Results 51 to 60 of about 365,662 (132)

Physicochemical properties of pyrolyzed shea kernel and groundnut shells for alternative energy applications

Cogent Engineering
This paper presents the results of an experimental and analytical study of the physicochemical properties of pyrolyzed biomass for use as alternative energy sources.
Abdalla Suhuyini Salifu, Michael Commeh, Freda Ampiaw, Michael Oteng-Peprah, Benjamin Agyei-Tuffour, David Dodoo-Arhin   +5 more
doaj   +1 more source

U.S. Army in Asia, 2030–2040

, 2014
Looking to the 2030-2040 time frame, U.S. policy and military strategy will need to strike a balance among maintaining a cooperative relationship with China, deterring Chinese aggression in regional disputes, and preparing for the possibility that China ...
Heginbotham, Dr Eric, Kelly, Terrence K., Dobbins, James, Shlapak, David A., Gompert, David C.   +4 more
core  

Research on the Mechanism of Fault Activation and Water Inrush Across Variable Coal Pillar Widths

Advances in Civil Engineering
During coal mining operations, the activation of geological faults induced by mining activities, leading to sudden water inrush, presents a significant technical challenge to safe extraction.
Hongjin Sun, Rui Pan, Junwei Li, Benshui Yang   +3 more
doaj   +1 more source

Utilising waste material in a 3DCP mixture: A review on rheological and compressive strength

Engineering Science and Technology, an International Journal
3D Concrete Printing (3DCP) is an advanced technology in manufacturing and building sector. This technology is now a crucial component for developing cutting-edge machinery that could resolve many challenges faced by conventional building construction ...
Mizan Adillia Ahmad Fuad, Azhar Ghazali, Mohd Hafizal Mohd Isa, Hanizam Awang   +3 more
doaj   +1 more source

COVID-19 vaccination in adults with congenital heart disease: Real-world data from an Italian tertiary centre. [PDF]

Int J Cardiol Congenit Heart Dis, 2021
Fusco F, Scognamiglio G, Merola A, Roma AS, Nicastro C, Spatarella M, D'Abbraccio M, Di Mauro G, Atripaldi U, Atripaldi L, Correra A, Palma M, Barracano R, Borrelli N, Capuano A, Sarubbi B.   +15 more
europepmc   +1 more source

A compact X-ray source via fast microparticle streams

Communications Engineering
The spatiotemporal resolution of diagnostic X-ray images is limited by the erosion and rupture of conventional stationary and rotating anodes of X-ray tubes from extreme density of input power and thermal cycling of the anode material.
Rolf Behling, Christopher Hulme, Gavin Poludniowski, Panagiotis Tolias, Mats Danielsson   +4 more
doaj   +1 more source

Command-filtered robust trajectory tracking control for aggressive maneuvers of quadrotor UAV with multiple unknown disturbances

Engineering Science and Technology, an International Journal
A quadrotor unmanned aerial vehicle should have the ability to achieve the desired flight manuevers regardless of the constraints posed by inevitable disturbances. Therefore, this research presents a robust control method designed for trajectory tracking
Nigar Ahmed, Meng Joo Er
doaj   +1 more source

Thermodynamic evaluation of contrail formation from a conventional jet fuel and an ammonia-based aviation propulsion system

Communications Engineering
Condensation trail (contrail) formation in an airplane’s wake requires thermodynamics supersaturation and ice nucleation to form visible ice crystals. Here, using a thermodynamic analysis, we evaluate the potential for forming contrails in a carbon-free,
Trevor Cannon, Ty Hagan, Trevor Kramer, David Schafer, Spencer Meeks, Ryan Medlin, Devin Roland, Ahmad Vasel-Be-Hagh, Rory Roberts   +8 more
doaj   +1 more source

Experimentally validated numerical investigation on the behavior of composite shear walls subjected to cyclic loading

Engineering Science and Technology, an International Journal
Due to design considerations, reinforced concrete (RC) shear walls, with narrow cross-sections containing excessive steel reinforcing bars, are commonly used in tall buildings for seismic resistance to produce functional floor plans.
M. Hasim Kisa, S. Bahadir Yuksel, Ramazan Özmen   +2 more
doaj   +1 more source

Graphene Materials and its Applications in Drug Delivery Systems [PDF]

MATEC Web of Conferences
Advancements in pharmacy and the increasing demand for precise therapeutic efficacy have driven the advancement of drug delivery. However, controlling the therapeutic efficacy exactly and reducing biotoxicity limit the further development of this area ...
Liang Siyuan
doaj   +1 more source