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1Highly efficient generation of arbitrary vector beams with tunable polarization, phase, and amplitude显示文摘We propose an efficient and robust method to generate tunable vector beams by employing a single phasetype spatial light modulator(SLM). With this method, a linearly polarized Gaussian beam can be converted into a vector beam with arbitrarily controllable polarization state, phase, and amplitude. The energy loss during the conversion is greatly reduced and depends mainly on the reflectivity of the SLM. We experimentally demonstrate that conversion efficiency of about 47% is achieved by using an SLM with reflectivity of 62%.Several typical vector beams, including cylindrical vector beams, vector beams on higher order Poincaré spheres,and arbitrary vector beams attached with phases and with tunable amplitude, are generated and verified experimentally. This method is also expected to create high-power vector beams and play important roles in optical fabrication and light trapping.SHENG LIU SHUXIA QI YI ZHANG PENG LI DONGJING WU LEI RAN JIANLIN ZHAO 2018Photonics Research2018,6,4:23
2The China Alzheimer Report 2022显示文摘China’s population has rapidly aged over the recent decades of social and economic development as neurodegenerative disorders have proliferated,especially Alzheimer’s disease(AD)and related dementias(ADRD).AD’s incidence rate,morbidity,and mortality have steadily increased to make it presently the fifth leading cause of death among urban and rural residents in China and magnify the resulting financial burdens on individuals,families and society.The‘Healthy China Action’plan of 2019-2030 promotes the transition from disease treatment to health maintenance for this expanding population with ADRD.This report describes related epidemiological trends,evaluates the economic burden of the disease,outlines current clinical diagnosis and treatment status and delineates existing available public health resources.More specifically,it examines the public health impact of ADRD,including prevalence,mortality,costs,usage of care,and the overall effect on caregivers and society.In addition,this special report presents technical guidance and supports for the prevention and treatment of AD,provides expertise to guide relevant governmental healthcare policy development and suggests an information platform for international exchange and cooperation.Rujing Ren Jinlei Qi Shaohui Lin Xinya Liu Peng Yin Zhihui Wang Ran Tang Jintao Wang Qiang Huang Jianping Li Xinyi Xie Yongbo Hu Shishuang Cui Yuan Zhu Xiaoping Yu Pengfei Wang Yikang Zhu Yiran Wang Yanyan Huang Yisong Hu Ying Wang Chunbo Li Maigeng Zhou Gang Wang 2022General Psychiatry2022,35,1:20
3Oral berberine improves brain dopa/dopamine levels to ameliorate Parkinson’s disease by regulating gut microbiota显示文摘The phenylalanine-tyrosine-dopa-dopamine pathway provides dopamine to the brain.Iin this process,tyrosine hydroxylase(TH)isthe rate-limiting enzyme that hydroxylates tyrosine and generates levodopa(L-dopa)with tetranydrobiopterin(BH_(4))as a coenzyme.Here,we show that oral berberine(BBR)might supply H^(·) through dihydroberberine(reduced BBR produced by bacterial nitroreductase)and promote the production of BHl from dihydrobiopterin;the increased BH,enhances TH activity,which accelerates the production of L-dopa by the gut bacteria.Oral BBR acts in a way similar to vitamins.The L-dopa produced by theintestinal bacteria enters the brain through the circulation and is transformed to dopamine.To verify the gut-brain dialog activatedby BBR's effect,Enterococcus foecalis or Enterococcus faecium was transplanted into Parkinson's disease(PD)mice.The bacteriasignificantly increased brain dopamine and ameliorated PD manifestation in mice;additionally,combination of BBR with bacteriashowed better therapeutic effect than that with bacteria alone.Moreover,2,4,6-trimethy-pyranylium tetrafluoroborate(TMP-TFB)-derivatized