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Optimality Conditions for Generalized Convex Nonsmooth Uncertain Multi-objective Fractional Programming

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Journal of the Operations Research Society of China 2023年第4期11卷 809-826页

作者： Xiao Pan Guo-Lin Yu tian-tian gong School of Mathematics and Information Science North Minzu UniversityYinchuan750021NingxiaChina

This paper aims at studying optimality conditions of robust weak efficient solutions for a nonsmooth uncertain multi-objective fractional programming problem(NUMFP).The concepts of two types of generalized convex function pairs,called type-I functions and pseudo-quasi-type-I functions,are introduced in this paper for(NUMFP).Under the assumption that(NUMFP)satisfies the robust constraint qualification with respect to Clarke subdifferential,necessary optimality conditions of the robust weak efficient solution are *** optimality conditions are obtained under pseudo-quasi-type-I generalized convexity ***,we introduce the concept of robust weak saddle points to(NUMFP),and prove two theorems about robust weak saddle *** main results in the present paper are verified by concrete examples.

关键词： Multi-objective fractional programming Robust weak efficient solution Generalized convex function Optimality condition Saddle point

Magnetism and cryogenic magnetocaloric effect of triangular-lattice LnOF(Ln=Gd,Dy,Ho,and Er) compounds

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Journal of Rare Earths 2025年第1期43卷 98-104,I0004页

作者： Jianjian gong Lu tian Lei Zhang Zhaojun Mo Yuanpeng Wang Jun Shen School of Rare Earths University of Science and Technology of ChinaHefei230026China Key Laboratory of Rare Earths Ganjiang Innovation AcademyChinese Academy of SciencesGanzhou34119China Department of Energy and Power Engineering School of Mechanical EngineeringBeijing Institute of TechnologyBeijing00081China

Frustrated lanthanide oxides with dense magnetic lattice and suppressed ordering temperature have potential applications in cryogenic magnetic ***,the crystal structure,magnetic properties,magnetic phase transition(MPT)together with magnetocaloric effect(MCE)of LnOF(Ln=Gd,Dy,Ho,and Er)compounds were *** study shows that these compounds crystallize in the centrosymmetric space group R3m with an ideal triangular *** long-range magnetic ordering is observed above 2 K for LnOF(Ln=Gd,Ho,and Er).However,DyOF compound undergoes an MPT from paramagnetic(PM)to antiferromagnetic(AFM)at the Neel temperature(TN≈4 K).Considerable reversible MCE is observed in these triangular-lattice *** the magnetic field change(μ0ΔH)of 0-2 T,the maximum values of magnetic entropy change(-ΔSMmax)of them are 6.1,9.4,12.7,and 14.1 J/(kg·K),***,the value of ErOF with Ising-like spin is 2.3 times that of GdOF,which provides an approach for exploring magnetic refrigerants with excellent low-field cryogenic magnetocaloric effect.

关键词： Geometric magnetic frustration Magnetic phase transition Magnetocaloric effect Magnetic refrigeration Rare earths

Fake Face Detection Based on Fusion of Spatial Texture and High-Frequency Noise

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Chinese Journal of Electronics 2025年第1期34卷 212-221页

作者： Dengyong Zhang Feifan Qi Jiahao Chen Jiaxin Chen Rongrong gong Yuehong tian Lebing Zhang Hunan Provincial Key Laboratory of Intelligent Processing of Big Data on Transportation School of Computer and Communication Engineering Changsha University of Science and Technology School of Computer and Communication Engineering Changsha University of Science and Technology Changsha Social Work College Changkuangao Beijing Technology Co. Ltd. School of Computer and Artificial Intelligence Huaihua University

