Results 111 to 120 of about 124,299 (312)

Impact of Combined Resection of the Pancreas on Long‐Term Survival in Gastric Cancer

open access: yesAnnals of Gastroenterological Surgery, EarlyView.
Short‐term and long‐term results of patients underwent conbined pancreatectomy was investigated in 64 patients with gastric cancer. R1 resection and postoperative intraabdominal infectious complications were identified as independent prognostic factors.
Taku Hattori   +8 more
wiley   +1 more source

Flexible Memory: Progress, Challenges, and Opportunities

open access: yesAdvanced Intelligent Discovery, EarlyView.
Flexible memory technology is crucial for flexible electronics integration. This review covers its historical evolution, evaluates rigid systems, proposes a flexible memory framework based on multiple mechanisms, stresses material design's role, presents a coupling model for performance optimization, and points out future directions.
Ruizhi Yuan   +5 more
wiley   +1 more source

Oil-Free Turbomachinery Research Enhanced by Thrust Bearing Test Capability [PDF]

open access: yes
NASA Glenn Research Center s Oil-Free Turbomachinery research team is developing aircraft turbine engines that will not require an oil lubrication system.
Bauman, Steven W.
core   +1 more source

High temperature coatings for gas bearings [PDF]

open access: yes, 1969
Aluminum oxide and nickel-chrome bonded chrome carbide coatings enhance the performance of gas bearings at temperatures up to 1400 degrees F. A plasma-sprayed aluminum-oxide coating is applied to the bearing surface and a plasma- sprayed 25 percent ...
Murray, S. F.
core   +1 more source

A Soft‐Tip Hydraulically Steerable Catheter for Enhanced Flexibility and Safety in Vascular Interventions

open access: yesAdvanced Intelligent Systems, EarlyView.
This study introduces a hydraulically steerable catheter with a soft tip in vascular procedures. The steering soft tip achieves a minimal diameter of 2.6 mm and supports a 180° bend. Real‐time shape and position tracking, facilitated by segmentation and endpoint detection techniques, improves navigation.
Jingyi Kang   +9 more
wiley   +1 more source

A review: Enhancing tribological properties of journal bearings composite materials

open access: yesOpen Engineering
Tribology is the science of studying friction, wear, and lubrication. Composite materials consist of two or more constituents (phases): the discontinuous phase represents the reinforcement and the continuous phase represents the matrix.
Ghani Suadad Noori   +2 more
doaj   +1 more source

A Comparative Study of Theoretical and Experimental Analysis on Balanced and Unbalanced Rotors Supported by Oil- and Water-Lubricated Journal Bearings

open access: yesMachines
Studying rotor-bearing systems involving fluid film bearings is essential for designing and assessing the dynamic responses and performance of rotating machinery. They are involved in many applications such as pumps, turbines, and engines.
Omar Ahmed   +2 more
doaj   +1 more source

Effect of Surface Roughness on Hydrodynamic Bearings [PDF]

open access: yes
A theoretical analysis on the performance of hydrodynamic oil bearings is made considering surface roughness effect. The hydrodynamic as well as asperity contact load is found.
Hamrock, B. J., Majumdar, B. C.
core   +1 more source

Design curves for optimizing stability of herringbone-grooved journal bearings [PDF]

open access: yes, 1973
Curves span wide range of operating conditions, including: lubricant compressibility numbers from 0 to 80, bearing length-to-diameter ratios from 1/4 to 2, and either rotating or stationary grooved ...
Fleming, D. P., Hamrock, B. J.
core   +1 more source

Three Synchronized, Miniaturized, Wireless Inertial Measurement Unit Sensors for Automated Gait and Balance Analysis System

open access: yesAdvanced Intelligent Systems, EarlyView.
This study presents a compact, three IMU wearable system that enables accurate motion capture and robust gait‐feature extraction, thereby supporting reliable machine learning‐based balance evaluation. Accurate assessment of balance is critical for fall prevention and targeted rehabilitation, particularly in older adults and individuals with ...
Seok‐Hoon Choi   +8 more
wiley   +1 more source

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