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| 1 | Influence of the post-treatment of HZSM-5 zeolite on catalytic performance for alkylation of benzene with methanol显示文摘The porous material HZSM-5 zeolite with micro-mesopore hierarchical porosity was prepared by post-treatment(combined alkali treatment and acid leaching) of parent zeolite and its catalytic performance for benzene alkylation with methanol was investigated. The effect of post-treatment on the textural properties was characterized by various techniques(including ICP-AES, XRD, nitrogen sorption isotherms, SEM, NH3-TPD, Py-IR and TG). The results indicated that the post-treatment could modify the structural and acidic properties of HZSM-5 zeolite. In this procedure, not only additional mesopores were created by selective extraction of silicon but also the acidity was tuned. Consequently, the modified HZSM-5 zeolite showed larger external surface area with less acid sites as compared to the parent zeolite. It was found out that the modified zeolite exhibited a higher benzene conversion and xylene selectivity for alkylation of benzene with methanol as well as excellent life span of the catalyst than conventional ones. This can be explained by the facts that the presence of additional mesopores improved the diffusion property in the reactions. Furthermore, the modified zeolite showed an appropriate Br?nsted acidity for effective suppression of the side reaction of methanol to olefins, thus reduced the accumulation of coke on the HZSM-5 zeolite, which was favorable for the catalyst stability. In comparison with the parent HZSM-5 zeolite,the modified zeolite by alkali treatment and acid leaching showed better performance for the benzene alkylation with methanol. | Qingtao Wang Wenwen Han Hualei Hu Jinghui Lyu Xiaolong Xu Qunfeng Zhang Hongjing Wang Xiaonian Li | 2017 | Chinese Journal of Chemical Engineering2017,25,12: | 13 |
| 2 | Benzene alkylation with methanol over phosphate modified hierarchical porous ZSM-5 with tailored acidity显示文摘The acidity and acid distribution of hierarchical porous ZSM-5 were tailored via phosphate modification. The catalytic results showed that both benzene conversion and selectivity of toluene and xylene increased with the presence of appropriate amount of phosphorus. Meanwhile, side reactions such as methanol to olefins related with the formation of by-product ethylbenzene formation and isomerization of xylene to meta-xylene were suppressed efficiently. The acid strength and sites amount of Br?nsted acid of the catalyst were crucial for improving benzene conversion and yield of xylene, whereas passivation of external surface acid sites played an important role in breaking thermodynamic equilibrium distribution of xylene isomers. | Jinghui Lyu Hualei Hu Carolyn Tait Jiayao Rui Caiyi Lou Qingtao Wang Wenwen Han Qunfeng Zhang Zhiyan Pan Xiaonian Li | 2017 | Chinese Journal of Chemical Engineering2017,25,9: | 11 |
| 3 | Convolutional neural networks for expert recommendation in community question answering显示文摘Community Question Answering(CQA) is becoming an increasingly important web service for people to search for expertise and to share their own. With lots of questions being solved, CQA have built a massive, freely accessible knowledge repository, which can provide valuable information for the broader society rather than just satisfy the question askers. It is critically important for CQA services to get high quality answers in order to maximize the benefit of this process. However, people are considered as experts only in their own specialized areas. This paper is concerned with the problem of expert recommendation for a newly posed question, which will reduce the questioner's waiting time and improve the quality of the answer, so as to improve the satisfaction of the whole community. We propose an approach based on convolutional neural networks(CNN) to resolve this issue. Experimental analysis over a large real-world dataset from Stack Overflow demonstrates that our approach achieves a significant improvement over several baseline methods. | Jian WANG Jiqing SUN Hongfei LIN Hualei DONG Shaowu ZHANG | 2017 | Science China(Information Sciences)2017,60,11: | 11 |