matrix-assisted laser desorption mass spectrometry(MALDI-MS)imaging of dopamine identihed elevated striataldopamine levels in mouse brains with oral Enterococcus,and BBR strengthened the imaging intensity of brain dopamine.Theseresults demonstrated that BBR was an agonist of TH in Enterococcus and could lead to the production of L-dopa in the gut.Furthermore,a study of 28 patients with hyperlipidemia conhrmed that oral BBR increased bloodfecal L-dopa by the intestinalbacteria.Hence,BBR might improve the brain function by upregulating the biosynthesis of-dopa in the gut microbiota through avitamin-like effect.Yan Wang Qian Tong Shu-Rong Ma Zhen-Xiong Zhao Li-Bin Pan Lin Cong Pei Han Ran Peng Hang Yu Yuan Lin Tian-Le Gao Jia-Wen Shou Xiao-Yang Li Xian-Feng Zhang Zheng-Wei Zhang Jie Fu Bao-Ying Wen Jin-Bo Yu Xuetao Cao Jian-Dong Jiang 2021Signal Transduction and Targeted Therapy2021,6,3:16
4Annual 30-m land use/land cover maps of China for 1980–2015 from the integration of AVHRR, MODIS and Landsat data using the BFAST algorithm显示文摘Annual land use land cover(LULC)change information at medium spatial resolution(i.e.at 30 m)is required in numerous subjects,such as biophysical modelling,land management and global change studies.Annual LULC information,however,is usually not available at continental or national scale due to reasons such as insufficient remote sensing data coverage or lack of computational capabilities.Here we integrate high temporal resolution and coarse spatial resolution satellite images(i.e.,Moderate Resolution Imaging Spectroradiometer(MODIS)and Global Inventory Modelling and Mapping Studies(GIMMS)normalized difference vegetation index(NDVI))with high spatial resolution datasets(China’s Land-Use/cover Datasets(CLUDs)derived from 30-meter Landsat TM/ETM+/OLI)to generate reliable annual nominal 30 m LULC maps for the whole of China between 1980 and 2015.We also test the performance of a statistical based change detection algorithm(Breaks for Additive Seasonal and Trend),originally designed for tracking forest change,in classifying all-type LULC change.As a result,a nominal 30 m annual land use/land cover datasets(CLUD-A)from 1980 to 2015 was developed for the whole China.The mapping results were assessed with a change sample dataset,a regional annual validation sample set and a three-year China sample set.Of the detected change years,75.61%matched the exact time of conversion within±1 year.Annual mapping results provided a detail process of urbanization,deforestation,afforestation,water and cropland dynamics over the past 36 years.The consistent characterization of land change dynamics for China can be further used in scientific research and to support land management for policy-makers.Yidi XU Le YU Dailiang PENG Jiyao ZHAO Yuqi CHENG Xiaoxuan LIU Wei LI Ran MENG Xinliang XU Peng GONG 2020Science China Earth Sciences2020,63,9:12
5Carcinogenic potential of duodenal reflux juice from patients with long-standing postgastrectomy显示文摘AIM To determine, whether study on thecarcinogenic potential of reflux juice frompatients with remote gastrectomy could clarifythe inherent relationship between duodenalreflux and gastric stump cancer.METHODS A total of 37 reflux juice samples(13 Billroth T, 24 Billroth Ⅱ ) were employed inthe present study. A two- stage transformationassay using BALB/c 3T3 cells was carried out totest the initiating or promoting activity of thesesamples.RESULTS Two of 18 (11.1%) reflux samplesexerted initiating activities, whereas 9/19(47.4%) samples enhanced the MNNG-initiafingcell transformation, suggesting the duodenalreflux juice might more frequently possess thetumor-promoter activity (P = 0. 