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Temperature dependence of the excitonic spectra of monolayer transition metal dichalcogenides

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Frontiers of physics 2018年第4期13卷 139-143页

作者： Zi-Wu Wang run-ze li Xi-Ying Dong Yao Xiao Zhi-Qing li Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology Department of Physics Tianjin University Tianjin 300354 China

We theoretically study the temperature dependence of the excitonic spectra of monolayer transitionmetal dichaleogenides using the O＇Donnell equation, Eg（T） = Eg（0） - S〈hω〉[coth（〈hω〉/2kBT- 1）]. We develop a theoretical model for the quantitative estimation of the Huang-Rhys factor S and averagephonon energy （hω） based on exciton coupling with longitudinal optical and acoustic phonons in the Frohlich and deformation potential mechanisms, respectively. We present reasonable explanations for the fitted values of the Huang-Rhys factor and average phonon energy adopted in experiments. Com- parison with experimental results reveals that the temperature dependence of the peak position in the excitonic spectra can be well reproduced by modulating the polarization parameter and deformation potential constant.

关键词： transition metal dichalcogenides exciton Huang-Rhys factor

Roles of Serum Amyloid A 1 Protein Isoforms in Rheumatoid Arthritis

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Engineering 2022年第3期8卷 174-182页

作者： Elaine Laihan Leung Huan-ling Lai run-ze li Hu-Dan Pan ze-Bo Jiang Ying li Fu-Gang Duan Jia-Hui Xu Yi-Zhong Zhang A-Xi Shi Chun-li Wei Fang-Yuan Zhang Xiao-Jun Yao liang liu State Key Laboratory of Quality Research in Chinese Medicine&Macao Institute for Applied Research in Medicine and Health&Faculty of Chinese Medicine Macao University of Science and TechnologyMacao 999078China Department of Pediatrics Pennsylvania State University College of MedicineHersheyPA 17033USA

Secondary amyloid A amyloidosis,a lethal complication,is induced when acute or chronic infection coexists with over-secretion of the serum amyloid A 1(SAA1)protein and deposition in key internal ***,using the whole-exome sequencing method,we identified a novel deleterious mutation SAA1.2 in rheumatoid arthritis(RA)***,the role of SAA1 in RA pathogenesis and its complications remains *** purpose of this study was to determine the pathogenetic roles of SAA1 protein isoforms in RA *** modified an experimental adenovirus infection protocol to introduce SAA1.2 gene alleles into the knee joints of mice and used SAA1.3 and SAA1.5 as *** tomography analysis was applied to determine changes in bone morphology and ***(IHC)analysis,flow cytometry,enzyme-linked immunosorbent assay(EliSA),and real-time polymerase chain reaction(RT-PCR)were used to investigate disease progression and cytokine alterations in the course of adenoviral SAA-induced knee joint inflammation and bone *** found that the arthritis-inducing effect of SAA1.2 transcription in the knee joints and mutant SAA1 protein secretion in blood resulted in the stimulation of immune responses,leading to CD8^(+)T cell and pro-inflammatory cytokine elevation,such as interleukin(IL)-6,IL-22,matrix metalloproteinase(MMP)-3,MMP-9,with subsequent synovial inflammation and bone *** findings indicate that SAA1 protein isoforms,particularly SAA1.2,play a significant role in the induction and progression of RA and may have potential value in the early diagnosis and severity prediction of RA.

关键词： Serum amyloid A 1 Rheumatoid arthritis Pathogenetic Intra-articular

Study on the dithiocarbamates with anticancer activityⅢ:Novel 4-Anilinoquinazolin-6-methylaminocarbodithioates as potent EGFR/ErbB2 dual inhibitors

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Study on the dithiocarbamates with anticancer activityⅢ:Nov...

Wiltse入路经伤椎固定与跨伤椎固定治疗胸腰段爆裂骨折的疗效比较

2011年全国药物化学学术会议——药物的源头创新

作者： Ri-Dong li,Xin Zhang,Peng liu,Qi Sun,run-Tao li~*,ze-Mei Ge~* State Key Laboratory of Natural and Biomimetic Drugs,School of Pharmaceutical Sciences, Peking University,38 Xueyuan Road,Beijing 100191,PR China

＜正＞Combining the SAR of quinazoline-based EGFR inhibitors and the research progress of dithiocarbamic acid esters,two series of 4-anilinoquinazolines and 4-anilinoquinoline-3-carbonitriles combined with various dit...

