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| 1 | Analysis of status and countermeasures of cancer incidence and mortality in China显示文摘Cancer is the leading cause of human deaths in the world and produces serious economic burdens. On September 12, 2018, the academic journal A Cancer Journal for Clinicians published an article about the latest statistics of cancers worldwide, which provided a status report on the global burden of 36 cancers in 185 countries worldwide. Cancer has also become a serious public health problem in China and caused more and more attention of the government and people in recent years. This review analyzes the incidence, mortality and prevalent trend of cancers in China, discusses the reasons behind this status, and reviews the potential countermeasures for cancer prevention and control in China. | Chunchun Wu Mengna Li Hanbing Meng Yukun Liu Weihong Niu Yao Zhou Ran Zhao Yumei Duan Zhaoyang Zeng Xiaoling Li Guiyuan Li Wei Xiong Ming Zhou | 2019 | Science China(Life Sciences)2019,62,5: | 175 |
| 2 | Laparoscopic vs open total gastrectomy for gastric cancer:A meta-analysis显示文摘AIM:To conduct a meta-analysis comparing laparoscopic total gastrectomy(LTG)with open total gastrectomy(OTG)for the treatment of gastric cancer.METHODS:Major databases such as Medline(PubMed),Embase,Academic Search Premier(EBSCO),Science Citation Index Expanded and the Cochrane Central Register of Controlled Trials(CENTRAL)in The Cochrane Library were searched for studies comparing LTG and OTG from January 1994 to May 2013.Evaluated endpoints were operative,postoperative and oncological outcomes.Operative outcomes included operative time and intraoperative blood loss.Postoperative recovery included time to first fatus,time to first oral intake,hospital stay and analgesics use.Postoperative complications comprised morbidity,anastomotic leakage,anastomotic stenosis,ileus,bleeding,abdominal abscess,wound problems and mortality.Oncological outcomes included positive resection margins,number of retrieved lymph nodes,and proximal and distal resection margins.The pooled effect was calculated using either a fixed effects or a random effects model.RESULTS:Fifteen non-randomized comparative studies with 2022 patients were included(LTG-811,OTG-1211).Both groups had similar short-term oncological outcomes,analgesic use(WMD-0.09;95%CI:-2.39-2.20;P=0.94)and mortality(OR=0.74;95%CI:0.24-2.31;P=0.61).However,LTG was associated with a lower intraoperative blood loss(WMD-201.19 mL;95%CI:-296.50--105.87 mL;P<0.0001)and overall complication rate(OR=0.73;95%CI:0.57-0.92;P=0.009);fewer wound-related complications(OR=0.39;95%CI:0.21-0.72;P=0.002);a quicker recovery of gastrointestinal motility with shorter time to frst fatus(WMD-0.82;95%CI:-1.18--0.45;P<0.0001)and oral intake(WMD-1.30;95%CI:-1.84--0.75;P<0.00001);and a shorter hospital stay(WMD-3.55;95%CI:-5.13--1.96;P<0.0001),albeit with a longer operation time(WMD 48.25 min;95%CI:31.15-65.35;P<0.00001),as compared with OTG.CONCLUSION:LTG is safe and effective,and may offer some advantages over OTG in the treatment of gastric cancer. | Jun-Jie Xiong Quentin M Nunes Wei Huang Chun-Lu Tan Neng-Wen Ke Si-Ming Xie Xun Ran Hao Zhang Yong-Hua Chen Xu-Bao Liu | 2013 | World Journal of Gastroenterology2013,19,44: | 11 |
