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Flotation process recovers nearly 100% of silver during solar panel recycling

Australia's growing mountain of solar panel waste could become far more valuable, with University of Newcastle researchers taking a major step toward making solar panel recycling economically sustainable. The team has successfully scaled up a process that recovers valuable silver from end-of-life solar panels, demonstrating almost 100% silver recovery during the world's first continuous pilot-scale flotation trial for solar-panel recycling.

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Neutral salt layer could address one of perovskite solar cells' biggest drawbacks

One of the most promising technologies is perovskite solar cells. They are highly efficient at converting sunlight into electricity, can be manufactured as thin and flexible devices, and require less energy and lower production costs than conventional silicon modules. However, their commercial adoption has long been limited by a fundamental challengeβ€”insufficient long-term stability when exposed to moisture, heat and oxygen.

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Should people marry AI agents?

The widespread use of conversational platforms such as ChatGPT and Gemini is raising important new ethical, anthropological and legal questions regarding the potential risks, misuses and shortcomings of artificial intelligence (AI). In discussing their personal experiences, some people have shared that they formed emotional attachments to AI agents or even felt that they had formed romantic relationships with them.

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New coding technique skips needless calculations, speeding some GPU tasks nearly fourfold

The multiplication of matrices and higher-dimensional arrays called tensors lies at the heart of modern computing. Matrix or tensor multiplication is, in fact, the most common operation carried out in artificial intelligence applications, as well as in scientific simulations and computer graphics. High-performance computers, especially those equipped with graphics processing units (GPUs), are designed to work with so-called dense matrices or tensorsβ€”those that have relatively few zero elements.

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Carbon accounting rules can shape both hydrogen investment returns and emissions

A new study by University of Mannheim researchers Gunther Glenk, Philip Holler and Stefan Reichelstein examines how the assessment of carbon emissions affects incentives for producing electrolytic hydrogen. They found that even stringent accounting rules generally provide sufficient investment incentives. However, they do not necessarily guarantee low-carbon hydrogen. The study is published in the journal Nature Communications.

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The economic realities of fusion powerβ€”a framework for understanding what it would take to be profitable

In the last decade, scientists have shown that fusion energy can work as a physical process. Next question: Can it work economically? A study co-authored by MIT professors Dennis Whyte and Andrew W. Lo proposes a framework for understanding what's needed to make fusion energy commercially viable in the marketplace. The method considers the physical inputs needed to sustain controlled fusion energy production, as well as the cost of building power plants that can compete in energy markets.

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Why do we labor when reading some words but not others? AI offers a partial answer

Why do we breeze through some sentences in a book or article but have to reread others to comprehend their meaning? A team of linguists and data scientists has found a partial answer in AIβ€”some of this processing parallels that of neural-network-based large language models (LLMs). However, other aspects of why we read this way cannot be explained by these technologies, revealing where human and AI language processing diverge and maintaining the mystery of some stages of the reading process.

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Peering inside LLM-based multi-agent systems could expose stealthy attacks

Large language models (LLMs), the models that underpin platforms such as ChatGPT and Gemini, are now used daily by more than a billion people worldwide. Some computer scientists have also been combining several of these models to create multi-agent systems (MAS), in which many LLM-based agents work together to tackle complex problems.

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