029). In addition,there was no difference in initiating activities ofthe samples irrespective of surgical procedures(P=0.488), while Billroth Ⅱ samples exhibitedstronger tumor-promoter activity than Billroth Ⅰsamples (P = 0.027). Furthermore, the promoteractivities were well correlated with thehistological changes of the stomas (rs = 0.625,P = 0.004), but neither their cytotoxicities norinitiating activities had this correlation( Probabilities were 0.523 and 0.085,respectively).CONCLUSION The duodenal reflux juice frompatients with remote postgastrectomy did havecarcinogenic potential, and suggested thattumor-promoting activity should principallyaccount for the high incidence of gastric cancerin gastrectomy patients. In contrast, it isdifficult to explain the high stump-cancerincidence with the 'N-nitroso compounds'theory-a popular theory for the intact stomachcarcinogenesis, and it seemed to be justified tofocus chemoprevention of this cancer on thetumor-promoting potential of reflux juice.Zhe Fu Ma~1 Zhong Yu Wang~1 Jun Ran Zhang~2 Peng Gong~1 Hai Long Chen~1 ~1Departrnent of General Surgery,First Hospital,Dalian Medical University,Dalian 116011,China ~2Department of Radiation Oncology,Massachusetts General Hospital and Harvard Medical School,Charlestown,MA 02129,USADr.Zhe Fu Ma graduated from Shanxi Medical College in 1993,nowPh.D.,M.D.in Department of Surgery,Dalian Medical University,majoring gastroenteric cancer,having 4 papers published.Correspondence to:Dr.Zhe Fu Ma.Department of General Surgery,First Hospital,Dalian Medical University,Dalian 116011,China Tel.0086-411-4720334 2001World Journal of Gastroenterology2001,7,3:9
6SIRT1 suppresses PMA and ionomycin-induced ICAM-1 expression in endothelial cells显示文摘Intercellular adhesion molecule-1 (ICAM-1) plays an important role in the recruitment of leukocytes to the endothelium, which causes inflammation and initiation of atherosclerosis. We have previously shown that endothelium-specific over-expression of class III deacetylase SIRT1 decreases atherosclerosis. We therefore addressed the hypothesis that SIRT1 suppresses ICAM-1 expression in the endothelial cells. Here, we found that expression of SIRT1 and ICAM-1 was significantly induced by PMA and ionomycin (PMA/Io) in human umbilical vein endothelial cells (HUVECs). Adenovirus-mediated over-expression of SIRT1 significantly inhibited PMA/Io-induced ICAM-1 expression in HUVECs. Knockdown of SIRT1 by RNA interference (RNAi) resulted in increased expression of ICAM-1 in HUVECs. Luciferase report assay showed that over-expression of SIRT1 suppressed ICAM-1 promoter activity both in basic and in PMA/Io-induced conditions. We further found that SIRT1 was involved in transcription complex binding on the ICAM-1 promoter by chromatin immunoprecipitation (ChIP) assays. Furthermore, SIRT1 RNAi increased NF-κB p65 binding ability to the ICAM-1 promoter by ChIP assays. Overall, these data suggests that SIRT1 inhibits ICAM-1 expression in endothelial cells, which may contribute to its anti-atherosclerosis effect.JIA YuYan GAO Peng CHEN HouZao WAN YanZhen ZHANG Ran ZHANG ZhuQin YANG RuiFeng WANG Xu XU Jing LIU DePei 2013Science China(Life Sciences)2013,56,1:9
7Transplantation of bone marrow-derived endothelial progenitor cells and hepatocyte stem cells from liver fibrosis rats ameliorates liver fibrosis显示文摘AIM To explore the effectiveness for treating liver fibrosisby combined transplantation of bone marrow-derived endothelial progenitor cells(BM-EPCs) and bone marrow-derived hepatocyte stem cells(BDHSCs) from the liver fibrosis environment.METHODS The liver fibrosis rat models were induced with carbon tetrachloride injections for 6 wk. BM-EPCs from rats with liver fibrosis were obtained by different rates of adherence and culture induction. BDHSCs from rats with liver fibrosis were isolated by magnetic bead cell sorting. Tracing analysis was conducted by labeling EPCs with PKH26 in vitro to show EPC location in the liver. Finally, BM-EPCs and/or BDHSCs transplantation into rats with liver fibrosis were performed to evaluate the effectiveness of BM-EPCs and/or BDHSCs on liver fibrosis.RESULTS Normal functional BM-EPCs from liver fibrosis rats were successfully