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1CO2 emissions and their bearing on China's economic development: the long view显示文摘Greenhouse-gas (GHG) emissions in China have aroused much interest, and not least in recent evidence of their reduction. Our intent is to place that reduction in a larger context, that of the process of industrialization. A lengthy time perspective is combined with a cross-sectional approachChina plus five other countries-and addressed through two general models. The findings are salutary. First, they suggest that a diversified economic structure is consistent with diminished intensity in energy use. Secondly, and the obverse of the first, they imply that a diversified energy structure promotes reductions in CO2 emissions. Finally, one is led inevitably to the conclusion that, together, the findings point to a path for countries to transform their economies while at the same time undertaking to drastically moderate their energy use, switching from a pattern of heavy carbon emissions to one in which lighter carbon emissions prevail. The implications of such findings for environmental management are enormous.ZHANGLei DanielTODD XIEHui CHENWenyan WUYingmei JIANGWei 2005Journal of Geographical Sciences2005,15,1:3
2A complex variable boundary element method for solving interface crack problems显示文摘Shi Junping Liu Xiehui Chen Yiheng 1999International Journal of Fracture1999,96,:1
3Estimation of Summer Rainfall over an Arid Area using AMSR-E Measurements:A Case Study in Xinjiang,China显示文摘Rainfall estimate in arid region using passive microwave remote sensing techniques has been a complex issue for some time.The main reason for this difficulty is that the high and variable emissivity of land surfaces greatly aggravates the complexity of the signatures from the rain cloud.The Xinjiang area,located in the northwest of China,holds all the typical characteristics of arid climate.A rainfall algorithm has been developed for this region by using the Advanced Microwave Scanning Radiometer for Earth Observing System(AMSR-E) measurements.The algorithm attempts to use all 12 chan-nels on the AMSR-E instrument and a two-step method calibrated over 11 days of hourly rain-gauge data.First,Stepwise Discriminant Analysis(SDA) used to optimally estimate rain pixels based on all 12 channels,although only three channels were found to be necessary.Next,a rain predicator scattering index was used to estimate rain rates.A linear relationship between the rain rates and the scattering index above the threshold of 3.0K was constructed with a simple approximately linear function.The estimated rain rates were compared with the rain-gauge data used to calibrate the method,and a good relationship was found with a root-mean-square error of 2.1mm/h.The numerical calculations and comparisons show that the algorithm works well in the Xinjiang area.Lei Wang1,Jun Wen1*,Wen Yang1,Hui Tian1,Tangtang Zhang1,Xiaokang Shi1,Xiehui Li2,Yizhou Zhao3,Yuan’an Jiang3,Yuanpeng Li3 1.Key Laboratory for Climate Environment and Disasters of Western China,Cold and Arid Regions Environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou Gansu 730000,China 2.College of Resource and Environment,Key Laboratory of Western China’s Environmental Systems,MOE,Lanzhou University,Lanzhou Gansu 730000,China 3.Xinjiang Climate Center,Urumqi Xinjiang 830002,China 2008Research in Cold and Arid Regions2008,,1:1
4AN INVESTIGATION ON STRESS INTENSITY FACTORS OF INTERFACE CRACK FOR THREE TYPES OF SPECIMENS显示文摘The problems of finite,bimaterial plates,bearing uniform tension,compact tension and threepoint bending,are studied by using the eigenfunction expansion variation method(EEVM).And interracialstress intensity factors(SIFs)are determined.The SIFs varying with shear modulus/z and Poisson’s ratiosof both materials are discussed.Shi Junping Liu Xiehui Mo Xiaoyi Chen Yiheng 2000Acta Mechanica Solida Sinica2000,13,1:0
5THE EXPLICIT FORMULATIONS FOR THE L-INTEGRAL显示文摘In this paper,a simple but inherent relation between the L-integral and the Bueeknerwork conjugate integral is proved for crack problems in isotropic,anisotropic,and dissimilar materi-als,respectively.It is found that,in the above-mentioned three cases,the L-integral,from the math-ematical point of view as well as in principle,arises from Betti’s reciprocal theorem.This means thatthe Bueckner work conjugate integral is a more general path-independent integral than the others sinceany other path-independent integrals could be derived by usin8 the Bueckner integral while choosing adifferent subsidiary stress-displacement field.Shi Junping Liu Xiehui Chen Yiheng 1999Acta Mechanica Solida Sinica1999,12,1:0
6Stability analysis of proportional delayed projection neural network for quadratic programming problem显示文摘At present,projection neural network(PNN)with bounded time delay has been widely used for solving convex quadratic programming problem(QPP).However,there is little research concerning PNN with unbounded time delay.In this paper,we propose the proportional delayed PNN to solve QPP with equality constraints.By utilizing homeo morphism mapping principle,we prove the proportional delayed PNN exists with unique equilibrium point which is the optimal solution of QPP.Simultaneously,delay-dependent criteria about global exponential stability(GES)and global polynomial stability(GPS)are also acquired by applying the method of variation of constants and inequality techniques.On the other hand,when proportional delay factor q is equal to 1,the proportional delayed PNN becomes the one without time delay which still can be utilized for solving QPP.But in most situations,q is not equal to 1,and time delay is unpredictable and may be unbounded in the actual neural network,which causes instability of system.Therefore,it is necessary to consider proportional delayed PNN.A numerical example demonstrates that,compared with the proportional delayed Lagrange neural network,the proportional delayed PNN is faster in terms of convergence rate.The possible reason is that appropriate parameters make the model converge to the equilibrium point along the direction of gradient descent.Xiehui Song Liqun Zhou Yu Wang Shiru Zhang Yuji Zhang 2023International Journal of Biomathematics2023,16,1:0
