Results 171 to 180 of about 66,927 (247)

Drilling Problems of Directional Drilling

open access: yesJournal of the Japanese Association for Petroleum Technology, 1972
openaire   +2 more sources

Emergent Freestanding Complex Oxide Membranes for Multifunctional Applications

open access: yesAdvanced Materials, EarlyView.
This review surveys freestanding oxide membranes and covers fabrication and three pathways for studies and devices: strain‐free and strained membranes, and van der Waals‐integrated heterostructures. We show how coupled oxide responses map onto these routes and cross‐couple to expand behaviors.
Baowen Li   +6 more
wiley   +1 more source

Drill Geometry and Hole Drilling

open access: yesJournal of the Japan Society for Precision Engineering, 2019
openaire   +2 more sources

Proximity Induced Magnetic Anisotropy and Trefoil Fermiology in Monolayer FeCl2/Bi(111)

open access: yesAdvanced Materials, EarlyView.
Reorientation of magnetic anisotropy in a 2D van der Waals magnet is demonstrated in monolayer FeCl2 epitaxially grown on a bismuth substrate, from its natural out‐of‐plane direction to a predominantly in‐plane orientation. The FeCl2/bismuth heterostructure exhibits moiré‐induced interface states, suggesting strong coupling at the interface.
Shigemi Terakawa   +18 more
wiley   +1 more source

Self‐Oscillating Helix Showing Amplified Winding and Unwinding Motions

open access: yesAdvanced Materials, EarlyView.
The hydrogel helix exhibits autonomous oscillation synchronized with the Ru(bpy)32+/3+ redox cycle in the Belousov–Zhabotinsky reaction. Periodic winding–unwinding accompanies magnified motion along one direction within the gel phase. ABSTRACT Helical architectures in nature amplify motion via winding–unwinding.
Taehun Chung   +11 more
wiley   +1 more source

Evaluation of Experience, Training, and Hand Dominance on Drilling Accuracy in Orthopedic Surgeons-A Preliminary Study. [PDF]

open access: yesMedicina (Kaunas)
Elbaz E   +7 more
europepmc   +1 more source

Redefining Separator Design and Water Activity for High‐Energy Zinc Batteries Using Covalent Organic Framework

open access: yesAdvanced Materials, EarlyView.
Device‐level zinc batteries are energy‐limited by the mass/volume of inactive components, while lean‐electrolyte operation triggers interfacial water depletion and unstable kinetics. Here we elucidate lean‐failure mechanisms and develop a COF@PAN functional separator that regulates hydrogen‐bonding networks to manage water activity and accelerate ...
Kun Zhang   +12 more
wiley   +1 more source

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