obtained. The co-expression level of CD133 and VEGFR2 was 63.9% ± 2.15%. Transplanted BM-EPCs were located primarily in/near hepatic sinusoids. The combined transplantation of BM-EPCs and BDHSCs promoted hepatic neovascularization, liver regeneration and liver function, and decreased collagen formation and liver fibrosis degree. The VEGF levels were increased in the BM-EPCs(707.10 ± 54.32) and BM-EPCs/BDHSCs group(615.42 ± 42.96), compared with those in the model group and BDHSCs group(P < 0.05). Combination of BM-EPCs/BDHSCs transplantation induced maximal up-regulation of PCNA protein and HGF m RNA levels. The levels of alanine aminotransferase(AST), aspartate aminotransferase, total bilirubin(TBIL), prothrombin time(PT) and activated partial thromboplastin time in the BMEPCs/BDHSCs group were significantly improved, to be equivalent to normal levels(P > 0.05) compared with those in the BDHSC(AST, TBIL and PT, P < 0.05) and BM-EPCs(TBIL and PT, P < 0.05) groups. Transplantation of BM-EPCs/BDHSCs combination significantly reduced the degree of liver fibrosis(staging score of 1.75 ± 0.25 vs BDHSCs 2.88 ± 0.23 or BMEPCs 2.75 ± 0.16, P < 0.05).CONCLUSION The combined transplantation exhibited maximal therapeutic effect compared to that of transplantation of BM-EPCs or BDHSCs alone. Combined transplantation of autogenous BM-EPCs and BDHSCs may represent a promising strategy for the treatment of liver fibrosis, which would eventually prevent cirrhosis and liver cancer.Ling Lan Ran Liu Ling-Yun Qin Peng Cheng Bo-Wei Liu Bing-Yong Zhang Song-Ze Ding Xiu-Ling Li 2018World Journal of Gastroenterology2018,24,2:9
8Analysis of reference gene expression for real-time PCR based on relative quantitation and dual spike-in strategy in the silkworm Bombyx mori显示文摘为即时量的聚合酶链反应(qPCR ) ,一般来说,正规化策略把引用基因用作控制并且不应该响应改变条件变化避免这基因的试验性的错误表示的介绍。然而,许多参考基因的表示被报导了更加变化,没有适当正规化,目标基因的表示侧面能被曲解。在这研究,七的表达式层次通常使用了引用基因(行为, GAPDH, 28srRNA, RPL3, -tubulin, UBC,和 TBP ) 与 20-hydroxyecdysone (20E ) 并且与卢丁在不同开发时间点并且响应处理被检测。表示稳定性用 geNorm 和 NormFinder 软件被分析。重要变化在正常纸巾之中并且在试验性地对待的纸巾之间被发现。双刺在里面策略也在正常纸巾之中并且在试验性地对待的纸巾之间揭示了参考基因的表示层次的重要变化。Glutathione-S-transferase 西格马 1 (GSTs1 ) ,它在胖身体有高表达式水平并且与抵抗的机制有关,被用作目标基因验证这二条途径的可行性和差别。Ran Peng Yuanfen Zhai Hua Ding Tianyuan Di Ting Zhang Bing Li Weide Shen Zhengguo Wei 2012Acta Biochimica et Biophysica Sinica2012,44,7:8
9Comparison of safety and efficacy between fondaparinux and nadroparin in non-ST elevation acute coronary syndromes显示文摘心病学(ACC/AHA/ESC ) 指南的心病学 / 美国人心协会 / 欧洲人社会的背景美国学院与非圣举起在病人为使用给了 fondaparinux 一个班建议经历侵略或保守的策略的急性冠的症候群(NSTE 交流) 。Nadroparin 是在中国在 NSTE 交流使用的普通抗凝剂之一。因此,这研究在这未来的、使随机化的、开标签、单个的中心研究在病人把在 fondaparinux 和 nadroparin 之间的安全和功效与 NSTE-ACS.Methods 作比较,有NSTE交流的 300 个病人的一个总数被使随机化收到任何一个 fondaparinux (组 F , n=150 , 2.5 mg/d )或 nadroparin (组 N , n=150 , 0.1 ml/10 kgq12 h )为 4 天的一个平均数。主要安全端点是专业或在不与冠的动脉有关的 9 天的次要的流血的发生绕过 grafting (CABG ) 。主要功效端点在 9 天包括了死亡,心肌的梗塞,或周期性的局部缺血。所有病人经历了一个 180 天的 follow-up.Results 基线特征很好在二个组之间被匹配。有一不重要在在组 F 的主要安全端点的 28 相对风险减小与组 N 相比(4.7 对 6.7, HR 0.72, 95 CI0.42-1.65, P=0.38 ) 。主要功效端点在组 F 是 8.0 并且 10.0 在组 N (HR, 0.82, 95 CI0.54-1.71, P=0.49 ) 。在 9 天的安全和功效端点合成( 10.0 对 16.0 , HR 0.61 , 95 CI0.31-1.10 , P=0.10 ), 30 天( 14.0 对 17.9 , HR 0.72 , 95 C/0.47-1.16 , P=0.21 ),或 180 天( 18.7 对 27.3 , HR0.65 , 95 CI0.38-1.11 , P=0.11 )证明向在组 F.Conclusion Fondaparinux 的更低的价值的一个不重要的趋势在与 nadroparin 相比在短期、长期的后续期间流血和 ischaemic 事件与NSTE交流在病人导致了不重要的风险减小。YAN Hong-bing SONG Li LIU Ran ZHAO Han-jun WANG Shao-pin CHI Yun-peng ZHENG Bin LI Wen-zheng LIU Chen ZHOU Peng 2011Chinese Medical Journal2011,,6:7
