期刊文献+
共找到2,317篇文章
< 1 2 116 >
每页显示 20 50 100
Discussion on the application prospect of the transient electromagnetic method based on the dual launcher and mine advanced detection
1
作者 Zhen Yang Huizhou Liu +5 位作者 Shengqing Wang Yu Cao Ya Dong Chenghu Niu Weiwen Song Guoxin Xie 《World Journal of Condensed Matter Physics》 CAS 2024年第1期21-33,共13页
The dual transmitter implements the equivalent anti-magnetic flux transient electromagnetic method, which can effectively reduce the scope of the transient electromagnetic detection blind area. However, this method is... The dual transmitter implements the equivalent anti-magnetic flux transient electromagnetic method, which can effectively reduce the scope of the transient electromagnetic detection blind area. However, this method is rarely reported in the detection of pipelines in urban geophysical exploration and the application of coal mines. Based on this, this paper realizes the equivalent anti-magnetic flux transient electromagnetic method based on the dual launcher. The suppression effect of this method on the blind area is analyzed by physical simulation. And the detection experiment of underground pipelines is carried out outdoors. The results show that the dual launcher can significantly reduce the turn-off time, thereby effectively reducing the impact of the blind area on the detection results, and the pipeline detection results verify the device’s effectiveness. Finally, based on the ground experimental results, the application prospect of mine advanced detection is discussed. Compared with other detection fields, the formation of blind areas is mainly caused by the equipment. If the dual launcher can be used to reduce the blind area, the accuracy of advanced detection can be improved more effectively. The above research results are of great significance for improving the detection accuracy of the underground transient electromagnetic method. 展开更多
关键词 A Dual Launcher Physical Simulation Transient Electromagnetic method Mine Geophysical prospecting Detection Blind Area Application prospect
下载PDF
Analysis of prospecting polymetallic metallogenic belts by comprehensive geophysical method 被引量:3
2
作者 XIA Fan SONG Hong-wei +2 位作者 WANG Meng WANG Hong-liang CHEN Yu 《Journal of Groundwater Science and Engineering》 2019年第3期237-244,共8页
This paper is based on the analysis and research on the silver-lead-zinc polymetallic ore in New Ballyhoo Banner in southern Manzhouli of Inner Mongolia.Because metal mineralization brings rock formations,the geophysi... This paper is based on the analysis and research on the silver-lead-zinc polymetallic ore in New Ballyhoo Banner in southern Manzhouli of Inner Mongolia.Because metal mineralization brings rock formations,the geophysical features such as low resistivity,high polarization