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世界第二座智能化机床工厂在中国诞生——宁夏小巨人机床有限公司本土化模式探寻(三)
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《电气时代》 2001年第3期55-56,共2页
世界智能化机床工厂的面世是在1998年,这一年山崎马扎克公司在日本名古屋建成了世界第一座智能化机床工厂——日本大口工厂。它的诞生对世界制造业来说是个奇迹,同时也是一次革命。在马扎克公司之前,世界上还没有一家机床制造商拥有这... 世界智能化机床工厂的面世是在1998年,这一年山崎马扎克公司在日本名古屋建成了世界第一座智能化机床工厂——日本大口工厂。它的诞生对世界制造业来说是个奇迹,同时也是一次革命。在马扎克公司之前,世界上还没有一家机床制造商拥有这种全新的智能化企业。然而1999年5月28日,中国土地上一家与大口工厂比肩的智能化工厂破土动工,不到一年建成投产,这就是宁夏小巨人机床有限公司。 展开更多
关键词 智能机床工厂 激光切割 计算机控制 土化模式
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Geo-information Tupu Analysis of Land Use Change in Haihe River Basin 被引量:2
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作者 朱占永 郭伟志 张海力 《Agricultural Science & Technology》 CAS 2012年第5期1139-1144,共6页
[Objective] This study was to provide basis for the scientific management of land use in Haihe River Basin (HRB) through the quantitative exploration of the land use conversion, changes of intensity and spatial dist... [Objective] This study was to provide basis for the scientific management of land use in Haihe River Basin (HRB) through the quantitative exploration of the land use conversion, changes of intensity and spatial distribution in this region. [Method] With the support of remote sensing technology and geographic information technology, the land use maps of the study area in 40 years (1970-2010) were in- terpreted and plotted. Four kinds of tupu, namely, land use change tupu, process tupu, arising tupu and evolution mode tupu were built through the spatial overlay of the land use maps to analyze the change rules of land use patterns. [Result] The conversion of arable land to construction land was the main characteristics of land use changes in HRB for the 40 years; the area of non-stable region accounted for 35% of the total, indicating that the land use changed remarkably, thus, it was nec- essary to strengthen the scientific land management in HRB; the new conversions to all land use patterns were all the lowest in 1980-1990, indicating that land use changed slowly during this period. [Conclusion] The results indicate that, compared with conventional transfer matrix method, geo-information tupu has obvious advantage in analyzing land use changes that it can demonstrate the spatial distribution of interest region, display the multi-dimensional spatial information. 展开更多
关键词 Haihe river basin Tupu analysis Land use change Evolution mode
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Land use optimization for sustainable development of mountain regions of western Serbia 被引量:1
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作者 Tijana VULEVIC Mirjana TODOSIJEVIC +1 位作者 Nada DRAGOVIC Miodrag ZLATIC 《Journal of Mountain Science》 SCIE CSCD 2018年第7期1471-1480,共10页
This study analyses the possibilities for optimal land use structure in mountainous areas of rural Serbia, which is faced with problems such as unfavorable terrain characteristics and inadequate land use patterns caus... This study analyses the possibilities for optimal land use structure in mountainous areas of rural Serbia, which is faced with problems such as unfavorable terrain characteristics and inadequate land use patterns causing economic underdevelopment and increasing population migration. In the case of a small privately owned farm in Western Serbia, optimal land use pattern is determined using the linear programming model. The objective function-cost-effectiveness or soil erosion reduction, as well as constraints, are formulated using the benefit-cost ratio(BCR) for a 15-year production period and soil losses data calculated using the Universal Soil Loss Equation(USLE). The best results are achieved using the scenario with the aim to minimize soil erosion, considering the BCR in the constraints. This scenario is proposed since it was registered that the benefit for landowners would increase by five times, while the losses of land would decline about 80%. The sensitivity analysis of investments is performed to check whether the price variation affects the cost-effectiveness of proposed land use. Results show that market changes(nine cases are considered) do not lead to significant changes in land use allocation. Proposed land use pattern improves the environmental condition, strengthens the rural economy and thus offers the greatest potential for sustainable development of mountainous rural areas. 展开更多
关键词 Cost-benefit analysis Linear programming Land use optimization Mountain region Soil erosion
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Eco-economic control mode and benefit analysis of rock desertification region in Huajiang Karst Valley of Guizhou Province 被引量:2
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作者 Su Weici He Tairong Teng Jianzhen 《Ecological Economy》 2006年第3期289-297,共9页
