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| 1 | Spatio-Temporal Impact of Rural Livelihood Capital on Labor Migra- tion in Panxi, Southwestern Mountainous Region of China显示文摘Labor migration to urban centers is a common phenomenon in the Panxi region of the southwestern mountainous region of China, mainly owing to inadequate livelihood capital in rural areas. Numerous studies have been conducted to explore the relationship between labor migration and its causes, such as individual and family characteristics, but few studies have focused on livelihood capital. This paper examines the impact factors on labor migration employment location selection and duration from a household livelihood capital perspective. A case study of 279 households from 10 villages in the area was carried out in February 2016. We used both qualitative and quantitative methods to analyze the data. On the basis of the 279 questionnaires, the proportion of households with non-labor migration is 48.4%, whereas households with labor migration within a local city and migration across regions account for 28.7% and 22.9%, respectively. Social, financial, and human capitals are the primary factors that influence migrants' employment location choice positively. Among them, social capital has a significant impact on both migration within a local city and across regions; each of the regression coefficients is 1.111 and 1.183. Social, human, and financial capitals also have a positive impact on the duration of labor migration, and similarly, social capital is the highest coefficient with 2.489. However, physical capital only partly impacts labor migration across regions, whereas the impact of labor migration within a local city, and the duration, are not significant. Furthermore, the impact of household natural capital on migration space and time are all negative relationships, especially for labor migration across the regions and duration, with coefficient scores of 4.836 and 3.450, respectively. That is to say, a laborer is inclined to migrate within a local city for a short term, or not migrate at all, if natural capital is abundant. Our analysis results show that household livelihood capital has a strong spatio-temporal impact on labor migration. | WAN Jiangjun DENG Wei SONG Xueqian LIU Ying ZHANG Shaoyao SU Yi LU Yafeng | 2018 | Chinese Geographical Science2018,28,1: | 5 |
| 2 | Model test and numerical simulation on the dynamic stability of the bedding rock slope under frequent microseisms显示文摘Shake table testing was performed to investigate the dynamic stability of a mid-dip bedding rock slope under frequent earthquakes. Then, numerical modelling was established to further study the slope dynamic stability under purely microseisms and the influence of five factors, including seismic amplitude, slope height, slope angle, strata inclination and strata thickness, were considered. The experimental results show that the natural frequency of the slope decreases and damping ratio increases as the earthquake loading times increase. The dynamic strength reduction method is adopted for the stability evaluation of the bedding rock slope in numerical simulation, and the slope stability decreases with the increase of seismic amplitude, increase of slope height, reduction of strata thickness and increase of slope angle. The failure mode of a mid-dip bedding rock slope in the shaking table test is integral slipping along the bedding surface with dipping tensile cracks at the slope rear edge going through the bedding surfaces. In the numerical simulation, the long-term stability of a mid-dip bedding slope is worst under frequent microseisms and the slope is at risk of integral sliding instability, whereas the slope rock mass is more broken than shown in the shaking table test. The research results are of practical significance to better understand the formation mechanism of reservoir landslides and prevent future landslide disasters. | Deng Zhiyun Liu Xinrong Liu Yongquan Liu Shulin Han Yafeng Liu Jinhui Tu Yiliang | 2020 | Earthquake Engineering and Engineering Vibration2020,19,4: | 3 |
| 3 | The removal of silicon and boron from ultra-pure water by electrodeionization显示文摘 | Wen Ruimei Deng Shouquan Zhang Yafeng | 2005 | Desalination2005,181,13: | 1 |
| 4 | The Removal of Silicon and Boron from Ultra-Pure Water by Electro-Deionization 显示文摘 | WEN Ruime DENG Shouquan ZHANG Yafeng | 2005 | Desalination2005,181,13: | 1 |
| 5 | Coating of α-MoO 3 on nitrogen-doped carbon nanotubes by electrodeposition as a high-performance cathode material for lithium-ion batteries显示文摘 | Hui Zhang Xiaojiang Liu Ruilin Wang Rui Mi Shaomin Li Yanhua Cui Yafeng Deng Jun Mei Hao Liu | 2015 | Journal of Power Sources2015,,: | 1 |
| 6 | Tumor suppressor p53 functions as an essential antiviral molecule against Japanese encephalitis virus显示文摘Japanese encephalitis virus(JEV)is a mosquito-borne virus of the family Flaviviridae.It is the causative agent of Japanese encephalitis with approximately 50,000 infection cases and 10,000 fatal cases annually in Asia(Erlanger et al.,2009).Although liveattenuated JEV vaccine has been developed and used for human and pig vaccination,JE occurs epidemically or sporadically | Xufang Deng Jianchao Wei Zixue Shi Wenjun Yan Zhuanchang Wu Donghua Shao Beibei Li Ke Liu Xiaodu Wang Yafeng Qiu Zhiyong Ma | 2016 | Journal of Genetics and Genomics2016,43,12: | 1 |