rate and uneven distribution of magnetization,the comprehensive geophysical methods are adopted including high-precision magnetic measurement,high-power induced polarization,IP field middle gradient and controlled source audio-frequency magnetotellurics.In the survey work of multi-metal ore deposits,from surface sweeping to single point measurement,and from single point to section going deeper layer by layer,the resolution of measurement is continuously improved,and various geophysical methods support and complement each other,so explorers can successfully predict the direction,scale and volume of the metallogenic belts in conjunction with geochemical exploration,geological survey and drilling.It has provided a strong basis for completing the exploration task of predicting the reserve volume of ore bodies.The research conclusions of this exploration case have thus a high reference value in the same type of exploration work. 展开更多
关键词 Manzhouli HIGH-PRECISION magnetic measurement Middle-gradient method IP field prospecting Controlled source audio-frequency MAGNETOTELLURICS POLYMETALLIC ORES
下载PDF
Feasibility of central loop TEM method for prospecting multilayer water-fi lled goaf 被引量:9
3
作者 Yan Shu Xue Gou-Qiang +2 位作者 Qiu Wei-Zhong Li Hai Zhong Hua-Sen 《Applied Geophysics》 SCIE CSCD 2016年第4期587-597,736,共12页
With deep mining of coal mines, prospecting multilayer water-filled goaf has become a new content that results from geophysical exploration in coalfields. The central loop transient electromagnetic (TEM) method is f... With deep mining of coal mines, prospecting multilayer water-filled goaf has become a new content that results from geophysical exploration in coalfields. The central loop transient electromagnetic (TEM) method is favorable for prospecting conductive layers because of the coupling relationship between its field structure and formation. However, the shielding effect of conductive overburden would not only require a longer observation time when prospecting the same depth but also weaken the anomalous response of underlying layers. Through direct time domain numerical simulation and horizontal layered earth forward modeling, this paper estimates the length of observation time required to prospect the target, and the distinguishable criterion of multilayer water-filled goal is presented with observation error according to the effect of noise on observation data. The observed emf curves from Dazigou Coal Mine, Shanxi Province can distinguish multilayer water-filled goaf. In quantitative inversion interpretation of observed curves, using electric logging data as initial parameters restrains the equivalence caused by coal formation thin layers. The deduced three-layer and two-layer water-filled goals are confirmed by the drilling hole. The result suggests that when observation time is long enough and with the anomalous situation of underlying layers being greater than the observation error, the use of the central loop TEM method to orosoect a multilaver water-filled goaf is feasible. 展开更多
