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Choosing between fluid power or electrical actuation within a mold handling system


04. March 2021
By Michael R. Fredbloom - Roberts Sinto Corporation, Grand Ledge, Michigan
As the foundry industry strives to improve quality, reliability and maintainability along with reducing their carbon footprint, many companies are starting to explore replacing fluid power (hydraulic, pneumatic or a combination of both) driven systems with electrical actuation (servo-cylinder, electric rack-and-pinion drives). Electrical actuator systems typically offer lower overall noise and reduction in power requirements, eliminate the need for hazardous hydraulic fluids and offer a consistent form of locomotion that can be difficult to achieve using fluid power. This paper will focus on the differences in motion technology, and the advantages and disadvantages of the various systems available today. ....

Us Energy Information Administration , Information Administration , Fluid Power , Servo Cylinder , Rack And Pinion , Michaelr Fredbloom , Roberts Sinto Corporation , Metal Casting , திரவம் பவர் , சர்வோ சிலிண்டர் , ரேக் மற்றும் பினியன் , உலோகம் வார்ப்பு ,

Water leak causes chemical spill in South Boston parking garage


Water leak causes chemical spill in South Boston parking garage
By Charlie McKenna Globe Correspondent,Updated February 18, 2021, 11:28 a.m.
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More than 100 gallons of hazardous hydraulic fluid spilled out of a parking garage in South Boston Thursday.Boston Fire Department
A water leak in a South Boston parking garage Thursday morning caused a chemical spill involving more than 100 gallons of hydraulic fluid, spurring a Hazmat response, fire officials said.
The Boston Fire Department received a call for a water leak at 12 Drydock Ave. at 9:15 a.m., said Brian Alkins, a department spokesman. The leak filled the machine room and elevators with water, sending hydraulic fluid into the street. Firefighters were able to stop the fluid from leaking onto Drydock Avenue. ....

Brian Alkins , Boston Fire Department , South Boston , Boston Fire , போஸ்டன் தீ துறை , தெற்கு போஸ்டன் , போஸ்டன் தீ ,

FAST does 'eye exercises' to maintain top performance


FAST does eye exercises to maintain top performance
By Yang Jun in Guiyang |
chinadaily.com.cn |
Updated: 2021-02-09 14:49
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The 500-meter Aperture Spherical Telescope under construction. It opened in 2016 in Pingtang county Guizhou province. [Photo by Dai Chuanfu/For chinadaily.com.cn]
The 500-meter Aperture Spherical Telescope known as FAST, the world s largest radio telescope in Pingtang county, Guizhou province has been upgraded and maintained many times after making some great achievements.
The so-called China s sky eye has a 250,000-square-meter retina . With more than 2,200 hydraulic actuators acting as neurons to precisely control the retina , how do engineers keep it healthy? ....

Aperture Spherical Telescope ,

Russian Divers Discover Ancient Roman Sea Fortress at Tartus


Mapping Seemingly Insignificant Artifacts
Among the large architectural and hydraulic features that the divers recovered were hundreds of tiny fragments of ancient Greek amphorae (liquid holding containers), Phoenician pots, Egyptian vases, and household artifacts made of Roman stones. While these items might at first sound insignificant compared with the grandeur of the greater discovery, they are of huge archaeological significance.
Not only will these finds be jigsawed together by scientists to determine the life cycle of the ports that existed at the time, but they will also be used to help map the origins of the clay fragments. Knowing where the pottery fragments came from will allow the researchers to rebuild a map of the ancient maritime trade routes that connected this ancient port with the greater Mediterranean economy. ....

Mediterranean Sea , Oceans General , Al Ladhiqiyah , Russian Federation , Dmitry Tatarkov , Marine Research , Department Of Antiquities Tartous , Syrian Archaeological Mission , Ministry Of Defense The Russian Federation , Sevastopol State University , Institute Of Social Sciences , International Relations , Technology Of Sevastopol State University , Social Sciences , Al Masdar News , Ancient Roman Fortress , Syrian Coastal Mountain Range , Russian Syrian Archaeological Mission , Oriental Studies , Russian Academy , Tatarkov Almasdar News , மத்திய தரைக்கடல் கடல் , பெருங்கடல்கள் ஜநரல் , ரஷ்ய கூட்டமைப்பு , கடல் ஆராய்ச்சி , சிரிய தொல்பொருள் பணி ,