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Mitigating ROP Attacks via ARM-Specific In-Place Instruction Randomization

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China Communications 2016年第9期13卷 208-226页

作者： yu liang Key Laboratory of Aerospace Information Security and Trust Computing of Ministry of Education Wuhan 430079China Computer School of Wuhan University Wuhan 430079China

Defending against return-oriented programing(ROP) attacks is extremely challenging for modern operating *** the most popular mobile OS running on ARM,Android is even more vulnerable to ROP attacks due to its weak implementation of ASLR and the absence of effective control-flow integrity *** this paper,leveraging specific ARM features,an instruction randomization strategy to mitigate ROP attacks in Android even with the threat of single pointer leakage vulnerabilities is *** popping out more registers in functions' epilogue instructions and reallocating registers in function scopes,branch targets in all(direct and indirect) branch instructions potential to be ROP gadgets are changed *** the knowledge of binaries' runtime instructions layout,adversary's repeated control flow transfer in ROP exploits will be ***,this instruction randomization idea has been implemented in both Android Dalvik runtime and *** evaluations proved it is capable to introduce enough randomness for more than 99% discovered functions and thwart about 95% ROP gadgets in application's shared libraries and oat file compiled from Dalvik ***,evaluations on real-world exploits also confirmed its effectiveness on mitigating ROP attacks within acceptable performance overhead.

关键词： software security ROP mitigation instruction randomization ARM architecture

Interconnections between diabetic corneal neuropathy and diabetic retinopathy:diagnostic and therapeutic implications

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Neural Regeneration Research 2025年第8期20卷 2169-2180页

作者： Mingyi yu Faith Teo En Ning Chang Liu yu-Chi Liu Tissue Engineering and Stem Cell Group Singapore Eye Research InstituteSingapore Yong Loo Lin School of Medicine National University of SingaporeSingapore Department of Cornea and External Eye Disease Singapore National Eye CenterSingapore Ophthalmology and Visual Sciences Academic Clinical Program Duke-NUS Medical SchoolSingapore

Diabetic corneal neuropathy and diabetic retinopathy are ocular complications occurring in the context of diabetes *** corneal neuropathy refers to the progressive damage of corneal *** retinopathy has traditionally been considered as damage to the retinal ***,growing evidence suggests that diabetic retinopathy is a complex neurovascular disorder resulting from dysfunction of the neurovascular unit,which includes both the retinal vascular structures and neural *** retinopathy is one of the leading causes of blindness and is frequently screened for as part of diabetic ocular ***,diabetic corneal neuropathy is commonly overlooked and underdiagnosed,leading to severe ocular surface *** studies have found that these two conditions tend to occur together,and they share similarities in their pathogenesis pathways,being triggered by a status of chronic *** review aims to discuss the interconnection between diabetic corneal neuropathy and diabetic retinopathy,whether diabetic corneal neuropathy precedes diabetic retinopathy,as well as the relation between the stage of diabetic retinopathy and the severity of corneal *** also endeavor to explore the relevance of a corneal screening in diabetic eyes and the possibility of using corneal nerve measurements to monitor the progression of diabetic retinopathy.

关键词： cornea corneal nerves diabetes diabetic corneal neuropathy diabetic retinopathy retina

Attention Eraser and Quantitative Measures for Automated Bone Age Assessment

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Computers, Materials & Continua 2025年第1期82卷 627-644页

作者： Liuqiang Shu Lei yu College of Computer and Information Science Chongqing Normal UniversityChongqing401331China

Bone age assessment(BAA)aims to determine whether a child’s growth and development are normal concerning their chronological *** predict bone age more accurately based on radiographs,and for the left-hand X-ray images of different races model can have better adaptability,we propose a neural network in parallel with the quantitative features from the left-hand bone measurements for *** this study,a lightweight feature extractor(LFE)is designed to obtain the featuremaps fromradiographs,and amodule called attention erasermodule(AEM)is proposed to capture the fine-grained ***,the dimensional information of the metacarpal parts in the radiographs is measured to enhance the model’s generalization capability across images fromdifferent *** is trained and validated on the RSNA,RHPE,and digital hand atlas datasets,which include images from various racial *** model achieves a mean absolute error(MAE)of 4.42 months on the RSNA dataset and 15.98 months on the RHPE *** to ResNet50,InceptionV3,and several state-of-the-art methods,our proposed method shows statistically significant improvements(p<0.05),with a reduction in MAE by 0.2±0.02 years across different racial ***,t-tests on the features also confirm the statistical significance of our approach(p<0.05).

