WETENSCHAP EN TECHNOLOGIE BL – 4

Hosts: Fraser Cain (universetoday.com / @fcain) Dr. Brian Koberlein (BrianKoberlein.com / @BrianKoberlein) Sondy Springmann (@sondy) Michael Rodruck (@michaelrodruck) Tonight we air Fraser’s pre-recorded interview with Dr. Becky Smethurst from Tuesday, November 26th. Dr. Smethurst is a research fellow at Christ Church College, Oxford University who is researching how galaxies and... Read more »

Hosts: Fraser Cain (universetoday.com / @fcain) Dr. Paul M. Sutter (pmsutter.com / @PaulMattSutter) Dr. Kimberly Cartier (KimberlyCartier.org / @AstroKimCartier ) Dr. Morgan Rehnberg (MorganRehnberg.com / @MorganRehnberg & ChartYourWorld.org) David Dickinson discusses his new book, written with Fraser, called The Universe Today Ultimate Guide to Viewing the Cosmos. Find out more... Read more »

It’s a mystery that’s puzzled astronomers for years. Which came first, supermassive black holes or the galaxies that surround them? The post Supermassive Black Holes or Their Galaxies? Which Came First? appeared first on Universe Today.... Read more »

All stars die, some more violently than others. Once our own Sun has consumed all the hydrogen fuel in its core, it too will reach the end of its life. Astronomers estimate this to be a short 7 billion years from now. For a few million years, it will expand... Read more »

For the first time, astronomers are able to accurately simulate galaxies from shortly after the big bang to today by including a realistic treatment of the effects stars have on their host galaxies. For the past few decades astronomers have simulated galaxies by mixing the basic physical ingredients — gravity,... Read more »

Take a look around the Moon… no, really, take a good look AROUND the Moon! This is a fantastic animation of our planetary partner in space made by the folks on the Lunar Reconnaissance Orbiter team at Arizona State University. Assembled from reflectance maps and digital terrain models created from... Read more »

We’ve got two new podcasts from the Astronomy Cast team of Dr. Pamela Gay and Fraser Cain: Ep. 313: Precession, and Episode 314: Acceleration. 313: Precession The Earth is wobbling on its axis like a top. You can’t feel it, but it’s happening. And over long periods of time, these... Read more »

What’s new in the outer reaches of our solar system? Try the discovery of a Trojan asteroid orbiting Uranus. While a plethora of puns exist for this simple fact, the reality check is that this means there are far more of these objects out there than astronomers expected. The new... Read more »

Why don’t we have insects the size of horses? Why do bubbles form spheres? Why does it take so much energy to broadcast to every star? Let’s take a look at some non-linear mathematical relationships and see how they impact your day-to-day life. Click here to download the episode. Or... Read more »

According to analysis of 125,000 year old animal bones, Neanderthals hunted and killed prehistoric giant elephants, obtaining enormous quantities of meat that could sustain hundreds of people. The post Evidence of giant elephant hunting by Neanderthals appeared first on Now Archaeology.... Read more »

A ancient "knapping workshop" with 600 obsidian handaxes that date back at least 1.2 million years has been discovered in Ethiopia.  The post Obsidian handaxes from 1.2 million years ago found in Ethiopia appeared first on Now Archaeology.... Read more »

When workers on a new highway in Romania realized they were excavating the burial walls of a Hun warrior, they called in archaeologists. The post Tomb of Hun warrior and his horse unearthed in Romania appeared first on Now Archaeology.... Read more »

These ancient underwater structures were discovered by chance in 1986 by Kihachiro Aratake, who was diving to observe sharks in Japan. The post The mysterious underwater Yonaguni-Jima Pyramids in Japan appeared first on Now Archaeology.... Read more »

Around Hadrian's wall, archaeologists excavating in Carlisle, England, found 2,000-year-old engraved gems. The post Roman engraved gems found around Hadrian’s wall appeared first on Now Archaeology.... Read more »

In Rome, Italy, sewer works led to the discovery of a life-sized marble statue that was considered to be Hercules in antiquity. The post Statue resembling Hercules discovered in Rome appeared first on Now Archaeology.... Read more »

In the Cueva Des Cubierta cave in Spain, a large number of animal skulls placed by Neanderthals were found. The post Large number of skulls discovered in Cueva Des Cubierta, a Neanderthal cave in Spain appeared first on Now Archaeology.... Read more »

