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Image Tampering Detection Using No-Reference Image Quality Metrics

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Journal of Harbin Institute of Technology(New Series) 2014年第6期21卷 51-56页

作者： Ying Li Bo Wang Xiang-Wei Kong yan-qing guo School of Information and Communication Engineering Dalian University of Technology

In this paper,a new approach is proposed to determine whether the content of an image is authentic or modified with a focus on detecting complex image *** image tampering without any prior information of the original image is a challenging problem since unknown diverse manipulations may have different characteristics and so do various formats of *** principle is that image processing,no matter how complex,may affect image quality,so image quality metrics can be used to distinguish tampered *** particular,based on the alteration of image quality in modified blocks,the proposed method can locate the tampered *** to four types of effective no-reference image quality metrics,we obtain 13 features to present an *** experimental results show that the proposed method is very promising on detecting image tampering and locating the locally tampered areas especially in realistic scenarios.

关键词： image forensics tampering detection no-reference image quality metrics tampering localization

Dynamic foraging strategy adaptation to heterogeneous environments contributes to social aggregation in snub-nosed monkeys

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Zoological Research 2024年第1期45卷 39-54页

作者： Lan Zhao Sheng-Nan Ji Xiao-Bing Du Jia-Hui Liu Bo-Lun Zhang Pei-Hua Li Yi-Jun yang Bao-guo Li yan-qing guo Xiao-Guang Qi College of Life Sciences Northwest UniversityXi’anShaanxi 710069China Chengdu Institute of Biology Chinese Academy of SciencesChengduSichuan 610041China State Key Laboratory of Environmental Criteria and Risk Assessment Chinese Research Academy of Environmental SciencesBeijing 100012China

The dynamics of animal social structures are heavily influenced by environmental patterns of competition and *** folivorous colobine primates,prevailing theories suggest that larger group sizes should be favored in rainforests with a year-round abundance of food,thereby reducing feeding ***,paradoxically,larger groups are frequently found in high-altitude or high-latitude montane ecosystems characterized by a seasonal scarcity of *** contradiction is posited to arise from cooperative benefits in heterogeneous *** investigate this hypothesis,we carried out a six-year field study on two neighboring groups of golden snub-nosed monkey(Rhinopithecus roxellana),a species representing the northernmost distribution of colobine *** showed that the groups adjusted their movement and habitat selection in response to fluctuating climates and spatiotemporal variability of resources,indicative of a dynamic foraging ***,during the cold,resource-scarce conditions in winter,the large group occupied food-rich habitats but did not exhibit significantly longer daily travel distances than the smaller neighboring ***,we compiled an eco-behavioral dataset of 52 colobine species to explore their evolutionary *** of this dataset suggested that the increase in group size may have evolved via home range expansion in response to the cold and heterogeneous climates found at higher altitudes or ***,we developed a multi-benefits framework to interpret the formation of larger groups by integrating environmental *** cold and diverse environments,even smaller groups require larger home ranges to meet their dynamic survival *** spatiotemporal distribution of high-quality resources within these expanded home ranges facilitates more frequent interactions between groups,thereby encouraging social aggregation into larger *** process enhances the benefits of collabor

关键词： Social evolution Folivore paradox MLS Rhinopithecus roxellana Multi-benefits framework

Channel activity of mirror-image M2 proton channel of influenza A virus is blocked by achiral or chiral inhibitors

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Protein & Cell 2019年第3期10卷 211-216页

作者： qing-yan guo Long-Hua Zhang Chao Zuo Dong-Liang Huang Zhipeng A.Wang Ji-Shen Zheng Chang-Lin Tian School of Life Sciences University of Science and Technology of ChinaHefei 230027China

Dear Editor,It is known that most of lives on the earth compose of homochiral molecules of L-amino acids and D-ribose nucleic ***,little is known why and how the life's chirality in such a *** on an artificial mirror-image life could strengthen our understanding of the question about the origin of life on the Earth and even elsewhere in the *** studies on mirror-image life would also have a plenty of vast application prospects in materials,energy and pharmaceutical sciences(Bohannon,2010).

关键词： Editor chirality question

RESEARCH ON FRACTAL CHARACTERISTICS OF URBAN TRAFFIC NETWORK STRUCTURE BASED ON GIS

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Chinese Geographical Science 2002年第4期12卷 346-349页

作者： LI Jiang,WANG Xiao-yan,guo qing-sh eng(School of Resources and Environment al Sciences,Wuhan University,Wuhan 430079,P.R.China) School of Resources and Environmental Sciences Wuhan University Wuhan P. R. China

Traffic network is an importance asp ect of researching controllable parameters of an urban spatial *** on GIS,traffic network str ucture complexity can be understood by using fractal geometry in which th e length-radius dimension describes change of network density,and ramification-radius dimension describes complexity and accessibility of urban *** i s propitious to analyze urban traffic network and to understand dynamic c hange process of traffic network using expanding f ractal-dimension *** the length-radius dimension and ramifica-tion-radius dimension could be rega rd as reference factor of quantitative describing urban traffic network.