| 3 | Pd-Ag alloy hollow nanostructures with interatomic charge polarization for enhanced electrocatalytic formic acid oxidation显示文摘蚁的酸氧化是在膜(PEM ) 燃料细胞,活跃地点和种吸附 / 激活在玩调音的 protonexchange 的重要 electrocatalytic 反应角色。在这研究,我们为申请与高活跃的表面区域开发了空 Pd-Ag 合金 nanostructures 到 electrocatalytic 蚁的酸氧化。当 Ag 的某个数量被合并到 Pd 时格子,已经是为蚁的酸氧化的高度活跃的材料, electrocatalytic 活动能显著地被增加。是由理论模拟显示了,在 Pd 和 Ag 之间联合在 Pd 催化地点上导致极化费用,它能提高 HCOO 的吸附 * 种类。作为结果,设计 electrocatalysts 能完成减少的 Pd 用法并且同时提高催化性质。这研究代表同时制作空结构增加活跃地点的数字并且利用 interatomic 相互作用向改进 electrocatalytic 性能调节种类吸附 / 激活的一条途径。 | Dong Liu Maolin Xie Chengming wang Lingwen Liao Lu Qiu Jun Ma Hao Huang Ran Long Jun Jiang Yujie Xiong | 2016 | Nano Research2016,9,6: | 11 |
| 4 | Geochronology and petrogenesis of the mafic dykes from the Purang ophiolite:Implications for evolution of the western Yarlung-Tsangpo suture zone,southwestern Tibet显示文摘The>2000 km Indus-Yarlung Tsangpo suture zone(IYSZ)is composed of the Neo-tethys oceanic remnants,flysch units and related continental rocks,which has been regarded as the boundary between the Eurasian and Indian terranes.Among the ophiolitic complexes,the Purang ophiolite is the biggest massif in the IYSZ,and many studies have been conducted on this ophiolite.However,previous studies have mainly focused on harzburgite,clinopyroxenite and dunite.Field observations show that mafic dykes were emplaced within the Purang ophiolite.However,petrogenetic evolutions of those mafic dykes are poorly understood.In this study,we present new LA-ICP-MS zircon U-Pb dating results,whole-rock geochemistry and Sr-Nd-Hf isotope analyses for microgabbro,gabbro and dolerite dykes from the Purang ophiolite of the southwestern IYSZ,respectively.Three samples yielded zircon U-Pb ages of144.2±2.1 Ma.127.9±2.3 Ma and 126.5±0.42 Ma,suggesting two different phases of magmatic activities distinctly.Whole-rock geochemical results suggest that the gabbro samples show alkaline features marked by enrichments of light rare earth elements(LREE)and large-ion lithophile elements(LILE),as well as Nb-Ta elements,suggesting an oceanic island basalt-like(OIB-like)geochemical affinity.However,the dolerite and microgabbro samples demonstrate sub-alkaline characteristics with normal mid-oceanic ridge basalt-like(N-MORB-like)geochemical features.Three distinct mafic dykes show significant Rb element depletion.The geochemical data and Sr-Nd-Hf isotopic features suggest that the microgabbro and gabbro rocks were derived from a depleted mantle that had been metasomatized by partial melts of sediments and enriched slab-derived fluids.The dolerite was also originated from a depleted mantle marked by significantly depleted Sr-Nd-Hf compositions,which was not influenced by enriched slab-derived fluids and sediments contamination during subsequent evolution.The isotope and geochemical data and tectonic diagrams suggest a tectonic transition from a within-plate to a midoceanic ridge basalt-like(MORB-like)setting during the period from ca.144 Ma to 127 Ma.Combined with regional background and this study,we propose that these mafic dykes were formed in an oceanic back-arc basin setting.Additionally,integrated with previous studies,we suggest that the geodynamic evolution of the southwestern and central parts of the Neo-Tethys oceanic basin is comparable in Early Cretaceous. | Fahui Xiong Yuanku Meng Jingsui Yang Zhao Liu Xiangzhen Xu Alireza Eslami Ran Zhang | 2020 | Geoscience Frontiers2020,11,1: | 10 |
