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邓石如篆书的碑理隶态
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作者 李云燕 《美术教育研究》 2021年第10期36-37,共2页
明清之际,碑学兴起。邓石如在篆书上一改"二李"书风,不仅打通了学习篆书的艰涩之门,而且开启了篆书的新风尚。尤其是邓石如篆书碑理隶态的书学观念和风格,在一定程度上降低了篆书的书写难度和理解难度,增强了篆书的表现能力... 明清之际,碑学兴起。邓石如在篆书上一改"二李"书风,不仅打通了学习篆书的艰涩之门,而且开启了篆书的新风尚。尤其是邓石如篆书碑理隶态的书学观念和风格,在一定程度上降低了篆书的书写难度和理解难度,增强了篆书的表现能力和形式特征,这对篆书的发展具有重要的促进作用。在碑理隶态的篆书风格下,邓氏书法的追随者众多,形成了煊赫的邓氏书风,掀起了清代篆书的中兴局面。 展开更多
关键词 邓石如 篆书
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论花鸟画写生中的“三态”
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作者 肖立军 《艺海》 2011年第1期69-70,共2页
花鸟画的写生是有计划、有步骤地循序进行的,除了对其浅层次的外部形态结构之"理"的描写之外,还要关注对其本质特征之"神"的表达以及高层审美人格精神之"意"的抒怀。
关键词 花鸟画写生 理态
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Research on Multi-modal In-Vehicle Intelligent Personal Assistant Design
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作者 WANG Jia-rou TANG Cheng-xin SHUAI Liang-ying 《印刷与数字媒体技术研究》 CAS 北大核心 2024年第4期136-146,共11页
Intelligent personal assistants play a pivotal role in in-vehicle systems,significantly enhancing life efficiency,driving safety,and decision-making support.In this study,the multi-modal design elements of intelligent... Intelligent personal assistants play a pivotal role in in-vehicle systems,significantly enhancing life efficiency,driving safety,and decision-making support.In this study,the multi-modal design elements of intelligent personal assistants within the context of visual,auditory,and somatosensory interactions with drivers were discussed.Their impact on the driver’s psychological state through various modes such as visual imagery,voice interaction,and gesture interaction were explored.The study also introduced innovative designs for in-vehicle intelligent personal assistants,incorporating design principles such as driver-centricity,prioritizing passenger safety,and utilizing timely feedback as a criterion.Additionally,the study employed design methods like driver behavior research and driving situation analysis to enhance the emotional connection between drivers and their vehicles,ultimately improving driver satisfaction and trust. 展开更多
关键词 Intelligent personal assistants Multi-modal design User psychology In-vehicle interaction Voice interaction Emotional design
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Ground response and failure mechanism of gob-side entry by roof cutting with hard main roof
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作者 ZHU Heng-zhong XU Lei WEN Zhi-jie 《Journal of Central South University》 SCIE EI CAS CSCD 2024年第7期2488-2512,共25页
This study is the result of long-term efforts of the authors’team to assess ground response of gob-side entry by roof cutting(GSERC)with hard main roof,aiming at scientific control for GSERC deformation.A comprehensi... This study is the result of long-term efforts of the authors’team to assess ground response of gob-side entry by roof cutting(GSERC)with hard main roof,aiming at scientific control for GSERC deformation.A comprehensive field measurement program was conducted to determine entry deformation,roof fracture zone,and anchor bolt(cable)loading.The results indicate that GSERC deformation presents asymmetric characteristics.The maximum convergence near roof cutting side is 458 mm during the primary use process and 1120 mm during the secondary reuse process.The entry deformation is closely associated with the primary development stage,primary use stage,and secondary reuse stage.The key block movement of roof cutting structure,a complex stress environment,and a mismatch in the supporting design scheme are the failure mechanism of GSERC.A controlling ideology for mining states,including regional and stage divisions,was proposed.Both dynamic and permanent support schemes have been implemented in the field.Engineering practice results indicate that the new support scheme can efficiently ensure long-term entry safety and could be a reliable approach for other engineering practices. 展开更多
关键词 gob-side entry by roof cutting ground response failure mechanism following mining states control hard main roof
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Relationship Between Ecophysiological Features and Grain Yield in Different Soybean Varieties 被引量:13
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作者 朱桂杰 蒋高明 +4 位作者 郝乃斌 刘合芹 孔正红 杜维广 满为群 《Acta Botanica Sinica》 CSCD 2002年第6期725-730,共6页
