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| 1 | Optical and electrical properties of a spiral LED filament显示文摘This paper introduces a new type of spiral white light-emitting diodes(WLED) filament with high luminous efficiency and uniform optical performance. The optical and thermal properties of the flexible filament were investigated at different stretching heights, namely 0, 1, 2, and 3 cm. The results indicated that the filament showed the best optical characteristics at the stretching height of 2 cm, because of good heat dissipation. In addition, the radiation temperature of the filament was inversely proportional to the output luminous flux. The reliability of the filament at a stretching height of 2 cm was also evaluated after 1000 h of use. The result demonstrated that the luminous flux decay of the bulb was only 0.85%. The flexible spiral WLED filament exhibiting high luminous flux and good reliability could be adapted to promote industrial development in the near future. | Liping Wang Jun Zou Bobo Yang Wenbo Li Yang Li Mingming Shi Wei Zhu Canyun Zhang Fengchao Wang Yujie Lin | 2018 | Journal of Semiconductors2018，39，2： | 2 |
| 2 | Permanence of Periodic Predator-Prey System with Functional Responses and Stage Structrure for Prey显示文摘 | Huang Canyun Zhan Min Hou Haifeng | | 0，，： | 1 |
| 3 | Structural and elec- trical properties of nitrogen and aluminum codoped p - type ZnO films 显示文摘 | Zhang Canyun Li Xiaomin Bian Jiming | 2004 | Solid State Communications2004，132，2： | 1 |
| 4 | Per- manence of periodic predator-prey system with two predators and stage structure for prey 显示文摘 | HUANG Canyun ZHAO Min ZHAO Lichun | 2010 | Nonlinear Analysis: Real World Applications2010，11，1： | 1 |
| 5 | Nitrogen and Aluminum Codoped p-type ZnO Films and ZnO p n Homojunctions 显示文摘 | Zhang Canyun Li Xiaomin Bian Jiming | 2005 | Surface & Coatings Technology2005，198，： | 1 |
| 6 | 2.5D boundary element simulation of wave propagation in a vertical fluid-filled borehole with irregular shape显示文摘在这篇论文,在为处于声学的记载的问题与任意的形状为地上凿穿解决波浪方程的波浪数字空间领域的边界元素明确的表达被介绍。这个问题在垂直方向与分离波浪数字方法被当作二维的媒介。方法被比较这个方法获得,那些由有限差别的方法获得了的结果验证。方法被用来在垂直破裂的垂直地上凿穿在波浪繁殖上学习效果。为单极来源,为 Stoneley 波浪的分散曲线产出三个分支。为偶极子和四极来源,来源的不同取向产出不同结果。当偶极子来源对破裂直角时,当来源与破裂平行时,分散曲线类似于开的洞的,当曲线是相当不同的时。这些特征使我们能决定垂直破裂的取向。 | Ge Zengxi Wang Canyun Lei Ting Chen Xiaofei | 2007 | Applied Geophysics2007，4，3： | 1 |
| 7 | High-quality oriented ZnO films grown by sol-gel process assisted with ZnO seed layer显示文摘 | Zhang Canyun | 2010 | Journal of Physics and Chemistry of Solids2010，71，3： | 1 |
| 8 | Comment on “A numerical investigation of the acoustic mode waves in a deviated borehole penetrating a transversely isotropic formation”显示文摘In the paper'A numerical investigation of the acoustic mode waves in a deviated borehole penetrating a transversely isotropic formation'by Liu et al.[1]numerical experiments are reported for a dipole sonic logging scenario with a deviated borehole penetrating a VTI anisotropic medium.In such a situation it is important to clearly define the meaning of group and phase velocities as this has led to much confusion in the literature as discussed by Miller,Horne and Walsh[2]. | Steve A.Horne Douglas Miller CanYun Wang | 2016 | Science China(Physics,Mechanics & Astronomy)2016，59，8： | 0 |
| 9 | A Constraint Adaptive Multi-Tasking Differential Evolution Algorithm:Designed for Dispatch of Integrated Energy System in Coal Mine显示文摘The dispatch of integrated energy systems in coal mines(IES-CM)with mine-associated supplies is vital for efficient energy utilization and carbon emissions reduction.However,IES-CM dispatch is highly challenging due to its feature as multi-objective and strong multi-constraint.Existing constrained multi-objective evolutionary algorithms often fall into locally feasible domains with poorly distributed Pareto front,which greatly deteriorates dispatch performance.To tackle this problem,we transform the traditional dispatch model of IES-CM into two tasks:the main task with all constraints and the helper task with constraint adaptive.Then we propose a constraint adaptive multi-tasking differential evolution algorithm(CA-MTDE)to optimize these two tasks effectively.The helper task with constraint adaptive is developed to obtain infeasible solutions near the feasible domain.The purpose of this infeasible solution is to transfer guiding knowledge to help the main task move away from local search.Additionally,a dynamic dual-learning strategy using DE/current-to-rand/1 and DE/current-to-best/1 is developed to maintain task diversity and convergence.Finally,we comprehensively evaluate the performance of CA-MTDE by applying it to a coal mine in Shanxi Province,considering two IES-CM scenarios.Results demonstrate the feasibility of CA-MTDE and its ability to generate a Pareto front with exceptional convergence,diversity,and distribution. | Canyun Dai Xiaoyan Sun Hejuan Hu Yong Zhang Dunwei Gong | 2024 | Tsinghua Science and Technology2024，29，2： | 0 |
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