Large language models (LLMs) have made breakthroughs in natural processing (NLP) and understanding, brought revolutions many other fields [1-4]. Inspired by those successes, several large cellular (LCMs) adopting similar structures of LLMs been developed for single-cell transcriptomics, including (but not limited to) scBERT [5], Geneformer [6], scGPT [7], scFoundation [8], GeneCompass [9]. The practices these shown LCMs' power potential various biological tasks illustrated the possibilities...

ABSTRACT Real‐time hybrid simulation (RTHS) is a promising experimental method to evaluate structural dynamics. It divides the be simulated structure into numerical substructure (NS) and physical (PS), has been lauded for its versatility cost‐effectiveness. In RTHS, transfer system used guarantee synchronization among substructures, resulting in fact that actuator control scheme plays vital role attaining high accuracy stability. This particularly true multi‐axial RTHS (maRTHS), where...

Summary Hybrid simulation is a powerful and cost‐effective technique to evaluate structural dynamic performance. However, it sometimes rather difficult guarantee all the boundaries on physical substructures, especially when boundary conditions are very complex, due limited laboratory resources. Lacking of bound change stress state structure eventually result in an inaccurate evaluation A model updating‐based online numerical method proposed this paper tackle problem incomplete conditions. In...

Online model updating in hybrid simulation (HS) can represent an effective technique to reduce modeling errors of parts numerically simulated, that is, numerical substructures, especially when only a few critical components large system be tested, physical substructures. As result, enhanced HS with online updating, parameters constitutive relationship identified based on experimental data provided by substructures and updated This paper proposes novel method identify concrete laws unscented...

To improve the experimental accuracy and stability of shaking table substructure testing (STST), an explicit central difference method (CDM) a three-variable control (TVCM) with velocity positive feedback (VPF) are proposed in this study. First, CDM is presented for obtaining improved boundary conditions between numerical substructures STST. Compared traditional CDM, can provide targets displacement, velocity, acceleration. Furthermore, TVCM-VPF to loading The effectiveness methods validated...

In this work, we developed a new mobile robotic platform named MOBIT (Mobile Robot of BIT) that combines wheels, legs and tracks to move with different locomotion modes in unstructured environment. Utilizing its independent actuated arms up down, many desired can be realized, which makes the robot good adaptability high capability obstacle negotiation for carrying out military civilian missions. paper, introduced simply body design modes, particularly, kinematics dynamics modeling tracked...

Abstract In quasi‐static and hybrid tests, accurate reproduction of structural responses often requires multi‐degree‐of‐freedom (multi‐DOF) loading methods. A successful method should not only be used on specific specimens for research purposes, but also applicable to all possible types specimen testing setups engineering purposes. However, different specimens, the concerned nodes DOFs differ in size, leading non‐uniform kinematic transformation between Cartesian system actuators/transducers...

In hybrid simulation, response time history measured from experimental substructure can be utilized to identify the model associated with tested specimen in real time. To improve modeling accuracy, updated parameters substitute initial of similar components (as specimen) that reside numerical substructure. this study, a detailed investigation on fidelity improvement using updating simulation is delivered. This study focused both local and global assessment (HSMU) by comparing HSMU...

The permanent magnet synchronous generator (PMSG) for wind turbine system operating under inevitable stochastic disturbance from power is a nonlinear dynamical system. With the random interaction and nonlinearity, intense oscillation likely to happen in such system, causing be unstable or even collapse. However, PMSG usually considered as deterministic when analyzing its dynamic behaviors past researches. Such simplification can lead wrong predictions stability reliability. This paper aims...

Recently, Z. Ditzian gave an interesting direct estimate for Bernstein polynomials. In this paper we give and inverse results of type linear combinations

Hybrid simulation (HS) is a versatile tool for structural performance evaluation under dynamic loads. Although real responses are often multiple-directional owing to an eccentric mass/stiffness of the structure and/or excitations not along major axes, few HS in this field takes into account multiple directions. Multi-directional loading more challenging than uni-directional as there nonlinear transformation between actuator and specimen coordinate systems, increasing difficulty suppressing...

In the present paper, we focus on microscopic description in finite extensible nonlinear elasticity (FENE) systems for polymeric fluids. Based study of an initial boundary value problem degenerate parabolic equations prove existence global smooth solutions some weighted spaces to FENE model if nondimensional parameter $b>2$. The regularity obtained here is intrinsic and might be best one.

One potential solution to the issue of hunting instability high-speed trains is install dampers. However, nonlinearity dampers and their interaction with train present significant challenges in accurately analyzing dynamic behaviors both trains. To address these challenges, we investigate a real-time hybrid simulation (RTHS) for This innovative approach combines numerical model full-scale physical damper, providing versatile method simulating various behaviors. The incorporates 17 degrees...

One favorable solution to the issue of hunting instability high‐speed trains is install dampers. However, nonlinearity dampers and their interaction with a train present significant challenges in accurately analyzing dynamic behaviors both trains. To address these challenges, we investigate real‐time hybrid simulation (RTHS) for propose an improved two‐stage adaptive time‐delay compensation method resolve its demanding delay issue. This innovative approach combines numerical model full‐scale...

Approximation theory experienced a long term history. Since 50’ last century, the rise of spline function as well advance calculation promotes growth classical approximation and makes them develop profound in maths, application values have shown among field scientific engineering technology etc. At present, study had made great progress lot fruits, for that, reader could look up book [1] or [2]. Nevertheless, research staff pays less attention to exponential function, since polynomial is...