Photosynthetic rate ( P n ), transpiration rate ( E ), stomatal conductance ( g s ), water use efficiency ( WUE ), intercellular CO 2( C i ) and leaf water potential ( Ψ ) in varieties of soybean ( G... Photosynthetic rate ( P n ), transpiration rate ( E ), stomatal conductance ( g s ), water use efficiency ( WUE ), intercellular CO 2( C i ) and leaf water potential ( Ψ ) in varieties of soybean ( Glycine max (L.) Merr.) measured in the past three decades (1970s, 1980s and 1990s) and their inter_relationships were analyzed. These parameters of soybean changed with development stages. It is shown that there was a strongly positive relationship between the yield of soybean and its net photosynthetic rate. Soybean varieties with high yield potential had higher P n , g s and Ψ than those with low yield potential. Their values of C i were remarkably lower. Such relationship was especially remarkable at the critical stage of pod_bearing. P n of soybean of high yield was obviously higher than that of low yield. Of the different stages, the highest P n was found in the pod_bearing stage and other values were higher, too. P n and Ψ of modern soybean varieties were higher and such was continuing. Increased partitioning of carbon to seed and the size of sink may also be important for yield formation when P n values were remarkably higher in the pod_bearing stage. 展开更多
关键词 SOYBEAN ecophysiological characteristics photosynthetic rate stomatal conductance water potential
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Constructing Marine Ecological Civilization of Qingdao 被引量:3
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作者 孙云潭 于晓 《Marine Science Bulletin》 CAS 2010年第1期89-96,共8页
Ocean is a distinctive and prior resource in Qingdao. This paper makes summary and analysis of the practice of constructing marine ecological civilization in Qingdao and offers suggestions for the future development o... Ocean is a distinctive and prior resource in Qingdao. This paper makes summary and analysis of the practice of constructing marine ecological civilization in Qingdao and offers suggestions for the future development of the city. With the implementation of the city's strategy of =Protecting the bay and developing the city on the bay", the suggestions focus on between management & utilization, so as to establish the harmony between the optimal utilization of madne resource and marine ecological environment protection, and to consistently promote marine ecological civilization 展开更多
关键词 marine management ecological civilization suggestions
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Study of the Short-time Eco-physiological Response of Plant Leaves to Dust 被引量:20
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作者 陈雄文 《Acta Botanica Sinica》 CSCD 2001年第10期1058-1064,共7页
The short-time eco-physiological response to dust was measured for the leaves of 22 local popular plant species including roadside trees, fruit trees, forest trees and crop species in Beijing. The dust did affect the ... The short-time eco-physiological response to dust was measured for the leaves of 22 local popular plant species including roadside trees, fruit trees, forest trees and crop species in Beijing. The dust did affect the eco-physiology of leaves of these species. After being covered by dust the instant net photosynthetic rates of most plant species changed insignificantly, but it decreased by more than 35% for 5 species, and it increased by-more than 57% for Ginkgo biloba L. The respiration rates of 12 plant species increased significantly, but it decreased significantly for Malus pumila Mill. (M. communis D C.) and Cotinus coggygria (L.) Scop., and it changed insignificantly for the other 8 species. The transpiration rates of 5 plant species increased significantly, however, they decreased for 9 species, and changed insignificantly for the other 8 species. Platanus occidentalis L. had highest dust carrying capacity. After 2 h the physiological indices did not change significantly for Diospyros kaki L. f., G. biloba and Populus tomentosa Carr. The implications of the research are that Ulmus laevis Pall., M. pumila (M. communis), D. kaki and G. biloba are suitable for amelioration of dust storm damage and increase in local economical development near the sources of dust storms in western China. And in the cities, such as Beijing and other dust areas, the plants have high dust-carrying capacity can be planted for air cleaning. 展开更多
关键词 LEAVES eco-physiological response DUST
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Morphological and Physiological Differences in the Floral Organs of Hosui Pear(Pyrus pyrifolia Nakai) between Normal and Returning Bloom during Late Autumn 被引量:1
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作者 张全军 钟必凤 +2 位作者 李文贵 邓家林 王建辉 《Agricultural Science & Technology》 CAS 2016年第1期15-18,共4页