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临床骨科杂志 2018年第4期21卷 409-412页

作者：宣涛余润泽申才良于水李勇安徽省第二人民医院脊柱外科安徽合肥230041 安徽医科大学第一附属医院脊柱外科安徽合肥230022

目的比较Wiltse入路经伤椎固定与跨伤椎固定治疗胸腰段爆裂骨折的临床疗效。方法对42例无神经损伤的胸腰椎爆裂骨折患者分别采用Wiltse入路跨伤椎4钉固定(A组,20例)与经伤椎单平面螺钉固定(B组,22例),观察两组手术时间、术中出血量、术... 详细信息

目的比较Wiltse入路经伤椎固定与跨伤椎固定治疗胸腰段爆裂骨折的临床疗效。方法对42例无神经损伤的胸腰椎爆裂骨折患者分别采用Wiltse入路跨伤椎4钉固定(A组,20例)与经伤椎单平面螺钉固定(B组,22例),观察两组手术时间、术中出血量、术后伤椎前缘高度比、矢状面Cobb角等指标。结果 A组随访12～18个月,B组随访12～16个月。两组手术时间、术中出血量比较差异均无统计学意义(P>0.05)。伤椎前缘高度比及矢状面Cobb角:两组术后1周、12个月与术前相比均改善明显(P0.05);术后12个月与术后1周相比,A组差异有统计学意义(P0.05);术后12个月伤椎前缘高度比及矢状面Cobb角维持B组优于A组(P<0.05)。结论Wiltse入路经伤椎单平面螺钉固定治疗胸腰段爆裂骨折创伤小、恢复快,较之跨伤椎4钉固定能更好地维持骨折的复位效果。

关键词： Wiltse入路胸腰椎爆裂骨折伤椎单平面螺钉

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自动跟踪型独立式光伏扬水系统的设计与实现

仪表技术 2017年第4期 25-27页

作者：郑润泽李辉陈彬徐施博邵阳学院电气工程系湖南邵阳422000

为了解决农业生产过程中水资源短缺的问题,提出利用光生伏打效应,结合太阳能跟踪控制技术、最大功率点跟踪技术,介绍了一种自动跟踪型独立式光伏扬水系统。基于光电跟踪原理,光敏电阻阵列检测太阳光信号以实现太阳能自动跟踪;基于超声... 详细信息

为了解决农业生产过程中水资源短缺的问题,提出利用光生伏打效应,结合太阳能跟踪控制技术、最大功率点跟踪技术,介绍了一种自动跟踪型独立式光伏扬水系统。基于光电跟踪原理,光敏电阻阵列检测太阳光信号以实现太阳能自动跟踪;基于超声波测距原理,超声波信号收发器检测水位信号以实现水位跟踪;两组检测信号经过调理电路后,送入以STM32F103zeT6 MCU为控制核的控制器,其通过运行程序分别产生电机控制的PWM信号及蓄能切换开关信号,从而实现对太阳精确跟踪及太阳能的智能化应用。

关键词：太阳能扬水系统最大功率点跟踪单片机

Research status and development of extraction process of zinc-bearing dust from ironmaking and steelmaking—a critical review

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Journal of Iron and Steel Research International 2023年第7期30卷 1303-1323页

作者： Ren-lin Zhu run Huang An-xun Xu Bo li Yong-gang Zang Xue Deng Jing Yang Miao li Xian-ze Long School of Materials and Metallurgy Guizhou UniversityGuiyang 550025GuizhouChina Guizhou Provincial University Key Laboratory of High Performance Battery Materials Guiyang 550000GuizhouChina

Almost 29.57–38.46 million tons of zinc-bearing dust were produced in Chinese iron and steel enterprises *** recovery of Zn and other metals in zinc-bearing dust from ironmaking and steelmaking could improve economic ***,zinc-bearing dust was classified as hazardous waste,and the volatile metals(like Zn,Na,Pb,etc.)in zinc-bearing dust limited the direct reusing in a blast ***,the formation process,fundamental characteristics,and current extraction process of Zn from zinc-bearing dust,associated with thermodynamics and kinetics of the pyrometallurgical process,hydrometallurgical process,and pyro-hydrometallurgical process,were *** is indicated that industrialized pyrometallurgical processes are undergoing high energy consumption and pollution such as rotary kiln and rotary hearth furnace *** vacuum carbothermal reduction process can realize low carbon emission and no waste produced in the *** hydrometallurgical leaching processes in strong acid,strong alkali,and ammonium solutions result in serious liquid pollution and equipment *** pyrometallurgical process involves complex kinetics and lacks kinetic research on semi-industrialization and ***-soluble components in zinc-bearing dust can be removed by water *** kinetics of the strong acid leaching is mainly controlled by the leaching kinetics of Fe_(2)O_(3) and ZnFe_(2)O_(4),while the alkali leaching and weak acid leaching are controlled by the kinetics of ZnO *** in the zincbearing dust can be extracted by a low-temperature sodium roasting–weak acid leaching process that reduces equipment corrosion and environmental pollution.

