|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Basin assemblages and tectonic evolution in the Bohai Gulfand its neighbors显示文摘According to multi- disciplinary research advances in recent years, three blocks which named Jiaoliao - Bohai block, central North China block and Ordos block are divided. The differences of the tectonic association, types, styles and features in the space, and evolution from Archaean to Cenozoic in the time, between the former two blocks are discussed. Tectonic features and evolution in the four tectonic stages of Precambrian, Indo- China, Yanshanian and Cenozoic are emphasized especially here. All of them described above have inherit and neogenic property. The temporal-spatial change and interaction among basin assemblages in the above four stages are analyzed. Escape tectonic model is employed to interpret coeval compressive and extensional basins in the study area. | Li Sanzhong Xu Shumei Shan Yehua Li Xishuang Zhou Lihong Hao Yinquan Fan Zheqing Liang Huilan | 2000 | Acta Oceanologica Sinica2000，19，4： | 7 |
| 2 | Comparison of algorithms for monitoring wheat powdery mildew using multi-angular remote sensing data显示文摘Powdery mildew is a disease that threatens wheat production and causes severe economic losses worldwide. Its timely diagnosis is imperative for preventing and controlling its spread. In this study, the multiangle canopy spectra and disease severity of wheat were investigated at several developmental stages and degrees of disease severity. Four wavelength variable-selected algorithms: successive projection(SPA), competitive adaptive reweighted sampling(CARS), feature selection learning(Relief-F), and genetic algorithm(GA), were used to identify bands sensitive to powdery mildew. The wavelength variables selected were used as input variables for partial least squares(PLS), extreme learning machine(ELM), random forest(RF), and support vector machine(SVM) algorithms, to construct a suitable prediction model for powdery mildew. Spectral reflectance and conventional vegetation indices(VIs) displayed angle effects under several disease severity indices(DIs). The CARS method selected relatively few wavelength variables and showed a relatively homogeneous distribution across the 13 viewing zenith angles.Overall accuracies of the four modeling algorithms were ranked as follows: ELM(0.70–0.82) > PLS(0.63–0.79) > SVM(0.49–0.69) > RF(0.43–0.69). Combinations of features and algorithms generated varied accuracies, with coefficients of determination(R^(2)) single-peaked at different observation angles. The constructed CARS-ELM model extracted a predictable bivariate relationship between the multi-angle canopy spectrum and disease severity, yielding an R^(2)> 0.8 at each measured angle. Especially for larger angles,monitoring accuracies were increased relative to the optimal VI model(40% at-60°, 33% at +60°), indicating that the CARS-ELM model is suitable for extreme angles of-60° and +60°. The results are proposed to provide a technical basis for rapid and large-scale monitoring of wheat powdery mildew. | Li Song Luyuan Wang Zheqing Yang Li He Ziheng Feng Jianzhao Duan Wei Feng Tiancai Guo | 2022 | The Crop Journal2022，10，5： | 2 |
| 3 | Improved filtered mesoscale interphase heat transfer model显示文摘Mesoscale structures that form in gas-solid flows considerably affect interphase heat transfer.A filtered interphase heat transfer model accounts for the effects of unresolved mesoscale structures is required in coarse-grid simulations.In the literature,researchers obtain the filtered interphase heat transfer coefficient using a correction(Q)to the microscopic interphase heat transfer coefficient.Available models are based on filtered data in the range 01 is non-negligible.This percentage can reach approximately 20%when the dimensionless filter size is smaller than 1.028(66.7×the particle diameter).We proposed an improved filtered interphase heat transfer model by considering the data in the range Q<0 and Q>1.We evaluated the predictive power of our model in an a priori test.Our model has much better performance than other models when the dimensionless filter size△<8.222. | Yu Li Yaxiong Yu Chi Zhang Zheqing Huang Qiang Zhou | 2021 | Particuology2021，19，4： | 1 |
| 4 | Hearts from rodents exposed to inter-mittent hypoxia or erythropoietin are protected against ischemia-reperfusion injury 显示文摘 | Zheqing Cai Dominador J M Guo Wei | 2003 | Circulation2003，108，： | 1 |
| 5 | Hearts From Rodents Exposed to Intermittent Hypoxia or Erythropoietin Are Protected Against Ischemia-Reperfusion Injury显示文摘 | Zheqing Cai Dominador J. Manalo Guo Wei Rene E. Rodriguez Karen Fox-Talbot Huasheng Lu Jay L. Zweier Gregg L. Semenza | 2003 | Circulation2003，，1： | 1 |
| 6 | Hypoxia-inducible factor 1 transcriptional activity in endothelial cells is required for acute phase cardioprotection induced by ischemic preconditioning显示文摘 | Kakali Sarkar Zheqing Cai Rigu Gupta Nirmal Parajuli Karen Fox-Talbot Medha S. Darshan Frank J. Gonzalez Gregg L. Semenza | 2012 | Proceedings of the National Academy of Sciences2012，，26： | 1 |
