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粒子加速器在经过两年的关闭后,大型强子对撞机将在三月份重新启动。这台位于欧洲核子研究中心的机器,将以13万亿电子伏特的碰撞重启——相当于当前纪录的两倍。科学家们希望,额外的"火力"能使对撞机发现新的现象,以填补粒子物理学标准模型的空白。如果升级后的大型强子对撞机找不到理论预测的许多重粒子证据,目前流行的尚有疑问的超对称性理论可能会失去进一步支持。 相似文献
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WANG Jingxiu 《中国科学院院刊(英文版)》2011,25(3):199-201
In this article,we report a few advances in the studies based on the solar vector magnetic field observations which were carried out mainly with the Solar Magnetic Field Telescope at the Huairou Solar Observing Station in the 1990s.(1) We developed necessary methodology and concepts in vector magnetogram analysis(Wang et al.1996).For the first time,we proposed to use the photospheric free magnetic energy to quantify the major flare productivity of solar active regions(ARs),and it had been proved to be the best parameter in representing the major flare activity.(2) We revealed that there was always a dominant sense of magnetic shear in a given AR(Wang 1994),which was taken as the premise of the helicity calculation in ARs;we made the first quantitative estimation of magnetic helicity evolution in ARs(Wang 1996).(3) We identified the first group of evidence of magnetic reconnection in the lower solar atmosphere with vector magnetic field observations and proposed a two-step reconnection flare model to interpret the observed association of flux cancellation and flares(Wang and Shi 1993).Efforts to quantify the major flare productivity of super active regions with vector magnetic field observations have been also taken. 相似文献
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韩继颖 《内蒙古科技与经济》2012,(8):99
以综放开采地表移动观测站设计的第一阶段,即移动参数的确定为例,根据兖州矿业集团兴隆庄煤矿4326工作面概况及地质采矿条件,对观测站设计时采用的岩移参数进行了计算。 相似文献
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马召伟 《内蒙古科技与经济》2022,(5):83-84,161
重点介绍了生态气象自动观测站各部分的构成,并对站点运行过程中常见故障进行了总结,对站点的稳定运行有一定的指导意义. 相似文献
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