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| 1 | Grain-size reduction of feldspar and flow of deformed granites within the Gaoligong shear zone, southwestern Yunnan, China显示文摘Mineral deformation and rock flow mechanism in the lithosphere are related to the rheological behavior and weakening mechanism of the continent. Natural deformation behaviors of feldspars are not well understood due to the complexity of their mineral compositions, crystal structures, as well as changing deformation conditions. The refined microstructure,fabric and composition of major minerals in the deformed granitic rocks within the Gaoligong shear zone(GLGSZ), southwestern Yunnan, China, were studied. With increasing mylonitization, two fabric types of end-members have been distinguished(type-I banded granitic mylonite and type-II banded ultramylonite). The two types of deformed granitic rocks have the same mineral assemblage, but different mineral modes. The type-I banded granitic mylonite has a greater proportion of K-feldspar(mostly present as porphyroclasts)>plagioclase>quartz±biotite, however, the type-II banded ultramylonite has a greater proportion of fine-grained plagioclase>K-feldspar>quartz±biotite. The crystallographic preferred orientation(CPO) patterns of quartz combined with two-feldspar geothermometer, confirm that the quartz grains in the type-I and type-II granitic rock have undergone high-temperature dislocation creep deformation. The K-feldspar grains in the matrix of type-II banded ultramylonite show a dominant(100)[010] slip system with dislocation creep recrystallization, while the fine-grained plagioclase grains present a weak CPO pattern with superplastic flow. The K-feldspar porphyroclasts show grain-size reduction associated with mineral composition and fabric transformation. The myrmekite formation with the fine-grained neocrystallization of plagioclase and quartz significally replaced the K-feldspar porphyroclasts. Finally, the fine-grained neocrystallization plagioclases were formed further into the high strain localized ultramylonites with superplastic flow. | Yanlong DONG Shuyun CAO Xuemei CHENG Junlai LIU Hanchen CAO | 2019 | Science China Earth Sciences2019，62，9： | 6 |
| 2 | A first-principles study of dihydroazulene as a possible optical molecular switch显示文摘By applying nonequilibrium Green's function formalism combined with first-principles density functional theory, we investigate the electronic transport properties of the dihydroazulene optical molecular switch. Three kinds of adsorption sites including the hollow, bridge and top sites are studied. The two forms of this molecule, namely the open form and the closed form, can reversibly switch from each other upon photoexcitation. Their transmission spectra are remarkably distinctive. Theoretical results show that the current of the closed form is always significantly larger than that of the open form for all three adsorption sites, which promises this system as possibly one of the good candidates for optical switches due to its unique advantage, and which may have some potential applications in the future molecular circuit. | XIA CaiJuan LIU DeSheng LIU HanChen | 2011 | Science China(Physics,Mechanics & Astronomy)2011，54，3： | 2 |
| 3 | Nonreciprocal coherent coupling of nanomagnets by exchange spin waves显示文摘Nanomagnets are widely used to store information in non-volatile spintronic devices.Spin waves can transfer information with low-power consumption as their propagations are independent of charge transport.However,to dynamically couple two distant nanomagnets via spin waves remains a major challenge for magnonics.Here we experimentally demonstrate coherent coupling of two distant Co nanowires by fast propagating spin waves in an yttrium iron garnet thin film with sub-50 nm wavelengths.Magnons in two nanomagnets are unidirectionally phase-locked with phase shifts controlled by magnon spin torque and spin-wave propagation.The coupled system is finally formulated by an analytical theory in terms of an effective non-Hermitian Hamiltonian.Our results are attractive for analog neuromorphic computing that requires unidirectional information transmission. | Hanchen Wang Jilei Chen Tao Yu Chuanpu Liu Chenyang Guo Song Liu Ka Shen Hao Jia Tao Liu Jianyu Zhang Marco A.Cabero Z Qiuming Song Sa Tu Mingzhong Wu Xiufeng Han Ke Xia Dapeng Yu Gerrit E.W.Bauer Haiming Yu | 2021 | Nano Research2021，14，7： | 1 |
