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| 1 | Lipid accumulation and CO_2 utilization of two marine oil-rich microalgal strains in response to CO_2 aeration显示文摘Biological CO_2 sequestration by microalgae is a promising and environmentally friendly technology applied to sequester CO_2. The characteristics of neutral lipid accumulation by two marine oil-rich microalgal strains,namely, Isochrysis galbana and Nannochloropsis sp., through CO_2 enrichment cultivation were investigated in this study. The optimum culture conditions of the two microalgal strains are 10% CO_2 and f medium. The maximum biomass productivity, total lipid content, maximum lipid productivity, carbon content, and CO_2 fixation ability of the two microalgal strains were obtained. The corresponding parameters of the two strains were as follows:((142.42±4.58) g/(m^2·d),(149.92±1.80) g/(m^2·d)),((39.95±0.77)%,(37.91±0.58)%),((84.47±1.56) g/(m^2·d),(89.90±1.98) g/(m^2·d)),((45.98±1.75)%,(46.88±2.01)%), and((33.74±1.65) g/(m^2·d),(34.08±1.32) g/(m^2·d)). Results indicated that the two marine microalgal strains with high CO_2 fixation ability are potential strains for marine biodiesel development coupled with CO_2 emission reduction. | WANG Shuai ZHENG Li HAN Xiaotian YANG Baijuan LI Jingxi SUN Chengjun | 2018 | Acta Oceanologica Sinica2018，37，2： | 4 |
| 2 | Model development of GaN MOVPE growth chemistry for reactor design显示文摘 | Jingxi Sun J. M. Redwing T. F. Kuech | 2000 | Journal of Electronic Materials2000，，1： | 1 |
| 3 | Synthesis of biodiesel in capillary microreactors显示文摘 | Juan Sun Jingxi Ju Lei Ji | 2008 | Ind Eng Chem Res2008，，98： | 1 |
| 4 | Synthesis and characterization of crosslinked phenolie-typed beads by dispersion polyeondensation of 2-phe- noxyethanol with formaldehyde 显示文摘 | Ji Chunnuan Shi Jingxi Sun Changmei | 2010 | Journal of Applied Polymer Seience2010，117，1： | 1 |
| 5 | Distribution pattern and geochemical analysis of rare earth elements in deep-ocean sediments显示文摘The content and distribution pattern of rare earth elements(REEs)in surface sediments from the Eastern and Western Pacifi c Ocean,the Northern and Southern Atlantic Ocean,and the Southwestern Indian Ocean were explored and the resources and geochemical characteristics of REEs in deep-ocean sediments from diff erent oceans were studied.The total REE abundances(ΣREE)in the diff erent oceans ranged as follows:Eastern Pacifi c,56.88–500.02μg/g;Western Pacifi c,290.68–439.94μg/g;Northern Atlantic,55.33–154.90μg/g;Southern Atlantic,40.83–69.30μg/g;and Southwestern Indian Ocean,20.24–64.76μg/g.Their corresponding LREE(La-Eu)/HREE(Gd-Lu)average values were 5.18,5.86,9.01,5.21,and 4.59,which indicated that the light REEs were all evidently enriched.δEu andδCe showed slight Eu-negative anomalies and signifi cant Ce-positive anomalies in all sediments.Although the contents of REEs in the sediments varied among the diff erent oceans,the distribution patterns of REEs were similar,and the correlation coeffi cient was greater than 0.9290.In the Eastern Pacifi c sediments,ΣREE showed a signifi cantly positive correlation with Co,Cu,Zn,Mn,Mo and a weak correlation with Fe.In the Western Pacifi c and Southern Atlantic sediments,ΣREE presented no obvious correlation and a weakly negative correlation with Co,Cu,Zn,Mn,Mo and Fe,respectively.ΣREE in the Southwestern Indian Ocean sediments positively correlated with Cu,Zn,Mn,Mo,Fe,and had a weakly negative correlation with Co. | Jingxi LI Chengjun SUN Fenghua JIANG Fenglei GAO Yifan ZHENG | 2021 | Journal of Oceanology and Limnology2021，39，1： | 1 |
| 6 | Model development of GaN MOVPE growth chemistry for reactor design 显示文摘 | Sun Jingxi Redwing J M Kuech T F | 2000 | J Electron Mater2000，29，1： | 1 |