It is difficult to afforest in rock desertification region and is the key area for eco-environment treatment. To speed up the comprehensive treatment of rock desertification, several anti-rock desertification modes im... It is difficult to afforest in rock desertification region and is the key area for eco-environment treatment. To speed up the comprehensive treatment of rock desertification, several anti-rock desertification modes implemented in Dingtan region, located on the right bank of Huajiang Grand Valley in Beipanjiang Town, are introduced as examples. This paper first analyzes the natural and environmental conditions, the development of rock desertification in the Dingtan region, then the detail of the treatment modes, such as “Chinese wingleaf pricklyash – pig breeding – marsh gas” (Mode One), “amomum villosum – pig breeding – marsh gas” mode (Mode Two), “traditional grain and economic crop (corn, peanut) – amomum villosum or Chinese wingleaf pricklyash” (Mode Three), etc. The eco-economic effects, potential and shortcomings of the above mentioned modes are analyzed and compared. It is proved that Mode One and Mode Two are of good economic effect, but Mode Three of better ecological effect. Solutions to the shortcomings of the modes are also put forward. 展开更多
关键词 Rock desertification Eco-economic control modes Benefit analysis Huajiang Karst Grand Valley Guizhou Province
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Efects of Cropland Cover Changes on Regional Climate over Western China Based on Simulations with RegCM3 被引量:2
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作者 SHI Xue-Li HE Hui-Juan REN Hong-Chang 《Advances in Climate Change Research》 SCIE 2013年第4期250-259,共10页
The impacts of land cover changes on regional climate with RegCM3. Sensitivity experiments were conducted by in Shaan-Gan-Ning (SGN) in western China were simulated replacing crop grids with different new land cover... The impacts of land cover changes on regional climate with RegCM3. Sensitivity experiments were conducted by in Shaan-Gan-Ning (SGN) in western China were simulated replacing crop grids with different new land cover types in the key area of SGN, where the returning cropland to tree/grass project has been carried out since 1999. The modified new land cover types include desert, forest, shrub and grass. They represent degraded, improved, and maintained vegetation cover with natural canopy in the key area. Results from three individual case studies show that the land cover change causes changes in temperature and terrestrial water variables especially within the key area, while changes in precipitation are found for a larger area. The strongest changes appear where the cropland is degraded to bare soil, leading to increasing temperature and decreases in rainfall, evaporation and soil water. Opposite changes occur when cropland changed into forests, especially with strong increases in soil water. When cropland changed to grass and shrub land, the climatic changes are closer to those with forest cover. This shows the importance of improving and maintaining the vegetation in SGN for the ecosystem and regional climate. 展开更多
关键词 land cover change REGCM3 regional climate
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Preparation of NaYF4:Yb^3+,Tm^3+@NaGdF4:Ce^3+,Eu3+double-jacket microtubes for dual-mode fluorescent anti-counterfeiting 被引量:3
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作者 Yin CHEN Shao-wen XIE +4 位作者 Chao TONG Hai-hu TAN Li-jian XU Na LI Jian-xiong XU 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2020年第12期3333-3346,共14页
Novel hydrophilic NaYF4:Yb^3+,Tm^3+@NaGdF4:Ce^3+,Eu^3+double-jacket microtubes(DJMTs)with upconversion/downconversion dual-mode luminescence were designed and prepared through epitaxial growth of NaGdF4:Ce^3+,Eu^3+she... Novel hydrophilic NaYF4:Yb^3+,Tm^3+@NaGdF4:Ce^3+,Eu^3+double-jacket microtubes(DJMTs)with upconversion/downconversion dual-mode luminescence were designed and prepared through epitaxial growth of NaGdF4:Ce^3+,Eu^3+shell onto the NaYF4:Yb^3+,Tm^3+microtube via poly(acrylic acid)(PAA)mediated hydrothermal method.It is demonstrated that PAA ligand played an important role in guiding the direct growth of NaGdF4:Ce^3+,Eu^3+shell onto the surface of NaYF4:Yb^3+,Tm^3+parent microtubes.The growth of NaGdF4:Ce^3+,Eu^3+shell experienced a crystal phase transition fromβ-NaGdF4 andβ-NaYF4 mixture toβ-NaYF4@NaGdF4 composite crystal,and morphology evolution from mixture ofβ-NaGdF4:Ce^3+,Eu^3+nanorods andβ-NaYF4:Yb^3+,Tm^3+microtubes to NaYF4:Yb^3+,Tm^3+@NaGdF4:Ce^3+,Eu^3+DJMTs.The formation mechanism of DJMTs was the dissolution−renucleation ofβ-NaGdF4:Ce^3+,Eu^3+nanorods and the growth ofβ-NaGdF4:Ce^3+,Eu^3+shell via the classical Ostwald ripening mechanism.The as-prepared DJMTs could exhibit blue upconversion and red downconversion luminescence,which was further made into environmentally benign luminescent inks for creating highly secured and fluorescent-based anti-counterfeiting patterns via inkjet printing. 展开更多
关键词 lanthanide-doped fluoride core-shell structure dual-mode luminescence inkjet printing anti- counterfeiting
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Community endowment service localization and globalization
