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本書為第15屆“液體和氣體中的分離現象”國際會議的科技報告文集。本書主題針對同位素分離的基礎理論和技術, 重點在同位素分離的離心法和激光法, 也包括其他分離方法和技術、同位素的應用等, 反映了同位素分離領域中的理論研究和應用研究的新思想、新進展。

Dive under the sea with these realistic marine origami models!In Fantastic Origami Sea Creatures, Japanese origami expert Hisao Fukui shows you how to create incredibly detailed aquatic wildlife, including a giant squid, prehistoric creatures and even a massive blue whale calf!The step-by-step folding instructions and photos in this book present 20 challenging and amazingly lifelike models — from intermediate to complex in terms of their level of difficulty.The 20 projects in this book include:The Penguin — A color-change model capturing the awkward and slightly comical appearance of these flightless aquatic birdsThe Polar Bear — A menacing hunter who will hungrily stalk the edge of your desk or bookshelfThe Goldfish — This model features elegant lines and clever folding solutions — and it's difficult to overfeed, to boot!The Crocodile — A lurking hunter which is ideal for showcasing special papersThe Crab — With all of the legs to define, this model is a challenging one, but with

Packed with hands-on applications, Babbie's THE PRACTICE OF SOCIAL RESEARCH, 15th Edition, equips your students with the tools they need to practically apply research concepts as both researchers and consumers. Known as the "gold standard" for research methods, the text delivers a comprehensive, straightforward introduction to the field of research as practiced by social scientists. Dr. Babbie emphasizes the research process by showing students how to design and construct projects, introducing the various observation modes in use today. The new edition includes "What do you think?" puzzles that immediately draw students into chapter concepts. General Social Survey data is updated throughout while new coverage includes the global use of social research, the emerging role of big data, demographic analysis and more. Also available: MindTap digital learning solution.

Imagined Geographies is a pioneering work in the study of history and geography of the pre-1800 world. In this book, Gunn argues that different regions astride the maritime silk roads were not only in