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| 1 | A Novel Single-Nucleotide Mutation in a CLAVATA3 Gene Homolog Controls a Multilocular Silique Trait in Brassica rapa L.显示文摘 | Chuchuan Fan, Yudi Wu, Qingyong Yang, Yang Yang, Qingwei Meng, Keqiao Zhang, Jinguo Li, Jinfang Wang Yongming Zhou | 2014 | Molecular Plant2014，7，12： | 12 |
| 2 | State of the Art and Prospects in Metal-Organic Framework-Derived Microwave Absorption Materials显示文摘Microwave has been widely used in many fields,including communication,medical treatment and military industry;however,the corresponding generated radiations have been novel hazardous sources of pollution threating human’s daily life.Therefore,designing high-performance microwave absorption materials(MAMs)has become an indispensable requirement.Recently,metal-organic frameworks(MOFs)have been considered as one of the most ideal precursor candidates of MAMs because of their tunable structure,high porosity and large specific surface area.Usually,MOF-derived MAMs exhibit excellent electrical conductivity,good magnetism and sufficient defects and interfaces,providing obvious merits in both impedance matching and microwave loss.In this review,the recent research progresses on MOF-derived MAMs were profoundly reviewed,including the categories of MOFs and MOF composites precursors,design principles,preparation methods and the relationship between mechanisms of microwave absorption and microstructures of MAMs.Finally,the current challenges and prospects for future opportunities of MOF-derived MAMs are also discussed. | Shuning Ren Haojie Yu Li Wang Zhikun Huang Tengfei Lin Yudi Huang Jian Yang Yichuan Hong Jinyi Liu | 2022 | Nano-Micro Letters2022，14，4： | 6 |
| 3 | Efficacy of Zhonglun'a-decoction-containing serum on fibroblastlike synoviocyte apoptosis in rats with collagen-induced arthritis via inhibiting Janus kinase/signal transducer and activator of transcription signaling pathway显示文摘OBJECTIVE: To investigate the efficacy of Zhonglun'a-decoction-containing serum(ZHONGL-CS)on the in vitro apoptosis of fibroblast-like synoviocytes(FLS) from rats with collagen-induced arthritis(CIA) by investigating the Janus kinase/signal transducer and activator of transcription(JAK/STAT) signaling pathway.METHODS: A CIA rat model was established using bovine type Ⅱ collagen. FLS were isolated, cultured and identified. A cell counting kit-8 was used to detect cell activity. The half maximal inhibitory concentration(IC50) was calculated. Experimental subjects were divided into control, CIA,ZHONGL-CS, JAK2 inhibitor AG490, and ZHONGLCS with AG490 groups. The in vitro cell cycle and apoptosis rate were detected in FLS by flow cytometry. Bcl-2-associated X protein(Bax), B-cell lymphoma 2(Bcl-2), caspase-3, cyclin D1, phosphorylated JAK2, STAT1, and STAT3 protein expressions in FLS were examined by Western blotting. JAK2, STAT1 and STAT3 mRNA levels were examined by quantitative real-time polymerase chain reaction.RESULTS: Compared with the CIA group, FLS proliferation was inhibited, the FLS G0/G1 cell cycle was arrested, and the rate of FLS apoptosis was increased in the ZHONGL-CS group. In the ZHONGLCS group, the protein levels of Bcl-2 and cyclin D1 were reduced compared with the CIA group and the levels of Bax and caspase-3 in FLS were increased. In the ZHONGL-CS group, the expressions of JAK2, STAT1, and STAT3 mRNA and the levels of phosphorylated JAK2, STAT1, and STAT3 proteins were reduced.CONCLUSION: ZHONGL-CS may induce FLS apoptosis in CIA rats. Activation of the JAK/STAT signaling pathway was inhibited in FLS in vitro. | Yang Yongsheng Dong Qiumei Ma Chunjie Zhang Yudi Li Yongle Chen Kun Zhang Suo | 2019 | Journal of Traditional Chinese Medicine2019，39，2： | 4 |