| 5 | Cognitive impairment and the associated risk factors among the elderly in the Shanghai urban area:a pilot study from China显示文摘Objectives:Our study aimed to investigate the prevalence of cognitive impairment(CI)and the associated risk factors among elderly people in Shanghai urban area,China.Methods:A population-based survey was conducted among people aged 55 years or older in urban areas of Shanghai.Face-to-face interviews were carried out to collect information including demographic characteristics,medical history,and medication use,etc.The validated Chinese version of the Mini-Mental State Examination(MMSE)was used to screen subjects with CI,and the criteria of CI were adjusted for education levels.Results:A total of 3,176 home-living residents(≥55 years old)were included in the study.Among them,266 people(102 men and 164 women)were identified as cognition impaired,with a prevalence of 8.38%(266/3,176,95%CI:(8.26,8.49))for both genders,9.21%(102/1,107,95%CI:(9.18,9.33))for men and 7.93%(164/2,069,95%CI:(7.80,8.09))for women,respectively.Furthermore,we found that several significant risk factors,including social factors(education,number of children,marriage status,and family structure),physiological factors(age,blood glucose level,and obesity),factors on living styles(physical exercise,diet&chronic diseases),and genetic factor(ApoE),associated with CI onset.Conclusions:This study confirms the high prevalence of CI among the elderly population in the Shanghai urban in China,similar to previous epidemiologic studies in Western countries.The putative risk factors associated with CI merit further investigated. | Jun-Peng Zhuang Gang Wang Qi Cheng Li-Ling Wang Rong Fang Li-Hua Liu Ran Xiong Yu Zhang Ya-Xing Gui Wen-Yan Kang Hui-Dong Tang Sheng-Di Chen | 2012 | Translational Neurodegeneration2012,1,1: | 10 |
| 6 | Sequential fate-switches in stem-like cells drive the tumorigenic trajectory from human neural stem cells to malignant glioma显示文摘Glioblastoma(GBM)is an incurable and highly heterogeneous brain tumor,originating from human neural stem/progenitor cells(hNSCs/hNPCs)years ahead of diagnosis.Despite extensive efforts to characterize hNSCs and end-stage GBM at bulk and single-cell levels,the de novo gliomagenic path from hNSCs is largely unknown due to technical difficulties in early-stage sampling and preclinical modeling.Here,we established two highly penetrant hNSC-derived malignant glioma models,which resemble the histopathology and transcriptional heterogeneity of human GBM.Integrating time-series analyses of whole-exome sequencing,bulk and single-cell RNA-seq,we reconstructed gliomagenic trajectories,and identified a persistent NSC-like population at all stages of tumorigenesis.Through trajectory analyses and lineage tracing,we showed that tumor progression is primarily driven by multi-step transcriptional reprogramming and fate-switches in the NSC-like cells,which sequentially generate malignant heterogeneity and induce tumor phenotype transitions.We further uncovered stage-specific oncogenic cascades,and among the candidate genes we functionally validated C1QL1 as a new glioma-promoting factor.Importantly,the neurogenic-to-gliogenic switch in NSC-like cells marks an early stage characterized by a burst of oncogenic alterations,during which transient AP-1 inhibition is sufficient to inhibit gliomagenesis.Together,our results reveal previously undercharacterized molecular dynamics and fate choices driving de novo gliomagenesis from hNSCs,and provide a blueprint for potential early-stage treatment/diagnosis for GBM. | Xiaofei Wang Ran Zhou Yanzhen Xiong Lingling Zhou Xiang Yan Manli Wang Fan Li Chuanxing Xie Yiming Zhang Zongyao Huang Chaoqiong Ding Kaidou Shi Weida Li Yu Liu Zhongwei Cao Zhen-Ning Zhang Shengtao Zhou Chong Chen Yan Zhang Lu Chen Yuan Wang | 2021 | Cell Research2021,31,6: | 8 |
