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| 1 | Special Section:SARS-CoV-2 Preliminary evidence from a multicenter prospective observational study of the safety and efficacy of chloroquine for the treatment of COVID-19显示文摘Effective therapies are urgently needed for the SARS-CoV-2 pandemic.Chloroquine has been proved to have antiviral effect against coronavirus in vitro.In this study,we aimed to assess the efficacy and safety of chloroquine with different doses in COVID-19.In this multicenter prospective observational study,we enrolled patients older than 18 years old with confirmed SARS-CoV-2 infection excluding critical cases from 12 hospitals in Guangdong and Hubei Provinces.Eligible patients received chloroquinephosphate s00 mg,orally,once(half dose)or twice(full dose)daily.Patients treated with non-chloroquine therapy were included as historical controls.The primary endpoint is the time to undetectable viral RNA.Secondary outcomes include the proportion of patients with undetectable viral RNA by day 10 and 14,hospitalization time,duration of fever,and adverse events.A total of 197 patients completed chloroquine treatment,and 176patients were included as historical controls.The median time to achieve an undetectable viral RNA was shorter in chloroquine than in non-chloroquine(absolute difference in medians-6.0 days;95%CI-6.0 to—4.0).The duration of fever is shorter in chloroquine(geometric mean ratio 0.6;95%CIO.5 to 0.8).No serious adverse events were observed in the chloroquine group.Patients treated with half dose experienced lower rate of adverse events than with full dose.Although randomized trials are needed for further evaluation,this study provides evidence for safety and efficacy of chloroquine in COVID-19 and suggests that chloroquine can be a cost-effective therapy for combating the COVID-19 pandemic. | Mingxing Huang Man Li Fei Xiao Pengfei Pang Jiabi Liang Tiantian Tang Shaoxuan Liu Binghui Chen Jingxian Shu Yingying You Yang Li Meiwen Tang Jianhui Zhou Guanmin Jiang Jingfen Xiang Wenxin Hong Songmei He Zhaoqin Wang Jianhua Feng Changqing Lin Yinong Ye Zhilong Wu Yaocai Li Bei Zhong Ruilin Sun Zhongsi Hong Jing Liu Huili Chen Xiaohua Wang Zhonghe Li Duanqing Pei Lin Tian Jinyu Xia Shanping Jiang Nanshan Zhong Hong Shan | 2020 | National Science Review2020，7，9： | 20 |
| 2 | Changing trends of disease burden of gastric cancer in China from 1990 to 2019 and its predictions:Findings from Global Burden of Disease Study显示文摘Objective:China is one of the countries with the heaviest burden of gastric cancer(GC)in the world.Understanding the epidemiological trends and patterns of GC in China can contribute to formulating effective prevention strategies.Methods:The data on incidence,mortality,and disability-adjusted life-years(DALYs)of GC in China from1990 to 2019 were obtained from the Global Burden of Disease Study(2019).The estimated annual percentage change(EAPC)was calculated to evaluate the temporal trends of disease burden of GC,and the package Nordpred in the R program was used to perform an age-period-cohort analysis to predict the numbers and rates of incidence and mortality in the next 25 years.Results:The number of incident cases of GC increased from 317.34 thousand in 1990 to 612.82 thousand in2019,while the age-standardized incidence rate(ASIR)of GC decreased from 37.56 per 100,000 in 1990 to 30.64 per 100,000 in 2019,with an EAPC of-0.41[95%confidence interval(95%CI):-0.77,-0.06].Pronounced temporal trends in mortality and DALYs of GC were observed.In the next 25 years,the numbers of new GC cases and deaths are expected to increase to 738.79 thousand and 454.80 thousand,respectively,while the rates of incidence and deaths should steadily decrease.The deaths and DALYs attributable to smoking were different for males and females.Conclusions:In China,despite the fact that the rates of GC have decreased during the past three decades,the numbers of new GC cases and deaths increased,and will continue to increase in the next 25 years.Additional strategies are needed to reduce the burden of GC,such as screening and early detection,novel treatments,and the prevention of risk factors. | Tongchao Zhang Hui Chen Xiaolin Yin Qiufeng He Jinyu Man Xiaorong Yang Ming Lu | 2021 | Chinese Journal of Cancer Research2021，33，1： | 19 |
