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Feature context learning for human parsing

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Science China(Information Sciences) 2019年第12期62卷 6-19页

作者： tengteng huang Yongchao XU Song BAI Yongpan WANG Xiang BAI School of Electronic Information and Communications Huazhong University of Science and Technology Alibaba Group

Parsing inconsistency, referring to the scatters and speckles in the parsing results as well as imprecise contours, is a long-standing problem in human parsing. It results from the fact that the pixel-wise classification loss independently considers each pixel. To address the inconsistency issue, we propose in this paper an end-to-end trainable, highly flexible and generic module called feature context module(FCM).FCM explores the correlation of adjacent pixels and aggregates the contextual information embedded in the real topology of the human body. Therefore, the feature representations are enhanced and thus quite robust in distinguishing semantically related parts. Extensive experiments are done with three different backbone models and four benchmark datasets, suggesting that FCM can be an effective and efficient plug-in to consistently improve the performance of existing algorithms without sacrificing the inference speed too much.

关键词： human parsing context learning fully convolutional networks graph convolutional network semantic segmentation

Emergency airport site selection using global subdivision grids

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Big Earth Data 2022年第3期6卷 276-293页

作者： Bing Han tengteng Qu Zili huang Qiangyu Wang Xinlong Pan Academy for Advanced Interdisciplinary Studies Peking UniversityBeijingChina College of Engineering Peking UniversityBeijingChina Institute of Defense Engineering AmsBeijingChina Institute of Information Fusion Naval Aviation UniversityYantaiChina

The occurrence of large-magnitude disasters has significantly aroused public attention regarding diversified site selection of emergency facilities.In particular,emergency airport site selection(EASS)is highly complicated,and relevant research is rarely conducted.Emergency airport site selection is a scenario with a wide spatiotemporal range,massive data,and complex environmental information,while traditional facility site selection methods may not be applicable to a large-scale time-varying airport environment.In this work,an emergency airport site selection application is presented based on the GeoSOT-3D global subdivision grid model,which has demonstrated good suitability of the discrete global grid system as a spatial data structure for site selection.This paper proposes an objective function that adds a penalty factor to solve the constraints of coverage and the environment in airport construction.Through multiple iterations of the simulated annealing algorithm,the optimal airport construction location can be selected from multiple preselected points.With experimental verifications,this research may effectively and reasonably solve the emergency airport site selection issue under different circumstances.

关键词： Emergency airport site selection global subdivision grids GeoSOT-3D simulated annealing algorithm penalty function

LLC循环下重型车N_(2)O,PN_(10)排放研究

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车用发动机 2024年第3期 30-35页

作者：刘志伟李腾腾钟祥麟任烁今黄鹏程孟庆梁中汽研汽车检验中心(天津)有限公司天津300300 天津大学天津300072

面向未来法规需求,基于低负荷循环(low-load cycle,LLC),对重型车不同负载条件下的氧化亚氮(N_(2)O)、10 nm以上颗粒物数量(PN_(10))以及23 nm以上颗粒物数量(PN_(23))的排放特征进行了试验研究,并使用v-VSP分块聚类模型进行了区域排放... 详细信息

面向未来法规需求,基于低负荷循环(low-load cycle,LLC),对重型车不同负载条件下的氧化亚氮(N_(2)O)、10 nm以上颗粒物数量(PN_(10))以及23 nm以上颗粒物数量(PN_(23))的排放特征进行了试验研究,并使用v-VSP分块聚类模型进行了区域排放分析。结果表明:LLC工况下,N_(2)O排放量随载荷的增大而增加,与排温直接相关;低速区或负VSP区内,N_(2)O排放与载荷呈正相关关系,但在正VSP&中高速区域,过高的载荷反而降低了N_(2)O的排放;PN_(10)和PN_(23)排放均随载荷的增大而增加,且载荷越大,10~23 nm粒径粒子占比越高;中高速&VSP绝对值大的区域内,PN_(10)和PN_(23)有较高的浓度,但PN_(10)和PN_(23)的绝对排放量主要存在于VSP为正的区域;随着载荷的增大,低速&高VSP区域有更多比例10~23 nm粒径粒子。

关键词：重型汽车低负荷循环氧化亚氮颗粒排放测量

Super-assembly of integrated gold magnetic assay with loopmediated isothermal amplification for point-of-care testing

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Nano Research 2023年第1期16卷 1242-1251页