| 4 | In situ self-assembled organoid for osteochondral tissue regeneration with dual functional units显示文摘The regeneration of hierarchical osteochondral units is challenging due to difficulties in inducing spatial,directional and controllable differentiation of mesenchymal stem cells(MSCs)into cartilage and bone compartments.Emerging organoid technology offers new opportunities for osteochondral regeneration.In this study,we developed gelatin-based microcryogels customized using hyaluronic acid(HA)and hydroxyapatite(HYP),respectively for inducing cartilage and bone regeneration(denoted as CH-Microcryogels and OS-Microcryogels)through in vivo self-assembly into osteochondral organoids.The customized microcryogels showed good cytocompatibility and induced chondrogenic and osteogenic differentiation of MSCs,while also demonstrating the ability to self-assemble into osteochondral organoids with no delamination in the biphasic cartilage-bone structure.Analysis by mRNA-seq showed that CH-Microcryogels promoted chondrogenic differentiation and inhibited inflammation,while OS-Microcryogels facilitated osteogenic differentiation and suppressed the immune response,by regulating specific signaling pathways.Finally,the in vivo engraftment of pre-differentiated customized microcryogels into canine osteochondral defects resulted in the spontaneous assembly of an osteochondral unit,inducing simultaneous regeneration of both articular cartilage and subchondral bone.In conclusion,this novel approach for generating self-assembling osteochondral organoids utilizing tailor-made microcryogels presents a highly promising avenue for advancing the field of tissue engineering. | Zhen Yang Bin Wang Wei Liu Xiaoke Li Kaini Liang Zejun Fan Jiao Jiao Li Yudi Niu Zihao He Hui Li Du Wang Jianjing Lin Yanan Du Jianhao Lin Dan Xing | 2023 | Bioactive Materials2023，，9： | 2 |
| 5 | Clinical factors associated with composition of lung microbiota and important taxa predicting clinical prognosis in patients with severe community-acquired pneumonia显示文摘Few studies have described the key features and prognostic roles of lung microbiota in patients with severe community-acquired pneumonia(SCAP).We prospectively enrolled consecutive SCAP patients admitted to ICU.Bronchoscopy was performed at bedside within 48 h of ICU admission,and 16S rRNA gene sequencing was applied to the collected bronchoalveolar lavage fluid.The primary outcome was clinical improvements defined as a decrease of 2 categories and above on a 7-category ordinal scale within 14 days following bronchoscopy.Sixty-seven patients were included.Multivariable permutational multivariate analysis of variance found that positive bacteria lab test results had the strongest independent association with lung microbiota(R2=0.033;P=0.018),followed by acute kidney injury(AKI;R2=0.032;P=0.011)and plasma MIP-1βlevel(R2=0.027;P=0.044).Random forest identified that the families Prevotellaceae,Moraxellaceae,and Staphylococcaceae were the biomarkers related to the positive bacteria lab test results.Multivariable Cox regression showed that the increase inα-diversity and the abundance of the families Prevotellaceae and Actinomycetaceae were associated with clinical improvements.The positive bacteria lab test results,AKI,and plasma MIP-1βlevel were associated with patients’lung microbiota composition on ICU admission.The families Prevotellaceae and Actinomycetaceae on admission predicted clinical improvements. | Sisi Du Xiaojing Wu Binbin Li Yimin Wang Lianhan Shang Xu Huang Yudi Xia Donghao Yu Naicong Lu Zhibo Liu Chunlei Wang Xinmeng Liu Zhujia Xiong Xiaohui Zou Binghuai Lu Yingmei Liu Qingyuan Zhan Bin Cao | 2022 | Frontiers of Medicine2022，16，3： | 2 |
| 6 | Preparation of a Pt-Ni_(2)P/NF catalyst for highly efficient hydrogen evolution using a magnetic field to promote Ni-Pt galvanic replacement显示文摘The noble metal Pt is an ideal catalyst for promoting the hydrogen evolution reaction(HER)during the electrolysis of water.However,Pt is also expensive and suffers from low utilization rates.In this work,a Pt-Ni_(2)P/NF nanorod catalyst with a low Pt loading was synthesized under different magnetic fields,and it was found that the application of a magnetic field can increase the rate of the galvanic replacement reaction.When the magnetic field strength increases from 0 to 600 mT,the chemical reaction rate increases gradually,and the utilization rate of Pt increased by 2.3 times under 600 mT.The mechanism of the magnetic field-induced