this papers defines the syntax and semantics of GP 2, a revised version of the graph programming language GP. New concepts are illustrated and explainedwith example programs. Changes to the first version of GP include...
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Currently there is a burgeoning interest in three-dimensional construction and design: 3D printing and fabrication devices have-with almost shocking swiftness-become available to students and home hobbyists, allowing ...
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ISBN:
(纸本)9781450307512
Currently there is a burgeoning interest in three-dimensional construction and design: 3D printing and fabrication devices have-with almost shocking swiftness-become available to students and home hobbyists, allowing a vastly expanded audience to imagine, and then print out, their own tangible designs. Still, while the fabrication devices themselves are becoming available to younger children, the task of 3D design itself remains difficult for youngsters. the difficulty lies in the "2D screen bottleneck": three-dimensional objects for printing must generally be designed in complex software that works exclusively with, and through, a flat two-dimensional screen. this paper introduces the UCube, a spatial input device designed specifically with children and "3D novices" in mind. the basic idea behind the UCube is that it provides a spatial, volumetric array of light switches that can be turned on and off individually by the user;the pattern of lights is then input to a desktop computer, where it can be employed to specify a collection of 3D points in space. the result is that 3D design-at least for simple shapes-becomes a matter of moving one's hands in space to (e.g.) select the boundary points of the desired shape. We describe the design of the UCube, the influences behind it, and some early encouraging pilot tests of the device with middle-school-age children.
Bandwidth of analog channel is one of the key factors that restrict the escalation of performances of digital storage oscilloscope. the performances of wideband analog channel are affected by various factors such as f...
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Product dimensional quality has been one of the most important challenges for machining processes. However, current practice in multi-operational machining is a monitoring or inspection oriented measurement strategy w...
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In this paper, we proposed a nonlinear subdivision scheme based on tangent vector, withthe purpose of offsetting the deficiencies of Dyn's 4-point method and other classical linear subdivision schemes in the cont...
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In this paper, we proposed a nonlinear subdivision scheme based on tangent vector, withthe purpose of offsetting the deficiencies of Dyn's 4-point method and other classical linear subdivision schemes in the control of shape of subdivision curves. this method has a clear geometric meaning and the property of convexity preserving. theoretical analysis show that the limit curve of this method is G1 continuous without self-intersection. Several examples are given to show the effectiveness of the scheme.
A new method of feature extraction and selection of EEG signal for brain-computer interface design is presented. the proposed feature selection method is based on higher order statistics (HOS) calculated for the detai...
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ISBN:
(纸本)9783642202810
A new method of feature extraction and selection of EEG signal for brain-computer interface design is presented. the proposed feature selection method is based on higher order statistics (HOS) calculated for the details of discrete wavelets transform (DWT) of EEG signal. then a genetic algorithm is used for feature selection. During the experiment classification is conducted on a single trial of EEG signals. the proposed novel method of feature extraction using HOS and DWT gives more accurate results then the algorithm based on discrete Fourier transform (DFT).
this paper introduces the design and implementation of a Wi-Fi wireless meter reading system. the design of management software and wireless terminal including hardware and embedded software are introduced in detail. ...
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this paper proposed system design scheme, and introduced how to use a MCU to control every module. then, we make the analysis and evaluation of the performance, have some summary and prospect for the key problems.
ISBN:
(纸本)9781849195393
this paper proposed system design scheme, and introduced how to use a MCU to control every module. then, we make the analysis and evaluation of the performance, have some summary and prospect for the key problems.
As the development of image technology, Large scale and fast focal plane array (FPA) are needed for a new class of spectrum diverse sensors. Because of the requirement of high-resolution and high sample rate for the F...
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the proceedings contain 338 papers. the topics discussed include: outage probability and average capacity research on wireless optical communication over turbulence channel;design and implementation of highly efficien...
ISBN:
(纸本)9781424481590
the proceedings contain 338 papers. the topics discussed include: outage probability and average capacity research on wireless optical communication over turbulence channel;design and implementation of highly efficient resistance measurement system for DSL splitter;phase offset compensation algorithm simulation of OFDM;study on refraction character of astigmatic optical system with matrix method;study on the servo system of large telescope based on the internal model PID control strategy;a rate convergence scalable congestion control algorithm;skin texture-enhancement for automated 3D point cloud generation in Charcot-Marie-tooth disease application;design of state-feedback controller by pole placement for a coupled set of inverted pendulums;novel method for blind constellation detection using template based classifier for quadrature digital modulation schemes;infrared helicopter rotor icing detection system and its DSP design;and pulse compression and super-continuum generation using cascaded higher-order solitons.
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