有关昆仑山口西8.1级地震及其余震活动趋势的讨论

在处理了部分有关资料的基础上 ,从发震断层旋性、历史地震类比、地震活动图像变化和地震序列特征等多方面对昆仑山口西 8.1级地震的余震活动趋势进行了讨论 ,结果表明 :本次 8.1级地震的最大余震震级可能为 6级左右     

脱硫灰的综合利用

随着烟气脱硫技术在我国的大规模展开，由此产生的大量脱硫灰的应用成为非常紧迫的任务。分析了脱硫灰的性质，并将其与粉煤灰和高钙粉煤灰进行了性能比较，同时对脱硫灰的排放方式及应用现状进行了分析，表明作为脱硫副产物的脱硫灰是可以变废为宝、综合利用的，加速开发脱硫灰的利用途径是非常必要的。     

松花江有机污染物的污染特征研究

松花江地处寒冷地区,每年冰封期长达5个月之久,其环境污染特征与国内其它大江河有着明显的不同.冰封期有机毒物污染加重是松花江最重要的环境污染特征;松花江流域存在着工业企业的点源污染和地表径流带来的面源污染,研究表明,松花江流域的有机毒物污染是以点源污染为主;有机毒物对江水中CODMn的贡献值极小,甚至不产生贡献.江水中CODMn值不能反映出有机毒物的污染状况.     

铁岭台数字形变短期异常与地震的关系探讨

本文应用铁岭地震台数字形变资料，对松辽盆及其附近地区4次中强震前的异常特征及其异常特征与上述4次地震的关系进行了分析，同时对地震前出现的异常时间、幅度、形态进行了研究。     

具反硝化能力的氢细菌特性及其应用

系统地将具有反硝化能力的氢细菌基本特性作了总结，并讨论了其生物膜的培养方法和其在水处理上的应用。     

河南省洼村粘土矿床地质特征及成因探讨

本文论述了洼村粘土矿床地质特征，成矿模式。根据成矿物质来源等方面研究，认为含矿岩系的物源主要来自碳酸盐岩的红土风化壳。矿床是在海侵过程中风化壳解体，经搬运、沉积、成岩及表生作用形成。     

粉煤灰改性吸附材料的研究

分析了粉煤灰改性的物质基础，阐述了当前改性的主要方法，在此基础上，笔者用燃烧、Na(OH)2溶液改性粉煤灰制得类沸石吸附剂的比表面积为112.6m^2／g、孔隙率为83.1％，是改性前的40.22和1.67倍。用此类沸石吸附剂来处理浓度为200mg／1的模拟含铅废水，去除率为84．87％、吸附容量为33.94mg／g，分别是改性前的31．13、3.13倍，处理效果优于市售一级活性炭。并用0.1M的HCl溶液和饱和NaCl溶液再生此吸附剂，解吸率达到了98％以上，此再生的类沸石吸附剂处理含铅废水的去除率也达到了83％以上。另外也研究了用酸改性粉煤灰来处理造纸废水，并设计了工艺流程、确定了工艺参数，处理效果令人满意。最后提出了当前应用改性粉煤灰处理废水和废气中存在的问题及今后研究的重点。     

牡丹江流域水环境质量状况及特征分析

牡丹江流域是松花江水系的重要组成部分,近年来随着流域经济的不断发展,水环境污染和水资源短缺问题日益严重,本文从水环境出发,以环境与经济协调发展为目标,对牡丹江水流城环境质量进行分析研究,本文作者结合自身的实际工作,评价了牡丹江流域的水环境质量,并指出了牡丹江流域水环境污染特征.为制订合理的治理方案,并有重点、有计划、有目标地推进污染源的整治工作具有现实意义,同时对研究牡丹江流域水环境的可持续发展具有重要的实用价值和指导意义.     

三台核桃结实特性研究

研究表明:草果核桃是优良的栽培品种,早熟核桃结实性状表现最差;果枝粗是影响座果率的最重要性状。     

Sex pheromones and their potential role in the evolution of reproductive isolation in small ermine moths (Yponomeutidae)

Summary Sex pheromone communication in the nine European species of small ermine moths (Yponomeuta) is reviewed in regard to the potential role of pheromones in the speciation process. Six of the nine species studied (viz.,Y. evonymellus, Y. cagnagellus, Y. padellus, Y. irrorellus, Y. plumbellus, andY. vigintipunctatus) use a mixture of (E)-11-and (Z)-11-tetradecenyl acetate in different ratios as primary pheromone components, with combinations of tetradecyl acetate, (Z)-9-tetradecenyl acetate, (Z)-11-hexadecenyl acetate and the corresponding alcohols of the acetates as additional pheromone components. Analysis of (Z)- to (E)-11-tetradecenyl acetate ratios produced by individual females of these species demonstrated significant variation among females of all species. However, the ranges of ratios produced byY. cagnagellus, Y. irrorellus, andY. plumbellus, sharing the same host-plant species, spindle tree, did not overlap. Niche separation of all six species mentioned required consideration of at least one additional pheromone component or of temporal aspects. The remaining three species,i.e. Y. malinellus, Y. mahalebellus andY. rorellus, have pheromones that differ qualitatively.Biosynthetic routes to the pheromone components identified are proposed on the basis of fatty acid pheromone precursors found in the pheromone glands. A phylogenetic tree for the genus is constructed based on allozyme frequency data and changes in pheromone composition are superimposed on this tree. We suggest that the ancestral ermine moth pheromone is a mixture of (Z)-11- and (E)-11-tetradecenyl acetate and the corresponding alcohols, and a scenario of how present-day patterns evolved is outlined. The pheromone differences among the three species using spindle tree as their host-plant might have evolved throughreproductive character displacement upon secondary contact between populations that had already diverged genetically in allopatry. Pheromone differences within the so-calledpadellus-complex (includingY. cagnagellus, Y. mahalebellus, Y. malinellus, Y. padellus, andY. rorellus) in which species might have originated sympatrically, may have evolved byreinforcing selection as these species still hybridise and produce viable offspring when confined in cages. The role of pheromones in reproductive isolation amongYponomeuta species is emphasised by (1) the function of pheromone components of some of the species as behavioural antagonists to other species, (2) the cross-attraction under experimental conditions between allochronic species with similar pheromones, and (3) the formation of hybrids in the laboratory between species that are isolated in nature by pheromone differences.