Results 61 to 70 of about 73,525 (314)

Gait Analysis of Pak Biawak: A Necrobot Lizard Built using the Skeleton of an Asian Water Monitor (Varanus Salvator)

Advanced Robotics Research, EarlyView.
Pak Biawak, a necrobot, embodies an unusual fusion of biology and robotics. Designed to repurpose natural structures after death, it challenges conventional boundaries between nature and engineering. Its movements are precise yet unsettling, raising questions about sustainability, ethics, and the untapped potential of biointegrated machines.
Leo Foulds, Donan Satria Yudha, Parvez Alam   +2 more
wiley   +1 more source

Classification of Converter-Driven Stability and Suitable Modeling and Analysis Methods

IEEE Access
The significant increase of converter interfaced generation, consumption, storage, and transmission in power systems, results in the need to consider converter-driven stability in detail, as well as to study modelling and analysis methods with which such
Christina Eckel, Davood Babazadeh, Christian Becker   +2 more
doaj   +1 more source

Modeling and Stability Analysis of Weak-Grid Tied Multi-DFIGs in DC-Link Voltage Control Timescale

Energies, 2020
The DC-link voltage control (DVC) timescale (i.e., the frequency dynamics covering converter outer controls) instabilities in wind generation have gained increased attention recently.
Dong Wang, Houquan Chen, Yunhui Huang, Xiangtian Deng, Guorong Zhu   +4 more
doaj   +1 more source

Calculation method for natural frequency of rotors considering load distribution in stepped parts

Nihon Kikai Gakkai ronbunshu, 2022
To improve the product performance of turbomachinery and ensure vibration reliability, we propose a method for predicting natural frequencies that considers the decrease in the stiffness of the rotor stepped part.
Kazuyuki YAMAGUCHI, Toyomi YOSHIDA, Yohei MAGARA   +2 more
doaj   +1 more source

Root‐Stimulated Movements in Mimosa Pudica for Biohybrid Robotic Systems

Advanced Robotics Research, EarlyView.
This study demonstrates that thermal and electrical stimulation of Mimosa pudica root induces movement of the petiole and pinnules without direct stimulation of the aerial organs, thereby enabling a plant‐based robotic gripper and providing a foundation for the development of intelligent and sustainable systems.
Misao Sato, Kazuya Murakami, Yu Ikeda, Yuki Sakashita, Hayato Kurusu, Ken Yokawa, Jun Shintake   +6 more
wiley   +1 more source

Eigenvalue Problem for the Second Order Differential Equation with Nonlocal

, 2006
The paper deals with numerical methods for eigenvalue problem for the second order ordinary differential operator with variable coefficient subject to nonlocal integral condition.
Sapagovas, M., Makarov, V., Lazurchak, I., Bandyrskii, B.   +3 more
core   +1 more source

Ray Trace Tomographic Velocity Analysis of Surface Seismic Reflection Data [PDF]

, 1988
Recent development of two technologies allows application of a generalized formulation of travel time inversion to very large data sets, such as the surface reflection surveys collected for oil exploration.
Stork, Christof
core   +1 more source

Unraveling the Molecular Mechanisms Underlying Spontaneous Multipolar Mitosis Through CIN‐seq

Advanced Science, EarlyView.
Multipolar mitosis, a hallmark of chromosomal instability (CIN), drives tumor heterogeneity but is challenging to study in live cells. Using CIN‐seq, a single‐cell multiomics method, we profiled rare CIN events and identified mechanisms associated with viable multipolar mitosis, including PTEN attenuation, Rho GTPase‐driven cytokinesis failure, and ...
Pin‐Rui Su, Ting‐Chun Chou, Maria Teresa López‐Cascales, Junfeng Huang, Tsai‐Ying Chen, Sjoukje van Wieren, Chan Li, Cecile Beerens, Li You, Jelle Storteboom, Miao‐Ping Chien   +10 more
wiley   +1 more source

Stability Analysis and Oscillation Mitigation of Grid-Forming Doubly Fed Induction Systems Based on Reduced-Order Modeling Generator

Energies
The increasing penetration of renewable energy exposes doubly fed induction generator (DFIG)-based wind power systems to weak-grid conditions, making them susceptible to low-frequency and subsynchronous oscillations.
Jingjia Liu, Lulu Zhao, Jingchun Chu, Haitao Zhu, Zhenxin Sun, Yiping Yu   +5 more
doaj   +1 more source

Monte Carlo Based Isogeometric Stochastic Finite Element Method for Uncertainty Quantization in Vibration Analysis of Piezoelectric Materials

Mathematics, 2022
In this study, a Monte Carlo simulation (MCs)-based isogeometric stochastic Finite Element Method (FEM) is proposed for uncertainty quantification in the vibration analysis of piezoelectric materials.
Yanming Xu, Haozhi Li, Leilei Chen, Juan Zhao, Xin Zhang   +4 more
doaj   +1 more source