关键词 central loop TEM method prospecting multilayer water-filled goaf conductive shielding layer numerical and theoretical analysis length of observation time observation error distinguishable criterion
下载PDF
A TOTAL CONTENT X—RAY FLUORESCENCE METHOD FOR COPPER PROSPECTING
4
作者 周四春 谢庭周 葛良全 《Nuclear Science and Techniques》 SCIE CAS CSCD 1992年第3期191-195,共5页
A new method is proposed to prospect copper deposits with portable XRF analyzer. The method is based on the close relation between Cu and the chalcophile elements or some other elements in the geochemical anomalies of... A new method is proposed to prospect copper deposits with portable XRF analyzer. The method is based on the close relation between Cu and the chalcophile elements or some other elements in the geochemical anomalies of a Cu deposit. Applications of the technique in Northeast China are presented. 展开更多
关键词 Portable X-RAY FLUORESCENCE ANALYZERS Total content X-RAY FLUORESCENCE method prospecting for COPPER DEPOSITS
下载PDF
Application of Gravitational Methods to Prospecting Salt(Potash) Rocks in the Kuqa Depression
5
作者 SONG Xiaochao DENG Xiaolin +1 位作者 WEI Zhao ZHAO Yuhai 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2014年第S1期248-249,共2页
The Kuqa depression deposited thick rock salt,which has a lower density than surrounding rocks.When salt bodies form a certain scale,obvious negative gravity anomalies can be detected in the surface.Therefore,gravitat... The Kuqa depression deposited thick rock salt,which has a lower density than surrounding rocks.When salt bodies form a certain scale,obvious negative gravity anomalies can be detected in the surface.Therefore,gravitational method can quickly obtain the shape,plane distribution of deep-seated salt bodies and overall tectonic morphology of the basin. 展开更多
关键词 deep POTASH Application of Gravitational methods to prospecting Salt rock
下载PDF
Magnetic Method Surveying and Its Application for the Concealed Ore-Bodies Prospecting of Laba Porphyry Molybdenum Ore Field in Shangri-La, Northwestern Yunnan Province, China
6
作者 Nguyen Ba Dai Chuan Dong Xue +4 位作者 Kun Xiang Kun Xiang Tran Trong Lap Qureshi Javed Akhter Shi Lei Li 《Journal of Geoscience and Environment Protection》 2014年第3期46-53,共8页
