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Lower Bound for Quantum Integration Error on Anisotropic Sobolev Classes

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Acta Mathematica Sinica,English Series 2010年第4期26卷 669-678页

作者： pei Xin YE School of Mathematical Sciences and LPMC Nankai University Tianjin 300071 P. R. China

We study the approximation of the integration of multivariate functions in the quantum model of computation. Using a new reduction approach we obtain a lower bound of the n-th minimal query error on anisotropic Sobolev class R（Wpr（[0, 1]d））（r R＋d）. Then combining this result with our previous one we determine the optimal bound of n-th minimal query error for anisotropic Hblder- Nikolskii class R（H∞r（[0,1]d）） and Sobolev class R（W∞r（[0,1]d））. The results show that for these two types of classes the quantum algorithms give significant speed up over classical deterministic and randomized algorithms.

关键词： quantum integration anisotropic Sobolev classes Holder-Nikolskii classes n-th minimal query error

How do Cats Resist Landing Injury:Insights into the Multi-level Buffering Mechanism

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Journal of Bionic Engineering 2020年第3期17卷 600-610页

作者： Xueqing Wu Baoqing pei Yuyang pei Wei Wang Yan Hao Kaiyuan Zhou School of Biological Science and Medical Engineering Beihang UniversityBeijing 100083China Beijing Advanced Innovation Centre for Biomedical Engineering Beihang UniversityBeijing 100083China School of Public Health Nanjing Medical UniversityNanjing 211166China

When humans jump down from a high position,there is a risk of serious injury to the lower ***,cats can jump down from the same heights without any injury because of their excellent ability to attenuate impact *** present study aims to investigate the macro/micro biomechanical features of paw pads and limb bones of cats,and the coordination control of joints during landing,providing insights into how cats protect themselves from landing ***,histological analysis,radiological analysis,finite element method,and mechanical testing were performed to investigate the mechanical properties,microstructure,and biomechanical response of the pads and limb *** addition,using a motion capture system,the kinematic/kinetic data during landing were analysed based on inverse *** results show that the pads and limb bones are major contributors to non-impact-injuries,and cats actively couple their joints to adjust the parameters of movement to dissipate the higher ***,the paw pads,limb bones,and coordinated joints complement each other and constitute a multi-level buffering mechanism,providing the cat with the sophisticated shock absorption *** biomechanical analysis can accordingly provide biological inspiration for new approaches to prevent human lower limb injuries.

关键词： cat multi-level buffering paw pads limb bones coordinated joints

On the Grothendieck Ring of the Sequence of Walled Brauer Algebras

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Algebra Colloquium 2023年第3期30卷 395-410页

作者： pei Wang Yanbo Li Teachers'College Beijing Union UniversityBeijing 100101China School of Mathematics and Statistics Northeastern University at QinhuangdaoQinhuangdaoHebei 066004China

In this paper, we provide a diagrammatic approach to study the branching rules for cell modules on a sequence of walled Brauer algebras. This approach also allows us to calculate the structure constants of multiplicat... 详细信息

关键词： walled Brauer algebra cellular algebra cell module Grothendieck ring

International standard of Traditional Chinese Medicine techniques:the operating specification for Traditional Chinese Medicine enema(2022)

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Journal of Traditional Chinese Medicine 2024年第5期44卷 1035-1043页

作者： YU Miao pei Xiaohua Department of General surgery Beijing Hospital of Traditional Chinese Medicine Affiliated to Capital Medical UniversityBeijing 100010China Department of Chest and Breast Surgery Beijing University of Chinese Medicine Xiamen HospitalXiamen 361001China

Chinese Medicine Enema is one of the external therapies in Traditional Chinese Medicine(TCM),which has been widely used ***"International Standard of Traditional Chinese Medicine Techniques:The Operating Specifications for Chinese Medicine Enema is drawn up by the Beijing Hospital of Traditional Chinese Medicine affiliated to Capital Medical University and Beijing University of Chinese Medicine Xiamen Hospital in collaboration with domestic TCM universities and *** specification includes definition,operating process,points for attention and *** is targeted to provide reference for TCM providers at home and abroad with TCM background in clinical decision-making.

关键词： Chinese Medicine Enema international standard traditional Chinese medical technology operating specifications

Value and influencing factors of valid Traditional Chinese Medicine compound prescription patents for mammary gland hyperplasia

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Journal of Traditional Chinese Medicine 2022年第6期42卷 1012-1018页

作者： YANG Xujie pei Xiaohua Department of Traditional Chinese Medical History Documents Hebei University of Chinese MedicineShijiazhuang 050200China Surgical Department Xiamen Hospital Affiliated to Beijing University of Chinese MedicineXiamen 361009China

OBJECTIVE: To explore the value and factors influencing the maintenance of valid Traditional Chinese Medicine compound prescription patents for the management of mammary gland hyperplasia. METHODS: The State Intellectual Property Office Patents Database, China Patent Information Center Patents Database, Soopat Patent Search Platform, and CNIPR Search Platform of Chinese and Foreign Patent Database were searched to identify Traditional Chinese Medicine compound prescription patents for mammary gland hyperplasia that had been maintained for at least 5 years. Logistic regression analysis was used to detect the factors influencing the maintenance of valid patents. RESULTS: From 1 January 1993 to 31 December 2019, a total of 1228, Traditional Chinese Medicine compound prescription patents for mammary gland hyperplasia were authorized. Of these applications, 381 patents were granted and only 176 patents were maintained for more than 5 years. The five independent variables assessed in this study all had significant explanatory functions. CONCLUSIONS: The maintenance of valid patents for Traditional Chinese Medicine compound prescriptions for treating mammary gland hyperplasia is of great importance. The maintenance of such patents depends on many factors, such as the concentration of effective herbs, number of dependent claims, provision of new dosage forms and detailed experimental data, and transfer of patent rights.