| 3 | Role of contrast-enhanced ultrasonography in percutaneous radiofrequency ablation of liver metastases and efficacy evaluation显示文摘Objective: To retrospectively investigate the role of contrast-enhanced ultrasonography (CEUS) in percutaneous radiofrequency ablation (RFA) in patients with liver metastases and evaluate the therapeutic efficacy of RFA assisted by CEUS. Methods: From May 2004 to September 2010, 136 patients with 219 liver metastatic lesions received CEUS examination 1 h before RFA (CEUS group), and other 126 patients with 216 lesions without CEUS examination in the earlier period were served as a historical control group. The mean tumor size was 3.2 cm and the mean tumor number was 1.6 in the CEUS group, while 3.4 cm and 1.7 in the control group, respectively (P>0.05). The clinical characteristics, recurrence results and survival outcomes were compared between two groups. Results: In the CEUS group, two isoechoic tumors were not demonstrated on unenhanced ultrasonography (US), and 63 (47%) of 134 tumors examined with CEUS were 0.3 cm larger than with unenhanced US. Furthermore, in 18.4% of 136 patients, additional 1-3 tumors were detected on CEUS. The CEUS group showed higher early tumor necrosis and lower intrahepatic recurrence than the control group. The 3-year overall survival (OS) rate and the 3-year local recurrence-free survival (LRFS) rate in the CEUS group were 50.1% and 38.3%, in contrast to 25.3% and 19.3% in the control group, respectively (P=0.002 and P<0.001). Conclusions: CEUS provides important information for RFA treatment in patients with liver metastases and better therapeutic effect could be attained. | Jie Wu Wei Yang Shanshan Yin Jinyu Wu Wei Wu Kun Yan Minhua Chen | 2013 | Chinese Journal of Cancer Research2013，25，2： | 17 |
| 4 | The Mesozoic Basin-Mountain Coupling Process of the Southern East China Sea Shelf Basin and its Adjacent Land Area显示文摘Objective Basin-mountain coupling is a key issue for basin formation and evolution.The analysis of basin-mountain coupling process,as well as quantitative or semiquantitative restoration of prototype basin and the evolution of continental margin,can be used to | YANG Changqing YANG Yanqiu LI Gang YANG Chuansheng YANG Jinyu | 2016 | Acta Geologica Sinica(English Edition)2016，90，3： | 9 |
| 5 | Preparation and CO2 adsorption properties of porous carbon by hydrothermal carbonization of tree leaves显示文摘Porous carbon materials were prepared by hydrothermal carbonization(HTC) and KOH activation of camphor leaves and camellia leaves. The morphology, pore structure, chemical properties and CO2 capture ability of the porous carbon prepared from the two leaves were compared. The effect of HTC temperature on the structure and CO2 adsorption properties was especially investigated. It was found that HTC temperature had a major effect on the structure of the product and the ability to capture CO2. The porous carbon materials prepared from camellia leaves at the HTC temperature of 240℃ had the highest proportion of microporous structure, the largest specific surface area(up to 1823.77m^2/g) and the maximum CO2 adsorption capacity of 8.30mmol/g at 25℃ under 0.4 MPa. For all prepared porous carbons, simulation results of isothermal adsorption model showed that Langmuir isotherm model described the adsorption equilibrium data better than Freundlich isotherm model. For porous carbons prepared from camphor leaves, pseudo-first order kinetic model was well fitted with the experimental data. However,for porous carbons prepared from camellia leaves, both pseudo-first and pseudo-second order kinetics model adsorption behaviors were present. The porous carbon materials prepared from tree leaves provided a feasible option for CO2 capture with low cost, environmental friendship and high capture capability. | Guangzhi Yang Shen Song Jing Li Zhihong Tang Jinyu Ye Junhe Yang | 2019 | Journal of Materials Science & Technology2019，35，5： | 8 |
