|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | A mechanically tuned Kerr comb in a dispersion-engineered silica microbubble resonator显示文摘This paper discusses the developement and investigation of a silica microbubble resonator(MBR) that is optimized to cancel mode dispersion with material dispersion, at a wavelength of approximately 1550 nm and maintain a quality factor of an optical mode as large as 5.4 × 10~7. Benefitting from the near-zero dispersion and high quality factor, a primary optical comb is generated in the MBR using cascaded four-wave mixing processes, which span over 300 nm with several tens of teeth. Furthermore, the frequency comb could be gradually tuned by mechanically stretching the MBR. This tunable Kerr comb has multiple potential applications in precision measurements and sensing applications, such as molecular spectroscopy and ranging. | FangJie Shu PeiJi Zhang YanJun Qian ZhengYu Wang Shuai Wan Chang Ling Zou GuangCan Guo ChunHua Dong | 2020 | Science China(Physics,Mechanics & Astronomy)2020，63，5： | 5 |
| 2 | Thymosin Alpha-1 Inhibits Complete Freund’s Adjuvant-Induced Pain and Production of Microglia-Mediated Pro-inflammatory Cytokines in Spinal Cord显示文摘Activation of inflammatory responses regulates the transmission of pain pathways through an integrated network in the peripheral and central nervous systems.The immunopotentiator thymosin alpha-1(Tal)has recently been reported to have anti-inflammatory and neuroprotective functions in rodents.However,how Tα1 affects inflammatory pain remains unclear.In the present study,intraperitoneal injection of Tal attenuated complete Freund's adjuvant(CFA)-induced pain hypersensitivity,and decreased the up-regulation of pro-inflammatory cytokines(TNF-α,IL-1β,and IL-6)in inflamed skin and the spinal cord.We found that CFA-induced peripheral inflammation evoked strong microglial activation,but the effect was reversed by Tα1.Notably,Tα1 reversed the CFA-induced up-regulation of vesicular glutamate transporter(VGLUT)and down-regulated the vesicular γ-aminobutyric acid transporter(VGAT)in the spinal cord.Taken together,these results suggest that Tα1 plays a therapeutic role in inflammatory pain and in the modulation of microgliainduced pro-inflammatory cytokine production in addition to mediation of VGLUT and VGAT expression in the spinal cord. | Yunlong Xu Yanjun Jiang Lin Wang Jiahua Huang Junmao Wen Hang Lv Xiaoli Wu Chaofan Wan Chuanxin Yu Wenjie Zhang Jiaying Zhao Yinqi Zhou Yongjun Chen | 2019 | Neuroscience Bulletin2019，35，4： | 4 |
| 3 | Controllable synthesis of argentum decorated CuO_(x)@CeO_(2) catalyst and its highly efficient performance for soot oxidation显示文摘In this paper,CuO_(x)@Ag/CeO_(2) catalysts were synthesized by simple wet-chemical method and equal volume impregnation method.The obtained catalysts were subjected to soot temperature programmed oxidation(soot-TPO)activity tests and were further characterized by various techniques such as X-ray diffraction(XRD),transmission electron microscopy/high-resolution transmission electron microscopy(TEM/HR-TEM),N_(2) physisorption,X-ray photoelectron spectroscopy(XPS)and H_(2)-temperature programmed reduction(H_(2)-TPR).The results show that CuO_(x)@Ag/CeO_(2) synthesized presents well controlled core-shell structures,with nano-cube like Cu_(2)O as the core and Ag decorated polycrystalline CeO_(2) grafting layers as the shell.Such core-shell structured CuO_(x)@Ag/CeO_(2) can successfully construct a secondary oxygen delivery channel(CuO_(x)→CeO_(2)→Ag)to effectively transfer bulk oxygen of the catalyst to the soot,resulting in its excellent soot oxidation activity compared to CuO_(x)@CeO_(2).The potential benefiting effect by Ag introduction over Cu@Ag/Ce can be concluded as:(ⅰ)pumping lattice oxygen and accelerating gaseous O_(2) dissociation to generate significantly increased active surface oxygen content;(ⅱ)modulating a moderate surface oxygen vacancies concentration to maintain more highly active O_(2) species. | Jie Wan Yanjun Liu Yuanyuan Zhou Han Liu Gongde Wu Jianfei Kan Min Li Duan Weng Xiaodong Wu | 2022 | Journal of Rare Earths2022，40，10： | 1 |
| 4 | Mechanical properties and fracture behaviors of epoxy composites with multi- scale rubber particles显示文摘 | Tang Longcheng Wang Xu Wan Yanjun | 2013 | Materials Chemistry and Physics2013，141，1： | 1 |
