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Improving Transferable Targeted Adversarial Attack for Object Detection Using RCEN Framework and Logit Loss Optimization

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CMC-COMPUTERS MATERIALS & CONTINUA 2024年第3期80卷 4387-4412页

作者： ding, Zhiyi Sun, Lei Mao, Xiuqing Dai, Leyu ding, ruiyang Informat Engn Univ Sch Cryptog Engn Zhengzhou 450000 Peoples R China

Object detection finds wide application in various sectors, including autonomous driving, industry, and healthcare. Recent studies have highlighted the vulnerability of object detection models built using deep neural networks when confronted with carefully crafted adversarial examples. This not only reveals their shortcomings in defending against malicious attacks but also raises widespread concerns about the security of existing systems. Most existing adversarial attack strategies focus primarily on image classification problems, failing to fully exploit the unique characteristics of object detection models, thus resulting in widespread deficiencies in their transferability. Furthermore, previous research has predominantly concentrated on the transferability issues of non-targeted attacks, whereas enhancing the transferability of targeted adversarial examples presents even greater challenges. Traditional attack techniques typically employ cross-entropy as a loss measure, iteratively adjusting adversarial examples to match target categories. However, their inherent limitations restrict their broad applicability and transferability across different models. To address the aforementioned challenges, this study proposes a novel targeted adversarial attack method aimed at enhancing the transferability of adversarial samples across object detection models. Within the framework of iterative attacks, we devise a new objective function designed to mitigate consistency issues arising from cumulative noise and to enhance the separation between target and non-target categories (logit margin). Secondly, a data augmentation framework incorporating random erasing and color transformations is introduced into targeted adversarial attacks. This enhances the diversity of gradients, preventing overfitting to white-box models. Lastly, perturbations are applied only within the specified object's bounding box to reduce the perturbation range, enhancing attack stealthiness. Experiments wer

关键词： Object detection model security targeted attack gradient diversity

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基于生态宜居理念的寒冷地区住区规划设计

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城市建筑空间 2024年第4期31卷 8-13页

作者：李祥云丁睿洋高翔刘艺婷曹阳赵宁宁北京维拓时代建筑设计股份有限公司北京城建设计发展集团城市设计研究院万达投资集团北区研发设计中心

基于生态宜居理念,以寒冷地区住区规划设计为研究重点,采用案例研究法,以首山湖·畅园为例,从基地解读、住区特色营造、规划技术要点、建筑单体设计等方面着手,探讨寒冷地区生态宜居住区的设计理念和设计要点,助力我国住区建设的高质量... 详细信息

基于生态宜居理念,以寒冷地区住区规划设计为研究重点,采用案例研究法,以首山湖·畅园为例,从基地解读、住区特色营造、规划技术要点、建筑单体设计等方面着手,探讨寒冷地区生态宜居住区的设计理念和设计要点,助力我国住区建设的高质量发展。

关键词：生态宜居寒冷地区住区规划设计

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Analysis of conductance and interfacial polarisation behaviours of silicone rubber based on frequency domain spectroscopy

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High Voltage 2024年第1期9卷 56-65页

作者： Hao Hu Zhidong Jia Xilin Wang ruiyang Guan Weinan Fan Simin Luo Tsinghua Shenzhen International Graduate School Tsinghua UniversityShenzhenChina Guangzhou Power Supply China Southern Power Grid Company Ltd.GuangzhouChina

Silicone rubber(SR)is widely used for cable insulation and operates in multi-stress coupling *** dielectric properties and ageing performance are the essential factors affecting cable *** this study,the frequency domain spectroscopy of unaged SR and SR aged under various conditions is *** dielectric responses before and after ageing are analysed in depth by the conjoint analysis via multiple complex planes(permittivity,conductivity,and modulus).Typical conductivity and interfacial polarisation properties,as well as property changes resulting from thermal and tensile ageing,are *** results show that tensile ageing promotes conductance and interfacial polarisation,while thermal ageing shows the opposite *** on the multi-core model and charge carrier hopping transport model,thermal and tensile ageing mechanisms on the conductance and interfacial polarisation behaviours of SR are *** behaviours exhibit positively correlated changing characteristics,suggesting that the two behaviours may originate from a common *** carrier transport process,promoted by the tensile effect and slightly suppressed by the thermal effect,is the primary factor and considered an important indicator to evaluate the dielectric properties of SR insulation.