关键词： Bone age assessment attention eraser quantitative feature metacarpal bones

Tilting homeostatic and dyshomeostatic microglial balance in health and disease:transforming growth factor-beta1 as a critical protagonist

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Neural Regeneration Research 2025年第10期20卷 2895-2897页

作者： Nicolas Hugues yu Luo Department of Molecular and Cellular Biosciences University of CincinnatiCincinnatiOHUSA Neuroscience Graduate Program University of CincinnatiCincinnatiOHUSA Division of Immunobiology Cincinnati Children’s Hospital Medical CenterUniversity of Cincinnati College of MedicineCincinnatiOHUSA

Adult microglia,by continuously sensing changes in their environment and communicating with nearly all brain cell types,are considered to be the immune sentinels of the *** the healthy central nervous system(CNS),microglia display a unique molecular homeostatic signature(i.e.,Tmem119,P2ry12,Sall1,Siglech,Gpr34,and Hexb)(Figure 1A).

关键词： Figure signature critical

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急性百草枯中毒大鼠炎性因子变化研究

中国保健营养（下半月） 2013年第7期23卷 1616-1617页

作者：梁余良宋平平李西西闫永建济南大学医学与生命科学学院(山东省医学科学院) 山东省职业卫生与职业病防治研究院

目的探讨急性百草枯中毒(Acute paraquat poisoning,APQ)大鼠肺损伤中的炎性因子动态变化。方法 56只SD大鼠,分为APQ组与NS组,经口染毒方式(50mg/kg)建立APQ大鼠模型,制作大鼠肺部组织HE染色,光镜下观察组织形态改变。运用酶联免疫法(EL... 详细信息

目的探讨急性百草枯中毒(Acute paraquat poisoning,APQ)大鼠肺损伤中的炎性因子动态变化。方法 56只SD大鼠,分为APQ组与NS组,经口染毒方式(50mg/kg)建立APQ大鼠模型,制作大鼠肺部组织HE染色,光镜下观察组织形态改变。运用酶联免疫法(ELISA)检测各时间点大鼠血清及肺组织匀浆中的TNF-α、IL-8、NE、TGF-β1表达水平,统计分析并探讨APQ大鼠肺部炎性及纤维化病变中的动态变化。结果 HE染色切片见1-3天,模型组巨噬细胞、多形核细胞明显增加,第21天各组炎性细胞较第7天明显减少,但是见成纤维细胞较前略有增多,可见条索样瘢痕改变。检测炎性因子APQ组水平均高于NS组,其中TNF-α、IL-8、NE各时间点之间存在统计学差异性。结论 APQ大鼠肺部炎性因子在染毒后7天达到最大值,第21天表达水平出现明显降低,但仍高于对照组。

关键词：急性百草枯中毒中性粒细胞弹性蛋白酶(NE) 炎性因子

The Faber Operator Acting on BMOA,BMO-Teichmüller Space and Chord-arc Curves

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Acta Mathematica Sinica,English Series 2024年第10期40卷 2359-2387页

作者： Tai liang LIU yu liang SHEN Department of Mathematics Soochow UniversitySuzhou 215006P.R.China

After reviewing Grunsky operator and Faber operator acting on Dirichlet space,we discuss the boundedness of Faber operator on BMOA,a new subject which turns out to be closely related to the BMO theory of the universal Teichmüller *** particular,we show that the Faber operator acts as a bounded operator on BMOA if the symbol conformal map stays nearly to the base point in the BMO-Teichmüller ***,we obtain several results on quasiconformal mappings,BMOTeichm¨uller space and chord-arc curves as *** by-products,this provides a complex analysis approach to the boundedness of the Cauchy integral acting on BMO functions on a chord-arc curve near to the unit circle in the BMO-Teichmüller space.

关键词： Faber operator quasiconformal mapping quasicircle BMO-Teichmüller space chord-arc curve Grunsky operator BMO BMOA Carleson measure Cauchy integral

Review on hydrodynamic instabilities of a shocked gas layer

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Science China(Physics,Mechanics & Astronomy) 2023年第10期66卷 1-9页

作者： yu liang Xisheng Luo NyuAD Research Institute New York University Abu DhabiAbu Dhabi 129188United Arab Emirates Advanced Propulsion Laboratory Department of Moden MechanicsUniversity of Science and Technology of ChinaHefei 230026China

Hydrodynamic instabilities induced by a shock wave can be observed in both natural phenomena and engineering applications,and are frequently employed to study gas dynamics, vortex dynamics, and turbulence. Controlling these instabilities is very desirable, but remains a challenge in applications such as inertial confinement fusion. The field of “shock-gas-layer interaction” has experienced rapid development, driven by advances in experimental and numerical techniques as well as theoretical understanding. This domain has uncovered a diverse array of wave patterns and hydrodynamic instabilities, such as reverberating waves, feedthrough, abnormal and freeze-out Richtmyer-Meshkov instability, among others. Studies have shown that it is possible to suppress these instabilities by appropriately configuring a gas layer. Here we review the recent progress in theories,experiments, and simulations of shock-gas-layer interactions, and the feedthrough mechanism, the reverberating waves and their induced additional instabilities, as well as the convergent geometry and reshock effects, are focused. The conditions for suppressing hydrodynamic instabilities are summarized. The review concludes by highlighting the challenges and prospects for future research in this area.