| 6 | Glucose-regulated protein 75 suppresses apoptosis induced by glucose deprivation in PC12 cells through inhibition of Bax conformational change显示文摘调整葡萄糖的蛋白质(Grp75 ) 75 是属于热吃惊蛋白质的重要分子的女伴 70 家庭并且在线粒体主要住。Grp75 能保护房间免受葡萄糖剥夺(GD ) 的伤害损害。然而,它由执行这功能的分子的机制是未知的。这里,我们报导 Grp75 能推迟细胞色素 c 的版本,还原剂 apoptosis 由 GD 导致,并且我们也发现 Grp75 能减少 Bax/Bcl-2 基因表示比率并且在这个过程期间禁止 Bax 的 conformational 变化。在结论,这些调查结果建议 Grp75 overexpression 能禁止 GD 导致的 apoptosis。Grp75 禁止了 Bax conformational 变化推迟细胞色素 c 的版本,因此提供保护给对 GD 毒性首先被用作一个神经原模型的 PC12 房间。 | Ling Yang Xiaoyu Liu Jinyu Hao Yunlong Yang Mingxia Zhao Ji Zuo Wen Liu | 2008 | Acta Biochimica et Biophysica Sinica2008，40，4： | 6 |
| 7 | Nonlinear regression model for peak-failure strength of rockfill materials in general stress space显示文摘A nonlinear regression model for peak-failure strength prediction of rockfill materials is proposed. It is based on the relationship between the peak-failure stress ratio and the normalized confining pressure as well as the relationship between the normalized peak-failure stress ratio and the exponent function of the intermediate principal stress ratio. This model can well predict the variations of the peak-failure stress ratio with the initial confining pressure and the intermediate principal stress ratio for different rockfill materials under different general stress paths. Comparisons of the measured and predicted results show that the peak-failure strength under the constant-p' and constant-b path is larger than that under the constant-σ'_3 and constant-b path. The predictive capacity of the proposed model for the peakfailure stress ratio is better than that for the peak-failure friction angle. | Yang Xiao Minqiang Meng Hui Chen Xiang He Jinyu Ran Weicheng Shi | 2018 | Geoscience Frontiers2018，9，6： | 6 |
| 8 | Whole Genome Analyses of Chinese Population and De Novo Assembly of A Northern Han Genome显示文摘To unravel the genetic mechanisms of disease and physiological traits,it requires comprehensive sequencing analysis of large sample size in Chinese populations.Here,we report the primary results of the Chinese Academy of Sciences Precision Medicine Initiative(CASPMI)project launched by the Chinese Academy of Sciences,including the de novo assembly of a northern Han reference genome(NH1.0)and whole genome analyses of 597 healthy people coming from most areas in China.Given the two existing reference genomes for Han Chinese(YH and HX1)were both from the south,we constructed NH1.0,a new reference genome from a northern individual,by combining the sequencing strategies of PacBio,10×Genomics,and Bionano mapping.Using this integrated approach,we obtained an N50 scaffold size of 46.63 Mb for the NH1.0 genome and performed a comparative genome analysis of NH1.0 with YH and HX1.In order to generate a genomic variation map of Chinese populations,we performed the whole-genome sequencing of 597 participants and identified 24.85 million(M)single nucleotide variants(SNVs),3.85 M small indels,and 106,382 structural variations.In the association analysis with collected phenotypes,we found that the T allele of rs1549293 in KAT8 significantly correlated with the waist circumference in northern Han males.Moreover,significant genetic diversity in MTHFR,TCN2,FADS1,and FADS2,which associate with circulating folate,vitamin B12,or lipid metabolism,was observed between northerners and southerners.Especially,for the homocysteine-increasing allele of rs1801133(MTHFR 677T),we hypothesize that there exists a “comfort”zone for a high frequency of 677T between latitudes of 35–45 degree North.Taken together,our results provide a high-quality northern Han reference genome and novel population-specific data sets of genetic variants for use in the personalized and precision medicine. | Zhenglin Du Liang Ma Hongzhu Qu Wei Chen Bing Zhang Xi Lu Weibo Zhai Xin Sheng Yongqiao Sun Wenjie Li Meng Lei Qiuhui Qi Na Yuan Shuo Shi Jingyao Zeng Jinyue Wang Yadong Yang Qi Liu Yaqiang Hong Lili Dong Zhewen Zhang Dong Zou Yanqing Wang Shuhui Song Fan Liu Xiangdong Fang Hua Chen Xin Liu Jingfa Xiao Changqing Zeng | 2019 | Genomics, Proteomics & Bioinformatics2019，17，3： | 4 |