关键词： interfacial rubber insulation

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PAL-BERT:An Improved Question Answering Model

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Computer Modeling in Engineering & Sciences 2024年第6期139卷 2729-2745页

作者： Wenfeng Zheng Siyu Lu Zhuohang Cai ruiyang Wang Lei Wang Lirong Yin School of Automation University of Electronic Science and Technology of ChinaChengdu610054China Department of Geography and Anthropology Louisiana State UniversityBaton RougeLA70803USA

In the field of natural language processing(NLP),there have been various pre-training language models in recent years,with question answering systems gaining significant ***,as algorithms,data,and computing power advance,the issue of increasingly larger models and a growing number of parameters has ***,model training has become more costly and less *** enhance the efficiency and accuracy of the training process while reducing themodel volume,this paper proposes a first-order pruningmodel PAL-BERT based on the ALBERT model according to the characteristics of question-answering(QA)system and language ***,a first-order network pruning method based on the ALBERT model is designed,and the PAL-BERT model is ***,the parameter optimization strategy of the PAL-BERT model is formulated,and the Mish function was used as an activation function instead of ReLU to improve the ***,after comparison experiments with traditional deep learning models TextCNN and BiLSTM,it is confirmed that PALBERT is a pruning model compression method that can significantly reduce training time and optimize training *** with traditional models,PAL-BERT significantly improves the NLP task’s performance.

关键词： PAL-BERT question answering model pretraining language models ALBERT pruning model network pruning TextCNN BiLSTM

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A systematic review of the role of TREM2 in Alzheimer’s disease

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中华医学杂志(英文版) 2024年第14期137卷 1684-1694页

作者： Yin Yunsi Yang Hanchen Li ruiyang Wu Guangshan Qin Qi Tang Yi Department of Neurology & Innovation Center for Neurological Disorders Xuanwu Hospital Capital Medical University National Center for Neurological Disorders Beijing China

Background: Given the established genetic linkage between triggering receptors expressed on myeloid cells 2 (TREM2) and Alzheimer’s disease (AD), an expanding research body has delved into the intricate role of TREM2 within the AD context. However, a conflicting landscape of outcomes has emerged from bothin vivo andin vitro investigations. This study aimed to elucidate the multifaceted nuances and gain a clearer comprehension of the role of ***: PubMed database was searched spanning from its inception to January 2022. The search criteria took the form of ( "Alzheimer’s disease" OR "AD" ) AND ( "transgenic mice model" OR "transgenic mouse model" ) AND ( "Triggering receptor expressed on myeloid cells" OR "TREM2" ). Inclusion criteria consisted of the following: (1) publication of original studies in English; (2) utilization of transgenic mouse models for AD research; and (3) reports addressing the subject of ***: A total of 43 eligible articles were identified. Our analysis addresses four pivotal queries concerning the interrelation of TREM2 with microglial function, Aβ accumulation, tau pathology, and inflammatory processes. However, the diverse inquiries posed yielded inconsistent responses. Nevertheless, the inconsistent roles of TREM2 within these AD mouse models potentially hinge upon factors such as age, sex, brain region, model type, and detection ***: This review substantiates the evolving understanding of TREM2’s disease progression-dependent impacts. Furthermore, it reviews the interplay between TREM2 and its effects across diverse tissues and temporal stages.

关键词： TREM2 Alzheimer’s disease Mouse model Microglia Amyloid-β accumulation Tau pathology Inflammation

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Robustness of interdependent networks with weak dependency links and reinforced nodes

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Science China(Information Sciences) 2024年第2期67卷 329-330页

作者： Qian LI Hongtao YU Weitao HAN ruiyang HUANG Shaomei LI Jianpeng ZHANG Institute of Information Technology PLA Strategic Support Force Information Engineering University

Interdependent networks are more vulnerable than single,non-interacting networks under cascading failure [1–3]. Percolation theory provides a quantifiable theoretical framework to quantify and evaluate the robustness of networked systems. Most existing models [1–3] on the robustness of interdependent networks mainly focused on the giant connected component(GCC) to explore the structural robustness from the macro perspective,

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TIMP3/MMP9通路与非小细胞肺癌上皮间质转化的相关性研究