关键词： logistic models mammary glands human hyperplasia patent Traditional Chinese Medicine compound prescription influencing factor

CircRNA: a rising star in plant biology

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Journal of Genetics and Genomics 2022年第12期49卷 1081-1092页

作者： pei Zhang Mingqiu Dai National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural UniversityWuhanHubei 430070China

Circular RNAs(circRNAs) are covalently closed single-stranded RNA molecules, which are widespread in eukaryotic cells. As regulatory molecules, circRNAs have various functions, such as regulating gene expression, binding mi RNAs or proteins, and being translated into proteins, which are important for cell proliferation and cell differentiation, individual growth and development, as well as many other biological processes. However, compared with that in animal models, studies of circRNAs in plants lags behind and,particularly, the regulatory mechanisms of biogenesis and molecular functions of plant circRNAs remain elusive. Recent studies have shown that circRNAs are wide spread in plants with tissue-or developmentspecific expression patterns and are responsive to a variety of environmental stresses. In this review, we summarize these advances, focusing on the regulatory mechanisms of biogenesis, molecular and biological functions of circRNAs, and the methods for investigating circRNAs. We also discuss the challenges and the prospects of plant circ RNA studies.

关键词： Plant circRNA circRNA biogenesis circRNA regulation Roles of circRNA Methodologies in circRNA studies

Differentiation of human embryonic stem cells along a hepatocyte lineage and its application in liver regeneration

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Chinese Science Bulletin 2008年第1期53卷 1-7页

作者： pei HaiYun WANG YunFang pei XueTao Department of Stem Cell and Regenerative Medicine Beijing Institute of Transfusion Medicine Beijing 100850 China

Hepatocyte transplantation and bioartificial liver (BAL) as alternatives to liver transplantation offer the possibility of effective treatment for many inherited and acquired hepatic disorders. Unfortunately, the limited availability of donated livers and the variability of their derived hepatocytes make it difficult to obtain enough viable human hepatocytes for the hepatocyte-based therapies. Embryonic stem cells (ESCs), which could be isolated directly from the blastocyst inner cell mass, have permanent self-renewal capability and developmental pluripotency and therefore might be an ideal cell source in the treatment of hepatic discords. However, differentiation of hESCs into hepatocytes with significant numbers remains a challenge. This review updates our current understanding of differentiation of ESCs into hepatic lineage cells, their future therapeutic uses and problems in liver regeneration.

关键词：胚胎干细胞肝细胞分化肝再生

The Construction of Simulation Algorithms for Laser Fusion

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Communications in Computational Physics 2007年第2期2卷 255-270页

作者： Wenbing pei Institute of Applied Physics and Computational Mathematics P.O.Box 8009Beijing 100088P.R.China.

In this work,we will present a system of numerical simulations for inertial confinement fusion,which consists of a series of one-dimensional,two-dimensional and three-dimensional *** efforts have been made to develop 2D and 3D computer simulation codes,forming a 2D simulation capability so with the key physics issues in laser fusion can be separately simulated mainly by a LARED family containing six different 2D(and partially 3D)code *** models and the characteristics of the main codes will be described,and some simulation results using the LARED family will be presented.

关键词： Laser fusion numerical simulations LARED.

基于地震勘探与瞬变电磁法信息融合的含水陷落柱精细探测研究

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煤矿现代化 2025年第1期34卷 78-83,90页

作者：裴建伟冯亮山西世德孙家沟煤矿有限公司山西忻州036600

在煤矿含水陷落柱精细探测中,地震波场与瞬变电磁场相结合的融合处理方法具有良好的发展前景。为此,以孙家沟煤矿为例,通过提取瞬变电磁法反演电阻率,优化8个对目标地质构造敏感的地震属性,选择基于粒子群优化(PSO-BPNN)的反向传播神经... 详细信息

在煤矿含水陷落柱精细探测中,地震波场与瞬变电磁场相结合的融合处理方法具有良好的发展前景。为此,以孙家沟煤矿为例,通过提取瞬变电磁法反演电阻率,优化8个对目标地质构造敏感的地震属性,选择基于粒子群优化(PSO-BPNN)的反向传播神经网络(BPNN)作为模型试验和工程应用的融合方法,通过试验模型验证了PSO-BPNN预测煤矿不同含水陷落柱(WBCC)的可行性和有效性,在工程应用中,将钻孔属性用于PSO-BPNN训练,取得了较好的融合效果。结果表明,8个属性可以作为基于地震法和瞬变电磁法的WBCC信息融合的主要特征集,进而通过PSO-BPNN检测煤矿陷落柱的边界和丰度。

关键词：地震属性瞬变电磁法含水陷落柱反向传播神经网络