|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Land Use Allocation Based on Interval Multi-objective Linear Programming Model: A Case Study of Pi County in Sichuan Province显示文摘Adjusting and optimizing land use structure is one of the essential approaches to solve the conflict between land supply and demand. In this study,an uncertain interval multi-objective linear programming model was established and applied to analyzing the suitability of land use structure in Pi County of Sichuan Province. An adjustment scheme for optimizing land use structure was proposed on the basis of development planning drawn up by the local government. The results are summarized as follows: 1) the optimal adjustment scope for cropland area ranges from 27 976.75 ha to 31 029.08 ha,and the current area is less than the lower limit of the scope; 2) the optimal adjustment scope for garden land area ranges from 4 736.49 ha to 12 967.11 ha,and the current area is less than the lower limit; 3) the optimal adjustment scope for construction land ranges from 7 761.95 ha to 10 393.18 ha,and the current area is greater than the upper limit; 4) the optimal adjustment scope for industry and mining land ranges from 557.29 ha to 693.54 ha,and the current area exceeds the upper limit; and 5) the areas of forest land,grassland and other agricultural land are within the optimal adjustment scope. In order to maximize comprehensive benefit with the limited resources and the demand of sustainable development,the areas of cropland and garden land are supposed to be expanded properly,while the construction land should be controlled and reduced gradually,and the forest land and other agricultural land can be maintained at the current level in short period. | WANG Hongrui GAO Yuanyuan LIU Qiong SONG Jinxi | 2010 | Chinese Geographical Science2010，20，2： | 10 |
| 2 | Soil Microbial Population Dynamics along a Chronosequence of Moist Evergreen Broad-leaved Forest Succession in Southwestern China显示文摘Little is known about whether soil microbial population dynamics are correlated with forest succession.To test the hypotheses that(1) soil microbial composition changes over successional stages,and(2) soil microbial diversity is positively correlated with plant species diversity,we determined the soil microbial populations,community composition,and microflora diversity in evergreen broad-leaved forests along a chronosequence of vegetation succession from 5 to 300 years in southwestern China.The soil microbial community was mainly composed of bacteria(87.1-98.7% of the total microorganisms and 10 genera identified),fungi(0.3-4.0%,7 genera),and actinomycetes(2.1-9.1%,8 species and 1 genus).There were significant differences in soil microbial populations among different successional stages and within the four seasons.The seasonal variations of the soil microbial community may be associated with the seasonal changes in environmental conditions.The changes in soil microbial diversity(Shannon-Wiener index) with successional time followed one-humped,convex curves peaked at-100 years since restoration,which is identical with the trends of the aboveground plant diversity.Higher plant diversity resulting in enhanced nutrient flow and root exudation may contribute to positive relationships between the soil microbial diversity and plant diversity.Hence,decreases in soil microbial diversity in the late-successional stages appear to be related to the net loss in species richness that occurs after 100 years since restoration.Our findings confirm the intermediate disturbance hypothesis that suggests diversity peaks at midsuccessional stages. | ZHU Wanze CAI Xiaohu LIU Xingliang WANG Jinxi CHENG Song ZHANG Xiuyan LI Dengyu LI Maihe | 2010 | Journal of Mountain Science2010，7，4： | 8 |
