Provided are a peripheral compensation system and method for a pixel matrix (100), and a display system. The peripheral compensation system comprises: a row scanning driver (200), a compensator (400) and a column driver (300), wherein the column driver (300) comprises a display signal generation module (301), and the display signal generation module (301) comprises a first digital-to-analogue conversion module (311) having a gamma correction function, a second digital-to-analogue conversion module (312) and a first analogue addition module (313). Therefore, while performing precise gamma correction on a digital original signal, the peripheral compensation system has a simple structure, and the number of bits of the first digital-to-analogue conversion module is small; and a correction operation can also be performed during the display of a display system, so that the refresh frequency of compensation information can be increased to the maximum extent.
Meng Xue
Xian Zhang
Lei Ma
Zhen Gu
Yongxing Lin
Chao Bao and Xingyou Tian
Polyhedral oligomeric silsesquioxane (POSS)-containing ethylene-propylene-diene monomer (EPDM) composite fibers have been prepared by electrospinning method, with an average diameter of micron grade and fibrous structural morphology. The results of transmission electron microscopy, Fourier transform infrared, and UV-Vis spectra reveal that POSS moieties have been dispersed in polymer matrix homogeneously. A combination of thermogravimetric analysis and thermogravimetric-differential scanning calorimetry (TG-DSC) united analysis was used to investigate the thermal behavior of the resulting fibers at elevated temperatures. The results show that composites exhibited great increase of thermal decomposition temperature and large reduction of total heat release compared with pure EPDM.
Cuijuan Qian
Jiji Wang
Jun Yao
Lan Wang
Meng Xue
Weili Liu and Jianmin Si
Although JAK2 inhibitors can result in antitumor activity against various tumors, some tumors have showed insensitivity or resistance to the inhibitors. To investigate the possible mechanisms underlying responses of gastric cancer (GC) cells to AG490, a specific JAK2 inhibitor, human GC cell lines SGC7901 and AGS were used. AG490 did not significantly induce apoptosis in SGC7901 cells, but it did in AGS cells. Interestingly, in SGC7901 cells, AG490 led to increased nuclear translocation of total JAK2 proteins, accompanied with initial inactivation but later reactivation of JAK2. However, in AGS cells, AG490 led to decreased nuclear localization of total JAK2 proteins, accompanied with sustained inactivation of JAK2. Moreover, silencing of human homolog of Drosophila Hairy and enhancer of split (Hes) 1 with siRNA partly blocked AG490-induced nuclear translocation of JAK2, and enhanced AG490-induced apoptosis in SGC7901 cells. The results collectively suggested that nuclear JAK2 signaling pathway may act as an escape way from JAK2 inhibitors in some GC cells. Anat Rec, 296:1865–1873, 2013.
An optical switch includes an optical waveguide to route an input optical beam. At least one polarization switch receives the input optical beam from the optical waveguide. At least one birefringent wedge is associated with the at least one polarization switch. The at least one polarization switch and at least one birefringent wedge operate to direct the input optical beam to two or more output locations through control of the polarization switch.
An optical switch includes an optical waveguide to route an input optical beam. At least one polarization switch receives the input optical beam from the optical waveguide. At least one birefringent wedge is associated with the at least one polarization switch. The at least one polarization switch and at least one birefringent wedge operate to direct the input optical beam to two or more output locations through control of the polarization switch.
