TJ-2体应变传感器传递函数测试   总被引：1，自引：1，他引：0  

李海亮  马京杰  苏恺之 《地震地磁观测与研究》2017,38(5):127-132

为对TJ-2体积式应变传感器传递函数做测试,设计传递函数测试装置,介绍传递函数估计方法,给出传感器输出接10 Hz低通滤波器和无滤波时传递函数拟合结果,并对测试结果和测试装置问题进行分析。测试结果表明,该传感器输出频带大于10 Hz,可应用于动态信号观测。  相似文献   

山东莱芜胡家庄地区稀土矿流体包裹体特征及成矿条件          下载免费PDF全文

刘敬杰  张鹏  兰君  牛金  邢楠 《山东国土资源》2019,35(1)

胡家庄稀土矿床位于莱芜弧形断裂弧顶的北侧,该文重点研究稀土矿床石英矿物中的流体包裹体特征。研究表明,流体包裹体以气液两相H2O包裹体为主,均一温度主要集中119.1～233.2℃。盐度变化范围大致分布在8.1～22.4 wt%,平均16.2%,成矿流体盐度为中低盐度流体;密度变化于0.9～1.1 g/cm3,平均1.02 g/cm3;成矿压力范围在30～95 MPa,平均62.5 MPa,推断矿床成矿压力环境为中低压环境,矿床成矿深度范围为2.5～3.5 km。  相似文献   

TJ-2体积式应变仪器网络化实现     

李海亮  马爱虹  马京杰  马相波  王秀英  苏恺之 《地震地磁观测与研究》2007,28(2):105-110

为适应中国地震局"十五"前兆仪器总体设计的要求,对TJ-2体积式应变仪实现网络化功能进行了开发.本文介绍了网络化仪器的硬件设计、采用的操作系统和功能软件,并介绍了在TJ-2体积式应变仪仪器上的具体应用.  相似文献   

体积式钻孔应变仪的标定研究     

马京杰  李海亮 《大地测量与地球动力学》2022,42(2):207-210

介绍了体积式钻孔应变仪的结构原理,分析计算了仪器的热标定.通过别尔采夫滤波去掉仪器产出数据中的低频趋势变化,求得M2波潮汐因子,并利用潮汐因子对仪器数据进行校正.  相似文献   

Cytogenetic analysis in two scallops (Bivalvia: Pectinidae) by PRINS and PI banding   总被引：1，自引：0，他引：1  

ZHANG Lingling  BAO Zhenmin  WANG Jue  WANG Shi  HUANG Xiaoting  HU Xiaoli  HU Jingjie 《海洋学报(英文版)》2007,26(5):153-158

Cytogenetic analysis was performed for the bay scallop(Argopecten irradians Lamarck 1819) and the Japanese scallop(Patinopecten yessoensis Jay 1857) by primed in situ labeling(PRINS) and propidium iodide(PI) banding techniques.The PRINS analysis revealed that major rRNA genes were clustered in two loci on the telomeric regions of the short arms on two acrocentric chromosome pairs in A.irradians and on two submetacentric pairs in P.yessoensis.The histone H3 gene sites differed in number and location between these two species.The C-band-like patterns revealed by PI staining varied considerably between these two species.A.irradians displayed terminal bands at long arms on all chromosomes,centromeric bands on some pairs and interstitial bands on five pairs.P.yessoensis exhibited only centromeric bands on all chromosomes.These results would contribute to the better understanding of karyotype evolution in A.irradians and P.yessoensis.  相似文献   

山东省微山县郗山内生型轻稀土矿找矿及研究新进展          下载免费PDF全文

张云峰  张鹏  刘敬杰  兰君  邢楠 《山东国土资源》2022,38(1):19-25

内生型稀土矿产是我国的优势资源,也是国内外高度敏感的"关键"金属矿产,满足了全世界新兴产业发展对稀土的需求,成为全球稀土找矿和研究的热点.微山是我国重要的稀土资源和产业基地,勘查过程中在碱性岩体中发现了轻稀土矿体,并在花岗岩体、闪长岩体中发现了稀土矿体.这些矿体的发现,对鲁西轻稀土矿床的勘查具有重要的指示意义,显示出轻...  相似文献   

深井地震综合观测系统集成     

马京杰  李宏  马相波 《地震地磁观测与研究》2013,34(3)

