曝气生物滤池技术在工业废水回用处理中的应用

曝气生物滤池具有体积小、处理效率高等特点。研究结果表明,曝气生物滤池使用新型粒状填料处理工业废水,进水量240 m~3/d,水力停留时间3 h,COD,SS和BOD去除效果好,出水稳定达到国家《城市杂用水水质标准》,满足用户要求。     

历法在宋朝对外交往中的作用

历法在古代的政治活动中具有十分重要的意义，奉谁家正塑朋来就是表明政治态度的大是大非问题。处于多元交汇中的宋代，外交活动频仍，而历法在其中起了不容忽视的作用。本就历法在宋与辽、夏、金、南唐、大理、交趾等的交往中所起的作用作了探讨，分析了在不同层次的政治交往中历法所扮演的不同角色；颁赐历法，是实行统治的象征；改易历法，意味着政权之间关系的变化；历法之争，实质上是皇权地位的正统之争。     

粉煤灰活性测试方法研究

针对粉煤灰的传统分级评价指标(比表面积指标)，不能够完整反应出粉煤灰活性的问题，在室内通过大量实验对粉煤灰的活性测试方法及评价进行了研究。研究中选取了9种不同类型的粉煤灰，运用不同方法对活性进行了测试。在对比细度以及活性度指标基础上，提出了粉煤灰活性指数指标HH，该指标将粉煤灰的外部宏观细度控制指标(比表面积)及内部活性控制指标(活性度)有机地结合在一起。最后实测了HH与二灰砂砾早期强度之间的关系，强度试验结果表明，该指标能够用于评价粉煤灰的活性，并且测试方法简单，利于推广应用。     

隐性缺铁婴幼儿脑功率谱及脑地形图变化研究

采用严格配对的研究方法，对２０对６～３０个月隐性缺铁（ＬａｔｅｎｔＩｒｏｎＤｅｆｉｃｉｅｎｃｙ，ＬＩＤ）婴幼儿进行了脑功率谱和脑地形图分析。结果显示ＬＩＤ患儿在右后顶部、左中后颈、右中颞及前中央顶部α１能量减低，提示ＬＩＤ患儿大脑发育比正常组婴幼儿落后。     

A~2/O工艺处理天津天铁炼焦化生产废水工程实例

介绍了A~2/O法处理焦化废水的一个实例。介绍了天铁焦化公司生产废水的来源、处理现状,工艺流程及运行现状,并针对工艺现状提出了具体改进措施。     

中国铁路运输成本计算系统的研究

在中国铁路运输成本计算系统（ＣＲＣＳ）中，将铁路运输生产过程划分为发送、中转、运行和到达４个作业环节，并通过确定作业量以及对应的单位变动支出计算铁路运输成本。此外，对运输成本信息的运用以及计算机实现进行了讨论。     

The small-sized benthic biota of the Håkon Mosby Mud Volcano (SW Barents Sea slope)

R/V POLARSTERN expedition ARK XVIII/1 in summer 2002 provided the opportunity to carry out a sampling programme to assess the activity, biomass and composition of the small-sized benthic biota (size range: bacteria to meiofauna) around the active mud-oozing and methane-seeping Håkon Mosby Mud Volcano (HMMV) on the SW Barents Sea slope, Northern North-Atlantic. A total of 11 stations, covering different areas (e.g., bacterial mat sites, and pogonophoran fields) within the crater, and sites outside the caldera were sampled using a multiple corer. Subsamples were analyzed for various biogenic compounds to estimate the flux of organic matter to the seafloor (sediment-bound chloroplastic pigments indicating phytodetritus), activities (bacterial exo-enzymatic turnover rates) and the total biomass [from bulk parameters, like phospholipid (PL) concentrations in the sediments] of the smallest sediment-inhabiting organisms (range: bacteria to meiofauna). Direct investigations of bacterial numbers and biomasses as well as on meiofauna densities and composition completed our investigations at HMMV. As expected for a comparable small deep-sea area with only minor disparity in water depth between sampling sites, our investigations revealed generally no significant differences in organic matter input from phytodetritus sedimentation between sampling sites inside and outside HMMV. Bacterial exo-enzymatic activities as well as total microbial biomass (TMB) and meiofauna densities, however, exhibited generally higher values at HMMV, compared to sites outside the mud volcano. Enhanced benthic life at HMMV is based on chemosynthetic processes, making the mud volcano a “chemosynthetic oasis” in an otherwise oligotrophic deep-sea environment. As we did not find any indication for bacterial symbioses in the meiofauna, comparably rich meiofaunal assemblages at HMMV are presumably indirectly related to a general enhanced biological production.     

电力牵引工频高压电磁场对人体视—运动反应时的影响

通过对我国电力牵引达２２年区段的２７．５ｋＶ工频电场强度为１．７５－３．４６ｋＶ／ｍ，磁感应强度为０．６０－１．７５ｍＴ，人体感应电流为１０．０８－５８．４０μＡ环境下作业的１３５９名工人和无电磁场接触史的３７５名工人的视－运动反应时值进行的测验和分析。结果表明两组无明显差异。引起视－运动反应时值的延长。结果表明两组无明显差异，引起视－运动反应时值的延长，机体协调功能减退的主要原因是年龄因素的增长     

原发性肾病综合征患儿T细胞亚群及其抑制性细胞活性

本文检测了37例原发性肾病综合征患儿的外周血T淋巴细胞亚群和刀豆素A诱导的抑制细胞活性水平。结果显示,肾病患儿初发时就存在抑制性T细胞数量及功能的减低,并随着激素治疗及病情的好转而恢复正常,提示本病的免疫调节失衡可能是一原发性改变,在肾病发病机理中起一定的作用。     

Modeling household interactions in daily in-home and out-of-home maintenance activity participation

The activity travel patterns of individuals in a household are inter-related, and the realistic modeling of activity-travel behavior requires that these interdependencies be explicitly accommodated. This paper examines household interactions impacting weekday in-home and out-of-home maintenance activity generation in active, nuclear family, households. The in-home maintenance activity generation is modeled by examining the duration invested by the male and female household heads in household chores using a seemingly unrelated regression modeling system. The out-of-home maintenance activity generation is modeled in terms of the decision of the household to undertake shopping, allocation of the task to one or both household heads, and the duration of shopping for the person(s) allocated the responsibility. A joint mixed-logit hazard-duration model structure is developed and applied to the modeling of out-of-home maintenance activity generation. The results indicate that traditional gender roles continue to exist and, in particular, non-working women are more likely to share a large burden of the household maintenance tasks. The model for out-of-home maintenance activity generation indicates that joint activity participation in the case of shopping is motivated by resource (automobiles) constraints. Finally, women who have a higher propensity to shop are also found to be inherently more efficient shoppers.