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| 1 | CARBON NANOTUBES VIA METHANE DECOMPOSITION ON AN ALUMINA SUPPORTED COBALT AEROGEL CATALYST显示文摘An alumina-supported cobalt aerogel catalyst prepared from a sol-gel and a supercritical drying method was used in the catalytic decomposition of methane. The physical-chemical properties of the catalyst were characterized and its activity for methane decomposition was investigated. The effects of calcination and reaction temperatures on the activity of the catalyst and the morphology of the carbon nanotubes produced were discussed. A CoAl2O4 spinel structure formed in the calcined catalyst. The quantity of the nanotubes produced in the reaction increases with the amount of cobalt in the reduced catalyst. A higher reaction temperature leads to a higher reaction rate, though faster deactivation of the catalyst occurs with the change. The carbon nanotubes grown on the catalyst have smooth walls and uniform di-ameter distribution. | Lingyu Piao, Jiuling Chen and Yongdan Li* Department of Catalysis Science and Technology, School of Chemical Engineering, Tianjin University, Tianjin 300072, P. R. China | 2003 | China Particuology2003，1，6： | 2 |
| 2 | Simultaneous production of hydrogen and nanocarbon from decomposition of methane on a nickel-based catalyst显示文摘 | Li Yongdan Chen Jiuling Qin Yongning | 2000 | Energy & Fuels2000，14，： | 1 |
| 3 | Formation of bamboo-shaped carbon filaments and dependence of their morphology on catalyst composition and reaction conditions显示文摘 | Jiuling Chen Yongdan Li Yanmei Ma | 2001 | Carbon2001，39，： | 1 |
| 4 | The doping effect of copper on the catalytic growth of carbon fibers from methane over a nikel-alumina catalyst prepared from Feitknecht compound precursor显示文摘 | Yongdan Li Jiuling Chen Liu Cheng | 1998 | J Catal1998，78，： | 1 |
| 5 | Encrypted Storage and Retrieval in Cloud Storage Applications显示文摘Problems with data security impede the widespread application of cloud computing. Although data can be protected through encryption, effective retrieval of encrypted data is difficult to achieve using traditional methods. This paper analyzes encrypted storage and retrieval technologies in cloud storage applications. A ranking method based on fully homomorphic encryption is proposed to meet demands of encrypted storage. Results show this method can improve efficiency. | Huang Yongfeng Zhang Jiuling Li Xing | 2010 | ZTE Communications2010，8，4： | 1 |
| 6 | 显示文摘 | Lingyu Piao Yongdan Li Jiuling Chen | 2002 | catalysis today2002，74，： | 1 |
| 7 | Surface modification of carbon fuels for direct carbon fuel cells显示文摘 | Li Xiang Zhu Zhonghua Chen Jiuling | 2009 | Journal of Power Sources2009，186，1： | 1 |
| 8 | Surface modification of carbon fuels for direct carbon fuel cells显示文摘 | Li Xiang Zhu Zhonghua Chert Jiuling | 2009 | Journal of Power Sources2009，186，1： | 1 |
| 9 | Composition and Analysis of Urban Skyline in Lakefront Region of Wanzhou District in Chongqing Municipality显示文摘Through field investigation in Wanzhou District, Chongqing Municipality, this paper analyzed current situation of city skyline in the lakefront region, proposed the existing problems and gave corresponding approaches for improvement. | YANG Jiuling YAO Ping YUAN Li | 2016 | Journal of Landscape Research2016，8，3： | 1 |
| 10 | Using the Dempster-Shafer Theory of Evidence to Rank Documents显示文摘Multi-source information can be utilized collaboratively to improve the performance of information retrieval. To make full use of the document and collection information, this paper introduces a new information retrieval model that relies on the Dempster-Shafer theory of evidence. Each query-document pair is taken as a piece of evidence for the relevance between a document and a query. The evidence is combined using Dempster's rule of combination, and the belief committed to the relevance is obtained. Retrieved documents are then ranked according to the belief committed to the relevance. Several basic probability assignments are also proposed. Extensive experiments over the Text REtrieval Conference (TREC) test collection ClueWeb09 show that the proposed model provides performance similar to that of the Vector Space Model (VSM). Under certain probability assignments, the proposed model outperforms the VSM by 63% in terms of mean average precision. | Jiuling Zhang Beixing Deng Xing Li | 2012 | Tsinghua Science and Technology2012，17，3： | 1 |