| 3 | Whole genome sequencing of 10K patients with acute ischaemic stroke or transient ischaemic attack: design, methods and baseline patient characteristics显示文摘Background and purpose Stroke is the second leading cause of death worldwide and the leading cause of mortality and long-term disability in China,but its underlying risk genes and pathways are far from being comprehensively understood.We here describe the design and methods of whole genome sequencing(WGS)for 10914 patients with acute ischaemic stroke or transient ischaemic attack from the Third China National Stroke Registry(CNSR-III).Methods Baseline clinical characteristics of the included patients in this study were reported.DNA was extracted from white blood cells of participants.Libraries are constructed using qualified DNA,and WGS is conducted on BGISEQ-500 platform.The average depth is intended to be greater than 30×for each subject.Afterwards,Sentieon software is applied to process the sequencing data under the Genome Analysis Toolkit best practice guidance to call genotypes of single nucleotide variants(SNVs)and insertion-deletions.For each included subject,21 fingerprint SNVs are genotyped by MassARRAY assays to verify that DNA sample and sequencing data originate from the same individual.The copy number variations and structural variations are also called for each patient.All of the genetic variants are annotated and predicted by bioinformatics software or by reviewing public databases.Results The average age of the included 10914 patients was 62.2±11.3 years,and 31.4%patients were women.Most of the baseline clinical characteristics of the 10914 and the excluded patients were balanced.Conclusions The WGS data together with abundant clinical and imaging data of CNSR-III could provide opportunity to elucidate the molecular mechanisms and discover novel therapeutic targets for stroke. | Si Cheng Zhe Xu Yang Liu Jinxi Lin Yong Jiang Yilong Wang Xia Meng Anxin Wang Xinying Huang Zhimin Wang Guohua Chen Songdi Wu Zhengchang Jia Yongming Chen Xuerong Qiu Jun Wu Binbin Song Weizhong Ji Zhongping An Wenjun Xue Lili Zhao Yu Geng Hongyan Li Hao Li Yongjun Wang | 2021 | Stroke & Vascular Neurology2021，6，2： | 8 |
| 4 | WAVE PROPAGATION IN PIEZOELECTRIC/PIEZOMAGNETIC LAYERED PERIODIC COMPOSITES显示文摘这份报纸在分层的周期的 composites 由组成涉及波浪繁殖的动态行为压电并且 piezomagnetic 阶段。兰姆波浪的分散关系被导出。分散曲线和排水量地与不同压电的体积部分被计算。分散弄弯的 BaTiO3/CoFe2O4 composites 表演的数字结果在一个盘子中类似于对称的兰姆波浪。交换在之间纵(即厚度) 模式和联合模式发生在在开始的二个分支的分散曲线之间的转线路点。随 BaTiO3 体积部分的增加,转线路点在一个更低的波浪数字出现,波浪速度更高。这些调查结果为磁电的变换器应用程序是有用的。 | Yu Pang Jinxi Liu Yuesheng Wang Daining Fang | 2008 | Acta Mechanica Solida Sinica2008，21，6： | 7 |
| 5 | Exact Solutions for Piezoelectric Materials with an Elliptic Hole or a Crack under Uniform Internal Pressure显示文摘The existing investigations on piezoelectric materials containing an elliptic hole or a crack mainly focus on remote uniform tensile loads.In order to have a better understanding for the fracture behavior of piezoelectric materials under different loading conditions,theoretical and numerical solutions are presented for an elliptic hole or a crack in transversely isotropic piezoelectric materials subjected to uniform internal pressure and remote electro-mechanical loads.On the basis of the complex variable approach,analytical solutions of the elastic and electric fields inside and outside the defect are derived by satisfying permeable electric boundary condition at the surface of the elliptical hole.As an example of PZT-4 ceramics,numerical results of electro-elastic fields inside and outside the crack under various electric boundary conditions and electro-mechanical loads are given,and graphs of the electro-elastic fields in the vicinity of the crack tip are presented.The non-singular term is compared to the asymptotic one in the figures.It is shown that the dielectric constant of the air in the crack has no effect on the electric displacement component perpendicular to the crack,and the stresses in the piezoelectric material depend on the material properties and the mechanical loads on the crack surface and at infinity,but not on the electric loads at infinity.The figures obtained are strikingly similar to the available results.Unlike the existing work,the existence of electric fields inside an elliptic hole or a crack is considered,and the piezoelectric solid is subjected to complicated electro-mechanical loads. | LIU Shuhong SHEN Yingming LIU Jinxi | 2012 | Chinese Journal of Mechanical Engineering2012，25，4： | 7 |
