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| 1 | Application of waste frying oils in the biosynthesis of biodemulsifier by a demulsifying strain Alcaligenes sp.S-XJ-1显示文摘Exploration of biodemulsifiers has become a new research aspect.Using waste frying oils(WFOs) as carbon source to synthesize biodemulsifiers has a potential prospect to decrease production cost and to improve the application of biodemulsifiers in the oilfield.In this study,a demulsifying strain,Alcaligenes sp.S-XJ-1,was investigated to synthesize a biodemulsifier using waste frying oils as carbon source.It was found that the increase of initial pH of culture medium could increase the biodemulsifier yield but decrease the demulsification ratio compared to that using paraffin as carbon source.In addition,a biodemulsifier produced by waste frying oils and paraffin as mixed carbon source had a lower demulsification capability compared with that produced by paraffin or waste frying oil as sole carbon source.Fed-batch fermentation of biodemulsifier using waste frying oils as supplementary carbon source was found to be a suitable method.Mechanism of waste frying oils utilization was studied by using tripalmitin,olein and tristearin as sole carbon sources to synthesize biodemulsifier.The results showed saturated long-chain fatty acid was diffcult for S-XJ-1 to utilize but could effectively enhance the demulsification ability of the produced biodemulsifier.Moreover,FT-IR result showed that the demulsification capability of biodemulsifiers was associated with the content of C=O group and nitrogen element. | Jia Liu Kaiming Peng Xiangfeng Huang Lijun Lu Hang Cheng Dianhai Yang Qi Zhou Huiping Deng | 2011 | Journal of Environmental Sciences2011,23,6: | 4 |
| 2 | Cenozoic Volcanism in South China Sea and Its Vicinity and South China Sea Spreading显示文摘The rock series, rock types and Sr Nd isotopic dating of the Cenozoic volcanic rocks in the South China Sea are similar to those in its vicinity. On the basis of the spreading age of the South China Sea, the Cenozoic volcanic rocks are divided into three stages: the pre spreading stage, the spreading stage and the post spreading stage. The deep process characteristics of the asthenosphere and lithosphere may be inferred from the study on primary basaltic magma. The top layers of the asthenosphere both in the spreading stage and in the pre spreading stage are closer to the earth surface than that in the post spreading stage. From the pre spreading stage to the spreading stage, the top layer of the asthenosphere decreased in depth, while the amount of interstitial partial melts increased. The evolution of the primary basaltic magma shows a progressive evolution sequence of the rifting volcanism and a faster lithospheric spreading velocity. From the spreading stage to the post spreading stage, the top layer of the asthenosphere gradually increased in depth, but the amount of interstitial partial melts decreased. The evolution of primary basaltic magma shows a retrogressive evolution sequence of the rifting volcanism and a gradual decrease in the lithospheric spreading velocity. The depth recognized by the study on the Cenozoic volcanism demonstrates the deep environment for the formation and evolution of the South China Sea. | Zhao Hailing Deng Jinfu Li Kaiming Di Yongjun Yu Junji Zhao Jianhua Li Yonghua Faculty of Earth Sciences and Mineral Resources, China University of Geosciences, Beijing 100083 | 2002 | Journal of China University of Geosciences2002,13,3: | 4 |