作者： Jianping Liang Jie Zeng Xiaojuan huang tengteng Zhu Yonglong Gong Chen Dong Xiangrong Wang Lingzhi Zhao Lei Xie Kang Liang Qiongxiang Tan Yali Cui Biao Kong Wenli Hui The College of life science Northwest UniversityXi’an 710069China Shaanxi Provincial Engineering Research Center for Nano-Biomedical Detection Xi’an 710077China Department of Chemistry Shanghai Key Lab of Molecular Catalysis and Innovative MaterialsCollaborative Innovation Center of Chemistry for Energy MaterialsFudan UniversityShanghai 200438China Key Laboratory of Resource Biology and Biotechnology in Western China Ministry of EducationNorthwest UniversityXi’an 710069China Provincial Key Laboratory of Biotechnology of Shaanxi Province Northwest UniversityXi’an 710069China School of Chemical Engineering Graduate School of Biomedical Engineeringand Australian Centre for NanoMedicineUniversity of New South WalesNSW 2052Australia

With the increasing global threat of various diseases and infections,it is essential to develop a fast,low-cost,and easy-to-use point-of-care testing(POCT)system for inspections at all levels of medical institutions and self-examination at home.In this work,gold magnetic nanoparticles(GMNPs)are used as the key material,and a rapid visual detection method is designed through integrating loop-mediated isothermal amplification(LAMP)and lateral flow assay(LFA)biosensor for detecting a variety of analytes which includes whole blood,buccal swabs,and DNA.It is worth to note that the proposed method does not need DNA extraction.Furthermore,uracil DNA glycosylase(UDG)is employed to eliminate carrier contamination for preventing false positive results.The whole detection process can be finished within 25 min.The accuracy of detection is measured by assessing the polymorphisms of the methylenetetrahydrofolate reductase(MTHFR)C677T.The detection limit of the newly developed extraction-free detection system for MTHFR C677T is 0.16 ng/μL.A preliminary clinical study of the proposed method is carried out by analyzing 600 clinical samples(including 200 whole blood samples,100 buccal swabs,and 300 genomic DNA samples).The results indicate that the proposed method is 100%consistent with the sequencing results which provides a new choice for POCT and shows a broad application prospect in all levels of medical clinics and at home.

关键词： gold magnetic nanoparticles loop-mediated isothermal amplification lateral flow assay system free extraction singlenucleotide polymorphisms genotyping

Isolation of marine benzo[a]pyrene-degrading Ochrobactrum sp. BAP5 and proteins characterization

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Journal of Environmental Sciences 2009年第10期21卷 1446-1451页

作者： WU Yirui HE tengteng ZHONG Mingqi ZHANG Yueling LI Enmin huang Tongwang HU Zhong Department of Biology Science College Shantou University Shantou 515063 China. Department of Biochemistry and Molecular Biology Medical College Shantou University Shantou 515063 China

A bacterial strain BAP5 with a relatively high degradation ability of benzo[a]pyrene （BaP） was isolated from marine sediments of Xiamen Western Sea, China and identified as Ochrobactrum sp. according to 16S rRNA gene sequence as well as Biolog microbial identification system. Strain BAP5 could grow in mineral salt medium with 50 mg/L of BaP and degrade about 20% BaP after 30 d of incubation. Ochrobactrum sp. BAP5 was able to utilize other polycyclic aromatic hydrocarbons （PAHs）（such as phenanthrene, pyrene and fluoranthene） as the sole carbon source and energy source, suggesting its potential application in PAHs bioremediation. The profile of total soluble protein from Ochrobactrum sp. BAP5 was also investigated. Some over- and special-expressed proteins of strain BAP5 when incubated with the presence of BaP were detected by two-dimensional polyacrylamide gel electrophoresis, and found to be related with PAHs metabolism, DNA translation, and energy production based on peptide fingerprint analysis through matrix-assisted laser desorption/ionization-time of flight mass spectrometry.

关键词： benzo[a]pyrene biodegradation Ochrobactrum sp. BAP5 proteins

Strength Acquisition Mechanism of High Temperature Resistant Materials Prepared by Waste Architectural Ceramics

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China's Refractories 2022年第1期31卷 8-15页

作者： huang Zhaohui SHI tengteng LIU Yangai WU Xiaowen LIU Xianjie LIN Fankai LENG Gouqin ZHAN Huasheng LI Yanjing GAO Changhe Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes School of Materials Science and TechnologyChina University of Geosciences(Beijing)Beijing 100083China Beijing Jinyu Tongda Refractory Technology Co. Ltd.Beijing 100043China

In order to realize the large-scale and high-value utilization of waste architectural ceramics,high-temperature resistant materials based on waste architectural ceramics were prepared with sodium silicate as the binder,clay/bauxite and metakaolin/bauxite as coating materials,and the cold strength obtaining mechanism was explored.The phase composition,the microstructure and the mechanical properties of the high temperature resistant materials based on waste architectural ceramics were tested and analyzed.The results showed that when the heat treatment temperature was between 110-1000℃,the strength of the samples mainly came from the physical adhesion of sodium silicate and fine powder.When the temperature rose to 1100℃,the strength of the sample was improved since the internal low-melting-point components melted and promoted sintering.The addition of clay and bauxite can effectively enhance the flexural strength of the samples when the heat treatment temperature is 1000℃.When the heat treatment temperature rises from 900 to 1000℃,the flexural strength of the samples will be enhanced owing to the formation of silica alumina spinel and mullite from metakaolin.

