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| 1 | Current status of diagnosis and treatment of bladder cancer in China-Analyses of Chinese Bladder Cancer Consortium database显示文摘Objective:To investigate current status of diagnosis and treatment of bladder cancer in China.Methods:A database was generated by Chinese Bladder Cancer Consortium(CBCC).From January 2007 to December 2012,14,260 cases from 44 CBCC centers were included.Data of diagnosis,treatment and pathology were collected.Results:The average age was 63.5 year-old and most patients were male(84.3%).The most common histologic types were urothelial carcinoma(91.4%),adenocarcinoma(1.8%),and squamous carcinoma(1.9%).According to 1973 and 2004 WHO grading system,42.0%,41.0%,and 17.0% of patients were grade 1,2,and 3,and 16.0%,48.7%,and 35.3% of patients were papillary urothelial neoplasms of low malignant potential,low,and high grade,respectively.Non-muscle invasive bladder cancer(NMIBC)and muscle invasive bladder cancer(MIBC)were 25.2% and 74.1%,respectively(0.8% not clear).Carcinoma in situ was only 2.4%.Most patients were diagnosed by white-light cystoscopy with biopsy(74.3%).Fluorescence and narrow band imaging cystoscopy had additional detection rate of 1.0% and 4.0%,respectively.Diagnostic transurethral resection(TUR)provided detection rate of 16.9%.Most NMIBCs were treated with TUR(89.2%).After initial TUR,2.6%accepted second TUR,and 45.7%,69.9%,and 58.7% accepted immediate,induced,and maintenance chemotherapy instillation,respectively.Most MIBCs were treated with radical cystectomy(RC,59.7%).Laparoscopic RCs were 35.1%,while open RC 63.4%.Extended and standard pelvic lymph node dissection were 7% and 66%,respectively.Three most common urinary diversions were orthotopic neobladder(44%),ileal conduit(31%),and ureterocutaneostomy(23%).Only 2.3% of patients accepted neo-adjuvant chemotherapy and only 18%of T3 and T4 patients accepted adjuvant chemotherapy.Conclusion:Disease characteristics are similar to international reports,while differences of diagnosis and treatment exist.This study can provide evidences for revisions of the guideline on bladder cancer in China. | Kaiwen Li Tianxin Lin 无 Wei Xue Xin Mu Enci Xu Xu Yang Fubao Chen Guangyong Li Lulin Ma Guoliang Wang Chaozhao Liang Haoqiang Shi Ming Li Mao Tang Xueyi Xue Yisong Lv Yaoliang Deng Chengyang Li Zhiwen Chen Xiaozhou Zhou Fengshuo Jin Xudong Liu Jinxin Wei Lei Shi Xin Gou Weiyang He Liqun Zhou Lin Cai Baiye Jin Guanghou Fu Xiangbo Kong Hongyan Sun Ye Tian Lang Feng Tiejun Pan Yiyi Wu Dongwen Wang Hailong Hao Benkang Shi Yaofeng Zhu Qiang Wei Ping Han Changli Wu Dawei Tian Zhangqun Ye Zheng Liu Zhiping Wang Junqiang Tian Lin Qi Minfeng Chen Wei Li Jinchun Qi Gongxian Wang Longlong Fu Zhaolin Sun Guangheng Luo Zhoujun Shen Zhaowei Zhu Jinchun Xing Zhun Wu Dong Wei Xin Chen Yanqun Na Hongfeng Guo Chunxi Wang Zhihua Lu Chuize Kong Yang Liu Jin Yang Jianyun Hu Xin Gao Jielin Li Changjun Yin Pu Li Shan Chen Zhen Du Jiongming Li Yongji Yan Xu Zhang Shuang Huang Fangjian Zhou Zhiling Zhang Yinghao Sun Shuxiong Zeng Song Cen Jiaquan Zhou Hanzhong Li Jin Wen Jian Huang | 2015 | Asian Journal of Urology2015，2，2： | 21 |
| 2 | Ubi1 intron-mediated enhancement of the expression of Bt cry1Ah gene in transgenic maize (Zea mays L.)显示文摘The cry1Ah gene was one of novel insecticidal genes cloned from Bacillus thuringiensis isolate BT8. Two plant expression vectors containing cry1Ah gene were constructed. The first intron of maize ubiqutin1 gene was inserted between the maize Ubiquitin promoter and cry1Ah gene in one of the plant expressing vectors (pUUOAH). The two vectors were introduced into maize immature embryonic calli by microprojectile bombardment, and the reproductively plants were acquired. PCR and Southern blot analysis showed that foreign genes had been integrated into maize genome and inherited to the next generation stably. The ELISA assay to T1 and T2 generation plants showed that the expression of Cry1Ah protein in the construct containing the ubi1 intron (pUUOAH) was 20% higher than that of the intronless construct (pUOAH). Bioassay results showed that the transgenic maize harboring cry1Ah gene had high resistance to the Asian corn borers and the insecticidal activity of the transgenic maize containing the ubi1 intron was higher than that of the intronless construct. These results indicated that the maize ubi1 intron can enhance the expression of the Bt cry1Ah gene in transgenic maize | WANG YueBing LANG Zhihong ZHANG Jie HE KangLai SONG FuPing HUANG DaFang | 2008 | Chinese Science Bulletin2008，53，20： | 15 |
