Vocal acrobatics in a Chinese frog, <Emphasis Type="Italic">Amolops tormotus</Emphasis>

Although amphibians are highly vocal, they generally emit only a limited number of acoustic communication signals. We report here the extraordinarily rich vocal repertoire of Amolops tormotus, a ranid species in China. These frogs produce countless vocalizations, some of which share features of birdsong or primate calls, e.g., ultrasonic frequency components, multiple upward and downward FM sweeps, and sudden onset and offset of selective harmonic components within a call note. Frame-by-frame video analysis of the frog's calling behavior suggests the presence of two pairs of vocal sacs that may contribute to the remarkable call-note complexity in this species. Electronic supplementary material to this paper can be obtained by using the Springer LINK server located at http://dx.doi.org/10.1007/s00114-002-0335-x.     

酱油、米醋、大豆水解蛋白等废水治理方案研究

某公司主要从事酱油、米醋、大豆水解蛋白等食品的生产,根据酱油、米醋、大豆水解蛋白废水有机物浓度较高,可生化性好的特点,选择了"UASB系统 接触氧化法"二级处理工艺.UASB厌氧处理工艺去除了大部分有机物,减轻了后续接触氧化处理工艺的处理压力,达到较好的处理效果.运行结果表明,经该工艺处理后,废水中的COD、BOD5等指标均能达标排放,有利于企业的可持续发展.     

含硫污水系统耐蚀材料的筛选与应用

针对西北地区一综合炼油厂含硫污水管线的严重腐蚀问题，分析了腐蚀原因，确立了材料筛选方案，通过实验室静态挂片试验绘制了重量损失率变化曲线和现场挂片等试验手段，筛选推荐出了树脂玻璃钢耐蚀材料。工业生产应用结果表明，MFE-2型树脂玻璃钢是适用于该厂含硫污水系统的耐蚀材料，为类似装置的长周期运行提供了借鉴和经验。     

脱硫石膏综合利用现状及其抹面材料的研制

概述了目前有关脱硫石膏性能及其利用的研究现状，研究开发了建筑用脱硫石膏抹面材料，此种材料经性能检测，其抗压强度、抗折强度分别达到4．5MPa、17．5MPa，且粘结性能优良，为脱硫石膏的再生利用提供了另外一条有效的途径。     

“十五”期间沈阳市经济发展与环境保护的相互促进分析

论述了沈阳市“十五”期间经济发展及能源消耗的变化趋势,在阐述城市建设对环境保护的促进作用及“十五”期间沈阳市环境质量变化趋势的基础上,对沈阳市经济发展与环境质量的相互促进进行了分析。     

抓源头治理是落实“两控区”2000年初期目标的优先选择

针对我国煤中硫分赋存状况,抓源头治理,分别对高硫煤,中硫煤和低硫煤采取不同对策,切实有效地实现“两控区”２０００年的初期目标。     

Inventory of emissions from major air pollutant categories in Turkey

In this study, an inventory of air pollutant emission estimates from major air polluting sources in Turkey for period between 1985 and 2005 with 5-year intervals were estimated. Inventory covers anthropogenic sources of five major air pollutants of particulate matter, sulfur dioxide, carbon monoxide, nitrogen oxides and non-methane volatile organic compounds. Their break-down with respect to main activity sectors were shown and their distribution by the largest industrial source categories were worked out as annual estimates. This inventory and its analysis point to serious environmental implications of air pollutants and a need to develop a policy plan for reducing these emissions.     

λDNA体外重包装技术检测环境致突变物新方法及机理的研究

首次报道使用λＤＮＡ体外重包装技术检测化学物和环境污染致封变性取得了成功，辅以辅切和电泳技术，还可初步确定λＤＮＡ损伤的机遇。     

微电解法处理印染废水的研究

本文对微电解法处理印染废水进行了试验研究．对含有直接、活性和硫化染料的印染废水，ＣＯＤ去除率可达７０％以上，脱色率可达９０％以上．得出了电压、停留时间与处理效率和能耗之间的关系．试验说明，微电解法处理印染废水是一种高效、低耗、经济可行的方法．     

海域有机污染物优先排序和风险分类模糊评判系统

本文提出了对区域性有机污染物优先排序和风险分类和定量评判系统：模糊评判系统。该评判系统以反映污染物的毒性，暴露水平和环境化学性质的７项碜数为指标，通过指标参数的标准化及模糊运算，获得有机污染优先排序和风险分类的定量结果。