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Determining the contribution of Mo single atoms components in MoO_(2)nanocatalyst in transfer hydrogenation

Nano Research 2023年第2期16卷 2302-2310页

作者： Ze-Nan hu Yongjian Ai Yan Zhao Yiming Wang Kelong Ding Wenhui Zhang Rongxiu Guo Xinyue Zhang Xiangbin cai Ning Wang Jianshe hu Qionglin Liang hongyang Liu Fei huang Limin Wu Jiangwei Zhang hong-bin Sun School of Environmental Engineering and Chemistry Luoyang Institute of Science and TechnologyLuoyang 471023China Department of Chemistry Northeastern UniversityShenyang 110819China MOE Key Laboratory of bioorganic Phosphorus Chemistry&Chemical biology Beijing Key Lab of Microanalytical Methods&InstrumentationDepartment of ChemistryCenter for Synthetic and Systems BiologyTsinghua UniversityBeijing 100084China College of Energy Material and Chemistry Inner Mongolia UniversityHohhot 010021China Department of Physics and Center for Quantum Materials Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong SARChina Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

Nanocatalysts are likely to contain undetected single-atom components,which may have been ignored but have significant effect in catalytic ***,we report a catalyst composed of Mo single atoms(SAs)and MoO_(2)nanoparticles(NPs)(MoSAs-MoO_(2)@NC),which is an exact model to understand how the SAs contribute to the *** experimental results and the density functional theory calculations reveal that Mo SAs on nitrogen-doped carbon provides the reaction zone for nitro reduction,while MoO_(2)is the active site for decomposing hydrazine hydrate to produce h*.Thanks to the synergy between Mo SAs and MoO_(2)NPs,this catalyst exhibits noble metal-like catalytic activity(100%conversion at 4 min)for the dechlorination-proof transfer ***,the hydrogen migration on the catalyst is verified by the electrochemical tests in the absence of a hydrogen *** work provides a model for further study on the coexistence of single atoms in nanoparticle catalysts.

关键词： synergistic effect Mo single atoms MoO_(2)nanocatalyst transfer hydrogenation nitroarenes

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Search for electron-antineutrinos associated with gravitational-wave events GW150914,GW151012,GW151226,GW170104,GW170608,GW170814,and GW170817 at Daya bay

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Chinese Physics C 2021年第5期45卷 190-201页