| 7 | N-doped carbon-stabilized PtCo nanoparticles derived from Pt@ZIF-67: Highly active and durable catalysts for oxygen reduction reaction显示文摘The development of catalysts with high activity and durability for the cathodicoxygen reduction reaction (ORR) in both alkaline and acidic media is importantfor improving the performance of the proton exchange membrane (PEM) fuelcells. This can be achieved by dispersing Pt-based alloy nanoparticles insideN-doped porous carbon frameworks. However, it still requires the developmentof a facile method towards synthesizing this unique hybrid structure. In this work,we demonstrate that N-doped carbon-stabilized PtCo nanoparticles (PtCo@NC)can be facilely synthesized via thermal decomposition of Pt-incorporatedCo-based zeolitic imidazolate framework (Pt@ZIF-67). The thickness of the carbonframework can be optimized to enable excellent durability, in sharp contrastto a commercial Pt/C catalyst. The mass activities achieved by optimizing thethickness of the carbon framework are 0.80 and 0.82 A-mg^-1, at 0.9 V vs. RHE inalkaline and acidic electrolytes, respectively, which are nearly 8 times greaterthan those of the Pt/C. This work provides an alternative approach to low-costand high-verformance catalvsts for both alkaline and acidic fuel cells. | Nana Du Chengming Wang Ran Long Yujie Xiong | 2017 | Nano Research2017,10,9: | 8 |
| 8 | LncRNA TUG1 promotes cisplatin resistance in esophageal squamous cell carcinoma cells by regulating Nrf2显示文摘Esophageal squamous cell carcinoma(ESCC)is a common malignancy with poor prognosis.The drug resistance compromises the efficacy of chemotherapy for ESCC.Long non-coding RNA taurine upregulated gene 1(TUG1)has been identified as a promoter of cancer progression and chemotherapy resistance in many malignancies.However,the exact role of TUG1 in ESCC chemotherapy resistance remains unclear.In this study,we showed that TUG1 expression in TE-1-derived cisplatin(DDP)-resistant(TE-1/DDP)cells was higher than that in TE-1 cells.Furthermore,TUG1 promoted DDP resistance in TE-1 and TE-1/DDP cells by promoting cell proliferation,suppressing cell apoptosis,and elevating protein expression of the classical multi-drug resistance-related P-gp.In contrast,TUG1 knockdown exerted an opposite effect.Mechanistically,RNA pull-down and RNA immunoprecipitation assays confirmed that TUG1 directly bound to nuclear factor(erythroid-derived 2)-like 2(Nrf2)protein and elevated Nrf2 protein expression.Moreover,Nrf2-neutralizing antibody effectively reversed the TUG1 overexpression-mediated promotion of ESCC cell resistance to DDP.In conclusion,our findings demonstrated that TUG1 promoted ESCC cell resistance to DDP,at least in part,through upregulating Nrf2. | Zhenghua Zhang Ran Xiong Caiwei Li Meiqing Xu Mingfa Guo | 2019 | Acta Biochimica et Biophysica Sinica2019,51,8: | 7 |
| 9 | Anatomical characteristics of patients with symptomatic severe aortic stenosis in China显示文摘With accumulating evidence of transcatheter aortic valve replacement(TAVR)worldwide,it is gradually realized that patients being treated are different across different coun-tries,including but not limited to their age,habitus,disease etiology,aortic valve morphology,and sizes of structures.[1]In China,the average age of TAVR patients is around 5 years younger than industrialized countries,[2]making Chinese patients a good predictive sample of what the industrialized countries might see in TAVR screening in the near future due to the expansion of this technique to younger patients,but anatomical features appreciated from multi-slice computed tomography(MSCT)in the Chinese patient population have not been well demonstrated. | Tian-Yuan Xiong Yi-Ming Li Yi-Jun Yao Yu-Heng Jia Kai Xu Zhen-Fei Fang Jun Jin Guo-Sheng Fu Yi-Ning Yang Lei Jiang Wei-Dong Li Yan-Qing Wu Yan-Song Guo Ran Guo Yun-Dai Chen Yi Li Yi-Bing Shao Yi Zhang Bo-Sen Yang Yi-Ke Zhang Jing-Jing He Kai-Yu Jia Sheng-Hu He Fa-Xin Ren Jian-Cheng Xiu Xing-Hua Gu Liang-Long Chen Ke Han Yuan Feng Mao Chen | 2021 | Chinese Medical Journal2021,,22: | 5 |
