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  1. No Access

    Chapter and Conference Paper

    Information Theory of Blockchain Systems

    In this paper, we apply the information theory to provide an approximate expression of the steady-state probability distribution for blockchain systems. We achieve this goal by maximizing an entropy function s...

    Quan-Lin Li, Yaqian Ma, **g-Yu Ma in Combinatorial Optimization and Applications (2024)

  2. No Access

    Article

    Risk factors for complications and incomplete resection after endoscopic resection for duodenal submucosal tumors

    Endoscopic resection (ER) has been used to remove submucosal tumors (SMTs) in recent years; however, duodenal ER is associated with high rates of immediate or delayed bleeding and perforation. Whether ER can b...

    Zi-Han Geng, Yan Zhu, Yi-Fan Qu, Pei-Yao Fu, Wei-Feng Chen in Surgical Endoscopy (2023)

  3. Article

    Open Access

    A single-cell transcriptional landscape of immune cells shows disease-specific changes of T cell and macrophage populations in human achalasia

    Achalasia is a rare motility disorder of the esophagus caused by the gradual degeneration of myenteric neurons. Immune-mediated ganglionitis has been proposed to underlie the loss of myenteric neurons. Here, w...

    Zu-Qiang Liu, Hao Dai, Lu Yao, Wei-Feng Chen, Yun Wang, Li-Yun Ma in Nature Communications (2023)

  4. No Access

    Article

    Clinical outcomes of endoscopic resection for the treatment of esophageal gastrointestinal stromal tumors: a ten-year experience from a large tertiary center in China

    Esophageal gastrointestinal stromal tumors (E-GISTs) are extremely rare and surgical resection is the recommended approach. However, surgical resection usually causes severe trauma that may result in significa...

    Jia-**n Xu, Tian-Yin Chen, Yan-Bo Liu, **ao-Yue Xu, Wei-Feng Chen in Surgical Endoscopy (2023)

  5. No Access

    Article

    Endoscopic resection and suturing methods for non-ampullary duodenal submucosal tumors: “mini-invasive” treatments that should never be underestimated

    To evaluate the effectiveness and safety of endoscopic resection and various suturing methods to treat non-ampullary duodenal submucosal tumors (NAD-SMTs).

    **-ting Gao, Sheng-li Lin, Pei-yao Fu, Quan-lin Li, Ming-yan Cai in Surgical Endoscopy (2023)

  6. No Access

    Article

    A prediction model and nomogram for technical difficulty of peroral endoscopic myotomy

    Peroral endoscopic myotomy (POEM) is a promising endoscopic technique for achalasia. We aimed to establish a regression model and develop a simple nomogram to predict the technical difficulty of POEM in a sing...

    **n-Yang Liu, Zi-Han Geng, Wei-Feng Chen, Mei-Dong Xu, Shi-Yao Chen in Surgical Endoscopy (2023)

  7. No Access

    Article

    Endoscopic mucosal resection of gastrointestinal polyps with a novel low-temperature plasma radio frequency generator: a non-inferiority multi-center randomized control study

    To evaluate the efficacy and safety of novel plasma radio frequency generator and its single-use polypectomy snares for endoscopic mucosal resection (EMR) of gastrointestinal (GI) polyps.

    Ming-Yan Cai, Liang Zhu, **ao-Yue Xu, Jia-**n Xu, Dan-Feng Zhang in Surgical Endoscopy (2023)

  8. No Access

    Article

    Endoscopic submucosal dissection for lesions involving the anastomosis after upper gastrointestinal surgery

    Endoscopic submucosal dissection (ESD) for anastomotic lesions is technically challenging due to severe fibrosis, deformity, staples, and limited space for procedure. We aimed to characterize the clinicopathol...

    Li Wang, Zu-Qiang Liu, **g-Zheng Liu, Li-Yun Ma, **ao-Qing Li in Surgical Endoscopy (2023)

  9. Article

    A complete algebraic solution to the optimal dynamic rationing policy in the stock-rationing queue with two demand classes

    In this paper, we study a stock-rationing queue with two demand classes by means of the sensitivity-based optimization, and develop a complete algebraic solution to the optimal dynamic rationing policy. We sho...

    Quan-Lin Li, Yi-Meng Li, **g-Yu Ma, Heng-Li Liu in Journal of Combinatorial Optimization (2023)

  10. Article

    Open Access

    Improving bowel preparation for colonoscopy with a smartphone application driven by artificial intelligence

    Optimal bowel preparation is a prerequisite for a successful colonoscopy; however, the rate of inadequate bowel preparation remains relatively high. In this study, we establish a smartphone app that assesses p...

