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#upstream

tom_s@friendica.ambag.es
tom s

Are all Linux vendor kernels insecure? A new study says yes, but there's a fix

All #vendor #kernels are plagued with #security #vulnerabilities, according to a CIQ whitepaper. Will the #Linux community ever accept #upstream #stable kernels?

In a new white #paper, Vendor Kernels, Bugs and Stability, the infrastructure software and Rocky Linux company CIQ presents a compelling argument that Linux vendor kernels are plagued with security vulnerabilities due to the flawed engineering processes that backport fixes.

While this may shock some, it's an open secret in the Linux community. As Greg Kroah-Hartman, Linux stable kernel maintainer and a prominent member of the kernel security team, recently said: To be secure, you should always use the #latest #long-term stable kernel. The key word here is "latest." It's not enough to use an LTS. You must use the most up-to-date release to be as secure as possible.

https://www.zdnet.com/article/are-all-linux-vendor-kernels-insecure-a-new-study-says-yes-but-theres-a-fix/

Are all Linux vendor kernels insecure? A new study says yes, but there's a fix

All vendor kernels are plagued with security vulnerabilities, according to a CIQ whitepaper. Will the Linux community ever accept upstream stable kernels?

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opensciencedaily@diasp.org
Future Powered

All-perovskite two-terminal tandem solar cell tech with 32.3% efficiency

Indian scientists have designed a new all-perovskite tandem solar cell configuration that can reportedly achieve higher efficiencies than similar devices built with the same materials. The top perovskite cell has a wide bandgap of 1.75 eV and the bottom perovskite cell has a bandgap of 1.25 eV.
https://www.pv-magazine.com/2022/11/14/all-perovskite-two-terminal-tandem-solar-cell-tech-with-32-3-efficiency/
#upstream, #perovskite, #r&d, #manufacturing, #technology, #all, #modules

All-perovskite two-terminal tandem solar cell tech with 32.3% efficiency

Indian scientists have designed a new all-perovskite tandem solar cell configuration that can reportedly achieve higher efficiencies than similar devices built with the same materials. The top perovskite cell has a wide bandgap of 1.75 eV and the...

escheche@diasp.org
Sylvia J

The Green Transition ~ Part1: The Problem with Green Capitalism

https://www.upstreampodcast.org/greentransitionpt1
https://www.upstreampodcast.org/_files/ugd/c8d740_d092b20e72074cc59313ed1dc4030857.pdf

"This is what happens when we simply paint capitalism green without addressing its fundamental global operating principles and processes."

#upstream #podcast #audio #music #transcript #thegreentransition #part1 #green #capitalism #energy #consumption #environment #mining #lithium #copper #cobalt #economics #globalsouth #global #south #indigenous #communities #minerals #globalization #delladuncan #theariofrancos #jasonhickel #sergiochaparro #anajuliaaneise #maxajl #matthiasschmelzer #beaskaniillas #robertraymond

Upstream Podcast | The Green Transition Part 1

Part 1 of Upstream's 2-part documentary series exploring the Green Transition: The Problem with Green Capitalism

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opensciencedaily@diasp.org
Future Powered

Panasonic presents 22.2% efficient all-black heterojunction solar module compatible with its EverVolt battery

The new module series has a power output ranging from 420 to 430 W, a temperature coefficient of -0.26% per degree Celsius, and an efficiency of up to 22.2%.
https://pv-magazine-usa.com/2022/09/21/panasonic-presents-22-2-efficient-all-black-heterojunction-solar-module-compatible-with-its-evervolt-battery/
#markets, #energy, #policy, #manufacturing, #upstream, #modules, #storage

Panasonic presents 22.2% efficient all-black heterojunction solar module compatible with its EverVolt battery

The new module series has a power output ranging from 420 to 430 W, a temperature coefficient of -0.26% per degree Celsius, and an efficiency of up to 22.2%.

One person like that
opensciencedaily@diasp.org
Future Powered

Reverse bias – a hidden challenge for perovskite solar cell stability

New research from renowned PV scientist Martin Green and colleagues at UNSW reveals that perovskite solar cells may struggle to deal with reverse-bias caused by uneven shading or other issues likely to appear in the field. Both the reverse-bias itself and resulting build up of heat can cause several of the materials commonly used in perovskite solar cells to degrade, and these issues have received only limited attention in research published to date. Solutions, however, are at hand.
https://www.pv-magazine.com/2022/07/29/reverse-bias-a-hidden-challenge-for-perovskite-solar-cell-stability/
#modules, #r&d, #technology, #manufacturing, #joule, #upstream

Reverse bias – a hidden challenge for perovskite solar cell stability

New research from renowned PV scientist Martin Green and colleagues at UNSW reveals that perovskite solar cells may struggle to deal with reverse-bias caused by uneven shading or other issues likely to appear in the field. Both the reverse-bias...

One person like that
opensciencedaily@diasp.org
Future Powered

Japan’s first vertical agrivoltaic project

The facility was built with heterojunction modules and mounting systems provided by German companies Luxor Solar and Next2Sun, respectively. The distance between the panel rows ranges from 8 to 10 meters and the agricultural surface within the rows will be utilized by local livestock farmers as pasture.
https://www.pv-magazine.com/2022/04/26/japans-first-vertical-agrivoltaic-project/
#manufacturing, #technology, #commercial, #upstream, #industrial, #pv, #modules

Japan’s first vertical agrivoltaic project

The facility was built with heterojunction modules and mounting systems provided by German companies Luxor Solar and Next2Sun, respectively. The distance between the panel rows ranges from 8 to 10 meters and the agricultural surface within the...

One person like that
opensciencedaily@diasp.org
Future Powered

Ultra-thin perovskite-organic tandem solar cell with 24.0% efficiency

Researchers in Germany have built a perovskite-organic solar cell with low interfacial losses and a high open-circuit voltage. The device achieved an open-circuit voltage of 2.15 V, a short-circuit current of 14.0 mA cm−², and a fill factor of 80%.
https://www.pv-magazine.com/2022/04/19/ultra-thin-perovskite-organic-tandem-solar-cell-with-24-0-efficiency/
#modules, #upstream, #technology, #pv, #organic, #r&d, #manufacturing

Ultra-thin perovskite-organic tandem solar cell with 24.0% efficiency

Researchers in Germany have built a perovskite-organic solar cell with low interfacial losses and a high open-circuit voltage. The device achieved an open-circuit voltage of 2.15 V, a short-circuit current of 14.0 mA cm−², and a fill factor of 80%.

One person like that
opensciencedaily@diasp.org
Future Powered

Could ‘hot carrier’ solar cells break the theoretical efficiency limit?

Up to 50% of the energy absorbed by a solar cell is lost as heat. Scientists are now developing a third generation of “hot carrier” solar cells that take advantage of this heat, potentially breaking the Shockley-Queisser limit of silicon-based PV.
https://www.pv-magazine.com/2022/04/07/could-hot-carrier-solar-cells-break-the-theoretical-efficiency-limit/
#photovoltaic, #photovoltaics, #modules, #r&d, #technology, #upstream, #manufacturing

Could ‘hot carrier’ solar cells break the theoretical efficiency limit?

Up to 50% of the energy absorbed by a solar cell is lost as heat. Scientists are now developing a third generation of “hot carrier” solar cells that take advantage of this heat, potentially breaking the Shockley-Queisser limit of silicon-based PV.

One person like that