| 10 | LRP6 downregulation promotes cardiomyocyte proliferation and heart regeneration显示文摘The adult mammalian heart is thought to be a terminally differentiated organ given the postmitotic nature of cardiomyocytes.Consequently,the potential for cardiac repair through cardiomyocyte proliferation is extremely limited.Low-density lipoprotein receptor-related protein 6(LRP6)is a Wnt co-receptor that is required for embryonic heart development.In this study we investigated the role of LRP6 in heart repair through regulation of cardiomyocyte proliferation.Lrp6 deficiency increased cardiomyocyte cell cycle activity in neonatal,juvenile and adult mice.Cardiomyocyte-specific deletion of Lrp6 in the mouse heart induced a robust regenerative response after myocardial infarction(MI),led to reduced MI area and improvement in left ventricular systolic function.In vivo genetic lineage tracing revealed that the newly formed cardiomyocytes in Lrp6-deficient mouse hearts after MI were mainly derived from resident cardiomyocytes.Furthermore,we found that the pro-proliferative effect of Lrp6 deficiency was mediated by the ING5/P21 signaling pathway.Gene therapy using the adeno-associated virus(AAV)9 miRNAi-Lrp6 construct promoted the repair of heart injury in mice.Lrp6 deficiency also induced the proliferation of human induced pluripotent stem cell-derived cardiomyocytes(iPSC-CMs).Our study identifies LRP6 as a critical regulator of cardiomyocyte proliferation,which may lead to the development of a novel molecular strategy to promote myocardial regeneration and repair. | Yahan Wu Liping Zhou Hongyu Liu Ran Duan Huixing Zhou Fulei Zhang Xiaoyu He Dongbo Lu Ke Xiong Maolin Xiong Jinzhu Zhuang Yi Liu Li Li Dandan Liang Yi-Han Chen | 2021 | Cell Research2021,31,4: | 5 |
| 11 | Hydriding Pd cocatalysts: An approach to giant enhancement on photocatalytic CO2 reduction into CH4显示文摘进高增值 CH 4 的公司 2 的 Photocatalytic 减小是精力和环境危机的一个有希望的解决方案。与 cocatalysts 集成半导体能为 photocatalytic 公司 2 减小改进这些活动;然而,大多数金属 cocatalysts 主要生产公司和 H 2 。此处,我们为显著地提高公司 2 的 photocatalytic 减小进 CH 4 报导一条 cocatalyst hydridation 途径。进 PdH 0.43 的 Hydriding Pd cocatalysts 在表演改进起了一个双作用。是由我们的同位素的标记实验揭示了, PdH 0.43 氢化物 cocatalysts 减少了 H 2 进化,它压制了 H 2 生产并且便于 CO 中介的变换进最后的产品:CH 4 。同时, hydridation 支持了在 cocatalysts 上套住的电子,改进充电分离。这条途径在 Pd 上从 3.2% ~ 63.6% 在 CH 4 生产增加了 photocatalytic 选择 { 100 } 并且从 15.6% ~ 73.4% 在 Pd 上 { 111 } 。结果提供卓见进 photocatalytic 机制研究并且为向 photocatalytic 公司 2 变换设计材料介绍新机会。 | Yuzhen Zhu Chao Gao Song Bai Shuangming Chen Ran Long Li Song Zhengquan Li Yujie Xiong | 2017 | Nano Research2017,10,10: | 5 |
| 12 | Active sites in CO2 hydrogenation over confined VOx-Rh catalysts显示文摘Metal oxide-promoted Rh-based catalysts have been widely used for CO2 hydrogenation,especially for the ethanol synthesis.However,this reaction usually suffers low CO2 conversion and alcohols selectivity due to the formation of byproducts methane and CO.This paper describes an efficient vanadium oxide promoted Rh-based catalysts confined in mesopore MCM-41.The Rh-0.3VO/MCM-41 catalyst shows superior conversion(〜12%)and ethanol selectivity(〜24%)for CO2 hydrogenation.The promoting effect can be attributed to the synergism of high Rh dispersion by the confinement effect of MCM-41 and the formation of VOr-Rh interface sites.Experimental and theoretical results indicate the formation of til-CO at VOv-Rh interface sites is easily dissociated into*CH X,and then*CH X can be inserted by CO to form CH3,*CO followed by CH3*CO hydrogenation to ethanol. | Guishuo Wang Ran Luo Chengsheng Yang Jimin Song Chuanye Xiong Hao Tian Zhi-Jian Zhao Rentao Mu Jinlong Gong | 2019 | Science China Chemistry2019,62,12: | 4 |
