相对论重离子碰撞(又称高能核-核碰撞)为研究极端条件下核物质内禀性质、致密星体内部结构和大爆炸之后宇宙的早期演化过程提供了途径.强相互作用的量子色动力学(QCD)理论预言存在着解禁闭的新物质状态夸克-胶子等离子体(QGP).经过近30...相对论重离子碰撞(又称高能核-核碰撞)为研究极端条件下核物质内禀性质、致密星体内部结构和大爆炸之后宇宙的早期演化过程提供了途径.强相互作用的量子色动力学(QCD)理论预言存在着解禁闭的新物质状态夸克-胶子等离子体(QGP).经过近30年的努力,在极端相对论能区的核-核对撞实验中,包括RHIC和LHC的实验,科学家找到了QGP存在的证据.目前,高能核物理的一个重要的科学问题是高重子密度区的相结构,包括寻找相边界和可能存在的QCD临界点.量子热动力学基本原理告诉我们只有找到相边界或临界点才能最终确定新的物质相QGP的存在.我们首先回顾了高能核物理实验的研究现状,其中包括RHIC能量扫描实验中的强子集体运动、手征特性的研究和QCD临界点的寻找.然后对利用我国重离子加速器群,如Heavy Ion Research Facility in Lanzhou (HIRFL)和High Intensity heavy-ion Accelerator Facility (HIAF)以及CSR-External-target Experiment等开展高能核物理实验研究进行了展望.展开更多
Transforming amino acids into novel catalysts and ligands is a remarkable subset of new catalyst development in order to imitate enzymatic efficiencies. Their ability to perform a variety of asymmetric catalytic react...Transforming amino acids into novel catalysts and ligands is a remarkable subset of new catalyst development in order to imitate enzymatic efficiencies. Their ability to perform a variety of asymmetric catalytic reactions is complimented by their ready availability, rich transformations, stability and easy＇procedure. Herein, we focused-on describing our endeavoT ofdeveloping new catalysts and ligands from primary and secondary amino acids. It includes C2-symmetric N,N＇-dioxides, guanidine-amides, bispidine-based diamines, and other organic salts. The account covered a brief introduction about their discovery, representative applications and related mechanisms.展开更多
文摘相对论重离子碰撞(又称高能核-核碰撞)为研究极端条件下核物质内禀性质、致密星体内部结构和大爆炸之后宇宙的早期演化过程提供了途径.强相互作用的量子色动力学(QCD)理论预言存在着解禁闭的新物质状态夸克-胶子等离子体(QGP).经过近30年的努力,在极端相对论能区的核-核对撞实验中,包括RHIC和LHC的实验,科学家找到了QGP存在的证据.目前,高能核物理的一个重要的科学问题是高重子密度区的相结构,包括寻找相边界和可能存在的QCD临界点.量子热动力学基本原理告诉我们只有找到相边界或临界点才能最终确定新的物质相QGP的存在.我们首先回顾了高能核物理实验的研究现状,其中包括RHIC能量扫描实验中的强子集体运动、手征特性的研究和QCD临界点的寻找.然后对利用我国重离子加速器群,如Heavy Ion Research Facility in Lanzhou (HIRFL)和High Intensity heavy-ion Accelerator Facility (HIAF)以及CSR-External-target Experiment等开展高能核物理实验研究进行了展望.
文摘Transforming amino acids into novel catalysts and ligands is a remarkable subset of new catalyst development in order to imitate enzymatic efficiencies. Their ability to perform a variety of asymmetric catalytic reactions is complimented by their ready availability, rich transformations, stability and easy＇procedure. Herein, we focused-on describing our endeavoT ofdeveloping new catalysts and ligands from primary and secondary amino acids. It includes C2-symmetric N,N＇-dioxides, guanidine-amides, bispidine-based diamines, and other organic salts. The account covered a brief introduction about their discovery, representative applications and related mechanisms.
