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| 1 | Vapor phase fabrication of three-dimensional arrayed BiI3 nanosheets for cost-effective solar cells显示文摘Multilayered photovoltaic absorbers have triggered widespread attention for their unique structure and properties.However,multilayered materials in the randomly oriented polycrystalline thin-film lead to ineffective carrier transport and collection,which hinders the process of achieving high-performance solar cells.Herein,this issue is tackled by producing the three-dimensional(3D)heterojunction BiI3 nanosheets(NSs)solar cells,which embed vertically aligned monocrystalline BiI3 NSs into spiro-OMeTAD.The preferred orientation of BiI3 NSs and large p-n junction areas of 3D heterojunction structure enable a strong light absorption and effective carrier transport and collection,and thus a power conversion efficiency(PCE)of 1.45%was achieved.Moreover,this PCE is the highest ever reported for BiI3 based solar cells to our best knowledge.Moreover,the nonencapsulated device remained 96%of the initial PCE after 24 h continuous one sun illumination at^70%humidity condition,and 82%of the initial PCE after 1-month storage at^30%humidity condition. | Yiyi Zhu Qianpeng Zhang Matthew Kam Swapnadeep Poddar Leilei Gu Shijun Liang Pengfei Qi Feng Miao Zhiyong Fan | 2020 | InfoMat2020，2，5： | 2 |
| 2 | Multi-omic characterization of genome-wide abnormal DNA methylation reveals diagnostic and prognostic markers for esophageal squamous-cell carcinoma显示文摘This study investigates aberrant DNA methylations as potential diagnosis and prognosis markers for esophageal squamous-cell carcinoma(ESCC),which if diagnosed at advanced stages has<30%five-year survival rate.Comparing genome-wide methylation sites of 91 ESCC and matched adjacent normal tissues,we identified 35,577 differentially methylated CpG sites(DMCs)and characterized their distribution patterns. | Yiyi Xi Yuan Lin Wenjia Guo Xinyu Wang Hengqiang Zhao Chuanwang Miao Weiling Liu Yachen Liu Tianyuan Liu Yingying Luo Wenyi Fan Ai Lin Yamei Chen Yanxia Sun Yulin Ma Xiangjie Niu Ce Zhong Wen Tan Meng Zhou Jianzhong Su Chen Wu Dongxin Lin | 2022 | Signal Transduction and Targeted Therapy2022，7，3： | 2 |
| 3 | Polarization loss analysis and ageing characterisation of transformer oil-immersed insulation by using decoupled frequency domain spectroscopy显示文摘The polarization information contained in the frequency-domain spectroscopy(FDS)could be utilised for characterising the ageing degree of transformer oil-immersed insulation.However,the polarization information will be obscured by its conductance effect,it is thus hard to analyse the polarization behaviour by using the traditional FDS technique.Given this issue,an alternative approach is proposed to analyse the polari-zation information using FDS decoupled by logarithmic-derivative spectroscopy(LDS).Findings proved that the polarization loss information generated by polarization behaviour can be separated from the total dispersion loss.The proposed feature pa-rameters are later used to analyse the polarization loss information under ageing impact.Also,the polarization loss surface is constructed by using these feature parameters to characterise the ageing degrees of oil-immersed samples.Finally,the potential possibility of using the proposed method to analyse the polarization loss and ageing degree are respectively discussed. | Xianhao Fan Jiefeng Liu Yiyi Zhang Zheshi Ding Qingyin Wang | 2022 | High Voltage2022，7，3： | 2 |
| 4 | NICKEL(Ⅱ)ion-intercalated MXene membranes for enhanced H_(2)/CO_(2) separation显示文摘Hydrogen fuel has been embraced as a potential long-term solution to the growing demand for clean energy.A membrane-assisted separation is promising in producing high-purity H_(2).Molecular sieving membranes(MSMs)are endowed with high gas selectivity and permeability because their well-defined micropores can facilitate molecular exclusion,diffusion,and adsorption.In this work,MXene nanosheets intercalated with Ni^(2+) were assembled to form an MSM supported on Al_(2)O_(3) hollow fiber via a vacuum-assisted filtration and drying process.The prepared membranes showed excellent H_(2)/CO_(2) mixture separation performance at room temperature.Separation factor reached 615 with a hydrogen permeance of 8.35×10^(-8) mol·m^(-2)·s^(-1) ·Pa^(-1).Compared with the original Ti_(3)C_(2)T_(x)/Al_(2)O_(3) hollow fiber membranes,the permeation of hydrogen through the Ni^(2+)-Ti_(3)C_(2)T_(x)/Al_(2)O_(3) membrane was considerably increased,stemming from the strong interaction between the negatively charged MXene nanosheets and Ni^(2+).The interlayer spacing of MSMs was tuned by Ni^(2+).During 200-hour testing,the resultant membrane maintained an excellent gas separation without any substantial performance decline.Our results indicate that the Ni2+tailored Ti_(3)C_(2)T_(x)/Al_(2)O_(3) hollow fiber membranes can inspire promising industrial applications. | Yiyi Fan Jinyong Li Saidi Wang Xiuxia Meng Yun Jin Naitao Yang Bo Meng Jiaquan Li Shaomin Liu | 2021 | Frontiers of Chemical Science and Engineering2021，15，4： | 1 |
