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72篇 您的检索式:作者名="Xia Dou"
    题名 作者 年代 出处 被引量
1Paeoniflorin suppresses TGF-β mediated epithelial- mesenchymal transition in pulmonary fibrosis through a Smad-dependent pathway显示文摘Yu JI Yan-nong DOU Qian-wen ZHAO Ji-zhou ZHANG Yan YANG Ting WANG Yu-feng XIA Yue DAI Zhi-feng WEI 2016Acta Pharmacologica Sinica2016,37,6:48
2Determining "abnormal" levator hiatus distensibility using three-dimensional transperineal ultrasound in Chinese women显示文摘The dimension of the levator hiatus is a possible predictor of pelvic organ prolapse (POP). Thisretrospective study investigated 360 women who went to urogynecological clinic for pelvic floor discomfort.Levator hiatus dimensions were obtained by three-dimensional transperineal ultrasound and results werecompared between women with and without significantly objective prolapse (International Continence SocietyPOP quantification, grade 2 or higher). Receiver operating characteristic (ROC) curve analyses were performed todetermine valid screening index for detecting abnormal levator hiatus distensibility. Women with significantlyobjective prolapse had significantly higher levator hiatus dimensions than those without (all P 〈 0.001). ROCcurve analyses confirmed that hiatal area (HA) of 19.5 cm2 during Valsalva maneuver can be used as single-screening index for abnormal levator hiatus distensibility with sensitivity of 0.80 and specificity of 0.70. In thisstudy, we used a two-step method and achieved higher sensibility (0.80 vs. 0.87) without reducing specificity (0.70vs. 0.71) compared with a single-screening index method. As a result, we suggest that HA ≥ 19.5 cm2 duringValsalva maneuver is an indicator of abnormal levator hiatus distensibility in Chinese women and that the two-step method has higher sensitivity in detecting abnormal distensibility.Chaoran Dou Qin Li Tao Ying Yulin Yan Xia Wang Bing Hu 2018Frontiers of Medicine2018,12,5:21
3Mycoplasma pneumoniae Macrolide Resistance and MLVA Typing in Children in Beijing,China,in 2016:Is It Relevant?显示文摘Objective The aim of this study is to investigate the macrolide resistance rate and molecular type with multiple-locus variable-number tandem-repeat analysis(MLVA)of Mycoplasma pneumoniae of Beijing in 2016 in pediatric patients.Methods Real-time quantitative polymerase chain reaction(PCR)was used to identify M.pneumoniae,and MLVA was performed.The domain V of the 23 S rRNA was sequenced to detect macrolide-resistant point mutations.We also investigated the activities of antibiotics against M.pneumoniae isolates in vitro.Results The PCR detection rate of M.pneumoniae in children in Beijing was 40%,and the macrolide resistance rate was 66%.The A2063 G mutation in the 23 S rRNA V region is the dominant mutation(137/146,93.84%),whereas the A2064 G mutation is rare(9/146,6.16%).Seventy-three samples were typed successfully by MLVA typing,including 86.3%(63/73)were MLVA type 4-5-7-2,and 13.7%(10/73)were MLVA type 3-5-6-2.No other types were found.No strains were resistant to levofloxacin or tetracycline.Conclusion In 2016,a specific decrease in the macrolide resistance rate occurred in Beijing.The detection rate and macrolide resistance rate of outpatients are lower than those of inpatients.The A2063 G mutants M.pneumoniae have high levels of resistance to erythromycin and azithromycin.The primary MLVA type is 4-5-7-2,followed by 3-5-6-2.No other MLVA types were detected.No strains resistant to tetracycline or levofloxacin were found in vitro.DOU Hai Wei TIAN Xiu Jun XIN De Li WEI Ran ZHOU Wei WANG Hong QIN Xuan Guang SHAO Jun Yan XU Bao Ping GE Li Xia SHI Da Wei 2020Biomedical and Environmental Sciences2020,33,12:9
