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Inspired by the human heart, Penn Engineers design tear-resistant soft material（图）
抗撕裂软材料 人类心脏 机器人
2023/7/7
The human heart beats more than two billion times in an average lifespan. The aorta’s tissue is strong enough to withstand this stress, yet flexible enough to maintain a steady flow of blood. But how ...
How to design a sail that won’t tear or melt on an interstellar voyage（图）
星际航行 帆 机械工程 应用力学 航天器结构与设计
2023/7/11
Astronomers have been waiting decades for the launch of the James Webb Space Telescope, which promises to peer farther into space than ever before. But if humans want to actually reach our nearest ste...
Tear production after partial removal of main lacrimal gland in dogs
lacrimal gland dog tear surgery
2010/9/21
The partial removal allowed the lacrimal gland remaining to offset the production of aqueous tear film: the values found in tear production were above normal throughout the trial period. Induction of ...
Effect of Thermocycling on Tensile Strength and Tear Resistance of Four Soft Denture Liners
Liner Strength Thermocycling
2009/9/14
This study evaluated the effect of thermocycling on the tensile strength and tear resistance of four long-term soft denture liners. One light-activated (Astron Light, AL), two chemically activated (GC...
Correlation of Planting Density with Yield and Yield Components in Job’s-Tear Plant (Coix lacryma-jobi L. var frumentacea Makino)
Diameter of stem Planting density Yield Yield component Dry weight Number of node
2009/7/9
Job’s-tears (Coix lacryma-jobi L. var frumentacea Makino), cv. Hatochikara was sown in an upland field converted from a paddy field at the densities of 2.8, 5.6, 6.3, 8.3, 11.1, 16.0 and 25.0 hill pe...
Action of Aspirin on Acetylcholine-Stimulated Tear Secretion in Rats
Aspirin acetylsalicylic acid acetylcholine tear secretion rat
2009/6/30
In this study we investigated the effect of acetylsalicylic acid (ASA) on tear secretion in rats. The animals were anesthetized intraperitoneally (ip) with urethane (1,2g/kg). The treatment was inject...
Ocular tear film bubble counts after recreational compressed air diving
dry air bubble count Ocular tear film recreational dive
2009/6/5
Other authors have demonstrated an increase in tear film bubble counts following dry, compressed air dives. We examined the lower tear film meniscus for the presence of bubbles in 42 divers after comp...
Tear film bubbles and decompression illness. Finally diagnostic test to cry for?
Bubbles decompression illness hyperbaric research
2009/5/18
This presentation is intended to outline what may, in
time, prove to be an important diagnostic tool for
Ocular tear film bubble counts in swimmers and snorkellers
Recreational diving snorkelling swimming tear film bubbles decompression illness diagnosis
2009/5/18
Background: The number of ocular tear film bubbles is increased following compressed air single- and multi-day diving in both sea water and hyperbaric chambers. However, the effect of sea water immers...
Ocular tear film bubble counts after recreational compressed air diving.
dry air recreational diving bubble count Ocular tear film
2009/5/13
Other authors have demonstrated an increase in tear film bubble counts following dry, compressed air dives. We examined the lower tear film meniscus for the presence of bubbles in 42 divers after comp...
Rotator Cuff Tear Pain and Tear Size and Scapulohumeral Rhythm
shoulder kinematics scapula biomechanics
2010/9/9
The body of knowledge concerning shoulder kinematics in patients with rotator cuff tears is increasing. However, the level of understanding regarding how pain and tear size affect these kinematic patt...
A Comparative Analysis of Tear Strength Methods
tear force tearing strength testing methods static tearing
2009/2/7
Fabric utility parameters most often depend on its mechanical properties. The most important
strength parameters include unidirectional tensile strength, tear strength and elasticity properties. In t...
The Diagnostic Value of Sonography in Bucket Handle Tear of Meniscus and Complete MCL Tear Compared with Arthroscopy
ultrasonography arthroscopy bucket handle tear meniscus medial collateral ligament knee joint
2010/2/4
Background/Objective: The concept of evaluating the musculoskeletal system with ultrasound was initially introduced in the late 1970s. For evaluating meniscal tears, which are a common injury in traum...