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△-tame quasi-hereditary algebras

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science china mathematics 2007年第2期50卷 240-252页

作者： yun-ge xu & Ying-bo ZHANG faculty of mathematics and computer science, hubei university, wuhan 430062, china School of mathematics sciences, Beijing Normal university, Beijing 100875, china faculty of mathematics and computer science Hubei University Wuhan China School of mathematics sciences Beijing Normal University Beijing China

Let (K, M,H) be an upper triangular bimodule problem. Briistle and Hille showed that the opposite algebra A of the endomorphism algebra of a projective generator P of the matrices category of (K., M, H) is quasi-hereditary, and there is an equivalence between the category of△-good modules of A and Mat(K, M). In this note, based on the tame theorem for bimodule problems, we show that if the algebra A associated with an upper triangular bimodule problem is of△-tame representation type, then the category F(△) has the homogeneous property, i.e. almost all modules in F(△) are isomorphic to their Auslander-Reiten translations. Moreover, if (K, M,H)is an upper triangular bipartite bimodule problem, then A is of△-tame representation type if and only if F(△) is homogeneous.

关键词： bimodule problem quasi-hereditary algebra △-tameness homogeneity.

Hochschild (Co)homology of a Class of Nakayama Algebras

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Acta Mathematica Sinica,English Series 2008年第7期24卷 1097-1106页

作者： yun ge xu Dan WANG faculty of mathematics & computer science Hubei University Wuhan 430062 P. R. China

Let A = kQ/I be a finite-dimensional Nakayama algebra, where Q is an Euclidean diagram An for some n with cyclic orientation, and I is an admissible ideal generated by a single monomial relation. In this note we determine explicitly all the Hochschild homology and cohomology groups of A based on a detailed description of the Bardzell complex. Moreover, the cyclic homology of A can be calculated in the case that the underlying field is of characteristic zero.

关键词： Nakayama algebra Hochschild homology cyclic homology Hochschild cohomology

Hochschild(Co)homology of Galois Coverings of Grassmann Algebras

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Acta Mathematica Sinica,English Series 2009年第10期25卷 1693-1702页

作者： yun ge xu Xin TANG School of mathematics and computer science Hubei University Wuhan 430062 P.R. China Department of mathematics and computer science Fayetteville State University Fayetteville NC 28301 USA

Let ∧ be the Z2-Galois covering of the Grassmann algebra A over a field k of characteristic not equal to 2. In this paper, the dimensional formulae of Hochschild homology and cohomology groups of ∧ are calculated explicitly. And the cyclic homology of∧ can also be calculated when the underlying field is of characteristic zero. As a result, we prove that there is an isomorphism from i≥1 HH^i（∧） to i≥1 HH^i（∧）.

关键词： Galois covering Grassmann algebra Hochschild (co)homology minimal projective resolution

Characteristic Modules of Dual Extensions and Grobner Bases

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Acta Mathematica Sinica,English Series 2004年第6期20卷 1119-1130页

作者： yun ge xu Long Cai LI faculty of mathematics and computer science Hubei University Academy of mathematics and Systems science Chinese Academy of Sciences

Let C be a finite dimensional directed algebra over an algebraically closed field k and A=A(C) the dual extension of *** characteristic modules of A are constructed explicitly for a class of directed algebras,which generalizes the results of ***,it is shown that the characteristic modules of dual extensions of a certain class of directed algebras admit the left Gr(?)bner basis theory in the sense of ***.

关键词： Quasi-hereditary algebra Dual extension Characteristic module (Left)Gr(?)bner basis

Hochschild cohomology of truncated quiver algebras

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science china mathematics 2007年第5期50卷 727-736页

作者： yun-ge xu Yang HAN Wen-feng JIANG faculty of mathematics&computer science Hubei UniversityWuhan 430062China Academy of mathematics and Systems science Chinese Academy of SciencesBeijing 100080China

For a truncated quiver algebra over a field of an arbitrary characteristic, its Hochschild cohomology is calculated. Moreover, it is shown that its Hochschild cohomology algebra is finitedimensional if and only if its... 详细信息

关键词： truncated quiver algebra Hochschild cohomology global dimension oriented cycle 16E40 16E10 16G10

Large circuit models: opportunities and challenges

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science china(Information sciences) 2024年第10期67卷 25-66页