| 11 | CO X -free hydrogen and carbon nanofibers production by decomposition of methane on Fe, Co and Ni metal catalysts显示文摘 | Jiuling Chen Xingzheng Zhou Lei Cao Yongdan Li | 2004 | Studies in Surface Science and Catalysis2004，，： | 1 |
| 12 | Surface modification of carbon fuels for direct carbon fuel cells 显示文摘 | Li Xiang Zhu Zhonghua Chen Jiuling | 2009 | Journal of Power Sources2009，186，1： | 1 |
| 13 | Simultaneous Production of Hydrogen and Nanocarbon from Decomposition of Methane over Nickel - Based Catalyst 显示文摘 | Li Yongdan Chen Jiuling Qin Yongning | 2000 | Energy Fuels2000，14，6： | 1 |
| 14 | CHARACTERIZATION AND ADSORPTION PROPERTIES OF POROUS CARBON NANOFIBER GRANULES显示文摘The properties of the porous granules produced by agglomeration of catalytically grown carbon nanofibers were investigated in this work. The single pellet crushing strength of the granules is high, e.g., 1.6-2.5 MPa. They have high specific surface areas, averaging 72-141 m2?g-1, and the majority of their pores are mesopores or macropores. The adsorption at 298 K of benzene or phenol on the granules is much lower than that on activated carbon and depends not only on the specific surface area of the carbon material but also on the sewing structure of the granules and the mor- phology of the carbon nanofibers. Treatment in dilute nitric acid appreciably reduces such adsorption. | Jiuling Chen Qinghai Chen Yongdan Li | 2006 | China Particuology2006，4，5： | 1 |
| 15 | The Existence of the Negative Charge of Gold in Sulphide Minerals and Its Formation Mechanism显示文摘Through a study, particularly an X-ray photoelectron spectroscopy (XPS or ESCA) analysis, of gold-bearing arsenopyrite and pyrite in Carlin-type gold deposits of Guangxi, China, and hydrothermally synthesized gold-bearing pyrite and marcasite, the authors have found that these minerals contain 'invisible gold' whose binding energy is lower than that of native gold (Au°). Therefore they suggest that gold occurs in a negative charge state in these sulphide minerals as it replaces some sulphur and is combined with sulphur with the covalent bond. This paper also preliminarily discusses the possibility of its formation from the chemistry and geochemistry of gold, crystal chemistry of arsenopyrite, pyrite and marcasite and geochemical environment. | Li Jiuling, Feng Daming, Qi Feng and Zhang Guilan Institute of Mineral Deposits, Chinese Academy of Geological Sciences, Beijing Beijing U niversity of Science and Engineering, Beijing Fei Zhenbi | 1995 | Acta Geologica Sinica(English Edition)1995，69，3： | 0 |
| 16 | LEARNING WITH ERROR BASED SEARCHABLE ENCRYPTION SCHEME显示文摘A learning with error problem based encryption scheme that allows secure searching over the cipher text is proposed. Both the generation of cipher text and the trapdoor of the query are based on the problem of learning with errors. By performing an operation over the trapdoor and the cipher text, it is able to tell if the cipher text is the encryption of a plaintext. The secure searchable encryption scheme is both cipher text and trapdoor indistinguishable. The probabilities of missing and failing match occurrence in searching are both exponentially small. | Zhang Jiuling Deng Beixing Li Xing | 2012 | Journal of Electronics(China)2012，29，5： | 0 |
| 17 | Inclusion Complex of Podophyllotoxin with y-Cyclodextrin Preparation, Characterization, Anticancer Activity, Water-Solubility and Toxicity显示文摘有 γ-cyclodextrin (γ-CD ) 的 podophyllotoxin (PPT ) 的包括建筑群被准备。包括建筑群的行为,描述,和水溶解度小心地经由荧光光谱学, thermogravimetry,微分扫描热量测定, X 光检查衍射分析,和 1 H 和 2D 原子磁性的回声光谱学。而且,到在老鼠的人的癌症线和毒性的 antitumor 活动被学习。结果证明包括建筑群与可观的明显的稳定性常数 K s (4245.5 L·mol −1) 。水溶解度更加被改进。另外,包括建筑群的 anticancer 活动比 cis 铂的好(DDP,积极控制) 。最重要地, podophyllotoxin 包括建筑群的毒性把更多的安全归结并且变得为将是大贵重物品作为一种 antitumor 药研究它的应用到人在的老鼠进一步。 | Yafei Guo Yushun Zhang Jiuling Li Fen Zhao Yang Liu Min Su Yubo Jiang Yuqi Liu Jihong Zhang Bo Yang Rui Yang | 2016 | Chinese Journal of Chemistry2016，34，4： | 0 |
