Search Results - "He, Shengyi"

Self-agglomeration mechanism of iron nanoparticles in a fluidized bed by Li, Jun, Kong, Jing, He, Shengyi, Zhu, Qingshan, Li, Hongzhong

“…[Display omitted] •A force balance model coupled with the reduction kinetics of Fe2O3 is first proposed.•The model elucidates the reason for the prevention of…”
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Direct reduction of fine iron ore concentrate in a conical fluidized bed by He, Shengyi, Sun, Haoyan, Hu, Chaoquan, Li, Jun, Zhu, Qingshan, Li, Hongzhong

“…The direct utilization of fine iron ore concentrate in fluidized beds is of significance but has the problem of defluidization during operation. In this study,…”
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Effects of Low-temperature Pre-oxidation on the Titanomagnetite Ore Structure and Reduction Behaviors in a Fluidized Bed by Adetoro, Ajala Adewole, Sun, Haoyan, He, Shengyi, Zhu, Qingshan, Li, Hongzhong

“…With respect to high efficient utilization of low-grade iron ore resource, the behavior of low-temperature “973 K to 1123 K (700 °C to 850 °C)” oxidation, on…”
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Effects of gas composition and temperature on the fluidization characteristics of carbon-coated iron ore by Lei, Chao, He, Shengyi, Du, Zhan, Pan, Feng, Zhu, Qingshan, Li, Hongzhong

“…To reduce the carbon content in the direct reduction iron (DRI) obtained via the two-step fluidized bed reduction process, we investigated the…”
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Higher-order coverage errors of batching methods via Edgeworth expansions on t-statistics by He, Shengyi, Lam, Henry

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Batching on Biased Estimators by He, Shengyi, Lam, Henry

“…Existing batching methods are designed to cancel the variability parameter but not the bias of estimators, and thus are applied typically in the setting of…”
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Higher-Order Coverage Error Analysis for Batching and Sectioning by He, Shengyi, Lam, Henry

“…While batching and sectioning have been widely used in simulation, it is open regarding their higher-order coverage behaviors and whether one is better than…”
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Statistically Efficient Methods for Computation-Aware Uncertainty Quantification and Rare-Event Optimization by He, Shengyi

“…The thesis covers two fundamental topics that are important across the disciplines of operations research, statistics and even more broadly, namely stochastic…”
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Mechanism of surface morphology evolution in the reduction of fine iron ore in a conical fluidized bed reactor by Zhang, Xu, He, Shengyi, Sun, Haoyan, Zhu, Qingshan, Li, Jun, Li, Hongzhong

“…[Display omitted] •Surface morphology of fine iron ore particles was investigated in a conical fluidized bed.•Regime diagrams of morphology were obtained to…”
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CFD simulations of tapered bubbling/turbulent fluidized beds with/without gas distributor based on the structure-based drag model by Zou, Zheng, Liu, Wenming, Yan, Dong, Xie, Zhaohui, Li, Hongzhong, Zhu, Qingshan, He, Shengyi

“…•The simulation of TFB is conducted by using the structure-based drag model.•The heterogeneous drag index for TFB includes the gas voidage and velocity.•The…”
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Importance Sampling for Rare-Event Gradient Estimation by Bai, Yuanlu, He, Shengyi, Lam, Henry, Jiang, Guangxin, Fu, Michael C.

“…Importance sampling (IS) is a powerful tool for rare-event estimation. However, in many settings, we need to estimate not only the performance expectation but…”
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Statistically Optimal Uncertainty Quantification for Expensive Black-Box Models by He, Shengyi, Lam, Henry

“…Uncertainty quantification, by means of confidence interval (CI) construction, has been a fundamental problem in statistics and also important in risk-aware…”
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Higher-Order Coverage Errors of Batching Methods via Edgeworth Expansions on $t$-Statistics by He, Shengyi, Lam, Henry

“…While batching methods have been widely used in simulation and statistics, it is open regarding their higher-order coverage behaviors and whether one variant…”
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Higher-Order Expansion and Bartlett Correctability of Distributionally Robust Optimization by He, Shengyi, Lam, Henry

“…Distributionally robust optimization (DRO) is a worst-case framework for stochastic optimization under uncertainty that has drawn fast-growing studies in…”
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TALK-Act: Enhance Textural-Awareness for 2D Speaking Avatar Reenactment with Diffusion Model by Guan, Jiazhi, Yang, Quanwei, Wang, Kaisiyuan, Zhou, Hang, He, Shengyi, Xu, Zhiliang, Feng, Haocheng, Ding, Errui, Wang, Jingdong, Xie, Hongtao, Zhao, Youjian, Liu, Ziwei

“…Recently, 2D speaking avatars have increasingly participated in everyday scenarios due to the fast development of facial animation techniques. However, most…”
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Adaptive Importance Sampling for Efficient Stochastic Root Finding and Quantile Estimation by He, Shengyi, Jiang, Guangxin, Lam, Henry, Fu, Michael C

“…In solving simulation-based stochastic root-finding or optimization problems that involve rare events, such as in extreme quantile estimation, running crude…”
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ReSyncer: Rewiring Style-based Generator for Unified Audio-Visually Synced Facial Performer by Guan, Jiazhi, Xu, Zhiliang, Zhou, Hang, Wang, Kaisiyuan, He, Shengyi, Zhang, Zhanwang, Liang, Borong, Feng, Haocheng, Ding, Errui, Liu, Jingtuo, Wang, Jingdong, Zhao, Youjian, Liu, Ziwei

“…Lip-syncing videos with given audio is the foundation for various applications including the creation of virtual presenters or performers. While recent studies…”
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Certifiable Deep Importance Sampling for Rare-Event Simulation of Black-Box Systems by Arief, Mansur, Bai, Yuanlu, Ding, Wenhao, He, Shengyi, Huang, Zhiyuan, Lam, Henry, Zhao, Ding

“…Rare-event simulation techniques, such as importance sampling (IS), constitute powerful tools to speed up challenging estimation of rare catastrophic events…”
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Deep Probabilistic Accelerated Evaluation: A Robust Certifiable Rare-Event Simulation Methodology for Black-Box Safety-Critical Systems by Arief, Mansur, Huang, Zhiyuan, Kumar, Guru Koushik Senthil, Bai, Yuanlu, He, Shengyi, Ding, Wenhao, Lam, Henry, Zhao, Ding

“…Evaluating the reliability of intelligent physical systems against rare safety-critical events poses a huge testing burden for real-world applications…”
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Inhibition of caspase-1-dependent apoptosis suppresses peste des petits ruminants virus replication by Lingxia Li, Shengqing Li, Shengyi Han, Pengfei Li, Guoyu Du, Jinyan Wu, Xiaoan Cao, Youjun Shang

“…Background: Peste des petits ruminants (PPR), caused by the PPR virus (PPRV), is an acute and fatal contagious disease that mainly infects goats, sheep, and…”
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