[Objective] This study was conducted to investigate the morphological and physiological differences between the flowers opening spring and late autumn of Hosui Asian pear(Pyrus pyrifolia Nakai). [Method] Pear flower... [Objective] This study was conducted to investigate the morphological and physiological differences between the flowers opening spring and late autumn of Hosui Asian pear(Pyrus pyrifolia Nakai). [Method] Pear flowers were collected from normal bloom(NB) and returning bloom periods during late autumn in 2011-2013,respectively. The morphological and physiological indices including pollen number,germination rate, petal length, soluble protein content, soluble sugar content, amino acid content, pollen tube growth, fruiting characteristics of NB and RB flowers were detected and compared. [Result] The filament length and petal area of RB flowers were significantly smaller than those of NB flowers. The contents of soluble proteins, soluble sugars and amino acids of RB pollens were significantly smaller than those of NB flowers. In addition, the abortion rate of RB flowers was higher than that of NB flowers. [Conclusion] RB flowers had complete floral organs and were capable of pollination, but they were different from NB flowers in some morphological and physiological indices. 展开更多
关键词 Bud break Floral organ MORPHOLOGY PHYSIOLOGY
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Characterization of discontinuous yielding phenomenon in isothermal compression of TC8 titanium alloy 被引量:3
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作者 王柯 李淼泉 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2016年第6期1583-1588,共6页
The discontinuous yielding phenomenon (DYP) during high temperature deformation was investigated based on the isothermal compression of TC8 titanium alloy. The DYP of TC8 titanium alloy was characterized by quan... The discontinuous yielding phenomenon (DYP) during high temperature deformation was investigated based on the isothermal compression of TC8 titanium alloy. The DYP of TC8 titanium alloy was characterized by quantifying the yield drop of the DYP (△σUL) and ending strain of flow oscillation (εOSC) based on the flow stress?strain curves, and then the effect of deformation parameters on the △σUL and εOSC values was analyzed. The results show that the △σUL and εOSC values increase with the increase of strain rate. The effect of deformation temperature on the ?σUL value depends on the strain rate. Finally, the transmission electron microscope (TEM) observation shows the evidence for the dynamic theory, which ascribes the DYP to the generation of mobile dislocation at the grain boundary. Meanwhile, the optical microscope (OM) observation shows that both the primary α grain and β grain become smaller with the increase of strain, which well interprets the effect of deformation parameters on the △σUL and εOSC values. 展开更多
关键词 titanium alloy flow stress discontinuous yielding dynamic theory
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Effect of Sound Stimulation on the Lipid Physical States and Metabolism of Plasma Membrane from Chrysanthemum Callus 被引量:1
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作者 赵虎成 王伯初 +1 位作者 蔡绍皙 席葆树 《Acta Botanica Sinica》 CSCD 2002年第7期799-803,共5页
Plasma membrane vesicles of chrysanthemum ( Dendranthema morifolium (Ramat.) Tzvel.) callus was purified by sucrose gradient centrifugation to investigate the influence of sound stimulation on the lipid physical st... Plasma membrane vesicles of chrysanthemum ( Dendranthema morifolium (Ramat.) Tzvel.) callus was purified by sucrose gradient centrifugation to investigate the influence of sound stimulation on the lipid physical states and metabolism of plasma membrane. The results showed that sound stimulation decreased the content of phosphodiesters and the fluorescent intensity of DPH, but increased the light scattering value of the membrane, the fluorescent intensity of MC540 and the content of phosphomonoesters, indicating that the vesicles got looser, the charge density and hydrophobicity of membrane surface decreased under sound stimulation of some strength and frequency. However, the membrane fluidity increased under the condition. Meanwhile, the anabolism of membrane lipid increased and the catabolism decreased. It can be seen that the physical state and metabolism of membrane lipid is sensitive to sound stimulation. 展开更多
关键词 chrysanthemum ( Dendranthema morifolium ) callus plasma membrane sound stimulation
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Si phase morphology and mechanical properties of ZL107 Al alloy improved by La modification and heat treatment 被引量:4
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作者 万迪庆 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第5期1051-1054,共4页
The phase morphology evolution during the solid solution treatment and then artificial aging of the La-modified ZL107 Al alloy was studied. The results show that when the solid solution was held at 560 ℃ for 6 h, onl... The phase morphology evolution during the solid solution treatment and then artificial aging of the La-modified ZL107 Al alloy was studied. The results show that when the solid solution was held at 560 ℃ for 6 h, only partial Si phase dissolved into the matrix; however, the precipitation also occurred during the artificial aging process. The precipitation process in Al-Si alloys with or without La-modification was compared. After modification and heat treatment, the mechanical properties of the alloy were greatly enhanced, due to the modification and uniform distribution of Si phase. 展开更多