关键词： hydrodynamic instabilities shock wave gas layer Richtmyer-Meshkov instability

Dynamic Regulation of Hydrogen Bonding Networks and Solvation Structures for Synergistic Solar‑Thermal Desalination of Seawater and Catalytic Degradation of Organic Pollutants

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Nano-Micro Letters 2025年第2期17卷 548-565页

作者： Ming‑yuan yu Jing Wu Guang Yin Fan‑Zhen Jiao Zhong‑Zhen yu Jin Qu Beijing Key Laboratory of Advanced Functional Polymer Composites Beijing University of Chemical TechnologyBeijing 100029People’s Republic of China State Key Laboratory of Organic‑Inorganic Composites College of Materials Science and EngineeringBeijing University of Chemical TechnologyBeijing 100029People’s Republic of China

Although solar steam generation strategy is efficient in desalinating seawater,it is still challenging to achieve continuous solar-thermal desalination of seawater and catalytic degradation of organic ***,dynamic regulations of hydrogen bonding networks and solvation structures are realized by designing an asymmetric bilayer membrane consisting of a bacterial cellulose/carbon nanotube/Co_(2)(OH)_(2)CO_(3)nanorod top layer and a bacterial cellulose/Co_(2)(OH)_(2)CO_(3)nanorod(BCH)bottom ***,the hydrogen bonding networks inside the membrane can be tuned by the rich surface–OH groups of the bacterial cellulose and Co_(2)(OH)_(2)CO_(3)as well as the ions and radicals in situ generated during the catalysis ***,both SO_(4)^(2−)and HSO_(5)−can regulate the solvation structure of Na^(+)and be adsorbed more preferentially on the evaporation surface than Cl^(−),thus hindering the de-solvation of the solvated Na^(+)and subsequent nucleation/growth of ***,the heat generated by the solar-thermal energy conversion can accelerate the reaction kinetics and enhance the catalytic degradation *** work provides a flow-bed water purification system with an asymmetric solar-thermal and catalytic membrane for synergistic solar thermal desalination of seawater/brine and catalytic degradation of organic pollutants.

关键词： Solar steam generation Seawater desalination Catalytic degradation Bacterial cellulose Cobalt hydroxycarbonate nanorods

基于FLAIR影像组学模型鉴别H3K27改变弥漫中线胶质瘤与胶质母细胞瘤

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临床放射学杂志 2025年第1期44卷 27-32页

作者：梁寿衡韩宇王敏阳马宇卉空军军医大学第二附属医院放射科陕西省功能与分子影像重点实验室西安710038

目的探讨基于液体衰减反转恢复(FLAIR)序列影像组学模型鉴别H3K27改变弥漫中线胶质瘤(a-DMG)与胶质母细胞瘤(GBM)的应用价值。方法回顾分析经病理证实的45例a-DMG和63例GBM患者资料,按7∶3随机分为训练集和测试集。两名神经影像专业放... 详细信息

目的探讨基于液体衰减反转恢复(FLAIR)序列影像组学模型鉴别H3K27改变弥漫中线胶质瘤(a-DMG)与胶质母细胞瘤(GBM)的应用价值。方法回顾分析经病理证实的45例a-DMG和63例GBM患者资料,按7∶3随机分为训练集和测试集。两名神经影像专业放射科医师勾画三维容积感兴趣区(VOI),利用3D-Slicer软件提取FLAIR序列影像组学特征。采用最小绝对收缩和选择算子(LASSO)进行特征选择,根据特征回归系数计算Rad评分。通过受试者操作特征(ROC)曲线计算曲线下面积(AUC)评价Rad评分的诊断效能。结果a-DMG和GBM患者的平均年龄、肿瘤位置和在Rad评分两组间差异存在统计学意义(P<0.05)。a-DMG和GBM基于FLAIR序列的11个组学特征Rad评分分别为0.898±0.229和0.558±0.189。Rad评分在训练集和测试集中的AUC值分别为0.896和0.829,敏感度分别为84.4%和78.6%,特异度分别为74.2%和83.3%,阳性预测值分别为82.6%和78.6%,阴性预测值分别为76.7%和83.3%,诊断准确率分别为80.3%和81.3%。结论基于FLAIR序列影像组学模型可以用于鉴别a-DMG和GBM,并有望在中线区高级胶质瘤中预测H3K27突变状态。

关键词： H3K27 弥漫中线胶质瘤胶质母细胞瘤影像组学