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| 1 | Scalable and ultrafast epitaxial growth of single-crystal graphene wafers for electrically tunable liquid-crystal microlens arrays显示文摘The scalable growth of wafer-sized single-crystal graphene in an energy-efficient manner and compatible with wafer process is critical for the killer applications of graphene in high-performance electronics and optoelectronics. Here, ultrafast epitaxial growth of single-crystal graphene wafers is realized on singlecrystal Cu90Ni10(1 1 1) thin films fabricated by a tailored two-step magnetron sputtering and recrystallization process. The minor nickel(Ni) content greatly enhances the catalytic activity of Cu, rendering the growth of a 4 in. single-crystal monolayer graphene wafer in 10 min on Cu90Ni10(1 1 1), 50 folds faster than graphene growth on Cu(1 1 1). Through the carbon isotope labeling experiments, graphene growth on Cu90Ni10(1 1 1) is proved to be exclusively surface-reaction dominated, which is ascribed to the Cu surface enrichment in the Cu Ni alloy, as indicated by element in-depth profile. One of the best benefits of our protocol is the compatibility with wafer process and excellent scalability. A pilot-scale chemical vapor deposition(CVD) system is designed and built for the mass production of single-crystal graphene wafers, with productivity of 25 pieces in one process cycle. Furthermore, we demonstrate the application of single-crystal graphene in electrically controlled liquid-crystal microlens arrays(LCMLA), which exhibit highly tunable focal lengths near 2 mm under small driving voltages. By integration of the graphene based LCMLA and a CMOS sensor, a prototype camera is proposed that is available for simultaneous light-field and light intensity imaging. The single-crystal graphene wafers could hold great promising for highperformance electronics and optoelectronics that are compatible with wafer process. | Bing Deng Zhaowei Xin Ruiwen Xue Shishu Zhang Xiaozhi Xu Jing Gao Jilin Tang Yue Qi Yani Wang Yan Zhao Luzhao Sun Huihui Wang Kaihui Liu Mark H. Rummeli Lu-Tao Weng Zhengtang Luo Lianming Tong Xinyu Zhang Changsheng Xie Zhongfan Liu Hailin Peng | 2019 | Science Bulletin2019，64，10： | 4 |
| 2 | Study on the technology for highway construction and engineering practices in permafrost regions显示文摘In order to systemically summarize and integrate technology of highway construction in permafrost regions on the Qinghai-Tibet Plateau,we studied disciplines and mechanisms of formation and development of problems and challenges in highway engineer-ing in high-altitude permafrost regions based on construction experiences for 50 years and on 30 years of research regarding the Qinghai-Tibet and Xikang highways.Embankments,pavements,bridges,and countermeasures for ecosystem protection in per-mafrost regions were the main study objects.We combined extensive analysis of key problems of engineering stability with inter-action between permafrost and highways,theoretical models,indoor tests,and field tests to reveal the interaction between em-bankments,pavements,bridge piles,and permafrost.In this paper,we propose a series of engineering measures for highway sta-bility,design parameters,key indexes for pavement durability in low temperature,relationships between re-freezing time of bridge-pile foundation and strength development as well as ecosystem recovery in high-latitude cold regions;these eventually form a construction technology package for permafrost regions. | ShuangJie Wang JianBing Chen JiLin Qi | 2009 | Research in Cold and Arid Regions2009，1，5： | 3 |
| 3 | Analysis on the Settlement of Roadway Embankments in Permafrost Regions显示文摘In permafrost regions, the embankment settlement results from several physical and mechanical processes taking place in the different soil layer, making its mechanism very complicated. Under the thermal influence of embankment, climate warming as well as geothermal source, permafrost may degrade downwards or upwards, which continuously changes the thicknesses of the permafrost layer and the also unfrozen soil layers. Thus, any attempt to analyze the embankment settlement seems to be very troublesome and difficult. In this paper, based on ground temperatures of embankment sections in five typical regions along the Qinghai-Tibet Highway(QTH), the trends of variation of different soil layers and the thermal gradients are investigated. On this basis, four types of sections, which can represent most of the sections of QTH, are deduced to clarify the possible settlement sources in different soil layers. In order to further confirm and investigate of the settlement sources, an embankment model test was carried out. Combing the in-situ monitoring data with the results from the model test, the main settlement sources in embankment settlement are discussed for the four types of sections respectively. The results will facilitate the analysis of embankment settlement in permafrost regions. | Fan Yu Jilin Qi Xiaoliang Yao | 2014 | Journal of Earth Science2014，25，4： | 3 |
