Results 81 to 90 of about 48,344 (297)
Critique of the vertical gradient of gravity
, 1989 Growing interest in high precision studies of the Earth's gravitational field warrant a critical review of precision requirements to yield useful results. Several problems are now under consideration.
Hammer, Sigmund
core
Payload Positioning System for Gravity Gradient Satellite
, 1988 Many current satellites rely on active control systems to maintain attitude. Passively controlled gravity gradient satellites cost less and are more reliable, but have difficulty accommodating independently moving payloads such as pointable telescopes ...
Holliday, M. +3 more
core +1 more source
Advanced Materials, EarlyView.An Aloe‐pinspired droplet electricity generator (A‐DEG) overcomes the limited energy collection zone of conventional DEGs by guiding impact droplets through a channeling midrib and artificial cuticle. The channeling midrib induces uni‐directional droplet spreading, while the artificial cuticle on the midrib further reinforces this behavior through its ...
Gibeom Lee +8 more
wiley +1 more source
AI–Guided 4D Printing of Carnivorous Plants–Inspired Microneedles for Accelerated Wound Healing
Advanced Materials, EarlyView.This work presents an artificial intelligence (AI)‐guided 4D‐printed microneedle platform inspired by carnivorous plants for wound healing. A thermo‐responsive shape memory polymer enables body temperature–triggered self‐coiling for autonomous wound closure.
Hyun Lee +21 more
wiley +1 more source
Omission Error Analysis in Gravity Gradient Measurement
IEEE Access, 2018 Gravity gradient plays an important role in many fields of science, and many methods are used to achieve the measurement of it. To improve measurement accuracy, various error analyses have been conducted in previous studies about positioning and ...
Hongwei Wei +4 more
doaj +1 more source
Advanced Materials, EarlyView.We address the inherently weak particle adhesion of conventional air filters by coating a dynamically crosslinked adhesive layer that delivers capillarity‐driven strong adhesion and particle absorption mediated by dynamic bond exchange. The resulting enhancement in particle adhesion enables efficient ultrafast (up to 20 m s−1) and omnidirectional ...
Junyong Park +11 more
wiley +1 more source
Interpretation and data processing of gravity gradient observation
, 2011 Fen Bilimleri Enstitüsü, Jeofizik Mühendisliği Ana Bilim DalıSunulan bu çalışmada gravite ile gravite düşey gradient çalışmaları veri işlem ve yorum açısından karşılaştırılmıştır.Gravite ve gravite düşey gradient çalışmaları sığ yer altı boşluk ...
Yıldırım, Gökhan
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Advanced Materials, EarlyView.Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang +5 more
wiley +1 more source
The earth's gravity field recovery using the third invariant of the gravity gradient tensor from GOCE. [PDF]
Sci Rep, 2021 Cai L +6 more
europepmc +1 more source
Generalized sampling interpolation of noisy gravity/gravity gradient data
, 2017 The generalized sampling expansion (GSE) has been shown as a method for successfully interpolating combined gravity and gravity gradient data sets when the data are undersampled.
Biegert, Ed +2 more
core