关键词： urban traffic network expanding fractal dimension characteristics GIS

A 65-year-old man with infratentorial diffuse encephalopathy and hydrocephalus

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Chinese Medical Journal 2011年第11期124卷 1758-1760页

作者： FENG yan-qing guo Ning LIU Jun-xiu LAI Rong CHEN Xi HUANG Fan Department of Neurology First Affiliated Hospital of Sun Yat-senUniversity Guangzhou Guangdong 510080 China

Tuberculous encephalopathy （TBE） is an important diagnosis in countries with a high prevalence of tuberculosis. TBE is a life-threatening condition but rarely reported in the modern literature. We reported a case of a man with extensive parenchymal lesions involving the brainstem and right cerebellar hemisphere that resolved after treatment. The clinical, laboratory and pathological features of this case are highlighted and the pathogenesis is discussed.

关键词： tuberculous encephalopathy hydrocephalus

澳大利亚发展海洋经济的经验及我国的战略选择

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中国软科学 2011年第9期 18-29页

作者：谢子远闫国庆浙江万里学院商学院浙江宁波315100

发展海洋经济已上升为我国的国家战略,借鉴海洋经济发达国家的经验为我所用,是一个重要的研究课题。澳大利亚海洋经济发展相对成功,很多经验值得我们借鉴。本文对澳大利亚发展海洋经济的主要做法和经验进行了系统总结,分析了我国海洋经... 详细信息

发展海洋经济已上升为我国的国家战略,借鉴海洋经济发达国家的经验为我所用,是一个重要的研究课题。澳大利亚海洋经济发展相对成功,很多经验值得我们借鉴。本文对澳大利亚发展海洋经济的主要做法和经验进行了系统总结,分析了我国海洋经济发展中存在的主要问题,并借鉴澳大利亚经验提出了我国发展海洋经济的主要思路。

关键词：澳大利亚海洋经济经验

Real world effectiveness of PCSK-9 inhibitors combined with statins versus statins-based therapy among patients with very high risk of atherosclerotic cardiovascular disease in China(RWE-PCSK study)

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Journal of Geriatric Cardiology 2021年第4期18卷 261-270页

作者： Yu-Qi LIU Dan-Dan LI Meng CHAI Hong-Liang CONG Xiao-Qiang CONG Jun DAI Rong-Pin DU Ming GAO Jin-Cheng guo yan-qing guo Xiao-Jian HONG Rong-Chong HUANG Feng-Shun JIA Jia-Yu LI qing LI Jia-Mei LIU Xin-Ping LIU Yu-guo LIU Hong-Gang NIE Bing SHAO Xiao-Yu SHEN Hai-qing SONG Yi-Jun SONG Li-Jun WANG Shuo WANG Dong-Mei WU Jing XIA Zhi-Yong yanG Hong-Ying YU Hui ZHANG Tie-Mei ZHANG Ji-Yi ZHAO Liang-Chen ZHAO Ming-Qi ZHENG Yun-Dai CHEN Department of Cardiology Chinese PLA General HospitalBeijingChina Department of Cardiology Beijing Anzhen HospitalCapital Medical UniversityBeijing Institute of Heart Lung and Blood Vessel DiseaseBeijing Key Laboratory of Precision Medicine of Coronary Atherosclerotic DiseaseClinical Center for Coronary Heart DiseaseCapital Medical UniversityBeijingChina Department of Cardiology Tianjin Chest HospitalTianjinChina Department of Cardiology the First Hospital of Jilin UniversityChangchunChina Department of Cardiology Fuwai HospitalNational Center for Cardiovascular DiseaseChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingChina Department of Cardiology Hebei People’s HospitalShijiazhuangChina Department of Cardiology Kailuan General HospitalHebei Union UniversityTangshanChina Department of Cardiology Beijing Luhe HospitalCapital Medical UniversityBeijingChina Department of Cardiology Shanxi Cardiovascular HospitalTaiyuanChina Department of Cardiology the Fourth Affiliated Hospital of Harbin Medical UniversityHarbinChina Department of Cardiology Beijing Friendship HospitalCapital Medical UniversityBeijingChina Department of Cardiology Tangshan Worker’s HospitalTangshanChina Department of Cardiology China-Japan Friendship Hospital Affiliated Jilin UniversityChangchunChina Department of Cardiology Handan Central HospitalHebeiChina Heart Center Beijing Key Laboratory of HypertensionBeijing Chao-Yang HospitalCapital Medical UniversityBeijingChina Department of Cardiology the First Affiliated Hospital of Dalian Medical UniversityLiaoningChina Department of Cardiology the Second Affiliated Hospital of Harbin Medical UniversityHarbinChina Department of Cardiology the Second Affiliated Hospital of Shenyang Medical CollegeShenyangChina Department of Cardiology the Second Hospital of Shanxi Medical UniversityTaiyuanChina Department of Neurology Xuanwu Hospital Capital Medical UniversityBeijingChina Department of Neurology Tianjin Medical University Gen

