Results 191 to 200 of about 2,616,719 (394)

Large‐Scale Interlaboratory Study Along the Entire Process Chain of Laser Powder Bed Fusion: Bridging Variability, Standards, and Optimization across Metals and Polymers

open access: yesAdvanced Engineering Materials, EarlyView.
What happens when 32 labs join forces to study nanoparticle‐modified powders? A data‐driven journey through laser powder bed fusion—now openly accessible for the entire additive manufacturing community—is studied. Laser powder bed fusion is a cornerstone technology for additive manufacturing (AM) of metals and polymers, yet challenges in achieving ...
Ihsan Murat Kuşoğlu   +73 more
wiley   +1 more source

Three radii associated to Schur functions on the polydisk [PDF]

open access: yesarXiv
This article examines three radii associated to bounded analytic functions on the polydisk: the well-known Bohr radius, the Bohr-Agler radius, and the Schur-Agler radius. We prove explicit upper and lower bounds for the Bohr-Agler radius, an explicit lower bound for the Schur-Agler radius, and an asymptotic upper bound for the Schur-Agler radius.
arxiv  

Geometric approach to define a railway plan model

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
The construction of new railway lines is based on the railway plan. There are various ways to draw up a railway plan. The basis of all railway plans is a scheme of geometric point locations, the projection of the center of gravity of the carriage is on ...
A. Artykbaev, M.M. Toshmatova
doaj   +1 more source

Laser Additive Manufacturing of Oxide‐Dispersion‐Strengthened Steels: A Simulation‐Based Comparison Between Powder Bed Fusion and Direct Energy Deposition

open access: yesAdvanced Engineering Materials, EarlyView.
Controlling the size and distribution of dispersoids is essential for optimizing the performance of oxide‐dispersion‐strengthened steels. This study focuses on nanoparticle dispersion and agglomeration during laser additive manufacturing of Fe20Cr alloy reinforced with ZrO 2 nanoparticles. Utilizing multiphysics phase‐field simulations and nanoparticle
Somnath Bharech   +6 more
wiley   +1 more source

Congenital Radioulnar Synostosis Review: Recommendations and Treatment Outcomes

open access: yesChildren
Background/Objectives: Congenital radioulnar synostosis (CRS) is a rare congenital disorder of the elbow joint caused by the abnormal fusion of the radius and ulna during fetal development, leading to limited forearm rotation and functional impairment ...
Sergi Alabau-Rodriguez   +5 more
doaj   +1 more source

Bose-Einstein Correlations from Opaque Sources

open access: yes, 1997
Bose-Einstein correlations in relativistic heavy ion collisions are very different for opaque sources than fortransparent ones. The Bose-Einstein radius parameters measured in two-particle correlation functions depend sensitively on the mean free path of
Heiselberg, H., Vischer, A. P.
core  

Shape Memory Polymer‐Based Hook‐and‐Loop Fastener for Robust Bonding and on‐Demand Easy Separation

open access: yesAdvanced Engineering Materials, EarlyView.
A 3D shape memory polymer‐based hook‐and‐loop fastener, fabricated using projection microstereolithography and molding, offers tunable bonding strength through temperature control. When heated from 25 to 70 °C, the fastener softens and deforms easily, reducing bonding strength by 20‐fold for on‐demand easy separation.
Chen Yang   +5 more
wiley   +1 more source

GIANT CELL TUMOR OF THE LOWER END OF THE RADIUS

open access: yesActa Medica Iranica, 1999
Five cases of giant cell tumor of the lower end of radius are reported. Three of the patients were women and two were men, the youngest of the patients was 18 years old and oldest 37 years.
M. Farzan
doaj  

AN INVESTIGATION REGARDING NUTRIENT FORAMEN OF THE RADIUS

open access: yesİstanbul Tıp Fakültesi Dergisi
Objective: Arteries that provide nutrition to the long bones pass through openings called nutrient foramen (NF). The number of studies on NFs of the radius is quite scarce.
Elif Toklu   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy