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A remote-sensing image-retrieval model based on an ensemble neural networks

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Big Earth Data 2018年第4期2卷 351-367页

作者： Caihong Ma Fu Chen Jin Yang jianbo liu Wei Xia Xinpeng Li Sanya Institute of Remote Sensing SanyaHainan ProvinceChina Institute of Remote Sensing and Digital Earth Chinese Academy of SciencesBeijingChina

With the rapid development of remote-sensing technology and the increasing number of Earth observation satellites,the volume of image datasets is growing *** management of big Earth data is also becoming increasingly complex and difficult,with the result that it can be hard for users to access the imagery that they are interested in quickly,efficiently and *** address these challenges,this paper proposes a remote-sensing image-retrieval model based on an ensemble neural *** model can make full use of existing training data to improve the efficiency and accuracy of the initial retrieval of remotesensing images and keep model *** retrieval of aerial images using the proposed model is compared with the results obtained using ten individual neural networks and two ensemble neural networks and the results show that the proposed approach has a high degree of *** addition,the coverage rate and mean precision show a dramatic improvement of more than 40%compared with existing methods based on normal ***,the coverage ratio gets 86%for the top 10 return results.

关键词： Content-based remotesensing image retrieval neural network multi-features

Preparation of luminescent CdTe quantum dots doped core-shell nanoparticles and their application in cell recognition

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Chinese Science Bulletin 2005年第16期50卷 1703-1707页

作者： LI Zhaohui WANG Kemin TAN Weihong LI Jun FU Zhiying WANG Yilin liu jianbo YANG Xiaohai State Key Laboratory of ChemotBiosensing and Chemometrics HunanEngineering Research Center for Bio-Nanotechnology. Biomedical Engineering Center of Hunan University Changsha 410082 China

Based on the reverse microemulsion technique, luminescent quantum dots doped core-shell nanoparticles have been prepared by employing silica as the shell and CdTe quantum dots as the core of the nanoparticles, which have an excellent solubility and dispersibility, especially amine and phosphonate groups have been modified on their surface synchronously. In comparison with CdTe quantum dots, these nanoparticles show superiority in chemical and photo-chemical stability. The quantum dots doped core-shell nanoparticles were successfully linked with lactobionic acid by amine group on it, which was used to recognize living liver cells.

关键词：纳米粒子光致漂白稳定性细胞识别发光量子

On the Parliament Participation in the Universal Periodic Review of the United Nations Human Rights

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The Journal of Human Rights 2017年第2期16卷 149-161页

作者：朱利江 liu jianbo International Law School

Whether, and if so how, parliaments should participate in the Universal Periodic Review mechanism of the UN Human Rights Council is emerging. Due to their unique contributions to human rights protection and promotion, parliaments should participate in the process. Furthermore, some parliaments are already involved in this mechanism, including drafting national reports, engaging in interactive dialogues, and the implementation of review recommendations. In the past two rounds of reviews, China’s National People’s Congress has a positive record in this regard, but it should play a more active role in ratifying or acceding to international human rights conventions.

关键词： parliament Human Rights Council Universal Periodic Review the United Nations

A simple and sensitive assay for apurinic/apyrimidinic endonuclease 1activity based on host-guest interaction of β-cyclodextrin polymer and pyrene

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Chinese Chemical Letters 2018年第6期29卷 973-976页

作者： Maogui Zhou Shiya Qin Zhenzhen Feng Chunxia Song Hua Zhang Wenshan Li Qing Wang jianbo liu Jin Huang Xiaohai Yang Kemin Wang State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical Engineering Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province Hunan University School of Science Anhui Agricultural University

Apurinic/apyrimidinic endonuclease 1（APE1） plays an important role in protecting the fidelity of genetic material and is also a promising biomarker of cancers. Herein, a simple and sensitive fluorescent method for APE1 activity detection was designed based on host-guest interaction between β-cyclodextrin polymer（β-CDP） and pyrene. In this method, pyrene-labelled DNA probes（AP-S1 S2） and β-CDP functioned as fluorescent signal producer and enhancer, respectively. When APE1 was absent, pyrene on the AP-S1 S2 could not enter the cavity of β-CDP because of steric hindrance, leading to a weak fluorescence intensity/anisotropy. When APE1 was present, it would recognize and cleave AP site in APS1 S2, thus producing a dissociated pyrene-labelled oligonucleotide segment. Pyrene labelled at the 50 end of oligonucleotide segment could be easily trapped into the cavity of β-CDP via host-guest interaction, leading to a significant enhancement of fluorescence intensity/anisotropy. This assay offered a dynamic range of 0.05 U/m L–5 U/m L and an estimated detection limit of 0.05 U/m L. Furthermore,assessment of APE1 activity in He La cell extracts was successfully implemented, which hold the potential for APE1-related cancer diagnosis and biological researches.

