This research monograph focuses on the design of arithmetic circuits in Quantum Dot Cellular Automata (QCA). Using the fact that the 3-input majority gate is a primitive in QCA, the book sets out to discover hitherto unknown properties of majority logic in the context of arithmetic circuit designs. The pursuit for efficient adders in QCA takes two forms. One involves application of the new results in majority logic to existing adders. The second involves development of a custom adder for QCA technology. A QCA adder named as hybrid adder is proposed and it is shown that it outperforms existing multi-bit adders with respect to area and delay. The work is extended to the design of a low-complexity multiplier for signed numbers in QCA. Furthermore the book explores two aspects unique to QCA technology, namely thermal robustness and the role of interconnects. In addition, the book introduces the reader to QCA layout design and simulation using QCADesigner. Features & Benefits: This research-based book: ·Introduces the reader to Quantum Dot Cellular Automata, an emerging nanotechnology. ·Explores properties of majority logic. ·Demonstrates application of the properties to design efficient arithmetic circuits. ·Guides the reader towards layout design and simulation in QCADesigner.
The Book Begins With A General Picture Of How Man Set Out To Sea And Then It Deals With The Evolution Of Raft And Boat-Building. It Describes Indias Maritime Heritage From The Earliest Days Upto The 16Th Century. The Book Then Points Out How The Monopoly Of The Arab Middlemen In The Sea Trade Was Broken By The Entry Of The European Powers, Followed By Local Wars At Sea. While Tracing The Sea Battles Of The European Powers In The East, The Reasons For Rise And Fall Of The Portuguese, The Dutch And The French Have Been Discussed. How The British Achieved Supremacy In The Indian Ocean Has Been Highlighted. The Progress Of Indias Shipping And Shipbuilding, The Comparative Position Of Maritime States, The Impediments In Competing With Developed Nations, And Measures To Overcome These Handicaps Have Been Discussed. The Abundant Resources Of The Oceans Around Us, The Indian Achievement So Far In The Utilisation Of The Bonanza And The Shortcomings In This Endeavour Have Been Analysed. The Extent Of The Exclusive Economic Zone (Fez) And Indias Rights And Responsibilities As Per International Law Of The Sea, Have Been Brought Out.The Role Of The Indian Navy Since Independence, Its Progress From A Coastal Force To A High Seas Fleet In The Missile Age, Its Achievements And Drawbacks Have Been Examined. The Indian Navys Role In Liberation Of The Portuguese Possessions, The 1965 Pakistan Conflict And The 1971 Pakistan War And The Lessons Learnt In These Operations Have Been Analysed.The Birth, Progress And Role Of The Coast Guard Service Have Been Succinctly Brought Out. The Book Concludes By Highlighting The Importance Of The Sea Around Us, And How The Indian Ocean Rim Countries Can Co-Operate In Making The Indian Ocean A Zone Of Peace For The Benefit Of Mankind At Large.
Spectral Methods in Transition Metal Complexes provides a conceptual understanding on how to interpret the optical UV-vis, vibrational EPR, and NMR spectroscopy of transition metal complexes. Metal complexes have broad applications across chemistry in the areas of drug discovery, such as anticancer drugs, sensors, special materials for specific requirements, and catalysis, so a thorough knowledge in preparation and characterization of metal complexes, while niche, is critical. Accessible to both the seasoned researcher and the graduate student alike, this book provides readers with a single source of content that addresses spectral methods in transition metal complexes. Provides readers with a single reference on metal complexes and coordination compounds Contains more than 100 figures, tables, and illustrations to aid in the retention of key concepts Authored by a scientist with nearly 40 years of experience in research and instruction
This book presents hardware-efficient algorithms and FPGA implementations for two robotic tasks, namely exploration and landmark determination. The work identifies scenarios for mobile robotics where parallel processing and selective shutdown offered by FPGAs are invaluable. The book proceeds to systematically develop memory-driven VLSI architectures for both the tasks. The architectures are ported to a low-cost FPGA with a fairly small number of system gates.
This book introduces readers to the emerging carbon nanotube field-effect transistor (CNTFET) technology, and examines the problem of designing efficient arithmetic circuits in CNTFET technology. Observing that CNTFETs make it possible to achieve two distinct threshold voltages merely by altering the diameter of the carbon nanotube used, the book begins by discussing the design of basic ternary logic elements. It then examines efficient CNTFET-based design of single and multiple ternary digit adders by judicious choice of unary operators in ternary logic, as well as the design of a ternary multiplier in CNTFET technology, and presents detailed simulation results in HSPICE. Lastly, the book outlines a procedure for automating the synthesis process and provides sample code in Python.
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