| 13 | The Regulation of cGAS显示文摘The cGAS-MITA pathway of cytosolic DNA sensing plays essential roles in immune response against pathogens that contain DNA or with DNA production in their life cycles. The cGAS-MITA pathway also detects leaked or aberrant accumulated self DNA in the cytoplasm under certain pathological conditions, such as virus induced cell death, DNA damage, mitochondria damage, gene mutations, which results in autoimmune diseases. Therefore, the cGAS-MITA pathway must be tightly controlled to ensure proper immune response against pathogens and to avoid autoimmune diseases. The regulation of cGAS-MITA pathway at MITA-level have been extensively explored and reviewed elsewhere,here we provide a summary and perspective on recent advances in understanding of the cGAS regulation. | Meiguang Xiong Suyun Wang Yan-Yi Wang Yong Ran | 2018 | Virologica Sinica2018,33,2: | 4 |
| 14 | Association of serum gamma-glutamyl transferase with treatment outcome in chronic hepatitis B patients显示文摘AIM:To investigate the association of serum gammaglutamyl transferase(GGT) levels with chronic hepatitis B infection and hepatitis B e antigen(HBe Ag) seroconversion.METHODS:A retrospective study was performed on clinical data collected from patients who had been positive for hepatitis B surface antigen for > 6 mo and who were antiviral-treatment na?ve(n = 215) attending the Hepatitis Clinic at Nanjing Drum Tower Hospital between August 2010 and December 2013. Healthy individuals without liver disease(n = 83) were included as controls. Patients were categorized into four groups based on disease status as recommended by the European Association for the Study of the Liver:immune tolerance(IT; n = 47),HBe Ag-positive hepatitis(EPH; n = 93),HBe Ag-negative hepatitis(ENH;n = 20),and inactive carrier(IC; n = 55). Prediction of complete response(CR) based on serum GGT was also examined in EPH patients(n = 33) treated for 48 wk with nucleos(t)ide analogue(NA) therapy,including lamivudine plus adefovir combination therapy(n = 20) or entecavir monotherapy(n = 13). CR was defined as a serum hepatitis B virus DNA level < 500 copies/m L and HBe Ag seroconversion by 48 wk of treatment. RESULTS:Serum GGT levels were significantly increased in EPH and ENH patients relative to the IT,IC,and healthy control groups(P < 0.01 for all). However,no significant difference in serum GGT levels was found between the EPH and ENH groups. Baseline serum GGT levels were significantly higher in patients who achieved CR(7/33; 21.2%) compared to patients in the non-CR group(26/33; 78.8%; P = 0.011). In addition,the decline in serum GGT was greater in CR patients compared to non-CR patients after 24 wk and 48 wk of treatment(P = 0.012 and P = 0.008,respectively). The receiver operating characteristic curve yielded a sensitivity of 85.71% and a specificity of 61.54% at a threshold value of 0.89 times the upper limit of normal for baseline serum GGT in the prediction of CR following NA therapy. CONCLUSION:Serum GGT is significantly elevated in EPH and ENH patients and is a potential biomarker for the prediction of HBe Ag seroconversion following NA therapy. | Rui Huang Chen-Chen Yang Yong Liu Juan Xia Ran Su Ya-Li Xiong Gui-Yang Wang Zhen-Hua Sun Xiao-Min Yan Shan Lu Chao Wu | 2015 | World Journal of Gastroenterology2015,21,34: | 4 |
