Results 21 to 30 of about 91,634 (167)

Development of constructive solutions for interfaces of wooden beams and CLT [PDF]

open access: yesE3S Web of Conferences
Today, the issue of the development of joints of wooden elements, in particular the joints of CLT and wooden beams, is topical. The aim of the work is to develop a nodal connection of wooden beams and CLT, which has increased reliability and has no ...
Dezhin Maxim, Ibragimov Aleksandr
doaj   +1 more source

An Archimedes' Screw for Light

open access: yesNature Communications, 2021
Abstract An Archimedes' Screw captures water, feeding energy into it by lifting it to a higher level. We introduce the first instance of an optical Archimedes' Screw, and demonstrate how this system is capable of capturing light, dragging it and amplifying it.
Emanuele Galiffi   +2 more
openaire   +6 more sources

Experimental testing of reinforced end-notched glulam beams [PDF]

open access: yesGrađevinski Materijali i Konstrukcije, 2018
Notches made at the ends of timber beams significantly decrease load carrying capacity of a structural member. This paper presents an experimental research on bending behaviour of end-notched glulam beams, with and without reinforcement.
Todorović Marija   +3 more
doaj  

“Song of the Screw” [PDF]

open access: yesNature, 1880
PROF. TAIT has inadvertently attributed to the late lamented Prof. Clerk Maxwell. (NATURE, vol. xxi. p. 321) an effusion of mine consisting of a synopsis of Dr. Ball's Treatise on Screws, which appeared in NATURE, vol. xiv. p. 30, under the above title.
openaire   +1 more source

Surgical treatment of spinal deformities in Marfan syndrome: Long-term follow-up results using different instrumentations

open access: yesJournal of Craniovertebral Junction and Spine, 2019
Background: Scoliosis is the most frequent spinal deformity related to Marfan syndrome (MFS). Treatment with a brace is often ineffective, and surgical treatment is very challenging; many instrumentations were used along the years.
Matteo Palmisani   +5 more
doaj   +1 more source

Advancements in Nanotechnology for Spinal Surgery: Innovations in Spinal Fixation Devices for Enhanced Biomechanical Performance and Osteointegration

open access: yesNanomaterials
Spinal injuries have a major impact on patients’ quality of life due to the implacable consequences they bring, such as reduced mobility and loss of flexibility, in most cases requiring surgery to restore spinal stability and functionality.
Bogdan Costăchescu   +4 more
doaj   +1 more source

Primary stability analysis of the torque-resistant orthodontic miniscrew anchorage

open access: yesAdvances in Mechanical Engineering, 2022
Though miniscrews are widely used as a temporary anchorage device, research focusing on the primary stability of miniscrew loading torque force is limited.
Yushan Ye   +6 more
doaj   +1 more source

Technological Level of Machines in Production Process of Screws

open access: yesActa Technologica Agriculturae, 2014
The article focuses on analysing one of the elements of technological level in a company using the ABC method. The technological modernity of a machine used during the production process of screws was evaluated.
Ingaldi Manuela   +1 more
doaj   +1 more source

Transforaminal “in-out-in” screw technique for posterior C2 fixation in cases with a narrow C2 pedicle: anatomical considerations, technical notes, and preliminary clinical results [PDF]

open access: yesAsian Spine Journal
Numerous techniques for C2 screw fixation have been recently reported. However, concerns remain regarding the risk of spinal cord or vertebral artery injury and inadequate biomechanical stability. To our knowledge, the specific transforaminal “in-out-in”
Jun Yan   +5 more
doaj   +1 more source

Cortical screw placement with a spinous process clamp guide: a cadaver study accessing accuracy

open access: yesBMC Surgery, 2022
Background and objective The Cortical Bone Trajectory (CBT) technique provides an alternative method for fixation in the lumbar spine in patients with osteoporosis.
Xi-nuo Zhang   +11 more
doaj   +1 more source

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