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Communications in Theoretical Physics 2008年第1期49卷 239-242页

作者： liu jing-jing luo zhi-quan Institute of Theoretical Physics China West Normal University Nanchong 637002 China

The electron capture of Gamow--Teller transition on iron group nuclei is investigated in a strong magnetic. field at the crusts of neutron stars. The results show that the magnetic field has only a slight effect on the electron capture rates with the range of the magnetic fields （10^9 - 10^13 G） on surfaces of most neutron stars, whereas for some magnetars whose range of the magnetic field is 10^13 - 10^18 G, the electron capture rates of most iron group nuclei would be debased greatly and may be even decreased overrun 3 orders of magnitude by the strong magnetic field.

关键词： strong magnetic field Gamow-Teller transition electron capture neutron star

Mesh-supported V2O5-WO3/TiO2 nanosheet array catalysts for efficient removal of NOx

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Tungsten 2025年第1期 100-111页

作者： zhi-Qi Zhang liu Yang Wen luo Vladimir An jing Li Bao-Dan liu School of Materials Science and Engineering Northeastern University Foshan Graduate School of Innovation Northeastern University Kizhner Research Center School of Advanced Manufacturing Technologies Tomsk Polytechnic University

The design and synthesis of vanadium-based denitration catalysts with low-temperature activity pose significant challenges in the field of toxic gas *** this study,we have developed a novel approach to fabricate highly efficient V2O5-WO3/TiO2monolithic mesh catalysts for NOxreduction at low ***,TiO2nanosheets with strong adhesion and large surface area were grown on Ti mesh using plasma electrolytic oxidation technology and hydrothermal ***,super-small traces of WO3and V2O5active nano-species were subsequently deposited on TiO2nanosheets using the deposition-precipitation *** to traditional ceramic-based V2O5-WO3/TiO2catalysts,our V2O5-WO3/TiO2monolithic mesh catalyst exhibits superior mechanical performance,excellent thermal conductivity,lower pressure drop,higher utilization of active components,and stronger synergistic ***,the V2O5-WO3/TiO2monolithic mesh catalysts exhibited excellent low-temperature catalytic activity with 98% of NOxconversion at 220℃,and remarkable long-term SO2tolerance and water resistance in the selective catalytic reduction（SCR） of NOxwith *** SCR reaction of tiny V2O5and WO3active species supported on TiO2nanosheets directly demonstrated to follow the Eley-Rideal mechanism by in situ infrared spectra.

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Effect of Quark Strong Interaction in Phase Transition on Supernova Explosion

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Communications in Theoretical Physics 2008年第6期49卷 1643-1648页

作者： LAI Xiang-Jun luo zhi-quan liu jing-jing liu Hong-Lin Institute of Theoretical Physics China West Normal University Nanchong 637002 China

The effect of quark interactions perturbatively to order αc on the conversion, from quark matter to strange quark matter, is studied systematically based on a recent set of current quark masses. The process has a significant effect on increasing the core temperature, the neutrino abundance and the neutrino energies even if there is no quark interaction. Furthermore, with the switch of the strong interaction among quarks, these quantities will increase respectively to some further extents with αc increase. Taking αc = 0.47 as an example, the temperature, the neutrino abundance and the total neutrino energies are further raised by about 10%, 7%, and 20% respectively, which is weakly dependent on the initial temperature. Combining the effect of the current quark mass and the effect of the quark strong interaction, the results of the conversions will greatly enhance the probability of success for a supernova explosion and deeply influence the dynamics of the supernova evolution.

关键词： supernova phase transitions quark interactions

Effect of Superstrong Magnetic Fields on Nuclear Energy Generation Rate in the Crust of Neutron Stars

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Communications in Theoretical Physics 2008年第4期49卷 1069-1072页

作者： liu Hong-Lin luo zhi-quan liu jing-jing LAI Xiang-Jun Institute of Theoretical Physics China West Normal University Nanchong 637002 China

This paper shows that superstrong magnetic fields （such as those of magnetars） can increase the energy generation rate many times in the crust of neutron stars. This result undoubtedly not only influences the coolin... 详细信息

关键词： superstrong magnetic fields energy generation rate neutron stars

Genome-wide patterns of large-size presence/absence variants in sorghum

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Journal of Integrative Plant Biology 2014年第1期56卷 24-37页

作者： Li-Min Zhang Hong luo zhi-quan liu Yi Zhao jing-Chu luo Dong-Yun Hao Hai-Chun jing The Key Laboratory of Plant Resources Institute of Botany The Chinese Academy of Sciences Key Laboratory for Molecular Enzymology and Engineering of the Ministry of Education Jilin University College of Life Sciences Peking University Institute of Agricultural Biotechnology Jilin Academy of Agricultural Sciences