关键词 ZL107 aluminum alloys MODIFICATION heat treatment microstructure evolution mechanical properties
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Deformation mechanism and softening effect of extruded AZ31 magnesium alloy sheet at moderate temperatures 被引量:7
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作者 刘俊伟 陈振华 +1 位作者 陈鼎 李贵发 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第6期1329-1335,共7页
The flow stress behavior of extruded AZ31 magnesium alloy sheet was investigated by means of compression tests at temperatures between 473 and 523 K and strain rates ranging from 0.001 to 1.0 s-1. The deformation acti... The flow stress behavior of extruded AZ31 magnesium alloy sheet was investigated by means of compression tests at temperatures between 473 and 523 K and strain rates ranging from 0.001 to 1.0 s-1. The deformation activation energy of the sheet in extrusion direction (ED) was calculated, and the relationship between the softening effect and deformation mechanism was elucidated by optical microscopy and transmission electron microscopy. The results show that when the extruded AZ31 magnesium alloy samples were compressed at moderate temperatures in ED direction, the deformation activation energy is 174.18 kJ/mol, which means that dynamic recrystallization (DRX) is the main softening effect and is controlled by cross slip of thermal active dislocation. Dislocation slip is the main deformation mechanism in moderate-temperature deformation process except twinning. The main DRX effect at moderate temperatures can be considered to be continuous dynamic recrystallization accommodated with twinning DRX. 展开更多
关键词 AZ31 magnesium alloy deformation mechanism active energy dynamic recrystallization
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Physiological Adaptation of Habitat by Ion Distribution in the Leaves of Four Ecotypes of Reed (Phragmites australis) 被引量:9
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作者 郑文菊 陈国仓 +3 位作者 张承烈 胡玉熹 李凌浩 林金星 《Acta Botanica Sinica》 CSCD 2002年第1期82-87,共6页
The ion levels in the epidermal bulliform cells of epidermis, mesophyll cells and cells of the vascular bundle sheath of four ecotypes of reed (Phragmites australis (Cav.) Trin. ex Steud.) were determined by means of ... The ion levels in the epidermal bulliform cells of epidermis, mesophyll cells and cells of the vascular bundle sheath of four ecotypes of reed (Phragmites australis (Cav.) Trin. ex Steud.) were determined by means of X_ray microanalysis. The results indicated that higher K +, Na +, Ca 2+ , Mg 2+ and Cl - were distributed in the vascular bundle sheath cells than in mesophyll cells and epidermal bulliform cells of the swamp ecotype. Higher Ca 2+ was found in the bulliform cells than in mesophyll cells and vascular bundle sheath cells, higher Mg 2+ in the mesophyll cells and higher K +, Na + and Cl - in the vascular bundle sheath cells of the dune ecotype. Higher Na + and Mg 2+ was determined in the mesophyll cells than in the bulliform cells and vascular bundle sheath cells, and higher K +, Ca 2+ and Cl - in the vascular bundle sheath cells of the light salt meadow ecotype. In the heavy salt meadow ecotype, higher Na + and Mg 2+ were accumulated in the bulliform cells than in mesophyll cells and vascular bundle sheath cells, but higher K +, Ca 2+ and Cl - in the mesophyll cells. Furthermore, the distributional conditions of the above five ions in leaf cells of the four ecotypes and their significance in the physiological adaptation of reed to habitat were discussed in detail. 展开更多
关键词 reed ( Phragmites australis ) ion distribution physiological adaptation ECOTYPES X_ray micro_analysis
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Analysis of the Elastic-Plastic Dynamic Finite Element on a Jointed Rock Mass 被引量:1
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作者 郭文章 冯顺山 王海福 《Journal of Beijing Institute of Technology》 EI CAS 1999年第2期27-32,共6页
Aim To study the elastic plastic dynamical constitutive relations about a jointed rock mass under explosion load and its computer simulation. Methods\ Stress history is taken into account and stresses will follow ch... Aim To study the elastic plastic dynamical constitutive relations about a jointed rock mass under explosion load and its computer simulation. Methods\ Stress history is taken into account and stresses will follow changes in time during a period of explosion load. According to the principle of static force balance, the corresponding nodal concentrated force is calculated and the nodal displacement is counted. The elastic plastic dynamic finite element equations are thus obtained. Results\ A finite element method is given for a jointed rock mass under explosion load. Conclusion\ The problem of large plastic deformation for jointed rock mass on blasting was efficiently resolved through dynamic finite element analysis and the range of damages by blasting simulated, and this pushes forward the problem to engineering practice. 展开更多
