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Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4062
Interesting idea hboy007.
Rowhammer based AI is feasible, tested a variant of this on a very old laptop and even a DDR2 2GB module if overclocked using the spd chip once warmed up to above ambient temperature is unstable in the right way to behave semi classically which actually exceeds the original paper Google published saying the effect is limited to DDR3 only.
for the record the test module was a Transcend 2GB DDR2-800 although it might have been overclocked in the first place; 551803-4592 handwritten label seems to have been applied in India by "Shweta Service Zone".
I suggest here that the effect may also need active feedback of individual chip temperature, the central zone of the memory is the AI core and the edge regions are guard zones which keep the chip hot enough by simple I2R losses. Similar sort of idea to active heating on OCXO modules.
Registered Member #1667
Joined: Sat Aug 30 2008, 09:57PM
Location:
Posts: 374
I was just researching hollow fiber N2 / O2 separators, Since these are quite expensive and I just wanted a small nitrogen source for an N2 laser, I wondered: the active element of these composite tubes is the 1µm thick polyurethane film that is supported by porous PE. Porous support foils could be recovered from LiIon-Batteries (PI / PE / PET microporous foils of the right thickness) or Gore-Tex (nano/microporous PTFE) and combined with PU resin in a spin coater (aka brushless fan minus the blades). A bit ghetto but I'd be surprised to see a complete failure.
ps. appears the GoreTex stuff and gas filter membrane substrates are very much alike:
pps. as for the PUR coating: it can be etched down to a certain thickness using "48% sulfuric acid" see Suzuki et al., "Flexible Tactile Sensor Using Polyurethane Thin Film"
The part that I don't get right now is how to keep the PUR from filling the pores of the carrier membrane...
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4062
Sounds feasible, thanks. Would Li-FePO4 be better for this as the microporous foils might be different. EDIT: Please be careful, burning separators and/or electrolyte can be deadly due to evolved HF.
Had an interesting idea today for a new type of E-ink display that has all the advantages of B/W but can display colour with full resolution and speed, tenatively called "Zeta Imaging" (tm) The trick is to exploit new materials and production techniques which aren't normally used in the same device but when this is done the speed could be up to 50fps at 17 Celsius. The only catch is that there is an extra layer under the glass, other than that its identical so could use existing backplane technology with no modifications. I could probably make the backplane using relatively simple Cu-Si (double damascene) and it would then demonstrate the effect using readily available materials.
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The ideas thread
