Xem 1-9 trên 9 kết quả Optimal machining operations
  • The principle of Occam’s razor loosely translates to “the simplest solution is often the best”. The author of Kinematic Geometry of Surface Machining utilizes this reductionist philosophy to provide a solution to the highly inefficient process of machining sculptured parts on multi-axis NC machines. He has developed a method to quickly calculate the necessary parameters, greatly reduce trial and error, and achieve efficient machining processes by using less input information, and in turn saving a great deal of time.

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  • Parallel machines (mill-turn machining centers) provide a powerful and efficient machining alternative to the traditional sequential machining process.

    pdf34p nguyen3 13-11-2009 60 4   Download

  • Inspired by previous preprocessing approaches to SMT, this paper proposes a novel, probabilistic approach to reordering which combines the merits of syntax and phrase-based SMT. Given a source sentence and its parse tree, our method generates, by tree operations, an n-best list of reordered inputs, which are then fed to standard phrase-based decoder to produce the optimal translation. Experiments show that, for the NIST MT-05 task of Chinese-toEnglish translation, the proposal leads to BLEU improvement of 1.56%. ...

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  • Motivated by the need of energy-efficiency improvements, process optimization, soft-start capability and numerous other environmental benefits, it may be desirable to operate induction motors for many applications at continuously adjustable speeds. The induction motor drives can provide high productivity with energy efficiency in different industrial applications and are the basis for modern automation. This book provides an account of this developing subject through such topics as modelling, noise, control techniques used for high-performance applications and diagnostics....

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  • CHAPTER 11 MINIMIZING ENGINEERING EFFORT Charles R. Mischke, Ph.D., P.E. Professor Emeritus of Mechanical Engineering Iowa State University Ames, Iowa 11.1 INTRODUCTION/11.2 11.2 REDUCING THE NUMBER OF EXPERIMENTS /11.3 11.3 SIMILITUDE/11.7 11.4 OPTIMALITY/11.9 11.5 QUADRATURE/11.13 11.6 CHECKING/11.15 REFERENCES/11.

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  • Gamma uses traditional relational techniques for query parsing, optimization [SELI79, JARK84], and code generation. The optimization process is somewhat simplified as Gamma only employs hash-based algorithms for joins and other complex operations. Queries are compiled into a left-deep tree of operators. At execution time, each operator is executed by one or more operator processes at each participating site.

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  • International Rectifier's IRAMS10UP60A is an Integrated Power Module developed and optimized for electronic motor control in appliance applications such as washing machines and refrigerators. Plug N Drive technology offers an extremely compact, high performance AC motor-driver in a single isolated package for a very simple design. A built-in temperature monitor and over-temperature/over-current protection, along with the short-circuit rated IGBTs and integrated under-voltage lockout function, deliver high level of protection and fail-safe operation.

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  • General-purpose magnetic flux vector control and auto tuning function are available. It ensures operation that requires high starting torque, such as transfer machine including conveyer, hoist, lift, etc., washing machine, and agitators. •High torque 150%/1Hz and 200%/3Hz are realized •Auto tuning Many kinds of motors can be optimally controlled with Mitsubishi original "non-rotation " auto tuning function. (R1 constants tuning

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  • Generally speaking, direct assembly coding can outperform the use of intrinsics. Nevertheless, for fairness of comparison with algorithms coded in C,we use the provided intrinsics. Our experimental results use single precision 32-bit float- ing point values as the element data type, unless otherwise mentioned. Since SSE and SSE2 registers are 128 bits, this choice means that S = 4. Our Pentium4 machine runs at 1.8 GHz, has 1GB of Rambus RDRAM, and uses the RedHat Linux 7.1 operating system. We use Intel's C++ compiler with the highest optimization level.

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