Nowadays, the maintenance of wellbore stability is a very important activity in the drilling industry. Wellbore stability can be improved by designing proper drilling fluid.
Researchers at The University of Texas at Austin have designed a way to sense dangerous chemicals using, in part, a simple rig consisting of a smartphone and a box made from Lego bricks, which could help first responders and scientists in the field identify deadly and difficult-to-detect nerve agents such as VX and sarin.
Nerve agents are scary stuff. They are among the most deadly substances on earth, yet can be odorless, tasteless and difficult to detect. But researchers now report in ACS Central Science that they have adapted building materials normally associated with children's toys and a cell phone to help sense these compounds. The new method can sensitively detect these poisons, quantify the amount and distinguish between different classes present at contaminated sites.
A major new study appearing in PLOS Biology on May 31 examines more than a century of fungal pathogens, finding well-aimed biosecurity measures cut the spread of unwanted fungi into a nation, even in the face of increased globalized trade.
Mortality rates were higher during the nine months of military liberation of Mosul, Iraq, than during the 29 months of exclusive Islamic State of Iraq and Syria (ISIS) control, according to a study published this week in PLOS Medicine. The population-based survey demonstrated that high mortality rates resulted from the military offensive despite the use of modern precision-targeted ordnance.
The contribution of economic, social and cultural rights to sustaining global peace is largely overlooked within new developments to tackle violent conflict, says new research led by Lancaster University.
A Northwestern University and Argonne National Laboratory research team has developed an exceptional next-generation material for nuclear radiation detection that could provide a significantly less expensive alternative to detectors now in commercial use. Specifically, the high-performance material is used in a device that can detect gamma rays, weak signals given off by nuclear materials, and can easily identify individual radioactive isotopes. Potential uses include more widespread detectors for nuclear weapons and materials as well as applications in biomedical imaging, astronomy and spectroscopy.
Army scientists, with a team of researchers from the University of Maryland and the National Institute of Standards and Technology, have created a water-based zinc battery that is simultaneously powerful, rechargeable and intrinsically safe.
Researchers have developed a device for upgrading mass spectrometers, which are used to analyze the chemical makeup of unknown substances. The new device analyzes one substance from four different perspectives. Alternatively, it enables multiple samples to be examined simultaneously. By contrast, conventional mass spectrometers analyze one substance at a time.
A team led by Berkeley Lab scientists has developed a process for creating ultrathin, self-assembling sheets of synthetic materials that can function like designer flypaper in selectively binding with viruses, bacteria, and other pathogens. The new platform could potentially be used to inactivate or detect pathogens.