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1.
遥感找矿模型是在当前技术条件下,描述一类矿床形成和保存的一系列遥感找矿标志的组合,应包括遥感地质找矿标志、遥感蚀变信息标志和矿床改造信息标志等几个方面的研究内容。在广泛收集西天山吐拉苏盆地矿产资源的多源地学数据基础上,建立了区域金矿床的遥感找矿模型,利用地理信息系统的空间分析功能对区域矿产资源成矿潜力进行了评价。  相似文献   

2.
针对遥感化探信息综合分析与应用相关内容,做了简单的论述。在地质找矿作业中,应用遥感技术、化探技术,收集相关信息,实现地质信息、遥感信息、化探信息等的有效结合,通过数据处理分析,为后续地质找矿工作的开展,奠定坚实的基础,能够提高找矿工作的效率,控制找矿的成本。  相似文献   

3.
通过地质找矿勘查可以获得自然资源利用的准确信息,为了提高地质找矿勘查水平,必须遵循基本的技术原则,创新和有效地应用新的地质找矿勘查方法.本文分析了地质矿产勘查及找矿技术应用的大纲原则;对地质找矿勘查方法创新进行了具体的研究;提出了地质勘测的创新发展策略.  相似文献   

4.
为了适应现阶段金属矿井深部找矿工作的要求,必须就深部找矿的深度特点展开分析,以增强找矿质量,这需要就矿区相关地质问题展开分析,从而获得相关的地质信息,以制定针对性找矿方案,满足人们对金属矿产资源的需求,这需要健全金属矿床深部找矿方案,就相关深部找矿地质问题展开研究。  相似文献   

5.
对地质找矿工作而言,其涉及的方面众多,应用现代化的找矿技术手段固然重要,但也必须要重视地质资料的重要作用,地质资料作为广大地质专家和学者,长期工作实践调查中总结的经验资料信息,是地质找矿工作的坚实基础和重要依据,对找矿工作的稳步推进具有非常重要的作用和意义。因此,注重地质资料的开发与管理服务工作显得越发重要起来。文中对地质找矿工作中地质资料开发的作用和意义进行分析,并对地质找矿工作中地质资料相关服务工作予以探讨,提出提高地质资料服务工作质量的有效方法,使得地质资料在地质找矿工作中的功能得到最大化的发挥,为地质找矿工作的稳定发展奠定坚实的基础。  相似文献   

6.
文章对在地质找矿工作中怎样利用遥感技术对相关信息的获取进行分析,主要涉及岩石内矿物信息的获取,以及矿化蚀变信息、地质构造信息等,并简述了遥感地质找矿的发展前景,即遥感生物地球化学、多光谱遥感蚀变信息提取、高光谱遥感技术的应用。  相似文献   

7.
在我国地质找矿过程中,物探技术的应用比较普遍,能提高地质找矿信息的准确性以及科学性,对推动我国矿产资源开发行业的稳定发展有积极意义。因此,需要研究物探技术在地质找矿中的具体应用情况,同时分析物探技术在地质找矿中的新突破,扩大物探技术的应用范围,提升我国地质工程勘察工作的发展。  相似文献   

8.
传统勘查方法在地质找矿过程中,对矿产分布情况的勘查准确率不高,为此提出应用海底重力勘查方法进行地质找矿。对地质密度差进行勘查,提取地质构造信息,计算地质矿物的发射率和波谱,从而实现高效精准的地质找矿。通过实验论证可以得出,相比传统方法,应用海底重力勘查的找矿方法能够提高勘查准确率,并且随着地质勘查面积的不断增加,这种优势更为明显。  相似文献   

9.
地质矿产勘查工作包含的内容较多,如危机矿山接替资源、矿山生产、综合评价共伴生矿、关闭阶段地质勘查。所以,地质矿产勘查的开展应遵循自然规律、循序渐进原则。当前新形势下找矿技术类型较多,如GPS感应技术、低频电磁技术、X射线荧光技术、地球化学勘探技术。为提高地质勘查与找矿效率,很有必要提高勘查人员的专业技能、创新勘查找矿技术、共享信息数据、以矿产分布规律开展找矿工作、完善找矿信息参数。  相似文献   

10.
周志强 《中国锰业》1997,15(1):10-17
主要论述了中国“桃江式”优质锰矿Tm数字图象技术处理方法所增强、提取遥感地质信息特征为基础的找矿评价预测研究及其应用效果。首次提出了中国“桃江式”优质锰矿遥感地质找矿模式和4个区段的最佳找锰矿预测靶区,为地质找矿、勘探设计提供了后备基地。  相似文献   

