|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Prevalence of fatty liver disease and the economy in China: A systematic review显示文摘AIM: To investigate the relationship between the economy and the adult prevalence of fatty liver disease(FLD) in China's Mainland. METHODS: Literature searches on the Pub Med and Chinese National Knowledge Infrastructure databases were performed to identify eligible studies published before July 2014. Records were limited to crosssectional surveys or baseline surveys of longitudinal studies that reported the adult prevalence of FLD and recruited subjects from the general population or community. The gross domestic product(GDP) per capita was chosen to assess the economic status. Multiple linear regression and Loess regression were chosen to fit the data and calculate the 95%CIs. Fitting and overfitting of the models were considered in choosing the appropriate models. RESULTS: There were 27 population-based surveys from 26 articles included in this study. The pooled mean prevalence of FLD in China was 16.73%(95%CI: 13.92%-19.53%). The prevalence of FLD was correlated with the GDP per capita and survey years in the country(adjusted R2 = 0.8736, P GDP per capita = 0.00426, P years = 0.0000394), as well as in coastal areas(R2 = 0.9196, P GDP per capita = 0.00241, P years = 0.00281). Furthermore, males [19.28%(95%CI: 15.68%-22.88%)] presented a higher prevalence than females [14.1%(95%CI: 11.42%-16.61%), P = 0.0071], especially in coastal areas [21.82(95%CI: 17.94%-25.71%) vs 17.01%(95%CI: 14.30%-19.89%), P = 0.0157]. Finally, the prevalence was predicted to reach 20.21% in 2020, increasing at a rate of 0.594% per year. CONCLUSION: This study reveals a correlation between the economy and the prevalence of FLD in China's Mainland. | Jin-Zhou Zhu Qin-Yi Zhou Yu-Ming Wang Yi-Ning Dai Jiang Zhu Chao-Hui Yu You-Ming Li | 2015 | World Journal of Gastroenterology2015，21，18： | 116 |
| 2 | 中国城市绿色发展效率时空演变特征及影响因素显示文摘To resolve conflicts between development and the preservation of the natural environment,enable economic transformation,and achieve the global sustainable development goals(SDGs),green development(GD)is gradually becoming a major strategy in the construction of an ecological civilization and the ideal of building a'beautiful China',alongside the transformation and reconstruction of the global economy.Based on a combination of the concept and implications of GD,we first used the Slacks Based Model with undesirable outputs(SBM-Undesirable),the Theil index,and the spatial Markov chain to measure the spatial patterns,regional differences,and spatio-temporal evolution of urban green development efficiency(UGDE)in China from 2005 to 2015.Second,by coupling natural and human factors,the mechanism influencing UGDE was quantitatively investigated under the framework of the human-environment interaction.The results showed that:(1)from 2005 to 2015,the UGDE increased from 0.475 to 0.523,i.e.,an overall increase of 10%.In terms of temporal variation,there was a staged increase,with its evolution having the characteristics of a'W-shaped'pattern.(2)The regional differences in UGDE followed a pattern of eastern>central>western.For different types of urban agglomeration,the UGDE had inverted pyramid cluster growth characteristics that followed a pattern of'national level>regional level>local level',forming a stable hierarchical scale structure of'super cities>mega cities>big cities>medium cities>small cities'.(3)UGDE in China has developed with significant spatial agglomeration characteristics.High-efficiency type cities have positive spillover effects,while low-efficiency cities have negative effects.Different types of urban evolution processes have a path dependence,and a spatial club convergence phenomenon exists,in which areas with high UGDE are concentrated and drive low UGDE elsewhere.(4)Under the framework of regional human-environment interaction,the degree of human and social influence on UGDE is greater than that of the natural background.The economic strength,industrial structure,openness,and climate conditions of China have positively promoted UGDE. | 周亮 周成虎 车磊 王宝 | 2020 | Journal of Geographical Sciences2020，30，5： | 11 |