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现代科学仪器 2024年第1期41卷 111-115页

作者：宣自磊裴志强丁瑞阳杨文柱皖西卫生职业学院附属医院呼吸科安徽六安237000

目的:研究TIMP3/MMP9通路与非小细胞肺癌上皮间质转化的相关性。方法:选取2020年6月-2022年3月皖西卫生职业学院附属医院49例非小细胞肺癌患者癌组织以及22例患者癌旁组织,比较TIMP3/MMP9通路相关蛋白差异并采用spearman法检验其相关性... 详细信息

目的:研究TIMP3/MMP9通路与非小细胞肺癌上皮间质转化的相关性。方法:选取2020年6月-2022年3月皖西卫生职业学院附属医院49例非小细胞肺癌患者癌组织以及22例患者癌旁组织,比较TIMP3/MMP9通路相关蛋白差异并采用spearman法检验其相关性。结果:非小细胞肺癌组织与癌旁组织间,组织分化程度、TNM分期、淋巴结转移间TIMP3/MMP9通路相关蛋白比较差异明显(P<0.05);spearman分析结果显示:TIMP3与E-钙黏蛋白呈正相关(P<0.05),与波形蛋白呈负相关(P<0.05),MMP9与E-钙黏蛋白呈负相关(P<0.05),与波形蛋白呈正相关(P<0.05)。结论:TIMP3/MMP9通路与非小细胞肺癌上皮间质转化相关。

关键词：组织蛋白酶抑制剂3 金属蛋白酶9 非小细胞肺癌上皮间质转化

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Thermal stability improvement and microstructure optimization of high cobalt content Nd-Fe-B magnets via terbium grain boundary diffusion

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Journal of Rare Earths 2024年第8期42卷 1531-1538,I0004页

作者： Jiyuan Xu ruiyang Meng Jing Liu Jiateng Zhang Rui Han Yikun Fang Shengzhi Dong Wei Li Division of Functional Materials Research Central Iron and Steel Research InstituteBeijing100081China

The substitution of Fe by Co in the 2:14:1 phase is an effective method to increase the Curie temperature and enhance the thermal stability of the Nd-Fe-B ***,the accumulation of Co ele ment at the grain boundaries(GBs) changes the GBs from nonmagnetic to ferromagnetic and causes the thinlayer GBs to become rare,In this paper,the method of diffusing Tb element was chosen to improve the microstructure and temperature stability of high-Co *** original sintered Nd_(28.5)Dy_(3)-CO_(x)e_(bal)M_(0.6)B_(i)(x=0,6 wt%,12 wt%;M = Cu,Al,Zr) magnets with different Co contents were diffused with Tb by grain boundary diffusion(GBD).After GBD,high-Co magnets exhibit more continuously distributed thin-layer GBs,and their thermal stability is significantly *** high-Co magnets(x=6 wt%),the absolute value of the temperature coefficient of coercivity decreases from 0.603%/K to0.508%/K in the temperature range of 293-413 K,that of remanence decreases from 0.099%/K to 0.091%/K,and the coercivity increases from 18.44 to 25.04 *** electron microscopy(TEM)characterization reveals that there are both the 1:2 phase and the amorphous phase in the high-Co magnet before and after GBD,EDS elemental analysis shows that Tb element is more likely to preferentially replace the rare earth elements in the 2:14:1 main phase than in the 1:2 phase and the amorphous *** concentration of Tb at the edge of the main phase is much higher than that in the 1:2phase and amorphous phase,which is beneficial to the improvement of the *** preferential replacement of Tb elements at the edge of the 2:14:1 phase and thin-layer GBs with a more continuous distribution are synergistically responsible for improving the thermal stability of high-Co *** study indicates that GBD is an effective method to improve the microstructure and thermal stability of high-Co magnets.