The presence/absence variants （PAVs） are a major source of genome structural variation and have profound effects on phenotypic and genomic variation in animals and humans. However, little is understood about PAVs in plant genomes. Our previous resequencing effort on three sorghum （Sorghum bicolour L.） genomes, each 12？ coverage, uncovered 5 364 PAVs. Here, we report a detailed characterization of 51 large-size （＆gt;30 kb） PAVs. These PAVs spanned a total size of 2.92 Mb of the sorghum genome containing 202 known and predicted genes, including 38 genes annotated to encode celldeath and stress response genes. The PAVs varied considerably for repeat sequences and mobile elements with DNA trans-posons as the major components. The frequency and distribution of these PAVs differed substantial y across 96＆amp;nbsp;sorghum inbred lines, and the low-and high frequency PAVs differed in their gene categories. This report shed new light on the occurrence and diversity of PAVs in sorghum genomes. Our research exemplifies a new perspective to explore genome structural variation for genetic improvement in plant breeding.

关键词： Breeding genetic diversity genomics presence/absencevariants Sorghum bicolour

Strengthening absorption ability of Co-N-C as efficient bifunctional oxygen catalyst by modulating the d band center using MoC

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Green Energy & Environment 2023年第2期8卷 459-469页

作者： Jianwen liu Ying Guo Xian-Zhu Fu jing-Li luo Chunyi zhi Shenzhen Key Laboratory of Polymer Science and Technology Guangdong Research Center for Interfacial Engineering of Functional MaterialsCollege of Materials Science and EngineeringShenzhen University518060China Department of Materials Science and Engineering City University of Hong Kong83 Tat Chee AvenueKowloon TongHong KongChina Department of Chemical and Materials Engineering University of AlbertaEdmontonAlbertaT6G 1H9Canada

Co-N-C is a promising oxygen electrochemical catalyst due to its high stability and good ***,due to the limited adsorption ability improvement for oxygen-containing intermediates,it usually exhibits inadequate catalytic activity with 2-electron pathway and high selectivity of hydrogen ***,the adsorption of Co-N-C to these intermediates is modulated by constructing heterostructures using transition metals and their derivatives based on d-band *** heterostructured nanobelts with MoC core and pomegranate-like carbon shell consisting of Co nanoparticles and N dopant(MoC/Co-N-C)are engineered to successfully modulate the d band center of active Co-N-C sites,resulting in a remarkably enhanced electrocatalysis *** optimally performing MoC/Co-N-C exhibits outstanding bi-catalytic activity and stability for the oxygen electrochemistry,featuring a high wave-half potential of 0.865 V for the oxygen reduction reaction(ORR)and low overpotential of 370 mV for the oxygen evolution reaction(OER)at 10 mA cm^(-2).The zinc air batteries with the MoC/Co-N-C catalyst demonstrate a large power density of 180 mW cm^(-2)and a long cycling lifespan(2000 cycles).The density functional theory calculations with Hubbard correction(DFT+U)reveal the electron transferring from Co to Mo atoms that effectively modulate the d band center of the active Co sites and achieve optimum adsorption ability with"single site double adsorption"mode.

关键词： Bifunctional oxygen catalysts Pomegranate-like shell D band theory Enhanced synergistic effect Rechargeable zinc air battery

Magnetic Field Effect on β^＋ Decay in the Crusts of Accreting Neutron Stars

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Communications in Theoretical Physics 2007年第4期47卷 765-768页

作者： ZHANG Jie liu Men-quan luo zhi-quan Institute of Physics and Electron Information China West Normal University Nanchong 637002 China

Based on shell model of nuclei, the influence of a high magnetic field on β^＋ decay in the crusts of accreting neutron stars is analyzed. The magnetic field effect on 54 Mn is discussed. The results show that a weak magnetic field makes little effect on β^＋ decay but a strong magnetic field （B 〉 10^11 G） improves β^＋ decay rates obviously. The conclusion derived will benefit to develop further research on nuclear astrophysics in the future.

关键词： β^+ decay strong magnetic field neutron star

A robust and unique approach for tuning the energy level of Ag_(2)Se quantum dots via“on-surface”manipulation of nitrogencontaining groups of surface-coordinated ligands

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Nano Research 2023年第11期16卷 12608-12617页

作者： Meng-Yao luo Bo Tang An-An liu jing-Ya Zhao zhi-Ling Zhang Dai-Wen Pang The Institute for Advanced Studies and College of Chemistry and Molecular Sciences Wuhan UniversityWuhan 430072China State Key Laboratory of Medicinal Chemical Biology Tianjin Key Laboratory of Biosensing and Molecular RecognitionFrontiers Science Center for New Organic MatterResearch Center for Analytical SciencesCollege of ChemistryFrontiers Science Center for Cell ResponsesNankai UniversityTianjin 300071China Haihe Laboratory of Sustainable Chemical Transformations Tianjin 300192China