| 4 | Separation of Samarium(Ⅲ) and Gadolinium(Ⅲ) by A Push-pull Liquid Membrane System显示文摘SeparationofSamarium(Ⅲ)andGadolinium(Ⅲ)byAPush┐pulLiquidMembraneSystemYANGGuang-hui*(DepartmentofChemistry,EducationColegeofJ... | YANG Guang hui * (Department of Chemistry, Education College of Jilin Province, Changchun, 130022) LI Ming yu, TANG Qi hong and GUO Dong hong (Department of Chemistry, Henan University, Kaifeng, 475001) WANG Xiang de and ZHANG Xiu juan | 1997 | Chemical Research in Chinese Universities1997，13，4： | 2 |
| 5 | IMPROVEMENT OF NONREPUDIABLE THRESHOLD MULTI-PROXY THRESHOLD MULTI-SIGNATURE SCHEME WITH SHARED VERIFICATION显示文摘In 2005, Bao, et al. [Appl. Math. and Comput., vol.169, No.2, 2005] showed that Tzeng, et al.’s nonrepudiable threshold multi-proxy multi-signature scheme with shared verification was insecure, and proposed an improved scheme with no Share Distribution Center (SDC). This paper shows that Bao, et al.’s scheme suffers from the proxy relationship inversion attack and forgery attack, and pro- poses an improvement of Bao, et al.’s scheme. | Xie Qi Wang Jilin Yu Xiuyuan | 2007 | Journal of Electronics(China)2007，24，6： | 2 |
| 6 | Influence of freeze-thaw on engineering properties of a silty soil显示文摘 | QI Jilin MA Wei SONG Chunxia | 2008 | Cold Regions Science and Technology2008，53，： | 1 |
| 7 | Settlement of em- bankments in permafrost regions in the Qinghal-Tibet Plateau 显示文摘 | Qi Jilin Sheng Yu Zhang Jianming | 2007 | Norwegian Journal of Geography2007，61，： | 1 |
| 8 | Influence of freeze–thaw on the stored free energy in soils显示文摘 | Xiaoliang Yao Jilin Qi Wei Ma | 2008 | Cold Regions Science and Technology2008，，2： | 1 |
| 9 | Influence of freeze–thaw on engineering properties of a silty soil显示文摘 | Jilin Qi Wei Ma Chunxia Song | 2007 | Cold Regions Science and Technology2007，，3： | 1 |
| 10 | A new criterion for strength of frozen sand un- der quick triaxial compression considering effect of confining pressure 显示文摘 | Qi Jilin Ma Wei | 2007 | Acta Geotechnical2007，2，： | 1 |
| 11 | Laboratory Investigation of the Heat Transfer Characteristics of a Trapezoidal Crushed-Rock Layer Under Impermeable and Permeable Boundaries显示文摘 | Mingyi Zhang Yuanming Lai Wenbing Yu Jilin Qi | 2006 | Experimental Heat Transfer2006，，4： | 1 |
| 12 | Study on thaw consoli- dation of permafrost under roadway embankment 显示文摘 | Qi Jilin Yao Xiaoliang Yu Fan | 2012 | Cold Re- gions Science and Technology2012，81，： | 1 |
| 13 | Strength distributions of warm frozen clay and its stochastic damage constitutive model显示文摘 | LAI YUANMING LI SHUANGYANG QI JILIN | 2008 | Cold Regions Science and Technology2008，53，2： | 1 |
| 14 | Consolidation of thawing per- mafrost considering phase change 显示文摘 | Qi Jilin Yao Xiaoliang Yu Fan | 2013 | KSCE Journal of Civil Engineering2013，17，6： | 1 |
| 15 | A Simple Method Designed for the Separation of Biotinylated Ligate from Free Biotin显示文摘IntroductionDuringtheprocesofbiotinlabeling,theseparationofbiotinylatereagentfrombiotiny-latedproteinisanessentialstep,especi... | LI Tian yu, ZHOU Chang cheng, FANG Rui, QI Jie, ZHOU Hui and LI Wei (Department of Life Science, Jilin University, Changchun, 130023) | 1998 | Chemical Research in Chinese Universities1998，14，4： | 1 |
| 16 | Influence of Freeze-Thaw on Engineering Properties of a Silty Soil显示文摘 | QI Jilin MA W SONG C | 2008 | Journal of Cold Regions Science and Technology2008，53，3： | 1 |
| 17 | Development of a Rapid Design System for Aerial Work Truck Subframe with UG Secondary Development Framework显示文摘 | Liu Xinhua Li Qi Liu Youhui Yin Jilin | 2011 | Procedia Engineering2011，，： | 1 |
| 18 | In situ experimental study on thermal protection effects of the insulation method on warm permafrost显示文摘 | Zhi Wen Yu Sheng Wei Ma Jilin Qi | 2007 | Cold Regions Science and Technology2007，，3： | 1 |
| 19 | Evaluation of EPS application to embankment of Qinghai–Tibetan railway显示文摘 | Wen Zhi Sheng Yu Ma Wei Qi Jilin | 2004 | Cold Regions Science and Technology2004，，3： | 1 |
| 20 | Influence of freeze–thaw on engineering properties of a silty soil显示文摘 | Jilin Qi Wei Ma Chunxia Song | 2007 | Cold Regions Science and Technology2007，，3： | 1 |
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