南非矿产资源与开发现状

南非矿产资源储量大,品种丰富,拥有许多优势矿种。近年来南非政府出台一系列的政策鼓励投资,在投资环境向好的情况下,南非矿业将迎来新的投资热情。     

基于MAPGIS的矿产资源规划数据库系统构建

为了满足矿产资源规划管理工作的信息化需要,建设国家、省、市、县四级规划管理信息化体系,根据国土资源部规划司制定的《省级矿产资源规划数据库标准》（试行稿）和一些相关标准,利用MAP-GIS和SQL Server对矿产资源规划进行了数据库的建库,实现了矿产资源规划数据的共享和互操作。     

地采矿山转露采的开采程式研究

为了回收原地采矿山遗留的隐患资源,建立了完善的地采矿山转露天开采方法体系,指导地采矿山转露天开采的平稳转型。针对采场下方存在原地采留下的采空区,露天开采前对存在较大安全隐患的大型空区和空区群进行前期集中治理以实现宏观露天开采环境再造,开采中对影响施工安全的局部区域的小空区和盲空区进行综合探测分析和崩落爆破处理以实现微观采场作业条件再造。并总结了地下开采转露天开采矿山生产组织和现场管理的要点,为实现地下开采转露天开采矿山空区治理与露天开采施工协同作业奠定基础。     

褐铁矿烧结成矿过程工艺矿相学研究

本文针对大宝山褐铁矿原料烧结,利用矿相显微镜查明了不同烧结时间,烧结温度和烧结碱度下各焙烧小团块的矿物组成与显微结构,揭示了褐铁矿烧结矿成矿的机理,找到了生成以针状铁酸钙为主粘结相的褐铁矿烧结矿的适合碱度、烧结温度及烧结时间,为褐铁矿低温烧结新工艺研究提供了理论依据。     

现代矿业企业新型安全管理系统构建

安全管理是矿山企业管理中的重中之重。本文结合当前我国矿业企业安全生产管理形势,阐述了如何从系统角度构建一个面向矿山企业长效安全管理需要的新型安全管理系统。     

某铁矿无底柱分段崩落法分段高度的确定

无底柱分段崩落法的分段高度直接影响矿山采切工程量及矿石损失贫化率,合理的分段高度能为矿山企业带来较大的经济效益。通过分析凿岩设备和矿体稳固性对分段高度的影响,得出限制本矿山分段高度的主要因素是矿体稳固性。参考国内相类似的矿山,并分析矿体稳固性对采场地压和凿岩爆破的影响,确定分段高度为12m。生产实践表明,12m的分段高度,钻孔效率高,成孔率高,爆破效果好,矿石损失贫化在合理的范围内。     

Antioxidant Activity,Total Phenolic Content and Selected Physicochemical Properties of White Mulberry (Morus Alba L.) Fruits

In this study, total phenolic content, antioxidant activity, mineral content and selected physicochemical properties of three white mulberry phenotypes (Morus alba L.) grown in Turkey were measured. Moisture, total soluble solids, total sugar, sucrose, reducing sugar, protein, ash, pH, titratable acidity, color (L, a, b), vitamin C, total phenolic, antioxidant activity of fruits were determined between 72.85–79.75 g/100 g fresh fruit, 21.25–28.50 g/100 g fresh fruit, 12.18–17.02 g/100 g fresh fruit, 1.57–4.36 g/100 g fresh fruit, 9.42–15.46 g/100 g fresh fruit, 0.82–0.89 g/100 g fresh fruit, 2.20–2.65 g/100 g fresh fruit, 5.70–5.86, 0.25–0.28 g/100 g fresh fruit, 31.24–68.69, ?2.46 to 15.68, 4.58–21.74, 10.15–21.50 mg/100 g fresh fruit, 18.16–19.24 μg gallic acid equivalent/mg of sample, and 33.96–38.96%, of sample respectively. Fruits were generally found high in P and low in Ca.     

流体包裹体在矿床学研究中的应用

流体在热液矿床的形成过程中扮演着至关重要的角色,而流体包裹体由于其在矿物晶体中出现的广泛性以及在后期地质作用过程中的稳定性,成为研究原始成矿流体最理想的代表。对其进行温压和成分测定,同位素示踪及定年等研究能够很好地解决矿床学中的许多重要问题。简要介绍了流体包裹体在矿床学研究中确定成矿温压条件、推断成矿和剥蚀深度、分析成矿流体成分、反映成矿体系环境（pH 和 Eh）、判别成矿物质来源、厘定成矿时代及划分矿床类型这七个的方面基本原理,并举例进行说明。     

2种方法检测食品模拟物中矿物油含量的比较研究

目的 考察离线固相萃取-气相色谱-氢火焰离子化检测器法(off-line solid phase extraction-gas chromatography-flame ionization detector,off-line SPE-GC-FID)与高效液相色谱-气相色谱-氢火焰离子化检测器在线联用法(on-line...     

Carcass performance and meat mineral content in Balouchi lamb fed pistachio by-products

This experiment investigated the effect of pistachio by-products (PB) in the feed of weaned Balouchi lambs on their daily gain, carcass traits and on the levels of Ca, Zn, Fe and Cu of Longissimus dorsi muscle. Twenty eight male lambs were divided into four groups with 7 lambs each and fed separately for 90days. The first group (control) was fed a commercial concentrate, and the second, third and fourth (test) groups received diets in which 10, 20 and 30% PB was used in partial replacement of alfalfa hay and beet pulp. The results showed that the high level of PB had no effect on performance and carcass traits. There were no significant differences between groups in mineral content in Longissimus dorsi muscle. These results suggested that PB can be use in diet of fattening lambs up to 30% without any adverse effects on carcass performance and mineral content of lamb meat.