| 4 | Coastal blue carbon: Concept, study method, and the application to ecological restoration显示文摘Coastal blue carbon refers to the carbon taken from atmospheric CO2; fixed by advanced plants(including salt marsh,mangrove, and seagrass), phytoplankton, macroalgae, and marine calcifiers via the interaction of plants and microbes; and stored in nearshore sediments and soils; as well as the carbon transported from the coast to the ocean and ocean floor. The carbon sequestration capacity per unit area of coastal blue carbon is far greater than that of the terrestrial carbon pool. The mechanisms and controls of the carbon sink from salt marshes, mangroves, seagrasses, the aquaculture of shellfish and macroalgae, and the microbial carbon pump need to be further studied. The methods to quantify coastal blue carbon include carbon flux measurements, carbon pool measurements, manipulative experiments, and modeling. Restoring, conserving, and enhancing blue carbon will increase carbon sinks and produce carbon credits, which could be traded on the carbon market. The need to tackle climate change and implement China's commitment to cut carbon emissions requires us to improve studies on coastal blue carbon science and policy. The knowledge learned from coastal blue carbon improves the conservation and restoration of salt marshes,mangroves, and seagrasses; enhances the function of the microbial carbon pump; and promotes sustainable aquaculture, such as ocean ranching. | Jianwu TANG Shufeng YE Xuechu CHEN Hualei YANG Xiaohong SUN Faming WANG Quan WEN Shaobo CHEN | 2018 | Science China Earth Sciences2018,61,6: | 8 |
| 5 | Investigation of octupole effects in superheavy nuclei with improved potential-energy-surface calculations显示文摘It has been found that high-order deformation (e.g.β6) can have important effects on the structures of superheavy nuclei. In the present work, we investigate octupole deformation effects on superheavy nuclei with an improved potential-energy-surface (PES) calculation by including reflection-asymmetric deformations in a space of (β2 ,β3 ,β4 , β5). The calculations give various deformations including highly deformed (β2 ≈ 0.4) and superdeformed (β2 ≈ 0.7) shapes. The octupole-deformation degree of freedom mainly affects the fission barrier beyond the second minimum of PES. | WANG HuaLei LIU HongLiang XU FuRong JIAO ChangFeng | 2012 | Chinese Science Bulletin2012,57,15: | 7 |
| 6 | Numerical simulation study on the influence of the ground stress field on the stability of roadways显示文摘We adopt the concept of generalized plane strain to model a roadway in a stress field.This can avoid limitations caused by simplifying the stress analysis as plane strain.FLAC3D was used to investigate the maximum tensile stress and displacement of a roadway in a known stress field for angles,α,between the roadway axial direction and the maximum principal stress of 0°,30°,45°,60° and 90°.This theory was applied to the analysis of an engineering case.The results indicate that stress and displacement of the surrounding rock increase as the angle,α,increases.This provides some significant guidance for a reasonable layout of roadways in a known stress field. | ZHANG Hualei | 2010 | Mining Science and Technology2010,20,5: | 7 |
