Ran Bi

ORCID: 0000-0003-2750-691X
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Research Areas
  • Energy Efficient Wireless Sensor Networks
  • IoT and Edge/Fog Computing
  • Multi-Criteria Decision Making
  • Age of Information Optimization
  • Real-Time Systems Scheduling
  • Quality Function Deployment in Product Design
  • Evaluation and Optimization Models
  • Distributed Sensor Networks and Detection Algorithms
  • Embedded Systems Design Techniques
  • Security in Wireless Sensor Networks
  • IoT Networks and Protocols
  • Advancements in Battery Materials
  • Reservoir Engineering and Simulation Methods
  • Advanced Battery Materials and Technologies
  • ERP Systems Implementation and Impact
  • Hydraulic Fracturing and Reservoir Analysis
  • Distributed systems and fault tolerance
  • Advanced Sensor and Control Systems
  • Gaze Tracking and Assistive Technology
  • Anomaly Detection Techniques and Applications
  • Mobile Crowdsensing and Crowdsourcing
  • Cloud Computing and Resource Management
  • Gene expression and cancer classification
  • Advanced Algorithms and Applications
  • Evaluation Methods in Various Fields

Research Institute of Petroleum Exploration and Development
2021-2025

Beijing Institute of Technology
2024

Southern University of Science and Technology
2023-2024

South China University of Technology
2018-2024

Northeastern University
2024

Yangtze University
2024

Tsinghua University
2024

Texas Tech University
2024

Midea Group (China)
2024

Dalian University of Technology
2008-2023

Abstract Lithium–oxygen (Li–O 2 ) batteries are attracting more attention owing to their superior theoretical energy density compared conventional Li‐ion battery systems. With regards the catalytically electrochemical reaction on a cathode, electrocatalyst plays key role in determining performance of Li–O batteries. Herein, new 3D hollow α‐MnO framework (3D with porous wall assembled by hierarchical nanowires is prepared template‐induced hydrothermal and subsequent annealing treatment. Such...

10.1002/smll.201804958 article EN publisher-specific-oa Small 2019-02-04

Mobile-edge computing casts the computation-intensive and delay-sensitive applications of mobile devices onto network edges. Task offloading incurs extra communication latency energy cost, extensive efforts have focused on schemes. Many metrics system utility are defined to achieve satisfactory quality experience. However, most existing works overlook balance between throughput fairness. This study investigates problem finding an optimal scheme in which objective optimization aims maximize...

10.26599/tst.2019.9010062 article EN Tsinghua Science & Technology 2020-07-24

Hollow NiS<sub>2</sub>@G spheres assembled from graphene layer coated NiS<sub>2</sub> nanoparticles were prepared <italic>via</italic> one-step calcination of Ni-MOFs involving simultaneous carbonization and sulfidation for enhanced Na<sup>+</sup> storage.

10.1039/c8ta05554h article EN Journal of Materials Chemistry A 2018-01-01

With the development of petroleum industry and advancements in technology, gas injection techniques have gradually matured become an important means to enhance oil recovery reservoir development. Gas channeling is a major challenge process The presence can lead decrease swept volume flooding, severely affecting effectiveness This paper focuses on low-permeability reservoirs, comprehensively analyzing characteristics reservoirs dynamic flooding production. It selects evaluates indicators for...

10.3390/en17163908 article EN cc-by Energies 2024-08-08

The mobile devices can send jobs to be processed at one of the nearby edge servers rather than remote cloud server with low latency in computing systems. One key problem such environment is how assign so that completion time minimized. In this article, we propose a general model for by considering arbitrary arriving jobs, different processing speeds servers, uploading job and delay returning result back device. Our goal minimize total response complete all jobs. We study series instances...

10.1109/tnse.2019.2958281 article EN IEEE Transactions on Network Science and Engineering 2020-04-13

Production line selection is evaluated as a critical factor in enterprise resource planning (ERP). There may be dependence and feedback among factors of production evaluation indices system. In this study, analytic network process (ANP) was adopted to model multi-criteria system with feedback. Due complexity assessing system, it difficult for decision-makers provide exact numerical values the factors. Therefore, fuzzy ANP method taken calculate weights sub-factors model, which can solve...

10.1109/ical.2008.4636410 article EN 2008-09-01

This paper provides a general framework to assess the output and debt dynamics of an economy undertaking multi-year fiscal adjustment.The allows country-specific assumptions about magnitude persistence multipliers, hysteresis effects, endogenous financing costs.In addition informing macro projections, can also shed light on appropriate phasing consolidation-in particular, whether it should be front-or back-loaded.The is applied stylized advanced emerging examples.It suggests that for...

