黄河小浪底水库诱发地震可能性初探

本文根据小浪底水库地区的地震地质和水文地质条件，浅析了水库诱发地震的可能性，并对其最大震级进行了多种方法的估算预测。     

泌阳凹陷安棚油田深层系沉积相及对油气分布的控制作用

以安棚油田深层系岩心分析资料及大量测井、录井、生产动态资料为基础，通过各类沉积相标志分析，研究了安棚油田深层系储集层的沉积相类型及沉积相特征，认为该区深层系为近源扇三角洲沉积，并将其划分为上扇、中扇、下扇、扇缘，扇外为半深湖-深湖，并建立了深层系扇三角洲沉积模式。在此基础上，对沉积相与油气分布关系进行分析，结果表明，不同沉积相带物性及含油气性差异明显，中扇物性好，是油气聚集的有利相带；下扇、扇缘等微相相对较差。     

箭竹生长及开花的气象条件研究

通过对我国历史上箭竹开花及王朗自然保护区箭竹生长气象条件的研究认为，箭竹开花多在冬暖夏凉的年份；箭竹的生长量可由气象因素的变化来进行预测。研究结果可为保护大熊猫提供一定的气象依据。     

流动重力布局评价及其观测技术

本文从流动重力测量的布局、复测周期以及观测技术等方面介绍了地震系统重力测量的现状，提出了优化现行布局、调整复测周期、提高观测技术以及改善观测条件的具体意见。指出：为了获得与地震有关的重力变化信息，当前的重点应放在布局的优化和复测周期的调整上。     

银河系分子云总体性质的研究及恒星形成区成协天体的探测

综述了作者通过＾１３ＣＯ观测示研究银河系分子云总体特征和展示大尺度结构，以及探测恒星形成区新成协天体。评述了研究结果及其应用和有关研究课题的深入与发展，并与同类工作作了比较。     

Hydrological character and sea-current structure in the front of Amery Ice Shelf

Hydrological character and Sea-current profiles structure are studied andanalyzed in sea-area of the front of Amery Ice Shelf,Prydz Bay with LADCP,CTDdata.These LADCP,CTD data were acquired during the 19th Chinese Antarctic Sci-entific Expedition.Results of this study agree with that,there exist four differentkinds of water masses in the area of the front of Amery Ice Shelf in the summer of Ant-arctica.Current distribution presents a semi-circumfluence which flows in at the eastand flows out in the west.Moreover,clockwise and anti-clockwise vortices werefound in upper layer and mid-layer in the Prydz Bay.Western areas of these anti-clockwise vortices are positions of inflows from Prydz Bay to Amery Ice Shelf.Thesource of these inflows is the coastal westward current originated in the east of PrydzBay.All these characteristics come down to the pattern of circumfluence,ice meltrate under Ice Shelf,scale of Ice Shelf water production and form of water exchangesbetween area of Ice Shelf and area of Prydz Bay.     

Statistical approach to determine the salinized ground water flow path and hydrogeochemical features around the underground LPG cavern,Korea

The ground water flow path of the coastal area in the Yellow Sea, Korea, was interpreted using both the cross‐correlation analysis of hydraulic properties and the principal component analysis (PCA) of ground water chemistry. Data was obtained from observation wells in the underground liquefied petroleum gas (LPG) cavern constructed in the coastal area of Pyeongtaek. Cross‐correlation results showed that the operating pressure became more influenced on artificial factors for the variation of the groundwater level of the study area (45–66% of correlation coefficient) even though its affecting area was limited to the region with fractures or faults, and also showed that the delay time from the variation of operating pressure to the fluctuation of ground water level were relatively long periods (28–31 days). Three hydrogeochemical events (encrusted cement dissolution, host rock dissolution, and seawater intrusion), which were dominantly influenced on ground water quality, could be induced from the result of PCA. Quantitative evaluation for these events using the mixed equation with principal component scores suggest that the dissolution of encrusted cement materials was the predominant factor (39·0% of the total mixed proportion) to change the chemical composition of the seepage water during the ground water flow from the observation wells to the cavern. Integration of the statistical results also imply that ground water flow and hydrogeochemistry were predominantly affected by artificial factors such as cavern operation pressure and dissolution of encrusted cement materials, which were interdependent factors on the observation wells with high cross‐correlation coefficients and pH. Copyright © 2007 John Wiley & Sons, Ltd.     

A new model for the periodic outbursts of the BL Lac object OJ287

Recent observations provide strong evidence for the BL Lac object OJ287 exhibiting a 11.6±0.5 yr periodicity with a double-peaked maxima in its optical flux variations. Several models have been proposed for the optical behavior. The 2005 November outburst in OJ287 gives us a surprising result since calculation based on the periodicity was predicting such an outburst in late 2006. Here we suggest a new model, it can not only explain the optical quasi-periodic behavior, but also the radio flares behavior which is and simultaneous with the optical flares. We propose that OJ287 is a binary pair of super-massive black holes, both of them creating a jet. The quasi-periodic double peaks would be due to the relativistic beaming effect on the emission coming from the double helix jets. We used “core flares” to explain the large lags between light curves at different frequencies, and the assumption of two jets appear to be merged with each other partly in the radio frequency emitting regions provides a viable interpretation that we can see only a broad maximum which contains two radio flares that we cannot distinguish.     

The Data Collection and Process System for RDT-10000 Type Rock High Pressure Dynamic Triaxial Machine

A data collection and process system is developed for RDT-10000 Type Rock Dynamic Triaxial Machine with High pressure, this system is supported by several subroutines in 6502 assembly language, which is of high-speed, flexibility, multi-functions.