Recently, a number of large molybdenum (-copper) deposits have been discovered successively in the Laba area, Shangri-La county, northwestern Yunnan province. The investigation confirmed that there is a superlarge por... Recently, a number of large molybdenum (-copper) deposits have been discovered successively in the Laba area, Shangri-La county, northwestern Yunnan province. The investigation confirmed that there is a superlarge porphyry-skarn hydrothermal vein type molybdenum-polymetallic- metallogenic system with the total prediction reservoir of more than 150 mt molybdenum. The porphyry intrusions contributed to the mineralization closely, the superficial little vein molybdenum (-copper, lead, silver) ore-bodies are usually located in faults and fractures, and the deep porphyry type ore-bodies occurred in the granodiorite porphyries, the skarn type ore-bodies occurred in the contact zone intrused into Triassic limestone or Permian basalts. Laba ore block is a new exploration area with great prospecting potential. In order to reduce the target area and guide the further exploration work, the magnetic method measurement about 3.3 square kilometres was carried out in the ore field. This paper presents an application of analyzing the horizontal and vertical derivative, using Fast Fourier Transform (FFT) filter (FFT high-pass, low-pass, cosine roll-off, suscepbility), calculated spectra frequency energy to predict the depth and intensity of the apparent remanence magnetization of source (Hilbert). The calculated results and magnetic anomalous show that the remanence anomaly is caused by the intrusions into the Triassic limestone and Permian basalts with small anomalies, and the depth of located source is not great. We have identified a number of positions to the three drilled well, the drilled result specify interpretation with very high accuracy. The magnetic method is helpful to identify porphyry mineralization, and judge the shape and depth of the concealed ore-bearing intrusive bodies under the similar geological condition. 展开更多
关键词 Magnetic method Physical Property Parameters Concealed Ore-Bodies prospecting LABA PORPHYRY MOLYBDENUM (-Copper) ORE Field NORTHWESTERN Yunnan Province
下载PDF
A New and Nontraditional Method to Locate Concealed Mineral Resources—Geogas Prospecting from Nuclear Analysis and Accumulation Sampling
7
《Journal of Earth Science》 SCIE CAS CSCD 2000年第2期25-25,共1页
关键词 A New and Nontraditional method to Locate Concealed Mineral Resources Geogas prospecting from Nuclear Analysis and Accumulation Sampling
下载PDF
Geophysical Prospecting of Karst Water in Yunnan Province,China 被引量:6
8
作者 WANG Yu YUAN Dao-xian YANG Shi-yu 《中国岩溶》 CAS CSCD 北大核心 2007年第2期155-161,169,共7页
由于岩溶发育的不均匀性,决定了岩溶水的埋藏分布也具有不均匀的特征,含水层富水性的空间差异极大。岩溶水的不均匀性给岩溶水勘查和开发工作带来了很大的困难,以至于裸露型岩溶石山区的供水勘探孔成井率仍然很低。要有效地发挥岩溶... 由于岩溶发育的不均匀性,决定了岩溶水的埋藏分布也具有不均匀的特征,含水层富水性的空间差异极大。岩溶水的不均匀性给岩溶水勘查和开发工作带来了很大的困难,以至于裸露型岩溶石山区的供水勘探孔成井率仍然很低。要有效地发挥岩溶水资源的优势,合理有效地开发岩溶水资源,解决岩溶地区严重干旱缺水问题,关键是解决找水难的问题。要解决岩溶地区普遍存在的找水难题, 展开更多
关键词 地球物理探测法 岩溶水 云南 地球物理参数
下载PDF
Application of Environmental Geophysical Prospecting in Environmental Quality Investigation of Reclaimed Land
