Results 111 to 120 of about 4,647 (247)

Exploding Bridgewire (EBW) Detonators: An Example of Synergistic Multiphysics

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Exploding bridgewire (EBW) detonators are highly temporally reproducible explosive devices that require the rapid discharge of a high‐voltage capacitance to operate and so are immune to most of the accidental hazards associated with traditional electric detonators.
P. J. Rae, T. A. Feagin, E. M. Heatwole, R. C. Rettinger   +3 more
wiley   +1 more source

Evidence of chemical complexity and laser-driven autocatalysis in type IA FBGs [PDF]

, 2016
© OSA 2016. We observe the first chemical complexity for Type IA FBG growth under prolonged UV laser exposure. Out-of-phase oscillatory behaviour in GeOH/SiOH formation provides evidence of laser-driven autocatalysis and chemical origins for grating ...
John Canning, Lacraz, A, George Simpson, Amedee Lacraz, Kalli, K, Kyriacos Kalli, Simpson, G, Canning, J   +7 more
core   +1 more source

Purification and Properties of Polyvinyl Nitrate and Its Compatibility With Solid Oxidizers

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Polyvinyl nitrate (PVN) is a nitrate‐ester energetic binder that can be produced directly from polyvinyl alcohol—a cheap commodity feedstock—thereby offering potential cost and supply‐chain advantages over binders based on nitrocellulose and other specialty polymers.
Stephen Spice, Monica C. Chandwani, Carole A. Morrison, Colin R. Pulham   +3 more
wiley   +1 more source

On a Hypercycle System with Nonlinear Rate [PDF]

, 2001
We study an (N+1)-hypercyclical reaction-diffusion system with nonlinear reaction rate n. It is shown that there exists a critical threshold N_0 such that for N\leq N_0 the system is stable while for N> N_0 it becomes unstable.
Winter, M, Juncheng Wei, Matthias Winter, Wei, J   +3 more
core   +1 more source

Fluorinated copolymer resists for high‐resolution negative‐tone lithography: Preparation and patterning performance

Smart Molecules, EarlyView.
Electron‐beam induced C–F cleavage in –CF3 generates F−, which abstracts a proton to form the acid that catalyzes tBMA deprotection during post‐exposure baking. This self‐sensitization mechanism enables the precise formation of high‐resolution negative‐tone patterns with enhanced sensitivity and resolution.
Yuting Tang, Wenzheng Li, Xinyan Huang, Min Zhang, Han Han, Jialong Zhang, Qinyu Luo, Jiangli Fan, Pengzhong Chen, Xiaojun Peng   +9 more
wiley   +1 more source

Autocatalysis, Autopoiesis, and the Opportunity Cost of Individuality

Biomimetics
Ever since Varela and Maturana proposed the concept of autopoiesis as the minimal requirement for life, there has been a focus on cellular systems that erect topological boundaries to separate themselves from their surrounding environment.
Nemanja Kliska, Chrystopher L. Nehaniv
doaj   +1 more source

Recent advances in polymeric chemically amplified positive resists: Materials and design strategies

Smart Molecules, EarlyView.
This review summarizes recent advances in the molecular design of positive chemically amplified resists, focusing on photoacid generators and polymer architectures. Key strategies for enhancing sensitivity—including self‐amplification effects, copolymerization of sensitive monomers, controlled polymerization, and photosensitized chemically amplified ...
Litao Zhou, Haoyuan Li, Jianhua Zhang, Hanshen Xin   +3 more
wiley   +1 more source

Monoalcohol‐Directed Shape Control in a Surfactant‐Free Gold Nanoplate Synthesis

Small Methods, EarlyView.
Surfactant‐free monoalcohol syntheses are advantageous in that they yield colloidal nanostructures that are free of persistent shape‐directing agents but at the expense of realizing only spherically‐shaped nanoparticles. In this work, this limitation is overcome using a low‐complexity light‐driven synthetic protocol yielding periodic arrays of gold ...
Brendan D. Nieukirk, Shuiyi Zhang, Runze Tang, Kaikui Xu, Matthew R. Rosenberger, Robert A. Hughes, Kristen A. Fichthorn, Svetlana Neretina   +7 more
wiley   +1 more source

Pan-Evo: The Evolution of Information and Biology’s Part in This

Biology
Many people wonder whether biology, including humans, will benefit or experience harm from new developments in information such as artificial intelligence (AI).
William B. Sherwin
doaj   +1 more source

Red‐to‐Near‐Infrared Fluorescence Resonance Energy Transfer Reporters for Dual Imaging Applications

Small Methods, EarlyView.
Genetically encoded FRET biosensors reveal dynamic signaling in living cells, but overlapping spectra have limited the simultaneous monitoring of multiple pathways. We introduce a red‐to‐near infrared FRET pair, mRuby2/miRFP670nano3, compatible with existing reporters and enabling dual FLIM‐FRET without bleed‐through.
Van Thi‐Hong Tran, Frans Ek, Hasan Yassine, Rajalaxmi Behera, Vesa P. Hytönen, James R. W. Conway   +5 more
wiley   +1 more source