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Recent progress in the development of RE_(2)TMTM’O_(6)double perovskite oxides for cryogenic magnetic refrigeration

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Journal of Materials Science & Technology 2023年第5期136卷 1-12页

作者： Lingwei Li mi Yan Key Laboratory of Novel Materials for Sensor of Zhejiang Province Institute of Advanced Magnetic MaterialsHangzhou Dianzi UniversityHangzhou 310012China School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China

The magnetic functional materials play a particularly important role in our modern society and daily *** magnetocaloric effect(MCE)is at the basis of a solid state magnetic refrigeration(MR)technology which may enhance the efficiency of cooling systems,both for room temperature and cryogenic *** numerous experimental and theoretical MCE studies,commercial MR systems are still at developing *** magnetic solids with outstanding magnetocaloric performances remains therefore a most urgent ***,recent progresses on characterizing the crystal structure,magnetic properties and cryogenic MCE of rare earths(RE)-based RE_(2)TMTM’O_(6)double perovskite(DP)oxides,where TM and TM’are different 3d transition metals,are *** Gd-based DP oxides are found to exhibit promising cryogenic magnetocaloric performances which make them attractive for active MR ap-plications.

关键词： Magnetocaloric effect(MCE) Rare earths Double perovskite(DP)oxides Magnetic functional materials Cryogenic magnetic refrigeration Magnetocaloric performances

综合理解韧性治理视角下的城市社区洪涝灾害韧性及分析框架

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灾害学 2025年第1期40卷 8-15页

作者：孔锋米胤瑜王一飞中国农业大学人文与发展学院北京100083 北京市科学技术协会防灾减灾专业智库基地北京100089 清华大学应急管理研究基地北京100084 中国气象局气象干部培训学院北京100081

气候变化背景下频发重发的洪涝灾害是人类社会可持续发展面临的重大挑战之一。该文首先从洪涝灾害治理的转变出发,深入探讨了从传统的洪涝风险管理向洪涝风险治理转变的深层含义,并概述了韧性城市发展的关键特征。接着,文章对韧性概念... 详细信息

气候变化背景下频发重发的洪涝灾害是人类社会可持续发展面临的重大挑战之一。该文首先从洪涝灾害治理的转变出发,深入探讨了从传统的洪涝风险管理向洪涝风险治理转变的深层含义,并概述了韧性城市发展的关键特征。接着,文章对韧性概念的发展历程进行了梳理,并对比分析了不同韧性理论及其侧重点。在城市韧性多学科视角下,提出了城市洪涝灾害韧性的主要特征与核心内涵,并回顾了相关研究进展,同时指出了社区韧性评价的主要聚焦点。再次,论述了城市社区在面对洪涝灾害时的稳健性、适应性和可转换性特征。最后,从韧性治理的角度,构建了“制度-网络-能力”的分析框架,并详细阐释了城市社区洪涝灾害韧性分析的五个维度:制度韧性、组织韧性、社会韧性、基础设施韧性和技术韧性,以及这些维度之间的内容特征和逻辑联系。

关键词：灾害韧性脆弱性社区洪涝灾害治理气候变化灾害治理的复杂性工程韧性生态韧性演进韧性

Neoadjuvant PD-1 blockade: a promising nonoperative strategy for mismatch repair–deficient, locally advanced rectal cancer

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Signal Transduction and Targeted Therapy 2022年第11期7卷 3989-3991页

作者： mi mi Chenyang Ye Ying Yuan Department of Medical Oncology Key Laboratory of Cancer Prevention and Interventionthe Second Affiliated Hospital of Zhejiang University School of Medicine310009HangzhouZhejiangChina Cancer Center Zhejiang University310058HangzhouZhejiangChina

In a prospective phase 2 study recently published in The New England Journal of Medicine,Cercek et *** the efficacy of the programmed death 1(PD-1)inhibitor dostarlimab in patients with mismatch repair–deficient(dMMR),locally advanced rectal cancer(LARC).The work aimed to present preliminary evidence for the revolutionary therapeutic transition from neoadjuvant chemotherapy/radiotherapy followed by surgery to immunotherapy followed by nonoperative management in this subgroup of patients.

关键词： operative al. rectal

Event-triggered MPC Design for Distributed Systems With Network Communications

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IEEE/CAA Journal of Automatica Sinica 2018年第1期5卷 240-250页

作者： Xiaoxiao mi Shaoyuan Li Key Laboratory of System Control and Information Processing Shanghai Jiao Tong University

This paper deals with the communication problem in the distributed system, considering the limited battery power in the wireless network and redundant transmission among nodes. We design an event-triggered model predictive control(ET-MPC) strategy to reduce the unnecessary communication while promising the system performance. On one hand, for a linear discrete time-invariant system, a triggering condition is derived based on the Lyapunov stability. Here, in order to further reduce the communication rate, we enforce a triggering condition only when the Lyapunov function will exceed its value at the last triggered time, but an average decrease is guaranteed. On the other hand, the feasibility is ensured by minimizing and optimizing the terminal constrained set between the maximal control invariant set and the target terminal set. Finally, we provide a simulation to verify the theoretical results. It's shown that the proposed strategy achieves a good trade-off between the closed-loop system performance and communication rate.

关键词： Event-triggered control Lyapunov stability model predictive control(MPC) terminal invariant set

DYNAmiC VALUATION OF OPTIONS ON NON-TRADED ASSETS AND TRADING STRATEGIES

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Journal of Systems Science & Complexity 2013年第6期26卷 991-1001页

作者： mi Hui ZHANG Shuguang School of Mathematical Sciences Nanjing Normal University Department of Statistics and Finance University of Science and Technology of China

This paper investigates the pricing of options written on non-traded assets and trading strategies for the stock and option in an exponential utility maximization *** the assumption that the option can be continuously traded without friction just as the stock,a dynamic relationship between their optimal positions is derived by using the stochastic dynamic programming *** dynamic option pricing equations are also *** particular,the properties of the associated solutions are discussed and their explicit representations are demonstrated via the Feynman-Kac *** paper further compares the dynamic option price to the existing price notions,such as the marginal price and indifference price.