作者： F.P.An A.b.balantekin h.R.band M.bishai S.blyth G.F.Cao J.Cao J.F.Chang Y.Chang h.S.Chen S.M.Chen Y.Chen Y.X.Chen J.Cheng Z.K.Cheng J.J.Cherwinka M.C.Chu J.P.Cummings O.Dalager F.S.Deng Y.Y.Ding M.V.Diwan T.Dohnal J.Dove M.Dvorak D.A.Dwyer J.P.Gallo M.Gonchar G.h.Gong h.Gong W.Q.Gu J.Y.Guo L.Guo X.h.Guo Y.h.Guo Z.Guo R.W.hackenburg S.hans M.he K.M.heeger Y.K.heng A.higuera Y.K.hor Y.b.hsiung b.Z.hu J.R.hu T.hu Z.J.hu h.X.huang X.T.huang Y.b.huang P.huber D.E.Jaffe K.L.Jen X.L.Ji X.P.Ji R.A.Johnson D.Jones L.Kang S.h.Kettell S.Kohn M.Kramer T.J.Langford J.Lee J.h.C.Lee R.T.Lei R.Leitner J.K.C.Leung F.Li J.J.Li Q.J.Li S.Li S.C.Li W.D.Li X.N.Li X.Q.Li Y.F.Li Z.b.Li h.Liang C.J.Lin G.L.Lin S.Lin J.J.Ling J.M.Link L.Littenberg b.R.Littlejohn J.C.Liu J.L.Liu C.Lu h.Q.Lu J.S.Lu K.b.Luk X.b.Ma X.Y.Ma Y.Q.Ma C.Marshall D.A.Martinez caicedo K.T.MeDonald R.D.McKeown Y.Meng J.Napolitano D.Naumov E.Naumova J.P.Ochoa-Ricoux A.OIshevskiy h.-R.Pan J.Park S.Patton J.C.Peng C.S.J.Pun F.Z.Qi M.Qi X.Qian N.Raper J.Ren C.Morales Reveco R.Rosero b.Roskovec X.C.Ruan h.Steiner J.L.Sun T.Tmej K.Treskov W.-h.Tse C.E.Tull b.Viren V.Vorobel C.h.Wang J.Wang M.Wang N.Y.Wang R.G.Wang W.Wang W.Wang X.Wang Y.Wang Y.F.Wang Z.Wang Z.Wang Z.M.Wang h.Y.Wei L.h.Wei L.J.Wen K.Whisnant C.G.White h.L.h.Wong E.Worcester D.R.Wu F.L.Wu Q.Wu W.J.Wu D.M.Xia Z.Q.Xie Z.Z.Xing J.L.Xu T.Xu T.Xue C.G.Yang L.Yang Y.Z.Yang h.F.Yao M.Ye M.Yeh b.L.Young h.Z.Yu Z.Y.Yu b.b.Yue S.Zeng Y.Zeng L.Zhan C.Zhang F.Y.Zhang h.h.Zhang J.W.Zhang Q.M.Zhang X.T.Zhang Y.M.Zhang Y.X.Zhang Y.Y.Zhang Z.J.Zhang Z.P.Zhang Z.Y.Zhang J.Zhao L.Zhou h.L.Zhuang J.h.Zou Instiute of Modern Physics East China University of Science and TechnologyShanghai 200237 University of Wisconsin MadisonWisconsin 53706 Wright Laboratory and Department of Physics Yale UniversityNew HavenConnecticut 06520 brookhaven National Laboratory UptonNew York 11973 Department of Physics National Taiwan UniversityTaipei Institute of high Energy Physics Beijing 100049 National United University Miao-Li Department of Engineering Physics Tsinghua UniversityBejing 100084 Shenzhen University Shenzhen 518060 Sun Yat-Sen(Zhongshan)University Guangzhou North China Electric Power University Bejjing 102206 Chinese University of hong Kong Hong Kong 999077 Siena College LoudonvilleNew York 12211 Department of Physics and Astronomy University of CaliforniaIrvineCaliformia 92697 University of Science and Technology of China Hefei 230026 Charles University Faculty of Mathematics and PhysicsPrague Department of Physics University of llinois at Urbana-ChampaignUrbanaIlinois 61801 Lawrence berkeley National Laboratory BerkeleyCalifornia 94720 Department of Physics Illinois Institute of TechnologyChicagoIllinois 60616 Joint Institute for Nuclear Research DubnaMoscow Region beijing Normal University Beijing 100875 Department of Nuclear Science and Technology School of Energy and Power EngineeringXi'an Jiaotong UniversityXi'an 710049 Department of Physics University of HoustonHoustonTexas 77204 China Institute of Atomic Energy Beijing 102413 Shandong University Jinan 250100 Guangxi University Nanning 530004 Center for Neutrino Physics Virginia TechBlacksburgVirginia 24061 Institute of Physics National Chiao-Tung UniversityHsinchu Department of Physics University of CincinnatiCincinnatiOhio 45221 Department of Physies Collge of Science and TechnologyTemple UniversityPhiladelphiaPennsylvania 19122 Dongguan University of Technology Dongguan 523808 Department of Physics University of CaliforniaBerkeleyCalifornia 94720 Department of Physics The University of Hong KongPokfulamHong Kong 999077 School

The establishment of a possible connection between neutrino emission and gravitational-wave(GW)bursts is important to our understanding of the physical processes that occur when black holes or neutron stars *** the Daya bay experiment,using the data collected from December 2011 to August 2017,a search was per-formed for electron-antineutrino signals that coincided with detected GW events,including GW150914,GW151012,GW151226,GW170104,GW170608,GW 170814,and GW *** used three time windows of±10,±500,and±1000 s relative to the occurrence of the GW events and a neutrino energy range of 1.8 to 100 MeV to search for correlated neutrino *** detected electron-antineutrino candidates were consistent with the expected background rates for all the three time *** monochromatic spectra,we found upper limits(90%confidence level)of the electron-antineutrino fluence of(1.13-2.44)×10^(11)cm^(-2)at 5 MeV to 8.0×10^(7)cm^(-2)at 100 MeV for the three time w *** the assumption of a Fermi-Dirac spectrum,the upper limits were found to be(5.4-7.0)×10^(9)cm^(2)for the three time windows.

