|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | New-type urbanization in China: Predicted trends and investment demand for 2015-2030显示文摘The future development of new-type urbanization has drawn great attention from both the government and public alike. In this context, the present study had three related research aims. Firstly, it sought to predict the urbanization and population dynamics in China at both national and provincial levels for the period of 2015 to 2030. Secondly, on this basis, it sought to examine the spatial variation of urbanization given the predicted national urbanization rate of 70.12%. Thirdly, it sought to estimate and evaluate the national and provincial demands of investment in the development of new-type urbanization. The main conclusions from this study were as follows:(1) The population size and urbanization rate will reach 1.445 billion and 70.12%, respectively, from 2015 to 2030.(2) The demographic dividend will vanish when the population pressure reaches its maximum. During this period, there will be 70.16 million urban population born. The suburban population that becomes urbanized will be 316.7 million, and thus the net increase in urban population will reach 386 million.(3) Although the urbanization rate of every Chinese province will increase during 2015–2030, it will do so unequally, while differences in urbanization quality among provinces will also be substantial. In some provinces, moreover, the urbanization quality is not compatible with their eco-social development.(4) A total of 4,105,380 billion yuan is required to fund new-type urbanization and the investment demand for each province varies greatly; for example, Guangdong province requires the most funding, amounting to approximately 148 times that required by Tibet, the province in least need of funding. In the final part of this study, policy suggestions concerning the investment of the new-type urbanization are put forward and discussed. | SUN Dongqi ZHOU Liang LI Yu LIU Haimeng SHEN Xiaoyan WANG Zedong WANG Xixi | 2017 | Journal of Geographical Sciences2017，27，8： | 9 |
| 2 | Zoning assessment of water environmental supporting capacity for socioeconomic development in the Huaihe River Basin, China显示文摘在在 Huaihe 河盆(HRB ) 的 humanwater 关系中有实质的冲突。没有降级,完成持续经济开发在 HRB 的水环境,我们开发三维的水环境支持能力(WESC ) 基于水为环境带能力(WECC ) 建模,浇环境压力(WEP ) ,并且浇污染预防和控制能力(WPPC ) 。地理信息系统有分析层次过程方法和动态加权的求和的空间分析被使用。为为工业的合适的地点和为水的环境保护策略的几个建议被介绍。下列结果被获得。(1 ) 在 WECC 的空间差别是实质的;有高值的 WECC 地区的区域主要沿着 Huaihe 河的主要溪流位于南方方面。WEP 通常高,与在整个 HRB 的污染预防和控制的全面底层。WPPC 和 WEP 显示出由于有更高环境的污染的区域通常有经济开发的高水平的事实的高空间的重叠,并且因此为污染控制有一个强壮的能力。(2 ) 总的来说, WESC 在 HRB 是中等的。特别地,有高 WESC 价值的区域仅仅在 2010 说明 56.24% HRB。在 WESC 的不同差别也在位于南方与相比的区域之间存在在盆,和区域的北方在下游的区域与相比在在上游并且中流区域。(3 ) 因而根据为在 HRB 的工业 zoning 的指导,在南方并且在的区域下游并且有低 WEP 值和高 WECC 和 WPPC 的亚溪流,传统的工业应该基于严格的环境存取和污染排放标准被开发。当为沿着 HRB 的中流并且沿着整个 Yishusi 河盆,有高 WEP 价值,的区域工业重构并且工艺的升级被建议时。措施应该在被采取限制开发并且在盆的在上游的区域保护环境,它是喝水的关键来源,在沿着 South-to-North 水转向工程的线的东方线路,并且在生态地易碎的区域盆。,这将包括干净的水的实际存在的预备保证好环境功能同时令人满意调整,转变,并且升级工业结构的迫切需要。 | ZHOU Liang SUN Dongqi XU Jiangang | 2015 | Journal of Geographical Sciences2015，25，10： | 4 |
| 3 | Mechanical tests on the reconstructed anterior cruciate ligament fixed with allogenetic cortical bone cross-pin on the femoral side显示文摘 | Liu Chang Liu Yujie Zhang Yingze Qu Feng Li Shuyuan Wang Junliang Qi Wei Wang Aiyuan Wang Xin Liang Jianjun Liang Dongqi Zhu Juanli Liu Yang | 2014 | Chinese Medical Journal2014，，15： | 3 |
| 4 | Energy Abundance and China's Economic Growth: 2000–2014显示文摘Based on the interprovincial panel data of 2000–2014, this paper carries out an empirical analysis on the relationship between energy abundance and economic growth to test the theoretical hypothesis of ‘resource curse' and explore its transmission mechanism for China and its three regions. The results show that, at the national level, positive correlation is present between energy abundance and economic growth, proving that the ‘resource curse' phenomenon does not exist in China as a whole. Moreover, material capital input, human capital input and the level of opening to the outside world could promote economic growth, while technology innovation input may hinder economic growth. As seen by region, a positive correlation also exists between the energy abundance and economic growth in the eastern and western regions, and there is no ‘resource curse' phenomenon either. In all three regions, the human capital input could promote economic growth. Material capital input could promote economic growth in the eastern but hinder economic growth in the western region; the level of opening to the outside world could promote economic growth in the eastern region. It is known through further survey and analysis on the transmission mechanism of resource curse that, at the national level, material capital input, human capital input, and the level of opening to the outside world present positive correlation with energy abundance, indicating that energy development becomes an important transmission factor by strengthening material capital input and human capital input and raising the level of opening to the outside world. However, technology innovation input presents negative correlation with energy development. As seen by region, both the material capital input and human capital input present positive correlation with energy development strength in the three regions. Similar as the eastern region, the level of opening to the outside world presents positive correlation with energy industry development in the middle and western regions; however, the energy development presents negative correlation with technology input level in the western region. | SUN Dongqi LU Dadao LI Yu ZHOU Liang ZHANG Mingdou | 2017 | Chinese Geographical Science2017，27，5： | 1 |