深井地震综合观测中信息系统井下传感器采用数字输出方式,与地面仪器之间基于RS-422方式进行通信;基于Linux操作系统,编写与井下传感器通信控制软件及符合相关行业标准的对外服务软件,并进行相关实验,验证方案的现实可行性.  相似文献   

Temporal variation of wind speed in China for 1961�C2007     

Guobin Fu  Jingjie Yu  Yichi Zhang  Shanshan Hu  Rulin Ouyang  Wenbin Liu 《Theoretical and Applied Climatology》2011,104(3-4):313-324

Monthly observed wind speed data at 597 weather stations and NCEP wind speed data at 10?m above surface were used to explore the temporal variations of the wind speed for 1961?C2007 in China. The results indicate that the temporal variation of annual wind speed in China has experienced four phases: two relatively steady periods from 1961 to 1968 and 1969 to 1974 with a sharp step change in 1969, a statistically significant decline stage from 1974 to 1990s, and another relatively steady period from 1990s to 2007. Except for the sharp step in 1969 being caused by the changes of observation instrument, other breakpoints correspond well with the positive and negative phases of the interdecadal Pacific oscillation. In addition, four different temporal variation patterns of annual wind speed in China have been identified by using cluster analysis and their spatial distributions were also explored.  相似文献   

Formation and evolution of sand deserts in Xinjiang,Northwest China：Ⅱ. The palaeo-environmental reconstruction     

ZHU Bingqi  YU Jingjie  QIN Xiaoguang  Patrick RIOUAL  ZHANG Yichi  XIONG Heigang 《地理学报》2014,24(3):539-559

Based on the palaeoclimatic and palaeoenvironmental evidences of geological history and human history periods, this paper reviews the researches and progresses on the development of the sandy deserts in Xinjiang. It pointed out that the features of tectonic structure in Xinjiang had made both the Tarim Basin and the Junggar Basin being influenced greatly by the foehn effects originated from the planetary wind system of westerly, the East Asian ocean-continental monsoon and the topographical mountain-valley winds. The regional patterns of climate and environment since the Quaternary were characterized by the overall persistent drought accompanied by fluctuations in the secondary scale. Formations of aeolian sediments in the basins and at the margins are a potential response to global climate change, particularly the aridification of the Asian hinterland deduced by the uprising of the Tibetan Plateau and its surrounding highlands. For the question about the formation time of the Taklamakan Desert, because the research methods, objects and information carriers used in previous studies are different, there are many disputes in the academic circles at present. Evidences from aeolian deposits/rocks at the edge and in the hinterland of these sandy deserts and their chronological data indicate that an arid climate and land surface aeolian processes have occurred at the edge of the Tarim Basin and its hinterland areas since the Tertiary period. However, the duration time of these processes at mass scale should have begun after the middle Pleistocene and lasted to the Holocene. Occurrence of dune fields in recent 2000 years in the oasis areas should be greatly influenced by human factors.  相似文献   

中国西北部新疆地区沙漠的形成与演化——Ⅱ.古环境重建(英文)     

朱秉启  于静洁  秦晓光  Patrick RIOUAL  张一驰  熊黑钢 《地理学报(英文版)》2014,24(3):539-559

Based on the palaeoclimatic and palaeoenvironmental evidences of geological history and human history periods, this paper reviews the researches and progresses on the development of the sandy deserts in Xinjiang. It pointed out that the features of tectonic structure in Xinjiang had made both the Tarim Basin and the Junggar Basin being influenced greatly by the foehn effects originated from the planetary wind system of westerly, the East Asian ocean-continental monsoon and the topographical mountain-valley winds. The regional patterns of climate and environment since the Quaternary were characterized by the overall persistent drought accompanied by fluctuations in the secondary scale. Formations of aeolian sediments in the basins and at the margins are a potential response to global climate change, particularly the aridification of the Asian hinterland deduced by the uprising of the Tibetan Plateau and its surrounding highlands. For the question about the formation time of the Taklamakan Desert, because the research methods, objects and information carriers used in previous studies are different, there are many disputes in the academic circles at present. Evidences from aeolian deposits/rocks at the edge and in the hinterland of these sandy deserts and their chronological data indicate that an arid climate and land surface aeolian processes have occurred at the edge of the Tarim Basin and its hinterland areas since the Tertiary period. However, the duration time of these processes at mass scale should have begun after the middle Pleistocene and lasted to the Holocene. Occurrence of dune fields in recent 2000 years in the oasis areas should be greatly influenced by human factors.  相似文献