| 18 | Whole-milk consumption decreases the risk of inflammatory bowel disease:a two-sample Mendelian rand omization analysis显示文摘Objective: The impact of dairy fat on inflammatory bowel disease remained inconclusive. We aimed to compare the effects of whole-milk and skimmed-milk consumption on the risk of inflammatory bowel disease using a Mendelian randomization analysis.Methods: We conducted a genome-wide association study of the preference for whole versus skimmed milk using data for 20,200 whole-milk consumers and 67,847 skimmed-milk consumers from the UK Biobank. The lead single nucleotide polymorphisms in the associated loci were identified at the genome-wide significance level, and were further employed as instrumental variables for whole-milk preference. We conducted a two-sample Mendelian randomization analysis with whole-milk preference as the exposure and inflammatory bowel disease as the outcome. The pleiotropic effects and heterogeneity of the instrumental variables were estimated using Mendelian randomization-Egger regression and CochranQ test, respectively. This study was conducted using the UKB resources under the application '53536' . The UK Biobank was approved by the North West Multi-center Research Ethics Committee, the National Information Governance Board for Health and Social Care in England and Wales, and the Community Health Index Advisory Group in Scotland.Results: The genome-wide association study identified five lead nucleotide polymorphisms associated with whole-milk preference. Mendelian randomization indicated that whole-milk preference significantly decreased the risk of inflammatory bowel disease (β=-1.735,P=0.048). Of the two subtypes, whole-milk preference was associated with a lower risk of Crohn disease (β=-2.549,P=0.032), but had no significant effect on the risk of ulcerative colitis (β=-1.002,P=0.44).Conclusion: Consumption of whole-milk fat may protect against Crohn disease, compared with skimmed milk. This conclusion was based on causal inference in a cohort study, and further validation in randomized controlled trials is warranted. | Jiuling Li Haoxue Zhu Aowen Tian Ying Guo Xiaoxuan Zhao Miaoran Zhang Lanlan Chen Jianping Wen Jianli Yang Baiyu Qi Peng Chen | 2021 | Journal of Bio-X Research2021，4，3： | 0 |
| 19 | Robust description and recognition of various viewpoint dynamic textures显示文摘The problem of recognizing natural scenes, such as water, smoke, fire, wind-blown vegetation and a flock of flying birds, is considered. These scenes exhibit the characteristic dynamic pattern, but have stochastic extent. They are referred to as dynamic texture(DT). In reality, the diversity of DTs on different viewpoints and scales are very common, which also bring great difficulty to recognize DTs. In the previous studies, due to no considering of the deformable and transient nature of elements in DT, the motion estimation method is based on brightness constancy assumption,which seem inappropriate for aggregate and complex motions. A novel motion model based on relative motion in the neighborhood of two-dimensional motion fields is proposed. The estimation of non-rigid motion of DTs is based on the continuity equation, and then the local vector difference(LVD) is proposed to characterize DT local relative motion. Spatiotemporal statistics of the LVDs is used as the representation of DT sequences. Excellent performances of classifying all DTs in UCLA database demonstrate the capability of the proposed method in describing DT. | Qian Wang Jiuling Du Na Li | 2016 | Journal of Systems Engineering and Electronics2016，27，4： | 0 |
| 20 | CATALYST DESIGN FOR METHANE DEHYDROGENATION AND BENZENE HYDROGENATION显示文摘Highly active and stable nickel catalyst for dehydrogenation of methane and hydrogenation of benzene is prepared from a precursor with hydrotalcite-like anionic clam structure by coprecipitation. The nickel particles have a narrow size distribution in several nanometers, and have a strong interaction with other components such as Al2O3. This catalyst is highly sensitive to further modification by doping and to reaction condition. On a modified catalyst, benzene hydrogenation to cyclohexane proceeds to complete at 373 K. While on another catalyst, different structured nanocarbons are obtained at moderate temperatures. It is found that the thioresistance of the nickel catalyst in hydrogenation can be improved by doping. | Li Yongdan, Hou Chaopeng, Qin Yuxiang, Meng Xiangchun, Chen Jiuling and Chang Liu (Department of Catalysis Science and Technology School of Chemical Engineering, Tianjin University Tianjin 300072) | 2000 | 化工学报2000，51，S1： | 0 |
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