您的检索：
学者姓名：赵艳
精炼检索结果：
年份
成果类型
收录类型
来源
综合
曾用名
合作者
语言
清除所有精炼条件
摘要 ：
一种片上集成的微波光子相位编码信号生成系统涉及微波光子技术领域。系统包含激光器、功分器、射频RF开关、90°混合耦合器HC、双平行双偏振马赫‑曾德尔调制器DP‑DPMZM、偏振相关级联相位调制器PDC‑PM、偏振光片、掺铒光纤放大器和光电探测器。本方法将本振LO信号通过功分器分成两部分，其中一部分输入到X‑DPMZM中，获得LO信号的载波抑制+1阶边带。另一部分由RF开关控制，当RF开关断开时，Y‑DPMZM仅输出光载波；当RF开关闭合时，Y‑DPMZM输出LO信号的‑1阶边带。然后，两路偏振正交信号输入到PDC‑PM，该PDC‑PM由两个独立的编码信号驱动，当改变编码信号振幅和模式时，经过光电探测器可获得载波频率等于或两倍于LO信号频率的二元或四元相位编码信号。
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 赵艳 , 尹晶 , 杨登才 et al. 一种片上集成的微波光子相位编码信号生成系统 : CN202310145456.6[P]. | 2023-02-21 . |
| MLA | 赵艳 et al. "一种片上集成的微波光子相位编码信号生成系统" : CN202310145456.6. | 2023-02-21 . |
| APA | 赵艳 , 尹晶 , 杨登才 , 杨锋 . 一种片上集成的微波光子相位编码信号生成系统 : CN202310145456.6. | 2023-02-21 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Surface-enhanced Raman spectroscopy (SERS) is an ultra-sensitive analytical tool that can effectively detect and identify molecules by their unique vibrational fingerprints. Development of SERS substrates with good stability, high sensitivity and reproducibility is still a big challenge in practical applications. Recently, 2D materials/metallic hybrid SERS substrates provide a new prospect to improve the SERS performance. Here, we obtain a monolayer MoS2 covered silver nanoparticle (AgNP) array as a high-performance SERS substrate. Annealing temperature-dependent SERS signals on the hybrid substrate have been explored. The optimum SERS performance was obtained at 290 t (the detection limit of 10(13) M for Rhodamine 6G and the corresponding SERS enhancement factor of 8.3 x 10(9)), which is attributed to the better contact between AgNPs and MoS2 and the uniform AgNPs with appropriate particle sizes. The prepared MoS2/AgNPs hybrid substrates also have been utilized to detect various molecules, which demonstrates a great potential for applications in food safety and biochemical environmental detection. (C) 2022 Elsevier B.V. All rights reserved.
关键词 ：
2D materials 2D materials Silver nanoparticle array Silver nanoparticle array Annealing temperature Annealing temperature SERS SERS
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Li, Muhua , Liu, Yanqi , Liu, Xuan et al. Annealing Temperature-Dependent Surface-Enhanced Raman spectroscopy on MoS2-Covered silver nanoparticle array [J]. | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY , 2022 , 275 . |
| MLA | Li, Muhua et al. "Annealing Temperature-Dependent Surface-Enhanced Raman spectroscopy on MoS2-Covered silver nanoparticle array" . | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 275 (2022) . |
| APA | Li, Muhua , Liu, Yanqi , Liu, Xuan , Zhang, Yongzhi , Zhu, Tiying , Feng, Chao et al. Annealing Temperature-Dependent Surface-Enhanced Raman spectroscopy on MoS2-Covered silver nanoparticle array . | SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY , 2022 , 275 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
A hybrid membrane is employed as a high-order plasmonic distributed feedback (DFB) cavity to reduce the lasing threshold of polymer lasers. The hybrid membrane consists of an anodic aluminum oxide (AAO) membrane, a 25 nm thick silver layer and a free-standing polymer membrane. The AAO membrane is fabricated by a low-cost, single chemical etching method. Then, a layer of silver with a thickness of 25 nm is sputtered on the surface of the AAO. Subsequently, a polymer membrane is directly attached to the silver-plated AAO membrane, forming an AAO/silver/polymer hybrid membrane. Under optical pumping conditions, low-threshold, three-order DFB lasing is observed. The proposed laser device exhibited a dual-threshold characteristic because of the evolution from amplified spontaneous emission to DFB lasing. And a significant shift from omnidirectional emission to directional emission lasing can be observed while the pump energy density is beyond the second threshold. Furthermore, the plasmonic enhancement sourced from silver corrugation reveals important improvement effects to the DFB lasing of AAO/silver/polymer hybrid membrane for decreasing threshold, narrowing full width at half maximum (FWHM), and an increasing Q factor. This work may promote the design and production of low-cost and large-area high-order plasmonic DFB polymer lasers. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Feng, Chao , Tong, Junhua , Cui, Libin et al. Plasmonic distributed feedback lasing in an anodic aluminum oxide/silver/polymer hybrid membrane [J]. | OPTICS EXPRESS , 2022 , 30 (16) : 28589-28600 . |
