Results 91 to 100 of about 171,693 (360)

The Effect of Thickness, Build Orientation, and Loading Rate on the Tensile and Compressive Properties of Selective Laser Sintering Polyamide 12 Specimens

open access: yesAdvanced Engineering Materials, EarlyView.
This article examines how build orientation, thickness, and loading rate affect the tensile and compressive properties of LS‐manufactured polyamide 12 12 parts. Through over 120 experiments, it reveals strong ductility anisotropy in tension, minimal compressive sensitivity, and significant thickness and strain rate dependencies.
Andreas Psarros   +2 more
wiley   +1 more source

Scleral Buckle Infection Caused by Mycobacterium chelonae: A Case Report

open access: yesInternational Medical Case Reports Journal, 2021
Mami Kusaka, Yu Kagitani, Sachiyo Hama, Mihori Kita Department of Ophthalmology, National Hospital Organization Kyoto Medical Center, Kyoto, JapanCorrespondence: Mihori KitaDepartment of Ophthalmology, National Hospital Organization Kyoto Medical Center,
Kusaka M, Kagitani Y, Hama S, Kita M
doaj  

Miniature vibration isolator Patent [PDF]

open access: yes, 1965
Miniature vibration isolator utilizing elastic tubing ...
Butler, D. H., Falk, W. C.
core   +1 more source

Fatigue Performance of Additively Manufactured Ti‐6Al‐4V: Impact of Different Kinds of Porosities, Surface, and Heat Treatments in Laser Powder Bed Fusion Productivity Parameters

open access: yesAdvanced Engineering Materials, EarlyView.
Ti‐6Al‐4V samples produced by laser‐powder bed fusion are tested for static and dynamic mechanical properties to systematically evaluate the effects of surface roughness and internal porosity when using productivity parameters. The most detrimental impact to fatigue is caused by surface roughness, lack of fusion and keyhole porosity in descending order.
Julian Emanuel Gunther Schulz   +4 more
wiley   +1 more source

A New Sutureless Illuminated Macular Buckle Designed for Myopic Macular Hole Retinal Detachment

open access: yesJournal of Ophthalmology, 2017
Purpose. To report the anatomic and visual results of a new sutureless illuminated macular buckle designed for patients with macular hole retinal detachment related to high myopia (MMHRD). Design.
Ahmed M. Bedda   +3 more
doaj   +1 more source

A Comprehensive Review of Additive Manufacturing for Space Applications: Materials, Advances, Challenges, and Future Directions

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing (AM) transforms space hardware by enabling lightweight, high‐performance, and on‐demand production. This review outlines AM processes—powder bed fusion (PBF), directed energy deposition (DED), binder jetting (BJ), sheet lamination (SL), and material extrusion (ME)—applied to propulsion, satellite structures, and thermal devices ...
Stelios K. Georgantzinos   +8 more
wiley   +1 more source

Piping in newsprint rolls [PDF]

open access: yes, 1988
The problem is concerned with the formation of 'piping' or 'moisture welts' on rolls of newsprint; The goal was to develop a mathematical model which would explain why and how these defects occurred, and what might be done to alleviate ...
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core  

Survival to amputation in pre-antibiotic era: a case study from a Longobard necropolis (6th-8th centuries AD) [PDF]

open access: yes, 2018
The Longobard necropolis of Povegliano Veronese dates from the 6th to the 8th centuries AD. Among the 164 tombs excavated, the skeleton of an older male shows a well-healed amputated right forearm.
Boggioni, Marco   +9 more
core   +1 more source

Machine Learning‐Based Design of 3D‐Printable Microneedles for Enhanced Tissue Anchoring with Reduced Tissue Damage

open access: yesAdvanced Engineering Materials, EarlyView.
A machine learning‐driven framework is introduced to optimize 3D‐printable microneedles for enhanced tissue anchoring and reduced insertion damage. The optimized design achieves a 6.0‐fold improvement in pull‐out‐to‐penetration energy ratio over conventional shapes.
Jegyeong Ryu   +5 more
wiley   +1 more source

Restraint system for ergometer [PDF]

open access: yes, 1973
A restraint system for securing a person to an ergometer while exercising under zero gravity conditions or while operating the ergometer in earth environment in a position other than the upright position.
Gause, R. L., Spier, R. A.
core   +1 more source

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