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| 1 | Determination of Taurine in Biological Samples by High-Performance Liquid Chromatography Using 4-Fluoro-7-Nitrobenzofurazan as a Derivatizing Agent显示文摘Objective A highly sensitive and rapid high‐performance liquid chromatography method with pre‐column derivatization with 4‐fluoro‐7‐nitrobenzofurazan was developed for determination of taurine in biological samples,including plasma,brain,and liver.Methods The optimum derivatization reaction temperature was 70℃,and at this temperature the reaction was complete within 3 min.The derivatized taurine was separated using phosphate buffer (0.02 mol/L,pH 6.0):acetonitrile (84:16,v/v) as the mobile phase at a flow rate of 1.0 mL/min,and a column temperature of 25℃.The taurine derivatives were separated within 20 min (tR:14.5 min) and fluorometrically detected at 530 nm with excitation at 470 nm.Results The intra‐ and the inter‐day coefficients of variation for the method were 5.3% and 7.7%,respectively.The calibration curve was linear from 0.1 μmol/L to 30.0 μmol/L with a correlation coefficient of 0.9995.Conclusion This method can be used to determine the taurine contents in plasma,brain,and liver from normal rats and human plasma. | WANG XiFeng CHI DeFeng SU GuanMin LI Lin SHAO LiHua | 2011 | Biomedical and Environmental Sciences2011，24，5： | 13 |
| 2 | Atrophy of the left dorsolateral prefrontal cortex is associated with poor performance in verbal fluency in elderly poststroke women显示文摘This study aimed to investigate the association between atrophy in the prefrontal cortex with executive function and verbal fluency in elderly male and female patients poststroke.Thirty elderly female patients with non-aphasic ischemic stroke aged ≥ 60 years and 30 age-matched non-aphasic male patients with ischemic stroke were recruited.Automatic magnetic resonance imaging segmentation was used to assess the volume of the whole prefrontal cortex,along with its subdivisions:anterior cingulate cortex,orbitofrontal cortex and dorsolateral prefrontal cortex.The Semantic Verbal Fluency Test was administered at 3 and 15 months poststroke.At 3 months poststroke,left dorsolateral prefrontal cortex volume was significantly correlated with Verbal Fluency Test score in female patients only(partial coefficient = 0.453,P = 0.045),after controlling for age,education,diabetes,neurological deficit,white matter lesions volume,as well as the location and volume of infarcts.At 15 months poststroke,there remained a significant association between the left dorsolateral prefrontal cortex volume and Verbal Fluency Test(partial coefficient = 0.661,P = 0.001) and between the left prefrontal cortex volume and Verbal Fluency Test(partial coefficient = 0.573,P = 0.004) in female patients after the same adjustments.These findings indicate that atrophy of the left dorsolateral prefrontal cortex contributes to the impairment of verbal fluency in elderly female patients with stroke.Sex differences may be present in the neuropsychological mechanisms of verbal fluency impairment in patients with stroke. | Yang-Kun Chen Wei-Min Xiao Defeng Wang Lin Shi Winnie CW Chu Vincent CT Mok Ka Sing Wong Gabor S Ungvari Wai Kwong Tang | 2013 | Neural Regeneration Research2013，8，4： | 2 |
| 3 | Automated quantifica- tion of white matter lesion in magnetic resonance imaging of patients with acute infarction 显示文摘 | Lin Shi Defeng Wang Shangping | 2013 | Journal of neuroscience methods2013，213，1： | 1 |
| 4 | Sulforaphane induces Nrf2 and protects against CYP2E1-dependent binge alcohol-induced liver steatosis显示文摘 | Richard Zhou Jianjun Lin Defeng Wu | 2014 | BBA - General Subjects2014，，1： | 1 |
| 5 | Easily Separated and Recyclable Amino-functionalized Porous SiO2 Beads with 3D Continuous Meso/Macropore Channels显示文摘 | WANG Qi YANG Xiaohui JIANG Yanqiu HUO Hang LI Defeng LIN Kaifeng XU Xianzhu | 2018 | Chemical Research in Chinese Universities2018，34，1： | 1 |
| 6 | Structural feature and tectonic evolution of Awati-Bachu area in Tarim Basin显示文摘The research area is situated in the western part of Tarim basin,which includes Awati depression and Bachu uplifted block. It underwent three times processes of compression in a large scale and a near term extension since Cambrian. The first compression occurred during Middle Cambrian to Devonian, which formed fault band folds in NW axial direction. They were 'under-water uplift'and distributed all over the research area. The second compression occurred in Late Permian and formed fault band folds and a few fault propagation folds in NS axial direction. They are developed near Tumuxiuke fault belt and the northern research area. The western anticline is bigger than the eastern one in extent and size. The third compression occurred during Palaeogene to Quaternary and formed tumuxiuke fault belt and fault propagation folds in NW direction. They are distributed over the south part of the research area. Tumuxiuke fault belt is a big scale dextral reversed strike-slip fault belt; it transformed or destroyed the fold structure of the research area. A short-term extension occurred during Early Permian. Tarim Basin is in the rift forming stage of craton, and there exist widespread basic volcanic rocks, basic intrusive bodies and dikes. | Zhihong LIU Defeng ZHU Junyi GAO Xiangmei WU Dongcheng LIN Liguo ZHANG | 2008 | Global Geology2008，11，1： | 0 |
| 7 | Iterative multiuser detection for high spectral efficiency reverse-link of multibeam satellite via expectation propagation显示文摘Multibeam satellite communications employing full frequency reuse have the potential to increase spectral efficiency.However,they suffer from severe inter-beam interference.An expectation propagation based message passing algorithm is proposed for decoding multi-user transmissions in the reverse link of multi-beam satellite communications with full frequency reuse.Compared with an iterative MMSE(Minimum Mean Square Error)interference cancellation algorithm,the proposed algorithm reduces the cubic complexity to square complexity in the number of interfering beams.Numerical results show that the proposed algorithm outperforms the iterative MMSE algorithm slightly in terms of bit error rate when the energy per bit to noise power spectral density ratio is low.The performance of both algorithms is the same for other cases. | LIN Xincong WU Sheng NI Zuyao KUANG Linling HUANG Defeng SUN Baosheng | 2016 | Journal of Communications and Information Networks2016，1，3： | 0 |