4Nanostructured Bi2S3 encapsulated within three- dimensional N-doped graphene as active and flexible anodes for sodium-ion batteries显示文摘Chen Lu Zhenzhu Li Lianghao Yu Li Zhang Zhou Xia Tao Jiang Wanjian Yin Shixue Dou Zhongfan Liu Jingyu Sun 2018Nano Research2018,11,9:9
5Probing CENP-E function in chromosome dynamics using small molecule inhibitor syntelin显示文摘Xia Ding Feng Yan Phil Yao Zhihong Yang Weihong Wan Xiwei Wang Jing Liu Xinjiao Gao Ariane Abrieu Tongge Zhu Jiancun Zhang Zhen Dou Xuebiao Yao 2010Cell Research2010,20,12:8
6Confining MOF-derived SnSe nanoplatelets in nitrogen-doped graphene cages via direct CVD for durable sodium ion storage显示文摘Tin-based compounds are deemed as suitable anode candidates affording promising sodium-ion storages for rechargeable batteries andhybrid capacitors.However,synergistically tailoring the electrical conductivity and structural stability of tin-based anodes to attain durablesodium-ion storages remains challenging to date for its practical applications.Herein,metal-organic framework(MOF)derived SnSe/C wrappedwithin nitrogen-doped graphene(NG@SnSe/C)is designed targeting durable sodium-ion storage.NG@SnSe/C possesses favorable electricalconductivity and structure stability due to the'inner'carbon framework from the MOF thermal treatment and'outer'graphitic cage from thedirect chemical vapor deposition synthesis.Consequently,NG@SnSe/C electrode can obtain a high reversible capacity of 650 mAh·g^-1 at 0.05 A·g^1,a favorable rate performance of 287.8 mAh·g^1 at 5 A·g^1 and a superior cycle stability with a negligible capacity decay of 0.016%percycle over 3,200 cycles at 0.4 A·g^1.Theoretical calculations reveal that the nitrogen-doping in graphene can stabilize the NG@SnSe/Cstructure and improve the electrical conductivity.The reversible Na-ion storage mechanism of SnSe is further investigated by in-situ X-raydiffraction/ex-s/tu transmission electron microscopy.Furthermore,assembled sodium-ion hybrid capacitor full-cells comprising our NG@SnSe/Canode and an active carbon cathode harvest a high energy/power density of 115.5 Wh·kg^-1/5,742 W·kg^-1,holding promise for next-generationen ergy storages.Chen Lu Zhenzhu Li Zhou Xia Haina Ci Jingsheng Cai Yingze Song Lianghao Yu Wanjian Yin Shixue Dou Jingyu Sun Zhongfan Liu 2019Nano Research2019,12,12:7
7Non-limit passive soil pressure on rigid retaining walls显示文摘This paper aims to reveal the depth distribution law of non-limit passive soil pressure on rigid retaining wall that rotates about the top of the wall(rotation around the top(RT) model). Based on Coulomb theory, the disturbance degree theory, as well as the spring-element model, by setting the rotation angle of the wall as the disturbance parameter, we establish both a depth distribution function for sand and a nonlinear depth distribution calculation method for the non-limit passive soil pressure on a rigid retaining wall under the RT model, which is then compared with experiment. The results suggest that under the RT model: the non-limit soil pressure has a nonlinear distribution; the backfill disturbance degree and the lateral soil pressure increase with an increase in the wall rotation angle; and, the points where the resultant lateral soil pressure acts on the retaining wall are less than 2/3 of the height of the wall. The soil pressure predicted by the theoretical calculation put forward in this paper are quite similar to those obtained by the model experiment, which verifies the theoretical value, and the engineering guidance provided by the calculations are of significance.Dou Guotao Xia Junwu YU Wenjie Yuan Fang Bai Weigang 2017International Journal of Mining Science and Technology2017,27,3:7
