闽台地区震前电磁辐射和自然电位特征的研究

闽台地区震前电磁辐射和自然电位特征的研究陈宝华黄声明杨德荣（中国福州３５０００３福建省地震局）主题词电磁辐射水库地震自然电位闽台地区福建省现有自然电位台站２个、电磁波测点５个（图１）,基本情况见表１．厦门测点离市区较近,干扰背景大,所以仪器灵敏度较...     

清痹膏联合非布司他治疗急性痛风性关节炎35例临床观察

目的：观察清痹膏联合非布司他治疗急性痛风性关节的临床疗效。方法：将70例急性痛风性关节炎患者随机分为治疗组和对照组,每组各35例。对照组予双氯芬酸钠缓释片合非布司他治疗,治疗组予清痹膏外敷合非布司他治疗。结果：总有效率治疗组为94.3%,对照组为85.7%,2组比较,差异有统计学意义（P＜0.05）;2组疼痛视觉模拟评分（VAS）、尿酸（UA）、红细胞沉降率（ESR）、C反应蛋白（CRP）治疗前后组内比较,差异均有统计学意义（P＜0.05）,但治疗后组间比较,差异无统计学意义（P＞0.05）;2组不良反应发生率比较,治疗组优于对照组,差异有统计学意义（P＜0.05）。结论：清痹膏可有效缓解急性痛风性关节炎患者的关节疼痛,且不良反应较少,值得临床推广应用。     

Effect of copper on the growth of shrimps Litopenaeus vannamei: water parameters and copper budget in a recirculating system

Shrimps( Litopenaeus vannamei) were intensively cultured in a recirculating aquaculture system for 98 days to investigate effects of 0.3 mg/L Cu on its performance, Cu budget, and Cu distribution. Shrimps in Cu-treated systems had greater mean final weight(11.10 vs 10.50 g), body length(107.23 vs 106.42 mm), survival rate(67.80% vs 66.40%), and yield(6.42 vs 5.99 kg/m 3), and lower feed conversion ratio(1.20 vs 1.29) than those in control systems but the differences were not significant. Vibrio numbers remained stable(10 4 –10 6 colony forming units/mL) in the rearing tanks of both control and treated systems. Total ammonium-N, nitrite-N, nitrate-N, pH, chemical oxygen demand, 5-day carbonaceous biochemical oxygen demand, and total suspended solids were similar in controls and treatments. Dissolved Cu concentration in the treated systems decreased from 0.284 to 0.089 mg/L while in the control systems it increased from 0.006 2 to 0.018 mg/L. The main sources of Cu in the treated systems were the artificially added component(75.7% of total input), shrimp feed(21.0%), water(2.06%), and shrimp biomass(1.22%). The major outputs of Cu occurred via the mechanical filter(41.7%), water renewal(15.6%), and draining of the sediment trap(15.1%). The foam fractionator removed only 0.69% of total Cu input. Harvested shrimp biomass accounted for 11.68% of Cu input. The Cu concentration of shrimps in the Cu-treated systems(30.70 mg/kg wet weight) was significantly higher than that in control systems(22.02 mg/kg). Both were below the maximum permissible concentration(50 mg/kg) for Cu in seafood for human consumption in China. Therefore, recirculating systems can be used for commercial on-growing of Litopenaeus vannamei without loss of shrimp quality, even in water polluted by 0.30 mg/L Cu. The mechanical filter is the main route for Cu removal.     

复杂金矿样品制样方法的试验研究

通过某金矿床矿石样品加工流程试验,制定出新的样品加工流程和制样方法,将细磨圆盘机改为棒磨机,将样品缩分从60目改为80目,使样品的均匀度和代表性大大提高;在制样过程中将样品的焙烧设计为两阶段,可以较好地分解金属硫化物及砷化物,形成易溶化合物,同时可有效除去样品中的S、As、C等杂质。为了使载金矿物充分溶解,选取了7种溶样方案进行了试验,结果显示用第一个方案分析的金矿样品质量明显提高。     

四维剥蚀地貌的计算机模拟

该文根据戴维斯山地演化模型，推导了四维剥蚀地貌的数学模型，阐述如何基于这个数学模型，采用计算机模拟四维剥蚀地貌，最后详细介绍两个四维剥蚀地貌的计算机模拟实例。     

低涡移动发展的预报

统计分析了影响周口地区的低涡移动发展的特点，并建立了低涡移动发展的预报方法。     

关于墨脱地区的一组试题

2010年12月15日,西藏墨脱公路控制性工程——嘎隆拉隧道顺利贯通。墨脱人民世代被茫茫雪山所阻隔的历史终于结束。嘎隆拉隧道是墨脱公路的控制性工程．施工隧道气象条件恶劣,穿越多条地质断裂带,岩体破碎,涌水量大,地质构造、水文地质条件极其复杂。     

新一代天气雷达台站环境监控系统设计与实施

根据雷达站运行环境因素、附属设备等,设计并实施了新一代天气雷达台站环境监控平台,实现了新一代天气雷达站级环境状态远程在线监控,对环境恶化、附属设备运行参数超限或不正常等问题进行及时手机报警,从而保证雷达运行环境设备能够稳定可靠运行,有效消除雷达故障隐患,减少雷达故障发生.     

石油开发污染物毒性监测的实验生物筛选Ⅰ：钻井泥浆对水生？…

用静水式试验方法评价和比较了两种钻井泥浆的水可溶部份对斑节对虾仔虾,罗氏沼虾仔虾,虾虎鱼和剑尾鱼等４种水生动物的急性毒性。结果表明：泥浆水溶性成分对斑节对虾仔虾,罗氏沼虾仔虾,蚜虎鱼和剑尾鱼的半数致死浓度均明显大于１００００ｍｇ／Ｌ（１％）,但斑节对虾仔虾对泥浆水可溶性成份的敏感性高于其余３种动物,适于钻井泥浆毒性试验。     

试论板块构造与大陆构造的关系

板块构造理论问世已近30年了,近30年的实践充分显示了板块构造理论的生命力和平远影响。但是板块构造理论的基础资料来自大洋,而现在所知,大洋只不过两亿年的历史,大陆却保存有40亿年以来地壳和岩石圈演化的丰富和完整的资料,况且目前人类生活、生存和发展的领域主要在大陆。所以板块构造如果不与大陆构造紧密结合,则有很大的片面性,并将失