Results 121 to 130 of about 10,532,032 (323)

Detonation performance of high-dense BTF charges

Journal of Physics: Conference Series, 2014
New experimental data on detonation wave parameters and explosive performance for benzotrifuroxan are presented. Optical pyrometry was applied in order to measure the temperature and pressure of BTF detonation products. Chapman-Jouguet temperature was obtained as 3990 – 4170 K (charge densities 1.82 – 1.84 g/cc).
A Dolgoborodov, M Brazhnikov, M Makhov, S Gubin, I Maklashova   +4 more
openaire   +1 more source

White Dwarf Mergers on Adaptive Meshes I. Methodology and Code Verification

, 2016
The Type Ia supernova progenitor problem is one of the most perplexing and exciting problems in astrophysics, requiring detailed numerical modeling to complement observations of these explosions.
Almgren, Ann S., Calder, Alan C., Katz, Max P., Swesty, F. Douglas, Zhang, Weiqun, Zingale, Michael   +5 more
core   +1 more source

Tunable Plasmonic Response of Silver Nanoparticles Entangled in Detonation Nanodiamond Network via Colloidal Self‐Assembly

Advanced Materials Interfaces, EarlyView.
Detonation nanodiamonds form a network that entangles silver nanoparticles into stable nanocomplexes. The structure can fine‐tune and enhance plasmonic absorption through nearfield electromagnetic interactions but prevents silver particle aggregation. The study shows how the arrangement and concentration of particles affect light absorption, offering a
Vendula Hrnčířová, Markéta Šlapal Bařinková, Muhammad Qamar, Kateřina Kolářová, Bohuslav Rezek   +4 more
wiley   +1 more source

Self‐Assembled Fluorescent Nanodiamond Layers for Quantum Imaging

Advanced Materials Interfaces, EarlyView.
We developed a simple, scalable method for coating surfaces with fluorescent nanodiamonds. By optimizing the coating process, we created uniform, dense layers that enable high‐resolution magnetic imaging using the nitrogen‐vacancy (NV) center in nanodiamonds. This approach enables the development of cost‐effective quantum‐sensing and imaging substrates
Katherine Chea, Erin S. Grant, Kevin J. Rietwyk, Hiroshi Abe, Takeshi Ohshima, David A. Broadway, Jean‐Philippe Tetienne, Gary Bryant, Philipp Reineck   +8 more
wiley   +1 more source

Advancements in energetic metal-organic frameworks, alkali and alkaline earth metal salts, and transition metal complexes: Predictive models for detonation velocity, heat, and pressure

Defence Technology
Recent advancements have led to the synthesis of various new metal-containing explosives, particularly energetic metal-organic frameworks (EMOFs), which feature high-energy ligands within well-ordered crystalline structures.
Mohammad Hossein Keshavarz, Nasser Hassanzadeh, Mohammad Jafari   +2 more
doaj   +1 more source

Preliminary engineering report for design of a subscale ejector/diffuser system for high expansion ratio space engine testing [PDF]

The design of a subscale jet engine driven ejector/diffuser system is examined. Analytical results and preliminary design drawings and plans are included. Previously developed performance prediction techniques are verified. A safety analysis is performed
Doktor, M. F., Kurzius, S. C., Wojciechowski, C. J.   +2 more
core   +1 more source

From the Discovery of the Giant Magnetocaloric Effect to the Development of High‐Power‐Density Systems

Advanced Materials Technologies, EarlyView.
The article overviews past and current efforts on caloric materials and systems, highlighting the contributions of Ames National Laboratory to the field. Solid‐state caloric heat pumping is an innovative method that can be implemented in a wide range of cooling and heating applications.
Agata Czernuszewicz, Yaroslav Mudryk, Jun Cui, Lucas Griffith, Duane D. Johnson, Julie Slaughter   +5 more
wiley   +1 more source

Diazoamination: A simple way to enhance detonation performance of aminoaromatic and aminoheterocyclic energetic materials

, 2021
S. Bondarchuk
semanticscholar   +1 more source

Flexible, Integrated‐Porous Microneedle Sensor for Biofluid Sampling and On‐Site Biomarker Detection

Advanced Materials Technologies, EarlyView.
A paper‐integrated porous PGA microneedle array patch capable of both high strength and absorption capacity is proposed. With an image‐processing system, an optimized colorimetric sensor achieves a low limit of detection of 0.09 mm in cholesterol.
Haitao Deng, Heyi Jing, Jongho Park, Beomjoon Kim   +3 more
wiley   +1 more source

Wireless Power Transfer Modalities for Implantable Bioelectronics: Electromagnetic, Acoustic, and Magneto‐Dynamic Perspectives

Advanced Materials Technologies, EarlyView.
This review traces the evolution of wireless power transfer (WPT) for implantable medical devices, spanning electromagnetic, magnetoelectric, acoustic, and magneto‐dynamic systems. Quantitative comparisons of power, distance, and device scale highlight trade‐offs across modalities, while emerging hybrid mechanisms reveal strategies to overcome ...
Junyeop Kim, Yoonseok Park
wiley   +1 more source