8Pseudocapacitive materials for electrochemical capacitors:from rational synthesis to capacitance optimization显示文摘Among various energy-storage devices,electrochemical capacitors(ECs) are prominent power provision but show relatively low energy density.One way to increase the energy density of ECs is to move from carbon-based electric double-layer capacitors to pseudocapacitors,which manifest much higher capacitance.However,compared with carbon materials,the pseudocapacitive electrodes sufer from high resistance for electron and/or ion transfer,signiicantly restricting their capacity,rate capability and cyclability.Rational design of electrode materials ofers opportunities to optimize their electrochemical performance,leading to devices with high energy density while maintaining high power density.his paper reviews the diferent approaches of electrodes striving to advance the energy and power density of ECs.Jie Wang Shengyang Dong Bing Ding Ya Wang Xiaodong Hao Hui Dou Yongyao Xia Xiaogang Zhang 2017National Science Review2017,4,1:7
9Effect of a poloxamer 407-based thermosensitive gel on minimization of thermal injury to diaphragm during microwave ablation of the liver显示文摘AIM To assess the insulating effect of a poloxamer 407(P407)-based gel during microwave ablation of liver adjacent to the diaphragm.METHODS We prepared serial dilutions of P407, and 22.5%(w/w) concentration was identified as suitable for ablation procedures. Subsequently, microwave ablations were performed on the livers of 24 rabbits(gel, saline, control groups, n = 8 in each). The P407 solution and 0.9% normal saline were injected into the potential space between the diaphragm and liver in experimental groups. No barriers were applied to the controls. After microwave ablations, the frequency, size and degree of thermal injury were compared histologically among the three groups. Subsequently, another 8 rabbits were injected with the P407 solution and microwave ablation was performed. The levels of alanine aminotransferase(ALT), aspartate aminotransferase(AST), blood urea nitrogen(BUN) and creatinine(Cr) in serum were tested at 1 d before microwave ablation and 3 and 7 d after operation. RESULTS In vivo ablation thermal injury to the adjacent diaphragm was evaluated in the control, saline and 22.5% P407 gel groups(P = 0.001-0.040). However, there was no significant difference in the volume of ablation zone among the three groups(P > 0.05). Moreover, there were no statistical differences among the preoperative and postoperative gel groups according to the levels of ALT, AST, BUN and Cr in serum(all P > 0.05).CONCLUSION Twenty-two point five percent P407 gel could be a more effective choice during microwave ablation of hepatic tumors adjacent to the diaphragm. Further studies for clinical translation are warranted.Li-Li Zhang Gui-Min Xia Yu-Jiang Liu Rui Dou John Eisenbrey Ji-Bin Liu Xiao-Wei Wang Lin-Xue Qian 2017World Journal of Gastroenterology2017,23,12:6
10The landscape of aging显示文摘Aging is characterized by a progressive deterioration of physiological integrity,leading to impaired functional ability and ultimately increased susceptibility to death.It is a major risk factor for chronic human diseases,including cardiovascular disease,diabetes,neurological degeneration,and cancer.Therefore,the growing emphasis on “healthy aging” raises a series of important questions in life and social sciences.In recent years,there has been unprecedented progress in aging research,particularly the discovery that the rate of aging is at least partly controlled by evolutionarily conserved genetic pathways and biological