| 6 | PROPAGATION BEHAVIORS OF SHEAR HORIZONTAL WAVES IN PIEZOELECTRIC-PIEZOMAGNETIC PERIODICALLY LAYERED STRUCTURES显示文摘This paper investigates shear horizontal(SH) waves propagating in a periodically layered structure that consists of piezoelectric(PE) layers perfectly bonded with piezomagnetic(PM) layers alternately.The explicit dispersion relations are derived for the two cases when the propagation directions of SH waves are normal to the interface and parallel to the interface,respectively.The asymptotic expressions for dispersion relations are also given when the wave number is extremely small.Numerical results for stop band effect and phase velocity are presented for a periodic system of alternating BaTiO3 and Terfenol-D layers.The influence of volume fraction on stop band effect and dispersion behaviors is discussed and revealed. | Jinxi Liu Weiyi Wei Daining Fang | 2010 | Acta Mechanica Solida Sinica2010，23，1： | 5 |
| 7 | Incidence and prevalence of moyamoya disease in urban China: a nationwide retrospective cohort study显示文摘Background and objective Moyamoya disease(MMD)is an increasingly recognised cause of stroke,mainly described in East Asia.China is the largest nation in Asia,but few studies reported the epidemiology of MMD,especially at a national level.We aimed to estimate the incidence and prevalence of MMD in China.Methods We performed a population-based study using data from the national databases of Urban Basic Medical Insurance between 2013 and 2016,covering approximately 0.50 billion individuals.MMD cases were identified by diagnostic code(International Classification of Diseases,10th Revision I67.5)or related diagnostic text.Results A total of 1987 MMD patients(mean age 44.45±14.30 years,female-to male ratio 1.12)were identified,representing a national crude incidence of 0.59(95%CI:0.49 to 0.68)and a prevalence of 1.01(95%CI:0.81 to 1.21)per 100000 person-years in 2016.Rates were higher in females than in males for the incidence(0.66 vs 0.52)and prevalence(1.05 vs 0.90).And the age-specific rates showed a bimodal distribution,with the highest peak in middle-aged group and the second peak in child group.Conclusions Our results confirm that MMD is relatively common in East Asians,but the rates in China were lower than those in other East Asian countries such as Japan and Korea.The unique epidemiological features,including a relatively weak female predominance and a shift in the highest peak of incidence from children to adults,revealed new sight into MMD.Further research is expected to explore the potential pathogenesis of MMD. | Yixin Sun Guoyu Zhou Jingnan Feng Lu Chen Guozhen Liu Jinxi Wang Qingliang Wang Junyou Yu Xiwang Yang Zheng Yang Pei Gao Shengfeng Wang Siyan Zhan | 2021 | Stroke & Vascular Neurology2021，6，4： | 4 |
| 8 | A novel aldo-keto reductase gene, IbAKR, from sweet potato confers higher tolerance to cadmium stress in tobacco显示文摘High concentrations of Cd can inhibit growth and reduce the activity of the photosynthetic apparatus in plants. In several plant species, aldo-keto reductases(AKRs) have been shown to enhance tolerance to various abiotic stresses by scavenging cytotoxic aldehydes;however, few AKRs have been reported to enhance Cd stress tolerance. In this study, the gene Ib AKR was isolated from sweet potato. The relative expression levels of Ib AKR increased significantly(approximately 3-fold) after exposure to 200 mmol$L–1 Cd Cl2 or 10 mmol$L–1 H2 O2. A subcellular localization assay showed that Ib AKR is predominantly located in the nucleus and cytoplasm.Ib AKR-overexpressing tobacco plants showed higher tolerance to Cd stress than wild-type(WT). Transgenic