| 7 | Hearts from rodents exposed to intermittent hypoxia or erythropoietin are protected against ischemia-reperfusion injury 显示文摘 | Cai Zheqing Dominador JM Guo Wei | 2003 | Circulation2003，108，： | 1 |
| 8 | Study of Machining Error Forecast in NC Lathe显示文摘This paper brings forward a kind of machining error forecast principle in NC lathe simulation system.It com- bines the method of math,dynamic,material and mechanism,etc,sums up the factors which can affect the machining error,co- alescent knowledge of mechanism manufacture technique and interconvert characteristic,mapped the change of physics factor in cut- ting process into virtual manufacture system by mathematical model.On the platform of Windows 2000 and Visual C++,ap- plying program is developed by use of C++.The lean warehouse of MATLAB is transferred in order to command MATLAB on the language platform of MATLAB,and then the curve of the results is drawn by the outcome of calculation,which is based on the mathematical model in order to manifest the simulation results in the pattern of data and curve. | LIU Jiwei ZHANG Ying YANG Zheqing (Shenyang Institute of Aeronautical Engineering,Shenyang,Liaoning 110034,China | 2006 | 武汉理工大学学报2006，28，S2： | 0 |
| 9 | Application of Energy Saving Technology in Trichlorosilane Distillation Purification Process显示文摘The trichlorosilane(TCS)purification process consumes a significant amount of energy to achieve the high purity requirement for TCS quality(99.9999%).This work proposed a series of energy saving technology to enhance the TCS purification process,including the conventional process,the conventional process coupled with heat-pump(HP),the multi-effect distillation process,and the dividing-wall columns process.All proposed schemes have been conceptually constructed by Aspen Plus.The design and optimization of the processes have been performed by the sensitivity analysis and the response surface methodology.Moreover,the energy consumption and total annual cost(TAC)for these schemes were discussed.The simulation results show that the TAC of the conventional process coupled with the integrated heat pump can reduce 50.5%of energy consumption as compared with the conventional process;the double-effect and three-effect processes can save 15.6%and 33.8%of energy consumption,respectively;the dividing wall column process and that coupled with the heat pump process can reduce by 22.3%and 48.1%of energy consumption,respectively.It can be found that the operating cost can be saved by using the heat pump technology,while the capital cost increases due to the investment in the compressor,when the processes coupled with the heat pump are used.These results demonstrate that the conventional process coupled with the HP technology has advantages over other distillation schemes for TCS purification in terms of the energy saving and economic effects. | Qie Siyuan Pang Weiwei Zhao Ming Huang Zheqing | 2019 | China Petroleum Processing & Petrochemical Technology2019，21，3： | 0 |
| 10 | Motion Segmentation Based on Dual Interrelated Models显示文摘Motion segmentation plays an important role in many vision applications,yet it is still a challenging problem in complex scenes.The typical conditions in real world scenarios like illumination variations,dynamic backgrounds and camera shaking make negative effects on segmentation performance.In this paper,a newly designed method for robust motion segmentation is proposed,which is mainly composed of two interrelated models.One is a normal random model(N-model),and the other is called enhanced random model(E-model).They are constructed and updated in spatio-temporal information for adapting to illumination changes and dynamic backgrounds,and operate in an AdaBoost-like strategy.The exhaustive experimental evaluations on complex scenes demonstrate that the proposed method outperforms the state-of-the-art methods. | FAN Zhihui LI Zheqing LI Peiyu WANG Hui | 2017 | Wuhan University Journal of Natural Sciences2017，22，1： | 0 |
| 11 | Effect of Particle Orientation on Heat Transfer in Arrays of Prolate Particles显示文摘Direct Numerical Simulations have been carried out to study the forced convection heat transfer of flow through fixed prolate particles for a variety of aspect ratios ar={5/4,5/3,5/1}with Reynolds number(Re)up to 100.Three variations of the solid volume fraction c={0.1,0.2,0.3}with four Hermans orientation factors S={−0.5,0,0.5,1}are studied.It has been found that changes in S cause prominent variations in the Nusselt number.In general,Nusselt number increases with the decrease of S.For all three aspect ratios,the Nusselt number remains a linear function of S at different c and Re.Therefore,it is concluded that,for heat transfer from prolate muti-particle system,the effects of orientations cannot be ignored.A new correlation for Nusselt number has been developed for arrays of prolate particles using the simulation data as a function of Re,c,S and ar. | Romana Basit Xinyang Li Zheqing Huang Qiang Zhou | 2023 | Computer Modeling in Engineering & Sciences2023，，8： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员