| 8 | In Situ Preparation and Analysis of Bimetal Co?doped Mesoporous Graphitic Carbon Nitride with Enhanced Photocatalytic Activity显示文摘A novel photocatalyst of mesoporous graphitic carbon nitride(g-C_3N_4) co-doped with Co and Mo(Co/Mo-MCN) has been one-pot synthesized via a simple template-free method; cobalt chloride and molybdenum disulfide were used as the Co and Mo sources, respectively. The characterization results evidently indicate that molybdenum disulfide functions as Mo sources to incorporate Mo atoms in the framework of g-C_3N_4 and as a catalyst for promoting the decomposition of g-C_3N_4, resulting in the creation of mesopores. The obtained Co/Mo-MCN exhibited a significant enhancement of the photocatalytic activity in H_2 evolution(8.6 times) and Rhodamine B degradation(10.1 times) under visible light irradiation compared to pristine g-C_3N_4. Furthermore, density functional theory calculations were applied to further understand the photocatalytic enhancement mechanism of the optical absorption properties at the atomic level after Co-or Mo-doping. Finite-di erence time-domain simulations were performed to evaluate the e ect of the mesopore structures on the light absorption capability. The results revealed that both the bimetal doping and the mesoporous architectures resulted in an enhanced optical absorption; this phenomenon was considered to have played a critical role in the improvement in the photocatalytic performance of Co/Mo-MCN. | Wanbao Wu Zhaohui Ruan Junzhuo Li Yudong Li Yanqiu Jiang Xianzhu Xu Defeng Li Yuan Yuan Kaifeng Lin | 2019 | Nano-Micro Letters2019，11，1： | 0 |
| 9 | Mapping the small-world properties of brain networks in Chinese to English simultaneous interpreting by using functional near-infrared spectroscopy显示文摘The aim of this study is to examine the small-world properties of functional brain networks inChinese to English simultaneous interpreting(SI)using functional near-infrared spectroscopy(INIRS),In particular,the fNIRS neuroimaging combined with complex network analysis wasperformed to extract the features of functional brain networks underling three translationstrategies associated with Chinese to English SI:'transcoding'that takes the'shortcut'linkingtranslation equivalents between Chinese and the English,code-mixing'that basically does notinvolve blingual procesing,and'transphrasingn that takes the long route'involving amonolingual processing of meaning in Chinese and then another monolingual processing ofmeaning in English.Our results demonstrated that the small-world net work topology was able todistinguish well bet ween the transcoding,code-mixing and transphrasing strategies related toChinese to English SI. | Xiaohong Lin Victoria Lai Cheng Lei Defeng Li Zhishan Hu Yutao Xiang Zhen Yuan | 2018 | Journal of Innovative Optical Health Sciences2018，，3： | 0 |
| 10 | Bulk GaN-based SAW resonators with high quality factors for wireless temperature sensor显示文摘Surface acoustic wave(SAW)resonator with outstanding quality factors of 4829/6775 at the resonant/anti-resonant frequencies has been demonstrated on C-doped semi-insulating bulk GaN.The impact of device parameters including aspect ratio of length to width of resonators,number of interdigital transducers,and acoustic propagation direction on resonator performance have been studied.For the first time,we demonstrate wireless temperature sensing from 21.6 to 120℃ with a stable temperature coefficient of frequency of–24.3 ppm/℃ on bulk GaN-based SAW resonators. | Hongrui Lv Xianglong Shi Yujie Ai Zhe Liu Defeng Lin Lifang Jia Zhe Cheng Jie Yang Yun Zhang | 2022 | Journal of Semiconductors2022，43，11： | 0 |
| 11 | Flexible predictive power-split control for battery-supercapacitor systems of electric vehicles using IVHS显示文摘The utilization of traffic information received from intelligent vehicle highway systems(IVHS) to plan velocity and split output power for multi-source vehicles is currently a research hotspot. However, it is an open issue to plan vehicle velocity and distribute output power between different supply units simultaneously due to the strongly coupling characteristic of the velocity planning and the power distribution. To address this issue, a flexible predictive power-split control strategy based on IVHS is proposed for electric vehicles(EVs) equipped with battery-supercapacitor system(BSS). Unlike hierarchical strategies to plan vehicle velocity and distribute output power separately, a monolayer model predictive control(MPC) method is employed to optimize them online at the same time. Firstly, a flexible velocity planning strategy is designed based on the signal phase and time(SPAT) information received from IVHS and then the Pontryagin’s minimum principle(PMP) is adopted to formulate the optimal control problem of the BSS. Then, the flexible velocity planning strategy and the optimal control problem of BSS are embedded into an MPC framework, which is online solved using the shooting method in a fashion of receding horizon. Simulation results verify that the proposed strategy achieves a superior performance compared with the hierarchical strategy in terms of transportation efficiency, battery capacity loss, energy consumption and computation time. | HE Defeng LUO Jie LIN Di YU Shiming | 2023 | Journal of Systems Engineering and Electronics2023，34，1： | 0 |
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