10Atg5 regulates late endosome and lysosome biogenesis显示文摘Autophagy is an evolutionarily conserved lysosome-based degradation process.Atg5 plays a very important role in autophagosome formation.Here we show that Atg5 is required for biogenesis of late endosomes and lysosomes in an autophagy-independent manner.In Atg5 cells,but not in other essential autophagy genes defecting cells,recycling and retrieval of late endosomal components from hybrid organelles are impaired,causing persistent hybrid organelles and defective formation of late endosomes and lysosomes.Defective retrieval of late endosomal components from hybrid organelles resulting from impaired recruitment of a component of V1-ATPase to acidic organelles blocks the pH-dependent retrieval of late endosomal components from hybrid organelles.Lowering the intracellular pH restores late endosome/lysosome biogenesis in Atg5 cells.Our data demonstrate an unexpected role of Atg5 and shed new light on late endosome and lysosome biogenesis.PENG JunYa ZHANG Ran CUI YiTong LIU HaoDong ZHAO XiaoXin HUANG Lei HU MingXu YUAN XiaoXi MA BenYu MA XiaoWei TAKASHI Ueno MASAAKI Komatsu LIANG XingJie YU Li 2014Science China(Life Sciences)2014,57,1:6
11Spider web-like carbonized bacterial cellulose/MoSe_(2) nanocomposite with enhanced microwave attenuation performance and tunable absorption bands显示文摘It is essential to manufacture microwave absorbers with strong absorption as well as tunable absorption bands at a low filler content.However,it remains challenging for pure biomass material to reach this goal without loading other components.MoSe_(2),as a transition metal chalcogenide with semiconductor properties,has emerged as a potential microwave absorber filler.Herein,bacterial cellulose(BC)-derived carbon nanofibers/MoSe_(2) nanocomposite was fabricated and phosphoric acid was used to dope phosphorus in BC,in which MoSe_(2) microspheres were dropped on the BC network like a dew-covered spider web.This unique network structure enhances conductive loss and multiple reflections of the incident wave.The collocation of BC and MoSe_(2) is helpful to impedance match and introduces interfacial/dipolar polarization loss;moreover,the P-doping of BC helps to tune the absorption bands.Overall,the optimal reflection loss of undoped one reaches−53.33 dB with only 20 wt.%filler content,whose main absorption peaks focus on X-band.Interestingly,after the P-doping of BC,the main absorption peaks move to Ku-band and the optimal reflection loss gets stronger(−66.84 dB)with the same filler loading.Strong absorption and tunable absorption bands can be realized,and thus wide frequency range is covered.This work is expected to enlighten future exploration of biomass carbon materials on high-performance microwave absorption materials.Zhengjian Xu Man He Yuming Zhou Shuangxi Nie Yongjuan Wang Yao Huo Yifan Kang Ruili Wang Ran Xu Hao Peng Xi Chen 2021Nano Research2021,14,3:6
12Berberine treats atherosclerosis via a vitamine-like effect downregulating Choline-TMA-TMAO production pathway in gut microbiota显示文摘Trimethylamine-N-oxide(TMAO)derived from the gut microbiota is an atherogenic metabolite.This study investigates whether or not berberine(BBR)could reduce TMAO production in the gut microbiota and treat atherosclerosis.Effects of BBR on TMAO production in the gut microbiota,as well as on plaque development in atherosclerosis were investigated in the culture of animal intestinal bacterial,HFD-fed animals and atherosclerotic patients,respectively.We found that oral BBR in animals lowers TMAO biosynthesis in intestine through interacting with the enzyme/co-enzyme of choline-trimethylamine lyase(CutC)and flavincontaining monooxygenase(FMO)in the gut microbiota.This action was performed by BBR’s metabolite dihydroberberine(a reductive BBR by nitroreductase in the gut microbiota),via a vitamine-like effect down-regulating Choline-TMA-TMAO production pathway.Oral BBR decreased TMAO production in animal intestine,lowered blood TMAO and interrupted plaque formation in blood vessels in the HFD-fed hamsters.Moreover,21 patients with atherosclerosis exhibited the average decrease of plaque score by 3.2%after oral BBR(0.5 g,bid)for 4 months(^(*)P<0.05,n=21);whereas the plaque score in patients treated with rosuvastatin plus aspirin,or clopidogrel sulfate or ticagrelor(4 months,n=12)increased by 1.9%.TMA and TMAO in patients decreased by 38 and 29%in faeces(^(*)P<0.05;^(*)P<0.05),and 37 and 35%in plasma(^(***)P<0.001;^(*)P<0.05),after 4 months on BBR.BBR might treat atherosclerotic plaque at least partially through decreasing TMAO in a mode of action similar to that of vitamins.Shu-Rong Ma Qian Tong Yuan Lin Li-Bin Pan Jie Fu Ran Peng Xian-Feng Zhang Zhen-Xiong Zhao Yang Li Jin-Bo Yu Lin Cong Pei Han Zheng-Wei Zhang Hang Yu Yan Wang Jian-Dong Jiang 2022Signal Transduction and Targeted Therapy2022,7,8:6