| MLA | Feng, Chao et al. "Plasmonic distributed feedback lasing in an anodic aluminum oxide/silver/polymer hybrid membrane" . | OPTICS EXPRESS 30 . 16 (2022) : 28589-28600 . |
| APA | Feng, Chao , Tong, Junhua , Cui, Libin , Zhao, Yan , Zhai, Tianrui . Plasmonic distributed feedback lasing in an anodic aluminum oxide/silver/polymer hybrid membrane . | OPTICS EXPRESS , 2022 , 30 (16) , 28589-28600 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
本发明公开了一种基于阵列结构实现多通道共载频相位编码信号系统及方法，适用于基于光子技术的多通道、独立高速相位编码信号产生，以便于分布式光纤传输。该方法涉及微波光子技术领域。系统包括激光器(LD)、双平行偏振复用马赫曾德尔调制器(DP‑DPMZM)、多通道光耦合器(Coupler)、偏振相关相位调制器(DP‑PM)、光偏振片(Pol)、光电探测器(PD)。本方法将本振(LO)信号通过90°电桥输入到DP‑DPMZM上臂中，调节偏置电压实现LO信号的载波抑制一阶边带输出，与下路的正交偏振光载波信号偏振合束，再经过多通道光耦合器分束，分别输入到多个相同的偏振相关相位调制器中，多路独立相位编码序列分别加载到偏振相关相位调制器上，完成对正交偏振态光信号的相位进行调制，最后通过Pol和PD拍频后获得多通道共载频相位编码信号。
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 杨登才 , 尹晶 , 赵艳 et al. 一种基于阵列结构实现多通道共载频相位编码系统及方法 : CN202210649640.X[P]. | 2022-06-09 . |
| MLA | 杨登才 et al. "一种基于阵列结构实现多通道共载频相位编码系统及方法" : CN202210649640.X. | 2022-06-09 . |
| APA | 杨登才 , 尹晶 , 赵艳 , 王智勇 , 杨锋 . 一种基于阵列结构实现多通道共载频相位编码系统及方法 : CN202210649640.X. | 2022-06-09 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
一种基于多孔阳极氧化铝的大面积彩色图案制备方法涉及多孔阳极氧化铝模板技术领域。本发明利用纳米压印技术与阳极氧化法相结合的方式在同一样品上制备具有不同孔隙率的多孔阳极氧化铝薄膜，并采用磁控溅射或真空蒸镀等方法在多孔阳极氧化铝薄膜上沉积不同厚度的银层，在短时间内实现低成本、大面积，且具有多种颜色的彩色图案。该研究将大幅度降低设计结构彩色所需要的时间和经济成本，为结构色的批量生产奠定基础。
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | 赵艳 , 刘萱 , 冯超 et al. 一种基于多孔阳极氧化铝的大面积彩色图案制备方法 : CN202211028474.8[P]. | 2022-08-25 . |
| MLA | 赵艳 et al. "一种基于多孔阳极氧化铝的大面积彩色图案制备方法" : CN202211028474.8. | 2022-08-25 . |
| APA | 赵艳 , 刘萱 , 冯超 , 尹晶 . 一种基于多孔阳极氧化铝的大面积彩色图案制备方法 : CN202211028474.8. | 2022-08-25 . |
| 导入链接 | NoteExpress RIS BibTex |
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Zhang, Zhenghao , Zhao, Yan , Wu, Shikai et al. Optimization of butt welding of zinc-coated thin sheets with oscillating fiber laser beams: weld formation, microstructure, and mechanical properties (Jul, 10.1007/s40194-021-01162-8, 2021) [J]. | WELDING IN THE WORLD , 2021 , 65 (11) : 2253-2253 . |
| MLA | Zhang, Zhenghao et al. "Optimization of butt welding of zinc-coated thin sheets with oscillating fiber laser beams: weld formation, microstructure, and mechanical properties (Jul, 10.1007/s40194-021-01162-8, 2021)" . | WELDING IN THE WORLD 65 . 11 (2021) : 2253-2253 . |
| APA | Zhang, Zhenghao , Zhao, Yan , Wu, Shikai , Lu, Hongtao . Optimization of butt welding of zinc-coated thin sheets with oscillating fiber laser beams: weld formation, microstructure, and mechanical properties (Jul, 10.1007/s40194-021-01162-8, 2021) . | WELDING IN THE WORLD , 2021 , 65 (11) , 2253-2253 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Shear walls of cold-formed steel (CFS) with high aspect ratios could be used in buildings with large openings such as doors and windows. However, the performance of CFS shear walls with high aspect ratios remains unclear due to limited test data. This research aimed to explore the mechanic performance and strength reduction factor of CFS shear walls with high aspect ratios through an experimental study. Five full-scale specimens were tested under monotonic loading, and the failure mechanism, bearing capacity, stiffness, ductility, and energy dissipation of the specimens were obtained. The test results indicated that shear walls with small aspect ratios typically fail as a result of connection damage to horizontal seams and corners, whilst shear walls with high aspect ratios commonly buckle at both the end stud and bottom track. As the aspect ratio increased, the initial stiffness and capacity decreased, while the energy dissipation per unit length increased due to greater flexibility. Ultimately, this study proposes a more reasonable design formula for strength reduction factors based upon a regression analysis of the test data. This will facilitate a more sustainable design approach, and fulfills current standards in engineering practice.