magnetohydrodynamic(MHD)effect on the galvanic replacement reaction was revealed.In a 1 M KOH solution and at a current density of 10 mA cm^(-2),the overpotential of Pt-Ni_(2)P/NF prepared by applying a 600 mT magnetic field was as low as 15 mV and the Tafel slope was 37 mV dec^(-1),compared with values of 82 mV and 70 mV dec^(-1) for a specimen prepared without a magnetic field.Additionally,at an overpotential of 90 mV,the mass-based Pt activity of the former material was 12 times greater while its turnover frequency was 19 times greater.This work provides theoretical and technical knowledge expected to assist in the controllable preparation of materials in magnetic fields and the efficient utilization of metallic resources. | Zhong Wang Shuang Yuan Tuo Zang Tengxiao Li Yudi Zhou Jiaqi Liu Tie Liu Kai Wang Qiang Wang | 2023 | Journal of Materials Science & Technology2023，，11： | 1 |
| 7 | Quantum particle swarm optimization based search space partition with application to continuous space optimization显示文摘 | Li Junying Shen Yudi Liu Haitao | 2012 | Journal of Information and Computational Science2012，9，2： | 1 |
| 8 | Strong and Superhydrophobic Wood with Aligned Cellulose Nanofibers as a Waterproof Structural Material显示文摘Lightweight structural materials are important for the energy efficiency of applications,particularly those in the building sector.Here,inspired by nature,we developed a strong,superhydrophobic,yet lightweight material by simple in situ growth of nano-SiO2 and subsequent densification of the wood substrate.In situ generation of SiO2 nanoparticles both inside the wood channels and on the wood surfaces gives the material superhydrophobicity,with static and dynamic contact angles of 159.4°and 3°,respectively.Densification of the wood to remove most of the spaces among the lumen and cell walls results in a laminated,dense structure,with aligned cellulose nanofibers,which in turn contributes to a high mechanical strength up to 384.2 MPa(7-times higher than natural wood).Such treatment enables the strong and superhydrophobic wood(SH-Wood)to be stable and have excellent water,acid,and alkaline resistance.The high mechanical strength of SH-Wood combined with its excellent structural stability in harsh environments,as well its low density,positions the strong and superhydrophobic wood as a promising candidate for strong,lightweight,and durable structural materials that could potentially replace steel. | Yongfeng Li Chaoji Chen Jianwei Song Chunpeng Yang Yudi Kuang Azhar Vellore Emily Hitz Mingwei Zhu Feng Jiang Yonggang Yao Amy Gong Ashlie Martini Liangbing Hu | 2020 | Chinese Journal of Chemistry2020，38，8： | 1 |
| 9 | Genetic variants at 10q 23.33 are associated with plasma lipid levels in a Chinese population显示文摘Plasma lipid abnormalities are implicated in the pathogenic process of type 2 diabetes.The IDE-KIF11-HHEX gene cluster on chromosome 10q23.33 has been identified as a susceptibility locus for type 2 diabetes.We hypothesized that genetic variants at 10q23.33 may be associated with plasma lipid concentrations.Seven tagging single nucleotide polymorphisms(SNPs:rs7923837,rs2488075,rs947591,rs11187146,rs5015480,rs4646957 and rs1111875) at 10q23.33 were genotyped in 3,281 subjects from a Han Chinese population,using the TaqMan OpenArray and Sequenom MassARRAY platforms.Multiple linear regression analyses showed that SNP rs7923837 in the 3'-flanking region of HHEX was significantly associated with triglyceride levels(P = 0.019,0.031 mmol/L average decrease per minor G allele) and that rs2488075 and rs947591 in the downstream region of HHEX were significantly associated with total cholesterol levels(P = 0.041,0.058 mmol/L average decrease per minor C allele and P = 0.018,0.063 mmol/L average decrease per minor A allele,respectively).However,the other four SNPs(rs11187146,rs5015480,rs4646957 and rs1111875) were not significantly associated with any plasma lipid concentrations in this Chinese population.Our data suggest that genetic variants in the IDE-KIF11-HHEX gene cluster at 10q23.33 may partially explain the variation of plasma lipid levels in the Han Chinese population.Further studies are required to confirm these findings in other populations. | Sijun Liu Yun Qian Feng Lu Meihua Dong Yudi Lin Huizhang Li Chong Shen Juncheng Dai Yue Jiang Guangfu Jin Zhibin Hu Hongbing Shen | 2014 | The Journal of Biomedical Research2014，28，1： | 1 |