| 9 | The normal cell proliferation and wound healing effect of polysaccharides from Ganoderma amboinense显示文摘To study the cell proliferation and wound healing activity of polysaccharides from Ganoderma amboinense(GAMPS),the polysaccharide was extracted by water extraction and alcohol precipitation method,and its monosaccharide composition and molecular weight were analyzed.The effects of different concentrations of GAMPS on the cell proliferation were determined by cell survival rate test,and the wound healing ability of GAMPS to NIH/3T3 cells was detected.The preliminary evaluation of the antioxidant ability of GAMPS was conducted by the oxygen radical absorbance capacity(ORAC).The results showed that the GAMPS was composed of glucose,mannose,and galactose at a molar ratio of 67.62:14.07:7.50,and the weightaverage molecular weights were 5.439×10^(6) and 1.704×10^(5) g/mol by using high-performance gel-permeation chromatography-multiple angle laser scatter(HPGPC-MALS)analysis.GAMPS(0.2μg/μL)showed the strongest proliferation ability to THP-1 cells,with cell survival rate of 178.7%.The wound healing effect of GAMPS(0.1μg/μL)was obvious on NIH/3T3 and 3.75μg/μL of GAMPS showed the strongest total antioxidant ability.All the results indicate that GAMPS promotes cell proliferation,and has cell wound healing effect and strong antioxidant activity.The results provide theoretical foundation for the development and utilization of GAMPS. | Shuangzhi Zhao Ming Lei Hui Xu Hailun He Alexander Suvorov Junhua Wang Jiying Qiu Qingxin Zhou Jinyu Yang Leilei Chen | 2021 | Food Science and Human Wellness2021，10，4： | 4 |
| 10 | Quantum Communication Networks and Trust Management: A Survey显示文摘This paper summarizes the state of art in quantum communication networks and trust management in recent years.As in the classical networks,trust management is the premise and foundation of quantum secure communication and cannot simply be attributed to security issues,therefore the basic and importance of trust management in quantum communication networks should be taken more seriously.Compared with other theories and techniques in quantum communication,the trust of quantum communication and trust management model in quantum communication network environment is still in its initial stage.In this paper,the core technologies of establishing secure and reliable quantum communication networks are categorized and summarized,and the trends of each direction in trust management of quantum communication network are discussed in depth. | Shibin Zhang Yan Chang Lili Yan Zhiwei Sheng Fan Yang Guihua Han Yuanyuan Huang Jinyue Xia | 2019 | Computers, Materials & Continua2019，，9： | 3 |
| 11 | Survey and evaluation of monocular visual-inertial SLAM algorithms for augmented reality显示文摘Although VSLAM/VISLAM has achieved great success,it is still difficult to quantitatively evaluate the localization results of different kinds of SLAM systems from the aspect of augmented reality due to the lack of an appropriate benchmark.For AR applications in practice,a variety of challenging situations(e.g.,fast motion,strong rotation,serious motion blur,dynamic interference)may be easily encountered since a home user may not carefully move the AR device,and the real environment may be quite complex.In addition,the frequency of camera lost should be minimized and the recovery from the failure status should be fast and accurate for good AR experience.Existing SLAM datasets/benchmarks generally only provide the evaluation of pose accuracy and their camera motions are somehow simple and do not fit well the common cases in the mobile AR applications.With the above motivation,we build a new visual-inertial dataset as well as a series of evaluation criteria for AR.We also review the existing monocular VSLAM/VISLAM approaches with detailed analyses and comparisons.Especially,we select 8 representative monocular VSLAM/VISLAM approaches/systems and quantitatively evaluate them on our benchmark.Our dataset,sample code and corresponding evaluation tools are available at the benchmark website http://gffzz3e1cca23d9984cb3hokfowpfxopcf6o6o.ffgz.tsg.suse.edu.cn/eval-vislam/. | Jinyu LI Bangbang YANG Danpeng CHEN Nan WANG Guofeng ZHANG Hujun BAO | 2019 | Virtual Reality & Intelligent Hardware2019，1，4： | 3 |