13Silencing of developmental genes by H3K27me3 and DNA methylation reflects the discrepant plasticity of embryonic and extraembryonic lineages显示文摘Xianfa Yang Boqiang Hu Yu Hou Yunbo Qiao Ran Wang Yingying Chen Yun Qian Su Feng Jun Chen Chang Liu Guangdun Peng Fuchou Tang Naihe Jing 2018Cell Research2018,28,5:5
14Association between socioeconomic status and chronic obstructive pulmonary disease in Jiangsu province, China: a population-based study显示文摘Background:Chronic obstructive pulmonary disease(COPD)is a common public health problem worldwide.Recent studies have reported that socioeconomic status(SES)is related to the incidence of COPD.This study aimed to investigate the association between SES and COPD among adults in Jiangsu province,China,and to determine the possible direct and indirect effects of SES on the morbidity of COPD.Methods:A cross-sectional study was conducted among adults aged 40 years and above between May and December of 2015 in Jiangsu province,China.Participants were selected using a multistage sampling approach.COPD,the outcome variable,was diagnosed by physicians based on spirometry,respiratory symptoms,and risk factors.Education,occupation,and monthly family average income(FAI)were used to separately indicate SES as the explanatory variable.Mixed-effects logistic regression models were introduced to calculate odds ratios(ORs)and 95%confidence intervals(CIs)for examining the SES-COPD relationship.A pathway analysis was conducted to further explore the pulmonary function impairment of patients with different SES.Results:The mean age of the 2421 participants was 56.63±9.62 years.The prevalence of COPD was 11.8%(95%CI:10.5%–13.1%)among the overall sample population.After adjustment for age,gender,residence,outdoor and indoor air pollution,body weight status,cigarette smoking,and potential study area-level clustering effects,educational attainment was negatively associated with COPD prevalence in men;white collars were at lower risk(OR:0.60,95%CI:0.43–0.83)of experiencing COPD than blue collars;compared with those within the lower FAI subgroup,participants in the upper(OR:0.68,95%CI:0.49–0.97)tertiles were less likely to experience COPD.Such negative associations between all these three SES indicators and COPD were significant among men only.Education,FAI,and occupation had direct or indirect effects on pulmonary function including post-bronchodilator forced expiratory volume in 1 s/forced vital capacity(FEV1/FVC),FEV1,FVC,and FEV1 percentage of predicted.Education,FAI,and occupation had indirect effects on pulmonary function indices of all participants mainly through smoking status,indoor air pollution,and outdoor air pollution.We also found that occupation could affect post-bronchodilator FEV1/FVC through body mass index.Conclusions:Education,occupation,and FAI had an adverse relationship with COPD prevalence in Jiangsu province,China.SES has both direct and indirect associations with pulmonary function impairment.SES is of great significance for COPD morbidity.It is important that population-based COPD prevention strategies should be tailored for people with different SES.Dan-Dan Zhang Jian-Nan Liu Qing Ye Zi Chen Ling Wu Xue-Qing Peng Gan Lu Jin-Yi Zhou Ran Tao Zhen Ding Fei Xu Linfu Zhou 2021Chinese Medical Journal2021,,13:5
