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1.
陈爱明 《云南冶金》2004,33(3):9-13,29
从地质、技术经济的角度讨论拉拉铜矿合理矿床工业指标。通过分析论证认为调整矿床工业指标有利于满足矿山扩大规模开发的需要,提高矿山开发的经济效益,解决矿山生产过程中的实际问题。  相似文献   

2.
生产矿山工业指标的合理确定与动态使用   总被引:1,自引:0,他引:1  
王文学  杨言辰 《黄金》1996,17(1):9-12
金矿工业指标是划分矿与非矿的标准,也是评定矿床工业价值、圈定工业矿体和计算矿产储量的主要依据.工业指标确定和使用的合理与否,直接影响金矿勘查工作进程,资源利用程度,最终影响矿山生产效益。本文从工业指标的制定原则、影响因素等分析,提出黄金矿山使用动态工业指标的内容及其必要性.  相似文献   

3.
岩溶堆积型铝土矿是国内新类型的铝土矿床,平果铝土矿矿床的工业指标是在地勘探时期制定的,但未经生产验证,本文分析了堆积型铝土矿的地质特点和拜耳法生产氧化铝技术工艺条件对矿石质量的要求,并结合近几年矿山采、选资料和生产成本,对工业指标提出了一商榷和探讨意见。  相似文献   

4.
矿床工业指标的制定原则是在当前经济条件允许下,应尽可能多的利用地质资源.工业指标随着开采、选冶、价格等因素的变化而变化,矿山企业根据技术、经济论证的结果来调整矿山工业指标,有利于合理利用矿产资源和提高企业的经济效益,对矿床的勘查和开发具有重要的指导意义.  相似文献   

5.
刘辉 《世界有色金属》2023,(10):151-153
本文以某露天矿山为列,依据前期勘查成果,通过模拟未来矿山建设和生产的全过程,采用经济分析法论证矿床工业指标,分析未来矿山的经济效益情况,从而确定可采用的工业指标,为下阶段圈定矿体、估算资源提供依据。  相似文献   

6.
作者认为矿床工业指标的合理与否,是决定矿山企业经营效果的决定性因素。因为钨矿山矿床工业指标的不合理是导致钨矿山亏损的重要原因。并以汝城钨矿为例,在剖析现行钨矿床工业指标的基础上,运用技术经济学方法。对新的工业指标体系作了探讨。  相似文献   

7.
本文叙述了南芬露天铁矿矿床赋存条件的变化情况,论述了合理调整矿山工业指标的必要性,在此基础上,作者根据我国调整矿产工业指标的原则,提出了本人对南芬露天铁矿工业指标的调整意见.  相似文献   

8.
按照我国矿床工业指标管理的有关规定,在矿床详查、勘探过程中,必须对矿床工业指标进行论证。工业指标论证的方法有地质方案法、经济分析法及类比论证法,其中地质方案法是常用的论证方法。本文以四川某金铜矿床为例,介绍地质方案法论证多金属矿床边界品位、最低工业品位、最小可采厚度和夹石剔除厚度等矿床工业指标的过程。地质方案法一般步骤:首先拟定矿床工业指标方案,然后根据矿床地质特征、开采技术条件、矿区资源储量等,确定矿山采矿方案和选矿方案,通过技术经济比较,最终综合分析择优确定合理的矿床工业指标。  相似文献   

9.
新疆某铜矿矿床工业指标研究   总被引:2,自引:0,他引:2  
针对新疆某铜矿规模大、品位低、外部建设条件相对较差,而投资环境优良、管理模式先进等特点,通过采用合理的经营规模,先进的采选冶工艺,并经详细的地质、经济论证,提出了符合矿山实际情况的矿床计算工业指标。  相似文献   

10.
矿床的工业指标随着开采、选冶、价格等因素的变化而变化,采用经济分析法与地质方案法相结合对矿山生产技术指标进行分析。通过调整矿山工业指标,可以合理利用矿产资源和提高企业经济效益。  相似文献   

11.
曾宪龄 《钢铁》1995,30(10):79-82
论述了附加值的定义及计算方法,并以此为中心建立了一个附加值指标体系,进而在企业生产经营研究方法论领域提出了一个新的研究评价方法-附加值分析法;同时联系沈阳工业生产实际,论述了该方法的实际应用价值。  相似文献   

12.
Tested the hypothesis that a highly accurate target representation is available to the visuomotor system in brief (  相似文献   

