Bao Guo
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View article: Scaling Offline RL via Efficient and Expressive Shortcut Models
Scaling Offline RL via Efficient and Expressive Shortcut Models Open
Diffusion and flow models have emerged as powerful generative approaches capable of modeling diverse and multimodal behavior. However, applying these models to offline reinforcement learning (RL) remains challenging due to the iterative na…
View article: Mobile-MMLU: A Mobile Intelligence Language Understanding Benchmark
Mobile-MMLU: A Mobile Intelligence Language Understanding Benchmark Open
Rapid advancements in large language models (LLMs) have increased interest in deploying them on mobile devices for on-device AI applications. Mobile users interact differently with LLMs compared to desktop users, creating unique expectatio…
View article: Failure Mode and Effect Analysis Using Interval Type-2 Fuzzy and Multiple-Criteria Decision-Making Methods
Failure Mode and Effect Analysis Using Interval Type-2 Fuzzy and Multiple-Criteria Decision-Making Methods Open
In recent years, Failure Mode and Effects Analysis (FMEA) has become an essential preventive tool widely applied across various fields. As a structured system analysis method, FMEA aids in identifying potential failure modes in product or …
View article: Experimental analysis of the pressure fluctuations for a prototype pump-turbine at different operating conditions
Experimental analysis of the pressure fluctuations for a prototype pump-turbine at different operating conditions Open
The pressure fluctuations are one of the crucial instabilities detrimental to the stable operation of pump turbines. The fluctuations are periodic and stochastic. They naturally exist in all kinds of operating conditions and cannot be elim…
View article: Analysis and visualization of progressive erosion in Pelton buckets
Analysis and visualization of progressive erosion in Pelton buckets Open
Hydropower plants operating in fragile mountainous regions face severe hydro-abrasive erosion of hydraulic components, which results in drop in efficiency, frequent interruptions in power generation and downtime for repair/replacement. Due…
View article: Design and hydraulic analysis of a multiphase pump
Design and hydraulic analysis of a multiphase pump Open
With the development of offshore oilfields, foreign companies and research institutes spend plenty of resources on the research of subsea multiphase pump. The helico-axial multiphase pump is generally characterized by large flow and high h…
View article: Numerical Analysis of Sand Erosion for a Pelton Turbine injector at High Concentration
Numerical Analysis of Sand Erosion for a Pelton Turbine injector at High Concentration Open
Hydro-abrasive erosion due to sediment flow often leads to the efficiency loss, seriously vibration, and sometimes even failure for Pelton turbines. This kind of erosion can be greatly intensified when the concentration of sand increases. …
View article: Biorefinery of Microalgae via Combination of Pulsed Electric Field Treatment and Hydrothermal Liquefaction - A Techno-Economic Assessment
Biorefinery of Microalgae via Combination of Pulsed Electric Field Treatment and Hydrothermal Liquefaction - A Techno-Economic Assessment Open
In a previous work by our group, pulsed electric field (PEF) pretreatment has been proposed as a promising technique for the extraction of high valued amino acids concentrates from microalgae S. almeriensis, and the following hydrothermal …
View article: Slurry Flow and Erosion Prediction in a Centrifugal Pump after Long-Term Operation
Slurry Flow and Erosion Prediction in a Centrifugal Pump after Long-Term Operation Open
After long-term operation, the material loss due to slurry erosion often leads to significant changes in the impeller geometry. This change can, in turn, affect the flow characteristics and the erosion mechanism in a centrifugal pump. To i…
View article: Numerical prediction of inflow conditions influence on low-head bulb turbines performance
Numerical prediction of inflow conditions influence on low-head bulb turbines performance Open
The bulb turbine is widely used in low-head hydropower stations. Due to its relatively short inflow channels, the flow patterns inside the turbines are easily affected by the upstream conditions. The oblique inflow may occur when then the …
View article: Numerical analysis of a Pelton runner water sheet flow under super-high head
Numerical analysis of a Pelton runner water sheet flow under super-high head Open
The hydraulic performance of Pelton turbine is different from reaction turbines due to its unsteady flow of rotating buckets with time and space. The water sheet flow in Pelton turbine is also very complex as the jet flow is often interact…
View article: Graded Ultra-Translucent Zirconia (5Y-PSZ) for Strength and Functionalities
Graded Ultra-Translucent Zirconia (5Y-PSZ) for Strength and Functionalities Open
Ultra-translucent zirconias are drawing immense attention due to their fascinating esthetic appearance. However, the high translucency came at the expense of diminishing strength along with the reduced ability of transformation toughening …
View article: Transverse phase space diagnostics for ionization injection in laser plasma acceleration using permanent magnetic quadrupoles
Transverse phase space diagnostics for ionization injection in laser plasma acceleration using permanent magnetic quadrupoles Open
We report the transverse phase space diagnostics for electron beams generated through ionization injection in a laser-plasma accelerator. Single-shot measurements of both ultimate emittance and Twiss parameters are achieved by means of per…
View article: Probing plasma wakefields using electron bunches generated from a laser wakefield accelerator
Probing plasma wakefields using electron bunches generated from a laser wakefield accelerator Open
Here, we show experimental results of probing the electric field structure of plasma wakes by using femtosecond relativistic electron bunches generated from a laser wakefield accelerator. Snapshots of laser-driven linear wakes in plasmas w…
View article: A comparative analysis of precipitation estimation methods for streamflow prediction
A comparative analysis of precipitation estimation methods for streamflow prediction Open
Surface hydrologic models are widely used for streamflow prediction, forecasting and for understanding hydrologic processes. They are also an important tool for contributing to the resolution of wider resource and environmental issues, pro…