As the nuclear burning moves outward to the fresh material in a shell surrounding the core, the star bloats into a so-called red giant. 当核燃烧向外进行到核心周边壳层的新物质时,恒星会膨胀成所谓的红巨星。
The pressurized vessel of a nuclear reactor consists of three parts: the top cap, the ribbed tube-plate and the shells ( the external shell and the bottom shell). 反应堆压力容器包括顶盖、加肋管板,壳体(外壳和底部壳体)三部分。
Direct Comparison of the Calculation Results of~ ( 20) Ne Nuclear Energy Spectrum from Shell Model, Democratic Mapping and Microscopic IBM Approach on~ ( 20) Ne Nuclei ~(20)Ne核谱在壳模型,Democraticmapping和微观IBM方案中计算结果的直接比较
Magnetic Moments of Odd A Nuclei in q-Deformed Nuclear Shell Model q形变壳模型中奇A核的磁矩
Bridge, crane beam, sleeper, ocean structure, pressure institution and nuclear reactor safety shell are often endured stress from many circle times and biggish repetition loading, and fatigue collapse is very easy accrued because of long and repeating loading. 桥梁、吊车梁、轨枕、海洋结构、压力机构和核反应堆安全壳等经常承受循环次数较多而重复荷载较大的结构,在长期的反复荷载的作用下极容易发生疲劳破坏。
Nuclear power plant containment shell is a large-volume pre-stressed reinforced concrete silo-shell structure to prevent radioactivity, and is the most important protected object in special condition. 核电站安全壳是防止放射性物质向环境释放的大体积预应力混凝土筒壳结构,是特殊环境条件下的重点防护目标。
HREM Study on Nuclear Shell Microstructure of CdSe/ HgSe/ CdSe Quantum Drop Quantum Well CdSe/HgSe/CdSe量子点量子阱(QDQW)核壳微结构的HREM研究
It briefly includes several following aspects: ( 1) Some nuclear models such as liquid drop model, Fermi gas model, shell model, project shell model and Bohr model are summarized. 概述了已经取得很成功的液滴模型、费米气体模型、壳模型、投影壳模型以及玻尔模型等描述原子核结构的理论模型。
Synthesis of Acrylic Ester Latex with Nuclear Shell Structure 核壳型丙烯酸酯乳胶的合成
Contemporary Nuclear Shell Models 现代壳模型
A Monte-Carlo method is one of the effective measures in nuclear critical security analysis. It was used to study the critical variation about breeder system of multi-region spherical shell in the case of water submergence. Monte-Carlo方法是核临界计算的有效手段之一,应用该方法对水淹条件下多块材料球壳增殖系统的临界状态进行了计算分析。
Nuclear Pair Shell Model and Its Numerical Calculation(ⅱ) 原子核的配对壳模型数值计算(Ⅱ)
Skyrme-Hartree-Fock Description of the Nuclear Structure in Ca Isotopes(ⅰ) Binding Energy and Shell Effects, Radii and Density Distributions Skyrme-Hartree-Fock方法对Ca同位素基态性质的研究(Ⅰ)结合能、壳结构、半径与密度分布
Based on the nuclear shell model ( NSM), we have calculated the sequences of γ-ray transition rates and the pure E2 reduced transition probabilities of~ ( 143) Pm, and compared with experimental data. 利用核壳模型在计算143Pm核能级结构及对应的自旋宇称基础上,系统地对其γ级联跃迁链以及纯E2跃迁进行了计算,并与实验数据进行对比。
Application of Flat Lifting Jacks in Sealing Temporary Openings on a Nuclear Safety Shell 扁平千斤顶在核安全壳临时洞口封闭时的应用
Hollow nanostructures have high scattering coefficient and controllable resonant frequency by changing the size of nuclear and shell thickness. 在具有SPR效应的贵金属纳米粒子中,中空纳米结构有一个很高的散射系数,它的共振频率通过改变中空核的尺寸和壳的厚度可以很容易地被控制。