| 7 | Geochronology and Geochemistry of Metallogenetic Porphyry Bodies from the Nongping Au-Cu Deposit in the Eastern Yanbian Area, NE China: Implications for Metallogenic Environment显示文摘The metallogenetic porphyry bodies in the Nongping Au-Cu deposit, in the eastern Yanbian area, mainly include porphyritic granodiorite and biotite granodiorite porphyry. They are featured with high silicon and enrichment in sodium, and classified into sodic rocks of low-K tholeiitic basalt series. Except slightly low Sr content, the rock basically has the geochemical characteristics of the adakite: relatively high A12O3 content, relatively low MgO content, depletion in Y and Yb; relative enrichment in large ion lithophile elements (LILEs) and light rare-earth elements (LREEs), relatively low content of high field strength elements (HFSEs); positive Eu anomaly or weak negative Eu anomaly. In situ zircon dating technology LA-MC-ICP-MS was used to conduct single-grain zircon dating of biotite granodiorite porphyry, and the results show that the age of metallogenetic porphyry body is 100.04±0.88 Ma, indicating that the porphyry bodies were emplaced in the late Cretaceous period. According to the regional tectonic setting and the comparison with the same kind of deposits, we think that the metallogenetic porphyry bodies in the Nongping Au-Cu deposit have a close genetic connection with the subduction of the Pacific plate in the late Yanshanian period. The adakitic magma generated from partial melting of the subducting plate has high formation temperature, high oxygen fugacity, and volatile constituents' enrichment, so it is helpful for enrichment of metallogenetic elements and plays an important role in the formation of porphyry Au-Cu deposits in this region. | REN Yunsheng JU Nan ZHAO Hualei WANG Hui HOU Kejun LIU Shen | 2012 | Acta Geologica Sinica(English Edition)2012,86,3: | 7 |
| 8 | Design of Vibrio 16S rRNA Gene Specific Primers and Their Application in the Analysis of Seawater Vibrio Community显示文摘类 Vibrio 原因 vibriosis 的病原的种, maricultured 动物和海味消费者的最流行的疾病之一。在海味生产的链监视他们的动力学,处理并且消费为食物和海洋生物养殖安全是很重要的。为了充实代表 Vibrio 16S ribosomal RNA 基因(rDNA ) ,碎裂并且识别进一步真实及时的这些细菌并且同时地在在链的细菌的植物群之中,有选择地放大 Vibrio 16S rDNA 碎片的一双教材与他们在海水 Vibrio 的分析证明的特性和报道被设计社区。二份教材, VF169 和 VR744 的 Thespecificities 和范围,被使用强风节目在在 GenBank 可得到的细菌的 16S rDNAs 之中理论上决定,实际上,由放大 Vibrio16S, rDNA 从海水 DNA 碎裂。超过 88.3% 序列在 GenBank,与 VR744 显示出相同火柴,属于 Vibrio 类。33 克隆的一个总数随机被选择并且定序。所有序列显示出他们的最高的类似到并且多样的已知的 Vibrio 种类在那些附近聚类。设计的教材能够检索宽范围 ofVibrio 16S rDNA 在海水在细菌的植物群之中明确地碎裂,海味耕作的最重要的自然环境。 | LIU Yong YANG Guanpin WANG Hualei CHEN Jixiang SHI Xianming ZOU Guiwei WEI Qiwei SUN Xiuqin | 2006 | Journal of Ocean University of China2006,5,2: | 5 |
| 9 | Synthesized high-silica hierarchical porous ZSM-5 and optimization of its reaction conditions in benzene alkylation with methanol显示文摘In our present work, the high-silica hierarchical porous ZSM-5 with appropriate Br(o|¨)nsted acidity and hierarchical porous structure was synthesized by sol-gel method for continuously catalytic conversion of benzene alkylation with methanol to xylene. The effects of temperature, pressure, benzene/methanol molar ratio and weight hour space velocity(WHSV) on the catalytic performance of the catalyst were investigated as well. As a result, the high-silica hierarchical porous ZSM-5 showed great performance as the yield of xylene was up to 41.1% under the optimum reaction conditions(500 ℃,0.1 MPa,M_(benzene)/M_(methanol)= 1:1.5 and WHSV=4 h 1), while the selectivity to by-product, ethylbenzene, was well suppressed(below 0.1%). In addition, the catalyst structure and properties were characterized by the means of XRD, IR, TPD,SEM, TEM and N_2 physical adsorption technologies. | Jiayao Rui Jinghui Lyu Hualei Hu Qunfeng Zhang Qingtao Wang Xiaonian Li | 2019 | Chinese Chemical Letters2019,30,3: | 5 |
| 10 | Generation of 84-fs pulses from a mode-locked Tm:CNNGG disordered garnet crystal laser显示文摘A mode-locked laser based on a Tm:CNNGG disordered crystal as an active medium and a single-walled carbon nanotube saturable absorber is demonstrated, operating at a central wavelength of 2018 nm. Transformlimited 84 fs pulses are generated with an average output power of 22 mW at a repetition rate of ~90 MHz.A maximum output power of 98 mW is obtained at a slightly longer pulse duration of 114 fs. | ZHONGBEN PAN YICHENG WANG YONGGUANG ZHAO HUALEI YUAN XIAOJUN DAI HUAQIANG CAI JI EUN BAE SUN YOUNG CHOI FABIAN ROTERMUND XAVIER MATEOS JOSEP MARIA SERRES PAVEL LOIKO UWE GRIEBNER VALENTIN PETROV | 2018 | Photonics Research2018,6,8: | 4 |