processes.In an attempt to bring full-fledged understanding to both the aging process and age-associated diseases,we review the descriptive,conceptual,and interventive aspects of the landscape of aging composed of a number of layers at the cellular,tissue,organ,organ system,and organismal levels.Yusheng Cai Wei Song Jiaming Li Ying Jing Chuqian Liang Liyuan Zhang Xia Zhang Wenhui Zhang Beibei Liu Yongpan An Jingyi Li Baixue Tang Siyu Pei Xueying Wu Yuxuan Liu Cheng-Le Zhuang Yilin Ying Xuefeng Dou Yu Chen Fu-Hui Xiao Dingfeng Li Ruici Yang Ya Zhao Yang Wang Lihui Wang Yujing Li Shuai Ma Si Wang Xiaoyuan Song Jie Ren Liang Zhang Jun Wang Weiqi Zhang Zhengwei Xie Jing Qu Jianwei Wang Yichuan Xiao Ye Tian Gelin Wang Ping Hu Jing Ye Yu Sun Zhiyong Mao Qing-Peng Kong Qiang Liu Weiguo Zou Xiao-Li Tian Zhi-Xiong Xiao Yong Liu Jun-Ping Liu Moshi Song Jing-Dong J.Han Guang-Hui Liu 2022Science China(Life Sciences)2022,65,12:4
11Estimating the Health and Economic Outcomes of the Prevention of Mother-to-child Transmission of HIV Using a Decision Tree Model显示文摘In 2016, there were 17.8 million (15.4-20.3 million) women living with HIV/AIDS across the world and the prevalence of reproductive desire among this group was 26%-49%[1]. If pregnant women living with HIV/AIDS are left untreated, the rates of HIV transmission from mother-to-child would range from 14% to 48%, depending on the presence and duration of breastfeeding[2].QU Shui Ling WANG Ai Ling PAN Xiao Ping WANG Qian DOU Li Xia ZHANG Tong 2019Biomedical and Environmental Sciences2019,32,1:4
12Mitotic motor CENP-E cooperates with PRC1 in temporal control of central spindle assembly显示文摘Error-free cell division depends on the accurate assembly of the spindle midzone from dynamic spindle microtubules to ensure chromatid segregation during metaphase-anaphase transition.However,the mechanism underlying the key transition from the mitotic spindle to central spindle before anaphase onset remains elusive.Given the prevalence of chromosome instability phenotype in gastric tumorigenesis,we developed a strategy to model context-dependent cell division using a combination of light sheet microscope and 3D gastric organoids.Light sheet microscopic image analyses of 3D organoids showed that CENP-E inhibited cells undergoing aberrant metaphase-anaphase transition and exhibiting chromosome segregation errors during mitosis.Highresolution real-time imaging analyses of 2D cell culture revealed that CENP-E inhibited cells undergoing central spindle splitting and chromosome instability phenotype.Using biotinylated syntelin as an affinity matrix,we found that CENP-E forms a complex with PRC1 in mitotic cells.Chemical inhibition of CENP-E in metaphase by syntelin prevented accurate central spindle assembly by perturbing temporal assembly of PRC1 to the midzone.Thus,CENP-E-mediated PRC1 assembly to the central spindle constitutes a temporal switch to organize dynamic kinetochore microtubules into stable midzone arrays.These findings reveal a previously uncharacterized role of CENP-E in temporal control of central spindle assembly.Since CENP-E is absent from yeast,we reasoned that metazoans evolved an elaborate central spindle organization machinery to ensure accurate sister chromatid segregation during anaphase and cytokinesis.Xu Liu Leilei Xu Junying Li Phil Y.Yao Wanjuan Wang Hazrat Ismail Haowei Wang Bryce Liao Zhihong Yang Tarsha Ward Ke Ruan Jianchun Zhang Quan Wu Ping He Xia Ding Dongmei Wang Chuanhai Fu Zhen Dou Feng Yan Wenwen Wang Xing Liu Xuebiao Yao 2020Journal of Molecular Cell Biology2020,12,8:3