lines showed a significant ability to scavenge malondialdehyde(MDA) and methylglyoxal(MG). In addition,proline content and superoxide dismutase activity were significantly higher and H2 O2 levels were significantly lower in the transgenic plants than in the WT. Quantitative real-time PCR analysis showed that the reactive oxygen species(ROS) scavenging genes encoding guaiacol peroxidase(GPX), ascorbate peroxidase(APX), monodehydroascorbate reductase(MDHAR) and peroxidase(POD) were significantly upregulated in transgenic plants compared to WT under Cd stress. These findings suggest that overexpressing Ib AKR enhances tolerance to Cd stress via the scavenging of cytotoxic aldehydes and the activation of the ROS scavenging system. | Jinxi HUO Bing DU Sifan SUN Shaozhen HE Ning ZHAO Qingchang LIU Hong ZHAI | 2018 | Frontiers of Agricultural Science and Engineering2018，5，2： | 4 |
| 9 | Effects of electric/magnetic impact on the transient fracture of interface crack in piezoelectric-piezomagnetic sandwich structure: anti-plane case显示文摘Due to the incompatibility of the interlaminar deformations,the interface debonding or cracking usually happens in a layered magnetoelectric(ME)structure under an applied load.In this paper,the transient responses of the anti-plane interface cracks in piezoelectric(PE)-piezomagnetic(PM)sandwich structures are studied by the standard methods of the integral transform and singular integral equation.Discussion on the numerical examples indicates that the PE-PM-PE structure under electric impact is more likely to fracture than the PM-PE-PM structure under a magnetic impact.The dynamic stress intensity factors(DSIFs)are more sensitive to the variation of the active layer thickness.The effects of the material constants on the DSIFs are dependent on the roles played by PE and PM media during the deformation process. | Xing ZHAO Zhenghua QIAN Jinxi LIU Cunfa GAO | 2020 | Applied Mathematics and Mechanics(English Edition)2020，41，1： | 3 |
| 10 | Paleostress Reconstruction of Micangshan Anticlinorium on the Southern Margin of the Qinling Orogenic Belts,China显示文摘Brittle structures in rock of different ages can be used to establish the tectonic evolution of an orogenic belt through paleostress calculations. Micangshan is located at the southern margin of the Qinling orogenic belt,between the SE-trending Longmenshan fold-and-thrust belt and the arcuate Dabashan thrust-and-fold belt. Structural observations revealed that the dominant structures are reverse and strike-slip faults and folds with E–W and NE–SE trends. To increase knowledge of the tectonic evolution of the Micangshan anticlinorium,faults,joints,veins,and folds were measured at more than eighty sites. On the basis of structural analysis,it emerged that the multiphase paleostress fields became established after the oblique collision between the North and South China plates. The earliest stress field with N–S compression was established during the Micangshan uplift associated with the E–W trending faults and folds. Subsequently,a N–S extension occurred when the Qinling orogenic belt collapsed. Then NW–SE compression developed,with NE trending faults and folds forming in relation to Longmenshan thrusting toward southwest on the eastern margin of the Tibetan plateau. With the development of the arcuate Dabashan orogenic belt,the compression stress orientation of the Micangshan anticlinorium altered from NE–SW to E–W. | LI Jinxi LI Zhiwu LIU Shugen SUN Dong DENG Bin | 2015 | Acta Geologica Sinica(English Edition)2015，89，2： | 2 |