关键词： grav itational waves electron-antineutrinos fluence upper limit

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Simulation of rainfall-underground outflow responses of a karstic watershed in Southwest China with an artificial neural network

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Water Science and Engineering 2008年第2期1卷 1-9页

作者： Chen Xi Chen cai hao Qingqing Zhang Zhicai Shi Peng State Key Laboratory of hydrology-Water Resources and hydraulic Engineering Hohai University Nanjing210098 P. R. China

Karstic aquifers in Southwest China are largely located in mountainous areas and groundwater level observation data are usually absent. Therefore, numerical groundwater models are inappropriate for simulation of groundwater flow and rainfall-underground outflow responses. In this study, an artificial neural network （ANN） model was developed to simulate underground stream discharge. The ANN model was applied to the houzhai subterranean drainage in Guizhou Province of Southwest China, which is representative of karstic geomorphology in the humid areas of China. Correlation analysis between daily rainfall and the outflow series was used to determine the model inputs and time lags. The ANN model was trained using an error backpropagation algorithm and validated at three hydrological stations with different karstic features. Study results show that the ANN model performs well in the modeling of highly non-linear karstic aquifers.

关键词： karst underground channel correlation analysis artificial neural network

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Genome-wide mapping for low kernel polyphenol oxidase loci in wheat germplasm "IDO580-21"

Genome-wide mapping for low kernel polyphenol oxidase loci i...

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第十届全国小麦基因组学及分子育种大会

作者： Jin cai Shibin cai Jishu Yang Qiaofeng Zhang bisheng Fu Wei Guo Ying Liu Wenling Zhai Xiaoyou Wu Jizhong Wu Institute of Germplasm Resources and biotechnology Jiangsu Academy of Agricultural Sciences College of Agronomy Nanjing Agricultural University

Whiteness is one of the most important quality traits for wheat flour and its *** oxidase(PPO) is a major factor that causes browning of wheat flour and its ***,to develop new variety with blight whiteness,we have to screen elite germplasms with low PPO activity and to explore its new genes of low PPO ***580-21 is a hard spring wheat showed near null levels of seed PPO *** map the quantitative trait loci(QTL) for low PPO activity and identify markers tightly linked to them in IDO580-21,a population of 111 recombinant inbred lines(RILs) from a cross between IDO580-21 and Yangmail58,a cultivar with high PPO activity,was genotyped using simple sequence repeats(SSRs) and single-nucleotide polymorphisms(SNPs) derived from 55 K SNP *** activity in the RILs was determined in three field experiments and one greenhouse *** QTL for low PPO activity were mapped on six chromosomes(2 A,2 D,5 D,3 A,6 A,7 b).Among them,the QTL mapped on 5 DL(QPpoDO580 D) was a novel QTL with large and stable effect,which explained 7.6～26.2% of phenotypic variations across the four ***580 5 D was mapped between SNP markers AX-SNP1799 and AX-SNP4585 with the genetic distance of 2.2 cM,and the physical distance of 62 *** SNPs linked to the QTLs on chromosomes 2 A,2 D,and 5 D were converted into Kbioscience competitive allele-specific PCR(KASP) assays,which can be used for marker-assisted selection(MAS)

关键词： QTL for low polyphenol oxidase activity Triticum aestivum L. 55K SNP chip KASP

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军用机场飞机噪声主观烦恼度研究

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环境科学与技术 2008年第9期31卷 50-52,137页

作者：焦鹏蔡良才空军工程大学工程学院机场建筑工程系陕西西安710038

为了更全面的了解和反映飞机噪声对机场工作人员的影响情况,在A、b、C、D四个军用机场进行了飞机噪声现场测试和工作人员主管烦恼度的问卷调查,通过调研数据分析了飞机噪声对机场内部人员的影响情况。

关键词：军用机场飞机噪声主观烦恼度

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Effects of 1,2,4-Trichlorobenzene and Mercury Ion Stress on Ca^2+ Fluxion and Protein Phosphorylation in Rice

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Rice science 2007年第4期14卷 272-282页

作者： GE cai-lin WANG Ze-gang WAN Ding-zhen DING Yan WANG Yu-long ShANG Qi LUO Shi-shi MA Fei Jiangsu Provincial Key Laboratory of Crop Genetics and Physiology Yangzhou University Yangzhou 225009 China

