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70 Gbps PAM-4850-nm oxide-confined VCSEL without equalization and pre-emphasis

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Journal of Semiconductors 2024年第5期45卷 5-7页

作者： Anjin liu Bao Tang zhiyong li Wanhua Zheng Key Laboratory of Optoelectronic Materials and Devices Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China Accelink technologies co. LtdWuhan 430205China Key Laboratory of Solid-State Optoelectronics Information Technology Institute of SemiconductorsChinese Academy of SciencesBeijing 100083China

Directly modulated 850-nm vertical-cavity surface-emitting lasers(VCSELs)with the advantages of low cost,high modulation speed,good reliability,and low power consumption,are the key sources in the optical interconnects with multimode fibers for the supercomputers,data centers,and machine learning applications[1−3].Typically,non-return-tozero(NRZ)modulation format is used.

关键词： return confined fibers

Effect of the Filling liquid Ratio on the Thermal Performance of a Novel Thermal Diode with Wick

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Journal of Thermal Science 2024年第2期33卷 396-407页

作者： li zhiyong MING Tingzhen ZHANG Heyu ZHAO Sitong WANG Qinggang CAI Cunjin YIN Kui FANG Yueping WU Yongjia School of Civil Engineering and Architecture Wuhan University of TechnologyWuhan430070China Sanya Science and Education Innovation Park Wuhan University of TechnologySanya572004China Deparment of Four Station Logistics AcademyXuzhou221000China School of Energy Construction and EnvironmentCoventry UniversityPriory StreetCoventryCV15FBUK

The application of thermal diodes,which allow heat to flow more readily in one direction than the other,is an important way to reduce energy consumption in buildings and enhance the battery heat dissipation of electric *** on various factors including the specific design,materials used,and operating conditions,the convective thermal diode can exhibit the best thermal rectification effect in intended applications compared to the other thermal *** this study,a novel convective thermal diode with a wick was proposed based on the phase change heat transfer *** design takes advantage of both capillary forces provided by the wick and gravity to achieve enhanced unidirectional heat transfer performance for the designed convective thermal *** effect of the filling liquid ratio on the thermal performance of the thermal diode was experimentally investigated,which was in good agreement with the theoretical *** research findings showed that with an optimal liquid filling ratio of 140%,the thermal diode with a wick can achieve a better thermal rectification ratio when subjected to a lower heating power,and the maximum thermal rectification ratio of 21.76 was experimentally achieved when the heating power of the thermal diode was 40 W.

关键词： filling liquid ratio thermal diode wick structure gravity

Electric tuning of plasmonic resonances in ultrathin gold nanoribbon arrays

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Photonics Research 2024年第8期12卷 1750-1759页

作者： ZHENXIN WANG ALEXEY VKRASAVIN CHENXINYU PAN JUNSHENG ZHENG zhiyong li XIN GUO ANATOLY VZAYATS liMIN TONG PAN WANG State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and EngineeringZhejiang UniversityHangzhou 310027China Department of Physics and London Centre for Nanotechnology King’s College LondonStrandLondon WC2R 2LSUK Jiaxing Key Laboratory of Photonic Sensing&Intelligent Imaging Intelligent Optics&Photonics Research CenterJiaxing Research Institute Zhejiang UniversityJiaxing 314000China

Ultrathin plasmonic nanostructures offer an unparalleled opportunity for the study of light–matter interactions at the nanoscale and realization of compact nanophotonic *** this study,we introduce an ultrathin gold nanoribbon array and demonstrate an electric approach to actively tuning its plasmonic resonance,which leveraging the extreme light confinement capability in the ultrathin plasmonic nanostructure and a robust nanoscale electro-optical effect in indium tin *** the design(to a total thickness as small as 12 nm for a 2-nmthick gold nanoribbon array),we numerically demonstrate a spectral shift in the plasmonic resonance up to 36 nm along with an approximately 16%change in the transmission at a gate voltage below 1.7 V at the wavelength of1.47μ*** work presents progress towards electric tuning of plasmonic resonances in ultrathin metallic nanostructures for various applications including surface-enhanced spectroscopy,spontaneous emission enhancement,and optical modulation.

