Results 31 to 40 of about 6,265,653 (300)

A Multi-Fidelity Successive Response Surface Method for Crashworthiness Optimization Problems

open access: yesApplied Sciences, 2023
Due to the high computational burden and the high non-linearity of the responses, crashworthiness optimizations are notoriously hard-to-solve challenges.
Pietro Lualdi, Ralf Sturm, Tjark Siefkes
doaj   +1 more source

Autonomous Aerial Refueling Ground Test Demonstration—A Sensor-in-the-Loop, Non-Tracking Method

open access: yesSensors, 2015
An essential capability for an unmanned aerial vehicle (UAV) to extend its airborne duration without increasing the size of the aircraft is called the autonomous aerial refueling (AAR).
Chao-I Chen   +5 more
doaj   +1 more source

The impact of Covid-19 on malaria services in three high endemic districts in Rwanda: a mixed-method study

open access: yesMalaria Journal, 2022
Background Rwanda has achieved impressive reductions in malaria morbidity and mortality over the past two decades. However, the disruption of essential services due to the current Covid-19 pandemic can lead to a reversal of these gains in malaria control
Dieudonne Hakizimana   +7 more
doaj   +1 more source

Energy Assessment of Different Powertrain Options for Heavy-Duty Vehicles and Energy Implications of Autonomous Driving

open access: yesEnergies, 2023
Heavy-duty vehicles (HDVs) are responsible for a significant amount of CO2 emissions in the transport sector. The share of these vehicles is still increasing in the European Union (EU); nevertheless, rigorous CO2 emission reduction schemes will apply in ...
Sebastian Sigle, Robert Hahn
doaj   +1 more source

Transition between flow-drill screwing systems considering joining process and joint characteristics

open access: yesAdvances in Industrial and Manufacturing Engineering, 2022
Flow-drill screwing is one of the key joining technologies for car body structures in multi-material lightweight design. In the course of technological developments and subsequent volume production of a product, different assets are used to obtain the ...
Stephan Altvater   +2 more
doaj   +1 more source

Decoherence: Concepts and Examples [PDF]

open access: yes, 1998
We give a pedagogical introduction to the process of decoherence - the irreversible emergence of classical properties through interaction with the environment.
A.O. Caldeira   +21 more
core   +2 more sources

Discrepancies in University of California Fig Breeding Records

open access: yesHortScience, 2023
A 1975 fig crop reference chapter written by W.B. Storey contains pedigree information involving 30 cultivars from the University of California breeding program and early California.
Richard B. Frost
doaj   +1 more source

Concepts, Belief, and Perception [PDF]

open access: yes, 2021
At least in one well-motivated sense of ‘concept’, all perception involves concepts, even perception as practiced by lizards and bees.
Byrne, Alex
core  

The potential of high-speed rail freight in Europe: how is a modal shift from road to rail possible for low-density high value cargo?

open access: yesEuropean Transport Research Review, 2021
Purpose A fully electrified transport chain offers considerable potential for CO2 savings. In this paper, we examine the conditions necessary to introduce a fully electrified, large-scale, high-speed rail freight transport system in Europe in addition to
Mathias Boehm   +2 more
doaj   +1 more source

Thick Concepts [PDF]

open access: yes, 2016
A term expresses a thick concept if it expresses a specific evaluative concept that is also substantially descriptive. It is a matter of debate how this rough account should be unpacked, but examples can help to convey the basic idea.
Kyle, Brent G.
core  

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