数值分析如何改变了新能源车的设计方法

众多宇宙学以及天文学观测表明，暗物质是宇宙当中的重要组分（大约26%），但对其粒子属性以及除引力之外所参与的相互作用我们却知之甚少。因此，探测暗物质粒子的性质是当今粒子物理界一个重要的前沿课题。传统的暗物质直接探测实验以及对撞机实验对典型的大质量弱相互作用粒子（WIMP）给出了很强的限制。近年来，对（超）轻暗物质的探测引起了国内外同行的广泛关注。在本次报告中，我将针对两类典型的轻暗物质候选者，包括Boosted暗物质以及（类）轴子暗物质，并利用现有的实验数据来探索它们在天体源中的信号 ​

伽马射线暴是宇宙中最剧烈的天体爆发现象，跟黑洞、中子星、超新星等极端天体有关。伽马射线暴在短时间内辐射大量伽马射线，亮度极高，即使产生于极为遥远的宇宙深处也能被我们观测到，是名副其实的“宇宙烟花”。虽然历经半个多世纪的研究，伽马射线暴仍然是未解之谜。近年来随着观测手段的不断升级，人们对伽马射线暴的认识更加全面，比如，发现伽马射线暴可伴随产生引力波。本报告将介绍伽马射线暴的观测研究进展，特别是我国探测伽马射线暴的空间天文望远镜，包括慧眼（Insight-HXMT）空间射线望远镜和怀柔一号极目（GECAM）卫星等。

银河系旋臂结构是一个久而未决的课题。我将介绍它的历史和最近二十年的进展以及将来的展望

High energy particles are useful probes of processes occurring far from Earth, either near the solar atmosphere, in the outer heliosphere, or in distant astrophysical sources, such as supernovae blasts. Collisionless shock waves clearly play a critical role. Although we have learned much in the last few decades, there remain puzzles, many of which stem fromin situ spacecraft observations. Some of the difficulty in understanding relates to the fact that shocks in the solar wind are usually weak, move through energetic particles associated with previous events, and through plasma turbulence, all of which complicate the physics. On the other hand, shocks associated with very fast CMEs, associated with very intense energetic particle events, seem to be more consistent with expectations and provide an excellent laboratory for studying particle acceleration at shocks. I will discuss recent insights into the physics of particle acceleration based on spacecraft observations of shocks associated with fast coronal mass ejections (CMEs), including some recent studies involving observations from the Parker Solar Probe.

不同时代对教师的职业素养要求不同。未来，教育生态要素以及要素之间的关系都将发生变化。作为教师，应意识到教育的变化，并主动应变和求变，提高自身素养以满足未来教育对教师的职业素养要求。

介绍车流推算的基本概念、车流推算的目标、车流推算现状、车流推算的基本方法、模拟方法中车流推算的难点、车流推算的实现技术等内容。