| 3 | Characteristics of MOF, MWCNT and graphene containing materials for hydrogen storage: A review显示文摘Hydrogen is a generally abundant, safe, clean and environmentally apt alternative fuel, which replenishes the void generated by depleting fossil fuel reserves. The adoption of hydrogen as an energy source has been restricted to low levels due to the complications associated with its viable storage and usage. Existing technologies, such as storage of hydrogen in compressed and liquefied forms are not adequate to meet the broad on-board applications. The gravimetric energy density(120 MJ/kg) of hydrogen is three times higher than that of gasoline products, so solid-state hydrogen storage is advantageous.Metal-organic frameworks(MOFs), multi-walled carbon nanotubes(MWCNTs) and graphene are solid adsorbents majorly employed for efficient H_2 storage. The prominent features of MOFs such as permanent porosity, structural rigidity, and surface area are attractive and ideal for hydrogen storage. In addition,nanostructured carbon materials(MWCNTs and graphene) and their composites have demonstrated significant hydrogen storage capacities. Some important parameters for the success of the hydrogen economy include high storage density, adsorption/desorption temperature and cycling time. Cryo-hydrogen storage was achieved in MOFs and their composites with carbon structures, but storage at ambient temperature and acceptable pressures is a major hurdle. This review discusses various strategies and mechanisms in the design of adsorbents explored to improve H_2 storage capacities and afford opportunities to develop new sustainable hydrogen technologies to meet energy targets. | Kranthi Kumar Gangu Suresh Maddila Saratchandra Babu Mukkamala Sreekantha B Jonnalagadda | 2019 | Journal of Energy Chemistry2019，28，3： | 10 |
| 4 | Topographical relief characteristics and its impact on population and economy:A case study of the mountainous area in western Henan,China显示文摘Topographical relief is a key factor that limits population distribution and economic development in mountainous areas.The limitation is especially apparent in the mountain?plain t「ansition zone.Taking the transition zone between the Qinling Mountains and the North China Plain(i.e.the mountainous area in western Henan Province)as an example and based on the 200-m resolution DEM data,we used the mean change-point analysis to determine the optimal statistical unit for topographical relief,and thereafter extracted the relief degree.Taking the 1:100,000 land use data,township population and county-level industrial data,population and economic spatial models were constructed,and 200?m resolution grid population and economic density maps were gen erated.Afterwards,statistical analysis was carried out to quantitatively reveal the impact of topographical relief on population and economy.In addition,the impacts of other topographical factors were discussed.The results showed the following.(1)The relief degree in western Henan is generally low,where 58.6%of the regional topography does not exceed half the height of a reference mountain(relative elevation W250 m).Spatially,the relief degree is high in the west while low in the east,and high in the middle while low in the north and south.There is a positive correlation between relief degree and elevation,and a much stronger correlation between relief degree and slope.(2)The linear fitting degree between the population and economic validation data and the corresponding simulation data are 0.943 and 0.909,respectively,indicating that the spatialized results can reflect the actual population and economic distribution.(3)The impact of topographical relief on population and economy was stronger than that of other topographical factors.The relief degree showed a good logarithmic fit relati on ship with population density(0.911)and economic density(0.874).Specifically,88.65%of the population lives in areas where the topographical relief is W0.5 and 88.03%of the gross regional product was from areas where the relief is W0.3.Compared with the population distribution,the economic development showed an obvious agglomeration trend towards low relief areas. | ZHANG Jingjing ZHU Wenbo ZHU Lianqi CUI Yaoping HE Shasha REN Han | 2019 | Journal of Geographical Sciences2019，29，4： | 8 |
