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个旧—大厂地区地质构造演化及锡多金属成矿 被引量:43
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作者 秦德先 谈树成 +8 位作者 范柱国 黎应书 陈爱兵 李连举 刘光亮 党玉涛 童祥 武俊德 李玉新 《矿物学报》 CAS CSCD 北大核心 2004年第2期117-123,共7页
个旧—大厂锡多金属矿床不是简单的燕山晚期地台环境的"花岗岩岩浆期后气液矿床",矿区地处三大板块的交接部位附近的个旧-大厂锡矿,前泥盆纪区域构造岩浆活动及锡多金属成矿作用强烈,泥盆纪—三叠纪裂谷作用和锡多金属成矿特... 个旧—大厂锡多金属矿床不是简单的燕山晚期地台环境的"花岗岩岩浆期后气液矿床",矿区地处三大板块的交接部位附近的个旧-大厂锡矿,前泥盆纪区域构造岩浆活动及锡多金属成矿作用强烈,泥盆纪—三叠纪裂谷作用和锡多金属成矿特点突出。泥盆纪受北西向同沉积断裂控制,在南丹 河池一带裂谷作用明显,发生了海底喷流成矿,加上印支—燕山期构造岩浆改造,形成了大厂锡矿。三叠纪受北东向个旧—兴义—晴隆同沉积断裂控制,在个旧、兴义一带发生的裂谷作用,伴随基性火山成矿、喷流热水沉积成矿和燕山晚期花岗岩改造(叠加)成矿,从而形成了个旧锡矿。 展开更多
关键词 地质构造演化 锡多金属矿床 成矿作用 地台环境 成矿特点
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Research on Strategy Marine Noise Map Based on i4Ocean Platform: Constructing Flow and Key Approach 被引量:2
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作者 HUANG Baoxiang CHEN Ge +1 位作者 HAN Yong 《Journal of Ocean University of China》 SCIE CAS 2016年第1期117-123,共7页
Noise level in a marine environment has raised extensive concern in the scientific community.The research is carried out on i4 Ocean platform following the process of ocean noise model integrating,noise data extractin... Noise level in a marine environment has raised extensive concern in the scientific community.The research is carried out on i4 Ocean platform following the process of ocean noise model integrating,noise data extracting,processing,visualizing,and interpreting,ocean noise map constructing and publishing.For the convenience of numerical computation,based on the characteristics of ocean noise field,a hybrid model related to spatial locations is suggested in the propagation model.The normal mode method K/I model is used for far field and ray method CANARY model is used for near field.Visualizing marine ambient noise data is critical to understanding and predicting marine noise for relevant decision making.Marine noise map can be constructed on virtual ocean scene.The systematic marine noise visualization framework includes preprocessing,coordinate transformation interpolation,and rendering.The simulation of ocean noise depends on realistic surface.Then the dynamic water simulation gird was improved with GPU fusion to achieve seamless combination with the visualization result of ocean noise.At the same time,the profile and spherical visualization include space,and time dimensionality were also provided for the vertical field characteristics of ocean ambient noise.Finally,marine noise map can be published with grid pre-processing and multistage cache technology to better serve the public. 展开更多
关键词 marine noise map 3D virtual ocean GPU fusion map publishing
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Creating a Geographical Observatory of Atmospheric Pollution (GEOAP) for the Greek Territory
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作者 D. Vagiona N. Karanikolas M. Lazoglou 《Journal of Environmental Science and Engineering》 2010年第7期56-66,共11页
The main purpose of this paper is to analyze the necessity of a Geographical Observatory of Atmospheric Pollution (GEOAP) in the Greek territory. The analysis performed is mainly focused on the benefits of the futur... The main purpose of this paper is to analyze the necessity of a Geographical Observatory of Atmospheric Pollution (GEOAP) in the Greek territory. The analysis performed is mainly focused on the benefits of the future function of the GEOAP to the environmental planning of the country and it could also provide an environmental management tool for the whole region. Measuring and mapping the pollution data and at the same time performing the geographical analysis of the complexity and the characteristics of natural and human environment can be useful tool in observation, management, and planning of the environmental policy of the country. 展开更多
关键词 Atmospheric pollution environmental monitoring geographical analysis.