| 3 | Trending IC design directions in 2022显示文摘For the non-stop demands for a better and smarter society, the number of electronic devices keeps increasing exponentially;and the computation power, communication data rate, smart sensing capability and intelligence are always not enough. Hardware supports software, while the integrated circuit(IC) is the core of hardware. In this long review paper, we summarize and discuss recent trending IC design directions and challenges, and try to give the readers big/cool pictures on each selected small/hot topics. We divide the trends into the following six categories, namely, 1) machine learning and artificial intelligence(AI) chips, 2) communication ICs, 3) data converters, 4) power converters, 5) imagers and range sensors, 6) emerging directions. Hope you find this paper useful for your future research and works. | Chi-Hang Chan Lin Cheng Wei Deng Peng Feng Li Geng Mo Huang Haikun Jia Lu Jie Ka-Meng Lei Xihao Liu Xun Liu Yongpan Liu Yan Lu Kaiming Nie Dongfang Pan Nan Qi Sai-Weng Sin Nan Sun Wenyu Sun Jiangtao Xu Jinshan Yue Milin Zhang Zhao Zhang | 2022 | Journal of Semiconductors2022,43,7: | 3 |
| 4 | Cryo-EM structures of human m^(6)A writer complexes显示文摘N6-methyladenosine(m^(6)A)is the most abundant ribonucleotide modification among eukaryotic messenger RNAs.The m^(6)A“writer”consists of the catalytic subunit m^(6)A-METTL complex(MAC)and the regulatory subunit m^(6)A-METTL-associated complex(MACOM),the latter being essential for enzymatic activity.Here,we report the cryo-electron microscopy(cryo-EM)structures of MACOM at a 3.0-Åresolution,uncovering that WTAP and VIRMA form the core structure of MACOM and that ZC3H13 stretches the conformation by binding VIRMA.Furthermore,the 4.4-Åresolution cryo-EM map of the MACOM–MAC complex,combined with crosslinking mass spectrometry and GST pull-down analysis,elucidates a plausible model of the m^(6)A writer complex,in which MACOM binds to MAC mainly through WTAP and METTL3 interactions.In combination with in vitro RNA substrate binding and m^(6)A methyltransferase activity assays,our results illustrate the molecular basis of how MACOM assembles and interacts with MAC to form an active m^(6)A writer complex. | Shichen Su Shanshan Li Ting Deng Minsong Gao Yue Yin Baixing Wu Chao Peng Jianzhao Liu Jinbiao Ma Kaiming Zhang | 2022 | Cell Research2022,32,11: | 3 |
| 5 | Validation of spectrum method for improving efficiency of continuous-wave & Q-switched Tm-doped yttrium aluminum garnet laser显示文摘Tm^(3+)-doped 2-μm lasers benefit many applications such as atmospheric sensing,medical treatment,and spectroscopy[1-3].Therefore,in the past two decades,both continuous-wave(CW)and pulse operations have | HaiZhou Huang Pan Gao HuaGang Liu Jian-Hong Huang Juan Wang KaiMing Ruan Wen Weng Hui Zheng ZiXiong Lin ShuTao Dai Jing Deng WenXiong Lin | 2018 | Science China(Physics,Mechanics & Astronomy)2018,61,3: | 2 |
| 6 | Geometric and electronic structures of metal-substitutional fullerene C59 Sm and metal-exohedral fullerenes of Sm @ C60 显示文摘 | Lu Gongli Deng Kaiming Wu Haiping | 2006 | The Journal of Chemical Physics2006,124,15: | 1 |
| 7 | TSA1 interacts with CSN1/CSN and may be functionally involved in Arabidopsis seedling development in darkness显示文摘COP9 signalosome (CSN ) 是参予多样的细胞、发展的过程的 multiprotein 建筑群。CSN1, CSN 的子单元之一,为经由一种总线标准的 multiprotein 建筑群的汇编是必要的(proteasome, COP9 signalosome 和开始因素 3 ) 在 CSN1 的 C 终端一半的领域。然而, CSN1 的 N 终端域(NTD ) 的角色,为 CSN 的函数批评,完全没被理解。用酵母二混血儿(Y2H ) 屏蔽,我们发现 CSN1 的 NTD 与联系 TSK 蛋白质 1 交往(TSA1 ) ,报导 Ca2+ 有约束力的蛋白质。在 CSN1 和 TSA1 之间的相互作用被 co-immunoprecipitation 在 Arabidopsis 证实。tsa1 异种在黑暗展出了短胚轴显型,但是类似于在白光下面的野类型的 Arabidopsis,它建议 TSA1 可能在黑暗中调整 Arabidopsis 胚轴开发。而且, TSA1 的表示在 csn1 0 异种(fus6 ) 是显著地更低的,当 CSN1 表示没随着弱 TSA1 表示在 tsa1 异种变化时。一起,这些调查结果在幼苗开发建议在 TSA1 和 CSN1 之间的一种功能的关系。 | Wenjun Li Baisheng Zang Citao Liu Lu Lu Ning Wei Kaiming Cao Xing Wang Deng Xiping Wang | 2011 | Journal of Genetics and Genomics2011,38,11: | 1 |