The rapid development of the Internet has led to the widespread dissemination of manipulated facial images, significantly impacting people's daily lives. With the continuous advancement of Deepfake technology, the generated counterfeit facial images have become increasingly challenging to distinguish. There is an urgent need for a more robust and convincing detection method. Current detection methods mainly operate in the spatial domain and transform the spatial domain into other domains for analysis. With the emergence of transformers, some researchers have also combined traditional convolutional networks with transformers for detection. This paper explores the artifacts left by Deepfakes in various domains and, based on this exploration, proposes a detection method that utilizes the steganalysis rich model to extract high-frequency noise to complement spatial features. We have designed two main modules to fully leverage the interaction between these two aspects based on traditional convolutional neural networks. The first is the multi-scale mixed feature attention module, which introduces artifacts from high-frequency noise into spatial textures, thereby enhancing the model's learning of spatial texture features. The second is the multi-scale channel attention module, which reduces the impact of background noise by weighting the features. Our proposed method was experimentally evaluated on mainstream datasets, and a significant amount of experimental results demonstrate the effectiveness of our approach in detecting Deepfake forged faces, outperforming the majority of existing methods.

关键词： Deepfakes Adaptation models Attention mechanisms Noise Transforms Transformers Feature extraction Internet Convolutional neural networks Faces

Fisetin micelles precisely exhibit a radiosensitization effect by inhibiting PDGFRβ/STAT1/STAT3/Bcl-2 signaling pathway in tumor

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Chinese Chemical Letters 2025年第2期36卷 262-269页

作者： Yuanyuan Zeng Fang Liu Jun Wang Bianfei Shao Tao He Zhongzheng Xiang Yan Wang Shunyao Zhu tian Yang Siting Yu Changyang gong Lei Liu Department of Radiation Oncology Cancer CenterState Key Laboratory of BiotherapyWest China HospitalSichuan University Department of Radiation Oncology The Affiliated Cancer Hospital of Zhengzhou UniversityHenan Cancer Hospital Chongqing Key Laboratory of translational Research for Cancer Metastasis and individualized Treatment Chongqing University Cancer Hospital Department of Biotherapy Cancer Center and State Key Laboratory of BiotherapyWest China HospitalSichuan University Department of Pharmacy The First Affiliated Hospital of Wannan Medical CollegeYijishan Hospital of Wannan Medical College Institute of Surgery Research Daping HospitalThird Military Medical University

It is of great significance to find safe and effective radiosensitizers. A primary investigation has been made on fisetin's modification of radiation effect, but its radiosensitization and related mechanisms still need to be deeply clarified. Furthermore, fisetin with high hydrophobicity is difficult to dissolve in water,severely limiting its research and application. In this study, we fabricated a safe and soluble radiosensitizer fisetin micelle for precisely enhancing radiotherapy by inhibiting platelet-derived growth factor receptor-β(PDGFRβ)/signal transducer and activator of transcription 1(STAT1)/signal transducer and activator of transcription 3(STAT3)/B cell lymphoma 2(Bcl-2) signaling pathway in the tumor. Systematic and detailed studies were performed to verify its radiosensitization effect in vitro and in vivo. On the cellular level, fisetin micelles selectively increased the radiosensitivity of tumor cells(CT26 and 4T1 cells)and had little effect on the sensitivity of normal mouse cells(L929 cells) to radiation. In the mouse models of colon and breast cancers, fisetin micelles showed an efficient radiosensitization capacity without apparent toxicity. Additionally, we first found that fisetin micelles played a radiotherapy sensitization role by inhibiting the PDGFRβ/STAT1/STAT3/Bcl-2 pathway activity. In general, this work not only confirmed that fisetin micelles precisely exhibit a radiosensitization effect in vitro and in vivo, but also profoundly explored its mechanisms underlying, to provide a theoretical and experimental basis for the clinical application of fisetin micelles.