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作者 Ju Jing 《International English Education Research》 2015年第5期84-86,共3页
to solve the pension problem brought by the aging and aging, community endowment service as a new endowment mode has become hot spot. Britain, the United States, Japan and other developed countries have formed a disti... to solve the pension problem brought by the aging and aging, community endowment service as a new endowment mode has become hot spot. Britain, the United States, Japan and other developed countries have formed a distinctive pattern of community endowment service. Community endowment service pattern in China is also actively explore, in the process, we accumulated a lot of valuable experience, but also there are quite a lot of problems to be solved. We should be in combination with the actual situation in our country, on the basis of draw lessons from foreign advanced community endowment development practices at the same time, set the global vision, local consciousness, people's standard all organic unification, perfecting endowment service system in our country, to have a more substantial development. 展开更多
关键词 Community endowment LOCALIZATION GLOBALIZATION
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Effects of future land use change on the regional climate in China 被引量:8
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作者 HUA WenJian CHEN HaiShan LI Xing 《Science China Earth Sciences》 SCIE EI CAS CSCD 2015年第10期1840-1848,共9页
Land use and land cover change(LUCC)is one of the important human forcing on climate.However,it is difficult to infer how LUCC will affect climate in the future from the effects of previous LUCC on regional climates i... Land use and land cover change(LUCC)is one of the important human forcing on climate.However,it is difficult to infer how LUCC will affect climate in the future from the effects of previous LUCC on regional climates in the past.Thus,based on the land cover data recommended by the Coupled Model Intercomparison Project Phase 5(CMIP5),a regional climate model(Reg CM4)was used to investigate the climate effects of future land use change over China.Two 15-year simulations(2036–2050),one with the current land use data and the other with future land cover scenario(2050)were conducted.It is noted that future LUCC in China is mainly characterized by the transition from the grassland to the forest.Results suggest that the magnitudes and ranges of the changes in temperature and precipitation caused by future LUCC show evident seasonality,which are more prominent in summer and autumn.Significant response of climate to future LUCC mainly happens in Northeast China,North China,the Hetao Area,Eastern Qinghai-Tibetan Plateau and South China.Further investigation shows that future LUCC can also produce significant impacts on the atmospheric circulation.LUCC results in abnormal southwesterly wind over extensive areas from the Indian peninsula to the coasts of the South China Sea and South China through the Bay of Bengal.Furthermore,Indian tropical southwest monsoons and South Sea southwest monsoons will both be strong,and the abnormal water vapor convergence from the South China Sea and the Indian Ocean will result in more precipitation in South China. 展开更多
关键词 land use change regional climate numerical simulation
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Variations in soil moisture over the ‘Huang-Huai-Hai Plain' in China due to temperature change using the CNOP-P method and outputs from CMIP5 被引量:1
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作者 SUN GuoDong PENG Fei MU Mu 《Science China Earth Sciences》 SCIE EI CAS CSCD 2017年第10期1838-1853,共16页
In this study, the variations in surface soil liquid water(SSLW) due to future climate change are explored in the‘Huang-Huai-Hai Plain'(‘3H') region in China with the Common Land Model(CoLM). To evaluate the... In this study, the variations in surface soil liquid water(SSLW) due to future climate change are explored in the‘Huang-Huai-Hai Plain'(‘3H') region in China with the Common Land Model(CoLM). To evaluate the possible maximum response of SSLW to climate change, the combination of the conditional nonlinear optimal perturbation related to the parameter(CNOP-P) approach and projections from 10 general circulation models(GCMs) of the Coupled Model Intercomparison Project5(CMIP5) are used. The CNOP-P-type temperature change scenario, a new type of temperature change scenario, is determined by using the CNOP-P method and constrained by the temperature change projections from the 10 GCMs under a high-emission scenario(the Representative Concentration Pathway 8.5 scenario). Numerical results have shown that the response of SSLW to the CNOP-P-type temperature scenario is stronger than those to the 11 temperature scenarios derived from the 10 GCMs and from their ensemble average in the entire ‘3H' region. In the northern region, SSLW under the CNOP-P-type scenario increases to0.1773 m^3 m^(-3); however, SSLW in the scenarios from the GCMs fluctuates from 0.1671 to 0.1748 m^3 m^(-3). In the southern region,SSLW decreases, and its variation(–0.0070 m^3 m^(-3)) due to the CNOP-P-type scenario is higher than each of the variations(–0.0051 to –0.0026 m^3 m^(-3)) due to the scenarios from the GCMs. 展开更多
