Results 11 to 20 of about 5,634 (210)

Does instrumentation and irrigation configuration affect intrarenal pressure during PCNL? [PDF]

open access: yesBJUI Compass
Abstract Objectives To measure the effects of varying configurations of nephroscope sheath, irrigation, instruments, and suction on intrarenal pressure (IRP) during percutaneous nephrolithotomy (PCNL). Materials and Methods Kidney and ureter 3D printed models from a deidentified patient's CT scan were placed in a plaster and foam mould, simulating the ...
Seibly E   +15 more
europepmc   +2 more sources

Effect of laboratory heat stress on mortality and web mass of the common house spider, Parasteatoda tepidariorum (Koch 1841) (Araneae: Theridiidae) [PDF]

open access: yes, 2020
We determined the effects of chronic heat stress on web construction of Parasteatoda tepidariorum (Araneae: Theridiidae) by measuring the survival and web mass of specimens after a 48-h period within a temperature chamber at 21, 30, 35, 40, or 50°C.
Brown, Aubrey J., Houghton, David
core   +2 more sources

Experimental evaluation of dowel-type timber joints with wooden dowels

open access: yesProceedings of the Institution of Civil Engineers - Structures and Buildings, 2020
Dowel-type timber joints made of wood are of particular interest for interventions on built heritage because such heritage buildings often involve timber structures. Wooden dowels offer a lower cost when compared with other connectors and conform to the tendency for using wood-based solutions to retrofit timber structures.
Ioana Teodorescu   +3 more
openaire   +2 more sources

Experimental and Numerical Study on Shear Properties of Timber-to-timber Joint Using a Dowel Reinforced with a Self-tapping Screw

open access: yesBioResources, 2023
Herein, a beech wood dowel reinforced with a self-tapping screw (composite dowel in brief) is proposed. Composite dowels were welded into the predrilled holes by high speed rotation.
Jie Shen, Xudong Zhu, Jianbing Chen
doaj   +2 more sources

Legged Locomotion in Lattices: Centipede Traversal of Obstacle-Rich Environments. [PDF]

open access: yesAnn N Y Acad Sci
We investigated how centipedes adapted their limb stepping and body bending patterns in a dense array of rigid obstacles (vertical posts). Centipedes maintained a rapid speed in the obstacle array by adapting their gaits in several ways, including adducing their limbs along their bodies to mitigate collisions, twisting their bodies into more favorable ...
Pierce CJ   +6 more
europepmc   +2 more sources

New Techniques for Associating the Stages of Aquatic Insects [PDF]

open access: yes, 2017
(excerpt) The immature forms of many benthic insect species are presently either undescribed or unidentifiable. The result is that associations with corresponding adult forms are often necessary in order to confirm specific and sometimes generic ...
McCafferty, W P, Provonsha, A. V.
core   +3 more sources

Endurance of the wooden bridge reinforced by the dowel plates [PDF]

open access: yesStudia Geotechnica et Mechanica, 2018
Abstract The most important piece of road infrastructure is bridges. Wooden bridges have advanced constantly during the past decades. The trend began in Scandinavian countries but has also now gained significant ground in Russia. This research studies experimental endurance potential of the joints of the wooden beam while considering ...
Dahoua, Lamri, Boymatov, Fakhridine
openaire   +2 more sources

Investigation of Welded Joints with Linear Turned Beech Elements [PDF]

open access: yes, 2010
Welding of wood is a process where chemical and physical reactions take place, heat isformed during the friction, which melts and softens the structure of wood, and a firm joint is formedby cooling of the melt.The paper discusses the present knowledge ...
BOGNER, Andrija   +3 more
core   +1 more source

Investigating the effect of diameter and dowel surface in softwood joints, made by welding and glue [PDF]

open access: yesتحقیقات علوم چوب و کاغذ ایران, 2017
Joints in furniture and wooden structures due to the highly sensitive bearing load are today one of the most important scientific topics. The most recent method proposed to build wooden joints in Europe and the United States is a method eco-friendly ...
PANTEA OMRANI   +2 more
doaj   +1 more source

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