关键词 ：
Shear capacity Shear capacity Strength reduction factor Strength reduction factor Cold-formed steel shear wall Cold-formed steel shear wall High aspect ratios High aspect ratios Experimental study Experimental study
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Yan, Zhao , Cheng, Yu , Shicai, Chen et al. Shear performance of cold-formed steel shear walls with high-aspect-ratios [J]. | STRUCTURES , 2021 , 33 : 1193-1206 . |
| MLA | Yan, Zhao et al. "Shear performance of cold-formed steel shear walls with high-aspect-ratios" . | STRUCTURES 33 (2021) : 1193-1206 . |
| APA | Yan, Zhao , Cheng, Yu , Shicai, Chen , Ziqin, Jiang , Wenying, Zhang . Shear performance of cold-formed steel shear walls with high-aspect-ratios . | STRUCTURES , 2021 , 33 , 1193-1206 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
Owing to the increasing energy demands, direct small-molecule fuel cells, such as ethanol and formate fuel cells, have attracted great attention. During the operation of the fuel cell, noble metal catalysts are widely used to accelerate the reaction kinetics by alloying with other materials. However, there are a few facile methods for improving elemental metal catalytic activity. In this work, the defect-rich palladium (Pd) aerogels are acquired by laser ablating technology, which can significantly improve the intrinsic activity of Pd elementary catalysts through introducing defects and lattice strain. The electrochemical results show that the mass and specific activities of the obtained Pd aerogel for the formate oxidation reaction are 2.26 and 1.99 times higher than those of the commercial Pd/C. The excellent activity and stability of the Pd aerogel for ethanol oxidation reaction have also been demonstrated. The effect of the compressive strain is further investigated by density functional theory (DFT) calculations. It has been found that the compressive strain weakens the adsorption strength of the intermediates, which can facilitate the desorption of toxic specifics. The laser-assisted synthesis of defect-rich aerogel paves a way in optimizing the structure of the elemental metal catalysts and improving their intrinsic catalytic activity.
关键词 ：
laser ablation laser ablation electrocatalysts electrocatalysts gelation gelation defect defect three-dimensional three-dimensional
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Zhang, Ran , Zhu, Liye , Liu, Xuan et al. Laser-Assisted Synthesis of Pd Aerogel with Compressive Strain for Boosting Formate and Ethanol Electrooxidation [J]. | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2021 , 9 (23) : 7837-7845 . |
| MLA | Zhang, Ran et al. "Laser-Assisted Synthesis of Pd Aerogel with Compressive Strain for Boosting Formate and Ethanol Electrooxidation" . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING 9 . 23 (2021) : 7837-7845 . |
| APA | Zhang, Ran , Zhu, Liye , Liu, Xuan , Zhu, Jiayin , Zhao, Yan . Laser-Assisted Synthesis of Pd Aerogel with Compressive Strain for Boosting Formate and Ethanol Electrooxidation . | ACS SUSTAINABLE CHEMISTRY & ENGINEERING , 2021 , 9 (23) , 7837-7845 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
In this study, ZnO ceramics with two types of TPMS structure (Gyroid structure and Schwartz P structure) were fabricated by 3D printing. The solid content of ZnO ceramics powder was 38 wt%. The solid content of SR454NS Acrylic was 57 wt%. The other components of the slurry were photoinitiator, dispersant and sintering additive. The ZnO ceramics with high densification could be achieved after sintering at 1250 ?C for 2 h. The average grain size was 37 ?m and the true density of the printed ZnO ceramics was 4.95 g/cm3. The shape of printed ZnO ceramics can be controlled and the minimum size of thin rod is 200 ?m. The compressive strength for Gyroid structural ZnO ceramic with 55% porosity and the Schwartz P structural ZnO ceramic was approximately 6.87 MPa and 4.02 MPa, respectively. The result shows that the Gyroid structural ZnO ceramics can bear much more deformation than the Schwartz P structure during the compression tests. The TPMS structural ZnO ceramics can be used in the field of sensing and detection in the future.