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Dynamic Target Costing (TC) in Real Estate Development Industry in Taiwan
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作者 Wu Chiling Chen Shumei 《Journal of Modern Accounting and Auditing》 2013年第2期203-211,共9页
This paper discusses whether target costing (TC) is affected by the impacts of external circumstances and appears dynamic in real estate development industry. A case study was conducted and combined with literature ... This paper discusses whether target costing (TC) is affected by the impacts of external circumstances and appears dynamic in real estate development industry. A case study was conducted and combined with literature reviews to test this proposition. The results of this paper show that the formula appears dynamic on the impacts of economic depression/recession, inflation, and change of governmental policy to assist the firms in the achievement of planned profits. TC, as a strategic profit management system in the industry, exhibits brisk utilization in a dynamic formula with more of a focus on value added to maintain fixed profits. It is different from the focus on cost reduction by a static formula in previous literatures. 展开更多
关键词 target costing (TC) real estate development industry top-down method SUBTRACTION DYNAMIC
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Marine Environment around Taiwan Coast
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作者 Ho-Shong Hou 《Journal of Civil Engineering and Architecture》 2016年第11期1297-1303,共7页
Coastal erosion is an island-wide problem in Taiwan; about 80% of the island's sandy coastline had suffered from erosion over the past few decades. Historically, with the specific tectonic environment and rapid uplif... Coastal erosion is an island-wide problem in Taiwan; about 80% of the island's sandy coastline had suffered from erosion over the past few decades. Historically, with the specific tectonic environment and rapid uplifting rate, lots of sediment had been yielded and transported to the coastal area that resulted in an advancing shoreline. Taiwan economically moved from a developing country to a developed one; a lot of human intervention had been made along the island coast. These are the major factors on recent coastal erosion. Even actions such as building of stabilization structures may inadvertently increase erosion. Some intervention examples are chosen to address how human-induced change made the profound impact on coastal erosion in Taiwan. All the information serves to provide a better understanding of the coastal processes, and a better response to the erosion problem. 展开更多
关键词 EROSION SEDIMENT protection construction.
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Rayleigh Wave Group Velocity Maps of East Guangdong and Its Surrounding Regions from Ambient Seismic Noise Tomography
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作者 Huang Yuanmin Shen Yusong Yang Maling 《Earthquake Research in China》 2013年第4期490-500,共11页
We perform Rayleigh wave tomography in east Guangdong and its surrounding regions by applying the ambient noise method to broadband data recorded at 26 stations from Guangdong,Fujian and Jiangxi Digital Seismic Networ... We perform Rayleigh wave tomography in east Guangdong and its surrounding regions by applying the ambient noise method to broadband data recorded at 26 stations from Guangdong,Fujian and Jiangxi Digital Seismic Networks.Cross-correlations of verticalcomponent ambient noise data are computed in one-day segments and stacked over seven months from March to September,2011.Then Rayleigh wave group dispersion curves are measured using the frequency-time analysis method.Group velocity maps at periods from5s to 15s are inverted.The resulting group velocity maps generally show good correlation with tectonic features,reflecting the velocity variations in the shallow crust.The basin areas are clearly resolved with lower group velocities at the short periods due to thick sedimentary layers,and the mountain areas with higher group velocities due to thin sedimentary layers.The variations of group velocity on the map can draw out the distribution of basins and mountains in study areas.The geothermal field can change the group velocity obviously,and lower group velocities are always found in high geothermal areas.The velocity maps indicate that a low-velocity layer may be found in the study areas. 展开更多
关键词 Ambient seismic noise CROSS-CORRELATION Green's function Dispersion curves
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Transforming Greek Epic Iliad into Taiwan Residents Environmental Theater: Golden Bough's Troy, Troy... Taiwan
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作者 Ivy I-chu Chang 《Cultural and Religious Studies》 2017年第2期61-69,共9页