关键词： waste architectural ceramics high value utilization high-temperature resistant materials flexural strength

Research on Known Vulnerability Detection Method Based on Firmware Analysis

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Journal of Cyber Security 2022年第1期4卷 1-15页

作者： Wenjing Wang tengteng Zhao Xiaolong Li Lei huang Wei Zhang Hui Guo Beijing Institute of Control and Electronics Technology Beijing100038China State Key Laboratory of Networking and Switching Technology Beijing University of Posts and TelecommunicationsBeijing100876China

At present,the network security situation is becoming more and more serious.Malicious network attacks such as computer viruses,Trojans and hacker attacks are becoming more and more rampant.National and group network attacks such as network information war and network terrorism have a serious damage to the production and life of the whole society.At the same time,with the rapid development of Internet of Things and the arrival of 5G era,IoT devices as an important part of industrial Internet system,have become an important target of infiltration attacks by hostile forces.This paper describes the challenges facing firmware vulnerability detection at this stage,and introduces four automatic detection and utilization technologies in detail:based on patch comparison,based on control flow,based on data flow and ROP attack against buffer vulnerabilities.On the basis of clarifying its core idea,main steps and experimental results,the limitations of its method are proposed.Finally,combined with four automatic detection methods,this paper summarizes the known vulnerability detection steps based on firmware analysis,and looks forward to the follow-up work.

关键词： IoT devices vulnerability mining automatic detection static analysis

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基于深度学习的分布式光纤损伤识别方法

机械工程学报 2022年第8期58卷 88-95页

作者：李建乐张佳奇黄念李腾腾徐浩夏梓旭武湛君大连理工大学工业装备结构分析国家重点实验室大连116024 北京空天技术研究所北京100074

航空航天复合材料结构服役环境恶劣,为保证结构安全运行需要发展结构健康监测技术,基于背向瑞利散射的分布式光纤传感器因其便于埋入、抗干扰能力强等优点被广泛应用于结构健康监测领域。如何从复杂的光纤数据中识别结构损伤是健康监测... 详细信息

航空航天复合材料结构服役环境恶劣,为保证结构安全运行需要发展结构健康监测技术,基于背向瑞利散射的分布式光纤传感器因其便于埋入、抗干扰能力强等优点被广泛应用于结构健康监测领域。如何从复杂的光纤数据中识别结构损伤是健康监测的研究难点之一,基于此问题提出一种用于损伤识别的深度学习方法,采用一维卷积神经网络对复合材料层合板中的脱粘和裂纹损伤进行识别。为了验证方法的可靠性,设置预制损伤的酚醛树脂层合板的悬臂加载试验,其埋入的分布式光纤传感器很好地监测到了损伤区域的应变变化特征,采用试验数据对网络结构进行参数调整,最终确定卷积核大小和卷积层数目。试验结果表明,训练后的一维卷积神经网络能够从复杂的应变曲线中识别出损伤特征,并对损伤特征进行准确定位。在目前的研究中,该方法能够准确识别3 cm2的脱粘损伤和20 mm长的裂纹损伤,同时定位精度小于4 mm。

关键词：结构健康监测分布式光纤卷积神经网络损伤识别

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亨廷顿病基因治疗的研究进展及展望

中华神经医学杂志 2023年第11期22卷 1160-1163页

作者：黄维梦林浩郭志妹卢林吴腾腾郭丽徐评议广州医科大学附属第一医院神经科广州510120 安顺市人民医院神经科安顺561000

亨廷顿病(HD)是一种起病隐匿、进展缓慢的常染色体显性遗传病,以舞蹈样症状、智能减退和精神行为异常为主要特征,病因为4号染色体上的亨廷顿基因(HTT)第1号外显子CAG三联密码子重复序列异常扩增。尽管病因明确,但是目前尚无有效措施能... 详细信息

亨廷顿病(HD)是一种起病隐匿、进展缓慢的常染色体显性遗传病,以舞蹈样症状、智能减退和精神行为异常为主要特征,病因为4号染色体上的亨廷顿基因(HTT)第1号外显子CAG三联密码子重复序列异常扩增。尽管病因明确,但是目前尚无有效措施能够控制疾病发生和进展,临床上仍以对症治疗为主。本文围绕HD基因治疗的临床试验现状、临床上存在的挑战以及未来研究方向进行综述,以期为后续的相关研究提供参考依据。

关键词：亨廷顿病基因治疗基因编辑