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| 1 | Study on High-power LED Heat Dissipation Based on Printed Circuit Board显示文摘In order to study the role of printed circuit board(PCB)in high-power LED heat dissipation,a simple model of high-power LED lamp was designed.According to this lamp model,some thermal performances such as thermal resistances of four types of PCB and the changes of LED junction temperature were tested under three different working currents.The obtained results indicate that LED junction temperature can not be lowered significantly with the decreasing thermal resistance of PCB.However,PCB with low thermal resistance can be matched with smaller volume heat sink,so it is hopeful to reduce the size,weight and cost of LED lamp. | WANG Yiwei ZHANG Jianxin NIU Pingjuan LI Jingyi | 2010 | Semiconductor Photonics and Technology2010，16，2： | 2 |
| 2 | Recent Advances in Microbial Raw Starch Degrading Enzymes显示文摘 | Haiyan Sun Pingjuan Zhao Xiangyang Ge Yongjun Xia Zhikui Hao Jianwen Liu Ming Peng | 2010 | Applied Biochemistry and Biotechnology2010，，4： | 2 |
| 3 | Fractal antenna engineering the theory and design of fraetal antennaarrays 显示文摘 | DOUGLAS H W RANDY L H PINGJUAN L W | 1999 | IEEE Antennas And l'ropagtation Magazine1999，，5： | 1 |
| 4 | 'A second-order temperature compensated Bandgap Re- ference for Analog-to-Digital Converter' 显示文摘 | Junru Liu Pingjuan Tiecheng Gao | 2010 | Interna- tional Conference On Computer Design And Appliations( ICCDA )2010，，： | 1 |
| 5 | Radiation Pattern Synthesis for Arrays of Conformal Antennas Mounted on Arbitrarily-Shaped Three- Dimensional Platforms Using Genetic Algorithms 显示文摘 | Rene J A Douglas H W Pingjuan L W | 2003 | IEEE Transactions on Antennas and Propagation2003，51，2： | 1 |
| 6 | Simulation and Design of a High Responsibility PIN Photodetector显示文摘A silicon-based PIN photodetector structure with the characteristics of high responsibility and high cut-off frequency fabricated with the PERL(the passivated emitter and the rear locally-diffused)technologies is introduced in this paper.After making some tiny adjustments of the structure,Silvaco software is used to simulate three similar structures of PIN photodetector by measuring the spectral response,dark current,cut-off frequency and dc characteristics.From the results,it is concluded that PIN photodetector with the middle shallow diffusion area is superior to the other two ones in dark current,at least 35% lower.The responsibility of these three kinds of detector reaches the degree of 0.3A/W,and the highest spectral response is around 600nm.Their cut-off frequencies are all over 108Hz. | GENG Boyun LI Xiaoyun NIU Pingjuan | 2010 | Semiconductor Photonics and Technology2010，16，2： | 1 |
| 7 | Infrared absorption spectrum studies of the VO defect in fast-neutronirradiated Czochralski silicon 显示文摘 | Yang Shuai Li Yangxian Ma Qiaoyun Liu Lili Xu Xuewen Niu Pingjuan Li Yongzhang Niu Shengli Li Hongtao | 2005 | Journal of Crystal Growth2005，，： | 1 |
| 8 | Application of maltitol toimprove production of raw starch digesting glucoamylase by Aspergillus niger F-08显示文摘 | SUN Haiyan ZHAO Pingjuan PENG Ming | 2008 | World Journal of Microbiology and Biotechnology2008，24，： | 1 |
| 9 | Deep-subwavelength light transmission in hybrid nanowire-loaded silicon nano-rib waveguides显示文摘Hybrid plasmonic waveguides leveraging the coupling between dielectric modes and plasmon polaritons have emerged as a major focus of research attention during the past decade. A feasible way for constructing practical hybrid plasmonic structures is to integrate metallic configurations with silicon-on-insulator waveguiding platforms. Here we report a transformative high-performance silicon-based hybrid plasmonic waveguide that consists of a silicon nano-rib loaded with a metallic nanowire. A deep-subwavelength mode area(λ~2/4.5 × 10~5-λ~2/7 × 10~3), in conjunction with a reasonable propagation distance(2.2-60.2 μm), is achievable at a telecommunication wavelength of 1.55 μm. Such a nano-rib-based waveguide outperforms its conventional hybrid and plasmonic waveguiding