作者： Lei CHEN Yiqi CHEN Zhufei CHU Wenji FANG Tsung-Yi HO Ru HUANG Yu HUANG Sadaf KHAN Min LI Xingquan LI Yu LI yun LIANG Jinwei LIU Yi LIU Yibo LIN Guojie LUO Hongyang PAN Zhengyuan SHI Guangyu SUN Dimitrios TSARAS Runsheng WANG Ziyi WANG Xinming WEI Zhiyao XIE Qiang xu Chenhao xuE Junchi YAN Jun YANG Bei YU Mingxuan YUAN Evangeline F.Y.YOUNG xuan ZENG Haoyi ZHANG Zuodong ZHANG Yuxiang ZHAO Hui-Ling ZHEN Ziyang ZHENG Binwu ZHU Keren ZHU Sunan ZOU Huawei Noah’s Ark Lab School of Integrated Circuits Peking University faculty of Electrical Engineering and computer science Ningbo University Department of Electronic and computer Engineering Hong Kong University of Science and Technology Department of computer science and Engineering The Chinese University of Hong Kong School of Integrated Circuits Southeast University Huawei HiSilicon Peng Cheng Laboratory School of computer science Peking University School of Microelectronics State Key Laboratory of Integrated Chips and System Fudan University School of Artificial Intelligence Shanghai Jiao Tong University

Within the electronic design automation(EDA) domain, artificial intelligence(AI)-driven solutions have emerged as formidable tools, yet they typically augment rather than redefine existing methodologies. These solutions often repurpose deep learning models from other domains, such as vision, text, and graph analytics, applying them to circuit design without tailoring to the unique complexities of electronic circuits. Such an “AI4EDA” approach falls short of achieving a holistic design synthesis and understanding,overlooking the intricate interplay of electrical, logical, and physical facets of circuit data. This study argues for a paradigm shift from AI4EDA towards AI-rooted EDA from the ground up, integrating AI at the core of the design process. Pivotal to this vision is the development of a multimodal circuit representation learning technique, poised to provide a comprehensive understanding by harmonizing and extracting insights from varied data sources, such as functional specifications, register-transfer level(RTL) designs, circuit netlists,and physical layouts. We champion the creation of large circuit models(LCMs) that are inherently multimodal, crafted to decode and express the rich semantics and structures of circuit data, thus fostering more resilient, efficient, and inventive design methodologies. Embracing this AI-rooted philosophy, we foresee a trajectory that transcends the current innovation plateau in EDA, igniting a profound “shift-left” in electronic design methodology. The envisioned advancements herald not just an evolution of existing EDA tools but a revolution, giving rise to novel instruments of design-tools that promise to radically enhance design productivity and inaugurate a new epoch where the optimization of circuit performance, power, and area(PPA) is achieved not incrementally, but through leaps that redefine the benchmarks of electronic systems' capabilities.

关键词： AI-rooted EDA large circuit models (LCMs) multimodal circuit representation learning circuit optimization

Enhanced hepatic differentiation in the subpopulation of human amniotic stem cells under 3D multicellular microenvironment

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World Journal of Stem Cells 2019年第9期11卷 705-721页

作者： Kinji Furuya yun-Wen Zheng Daisuke Sako Kenichi Iwasaki Dong-xu Zheng Jian-yun ge Li-Ping Liu Tomoaki Furuta Kazunori Akimoto Hiroya Yagi Hiromi Hamada Hiroko Isoda Tatsuya Oda Nobuhiro Ohkohchi Department of Gastrointestinal and Hepato-Biliary-Pancreatic Surgery Faculty of MedicineUniversity of TsukubaTsukubaIbaraki 305-8575Japan Institute of Regenerative Medicine and Affiliated Hospital Jiangsu UniversityZhenjiang 212001Jiangsu ProvinceChina Department of Regenerative Medicine School of MedicineYokohama City UniversityYokohama 236-0004Japan Department of Medicinal and Life sciences Faculty of Pharmaceutical SciencesTokyo University of ScienceNoda 278-8510Japan Department of Obstetrics and Gynecology Faculty of MedicineUniversity of TsukubaTsukuba 305-8575Japan faculty of Life and Environmental sciences University of TsukubaTsukuba 305-8572Japan

