Results 171 to 180 of about 23,252 (283)

Fast and Simple Methods For Computing Control Points

open access: yes, 2006
The purpose of this paper is to present simple and fast methods for computing control points for polynomial curves and polynomial surfaces given explicitly in terms of polynomials (written as sums of monomials).
Gallier, Jean, Gu, Weqing
core   +1 more source

The scale matters: A review on stimuli‐responsive microrobots categorized by scale for biomedical applications

open access: yesResponsive Materials, EarlyView.
We systematically summarize how each scale dictates fundamental choices in design feature, manufacturing technology, driving mechanism, and control strategy, which are inherently governed by scale‐dominated physical principles. Furthermore, the application of scale‐determined operation modes of microrobots across different stages of medical ...
Hang Yin   +3 more
wiley   +1 more source

Second International Colloquium on Mars: Abstracts for a colloquium [PDF]

open access: yes
s of 110 papers relating to investigations of the planet Mars and intended for consideration at the colloquium are presented.

core   +1 more source

Observations of Polar Cap Patch Substructures by EISCAT Svalbard Radar

open access: yes, 2009
This thesis discusses substructures within convecting large-scale plasma density enhancements, known as “patches”, in the polar F-region ionosphere. Two days of high resolution EISCAT Svalbard Radar (ESR) data from both antennas have been analyzed; the 42m fixed antenna measures along the magnetic field, providing well defined altitude profiles, and ...
openaire   +1 more source

Geomorphic Responses to Post‐Grazing Recovery and Stream Restoration in Semiarid Grassland Streams

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Semiarid grassland streams are sensitive to land use, climate, extreme discharges, and internal geomorphic thresholds that drive episodic erosion. Rooted in a process‐based philosophy and commonly applied to historically wood‐rich, beaver‐modified systems, low‐tech process‐based restoration using structures is increasingly being extended to ...
Owen Richardson, Ellen Wohl
wiley   +1 more source

Do We Really Know Why Carbon Nanotubes Grow?

open access: yesSmall, EarlyView.
The CNT growth mechanism is still debated. We propose a heterogeneous (2D) classical nucleation framework comparing pathways for graphenic patches, caps, and full CNTs. Despite its simplicity, it rationalizes key trends, including the correlation between catalyst particle size and CNT diameter.
Nicola Verziaggi   +6 more
wiley   +1 more source

Septin organization is regulated by the Gpa1 ubiquitination domain and endocytic machinery during the yeast pheromone response. [PDF]

open access: yesMol Biol Cell
Johnson CP   +11 more
europepmc   +1 more source

Shape‐Memory Collagen/Silk‐Fibroin Scaffold for Dura Sealing and Skull Base Regeneration

open access: yesSmall, EarlyView.
ABSTRACT When a skull base defect occurs, reconstruction is typically performed using a variety of autologous grafts, flaps, or synthetic materials. Failure to achieve appropriate management and closure can lead to serious consequences, such as cerebrospinal fluid (CSF) leakage and subsequent meningitis.
SooJung Chae   +5 more
wiley   +1 more source

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