| 3 | Performance of Multiple Risk Assessment Tools to Predict Mortality for Adult Respiratory Distress Syndrome with Extracorporeal Membrane Oxygenation Therapy: An External Validation Study Based on Chinese Single-center Data显示文摘 | Lei Huang Tong Li Lei Xu Xiao-Min Hu Da-Wei Duan Zhi-Bo Li Xin-Jing Gao Jun Li Peng Wu Ying-Wu Liu Song Wang Yu-Heng Lang | 2016 | Chinese Medical Journal2016，，14： | 13 |
| 4 | Proportion of Uterine Malignant Tumors in Patients with Laparoscopic Myomectomy: A National Multicenter Study in China显示文摘 | Hua Yang Xiao-Chuan Li Chen Yao Jing-He Lang Hang-Mei Jin Ming-Rong Xi Gang Wang Lu-Wen Wang Min Hao Yan Ding Jie Chen Jian-Qing Zhang Lu Han Cheng-Xiu Guo Xiang Xue Yan Li Jian-Hua Zheng Man-Hua Cui Huai-Fang Li Guang-Shi Tao Long Chen Su-Min Wang An-Wei LU Ze-Hua Huang Qing Liu Ya-Li Zhuang Xiang-Hua Huang Gen-Hai Zhu Ou-Ping Huang Li-Na Hu Mu-Jun Li Hong-Lin Zhou Jing-Hui Song Lan Zhu | 2017 | Chinese Medical Journal2017，，22： | 10 |
| 5 | Changes in palaeoproductivity of Genggahai Lake over the past 16 ka in the Gonghe Basin,northeastern Qinghai-Tibetan Plateau显示文摘Sequential samples of a 7.82-m sediment core from Genggahai Lake in the central Gonghe Basin,controlled with 12 accelerator mass spectrometry (AMS) 14 C dates,have been analysed for total organic carbon (TOC) and total nitrogen (TN) contents,carbon isotope of bulk organic matter (δ 13 C org),and carbonate content.Plant macrofossils and stem encrustations,derived mainly from the species of P.pectinatus,M.spicatum and Chara spp.,were identified,and they dominated the aquatic plant community of the lake.Alternations of plant macrofossils of Chara spp.and the vascular species reflect the changing productivity of the lake over time.In such a shallow lake,the carbonate content is highly related to photosynthesis of aquatic macrophytes and thus indirectly indicates variations in productivity,consistent with a quantitative estimate of palaeoproductivity.Based on these results,the palaeoproductivity history was reconstructed over the past ca.16 ka.The lake was formed or recharged at 15.3 cal ka BP,as indicated by aeolian sand deposits at the core base.A marked increase in palaeoproductivity occurred from 15.3 to 11.6 cal ka BP.Between 11.6 and 9.2 cal ka BP,a sharply increased water-level,modulated probably by the enhanced Asian summer monsoon,might have exceeded the optimum water depth for macrophyte vegetation,causing a marked decline in coverage of aquatic macrophytes and low palaeoproductivity.The palaeoproductivity appeared to be high in the early stage of the period from 9.2 to 7.4 cal ka BP,and then decreased at approximately 8.6 cal ka BP.The palaeoproductivity sustained an overall high level between 7.4 and 2.1 cal ka BP,and decreased gradually since 2.1 cal ka BP.Our results suggest that the variability of Genggahai Lake palaeoproductivity may be associated with fluctuations of the lake level controlled by the strength of the Asian summer monsoon,probably indicating changes in the Asian summer monsoon. | SONG Lei QIANG MingRui LANG LiLi LIU XingXing WANG Qin LI MingZhi | 2012 | Chinese Science Bulletin2012，57，20： | 9 |
| 6 | A novel impedance immunosensor based on O-phenylenediamine modified gold electrode to analyze abscisic acid显示文摘An impedance immunosensor based on O-phenylenediamine modified gold electrode for the determination of phytohormone abscisic acid(ABA) was proposed.The operating pH,absorption time,absorption temperature and concentration of anti-ABA antibody were investigated to optimize the analytical performance.The calibration curve for the determination of ABA was obtained from this impedance immunosensor under optimal conditions.The results showed that the detection limit at about 1 ng/mL in the range of 10-5000 ng... | Li, Qian Wang, Ruo Zhong Huang, Zhi Gang Li, He Song Xiao, Lang Tao | 2010 | Chinese Chemical Letters2010，21，4： | 7 |