| 10 | Preparation and mechanical properties of C/SiC nuts and bolts显示文摘 | Guangde Li Changrui Zhang Haifeng Hu Yudi Zhang | 2012 | Materials Science & Engineering A2012，，： | 1 |
| 11 | Transition metal on topological chiral semimetal PdGa with tailored hydrogen adsorption and reduction显示文摘The difficulties in designing high-performance hydrogen evolution reaction(HER)catalysts lie in the manipulation of adsorption behaviors of transition metals(TMs).Topological chiral semimetals with super-long Fermi arc surface states provide an ideal platform for engineering the catalytic performance of TMs through the metal-support interaction.We found the adsorption trends of TMs can be modified significantly when deposited at the surface of the PdGa chiral crystal.The electron transfer from the TMs to the surface states of the PdGa reshapes the d band structure of TMs and weakens the hydrogen intermediate bonding.Especially,W/PdGa is expected to be a good HER catalyst with close to zero Gibbs free energy.Experimentally,we found a Pt-like exchange current density and tumover frequency when depositing W atoms at the PdGa nanostructures surface.The findings provide a way to develop high-efficient electrocatalysts by the interplay between topological surface states and metal-support interaction. | Qun Yang Guowei Li Yudi Zhang Jian Liu Jiancun Rao Thomas Heine Claudia Felser Yan Sun | 2021 | npj Computational Materials2021，，1： | 0 |
| 12 | Myc inhibition tips the immune balance to promote antitumor immunity显示文摘Aberrant expression of Myc is one of the most common oncogenic events in human cancers.Scores of Myc inhibitors are currently under development for treating Myc-driven cancers.In addition to directly targeting tumor cells,Myc inhibition has been shown to modulate the tumor microenvironment to promote tumor regression.However,the effect of Myc inhibition on immune cells in the tumor microenvironment remains poorly understood.Here,we show that the adaptive immune system plays a vital role in the antitumor effect of pharmacologic inhibition of Myc.Combining genetic and pharmacologic approaches,we found that Myc inhibition enhanced CD8 T cell function by suppressing the homeostasis of regulatory T(Treg)cells and the differentiation of resting Treg(rTreg)cells to activated Treg(aTreg)cells in tumors.Importantly,we demonstrated that different Myc expression levels confer differential sensitivity of T cell subsets to pharmacologic inhibition of Myc.Although ablation of the Myc gene has been shown to suppress CD8 T cell function,Treg cells,which express much less Myc protein than CD8 T cells,are more sensitive to Myc inhibitors.The differential sensitivity of CD8 T and Treg cells to Myc inhibitors resulted in enhanced CD8 T cell function upon Myc inhibition.Our findings revealed that Myc inhibitors can induce an antitumor immune response during tumor progression. | Chao Yang Yun Liu Yudi Hu Liang Fang Zhe Huang Huanhuan Cui Jun Xie Yazhen Hong Wei Chen Nengming Xiao Qiyuan Li Wen-Hsien Liu Changchun Xiao | 2022 | Cellular & Molecular Immunology2022，19，9： | 0 |
| 13 | Genome-wide association analysis identified molecular markers and candidate genes for flower traits in Chinese orchid (Cymbidium sinense)显示文摘The orchid,the champagne of f lowers,brings luxury,elegance,and novelty to nature.Cymbidium sinense is a symbol of gigantic floral variability on account ofwavering shapes and sizes of f loral organs,althoughmarker-trait association(MTA)has not been studied for its f loral traits.We evaluated markers associated with 14 f loral traits of C.sinense through a genome-wide association study(GWAS)of 195 accessions.A total of 65318522 single-nucleotide polymorphisms(SNPs)and 3906176 insertion/deletion(InDel)events were identified through genotyping-by-sequencing.Among these,4694 potential SNPs and 477 InDelswere