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Welcome To IANS Live - SCIENCE - Chrome 90 will let you share links to highlighted text


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San Francisco, April 18 (IANS) Google has started rolling out a feature for Chrome 90, which will allow users to create a link that takes people to the part of a page you highlighted.
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Update: 18-April-2021 ....

San Francisco , United States , India Private , News Service , All Rights , சான் பிரான்சிஸ்கோ , ஒன்றுபட்டது மாநிலங்களில் , இந்தியா ப்ரைவேட் , செய்தி சேவை , அனைத்தும் உரிமைகள் ,

"Effect of WC particle size on microstructure and diffusion at the inte" by Gang Li, Hongmei Zhang et al.


Abstract
Tungsten carbide/high strength steel (WC/HSS) composites were prepared by cold pressing and vacuum sintering. The microstructure and micro-hardness of the composites with different particle sizes were analyzed by optical microscopy (OM), scanning electron microscopy (SEM), ultra-high temperature laser confocal microscope and microhardness tester. The results show that WC density tended to increase as the average grain size of WC decreased. When the particle size of WC powder was 100 nm, the density reached 91.22%. The micro-hardness of WC increased with the decrease of WC particle size. When the particle size of WC powder was 100 nm and sintering temperature was 1 320 ℃, the micro-hardness of WC reached about 1680 HV . The micro-hardness of WC near the bonding interface was higher than that of other parts. The microhardness of HSS core varied little with WC particle size, which was about 500 HV . When the particle size of WC powder particles was 200 nm, a transition ....

Article Size ,

New Multipurpose Centrifuge Accelerates Results


Apr 16 2021 Read 4 Times
Leading life science company Eppendorf has introduced a new centrifuge designed to increase efficiency in the laboratory, the Centrifuge 5910 Ri. This new centrifuge is the successor to the popular Centrifuge 5910 R, the flagship of Eppendorf’s multipurpose centrifuge portfolio that has been providing customers worldwide with outstanding versatility and ease of use since its launch in 2018.
With the introduction of the Centrifuge 5910 Ri, Eppendorf now offers scientists advanced features to simplify and accelerate their centrifugation workflow steps. An innovative touchscreen interface allows for quick setting of desired parameters, while three levels of user management and new documentation options provide enhanced security and traceability. The optional connection to the new VisioNize® Digital Lab Suite enables remote monitoring of the device, notification of alarms and events, and convenient access to important documents such as certificates ....

Digital Lab Suite , Eppendorf Centrifuge ,

"Stable Sodium Metal Anode Enabled by an Interface Protection Layer Ric" by Ming Zhu, Yuanjun Zhang et al.


Abstract
Sodium (Na) metal is considered as a promising anode candidate for large-scale energy storage systems because of its high theoretical capacity and low electrochemical redox potential. However, Na anode suffers from a few challenges, such as the dendrite growth and severe parasitic reactions with electrolytes, which greatly hinder its practical applications. In this work, we demonstrate that an organosulfur compound additive (tetramethylthiuram disulfide) provides a facile and promising approach to overcome the above challenges in carbonate-based electrolytes. This unique organosulfur additive can in situ form a stable interfacial protection layer rich in organic sulfide salts on the sodium metal surface during cycling, leading to a stable stripping/plating cycling. Additionally, a cycling Coulombic efficiency of 94.25% is achieved, and the full battery using Prussian Blue as a cathode delivers a reversible capacity of 86.2 mAh g-1 with a capacity retention of 80% afte ....

Prussian Blue , Dendrite Free Sodium Deposition , Electrolyte Additive , A Metal Anodes , Organosulfur Compound , பிரஷ்யன் நீலம் ,