| 7 | Altered expression of mitochondrial related genes in the native Tibetan placents by mitochondrial cDNA array analysis显示文摘Objective: To explore the mechanism of native Tibetan fetuses adaptation to hypoxia, we tried to find the different expression genes about mitochondrial function in the native Tibetan placents. Methods: In this study, the placents of native Tibetan and the high-altitude Han (ha-Han) were collected. After the total RNA extraction, the finally synthesized cDNAs were hybridized to mitochondrial array to find the altered expression genes between them. Then, the cytochrome c oxidase 17 (Cox17), dynactin 2 (DCTN2, also known as p50), and vascular endothelial growth factor receptor (VEGFR, also known as KDR) were chosen from the altered expression genes to further verify the array results using the SYBR Green real-time PCR. Because the altered expression genes (such as Cybb and Cox17) in the array results related to the activities of COXI and COXIV, the placental mitochondria activities of COXI and COXIV were measured to find their changes in the hypoxia. Results: By a standard of ≥1.5 or ≤0.67, there were 24 different expressed genes between the native Tibetan and the ha-Han placents, including 3 up-regulated genes and 21 down-regulated genes. These genes were related to energy metabolism, signal transduction, cell proliferation, electron transport, cell adhesion, nucleotide-excision repair. The array results of Cox17, DCTN2 and KDR were further verified by the real-time RT-PCR. Through the mitochondria respiration measurements, the activity of COXI in the native Tibetan placents were higher than that of ha-Han, there was no difference in COXIV activity between them. Conclusion: The altered mitochondrial related genes in the native Tibetan placents may have a role in the high altitude adaptation for fetuses through changing the activity of mitochondrial COX. | Luo Yongjun Gao Wenxiang Zhao Xiuxin SUO Lang Chen Li Liu Fuyu Song Tonglin Chen Jian Gao Yuqi | 2009 | Journal of Medical Colleges of PLA(China)2009，24，1： | 7 |
| 8 | A 14-year multi-institutional collaborative study of Chinese pelvic floor surgical procedures related to pelvic organ prolapse显示文摘Background:It has been a global trend that increasing complications related to pelvic floor surgeries have been reported over time.The current study aimed to outline the development of Chinese pelvic floor surgeries related to pelvic organ prolapse(POP)over the past 14 years and investigate the potential influence of enhanced monitoring conducted by the Chinese Association of Urogynecology since 2011.Methods:A total of 44,594 women with POP who underwent pelvic floor surgeries between October 1,2004 and September 30,2018 were included from 22 tertiary academic medical centers.The data were reported voluntarily and obtained from a database.We compared the proportion of each procedure in the 7 years before and 7 years after September 30,2011.The data were analyzed by performing Z test(one-sided).Results:The number of different procedures during October 1,2011-September 30,2018 was more than twice that during October 1,2004-September 30,2011.Regarding pelvic floor surgeries related to POP,the rate of synthetic mesh procedures increased from 38.1%(5298/13,906)during October 1,2004-September 30,2011 to 46.0%(14,107/30,688)during October 1,2011-September 30,2018,whereas the rate of non-mesh procedures decreased from 61.9%(8608/13,906)to 54.0%(16,581/30,688)(Z=15.53,P<0.001).Regarding synthetic mesh surgeries related to POP,the rates of transvaginal placement of surgical mesh(TVM)procedures decreased from 94.1%(4983/5298)to 82.2%(11,603/14,107)(Z=20.79,P<0.001),but the rate of laparoscopic sacrocolpopexy(LSC)procedures increased from 5.9%(315/5298)to 17.8%(2504/14,107).Conclusions:The rate of synthetic mesh procedures increased while that of non-mesh procedures decreased significantly.The rate of TVM procedures decreased while the rate of LSC procedures increased significantly.Trial registration number:NCT03620565,https://register.clinicaltrials.gov. | Zhi-Jing Sun Xiu-Qi Wang Jing-He Lang Tao Xu Yong-Xian Lu Ke-Qin Hua Jin-Song Han Huai-Fang Li Xiao-Wen Tong Ping Wang Jian-Liu Wang Xin Yang Xiang-Hua Huang Pei-Shu Liu Yan-Feng Song Hang-Mei Jin Jing-Yan Xie Lu-Wen Wang Qing-Kai Wu Jian Gong Yan Wang Li-Qun Wang Zhao-Ai Li Hui-Cheng Xu Zhi-Jun Xia Li-Na Gu Qing Liu Lan Zhu | 2021 | Chinese Medical Journal2021，，2： | 7 |
