Results 51 to 60 of about 27,418 (200)

Mars base buildup scenarios [PDF]

open access: yes, 1985
Two Mars surface based build-up scenarios are presented in order to help visualize the mission and to serve as a basis for trade studies. In the first scenario, direct manned landings on the Martian surface occur early in the missions and scientific ...
Blacic, J. D.
core   +1 more source

Risk Assessment for an Unmanned Merchant Ship

open access: yesTransNav, the International Journal on Marine Navigation and Safety of Sea Transportation, 2015
The MUNIN project is doing a feasibility study on an unmanned bulk carrier on an intercontinental voyage. To develop the technical and operational concepts, MUNIN has used a risk-based design method, based on the Formal Safety Analysis method which is also recommended by the International Mari-time Organization.
Rødseth, Ørnulf Jan   +1 more
openaire   +2 more sources

Feasibility of Warehouse Drone Adoption and Implementation [PDF]

open access: yes, 2018
While aerial delivery drones capture headlines, the pace of adoption of drones in warehouses has shown the greatest acceleration. Warehousing constitutes 30% of the cost of logistics in the US.
Companik, Edward   +2 more
core   +2 more sources

Analysis of the motion characteristics of Marine Mecanum transport platform

open access: yesMATEC Web of Conferences, 2018
This paper analyzes the shortage of unmanned systems in the traditional operation mode from the operational requirement of future war to unmanned systems, and puts forward the ship Mecanum transport platform.
Zhang Ying, Ge Shengli
doaj   +1 more source

Experimental implementation controlled SPWM inverter based harmony search algorithm [PDF]

open access: yes, 2017
An optimum PI controller using harmony search optimization algorithm (HS) is utilized in this research for the single-phase bipolar SPWM inverter. The aim of this algorithm is to avoid the conventional trial and error procedure which is usually applied ...
A. F. Yahaya, Jabbar   +4 more
core  

Photo Essay: HMCS \u3cem\u3eHaida\u3c/em\u3e [PDF]

open access: yes, 2012
In Canada, historic naval ships are not as plentiful as in the United States but their history is just as rich. Although Canada’s naval tradition is a young one, officially starting with the Naval Act in 1910, the legacy is a lasting one that continues ...
Morse, Carla
core   +1 more source

UAV/UGV Autonomous Cooperation: UAV Assists UGV to Climb a Cliff by Attaching a Tether

open access: yes, 2019
This paper proposes a novel cooperative system for an Unmanned Aerial Vehicle (UAV) and an Unmanned Ground Vehicle (UGV) which utilizes the UAV not only as a flying sensor but also as a tether attachment device.
Hori, Koichi   +2 more
core   +1 more source

Convex Optimization-Based Adaptive Neural Network Control for Unmanned Surface Vehicles Considering Moving Obstacles

open access: yesJournal of Marine Science and Engineering
This article addresses the challenge of designing obstacle avoidance control strategies for unmanned ship systems operating in environments with moving obstacles and unmodeled dynamics.
Dongxiao Liu   +3 more
doaj   +1 more source

Perception is Everything: Repairing the Image of American Drone Warfare [PDF]

open access: yes, 2018
This thesis will trace the United States’ development of unmanned warfare from its initial use in the World Wars through the Cold War to its final maturation in the War on Terror.
Tubbs, Luke
core   +1 more source

Safely Navigating the Oceans with Unmanned Ships

open access: yesMarine Navigation, 2017
Unmanned ships represent the biggest advancement in shipping in decades, but they pose some of the biggest regulatory challenges. This paper focuses on the legal requirements which have to be fulfilled as part of safe navigation. In relation to safe navigation the biggest legal challenges are posed by the International Regulations for Preventing ...
openaire   +1 more source

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