| 12 | A hybrid genipin-crosslinked dual-sensitive hydrogel/nanostructured lipid carrier ocular drug delivery platform显示文摘The objective of this study was to develop a novel hybrid genipin-crosslinked dual-sensitive hydrogel/nanostructured lipid carrier(NLC) drug delivery platform. An ophthalmic antiinflammatory drug, baicalin(BN) was chosen as the model drug. BN –NLC was prepared using melt-emulsification combined with ultra-sonication technique. Additionally, a dual pH-and thermo-sensitive hydrogel composed of carboxymethyl chitosan(CMCS) and poloxamer 407(F127) was fabricated by a cross-linking reaction with a nontoxic crosslinker genipin(GP). GP-CMCS/F127 hydrogel was characterized by FTIR, NMR, XRD and SEM. The swelling studies showed GP-CMCS/F127 hydrogel was both pH-and thermo-sensitive. The results of in vitro release suggested BN –NLC gel can prolong the release of baicalin comparing with BN eye drops and BN –NLC. Ex vivo cornea permeation study was evaluated using Franz diffusion cells. The apparent permeability coefficient(Papp) of BN –NLC gel was much higher(4.46-fold) than that of BN eye drops. Through the determination of corneal hydration levels, BN –NLC gel was confirmed that had no significant irritation to cornea. Ex vivo precorneal retention experiments were carried out by a flow-through approach. The results indicated that the NLC-based hydrogel can prolong precorneal residence time. In conclusion, the hybrid NLCbased hydrogel has a promising potential for application in ocular drug delivery. | Yibin Yu Ruoxi Feng Jinyu Li Yuanyuan Wang Yiming Song Guoxin Tan Dandan Liu Wei Liu Xinggang Yang Hao Pan Sanming Li | 2019 | Asian Journal of Pharmaceutical Sciences2019，14，4： | 3 |
| 13 | Solute clusters-promoted strength-ductility synergy in Al-Sc alloy显示文摘Sc solute clusters with a high number density were produced in an Al-0.3 wt.%Sc alloy when aged at250℃,while fine Al_(3)Sc precipitates were predominantly formed in the same alloy aged at 300℃.The alloy strengthened by Sc solute clusters displayed higher yield strength and simultaneously greater ductility than its counterpart strengthened by Al_(3)Sc precipitates.This clearly demonstrates a superior strengthductility synergy promoted by the Sc solute clusters in Al-Sc alloys.The effects of Al_(3)Sc precipitates and Sc solute clusters on ductility were discussed in comparison by using a micromechanics fracture model.Since the Sc clusters were stabilized at 250℃,the Al-Sc alloys strengthened by Sc solute clusters should find extensive application fields within a wide temperature range,due to their high temperature resistance. | Chong Yang Pengming Cheng Baoan Chen Jinyu Zhang Gang Liu Jun Sun | 2022 | Journal of Materials Science & Technology2022，，1： | 3 |
| 14 | Family-level diversity of extracellular proteases of sedimentary bacteria from the South China Sea显示文摘Protease-producing bacteria and their extracellular proteases are key players in degrading organic nitrogen to drive marine nitrogen cycling and yet knowledge on both of them is still very limited. This study screened protease-producing bacteria from the South China Sea sediments and analyzed the diversity of their extracellular proteases at the family level through N-terminal amino acid sequencing. Results of the 16 S rRNA gene sequence analysis showed that all screened protease-producing bacteria belonged to the class Gammaproteobacteria and most of them were affiliated with different genera within the orders Alteromonadales and Vibrionales. The Nterminal amino acid sequence analysis for fourteen extracellular proteases from fourteen screened bacterial strains revealed that all these proteases belonged to the M4 family of metalloproteases or the S8 family of serine proteases. This study presents new details on taxa of marine sedimentary protease-producing bacteria and types of their extracellular proteases, which will help to comprehensively understand the process and mechanism of the microbial enzymatic degradation of marine sedimentary organic nitrogen. | Jinyu Yang Yangyang Feng Xiulan Chen Binbin Xie Yuzhong Zhang Mei Shi Xiying Zhang | 2019 | Acta Oceanologica Sinica2019，38，12： | 3 |