BACKGROUND To solve the problem of liver transplantation donor insufficiency,an alternative cell transplantation therapy was *** focused on amniotic epithelial cells(AECs)as a cell source because,unlike induced pluripotent stem cells,they are cost-effective and *** utilization of AECs in regenerative medicine,however,is in its infancy.A general profile for AECs has not been comprehensively ***,no hepatic differentiation protocol for AECs has yet been *** this end,we independently compiled human AEC libraries,purified amniotic stem cells(ASCs),and co-cultured them with mesenchymal stem cells(MSCs)and human umbilical vein endothelial cell(HUVECs)in a 3D system which induces functional hepatic *** To characterize AECs and generate functional hepatic organoids from ASCs and other somatic stem cells METHODS AECs,MSCs,and HUVECs were isolated from the placentae and umbilical cords of cesarean section *** and primary AEC stemness characteristics and heterogeneity were analyzed by immunocytochemistry,Alkaline phosphatase(AP)staining,and flow *** adherent AEC subpopulation was selected and evaluated for ASC purification quality by a colony formation *** transcriptomes were compared with those for other hepatocytes cell sources by *** 2D and 3D culture were compared by relative gene expression using several differentiation ***,MSCs,and HUVECs were combined in a 3D co-culture system to generate hepatic organoids whose structure was compared with a 3D AEC sphere and whose function was elucidated by immunofluorescence imaging,periodic acid Schiff,and an indocyanine green(ICG)*** AECs have certain stemness markers such as EPCAM,SSEA4,and *** AEC subpopulation was also either positive for AP staining or expressed the TRA-1-60 and TRA-1-81 stemness ***,it could form colonies and its frequency was enhanced ten-fold in the adherent subpo

关键词： 3D micropattern Amniotic epithelial cells Amniotic stem cells Hepatic differentiation Heterogeneity Human placental tissue Human umbilical vein endothelial cells Mesenchymal stem cells Multicellular microenvironment Organoid

Newborn emergency transport based on the fifth-generation wireless networks and blockchain

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World Journal of Pediatrics 2022年第7期18卷 520-524页

作者： Jin-Wu Fang Wei-Jia Fu Rui Feng Hong-Tao Ni yun Cao Cheng-Jie Ye Ying Gu Xiao-Ling ge Fan Zhang Long-Quan Jiang Juan-Wei Xing Liang-Feng Tang Ying-Ying Zhang Jian-Guo Zhou Ru-Yi Zheng Hong xu Xiao-Bo Zhang Department of Epidemiology School of Public HealthFudan UniversityShanghaiChina Children's Hospital of Fudan university ShanghaiChina Shanghai Key Laboratory of Intelligent Information.Processing School of Computer ScienceFudan UniversityShanghaiChina china Telecom(Shanghai)Co. LidShanghaiChina Department of Respiratory Children's Hospital of Fudan UniversityNo.399 Wanyuan RoadShanghai 201102China Department of Nephrology Children's Hospital of Fudan UniversityNo.399 Wanyuan RoadShanghai 201102China

Neonatal care is of great significance to health *** neonatal intensive care units(NICUs)started to be established in the late 1980s in china,neonatal mortal-ity has decreased each year to reach 3.4‰in 2020[1,2].However,the improvement for neonatal care is still on the *** than three-fifths of deaths included critically ill neonates occur in their first 28 days[3].Critically ill neo-nates usually have lower gestational age and body weight,leading to high mortality or requiring specific treatment and monitoring[4].It is a common practice to transfer a critically ill newborn patient to a tertiary children's hospi-tal with an excellent ***,it is crucial to pro-mote patients'safety by improving the neonatal transport network services[5].Owing to the complexity and rapid changes in neonatal conditions,especially for those requir-ing multi-disciplinary treatment,there is a high reliance on a specialized newborn transport team[6,7].

关键词： mortality transport treatment

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矩阵增量属性约简算法

小型微型计算机系统 2018年第6期39卷 1245-1249页

作者：闫鑫景运革山西财经大学信息管理学院太原030006 运城学院公共计算机教学部山西运城044000 西南交通大学信息科学与技术学院成都611756

实际生活中很多数据集每时每刻都在发生变化,如何快速更新动态数据属性约简是信息科学领域中研究的一个热点课题.针对决策信息系统对象属性值被细化且对象增加时如何快速获得约简问题,分析了基于矩阵方法计算决策信息系统等价关系矩阵... 详细信息

实际生活中很多数据集每时每刻都在发生变化,如何快速更新动态数据属性约简是信息科学领域中研究的一个热点课题.针对决策信息系统对象属性值被细化且对象增加时如何快速获得约简问题,分析了基于矩阵方法计算决策信息系统等价关系矩阵和相对知识粒度的增量更新机制,提出属性值细化且对象增加时增量属性约简算法.最后下载了4组UCI数据对所提出的增量属性约简算法的性能进行了测试,实验结果验证了所提出的增量属性约简算法能够有效处理动态属性约简的问题.

关键词：粗糙集增量机制属性约简知识粒度