Results 101 to 110 of about 1,306,417 (313)

Three‐Dimensional Highly Thermally Conductive Graphene Blocks by Multiscale Blending and Multistage Pressure Induction

Carbon Energy, EarlyView.
An expandable‐thickness graphene block (GPB) with high thermal conductivity synthesized through multiscale blending and multistage pressure induction (MBP) achieves a record thickness of 12.1 mm, which is more than 10 times that of existing graphene materials. The maximum thermal diffusion ability of GPB‐MBP reaches 6.3 W/K, which offers a new approach
Liyu Zhang, Haitao Hu, Xuan Li, Haihan Xu, Xiaoying Gao, Ruishi Lin, Yingze Meng, Jiaxin He, Shoujin Chang, Guoliang Ding   +9 more
wiley   +1 more source

Velocity vector control system augmented with direct lift control [PDF]

, 1981
A pilot-controlled stability control system that employs direct lift control (spoiler control) with elevator control to control the flight path angle of an aircraft is described.
Kelly, W. W., Tisdale, H. F., Sr.
core   +1 more source

Optimization of 3D‐Printed Structured Packings—Current State and Future Developments

Chemie Ingenieur Technik, EarlyView.
This paper gives an overview about structured packing development for distillation, surveying heuristic development cycles, computational fluid dynamics simulations, and additive manufacturing techniques. The emerging application of shape optimization to improve packings is emphasized, and its benefits, impact, and limitations are discussed.
Dennis Stucke, Sebastian Blauth, Christian Leithäuser, Thomas Grützner   +3 more
wiley   +1 more source

Aircraft engine nozzle guide vane surface temperature optimization. [PDF]

Heliyon, 2023
Decang L, Mengjun W, Jinhua L, Jun Z, Xiaoyang H, Along C.   +5 more
europepmc   +1 more source

The 300 H.P. Benz Aircraft Engine [PDF]

A description is given of the Benz 12-cylinder aircraft engine. The 300 H.P. engine, with the cylinders placed at an angle of 60 degrees not only realizes a long-cherished conception, but has received refinement in detail.
Heller, A
core   +1 more source

Sudan at War With Itself: Civilian Devastation in the Civil War

Conflict Resolution Quarterly, EarlyView.
ABSTRACT A civil war is raging in Sudan between the Sudan Armed Forces (SAF) and the Rapid Support Forces (RSF) along with militia groups. Beginning on April 15, 2023, and continuing at least to this writing (October 15, 2025), civilian noncombatants have been subjected to bombings, beatings, torture, shootings, rape, and murder on a large scale. Since
Daniel Rothbart, Bayan Abubakr, Beltina Gjeloshi, Dieter Pfoser   +3 more
wiley   +1 more source

Dynamic Models of Mechanical Seals for Turbomachinery Application

Lubricants
One of the primary causes of mechanical face seal failure is rotor vibration. Traditional dynamic seal models often cannot fully explain failure mechanisms. The dynamic models of seals proposed in this paper, including those developed by the authors, are
Renat Badykov, Sergei Falaleev, Maxim Benedyuk, Dmitriy Diligenskiy   +3 more
doaj   +1 more source

Visual Analysis and Detection of Contrails in Aircraft Engine Simulations. [PDF]

IEEE Trans Vis Comput Graph, 2023
Nipu N, Floricel C, Naghashzadeh N, Paoli R, Marai GE.   +4 more
europepmc   +1 more source

Study of an advanced General Aviation Turbine Engine (GATE) [PDF]

The best technology program for a small, economically viable gas turbine engine applicable to the general aviation helicopter and aircraft market for 1985-1990 was studied.
Curry, C. E., Gill, J. C., Humphrey, J. M., Orelup, M. J., Short, F. R., Staton, D. V., Vaught, J. M., Zolezzi, B. A.   +7 more
core   +1 more source

Hydrocarbon emissions from a modern commercial airliner [PDF]

, 2006
We report selected carbon species emission indices (EIs) for a Rolls Royce RB211-535-E4 turbofan engine that were acquired during the NASA EXperiment to Characterize Aircraft Volatile Aerosol and Trace-species Emissions (EXCAVATE).
Anderson, BE, Blake, DR, Chen, G
core