| 9 | On-board measurements of gaseous pollutant emission characteristics under real driving conditions from light-duty diesel vehicles in Chinese cities显示文摘A total of 15 light-duty diesel vehicles(LDDVs) were tested with the goal of understanding the emission factors of real-world vehicles by conducting on-board emission measurements. The emission characteristics of hydrocarbons(HC) and nitrogen oxides(NOx) at different speeds, chemical species profiles and ozone formation potential(OFP) of volatile organic compounds(VOCs) emitted from diesel vehicles with different emission standards were analyzed. The results demonstrated that emission reductions of HC and NOxhad been achieved as the control technology became more rigorous from Stage I to Stage IV. It was also found that the HC and NOxemissions and percentage of O2 dropped with the increase of speed, while the percentage of CO2 increased. The abundance of alkanes was significantly higher in diesel vehicle emissions, approximately accounting for 41.1%–45.2%, followed by aromatics and alkenes. The most abundant species were propene,ethane, n-decane, n-undecane, and n-dodecane. The maximum incremental reactivity(MIR)method was adopted to evaluate the contributions of individual VOCs to OFP. The results indicated that the largest contributors to O3 production were alkenes and aromatics, which accounted for 87.7%–91.5%. Propene, ethene, 1,2,4-trimethylbenzene, 1-butene, and1,2,3-trimethylbenzene were the top five VOC species based on their OFP, and accounted for 54.0%-64.8% of the total OFP. The threshold dilution factor was applied to analyze the possibility of VOC stench pollution. The majority of stench components emitted from vehicle exhaust were aromatics, especially p-diethylbenzene, propylbenzene, m-ethyltoluene, and p-ethyltoluene. | Gang Wang Shuiyuan Cheng Jianlei Lang Song Li Liang Tian | 2016 | Journal of Environmental Sciences2016，28，8： | 6 |
| 10 | A Foodborne Bongkrekic Acid Poisoning Incident--Heilongjiang Province,2020显示文摘What is already known on this topic?Poisoning incidents caused by bongkrekic acid(BA),one of the metabolites of Burkholderia gladioli pathovar cocovenenans(B.cocovenenans),have been reported in Indonesia,Mozambique,and China.The reported case fatality rates averaged 60%,32%,and 26.5%,respectively.In China,B.cocovenenans is often called Pseudomonas cocovenenans subsp.farinofermentans.What is added by this report?In October 2020,9 persons in Jidong County,Heilongjiang Province died after consuming a homemade fermented corn flour product—sour soup—with a case fatality rate of 100%.BA was detected in both food samples and biological samples with a content of 330 mg/kg and 3 mg/L,respectively.The doses of BA consumed by the cases were approximately 22-33 times the lethal dose in human.What are the implications for public health practice?The consumption of fermented corn flour products,deteriorated fresh tremella,or black fungus and metamorphic starch products may cause BA poisoning.Health education should be strengthened so that homemade-starch-fermented food should be avoided and foods that have been kept for a long time should not be consumed.Meanwhile,training and emergency capacity building for primary healthcare workers should be strengthened to provide timely diagnosis and response. | Yuan Yuan Rui Gao Qiang Liang Li Song Jun Huang Nan Lang Jing Zhou | 2020 | China CDC weekly2020，2，51： | 5 |