| 4 | Schwoebel-Ehrlich barrier, from two to three dimensions显示文摘 | Liu Shaojun Huang Hanchen Woo C H | 2002 | Appl Phys Lett2002，80，18： | 1 |
| 5 | 黑蒜提取液对恶性黑色素瘤B16细胞中Akt和PTEN表达的影响及意义(英文)显示文摘Objective: The aim of this study was to investigate the effect on Akt and PTEN expression and the mechanism of proliferation and apoptosis of melanoma B16 cells treated with chamaejasme extract. Methods: The expressions of Akt and PTEN of B16 cells treated with different concentrations of chamaejasme extract were detected with immunohistochemical method, cell apoptosis index(AI) was calculated with in situ labeling method. Results: Akt expressions of B16 cells treated with different concentrations of chamaejasme extract were significantly lower than the control group, while the PTEN expressions significantly up-regulated, and the effects appeared to be dose-related(P < 0.05). The Akt/AI of B16 cells treated with different concentrations of chamaejasme extract was significantly lower than the control group, all the parameters had extremely difference(F = 24.58, P < 0.05). Conclusion: Chamaejasme extract can inhibit proliferation and induce apoptosis of malignant melanoma B16 cells by down-regulating the expression of Akt and up-regulating the expression of PTEN. | Yuezhi Zhang Hanchen Liu Mengwen Li Lijun Kong | 2014 | The Chinese-German Journal of Clinical Oncology2014，13，12： | 1 |
| 6 | Photodegradation-Induced Turn-On Luminescence of Tetraphenylethylene-Based Trithiocarbonate Polymers显示文摘Main observation and conclusion Fluorescent intelligent materials have attracted wide attention because of their great potential applications.One major hurdle for the development and application of fluorescent intelligent materials is the aggregation-caused quenching effect in the solid state.Herein,tetraphenylethylene-based trithiocarbonate polymers with satisfactory molecular weights(Mw up to 24900)were synthesized through a one-pot polymerization route under mild conditions.The polymers were non-emissive due to the quenching effect of the trithiocarbonate group.However,upon UV irradiation,the polymers degraded and strong emission from the tetraphenylethylene unit was observed.Such a unique property endows them with great potential applications,such as photopatterning,anti-counterfeit labels,and UV detection. | Hanchen Shen Wenjie Wu Shunjie Liu Jing Zhang Jacky WYLam Ben Zhong Tang | 2021 | Chinese Journal of Chemistry2021，39，10： | 0 |
| 7 | The functions of exosomes targeting astrocytes and astrocyte-derived exosomes targeting other cell types显示文摘Astrocytes are the most abundant glial cells in the central nervous system;they participate in crucial biological processes,maintain brain structure,and regulate nervous system function.Exosomes are cell-derived extracellular vesicles containing various bioactive molecules including proteins,peptides,nucleotides,and lipids secreted from their cellular sources.Increasing evidence shows that exosomes participate in a communication network in the nervous system,in which astrocyte-derived exosomes play important roles.In this review,we have summarized the effects of exosomes targeting astrocytes and the astrocyte-derived exosomes targeting other cell types in the central nervous system.We also discuss the potential research directions of the exosome-based communication network in the nervous system.The exosome-based intercellular communication focused on astrocytes is of great significance to the biological and/or pathological processes in different conditions in the brain.New strategies may be developed for the diagnosis and treatment of neurological disorders by focusing on astrocytes as the central cells and utilizing exosomes as communication mediators. | Hongye Xu He Li Ping Zhang Yuan Gao Hongyu Ma Tianxiang Gao Hanchen Liu Weilong Hua Lei Zhang Xiaoxi Zhang Pengfei Yang Jianmin Liu | 2024 | Neural Regeneration Research2024，19，9： | 0 |
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