13.
梁智  范虹 《有色矿冶》2003,19(1):52-54
在企业集团的财务控制体系中,母公司对子公司的财务监控对于子公司的经营管理者来说,是一种外部的强制约束,这对于子公司健康的发展是必要的,但却是不够的,要使子公司的经营人员能够真正地遵守企业集团的各项管理制度,其经营行为符合企业集团的利益,除了组织控制、预算控制、和资金控制这样的反向约束外,还要有一定的正面激励。这种激励作用就可以通过目标管理来获得。本文从研究企业集团建立对子公司深层次的激励机制——目标管理人手,分析在我国的企业集团中实施目标管理的重要性。文章的框架结构是:第一,设置目标的标准;第二,目标的确定;第三,确保目标管理的权威性——签订协议。  相似文献   

14.
并购因行业特殊性强、影响因素复杂、并购动机多元化等原因难以进行目标企业评价,在前人研究成果的基础上,结合钢铁行业本身的特点,设计了基于战略性并购动机的钢铁企业并购目标综合评价指标体系.从目标企业基本状况、可持续发展能力和并购效应三方面全面剖析钢铁企业并购目标,实现并购效果的量化.提出的指标体系通过实例验证其结果与实际情...  相似文献   

15.
Four experiments addressed the question of whether attention may be captured when the visual system is in the midst of an attentional blink (AB). Participants identified 2 target letters embedded among distractor letters in a rapid serial visual presentation sequence. In some trials, a square frame was inserted between the targets; as the only geometric object in the sequence, it constituted a singleton. Capture effects obtained when the AB was most severe and when it was over were compared. There were 3 main results. First, capture occurred even when the AB was crippling, suggesting that a singleton exogenously engaged attention even when processing of a previous target was continuing apace. Second, when the singleton contained the key target feature, capture effects were clearly manifest. Third, even when the singleton did not possess the key target feature, it still succeeded in capturing attention, although the effects were both feeble and fleeting. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

16.
通过对铁矿山机修系统的工作性质、工艺特点和成本构成等的分析,揭示了目标成本管理在矿山机修的成本管理中推广应用的重要意义。同时还论述了在目标成本计划的实施过程中,进行有效控制的方法和程序,纠正偏差与异常因素,使成本指标与生产中的实际消耗协调一致,并最终达到目标成本管理的要求,创造出铁矿山机修系统最低的成本,最大的产出和最好的效益。  相似文献   

17.
This research was concerned with tracking a remote target moving in depth. A 3-D television system provided visual feedback, and direct and aided pursuit tracking systems were evaluated as a function of target speed. The stereoscopic display was shown to be generally satisfactory for remote-control operations, although some fatigue or "eyestrain" was reported, probably due to the optics of the system. Contrary to previous tracking studies on nondepth courses, it was shown that on a depth course direct tracking is consistently superior to aided tracking at the 3 target speeds used. Amplitude of error analysis provided answers concerning what Ss do when not on target. Tracking behavior was interpreted in terms of the sensory-feedback mechanisms governing the control of motor patterns. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

18.
Object substitution masking (OSM) is typically studied using a brief search display. The target item may be indicated by a cue/mask surrounding but not overlapping it. Report of the target is reduced when mask offset trails target offset rather than being simultaneous with it. We report 5 experiments investigating whether OSM can be obtained if the search display is on view for a period of up to 830 ms but cueing of the target location is delayed. The question of interest is whether OSM must reflect the initial response of the visual system to target onset or whether it can arise in other ways, possibly during the transition from a pre-attentive representation of the target item to an attentional representation of it. Our results show that OSM decreases in strength as target duration increases. An explanation is suggested in terms of the object individuation hypothesis (Lleras & Moore, 2003). (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

19.
Determined whether a sensorimotor or cognitive encoding is used to encode a target position and save it into iconic memory. The methodology consisted of disrupting a manual aiming movement to a memorized visual target by displacing the visual field containing the target. The target was presented either centrally or in the right periphery. Participants moved their hand from the left to the right of fixation. The visual field was either stationary throughout the trial or was displaced to the right or left at the extinction of the target or at the start of the hand movement. Results showed three major effects: (1) Vision of the hand during the gesture improved the final accuracy; (2) visual field displacement produced an underestimation of the target distance only when the hand was not visible during the gesture and was always in the same direction displacement; and (3) the effect of the stationary structured visual field on aiming precision when the hand was not visible depended on the distance to the target. These results suggest that a stationary structured visual field is used to support the memory of the target position. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   

20.
新经济虽然以其神奇的发展速度和巨大的赢利潜力而独具魅力,但是它的辉煌却时刻也离不开传统产业和经济制度的支持。虚拟经济能有效地配置资源,分散、规避市场风险并通过财富效应,刺激需求,推动实体经济的增长。江铜集团坚持走传统经济与新经济相结合的道路大力发展虚拟经济,实行虚实并举,充分利用期货市场“发现价格、套期保值”的功能来规避风险,确保企业实现目标利润。  相似文献   

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