15Microporous carbon nanofibers prepared by combining electrospinning and phase separation methods for supercapacitor显示文摘Microporous carbon nanofibers(MCNFs) derived from polyacrylonitrile nanofibers were fabricated via electrospinning technology and phase separation in the presence of polyvinylpyrrolidone(PVP).PVP together with a mixed solvent of N,N-Dimethylformamide and dimethyl sulfoxide was used as poreforming agent.The influences of PVP content in casting solution on the structure and electrochemical performance of the MCNFs were also investigated.The highest capacitance of 200 F/g was obtained on a three-electrode system at a scan rate of 0.5 A/g.The good performance was owing to the high specific surface area and the large amount of micro-pores,which enhanced the absorption and the transportation efficiency of electrolyte ion during charge/discharge process.This research indicated that the combination of electrospinning and phase separation technology could be used to fabricate microporous carbon nanofibers as electrode materials for supercapacitors with high specific surface area and outstanding electrochemical performance.Chang Liu Yongtao Tan Ying Liu Kuiwen Shen Bowu Peng Xiaoqin Niu Fen Ran 2016Journal of Energy Chemistry2016,25,4:5
16ANALYTICAL STUDY ON FLOW PROCESS OF FLOATING-OIL RECOVERY DEVICE FROM OIL-CONTAMINATED SEAWATER BY MHD METHOD显示文摘A new method of recovering maritime oil-spill based on electromagnetic force,the so-called MHD oil-spill recovery method was proposed in the IEECAS. The operating process of MHD channel was described in this article. Numerical study was carried out using a two-dimensional water-air two-phase model and the VOF method. The agreement between the numerical and the experimental results was reached.ZHANG Guo-yan PENG Yan ZHAO Ling-zhi LI Ran SHA Ci-wen 2007Journal of Hydrodynamics2007,19,2:5
17EXPERIMENTAL STUDY ON ALTERNATING MAGNETIC FIELD MAGNETOHYDRODYNAMIC PUMP显示文摘An experimental apparatus to investigate AC MHD pump was established, which mainly consists of a rotary permanent magnet with 4 poles an annular channel, a motor, a shaft and a platform. The magnet generates a field similar to sinusoid with the maximum of 0.9 T in the channel when it is rotated up by the motor to simulate an AC magnetic field. This moving magnetic field acts on the conductive fluid in the channel, and produces an electromagnetic force to move the fluid in the same direction as that of the magnet rotating. Experiments were carried out to investigate the performance of the pump. Flow velocity in the annular channel was measured for different conductivities and rotating speeds of the magnet. The results show that the flow rate and pressure increase as the magnetic field strength, fluid conductivity and frequency of the magnetic field increase.PENG Yan ZHAO Ling-zhi SONG Shu-jun SHA Ci-wen LI Ran XU Yu-yu 2008Journal of Hydrodynamics2008,20,5:5
18Comprehensive Marine Observing Experiment Based on High-Altitude Large Unmanned Aerial Vehicle(South China Sea Experiment2020 of the “Petrel Project”)显示文摘In collaboration with 12 other institutions, the Meteorological Observation Center of the China Meteorological Administration undertook a comprehensive marine observation experiment in the South China Sea using the Yilong-10 high-altitude large unmanned aerial vehicle(UAV). The Yilong-10 UAV carried a self-developed dropsonde system and a millimeter-wave cloud radar system. In addition, a solar-powered unmanned surface vessel and two drifting buoys were used. The experiment was further supported by an intelligent, reciprocating horizontal drifting radiosonde system that was deployed from the Sansha Meteorological Observing Station, with the intent of producing a stereoscopic observation over the South China Sea. Comprehensive three-dimensional observations were collected using the system from 31 July to2 August, 2020. This information was used to investigate the formation and development processes of Typhoon Sinlaku(2020). The data contain measurements of 21 oceanic and meteorological