Results 41 to 50 of about 196 (190)

Total fatigue life analysis of a nodular cast iron plate specimen with a center notch

Advances in Mechanical Engineering, 2017
The crack initiation and propagation phases of the fatigue life of a plate specimen with a center hole are analyzed. The local transient stress–strain relationship is investigated by means of finite element simulations with a nonlinear kinematic ...
Márton Gróza, Károly Váradi
doaj   +1 more source

Microsphere‐Modulated Sensing‐in‐Energy Supercapacitor With Self‐Filtering Ultra‐Large Signal Under High‐g Shocks

Advanced Science, EarlyView.
To overcome severe signal oscillation under extreme impact conditions, this work presents a Sensing‐in‐Energy microdevice which integrates a MEMS inertial structure directly within a supercapacitor electrolyte cavity. Utilizing shock‐driven transient contact and electrolyte damping for signal self‐filtering, it achieves weak‐oscillation, large ...
Zhihao Zheng, Yiqun Wang, Kaiyou Liu, Shancheng Luan, Yajiang Yin, Xiaofeng Wang, Keren Dai, Zheng You   +7 more
wiley   +1 more source

Rolling Contact Fatigue Life of Rail for Different Slip Conditions

Latin American Journal of Solids and Structures
A three-dimensional elastic-plastic finite element analysis (FEA) is carried out to estimate the rolling contact fatigue (RCF) crack initiation life for varied slip range on the rail arising from operational variations.
Jay Prakash Srivastava, Prabir Kumar Sarkar, V R Kiran Meesala, Vinayak Ranjan   +3 more
doaj   +1 more source

Information in feedback ratchets

Physical Review E, 2023
Feedback control uses the state information of the system to actuate on it. The information used implies an effective entropy reduction of the controlled system, potentially increasing its performance. How to compute this entropy reduction has been formally shown for a general system, and has been explicitly computed for spatially discrete systems ...
Natalia Ruiz-Pino, Daniel Villarrubia-Moreno, Antonio Prados, Francisco J. Cao-García   +3 more
openaire   +6 more sources

Evolution of Physical Intelligence Across Scales

Advanced Intelligent Discovery, EarlyView.
By following the evolution of physical intelligence across scales, this article shows how intelligence arises from materials, structures, physical interactions, and collectives. It establishes physical intelligence as the evolutionary foundation upon which embodied intelligence is built.
Ke Liu, Tianyun Huang, Aming Li, Pengyu Lv, Tingting Qin, Wenhui Chen, Hui Wei, Huiling Duan   +7 more
wiley   +1 more source

Propulsion on a superhydrophobic ratchet [PDF]

Scientific Reports, 2014
Liquids in the Leidenfrost state were shown by Linke to self-propel if placed on ratchets. The vapour flow below the liquid rectified by the asymmetric teeth entrains levitating drops by viscosity. This effect is observed above the Leidenfrost temperature of the substrate, typically 200°C for water.
Dupeux, Guillaume, Bourrianne, Philippe, Magdelaine, Quentin, Clanet, Christophe, Quéré, David   +4 more
openaire   +4 more sources

An ontological morphological phylogenetic framework for living and extinct ray‐finned fishes (Actinopterygii)

The Anatomical Record, EarlyView.
Abstract The ray‐finned fishes include one out of every two species of living vertebrates on Earth and have an abundant fossil record stretching 380 million years into the past. The division of systematic knowledge of ray‐finned fishes between paleontologists working on extinct animals and neontologists studying extant species has obscured the ...
Jack Stack
wiley   +1 more source

Bacterial ratchet motors [PDF]

Proceedings of the National Academy of Sciences, 2010
Self-propelling bacteria are a nanotechnology dream. These unicellular organisms are not just capable of living and reproducing, but they can swim very efficiently, sense the environment, and look for food, all packaged in a body measuring a few microns.
DI LEONARDO, ROBERTO, ANGELANI, Luca, D. Dell'Arciprete, RUOCCO, Giancarlo, IEBBA, VALERIO, SCHIPPA, Serena, CONTE, Maria Pia, F. Mecarini, F. De Angelis, E. Di Fabrizio   +9 more
openaire   +5 more sources

Reporting What Matters, or Reporting What Looks Good? Materiality and Balance in Post–Rana Plaza Apparel Sustainability Disclosure

Business Strategy and the Environment, EarlyView.
ABSTRACT Sustainability reports (SRs) are widely criticized for vague disclosures and selective emphasis on positive outcomes, yet systematic research on two core SR challenges remains limited: materiality (whether disclosed content is relevant) and balance (whether both achievements and challenges are reported).
Mahsa Mohammadrezaei, José Carlos Marques   +1 more
wiley   +1 more source

Patents as Green Signals: Capital Market Responses to Corporate Green Innovation in Carbon‐ and Energy‐Intensive Firms

Business Strategy and the Environment, EarlyView.
ABSTRACT Adopting a signaling perspective, this study examines whether corporate green patenting reduces the cost of equity by mitigating information asymmetry in capital markets. Using longitudinal panel data from South Korea, we find that green patenting—encapsulating technological innovation related to energy, environmental protection, and climate ...
Jeongdae Yim, Su‐Yol Lee
wiley   +1 more source