| 11 | The Influence of Bt-Transgenic Maize Pollen on the Bacterial Diversity in the Midgut of Chinese Honeybees, Apis cerana cerana显示文摘Using culture-independent technique polymerase chain reaction-denaturing gradient gel electrophoresis (PCR-DGGE) and conventional culture techniques, ecological risk of transgenic maize pollen on gut bacteria of the Chinese honeybee, Apis cerana cerana, was assessed. Honeybees were fed with Bt-transgenic maize pollen, non-transgenic near isoline pollen, linear cry1Ah gene (800 ng mL-1) and supercoiled plasmid DNA (800 ng mL-1) under laboratory conditions. The DGGE profile showed that the number of DGGE bands varied from 10.7 to 14.7 per sample, and the Shannon's index ranged from 0.85 to 1.00. The similarity calculated by PAST was mostly above 92%, indicating no obvious changes among treatments or within replicates. 14 bacterial strains affiliated with Alphaproteobacteria, Gammaproteobacteria, Firmicutes, and Actinobacteria were isolated and characterized on media under aerobic and anaerobic conditions. These results demonstrated that transgenic cry1Ah maize pollen did not induce significant changes of the honeybee gut bacterial community composition under laboratory conditions. | JIANG Wei-yu GENG Li-li DAI Ping-li LANG Zhi-hong SHU Chang-long LIN Yi ZHOU Ting SONG Fu-ping ZHANG Jie | 2013 | Journal of Integrative Agriculture2013，12，3： | 5 |
| 12 | Congenital quadricuspid aortic valve: analysis of 11 surgical cases显示文摘大动脉的阀门是的背景先天的 quadricuspid 很少在大动脉的阀门代替( AVR )期间看到疾病的 .The 诊断和治疗在 11 cases.Methods 被报导十一个病人(九个男人和二个女人,意味着年龄 33.4 年)与大动脉的阀门是的 quadricuspid ,回顾地, evaluated.Medical 记录, echocardiograms 和外科的治疗是根据 Hurwitz 和 Roberts 分类的 reviewed.Results ,病人作为类型 A ( n=2 )被分类,类型 B ( n=7 ),类型 F ( n=1 ) | TANG Yang-feng XU Ji-bin HAN Lin LU Fang-lin LANG Xi-long SONG Zhi-gang XU Zhi-yun | 2011 | Chinese Medical Journal2011，，17： | 3 |
| 13 | Therapeutic effects of low-frequency phonophoresis with a Chinese herbal medicine versus sodium diclofenac for treatment of knee osteoarthritis: a double-blind, randomized, placebo-controlled clinical trial显示文摘OBJECTIVE: To evaluate the therapeutic effects of low-frequency phonophoresis with a Chinese herbal medicine(CHM) compared with sodium diclofenac(SD) for knee osteoarthritis(KOA).METHODS: In this double-blind, randomized, placebo-controlled trial, 100 KOA patients were assigned randomly to a placebo group, a CHM group,or SD group. Low-frequency phonophoresis was used to improve the efficiency of drug delivery.Pain at rest [using a visual analog scale(VAS)], pain on movement(VAS), and range of motion(degrees) in the three groups were evaluated using the Western Ontario and Mc Master Universities Osteoarthritis Index(WOMACAI) scores. Safety assessments comprised emergency adverse events, aswell as laboratory tests of blood biochemistry, creatinine, blood urea nitrogen, alanine aminotransferase and aspartate aminotransferase.RESULTS: Significant improvements were found after treatment in all outcome measures except stiffness and range of motion in patients in the CHMP group and SDP group(P < 0.05). No significant differences in all outcome measures were found between the CHMP group and SDP group.CONCLUSION: CHMP and SDP can show good therapeutic effects for KOA in terms of relieving pain and improving physical function. | Zhao Jun Wang Qingfu Wu Ji Shi Xinchao Qi Qingxue Zheng Haoyun Lang Song Yang Lili Zhang Dong | 2016 | Journal of Traditional Chinese Medicine2016，36，5： | 3 |
| 14 | Meridional ITCZ shifts modulate tropical/subtropical Asian monsoon rainfall显示文摘The temperature gradient between the northern and southern hemispheres and its influence on the global atmospheric circulations are frontier topics in international climate/paleoclimate studies.Over the past approximately two decades,an important hypothesis in the field of global climate change is that the changes of the Atlantic meridional overturning circulation lead to changes in the temperature gradients between the northern and southern hemisp heres,which affect the mean zonal locations of the Intertropical Convergence Zone(ITCZ)。 | Hai Xu Yunping Song Yonaton Goldsmith Yunchao Lang | 2019 | Science Bulletin2019，64，23： | 3 |