13Epidemiological and clinical characteristics of COVID-19 patients in Hengyang,Hunan Province,China显示文摘BACKGROUND In December 2019,an ongoing outbreak of coronavirus disease 2019(COVID-19)was first identified in Wuhan,China.The characteristics of COVID-19 patients treated in local hospitals in Wuhan are not fully representative of patients outside Wuhan.Therefore,it is highly essential to analyze the epidemiological and clinical characteristics of COVID-19 in areas outside Wuhan or Hubei Province.To date,a limited number of studies have concentrated on the epidemiological and clinical characteristics of COVID-19 patients with different genders,clinical classification,and with or without basic diseases.AIM To study the epidemiological and clinical characteristics of COVID-19 patients in Hengyang(China)and provide a reliable reference for the prevention and control of COVID-19.METHODS From January 16 to March 2,2020,a total of 48 confirmed cases of COVID-19 were reported in Hengyang,and those cases were included in this study.The diagnostic criteria,clinical classification,and discharge standard related to COVID-19 were in line with the Diagnosis and Treatment Protocol for Novel Coronavirus Pneumonia(Trial Version 7)released by National Health Commission and National Administration of Traditional Chinese Medicine.The presence of SARS-CoV-2 in pharyngeal swab specimens was detected by quantitative reverse transcription polymerase chain reaction.All the data were imported into the excel worksheet and statistically analyzed by using SPSS 25.0 software.RESULTS A total of 48 cases of COVID-19 were collected,of which 1 was mild,38 were moderate,and 9 were severe.It was unveiled that there were 31(64.6%)male patients and 17(35.4%)female patients,with a female-to-male ratio of 1.82:1.The range of age of patients with COVID-19 was dominantly 30-49 years old[25(52.1%)of 48],followed by those aged over 60 years old[11(22.9%)].Besides,29.2%(14 of 48)of patients had basic diseases,and 57.2%(8 of 14)of patients with basic diseases were aged over 60 years old.The occupations of 48 COVID-19 patients were mainly farmers working in agricultural production[15(31.5%)of 48],rural migrant workers from Hengyang to Wuhan[15(31.5%)],and service workers operating in the service sector[8(16.7%)].The mean latent period was 6.86±3.57 d,and the median was 7[interquartile range(IQR):4-9]d.The mean time from onset of symptoms to the first physician visit was 3.38±2.98(95%CI:2.58-9.18)d,with a median of 2(IQR:1-5)d,and the mean time from hospital admission to confirmed diagnosis was 2.29±2.11(95%CI:1.18-6.42)d,with a median of 2(IQR:1-3)d.The main symptoms were fever[43(89.6%)of 48],cough and expectoration[41(85.4%)],fatigue[22(45.8%)],and chills[22(45.8%)].Other symptoms included poor appetite[13(27.1%)],sore throat[9(18.8%)],dyspnea[9(18.8%)],diarrhea[7(14.6%)],dizziness[5(10.4%)],headache[5(10.4%)],muscle pain[5(10.4%)],nausea and vomiting[4(8.3%)],hemoptysis[4(8.3%)],and runny nose[1(2.1%)].The numbers of peripheral blood leukocytes,lymphocytes,and eosinophils were significantly reduced in the majority of the patients.The levels of C-reactive protein,fibrinogen,blood glucose,lactate dehydrogenase,Ddimer,alanine aminotransferase(ALT),aspartate aminotransferase(AST),gamma-glutamyl transferase(γ-GT),myoglobin(MB),and creatine kinase(CK)were increased in 64.6%,44.7%,43.2%,37.0%,29.5%,22.9%,20.8%,21.6%,13.6%,and 12.8%of patients,respectively.The incidence of ALT elevation in male patients was remarkably higher than that in females(P<0.01),while the incidences of AST,CK,and blood glucose elevations in severe patients were remarkably higher than those in moderate patients(P<0.05,respectively).Except for the mild patients,chest computed tomography