identified as MTAs at−log10 P>5.The genes related to these SNPs and InDels were largely associated with f loral regulators,hormonal pathways,cell division,and metabolism,playing essential roles in tailoring f loral morphology.Moreover,20 candidate SNPs/InDels linked to 11 genes were verified,8 of which were situated on exons,onewas located in the 5-UTR and twowere positioned in introns.Here,themultitepal trait-related gene RABBIT EARS(RBE)was found to be the most crucial gene.We analyzed the role of CsRBE in the regulation of flower-related genes via efficient transient overexpression in C.sinense protoplasts,and found that the floral homeotic genes CsAP3 and CsPI,as well as organ boundary regulators,including CsCUC and CsTCP genes,were regulated by CsRBE.Thus,we obtained key gene loci for important ornamental traits of orchids using genome-wide association analysis of populations with natural variation.The findings of this study can do a great deal to expedite orchid breeding programs for shape variability. | Fengxi Yang Yudi Guo Jie Li Chuqiao Lu Yonglu Wei Jie Gao Qi Xie Jianpeng Jin Genfa Zhu | 2023 | Horticulture Research2023，10，11： | 0 |
| 14 | Adhesive and Self-Healing Polyurethanes with Tunable Multifunctionality显示文摘Many polyurethanes(PUs)are blood-contacting materials due to their good mechanical properties,fatigue resistance,cytocompatibility,biosafety,and relatively good hemocompatibility.Further functionalization of the PUs using chemical synthetic methods is especially attractive for expanding their applications.Herein,a series of catechol functionalized PU(CPU-PTMEG)elastomers containing variable molecular weight of polytetramethylene ether glycol(PTMEG)soft segment are reported by stepwise polymerization and further introduction of catechol.Tailoring the molecular weight of PTMEG fragment enables a regulable catechol content,mobility of the chain segment,hydrogen bond and microphase separation of the C-PUPTMEG elastomers,thus offering tunability of mechanical strength(such as breaking strength from 1.3 MPa to 5.7 MPa),adhesion,self-healing eficiency(from 14.9%to 96.7%within 2 hours),anticoagulant,antioxidation,anti-inflammatory properties and cellular growth behavior.As cardiovascular stent coatings,the C-PU-PTMEGs demonstrate enough flexibility to withstand deformation during the balloon dilation procedure.Of special importance is that the C-PU-PTMEG-coated surfaces show the ability to rapidly scavenge free radicals to maintain normal growth of endothelial cells,inhibit smooth muscle cell proliferation,mediate inflammatory response,and reduce thrombus formation.With the universality of surface adhesion and tunable multifunctionality,these novel C-PU-PTMEG elastomers should find potential usage in artificial heart valves and surface engineering of stents. | Lei Zhou Lu Zhang Peichuang Li Manfred F.Maitz Kebing Wang Tengda Shang Sheng Dai Yudie Fu Yuancong Zhao Zhilu Yang Jin Wang Xin Li | 2023 | Research2023，，1： | 0 |
| 15 | Concurrent validity of evaluating knee kinematics using Kinect system during rehabilitation exercise显示文摘Squats,ascending and descending stairs,and lunges are three functional movements popularly used in clinical rehabilitation.This study aimed to analyze the validity of the Kinect v2 for assessing the kinematics of three functional knee movements.An intelligent program was developed for real-time kinematic evaluation of the knee joint using the Kinect v2 system.Based on image recognition technology,images from the Kinect v2 depth camera were used to develop a kinematic evaluation program for knee joint movements.The kinematics of 30 healthy volunteers during stair ascent and descent,squatting,and lunging movements were collected synchronously with both VICON and Kinect systems.The peak knee angles in the sagittal and coronal planes were extracted and analyzed.A paired samples t-test and the relative coefficient within the groups were used for statistical analysis of the validity of the Kinect compared to the VICON.There was no significant difference(p>0.05)in bilateral knee flexion angle when lunging.No significant difference(p>0.05)was found in left knee flexion during squatting exercises.Although the Kinect generally underestimated knee flexion and valgus,it displayed excellent consistency and good to excellent agreement with the VICON motion analysis system.The results demonstrated that the Kinect based measurement tool for analyzing knee kinematics has the potential to be an effective clinical training device for maintaining knee alignment during exercise. | Guojiong Hu Wenli Wang Bin Chen Hongping Zhi Yudi Li Yixin Shen Kuan Wang | 2021 | Medicine in Novel Technology and Devices2021，，3： | 0 |