counterparts, demonstrating tighter optical confinement for similar propagation distances and a significantly enhanced figure of merit. The guiding properties of the fundamental mode are also quite robust against possible fabrication imperfections. Due to the strong confinement capability, our proposed hybrid configuration features ultralow waveguide cross talk and enables submicron bends with moderate attenuation as well. The outstanding optical performance renders such waveguides as promising building blocks for ultracompact passive and active silicon-based integrated photonic components. | YUSHENG BIAN QIANG REN LEI KANG TAIWEI YUE PINGJUAN L.WERNER DOUGLAS H.WERNER | 2018 | Photonics Research2018，9，1： | 1 |
| 10 | Fractal antenna engineering the theory and design of fractal antenna arrays 显示文摘 | Wemar Douglas H Haupt Randy L Werner Pingjuan L | 1999 | IEEE Antennas and PropagationMagazine1999，41，5： | 1 |
| 11 | Fractal antenna engineering, the theory and design of fractal antenna arrays 显示文摘 | Wernar Douglas H Haupt Randy L Werner Pingjuan L | 1999 | IEEE Antennas and Propagation Magazine1999，41，5： | 1 |
| 12 | Application of maltitol to improve production of raw starch digesting glucoamylase by Aspergillus niger F-08显示文摘 | Sun Haiyan Zhao Pingjuan Peng Ming | 2008 | World J Microbiol Biotechnol2008，24，： | 1 |
| 13 | Recent advances in microbial raw starch degrading enzymes显示文摘 | Sun Haiyan ZHAO Pingjuan | 2010 | Appl Biochem Biotechnol2010，160，： | 1 |
| 14 | Fractal antenna en-gineering: The Theory and Design of Fr-Actal Antenna Arrays 显示文摘 | Douglas H W Randy L H Pingjuan L W | 1999 | IEEE Antennas And Propagation Magazine1999，，： | 1 |
| 15 | Selection and Identification of a Cellulase-producing Strain显示文摘[Objective] This study aimed to identify a cellulase-producing strain selected from tropical rain forestry soils. [Method] Morphologic observation and sequence analysis of 18S rDNA were conducted. [Result] A cellulase-producing strain with high activity was obtained, and morphology of the strain was highly similar to that of Trichoderma reesei. Results of sequence analysis show that the 18S rDNA sequence shares 99% homology with Hypocrea jecorina. [Conclusion] The isolated cellulase-producing strain belongs to Trichoderma reesei. | Haiyan SUN Pingjuan ZHAO Juanhua LI Enshi LIU Ming PENG | 2012 | Agricultural Biotechnology2012，1，2： | 0 |
| 16 | Linear Active Disturbance Rejection Control and Stability Analysis for Modular Multilevel Converters Under Weak Grid显示文摘The modular multilevel converters(MMCs) are popularly used in high-voltage direct current(HVDC) transmission systems. However, for the direct modulation based MMC, its complex internal dynamics and the interaction with the grid impedance would induce the frequency coupling effect, which may lead to instability issues, especially in the case of weak grid. To effectively suppress the sub-and super-synchronous oscillations, this paper proposes a linear active disturbance rejection control(LADRC) based MMC control strategy. The LADRC mainly consists of the linear extended state observer(LESO) and the linear state error feedback(LSEF). And it is a potential method to enhance the system stability margin, attributing to its high anti-interference capability and good tracking performance. Thereupon, the system small-signal impedance model considering frequency coupling is established. And the effect of the introduction of the LADRC on the system stability is further investigated using the Nyquist criterion. Particularly, the influences of key control parameters on the stability are discussed in detail. Meanwhile, the impact of LADRC on the transient performance is explored through closed-loop zero poles. Finally, the correctness of the theoretical analysis and the effectiveness of the proposed control strategy are verified via electromagnetic simulations. | Hailiang Xu Mingkun Gao Pingjuan Ge Jiabing Hu | 2023 | Journal of Modern Power Systems and Clean Energy2023，11，6： | 0 |
