Li Geng

ORCID: 0000-0003-1974-6980
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About
Contact & Profiles
Research Areas
  • Indoor and Outdoor Localization Technologies
  • Energy Efficient Wireless Sensor Networks
  • RFID technology advancements
  • Target Tracking and Data Fusion in Sensor Networks
  • Distributed Sensor Networks and Detection Algorithms
  • Education and Work Dynamics
  • Higher Education and Teaching Methods
  • IoT-based Smart Home Systems
  • Robotics and Sensor-Based Localization
  • Human Mobility and Location-Based Analysis
  • Advanced Wireless Communication Techniques
  • Knowledge Management and Sharing
  • Water Quality Monitoring Technologies
  • E-commerce and Technology Innovations
  • Energy Harvesting in Wireless Networks
  • Mobile Ad Hoc Networks
  • Multimodal Machine Learning Applications
  • Human Pose and Action Recognition
  • Power Systems and Renewable Energy
  • Blockchain Technology Applications and Security
  • Web Data Mining and Analysis
  • Wikis in Education and Collaboration
  • Open Source Software Innovations
  • Urban Heat Island Mitigation
  • Land Use and Ecosystem Services

New York City College of Technology
2017-2024

City University of New York
2017-2024

Donghua University
2024

East China University of Science and Technology
2023

State Grid Corporation of China (China)
2023

Peking University
2008-2022

Xi'an Physical Education University
2022

Wuhan University of Technology
2009-2021

Henan Polytechnic University
2013-2021

Puer University
2020

Skp and SurA are both periplasmic chaperones involved in the biogenesis of Escherichia coli β-barrel outer membrane proteins (OMPs). It is commonly assumed that plays a major role whereas minor factor. However, there no molecular evidence for whether their roles redundant. Here, by using different dilution methods, we obtained monodisperse aggregated forms OmpC studied interactions with single-molecule fluorescence resonance energy transfer correlation spectroscopy. We found can dissolve...

10.1021/acschembio.8b00097 article EN ACS Chemical Biology 2018-03-15

This paper addresses the problem of indoor tracking tagged objects with Ultra High Frequency (UHF) Radio Identification (RFID) systems. A new and more realistic observation model system is proposed, where probability detecting a tag by reader described Beta distribution. We detection as function both distance angle between reader. The considered also accounts for possibility being in dead-zone, that is, space cannot be detected even if it well within range For tracking, we propose use...

10.1109/jstsp.2013.2286972 article EN IEEE Journal of Selected Topics in Signal Processing 2014-01-24

Purpose Academic social (question and answer) Q&A sites are now utilised by millions of scholars researchers for seeking sharing discipline-specific information. However, little is known about the factors that can affect their votes on quality an answer, nor how discipline might influence these factors. The paper aims to discuss this issue. Design/methodology/approach Using 1,021 answers collected over three disciplines (library information services, history art, astrophysics) in...

10.1108/ajim-11-2017-0246 article EN Aslib Journal of Information Management 2018-05-21

Single-molecule fluorescence measurements have been widely used to explore kinetics and dynamics of biological systems. Among them, single-molecule imaging (SMI) is good at tracking processes slower than tens milliseconds, whereas correlation spectroscopy (FCS) probing faster submilliseconds. However, there still shortage simple yet effective method cover the time-scale between submilliseconds milliseconds. To effectively bridge this millisecond gap, we developed a (smFCS) that works on...

10.1021/acs.jpclett.6b00720 article EN The Journal of Physical Chemistry Letters 2016-05-03

The shape of the Web in terms its graphical structure has been a widely interested topic. Two graphs, Bow Tie and Daisy, have stood out from previous research. In this work, we take different approach, by viewing as hierarchy three levels, namely page level, host domain level. Such structures are analyzed compared with snapshot Chinese early 2006, involving 830 million pages, 17 hosts, 0.8 domains. Some interesting results emerged. For example, appears more like teapot (with large size SCC,...

10.1145/1367497.1367692 article EN 2008-04-21

The proliferate unstructured data generated in online social networks leads to significant research advances the recognition of user profiles (e.g., age, gender, ethnicity, etc.), but meanwhile brings new challenges. These attributes are referred as soft biometrics and provide a semantic description users. Identifying users' biometric traits is crucial for variety applications such customized marketing, personalized recommendation, urban planning. Compared conventional studies, we address...

10.1109/wacvw.2017.8 article EN 2017-01-01

With the highly demand of large-scale and real-time weather service for public, a refinement short-time cloudage prediction has become an essential part forecast productions. To provide weather-service-compliant nowcasting, in this paper, we propose novel hierarchical Convolutional Long-Short-Term Memory network based deep learning model, which term as FORECAST-CLSTM, with new Forecaster loss function to predict future satellite cloud images. The model is designed fuse multi-scale features...