关键词 jointed rock mass dynamic finite element numerical simulation
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Comprehensive Analysis of the Ecological Treatment of Scattered Domestic Wastewater in China 被引量:1
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作者 黄琳丽 潘晶 +1 位作者 孙铁珩 李海波 《Agricultural Science & Technology》 CAS 2011年第10期1552-1555,1560,共5页
The concept,merits and domestic project examples of ecological disposal technique of dispersal sewage were introduced in detail.It was pointed out that the ecological disposal of dispersal sewage was investment-saved,... The concept,merits and domestic project examples of ecological disposal technique of dispersal sewage were introduced in detail.It was pointed out that the ecological disposal of dispersal sewage was investment-saved,energy consumption-reduced and ecological balance-protected advanced technology.This technology was suitable for small community,dispersal units and agencies,villages and other regions without pipe network pervaded and an available approach for solving present environment-protection problems and keeping sustainable development in China. 展开更多
关键词 Dispersal sewage Ecological disposal Sustainable development
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Cluster Analysis of Morphologic Characteristic of Eight Geographical Populations of Rana Dybowskii 被引量:1
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作者 应璐 徐艳春 +2 位作者 黄孝明 田秀华 汪青雄 《Agricultural Science & Technology》 CAS 2008年第1期104-106,110,共4页
[ObJective] The research aimed to determine the geographic distribution map of system of Rana dybowskii. [Method] Four morphologic indices (body length, body weight, forelimb length, hindlimb length) of eight geogra... [ObJective] The research aimed to determine the geographic distribution map of system of Rana dybowskii. [Method] Four morphologic indices (body length, body weight, forelimb length, hindlimb length) of eight geographical populations of R.dybowskii which naturally distribute in Changhai Mountain and Xiaoxing'an Mountain were measured. Measure results were variance analyzed and cluster analyzed. [Result] Variance analysis showed: the genetic branching among the Dongfanghong male population( belongs to Wandashan) and Xiaoxing'an Mountain male population and Changbai Mountain male population were significantly different (P〈0.05) ; the genetic branching between the Hebei female population (belongs to Xiaoxing'an Mountain) and Changbai Mountain female population was significantly different (P〈0.05 ). Cluster analysis showed : male R.dybowskii can be divided into three groups : the first group included Quanyang, Tianbei, Chaoyang and Ddkouqin, the second group included Tieli and Anshan, the third group included Dongfanghong; and the female R. dybowskii can be divided into three groups : the first group included Quanyang and Chaoyang, the second group included Tianbei and Dakouqin, the third group included Hebei. [Condusion] The paper deduced that the Sanjiang Plain was the geographical origin center ofR. dybowskii which radiated to Changbai Mountain and Xiaoxing'an Mountain along the adverse current of Songhua River basin, therefore, the current distribution pattern of R. dybowskii was formed. 展开更多
关键词 Rana dybowskii Geographical population Morphologic characteristic Distribution pattern Geographical origin Cluster analysis
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Comparison of mechanical properties in high temperature and thermal treatment granite 被引量:20
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作者 尹土兵 舒荣华 +2 位作者 李夕兵 王品 刘希灵 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2016年第7期1926-1937,共12页
Static mechanical experiments were carried out on granite after and under different temperatures using an electro-hydraulic and servo-controlled material testing machine with a heating device. Variations in obvious fo... Static mechanical experiments were carried out on granite after and under different temperatures using an electro-hydraulic and servo-controlled material testing machine with a heating device. Variations in obvious form, stress-strain curve, peak strength, peak strain and elastic modulus with temperature were analyzed and the essence of rock failure modes was explored. The results indicate that, compared with granite after the high temperature treatment, the brittle-ductile transition critical temperature is lower, the densification stage is longer, the elastic modulus is smaller and the damage is larger under high temperature. In addition, the peak stress is lower and the peak strain is greater, but both of them change more obviously with the increase of temperature compared with that of granite after the high temperature treatment. Furthermore, the failure modes of granite after the high temperature treatment and under high temperature show a remarkable difference. Below 100 ℃, the failure modes of granite under both conditions are the same, presenting splitting failure. However, after 100 ℃, the failure modes of granite after the high temperature treatment and under high temperature present splitting failure and shear failure, respectively. 展开更多