| 5 | Negative regulation of gamma-aminobutyric acid type A receptor on free calcium ion levels following facial nerve injury显示文摘Previous studies have demonstrated that muscarinic,and nicotinic receptors increase free Ca2+ levels in the facial nerve nucleus via various channels following facial nerve injury.However,intracellular Ca2+ overload can trigger either necrotic or apoptotic cell death.Gamma-aminobutyric acid(GABA),an important inhibitory neurotransmitter in the central nervous system,exists in the facial nerve nucleus.It is assumed that GABA negatively regulates free Ca2+ levels in the facial nerve nucleus.The present study investigated GABA type A(GABAA) receptor expression in the facial nerve nucleus in a rat model of facial nerve injury using immunohistochemistry and laser confocal microscopy,as well as the regulatory effects of GABAA receptor on nicotinic receptor response following facial nerve injury.Subunits α1,α3,α5,β1,β2,δ,and γ3 of GABAA receptors were expressed in the facial nerve nucleus following facial nerve injury.In addition,GABAA receptor expression significantly inhibited the increase in nicotinic receptor-mediated free Ca2+ levels in the facial nerve nucleus following facial nerve injury in a concentration-dependent fashion.These results suggest that GABAA receptors exhibit negative effects on nicotinic receptor responses following facial nerve injury. | Fugao Zhu Dawei Sun Yanqing Wang Rui Zhou Junfeng Wen Xiuming Wan Yanjun Wang Banghua Liu | 2010 | Neural Regeneration Research2010，5，22： | 1 |
| 6 | Mechanicalproperties and fracture behaviors of epoxy composites withmulti-scale rubber particles显示文摘 | Tang Longcheng Wang Xu Wan Yanjun | 2013 | Materials Chemistry and Physics2013，141，1： | 1 |
| 7 | Grafting of Epoxy Chains onto Graphene Oxide for Epoxy Composites with Improved Mechanical and Thermal Properties显示文摘 | Wan Yanjun Tang Longcheng Gong Lixiu | 2014 | Carbon2014，69，： | 1 |
| 8 | Me- chanical properties of epoxy composites filled with si- lane-functionalized graphene oxide 显示文摘 | Wan Yanjun Gong Lixiu Tang Longcheng | 2014 | Applied Science and Manufacturing2014，64，21： | 1 |
| 9 | Nicotine alpha 4 beta 2 receptor-mediated free calcium in an animal model of facial nucleus injury显示文摘Previous studies have demonstrated that the cholinergic system,via nicotinic receptors,regulates intracellular free calcium levels in the facial nucleus under normal physiological conditions.However,the regulation of nicotinic receptors on free calcium levels following facial nerve injury remains unclear.In the present study,an animal model of facial nerve injury was established,and changes in nicotinic receptor expression following facial nerve injury in rats were detected using reverse transcription polymerase chain reaction.Nicotinic receptor-mediated changes of free calcium levels following facial nucleus injury were determined by laser confocal microscopy.Results showed no significant difference in nicotinic receptor expression between the normal group and the affected facial nerve nucleus.The nicotinic receptor α4β2 subtype increased free calcium levels following facial nerve injury by promoting calcium transmembrane influx,and L-type voltage-gated calcium channel-mediated influx of calcium ions played an important role in promoting calcium transmembrane influx.The nicotinic receptor-mediated increase of free calcium levels following facial nerve injury provides an important mechanism for the repair of facial nerve injury. | Dawei Sun Wenhai Sun Yanqing Wang Fugao Zhu Rui Zhou Yanjun Wang Banghua Liu Xiuming Wan Huamin Liu | 2010 | Neural Regeneration Research2010，5，19： | 1 |
| 10 | Effect of Cu loading content on the catalytic performance of Cu-USY catalysts for selective catalytic reduction of NO with NH_(3)显示文摘Series of Cu-USY zeolite catalyst with different Cu loading content were synthesized through simple impregnation method.The obtained catalysts were subjected to selective catalytic reduction of NOxwith NH_(3)(NH_(3)-SCR) performance evaluation,structural/chemical characterizations such as X-ray diffraction (XRD),N2adsorption/desorption,H_(2)temperature-programmed reduction (H_(2)-TPR),NH_(3)temperature-programmed desorption (NH_(3)-TPD) as well as detailed in situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) experiments including CO adsorption,NH_(3)adsorption and NO+O_(2)in situ reactions.Results show that Cu-USY with proper Cu loading (in this work 5Cu-USY with5 wt.%Cu) could be promising candidates with highly efficient NH_(3)-SCR catalytic performance,relatively low byproduct formation and excellent hydrothermal stability,although its SO_(2)poisoning tolerability needs alleviation.Further characterizations reveal that such catalytic advantages can be attributed to both active cu species and surface acid centers evolution modulated by Cu loading.On one hand,Cu species in the super cages of zeolites increases with higher Cu content and being more conducive for NH_(3)-SCR reactivity.On the other hand,higher Cu loading leads to depletion of Br?nsted acid centers and simultaneous formation of abundant Lewis acid centers,which facilitates NH_(4)NO_(3)reduction via NH_(3)adsorbed on Lewis acid centers,thus improving SCR reactivity.However,Cu over-introduction leads to formation of surface highly dispersed CuOx,causing unfavorable NH_(3)oxidation and inferior N2selectivity. | Jie Wan Haipeng Yang Yijun Shi Yanjun Liu Jin Zhang Jun Zhang Gongde Wu Renxian Zhou | 2023 | Journal of Environmental Sciences2023，，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员