关键词： Zinc-bearing dust Fundamental characteristics Zn Extraction process Thermodynamics Dynamics

Core-shell heterostructure engineering of CoP nanowires coupled NiFe LDH nanosheets for highly efficient water/seawater oxidation

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Chinese Chemical Letters 2024年第8期35卷 549-553页

作者： Guo-Hong Gao run-ze Zhao Ya-Jun Wang Xiao Ma Yan li Jian Zhang Ji-Sen li School of Chemistry Chemical Engineering and MaterialsJining UniversityQufu 273155China Institute of Physical Education Jining UniversityQufu 273155China Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education) Nankai UniversityTianjin 300071China

Searching for efficient nonprecious metal-based catalysts toward oxygen evolution reaction(OER)are of significance for seawater ***,a core-shell-structured hybrid of cobalt phosphide nanowires@NiFe layered double hydroxide nanosheets grown on conductive nickel foam(CoP@NiFe LDH/NF)is prepared by a feasible approach at low *** charming structure can provide numerous phosphide/hydroxide heterogenous interfaces,expose abundant active sites,and boost elec-tron/mass transfer,synergistically enhancing catalytic OER *** employed as an electrocatalyst toward the OER,the resultant CoP@NiFe LDH/NF only requires a small overpotential of 287 mV to pro-vide 300 mA/cm^(2)current density as well as long-time durability in 1.0 mol/L KOH *** regula-tion of electronic states and surface reconstruction synergistically contribute to highly efficient seawater *** work provides an opportunity to construct efficient and inexpensive electrocatalysts for hydrogen production.

关键词： Cobalt phosphide NiFe layered double hydroxide Interfacial engineering Oxygen evolution reaction Seawater oxidation

Evaluation of the early defoliation trait and identification of resistance genes through a comprehensive transcriptome analysis in pears

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Journal of Integrative Agriculture 2023年第1期22卷 120-138页

作者： SHAN Yan-fei li Meng-yan WANG run-ze li Xiao-gang liN Jing li Jia-ming ZHAO Ke-jiao WU Jun College of Horticulture/State Key Laboratory of Crop Genetics and Germplasm Enhancement Nanjing Agricultural UniversityNanjing 210095P.R.China Institute of Horticulture Jiangsu Academy of Agricultural Sciences/Jiangsu Key Laboratory for Horticultural Crop Genetic ImprovementNanjing 210095P.R.China

Early defoliation,which usually occurs during summer in pear trees,is gradually becoming a major problem that poses a serious threat to the pear industry in southern ***,there is no system for evaluating the responses of different cultivars to early defoliation,and our knowledge of the potential molecular regulation of the genes underlying this phenomenon is still *** this study,we conducted field investigations of 155 pear accessions to assess their resistance or susceptibility to early defoliation.A total of 126 accessions were found to be susceptible to early defoliation,and only 29 accessions were *** them,19 resistant accessions belong to the sand pear species(Pyrus pyrifolia).To identify the resistance genes related to early defoliation,the healthy and diseased samples of two sand pear accessions,namely,the resistant early defoliation accession‘Whasan’and the susceptible early defoliation accession‘Cuiguan’,were used to perform RNA *** with‘Cuiguan’,a total of 444 genes were uniquely differentially expressed in‘Whasan’.Combined with GO and KEGG enrichment analyses,we found that early defoliation was closely related to the stress ***,a weighted gene co-expression network analysis revealed a high correlation of WRKY and ethylene responsive factor(ERF)transcription factors with early defoliation *** study provides useful resistant germplasm resources and new insights into potentially essential genes that respond to early defoliation in pears,which may facilitate a better understanding of the resistance mechanism and molecular breeding of resistant pear cultivars.

关键词： pear early defoliation resistance and susceptibility evaluation RNA-seq WRKY ERF

Characteristics of regional climate change and pattern analysis on Ordos Plateau

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Journal of Environmental Sciences 2002年第4期14卷 568-576页

作者： li Guo qing ZHENG Yuan run Laboratory of Quantitative Vegetation Ecology Institute of BotanyChinese Academy of SciencesBeijing 100093China.

The characteristics of precipitation, temperature and their combination determine the special ecological environment pattern of Ordos Plateau. Analyzing its evolutionary trend attributes to understanding the succession process of the ecological environment of Ordos Plateau and has crucial instructional significance on the ecological restoration research being conducted in this region. Four time scales, arranging from ten days, one month, one season(growing season contrasting to non growing season)to one year were adopted to analyze the climate data which included nearly 30 years and were collected by eight weather stations on Ordos Plateau. The results indicated that the mean annual temperature and the mean monthly temperature of February, September and December, had increased significantly during the late 30 years. The annual precipitation did not show significant changes but its distribution pattern had changed obviously. The ratio of precipitation of major growing season (May October)to annual precipitation had increased distinctively,and five counties' precipitation reached statistically significant level. And the ratio of precipitation of latter growing season (September)to one year decreased significantly while the ratio of non growing season(November next April)to one year changed insignificantly. The results showed that maybe the interaction of increased mean temperature and insignificant change of precipitation in non growing season was one of the reasons why the desertification of the region was deteriorating in recent years. Using some factors closely relating to vegetation succession such as mean annual temperature, mean annual precipitation, distributive pattern of precipitation, mean temperature of the coldest month, mean temperature of the warmest month, precipitation of the warmest month, mean temperature of growing season, precipitation of growing season, potential evapotranspiration(PET)and radiative dryness index(RDI), to synthetically anal

关键词： climate change climatic synthetical regionalization restoration ecology Ordos Plateau