Results 61 to 70 of about 65,616 (327)

Maintaining consistency in distributed systems [PDF]

, 1991
In systems designed as assemblies of independently developed components, concurrent access to data or data structures normally arises within individual programs, and is controlled using mutual exclusion constructs, such as semaphores and monitors.
Birman, Kenneth P.
core   +3 more sources

Virtual inertia based hierarchical control scheme for distributed generations considering communication delay

Frontiers in Energy Research, 2023
The virtual inertia technology of DGs (Distributed Generations) can provide inertia and damping support for the power system by imitating the traditional synchronous machine. However, the inherent delay problems around the communication and process links
Chang Zhou, Chang Zhou, Yingqi Liao, Kaifeng Zhang, Xiaohui Xu, Jiaqi Liao   +5 more
doaj   +1 more source

Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review

Advanced Robotics Research, EarlyView.
This review explores the transformative role of multi‐material additive manufacturing (MMAM) in the development of soft robotic systems. It presents current techniques, materials, and design strategies that enable functionally graded and adaptive structures.
Ritik Raj, Quan‐Chen Song, Jia‐Yang Juang   +2 more
wiley   +1 more source

Local SGD Converges Fast and Communicates Little [PDF]

, 2019
Mini-batch stochastic gradient descent (SGD) is state of the art in large scale distributed training. The scheme can reach a linear speedup with respect to the number of workers, but this is rarely seen in practice as the scheme often suffers from large ...
Stich, Sebastian U.
core   +1 more source

The future of enterprise groupware applications [PDF]

, 1999
This paper provides a review of groupware technology and products. The purpose of this review is to investigate the appropriateness of current groupware technology as the basis for future enterprise systems and evaluate its role in realising, the ...
A Tango, B Hedberg, C Szyperski, CA Ellis, Group Communication, H Abdel-Wahab, H Eriksson, J Conklin, J Dix, J Geiuler, J Gosling, J Grudin, J Konstan, J Lee, L Kum-Yew, M Kyng, M Marazakis, M Marx, M Roseman, M Stefik, M Walther, O Jones, P Parnes, PM Johnson, R Bentley, R Bentley, R Lea, RT Kouzes, S Baker, S Khoshafian, S Terzis, T Kindberg, T Mansfield, TCN Graham, The Infospheres Group, U Gall, W Reinhard   +36 more
core   +2 more sources

Permanent Magnet Temperature Estimation for PMSMs Using Virtual Position-Offset Injection

CES Transactions on Electrical Machines and Systems
This paper proposes a virtual position-offset injection based permanent magnet temperature estimation approach for permanent magnet synchronous machines (PMSMs).
Beichen Ding, Yuting Lu, Kaide Huang, Guodong Feng, Chunyan Lai   +4 more
doaj   +1 more source

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

Advanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis, Luis Carlos Sanjuan Acosta, Shubh P. Mehta, Baiyan Qi, Yang Yang, Luis Solorio, Craig J. Goergen, David J. Cappelleri   +7 more
wiley   +1 more source

Comparison of Induction and PM Synchronous motor drives for EV application including design examples [PDF]

, 2012
Three different motor drives for electric traction are compared, in terms of output power and efficiency at the same stack dimensions and inverter size. Induction motor (IM), surface-mounted permanent-magnet (PM) (SPM), and interior PM (IPM) synchronous ...
Boazzo, Barbara, Guglielmi, Paolo, Pellegrino, Gian-Mario Luigi, Vagati, Alfredo   +3 more
core   +1 more source

Wideband Oscillation Mechanism Analysis in VSC-HVDC Systems With Virtual Synchronous Machine in Master-Slave Mode

IEEE Access
Virtual synchronous machine (VSM) has been applied in voltage source converter high voltage direct current (VSC-HVDC) system. This paper proposes a stability evaluation model for ‘rate of change of frequency-transient frequency excursion’ ...
Chang Li, Bingbing Shao, Xun Mao, Wangchao Dong, Kai Lyu   +4 more
doaj   +1 more source

Model Predictive Virtual Synchronous Control of Permanent Magnet Synchronous Generator-Based Wind Power System

Energies, 2020
As much wind power is integrated into the power grid through power electronic equipment, the use of wind power is increased rapidly. Wind power system makes the power grid lack inertia and damping, thereby reducing power grid stability; in severe cases ...
Yusheng Sun, Yaqian Zhao, Zhifeng Dou, Yanyan Li, Leilei Guo   +4 more
doaj   +1 more source