parameters acquired by the five devices, along with video footage from the UAV. The data proved very helpful in determining the actual location and intensity of Typhoon Sinlaku(2020). The experiment demonstrates the feasibility of using a high-altitude, large UAV to fill in the gaps between operational meteorological observations of marine areas and typhoons near China, and marks a milestone for the use of such data for analyzing the structure and impact of a typhoon in the South China Sea. It also demonstrates the potential for establishing operational UAV meteorological observing systems in the future, and the assimilation of such data into numerical weather prediction models.Xuefen ZHANG Liangxu LI Rongkang YANG Ran GUO Xia SUN Jianping LUO Hongbin CHEN Daxin LIU Kebing TANG Wenwu PENG Xiaodong HAN Qiyun GUO Xiaoxia LI Xikun FEI 2021Advances in Atmospheric Sciences2021,38,4:4
19Laparoscopic splenectomy for splenic littoral cell angioma显示文摘AIM:To establish the safety and feasibility of laparoscopic splenectomy(LS) for littoral cell angioma(LCA).METHODS:From September 2003 to November 2013,27 patients were diagnosed with LCA in our institution.These patients were divided into two groups based on operative procedure:LS(13 cases,Group 1) and open splenectomy(14 cases,Group 2).Data were collected retrospectively by chart review.Comparisons were performed between the two groups in terms of demographic characteristics(sex and age); operative outcomes(operative time,estimated blood loss,transfusion,and conversion); postoperative details(length of postoperative stay and complications); and follow-up outcome.RESULTS:LS was successfully carried out in all patients except one in Group 1,who required conversion to hand-assisted LS because of perisplenic adhesions.The average operative time for patients in Group 1 was significantly shorter than that in Group 2(127 ± 34 min vs 177 ± 25 min,P = 0.001).The average estimated blood loss in Group 1 was significantly lower than in Group 2(62 ± 48 m L vs 138 ± 64 m L,P < 0.01).No patient in Group 1 required a blood transfusion,whereas one in Group 2 required a transfusion.Two patients in Group 1 and four in Group 2 suffered from postoperative complications.All the complications were cured by conservative therapy.There were no deaths in our series.All patients were followed up and no recurrence or abdominal metastasis were found.CONCLUSION:LS for patients with LCA is safe and feasible,with preferable operative outcomes and longterm tumor-free survival.Yun-Qiang Cai Xing Wang Xun Ran Xu-Bao Liu Bing Peng 2015World Journal of Gastroenterology2015,21,21:4
20NF-κB: A novel therapeutic pathway for gastroesophageal reflux disease?显示文摘Although gastroesophageal reflux disease(GERD),a common chronic disease in clinical practice,has been widely studied,its potential adverse impact on patients is still a significant clinical concern.It is necessary to understand the pathogenesis of the disease and choose appropriate treatment according to its mechanism.The pathogenesis of GERD is diverse and complex.As the traditional treatment methods are expensive and ineffective in alleviating symptoms in some patients,new treatment options need to be explored.Our previous study suggested that the activation of nuclear factor-kappa beta(NF-κB)in esophageal mucosa may be related to the injury of epithelial barrier function caused by reflux.Based on the literature and our previous study results,it is speculated that inhibition of NF-κB activation may block the insult of GERD on the esophageal mucosal barrier.NF-κB may play an important role in the development of GERD.This article reviews the pathogenesis of GERD and the relationship between NF-κB and GERD,in order to provide new strategies for the treatment of GERD.Mao-Lin Zhang Long-Qing Ran Meng-Jun Wu Qin-Chen Jia Zhi-Ming Qin Yong G Peng 2022World Journal of Clinical Cases2022,10,24:3
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