| 17 | Cell signaling during drought and/or cold stress in cassava显示文摘Cassava(Manihot esculenta Crantz)is a root crop significant in food security and various bio-industrial applications such as animal feed,modified starch,and biofuels.Drought and cold stress are two major factors limiting cassava production qualitatively and quantitatively,for which plants have evolved mechanisms to overcome the impact of these two stressors.In recent years,significant progress has been achieved in understanding the response mechanism of cassava plants to stress signals to tolerate the above stresses.In this review,core stress-signaling pathways,including transcription factor(TF)-related regulatory networks,plant hormone signaling,reactive oxygen species(ROS)scavenging,and non-coding RNA(ncRNA)and alternative splicing(AS)that modify gene expression levels in response to drought and/or cold stress in cassava,are summarized.Understanding these stress signaling and responses will increase our ability to improve the crops tolerance to multiple stresses for agricultural sustainability and food security for the growing world population. | Shuxia Li Pingjuan Zhao Xiaoling Yu Wenbin Liao Ming Peng Mengbin Ruan | 2022 | Tropical Plants2022，1，1： | 0 |
| 18 | A homeodomain-leucine zipper I transcription factor, MeHDZ14,regulates internode elongation and leaf rolling in cassava(Manihot esculenta Crantz)显示文摘Drought stress impairs plant growth and other physiological functions. MeHDZ14, a homeodomainleucine zipper I transcription factor, is strongly induced by drought stress in various cassava cultivars.However, the role of MeHDZ14 in cassava growth regulation has remained unclear. Here we report that MeHDZ14 affected plant height, such that a dwarf phenotype and altered internode elongation were observed in transgenic cassava lines. MeHDZ14 was found to negatively regulate the biosynthesis of lignin. Its overexpression resulted in abaxially rolled leaves. The morphogenesis of leaf epidermal cells was inhibited by overexpression of MeHDZ14, with decreased auxin and gibberellin and increased cytokinin contents. MeHDZ14 was found to regulate many drought-responsive genes, including genes involved in cell wall synthesis and expansion. MeHDZ14 bound to the promoter of caffeic acid 3-Omethyltransferase 1(MeCOMT1), acting as a transcriptional repressor of genes involved in cell wall development. MeHDZ14 appears to act as a negative regulator of internode elongation and epidermal cell morphogenesis during cassava leaf development. | Xiaoling Yu Xin Guo Pingjuan Zhao Shuxia Li Liangping Zou Wenbin Li Ziyin Xu Ming Peng Mengbin Ruan | 2023 | The Crop Journal2023，11，5： | 0 |
| 19 | Down-regulation of MeMYB2 leads to anthocyanin accumulation and increases chilling tolerance in cassava(Manihot esculenta Crantz)显示文摘Chilling-induced accumulation of reactive oxygen species(ROS) is harmful to plants,which usually produce anthocyanins to scavenge ROS as protection from chilling stress.As a tropical crop,cassava is hypersensitive to chilling,but the biochemical basis of this hypersensitivity remains unclear.We previously generated Me MYB2-RNAi transgenic cassava with increased chilling tolerance.Here we report that Me MYB2-RNAi transgenic cassava accumulated less ROS but more cyanidin-3-O-glucoside than the wild type under early chilling stress.Under this stress,the anthocyanin biosynthesis pathway was more active in Me MYB2-RNAi lines than in the wild type,and several genes involved in the pathway,including Me TT8,were up-regulated by Me MYB2-RNAi in the transgenic cassava.Me MYB2 bound to the Me TT8 promoter and blocked its expression under both normal and chilling conditions,thereby inhibiting anthocyanin accumulation.Me TT8 was shown to bind to the promoter of Dihydroflavonol 4-reductase(Me DFR-2)and increased Me DFR-2 expression.Me MYB2 appears to act as an inhibitor of chilling-induced anthocyanin accumulation during the rapid response of cassava to chilling stress. | Xin Guo Xiaohui Yu Chenyu Lin Pingjuan Zhao Bin Wang Liangping Zou Shuxia Li Xiaoling Yu Yinhua Chen Peng Zhang Ming Peng Mengbin Ruan | 2023 | The Crop Journal2023，11，4： | 0 |
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