showed characteristic pulmonary lesions.All the patients received antiviral drugs,38(79.2%)accepted traditional Chinese medicine,and 2(4.2%)received treatment of human umbilical-cord mesenchymal stem cells.On March 2,2020,48 patients with COVID-19 were all cured and discharged.CONCLUSION Based on our results,patients with COVID-19 often have multiple organ dysfunction or damage.The incidences of ALT elevation in males,and AST,CK,and blood glucose elevations in severe patients are remarkably higher.Zhe-Feng Zhong Jia Huang Xia Yang Jin-Ling Peng Xiao-Yan Zhang Yang Hu Nian Fu Hai-Lian Lin Bo Jiang Ya-Ying Tian Hong-Yi Yao Li-Pu Deng Xiao-Qing Tang Jie-Can Zhou Jian Tang Xia Xie Qiong Liu Jing Liu Cheng-Yun Dou Rong-Juan Dai Bo Yan Xue-Feng Yang 2020World Journal of Clinical Cases2020,8,12:3
14Scenario-based modeling and solving research on robust weapon project planning problems显示文摘Weapon project planning(WPP) plays a critical role in the process of national defense development and establishment of the future national defense force. WPP faces the backgrounds of various uncertainties, intense inter-influence of weapon systems and involves modelling, assessment, and optimization procedures.The contents of this paper are mainly divided into three parts: first,the WPP processes are analyzed, and related elements are formulated to transform the qualitative problem to mathematics form;second, the value evaluation model of WPP solutions is proposed based on two criteria of total capability gap and total capability dispersion; third, two robustness optimization models are constructed based on the absolute robustness criterion and the robustness deviation criterion to support the robustness optimization process under multi-scenario. Finally, a case is studied to examine the feasibility and effectiveness of the proposed models and approaches.XIA Boyuan ZHAO Qingsong YANG Kewei DOU Yajie YANG Zhiwei 2019Journal of Systems Engineering and Electronics2019,30,1:3
15A novel positively thermo-sensitive hydrogel based on ethylenediaminetetraacetic dianhydride and piperazine:Design,synthesis and characterization显示文摘新确实 thermo 敏感的 hydrogel 被设计并且由 ethylenediaminetetraacetic dianhydride (EDTAD ) 和 piperazine (PA ) 的冷凝作用聚合反应综合了 poly 给(ethylenediaminetetraacetic dianhydride-co-piperazine )( 锐气) 。获得的聚合物结构被 FTIR 和 13C NMR 描绘。聚合物的脊梁由酰胺债券连接了,导致有 thermo 敏感的聚合物并且悬挂的组能形成的 carboxyl 组丰富强壮分子间并且 intramolecular 氢债券在降低温度并且在更高的温度分裂。在更低的温度的锐气的水的答案(<Jiao Xia Sun Yuan Liang Wang Shu Hua Dou 2012Chinese Chemical Letters2012,23,1:2
16Detection of an anti-angina therapeutic module in the effective population treated by a multi-target drug Danhong injection:a randomized trial显示文摘It's a challenge for detecting the therapeutic targets of a polypharmacological drug from variations in the responsed networks in thedfferentiated populations with complex diseases,as stable coronary heart disease.Here,in an adaptive,31-center,randomized,double-blind trial invoving 920 patients with moderate symptomatic stable angina treated by 14-day Danhong injection(DHI),a kind of polyphamacological drug with high quality control,or placebo(0.9%saline),with 76-day following-up,we firstly confrmed that DHl couldincrease the proportion of patients with clinically significant changes on angina-frequency assessed by Seattle Angina Questionnaire(ASAQ-AF220)(12.78%at Day 30,95%confidence interval[C]5.86-19.71%,P=0.0003,13.82%at Day 6C0,95%CI 6.82-20.82%,P=0.0001and 8.95%at Day 90,95%CI 2.06-15.85%,P=0.01).We also found that there were no significant differences in new-onset major vascularevents(P=0.8502)and serious adverse events(P=0.9105)between DHl and placebo.After performing the