| 5 | Passivation of Ge surface treated with trimethylaluminum and investigation of electrical properties of HfTiO/Ge gate stacks显示文摘In the current work, in situ surface passivation Ge substrate by using trimethylaluminum(TMA) prior to HfTiO films deposition and electrical properties of HfTiO/Ge gate stacks have been investigated by X-ray photoelectron spectroscopy(XPS) and electrical measurements systematically. Based on analysis from XPS measurements, it has been confirmed that the interfacial layer of HfTiO/Ge gate stack has been suppressed effectively after 20 half-ALD cycles TMA pretreatment. Electrical properties of metal-oxidesemiconductor(MOS) capacitor based on HfTiO gate dielectrics have shown that the MOS capacitor with20 cycles TMA cleaning exhibits the lowest interface state density(~7.56 eV^(-1)cm^(-2)) and the smallest leakage current(~2.67 × 10^(-5)A/cm^2). Correspondingly, the leakage current conduction mechanisms for MOS capacitor device with 20 cycles TMA cleaning also have been discussed in detail. | Juan Gao Gang He Dongqi Xiao Peng Jin Shanshan Jiang Wendong Li Shuang Liang Li Zhu | 2017 | Journal of Materials Science & Technology2017，33，8： | 1 |
| 6 | Effect of post-heat treatment on Ti_(2)AlNb-based alloy fabricated by twin-wire alternating dual-electron beam additive manufacturing technology显示文摘Thanks to its excellent high-temperature performance and moderate density,Ti_(2) AlNb-based alloy is con-sidered to be a new generation of high-temperature structural material in the aerospace field.However,its application is restricted currently due to the limitations of traditional processing methods.Recently,our group first successfully prepared this alloy with an unconventional approach named wire-based in-situ additive manufacturing(AM)technology,and great mechanical performance has been obtained.The unbalanced thermal process of AM easily causes inconsistent or undesired microstructures,as well as mechanical properties.Therefore,in this study,we further carried out post-heat treatment research on the as-printed sample so as to optimize its mechanical performance.Results show that theα2-phase will precipitate from the as-deposited samples(B2/β+O)after solution treatment(ST),while all precipitates were dissolved to the B2/β-matrix when the solution temperature was 1100℃.The aging treatment(AT)promoted a great number of O-phases precipitated and led to an increase in its proportion.With the increase in aging temperature,the tensile strength decreased(995 to 821 MPa)gradually coupling the increase of fracture strain(1.65%to 2.12%),while the aging duration time did not show an obvious ef-fect on its performance.In addition,after proper heat treatment,the high temperature(650℃)tensile strength of the samples was as high as 818 and 792 MPa.This research not only promotes the develop-ment of Ti_(2) AlNb-based alloy fabricated through in-situ AM,but also facilitates its further application in the aerospace field. | Zixiang Li Baohua Chang Dongqi Zhang Haoyu Zhang Zhiyue Liang Li Wang Changmeng Liu Dong Du | 2023 | Journal of Materials Science & Technology2023，，26： | 1 |
| 7 | Space-time analysis of the changing patterns of population pressure on the ecological environment in China显示文摘This paper examines the temporal change and spatial variation of population pressure on the ecological environment in China.We have collected sufficient data from the statistical yearbooks of 31 provincial administrative areas in 1990,1995,2000,2005,and 2010.Using a geographic information system(GIS) and relevant models,we analyzed the trend of the population pressure on ecological environment and the change of the gravity center of ecological environment quality.We conclude that:(1) generally,population pressure on the ecological environment in China was becoming higher during1990-2010,especially in some areas where the population and environment were in serious imbalance and the ecological environment experienced severe pollution;(2) during a certain period,population pressure on the ecological environment was becoming lower in some areas,but the ecological environment was getting worse;(3) the areas with super-high population pressure on the ecological environment were Beijing,Tianjin,and Shanghai;(4) the gravity center of population pressure on the ecological environment and the center of ecological environment quality move differently during the study time period,but the general trend was similar- both of them were moving from west to east.Based on the analysis,this paper also provides some policy suggestions on the control of ecological environment quality. | Dongqi Sun Jinliang Jiang Jianbin Xu Liang Zhou Yi Hu | 2015 | Chinese Journal of Population,Resources and Environment2015，13，4： | 1 |
