由多频射电爆发探讨太阳白光耀斑的起源问题

从射电运动Ⅳ型爆发的特征和多频射电爆发开始时序的分析可以看出这个伴生的白光耀斑（ Ｗ Ｌ Ｆ） 和射电爆发同是由低日冕的加速电子激活,可能通过非热电子沉降能量于色球层, 产生了色球层压缩波, 又经二步能量传输过程在上光球层导致 Ｗ Ｌ Ｆ。通过对共生事件的分析, 并与已知的二类 Ｗ Ｌ Ｆ的观测特征作了比较, 提出该 Ｗ Ｌ Ｆ 可能属于二类的混合型, 并提出 Ｗ Ｌ Ｆ 可能存在射电辐射的必要条件     

Diatom-based transfer functions for western Quebec lakes (Abitibiand Haute Mauricie): the possible role of epilimnetic CO2 concentration in influencing diatom assemblages

Surficial sediments from 76 lakes from two western Quebec regions(Abitibi and Haute Mauricie) were sampled to identify the relationships betweendiatoms and environmental variables. Because the two regions containedradically different diatom communities, we then investigated which factors maybe responsible for the large community discrepancies in the two nearbygeographical areas. Standard lake chemistry variables showed little differencesbetween the regions, although epilimnetic light regimes were slightly lower inAbitibi. Nevertheless, lakes of the two regions with similar light regimes andchemistry still showed a clear separation in their diatoms, implying that otherimportant factors are influencing assemblages. We found that the calculatedconcentration of CO₂ in the open water can explain some of thediscrepancy in diatom assemblages. A pCCA constrained to the concentration ofCO₂ with alkalinity and pH as covariables explained 12.5% of speciesvariance and was significant. Given the lack of a relationship between DOC andCO₂, and because the lakes are heavily supersaturated withCO₂ in the calibration set, lake-to-lake variations inCO₂ concentrations are likely due to groundwater inputs; thepossibility that this environmental variable may be influencing diatomcommunities might allow, in some cases, the reconstruction of historicalchanges in groundwater inputs to lakes. Finally, new calibration models werebuilt in Quebec by using weighted averaging partial least square(WA-PLS) techniques in order to infer pH, CO₂, TP, TN, and, DOC fromdiatom assemblages preserved in the surface sediments.     

使用GMS数值化卫星资料估计梅雨锋降水的初步探讨

应用ＧＭＳ可见光和红外通道数值化资料，针对梅雨锋云系特点，选用云顶红外计数值、可见光计数值、红外计数值梯度等因子，用逐步回归法导得高层高积云、多层云和积雨云的降水与上述因子的关系。并将估计结果与理论、实测降水比较，表明该方法估计效果较好，采用云分类降水估计结果比无云分类的要好。     

岩石破裂中的光声效应

在实验室条件下研究了花岗岩样品受单轴压缩破裂过程中的光和声发射效应,所得可见光谱轮廓与空气分子的光谱相似,但具有能量高于紫光的成份。除在主破裂时有大的光脉冲和声发射外,在主破裂前也记录到弱的光脉冲,它们与大的声发射率有同步现象。     

Seasonal occurrence and growth of benthic algae in the Patos Lagoon estuary, Brazil

The seasonal occurrence of 94 benthic algal species, including Cyanophyta, was observed on a monthly basis over one year in the Patos Lagoon estuary (32°S, 52°W), Brazil, and showed three patterns of algal periodicity. An aseasonal group of 46 species was present throughout the year and two groups of 24 species each occurred either during summer and fall or winter and spring. The seasonal growth of 55 green, brown and red algae was correlated with monthly variations of salinity, water temperature, daylength and light radiation energy, which were measured daily in the estuary. Summer/fall peak growth was observed in 15 algae most of which correlated significantly with high salinities alone or in combination with other factors during this period. Growth peak of 11 species in winter/spring was principally a function of low water temperatures alone or together with a reduced light regime.Both periodicity of benthic algae and their seasonal growth, as a more sensitive measure of their floristic affinity, demonstrated the presence of cool temperate and tropical elements in this flora typical for warm temperate biogeographic regions. Correlations between seasonal variation of algal growth and selected environmental parameters aided in the evaluation of causal factors for algal seasonality.     

The Depth Limits of Red Sea Stony Corals: An Ecophysiological Problem (A Deep Diving Survey by Submersible)

Abstract. Along the Sinai coast of the Red Sea a deep diving survey with the research submersible GEO investigated the depth distribution of stony corals. 47 hermatypic species were identified below 50 m; 9 species extended below 100 m. Their depth distributions are related to light penetration. Observed changes in hermatype growth forms with depth were investigated and interpreted as photo-adaptations. 10 species of ahermatypic corals were found between 100–205 m. Ahermatype growth forms are adaptations to plankton feeding and do not change with depth.     

特征含水率对轻量土基本性质的影响规律

为了研究最优含水率、流动上、下限含水率对轻量土性能的影响,通过密度、无侧限抗压强度试验研究了混合土的工程性质。结果表明：采用流动性指标 控制混合土的流动性基本可行。混合土处于流动性上、下限含水率时,无侧限应力-应变关系曲线几乎重合,流动性上、下限含水率范围内土壤性质较为接近。无侧限抗压强度随含水率增加而衰减,但流动上、下限含水率对应强度差别不大。不管含水率高低,强度随龄期增长,都可以采用双曲线模型进行预测,并且总结了7 d、90 d强度与28 d强度之间的经验关系。当含水率为最优含水率时,混合土基本不收缩;在流动性上、下限含水率范围内,线收缩率范围为1.53%～4.71%,体积收缩率范围为4.53%～13.46%,收缩性受含水率、水泥剂量等因素影响。理想密度模型可以近似预测混合土的湿密度,高含水率时预测值有一定误差,误差范围为3.834%～8.231%。     

“照亮”地下

本文介绍利用地震角度偏移法实现照亮地下的理论构想,并做了大量的研究工作,说明地震波角度偏移法在地下空间探测中的巨大作用和应用前景.研究中利用仿生学眼睛的功能,阐述了照亮地下的理论和方法技术,特别研究了眼睛的形觉、光觉、色觉、立体觉与地下空间探测的对比关系.最后结合研究的实测结果说明照亮地下理论的可实现性及效果.     

津滨轻轨地磁干扰范围的实验研究

在塘沽地震台与津滨轻轨之间及向北延长线建立野外磁测剖面,对轻轨运营期间的磁场干扰变化进行了实测研究,并对实测结果进行了曲线拟合,得出满足规划中的地磁观测网的环境要求——在以津滨轻轨铁路为骚扰源的影响范围,地磁观测网的地磁固定观测台距轻轨铁路的距离应大于24km。