RNA sequencing in 62 selectedpatients,we developed a systemic modular approach tp identfy differentilly expressed modules(DEMs)of DHI with the Z_(summay)valueless than 0 compared with the control group,calculated by weighted gene co-expression network analysis(WGCNA),and sketched out thebasic framework on a modular map with 25 functional modules targeted by DII.Furthermore,the effective therapeutic module(ETM),defined as the highest corelation value with the phenotype alteration(SAQ-AF,the change in SAQ-AF at Day 30 from baseline)calculatedby WGCNA,was identifed in the population with the best effect(ASAQ-AF240),which is related to anticoagulation and regulation ofcholesterol metabolism.We assessed the modular flexbility of this ETM using the global topological D value based on Euclidean distance,which is corelated with phenotype alteration(r^(2):0.8204,P=0.019)by linear regression.Our study identified the ant-angina therapeuticmodule in the effective population treated by the multi-target drug.Modular methods facilitate the discovery of network pharmacologicalmechanisms and the advancement of precision medicine.(ClinicalTrials.gov identifier:NCTO1681316).Jun Liu Dan-Dan Li Wei Dong Yu-Qi Liu Yang Wu Da-Xuan Tang Fu-Chun Zhang Meng Qiu Qi Hua Jing-Yu He Jun Li Bai Du Ting-Hai Du Lin-Lin Niu Xue-Jun Jiang Bo Cui Jiang-Bin Chen Yang-Gan Wang Hai-Rong Wang Qin Yu Jing He Yi-Lin Mao Xiao-Fang Bin Yue Deng Yu-Dan Tian Qing-Hua Han Da-Jin Liu Li-Qin Duan Ming-Jun Zhao Cui-Ying Zhang Hai-Ying Dai Ze-Hua Li Ying Xiao You-Zhi Hu Xiao-Yu Huang Kun Xing Xin Jiang Chao-Feng Liu Jing An Feng-Chun Li Tao Tao Jin-Fa Jiang Ying Yang Yao-Rong Dong Lei Zhang Guang Fu Ying Li Shu-Wei Huang Li-Ping Dou Lan-Jun Sun Ying-Qiang Zhao Jie Li Yun Xia Jun Liu Fan Liu Wen-Jin He Ying Li Jian-Cong Tan Yang Lin Ya-Bin Zhou Jian-Fei Yang Guo-Qing Ma Hui-Jun Chen He-Ping Liu Zong-Wu Liu Jian-Xiong Liu Xiao-Jia Luo Xiao-Hong Bin Ya-Nan Yu Hai-Xia Dang Bing Li Fei Teng Wang-Min Qiao Xiao-Long Zhu Bing-Wei Chen Qi-Guang Chen Chun-Ti Shen Yong-Yan Wang Yun-Dai Chen Zhong Wang 2021Signal Transduction and Targeted Therapy2021,6,10:2
17Predictive control for mechanical system with backlash based on hybrid model显示文摘The mechanical system with backlash is distinguished between a'backlash mode'and a'contact mode'.The inherent switching between the two operating modes makes the system a prime example of hybrid system.For eliminating the bad effect of backlash, a piecewise affine(PWA) model of the mechanical servo system with backlash is built.The optimal control of constrained PWA system is obtained by taking advantage of model predictive control(MPC) method, and the explicit solution of MPC in a look-up table form is figured out by combining the dynamic programming and multi-parametric quadratic programming, thereby establishing an explicit hybrid model predictive controller.Furthermore, a piecewise quadratic(PWQ) function for guaranteeing the stability of closed-loop control is found by formulating the search of PWQ function as a semi-definite programming problem.In the tracking experiments, it is demonstrated that the explicit hybrid model predictive controller has a good traction control effect on the mechanical system with backlash.The error meets the demands of real system.Further, compared to the direct on-line computation, the computation burden is reduced by the explicit solution, thereby being suitable for real-time control of system with short sampling time.Dou Lihua Dong Lingxun Chen Jie Xia Yuanqing 2009Journal of Systems Engineering and Electronics2009,20,6:2