关键词： Fisetin Platelet-derived growth factor receptor-β Polymetric micelles Radiosensitizer Radiotherapy

Coseismic surface ruptures of MW7.8 and MW7.5 earthquakes occurred on February 6,2023,and seismic hazard assessment of the East Anatolian Fault Zone,Southeastern Türkiye

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Science China Earth Sciences 2025年第2期68卷 611-625页

作者： Peng LIANG Yueren XU Xiaocheng ZHOU Ying LI Qinjian tian Huiping ZHANG Zhikun REN Jingxing YU Chuanyou LI Zheng gong Shiguang WANG Aixia DOU Zifa MA Junjie LI Key Laboratory of Earthquake Prediction Institute of Earthquake ForecastingChina Earthquake AdministrationBeijing 100036China China Earthquake Disaster Prevention Center Beijing 100029China State Key Laboratory of Earthquake Dynamics Institute of GeologyChina Earthquake AdministrationBeijing 100029China Institute of Geophysics China Earthquake AdministrationBeijing 100081China

On February 6,2023,southeastern Türkiye experienced a devastating earthquake doublet along the East Anatolian Fault(EAF),with moment magnitude(MW)values of 7.8 and *** strong earthquakes resulted in at least 50,000 deaths and severe economic *** research on coseismic surface ruptures induced by these events is vital for assessing the cascade rupture behaviors of plate boundary faults and future seismic hazards in the *** of high-resolution post-earthquake satellite images and field investigations yielded the following results:(1)the two strong earthquakes had separate rupture *** first earthquake generated an approximately 280 km coseismic surface rupture along the southwestern segment of the main EAF,with 241 left-lateral displacements reaching up to 6.8±0.68 m,particularly 40 km northeast of the *** second earthquake produced a roughly 110 km surface rupture on an east-west branch of the EAF,with maximum displacements of 7.2±0.72 m.(2)The MW7.8 earthquake resulted in a cascading rupture across multiple segments of the southwestern section of the main EAF,with significantly variable *** northeastern and southwestern parts of the main EAF and Malatya Fault remain at risk of strong earthquakes in the future.(3)The EAF rupture zone is densely populated,and due to the site amplification effect of loose sediments on foreland alluvial fans,foundation failures of buildings in the populated areas are ***,it is crucial to enhance the future seismic fortification capabilities in urban and rural areas along the EAF.

关键词： Double strong earthquakes of Mw7.8 and Mw7.5 in Tirkiye,East Anatolian Fault Surface rupture zone,Strong earthquake hazard

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孤岛限制的界面研究

外语教学与研究 2025年第1期57卷 41-54页

作者：田启林程工浙江外国语学院浙江省杭州市310023 浙江大学浙江省杭州市310058

孤岛限制是生成语法研究的核心议题之一。自从Ross(1967)发现这一限制以来,语言学家提出了各种假设来揭示其本质。然而,目前仍存在很多悬而未决的问题。本文在加标理论框架下重新评估主语孤岛、复杂名词短语孤岛和附加语孤岛的性质,并在... 详细信息

孤岛限制是生成语法研究的核心议题之一。自从Ross(1967)发现这一限制以来,语言学家提出了各种假设来揭示其本质。然而,目前仍存在很多悬而未决的问题。本文在加标理论框架下重新评估主语孤岛、复杂名词短语孤岛和附加语孤岛的性质,并在Chomsky(2015)和Bo?kovi?(2016)的基础上,提出孤岛并非源自句法限制,而是源自解读失败的构想。此构想不但为孤岛研究提供了崭新的视角,而且在不忽视语义限制的情况下统一解释了各类强式孤岛,这种做法在学界尚属首次;此外,它还成功阐释了一些例外提取现象及跨语言差异。

关键词：孤岛界面加标弱中心语

Modular assembly of complex C-alkyl glycoside enabled via cooperative NHC and photoredox catalysis

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Science China Chemistry 2025年

作者： Rui-Qiang Jiao Ming Li Xi Chen Mei-Ze Xu tian Ding Xiao-Ping gong Zhuo-Mei Li Xue-Yuan Liu Yong-Min Liang State Key Laboratory of Applied Organic Chemistry Lanzhou University College of Chemistry and Chemical Engineering Northwest Normal University