| 16 | Research on the Dissemination and Influencing Factors of Big Data and Artificial Intelligence Related Courses in Colleges and Universities-Taking MOOC as an Example显示文摘The rapid development of information technologies such as artificial intelligence,Internet and big data has promoted the deep integration of technology and education,especially the rise of large-scale online courses,which provides a great opportunity for curriculum teaching reform in colleges and universities.At the same time,artificial intelligence,as a cutting-edge technology,has good development prospects and has become a popular professional course in colleges and universities,artificial intelligence technology has become the focus of subject education in many universities.The combination of online education and AI courses will also greatly enhance the enthusiasm of users and expand the dissemination scope of big data and AI related courses.Based on the grounded theory and technology acceptance model,this paper obtains the users’perception evaluation of learning MOOC big data and artificial intelligence courses through field interviews,summarizes the core categories,constructs MOOC user acceptance model,collects sample data by questionnaire and makes an empirical study.It is found that perceived usefulness,expectation confirmation and primary communication effect have a significant positive impact on the secondary communication effect,and the content quality and socialization interaction indirectly affect the secondary communication effect of MOOC curriculum by affecting the primary communication effect. | Zhu Junyan Min Yuguo Li Yudi Chen Xiaoyu Zhou Yu | 2022 | Journal on Artificial Intelligence2022，4，2： | 0 |
| 17 | Effect of a high strength chemical industry wastewater on microbial community dynamics and mesophilic methane generation显示文摘A high strength chemical industry wastewater was assessed for its impact on anaerobic microbial community dynamics and consequently mesophilic methane generation. Cumulative methane production was 251 mL/g total chemical oxygen demand removed at standard temperature and pressure at the end of 30 days experimental period with a highest recorded methane percentage of 80.6% of total biogas volume. Volatile fatty acids(VFAs) analysis revealed that acetic acid was the major intermediate VFAs produced with propionic acid accumulating over the experimental period. Quantitative analysis of microbial communities in the test and control groups with quantitative real time polymerase chain reaction highlighted that in the test group, Eubacteria(96.3%) was dominant in comparison with methanogens(3.7%). The latter were dominated by Methanomicrobiales and Methanobacteriales while Methanosarcinaceae in test groups increased over the experimental period, reaching a maximum on day 30. Denaturing gradient gel electrophoresis profile was performed, targeting the 16S rRNA gene of Eubacteria and Archaea, with the DNA samples extracted at 3 different time points from the test groups. A phylogenetic tree was constructed for the sequences using the neighborhood joining method. The analysis revealed that the presence of organisms resembling Syntrophomonadaceae could have contributed to increased production of acetic and propionic acid intermediates while decrease of organisms resembling Pelotomaculum sp. could have most likely contributed to accumulation of propionic acid. This study suggested that the degradation of organic components within the high strength industrial wastewater is closely linked with the activity of certain niche microbial communities within eubacteria and methanogens. | Harish Venkatakrishnan Youming Tan Maszenan bin Abdul Majid Santosh Pathak Antonius Yudi Sendjaja Dongzhe Li Jerry Jian Lin Liu Yan Zhou Wun Jern Ng | 2014 | Journal of Environmental Sciences2014，26，4： | 0 |