关键词 ：
3D printing 3D printing ZnO ZnO Mechanical property Mechanical property TPMS structure TPMS structure Ceramic Ceramic
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Lu, Jiaxiong , Dong, Peng , Zhao, Yongtao et al. 3D printing of TPMS structural ZnO ceramics with good mechanical properties [J]. | CERAMICS INTERNATIONAL , 2021 , 47 (9) : 12897-12905 . |
| MLA | Lu, Jiaxiong et al. "3D printing of TPMS structural ZnO ceramics with good mechanical properties" . | CERAMICS INTERNATIONAL 47 . 9 (2021) : 12897-12905 . |
| APA | Lu, Jiaxiong , Dong, Peng , Zhao, Yongtao , Zhao, Yan , Zeng, Yong . 3D printing of TPMS structural ZnO ceramics with good mechanical properties . | CERAMICS INTERNATIONAL , 2021 , 47 (9) , 12897-12905 . |
| 导入链接 | NoteExpress RIS BibTex |
摘要 ：
The effect of KrF excimer laser irradiation on the optical and electrical properties of epitaxial wafers with a p-GaN surface were investigated at different laser energy densities and pulse numbers. The laser-irradiated samples were annealed in oxygen. The laser irradiation-induced changes in optical and electrical properties of GaN epitaxial wafers were examined using PL, I-V, XPS, SIMS, and Hall effect measurements. Experimental results show that under an appropriate laser-irradiated condition, optical and electrical properties of the samples were improved to different degrees. The samples which were annealed after laser irradiation have better electrical properties such as the hole concentration and sheet resistance than those without annealing. We hypothesize that the pulsed KrF excimer laser irradiation dissociates the Mg-H complexes and annealing treatment allows the hydrogen to diffuse out more completely under the oxygen atmosphere at a proper temperature, by which the crystalline symmetry of GaN is improved. Under appropriate laser conditions and O-2-activated annealing, the light output of the laser-irradiated GaN-based LED sample is about 1.44 times that of a conventional LED at 20 mA. It is found that the wall-plug efficiency is 10% higher at 20 mA and the reverse leakage current is 80% lower at 5 V.
关键词 ：
electrical property electrical property optical property optical property GaN epitaxial wafers GaN epitaxial wafers excimer laser irradiation excimer laser irradiation GaN-based LED GaN-based LED
引用：
复制并粘贴一种已设定好的引用格式，或利用其中一个链接导入到文献管理软件中。
| GB/T 7714 | Jiang, Yijian , Tan, Haoqi , Zhao, Yan . Improving Optical and Electrical Properties of GaN Epitaxial Wafers and Enhancing Luminescent Properties of GaN-Based Light-Emitting-Diode with Excimer Laser Irradiation [J]. | SYMMETRY-BASEL , 2021 , 13 (10) . |
| MLA | Jiang, Yijian et al. "Improving Optical and Electrical Properties of GaN Epitaxial Wafers and Enhancing Luminescent Properties of GaN-Based Light-Emitting-Diode with Excimer Laser Irradiation" . | SYMMETRY-BASEL 13 . 10 (2021) . |
| APA | Jiang, Yijian , Tan, Haoqi , Zhao, Yan . Improving Optical and Electrical Properties of GaN Epitaxial Wafers and Enhancing Luminescent Properties of GaN-Based Light-Emitting-Diode with Excimer Laser Irradiation . | SYMMETRY-BASEL , 2021 , 13 (10) . |
| 导入链接 | NoteExpress RIS BibTex |
导出
| 数据： |
选中 到 |
| 格式： |
