Results 81 to 90 of about 179,091 (292)

Stable evaluation of Lefschetz thimble intersection numbers:Towards real-time path integrals

Physics Letters B
We introduce a robust numerical method for determining intersection numbers of Lefschetz thimbles in multivariable settings. Our approach employs the multiple shooting method to solve the upward flow equations from the saddle points to the original ...
Yutaro Shoji, Katarina Trailović
doaj   +1 more source

Radial Positive Solutions for p-Laplacian Supercritical Neumann Problems

Bruno Pini Mathematical Analysis Seminar, 2017
This paper deals with existence and multiplicity of positive solutions for a quasilinear problem with Neumann boundary conditions. The problem is set in a ball and admits at least one constant non-zero solution; moreover, it involves a nonlinearity that ...
Francesca Colasuonno, Benedetta Noris
doaj   +1 more source

Actuation of Cell Layers in Three Dimensions

Advanced Materials, EarlyView.
ABSTRACT The alignment of fibers and cells in living tissues affect their mechanical properties and functionality. In this context, one can draw an analogy between tissues and nematic liquid crystal elastomers. We explore this analogy by growing fibroblasts on 2D‐patterned substrates and observing the contraction of cell sheets upon detachment from the
Kirsten Endresen, Aniruddh Murali, Birte C. Geerds, Grecia M. Valenzuela Portillo, Maria Bloksgaard, Daniel J.G. Pearce, Francesca Serra   +6 more
wiley   +1 more source

Freeform Fabrication of Layered Halide Perovskite Nanowire Heterojunctions

Advanced Materials, EarlyView.
‘All‐at‐once’ freeform fabrication of layered perovskite nanowire heterojunctions is realized by 3D printing employing meniscus‐guided crystallization. The integration of nanoscale additive manufacturing with layered halide perovskites will provide a versatile platform to freely design and realize highly stable perovskite‐based optoelectronic ...
Sixi Cao, Yu Liu, Zhuofei Gan, Shiqi Hu, Jihyuk Yang, Zhuoran Wang, Mingjian Yuan, Wen‐Di Li, Ji Tae Kim   +8 more
wiley   +1 more source

Recent Progress in the Phase‐Controlled Synthesis of Ruthenium Nanocrystals for Catalytic Applications

Advanced Materials, EarlyView.
Template effect and kinetic control enable crystal‐phase engineering of Ru nanocrystals, granting access to either metastable fcc‐Ru or stable hcp‐Ru with distinct surface structures, thermal stabilities, and catalytic behaviors. Moreover, the hcp‐Ru can further serve as an epitaxial template to direct Pd and Rh nanocrystals into the metastable hcp ...
Jianlong He, Zhiqi Wang, Jiaqi Guan, Younan Xia   +3 more
wiley   +1 more source

Physical Condition as a Contribution of Shooting Accuracy with Flick Drag Technique

Active: journal of physical education, sport, health and recreation, 2018
The purpose of this study was to examine how much the contribution of grip strength, arm muscle power, flexibility togok, and eye and hand coordination to shooting accuracy with drag flick technique. This research uses correlational method. A total of 40
Kartika Septianingrum, Sugiyanto, Agus Kristiyanto, Nuril Lolita Hudayhana, Dhevana Pradika Yanda Putra   +4 more
doaj  

Anti‐Slip Material‐Based Strategies and Approaches

Advanced Materials Technologies, EarlyView.
This review highlights the principle mechanisms of slipping at the microscale, linking contact mechanics with a friction behavior model for surface interfaces. Main strategies to develop anti‐slip properties to the surfaces are discussed alongside standardized testing approaches.
Sogand Abbaspoor‐Zanjani, Carlo Antonini, Teresa Gatti, Mengjiao Wang   +3 more
wiley   +1 more source

Berthing Trajectory Tracking of Underactuated Surface Vehicle Based on NMPC and Position Estimation

IEEE Access
In order to realize waypoint-based automatic berthing alongside or astern, a generation algorithm of dynamic virtual ships is proposed to guide the underactuated surface vehicle (USV). In this paper, a nonlinear model predictive control (NMPC) problem is
Zuxin Wu, Baigang Zhao, Xu Han, Di Lu
doaj   +1 more source

MPC-Based Optimal Control for Diesel Engine Coupled with Lean NOx Trap System

SICE Journal of Control, Measurement, and System Integration, 2019
In this paper, an on-board optimal control problem for diesel engines with lean NOx trap (LNT) is investigated. First, a two-order LNT model based on mass conservation and energy conservation is constructed.
Fuguo Xu, Tielong Shen
doaj   +1 more source

A Numerical Slow Manifold Approach to Model Reduction for Optimal Control of Multiple Time Scale ODE [PDF]

, 2013
Time scale separation is a natural property of many control systems that can be ex- ploited, theoretically and numerically. We present a numerical scheme to solve optimal control problems with considerable time scale separation that is based on a model ...
Lebiedz, Dirk, Rehberg, Marcel
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