| 7 | Cryo-EM structures for the Mycobacterium tuberculosis iron-loaded siderophore transporter IrtAB显示文摘The adenosine 5'-triphosphate(ATP)-binding cassette(ABC)transporter,IrtAB,plays a vital role in the replication and viability of Mycobacterium tuberculosis(Mtb),where its function is to import iron-loaded siderophores.Unusually,it adopts the canonical type IV exporter fold.Herein,we report the structure of unliganded Mtb IrtAB and its structure in complex with ATP,ADP,or ATP analogue(AMP-PNP)at resolutions ranging from 2.8 to 3.5Å.The structure of IrtAB bound ATP-Mg2+shows a“head-to-tail”dimer of nucleotide-binding domains(NBDs),a closed amphipathic cavity within the transmembrane domains(TMDs),and a metal ion liganded to three histidine residues of IrtA in the cavity.Cryo-electron microscopy(Cryo-EM)structures and ATP hydrolysis assays show that the NBD of IrtA has a higher affinity for nucleotides and increased ATPase activity compared with IrtB.Moreover,the metal ion located in the TM region of IrtA is critical for the stabilization of the conformation of IrtAB during the transport cycle.This study provides a structural basis to explain the ATP-driven conformational changes that occur in IrtAB. | Shan Sun Yan Gao Xiaolin Yang Xiuna Yang Tianyu Hu Jingxi Liang Zhiqi Xiong Yuting Ran Pengxuan Ren Fang Bai Luke WGuddat Haitao Yang Zihe Rao Bing Zhang | 2023 | Protein & Cell2023，14，6： | 0 |
| 8 | A process-oriented approach for identifying potential landslides considering time-dependent behaviors beyond geomorphological features显示文摘Geomorphological features are commonly used to identify potential landslides.Nevertheless,overemphasis on these features could lead to misjudgment.This research proposes a process-oriented approach for potential landslide identification that considers time-dependent behaviors.The method integrates comprehensive remote sensing and geological analysis to qualitatively assess slope stability,and employs numerical analysis to quantitatively calculate aging stability.Specifically,a time-dependent stability calculation method for anticlinal slopes is developed and implemented in discrete element software,incorporating time-dependent mechanical and strength reduction calculations.By considering the time-dependent evolution of slopes,this method highlights the importance of both geomorphological features and time-dependent behaviors in landslide identification.This method has been applied to the Jiarishan slope(JRS)on the Qinghai-Tibet Plateau as a case study.The results show that the JRS,despite having landslide geomorphology,is a stable slope,highlighting the risk of misjudgment when relying solely on geomorphological features.This work provides insights into the geomorphological characterization and evolution history of the JRS and offers valuable guidance for studying slopes with similar landslide geomorphology.Furthermore,the process-oriented method incorporating timedependent evolution provides a means to evaluate potential landslides,reducing misjudgment due to excessive reliance on geomorphological features. | Xiang Sun Guoqing Chen Xing Yang Zhengxuan Xu Jingxi Yang Zhiheng Lin Yunpeng Liu | 2024 | Journal of Rock Mechanics and Geotechnical Engineering2024，16，3： | 0 |
| 9 | Enhancement of morphological and emission stability of deep-blue small molecular emitter via a universal side-chain coupling strategy for optoelectronic device显示文摘Film morphology of emissive layers is crucial to the performance and stability of solution-processable organic light-emitting diodes(OLEDs). Compared to the interpenetration of conjugated polymer chain,small molecular emitter with a flexible side chain always presents easily aggregation upon external treatment, and caused π-electronic coupling, which is undesirable for the efficiency and stability of deep-blue OLEDs. Herein, we proposed a side-chain coupling strategy to enhance the film morphological an emission stability of solution-processable small molecular deep-blue emitter. In contrary to “parent” MC8 TPA,the crosslinkable styryl and vinyl units were introduced as ended unit at the side-chain of Cm TPA and OEYTPA. Interestingly, Cm TPA and OEYTPA films present a relatively stable morphology and uniform deep-blue emission after thermal annealing(160 ℃) in the atmosphere, different to the discontinuous MC8 TPA annealed film. Besides, compared to the Cm TPA and OEYTPA ones, serious polaron formation in the MC8 TPA annealed film also negative to the deep-blue emission, according to transient absorption analysis. Therefore, both Cm TPA and OEYTPA annealed film obtained at 140 ℃ present an excellent deep-blue ASE behavior with a 445 nm, but absence for MC8 TPA ones, associated with the disruption of annealed films. Finally, enhancement of device performance based on Cm TPA and OEYTPA film(~40%)after thermal annealing with a similar performance curves also confirmed the assumption above. Therefore, these results also supported the effectiveness of our side-chain coupling strategy for optoelectronic applications. | Ning Sun Han Gao Lili Sun Jingxi An Man Xu Chen Sun Yamin Han Jinyi Lin Jiangli Cai Mingjian Ni Liangliang He Jinghao Yang Zhoulu Wang Lubing Bai Xinwen Zhang Qi Wei Xuehua Ding Chengrong Yin Linghai Xie Wei Huang | 2022 | Chinese Chemical Letters2022，33，2： | 0 |
