储层岩石矿物成分对酸蚀裂缝导流能力的影响

储层岩石矿物成分是酸压改造效果影响因素之一。研究认为，在储层岩石矿物成分中易溶物的含量及分布方式决定了酸蚀裂缝导流能力大小，易溶蚀物的含量越多，岩石溶蚀速率越快。室内测试了不同溶蚀速率下的灰岩和白云岩的酸蚀裂缝导流能力，研究了岩石溶蚀速率、易溶蚀物含量对酸蚀裂缝导流能力的影响，对酸压工艺设计方案提出了指导性建议。研究结果表明，储层岩石溶蚀速率与酸蚀裂缝导流能力增加倍比存在抛物线关系，易溶蚀物占30%40% 时酸蚀裂缝导流能力保持较好。     

地方矿产资源规划研究的一般理论

矿产资源规划是保证矿产资源安全的重要措施。本文论述了地方矿产资源规划的产生原因、发展过程和要解决的基本问题,介绍了矿产资源规划的主要内容和编制方法。     

锌氧化矿及精矿中锌镉连续快速测定方法探讨

本法采用一次溶解试样,经分离干扰元素后,对锌和镉进行连续络合滴定,方法可行,对生产中的锌镉元素测定,能够满足要求,其分析误差在允差范围之内,终点明显,结果准确可靠。     

Gambling-related problems across life domains: an exploratory study of non-treatment-seeking weekly gamblers

This study uses content analysis to provide a qualitative exploration of how life roles are affected by frequent (i.e. at least weekly) gambling, based on in-depth interviews with a community sample of 161 non-treatment-seeking frequent gamblers. Over half (51.6%) of the participants indicated problems associated with gambling and 131 examples were identified. The majority of problems were relational (50.4%), followed by financial (19.8%), work (13.7%), and school related (8.4%). Slightly less than half of participants (41.7%) reported losses due to gambling and 92 examples were provided. The most frequently reported loss was identity related (54.3%), which included self-esteem/shame (38.0%), estrangement from family (34.0%), estrangement from friends (16.0%), and estrangement from work colleagues (6.0%). Additional losses included health (29.3%) and financial (8.7%). Almost two-thirds of participants (64.6%) reported difficulty concentrating in family (18.4%), work (16.8%), and school (9.6%) activities, whereas general concentration problems comprised an additional 48.8% of the examples provided. Half of participants (49.1%) discussed behavioral withdrawal due to gambling, which included withdrawal from work (44.3%), relationships (24.5%), school (15.1%), and personal (6.6%) activities. These findings paint a complex picture of how gambling interferes with different life roles for some frequent gamblers, identifying important areas for future research and practice.     

资源型工矿业城市的再就业问题——以唐山市为例

资源型工矿业城市的再就业问题与其他城市相比具有特殊性和解决的紧迫性与困难性。本文以唐山市为例 ,在分析资源型工矿业城市再就业的困境及形成原因的基础上 ,探讨了这类城市再就业难题的解困思路     

我国采矿权的法律属性及其反思

我国采矿权既具有物权属性又具有行政权属性,其原因是采矿权受到行政权的过度干预。采矿权本来是一项民事权利,但在我国,其产生完全受制于行政权。我国将开采矿产资源的民事权利(采矿权)与政府对矿产资源开采的管制(行政许可)混为一团,行政许可兼负了创立民事权利的职责。要解决这个问题,就要分清国家作为矿产资源所有者与作为矿产资源开采管理者的身份,将国家让与采矿权的民事行为与国家对企业开采矿产资源的行政许可行为分开。     

Economic Viability Among Post-Retirement Aged Women

Longer life expectancy has increased concern about living standards among elder women. This paper examines the relation between labor market status and living standard post-retirement. We use data from two national surveys to contrast economic circumstances of post-retirement aged and currently employed women. Financial resources of aged women and factors associated with their magnitude are identified. We examine current economic resources and employee benefits of women who will retire after the year 2000. The paper concludes with a discussion of proactive mid-life strategies for long-term economic stability among women, with emphasis on unique concerns, of black women.     

矿产资源代际配置的若干问题研究

本文阐述了矿产资源代际公平配置理念 ,探讨了公正储蓄率与真正储蓄内涵、提出了真正储蓄为非负的两个必要条件 ,分析研究了贴现率与矿产资源可持续利用的关系及调节资源利用贴现率的途径。     

中外矿业特许权设置的比较研究

行政特许权作为国外矿业管理基本方式的主要功能是矿业社会化.矿山企业利用互有资源体的优先、强势使用而容易产生经济负外部性,必须由政府进行严格而直接的事先管制,以保障所有权社会功能的发挥.在我国,行政特许的主要功能是分配稀缺资源.稀缺的矿产资源由行政机关根据权力的含量而不是价格的信号在市场外配置.对比中,能认识到我国行政特许权设置的错位和缺位,权利滥用、部门法封闭、特许物权设置、诸法合体是其主要原因.公权力职能转变、法制统一、目标明确是改革的关键.     

云南矿产资源地方立法探析

地方立法是我国立法体系的重要组成部分,矿产资源分布不均衡.使矿产资源地方立法在资源开发与保护、管理与利用中的作用显得更加重要.云南已形成了以云南省矿产资源管理条例为中心,由地方性法规、地方政府规章和民族单行条例构成的矿产资源法规群,但是仍要按可持续的科学发展观加以完善,对矿产资源实施资产化管理和资源化管理,实现地方立法的体系化.