© Nicolas Brodu. 2003 The astrolabe is an ancient astronomical computer for solving problemsrelating to time and the position of the sun and stars in the sky.Historians credit the invention of the astrolabe to classical Greece.Brass astrolabes were highly developed in the Islamic world of the 8thcentury and later. chiefly as an aid to navigation and as a way offinding the direction of Mecca. In the Middle Ages it found its wayback to Europe and became the chief navigational instrument until theinvention of the sextant in the 18th century.
Advanced Robotics Research is a gold Open Access journal dedicated to disseminating cutting-edge research across the entire spectrum of robotics and embodied AI, from fundamental to applied studies and is open for submissions now. The journal covers robots of all sizes, shapes, and forms, including humanoid systems, autonomous vehicles, drones, multi-robot systems, swarms, soft and bioinspired robots, micro- and nano-robots, large-scale industrial robots, and more.
multidisciplinary, materials science, chemistry, physics, life sciences
Advanced Sustainable Systems is an international, peer-reviewed, interdisciplinary journal publishing outstanding research results on the development and implementation of systems, solutions, technologies and applications that share the focus on the advancement of sustainable living. In alignment with the UN's Sustainable Development Goals (SDGs) the journal publishes papers covering one or more of the following topics:
Aims and Scope Download Flyer Advanced Synthesis and Catalysis(ASC) is the leading primary journal in organic. organometallic. and applied chemistry. The high impact of ASC can be attributed to the unique focus of the journal. which publishes exciting new results from academic and industrial labs on efficient. practical. and environmentally friendly organic synthesis. While homogeneous. heterogeneous. organic. and enzyme catalysis are key technologies to achieve green synthesis. significant contributions to the same goal by synthesis design. reaction techniques. flow chemistry. and continuous processing. multiphase catalysis. green solvents. catalyst immobilization. and recycling. separation science. and process development are also featured in ASC. The Aims and Scope can be found in theNotice to Authorsor on the first page of the table of contents in every issue. ISSN: 1615-4150 (print). 1615-4169 (online). CODEN: ASCAF7. Volume 353. 18 Issues in 2011. Masthead Masthead(PDF) –[Show history][Hide history] How to cite:To make sure that references to this journal are correctly recorded and resolved (for example in CrossRef or ISI Web of Science). please use the following abbreviated title in any citations: 'Adv. Synth. Catal.' (punctuation may vary according to the style of the citing journal).
Advanced Theory and Simulations is an interdisciplinary, international, English-language journal that publishes high-quality scientific results focusing on the development and application of theoretical methods, modeling and simulation approaches in all natural science and medicine areas, including:
Advanced Therapeutics provides a unique multidisciplinary forum for the best research in the next generation of therapeutics, such as targeted drug delivery, cellular and genetic therapies, personalized medicines and theranostics, as well as pharmacology, toxicology and drug discovery.