BACKGROUND The efficacy and safety of proprotein convertase subtilisin/kexin type 9(PCSK-9) inhibitors were confirmed by several clinical trials, but its effectiveness in routine clinical practice in China has not been evaluated. This study aims to describe the real world effectiveness of PCSK-9 inhibitors combined with statins compared with statins-based therapy among patients with very high risk of atherosclerotic cardiovascular disease(ASCVD).METHODS This is a multi-center observational study, enrolled patients from 32 hospitals who underwent percutaneous coronary intervention(PCI) from January to June in 2019. There are 453 patients treated with PCSK-9 inhibitors combined with statins in PCSK-9 inhibitor group and 2,610 patients treated with statins-based lipid lowering therapies in statins-based group. The lipid control rate and incidence of major adverse cardiovascular events(MACE) over six months were compared between two groups.A propensity score-matched(PSM) analysis was used to balance two groups on confounding factors. Survival analysis using Kaplan-Meier methods was applied for *** In a total of 3,063 patients, 89.91% of patients had received moderate or high-intensity statins-based therapy before PCI, but only 9.47% of patients had low-density lipoprotein cholesterol(LDL-C) levels below 1.4 mmol/L at baseline. In the PSM selected patients, LDL-C level was reduced by 42.57% in PCSK-9 inhibitor group and 30.81%(P < 0.001) in statins-based group after six months. The proportion of LDL-C ≤ 1.0 mmol/L increased from 5.29% to 29.26% in PCSK-9 inhibitor group and 0.23% to 6.11% in statins-based group, and the proportion of LDL-C ≤ 1.4 mmol/L increased from 10.36% to 47.69% in PCSK-9 inhibitor group and 2.99% to 18.43% in statins-based group(P < 0.001 for both). There was no significant difference between PCSK-9 inhibitor and statins-based treatment in reducing the risk of MACE(hazard ratio = 2.52, 95% CI: 0.49-12.97, P = 0.250).CONCLUSIONS In the real

关键词： LDL RWE-PCSK study Real world effectiveness of PCSK-9 inhibitors combined with statins versus statins-based therapy among patients with very high r

Network platform for remote structural testing and shared use of laboratories

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Progress in Natural Science:Materials International 2005年第12期15卷 1135-1142页

作者： XIAO yan,HU qing,guo Yurong,ZHU Pingsheng and YI Weijian Department of Civil Engineering,University of Southern California,Los Angeles CA90089,USA School of Civil Engineering,Hunan University,Changsha 410082,China FutureNet Technologies Corporation,Monrovia,California,USA,and Nanchang,China Department of Civil Engineering University of Southern California Los Angeles CA90089 USA United States School of Civil Engineering Hunan University Changsha 410082 China FutureNet Technologies Corporation Monrovia California and Nanchang China

This paper presents a network platform developed for remote testing of scaled model or prototype structures and structural *** network platform,NetSLab,was developed based on the client/server concept along with a proposed data model and the communication *** platform is capable of transferring the control and feedback data as well as signals among remotely located structural testing laboratories or computers connected by *** concepts were introduced to develop the platform and to provide relatively easy and friendly interface for applications and further *** and actual tests were successfully carried out at the Hunan University,China and the University of Southern California,*** simulating bridge piers and piles or building substructures were subjected to recorded earthquake ground motions,and the tests were controlled remotely over the Internet using the platform.

关键词： communication protocol data model earthquake simulation Internet remote testing

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汽车防滑控制液压制动系统分析与应用

液压与气动 2009年第3期33卷 53-56页

作者：严国庆沧州职业技术学院河北沧州061001

随着电子控制技术在汽车上的应用,汽车防滑控制系统日臻完善,众多防滑系统如ABS、EBD、TCS、ASR、TRC、ESP装备在众多轿车上。该文介绍了ABS/ASR液压制动系统的应用特点,从使用和维修的角度对ABS/ASR液压制动系统进行了分析,便于专业技... 详细信息

随着电子控制技术在汽车上的应用,汽车防滑控制系统日臻完善,众多防滑系统如ABS、EBD、TCS、ASR、TRC、ESP装备在众多轿车上。该文介绍了ABS/ASR液压制动系统的应用特点,从使用和维修的角度对ABS/ASR液压制动系统进行了分析,便于专业技术人员解决汽车防滑和液压制动问题。

关键词：汽车防滑控制 ABS/ASR液压制动 ABS和ASR应用