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| 1 | Effect of different film color mulching on dry matter and grain yield of oil flax in dry-land显示文摘Mulching can effectively maintain soil moisture;color of mulching film affects soil water storage capacity and further promote crop growth to improve grain yield.Field experiment was conducted to study effects of different film colors on dry matter accumulation(DMA)and grain yield of oil flax.Results showed that white plastic film mulching could increase leaf area,chlorophyll content and DMA.DMA of white film mulching and micro-ridge with soil covering was 53.0%higher than that of CK,and 7.8%higher than that of black film mulching.Mulching method also influenced DMA.Micro-ridge alone increased it by 13.7%than flat cultivation and soil covering improved another 7.6%under white film mulching.Both white and black film mulching with microridge could significantly improve grain yield.Black film mulching with micro-ridge and soil covering,white film mulching with micro-ridge and no soil covering significantly increased capsule number per plant,1,000-grain weight and grain yield of oil flax,compared with CK.Grain yield increased 29.0%and 28.9%respectively.These results indicated that the above mulching methods were suitable for high yield cropping pattern in dry-farming regions. | Yuhong Gao Ying Li Yingze Wang Bing Wu Jia Ke Junyi Niu Lizhuo Guo | 2020 | Oil Crop Science2020,5,2: | 2 |
| 2 | Influence of hierarchical ZSM-5 catalysts with various acidity on the dehydration of glycerol to acrolein显示文摘The main challenge in the dehydration of glycerol to acrolein lies in overcoming catalystdeactivation and improving the selectivity to acrolein. The relationship between theacidity in the mesoporous channels and catalytic performance of glycerol dehydration israrely reported. In this work, to investigate the influence of acidity in the mesoporouschannels of hierarchical ZSM-5 catalysts on the dehydration of glycerol to acrolein, a seriesof hierarchical ZSM-5 zeolites with comparable mesoporous volume and mesoporous sizebut different acid properties in mesopores have been successfully prepared via alkalinetreatment. The sample with the abundant mesoporosity and highest acidity display thebest performance. | Shufang Zhao Songlin He Kyung Du Kim Lizhuo Wang Ryong Ryoo Zichun Wang Jun Huang | 2021 | Magnetic Resonance Letters2021,1,1: | 1 |
| 3 | A restraining multipath effect method for the measurement of insertion loss of underwater acoustic materials显示文摘A method suppressing multipath effect when measuring the underwater acoustic materials in a reverberant field is proposed, which is called 'virtual end-fire array method'.To weaken the coherence of the same-frequency reflection interference of each path, signal of different phases at different positions was transmitted by a single transducer in the simulation design, and a sharp directionality in the direction of the array length was formed. All signals at the above positions were superimposed to eliminate the clutters. The insertion loss(IL) of the material was finally calculated by extracting the desired waveforms. In the measured frequency range of 3–20 k Hz, the aluminum plate with size of 1.1 m × 1.0 m × 8 mm and the round aluminum plate with 0.5 m in diameter and 8 mm in thickness were measured in a reverberant tank with size of 5.5 m × 3.5 m × 3.5 m. Results showed the measured lowest effective frequency limit can be reduced by the virtual end-fire array technique compared with the conventional method.In the measurement of round aluminum plate and rectangular aluminum plate, errors in the effective measurement band was less than 0.5 d B and the interference of the acoustic multipath propagation effects was reduced effectively. The ability of the transducer in reverberant tank to measure acoustic materials has been improved after implementing this method. | SUN Min WANG Yuebing ZHENG Huifeng ZHAO Peng WU Lizhuo | 2020 | Chinese Journal of Acoustics2020,39,2: | 0 |
| 4 | Interface catalytic reduction of alumina by nickle for the aluminum nanowire growth: Dynamics observed by in situ TEM显示文摘Metal nanowires show promise in a broad range of applications and can be fabricated via a number of methods,such as vapor–liquid–solid process and template-based electrodeposition.However,the synthesis of Al nanowires(NWs)is still challenging from the stable alumina substrate.In this work,the Ni-catalyzed fabrication of Al NWs has been realized using various Al_(2)O_(3) substrates.The growth dynamics of Al NWs on Ni/Al_(2)O_(3) was studied using in situ transmission electron microscopy(TEM).The effect of alumina structures,compositions,and growth temperature were investigated.The growth of Al NWs correlates with the Na addition to the alumina support.Since no eutectic mixture of nickel aluminide was formed,a mechanism of Ni-catalyzed reduction of Al_(2)O_(3) for Al NWs growth has been proposed instead of the vapor–liquid–solid mechanism.The key insights reported here are not restricted to Ni-catalyzed Al NWs growth but can be extended to understanding the dynamic change and catalytic performance of Ni/Al_(2)O_(3) under working conditions. | Zichun Wang Dan Wang Ang Li Lizhuo Wang Xiaodong Han Yijiao Jiang Jianfeng Chen Jun Huang | 2024 | Nano Research2024,17,3: | 0 |
| 5 | Construction of hollow mesoporous silica nanoreactors for enhanced photo-oxidations over Au-Pt catalysts显示文摘It is highly desirable to design hollow structures with multi-scale functions by mimicking cells for the construction of micro/nanoreactors.Herein,we report the construction of hollow-structured submicrometer-photoreactors with bimetallic catalysts loaded within mesoporous silicas.The synthesis parameters are optimized to study the evolution of hollow structure through hydrothermal treatment and an‘adhesive-contraction’formation mechanism is proposed.AuPt@HMZS catalysts exhibited a broader absorbance region under visible light and the adsorption edge displayed a red-shift,indicating the strong metal-metal interactions at the alloy interface.The reaction performance of the coupled Au-Pt catalysts can be tuned to achieve excellent catalytic activity in cinnamyl alcohol oxidation to cinnamic acid for 3.1 mmol g^-1 with 99%selectivity.The proposed strategy to build hollow structures as multifunctional micro/nanoreactors is promising for the design of high-performance and sustainable catalysts for chemical synthesis. | Hao Tian Jinhui Zhao Xinyao Wang Lizhuo Wang Hao Liu Guoxiu Wang Jun Huang Jian Liu G.Q.(Max)Lu | 2020 | National Science Review2020,7,11: | 0 |
| 6 | Intramolecular Charge Transfer-Enhanced BODIPY Photosensitizer in Photoinduced Electron Transfer and Its Application to Photoxidation under Mild Condition显示文摘Photoinduced 电子转移过程是在 photooxidation 的一个关键步骤获得合成化学药品。然而,当在所有的优先级很少在逐步的详细被学习了,电子的驱动力转。此处,我们报导有 intramolecular 上的一个重音的一系列 BODIPY 衍生物控告转移,提高 photoinduced 电子转移过程和 photooxidation 表演的关键步骤。一系列新奇 BODIPY photosensitizers (B-1-B-5 ) 被准备,充电注射组被结合到 2,6-diiodo-styryl-BODIPY 的 B-3 氨基的 diethylamine,和电子在那里转移动力,由于它的更否定的氧化还原作用潜力被提高 1.6 次。这些结果被 DFT/TDDFT 计算也证实。没有纯氧, B-3 能仍然在温和状况下面在 1,4-DHP 的 photoxidative aromatization 展出非凡的表演。在为 28 min 的照耀以后,变换率来到了 98.2% 。 | Ruiqin Wang Ying Geng Lili Zhang Wenting Wu Weiyu Fan Zhongtao Li Lizhuo Wang Liying Zhan Xueyan Wu Mingbo Wu | 2015 | Chinese Journal of Chemistry2015,33,11: | 0 |