| 5 | CCGD-ESCC: A Comprehensive Database for Genetic Variants Associated with Esophageal Squamous Cell Carcinoma in Chinese Population显示文摘Esophageal squamous-cell carcinoma(ESCC) is one of the most lethal malignancies in the world and occurs at particularly higher frequency in China. While several genome-wide association studies(GWAS) of germline variants and whole-genome or whole-exome sequencing studies of somatic mutations in ESCC have been published, there is no comprehensive database publically available for this cancer. Here, we developed the Chinese Cancer Genomic Database-Esophageal Squamous Cell Carcinoma(CCGD-ESCC) database, which contains the associations of 69,593 single nucleotide polymorphisms(SNPs) with ESCC risk in 2022 cases and 2039 controls, survival time of 1006 ESCC patients(survival GWAS) and gene expression(expression quantitative trait loci,eQTL) in 94 ESCC patients. Moreover, this database also provides the associations between8833 somatic mutations and survival time in 675 ESCC patients. Our user-friendly database is a resource useful for biologists and oncologists not only in identifying the associations of genetic variants or somatic mutations with the development and progression of ESCC but also in studying the underlying mechanisms for tumorigenesis of the cancer. CCGD-ESCC is freely accessible at http://gffzzdf7d528e3a264cb9hkuwcccvuobwv69n0.ffgz.tsg.suse.edu.cn/ccgd/ESCCdb. | Linna Peng Sijin Cheng Yuan Lin Qionghua Cui Yingying Luo Jiahui Chu Mingming Shao Wenyi Fan Yamei Chen Ai Lin Yiyi Xi Yanxia Sun Lei Zhang Chao Zhang Wen Tan Ge Gao Chen Wu Dongxin Lin | 2018 | Genomics, Proteomics & Bioinformatics2018，16，4： | 1 |
| 6 | New Reform of the US Peace Corps and Old Problems for Foreign Aid Volunteers显示文摘The United States once saw a 'confusing' direction of the foreign aid development under the Trump administration.It was widely speculated that the US Agency for International Development (USAID),the Millennium Challenge Corporation (MCC)and the Peace Corps were all faced multiple pressure for reform,such as budget cuts, institutional restructuring,and staff adjustment. | fan yiyi yue sangyu | 2018 | International Understanding2018，，3： | 0 |
| 7 | EFFECT OF TRACE ELEMENTS P AND Mn ON THE MICROSTRUCTURE AND HYDROGEN EMBRITTLEMENT OF AN Fe-Ni-Co BASED SUPERALLOY显示文摘EFFECTOFTRACEELEMENTSPANDMnONTHEMICROSTRUCTUREANDHYDROGENEMBRITTLEMENTOFANFe-Ni-CoBASEDSUPERALLOYWANGAnchuan;YANGKe;FANCungan... | WANG Anchuan YANG Ke FAN Cungan LI Yiyi(Institute of Metal Research,Chinese Academy of Sciences Shenyang 110015,China) | 1996 | Acta Metallurgica Sinica(English Letters)1996，9，1： | 0 |
| 8 | Analysis of low‐frequency polarisation behaviour for oil‐paper insulation using logarithmic‐derivative spectroscopy显示文摘The low‐frequency polarisation information of oil‐paper insulation could be easily obscured by the conductance effect,and the contained polarisation information thus can not be readily extracted from the frequency domain spectroscopy(FDS).Given this issue,an alternative idea is reported to extract the low‐frequency polarisation infor-mation by using logarithmic‐derivative spectroscopy(LDS).The present findings proved that the parameters extracted by using the LDS can be applied for studying the low‐frequency polarisation behaviour under the moisture effect.In that respect,the novelty of this work is in the exploration of the LDS as a potential tool to extract feature parameters for analyzing the low‐frequency polarisation information of trans-former oil‐paper insulation. | Jiefeng Liu Xianhao Fan Yiyi Zhang Benhui Lai Jian Jiao | 2021 | High Voltage2021，6，3： | 0 |
| 9 | EFFECT OF MICROSTRUCTURE ON MECHANICAL PROPERTIES OF INCOLOY 907显示文摘Effect of microstructure on the mechanical properties of a precipitation strengtheningFe-Ni-Co based low expansion alloy,Incoloy 907.has been investigated under different heattreatments.The dispersed γ-phase is found to be the principal strengthening phase in thealloy.The microstructure of the alloy with even dispersed fine γ′-phase seems to have the bestmechanical properties.However,it will be worsened if the alloy was aged at some higher tem-perature or overaged to precipitate needle-like ε-phase. | XIE Yun YANG Ke ZHAO Xu FAN Cungan LI Yiyi Institute of Metal Research,Academia Sinica,Shenyang,China | 1992 | Acta Metallurgica Sinica(English Letters)1992，5，4： | 0 |