| 11 | A Multi-semantics Classification Method Based on Deep Learning for Incredible Messages on Social Media显示文摘How to classify incredible messages has attracted great attention from academic and industry nowadays.The recent work mainly focuses on one type of incredible messages(a.k.a rumors or fake news)and achieves some success to detect them.The existing problem is that incredible messages have different types on social media,and rumors or fake news cannot represent all incredible messages.Based on this,in the paper,we divide messages on social media into five types based on three dimensions of information evaluation metrics.And a novel method is proposed based on deep learning for classifying the five types of incredible messages on social media.More specifically,we use attention mechanism to obtain deep text semantic features and strengthen emotional semantics features,meanwhile,construct universal metadata as auxiliary features,concatenating them for incredible messages classification.A series of experiments on two representative real-world datasets demonstrate that the proposed method outperforms the state-of-the-art methods. | WU Lianwei RAO Yuan YU Hualei WANG Yiming AMBREEN Nazir | 2019 | Chinese Journal of Electronics2019,28,4: | 4 |
| 12 | Regulation of innate immune responses by rabies virus显示文摘Rabies virus(RABV)is an infectious and neurotropic pathogen that causes rabies and infects humans and almost all warm-blooded animals,posing a great threat to people and public safety.It is well known that innate immunity is the critical first line of host defense against viral infection.It monitors the invading pathogens by recognizing the pathogen-associated molecular patterns and danger-associated molecular patterns through pattern-recognition receptors,leading to the production of type I interferons(IFNα/β),inflammatory cytokines,and chemokines,or the activation of autophagy or apoptosis to inhibit virus replication.In the case of RABV,the innate immune response is usually triggered when the skin or muscle is bitten or scratched.However,RABV has evolved many ways to escape or even hijack innate immune response to complete its own replication and eventually invades the central nervous system(CNS).Once RABV reaches the CNS,it cannot be wiped out by the immune system or any drugs.Therefore,a better understanding of the interplay between RABV and innate immu-nity is necessary to develop effective strategies to combat its infection.Here,we review the innate immune responses induced by RABV and illustrate the antagonism mechanisms of RABV to provide new insights for the control of rabies. | Haili Zhang Jingbo Huang Yumeng Song Xingqi Liu Meichen Qian Pei Huang Yuanyuan Li Ling Zhao Hualei Wang | 2022 | Animal Models and Experimental Medicine2022,5,5: | 2 |
| 13 | Identification of Oblate Band in Odd-odd ^(184)Au显示文摘The high-spin states in 184Au were populated by using the 159Tb( 29Si, 4ng) 184Au reaction at a bombarding energy of 140 MeV. The 29Si beam of 8 pnA was provided by the accelerator complex of the Tandem-XTU and ALPI at the Laroratori Nazionale di Legnero, Italy, and focussed onto a natural metallic 159Tb foil | Zhang Yuhu Wang Hualei G. de Angelis N. Maiginean A. Gadea D. R. Napoli M. Axiotis C. R.usu T. Martinez Zhou Xiaohong Fang Yongde Guo Wentao Liu Minliang Lei Xiangguo Guo Yingxiang | 2004 | 近代物理研究所和兰州重离子加速器实验室年报:英文版2004,,1: | 2 |