| 5 | 社会主义市场经济的数学问题初探——兼论市场经济宏观调控的手段显示文摘本文首先给出计划经济和市场经济相结合的数学模型;然后用线性规划的对偶理论证明其解的存在性和解的可操作性,从而证明了计划经济和市场经济是能够结合的,且给出具体结合的方法;最后还给出模型中若干数量的经济解释。 | 刘家壮 | 1993 | 经济数学1993，0，1： | 8 |
| 6 | Research on Competitiveness of County Economy Based on Factor Analysis and Cluster Analysis——Taking 88 Counties in Guizhou as Samples显示文摘17 indices are selected,such as the growth rate of total regional output value,the proportion of tertiary industry in GDP,per capita financial expenditure,and soil erosion rate of Guizhou Province in 2009.According to the relevant indices data of statistical yearbook and governmental website,by using the method of factor analysis and the method of cluster analysis,we assess the competitiveness of county economy in 88 counties of Guizhou Province.The results show that the competitiveness of county economy in Guizhou Province is impacted by factors of location and economic foundation.In addition,the resources environment,economic structure,economic developmental speed and other factors also impact the competitiveness of county economy in Guizhou Province.Based on these,in the light of the developmental characteristics of different counties in conjunction with different developmental advantages in different regions,we should adopt different developmental strategies according to local conditions,which is significant to rapid,healthy and sustainable development of county economy in Guizhou Province. | HAN De-jun,LU Jing-fang,ZHANG Wen-zhuan Guizhou College of Finance and Economics,Guiyang 550004,China | 2011 | Asian Agricultural Research2011，3，2： | 8 |
| 7 | Economics of energy storage technology in active distribution networks显示文摘An economic and environmental evaluation of active distribution networks containing lithium ion batteries(Li-ion),sodium sulfur batteries(NaS)and vanadium redox flow batteries(VRB)was carried out using the EnergyPLAN software.The prioritization schemes of the combination of energy storage systems and intermittent energy systems were studied technically and economically based on some specific situations of the grid integrated with wind power.The results suggest that the technical and economic optimal intermittent energy-storage capacity ratio was 2:1 in predetermined energy system scenarios.Liion batteries storage system performed the best in critical excess electricity production(CEEP)absorption,energy saving and emission reduction while NaS batteries storage system was the most competitive among the three due to its cheaper costs. | Jiongcong CHEN Xudong SONG | 2015 | Journal of Modern Power Systems and Clean Energy2015，3，4： | 8 |
| 8 | Construction of Eco-tourism Sites Based on the Experience of Eco-tourism显示文摘Taking Lingtong Grand Canyon in Jingxi County, Baise City, Guangxi, China as a research object, the face-to-face questionnaire survey on tourist is carried out, in order to obtain the basic situation of the interviewees, as well as their expectation for the eco-tourism experience. Factor analysis method is adopted to test the interviewees′ expectation of the eco-tourism experience. Result shows that eco-tourism experience of tourist is mainly reflected in the ecological leisure experience, the ecological tourism experience, the ecological experience in scenic spot, and the self-realization experience. Analysis on the recognition of the expectation for eco-tourism experience shows that the interviewees′ expectations of the eco-tourism experience are in the order of the ecological experience in scenic spot, the eco-tourism experience, the ecological leisure experience, and the self-realization experience. Difference analysis on the interviewees′ expectations for the eco-tourism experience is carried out by market segmentation. Result shows that there are significant differences in the demand of eco-tourism experience among different types of tourisms. According to the investigation result, countermeasures for the construction and marketing of eco-tourism sites are put forward. | LU Rui Nanning College for Vocational Technology, Nanning 530003, China | 2010 | Asian Agricultural Research2010，2，9： | 7 |
| 9 | 垄断行业和国有企业改革显示文摘被称为'垄断行业'的电力、电信、铁道、民航、邮政、公用、石油、军工等均为关系国计民生的重要行业和关键领域。30年来,这些行业不同程度地推进了政企分开、引入竞争和国企股份制等改革,促进了发展。上述行业或由于固有的自然垄断性质,或由于其外部性或战略重要性,应该保持国有经济的支配地位,根据行业具体情况决定竞争的程度。深化改革的目标是通过引进竞争和产权多元化,转变机制,增强活力,以增进社会福利和提高国家竞争力,而不是要国有经济退出这些领域。 | 高梁 | 2010 | 政治经济学评论2010，1，3： | 7 |