| 10 | Recent progress of efficient flexible solar cells based on nanostructures显示文摘Flexible solar cells are important photovoltaics(PV)technologies due to the reduced processing temperature,less material consumption and mechanical flexibility,thus they have promising applications for portable devices and building-integrated applications.However,the efficient harvesting of photons is the core hindrance towards efficient,flexible PV.Light management by nanostructures and nanomaterials has opened new pathways for sufficient solar energy harvesting.Nanostructures on top surfaces provide an efficient pathway for the propagation of light.Aside from suppressing incident light reflection,micro-structured back-reflectors reduce transmission via multiple reflections.Nanostructures themselves can be the absorber layer.Photovoltaics based on high-crystallinity nanostructured light absorbers demonstrate enhanced power conversion efficiency(PCE)and excellent mechanical flexibility.To acquire a deep understanding of the impacts of nanostructures,herein,a concise overview of the recent development in the design and application of nanostructures and nanomaterials for photovoltaics is summarized. | Yiyi Zhu Qianpeng Zhang Lei Shu Daquan Zhang Zhiyong Fan | 2021 | Journal of Semiconductors2021，42，10： | 0 |
| 11 | Growth Kinetics of γ′ Particles in Incoloy 907显示文摘The kinetics of growth of the γ’ precipitate in an lncoloy 907 alloy have been studied. The kinetics of particle growth obeyed the tirne law predicted by the Lifshitz-Wagner theory. The distribution of γ’particle sizes was found to be significantly broader than the theoretical distribution of LifshitZ-Wagner theory. It is suggested that this is due to the relatively large lattice parameter mismatch between γ’ and the Fe-Ni-Co | Xu ZHAO Dongfa LI Ke YANG Cungan FAN and Yiyi LI (Institute of Metal Research, Academia Sinica, Shenyang, 110015, China)(To whom correspondence should be addressed) | 1994 | Journal of Materials Science & Technology1994，10，2： | 0 |
| 12 | Preliminary Study on Quantitative Research Methods of Discussion-based Teaching: CAD/CAM Course显示文摘Computer-aided design and manufacturing,or CAD/CAM,in a narrow sense,is the use of a computer for component design and machining. As a specialized course for students,CAD/CAM course is a required course for undergraduates majoring in mechanical engineering and related engineering majors and also the core technical skills to be mastered during the undergraduate study. Based on the teaching practices of CAD/CAM course,this paper tries to introduce the discussion-based method in curriculum design and the implementation of the course,and enhance the interaction between teachers and students through using new information interaction tools such as We Chat group and course homepage to stimulate students' interest,and also expand the learning space and time. Thus,the problems students have will be solved in real time. In this study,for the first time,the statistical methods are used to record detailed the speaking time,keywords and the frequency of teachers and students' interaction,and also carries out quantitative analysis in order to explore the interactive patterns between teacher and students in discussion-based teaching,so as to improve communication and learning efficiency between teacher and students. Meanwhile,this paper also discussed the advantages and the disadvantages of using discussion-based teaching in the hope that it can provide reference for the following discussion-based teaching of CAD/CAM course in mechanical or related engineering majors. | FAN Yiqiang ZHANG Yiyi HE Dongmei YU Yuan ZHANG Yajun | 2018 | International Journal of Plant Engineering and Management2018，23，2： | 0 |
| 13 | An improved second-order kinetic model for degradation analysis of transformer paper insulation under non-uniform thermal field显示文摘The ageing kinetic model is regarded as an effective tool to describe the degradation of transformer paper insulation.However,the temperature of the transformer winding is unevenly distributed,and the existing ageing kinetic models only depend on experimental data of accelerated thermal ageing at a constant temperature.Given this issue,this work proposes an improved second-order kinetic model accounting for the non-uniform thermal field.First,oil-paper insulation samples with different ageing stages are prepared under the non-uniform thermal field.Then,the sample's experimental data of moisture dispersion and distribution of degree of polymerisation are collected.On this basis,the improved second-order kinetic model is derived to simulate insulating paper's ageing process subjected to an axial temperature gradient.Further,the relationship of the parameters in the improved second-order kinetic model with the temperature and moisture content at different winding heights is obtained.Finally,the proposed model is validated,and the results show that the proposed model is more scientific than the traditional models to describe the degradation of paper insulation.In that respect,this work illustrates an improved second-order kinetic model to provide a reference for the ageing assessment/life prediction of transformer paper insulation under the non-uniform thermal field. | Jiefeng Liu Kuo Jiang Qingyin Wang Heng Zhang Enze Zhang Xianhao Fan Yiyi Zhang | 2023 | High Voltage2023，8，1： | 0 |
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