Zhaofeng Wu
Hua Wang
Xingyou Tian
Meng Xue
Xin Ding
Xianzhu Ye
Zhongyue Cui
Abstract The surface and mechanical properties of hybrid films of waterborne polyurethane (WPU) and fluorinated polymethacrylate (FPMA), and high-hydrophobic silica (SiO 2 ) contained hybrid films of FPMA/WPU were investigated. X-ray photoelectron spectroscopy confirmed that the surfaces of hybrid films exhibited notable fluorine enrichment. Scanning electron microscopy observation demonstrated that micro-scale rough structures consisted of sub-micro papillae and micro-scale wrinkles formed on the surfaces of FPMA/WPU. This was attributed to the enhanced phase separation of WPU and the incompatibility of low-surface-energy FPMA and WPU. Colloidal SiO 2 was modified by polydimethylsiloxane and the modified SiO 2 was reactive and high-hydrophobic. After the addition of reactive SiO 2 , the rough structures became micro-scale striped wrinkles studded with nano- and sub-micro papillae formed by the high-hydrophobic SiO 2 . The combination of the fluorine enrichment and the rough structures accounted for the high hydrophobic FPMA/WPU film and superhydrophobic SiO 2 /FPMA/WPU film. Graphical abstract
Zhang Hua-qi
Yu Jin-ming
Meng Xue
Yue Jin-bo
Feng Rui
Ma Li
Objective: To evaluate (18)FDG PET-CT for the assessment of therapy response and prediction of patient outcome after concurrent chemoradiotherapy (CCRT) for non-small cell lung cancer (NSCLC). Methods: Forty-six patients with pathologically proven stage III NSCLC had 2 serial FDG PET-CT scans, before and during CCRT. The maximum standardized uptake value (SUV(max)) of the primary lung lesion was calculated. The value changes of SUVmax before and during treatment were calculated according to the following equation: SUV = (SUV(before) -SUV(during))100%/SUV(before). The relationship between changes of the SUVmax and the therapy response as well as long-term survival was studied in the responsive and non-responsive groups after CCRT. Results: Of the 46 enrolled patients, after a medicine follow-up of 2 years, the initial SUVmax in the responsive and non-responsive groups was 7.59 +/- 3.14 and 14.72 +/- 4.67, respectively. The SUVmax during treatment in the two groups was 2.89 +/- 1.39 and 9.82 +/- 3.31, respectively. Significant difference (P = 0.001; P = 0.001) in SUVmax was observed either before or during treatment. Furthermore, the percent change of SUVmax before and during treatment was 61.91 +/- 86.69 and 33.56 +/- 90.37, respectively. There was significant difference between these two groups (P = 0.007). In addition, the 1-year survival rate in the responsive and non-responsive group was 73% and 69%, respectively. The 2-year survival rate in the two groups was 40% and 37%, respectively. There was significant difference between these two groups (P = 0.001). Conclusions: (18)FDG PET-CT is an effective method in the prediction of therapy response in patients with stage III NSCLC. The analysis of percent change of SUVmax provides additional value in early prediction of therapy response and patient outcome. (c) 2009 Elsevier Ireland Ltd. All rights reserved.
Jiang HaiYan
Meng Xue
Dai HongXing
Deng JiGuang
Liu YuXi
Zhang Lei
Zhao ZhenXuan
Zhang RuZhen
Monoclinic BiVO 4 single-crystallites with a polyhedral, spherical or porous octapod-like morphology were selectively prepared using the triblock copolymer P123 (HO(CH 2CH 2O) 20(CH 2CH(CH 3)O) 70(CH 2CH 2O) 20H)-assisted hydrothermal method with bismuth nitrate and ammonium metavanadate as metal source and various bases as pH adjustor. The BiVO 4 materials were well characterized and their photocatalytic activities were evaluated for the removal of methylene blue (MB) and phenol in the presence of a small amount of H 2O 2 under visible-light illumination. It is shown that the pH value of the precursor solution, surfactant, and hydrothermal temperature had an important impact on particle architecture of the BiVO 4 product. The introduction of P123 favored the generation of BiVO 4 with porous structures. The BiVO 4 derived hydrothermally with P123 at pH 3 or 6 possessed good optical absorption performance both in UV- and visible-light regions and hence showed excellent photocatalytic activities for the degradation of MB and phenol. It is concluded that the high visible-light-driven catalytic performance of the porous octapod-like BiVO 4 single-crystallites is associated with the higher surface area, porous structure, lower band gap energy, and unique particle morphology. Such porous BiVO 4 materials are useful in the solar-light-driven photocatalytic treatment of organic-containing wastewater.
