Results 141 to 150 of about 25,141 (308)

Tuning the Morphology of Self‐Assembled Nanopatterns on MgO(001) Surfaces by Sequential Broad‐Beam Ion Irradiation

open access: yesphysica status solidi (RRL) – Rapid Research Letters, EarlyView.
A two‐step approach based on broad‐beam ion irradiation is demonstrated to produce fine‐tuned self‐assembled surface patterns on MgO(001). It shows an efficient route to modifying the crystalline MgO(001) surface topography in a controlled way, making use of its very specific behavior in terms of both the pattern morphology and patterning dynamics.
Denise J. Erb, Stefan Facsko
wiley   +1 more source

Subterranean Mine Inspection Using the Prometheus Re‐Configurable Drone

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This paper describes the design, development, and real‐world testing of an autonomous drone for subterranean exploration, known as “Prometheus.” Driven by requirements from industry that the drone be able to be deployed through areas of restricted access, Prometheus was designed to be directly deployed through a 150 mm aperture.
Liam Brown   +8 more
wiley   +1 more source

Strategy for One‐Step Optimization of Metal Oxide Passivating Contact Materials for Si Heterojunction Solar Cells through Growth Angle Variation

open access: yesSmall, EarlyView.
A one‐step oblique angle reactive sputtering approach enables simultaneous tuning of bulk and interfacial stoichiometry in a metal oxide/ silicon heterojunction. In case of vanadium oxides, growth angle variation controls the formation of stoichiometric SiO2, ternary SiOx(V) interlayer, and phase purity of vanadium oxide, considerably simplifying the ...
Aparajita Mandal   +3 more
wiley   +1 more source

Theoretical study of the ballistics and heat transfer in spinning solid propellant rocket motors [PDF]

open access: yes
Computerized prediction analyses of radial spin acceleration effects on solid propellant rocket motor ballistics and heat ...
Hodge, B. K., Whitesides, R. H., Jr.
core   +1 more source

Activatable smart contrast agents for photoacoustic imaging

open access: yesSmart Molecules, EarlyView.
This review highlights recent advances in smart activatable photoacoustic imaging (PAI) contrast agents, which dynamically modulate their optical properties in response to external stimuli or microenvironmental cues. It discusses their molecular design, activation mechanisms, biomedical applications, and future prospects for clinically tailored use ...
Donghyeon Oh   +5 more
wiley   +1 more source

Virtual Surgical Planning for Management of Acute Maxillofacial Trauma

open access: yesCraniomaxillofacial Trauma & Reconstruction
Study design: A retrospective case series. Objective: The management of acute complex maxillofacial trauma is challenging. The intricate maxillofacial anatomy coupled with the significant functional and aesthetic repercussions of traumatic facial ...
Kyle W. Singerman   +4 more
doaj   +1 more source

Advancing Single‐Walled Carbon Nanotubes toward Next‐Generation Electronic Materials: The Critical Roles of Purity and Processability

open access: yesSmall Methods, EarlyView.
Single‐walled carbon nanotubes (SWNTs) are promising for a wide range of applications. In particular, their exceptional electrical conductivity positions them as potential alternatives to traditional metal conductors. This review identifies the key mechanisms governing their conductivity within composites and proposes practical pathways for translating
Xiao Yu, Alex Adronov
wiley   +1 more source

Approximate Closed-Form Solution of the Differential Equation Describing Droplet Flight during Sprinkler Irrigation

open access: yesInventions
Sprinkler irrigation is widely used in agriculture because it allows for rational use of water. However, it can induce negative effects of soil erosion and of surface waterproofing.
Dario Friso
doaj   +1 more source

The Collision of Tradition, Technology, and Capitalism in American Hunting Culture 美国狩猎文化中传统、技术与资本的碰撞

open access: yesWildlife Letters, EarlyView.
This essay describes the context of big game hunting in the western United States in the twenty‐first century from a sociological perspective. Using Ogburn's theory of cultural lag as a guide, it explores the relationship of technology and capitalism to hunting.
Stephen L. Eliason
wiley   +1 more source

Home - About - Disclaimer - Privacy