关键词： plasmon tuning realization

RACK1A promotes hypocotyl elongation by scaffolding light signaling components in Arabidopsis

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Journal of Integrative Plant Biology 2024年第5期66卷 956-972页

作者： Yajuan Fu Wei Zhu Yeling Zhou Yujing Su zhiyong li Dayan Zhang Dong Zhang Jinyu Shen Jiansheng liang Key Laboratory of Molecular Design for Plant Cell Factory of Guangdong Higher Education Institutes Department of BiologySchool of Life SciencesInstitute of Plant and Food SciencesSouthern University of Science and TechnologyShenzhen 518055China

Plants deploy versatile scaffold proteins to intricately modulate complex cell *** these,RACK1A(Receptors for Activated C Kinase 1A)stands out as a multifaceted scaffold protein functioning as a central integrative hub for diverse signaling ***,the precise mechanisms by which RACK1A orchestrates signal transduction to optimize seedling development remain largely ***,we demonstrate that RACK1A facilitates hypocotyl elongation by functioning as a flexible platform that connects multiple key components of light signaling ***1A interacts with PHYTOCHROME INTERACTING FACTOR(PIF)3,enhances PIF3 binding to the promoter of BBX11 and down-regulates its ***,RACK1A associates with ELONGATED HYPOCOTYL 5(HY5)to repress HY5 biochemical activity toward target genes,ultimately contributing to hypocotyl *** darkness,RACK1A is targeted by CONSTITUTIVELY PHOTOMORPHOGENIC(COP)1 upon phosphorylation and subjected to COP1-mediated degradation via the 26 S proteasome *** findings provide new insights into how plants utilize scaffold proteins to regulate hypocotyl elongation,ensuring proper skoto-and photo-morphogenic development.

关键词： Arabidopsis hypocotyl development light signaling components RACK1 scaffoldprotein

Multi-gene engineering boosts oil content in rice grains

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Plant Communications 2024年第2期5卷 15-18页

作者： Xixi liu zhiyong li Jiezheng Ying Yazhou Shu Wanning liu Guanghao li lijuan Chen Jinjin Luo Shiyi Wang Yifeng Wang Xiaohong Tong Jie Huang Hao Du Jian Zhang State Key Laboratory of Rice Biology and Breeding China National Rice Research InstituteHangzhou 311400China College of Agriculture and Biotechnology Zhejiang UniversityHangzhouChina

Dear Editor,lipids are the essential building blocks of cellular membranes and act as signaling molecules to modulate various biological processes such as membrane remodeling and intracellular organelle *** addition,lipids serve as storage forms of carbon and energy for the human diet(Suh et al.,2022).Because global consumption of plant-derived oils is estimated to reach 249 million tons by 2031,improvements in the yield of vegetable oils are urgently needed(OECD,2022).

关键词： boost grains content

A weak allele of TGW5 enables greater seed propagation and efficient size-based seed sorting for hybrid rice production

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Plant Communications 2024年第4期5卷 137-140页

作者： Jiezheng Ying Yaobing Qin Fengyong Zhang liu Duan Peng Cheng Man Yin Yifeng Wang Xiaohong Tong Jie Huang zhiyong li Xianjun Song Jian Zhang State Key Lab of Rice Biology and Breeding China National Rice Research InstituteHangzhou 311400China State Key Laboratory of Biocatalysis and Enzyme Engineering School of Life SciencesHubei UniversityWuhan 430062China Key Laboratory of Plant Molecular Physiology Institute of Botanythe Chinese Academy of SciencesBeijing 100093China These authors contributed equally to this article

Dear Editors,Heterosis utilization is an effective way to improve crop *** rice typically out-yield inbred rice varieties by 10%and show better stress resistance,and they have been widely adopted in Asian countries since the 1980s(Cheng et al.,2007).To produce rice F1 hybrid seeds(HSDs),male sterile lines(MSLs)are grown side by side with restorer lines(RLs)in order to receive the RL *** seed production system faces challenges in maintaining the seed purity of the HSDs owing to the physical proximity of MSL and RL plants in the ***,MSLs and RLs are planted in alternate rows to enable physical separation of seeds during harvesting.