关键词： Nd-Fe-B magnets Coercivity Grain boundary diffusion Thermal stability Micro structure Rare earths

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Degradation behaviors of Nabumetone and its metabolite during UV/monochloramine process:Experimental and theoretical study

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Journal of Environmental Sciences 2024年第8期142卷 103-114页

作者： Xiang Tu Yunsong Bai Qing Fu Sheng Chang Kunfeng Zhang Yang Pan ruiyang Xiao Yifu Fu Qi Zhang State Key Laboratory of Environmental Criteria and Risk Assessment State Environmental Protection Key Laboratory of Drinking Water Source ProtectionResearch Centre of Lake EnvironmentNational Engineering Laboratory for Lake Pollution Control and Ecological RestorationChinese Research Academy of Environmental SciencesBeijing 100012China School of Environmental Science and Engineering Suzhou University of Science and TechnologySuzhou 215009China Institute of Environmental Engineering School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083China School of Forestry Northeast Forestry UniversityHarbin 150040China

This study investigated degradation behaviors of a nonsteroidal anti-inflammatory drug Nabumetone(NMT)and its major metabolite 6-methoxy-2-naphthylacetic acid(MNA)in the coupling process of ultraviolet and monochloramine(UV/NH2Cl).The second-order rate constants of the contaminants reacting with reactive radicals(HO·,Cl·,Cl_(2)·-,and CO_(3)·^(-))were determined by laser flash photolysis ***·and Cl·contributed predominantly with 52.3%and 21.7%for NMT degradation and 60.8%and 22.3%for MNA *** presence of chlorides retarded the degradation of NMT,while promoted the destruction of MNA,which was ascribed to the photosensitization effects of MNA under UV *** functional theory(DFT)calculations revealed that radical adduct formation(RAF)was dominant pathway for both HO·and Cl·reacting with the contaminants,and hydrogen atom transfer(HAT)preferred to occur on side chains of NMT and *** reacted with NO_(2)·through single electron transfer(SET)with the second-order rate constant calculated to be 5.35×10^(7)(mol/L)^(-1)sec^(-1),and the contribution of NO_(2)·was predicted to be 13.0%of the total rate constant of NMT in pure water,which indicated that NO_(2)·played a nonnegligible role in the degradation of *** acute toxicity and developmental toxicity of NMT were enhanced after UV/NH_(2)Cl treatment,while those of MNA were *** transformation products of both NMT and MNA exhibited higher mutagenicity than their parent *** study provides a deep understanding of the mechanism of radical degradation of NMT and MNA in the treatment of UV/NH2Cl.

关键词： UV/NH_(2)Cl Reactive species Degradation kinetics Reaction mechanism Degradation products

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The Risk Role of Defeat on the Mental Health of College Students: A Moderated Mediation Effect of Academic Stress and Interpersonal Relationships

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International Journal of Mental Health Promotion 2024年第9期26卷 731-744页

作者： ruiyang Han Tingting Xu Yin Shi Wuyi Liu School of Public Health Shandong Second Medical UniversityWeifang261053China Faculty of Education Beijing Normal UniversityBeijing100875China School of Clinical Medicine Shandong Second Medical UniversityWeifang261053China

Background College students face significant academic and physiological changes, making them more susceptible to psychological issues such as depression, self-injury, and suicidal ideation. Feelings of defeat can exacerbate these risks by increasing academic stress. However, interpersonal relationships can moderate the impact of academic stress on students’ mental health. Utilizing the presage–process–product model, this study aims to empirically investigate how feelings of defeat influence depression, self-injury, and suicidal ideation among college students. Additionally, it explores the mediating role of academic stress and the moderating role of various types of interpersonal relationships. Methods A total of 1612 college students (750 females, 862 males, mean age = 19.64 ± 0.62 years) were recruited through cluster sampling. Data were collected via offline questionnaires administered by a trained psychology teacher and a postgraduate student, ensuring high reliability with two examiners per class. Latent profile analysis (LPA) was used to examine the impact of defeat on mental health outcomes, while mediation analysis was conducted to assess the roles of academic stress and interpersonal relationships. Results 1. Defeat is identified as a significant risk factor for mental health issues among college students; 2. Four distinct patterns of interpersonal relationships were identified: the interpersonal-relationship risk group, the father–child-relationship high-risk group, the general interpersonal-relationship group, and the superior interpersonal-relationship group; 3. Academic stress partially mediates the relationship between defeat and mental health issues such as depression, self-injury, and suicidal ideation; 4. Different interpersonal relationship models moderate the impact of academic stress on depression and suicidal ideation. Conclusion Defeat is a significant risk factor for mental health problems in college students. Academic stress partially mediate

关键词： Student mental health defeat academic stress interpersonal relationships mediation test

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