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Advances in optical trapping design principles have led to tremendous progress in manipulating nanoparticles (NPs) with diverse functionalities in different environments using bulky systems. However, efficient control and manipulation of…

Polyatomic molecules have rich structural features that make them uniquely suited to applications in quantum information science, quantum simulation, ultracold chemistry, and searches for physics beyond the Standard Model. However, a key…

In the current industry, the development of optimized mechanical components able to satisfy the customer requirements evolves quickly. Therefore, companies are asked for efficient solutions to improve their products in terms of stiffness…

计算工程、金融与科学 · 计算机科学 2023-07-31 Rafael Merli , Antolín Martínez-Martínez , Juan José Ródenas , Marc Bosch-Galera , Enrique Nadal

Optimization-based (OB) alternatives to traditional flux limiters couch preservation of properties such as local bounds and maximum principles into optimization problems, which impose these properties through inequality constraints. In this…

最优化与控制 · 数学 2024-12-30 Falko Ruppenthal , Denis Ridzal , Dmitri Kuzmin , Pavel Bochev

This paper considers the optimal design of input signals for the purpose of discriminating among a finite number of affine models with uncontrolled inputs and noise. Each affine model represents a different system operating mode,…

最优化与控制 · 数学 2019-01-03 Yuhao Ding , Farshad Harirchi , Sze Zheng Yong , Emil Jacobsen , Necmiye Ozay

Recent single-molecule pulling experiments have shown how it is possible to manipulate RNA molecules using optical tweezers force microscopy. We investigate a minimal model for the experimental setup which includes a RNA molecule connected…

统计力学 · 物理学 2009-11-10 Maria Manosas , Felix Ritort

The dynamic nature of proteins is crucial for determining their biological functions and properties, for which Monte Carlo (MC) and molecular dynamics (MD) simulations stand as predominant tools to study such phenomena. By utilizing…

定量方法 · 定量生物学 2024-03-13 Jiarui Lu , Bozitao Zhong , Zuobai Zhang , Jian Tang

This paper suggests two novel ideas to develop new proximal variable-metric methods for solving a class of composite convex optimization problems. The first idea is a new parameterization of the optimality condition which allows us to…

最优化与控制 · 数学 2018-12-14 Quoc Tran-Dinh , Liang Ling , Kim-Chuan Toh

Reinforcement learning is an emerging approach to control dynamical systems for which classical approaches are difficult to apply. However, trained agents may not generalize against the variations of system parameters. This paper presents…

系统与控制 · 电气工程与系统科学 2023-11-10 Abdel Gafoor Haddad , Igor Boiko , Yahya Zweiri

We propose a novel method for refining force-field parameters of protein systems. In this method, the agreement of the secondary-structure stability and instability between the protein conformations obtained by experiments and those…

生物物理 · 物理学 2013-01-08 Yoshitake Sakae , Yuko Okamoto

Using single-pixel detection, the end-to-end neural network that jointly optimizes both encoding and decoding enables high-precision imaging and high-level semantic sensing. However, for varied sampling rates, the large-scale network…

图像与视频处理 · 电气工程与系统科学 2022-01-11 Xinrui Zhan , Liheng Bian , Chunli Zhu , Jun Zhang

Policy optimization (PO) is a key ingredient for reinforcement learning (RL). For control design, certain constraints are usually enforced on the policies to optimize, accounting for either the stability, robustness, or safety concerns on…

最优化与控制 · 数学 2021-02-16 Kaiqing Zhang , Bin Hu , Tamer Başar

A data fitting procedure is devised and thoroughly tested to provide self-consistent estimates of the relevant mechanokinetic parameters involved in a plausible scheme underpinning the output of an ensemble of myosin II molecular motors…

We explain and demonstrate a new method of force- and position-calibration for optical tweezers with back-focal-plane photo detection. The method combines power spectral measurements of thermal motion and the response to a sinusoidal motion…

This paper proposes a robust dual-quaternion based H-infinity task-space kinematic controller for robot manipulators. To address the manipulator liability to modeling errors, uncertainties, exogenous disturbances, and their influence upon…

机器人学 · 计算机科学 2021-06-22 Luis Felipe Cruz Figueredo , Bruno Vilhena Adorno , João Yoshiyuki Ishihara

Fitting a matrix of a given rank to data in a least squares sense can be done very effectively using 2nd order methods such as Levenberg-Marquardt by explicitly optimizing over a bilinear parameterization of the matrix. In contrast, when…

计算机视觉与模式识别 · 计算机科学 2020-07-10 José Pedro Iglesias , Carl Olsson , Marcus Valtonen Örnhag

We consider a class of submodular maximization problems in which decision-makers have limited access to the objective function. We explore scenarios where the decision-maker can observe only pairwise information, i.e., can evaluate the…

数据结构与算法 · 计算机科学 2022-02-09 Andrew Downie , Bahman Gharesifard , Stephen L. Smith

Control of particle motion is generally achieved by applying an external field that acts directly on each particle. Here, we propose a global way to manipulate the motion of a particle by dynamically changing the properties of the fluid in…

软凝聚态物质 · 物理学 2024-11-11 Tali Khain , Michel Fruchart , Vincenzo Vitelli

In a Hilbert setting we aim to study a second order in time differential equation, combining viscous and Hessian-driven damping, containing a time scaling parameter function and a Tikhonov regularization term. The dynamical system is…

最优化与控制 · 数学 2024-04-24 Robert Ernö Csetnek , Mikhail A. Karapetyants

A crucial step in the regulation of gene expression is binding of transcription factor (TF) proteins to regulatory sites along the DNA. But transcription factors act at nanomolar concentrations, and noise due to random arrival of these…

分子网络 · 定量生物学 2016-02-10 Thomas R. Sokolowski , Aleksandra M. Walczak , William Bialek , Gašper Tkačik