关键词： planted sterile enable

中国式乡村基建的模式与路径——基于资源约束和行政能力的分析框架

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学习论坛 2024年第4期 101-108页

作者：李智永中共河南省委党校经济学教研部河南郑州450046

中国乡村基建的模式大体上有政府主导、PPP和村民自建三种。尽管这三种模式的影响因素各不相同,但都可归类于资源约束和行政能力两个方面。按照资源约束的松紧和行政能力的强弱,可以把所有地区划分为松资源约束强行政能力、紧资源约束... 详细信息

中国乡村基建的模式大体上有政府主导、PPP和村民自建三种。尽管这三种模式的影响因素各不相同,但都可归类于资源约束和行政能力两个方面。按照资源约束的松紧和行政能力的强弱,可以把所有地区划分为松资源约束强行政能力、紧资源约束强行政能力、松资源约束弱行政能力和紧资源约束弱行政能力四种类型,除第四种地区不适合任何模式外,其他三种类型的地区分别适合采用不同的模式。更进一步地说,资源所在的领域以及行政能力在各层级政府之间的分布,决定了三种基建模式的不同适用场景。另外,在乡村基建过程中,资源约束和行政能力在一定范围内呈替代关系,且边际替代率递增。因此,乡村基建的最优路径应该是“强弱项、补短板”,根据各地的不同情况,有针对性地增加资源投入或加强行政能力建设,使地方处于资源丰富和行政能力强的状态,而单纯只注重其中一个方面的投入,只能是“事倍功半”。

关键词：乡村基建资源约束行政能力模式与路径

Metabolomics Analysis of the Effects of Chelerythrine on Ustilaginoidea virens

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Metabolomics Analysis of the Effects of Chelerythrine on Ust...

燃速催化剂对小喉径长工作时间燃气发生器喷管沉积的影响

中国植物病理学会2024年学术年会

作者： WEI Qinghui ZHAI Xihai SONG Weifeng li zhiyong PAN Yaqing li Baoying JIAO Zhanli SHI Zhenghao YU Jiangtao Institute of Plant Protection Heilongjiang Academy of Agricultural Sciences Yongyuan Town People's Government of Daowai District

Rice false smut(RFS),caused by Ustilaginoidea virens,is widely distributed in major rice-producing *** studies showed that treating RFS with chelerythrine can decrease fungus spore germination by 86.7% and induce fungal cell *** the present study,the effects of chelerythrine on the metabolism of *** were explored using metabolomics,and analysing differentially expressed genes and altered metabolic pathways.A total of 1 153 features(740 in positive ion mode,401 upregulated,339 downregulated;413 in negative ionisation mode,190 upregulated,223 downregulated).The top 15 metabolites in Random Forest analysis were significantly different between *** positive ion mode,purine metabolism(map00230),phenylalanine metabolism(map00360),phenylalanine,tyrosine and tryptophan biosynthesis(map00400),pyrimidine metabolism(map00240) and nitrogen metabolism(map00910) were ***,aspartate and glutamate metabolism(map00250) and phenylalanine metabolism(map00360) were enriched in negative ion *** expressed genes and altered metabolic pathways of *** were effected by *** findings support future research on the prevention and treatment of RFS by chelerythrine,and provide a theoretical basis for targeted drug delivery.

关键词： rice false smut chelerythrine Ustilaginoidea virens metabolomics UPLC-MS/MS

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固体火箭技术 2024年第2期47卷 231-236页

作者：占明明李志勇李泽军姚鲲李鑫航天化学动力技术重点实验室襄阳441003 湖北航天化学技术研究所襄阳441003

小喉径长时间工作燃气发生器易在喷管产生沉积。针对低燃温燃气发生剂配方中的燃速催化剂种类、含量对喷管沉积的影响,采用配方理论计算、药柱内弹道性能试验、喷管沉积物组成分析以及喷管温度场仿真模拟等手段进行了机理研究。结果表明... 详细信息

小喉径长时间工作燃气发生器易在喷管产生沉积。针对低燃温燃气发生剂配方中的燃速催化剂种类、含量对喷管沉积的影响,采用配方理论计算、药柱内弹道性能试验、喷管沉积物组成分析以及喷管温度场仿真模拟等手段进行了机理研究。结果表明:低燃温燃气发生剂中的燃速催化剂种类对喷管沉积存在较大影响,铁系燃速催化剂比含锌催化剂更易沉积;燃速催化剂含量越高,越容易出现沉积;喷管沉积主要成分为碳、铁元素,在燃气中的组成为FeCl_(2),其沉积机理是,在低燃温燃气发生器喷管的温度场下FeCl_(2)存在固液转化过程,其含量超过0.13%时,易在喷管处沉积。据此提出了降低含铁燃速催化剂的含量或采用无铁燃速催化剂的改善措施。

关键词：燃气发生剂燃速催化剂喷管沉积