Results 121 to 130 of about 37,103 (224)

On a Periodic Solution of the 4-Body Problems

Advances in Mathematical Physics, 2014
We study the necessary and sufficient conditions on the masses for the periodic solution of planar 4-body problems, where three particles locate at the vertices of an equilateral triangle and rotate with constant angular velocity about a resting particle.
Jian Chen, Bingyu Li
doaj   +1 more source

Autonomy for MRI Field Cameras: Synchronization, Self‐Calibration, and Sequence Detection

Magnetic Resonance in Medicine, Volume 96, Issue 1, Page 485-498, July 2026.
ABSTRACT Purpose This work aims to provide a workflow for operating NMR field probes in MR scanners independently of pulse programming, scanner TTL trigger pulses and dedicated calibration sequences. Methods An independent timing system and limited prior knowledge about relative probe positions enable synchronous field measurement, probe position ...
Oskar Björkqvist, Klaas P. Pruessmann
wiley   +1 more source

Isolated pulmonary valvular stenosis with equilateral triangle orifice. [PDF]

J Cardiol Cases, 2020
Tsunoda S, Kobayashi Y, Hirano H, Kitamura R, Nakamori S, Matoba S.   +5 more
europepmc   +1 more source

Robotic Quad Zygomatic Implant Surgery Accuracy Ex Vivo With a New Semi‐Autonomous Optically‐Driven Haptic System

Clinical Implant Dentistry and Related Research, Volume 28, Issue 3, June 2026.
ABSTRACT Objectives To evaluate ex vivo accuracy of robotic computer‐assisted implant surgery (r‐CAIS) for quad zygomatic implant (ZI) placement with a novel semi‐autonomous, optically‐driven, haptic‐assisted system. Methods Two expert operators placed ZIs in human cadavers.
Alessandro Pozzi, James Chow, Andrea Laureti, Lorenzo Arcuri, Ilaria Cammarota, Alessandra Nardi, Hom‐Lay Wang   +6 more
wiley   +1 more source

Heat Transfer Performance of Biphilic Surfaces With Diatomite‐Based Composite Coatings in a Closed Thermosyphon System

Heat Transfer, Volume 55, Issue 3, Page 1608-1638, May 2026.
ABSTRACT This study investigates the thermal performance of innovative biphilic boiling surfaces designed for CPU cooling applications using a two‐phase closed thermosyphon (TPCT) system. The surfaces were fabricated by applying composite coatings—comprising epoxy resin and diatomite particles functionalized with APTES and PFOTS silanes— onto Al1050 ...
José Pereira, Reinaldo Souza, António Moreira, Ana Moita   +3 more
wiley   +1 more source

Equilateral Triangle Concept for Relocation of the Nipple in Breast Reduction

Cerrahpaşa Medical Journal
Objective: Planning and marking are vital stages of breast reduction, and a significant step in this process is deciding the new location of the nipple.
Alp Ercan, Leman Damla Ercan, Can Ege Yalçın, Suat Morkuzu   +3 more
doaj   +1 more source

Role of Anharmonicity and Bimetallic Intermixing in the IR and Raman Spectra of Cun$_{n}$ and Pdn$_{n}$Cu6−n$_{6-n}$ Clusters (n<7$n\lt 7$). Ab Initio Benchmarking of DFT

Small Structures, Volume 7, Issue 5, May 2026.
High‐level ab initio and density functional theory calculations reveal a structural and spectroscopic transition from pla nar Cu6 to three‐dimensional Pd6, whose lowest energy triplet state undergoes a Jahn‐Teller distortion. This evolution from molecule‐like to metal‐like bonding produces distinct infrared and Raman fingerprints, providing reliable ...
Katarzyna M. Krupka, Alexander O. Mitrushchenkov, María Pilar de Lara‐Castells   +2 more
wiley   +1 more source

Tilings of an Isosceles Triangle

, 2019
An N-tiling of triangle ABC by triangle T is a way of writing ABC as a union of N trianglescongruent to T, overlapping only at their boundaries. The triangle T is the "tile". The tile may or may not be similar to ABC.
Beeson, Michael
core  

Targeting the noradrenergic‐metabolic axis: A new strategy for sugar‐induced depression subtypes

British Journal of Pharmacology, Volume 183, Issue 9, Page 2099-2122, May 2026.
Abstract Background and Purpose Lifestyle is closely related to major depressive disorder (MDD). Given the growing focus on the impact of diet on mental health, this study examined how dietary habits affect the pathophysiology of MDD. Experimental Approach Health check‐up data were analysed. Mice received sucrose under chronic unpredictable mild stress
Takatoshi Sakata, Kazuo Kunisawa, Masaya Hasegawa, Yumiko Seto, Aoi Ogawa, Hitomi Kurahashi, Yasuko Yamamoto, Masao Takemura, Hidetoshi Matunami, Tomoya Sugai, Noriki Kutsumura, Kuniaki Saito, Toshitaka Nabeshima, Akihiro Mouri   +13 more
wiley   +1 more source

Application of Group‐Theoretical Approaches in Structural Natural Frequency Analyses

International Journal for Numerical Methods in Engineering, Volume 127, Issue 7, 15 April 2026.
ABSTRACT Group theory has profoundly advanced physics and chemistry in systems with symmetries. Yet its use in structural engineering applications has not yet been fully explored beyond the aesthetics of symmetric designs. This work addresses two significant gaps that have limited the broader adoption of group‐theoretic methods in structural vibration ...
Shiyao Sun, Kapil Khandelwal
wiley   +1 more source