| 15 | Effect of concentration of cadmium sulfate solution on structural,optical and electric properties of Cd_(1-x)Zn_(x)S thin films显示文摘Cd_(1-x)Zn_(x)S thin films were deposited by chemical bath deposition(CBD)on the glass substrate to study the influence of cadmium sulfate concentration on the structural characteristics of the thin film.The SEM results show that the thin film surfaces under the cadmium sulfate concentration of 0.005 M exhibit better compactness and uniformity.The distribution diagrams of thin film elements illustrate the film growth rate changes on the trend of the increase,decrease,and increase with the increase of cadmium sulfate concentration.XRD studies exhibit the crystal structure of the film is the hexagonal phase,and there are obvious diffraction peaks and better crystallinity when the concentration is 0.005 M.Spectrophotometer test results demonstrate that the relationship between zinc content x and optical band gap value E_(g) can be expressed by the equation E_(g)(x)=0.59x^(2)+0.69x+2.43.Increasing the zinc content can increase the optical band gap,and the absorbance of the thin film can be improved by decreasing the cadmium sulfate concentration,however,all of them have good transmittance.At a concentration of 0.005 M,the thin film has good absorbance in the 300-800 nm range,80%transmittance,and band gap value of 3.24 eV,which is suitable for use as a buffer layer for solar cells. | Yuming Xue Shipeng Zhang Dianyou Song Liming Zhang Xinyu Wang Lang Wang Hang Sun | 2021 | Journal of Semiconductors2021，42，11： | 3 |
| 16 | Protective effects of carbenoxolone are associated with attenuation of oxidative stress in ischemic brain injury显示文摘Accumulating evidence has suggested that the gap junction plays an important role in the determination of cerebral ischemia, but the underlying mechanisms remain to be elucidated. In this study, we assessed the effect of a gap-junction blocker, carbenoxolone (CBX), on ischemia/reperfusion-induced brain injury and the possible mechanisms. By using the transient cerebral ischemia model induced by occlusion of the middle cerebral artery for 30 min followed by reperfusion for 24 h, we found that pre-administration of CBX (25 mg/kg, intracerebroventricular injection, 30 min before cerebral ischemic surgery) diminished the infarction size in rats. And this was associated with a decrease of reactive oxygen species generation and inhibition of the activation of astrocytes and microglia. In PC12 cells, H 2 O 2 treatment induced more coupling and apoptosis, while CBX partly inhibited the opening of gap junctions and improved the cell viability. These results suggest that cerebral ischemia enhances the opening of gap junctions. Blocking the gap junction with CBX may attenuate the brain injury after cerebral ischemia/reperfusion by partially contributing to amelioration of the oxidative stress and apoptosis. | Lang Zhang Yu-Min Li Yu-Hong Jing Shao-Yu Wang Yan-Feng Song Jie Yin | 2013 | Neuroscience Bulletin2013，29，3： | 3 |
| 17 | Aerodynamic performance of owl-like airfoil undergoing bio-inspired flapping kinematics显示文摘Natural flyers have extraordinary flight skills and their prominent aerodynamic performance has attracted a lot of attention.However,the aerodynamic mechanism of birds’flapping wing kinematics still lacks in-depth understanding.In this paper,the aerodynamic performance of owl-like airfoil undergoing bio-inspired flapping kinematics extracted from a free-flying owl wing has been numerically investigated.The overset mesh technique is used to deal with the large range movements of flapping airfoils.The bio-inspired kinematics consist of plunging and pitching movement.A pure sinusoidal motion and a defined motion composed of plunging of sinusoidal motion and pitching of the bio-inspired kinematics are selected for comparison.The other two NACA airfoils are also selected to figure out the advantages of the owl-like airfoil.It is found that the cambered owl-like airfoil can enhance lift during the downstroke.The bio-inspired kinematics have an obvious advantage in lift generation with a presence of higher peak lift and positive lift over a wider proportion of the flapping cycle.Meanwhile,the bio-inspired motion is more economical for a lower power consumption compared with the sinusoidal motion.The sinusoidal flapping motion is better for thrust generation for a higher peak thrust value in both upstroke and downstroke,while the bio-inspired kinematics mainly generate thrust during the downstroke but produce more drag during the upstroke.The defined motion has similar lift performance with the bio-inspired kinematics,while it consumes more energy and generates less thrust.The unsteady flow field around airfoils is also analyzed to explain the corresponding phenomenon.The research in this paper is helpful to understand the flight mechanism of birds and to design a micro air vehicle with higher performance. | Xinyu LANG Bifeng SONG Wenqing YANG Wenping SONG | 2021 | Chinese Journal of Aeronautics2021，34，5： | 2 |