| 11 | DECAY RATE OF SAINT-VENANT END EFFECTS FOR PLANE DEFORMATIONS OF PIEZOELECTRIC-PIEZOMAGNETIC SANDWICH STRUCTURES显示文摘This paper is concerned with the decay of Saint-Venant end effects for plane deformations of piezoelectric(PE)-piezomagnetic(PM) sandwich structures,where a PM layer is located between two PE layers with the same material properties or reversely.The end of the sandwich structure is subjected to a set of self-equilibrated magneto-electro-elastic loads.The upper and lower surfaces of the sandwich structure are mechanically free,electrically open or shorted as well as magnetically open or shorted.Firstly the constitutive equations of PE materials and PM materials for plane strain are given and normalized.Secondly,the simplified state space approach is employed to arrange the constitutive equations into differential equations in a matrix form.Finally,by using the transfer matrix method,the characteristic equations for eigenvalues or decay rates are derived.Based on the obtained characteristic equations,the decay rates for the PE-PM-PE and PM-PE-PM sandwich structures are calculated.The influences of the electromagnetic boundary conditions,material properties of PE layers and volume fraction on the decay rates are discussed in detail. | Yan Xue Jinxi Liu | 2010 | Acta Mechanica Solida Sinica2010，23，5： | 2 |
| 12 | Li distribution and mode of occurrences in Li-bearing coal seam # 6 from the Guanbanwusu Mine, Inner Mongolia, northern China显示文摘 | Yuzhuang Sun Cunliang Zhao Yanheng Li Jinxi Wang Shiming Liu | 2012 | Energy Exploration & Exploitation2012，，1： | 1 |
| 13 | VIBRATION CONFINEMENT OF THICKNESS-SHEAR AND THICKNESS-TWIST MODES IN A FUNCTIONALLY GRADED PIEZOELECTRIC PLATE显示文摘We analyze shear-horizontal vibrations of a functionally graded piezoelectric plate of polarized ceramics or crystals of 6mm symmetry.The material of the central portion of the plate is different from that of the rest of the plate.It is shown that when the material properties of the central portion and the rest of the plate satisfy certain conditions,there exist trapped thicknessshear and thickness-twist modes whose vibrations are mainly confined within the central portion and decay quickly outside the central portion.The effects of the functionally graded material properties on the behaviors of the trapped modes are examined. | Yanping Kong Jinxi Liu | 2011 | Acta Mechanica Solida Sinica2011，24，4： | 1 |
| 14 | Li distribution and mode of occurrences in Li-bearing coal seam # 6 from the Guanbanwusu Mine, Inner Mongolia, northern China显示文摘 | Yuzhuang Sun Cunliang Zhao Yanheng Li Jinxi Wang Shiming Liu | 2012 | Energy Exploration & Exploitation2012，，1： | 1 |
| 15 | Interfacial Debonding of a Circular Inhomogeneity in Piezoelectric-Piezomagnetic Compositesunder Anti-Plane Mechanical and in-Plane Electromagnetic Loading显示文摘 | Soh Ai Kah Liu Jinxi | 2005 | Composite Science and Technology2005，65，9： | 1 |
| 16 | ENERGY TRAPPING OF THICKNESS-SHEAR AND THICKNESS-TWIST MODES IN A PARTIALLY ELECTRODED AT-CUT QUARTZ RESONATOR显示文摘The thickness-shear and thickness-twist vibrations of a finite and partially electroded AT-cut quartz resonator are investigated. The equations of anisotropic elasticity are used with the omission of the small elastic constant c 56 . An analytical solution is obtained using Fourier series from which the free vibration resonant frequencies, mode shapes, and energy trapping are calculated and examined. | Huijing He Guoquan Nie Jinxi Liu Jiashi Yang | 2012 | Acta Mechanica Solida Sinica2012，25，6： | 1 |
| 17 | HCIO4 - graphite intercalation compound and its thermally exfoliated graphite 显示文摘 | Wei Xinghai Liu Lang Zhang Jinxi | 2009 | Materials Letters2009，63，： | 1 |
| 18 | Thermal fracture analysis of a functionally graded orthotropic strip with a crack显示文摘 | Chen Jian Soh A K Liu Jinxi | 2004 | International Journal of Mechanics and Materials in Design2004，1，2： | 1 |
| 19 | The study of pyrite surface properties and effect mechanism with xanthate caused by the microscopic crystal structure and defects 显示文摘 | Jinxi Yu Wenli Liu | 2012 | Advanced Materials Research2012，，2： | 1 |
| 20 | Green’s functions for anisotropic magnetoelectroelastic solids with an elliptical cavity or a crack显示文摘 | Liu Jinxi Liu Xianglin Zhao Yongbin | 2001 | International Journal of Engineering Science2001，，12： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员