| 18 | Design and Hardware-in-the-loop Validation:A Fractional Full Feed-forward Method for Grid Voltage in LCL Grid-connected Inverter Systems显示文摘The harmonic disturbance in the background grid is a problem that must be considered in the design of a gridconnected inverter.However,the full feed-forward method cannot completely suppress the harmonic disturbance in theory and is sensitive to noise.To tackle these problems,a fractional full feed-forward method of grid voltage is proposed in this paper.First,the mathematical model of the full feed-forward method is deduced,and the differences with the theoretical solution,which can suppress all harmonics,are analyzed.Then,the parameter equation,the harmonic suppression performance,stability analysis and the implementation process of this method are given.Compared with the full feed-forward method,the proposed method not only further improves the harmonic suppression performance,but also reduces the order of the mathematical model of the differential term in the feed-forward loop.In addition,the proposed method can be used to flexibly design feed-forward coefficients by selecting the order of suppressed harmonics.Finally,the proposed method is validated by a hardware-in-the-loop experiment on a MT real-time control platform NI PXIE-1071. | Qingyi Wang Binlei Ju Yudi Lei Dan Zhou Shuai Yin Danyun Li | 2023 | CSEE Journal of Power and Energy Systems2023，9，5： | 0 |
| 19 | Extracting the phase distribution of the electron wave packet ionized by an elliptically polarized laser pulse显示文摘We use an interferometic scheme to extract the phase distribution of the electron wave packet from above-threshold ionization in elliptically polarized laser fields.In this scheme,an electron wave packet released from a circularly polarized laser pulse acts as a reference wave and interferes with the electron wave packet ionized by a time-delayed counter-rotating elliptically polarized laser field.The generated vortex-shaped interference pattern in the photoelectron momentum distribution enables us to extract the phase distribution of the electron wave packet in the elliptically polarized laser pulse with high precision.By artificially screening the ionic potential at different ranges when solving the time-dependent Schördinger equation,we find that the angle-dependent phase distribution of the electron wave packet in the elliptically polarized laser field shows an obvious angular shift as compared to the strong-field approximation,whose value is the same as the attoclock shift.We also show that the amplitude of the angle-dependent phase distribution is sensitive to the ellipticity of the laser pulse,providing an alternative way to precisely calibrate the laser ellipticity in the attoclock measurement. | Ya-Nan Qin Min Li Yudi Feng Siqiang Luo Yueming Zhou Peixiang Lu | 2021 | Frontiers of physics2021，16，3： | 0 |
| 20 | Research on the Application of Intelligence Teaching Mode of Superstar Platform in the Teaching of Experimental Design and Data Processing显示文摘Experimental Design and Data Processing is an important core professional basic course for food science majors.This course is theoretical and practical,and there are many formulas,abstract contents and difficult to understand,and there are some problems in the teaching process,such as students1 poor interest in learning,insufficient mastery of what they have learned,and inability to combine theory with practice organically.Through analyzing the existing problems,this paper puts forward some reform measures for the teaching mode of experimental design and data processing by using the intelligent teaching of Superstar platform. | Wei Li Yudie Li Ran Wang Wenpin Lv Yonggang Qi | 2021 | Journal of Contemporary Educational Research2021，5，8： | 0 |
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