419 search results

COP28: inside the United Arab Emirates, the oil giant who hosted the 2023 climate change summit
Nature & Environment

COP28: inside the United Arab Emirates, the oil giant who hosted the 2023 climate change summit

...carbon dioxide emissions driving climate change, many have argued that there is a clear conflict of interest in having oil and gas producers at the helm of climate talks. The UAE is alleged to flare more gas than it reports and plans to increase oil production from 3.7 million barrels a day to 5 million by 2027. Some contend that the oil and gas industry could throw the...
The Art of Breathing
Science, Maths & Technology

The Art of Breathing

...in action. Anxiety and hyperventilation How an anxious mind causes rapid removal of carbon dioxide from lungs, leading to significant consequences. It's all in the breath How conscious, controlled breathing enhances health and wellbeing and tames the mind. Stressed out at work A primary school teacher gets wired up with monitors to show how his body responds to stress....
The Next Big Thing: Nanotechnology
Science, Maths & Technology

The Next Big Thing: Nanotechnology

...carbon, the building blocks of today's nano world. Introducing the Electron and Scanning Tunnelling Microscopes in Cambridge. Quantum Mechanics How we can re-position atoms one by one to build a structure, and the tools needed to do it. Robots in Our Bodies? How we can begin to engineer nano-particles to fix medical problems inside the body. The New Machine Age The future...
Plasma arc cutting
Science, Maths & Technology

Plasma arc cutting

...carbon dioxide, air, or mixtures of these gases. “Plasma” consists of a mixture of neutral atoms, free electrons and positive ions. The plasma arc, which can reach temperatures of up to 28,000°C, is transferred to the workpiece, which is usually positive, where it “blows away” the molten metal. Energies of approximately 10kWh m-3 and thermal efficiencies of...
What can Earth tell us about Mars?
Science, Maths & Technology

What can Earth tell us about Mars?

...carbon cycling in soil environments, specifically studying microbes that consume methanol. The post-PhD move to AstrobiologyOU at the Open University might seem a bit odd but the methods I am using to study microbes in extreme environments are the methods I learned during my PhD; I’m using the same methods to answer a different set of questions. My research is now split...
Nitrotec process (oxygen enhanced nitriding)
Science, Maths & Technology

Nitrotec process (oxygen enhanced nitriding)

...carbon and low alloy steels used for pressed and deep-drawn components. A wide variety and combination of properties can be achieved depending on the process used. Strength increase from 345 to 925 MPa has been achieved in 0.5m thick mild steel pressings, giving 60% weight reduction and 75% thickness reduction. The porous, oxygen-enriched iron nitride layer produces...
Multipoint cutting (translational)
Science, Maths & Technology

Multipoint cutting (translational)

...Carbon, high speed steel and abrasive or diamond coated bands are available. Several variations of bandsawing: High speed sawing: 600–1800 m min-1. Friction sawing: 450–6000 m min-1; metal softened by local heat generation. Electro-band machining: low voltage, high current across workpiece and blade causes arcing which melts metal. Blade does not touch workpiece....
Abrasive jet cutting
Science, Maths & Technology

Abrasive jet cutting

...carbon fibre: 385 mm min-1 6.25 mm titanium: 125 mm min-1 13 mm mild steel: 200 mm min-1 6 mm glass: 150 mm min-1 Process has the advantage of low noise with no fumes or dust, and can be used safely in explosive environments such as the oil and mining industries. Materials: Almost any material from soft, ductile materials to high tensile alloys can be cut, providing it is...