Tectonic Movement and Global Climate Change

Glaciation between northern hemisphere and southern hemisphere were synchronous, the ice age occurred not in high but in low value of the eccentricity of the earth's orbit. Such facts went against the precession principle of the astronomical theory of ice age. The inhomogeneous distribution of climate consisted with the inhomogeneous distribution of ocean and continent. The north/south antisymmetry may be attributed to southward deviation of the thermal center and northward deviation of the mass center within the mantle demonstrated by seismic tomography. The core - mantle angular momentum makes rotational energy into thermal energy and mantle plumes erupt in the ocean bottom. The earth's deformation by tidal force makes the eruption of mantle plumes strong. They are the reason that glaciation between the Northern Hemisphere and Southern Hemisphere are synchronous and the ice age occurred in low value of the eccentricity of the earth' s orbit. The tectonic movement is playing a most important part in global climate change.     

对可控硅调压整流电路若干问题的分析

本文比较了两种可控硅整流电路,在这两种电路中把反并联可控硅接入阳极变压器。文章介绍了电路的过压和过流的保护方法并给出了电路的计算公式和经验数据。     

丽江大震前长—中—短—临地震学异常的演化过程

本通过丽江大震前地震学各项异常的动态追踪，研究了长－中－短－临异常伴随大震孕育、发生的演化过程，结果表明：在强震的缺震、强震的重复、中强震密集、诱发地震、相关地震等多项长期异常的背景上，出现了中小地震活跃、调制小震频繁、复发周期降低、震源深度加深和震级差增大、地震序列ｈ值下降等同步的中期异常，而１９９５年中小地震活跃后的平静、低复发周期的回升、震源深度为２５公里和震级差在１．０－１．１级的地震次     

GPS授时技术在地震观测中的应用

在地震观测中，时间基准测量的精度非常重要。我们利用全球定位系统（ＧＰＳ）设计完成了数字地震记录仪的实时在线授时系统，提高了时间服务精度。本文详细介绍了利用ＧＰＳ授时的基本原理，给出了我们研制的数字地震仪中授时系统设计的理论计算和具体的同步算法和程序以及硬件设计框图。     

印度板块北边界地震活动和中国大陆地震

本文研究了印度板块北边界地震活动与我国大陆地震活动的关系，给出了两者在时间起伏上的一致性，以及印度板块北边界兴都库会和缅甸两端点附近中深地震对中国大际强震活动所具有的前兆性和相关性。这些特点，对于中国大陆强震活动的预测，尤其是地震大形势预测是十分有意义的。文中还应用了中国大陆强震孕育发生的计算机模型的研究结果，讨论了强震活动的时空分布特征，对于理解中国大陆作为一个孕震系统在周围地质构造块体动力作用     

高精度测频方案设计

介绍了一种基于数字频率计原理 ,以AT89C5 1单片机为控制器件的新型频率测量方法。论述了基本原理和软硬件实现 ,并对其误差进行了分析。克服了通用频率计由于± 1MSB误差在高低频段测量精度不等的缺陷 ,实现了高低频率的等精度测量。由于此方法具有高精度、低成本、易改进的特点 ,因此具有一定的实用性。     

伊犁盆地砂岩型铀矿综合信息找矿模式研究

运用板块构造理论,对伊犁盆地铀矿成矿地质背景,区域地质构造特征,控矿机理,控制因素和成矿规律等方面进行综合分析研究。提出了天山古岛弧系中,伊犁多相地块之上中新生代压扭性断坳盆地内稳定地块与特定的古地理环境及其“构造阶地土土”,共同控制层间氧化带 型砂岩型铀矿的新观点,并将“水液型”砂岩型铀矿的成因归结为“双合”式铀成矿模式及其“八位一体”的综合信息找矿模式。     

张北6.2级地震中短期阶段异常演化及同步性

基于强震前主破裂潜在变化过程中产生的地壳形变异常及伴随地壳形变而产生的地下水化学前兆现象随时间变化显示出的动态异常，依据怀来地震台地形变、流体观测资料，研究了1998年张北6．2级地震前地形变、地下流体异常特性及同步性，有由短期向临震演化的不同阶段异常特征。形变异常早于流体异常出现，临震异常集中出现，反映明显。断层气CO2、水汞、体应变同时在震前的二个月出现，显示出异常的集中性、同步性特征。     

乌什地震台应变仪观测资料对比分析

对乌什地震台TJ-Ⅱ型体积式钻孔应变仪和RZB多分量钻孔应变仪资料进行对比分析,结果发现,同步性较好的两套仪器在地震前后呈现的异常变化不尽相同。     

Synchronism of runoff response to climate change in Kaidu River Basin in Xinjiang, Northwest China

The runoff in alpine river basins where the runoff is formed in nearby mountainous areas is mainly affected by temperature and precipitation.Based on observed annual mean temperature,annual precipitation,and runoff time-series datasets during 1958–2012 within the Kaidu River Basin,the synchronism of runoff response to climate change was analyzed and identified by applying several classic methods,including standardization methods,Kendall's W test,the sequential version of the Mann-Kendall test,wavelet power spectrum analysis,and the rescaled range(R/S) approach.The concordance of the nonlinear trend variations of the annual mean temperature,annual precipitation,and runoff was tested significantly at the 0.05 level by Kendall's W method.The sequential version of the Mann-Kendall test revealed that abrupt changes in annual runoff were synchronous with those of annual mean temperature.The periodic characteristics of annual runoff were mainly consistent with annual precipitation,having synchronous 3-year significant periods and the same 6-year,10-year,and 38-year quasi-periodicities.While the periodic characteristics of annual runoff in the Kaidu River Basin tracked well with those of annual precipitation,the abrupt changes in annual runoff were synchronous with the annual mean temperature,which directly drives glacier-and snow-melt processes.R/S analysis indicated that the annual mean temperature,annual precipitation,and runoff will continue to increase and remain synchronously persistent in the future.This work can improve the understanding of runoff response to regional climate change to provide a viable reference in the management of water resources in the Kaidu River Basin,a regional sustainable socio-economic development.