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Archive for the ‘sustainability’ category: Page 150

May 16, 2023

Engineering graphene-based quantum circuits with atomic precision

Posted by in categories: biological, chemistry, engineering, nanotechnology, particle physics, quantum physics, sustainability

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Imagine having a building made of stacks of bricks connected by adaptable bridges. You pull a knob that modifies the bridges and the building changes functionality. Wouldn’t it be great?

A team of researchers led by Prof. Aitor Mugarza, from the Catalan Institute of Nanoscience and Nanotechnology (ICN2) and ICREA, together with Prof. Diego Peña from the Center for Research in Biological Chemistry and Molecular Materials of the University of Santiago de Campostela (CiQUS-USC), Dr. Cesar Moreno, formerly a member of ICN2’s team and currently a researcher at the University of Cantabria, and Dr. Aran Garcia-Lekue, from the Donostia International Physics Center (DIPC) and Ikerbasque Foundation, has done something analogous, but at the single-atom scale, with the aim of synthesizing new carbon-based materials with tunable properties.

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May 15, 2023

Mysterious sounds in stratosphere can’t be traced to any known source

Posted by in category: sustainability

Solar-powered balloons floating 20 kilometres above ground have recorded inaudible low-frequency signals that have so far not been traced back to any known source.

By Karmela Padavic-Callaghan

May 15, 2023

The future of generative AI is niche, not generalized

Posted by in categories: robotics/AI, sustainability

The relentless hype surrounding generative AI in the past few months has been accompanied by equally loud anguish over the supposed perils — just look at the open letter calling for a pause in AI experiments. This tumult risks blinding us to more immediate risks — think sustainability and bias — and clouds our ability to appreciate the real value of these systems: not as generalist chatbots, but instead as a class of tools that can be applied to niche domains and offer novel ways of finding and exploring highly specific information.

This shouldn’t come as a surprise. The news that a dozen companies have developed ChatGPT plugins is a clear demonstration of the likely direction of travel. A “generalized” chatbot won’t do everything for you, but if you’re, say, Expedia, being able to offer customers a simple way to organize their travel plans is undeniably going to give you an edge in a marketplace where information discovery is so important.

May 15, 2023

Stellantis halts battery plant construction over dispute with Canadian govt

Posted by in categories: government, sustainability, transportation

OTTAWA, May 15 (Reuters) — Automaker Stellantis (STLAM.MI) has stopped all construction at a more-than C$5 billion ($3.74 billion) electric vehicle battery manufacturing plant in Windsor, Canada, over a disagreement with the federal government about subsidies, a spokesperson for the company said on Monday.

“Effective immediately, all construction related to the battery module production on the Windsor site has stopped,” the spokesperson said.

Canada’s industry ministry did not immediately respond to a request for comment.

May 15, 2023

Galaxy’s Hottest Exoplanet: Alien Atmosphere Holds Rare Terbium Surprise

Posted by in categories: space, sustainability

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The rare metal terbium has been found in an exoplanet.

An exoplanet (or extrasolar planet) is a planet that is located outside our Solar System, orbiting around a star other than the Sun. The first suspected scientific detection of an exoplanet occurred in 1988, with the first confirmation of detection coming in 1992.

Continue reading “Galaxy’s Hottest Exoplanet: Alien Atmosphere Holds Rare Terbium Surprise” »

May 15, 2023

Massive autonomous robot is 3 to 5 times faster than a human construction crew

Posted by in categories: robotics/AI, solar power, sustainability

The robot can drive heavy steal beams into the ground at a rate of 1 per 73 seconds, which will help expedite solar farm construction.

May 13, 2023

Musk hires new Twitter CEO to start role in roughly 6 weeks

Posted by in categories: Elon Musk, space travel, sustainability

Rumor has it that NBC Universal executive Linda Yaccarino is lined up to take the role.

Elon Musk is finally ready to let go of the CEO role at Twitter as he announced the appointment of a new CEO at the company. Musk will take on the role of the CTO and oversee product, software, and sysops, he said in a tweet.

Musk, who is also the CEO of other companies such as Tesla and SpaceX, has been under pressure to dedicate more time to these companies. The Tesla stock price dropped significantly after Musk took over Twitter in a $44 billion purchase last year.

May 13, 2023

Hydromea Wireless Underwater Drones

Posted by in categories: drones, economics, robotics/AI, space, sustainability

https://www.youtube.com/watch?v=1fAIIzWOEvk

The Hydromea Exray wireless drone is an underwater drone that uses optics instead of cables for many effortless applications.


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May 11, 2023

Integrated solar combined cycle system with steam methane reforming: Thermodynamic analysis

Posted by in categories: economics, engineering, solar power, sustainability

A transition to a carbon-free economy is the reality of the modern energy industry. Reduction in CO2 emission is one of the main challenge in energy engineering in the last decades. Renewable energy sources are playing an important role on the way to a zero-carbon economy [1,2]. Solar energy is one of the main and almost unlimited energy sources in the World. The different technologies of solar energy use have been developed in the last years [[3], [4], [5], [6], [7], [8]]. However, even though the progress in the development of solar energy technologies is notable, there are a lot of challenges for energy science. One of them is the fact that more than 60% of electricity is produced by conventional technologies via hydrocarbon fuel combustion: steam turbines, gas turbines, etc. While the share of electricity produced by using solar energy is no more than a few percent [9].

Among various ways of utilization of solar energy for electricity generation, a combination of solar energy with the traditional steam and gas turbine cycles can be highlighted. The power plants where solar energy is combined with conventional power cycles are named integrated solar combined cycle systems (ISCCS). In these systems, solar energy is used to produce heat and after that heat is used to generate mechanical work or electricity.

Combined cycle power plants (CCPP) show one of the highest energy efficiency among conventional power plants [10]. The modern cycles with high-temperature gas turbines have an efficiency up to 70% and even higher. In such cycles, the high-temperature gas turbines with the turbine inlet temperature (TIT) up to 1,600 °C are applied [11,12]. In the last years, a lot of various integrated solar combined cycle systems (ISCCS) were developed by various scientists and engineers. The main way to use solar energy in such cycles is a steam generation in CCPP [[13], [14], [15], [16]]. In other words, solar energy in such ISCCS is utilized as an energy source in a steam turbine cycle.

May 11, 2023

Cryptominers Repurpose GPU Farms Amid AI Hardware Shortage

Posted by in categories: food, robotics/AI, sustainability

Some GPU cryptomining outfits, having survived a bleak winter of discontent, have started to grasp AI acceleration opportunities.