| 10 | 资金供给、资本非均衡流动与区域经济不平衡发展研究显示文摘资本在区域之间配置的巨大差异,不仅源自各区域内部资本形成的差异,而且源自跨区域资本流动的差异。通过对我国资本流动与区域经济发展的关系进行较为深入的分析。实证分析结果表明:东、中、西部地区的经济发展明显受到资金供给、区间资本流动和外资流入的影响,资金供给对西部地区的影响较东部和中部地区大,而区间资本的流入对中部地区的影响大于对东部和西部地区的影响,外资的流入对西部地区的经济产生显著的正效应,对其影响也明显的高于东部和中部地区,此外在资本已经稀缺的基础上,西部地区资本的外流对西部地区经济发展产生一个显著的负面影响。 | 何雄浪 刘帅 | 2010 | 贵州财经学院学报2010，，6： | 5 |
| 11 | Urban Agricultural Development from the Perspective of Circular Economy——An Analysis of Sino-Singapore Eco-city Model in Tianjin显示文摘The connotation and development of circular economy and circular agriculture are illustrated from the perspective of circular economy.Take the duplicable Sino-Singapore Eco-City in Tianjin as a case to analyze the background,significance and features of building Sino-Singapore Tianjin Eco-City and point out the sustainable developmental orientation of the 'three harmony and three capabilities' as well as its inspiration on the development of Tianjin urban agriculture from the aspects of water-saving,land-saving and energy-saving.Under the direction of circular economy theory,the enhancement of economical utilization of agricultural resources and resource utilization of agricultural wastes has positive effects on improving urban environment:decentralize organic solid wastes from sewage cycle system;further study the physiological and biochemical mechanism of increasing yield and income of ecological agriculture;bring urban agriculture into city land utilization planning and city development planning. | ZHANG Tian-yi,JIN Yan-ping School of Economics and Management,Beijing Forestry University,Beijing 100083,China | 2010 | Asian Agricultural Research2010，2，11： | 5 |
| 12 | Assessment of nomadic rice-duck complex ecosystem on energy and economy显示文摘Introduction:Modern intensive rice production has brought a large amount of environmental pollution and do not guarantee the safety of rice quality.Thus,to improve the farmer's rice production model to reduce agro-chemicals is of great importance to decrease pollution and to guarantee the security of food quality.Here,our experiments illustrated that nomadic rice-duck complex ecosystem(RD)could reduce energy input and increase both energy output and the values of the product safety index based on energy(PSI).Results:According to the results of our experiments,RD and rice monoculture production system(RM)were-0.6 and-0.78,respectively,which indicated that the safety potential of products in RD was higher than that of RM.Protein yield based on RD was significantly higher than that of RM.The output/input,gross income,and net income of RD were 15.26%,39.51%,and 44.80%,respectively,higher than that of RM;the data suggest that the economic benefits of RD were greater than that of RM.Conclusions:Consequently,as an intermediate-type technology,RD could become a feasible alternative that could reduce agro-chemical application rate without decreasing rice yield and increasing labor intensity.Furthermore,as an inheritance and development of the Chinese farming culture,RD is a classic Chinese farming technology withstanding more than 700 years of tests. | Huabin Zheng Huang Huang Diqin Li Xumeng Li Zhiqiang Fu Can Chen | 2014 | Ecological Processes2014，3，1： | 5 |
| 13 | Selection of cost-effective magnesium sources for fluidized struvite crystallization显示文摘Struvite crystallization has been considered a promising approach to recover phosphorus from wastewater. However, its practical application is limited, probably because of the high cost of magnesium(Mg). In this study, a comprehensive economic analysis was conducted using five Mg sources(MgCl_2, MgSO_4, MgO, Mg(OH)_2, and bittern) during the operation of a pilot-scale fluidized bed reactor(FBR), using swine wastewater as the case matrix. First, the economic operating conditions were investigated, and subsequently, the performance and the costs of the five Mg sources were compared. The results indicated that the FBR could be operated most economically at pH of 8.5 and Mg to phosphorus(Mg/P) molar ratio of 1.5. Under these conditions, no significant differences in phosphorus removal and product quality could be found between the five Mg sources. Selecting the most economical Mg source was