11.
12.
The efficacy of treatment with cambendazole was tested in 1-year-old horses on a farm in Dubrovka, Ukraine. Thirty-five horses were treated. Their egg output was compared on the day of treatment and 14 days later with that of 33 untreated horses. Before treatment the mean number of eggs g-1 faeces was 614 in the controls and 766 in horses that had been treated. After 14 days the mean egg output in the controls was 580 and in the treated horses 369. This means a reduction of 54.5%. Only cyathostome larvae could be cultured from faeces collected after treatment. It can be concluded that benzimidazole resistance in cyathostomes is present in the Ukraine.  相似文献   

13.
以重庆大学、重庆邮电大学和重庆理工大学为例,剖析重庆高校推进产学研合作的基本模式,已经取得的突出成绩,分析总结其基本经验.从完善政策法规体系、强化经济调控、建立组织机构、加强中介建设及开展国际产学研合作等方面,提出了深入推进重庆高校产学研合作的对策建议.  相似文献   

14.
We report the appearance of apoptotic cells in experimental myocardial infarction (rabbit heart) in in situ and in vitro preparations. Apoptosis was recognized by intravital staining with Hoechst 33342 (Ho342), by nick-end labeling (TUNEL) and by DNA laddering. A steady rise in the relative number of apoptotic cardiomyocytes (apoptotic index) was noted in in situ preparations. Apoptosis was first noted 6 h after the onset of ischemia with its highest value occurring after 72 h. Apoptotic nuclei were absent in remote areas of the left and right ventricles. Apoptotic nuclei within the infarcted area showed diminished intensity of Ho342 fluorescence. Three days after ischemia, a border zone adjacent to the infarcted area consisting of apoptotic macrophages was recognized. A novel finding was the appearance of apoptotic cardiomyocytes in the isolated perfused ischemic heart. Occurring as early as 50 min after the onset of ischemia, a high apoptotic index was present adjacent to the ligature placed around the coronary artery. This observation provides the opportunity to selectively examine factors leading to apoptosis in the ischemic heart under controlled experimental conditions.  相似文献   

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17.
A prospective study of fractures in 231 children received at Khartoum North Teaching Hospital(KNTH) was carried out for a period of six months. The incidence of child fracture rated as one per day, then it increased from the age of 5 years onwards in boys and between 6 and 8 years in girls. Most injuries were sustained during the day time, especially between late afternoon and sunset. 82% of injured children presented to a medical facility, while 18% were taken to native healers first. Non-road traffic accidents accounted for 84% of the fractures mainly due to sports, domestic injuries and falls; whereas road traffic accidents were 16% and occurred mainly in pedestrians. Forty three percent of the fractures needed only first aid and splintage while 42% needed closed reduction. Thirty one percent of all patients were treated as inpatients. The long bones were affected in 91% of all fractures, the commonest site being the distal end of the forearm (26%), followed by supracondylar fracture of the humerus (15.6%). In the upper limb, left-sided fractures predominated. The epiphyseal injuries were 3.5% of all fractures, mainly at the distal radial epiphysis. Boys were commonly affected between 13-15 years of age. Open fractures constituted 9.8% of the series and were mainly due to traffic accidents in town dwellers, the most vulnerable bones were those of the leg and foot. Pathological fractures accounted for 2.2% and were due to bone cysts and osteogenesis imperfecta. The problem of child safety and the preventive measures need to be more stressed.  相似文献   

18.
A model is presented in which ion translocation through the F0 part of the ATP synthase drives the rotation of the ring of c subunits (rotor) versus the a subunit (stator). The coupling ion binding sites on the rotor are accessible from the cytoplasm of a bacterial cell except for the c subunit at the interface to the stator. Here, the binding site is accessible from the periplasm through a channel formed by subunit a. In the ATP synthesis mode, a coupling ion is anticipated to pass through the stator channel into the binding site of the adjacent rotor subunit, following the electrical potential. Occupation of this site triggers, probably by electrostatic forces, the rotation of the ring. This makes the binding site accessible to the cytoplasm, where the coupling ion dissociates. Simultaneously, this rotation moves again an empty rotor subunit into the contact site with the stator, where its binding site becomes loaded and rotation continues.  相似文献   

19.
Certain patients enter psychoanalysis because of their inability to love another person. Often they report a repetitive erotic pursuit of desired partners, without being able to experience or maintain loving feelings. Kernberg has understood such difficulties as representing effects of early narcissistic disappointments and/or of difficulties in resolving oedipal conflicts. In this paper, Lacanian concepts of the mirror phase and symbolic love are employed to develop these issues. Sexualization of problems in mirroring may be fused with oedipal conflicts in some cases. An extended vignette is presented to illustrate the technical and theoretical issues.  相似文献   

20.
Increase in parasuicide in Scotland   总被引:1,自引:0,他引:1  
  相似文献   

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