| 14 | Evidence for charge and spin density waves in single crystals of La_(3)Ni_(2)O_(7) and La_(3)Ni_(2)O_(6)显示文摘Charge and spin orders are intimately related to superconductivity in copper oxide superconductors.Elucidation of the competing orders in various nickel oxide compounds is crucial,given the fact that superconductivity has been discovered in Nd_(0.8)Sr_(0.2)NiO_(2)films.Herein,we report structural,electronic transport,magnetic,and thermodynamic characterizations of single crystals of La_(3)Ni_(2)O_(7)and La_(3)Ni_(2)O_(6).La_(3)Ni_(2)O_(7)is metallic with mixed Ni^(2+)and Ni^(3+)valent states.Resistivity measurements yield two transition-like kinks at~110 and 153 K.The kink at 153 K is further revealed from magnetization and specific heat measurements,indicative of the formation of charge and spin density waves.La_(3)Ni_(2)O_(6)single crystals obtained from the topochemical reduction of La_(3)Ni_(2)O_(7)are insulating and show an anomaly at~176 K on magnetic susceptibility.The transition-like behaviors of La_(3)Ni_(2)O_(7)and La_(3)Ni_(2)O_(6)are analogous to those observed in La_(4)Ni_(3)O_(10) and La_(4)Ni_(3)O_(8),suggesting that charge and spin density waves are a common feature in the ternary La-Ni-O system with mixed-valent states of nickel. | Zengjia Liu Hualei Sun Mengwu Huo Xiaoyan Ma Yi Ji Enkui Yi Lisi Li Hui Liu Jia Yu Ziyou Zhang Zhiqiang Chen Feixiang Liang Hongliang Dong Hanjie Guo Dingyong Zhong Bing Shen Shiliang Li Meng Wang | 2023 | Science China(Physics,Mechanics & Astronomy)2023,66,1: | 2 |
| 15 | Ubiquitination of SARS-CoV-2 ORF7a promotes antagonism of interferon response显示文摘Understanding interactions between the host and SARS-CoV-2 is essential for developing effective vaccines and therapeutics.Here,we report that SARS-CoV-2 usurps the host ubiquitin system to polyubiquitinate accessory protein ORF7a at Lys119.The 0RF7a polyubiquitination is primarily formed by K63-linked ubiquitin chains. | Zengguo Cao Hongjie Xia Ricardo Rajsbaum Xianzhu Xia Hualei Wang Pei-Yong Shi | 2021 | Cellular & Molecular Immunology2021,18,3: | 2 |
| 16 | Genetically engineered bacterial-like particles induced specific cellular and humoral immunity as effective tick-borne encephalitis virus vaccine显示文摘Tick-borne encephalitis(TBE)is a natural focal disease with fatal encephalitis induced by tick-borne encephalitis virus(TBEV),seriously threatening human and public health.Protection of TBE depends on vaccination with inactivated vaccine,which requires high cost and multiple immunizations.Here,we construct genetically engineered bacterial-like particles(BLPs)as an effective TBEV vaccine with simplified immunizations and improved immune efficacy.The TBEV BLPs involve the combination of the gram-positive enhancer matrix from Lactococcus lactis,and TBEV envelope(E)protein expressed by genetically engineered recombinant baculovirus.The prepared TBEV BLPs can effectively stimulate the activation of dendritic cells to present the TBEV E proteins to T and B cells,leading to strong and durable cellular and humoral immune responses in mice.Surprisingly,the serum levels of specific IgG antibodies in mice remain about 10^(6)at 6 months after the secondary immunization.Overall,the TBEV BLPs can be used as a potent vaccine candidate,laying the foundation for developing novel TBEV genetically engineered vaccines. | Mengyao Zhang Hongli Jin Yuanyuan Li Cuicui Jiao Pei Huang Yujie Bai Zhiyuan Gong Haili Zhang Shunjie Liu Hualei Wang | 2023 | Aggregate2023,4,3: | 1 |
| 17 | Rabies virus glycoprotein is an important determinant for the induction of innate immune responses and the pathogenic mechanisms显示文摘 | Zhang Hualei Wang Fazal Mahmooda | 2013 | 162 (2-4):601-6132013,162,24: | 1 |
| 18 | Fully conjugated tri(perylene bisimides):an approach to the construction of ntype graphene nanoribbons显示文摘 | Qian Hualei Negri F Wang Chunru | 2008 | J Am Chem Soc2008,130,17: | 1 |
| 19 | Molecular characterization and phylogenetic analysis of new Newcastle disease virus isolates from the mainland of China显示文摘 | Hualei Liu Zhiliang Wang Yangong Wu Yang Wu Chengying Sun Dongxia Zheng Tiangang Xu Jinming Li | 2008 | Research in Veterinary Science2008,,3: | 1 |
| 20 | Molecular epidemiological analysis of Newcastle disease virus isolated in China in 2005显示文摘 | Hualei Liu Zhiliang Wang Yangong Wu Dongxia Zheng Chengying Sun Daorong Bi Yuanyuan Zuo Tiangang Xu | 2006 | Journal of Virological Methods2006,,1: | 1 |