关键词 CNOP-P Surface soil liquid water CMIP5 Climate change Seasonal and regional heterogeneity
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Denitrification Rates and Their Controlling Factors in Streams of the Han River Basin with Different Land-Use Patterns 被引量:1
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作者 S.P.JUNG Y.J.KIM H.KANG 《Pedosphere》 SCIE CAS CSCD 2014年第4期516-528,共13页
Land-use patterns can affect various nutrient cycles in stream ecosystems, but little information is available about the effects of urban development on denitrification processes at the watershed scale. In the present... Land-use patterns can affect various nutrient cycles in stream ecosystems, but little information is available about the effects of urban development on denitrification processes at the watershed scale. In the presented study, we investigated the controlling factors of denitrification rates within the streams of the Han River Basin, Korea, with different land-use patterns, in order to enhance the effectiveness of water resource management strategies. Ten watersheds were classified into three land-use patterns (forest, agriculture and urban) using satellite images and geographic information system techniques, and in-situ denitrification rates were determined using an acetylene blocking method. Additionally, sediment samples were collected from each stream to analyze denitrifier communities and abundance using molecular approaches. In-situ denitrification rates were found to be in the order of agricultural streams (289.6 mg N20-N m-2 d-1) 〉 urban streams (157.0 mg N20-N m-2 d-1) 〉 forested streams (41.9 mg N20-N m-2 d-l). In contrast, the average quantity of denitrifying genes was the lowest in the urban streams. Genetic diversity of denitrifying genes was not affected by watershed land-use pattern, but exhibited stream-dependent pattern. More significance factors were involved in denitrification in the sites with higher denitrification rates. Multiple linear regression analysis revealed that clay, dissolved organic carbon and water contents were the main factors controlling denitrification rate in the agricultural streams, while dissolved organic carbon was the main controlling factor in the urban streams. In contrast, temperature appeared to be the main controlling factor in the forested streams. 展开更多
关键词 denitrifier communities denitrifying genes nutrient cycle stream ecosystem
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Modeling the impacts of policy interventions from REDD+ in Southeast Asia: A case study in Indonesia
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作者 LU HeLi LIU GuiFang 《Science China Earth Sciences》 SCIE EI CAS 2014年第10期2374-2385,共12页
Reducing Emissions from Deforestation and Forest Degradation(REDD+) and enhancing "removals of greenhouse gas emissions by forests" in developing countries through positive incentives is regarded as an essen... Reducing Emissions from Deforestation and Forest Degradation(REDD+) and enhancing "removals of greenhouse gas emissions by forests" in developing countries through positive incentives is regarded as an essential component of the post-2012 climate regime for stabilizing greenhouse gas emissions and an important way of engaging developing countries in global mitigation efforts. We aimed to evaluate the potential effectiveness of REDD+ by integrating it into a land use option framework. One of our goals was to develop scenarios for evaluating the impacts of land use changes on carbon and environmental processes. In addition, we aimed to quantify the potential economic benefits to society of compensated reductions and to identify hotspots for applying REDD+. Three land use change scenarios were examined:(I) business as usual(BAU),(II) economic development, and(III) REDD+. A case study in Indonesia was examined using these land use scenarios and policy interventions, evaluating their effects on carbon emissions, socioeconomics, and environmental features of a spatial system using land use models. Significant emissions and water erosion reductions were predicted to be achieved under the REDD+ scenario, due to reduced deforestation of <6% over the next decade; >0.14 Mt CO2 e reduction was predicted relative to the BAU scenario. Furthermore, the spatial land use model indicated that REDD+ payments of forest carbon credits in the compliance market would play a key role in compensating rural communities and plantation companies for their opportunity cost in ending deforestation. This study provides an example of integrating land use modeling with a scenario analysis framework to evaluate plausible future forecasts and to evaluate the potential impacts of REDD+. 展开更多
关键词 deforestation and forest degradation greenhouse gas emissions land use Southeast Asia policy intervention
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