| 15 | Electrolyte/Electrode Interfaces in All‑Solid‑State Lithium Batteries:A Review显示文摘All-solid-state lithium batteries are promising next-generation energy storage devices that have gained increasing attention in the past decades due to their huge potential towards higher energy density and safety.As a key component,solid electrolytes have also attracted significant attention and have experienced major breakthroughs,especially in terms of Li-ion conductivity.However,the poor electrode compatibility of solid electrolytes can lead to the degradation of electrolyte/electrode interfaces,which is the major cause for failure in all-solid-state lithium batteries.To address this,this review will summarize the indepth understanding of physical and chemical interactions between electrolytes and electrodes with a focus on the contact,charge transfer and Li dendrite formation occurring at electrolyte/electrode interfaces.Based on mechanistic analyses,this review will also briefly present corresponding strategies to enhance electrolyte/electrode interfaces through compositional modifications and structural designs.Overall,the comprehensive insights into electrolyte/electrode interfaces provided by this review can guide the future investigation of all-solid-state lithium batteries. | Yuepeng Pang Jinyu Pan Junhe Yang Shiyou Zheng Chunsheng Wang | 2021 | Electrochemical Energy Reviews2021，4，2： | 3 |
| 16 | Analysis of Metro Station Ridership Considering Spatial Heterogeneity显示文摘This study aims to explore the role of spatial heterogeneity in ridership analysis and examine the relationship between built environment, station attributes and urban rapid transit ridership at the station level.Although spatial heterogeneity has been widely acknowledged in spatial data analysis, it has been rarely considered in travel behavior studies.Four models(three global models-ordinary least squares(OLS), spatial lag model(SLM), spatial error model(SEM) and one local model-geographically weighted regression(GWR) model) are estimated separately to explore the relationship between various independent variables and station ridership, and identify the influence of spatial heterogeneity.Using the data of built environment and station characteristics, the results of diagnostic identify evidence the existence of spatial heterogeneity in station ridership for the metro network in Nanjing, China.Results of comparing the various goodness-of-fit indicators show that, the GWR model yields the best fit of the data, performance followed by the SEM, SLM and OLS model.The results also demonstrate that population, number of lines, number of feeder buses, number of exits, road density and proportion residential area have a significant impact on station ridership.Moreover, the study pays special attention to the spatial variation in the coefficients of the independent variables and their statistical significance.It underlines the importance of taking spatial heterogeneity into account in the station ridership analysis and the decision-making in urban planning. | GAN Zuoxian FENG Tao YANG Min Harry TIMMERMANS LUO Jinyu | 2019 | Chinese Geographical Science2019，29，6： | 2 |
| 17 | Tubular/helical architecture construction based on rolled-up AlN nanomembranes and resonance as optical microcavity显示文摘Aluminum nitride(AlN)has attracted a great amount of interest due to the fact that these group III–V semiconductors present direct band gap behavior and are compatible with current micro-electro-mechanical systems.In this work,three dimensional(3D)AlN architectures including tubes and helices were constructed by rolling up AlN nanomembranes grown on a silicon-on-insulator wafer via magnetron sputtering.The properties of the AlN membrane were characterized through transmission electron microscopy and X-ray diffraction.The thickness of AlN nanomembranes could be tuned via the RIE thinning method,and thus micro-tubes with different diameters were fabricated.The intrinsic strain in AlN membranes was investigated via micro-Raman spectroscopy,which agrees well with theory prediction.Whispering gallery mode was observed in AlN tubular optical microcavity in photoluminescence spectrum.A postprocess involving atomic layer deposition and R6G immersion were employed on as-fabricated AlN tubes to promote the Q-factor.The AlN tubular micro-resonators could offer a novel design route for Si-based integrated light sources.In addition,the rolled-up technology paves a new way for AlN 3D structure fabrication,which is promising for AlN application in MEMS and photonics fields. | Jinyu Yang Yang Wang Lu Wang Ziao Tian Zengfeng Di Yongfeng Mei | 2020 | Journal of Semiconductors2020，41，4： | 2 |
