Results 91 to 100 of about 364,563 (296)

Performance Estimation and Ex Vivo Validation of Untethered Magnetic Robots in Soft Tissue

open access: yesAdvanced Science, EarlyView.
This study presents an empirical model that quantitatively predicts the step‐out frequency of screw‐type untethered magnetic robots (UMRs) in soft viscoelastic environments, including ex vivo brain tissue. By integrating key parameters into a dimensionless framework, the model enables estimation of robot performance across a range of biological ...
Leendert‐Jan W. Ligtenberg   +19 more
wiley   +1 more source

Proceedings of the Integrated Ocean Drilling Program 342: Paleogene Newfoundland Sediment Drifts and MDHDS Test

open access: yes, 2014
<p>Integrated Ocean Drilling Program Expedition 342 was designed to recover Paleogene sedimentary sequences with unusually high deposition rates across a wide range of water depths.
Jo, Kyoungman   +32 more
core   +1 more source

Endothelial miR‐15a/16‐1 Regulation of SYNE1 Mediates Structural and Functional Recovery after Traumatic Brain Injury

open access: yesAdvanced Science, EarlyView.
Endothelial miR‐15a/16‐1 deletion promotes long‐term recovery after traumatic brain injury by restoring SYNE1 expression. Enhanced endothelial SYNE1 preserves vascular integrity, protects white and gray matter, and improves neurological function. The endothelial miR‐15a/16‐1–SYNE1 axis emerges as a key regulator of neurovascular repair and a potential ...
Shun Li   +17 more
wiley   +1 more source

Proceedings of the Integrated Ocean Drilling Program 320/321: Pacific Equatorial Age Transect

open access: yes, 2010
<p>Integrated Ocean Drilling Program Expedition 320/321, "Pacific Equatorial Age Transect" (Sites U1331–U1338), was designed to recover a continuous Cenozoic record of the equatorial Pacific by coring above the paleoposition of the Equator at
Holbourn, Ann E.   +57 more
core   +1 more source

A Multidimensional Engineering Strategy Reprograms Microglia via Targeted and Sustained‐Release Extracellular Vesicles for Spinal Cord Injury Repair

open access: yesAdvanced Science, EarlyView.
A multifunctional EV‐based nanoplatform (Ang‐TEVs@Gel) was engineered via preconditioning, surface targeting, and ROS‐responsive hydrogel encapsulation to reprogram microglia. This system restored autophagy via miR‐664a‐3p/PIK3CA axis, cleared myelin debris, resolved neuroinflammation, and promoted axon remyelination, ultimately achieving robust motor ...
Wu Xiong   +17 more
wiley   +1 more source

Machine Learning for Improved Directional Drilling

open access: yes, 2018
Directional drilling is a complex process involving the remote control of tool alignment and force application to a very long drill string subject to variable external forces.
Zachary Stoecker-Sylvia   +4 more
core   +1 more source

Nucleoside‐Modified mRNA Encoding Alpha‐Galactosidase A Ameliorates Fabry Disease Phenotypes in Human IPSC‐Derived Cardiomyocytes

open access: yesAdvanced Science, EarlyView.
Human iPSC‐derived Fabry cardiomyocytes exhibited broad transcriptional dysregulation, apoptosis, mitochondrial dysfunction, impaired reactive oxygen species handling, altered contractility, and abnormal calcium transient decay, potentially mediated by phospholamban hyperphosphorylation.
Malte Juchem   +24 more
wiley   +1 more source

Manufacturing system engineering: Horizontal directional drilling (drilling and tooling) [PDF]

open access: yes, 2013
Horizontal directional drilling (HDD), also known as directional drilling as one of the methods of installing underground pipe and conduit.In this research this drilling method is being discussed meticulously.This research reveals the operation and ...
Rajemi, Mohamad Farizal   +4 more
core   +1 more source

Selection of Suitable Drilling Parameters for obtaining high Rate of Penetration in Majnoon Oilfield

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2019
Several directional wells have been drilled in Majnoon oilfield at wide variation in drilling time due to different drilling parameters applied for each well.
Majid M. Majeed, Ayad A. Alhaleem
doaj   +1 more source

High‐Power Hybrid Nanogenerator With Multi‐Degree‐of‐Freedom Mechanical Coupling for Harvesting Water Wave Energy

open access: yesAdvanced Science, EarlyView.
A high‐power hybrid nanogenerator (HP‐HNG) with multi‐degree‐of‐freedom mechanical coupling is reported, integrating multi‐directional wave energy for output to achieve 1 + 1 > 2 energy harvesting. The HP‐HNG achieves a peak output power of 0.764 W, corresponding to a peak power density of 127.303 W m−3. At a wave frequency of 1 Hz, the HP‐HNG delivers
Shuai Ding   +9 more
wiley   +1 more source

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