Results 261 to 270 of about 2,508,409 (309)

Path planning of mobile robot with PSO-based APF and fuzzy-based DWA subject to moving obstacles

Transactions of the Institute of Measurement and Control, 2021
This paper proposes a two-layer path-planning method, where an optimized artificial potential field (APF) method and an improved dynamic window approach (DWA) are used at the global and local layer, respectively.
Zenan Lin, M. Yue, Guangyi Chen, Jianzhong Sun   +3 more
semanticscholar   +1 more source

Computational social science: Obstacles and opportunities

Science, 2020
Data sharing, research ethics, and incentives must improve The field of computational social science (CSS) has exploded in prominence over the past decade, with thousands of papers published using observational data, experimental designs, and large-scale
D. Lazer, A. Pentland, D. Watts, Sinan Aral, S. Athey, N. Contractor, Deen Freelon, Sandra González-Bailón, Gary King, H. Margetts, Alondra Nelson, Matthew J. Salganik, M. Strohmaier, A. Vespignani, Claudia Wagner   +14 more
semanticscholar   +1 more source

Major obstacles to doxorubicin therapy: Cardiotoxicity and drug resistance

Journal of Oncology Pharmacy Practice, 2020
Background Doxorubicin is one of the most commonly prescribed and time-tested anticancer drugs. Although being considered as a first line drug in different types of cancers, the two main obstacles to doxorubicin therapy are drug-induced cardiotoxicity ...
Hamdan S Al-malky, Sameer E Al Harthi, A. Osman   +2 more
semanticscholar   +1 more source

When is an obstacle a perfect obstacle?

Proceedings of 1995 IEEE International Conference on Robotics and Automation, 1998
Owing to the exponential costs of path planning in a continuous or graded cost environment, robot motion planning traditionally makes the "perfect obstacle assumption" and divides workspace into perfect obstacles and perfect freespace, although in practice such a black-and-white distinction is rare. Under the above definition, however, many finite cost
A. Mukerjee, S. Sharma, R.B. Agrawal
openaire   +1 more source

Flame acceleration and deflagration-to-detonation transition in hydrogen-air mixture in a channel with an array of obstacles of different shapes

Combustion and Flame, 2020
Numerical simulations were conducted to study the flame acceleration and deflagration-to-detonation transition (DDT) in a channel with a bank of aligned obstacles.
Huahua Xiao, E. Oran
semanticscholar   +1 more source

Avoidance of Convex and Concave Obstacles With Convergence Ensured Through Contraction

IEEE Robotics and Automation Letters, 2019
This letter presents a closed-form approach to obstacle avoidance for multiple moving convex and star-shaped concave obstacles. The method takes inspiration in harmonic-potential fields. It inherits the convergence properties of harmonic potentials.
L. Huber, A. Billard, J. Slotine
semanticscholar   +1 more source

Implementation of safety management system in managing construction projects: Benefits and obstacles

Safety Science, 2019
The safety management system (SMS) was introduced in the 1980s to reduce the risk of injuries and fatalities and minimise material waste in the construction industry.
N. Yiu, Daniel W. M. Chan, M. Shan, N. Sze   +3 more
semanticscholar   +1 more source

OBSTACLES

Religion and the Meaning of Life, 2008
J. Junttila
openaire   +2 more sources

Obstacles and opportunities in a forward vision for cancer nanomedicine

Nature Materials, 2021
Irene de Lázaro, D. Mooney
semanticscholar   +1 more source

Dynamic window based approaches for avoiding obstacles in moving

Robotics Auton. Syst., 2019
In recent years, Unmanned Ground Vehicles (UGVs) have been widely used as service robots. Unlike industrial robots, which are situated in fixed and controlled positions, UGVs work in dynamic environments, sharing the environment with other vehicles and ...
Eduardo J. Molinos, Á. Llamazares, M. Ocaña   +2 more
semanticscholar   +1 more source