18Stable confinement of Fe/Fe_(3)C in Fe,N-codoped carbon nanotube towards robust zinc-air batteries显示文摘Catalytic oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)have garnered great attention as the key character in metal-air batteries.Herein,we developed a superior nonprecious bifunctional oxygen electrocatalyst,fabricated through spatial confinement of Fe/Fe_(3)C nanocrystals in pyridinic N and Fe-Nx rich carbon nanotubes(Fe/Fe_(3)C-N-CNTs).During ORR,the resultant electrocatalyst exhibits positive onset pote ntial of 1.0 V(vs.RHE),large half-wave potentials of 0.88 V(vs.RHE),which is more positive than Pt/C(0.98 V and 0.83 V,respectively).Remarkably,Fe/Fe_(3)C-N-CNTs exhibits outstanding durability and great methanol tolerance,exceeding Pt/C and most reported nonprecious metal-based oxygen reduction electrocatalysts.Moreover,Fe/Fe_(3)C-N-CNTs show a markedly low potential at j=10 mA/cm^(2),small Tafel slopes and extremely high stability for OER.Impressively,the Fe/Fe_(3)C-N-CNTs-based Zn-air batteries demonstrate high power density of 183 mW/cm^(2)and robust charge/discharge stability.It is revealed that the spatial confinement effect can impede the aggregation and corrosion of Fe/Fe_(3)C nanocrystals.Meanwhile,Fe/Fe_(3)C and Fe-Nx play synergistic effect on boosting the ORR/OER activity,which provides an important guideline for construction of inexpensive nonprecious metal-carbon hybrid nanomaterials.Lingbo Zong Xin Chen Shuming Dou Kaicai Fan Zumin Wang Wenjun Zhang Yunmei Du Jie Xu Xiaofei Jia Qi Zhang Xia Li Yida Deng Yanan Chen Lei Wang 2021Chinese Chemical Letters2021,32,3:2
19Dynamic regulation of innate lymphoid cells in the mucosal immune system显示文摘The mucosal immune system is considered a local immune system,a term that implies regional restriction.Mucosal tissues are continually exposed to a wide range of antigens.The regulation of mucosal immune cells is tightly associated with the progression of mucosal diseases.Innate lymphoid cells(ILCs)are abundant in mucosal barriers and serve as first-line defenses against pathogens.The subtype changes and translocation of ILCs are accompanied by the pathologic processes of mucosal diseases.Here,we review the plasticity and circulation of ILCs in the mucosal immune system under physiological and pathological conditions.We also discuss the signaling pathways involved in dynamic ILC changes and the related targets in mucosal diseases.Fei Shao Dou Yu Pengyan Xia Shuo Wang 2021Cellular & Molecular Immunology2021,18,6:2
20Management Algorithm for Prevention of Mother-to-child Transmission of Hepatitis B Virus(2022)显示文摘The World Health Organization(WHO)has set the goal of eliminating hepatitis as a threat to public health by 2030.Blocking mother-to-child transmission(MTCT)of hepatitis B virus(HBV)is not only the key to eliminating viral hepatitis,but also a hot issue in the field of hepatitis B prevention and treatment.To standardize the clinical management of preventing MTCT of HBV and achieve zero HBV infection among infants,the Chinese Foundation for Hepatitis Prevention and Control organized experts to compile a management algorithm for prevention of MTCT of HBV based on the latest research progress and guidelines,including 10 steps of pregnancy management and postpartum follow-up,among which screening,antiviral treatment,and infant immunization are its core components.Zhihua Liu Zhongdan Chen Fuqiang Cui Yang Ding Yunfei Gao Guorong Han Jidong Jia Jie Li Zengde Li Yingxia Liu Qing Mao Ailing Wang Wei Wang Lai Wei Jianhong Xia Qing Xie Xizhong Yang Xueru Yin Hua Zhang Liaoyun Zhang Wenhong Zhang Hui Zhuang Xiaoguang Dou Jinlin Hou 2022Journal of Clinical and Translational Hepatology2022,10,5:2
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