关键词： Non-traded asset option pricing portfolio selection stochastic control.

Concavity of minimal L^(2) integrals related to multiplier ideal sheaves on weakly pseudoconvex Kahler manifolds

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Science China Mathematics 2022年第5期65卷 887-932页

作者： Qi'an Guan Zhitong mi School of Mathematical Sciences Peking UniversityBeijing 100871China Institute of Mathematics Academy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190China

In this paper,we present the concavity of the minimal L^(2)integrals related to multiplier ideal sheaves on the weakly pseudoconvex Kahler manifolds,which implies the sharp effectiveness results of the strong openness conjecture and a conjecture posed by Demailly and Kollar(2001)on weakly pseudoconvex Kahler *** obtain the relation between the concavity and the L^(2)extension theorem.

关键词： multiplier ideal sheaf plurisubharmonic function weakly pseudoconvex Kahler manifold sublevel set

Effect of Seed Layer on the Orientation of Zinc Oxide Film on Silicon Substrate

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Journal of Materials Science & Technology 2005年第6期21卷 887-890页

作者： mi XIAO Makoto KUWABARA School of Electronic Information Engineering Tianjin University Tianjin 300072 China Department of Materials Science Tokyo University Tokyo Japan

The effect of seed layer on the orientation of ZnO film was investigated. Before the preparation of ZnO film using sol-gel method, seed layer of ZnO was prepared in a similar way using the precursor at a rather low concentration. Experiments show that the existence of seed layer can improve the orientation of the finally prepared ZnO film, while baking temperature, baking time and precursor concentration all have effects on the final results.

关键词： ZnO film Sol-gel Seed layer

Nutritional modulators of ulcerative colitis:Clinical efficacies and mechanistic view

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World Journal of Gastroenterology 2013年第7期19卷 994-1004页

作者： mi-Kyung Sung mi-Young Park Department of Food and Nutrition Sookmyung Women's UniversitySeoul 140-742South Korea Department of Pharmacy the Catholic University of KoreaBucheon 420-743South Korea

Ulcerative colitis(UC) is an inflammation-associated disease of the colon and *** onset and progress of the disease are directly influenced by the nature of the intestinal microflora,the intestinal barrier function,and the immunological responses of the *** epithelial invasion of pathogenic bacteria due to excess contact and/or barrier dysfunction is related to inflammation mediated by intestinal immune *** the etiology of UC is not clearly understood,recent studies have shown a rising incidence of UC worldwide,and this phenomenon is more prominent in Asian countries and in Asian immigrants in Western *** increased prevalence of UC also contributes to an increased risk of developing colorectal *** factors,including changes in dietary habits,have been suggested as major risk factors of UC.A systematic review showed a negative association between UC risk and vegetable intake,whereas total fat,omega-6 fatty acids and meat intake were positively associated with an increased risk of *** dietary factors and energy balance have been suggested as having important roles in inducing changes in the microbial population and intestinal barrier integrity and in regulating inflammatory immune responses,directly or *** energy intake is now known to increase pathogenic microbial ***,the application of appropriate probiotics may reverse the pathogenic progression of the *** the meantime,dietary anti-inflammatory compounds,including omega-3 fatty acids and other phytochemicals,may directly suppress inflammatory responses in the course of UC *** this review,the increased prevalence of UC and its management are interpreted from the standpoint of nutritional modulation to regulate the intestinal microflora population,intestinal epithelium permeability,and inflammatory responses.

关键词： Ulcerative colitis Intestinal microflora Immunity Inflammation Clinical Obesity Probiotics Omega-3 fatty acids Antioxidants

Orange-emitting bimetallic nanoclusters combined with cyan-emitting Fe@TAOH as white light-emitting materials

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Chinese Chemical Letters 2022年第1期33卷 298-303页

作者： Wenying mi Na Shao College of Chemistry Beijing Normal UniversityBeijing 100875China

White-light-emitting diodes(WLEDs)possess many merits,such as high efficiency and *** cost-effective,environmentally friendly,high-performance luminophores to achieve high-quality,full-spectrum,white lighting is of great importance to the construction and progress of *** this work,solid-state,highly luminescent orange-emitting nanoclusters(MgCl_(2)-Lys-Ag/Au NCs)were prepared via the salt-induced precipitation of Lys-Ag/Au NCs from solution,which showed a high absolute quantum yield of 44.5%.A cyan-emitting metal-organic framework(MOF)-like nanomaterial(named Fe@TAOH)was also prepared by the self-assembly of the coordination compound of Fe^(3+)and TAOH acted upon by H_(3)PO_(4) via H-bonding andπ-πstacking interactions,which showed an emission peak at 485 nm and an absolute quantum yield of 21.7%.The potential application of the two facile-synthesis,low toxicity,and highly luminescent materials in WLEDs was *** WLEDs was constructed by coating powdered Fe@TAOH and MgCl_(2)-Lys-Ag/Au NCs samples on commercial GaN LED chip with 365 nm emissions,and it exhibited acceptable white light characteristics with a CIE color coordinates and a color rendering index(CRI)of(0.28,0.34)and 79.6,respectively,implying good prospects in the field of WLEDs.

关键词： Metal nanoclusters Salt-mediated precipitation Fe@TAOH MOFs Self-assembly White light-emitting materials