泰安台形变数字与模拟资料对比研究

泰安台是“九五计划”全国第一个数字化改造台站，改造了水管仪，又增添了伸缩仪、数字水平摆、垂直摆三种仪器，数字化改造已运行了六年多。本文利用四套仪器数字与模拟资料从漂移量、潮幅因子、记录精度、年变曲线进行对比研究，得出数字仪器代替模拟仪器的可行性。     

建立地震动物试验场推进地方地震事业发展

本文介绍了地震动物试验场建立、动物观测、数据处理和饲养管理等方面的工作,为动物习性异常与地震关系的研究积累了可贵的观测资料,对于动物的行为异常预报地震具有一定的参考价值。     

航母舰载机用高强、高韧、耐蚀不锈钢

介绍了美国采用低成本、基于计算的材料设计技术,研制出既能取消有毒的防护涂覆工艺,又能作为结构载体用的Ferrium(R) S53高强、高韧耐蚀不锈钢.Ferrium(R) S53不锈钢可以"非正式地"替代通常用于制造航母舰载机结构部件的非不锈钢.美军在新的航母舰载机合金研制中借助QuesTek公司基于计算的材料设计工具,将显著地提升海军武器平台系统性能,改善系统安全性,减轻环境危害.     

石河子跨断层形变观测数字及遥测技术改造的探讨

石河子跨断层形变观测数字化、遥测技术改造，在充分利用原仪器设备的基础上，安装了一台多功能数字采集仪，两支温度传感器和车载电话（EDS），把MD4211BA型岩体变形测量仪和MD4．412B型浮子垂直变形仪更换为水平测量仪（DSG）和垂直测量仪（DFG），配备了形交观测专用的计算机，安装了地亮所研制的配套软件，真正实现了观测数字化遥测化的目标。     

思小高速公路高填深挖改桥隧方案的环境影响分析

结合思茅一小勐养高速公路沿线具体的自然环境，通过分析高填深挖路段的具体情况，对公路选线过程中遇到的高填深挖与桥梁、隧道方案的比选从生态设计的理念方面进行了具体的环境影响分析。得出该公路的高填深挖改桥梁、隧道方案能够有效地减小公路建设对西双版纳热带雨林区的牛态环境影响，较好的与周围的环境协调，与自然景观融为一体。     

Characterization of surface runoff from a subtropics urban catchment

Characteristics of surface runoff from a 0.14-km^2 urban catchment with separated sewer in Macau was investigated. Water quality measurements of surface runoff were carried out on five rainfall events during the period of August to November, 2005. Water quality parameters such as pH, turbidity, TSS, COD, TN, Zn, Pb, and Cu were analyzed. The results show that TN and COD are the major pollutants from surface runoff with mean concentration of 8.5 and 201.4 mg/L, both over 4-fold higher compared to the Class V surface water quality standard developed by China SEPA. Event mean concentration （EMC） for major pollutants showed considerable variations between rainfall events. The largest rainfall event with the longest length of antecedent dry weather period （ADWP） produced the highest EMC of TN, TSS and COD. From the pollutographs analysis, the peak concentration of TN precedes the peak runoff flow rate for all three rainfall events. The tendency of the concentration of TSS, turbidity and COD changing with runoff flow varies between rainfall events. The relationship between TSS and other parameters were analyzed to evaluate the efficiency of the physical treatment process to control the surface runoff in the urban catchment. Based on the correlation of parameters with TSS, high treatment efficiency of TSS, TN and COD was expected. The most significant event in term of first flush is the one with the strongest rainfall intensity and longest length of ADWP. TN always showed first flush phenomenon in all three rainfall events, which suggested that the surface runoff in the early stage of surface runoff should be dealt with for controlling TN losses during rainfall events.     

高风险建设项目的环境影响评价原则及方法

基于高风险建设项目环境影响的特点,探讨了此类项目环境影响评价工作的基本原则,并提出在类似项目的环境影响评价工作中应把握的基本内容和方法。     

Organochlorine pesticides in soils under different land usage in the Taihu Lake region, China

A field study was conducted in the Taihu Lake region, China in 2004 to reveal the organochlorine pesticide concentrations in soils after the ban of these substances in the year 1983. Thirteen organochlorine pesticides (OCPs) were analyzed in soils from paddy field, tree land and fallow land. Total organochlorine pesticide residues were higher in agricultural soils than in uncultivated fallow land soils. Among all the pesticides, ΣDDX (DDD, DDE and DDT) had the highest concentration for all the soil samples, ranging from 3.10 ng/g to 166.55 ng/g with a mean value of 57.04 ng/g and followed by ΣHCH, ranging from 0.73 ng/g to 60.97 ng/g with a mean value of 24.06 ng/g. Dieldrin, endrin, HCB and α-endosulfan were also found in soils with less than 15 ng/g. Ratios of p,p'-(DDD DDE)/DDT in soils under three land usages were: paddy field ＞ tree land ＞ fallow land, indicating that land usage inlfuenced the degradation of DDT in soils. Ratios of p,p'-(DDD DDE)/DDT ＞1, showing aged residues of DDTs in soils of the Taihu Lake region. The results were discussed with data from a former study that showed very low actual concentrations of HCH and DDT in soils in the Taihu Lake region, but according to the chemical half-lives and their concentrations in soils in 1980s, the concentration of DDT in soils seemed to be underestimated. In any case our data show that the ban on the use of HCH and DDT resulted in a tremendous reduction of these pesticide residues in soils, but there are still high amounts of pesticide residues in soils, which need more remediation processes.     

密封消解法测定高盐废水COD时的最佳实验条件选择

通过对密封消解法测定高盐废水COD的消解时间、氧化剂浓度、掩蔽剂比例等实验条件研究 ,确定了适合高盐废水COD测定的最佳实验条件 ,并用混配水样和实际水样进行验证。研究结果表明 :消解时间为 30min ,掩蔽剂比例为 10 1,对不同范围的COD采用不同浓度的氧化剂 ,混配水样和实际水样中的氯离子对COD测定干扰很小 ,方法的准确度较好 ,相对误差 <8 3% ,加标回收率 >92 %。     

Alterations of organ histopathology and metallolhionein mRNA expression in silver barb, Puntius gonionotus during subchronic cadmium exposure

Common silver barb,Puntius gonionotus,exposed to the nominal concentration of 0.06 mg/L Cd for 60 d,were assessed for histopathological alterations(gills,liver and kidney),metal accumulation,and metallothionein(MT)mRNA expression.Fish exhibited pathological symptoms such as hypertrophy and hyperplasia of primary and secondary gill lamellae,vacuolization in hepatocytes,and prominent tubular and glomerular damage in the kidney.In addition,kidney accumulated the highest content of cadmium,more than gills and liver.Expression of MT mRNA was increased in both liver and kidney of treated fish.Hepatic MT levels remained high after fish were removed to Cd-free water.In contrast,MT expression in kidney was peaked after 28 d of treatment and drastically dropped when fish were removed to Cd-free water.The high concentrations of Cd in hepatic tissues indicated an accumulation site or permanent damage on this tissue.