Design and implementation of low-cost geomagnetic field monitoring equipment for high-density deployment

The observation of geomagnetic field variations is an important approach to studying earthquake precursors.Since 1987,the China Earthquake Administration has explored this seismomagnetic relationship.In particular,they studied local magnetic field anomalies over the Chinese mainland for earthquake prediction.Owing to the years of research on the seismomagnetic relationship,earthquake prediction experts have concluded that the compressive magnetic effect,tectonic magnetic effect,electric magnetic fluid effect,and other factors contribute to preearthquake magnetic anomalies.However,this involves a small magnitude of magnetic field changes.It is difficult to relate them to the abnormal changes of the extremely large magnetic field in regions with extreme earthquakes owing to the high cost of professional geomagnetic equipment,thereby limiting large-scale deployment.Moreover,it is difficult to obtain strong magnetic field changes before an earthquake.The Tianjin Earthquake Agency has developed low-cost geomagnetic field observation equipment through the Beijing–Tianjin–Hebei geomagnetic equipment test project.The new system was used to test the availability of equipment and determine the findings based on big data..

红砖烧成对污泥原料中重金属离子固化的研究

研究了关中地区某砖厂的制砖原料(黏土、煤矸石、污泥)和成品红砖中的重金属离子含量,同时利用水浸出和酸浸出的方法表征了污泥和红砖中重金属离子的耐浸出效果,研究发现:污泥中的重金属离子很容易被水浸出,而红砖的烧制过程则将污泥中重金属离子成功固定于红砖当中,使之可以成功抵御水的浸出,即使在酸性条件下也仅有少量浸出。

红砖表面空心瘤状物的成因研究

采用X射线衍射和扫描电子显微镜对关中地区某砖厂红砖表面黑色空心瘤状物的成因进行了研究,研究发现:红砖表面的空心瘤状物源于缺氧条件下制砖原料中黄铁矿及相关化合物的热分解,因此,可以根据产品红砖表面空心瘤状物分布的均匀性大致判断原料煤矸石的混合是否均匀,此外,还可以根据该空心瘤状物的多少来大致定性判断砖窑尾气中的SO2含量高低。

针刺得气类评测工具研究现状及应用概述

文章通过广泛检索国内外文献,在对现有针刺得气类评测工具的设计及应用相对比的基础上,系统介绍了现行得气类评测工具的发展及应用情况,并对针刺得气、针感、得气的客观化研究及相关评测方法展开讨论。经过十余年来的发展演变,得气类评测工具虽然已从早期基于疼痛感觉相关的测量逐渐拓展到对与得气相关的情绪、感觉传导等不同内涵变化的关注,但在目前依然缺乏能够得到普遍认可的针刺得气评测工具的背景下,本文指出得气量表的构建应与临床紧密结合,充分考虑得气本身具有多维度复杂性的内涵,从整体结构的设置上完善评价指标的设置,从而为得气在临床治疗中的客观量化发挥的作用以及相应评测工具的构建提供更加合理的评判方法和参考依据。