Science & Engineering2015，9，4： | 2 |
| 14 | Worn area modeling for automating the repair of turbine blades显示文摘 | Jianming Zheng Zhongguo Li Xi Chen | 2006 | The International Journal of Advanced Manufacturing Technology2006，，9： | 1 |
| 15 | Punctuation as Implicit Annotations for Chinese Word Segmentation 显示文摘 | Zhongguo Li Maosong Sun | 2009 | Computational Linguistics2009，35，50： | 1 |
| 16 | Punctuation as Implicit Annotations for Chinese Word Segmentation 显示文摘 | Zhongguo Li Maosong Sun | 2009 | Computational Linguistics2009，，4： | 1 |
| 17 | Encryption/decryption and microtarget capturing by pH-driven Janus microstructures fabricated by the same femtosecond laser printing parameters显示文摘Several natural organism can change shape under external stimuli. These natural phenomena have inspired a vast amount of research on exploration and implementation of reconfigurable shape transformation. The Janus structure is a promising approach to achieve shape transformation based on its heterogeneous chemical or physical properties on opposite sides.However, the heterogeneity is generally realized by multi-step processing, different materials,and/or different processing parameters. Here, we present a simple and flexible method of producing p H-sensitive Janus microactuators from a single material, using the same laser printing parameters. These microactuators exhibit reversible structural deformations with large bending angles of ~31°and fast response(~0.2 s) by changing the p H value of the aqueous environment. Benefited from the high flexibility of the laser printing technique and the spatial arrangements, pillar heights, and bending directions of microactuators are readily controlled,enabling a variety of switchable ordered patterns and complex petal-like structures on flat surfaces and inside microchannels. Finally, we explore the potential applications of this method in information encryption/decryption and microtarget capturing. | Zhaoxin Lao Rui Sun Dongdong Jin Zhongguo Ren Chen Xin Yachao Zhang Shaojun Jiang Yiyuan Zhang Li Zhang | 2021 | International Journal of Extreme Manufacturing2021，3，2： | 1 |
| 18 | Accurate Determination of Isthmus of Lumbar Pedicle: A Morphometric Study using Reformatted Computed Tomographic Images显示文摘 | Bing Li Baoguo Jiang Zhongguo Fu Diangying Zhang Tianbing Wang | 2004 | Spine2004，，21： | 1 |
| 19 | Performance test of energy dissipation bearing and its application in seismic control of a longspan bridge 显示文摘 | GUAN Zhongguo LI Jianzhong XU Yan | 2010 | Joumal of Bridge Engineering2010，15，6： | 1 |
| 20 | Punctuation as Implicit Annotations for Chinese Word Segmentation 显示文摘 | Zhongguo Li andMaosong Sun | 2009 | Computational Linguistics2009，35，4： | 1 |
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