关键词 GRANITE thermal treatment high temperature effect static mechanical properties failure properties
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Appropriate Garden Design of Primitive Ecology Based on the Indigenization of Environmental Ethics 被引量:1
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作者 章晓岗 王长富 《Journal of Landscape Research》 2010年第2期29-32,95,共5页
The accelerating urbanization process leads to aggravated environmental problems, thus garden design which is a creative activity connecting human and nature has attracted much attention, and also garden designers hav... The accelerating urbanization process leads to aggravated environmental problems, thus garden design which is a creative activity connecting human and nature has attracted much attention, and also garden designers have had to rethink about environmental ethics and morals. This study, from the perspective of environmental ethics, duly proposed the brand-new concept of 'appropriate garden of primitive ecology', proceeded from the orientation, form, value, theoretical basis, realistic significance, culture and consumption psychology of 'garden of primitive ecology', fully developed outstanding ecological wisdoms and morals in traditional Chinese garden culture, boosted garden designs to the environmental ethics level of eco-justice, to seek for the approach to 'garden of primitive ecology' with indigenous Chinese environmental ethic characteristics. 展开更多
关键词 Environmental ethics Garden of primitive ecology Appropriate design INDIGENIZATION Eco-justice
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Prospects for Study on High-yielding Cultivation Techniques of Super Hybrid Rice
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作者 刘科 何爱斌 +2 位作者 卢碧林 田小海 张运波 《Agricultural Science & Technology》 CAS 2015年第4期705-708,共4页
Great progresses have been made in super hybrid rice in China. From the perspectives of dry matter production, nutrient absorption, sink and source, pho-tosynthesis, graln fiI ing and roots, the eco-physioIogical char... Great progresses have been made in super hybrid rice in China. From the perspectives of dry matter production, nutrient absorption, sink and source, pho-tosynthesis, graln fiI ing and roots, the eco-physioIogical characteristics and high-yielding cuItivation techniques of super hybrid rice in China were discussed. In addi-tion, the probIems that restricted the high and stabIe yielding of super hybrid rice were analyzed, and the deveIopment directions of high-yielding cuItivation techniques for super hybrid rice were also discussed. 展开更多
关键词 Super hybrid rice Eco-physlology High yleld Cultivatlon
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Microstructural evolution of AZ61 magnesium alloy predeformed by ECAE during semisolid isothermal treatment 被引量:11
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作者 姜巨福 林鑫 +2 位作者 王迎 曲建俊 罗守靖 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2012年第3期555-563,共9页
The microstructural evolution of AZ61 magnesium alloy predeformed by equal channel angular extrusion(ECAE) during semisolid isothermal treatment(SSIT) was investigated by means of optical metalloscopy and image an... The microstructural evolution of AZ61 magnesium alloy predeformed by equal channel angular extrusion(ECAE) during semisolid isothermal treatment(SSIT) was investigated by means of optical metalloscopy and image analysis equipment.The process involved application of ECAE to as-cast alloy at 310 ℃ to induce strain prior to heating in the semisolid region for different time lengths.The results show that extrusion pass,isothermal temperature and processing route have an influence on microstructural evolution of predeformed AZ61 magnesium alloy during SSIT.With the increase of extrusion pass,the solid particle size is reduced gradually.When isothermal temperature increases from 530 ℃ to 560 ℃,the average particle size increases from 22 μm to 35 μm.When isothermal temperature is 575 ℃,the average particle size decreases.The particle size of microstructure of AZ61 magnesium alloy predeformed by ECAE at BC during SSIT is the finest. 展开更多
关键词 AZ61 magnesium alloy semisolid isothermal treatment equal channel angular extrusion microstructural evolution
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