| 18 | Non-isothermal crystallization kinetics of wood-flour/polypropylene composites in the presence of b-nucleating agent显示文摘The influence of aryl amide compounds(TMB)as b-nucleating agents, on the non-isothermal crystallization of a wood-flour/polypropylene composite(WF/PP)prepared by compression molding was investigated by wide-angle X-ray diffraction and differential scanning calorimetry. TMB was proved to be an effective b-crystalline nucleating agent for WF/PP. The DSC data showed that the crystallization peak temperature(Tp) increased and the half-time(t1/2) decreased with the addition of TMB.Three theoretical models were used to analyze the nonisothermal crystallization process. The modified Avrami method and Mo method successfully explained the nonisothermal crystallization behavior of PP and its composites. Their activation energies for non-isothermal crystallization were determined basing on the Kissinger method. | Lang Huang Haigang Wang Weihong Wang Qingwen Wang Yongming Song | 2016 | Journal of Forestry Research2016，27，4： | 2 |
| 19 | Temperature-dependent chloride-mediated access to atom-precise silver thiolate nanoclusters显示文摘By using a unique temperature-dependent,chloride-mediated approach,two atom-precise silver nanoclusters[Cl@Ag_(14)(Tab)_(12)-(C_(5)H_(4)NCl)_(12)](PF_(6))_(13)(Cl@Ag_(14))and[Cl_(3)@Ag_(24)(Tab)_(20)(C_(5)H_(4)NCl)_(11)]Cl(PF_(6))_(20)(Cl_(3)@Ag_(24))(Tab=4-(trimethylammonio)benzenethiolate,C_(5)H_(4)NCl=3-chloropyridine)were obtained successfully.Notably,the number of chloride ions encapsulated inside the Ag-S shell could be regulated by the slow dissolution of almost insoluble KCl at various temperatures.The inclusion of additional core chloride ions results in the expansion of the surrounding Ag-S shell.This article provides a promising synthetic approach for controlling the number of Ag atoms that form a shell around the anionic core,in addition to offering a potential pathway for the introduction of other inorganic anions into silver clusters.More broadly,through the use of related ligands,the synthetic strategy offers scope for generating new families of silver thiolate clusters of varying size and composition. | Ling Yang Xin-Yao Wang Xiao-Yan Tang Meng-Yi Wang Chun-Yan Ni Hong Yu Ying-Lin Song Brendan F.Abrahams Jian-Ping Lang | 2022 | Science China Chemistry2022，65，6： | 2 |
| 20 | Flexible Vertex Engineers the Controlled Assembly of Distorted Supramolecular Tetrahedral and Octahedral Cages显示文摘Designing and building unique cage asemblies atrat increasing interet from supramolecular chemists but remain synthetically challenging.Herein,we propose the use of a flexible vertex with adjustable angles to selectively form highly distorted tetrahedral and octahedral cages,for the first time,in which the flexible ve rtex forms from the synergistic eft of coordination and covalent interactions.The inherent interligand angle of the vertex can be modulated by guest anions present,which allows for the fine-tuning of diferent cage geometries.Furthermore,the reversible structural transformation between tetrahedral and octahedral cages was achieved by anion exchange monitored by mass spectrometric technique,the smaller anions favoring tetrahedral cages,while the larger anions supporting octahedral cages.Additionally,the KBr-based cage thin films exhibited prominent enhancement of their third-order NLO responses in two or three orders of magnitude compared to those obtained for their corresponding solutions.This work not only provides a new methodology to build irregular polyhedral structures in a controlled and tunable way but also provides access to new kinds of promising functional optical materials. | Shu-Jin Bao Ze-Ming Xu Tian-Chen Yu Ying-Lin Song Heng Wang Zheng Niu Xiaopeng Li Brendan F.Abrahams Pierre Braunstein Jian-Ping Lang | 2022 | Research2022，，2： | 2 |
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