Results 81 to 90 of about 52,295 (267)

The Aircraft Design Laboratory: bridging Germany’s universities for collaborative aircraft design and education

open access: yesCEAS Aeronautical Journal
Abstract Germany’s major aerospace institutes have joined forces to develop a holistic aircraft design environment called UNICADO (UNIversity Conceptual Aircraft Design and Optimization). This environment was created to provide an independent platform that allows universities in Germany and around the world to combine and apply their ...
Pauls, Gerrit, Gollnick, Volker
openaire   +1 more source

Functional models from limited data: A parametric and multimodal approach to anatomy and 3D kinematics of feeding in basking sharks (Cetorhinus maximus)

open access: yesThe Anatomical Record, EarlyView.
Abstract Basking sharks, Cetorhinus maximus (Gunnerus, Brugden [Squalus maximus], Det Kongelige Norske Videnskabers Selskabs Skrifter, 1765, vol. 3, pp. 33–49), feed by gaping their mouths and gill slits, greatly reorienting their cranial skeletons to filter food from water.
Tairan Li   +12 more
wiley   +1 more source

Optimal design of a composite wing structure for a flying-wing aircraft subject to multi-constraint [PDF]

open access: yes, 2012
This thesis presents a research project and results of design and optimization of a composite wing structure for a large aircraft in flying wing configuration.
Xu, Rongxin.
core  

Modification of a Scaled Flight Demonstrator for the Implementation and Experimental Investigation of an Energy Harvesting Powertrain in Distributed Electric Propulsion Systems

open access: yesAerospace
Distributed electric propulsion (DEP) systems offer a wide range of options for arranging the propulsion units on an aircraft. In most cases, the position of the propulsion systems is optimized for one specific flight phase, e.g., takeoff or cruise ...
Achim Kuhn   +4 more
doaj   +1 more source

A Mission Performance Evaluation Approach for Civil UAS Applications

open access: yesMATEC Web of Conferences, 2018
The Unmanned Aircraft Systems (UAS) mission fulfilment grade is determined by performance capabilities of the system elements, such as UAV flight performance, sensor parameters, energy consumption and communication abilities.
Fokina Ekaterina   +2 more
doaj   +1 more source

A Prospection‐Led Archaeological Investigation of a Picenian and Roman Necropolis in Corinaldo (Marche, Italy)

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT This paper presents the results of an integrated archaeological and geophysical investigation conducted between 2018 and 2024 at the newly discovered Picenian and Roman necropolis of Contrada Nevola (Corinaldo, Marche, Central Italy), identified in the framework of development‐led archaeology. The research strategy combined aerial photography,
Federica Boschi
wiley   +1 more source

Simulating competition in the US bioeconomy to produce hard‐to‐electrify transportation fuels using limited biomass resources

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract This study presents a novel bioeconomy optimization framework, BiOpt, designed to address critical questions regarding the strategic use of limited US biomass resources for biofuel production. By integrating detailed techno‐economic analyses, life cycle assessments, and resource assessment data, BiOpt optimizes resource distributions across ...
Nicholas A. Carlson   +3 more
wiley   +1 more source

Effective multiobjective MDO for conceptual design - An aircraft design perspective [PDF]

open access: yes, 2007
Once the requirements for a new aircraft have been defined, the Conceptual design phase is launched. During this phase one or more designers have the goal of defining and investigating a number of alternative solutions.
Fantini, Paolo
core  

Flight of the dragons: a global review of migration in Odonata

open access: yesBiological Reviews, EarlyView.
ABSTRACT Insects are the most abundant and ecologically important animal migrants. Yet, we know relatively little about the patterns and processes underlying insect migration. Dragonflies (Anisoptera) and damselflies (Zygoptera) comprise the ancient insect order Odonata, whose ancestors were the first organisms to fly on Earth.
Johanna S.U. Hedlund   +3 more
wiley   +1 more source

Propeller Design for a future QESTOL Aircraft in the BNF Project

open access: yes, 2012
Due to increasing airport congestion the German research project 'Bürgernahes Flugzeug' (BNF, citizen friendly airplane) investigates the potential of aircraft for a possible future air transportation system integrating small airports.
Carsten Lenfers, Lenfers, Carsten
core   +1 more source

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