The effects of 5 mg/L 1,2,4-trichlorobenzene （TCb） and 0.1 mmol/L mercury ion （hg^2＋） stresses on Ca^2＋ fluxion and protein phosphorylation in rice seedlings were investigated by isotope exchange kinetics and in vitro phosphorylation assay. The Ca^2＋ absorption in rice leaves and Ca^2＋ transportation from roots to leaves were promoted significantly in response to hg^2＋ and TCb treatments for 4-48 h. The Ca^2＋ absorption peaks presented in the leaves when the rice seedlings were exposed to hg^2＋ for 8-12 h or to TCb for 12-24 h. Several Ca^2＋ absorption peaks presented in the roots during rice seedlings being exposed to hg^2＋ and TCb, and the first Ca^2＋ absorption peak was at 8 h after being exposed to hg^2＋ and TCb The result of isotope exchange kinetic analysis confirmed that short-term （8 h） hg^2＋ and TCb stresses caused Ca^2＋ channels or pumps located on plasmalemma to open transiently. The phosphorylation assay showed that short-term TCb stress enhanced protein phosphorylation in rice roots （TCb treatment for 4-8 h） and leaves （TCb treatment for 4-24 h）, and short-term （4-8 h） hg^2＋ stress also enhanced protein phosphorylation in rice leaves. The enhancement of protein phosphorylation in both roots and leaves corresponded with the first Ca^2＋ absorption peak, which confirmed that the enhancement of protein phosphorylation caused by TCb or hg^2＋ stress might be partly triggered by the increases of cytosolic calcium. TCb treatment over 12 h inhibited protein phosphorylation in rice roots, which might be partly due to that TCb stress suppressed the protein kinase activity. Whereas, hg^2＋ treatment inhibited protein phosphorylation in rice roots, and hg^2＋ treatment over 12 h inhibited protein phosphorylation in rice leaves. This might be attributed to that not only the protein kinase activity, but also the expressions of phosphorylation proteins were restrained by hg^2＋ stress.

关键词： rice mercury ion 1,2,4-trichlorobenzene calcium ion fluxion protein phosphorylation

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Generalized Central Factorial Numbers with Odd Arguments

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Open Journal of Modelling and Simulation 2020年第3期8卷 61-72页

作者： Youmna h. Zaid F. A. Shiha b. S. El-Desouky Department of Mathematics Faculty of Science Mansoura University Mansoura Egypt

In this paper, we consider r-generalization of the central factorial numbers with odd arguments of the first and second kind. Mainly, we obtain various identities and properties related to these numbers. Matrix representation and the relation between these numbers and Pascal matrix are given. Furthermore, the distributions of the signless r-central factorial numbers are derived. In addition, connections between these numbers and the Legendre-Stirling numbers are given.

关键词： Generalized Central Factorial Numbers with Odd Arguments Pascal Matrix Legendre-Stirling Numbers

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Ground-borne vibration generated by high-speed train viaduct systems in soft-upper/hard-lower rock strata

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Journal of Central South University 2021年第7期28卷 2140-2157页

作者： XING Meng-ting WANG Ping ZhAO cai-you WU Xue KANG Xiu-shan Key Laboratory of high-Speed Railway Engineering(Ministry of Education) Southwest Jiaotong UniversityChengdu 610031China School of Civil Engineering Southwest Jiaotong UniversityChengdu 610031China China Construction Third Engineering bureau Co.Ltd Wuhan 430000China

An experimental study and theoretical analysis were carried out to explore the ground-borne vibration generated by elevated high-speed railway in rock *** a typical rail line constructed on rock area in China as the research object,a set of field tests was performed on Rizhao-Lankao high-Speed Railway,the bridge and ground vibrations were measured as trains passed at 330−340 km/h,then the transferring law and spatial distribution under individual frequencies were *** experiment results indicate that the bridge frequency spectrum exhibited relatively high-frequency vibration peaks caused by short-wavelength irregularity;ground vibration farther than 30 m away can be amplified with a higher frequency and numerous ***,the wave propagation equation of a stratified rock strata was established based on direct-stiffness method to explore the vibration attenuation rules via frequency-domain *** is found that the rock area has a weaker correlation between vibration transmissibility and frequency,thicker and harder rock strata loss their vibration attenuation *** can be concluded that the high-speed railways induced vibration on rock strata shows a wide frequency band and large amplitude,the design of reducing vibration aimed at specific frequency is important according to next more detailed numerical study.