9
作者 Taicong CHEN Hong WU +1 位作者 Haifeng HUANG Ruirui SUN 《Meteorological and Environmental Research》 CAS 2020年第3期81-85,共5页
Traditional geophysical prospecting methods( electromagnetic induction method,high-density resistivity method and ground penetrating radar method) were applied to the environmental quality detection of reclaimed land ... Traditional geophysical prospecting methods( electromagnetic induction method,high-density resistivity method and ground penetrating radar method) were applied to the environmental quality detection of reclaimed land in the "198" area of Shanghai. According to the results of drilling sampling and laboratory analysis,the accuracy,suitability and consistency of theses geophysical prospecting methods were evaluated. 展开更多
关键词 "198"area Reclaimed land Geophysical prospecting method Background value
下载PDF
A REVIEW OF THE HISTORY OF CHINA'S MACHINE DESIGN METHODS AND THE PROSPECT
10
作者 Yang Shuzi & Liu Kerning(Huazhong University of Science and Technology, Wuhan) CAS Member and president of Huazhong University of Science and Technology 《Bulletin of the Chinese Academy of Sciences》 1997年第2期175-184,共10页
This paper examines the history of China’s machine design methods and its status quo. First of all, it discusses machine design methods in ancient China. (1)The design idea of creation by the intelligent and expositi... This paper examines the history of China’s machine design methods and its status quo. First of all, it discusses machine design methods in ancient China. (1)The design idea of creation by the intelligent and exposition by the ingenious. (2)The design principle of the dependence of workmanship on criteria. (3)A macroscopic view of the object of design. (4)The design method of manufacture emphasizing shape. (5)Technological requirements on excellent material and consummate skill. Second, it discusses machine design ideas in ancient China. (1)The system idea in machine design, (2)The idea of machine design.(3)The idea of standardization in machine design. (4)The idea of automation in machine design. Finally, it discusses the status quo and a look ahead of the theory of machine design in China. 展开更多
关键词 A REVIEW OF THE HISTORY OF CHINA’S MACHINE DESIGN methodS AND THE prospect
下载PDF
站在巨人的肩膀上:文献综述方法的应用与展望 被引量:1
11
作者 晋琳琳 王丽 《财经理论研究》 2024年第2期1-19,共19页
不同的文献综述方法对学术研究的发展有不同的价值和作用。鲜有文章对文献综述方法进行全面介绍和系统梳理。本文以318篇创业领域的综述类文章为例,进行系统梳理和分析,整理出六种主流的文献综述方法。研究发现:叙述性综述和系统文献综... 不同的文献综述方法对学术研究的发展有不同的价值和作用。鲜有文章对文献综述方法进行全面介绍和系统梳理。本文以318篇创业领域的综述类文章为例,进行系统梳理和分析,整理出六种主流的文献综述方法。研究发现:叙述性综述和系统文献综述的发展已经相对成熟,元分析和文献计量正处于快速发展阶段,而定性研究综合和历史计量分析处于刚刚起步阶段,学者对此的关注度不足;叙述性综述在某一研究主题的初期研究阶段能够发挥更大价值,定性研究综合和历史计量分析在研究主题的发展期更有价值,系统文献综述、元分析、文献计量在研究主题成熟期更能发挥其作用;综述方法之间存在相通性和互补性,可以将定性和定量综述方法结合使用。学者应结合研究主题发展需要和文献综述目的,选择适宜的文献综述方法,以发挥文献综述的最大价值,促进学科理论的发展与创新。最后,本文介绍了文献综述方法的其他新兴方向,并提出未来展望与建议。 展开更多