| 8 | Spatial analysis of China’s eco-environmental quality: 1990–2010显示文摘 | Dongqi Sun Jingxiang Zhang Yi Hu Jinliang Jiang Liang Zhou | 2013 | Journal of Geographical Sciences2013，，4： | 1 |
| 9 | Spatiotemporal Evolution Characteristics of Urban Land Surface Temperature Based on Local Climate Zones in Xi’an Metropolitan,China显示文摘Local climate zones(LCZs)are an effective nexus linking internal urban structures to the local climate and have been widely used to study urban thermal environment.However,few studies considered how much the temperature changed due to LCZs transformation and their synergy.This paper quantified the change of urban land surface temperature(LST)in LCZs transformation process by combining the land use transfer matrix with zonal statistics method during 2000–2019 in the Xi’an metropolitan.The results show that,firstly,both LCZs and LST had significant spatiotemporal variations and synchrony.The period when the most LCZs were converted was also the LST rose the fastest,and the spatial growth of the LST coincided with the spatial expansion of the built type LCZs.Secondly,the LST difference between land cover type LCZs and built type LCZs gradually widened.And LST rose more in both built type LCZs transferred in and out.Finally,the Xi’an-Xianyang profile showed that the maximum temperature difference between the peaks and valleys of the LST increased by 4.39℃,indicating that localized high temperature phenomena and fluctuations in the urban thermal environment became more pronounced from 2000 to 2019. | ZHANG Liping ZHOU Liang YUAN Bo HU Fengning ZHANG Qian WEI Wei SUN Dongqi | 2023 | Chinese Geographical Science2023，33，6： | 0 |
| 10 | An Intrusion Detection Method for Advanced Metering Infrastructure System Based on Federated Learning显示文摘An advanced metering infrastructure(AMI)system plays a key role in the smart grid(SG),but it is vulnerable to cyberattacks.Current detection methods for AMI cyberattacks mainly focus on the data center or a distributed independent node.On one hand,it is difficult to train an excellent detection intrusion model on a self-learning independent node.On the other hand,large amounts of data are shared over the network and uploaded to a central node for training.These processes may compromise data privacy,cause communication delay,and incur high communication costs.With these limitations,we propose an intrusion detection method for AMI system based on federated learning(FL).The intrusion detection system is deployed in the data concentrators for training,and only its model parameters are communicated to the data center.Furthermore,the data center distributes the learning to each data concentrator through aggregation and weight assignments for collaborative learning.An optimized deep neural network(DNN)is exploited for this proposed method,and extensive experiments based on the NSL-KDD dataset are carried out.From the results,this proposed method improves detection performance and reduces computation costs,communication delays,and communication overheads while guaranteeing data privacy. | Haolan Liang Dongqi Liu Xiangjun Zeng Chunxiao Ye | 2023 | Journal of Modern Power Systems and Clean Energy2023，11，3： | 0 |
| 11 | Food-Borne Poisoning Accident from Amanitin Toxin in Wild Mushrooms—Xingtai City,Hebei Province,China,2023显示文摘Summary What is already known about this topic?Fatal poisonings caused by wild mushrooms containing amanita toxins pose a significant threat in the southern regions of China.These toxins primarily induce gastrointestinal symptoms initially,which are then followed by potentially life-threatening acute liver damage.What is added by this report?This report contributes to the existing knowledge on these cases of poisoning by documenting the second occurrences in Hebei Province and the first occurrences in Xingtai City.Five individuals reported consuming wild mushrooms from the same origin,and laboratory tests confirmed the presence ofα-amanitin in their blood samples.What are the implications for public health practice?This underscores the risk associated with the collection and consumption of amanita toxin-containing mushrooms in Hebei.It is important to note that the identification of toxic and non-toxic mushrooms should not solely rely on personal experience or appearance. | Baopu Lv Liang Liu Hao Xiao Qingbing Meng Rui Zhang Yaqing An Yingli Jin Yu Ma Hengbo Gao Yongkai Li Qian He Yutao Zhang Changqing Liu Xiaoyan Luo Xiaomin Xu Fenshuang Zheng Yingping Tian Hongshun Zhang Dongqi Yao | 2024 | China CDC weekly2024，6，3： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员