scholarly journals Disturbance Force Estimation for a Low Pressure Suction Gripper Based on Differential Pressure Analysis.

2020 ◽  
pp. 263-273
Author(s):  
Benjamin Wirth ◽  
Sven Coutandin ◽  
Jürgen Fleischer
Keyword(s):  
Low Pressure ◽  
Differential Pressure ◽  
Force Estimation ◽  
Pressure Suction ◽  
Pressure Analysis

scholarly journals Mixing unmixables: Unexpected formation of Li-Cs alloys at low pressure

2015 ◽  
Vol 1 (9) ◽  
pp. e1500669 ◽  
Author(s):  
Serge Desgreniers ◽  
John S. Tse ◽  
Takahiro Matsuoka ◽  
Yasuo Ohishi ◽  
Justin J. Tse
Keyword(s):  
Thermal Expansion ◽  
Theoretical Prediction ◽  
Maximum Entropy Method ◽  
Coefficient Of Thermal Expansion ◽  
Low Pressure ◽  
Entropy Method ◽  
Unexpected Formation ◽  
High Coefficient ◽  
Group I ◽  
Pressure Analysis

Contrary to the empirical Miedema and Hume-Rothery rules and a recent theoretical prediction, we report experimental evidence on the formation of Li-Cs alloys at very low pressure (>0.1 GPa). We also succeeded in synthesizing a pure nonstoichiometric and ordered crystalline phase from an approximately equimolar mixture and resolved its structure using the maximum entropy method. The new alloy has a primitive cubic cell with the Li atom situated in the center and the Cs at the corners. This structure is stable to at least 10 GPa and has an anomalously high coefficient of thermal expansion at low pressure. Analysis of the valence charge density shows that electrons are donated from Cs to the Li “p”-orbitals, resulting in a rare formal oxidation state of −1 for Li. The observation indicates the diversity in the bonding of the seeming simple group I Li element.

A safe and effective disposable low pressure suction drain

1979 ◽  
Vol 66 (9) ◽  
pp. 657-659 ◽  
Author(s):  
M. F. Seely ◽  
W. A. Hyde ◽  
Miles Irving
Keyword(s):  
Low Pressure ◽  
Suction Drain ◽  
Pressure Suction

scholarly journals REDUCTION OF PERFUSION HEMOLYSIS BY THE USE OF ATRAUMATIC LOW-PRESSURE SUCTION

1964 ◽  
Vol 47 (2) ◽  
pp. 242-247 ◽  
Author(s):  
Teruo Hirose ◽  
Sheldon O. Burman ◽  
Robert A. O'Connor
Keyword(s):  
Low Pressure ◽  
Pressure Suction

Selection of Shale Preparation Protocol and Outgas Procedures for Applications in Low-Pressure Analysis

2017 ◽  
Vol 31 (9) ◽  
pp. 9043-9051 ◽  
Author(s):  
Randall Holmes ◽  
Erik C. Rupp ◽  
Vikram Vishal ◽  
Jennifer Wilcox
Keyword(s):  
Low Pressure ◽  
Selection Of ◽  
Pressure Analysis

scholarly journals Low suction on digital drainage devices promptly improves post-operative air leaks following lung resection operations: a retrospective study

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Suguru Mitsui ◽  
Shunsuke Tauchi ◽  
Takahiro Uchida ◽  
Hisashi Ohnishi ◽  
Toshio Shimokawa ◽  
...  
Keyword(s):  
Chest Tube ◽  
Pulmonary Resection ◽  
Lung Resection ◽  
Low Pressure ◽  
Volume Of Fluid ◽  
Suction Pressure ◽  
Air Leaks ◽  
Tube Removal ◽  
Chest Tube Removal ◽  
Pressure Suction

Abstract Background We investigated the most effective suction pressure for preventing or promptly improving postoperative air leaks on digital drainage devices after lung resection. Methods We retrospectively analyzed the postoperative data of 242 patients who were monitored with a digital drainage system after pulmonary resection in our institution between December 2017 and June 2020. We divided the patients into three groups according to the suction pressure used: A (low-pressure suction group: − 5 cm H2O), B (intermediate-pressure group: − 10 cm H2O), and C (high-pressure suction group: − 20 cm H2O). We evaluated the duration of air leaks, timing of chest tube replacement, the amount of postoperative air leak, volume of fluid drained before chest tube removal, and the total number of air leaks during drainage. Results In total, 217 patients were included in this study. The duration of air leaks gradually decreased with significant difference between the groups, the highest decrease in A, the lowest decrease in C (P = 0.019). Timing of chest tube replacement, on the other hand, did not significantly differ between the three groups (P = 0.126). The number of postoperative air leaks just after surgery did not significantly differ between the three groups (P = 0.175), but the number of air leaks on postoperative day 1 were fewest in group A, then B, and greatest in group C (P = 0.033). The maximum amount of air leaks during drainage was lowest in A, then B, and highest in C (P = 0.036). Volume of fluid drained before chest tube removal did not significantly differ between the three groups (P = 0.986). Conclusion Low-pressure suction after pulmonary resection seems to avoid or promptly improve postoperative air leaks in digital drainage devices after lung resection. Trial registration This is a single-institution, retrospective analysis-based study of data from an electronic database. Study protocol was approved by the Akashi Medical Center Institutional Research Ethics Board (approval number: 2020–9).

scholarly journals Introduction of a low pressure suction system for day case large volume paracentesis: results from a scottish teaching hospital

Gut ◽  
2011 ◽  
Vol 60 (Suppl 1) ◽  
pp. A245-A245
Author(s):  
E. Reed ◽  
A. Stanley ◽  
E. Forrest ◽  
R. Gillespie ◽  
M. Neilson ◽  
...  
Keyword(s):  
Teaching Hospital ◽  
Large Volume ◽  
Low Pressure ◽  
Day Case ◽  
Suction System ◽  
Large Volume Paracentesis ◽  
Pressure Suction

scholarly journals The height limit of a siphon

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
A. Boatwright ◽  
S. Hughes ◽  
J. Barry
Keyword(s):  
Sea Level ◽  
Vapour Pressure ◽  
Ambient Pressure ◽  
Barometric Pressure ◽  
Low Pressure ◽  
Conclusive Evidence ◽  
Differential Pressure ◽  
Maximum Height ◽  
Reservoir Level ◽  
Pressure Region

Abstract The maximum height of a siphon is generally assumed to be dependent on barometric pressure—about 10 m at sea level. This limit arises because the pressure in a siphon above the upper reservoir level is below the ambient pressure and when the height of a siphon approaches 10 m, the pressure at the crown of the siphon falls below the vapour pressure of water causing water to boil breaking the column. After breaking, the columns on either side are supported by differential pressure between ambient and the low-pressure region at the top of the siphon. Here we report an experiment of a siphon operating at sea level at a height of 15 m, well above 10 m. Prior degassing of the water prevented cavitation. This experiment provides conclusive evidence that siphons operate through gravity and molecular cohesion.

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