新一代即时战略游戏——《黑暗王朝》

随着“C＆C”在全世界掀起了即时战略的热潮,各大公司也看准卖点纷纷推出了自己的产品以占领市场。著名的Activison公司推出的《黑暗王朝》是其中的姣姣者之一,在德国和澳洲两地均为卖座冠军,世界总销售已突破40万拷贝。它打破传统即时战略的老风格,开创了有自己风格的新纪元。 《黑暗王朝》不但保留了传统即时战略中(探险(Exploration)、开发(Exploloition)、扩张(Expansion)以     

Novel technology of purification of copper electrolyte

The effects of arsenic with different valence states on the purification of copper electrolyte were studied and a novel technology of purification of copper electrolyte by copper arsenite was proposed. The results show that the purification performance of As（Ⅲ） compounds is better than that of As（Ⅴ） compounds. The purification technology by copper arsenite has the advantages of simple operation, high purification performance and low cost in comparison with other technologies and its appropriate purification conditions are that copper arsenite concentration is 18 g/L, reaction temperature is 65 ℃ and reaction time is 8 h. The removal rates of Sb and Bi are 53.22% and 58.67% respectively under these conditions. The purification principle show that a kind of yellow precipitate mainly composed of arsenic, antimony （ Ⅴ ）, bismuth and oxygen forms in electrolyte after copper arsenite is added, and consequently antimony and bismuth are removed from electrolyte.     

Geochemical Characteristics of Sedimentary Manganese Deposit of Guichi, Anhui Province, China

The sedimentary manganese deposits occurring in Gufeng formation of the Permian in Guichi area, south Anhui Province, include manganese carbonate deposit formed by sedimentation, and manganese oxide deposit made by later oxidation. The total REE contents of these samples are relatively low ( ＜ 250 × 10-6), belonging to LREE-enriched type,showing LREE enrichment during the process of formation of Mn deposit, especially during Mn-oxidizing process. Three normalized REE patterns and SCNA-normalized trace elements spider diagrams of the Mn-bearing sequence rocks and ores in this area reflect their same origin of ore sources, which is similar to rock-forming and ore-forming conditions. The Mnforming materials primarily came from the continent with higher mature degree and single material source. The δEu and δCe negative anomaly and Ce anomaly ( ＜ - 0.1 ) manifest that Mn-bearing sequence of the Permian was mostly formed in marine basin and oxidative environment. The Sr and Ba anomaly, Sr/Ba and Co/Ni values reflect the Mn deposit environment was of deep water and high-salinity of marine facies. Although the Ce/La (mean 1.05), Y/Ho (25 ～ 41.5) and trace metals show a variety of correlations with Mn in the ten rock samples, which show multiple sources for the manganese, the analysis of geochemical characteristics indicate that the material sources of Mn deposit have been primarily terrestrially derived. Another source of the manganese probably comes from the seafloor volcanism in this area. Analysis of sedimentary features and geohistoric evolvement reveals that the maximum transgression of the Qixia Period, ore district is then in deep shelf-basin sedimentary setting and the Mn-bearing sequence is deposited.     

精密电能表检定装置扩展不确定度分析

文章介绍了三相电能表检定装置扩展不确定度的分析与计算方法，指出：误差分析的关键是如何确定扩展不确定度。     

制冷过程的断水及超压报警

制冷过程中冷却水断水及氨压机出口压力超压，会造成制冷设备全线停车的重大事故。采用测量冷冻盐水泵出口压力间接测量断水并报警及直接测量氨压机出口压力超压并报警的方案，简单可行，应用效果也好。     

工程竣工造价结算审核策略探究

工程竣工造价结算审核是工程造价结算的必要途径,通过工程竣工造价的结算可以科学合理的掌握整个工程的造价,提升建筑公司的核心竞争力,也能节约成本。目前我国工程竣工造价结算审核还处于发展阶段,有很多还待完善的地方．．本文中笔者将从理论和实践两个方面,对工程施工阶段的造价预算特点,以及工程竣工造价结算审核的特点的分析,对工程竣工造价结算审核策略提出一些建议和意见,希望对我国的工程竣工造价结算审核的健康发展有所帮助。     

头台油田套损井压裂工艺技术试验

为了提高头台油田的开发效果，完善注采系统，分析研究了套损井在压裂工作中存在的难点及施工的风险性，针对M60-92及M62-90套损井的情况，通过采取在压裂措施前进行大修改造、优化压裂工艺设计、精心组织压裂施工现场等措施，修复了这两口套损井且压裂成功，为以后的修井工程开辟了新的思路。     

语音系统的组成及在水情监测中的应用

介绍了利用电话语音通讯卡、Sybase数据库及ODBC构建水情监测控制系统中实时水情播报服务子系统的具体步骤及相关注意事项。     

扫描隧道显微镜的一种新模式

本文提出了扫描隧道显微镜(STM))在高隧道电压区(Fowler-Nordheim区)工作的一种新模式——恒流和极大电导率(CCMC)模式。分析和计算表明,由此得到的CCMC图象能给出不依赖于表面功函数变化及表面局域态密度结构的表面形貌图,同时还能给出表面局域功函数分布图。最后对CCMC图象的分辨率和适用范围作了讨论。     

芡实壳提取物抗氧化能力研究

研究芡实壳不同提取物的抗氧化能力。测定不同芡实壳提取物溶液对超氧阴离子自由基、羟基自由基、DPPH自由基的清除率,还原能力,抗脂质过氧化活性以及对羟基自由基引起的DNA损伤的保护作用。结果显示,芡实壳提取物溶液能清除超氧阴离子自由基、羟基自由基、DPPH自由基,有还原能力和抗脂质过氧化活性,对羟基自由基引起的DNA损伤有保护作用,说明芡实壳提取物具有抗氧化能力。