关键词 文献综述方法 创业领域 应用与展望 学术贡献
下载PDF
坦桑尼亚恩泽加地区覆盖区选区评价及综合找矿方法研究 被引量:1
12
作者 司建涛 白德胜 +5 位作者 祁东 孙进 张明礼 梁永安 邵江波 姚明高 《矿产与地质》 2024年第1期119-125,153,共8页
恩泽加(Nzega)绿岩带为坦桑尼亚环维多利亚湖八大绿岩带之一,为坦桑尼亚重要的产金区域之一。由于其地表覆盖程度较高,地质调查和勘查工作程度较低,虽然针对隐伏型金矿床尚具备一定的找矿潜力,但同时也面临选区评价和找矿困难的问题。... 恩泽加(Nzega)绿岩带为坦桑尼亚环维多利亚湖八大绿岩带之一,为坦桑尼亚重要的产金区域之一。由于其地表覆盖程度较高,地质调查和勘查工作程度较低,虽然针对隐伏型金矿床尚具备一定的找矿潜力,但同时也面临选区评价和找矿困难的问题。研究表明:在选区评价中,针对太古界尼安萨群条带状铁建造的区域航磁异常解译和研究区地球化学金异常分析是最主要的;而在采用地物化综合找矿方法开展勘查工作中,磁法和激电法结合对于寻找覆盖区下的含铁建造内部或接触带附近或剪切带内的金矿床效果较好。该地区首次使用了取样钻施工采样,对覆盖层下发育的含金矿化蚀变带进行了地质工程揭露,取得了一定的找矿成果,先后发现了伊博罗格罗(Iborogo)、卢素(Lusu)和乔马(Choma)等多个金矿床(点)。 展开更多
关键词 绿岩带 覆盖区 地物化综合找矿 取样钻 恩泽加地区 坦桑尼亚
下载PDF
煤基碳材料制备与电化学储能应用
13
作者 李振 尚颖泽 +2 位作者 朱张磊 常静 赵凯 《洁净煤技术》 CAS CSCD 北大核心 2024年第5期99-117,共19页
煤基碳材料作为一种重要煤衍生碳材料,优点主要体现在比表面积高、导电性好、资源丰富且价格低,在储能领域应用前景广阔。煤基碳材料制备方法主要包括活化法、模板法以及杂原子掺杂法等。活化法是常用煤基碳材料制备方法,通过高温下用... 煤基碳材料作为一种重要煤衍生碳材料,优点主要体现在比表面积高、导电性好、资源丰富且价格低,在储能领域应用前景广阔。煤基碳材料制备方法主要包括活化法、模板法以及杂原子掺杂法等。活化法是常用煤基碳材料制备方法,通过高温下用气体或化学试剂对煤活化处理,可获得具有高比表面积和丰富孔结构的煤基碳材料。模板法通过选择合适模板材料,制备有特殊孔结构的碳材料,且孔径均一、结构有序。杂原子掺杂法通过向煤基碳材料中引入杂原子,调控其电子结构和电化学性能,不仅可在碳材料表面形成官能团,提高材料反应效率,还可通过氧化还原反应产生赝电容,提高材料电化学性能。以煤为前驱体制备的煤基电极材料种类繁多,包括煤基无定形碳、煤基多孔碳、煤基石墨、煤基碳纳米纤维、煤基石墨烯及煤基石墨烯量子点等。与传统碳电极材料前驱体(天然石墨、石油焦、沥青焦等)相比,煤基碳材料芳香层片结构和烷基支链有特殊性质,芳香层片经高温石墨化形成横向延展的石墨晶层,而烷基支链则形成有活性基团的碳中间体或小分子团簇,进一步构筑出新碳材料,使煤基碳材料具备制造电极材料优势。在电化学储能领域,煤基电极材料已广泛的应用。研究者已将煤基碳材料应用于超级电容器、锂离子电池、钠离子电池、钾离子电池等储能器件,并取得良好性能表现。煤基碳材料作为潜力巨大的新型能源材料,具有广阔应用前景和重要研究意义。然而,目前煤基电极材料在储能领域研究仍存在着许多困难和挑战,如在对原煤处理过程中强氧化剂的使用、对高温高压环境和特殊保护气氛的需求,都会产生污染环境的废弃物及副产品。因此,未来不仅需优化煤基碳材料制备工艺、提高材料电化学性能、拓展煤基碳材料在能源储存领域应用,更需采用绿色、安全且经济的方法规模化制备高品质煤基碳材料,以期为煤炭清洁、高效、低碳利用提供支持,为开发先进煤衍生碳材料提供参考。 展开更多
关键词 煤基碳材料 制备方法 储能 应用前景
下载PDF
辽东半岛五龙金矿外围电性特征及找矿意义
14
作者 王兴春 邱海城 +5 位作者 李建平 智庆全 李华 武军杰 邓晓红 吴琼 《黄金科学技术》 CSCD 北大核心 2024年第1期1-12,共12页
辽东五龙金矿经过80余年的开采,矿山资源储备严重下滑,后备资源不足问题日益突出,亟需查明矿区深部和外围矿产资源。通过在v163号脉西北和东南两侧以及100号断裂南侧开展瞬变电磁法测量工作,构建了相应的二维和三维地电模型,分析了矿区... 辽东五龙金矿经过80余年的开采,矿山资源储备严重下滑,后备资源不足问题日益突出,亟需查明矿区深部和外围矿产资源。通过在v163号脉西北和东南两侧以及100号断裂南侧开展瞬变电磁法测量工作,构建了相应的二维和三维地电模型,分析了矿区低阻异常特征;结合前人研究成果,推断出金矿成因类型和下一步找矿方向。研究结果表明:v163号脉西北方向P0剖面上低阻区是由包括163号脉西北段的细粒闪长岩脉群引起的,属于石英脉型成矿的可能性较大;100号断裂南侧三维地电模型中的低阻区域与大孤顶子金矿矿化点相对应,该低阻区向北侧深部规模增大,异常未封闭,表明该区域北侧深部具有良好的找矿前景,值得进一步开展研究工作;v163号脉东南方向的三维地电模型中,低阻异常值在数量级上明显低于前二者,推测为蚀变带引起,后经工程验证孔揭露,该区域纵向存在多层不连续的硅化蚀变岩,最大厚度为41m,蚀变类型有硅化、绢云母化、绿泥石化以及不同程度的黄铁矿化。研究表明,五龙金矿不仅存在石英脉型金矿体,还有蚀变岩型金矿体,后者可能是该矿区下一个找矿的主要方向。 展开更多
关键词 瞬变电磁法 石英脉型金矿 蚀变岩型金矿 外围找矿 v163号脉 五龙金矿
下载PDF
瞬变电磁法在地下水勘查中应用研究
15
作者 宋启文 吕天江 罗来冰 《石化技术》 CAS 2024年第9期193-195,共3页
瞬变电磁技术(Transient Electromagnetic Method,简称TEM)是近年发展较快并得到广泛应用的一种勘探方法。由于其观测的是二次场,可在近区观测,对低阻含水体反应灵敏,而且体积效应小、纵横向分辨率高,施工也很方便、快捷,所以效率很高... 瞬变电磁技术(Transient Electromagnetic Method,简称TEM)是近年发展较快并得到广泛应用的一种勘探方法。由于其观测的是二次场,可在近区观测,对低阻含水体反应灵敏,而且体积效应小、纵横向分辨率高,施工也很方便、快捷,所以效率很高。将该方法利用在贵州省兴义市清水河镇发大地下水勘查中,勘查效果极佳,所得成果接近真实,故提出将瞬变电磁法可以作为浅层水文地质勘探的重要手段。 展开更多
