Results 61 to 70 of about 120,559 (295)

Design of the structural arrangement for a space reflector via parametric and topology optimization

open access: yesRUDN Journal of Engineering Research, 2019
Development of the optimal structural arrangement for a reflector with the aim to improve its mass and design is of importance due to the necessity to increase areal density and decrease rigidity of the modern space antennas vehicles.
Elena K. Filina   +3 more
doaj   +1 more source

Heteroleptic Ag(I) Complexes Bearing Benzothiazole and Benzoxazole Ligands for Orange‐Red Light‐Emitting Electrochemical Cells

open access: yesAdvanced Optical Materials, EarlyView.
Light‐emitting Electrochemical Cells (LECs) are appealing electroluminescent devices with potential application in low‐cost, large‐area display technology and disposable devices. In the manuscript, a novel family of bright photo‐ and electro‐active heteroleptic silver(I) is presented and comprehensively investigated.
Valerio Giuso   +5 more
wiley   +1 more source

Honeycomb ribs design on overcoming part warping [PDF]

open access: yes, 2012
Thin walled plastic parts are subjected to warpage after injection. Warpage can be overcome by designing ribs. This experimental project is to design a suitable honeycomb ribs replacing the normal ribs to overcome part warping.
Nik Zuraida, Imran Adly
core   +2 more sources

Osteochondroma of rib

open access: yesPan African Medical Journal, 2022
Osteochondroma is also known as exostosis and is a benign bone tumour. It commonly presents in the first 3 decades of life with a male preponderance. The most common site for the development of these tumours is the metaphysis of long bones, with almost 30% of cases originating from the distal metaphysis of the femur.
openaire   +3 more sources

Photoluminescent Color Centers on a Mainstream Silicon Photonic Foundry Platform

open access: yesAdvanced Optical Materials, EarlyView.
Silicon photonic chips route and process light efficiently but are inherently inefficient at generating it. Here, bright light‐emitting defects, W‐centers, are written into the silicon layer of finished chips from a mainstream commercial foundry: high‐energy ions are implanted straight through the protective oxide and activated by a 250∘C$^\circ{\rm C}$
Prosper Dellah Allo   +7 more
wiley   +1 more source

Management of cervical ribs and anomalous first ribs causing neurogenic thoracic outlet syndrome [PDF]

open access: yes, 2002
Objective: Cervical and anomalous first ribs are rare conditions, occurring in less than 1% of the population. This manuscript reviews our management of neurogenic thoracic outlet syndrome (TOS) associated with these congenital anomalies. Methods: During
Sanders, Richard J.   +3 more
core   +1 more source

Rib Haemangioma: A Rare Differential for Rib Tumours [PDF]

open access: yesIndian Journal of Surgery, 2011
Haemangiomas account for approximately 1% of all bone tumours and commonly involve the skull and the vertebrae Dorfman et al. (Human Pathol 2:349-376, 1971). Rare costal originated haemangiomas have been reported as a case report in literature Clements et al. (Am Surgeon 64:1027-1029, 1998), Filosso et al. (J Cardiovasc Surg 36:97-98, 1995).
Sanjay K, Jain   +5 more
openaire   +2 more sources

Thermodynamics of Concomitant Charge‐Transfer, Antiferromagnetic, and Isostructural Phase Transitions in Barocaloric ACu3Fe4O12 Quadruple Perovskites

open access: yesAdvanced Science, EarlyView.
A copper‐iron charge transfer instability drives concomitant electronic, magnetic, and isostructural phase transitions in ACu3Fe4O12${\rm ACu}_3{\rm Fe}_4{\rm O}_{12}$, with an inverse barocaloric effect. A minimal Landau theory ties these thermodynamic signatures together, revealing a pressure‐independent transition entropy with comparable charge and ...
Jefferson Delgado‐Quesada   +1 more
wiley   +1 more source

Reinforced concrete ribbed slabs with wide-beam

open access: yesRevista IBRACON de Estruturas e Materiais, 2018
Ribbed slabs have been widely used in buildings due to their many advantages, especially the decrease of concrete below the neutral line. This paper presents an experimental and computational study on ribbed slabs with wide-beam, two one-way slabs and ...
P. V. P. SACRAMENTO   +2 more
doaj   +2 more sources

Longitudinal Morphomolecular Monitoring of Head and Neck Carcinogenesis

open access: yesAdvanced Science, EarlyView.
A miniaturized endoscopic probe that integrates Raman spectroscopy and optical coherence tomography, enabling simultaneous molecular and structural imaging of living tissue, was developed. Applied longitudinally in a mouse model of head and neck cancer, the system tracks disease progression from precancerous lesions to invasive cancer.
Jianrong Qiu   +7 more
wiley   +1 more source

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