The discovery of a iron sword and a shield-shaped bronze mirror by archaeologists in this ancient kofun burial mound is a first for Japan. The post Mirror and sword discovered in a 4th-century Japanese tomb appeared first on Now Archaeology.... Read more »

In Germany, scientists found a new kind of dinosaur(pterosaur) with more than 400 teeth that ate similarly to ducks and flamingos. The post Pterosaur with more than 400 teeth discovered in Germany appeared first on Now Archaeology.... Read more »

Environmental pollution by arsenic (As) and hexavalent chromium (Cr(VI)) has been one of the most serious environmental problems in recent years around the world. Their presence in water is a result of both natural and anthropogenic activities, and poses serious risks to human health due to their high toxicity. Adsorption... Read more »

Turquoise hydrogen refers to hydrogen produced through a fossil-fuel-based process in which carbon is separated into solid carbon and no carbon dioxide is produced. In this study, dodecane was selected as a simulated oil for waste plastic pyrolysis recovery oil, and the turquoise hydrogen production characteristics through the thermal cracking... Read more »

Wastewater treatment plants (WWTPs) represent an important input of contaminants in the environment. Therefore, it is critical to continuously monitor the performance of WWTPs to take appropriate action and avoid an influx of contaminants in the environment. In this study, a battery of seven in vitro bioassays covering a selected... Read more »

This article presents the results of research on the development of the technology of laser beam butt welding of 17-4 PH stainless steel sheets and the technology of post-weld heat treatment (PWHT). The developed technology allows for favorable conditions to be obtained and for the appropriate microstructure and hardness to... Read more »

Family farming is strengthening its strategic role in school nutrition, but coordinating between school feeding programs and the agricultural sector has proven to be challenging. The goal of this review was to identify the problems that school feeding programs face in acquiring food from family farms. We selected studies from... Read more »

Integration of a grid with an under-developed remote hilly area faces various technical and geographical challenges. Thus, generation of power from renewable resources in off-grid conditions has become one of the most cost-effective and reliable solutions for such areas. The present research deals with the possible application of an integrated... Read more »

Professionals in the building design and operation fields typically look at standards and guidelines as a reliable source of information and guidance with regard to procedural, contractual, and legal scope and requirements that are relevant to accountability issues and compliance necessities. Specifically, indoor environmental quality (IEQ) standards support professionals to... Read more »

After the first COVID-19 patient was diagnosed, non-pharmaceutical interventions such as social distancing and behavior change campaigns were implemented in South Korea. The social distancing policy restricted unnecessary gatherings and activities to prevent local transmission. This study aims to evaluate the effect of social distancing, a strategy for COVID-19 prevention,... Read more »

One-dimensional (1D) SnO2 nanostructures, as n-type semiconductors with a wide band gap, exhibit unique photoelectric properties that offer potential applications in electronic, photoelectric, gas sensing, and energy generation devices. A detailed study of template-free reaction systems is essential to regulate and efficiently synthesise 1DSnO2 nanostructures. This study employed the hydrothermal... Read more »

Natural killer (NK) cells are a subset of lymphocytes that offer great potential for cancer immunotherapy due to their natural anti-tumor activity and the possibility to safely transplant cells from healthy donors to patients in a clinical setting. However, the efficacy of cell-based immunotherapies using both T and NK cells... Read more »

MRI of effective transverse relaxation rate (R2*) measurement is a reliable method for liver iron concentration quantification. However, R2* mapping can be degraded by noise, especially in the case of iron overload. This study aimed to develop a deep learning method for MRI R2* relaxometry of an iron-loaded liver using... Read more »

Abutilon theophrasti Medik. (velvetleaf) is a problematic annual weed in field crops which has invaded many temperate parts of the world. Since the loss of crop yields can be extensive, approaches to manage the weed include not only conventional methods, but also biological methods, for instance by microorganisms releasing phytotoxins... Read more »

The accurate prediction of atmospheric wind speed in near space is of importance for both middle and upper atmospheric scientific research and engineering applications. In order to improve the accuracy of short-term wind speed predictions in near space, this paper proposes a multi-step hybrid prediction method based on the combination... Read more »

Deep learning approaches are becoming increasingly important for the estimation of the Remaining Useful Life (RUL) of mechanical elements such as bearings. This paper proposes and evaluates a novel transfer learning-based approach for RUL estimations of different bearing types with small datasets and low sampling rates. The approach is based... Read more »

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