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Tuesday, October 24, 2023

One other 12 months of fascinating developments


Power from Fusion – As reported in Phys.Org [Ref. 1] a breakthrough announcement in fusion got here from Lawrence Livermore Nationwide Labs.  For the primary time an experiment in fusion created extra vitality that was required to generate the fusion.  In contrast to nuclear reactors which make use of radioactive supplies to generate energy, fusion doesn’t have radioactive supplies concerned.  The method is usually described a how the solar creates its vitality.  The thought behind the a long time of analysis is that fusion vitality can be clear (inexperienced) and a dependable supply.

What’s the fusion course of?  The trouble on growing fusion vitality employs hydrogen.  (A little bit chemistry wanted.)  Hydrogen in its most considerable kind consists of 1 proton and one electron.  There are two different types of hydrogen.  Deuterium, which consists of 1 proton, one electron, and one neutron, and Tritium, which has two neutrons.  What is important to create vitality is to mix one atom of Deuterium with one atom of Tritium.  The results of this mixture is one atom of helium, one neutron, and vitality [image from Ref. 2].

The challenges for this course of embrace the truth that the temperature required is hundreds of thousands of levels at pressures that pressure the hydrogen atoms collectively.  Usually, hydrogen atoms would repel one another.  In these situations, hydrogen turns into a plasma and never a gasoline.  This requires constraining the plasma, which requires a magnetic bottle.  Making this occur pushes the state of present applied sciences.  The present experimental development employs 192 very excessive energy lasers specializing in a really tiny spot.  In that tiny spot is a small pellet containing the 2 totally different isotopes of hydrogen.  The whole container is roughly 2,000 microns.  There was some data that the profitable take a look at used a modified shell thickness.  There’s a affordable chance that the modifications within the thickness had been within the nanometer vary.

This effort was a proof of idea.  It’s estimated that the vitality produced for a fraction of a second was larger than all the facility era on this planet for that very same time.  That is solely the subsequent step within the improvement of fusion energy.  However, it’s a vital step proving that energy could be generated.  Not everybody agrees with fusion energy.  Reference 3 has opposing opinions.

Graphene highlights – Graphene has dropped from view because it turns into extra built-in into on a regular basis merchandise.  Nonetheless, there are developments occurring.  Researchers on the Nationwide Graphene Institute employed graphene as an electrode to measure electrical pressure utilized to water and the resultant charge of separation [Ref. 4].  Creating these parameters ought to allow the development in having the ability to extract hydrogen from water.  Hydrogen for a gasoline is being explored by a lot of corporations.

Researchers at Northeastern College (Boston) and College of Texas at Arlington have developed a course of to measure the topmost atomic layer of supplies. [Ref. 5]  They’ve recognized the method as an auger-mediated positron sticking (AMPS).  A key aspect is that when positrons change from vacuum state to floor sure, the state change excites electrons into the vacuum.  Extra element is accessible within the reference. 

A nano-based electronics platform has been developed by researchers at Georgia Tech, Tianjin College, and Kwansei Gakuin College. [Ref. 6] The premise is that this graphene-based platform is suitable with typical, silicon semiconductor know-how.  The thought is that utilizing this new platform for electronics will produce smaller and stronger circuity.

Scientific Integrity – Sadly, it is a subject that has been coated a number of instances over the previous few years.  Some instances analysis outcomes have inaccurate conclusions, incomplete information, or “becoming” information making an attempt to show a speculation.  The latest report, revealed December 15, 2022, [Ref. 7] that has raised controversy is from the Company for Healthcare Analysis and High quality, which is a part of the US Division of Well being and Human Providers.  Their work estimates there are 130 million emergency division visits per 12 months inside the USA.  Utilizing a mean of 25,000 visits per division leads to roughly 5,200 emergency departments in the USA.  Their report signifies there are 50 deaths per facility per 12 months or 260,000 deaths per 12 months in emergency departments because of diagnostic errors!  These conclusions had been republished in late December 2022 by the DC Medical Malpractice & Affected person Security Weblog [Ref. 8], on Twitter [Ref. 39 by the New York Times, and in the UK Daily Mail [Ref. 10].  This data is spreading world-wide.

There’s a downside with this report that pertains to scientific integrity.  An article revealed within the Wall Road Journal, December 30, 2022, [Ref. 11] raises questions in regards to the accuracy of the report conclusions.  That article factors out that the implication that one out of each 500 sufferers die of doctor error.  It questions the statistical technique employed.  The whole variety of sufferers within the examine was 503 with one affected person dying because of a delayed prognosis by an ER doctor.  This text additionally factors out that the examine was targeted on every kind of medical errors and never particularly to estimate dying charges from inaccurate or late diagnoses.  The pattern dimension was inadequate to permit that kind of a conclusion. 

The result’s {that a} report with surprising outcomes, ¼ million emergency room deaths because of doctor error, raises questions in regards to the medical career.  When errors within the course of demonstrates that the conclusions are inaccurate, it raises questions in regards to the researchers and their organizations.  As a aspect subject, the examine was made in Canada utilizing Canadian emergency room information.  How does this display what occurs in the USA?  There haven’t been any clarifications issued as of the date of this weblog.  When issued, any clarification can’t undo the injury of the revealed information in numerous media. 

References:

  1. https://phys.org/information/2022-12-nuclear-fusion-scientists-latest-breakthrough.html  
  2. https://www.vitality.gov/science/doe-explainsnuclear-fusion-reactions
  3. https://www.counterpunch.org/2022/12/28/nuclear-fusion-dont-believe-the-hype/  
  4. https://statnano.com/world-news/96864/Researchers-use-graphene-to-measure-the-properties-of-a-materialpercentE2percent80percent99s-surface-layer
  5. https://www.graphene-info.com/researchers-use-graphene-electrodes-split-water-molecules 
  6. https://www.graphene-info.com/researchers-use-graphene-electrodes-split-water-molecules 
  7. Diagnostic Errors within the Emergency Division: A Systematic Overview  https://effectivehealthcare.ahrq.gov/merchandise/diagnostic-errors-emergency/analysis
  8. https://www.jdsupra.com/legalnews/misdiagnoses-lead-to-250-000-er-8669286/ 
  9. https://twitter.com/nytimes/standing/1604012290734522368
  10. https://www.dailymail.co.uk/well being/article-11546585/ER-misdiagnoses-kill-quarter-million-Individuals-year.html
  11. https://www.wsj.com/articles/false-alarm-about-emergency-rooms-ahrq-physicians-er-misdiagnoses-mortality-rate-us-canada-trust-11672136943

About Walt

I’ve been concerned in numerous elements of nanotechnology for the reason that late Nineteen Seventies. My curiosity in selling nano-safety started in 2006 and produced a white paper in 2007 explaining the 4 pillars of nano-safety. I’m a know-how futurist and is presently targeted on nanoelectronics, single digit nanomaterials, and 3D printing on the nanoscale. My expertise contains three startups, two of which I based, 13 years at SEMATECH, the place I used to be a Senior Fellow of the technical employees once I left, and 12 years at Common Electrical with 9 of them on company employees. I’ve a Ph.D. from the College of Texas at Austin, an MBA from James Madison College, and a B.S. in Physics from the Illinois Institute of Expertise.



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