    Yan Zhu, Dan-Feng Zhang, Hui-Li Wu, Pei-Yao Fu, Li Feng, Kun Zhuang in npj Digital Medicine (2023)

  11. No Access

    Article

    Matched Queues with Flexible and Impatient Customers

    In this paper, we consider a double-ended queue with First-Come-First-Match discipline (also known as matched queues) under customers’ flexible and impatient behaviors. Such a system can be expressed as a leve...

    Heng-Li Liu, Quan-Lin Li in Methodology and Computing in Applied Probability (2023)

  12. No Access

    Article

    Dockless bike-sharing systems with unusable bikes: removing, repair and redistribution under batch policies

    This paper discusses a large-scale dockless bike-sharing system (DBSS) with unusable bikes, which can be removed, repaired, redistributed and reused under two batch policies: one for removing the unusable bike...

    Rui-Na Fan, Quan-Lin Li, **aole Wu, Zhe George Zhang in Annals of Operations Research (2022)

  13. No Access

    Article

    Optimal dynamic mining policy of blockchain selfish mining through sensitivity-based optimization

    The security and fairness of blockchain are always threatened by selfish mining attacks. To study such selfish mining attacks, some necessary and useful methods need to be developed sufficiently. In this paper...

    **g-Yu Ma, Quan-Lin Li in Journal of Combinatorial Optimization (2022)

  14. No Access

    Article

    Landscape of esophageal submucosal tunneling endoscopic resection-related adverse events in a standardized lexicon: a large volume of 1701 cases

    Submucosal tunneling endoscopic resection (STER) has been widely applied for esophageal submucosal tumors. This large volume study aims to provide a standard landscape of STER-related AEs for reference.

    Jia-Qi Xu, Jia-**n Xu, **ao-Yue Xu, Lu Yao, Mei-Dong Xu, Shi-Yao Chen in Surgical Endoscopy (2022)

  15. No Access

    Article

    Stochastic performance modeling for practical byzantine fault tolerance consensus in the blockchain

    The practical Byzantine fault tolerant (PBFT) consensus mechanism is one of the most basic consensus algorithms (or protocols) in blockchain technologies. Thus its performance evaluation is an interesting and ...

    Fan-Qi Ma, Quan-Lin Li, Yi-Han Liu in Peer-to-Peer Networking and Applications (2022)

  16. No Access

    Article

    Long-term prognosis of small gastric gastrointestinal stromal tumors with high histological grade: a longitudinal nested cohort study

    Gastrointestinal stromal tumors (GIST) are mostly seen in the stomach. Clinical data on GISTs ≤ 2 cm with > 5 mitosis/50 HPFs are limited. This study aimed to analyze small GISTs with high histological grades ...

    Tian-Yin Chen, Jia-**n Xu, Wei-Feng Chen, Quan-Lin Li, Ming-Yan Cai in Surgical Endoscopy (2022)

  17. No Access

    Article

    A mean-field matrix-analytic method for bike sharing systems under Markovian environment

    This paper proposes a novel mean-field matrix-analytic method in the study of bike sharing systems, in which a Markovian environment is constructed to express time-inhomogeneity and asymmetry of processes that...

    Quan-Lin Li, Rui-Na Fan in Annals of Operations Research (2022)

  18. No Access

    Chapter and Conference Paper

    The Optimal Dynamic Rationing Policy in the Stock-Rationing Queue

    In this paper, we study a stock-rationing queue with two demand classes by means of the sensitivity-based optimization, and develop a complete algebraic solution for the optimal dynamic rationing policy. To do...

    Quan-Lin Li, Yi-Meng Li, **g-Yu Ma in Algorithmic Aspects in Information and Man… (2022)

  19. No Access

    Article

    Controlled hypertension under hemostasis prevents post-gastric endoscopic submucosal dissection bleeding: a prospective randomized controlled trial

    Endoscopic submucosal dissection (ESD) is a prominent minimally invasive operative technique for treating early gastrointestinal tumors but can result in postoperative bleeding. We conducted a randomized contr...

    Sheng-Li Lin, **-Ting Gao, Wen-Kai Ni, Quan-Lin Li, Wei-Feng Chen in Surgical Endoscopy (2021)

  20. Article

    Correction to: Nexus between agro-ecological efficiency and carbon emission transfer: evidence from China

    A Correction to this paper has been published: https://doi.org/10.1007/s11356-021-14461-w

    Usman Akbar, Quan-Lin Li in Environmental Science and Pollution Resear… (2021)

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