| 7 | Urbanization and Its Impact on Rural Livelihoods:A Study of Xichang City Administration,Sichuan Province,China显示文摘This study examines urbanization in Xichang city administration(XCA)and its implications on rural livelihoods.Time series data on population size and land use(1990-2010)of Xichang city administration were gathered from population censuses and revenue records.The data were analyzed to observe changes in population size and land use/cover during the recorded period.Along with this,a case study of seven villages that are highly influenced by urban expansion in close proximity to Xichang city was carried out.We surveyed 110 households of selected villages using purposive-random sampling method and framed a structured questionnaire on urbanization implications for them.Descriptive statistics,correlation and regression model was employed to analyze the data.From 1990 to 2010,the authors observed an enormous transformation in urban landscapes as the urban area has increased by 14.02 km^(2)(111%)and about 20.65 km^(2)(16 times)increase in public transit construction land.On the other hand,paddy fields and grasslands of the selected villages have decreased by 16.6 km^(2)(4.9%)and 35.43 km^(2)(8.4%),respectively.Along with urbanization,out-migration as well as medical and educational facilities has increased while agriculture and livestock activities have decreased.The study suggested that to lessen the impact of urbanization in rural areas,agricultural and its allied practices should be intensified so as to augment employment and reduce out-migration from the rural areas. | Vishwambhar Prasad SATI DENG Wei LU Yafeng ZHANG Shaoyao WAN Jiangjun SONG Xueqian | 2017 | Chinese Journal of Urban and Environmental Studies2017,5,4: | 0 |
| 8 | A throughput aware with collision-free MAC for wireless LANs显示文摘Dear editor,The Carrier Sense Multiple Access with Collision Avoidance(CSMA/CA)hybrid with the resource reservation approach from Time Division Multiple Address(TDMA)has been emerged as a promising method to solve collision problems in wireless LANs[1–6].In the hybrid method,a TDMA circle contains multiple slots for nodes to contend for the channel.Furthermore,it allows | Tingrui PEI Yafeng DENG Zhetao LI Gengming ZHU Gaofeng PAN Youngjune CHOI Hiroo SEKIYA | 2016 | Science China(Information Sciences)2016,59,2: | 0 |
| 9 | Mechanically induced Cu active sites for selective C–C coupling in CO_(2)electroreduction显示文摘Developing a convenient method to endow bulk Cu-based electrode with high activity of electrocatalytic CO_(2)reduction reaction(CO_(2)RR)to multicarbon(C_(2+))products is desirable but challenging.Herein,for the first time,we report that mechanical polishing induces highly reactive Cu sites for selective C-C coupling in CO_(2)RR.We find that mechanical polishing could endow Cu foil with abundant nanocavity surface structure,which efficiently confines the carbonaceous intermediates to enhance the probability of C-C coupling reaction.By confining the carbonaceous intermediates with Cu nanocavity,the as-prepared electrode delivers a Faradaic efficiency toward C_(2+)products of 65.7%at-1.3 V vs.RHE,which is enhanced up to 1.7 folds compared with that of commercial Cu foil.This work provides a new method to enable Cu foil with high activity of CO_(2)RR to C_(2+)products. | Zhao Chen Yao Song Zhenyu Zhang Yafeng Cai Huan Liu Wenxiang Xie Dehui Deng | 2022 | Journal of Energy Chemistry2022,31,11: | 0 |
| 10 | Generation of irregular particle packing with prescribed statistical distribution, spatial arrangement, and volume fraction显示文摘A method for packing irregular particles with a prescribed volume fraction is proposed.Furthermore,the generated granular material adheres to the prescribed statistical distribution and satisfies the desired complex spatial arrangement.First,the irregular geometries of the realistic particles were obtained from the original particle images.Second,the Minkowski sum was used to check the overlap between irregular particles and place an irregular particle in contact with other particles.Third,the optimised advance front method(OAFM)generated irregular particle packing with the prescribed statistical dis-tribution and volume fraction based on the Minkowski sum.Moreover,the signed distance function was introduced to pack the particles in accordance with the desired spatial arrangement.Finally,seven biaxial tests were performed using the UDEC software,which demonstrated the accuracy and potential usefulness of the proposed method.It can model granular material efficiently and reflect the meso-structural characteristics of complex granular materials.This method has a wide range of applications where discrete modelling of granular media is necessary. | Libing Du Xinrong Liu Yafeng Han Zhiyun Deng | 2023 | Journal of Rock Mechanics and Geotechnical Engineering2023,15,2: | 0 |
| 11 | Observation of resistive switching in a graphite/hexagonal boron nitride/graphite heterostructure memristor显示文摘With the atomically sharp interface and stable switching channel, van der Waals(vdW) heterostructure memristors have attracted extensive interests for the application of high-density memory and neuromorphic computing. Here, we demonstrate a new type of vdW heterostructure memristor device by sandwiching a single-crystalline h-BN layer between two thin graphites. In such a device, a stable bipolar resistive switching(RS) behavior has been observed for the first time. We also characterize their switching performance, and observe an on/off ratio of >10^(3) and a minimum RESET voltage variation coefficient of3.81%. Our work underscores the potential of 2D materials and vdW heterostructures for emerging memory and neuromorphic applications. | Yafeng Deng Yixiang Li Pengfei Wang Shuang Wang Xuan Pan Dong Wang | 2022 | Journal of Semiconductors2022,43,5: | 0 |