10.5089/9781484318669.001 article EN IMF Working Paper 2013-01-01

Mobile edge computing enables users to run resource-intensive applications at the network equipped with small server clusters. The mobile services are heterogeneous and servers generally resource-limited. Only a subset of can be processed by an in time slot. In this paper, we study joint service placement computation scheduling (JSPCS) problem optimize both quality operation cost. We formulate optimization maximize worst utility among all services, under constraints multiple types resources,...

10.1109/icws55610.2022.00022 article EN 2022-07-01

Harmful algal blooms (HABs) pose a global threat to the biodiversity and stability of local aquatic ecosystems. Rapid accurate classification microalgae cyanobacteria in water is increasingly desired for monitoring complex environments. In this paper, we propose pulse feature-enhanced (PFEC) method as potential solution. Equipped with rapid measurement prototype that simultaneously detects polarized light scattering fluorescence signals individual particles, PFEC allows extraction 38...

10.3390/bios14040160 article EN cc-by Biosensors 2024-03-28

Constructing high-performance coordination polymer (CP) cathodes for lithium-ion batteries based on the redox reactions of both high-potential transition metal ions and high-capacity organic ligands has attracted extensive attention. However, CP suffer from structural degradation, low electrical conductivity, sluggish diffusion kinetics, resulting in poor cycling stability inferior rate capability. Herein, ultrafine FeTHBQ (THBQ = tetrahydroxy-1,4-benzoquinone) nanoparticles situ grew sides...

10.1021/acsami.4c12719 article EN ACS Applied Materials & Interfaces 2024-10-21

Directed acyclic graph (DAG) becomes a popular model for modern real-time embedded software. It is really challenge to bound the worst-case response time (WCRT) of DAG task. Parallelism, dependencies and mutual exclusion become three most critical properties parallel tasks. Recent work applied prioritizing techniques reduce task's WCRT bound, which has well studied first two properties, i.e., parallelism dependencies, but leaves mutually exclusive property as an open problem. This paper...

10.1109/rtss55097.2022.00046 article EN 2022-12-01

With widespread use of common-off-the-shelf components and the drive towards connection with external environments, real-time systems are facing more security problems. In particular, vulnerable to schedule-based attacks because their predictable deterministic nature in operation. this paper, we present a security-aware scheduling scheme counteract by preventing untrusted tasks from executing during attack effective window (AEW). order minimize AEW coverage ratio for system uncertain size,...

10.1145/3609098 article EN ACM Transactions on Embedded Computing Systems 2023-09-09

Knowledge management is considered as a critical process in organizations. With the scope of this paper, 4 first-level indices and 16 second-level were chosen to construct knowledge evaluation index system on basis research both domestic international management. A new appraisal method—analytic network (ANP) has been adopted model multi-criteria performance feedback system. Theoretical foundations application processes ANP discussed dependence among analyzed. The result for was obtained with...

10.1109/icmlc.2008.4620414 article EN International Conference on Machine Learning and Cybernetics 2008-07-01

Information technology develops faster and faster, while the information talent have become more important than ever. The Analytic Network Process (ANP) was used in paper for evaluation of personnel. ANP is a feedback interdependence process developed on basis AHP SD software to calculate model. Evaluation results obtained can give suggestions decision makers.

10.4028/www.scientific.net/kem.439-440.749 article EN Key engineering materials 2010-06-01

We have previously found that Sirt2 enhanced the outgrowth of cellular processes and MBP expression in CG4 cells, where is suppressed by transcription factor Nkx2.2. However, detailed mechanism facilitating oligodendroglial cell differentiation remained unclear. In present study, we observed partially translocated into nuclei when cells were induced to differentiate. was detected at CpG island PDGFRα promoter via ChIP assay during process rather than state growth. deacetylated protein(s)...

10.1080/15384101.2019.1609818 article EN Cell Cycle 2019-04-25

Since the quantity and quality of DNA sequence directly affect accuracy efficiency computation, design is essential for computing. In order to improve reliability computing, there a rich literature targeting at generating sequences with lower similarity that can hybridize melting temperature. However, it not trivial both temperature sequence, since problem under constraints Hamming distance, secondary structure molecular thermodynamic known be NP-hard. For sake achieving generated we...

10.1109/access.2020.3047469 article EN cc-by IEEE Access 2020-12-25
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