With an analysis on Golden Bough Theater's Troy, Troy... Taiwan, this article will investigate how they de-contextualize Greek Epic Iliad with an eclectic collage of the tropes of Greek epic, the techniques of enviro... With an analysis on Golden Bough Theater's Troy, Troy... Taiwan, this article will investigate how they de-contextualize Greek Epic Iliad with an eclectic collage of the tropes of Greek epic, the techniques of environmental theater and Taiwan Residents local opera, and the aesthetics of Taiwan Residents indigenous rituals and Pili Puppetry. It will discuss how the performers transform Greek epic into a Taiwan Residents allegory in search of Taiwan Residents cultural roots and identities. Furthermore, in the cultural encounter between the East and the West, multiple folds of significance will be explored through their hybridized performance genres and rituals as well as symbolic interaction in various performance venues with different historical and cultural legacies. 展开更多
关键词 TAIWAN RITUAL THEATER GREEK
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Advanced Self-Localization and Navigation for Mobile Robots in Extraterrestrial Environments
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作者 Juergen Rossmann Christian Schlette Markus Emde Bjoern Sondermann 《Computer Technology and Application》 2011年第5期344-353,共10页
Self-localization is one of the most important aspects for using mobile robots in unstructured environments. In this paper, the authors introduce a new approach for a self-localization and navigation unit for mobile p... Self-localization is one of the most important aspects for using mobile robots in unstructured environments. In this paper, the authors introduce a new approach for a self-localization and navigation unit for mobile platforms in extraterrestrial environments, based on the authors" successful results in self-localization of forestry machines on earth. The presented approach is developed from a highly modular concept, which allows a simple but efficient adaption to specific applications by just substituting some scenario dependent components. In this paper, the authors will explain the general concept and the terrestrial implementation so far. On this basis, the authors will demonstrate and discuss the necessary adaptions to the general concept in order to handle the different conditions on extraterrestrial surfaces. 展开更多
关键词 SELF-LOCALIZATION sensor fusion landmark detection forestry environment extraterrestrial environments
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Distinct sedimentary environments and their influences on carbonate reservoir evolution of the Lianglitag Formation in the Tarim Basin,Northwest China 被引量:11
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作者 LIU JiaQing LI Zhong +1 位作者 HUANG JunCou YANG Liu 《Science China Earth Sciences》 SCIE EI CAS 2012年第10期1641-1655,共15页
The Upper Ordovician Lianglitag Formation carbonate rocks are important oil and gas reservoirs in the Tarim Basin, Northwest China, with obviously distinct reservoir properties among different oilfields. As a case are... The Upper Ordovician Lianglitag Formation carbonate rocks are important oil and gas reservoirs in the Tarim Basin, Northwest China, with obviously distinct reservoir properties among different oilfields. As a case area of the above carbonate reser- voirs correlation, Tahe and Tazhong oilfields are chosen for the study through an integrated analysis of biostratigraphic isoch- ronous framework, cores, thin sections, logs, and strontium isotopes. The research shows that the two areas were respectively attributed to different carbonate platforms during the Lianglitag Formation depositional phase. For the Lianglitag Formation, five fourth-order sequences may be divided in Tazhong, whereas only four fourth-order sequences are preserved in Tahe that correspond to the lower ones observed in Tazhong. The Lianglitag Formation carbonate platform in Tahe was characterized by ramp and/or weak rimmed types, with low depositional rates (37 ktm/a), higher whole-rock clastic contents, and higher 878r/86Sr isotope ratios of carbonate matrix, showing relatively deep-water environment and evident terrigenous input for car- bonate deposition. However, a strongly rimmed carbonate platform was developed in Tazhong, with high depositional rates of 250 p.m/a and less whole-rock clastic contents, indicating a high-energy depositional environment. Because of the sedimentary environment differences mentioned above, less high-energy facies but relatively intense syndepositional (early diagenetic) sea-water cementation of carbonates were developed in Tahe, and ubiquitous high-energy reef and shoal facies, with a frequent exposure to subaerial, and weak syndepositional sea-water cementation of carbonates in Tazhong. Therefore, fewer primary pores occurred in the Lianglitag Formation carbonate rocks of Tahe, whereas more primary pores were preserved in the same lithostratigraphic unit of the Tazhong (No. 1 fault zone). Available high-energy reef-shoal facies and early diagenesis, with more primary pores preserved, provided a key material basis for the Lianglitag Formation carbonate reservoirs that largely oc- curred in Tazhong. 展开更多
关键词 sedimentary environment carbonate platform Lianglitag Formation Tahe Oilfield Tazhong Oilfield
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