7Science and Interpretation: Two Approaches to Legal Philosophy显示文摘XieHui 2004Social Sciences in China2004,25,3:0
8The Teaching Mode Research of“Internet Plus Flipped Class”——Taking the Course of Satellite Meteorology as Example显示文摘Based on the existing disadvantages of traditional teaching mode of Satellite Meteorology course in Chengdu University of Information Technology and the new teaching mode overview of“Internet Plus flipped class”,this paper is mainly to construct flipped class teaching mode of Satellite Meteorology under the background of“Internet Plus”in Chengdu University of Information Technology.Through the Internet,it also tries to integrate this teaching mode into flipped class before class,in class,after class,which means to provide a new thought for the teaching of this course in colleges and universities.Xiehui Li Lei Wang 2020Review of Educational Theory2020,3,3:0
9Exploration on the Construction of Online and Offline Blending Teaching Mode in the Introduction to Earth Science显示文摘The course“Introduction to earth science”is a basic general course integrating science and interest run by the School of Atmospheric Sciences in Chengdu University of Information Technology.It is also a public elective course for the cultivation of college students'scientific quality.With the development of Internet plus education and the promotion of information technology,the paper combines the traditional offline teaching mode with the online teaching mode adopted during the spring semester in 2020 because of the COVID-19,giving full play to the advantages of the two teaching modes.According to the school's teaching environment and teaching objectives,the online and offline blending teaching mode is constructed by introducing the recording of course video+MOOC+SPOC+online resources of high-quality open courses+Flipped Classroom+Rain Classroom+QQ group+WeChat+Tencent meeting,in order to improve the comprehensive teaching performance,and provide an important reference for the educational reform of similar courses in the post epidemic era.Xiehui Li 2021Journal of Educational Theory and Management2021,5,2:0
10Dual stimulus responsive borosilicate glass(BSG)scaffolds promote diabetic alveolar bone defectsrepair by modulating macrophage phenotype显示文摘The regeneration of alveolar bone is still clinical challenge,particularly accompanied with diabetes,causing metabolic disorder with a protracted low-grade inflammatory phenotype.As a result,the anticipated loading of biomaterials is highly suspicious in spontaneous modulation of cells function,which is mostly disturbed by constant inflammation.In this study,we developed glucose and hydrogen peroxide dual-responsive borosilicate glass(BSG)scaffolds loaded with epigallocatechin gallate(EGCG)to synergistically modulate the abnormal inflammation of diabetic alveolar bone defects.It was found that the release of EGCG by BSG could directly regulate the shift of macrophages from M1 to the M2 phenotype by promoting autophagy and lessening the inhibition of autophagic flux.Moreover,EGCG can also indirectly regulate the polarization phenotype of macrophages by reducing the activation of NF-κb in stem cells and restoring its immunoregulatory capacity.Therefore,the addition of EGCG to BSG scaffold in diabetes allows for a more striking modulation of the macrophage phenotype in a timely manner.The altered macrophage phenotype reduces local inflammation and thus increases the ability to repair diabetic alveolar bone,showing promise for the treatment of alveolar defect in diabetic patients.Pengfei Tian Limin Zhao Jua Kim Xian Li Chunyu Liu Xu Cui Tao Liang Yunbo Du Xiehui Chen Haobo Pan 2023Bioactive Materials2023,,8:0
11Moving research direction in the field of metallic bioresorbable stents-A mini-review显示文摘In contrast to polymer bioresorbable stents(BRS)that exhibited suboptimal performance in clinical trials due to their deficient mechanical properties,metallic BRS with improved mechanical strength have made their way into the clinic and have demonstrated more promising results.In the roadmap of research and development of metallic BRS,magnesium and iron based biodegradable metal stents had been clinically used,and the zinc based biodegradable metal stents had been trailed in Mini-Pigs.In this mini-review paper,we demonstrate the current technology levels and point out the future R&D direction of metallic BRS.Magnesium based BRS should target for decreasing struct thickness meanwhile balancing with enough supporting strength.Iron based BRS should move towards high efficient absorption,conversion,metabolism,elimination of its degradation products.Zn based BRS should strive to improve mechanical stability,creep resistance and biocompatibility.Future R&D directions of metallic BRS should move towards new materials such as Molybdenum,intelligent stent integrated with degradable biosensors,and new stent with multiple biofunctions,such as NO release.Xiehui Chen Rong Chang Hongtao Liu Le Zhang Yufeng Zheng 2023Bioactive Materials2023,,6:0
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