Kategoria BISAC: Science >> Earth Sciences - General

Due to their unparalleled effectiveness and efficiency, polyfluorinated chemicals (PFC) have become essential in numerous technical applications. However, many PFCs brought to market show limited biodegradability, and their environmental persistence combined with toxic and bioaccumulative potential have become a matter of concern in some instances. This volume highlights the synthesis of PFCs, focusing on substances with improved application and environmental properties, which are a challenge for synthetic chemists. Further, modern mass spectrometric techniques for the detection and...

This book presents dynamic response, vibration characteristics, and nonlinear behavior of complex oil and gas well string by using a combination of theoretical methods, numerical simulation, and experimental analysis. It lays both theoretical and experimental foundation for the design of oil and gas well string parameters. The theoretical methods involved mainly include Hamilton's principle, finite element method, and energy method, while experimental methods involved include similarity principle, vibration testing method, and modal analysis method. It is a valuable reference for both...

Diese jahrlich erscheinende Bibliographie dokumentiert das internationale kartographische Schrifttum. Jeder Band verzeichnet weit mehr als 2.000 Monographien und Artikel aus etwa 400 Zeitschriften, die von einem internationalen Mitarbeiterstab analysiert werden. Themen sind u.a. die Geschichte der Kartographie, Personlichkeiten und Institutionen der Kartographie, die Kartenherstellung, Bereiche wie die topographische oder die Atlas-Kartographie, aber auch Blindenkarten, Film- und Bildschirmkarten und die Kartennutzung. Die originalsprachig aufgefuhrten Titel sind durch ein Autorenregister...

The pneumatic flow mixing method was developed to stabilize dredged soil and surplus soil for promoting their beneficial use in 1999. The pneumatic flow mixing method is a new type of the ex-situ cement stabilization techniques, in which dredged soil and surplus soil is mixed with a relatively small amount of chemical binder without any mixing paddles and blades in a pipeline. When a relatively large amount of compressed air is injected into the pipeline, soil can be separated into small blocks. When binder is injected into the pipeline, the soil block and binder are thoroughly mixed by...