It's a sound solution. They are describing forward error correction with a variable code rate. Reducing the code rate increases the amount of redundancy, allowing the signal to be retrieved when the signal-to-noise ratio is lower. It's a standard part of communications theory and has a strong theoretical basis. A low enough code rate will overcome almost any level of jamming at the cost of reduced data rate, provided the receiver does not saturate.
Will it make any difference to security? LLMs are excellent pattern matchers. The source is a sequence of tokens, the binary is a sequence of tokens. Whats the difference to an LLM?
Railway preservation (full size, not model). It looks crowded when a steam train is running and the moths gather around. The reality, when the trains are not running, is typically quite different, with a small dedicated group. If a place looks too crowded, pick a smaller museum.
Think of all the jobs that have to be done to run a railway and you will be able to find a museum that does it: heavy maintenance, boiler work, fitting and turning, blacksmithing, woodwork, upholstering, painting, catering, engine driving, fireman, signalling, customer service, ...
It's a great way to meet people, learn new skills and work with physical things.
Only problem is this really depends on where you live. There is a nice museum 45 minutes from me - far enough that it is hard to get there for a quick evening after work...
Bourbon sales are in decline. A combination of sales not recovering post Covid pandemic and US tariffs (and presidential belligerence) putting off consumers in export markets.
The "RSL sub-branch" is a not-for-profit welfare organisation, that looks after veterans. For the most part they are small and if they are lucky they get the use of a meeting room in the RSL club.
The "RSL Club" is a multimillion dollar commercial enterprise that looks after its own interests, conducts political lobbying, makes millions of dollars off gambling addicts and hands out token grants in the community to give the impression that they are there to benefit the community. Typically nothing to do with the RSL sub-branch.
Technologies: WiFi, Deep knowledge of drone radio protocols, LTE, P25, LMR, Electronics, Electrical, Systems Engineering, Programming including real-time embedded, Commercialisation, Manufacturing, DSP, FPGA.
Résumé/CV: Built world's first OFDM WiFi modem. Professional engineer with 35 years experience. Have served as Chief Engineer / CTO for multiple companies.
I can't see a problem, as long as the chips are not fraudulently resold. Beyond not using a resource in the first place, reuse is the gold standard in sustainability.
As an engineer, I wouldn't use second hand components for prototyping. When prototyping you need to eliminate as much uncertainty as possible. I'd consider using second hand components in production, provided there is a cost advantage, supply is reliable and my production line includes a test that would pick up faulty components. Even then, I'd be monitoring failure rates and reverting to new components if elevated failure rates caused costs. There's an argument that (well handled) second hand components might even have a lower failure rate than new as they have been burned in.
I'm guessing this company is targeting specialsied repair rather than production. Sometimes complex parts are no longer manufactured and the only option is second hand (often at a premium price).
>I can't see a problem, as long as the chips are not fraudulently resold.
In general, most components are only rated for 2 to 4 re-flow heating cycles before internal damage occurs. On some components the initial re-flow cycle brings the component into the rated tolerance, and for others the PCB forms a bimorph cantilever that physically fatigues the chip contacts/leads.
Production yields are only part of the Infant Mortality Phase of the bathtub curve.
Some components do get more stable with age if and only if left alone, but you can count those on one hand if you still have all your fingers. That is also a 3 hour pedantic conversation no one wants to have.
My intuition in this area is based on chips having a specification on maximum soldering temperature and duration. I'm not sure to what extent that is cumulative. I gather the vulnerability is the bonding of the gold whisker wires to the pads on the silicon, but you would want to check that.
Apart from the absolute temperature, chips have a recommended heating/cooling cycle, including heating/cooling rates. That suggests that differential expansion is a factor, which would likely be cumulative (more cycles = more likelihood of fatigue and damage).
The above is intuition, not the hard data you want.
I think what you are doing is a great idea (effectively demanufacturing). I'm hoping you can solve the practicalities, which as far as I can see are quality assurance and being able to guarantee a steady supply of components and a price point below new.
Any plans to retape the components so they can be put though a pick-and-place machine, or are you looking more towards manual rework? I can see that there is room for innovation in efficient ways to get components off boards at volume, as most component removal is in the form of manual rework.
Not really, and most autistic people I've met are very focused individuals. Met one guy whose whole world was the Unreal engine source, and unless you were talking about that specific area... could care less who you were.
Be kind to yourself first, and maybe get outside for a walk. Best regards =3
the way we see it is that with robotics and coding agents we can offer much comprehensive and traceable tests. anyone can send any hardware they have, we help understand what is reusable, how to verify it and ship the parts back.
curious—what specific failure modes or uncertainties would you want eliminated before you'd consider using recovered parts, even just in production?
Makes sense if the drawers completely fill the volume of the fridge, so most of the air is inside the drawers and there is minimal air loss when the door opens. If the drawer fronts were insulated, each drawer would effectively be its own chest.
Edit: On a reread, I'm guessing you were talking about individual refrigerated drawers? Multiple drawers in a single insulated box (as I interpreted it) could work though, as it would have less exterior surface area, use less insulation for the same thermal resistance and useable volume and have a single cooling unit, which might be more efficient. It would also fit existing fridge alcoves.
If you designed around it, it would fit where existing kitchens have drawers, and the space typically reserved for a vertical fridge would be occupied by shelving. Kind of a neat idea. Microwave drawers are a thing.
Under-counter refrigerators are also a thing. They're often not cheap, though. KitchenAid has a two-drawer one for around $3,000. But you can find off-brand ones for $700, too. I don't know if the KitchenAid is that much better. There are things to take into account. It's not just as simple as 'put short, 24" deep fridge where drawers go."
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