关键词 瞬变电磁法(TEM) 地下水 勘查 应用
下载PDF
面向新型电力系统的颠覆性技术识别研究现状与展望
16
作者 李欣 王艳 +1 位作者 高宁 黄兴德 《新型电力系统》 2024年第1期78-93,共16页
颠覆性技术对新型电力系统结构形态和深度脱碳具有重大颠覆性影响。尽早识别出新型电力系统中的颠覆性技术,对于新型电力系统建设决策和政府能源电力战略决策是至关重要的。为把握新型电力系统颠覆性技术识别研究现状,首先对颠覆性技术... 颠覆性技术对新型电力系统结构形态和深度脱碳具有重大颠覆性影响。尽早识别出新型电力系统中的颠覆性技术,对于新型电力系统建设决策和政府能源电力战略决策是至关重要的。为把握新型电力系统颠覆性技术识别研究现状,首先对颠覆性技术识别研究相关文献进行分析,并对比分析国内外颠覆性技术识别研究现状;其次,系统梳理现有颠覆性技术识别方法,并归纳总结各种识别方法的优势、不足及适用条件;最后,分析了现有研究存在的问题,并提出面向新型电力系统建设的颠覆性技术识别研究方向:加强新型电力系统颠覆性技术相关理论研究;将多源数据融合纳入到新型电力系统颠覆性技术识别研究中;将机器学习、深度学习等人工智能方法纳入新型电力系统颠覆性技术的事前识别研究;积极开展新型电力系统不同环节的颠覆性技术识别研究。 展开更多
关键词 新型电力系统 颠覆性技术 识别方法 研究现状 展望
下载PDF
环境中微塑料检测方法的研究进展 被引量:3
17
作者 卢琦园 马艳 +3 位作者 陈思帆 郑晶 任明忠 于云江 《环境化学》 CAS CSCD 北大核心 2024年第7期2166-2180,共15页
微塑料是指粒径小于5 mm的塑料碎片或颗粒,能够在大气、土壤和水体中迁移和富集,通过食物链累积,对人体健康产生严重危害.为了更好地评估环境中微塑料的污染,本文详细综述了微塑料检测方法和技术手段的应用现状,包括显微镜分析、扫描电... 微塑料是指粒径小于5 mm的塑料碎片或颗粒,能够在大气、土壤和水体中迁移和富集,通过食物链累积,对人体健康产生严重危害.为了更好地评估环境中微塑料的污染,本文详细综述了微塑料检测方法和技术手段的应用现状,包括显微镜分析、扫描电镜能谱分析、光谱分析、热分析和质谱分析等微塑料常用检测方法并对比了各方法的优缺点.总结了近年来微塑料检测的新方法和新技术,重点讨论微塑料检测当前面临的技术挑战和未来的研究方向,对建立统一和标准化的微塑料分析方法进行展望,为系统地和进一步地开展微塑料的污染评价及风险评估提供指导. 展开更多
关键词 微塑料 检测方法 应用前景
下载PDF
综合地球物理方法在中深层地热资源勘查中的应用综述 被引量:2
18
作者 马健 王晓光 +3 位作者 刘明明 吴振 郭恒 张龙 《矿产勘查》 2024年第4期623-633,共11页
地热能作为一种清洁低碳、可循环利用的稳定能源,其开发利用对于推动温室气体减排,实现碳中和、碳达峰目标具有重要意义。目前,中国资源开发利用主要集中在浅层地温能方面,中深层地热能勘探受储层埋深大、勘查手段单一等影响勘查难度较... 地热能作为一种清洁低碳、可循环利用的稳定能源,其开发利用对于推动温室气体减排,实现碳中和、碳达峰目标具有重要意义。目前,中国资源开发利用主要集中在浅层地温能方面,中深层地热能勘探受储层埋深大、勘查手段单一等影响勘查难度较大,为提高地热勘查效率,需引入成本低、环境破坏性小、施工效率高、探测深度大的地球物理技术。本文介绍了近年来中深层地热资源调查采用的重、磁、电、震等多种地球物理方法的基本原理与应用概况,并对不同地球物理方法的特点和适用条件进行了对比分析,为不同的地质背景条件与地热勘探阶段物探方法的选择提供借鉴经验。 展开更多
关键词 地热 地球物理 资源勘查 综合物探方法
下载PDF
广域电磁法在强干扰碳酸盐岩矿区的应用探索 被引量:4
19
作者 李星 张慧 +3 位作者 蒋永芳 解康 牛杰 张婷 《矿产勘查》 2024年第6期1007-1014,共8页
目前中国各成熟矿山大多面临浅部资源量不足的危机,对深部资源勘探的需求在不断增强。在实际勘探应用中,除了要进行大深度高精度探测,还要克服复杂地形与强电磁干扰的影响,因此对勘探技术提出了更高的要求。本文采用广域电磁法,在地形... 目前中国各成熟矿山大多面临浅部资源量不足的危机,对深部资源勘探的需求在不断增强。在实际勘探应用中,除了要进行大深度高精度探测,还要克服复杂地形与强电磁干扰的影响,因此对勘探技术提出了更高的要求。本文采用广域电磁法,在地形复杂且电磁干扰严重的云南某碳酸盐岩矿区开展了应用探索研究。结果认为广域电磁法在复杂碳酸盐岩矿区能够有效地压制干扰,对断层和已知矿体反映明显。据此在矿区深部圈定了可能的矿致异常,为矿区深边部找矿提供了指示方向,在复杂地形强电磁干扰的碳酸盐岩矿区开展攻深找盲探矿工作,广域电磁法能够实现高精度大深度探测,抗干扰能力强,工作效率高,可作为一种深部找探矿的技术手段。 展开更多
关键词 广域电磁法 强电磁干扰 碳酸盐岩矿区 深部找矿
下载PDF
氧化锑(Sb_(2)O_(3))纳米材料的制备及应用现状
20
作者 濮从政 穆丹 +2 位作者 郝栋连 毛雪 张坤 《纺织科学与工程学报》 CAS 2024年第2期120-126,119,共8页
综述了近些年Sb_(2)O_(3)纳米材料的制备方法、工艺及其应用的研究进展,并对其未来发展前景进行了展望。目前,Sb_(2)O_(3)纳米材料的制备方法可分为固相法、气相法和液相法三大类,以机械球磨法、低压蒸汽法、等离子法、醇解法、化学还... 综述了近些年Sb_(2)O_(3)纳米材料的制备方法、工艺及其应用的研究进展,并对其未来发展前景进行了展望。目前,Sb_(2)O_(3)纳米材料的制备方法可分为固相法、气相法和液相法三大类,以机械球磨法、低压蒸汽法、等离子法、醇解法、化学还原法和静电纺丝法为典型代表,上述方法兼具高效且稳定等优点,但也存在能耗大、制备过程复杂及力学性能较差等局限性。Sb_(2)O_(3)纳米化后可显著提升其耐磨性、折射率、质子电导率等,可被拓展应用于阻燃剂、传感器及半导体等领域。针对目前Sb_(2)O_(3)纳米材料性能难以显著提升且无法单独使用等问题,其未来发展方向将在现有技术基础上加以研究创新,有望在Sb_(2)O_(3)纳米纤维上获得优异的力学性能,并实现性能显著提升的同时提高其实际应用性。 展开更多
关键词 Sb_(2)O_(3) 纳米材料 制备方法 应用 未来展望
下载PDF
上一页 1 2 116 下一页 到第
使用帮助 返回顶部