C-Alkyl glycosides are found in natural products and are indispensable in drug development programs,owing to their diverse range of medicinal ***-component reactions involving glycosyl radical addition are well documented and proved efficient for the C-alkyl glycosides ***,multicomponent reactions for the rapid and controllable construction of structurally diversified C-alkyl glycosides in a single step remains a significant challenge due to the issues associated with balancing reactivity,compatibility,and ***,we report an NHC and photoredox co-catalyzed three-component method to access complex and valuable C-alkyl *** protocol exhibits broad substrate scope and excellent chemoand ***,nine types of sugars are compatible with this *** addition,the generality of this catalytic strategy was further highlighted by the potential for scalable production,the feasibility of further modifications of the products and its successful application in the late-stage functionalization of pharmaceutical skeletons.

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基于混凝土实测收缩曲线的湿度场参数识别

建筑结构 2025年第1期55卷 122-127页

作者：龚灵力孙昱田野湖南省建筑设计院集团股份有限公司长沙410012 浙江大学建筑工程学院杭州310027

湿度场是许多混凝土结构耐久性问题的核心,然而许多湿度场参数不易获得。针对此问题,首先依据Fick扩散定律与质量守恒建立湿度场控制方程,根据湿度场与温度场控制方程的相似性,将湿度场问题转化为温度场问题求解;再根据湿度变化与混凝... 详细信息

湿度场是许多混凝土结构耐久性问题的核心,然而许多湿度场参数不易获得。针对此问题,首先依据Fick扩散定律与质量守恒建立湿度场控制方程,根据湿度场与温度场控制方程的相似性,将湿度场问题转化为温度场问题求解;再根据湿度变化与混凝土收缩变形的关系,基于4组实测混凝土收缩变形曲线,在有限元程序中模拟出与实测曲线相对应的混凝土收缩变形曲线,并利用最小二乘法反演分析出相应混凝土湿度场各关键参数。结果表明:模拟得到收缩变形曲线与实测收缩曲线吻合良好,为实际混凝土结构湿度场参数的测试提供参考。

关键词：混凝土结构湿度场收缩参数识别湿度扩散系数

Evolution Characteristics of Land-sea Coordination Under High-intensity Development in Taizhou Coastal Zone, China

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Chinese Geographical Science 2025年第2期 358-373页

作者： tian Peng LI Jialin WANG Haifeng gong Hongbo KONG Chuxue Department of Geography and Spatial Information Techniques Ningbo University Zhejiang Collaborative Innovation Center & Ningbo Universities Collaborative Innovation Center for Land and Marine Spatial Utilization and Governance Research Ningbo University Donghai Institute Ningbo University Law School Ningbo University Business School Ningbo University

Land-sea coordination is a crucial strategy for ensuring the sustainable and rapid development of coastal cities. Assessing the level of land-sea coordination is vital for understanding the degree of coordination and identifying imbalances within land-sea ***, empirical research in this area remains scarce, necessitating further investigation. Using coastline, land use, and socio-economic data for the Taizhou coastal zone of China across seven time periods from 1990 to 2021, this study analyzed the spatiotemporal characteristics of coastal zone development intensity, developed a comprehensive evaluation model for land-sea coordination, and examined its evolutionary dynamics. The results indicated a substantial rise in development intensity within the Taizhou coastal zone, accompanied by significant alterations in coastline morphology and structure. These changes included a marked reduction in the extent of natural coastline and a corresponding expansion of artificial coastline. The intensity of coastal land use also increased, primarily driven by the expansion of built-up areas and aquaculture ponds. The development level of land-sea systems, as well as the overall coordination of the Taizhou land-sea system, demonstrated a consistent upward trend, advancing from basic to intermediate coordination. These findings provide actionable insights for enhancing land-sea coordination strategies to support the sustainable development of coastal cities.

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