विज्ञान समाचार

Conventional lithium-ion batteries based on inorganic cathode materials containing transition metals (e.g., Co and Ni) are facing the ceiling of energy density and the concern of resource sustainability. Therefore, it is necessary to develop novel, highly efficient electrode materials, and rechargeable battery technologies without the limitation of resources.

Optical properties of afterglow luminescent particles (ALPs) in mechanoluminescence (ML) and mechanical quenching (MQ) have attracted great attention for diverse technological applications. A team of researchers from Pohang University of Science and Technology (POSTECH) has garnered attention by developing an optical display technology with ALPs enabling the writing and erasure of messages underwater.

As any percussionist or fidgety pen-tapper can tell you, different materials make different noises when you hit them. Researchers at Drexel University hope this foundational acoustic phenomenon could be the key to the speedy removal of lead water lines that have been poisoning water supplies throughout the country for decades.

एक नया क्षेत्र दुनिया भर में जीवों के जीव विज्ञान के बारे में छोटे और बड़े पैमाने के सवालों से निपटने के लिए मशीन लर्निंग और कंप्यूटर विज़न का उपयोग करने के एक नए युग की शुरुआत करने का वादा करता है।इमेजोमिक्स के क्षेत्र का उद्देश्य कंप्यूटर-सक्षम विश्लेषण और खोज के साथ जीवित जीवों की छवियों को जोड़कर पृथ्वी पर जैविक प्रक्रियाओं के बारे में बुनियादी सवालों का पता लगाने में मदद करना है।

क्वांटम कंप्यूटर, जो शास्त्रीय कंप्यूटरों की तुलना में कई जटिल समस्याओं को तेजी से हल कर सकते हैं, से स्वायत्त वाहनों जैसे उपकरणों में तैनात कृत्रिम बुद्धिमत्ता (एआई) अनुप्रयोगों में सुधार की उम्मीद है;हालाँकि, अपने पूर्ववर्तियों की तरह, क्वांटम कंप्यूटर प्रतिकूल हमलों के प्रति संवेदनशील हैं।

Before a robot can grab dishes off a shelf to set the table, it must ensure its gripper and arm won't crash into anything and potentially shatter the fine china. As part of its motion planning process, a robot typically runs "safety check" algorithms that verify its trajectory is collision-free.

In recent years, materials scientists and engineers have introduced increasingly sophisticated materials for robotic and prosthetic applications. This includes a wide range of electronic skins, or e-skins, designed to sense the surrounding environment and artificially reproduce the sense of touch.

Recently, the National Science Open magazine published online a review article by Professor Jiao Shuhong's group from the University of Science and Technology of China and Professor Cheng Tao's team from Suzhou University. The review discussed the preliminary application and huge development potential of artificial intelligence (AI) technology in battery interface research.

A research team has published new research on edge-nitrogen doped porous carbon for energy-storage potassium-ion hybrid capacitors in Energy Material Advances.

Unmanned Aerial Vehicles (UAVs) have received significant attention in recent years across many sectors, such as military, agriculture, construction, and disaster management. These versatile machines offer remote access to hard-to-get or hazardous areas and excellent surveillance capabilities.

Researchers in Sweden unveiled a new concept for producing hydrogen energy more efficiently, splitting water into oxygen and hydrogen without the dangerous risk of mixing the two gases.

Under real-world haze conditions, captured images not only suffer from the haze but also are affected by the noise, which significantly deteriorates the visibility of images. However, most of existing haze removal methods mainly focus on haze degradation and fail to consider noise interference.

If you recently had trouble figuring out if an image of a person is real or generated through artificial intelligence (AI), you're not alone.

At present, viscose textiles are made of biomass from the forest, and there is no such thing as fully recycled viscose. Researchers at Lund University in Sweden have now succeeded in making new viscose—from worn-out cotton sheets.

Holography technology can restore the complete light field information of a recorded object, which has important applications in fields such as biological microscopic imaging and optical micromanipulation.

The result of a new study on the intrinsic dynamics of spatio-temporal processes conducted at the MOX laboratory of the Politecnico di Milano (Department of Mathematics) by Francesco Regazzoni, Stefano Pagani, Matteo Salvador has been published in Nature Communications.

The National Institute of Standards and Technology (NIST) and its collaborators have delivered a small but mighty advancement in timing technology: compact chips that seamlessly convert light into microwaves. This chip could improve GPS, the quality of phone and internet connections, the accuracy of radar and sensing systems, and other technologies that rely on high-precision timing and communication.

Researchers have moved one step closer to making solid-state batteries from lithium and sulfur a practical reality. A team led by engineers at the University of California San Diego developed a new cathode material for solid-state lithium-sulfur batteries that is electrically conductive and structurally healable—features that overcome the limitations of these batteries' current cathodes.

कॉर्नेल विश्वविद्यालय के शोधकर्ताओं ने एक सेमीकंडक्टर चिप विकसित की है जो भविष्य में 6जी संचार प्रौद्योगिकी के लिए आवश्यक उच्च आवृत्तियों पर छोटे उपकरणों को संचालित करने में सक्षम बनाएगी।

Rechargeable batteries are great for storing energy and powering electronics from smartphones to electric vehicles. In cold environments, however, they can be more difficult to charge and may even catch on fire.