A kind of multilayered heat-insulated coating fabric, which can efficiently cuts off the heat generated by sunlight, is made by coating multilayered materials with different functions on fabric surface. Coating material composition, coating process and compatible equipment based on heat-insulated theory are all researched. The result shows that heat-insulated coating fabric bears good heat insulation effect, and the temperature difference between the surface of heat-insulated coating fabric and its inner environment reaches up to over 15 Celsius.
Position equation of 3-RRC parallel mechanism is established and its position direct and inverse solution is solved. The mechanism rate equation is established and its kinematics analysis is done. The result shows that it is easier to solve the kinematics inverse solution of the parallel mechanism.
In allusion to the stability of transferring between grid-connected and off-grid state in micro-grid, this paper introduces the seamless switching technology, analyzes the key technologies of seamless switching and the existing problems, and gets the conclusion about research status of seamless switching.
Abstract-With the continuous development of the social economy, the energy demands of the whole society become larger and larger. Energy shortage and environmental pollution have attracted widespread attention. Under the circumstance of higher energy consumption and the heavy pollution of the traditional electrical power generation, the new energy emerges as the times require. Wind power and solar power will become the new energy industry in the key development areas of development planning. The development of stand-alone power supply of distributed PV and wind energy complemented generation system is outlined with respect to reliability and marketability. This paper introduces the wind power generation technology, solar power generation technology fuel cell power generation technology and biogas power generation technology. Through the simulation, researchers assess the effect of new energy on load wave peak and valley. The research laid the foundation for later practice. Keywords-energy; environmental pollution; electrical; wind power; solar power (key words) I. INTRODUCTION New energy is a kind of renewable energy, including solar energy, biomass energy, wind energy, geothermal energy, wave energy, ocean current, and tidal power. In addition, coal, oil, natural gas, water and energy have been widely used, which are known as the conventional energy resources. With the limitations of conventional energy and the environment problems, new energy gets more and more world attentions. Development of new energy is taken into account due to energy crisis and environmental pollution, and wind power technology as the fastest growing clean energy is especially popular.A new energy may form an industry in China, mainly including water energy (mainly refers to the small hydropower station), wind energy, biomass energy, solar energy, geothermal energy, these clean energy may be recycled. The development of new energy industry is not only the effective supplementary means for the whole energy supply system, but also an important measure of environmental and ecological protection; it is the final
Surface defects of cathode filaments of microwave magnetron would cause magnetron failure and scrapped microwave systems. Therefore, surface defects on cathode filaments must be carefully inspected. Conventionally, filaments are manually and visually inspected using their amplified images under an optical microscope. This is because automatic defect detection of cathode filaments is a challenging problem. The difficulty comings from its complex surface shape with multiple turns of high curvature spiral circles, which occlude each other. Such complex shape prevents capturing of sharp focusing images, which are essential for a computerized automatic detection algorithm. Further, the variable nature of production defects complicated the process of automatic defect detection task. To solve these problems, this paper proposes an automatic defect detection method to deal with issues related to complex shapes containing occlusions as well as high curvatures, particularly for the quality inspection of spiral shaped cathode filaments. The method includes a novel digital scanner, which sequentially brings all sections of the filament sides into sharp focusing of the optical imaging system. The method also employs multiple optical systems to imaging multi-sides of the spiral filament. The computational algorithm primarily uses line-detectors. In an evaluation experiment, the proposed method was used to automatically inspect over 14 million cathode filaments. Experimental results indicate that its false negative rate was 0.0065%, and its false positive rate was 6.83%. This indicates that the proposed method could successfully detect all kinds of surface defects at over 99.99% accuracy. It reduces the workload for manual inspection from 100% down to 93.17%, over an order of magnitude reduction. Further, the efficiency of the proposed method is 70 spiral filaments per minute, satisfying the requirements of online quality detection of existing manufacturing lines of filament cathodes.
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