| 18 | Effect of reactor pressure on the growth rate and structural properties of GaN films显示文摘The effect of reactor pressure on the growth rate, surface morphology and crystalline quality of GaN films grown on sapphire by metalorganic chemical vapor deposition is studied. The results show that as the reactor pressure increases from 2500 to 20000 Pa, the GaN surface becomes rough and the growth rate of GaN films decreases. The rough surface morphology is associated with the initial high temperature GaN islands, which are large with low density due to low adatom surface diffusion under high reactor pressure. These islands prolong the occurrence of 2D growth mode and decrease the growth rate of GaN film. Meanwhile, the large GaN islands with low density lead to the reduction of threading dislocation density during subsequent island growth and coalescence, and consequently decrease the full width at half maximum of X-ray rocking curve of the GaN film. | NI JinYu HAO Yue ZHANG JinCheng YANG LinAn | 2009 | Chinese Science Bulletin2009，54，15： | 2 |
| 19 | Microstructure Morphologies of Asphalt Binders using Atomic Force Microscopy显示文摘We investigated microstructure morphologies of three asphalts(SK, Karamay, and Esso) used in China using atomic force microscopy(AFM). The topography and phase contrast images were obtained. Topographic profile and three dimensional images were described. Roughnesses of microstructure were calculated. And the chemical compositions of asphalt were tested to explain the microstructural mechanism of the asphalt. The results show that the topography and phase image in atomic force microscopy are appropriate to evaluate the microstructure of the asphalt binder. There are significant differences in microstructural morphologies including bee-like structure, topographic profile, 3D image, and roughness for three asphalts in this study. There are three different phases in microstructure of asphalt binder. The oil source and chemical composition of asphalt, especially asphaltenes content have a great influence on the microstructure. | 李波 YANG Jinyu CHEN Zhanquan LI Hailian | 2016 | Journal of Wuhan University of Technology(Materials Science)2016，31，6： | 2 |
| 20 | Simple hybrid dithiafulvenes-triphenylamine systems as dopant-free hole-transporting materials for efficient perovskite solar cells显示文摘Two extended hybrid conjugated systems based on a triphenylamine(TPA) core with two and three peripheral 1,4-dithiafulvenes(DTF) units coded WH-2 and WH-3 as hole-transporting materials(HTMs) applied in perovskite solar cells(PSCs) are synthesized by facile one-step reaction in good yield over 75%. DTF unit as electron donor can enhance the electron donating ability and the fusion of benzenic ring of TPA with DTF unit may lead to reinforced intermolecular interactions in the solid state. In addition,WH-2 and WH-3 exhibit a pyramid shape containing partial planarity and quasi three-dimensionality features, which is also conducive to enhancing the π-π stacking of molecules in the solid state. The above-mentioned structural characteristics make the two HTMs have good hole mobilities. As a result,WH-2 and WH-3 obtained the high intrinsic hole mobilities of 4.69 × 10^(-4)and 2.18 × 10^(-3)cm^(2)V^(-1)s^(-1)respectively. Finally, the power conversion efficiencies(PCEs) of PSCs with WH-2 and WH-3 as cost-effective dopant-free HTMs are 15.39% and 19.22% respectively and the PCE of PSC with WH-3 is on a par with that of PSC with Li-TFSI/t-BP doped Spiro-OMe TAD(19.67%). | Zhongquan Wan Yunpeng Zhang Jinyu Yang Jianxing Xia Fangyan Lin Xiaojun Yao Junsheng Luo Chunyang Jia | 2022 | Journal of Energy Chemistry2022，31，5： | 2 |
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