关键词： rock stratum vibration and wave elevated high-speed railways in situ test transferring law

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ChARGE TRANSFER AND DIELECTRIC PROPERTIES OF TiO_(2)-GRAPhENE COMPOSITES

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Journal of Advanced Dielectrics 2012年第1期2卷 71-77页

作者： cai-hUA ZhOU QIAN XU ShENG-TAO LI XIANG ZhAO Institute of Chemical Physics and Department of Chemistry State Key Laboratory of Electrical Insulation and Power Equipment Xi'an Jiaotong University Xi'an 710049P.R.China

The electronic structures and dielectric properties of TiO_(2)-graphene composites are studied using pseudo-potential density functional *** is shown that interfacial charge transfer properties of graphene/TiO_(2)are influenced by the atomic type on TiO_(2)*** interfacial interaction of graphene with Ti-terminated surface is so strong that it causes a buckling structural graphene,and the titanium atomic d electrons are transferred obviously from TiO_(2)to *** is revealed that dielectric properties of the composites are greatly affected by both band structures and electronic *** with bulk TiO_(2),dielectric constants of TiO_(2)-graphene composites are significantly improved.

关键词： TiO_(2)-graphene composite dielectric function charge transfer first principle

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Intra-arterial thrombolytics during endovascular thrombectomy for acute ischaemic stroke in the MR CLEAN Registry

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Stroke & Vascular Neurology 2023年第1期8卷 17-25页

作者： Sabine L Collette Reinoud P h bokkers Aryan Mazuri Geert J LycklamaàNijeholt Robert J van Oostenbrugge Natalie E LeCouffe Faysal benali Charles b L M Majoie Jan Cees de Groot Gert Jan R Luijckx Maarten Uyttenboogaart 无 Department of Radiology Medical Imaging CentreUniversity Medical Centre GroningenUniversity of GroningenGroningenthe Netherlands Department of Radiology Haaglanden Medical CentreThe Haguethe Netherlands Department of Neurology Cardiovascular Research Institute Maastricht(CARIM)Maastricht University Medical CentreMaastrichtthe Netherlands Department of Neurology Amsterdam UMCUniversity of AmsterdamAmsterdam NeuroscienceAmsterdamthe Netherlands Department of Radiology Maastricht University Medical CentreMaastrichtthe Netherlands Department of Radiology and Nuclear Medicine Amsterdam UMCUniversity of AmsterdamAmsterdam NeuroscienceAmsterdamthe Netherlands Department of Neurology University Medical Centre GroningenUniversity of GroningenGroningenthe Netherlands On behalf of the MR CLEAN Registry investigators

Introduction The efficacy and safety of local intra-arterial(IA)thrombolytics during endovascular thrombectomy(EVT)for large-vessel occlusions is *** analysed how often IA thrombolytics were administered in the Multicenter Randomized Clinical Trial of Endovascular Treatment for Acute Ischemic Stroke in the Netherlands(MR CLEAN)Registry,whether it was associated with improved functional outcome and assessed technical and safety outcomes compared with EVT without IA *** In this observational study,we included patients undergoing EVT for an acute ischaemic stroke in the anterior circulation from the MR CLEAN Registry(March 2014-November 2017).The primary endpoint was favourable functional outcome,defined as an modified Rankin Scale score≤2 at 90 *** endpoints were reperfusion status,early neurological recovery and symptomatic intracranial haemorrhage(sICh).Subgroup analyses for IA thrombolytics as primary versus adjuvant revascularisation attempt were *** Of the 2263 included patients,95(4.2%)received IA thrombolytics during *** IA thrombolytics administered were urokinase(median dose,250000 IU(IQR,193750-250000))or alteplase(median dose,20 mg(IQR,12-20)).No association was found between IA thrombolytics and favourable functional outcome(adjusted OR(aOR),1.16;95%CI 0.71 to 1.90).Successful reperfusion was less often observed in those patients treated with IA thrombolytics(aOR,0.57;95%CI 0.36 to 0.90).The odds of sICh(aOR,0.82;95%CI 0.32 to 2.10)and early neurological recovery were comparable between patients treated with and without IA *** primary and adjuvant revascularisation attempts,IA thrombolytics were more often administered for proximal than for distal *** outcomes were comparable for patients receiving IA thrombolytics as a primary versus adjuvant revascularisation *** Local IA thrombolytics were rarely used in the MR CLEAN *** the relatively small st

关键词： arterial throm acute

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