| 10 | The effect of subbranch for the quantification of local hemodynamic environment in the coronary artery:a computed tomography angiography–based computational fluid dynamic analysis显示文摘Background:Hemodynamic parameters derived from computed tomography angiography–based computational fluid dynamics(CFD)analysis have been widely used for clinical decision-making and researches to assess the vulnerability of atherosclerotic plaques and explain the initialization and development of atherosclerosis.Subbranches in the CFD model might affect the accuracy of hemodynamic parameters,but the effectiveness has been least quantified.Methods:A coronary artery baseline model was generated with focal stenosis at the proximal left anterior descending artery.Nineteen comparing models were created by systematically removing various subbranches to examine the changes in hemodynamic parameters,including time-averaged pressure(TAP),time-averaged wall shear stress(TAWSS),oscillatory shear index(OSI),and particle relative residence time(RRT).Changes in these parameters were assessed quantitatively around the stenosis and near the region where subbranches were removed.Results:The removal of subbranches caused a significant change in outflow rate,and there was generally a decrease in all CFD parameters in the regions of interest with a decrease in outflow rate.The subbranch removal had a significant impact on the calculation of TAWSS,OSI,and RRT,whereas TAP was insensitive to the removal with approximately 0.25%variation in all 19 models.The local effect from removing branch segments generally became negligible after 5 diameters away from the cutting-off position,but the decrease could be affected by other factors,such as a large curvature.Conclusion:The outflow rate is a dominant factor for the calculation of TAP,TAWSS,OSI,and RRT.Removal of subbranches has a minor effect on the TAP calculation,but its effect is considerable on the TAWSS,OSI,and RRT.The effect of subbranch removal is limited in a region with 5 local diameters. | Yibing Shi Jin Zheng Ning Yang Yang Chen Jingxi Sun Ying Zhang Xuanxuan Zhou Yongguang Gao Suqing Li Haijing Zhu Julio Acosta-Cabronero Ping Xia Zhongzhao Teng | 2022 | Emergency and Critical Care Medicine2022，2，4： | 0 |
| 11 | A Review of Microplastics in China Marine Waters显示文摘Microplastics(<5 mm)are ubiquitous in the environment and can pose potential danger to the ecosystem and even human health.As the sink of microplastics,the ocean,especially the densely populated coastal area,has become a hotspot for research on microplastic pollution.In the last decade,the research of marine microplastics has been rapidly increasing in China.This review summarized the microplastic research conducted in China marine waters so far,and introduced the trends and progress of microplastic research in the four seas along the coast of China.We reviewed and compared the current sampling,extraction,and identification methodologies of China's microplastic research.According to the sampling method,the 30 reviewed studies were separated into two categories,trawl sampling and bulk sampling,to summarize relevant data,including abundance,sizes,shapes,colors and polymer types of microplastics.The main results showed that the distribution of microplastics in China's marine environment varied significantly,with offshore mariculture zones and the South China Sea being the most contaminated areas.Transparent,granules(or pellets)and fibers were the most dominant microplastic colors and shapes,and the size of microplastics was influenced significantly by the sampling method.Polyethylene(PE),polypropylene(PP)and polystyrene(PS)were the most common polymer types found in the China Sea,accounting for 49.96%,29.97%,and 12.38%of the total studies,respectively.Compared with other global data,China's coastal microplastic pollution is at an intermediate level and does not seem to be a major microplastic pollution source. | GAO Fenglei LI Jingxi HU Jun LI Xianguo SUN Chengjun | 2023 | Journal of Ocean University of China2023，22，5： | 0 |
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