| 8 | High-density triple-phase contact points for enhanced photocatalytic CO_(2) reduction to methanol显示文摘The efficiency of photocatalytic CO_(2) reduction reaction(PCRR)is restricted by the low solubility and mobility of CO_(2) in water,poor CO_(2) adsorption capacity of catalyst,and competition with hydrogen evolution reaction(HER).Recently,hydrophobic modification of the catalyst surface has been proposed as a potential solution to induce the formation of triple-phase contact points(TPCPs)of CO_(2)(gas phase),H_(2) O(liquid phase),and catalysts(solid phase)near the surface of the catalyst,enabling direct delivery of highly concentrated CO_(2) molecules to the active reaction sites,resulting in higher CO_(2) and lower H+surface concentrations.The TPCPs thus act as the ideal reaction points with enhanced PCRR and suppressed HER.However,the initial synthesis of triple-phase photocatalysts tends to possess a lower bulk density of TPCPs due to the simple structure leading to limited active points and CO_(2) adsorption sites.Here,based on constructing a hydrophobic hierarchical porous TiO_(2)(o-HPT)with interconnected macropores and mesopores structure,we have significantly increased the density of TPCPs in a unit volume of the photocatalyst.Compared with hydrophobic macroporous TiO_(2)(o-MacPT)or mesoporous TiO_(2)(o-MesPT),the o-HPT with increased TPCP density leads to enhanced photoactivity,enabling a high methanol production rate with 1111.5μmol g^(−1) h^(−1) from PCRR.These results emphasize the significance of high-density TPCPs design and propose a potential path for developing efficient PCRR systems. | Hanwen Jian Kaiming Deng Tongyu Wang Chengxi Huang Fang Wu Hailing Huo Bo Ouyang Xuan Liu Jingjing Ma Erjun Kan Ang Li | 2024 | Chinese Chemical Letters2024,35,2: | 0 |
| 9 | RNA structure determination:From 2D to 3D显示文摘RNA molecules serve a wide range of functions that are closely linked to their structures.The basic structural units of RNA consist of single-and double-stranded regions.In order to carry out advanced functions such as catalysis and ligand binding,certain types of RNAs can adopt higher-order structures.The analysis of RNA structures has progressed alongside advancements in structural biology techniques,but it comes with its own set of challenges and corresponding solutions.In this review,we will discuss recent advances in RNA structure analysis techniques,including structural probing methods,X-ray crystallography,nuclear magnetic resonance,cryo-electron microscopy,and small-angle X-ray scattering.Often,a combination of multiple techniques is employed for the integrated analysis of RNA structures.We also survey important RNA structures that have been recently determined using various techniques. | Jie Deng Xianyang Fang Lin Huang Shanshan Li Lilei Xu Keqiong Ye Jinsong Zhang Kaiming Zhang Qiangfeng Cliff Zhang | 2023 | Fundamental Research2023,3,5: | 0 |
| 10 | Magmatism, Deep Processes and Gold Deposits in Eastern Hebei, China显示文摘TheeasternHebeiProvinceofChinaisoneofthemajorconcentratingareasofgoldmineralizationineasternChina,whichisanimportantpartofthe... | Zhao Hailing Deng Jinfu Li Kaiming Xu Liquan Department of Geology and Mineral Resources, China University of Geosciences, Beijing 100083 | 1999 | Journal of Earth Science1999,18,1: | 0 |