10.1109/vcip.2018.8698733 preprint EN 2018-12-01

Energy saving in buildings has attracted many researchers attention. One of the research topics is occupancy detection for each room to automatically control airconditioner, light, heating, etc. by monitoring temperature, humidity, and co <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> using corresponding sensors. For existing data analysis, traditional regression methods such as CART, RF, LDA are often used predict status after...

10.1109/wacvw.2017.10 article EN 2017-01-01

More and more online learning apps are emerging, thanks to the development of Internet plus education platforms. Learning efficacy is leading impactor participation. To avoid inefficiency poor effect learning, it necessary explore theory on relationship between self-efficacy improvement This paper examines influence Firstly, a general normal distribution map was drawn for self-efficacy. Then, prediction model established participation based series behaviors. In addition, k-means clustering...

10.3991/ijet.v17i01.28719 article EN International Journal of Emerging Technologies in Learning (iJET) 2022-01-20

Hybrid cognitive radio (CR) relays serve cellular users in a two-hop fashion to improve the network capacity-the communication with base station (BS) operates spectrum, while that unlicensed spectrum for dynamic access. In this letter, we present user association framework optimizes overall system downlink rate networks using hybrid CR relays, an emphasis on load balancing among BS and given dynamically changing available resources. Users select their preferred basis of link resource...

10.1109/lcomm.2016.2560818 article EN IEEE Communications Letters 2016-01-01

This paper proposes a new method for face recognition using Two Dimensional Locality Preserving Projection (2DLPP) in Discrete Wavelet Domain (DWT).Firstly, the dimensionality of original image is reduced by discrete wavelets transform and low frequency channel (LL) selected to be as features image.And then 2DLPP applied decrease dimension LL.Finally, nearest neighbour classifier used classification.The experiment results on ORL database demonstrate effectiveness proposed method.

10.2174/1874444301507011721 article EN The Open Automation and Control Systems Journal 2015-10-09

An important class of sensors is the directional sensors. These detect targets within a range and predefined direction. In this work, we assume that are deployed in sensor field, where at each node, there four collocated providing coverage 360°. The nodes broadcast only binary information, is, they transmit signal if one their detects target. When do not broadcast, it assumed have detected Each node can process measurements its own information received from other nodes. We study two setups,...

10.1109/aero.2011.5747437 article EN 2011-03-01

As the oldest venomous animals, centipedes use their venom as a weapon to attack prey and for protection. Centipede venom, which contains many bioactive pharmacologically active compounds, has been used centuries in Chinese medicine, shown by ancient records. Based on comparative analysis, we revealed diversity of differences centipede toxin-like molecules <i>between Scolopendra mojiangica</i>, substitute pharmaceutical material China, <i>S. subspinipes mutilans</i>. More than 6 000 peptides...

10.24272/j.issn.2095-8137.2020.019 article EN 动物学研究 2020-01-01

We investigate the problem of real-time self-tracking tagged objects in a new system with low-cost "smart" tags. These tiny and battery-less devices will play pivotal role infrastructure Internet Things (IoT). With capabilities low-power computation tag-to-tag backscattered communication, no readers be needed for running Radio Frequency Identification (RFID) system. In order to allow tags, has performed simple algorithms while still exhibiting high accuracy. this paper we propose linear...

10.1109/icassp.2015.7179025 article EN 2015-04-01

Urban planners have been long interested in understanding how urban structure and activities are mutually influenced. Human mobility economic naturally drive the formation of road network accessibility latter shapes patterns movement flow across space. In this paper, we perform an exploratory study on relationship between street intensity human areas. We focus two cities utilize a dataset geo-tagged tweets that can form proxy to corresponding networks as obtained from OpenStreetMap. apply...

10.3390/ijgi12010007 article EN cc-by ISPRS International Journal of Geo-Information 2022-12-28

Abstract The timing of the onset Taiwan sediment input to northern South China Sea (SCS) is still controversial even though many provenance proxies had been used. To analyze change since Late Miocene (11.63–0 Ma), we applied major-element-based R AK and KCN , combined with published clay mineral Sr–Nd isotope data, study near SCS slope. results show that significant began at ∼6.5 Ma in Miocene, consistent uplift. Moreover, Pearl River increased after ∼3.6 Ma, corresponding sea level fall...

10.1515/geo-2022-0454 article EN cc-by-nc-nd Open Geosciences 2022-01-01

Since the down hole operational environment is hostile, with serious potential safety hazards, it necessary to establish a perfect monitoring mechanism. As an entirely new communication carrier, wireless sensor network plays active role in of mine. The node localization technology foundation its application. Its accuracy has great influence on effect mine shaft communication. In randomly distributed network, traditional DV-Hop(Distance Vector-Hop) algorithm more error. this paper, original...

10.4028/www.scientific.net/amm.273.537 article EN Applied Mechanics and Materials 2013-01-01
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