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| 1 | Quantitative features of myoelectric signals in the orbicularis oculi muscle during different motion states显示文摘Artificial facial nerve prostheses are thought to restore eye-closed function in peripheral facial paralysis patients. At present,however,there is no adequate quantitative or qualitative information regarding myoelectric signal(MES) features for healthy orbicularis oculi muscle(OOM) . The present study analyzed MES features of normal OOM in rabbits during the natural continuous eye-opening(N1) state,natural continuous eye-closing(N2) state,natural blink(N3) state,and evoked eye-closing(E) state according to time domain and frequency domain analysis. Results showed that OOM electrical activities in N1 and N2 states,as well as myoelectric amplitude,were low and stable. Nevertheless,during N3 and E states,OOM electrical activities were significantly increased and amplitude was much higher in the E state than in the N3 state. In the time domain,differences in MES peak absolute potential were not significant between N1 and N2 states. In the frequency domain,differences in power spectral density peak frequency of electromyogram signals were significant between two sets of four OOM movement states. These results suggest that OOM significantly contracts and induces eyelid-closing action. In addition,OOM is diastolic during the N1 state. A N2 state does not require continuous intensive OOM contraction. Moreover,distinctions of quantitative information in time and frequency domain features of MES can be used as an OOM reference to identify muscle movement patterns. | Dongyue Xu Keyong Li Jingquan Liu Yujuan Wang Yuefeng Rui | 2010 | Neural Regeneration Research2010，5，24： | 6 |
| 2 | Evidence of microstructures and fluid inclusions for the origin of polycrystalline quartz ribbons in high-grade metamorphic rocks in Daqingshan region显示文摘Polycrystalline quartz ribbons in high-grade metamorphic rocks from the Daqingshan region, are typi- cal microfabrics of, and provide information for, deep crust deformation and metamorphism. The quartz ribbons have straight boundaries and extend stably along gneissosity. They truncate other mineral grains in the rocks and may contain inclusions of such minerals that are lens-shaped and oriented. They frequently end into branching termination. Analysis fluid inclusions in polycrystalline quartz rib- bons reveal that the complex types of fluid inclusions are inhomogeneously distributed. They are ob- viously different from inclusions captured at granulite facies, in both fluid compositions and T-P esti- mations. Based on microfabric and fluid inclusion analysis, the polycrystalline quartz ribbons are suggested to be formed by SO2-rich fluids filling micro-fractures that are parallel to early gneissosity. The SO2 composition is derived from the deformed host rocks. The fluid phase has significant effects on the rheological characteristics, fracturing of rocks, and formation of quartz ribbons. | LIU ZhengHong XU ZhongYuan WANG KeYong | 2007 | Science China Earth Sciences2007，50，4： | 4 |
| 3 | Artificial facial nerve reflex restores eyelid closure following orbicularis oculi muscle denervation显示文摘To date,treatment of peripheral facial paralysis has focused on preservation of facial nerve integrity.However,with seriously damaged facial nerve cases,it is difficult to recover anatomical and functional integrity using present therapies.Therefore,the present study utilized artificial facial nerve reflex to obtain orbicularis oculi muscle(OOM) electromyography signals on the uninjured side through the use of implanted recording electrodes.The implanted electrical chips analyzed facial muscle motion on the uninjured side and triggered an electrical stimulator to emit current pulses,which resulted in stimulation of injured OOM contraction and maintained bilateral symmetry and consistency.Following signal recognition,extraction,and computer analysis,electromyography signals in the uninjured OOM resulted in complete eyelid closure,which was consistent with the voltage threshold for eye closure.These findings suggested that artificial facial nerve reflex through the use of implanted microelectronics in unilateral peripheral facial paralysis could restore eyelid closure following orbicularis oculi muscle denervation. | Yujuan Wang Keyong Li Jingquan Liu Dongyue Xu Yuefeng Rui Chunsheng Yang | 2010 | Neural Regeneration Research2010，5，22： | 3 |
| 4 | The Impact on Extraction Effect of Polysaccharide from Ganoderma lucidum by Different Pretreatment显示文摘[Objectives] The research aimed to study the impact on extraction effect of polysaccharide from Ganoderma lucidum( lingzhi) by different pretreatment methods. [Methods] The impacts on extraction of G. lucidum polysaccharide by soaking,microwave and air flow fine pulverization were contrasted,and the extraction effect of G. lucidum polysaccharide by combining the optimal pretreatment manner with hot water extraction,alcohol extraction,alkali extraction,ultrasonic binding enzyme extraction,and microwave extraction was compared. Finally,the property of G. lucidum polysaccharide obtained after air flow fine pulverization pretreatment was detected and analyzed by high performance liquid chromatography. [Results] The optimal pretreatment method was air flow fine pulverization. Compared with traditional method-direct extraction( coarse grinding combining hot water extraction),crude yield changed little,while polysaccharide content and yield were improved by 114% and 104%. The best combination manner was air flow fine pulverization pretreatment combining with alkali extraction. Compared with traditional method,crude yield,polysaccharide content and yield were improved by 76%,78% and 215% respectively. The property of G. lucidum polysaccharide obtained after air flow fine pulverization pretreatment was detected and analyzed by high performance liquid chromatography. It was found that the treatment method had little impact on the property of G. lucidum polysaccharide. [Conclusions]Air flow fine pulverization pretreatment could greatly improve extraction effect of G. lucidum polysaccharide,which mainly improved the content and yield of G. lucidum polysaccharide,and extraction was more complete,with less impact on the property of the extracted polysaccharide. It was speculated that air flow fine pulverization pretreatment mainly destroyed mechanical support wall membrane structure of G. lucidum fine powder,making that intracellular functional substances completely dissolved out of the cell,and the content would be studied in follow-up experiment. | Jinyi LIANG Jinghao ZHOU Jianping ZHOU Yifeng TAN Keyong XU | 2018 | Medicinal Plant2018，9，3： | 2 |
| 5 | Effects of therapeutic mild hypothermia on patients with severe traumatic brain injury after craniotomy显示文摘 | Wusi Qiu Ying Zhang Hong Sheng Jianmin Zhang Weiming Wang Weiguo Liu Keyong Chen Junfu Zhou Zefeng Xu | 2007 | Journal of Critical Care2007，，3： | 1 |
| 6 | Generation of oxygen vacancies in NiFe LDH electrocatalysts by ultrasound for enhancing the activity toward oxygen evolution reaction显示文摘Introduction of vacancies is a promising route to enhance the performance of electrocatalysts by tuning the electronic structure and bonding energy.Here,the influence of ultrasound treatment on the O vacancies formation and interlayer spacing in NiFe layered double hydroxide(LDH)was investigated.It is found that the strong ultrasound treatment results in rich O vacancies on the surface of NiFe LDH,which affect the electrocatalysis performance.Besides,the ultrasound treated NiFe LDH electrocatalysts had a reduced thickness with a hexagonal nanosheet morphology and expanded interlayer distance,which could promote the diffusion of reactant and generated gas.When the obtained defect-rich NiFe LDH electrocatalyst prepared by a 10-min ultrasonic treatment was applied to catalyze oxygen evolution reaction(OER),only 194 mV of overpotential was needed to maintain a current density of 10 mA⋅cm^(-2). | Xiumin Li Qianyu Hu Yazhou Xu Xiaoyang Liang Jiawei Feng Kunyan Zhao Guoqing Guan Yongchao Jiang Xiaogang Hao Keyong Tang | 2021 | Carbon Resources Conversion2021，4，1： | 0 |
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