Effects of surface chemistry on energy levels or optical properties of semiconductor nanocrystals have attracted considerable attention and show great promise in broad ***,it remains challenging to controllably tune the photoluminescence(PL)of quantum dots(QDs)by manipulating surface ***,we investigated effects of the ligand,glutathione(GSH),on PL properties of near-infrared(NIR)Ag_(2)Se QDs by“on-surface”manipulation,that is,precisely manipulating the chelating group without dissociating the ligand from the *** anchoring of the amino group was found to be controlled by solution pH,whereas the binding of the thiol group to the Ag+was pH independent,maintaining the“on-surface”state of *** tuning the pH-controlled binding of amino groups,the energy level or the bandgap of Ag2Se QDs could be increased by up to 140 *** increased bandgap resulted in the blueshift of PL spectrum,which could be reversibly tuned by up to 75 *** pH-mediated tunable PL properties of QDs could also be extended to other nitrogen-containing pH-sensitive groups which could coordinate to the Ag+,not limited to the amino *** work would facilitate the study of nanocrystal surface chemistry and our model that the binding of amino groups affected energy levels of Ag2Se QDs might facilitate new insights into the electronic structure and energy level of other QD-ligand complexes.

关键词： quantum dot(QD) surface chemistry ligand energy level pH

Constructing dual-functional porphyrin-based thorium metal-organic framework toward photocatalytic uranium(Ⅵ)reduction integrated with organic oxidation

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Science China Chemistry 2022年第8期65卷 1544-1551页

作者： zhi Gao Yue Wang Yuzhi Lin zhijian Zheng Yao liu Qiqi jing Feng luo Jiangxi Province Key Laboratory of Synthetic Chemistry East China University of TechnologyNanchang 330013China

The rational fabrication of photocatalysts with dual functions upon visible light, such as photocatalytic radioactive U(Ⅵ)reduction and value-added organic oxidation, is highly desirable but remains huge challenge. Here, we couple the photocatalytic U(Ⅵ) reduction with the oxidative organic synthesis to one system using novel extended π-conjugated framework(Cu@ThTCPP) without the expense of sacrificial reagents. Noticeably, the as-prepared Cu@Th-TCPP linked by tetratopic tetrakis(4-carboxyphenyl)porphyrin(TCPP) ligand and unique Th(μ-O)(HCOO)(HO)secondary building unit(SBU) exhibits significantly enhanced activity when the photocatalytic U(Ⅵ) reduction and thioanisole oxidation were integrated to one *** experimental characterizations demonstrate that the highly conjugated framework of Cu@Th-TCPP is good for the charge transfer and separation, while incorporating Cusite further accelerates the charge-carrier dynamics, thus giving rise to the dual-functional property. Apparently, this strategy conforms to atomic economy, opens a new horizon to address radioactive environmental pollution in natural water systems and soils, and simultaneously produces valuable chemicals.

关键词： radioactive U(Ⅵ)reduction oxidative organic synthesis charge separation dual-functional Th-MOF photocatalysis

Prognostic value of T cell immunoglobulin and mucin-domain containing-3 expression in upper gastrointestinal tract tumors:A meta-analysis

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World Journal of Gastrointestinal Oncology 2023年第12期15卷 2212-2224页

作者： jing-jing Yan Bing-Bing liu Yan Yang Meng-Ru liu Han Wang Zhen-quan Deng zhi-Wei Zhang College of Clinical Medicine Hebei University of EngineeringHandan 056000Hebei ProvinceChina Department of Oncology Handan First HospitalHandan 056002Hebei ProvinceChina Department of Oncology Affiliated Hospital of Hebei University of EngineeringHandan 056000Hebei ProvinceChina

BACKGROUND There is a lack of robust prognostic markers for upper gastrointestinal(GI)tract cancers,including esophageal,gastric,and esophagogastric junction cancers.T cell immunoglobulin and mucin-domain containing-3(TIM3)plays a key immunomodulatory role and is linked to the prognosis of various ***,the significance of TIM3 in upper GI tract tumors is still *** To investigate the prognostic value of TIM3 expression in upper GI tract *** A literature search was conducted on the PubMed,Embase,and Web of Science databases for relevant studies published until June *** screening and quality assessment,studies that met the criteria were included in the *** methods were used for the pooled analysis to assess the association of TIM3 expression in upper GI tract tumors with the prognosis and clinicopathological *** results were reported with the hazard ratio(HR)and 95%confidence interval(CI).RESULTS Nine studies involving 2556 patients with upper GI tract cancer were *** TIM3 expression was associated with a worse prognosis in upper GI tract cancer(HR:1.17,95%CI:1.01-1.36).Positive expression of TIM3 in gastric cancer was correlated with the T and N stage,but the difference was not statistically ***,TIM3 overexpression was significantly correlated with the TNM stage(odds ratio:1.21,95%CI:0.63-2.33;P<0.05).TIM3 expression showed no association with the other clinicopathological *** High expression of TIM3 in the upper GI tract cancer is associated with a worse prognosis and advanced T or N stages,indicating its potential value as a prognostic *** findings may provide a basis for the personalized treatment of upper GI tract cancers.

关键词： Immune checkpoint T cell immunoglobulin-3 Upper gastrointestinal tract cancer Overall survival Clinicopathological features