Zhaofeng Wu
Hua Wang
Meng Xue
Xingyou Tian
Xianzhu Ye
Haifeng Zhou
Zhongyue Cui
Abstract Superhydrophobic surfaces with micro/nano structures were prepared using the synergistic effect of the hydroxyl-silicone-oil modified microscale tourmaline particles (HTP) and the nanoscale silica (SiO 2 ) by a simple spraying method. The SiO 2 /HTP/Polyurethane (PU) and HTP/PU dispersions were sprayed onto the waterborne polyurethane (WPU) film using a shower nozzle driven by an air compressor. After drying of the spraying film at room temperature, a surface with micro/nano structures was obtained and the micro/nano structures were consisted of the microscale HTP coated by the nanoscale SiO 2 . Static water contact angle measurements proved that the rough surfaces were superhydrophobic. Furthermore, their performance of releasing negative air ion was significantly enhanced due to the rough structure. Importantly, this method is simple, low-cost and suitable for the fast and large-scale preparation of superhydrophobic surfaces, which is particularly important for the modification of hydrophilic polymer surfaces.
Zhiqiang Wang;Shichun Gao;Meng Xue;Xinyu Ju;Xinhao Wang;Xin Lv;Yang Li;Tao Yang;State Information Center;Beijing Electronic Science and Technology Institute;Key Lab of Information Network Security, Ministry of Public Security;
Most visitor systems' information management is at a low level, and the processing method is still semi-manual registration. To improve the level of automation of the visitor system, this paper designs a remote visitor system based on NFC technology deployed on the Android smart-phone platform. It reads and emulates card data through NFC technology and adopts SM series algorithm to encrypt and decrypt the transmitted data. The system effectively solves the problems about security and automation in the traditional guest system.
Meng Xue
Yang Li
Fang Hu
Yi-Jie Jia
Zong-Ji Zheng
Ling Wang
Yao-Ming Xue
Abstract Tubulointerstitial fibrosis (TIF) is crucial in the development of renal fibrosis in diabetic nephropathy(DN). Previous data shows that SIRT1 plays an important role on fibrosis, but the effect on TIF in DN and underlying mechanisms remains uncertain. In this study, we evaluated the vital role of SIRT1 and identified SIRT1 as a downstream target gene of microRNA-34a-5p (miR-34a-5p) in TIF of DN. The result revealed that expression of miR-34a-5p, fibronectin(FN),collagen type I (COL1) and transforming growth factor β1 (TGF-β1) were up-regulated accompanied by the corresponding down-regulation of SIRT1 in renal tissues of high fat diet and streptozotocin(HFD/STZ)induced diabetic mice with DN, and that the SIRT1 mRNA level was negatively correlated with miR-34a-5p expression in high glucose stimulated human proximal tubule cell line(HK-2) cells. We then demonstrated that overexpression of SIRT1 reduced, whereas small interfering RNA targeting SIRT1 enhanced the expressions of TGF-β1 and fibrosis-related genes including FN and COL1 in HK-2 cells. Furthermore, we identified that miR-34a-5p directly suppressed SIRT1 to increase the profibrogenic effects of TGFβ1 through targeting the 3'untranslated region of SIRT1. The functional correlation of miR-34a-5p induced SIRT1 decrease was supported by overexpression and inhibition of miR-34a-5p in HK-2 cells. All the results reveal that SIRT1 which is vital in the evolution of renal TIF in DN can be directly suppressed by miR-34a-5p, and suggest that miR-34a-5p is a new target for DN treatment. Highlights • The expression of SIRT1 is declined and the level of miR-34a-5p is up-regulated in the kidneys of DN mice. • SIRT1 prevents TGF-β1-induced pro-fibrotic gene expression. • SIRT1 expression was declined time-dependently under high glucose in HK-2 cells. • MiR-34a-5p aggravate fibrosis through directly suppressing SIRT1. • MiR-34a-5p inhibitor reverse the expressions of downstream genes through SIRT1 in HK-2 cells.