thus highly dependent on the prices of the reagents and Mg sources. Low-solubility Mg sources were preferable when NaOH was priced higher, while high-solubility Mg sources proved more economical when HNO_3 was expensive. The bittern was the most economical choice only when the distances for total inorganic orthophosphate removal and struvite recovery were shorter than 40 and 270 km, respectively. The current study provides an overview of the economic selection of an Mg source, which can help reduce the cost of struvite crystallization. | Jinsong Wang Xin Ye Zhaoji Zhang Zhi-Long Ye Shaohua Chen | 2018 | Journal of Environmental Sciences2018，30，8： | 5 |
| 14 | Low-carbon economic development in Central Asia based on LMDI decomposition and comparative decoupling analyses显示文摘Low-carbon economic development is a strategy that is emerging in response to global climate change. Being the third-largest energy base in the world, Central Asia should adopt rational and efficient energy utilization to achieve the sustainable economic development. In this study, the logarithmic mean Divisia index(LMDI) decomposition method was used to explore the influence factors of CO2 emissions in Central Asia(including Kazakhstan, Uzbekistan, Kyrgyzstan, Tajikistan and Turkmenistan) during the period 1992–2014. Moreover, decoupling elasticity and decoupling index based on the LMDI decomposition results were employed to explore the relationship between economic growth and CO2 emissions during the study period. Our results show that the total CO2 emissions decreased during the period 1992–1998, influenced by the collapse of the Soviet Union in 1991 and the subsequent financial crisis. After 1998, the total CO2 emissions started to increase slowly along with the economic growth after the market economic reform. Energy-related CO2 emissions increased in Central Asia, mainly driven by economic activity effect and population effect, while energy intensity effect and energy carbon structure effect were the primary factors inhibiting CO2 emissions. The contribution percentages of these four factors(economic activity effect, population effect, energy intensity effect and energy carbon structure effect) to the total CO2 emissions were 11.80%, 39.08%, –44.82% and –4.32%, respectively, during the study period. Kazakhstan, Uzbekistan and Turkmenistan released great quantities of CO2 with the annual average emissions of 189.69×106, 45.55×106 and 115.38×106 t, respectively. In fact, their economic developments depended on high-carbon energies. The decoupling indices clarified the relationship between CO2 emissions and economic growth, highlighting the occurrence of a ’’weak decoupling’’ between these two variables in Central Asia. In conclusion, our results indicate that CO2 emissions are still not completely decoupled from economic growth in Central Asia. Based on these results, we suggest four key policy suggestions in this paper to help Central Asia to reduce CO2 emissions and build a resource-conserving and environment-friendly society. | LI Jiaxiu CHEN Yaning LI Zhi HUANG Xiaotao | 2019 | Journal of Arid Land2019，11，4： | 4 |
| 15 | Car Fuel Economy Simulation Forecast Method Based on CVT Efficiencies Measured from Bench Test显示文摘Researchers face di culties in studying the e ects of driveline e ciency on car fuel economy via bench and road tests because of long working periods, high costs, and heavy workloads. To simplify the study process and shorten test cycles, a car fuel economy simulation forecast method for combining computer simulation forecasting with bench tests is proposed. Taking a continuously variable transmission(CVT) as the research object, a transmission e ?ciency model based on a bench test is constructed. An optimal economic variogram based on the original CVT vari?ogram, the boundary conditions of vehicle performance, the road conditions and the driving behavior of the driver is generated in the Gear Shift Program(GSP)?Generation module in AVL Cruise. And on this basis a driveline simulation model that can calculate the fuel consumption based on the driveline data of a test car is built. The model is used to forecast fuel consumption and calculate real?time CVT e ciency under di erent conditions. Contrastive analyses on simulation