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Proceedings of the 7th International Conference on Nanomanufacturing (nanoMan2021)
This book is a compilation of selected papers from the 7th International Conference on Nanomanufacturing (nanoMan2021), held in Xi’an on November 17-19, 2021 after postponing twice due to COVID-19 pandemic. It encompasses the synthesis of nanomaterials, the fabrication of devices, the characterization of various products and systems, process monitoring and quality control, simulations, and the applications of nanoscience and nanotechnologies.
Information Technology Applications in Industry, Computer Engineering and Materials Science
Selected, peer reviewed papers from the 2013 3rd International Conference on Materials Science and Information Technology (MSIT 2013), September 14-15, 2013, Nanjing, Jiangsu, China
Scientists' Impact on Decision-making
With the increasing influence of science and technology (S&T) on socioeconomic life and public affairs, there has been a growing demand for S&T expertise in today's public decision-making. The National High Technology Research and Development Program (863 Program), involving hundreds of S&T experts, marked the beginning of a new journey for China's high-tech development. This book discusses China's S&T decision-making mechanism, with the 863 Program as the central case and scientist' influence on public decision-making as the focus. More importantly, it extracts three key elements to analyze the determinative factors behind that influence — knowledge, value and institutions, and proposed a KIV framework of macro-analysis. The KIV, being the first framework to generalize factors that could affect scientists' influence on public decision-making, is of both theoretical significance and innovative value. In addition, by finding out those factors, this book attempts to create a decision-making environment conducive to scientists' contribution of their knowledge.
Simulation and Experiments of Material-Oriented Ultra-Precision Machining
Ultra-precision machining is a promising solution for achieving excellent machined surface quality and sophisticated micro/nano-structures that influence the applications of components and devices. Further, given the ultrathin layer of material removed, it is a highly coupled process between cutting tool and material. In this book, scientists in the fields of mechanical engineering and materials science from China, Ukraine, Japan, Singapore present their latest research findings regarding the simulation and experiment of material-oriented ultra-precision machining. Covering various machining methods (cutting, grinding, polishing, ion beam and laser machining) and materials (metal, semiconductor and hard-brittle ceramics), it mainly focuses on the evaluation of the fundamental mechanisms and their implementation in processing optimization for different materials. It is of significant theoretical and practical value for guiding the fabrication of ultra-smooth and functional surfaces using ultra-precision machining.
Science in China
None
Grundlegende Untersuchungen zum konstruktiven Aufbau von Fünfachs-Nanopositionier- und Nanomessmaschinen
Die vorliegende Arbeit beinhaltet Realisierungsmöglichkeiten des konstruktiven Aufbaus von Fünfachs-Nanopositionier- und Nanomessmaschinen (NPMM). Mit zusätzlichen rotatorischen Freiheiten wird die Limitierung kartesisch operierender NPMM hinsichtlich der Adressierbarkeit stark gekrümmter Objektgeometrien überwunden. Systematisch werden modular variierte Maschinenkonzepte im Hinblick auf die Realisierung mehrachsiger Bewegungen entwickelt. Ein hohes Potential zeigen Varianten mit drei unabhängigen linearen Bewegungen des Objektes in Kombination mit zwei unabhängigen Rotationen des Tools um einen gemeinsamen Momentanpol, der dauerhaft mit dem Arbeitspunkt des Tools und dem Abbepunkt der kartesischen NPMM übereinstimmt. Ein derartiger Aufbau, der ultrapräzise Rotationen eines Tools mit einer Masse ≤ 2 kg gewährleistet, wird innerhalb einer NPMM erprobt. Die Positionierabweichungen werden mit Fabry-Pérot-Interferometern gegenüber einem halbkugelförmigen Konkavspiegel in situ erfasst.