| 15 | Enhancing the catalytic efficiency of the Heck coupling reaction by forming 5 nm Pd octahedrons using kinetic control显示文摘异构的催化作用通过界面的反应的一个过程发生;因此,表面方面和尺寸控制能增加催化效率。八面的 Pd nanocrystals,围住由 { 111 } 方面,应该是理想的几何形状为哎呀联合反应;然而,综合是挑战性的有用存在帽子代理人技术的相对一致的尺寸分布的 5 nm Pd 八面体。这里,我们把钯用作一个模型系统调查原子增加的动力学怎么能精确用注射泵被控制。作为结果,我们的方法生产了象 5 nm 一样小的 Pd 八面体,它增加了催化效率哎呀当减少使用的催化剂的重量时,联合反应。 | Ran Long Di Wu Yaping Li Yu Bai Chengming Wang Li Song Yujie Xiong | 2015 | Nano Research2015,8,6: | 4 |
| 16 | ABORT-like detector to combat active deceptive jamming in a network of LFM radars显示文摘This paper studies an electronic counter-counter measures(ECCM) scheme combating against deceptive electronic counter measure(ECM) techniques. An adaptive detector exploiting generalized likelihood ratio test(GRLT) criterion is applied to detect the presence of deceptive jamming in fractional Fourier transform(Fr FT) domain. First, the generating mechanism of spurious frequencies is analyzed based on the Volterra serial. The proposed nonlinear distortion model based on power amplifier behavior is robust in distortion analysis when the memory effect is considered.Second, a modified adaptive beamformer orthogonal rejection test(ABORT) like detector in closed form is built. The proposed detector can discriminate the echo and deceptive jamming adaptively by exploiting primary data and secondary data. This ECCM scheme is capable of guaranteeing the performance without the restriction of orthogonality, which is essential for the ABORT detectors. The expansion to radar network is discussed as a special case at the final part of this paper. Numerical simulations demonstrate the effectiveness of the proposed method. | Yuan ZHAO Zhi RAN Ying XIONG Bin TANG | 2017 | Chinese Journal of Aeronautics2017,30,4: | 3 |
| 17 | Slightly ruthenium doping enables better alloy nanoparticle exsolution of perovskite anode for high-performance direct-ammonia solid oxide fuel cells显示文摘Fuel flexibility is one of the most distinguished advantages of solid oxide fuel cells(SOFCs)over other low-temperature fuel cells.Furthermore,the combination of ammonia fuel and SOFCs technology should be a promising clean energy system after considering the high energy density,easy transportation/storage,matured synthesis technology and carbon-free nature of NH_(3) as well as high efficiency of SOFCs.However,the large-scale applications of direct-ammonia SOFCs(DASOFCs)are strongly limited by the inferior anti-sintering capability and catalytic activity for ammonia decomposition reaction of conventional nickel-based cermet anode.Herein,a slightly ruthenium(Ru)doping in perovskite oxides is proposed to promote the alloy nanoparticle exsolution,enabling better DA-SOFCs with enhanced power outputs and operational stability.After treating Ru-doped Pr_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.75)Ru_(0.05)O_(3-δ) single-phase perovskite in a reducing atmosphere,in addition to the formation of two layered Ruddlesden-Popper perovskites and Pr_(2)O_(3) nanoparticles(the same as the Ru-free counterpart,Pr_(0.6)Sr_(0.4)Co_(0.2)Fe_(0.8)O_(3-δ)),the exsolution of CoFeRu-based alloy nanoparticles is remarkably promoted.Such reduced Pr_(0.6)Sr0.4Co_(0.2)Fe_(0.75)Ru_(0.05)O_(3-δ) composite anode shows superior catalytic activity and stability for NH_(3) decomposition reaction as well as anti-sintering capability in DA-SOFCs to those of reduced Pr0.6Sr0.4Co0.2Fe0.8O_(3-δ)due to the facilitated nanoparticle exsolution and stronger nanoparticle/substrate interaction.This work provides a facile and effective strategy to design highly active and durable anodes for DA-SOFCs,promoting large-scale applications of this technology. | Xiandong Xiong Jian Yu Xiaojian Huang Dan Zou Yufei Song Meigui Xu Ran Ran Wei Wang Wei Zhou Zongping Shao | 2022 | Journal of Materials Science & Technology2022,,30: | 3 |
