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A review on modified carbon materials as promising agents for hydrogen storage

Posted on 28. August, 2018.

Nowadays, energy is an important issue in all countries and this essential subject and the drawbacks of fossil fuels have encouraged researchers to develop new energies. However, among these new energies such as solar energy, wind energy and others, hydrogen is pre-eminent because it has no pollutant by-product and it is thus clean with a huge thermal energy. However, it is not applicable in many industries because of obstacles such as safety, volatility, explosive hazards and low compressibility. 


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Peak phosphorus - peak food? The need to close the phosphorus cycle

Posted on 4. July, 2013.

The peak in the world production of phosphorus has been predicted to occur in 2033, based on world reserves of rock phosphate (URR) reckoned at around 24,000 million tonnes (Mt), with around 18,000 Mt remaining. This figure was reckoned-up to 71,000 Mt, by the USGS, in 2012, but a production maximum during the present century is still highly probable.


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Optical trapping of nanoparticles by ultrashort laser pulses

Posted on 24. April, 2013.

Replacing the continuous-wave- with a pulsed-mode laser in optical trapping reveals novel phenomena, including the stable trap, modifiable trapping positions, and controllable directional ejections of particles on nanometre scales. This opens unprecedented opportunities in both fundamental science and application. Hiroshi Masuhara and his colleagues discuss in Science Progress the electromagnetic formulations and physical interpretations of these new phenomena. Their aim is to show the beauty and promise of this field.


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Feeding and healing the world: through regenerative agriculture and permaculture

Posted on 15. January, 2013.

Let us look a little more closely at fracking for shale gas and shale oil, which has led to a promise of energy independence for the USA, if not the rest of the world.


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Feeding and healing the world

Posted on 20. December, 2012.

The study of soil is a mature science, whereas related practical methods of regenerative agriculture and permaculture are not. In the latest issue of Science Progress, Chris Rhodes elucidates the scientific basis of these remarkable phenomena, and shows how we may solve some of the otherwise insurmountable problems confronting humanity, simply by observing, and working with, the patterns and forces of nature.


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Biochar, soils and carbon capture

Posted on 24. October, 2012.

Could the creation of artificial terra preta assist sustainable agriculture, and possibly avert global warming? In his latest Current Commentary, Chris Rhodes considers the advantages of adding charcoal – “biochar” – to soil with the aim of recreating the properties of the dark earth. Biochar binds the essential nutrients N, P and K, and impedes dramatically the rate at which they are washed away by rain. Minute pores form in the charcoal which can hold more nutrients on its larger surface area and act as "condominiums" for microorganisms to grow in and so increases their density in the soil. However, to be effective, the biochar production process must produce more energy overall than it consumes.


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DNA-binding transcription factors in prokaryotes

Posted on 24. October, 2012.

How organisms contend with environmental changes depend on their genes and ability to regulate their expression. DNA-binding transcription factors play a central role by regulating gene expression By considering the abundance of TFs in bacteria and archaea, the role of DNA-binding domains and their partner domains, and the effects of duplication events in the evolution of regulatory networks provides a comprehensive picture for how regulatory networks have evolved in prokaryotes.


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Lithium-ion batteries on micro and nano scales

Posted on 24. October, 2012.

Lithium-ion batteries offer high energy density, flexibility, lightness in weight, design and longer lifespan than comparable battery technologies. A brief historical review of the development of Li-ion rechargeable batteries highlights the research strategies and the challenges of the synthesis, characterisation, electrochemical performance and safety of these systems. Moving from bulk materials to the nanoscale can significantly change electrode and electrolyte properties and consequently their performance in devices for energy storage and conversion.


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Disruptive technology of additive manufacturing

Posted on 24. October, 2012.

Additive manufacturing could radically change the way in which many products are made and distributed. It fabricates components directly from 3D computer models by selectively depositing, curing, or consolidating materials one layer upon the next. It has state of the art applications. Additive manufacturing is already a valuable tool for surgeons to better understand unique, intricate anatomical relationships that are difficult to visualise using two-dimensional images.


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