Results 91 to 100 of about 12,379 (256)
Optimisation of solar sail interplanetary heteroclinic connections
, 2014 This paper investigates time-optimal solar sail trajectories between displaced Libration Point Orbits (LPOs) of different circular restricted three-body systems.
Heiligers, Jeannette +2 more
core
Second order cone programming for frictional contact mechanics using interior point algorithm
International audienceWe report experiments of an implementation of a primal-dual interior point algorithm for solving mechanical models of one-sided contact problems with Coulomb friction.
Armand, Paul +3 more
core +1 more source
Solving symmetric indefinite systems in an interior-point method for second order cone programming [PDF]
, 2002 Many optimization problems can be formulated as second order cone programming (SOCP) problems. Theoretical results show that applying interior-point method (IPM) to SOCP has global polynomial convergence.
Freund, Robert M. +2 more
core
A Portable and Dual‐Button Microneedle Device Enables Intelligent Multimodal Laser Sensing
Advanced Science, EarlyView.A portable and dual‐button microneedle device enables rapid interstitial fluid sampling. Coupled with multimodal laser sensing and AI‐assisted data processing, the platform enables simultaneous molecular and elemental analysis for minimally invasive and multiplexed health assessment toward point‐of‐care diagnostics.
Yuanchao Liu +12 more
wiley +1 more source
Interior proximal methods and central paths for convex second-order cone programming [PDF]
, 2010 We make a unified analysis of interior proximal methods of solving convex second-order cone programming problems. These methods use a proximal distance with respect to second-order cones which can be produced with an appropriate closed proper univariate ...
Jein-Shan Chen, Shaohua Pan
core
Advanced Science, EarlyView.This work reports a thermally safe, photothermally reprogrammable magnetic soft robot with its reprogramming temperature tuned to ∼39.5°C for biocompatibility. It achieves multimodal locomotion (max speed of 1.8 BL/s) and integrates liquid‐metal capacitive sensing to monitor self‐motion and detect environmental changes in simulated gastric environments,
Liu Yang +5 more
wiley +1 more source
Advanced Science, EarlyView.This study reveals a conserved half‐open active pocket in Fe(II)/α‐ketoglutarate‐dependent dioxygenases through protein structuromics, distinguished by structural features comprising highly flexible loop elements. Enhanced sampling simulations‐guided mutagenesis experiments elucidated how this flexible loop regulates pocket open/closed conformations ...
Lunjie Wu +10 more
wiley +1 more source
Advanced Science, EarlyView.Stem cell differentiation follows a conserved surface condensate trajectory: H3K27ac super enhancers nucleate large RNA polymerase II clusters that grow and unfold before transcriptional activity disperses them. This work reveals how biophysical forces at enhancer surfaces dynamically build and dismantle stem cell transcription hubs, reshaping cell ...
Tim Klingberg +18 more
wiley +1 more source
Advanced Science, EarlyView.Fully programmable, in‐process 3D magnetization integrated with multi‐material printing enables soft magnetic systems with precise actuation and sensing. Discrete and continuous magnetization profiles drive bending, morphing, and locomotion, demonstrated through strain‐sensing elements, dragonfly‐inspired wings, octopus‐like tentacles, and a serpentine
Phillip Glass +5 more
wiley +1 more source
Convex Operators in Vector Optimization: Directional Derivatives and the Cone of Decrease Directions [PDF]
, 1999 The paper is devoted to the investigation of directional derivatives and the cone of decrease directions for convex operators on Banach spaces. We prove a condition for the existence of directional derivatives which does not assume regularity of the ...
Topchishvili, Alexander L. +2 more
core