| 18 | Etching approach to hybrid structures of PtPd nanocages and graphene for efficient oxygen reduction reaction catalysts显示文摘Cathodic oxygen reduction reaction (ORR) is a highly important electrochemical reaction in renewable-energy technologies. In general, the surface area, exposed facets and electrical conductivity of catalysts all play important roles in determining their electrocatalytic activities, while their performance durability can be improved by integration with supporting materials. In this work we have developed a method to synthesize hybrid structures between PtPd bimetallic nanocages and graphene by employing selective epitaxial growth of single-crystal Pt shells on Pd nanocubes supported on reduced graphene oxide (rGO), followed by Pd etching. The hollow nature, {100} surface facets and bimetallic composition of PtPd nanocages, together with the good conductivity and stability of graphene, enable high electrocatalytic performance in ORR. The obtained PtPd nanocage-rGO structures exhibit mass activity (0.534 A.m-1) and which are 4.4 times and 3.9 times greater than the specific activity (0.482 mA-cm-2) corresponding values for Pt/C. | Song Bai Chengming Wang Wenya Jiang Nana Du Jing Li Junteng Du Ran Long Zhengquan Li Yujie Xiong | 2015 | Nano Research2015,8,9: | 3 |
| 19 | MAGI3 Suppresses Glioma Cell Proliferation via Upregulation of PTEN Expression显示文摘Objective To investigate the role and molecular mechanism of membrane-associated guanylate kinase inverted 3(MAGI3) in glioma cell proliferation. Methods The expression levels of MAGI3 and PTEN were assessed in glioma samples by Western blotting. MAGI3 was stably transfected into C6 glioma cells to obtain C6-MAGI3 cells. Then, the proliferation, the expression levels of MAGI3 and PTEN, and Akt phosphorylation were evaluated in C6 and C6-MAGI3 cells. Xenograft tumor models were established by subcutaneous injection of C6 and C6-MAGI3 cells into nude mice, and the growth rates of xenografts in the mice were compared. The potential role of MAGI3 expression in PI3K/Akt signaling activation was further investigated by examining the correlation between MAGI3 expression and the expression of PI3K/Akt signaling downstream target genes in a glioma dataset using gene set enrichment analysis(GSEA). Results Expression levels of MAGI3 and PTEN were significantly downregulated in gliomas. Overexpression of MAGI3 in the glioma C6 cell line upregulated PTEN protein expression, inhibited the phosphorylation of Akt, and suppressed cell proliferation. MAGI3 overexpression also inhibited the growth of C6 glioma tumor xenografts in nude mice. Analysis based on the GEO database confirmed the negative correlation between activation of PI3K/Akt pathway and MAGI3 mR NA levels in human glioma samples. Conclusion The loss of MAGI3 expression in glioma may enhance the proliferation of glioma cells via downregulation of PTEN expression, leading to the activation of the PI3K/Akt pathway. MAGI3 is a potential glioma suppressor. | MA Qian ZHANG Yan MENG Ran XIE Kun Ming XIONG Ying LIN Song HE Zong Lin K. TAO Tao YANG Ying ZHAO Ji Zong HE Jun Qi | 2015 | Biomedical and Environmental Sciences2015,28,7: | 3 |
| 20 | Fundamentals of coal topping gasification: Characterization of pyrolysis topping in a fluidized bed reactor显示文摘 | Ran Xiong Li Dong Jian Yu Xiaofang Zhang Ling Jin Guangwen Xu | 2009 | Fuel Processing Technology2009,,8: | 3 |