results and real car drum test results are made. The largest error between simulation results and drum test results in driving cycles is 4.099%, which is 5.449% under constant velocity condition in driver control mode and 4.2% under constant velocity condition in automatic cruise mode. The results confirm the feasibility of the method and the good performance of the driveline simulation model in accurately forecasting fuel consumption. The method can e ciently investigate the e ects of driveline e ciency on car fuel economy. Moreover, this research provides instruc?tion for accurately forecasting fuel economy as well as references for studies on the e ects of drivelines on car fuel economy. | Yu-Long Lei Yu-Zhe Jia Yao Fu Ke Liu Ying Zhang Zhen-Jie Liu | 2018 | Chinese Journal of Mechanical Engineering2018，31，5： | 4 |
| 16 | 城镇化机制创新与城乡区域经济发展方式转变显示文摘城乡区域发展总体战略是城镇化发展战略在空间的体现,城镇化则是城乡区域经济协调发展及经济结构调整的主角,是从国情出发的内生型现代化发展方式,是实现经济发展方式从生产主导型向消费主导型转变的火车头,是超越政策和体制障碍的根本出路,是我国经济可持续发展的重要动力,是城乡统筹解决社会根本矛盾的的重要途径。城乡区域政策地域框架可分为东、中、西、东北'四大板块'及其功能区和问题区等三个不同层次,统筹并进,各有侧重。应扩大内需,构造城乡居民'均衡共享'发展模式,建立扩大城乡居民消费的政策制度保障机制。 | 周毅 | 2010 | 西北师大学报(社会科学版)2010，47，6： | 4 |
| 17 | 数学中的弹性理论在经济工作中的应用显示文摘本文结合数学中的弹性理论 ,采取定量分析与定性分析相结合的方法 ,从需求的价格弹性、需求的收入弹性、需求的交叉弹性三个方面阐述了该理论在经济工作中的应用 ,从而为政府、企业的经济决策、经营决策提供了依据。掌握、领会弹性理论在目前复杂的经济环境中的应用 ,具有重要的现实意义。 | 侯志宏 | 2000 | 闽江学院学报2000，21，3： | 4 |
| 18 | The Development of Leisure Agriculture Based on Characteristics of Land Resource Utilization显示文摘Based on analysis of geographical and location advantages of Qiaocheng District,we discussed characteristics of land utilization and local industry. In accordance with these characteristics,it is proposed to explore potential of farming land,speed up transfer of farming land in Qiaocheng District,and develop the leisure agriculture. | YANG Li 1 ,YU Zhong-xiang 1 ,MA Wei-peng 2 1. College of Economics and Management,Anhui Agricultural University,Hefei 236800,China 2. School of Earth Science and Resources, Chang’an University,Xi’an 710001,China | 2012 | Asian Agricultural Research2012，4，8： | 4 |
| 19 | Can regional economy influence China's water use intensity?:based on refined LMDI method显示文摘China experienced a decline of water use intensity in the 11th Five Year Plan,but the water use intensity actually increased in 2009.To the best of our knowledge,the index decomposition analysis method was rarely used to analyze changes in water use,and no decomposition analysis has investigated the role of regional economy in the decline of water use intensity.In this paper,we use logarithmic mean Divisia index(LMDI)techniques to decompose the change of water use intensity in the period 2006-2010.We find that the change of industrial water use intensity is confirmed as the dominant contributor to the decline in the overall water use intensity;the regional structure effect and the industrial structure effect is positive to the decline of overall water use intensity;the decline of China's water use intensity is mainly attributed to the effect of developed eastern provinces;meanwhile,the effect of central and undeveloped western is also positive to the decline of overall water use intensity;at least one out of three effects is positive to the decline of water use intensity in the different provinces;the intensity effect is positive and the industrial structure effect is positive to the declines of China's water use intensity based on chaining approach except the period 2008-2009,individually;and the deviation of regional structure effect and industrial structure effect between with regional economy and without regional economy in LMDI is 0.9 and2.3 m^3/10~4 RMB,respectively. | Chenjun Zhang Hengquan Zhang | 2014 | Chinese Journal of Population,Resources and Environment2014，12，3： | 4 |
| 20 | 一项概念史角度的考察:economy汉译名与中国古代经济词汇的对接显示文摘文章以西方经济学概念在近代中国输入、兴起、演变与逐渐本土化的复杂过程为研究背景,从'概念史'视角出发,以economy在严复译本和著述文字中多样的译名呈现为研究语料和对象,在梳理其汉译脉络的基础上,重点探讨economy概念与中国古代旧有经济概念之间的历史渊源,以及译名的选择与淘汰,试图揭示现代经济学概念的生成与演化特点,以及国人对外来知识的历史诠释和重构图景。本文认为,社会的变迁必然在其政治和社会概念上留下语义痕迹,在改变基本价值或实践方式时,也必然改变规范性语汇。对外来概念汉译名的分析必须回到翻译变迁和社会变化所在的文化间和文化内的语境中,突出交流与调适的多层面复杂性。economy的译名'经济'并非一蹴而就,有其独特的形成史。译名'经济'最终取得主导性地位的过程,是其他译名含义的碎片化、整合化、再概念化的历史过程,也是翻译主体、译本生成文化与历史差异的具体呈现,更是民族自觉与适应新的社会体制范式的符号认同的过程。 | 刘瑾玉 | 2019 | 东方翻译2019，0，1： | 3 |
您所在的机构暂未开通此部分的功能，请联系管理员