关键词： APE1 Host-guest interaction Fluorescence β-Cyclodextrin polymer Pyrene

Design of Lipophilic Split Aptamers as Artificial Carriers for Transmembrane Transport of Adenosine Triphosphate

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CCS Chemistry 2021年第11期3卷 144-153页

作者： Qiaoshu Chen Meiling Jian Hui Chen Bing Zhou Hui Shi Xiaohai Yang Kemin Wang jianbo liu State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringKey Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan ProvinceHunan UniversityChangsha 410082

Transmembrane transport plays an important role in many physiological functions,and mimicking this biological process in artificial systems has potential applications in biosensing,drug delivery,and bionic ***,a lipophilic split aptamer was developed as a novel transmembrane carrier for adenosine triphosphate(ATP)*** ATP carrier comprises two split aptamer fragments and cholesterol tags,with the split aptamers acting as targetrecognition domains to enhance their specific binding capability and the cholesterol tags as hydrophobic domains to facilitate membrane *** unilamellar vesicle experiments demonstrated that the ATP carrier-mediated transmembrane transport was concentration-and time-dependent and showed high transport ***,the artificial carriers were applicable to living cells and facilitated rapid cell internalization of fluorescencelabeled ***,carrier-mediated ATP transport into ATP-deficient cells enabled recovery of cellular ATP levels and improved cell *** study demonstrated the efficacy of an aptamer nanostructure for designing DNA-based synthetic carriers with high selectivity and flexibility.

关键词： DNA aptamer adenosine triphosphate transmembrane transportation artificial carrier mass transportation

Mid-Range Wireless Power Transfer and Its Application to Body Sensor Networks

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Open Journal of Applied Sciences 2012年第1期2卷 35-46页

作者： Fei Zhang jianbo liu Zhihong Mao Mingui Sun Department of Neurosurgery University of Pittsburgh Pittsburgh USA

It has been reported that, through the evanescent near fields, the strongly coupled magnetic resonance is able to achieve an efficient mid-range Wireless Power Transfer (WPT) beyond the characteristic size of the resonator. Recent studies on of the relay effect of the WPT allow more distant and flexible energy transmission. These new developments hold a promise to construct a fully wireless Body Sensor Network (wBSN) using the new mid-range WPT theory. In this paper, a general optimization strategy for a WPT network is presented by analysis and simulation using the coupled mode theory. Based on the results of theoretical and computational study, two types of thin-film resonators are designed and prototyped for the construction of wBSNs. These resonators and associated electronic components can be integrated into a WPT platform to permit wireless power delivery to multiple wearable sensors and medical implants on the surface and within the human body. Our experiments have demonstrated the feasibility of the WPT approach.

关键词： Body Sensor Network Strongly Coupled Magnetic Resonance Wireless Power Transfer Coupled Mode Theory Relay Effect

Technical research on control of caisson construction for the middle tower foundation of Taizhou Bridge

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Engineering Sciences 2011年第2期9卷 9-13,45页

作者： liu jianbo Yang Yanhua Zhang Yongtao Du Song Key Lab of Large-Span Bridge Construction Technology Ministry of CommunicationWuhan 430014 China

The real-time informational monitoring system is adopted in the construction of middle tower foundation of Taizhou Bridge for the first time. The geometric state of the caisson, the stress of upstream and downstream anchorage cables, underwater topography, the drag forces of the caisson cutting edge and frictional resistances of the sidewall and etc. are monitored in real time. According to the synthesized data analysis and decision-making system, the spatial states of the caisson are adjusted in time to locate and embed the deep water caisson precisely. The offset error of the caisson is less than 30 cm and the vertical error is 1/363 at the final stage. The control technology for construction of large caisson under deep water is concluded and would be helpful for the construction of bridge foundation in the future.

关键词： Taizhou Bridge caisson foundation control technology real-time monitoring system

Implementation of Wireless Gateway for Smart Home

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Communications and Network 2013年第1期5卷 16-20页

作者： Yepeng Ni Fang Miao jianbo liu Jianping Chai Computer and Network Center Communication University of China Beijing China Information Engineering School Communication University of China Beijing China

In recent years, the ZigBee network has been rapid develop in smart home. In order to solve the interconnection problem between the ZigBee network and the internet in the smart home, a wireless home gateway based on embedded is designed and implemented in this paper. The gateway is made up of the main controller S3C2440, the ZigBee module JN5148 and the Wi-Fi module VT6656. It is capable of converting Wi-Fi protocol data or ZigBee protocol data, and transmitting them to each other. The paper describes the design and implementation process of the gateway hardware and software, introduces the Wi-Fi protocol data and the ZigBee protocol data conversion method, and solve the bottleneck caused by the two protocol different transmission rates. Then the performance of the gateway is tested, and the results indicate that the performance is stable, and the Wi-Fi–ZigBee gateway is completely meeting the needs of the smart home.

关键词： ZigBee Wi-Fi Smart Home S3C2440 JN5148 VT6656

Mining Condensed Non-Redundant Level-Crossing Approximate Association Rules

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Mining Condensed Non-Redundant Level-Crossing Approximate As...